A water heating system includes a first heating chamber arranged in parallel with a second heating chamber; a first temperature sensor positioned to sense a first temperature in the first heating chamber; a second temperature sensor positioned to sense a second temperature in the second heating chamber; and a controller configured to: determine a first temperature value based on a first sensor signal from the first temperature sensor, determine a second temperature value based on a second sensor signal from the second temperature sensor, compute a differential between the first temperature value and the second temperature value, determine that scale buildup is indicated in response to the differential exceeding a first threshold, and initiate a corrective action in response to determining that scale buildup is indicated.
F24H 15/288 - Accumulation of deposits, e.g. lime or scale
F24H 1/10 - Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
G01K 1/02 - Means for indicating or recording specially adapted for thermometers
G01K 3/00 - Thermometers giving results other than momentary value of temperature
G01K 3/04 - Thermometers giving results other than momentary value of temperature giving mean valuesThermometers giving results other than momentary value of temperature giving integrated values in respect of time
G01K 3/08 - Thermometers giving results other than momentary value of temperature giving differences of valuesThermometers giving results other than momentary value of temperature giving differentiated values
2.
COMBINED SUPPLY SYSTEM, AND CONTROLLER AND CONTROL METHOD THEREFOR
A. O. Smith (China) Water Heater Co., Ltd. (China)
Inventor
Qiao, Xiaoguang
Zhao, Dewei
Huang, Qiang
Abstract
The invention discloses a combined space and water heating system, and a controller and a control method thereof. The combined space and water heating system includes a first heat source. The control method of a combined space and water heating system includes the following steps: controlling the first heat source to supply a water heating load until the water heating load is met by the first heat source; and changing, when the water heating load is met by the first heat source and there is a demand for a space heating load, an operating state of the first heat source such that the space heating load is supplied on the basis that the water heating load is met; or controlling the first heat source to supply a space heating load until the space heating load is met by the first heat source; and changing, when the space heating load is met by the first heat source and there is a demand for a water heating load, an operating state of the first heat source such that the water heating load is supplied on the basis that the space heating load is met. The combined space and water heating system of this application can intelligently supply the water heating load and the space heating load.
A water heating system includes a burner and a gas valve fluidly connected to the burner to deliver a flow of combustible gas thereto. The gas valve has an adjustable throttle for the flow of combustible gas, along with a motor to adjust a position of the throttle. A controller is configured to determine a throttle position corresponding to a target air-fuel ratio of the burner during a calibration sequence, and to control the motor in order to operate the burner at that target air-fuel ratio throttle position during a start sequence.
The controller is configured to monitor a characteristic of the burner during the start sequence, and to initiate the calibration sequence if the monitored characteristic exceeds an error threshold.
Embodiments of the specification provide a water heater inner tank and a water heater, comprising: a housing which is filled with a phase change material therein; a heating device which is at least partially arranged inside the housing; a thermal conductive structure for storing a thermal conductive medium, the thermal conductive structure being arranged inside the housing; the thermal conductive structure can be used to transfer heat generated by the heating device to the phase change material far away from the heating device through the thermal conductive medium; a heat exchange pipe which is in contact with the phase change material and is used for causing the water flowing through the heat exchange pipe to be heated by the phase change material. The water heater inner tank and the water heater provided in the embodiments of the specification can transfer the heat generated by the heating device to the phase change material far away from the heating device, such that the phase change material close to the heating device and the phase change material far away from the heating device can both be effectively heated, improving the uniformity of the temperature of the phase change material inside the housing and avoiding local overheating of the phase change material that may cause overheating failure, being further beneficial to improving the heating efficiency of the water to be heated in the heat exchange pipe, avoiding users from waiting for a long time, and improving user experience.
F24H 7/02 - Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid
F24H 9/00 - FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL Details
F24H 9/1809 - Arrangement or mounting of grates or heating means for water heaters
A water heating system includes a compressor unit fluidly coupled to a first heat exchanger and a controller operatively coupled to the compressor unit. The controller is configured to operate the compressor unit in a heating mode to circulate refrigerant between the compressor unit and the first heat exchanger in a first direction, determine a loss of superheat in the first heat exchanger while the compressor unit is operating in the heating mode, and initiate a defrosting sequence in response to determining the loss of superheat in the first heat exchanger.
An electronic controller for controlling a heat pump water heater is configured to receive a first signal from a first sensor and receive a second signal from a second sensor. The first signal is indicative of a first variable the second signal is indicative of a second variable. The electronic controller is configured to determine a target flow rate based on the first variable and the second variable and control a water flow rate of the heat pump water heater based on the target flow rate.
A water heater includes first and second cylindrical tank portions, a water outlet stub, and a connecting pipe. The first cylindrical tank portion is capped by a first domed head at a first end of the first cylindrical tank portion and a second domed head at a second end of the first cylindrical tank portion. The water outlet stub is connected to the first domed head. The second cylindrical tank portion is capped by a third domed head at a first end of the second cylindrical tank portion and a fourth domed head at a second end of the second cylindrical tank portion. The first and second domed heads each have an inwardly facing concave surface and an outwardly facing convex surface. The third and fourth domed heads each have an outwardly facing concave surface and an inwardly facing convex surface.
A.O. SMITH (CHINA) ENVIRONMENTAL PRODUCTS CO., LTD. (China)
A.O. SMITH (CHINA) WATER HEATER CO., LTD. (China)
Inventor
Chen, Xiaobo
Wang, Hanling
Yin, Caixia
Abstract
Disclosed in the present invention are a water purifier and a control method therefor. The water purifier comprises: a filter member, wherein the filter member comprises a membrane element and the filter member is provided with a water inlet (11), a pure water outlet (12), and a wastewater outlet (13); a water pump (2), wherein the water pump (2) is arranged upstream of the water inlet (11) and used for pressurizing a fluid fed into the water inlet (11); a wastewater valve (3), wherein the wastewater valve (3) is arranged downstream of the wastewater outlet (13) and the wastewater valve (3) has an open state in which wastewater is allowed to flow out and a closed state in which the wastewater is prevented from flowing out; and a controller, wherein the controller is at least electrically connected to the water pump (2) and the wastewater valve (3). The water purifier has a water production mode used for outputting pure water; and in the water production mode, the wastewater valve (3) is in the closed state within a preset period of time. In the present application, the water production rate can be adaptively adjusted according to different scenarios, such that the water-saving performance can be improved while the water purifier meets corresponding water production rate requirements in different scenarios, thereby improving the user experience; in addition, the reliability and the service life of the water purifier can also be ensured.
A. O. Smith (China) Water Heater Co., Ltd. (China)
Inventor
Liu, Xing
Huang, Qiang
Chen, Tao
Abstract
A baffle device for a flue and a gas water heating device includes a baffle plate, a driving mechanism and a detecting mechanism. The driving mechanism is configured to rotate the baffle in the flue. The detecting mechanism includes a photoelectric sensor to detect the position state of the baffle device in the flue.
Heating boiler component parts, namely, controls and sensors used to measure and maintain optimum air-to-fuel ratio in a combustion system; heating boiler component parts, namely, oxygen sensors
A. O. Smith (China) Water Heater Co., Ltd. (China)
Inventor
Wang, Wei
Jiang, Huahong
Li, Tingyu
Abstract
The present utility model provides a gas exhausting device and a gas water heater, relating to the technical field of gas exhausting equipment. The gas exhausting device comprises an exhaust structure and a buffer structure, and gas in an exhaust channel is dischargeable from an exhaust port; the exhaust structure is further provided with a communication port located upstream of the exhaust port in a discharging flow direction of the gas; the buffer structure is used for forming a buffer cavity in communication with the exhaust channel through the communication port. In the present utility model, the buffer cavity of the buffer structure can weaken the vibration frequency and intensity of the waste gas to prevent transmission of the vibration of the waste gas to the exhaust structure to cause the problem of screech resonance, thereby improving the user's use experience. In addition, by the vibration damping effect of the buffer structure, the range of the ignition and flame spreading interval is enlarged, so that the problem of screech resonance would not occur in the exhaust structure even if the fan is at a larger or smaller speed, which reduces the difficulty of debugging the gas water heater and improves the reliability of the gas water heater.
A water heating system includes a storage tank, at least one heating unit, and a control system. The storage tank includes a recirculation supply port, a return port arranged above the recirculation supply port, and a tank temperature sensor arranged between the recirculation supply port and the return port in a vertical direction. The at least one heating unit includes a water inlet port fluidly coupled to the recirculation supply port and a water outlet port fluidly coupled to the return port. The control system is configured to receive a signal from the tank temperature sensor indicative of a temperature of water in the storage tank, determine a need for heating based on the signal, activate the at least one heating unit to draw water from the storage tank, heat the water, return the heated water to the storage tank, and reduce a rate at which the water is heated.
An air inlet duct connected to an air inlet of a burner assembly of a water heater system includes an outlet connected to the air inlet of the burner assembly, a duct inlet for receiving air, a main conduit connecting the duct inlet and the outlet, a branch connected to the main conduit, and a pressure relief mechanism connected to the branch. The pressure relief mechanism opens when the main conduit reaches a predetermined pressure value. The air inlet duct is adapted to mitigate effects from leaks that develop in the water heater system.
Systems and methods of mitigating a contact weld of a first relay for selectively transmitting power to a first heating element of a water heating system. One method includes providing a signal to open the first relay, determining, following providing the signal to open the first relay, a first temperature measurement of a portion of a fluid within a tank of the water heating system via a temperature sensor, determining whether a difference between the first temperature measurement and a first target setpoint exceeds a first predetermined threshold, and activating, in response to the difference between the first temperature measurement and the first target setpoint exceeding the first predetermined threshold, a vibration device for a predetermined time period, the vibration device being positioned such that a resulting vibration from an activation of the vibration device is transmitted to the first relay.
F24H 15/219 - Temperature of the water after heating
F24H 15/223 - Temperature of the water in the water storage tank
F24H 15/429 - Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based using pre-stored data for selecting operation modes
F24H 15/486 - Control of fluid heaters characterised by the type of controllers using timers
Embodiments of the present application disclose a heating system fault prediction method and apparatus, and an electric water heater. A heating system comprises an electrical parameter detector and at least one heating unit, the heating unit comprises a heating element and a first switch for controlling the start and stop of the heating element, and the electrical parameter detector is used for detecting an electrical parameter of a power supply circuit of the heating element. The method comprises: when a predetermined condition is satisfied, executing a first operation of disconnecting the first switch; and acquiring a duration from when the first operation is executed to when the change of the electrical parameter detected by the electrical parameter detector exceeds a preset value, and when the duration is not less than a first preset duration, generating a fault prediction signal. According to the embodiments of the present application, the possibility of switch failure can be predicted in advance, so that maintenance personnel can promptly maintain or service the switch before the switch actually fails, thereby prolonging the service life of the heating system.
The invention relates to the technical field of a water heating device, and particularly discloses a control method of a gas water heating device and a gas water heating device. The gas water heating device comprises a burning device which includes at least two groups of burners; the control method of the gas water heating device comprises: determining whether the currently required load is within a common load range obtained in advance or not in the case that a first preset condition is met; if it is so, controlling a burner or burner combination corresponding to a common segment to conduct burning; the power range corresponding to the common segment comprises the common load range. With the present scheme, the constant-temperature effect of the water heater can be improved, and user experience is improved.
F24H 15/429 - Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based using pre-stored data for selecting operation modes
A water heating system includes a burner and a gas valve fluidly connected to the burner to deliver a flow of combustible gas thereto. The gas valve has an adjustable throttle for the flow of combustible gas, along with a motor to adjust a position of the throttle. A controller is configured to determine a throttle position corresponding to a target air-fuel ratio of the burner during a calibration sequence, and to control the motor in order to operate the burner at that target air-fuel ratio throttle position during a start sequence. The controller is configured to monitor a characteristic of the burner during the start sequence, and to initiate the calibration sequence if the monitored characteristic exceeds an error threshold.
A water heater includes a tank defining an interior space adapted to contain water and a shroud over the water heater and defining a component space inside the shroud. A first pipe nipple is coupled to a spud of the water heater, the first pipe nipple and spud defining a non-collinear axis that is non-collinear with a pipe axis of a pipe to be fluidly connected to the tank. A flexible connector is connected at one end to the first pipe nipple along the non-collinear axis. A second end of the flexible connector is positioned collinear with the pipe axis. A second pipe nipple is coupled at one end to the second end of the flexible connector and coupled at an opposite end with the pipe. Fluid communication is established between the pipe and the interior space of the tank through the pipe nipple and flexible connector.
A.O.SMITH (CHINA) WATER PRODUCTS CO., LTD. (China)
Inventor
Zheng, Xiaochuan
Shi, Yujia
Zhu, Yu
Abstract
A control method for a gas water-heating apparatus. The gas water-heating apparatus comprises: a first heat exchanger (1); a combustor (2), which is used for heating the first heat exchanger (1); and a second heat exchanger (3), which comprises a first flow channel (4) and a second flow channel (5) that can exchange heat, wherein the first flow channel (4) is in communication with the first heat exchanger (1), such that a heated liquid in the first heat exchanger (1) flows into the first flow channel (4); and the second flow channel (5) is in communication with a domestic water inlet and a domestic water outlet. The control method comprises: acquiring a domestic water usage signal of a user; once the domestic water usage signal is acquired, controlling a first heat exchanger (1) to communicate with a first flow channel (4); acquiring heat energy which is stored in the first heat exchanger (1) and can be released; acquiring a heat load required for heating domestic water to a preset temperature; and controlling the operation of a combustor (2) according to the required heat load and the heat energy, which is stored in the first heat exchanger (1) and can be released, and according to a first preset rule. By means of the control method for a gas water-heating apparatus, the accuracy of controlling the temperature of domestic water is improved, and the problems of the water output temperature of the domestic water from the gas water-heating apparatus being unstable, the thermostatic performance of the gas water-heating apparatus being poor, etc. are solved.
A cartridge filter includes a feedwater inlet, a first outlet and a second outlet, a tube arranged at the center of the cartridge filter, an interior volume of the tube being in fluid communication with the first outlet, and a spiral wound filter assembly extending radially outward from the central tube and including a prefilter, a reverse osmosis filter, and a postfilter. The prefilter is located radially outward from the reverse osmosis filter and the postfilter.
The present application provides a heat exchange fin and a heat exchange device. The heat exchange fin comprises a plurality of water pipe through holes arranged side by side perpendicular to a flue gas flow direction, wherein a notch and a flanging hole are sequentially formed between the adjacent water pipe through holes along the flue gas flow direction, an edge of the notch is provided with a first flue gas baffle, and a first opening is formed at the center of the first flue gas baffle. In the present application, the temperature distribution of the heat exchange fin is more uniform, possibility of generation of the condensed water is reduced on the premise of ensuring heat exchange efficiency, thereby prolonging the service life of the heat exchange.
F28F 1/30 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means being attachable to the element
F24H 1/14 - Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
Embodiments of this disclosure provide a method and apparatus for determining a fault of a heating device and an electric water heater. When the heating device includes at least two heating units in an operating state parallelly arranged on branches of a same phase line and the heating unit include a heating element and a switch controlling the heating element, the method includes: acquiring a main circuit current value of the phase line when the operating state of the heating units is not changed, and determining that a fault occurs in a heating element in at least one heating unit when the main circuit current value is not greater than a first current value; and acquiring a variation value of the main circuit current value caused by turning on/off the switch, and determining that a fault occurs in a heating element controlled by the switch when the variation value of the main circuit current value is not greater than a preset variation value. With the embodiments of this disclosure, diagnosis of faults in a plurality of heating elements in the heating device may be achieved at a low cost and high reliability.
A cartridge filter includes a feedwater inlet, a first outlet and a second outlet, a tube arranged at the center of the cartridge filter, an interior volume of the tube being in fluid communication with the first outlet, and a spiral wound filter assembly extending radially outward from the central tube and including a prefilter, a reverse osmosis filter, and a postfilter. The prefilter is located radially outward from the reverse osmosis filter and the postfilter.
A.O.SMITH (CHINA) WATER PRODUCTS CO., LTD. (China)
Inventor
Jiang, Zihan
Wang, Yilong
Zhang, Chengjun
Abstract
The present invention relates to the field of water heating devices. Disclosed are a gas water heating device and a control method thereof. The gas water heating device comprises a burning device, and the burning device comprises a first group of burners and a second group of burners which can independently start or stop working. The control method of the gas water heating device comprises: when a first preset condition is met, controlling the first group of burners to start burning, and controlling the second group of burners to be in a closed state; and when the first preset condition is met subsequently, controlling the second group of burners to start burning, and controlling the first group of burners to be in the closed state, or controlling the second group of burners to start burning after the first group of burners is started for a first preset number of times, and controlling the first group of burners to be in the closed state. The present application solves the problem that a certain local area of a heat exchanger is prone to failure due to long-term heating, and the service life of heat exchangers is prolonged.
A.O. SMITH (CHINA) ENVIRONMENTAL PRODUCTS CO., LTD. (China)
A.O. SMITH (CHINA) WATER HEATER CO., LTD. (China)
Inventor
Zhang, Juanli
Yuan, Zhen
Abstract
The present invention relates to the technical field of water purification. Disclosed are a TDS measurement device, a control method thereof, a controller, and a water purification device. The control method of the TDS measurement device comprises: applying a first voltage to a first measurement unit and applying a second voltage to a second measurement unit so as to perform a TDS measurement, the first voltage being lower than the second voltage; and, when the polarities of the first measurement unit and the second measurement unit are reversed, changing, a preset time later than changing the voltage applied to one of the measurement units, the voltage applied to the other measurement unit. The present application can effectively improve the precision of the TDS measurement device.
A fluid heating system including a burner unit is operated based on feedback control loops. The fluid heating system comprises a burner unit configured to heat a fluid, a sensor configured to sense a characteristic of the appliance, and a controller coupled to the burner unit and the sensor. The controller includes an electronic processor and a memory. The controller is configured to receive a first signal corresponding to the characteristic from the sensor, determine, based on the first signal, a first feedback loop control, control combustion of the burner unit based on the first feedback loop control, determine, based on the first feedback loop control, a second feedback loop control, and control combustion of the burner unit based on the second feedback loop control.
A condensing heat exchanger (100) capable of lowering a requirement for a fan and a water heater having the same, wherein the condensing heat exchanger (100) comprises: a heat exchanger housing (110) having a flue gas inlet (101) and a flue gas outlet (102); and a heat exchange unit (104) located within the heat exchanger housing (110), wherein a sidewall flue gas exhaust channel (105) communicated with the flue gas outlet (102) is provided between the heat exchange unit (104) and an inner sidewall of the heat exchanger housing (110), the heat exchange unit (104) surrounds a flue gas inlet channel (103) communicated with the flue gas inlet (101), the sidewall flue gas exhaust channel (105) surrounds the heat exchange unit (104), and the heat exchange unit (104) is internally provided with a heat exchange flue which communicates the flue gas inlet channel (103) with the sidewall flue gas exhaust channel (105).
A. O. Smith (China) Water Heater Co., Ltd. (China)
Inventor
Murphy, Mark Allan
Yang, Ciu
Chen, Kaiju
Styer, Michael
Abstract
A water heater dip tube includes an elongated body having an inlet end and an outlet end. An inner volume is arranged within the elongated body. An anti-siphon orifice is arranged along the elongated body proximate the inlet end. The anti-siphon orifice extends through a wall of the elongated body. The dip tube further includes an elastomeric membrane secured to the elongated body. The elastomeric membrane is arranged in the vicinity of the anti-siphon orifice. The elastomeric membrane is operable to block fluid flow through the anti-siphon orifice when a pressure at the inlet end is greater than a pressure at the exterior of the dip tube adjacent to the anti-siphon orifice, and to allow fluid flow through the anti-siphon orifice when a pressure at the inlet end is less than a pressure at the exterior of the dip tube adjacent to the anti-siphon orifice.
The present disclosure discloses a control method of a heating device, which relates to a technical field of heating technique, the heating device comprising: a first water storage unit provided with a first heating mechanism; a second water storage unit communicated with the first water storage unit and provided with a second heating mechanism; and a first temperature detection device configured to measure a temperature of the second water storage unit.
Disclosed in the present invention are a combined supply system, and a controller and control method therefor. The combined supply system comprises a first heat source. The control method for a combined supply system comprises the following steps: controlling a first heat source to supply a hot-water load until the hot-water load is satisfied by the first heat source, and when the hot-water load is satisfied by the first heat source and there is a requirement for a heating load, changing an operating state of the first heat source, and on the basis that the hot-water load is satisfied, supplying the heating load; or controlling the first heat source to supply the heating load until the heating load is satisfied by the first heat source, and when the heating load is satisfied by the first heat source and there is a requirement for the hot-water load, changing the operating state of the first heat source, and on the basis that the heating load is satisfied, supplying the hot-water load. The combined supply system in the present application can intelligently supply a hot-water load and a heating load.
A.O.SMITH (CHINA) WATER PRODUCTS CO., LTD. (China)
Inventor
Zheng, Xiaochuan
Fang, Dian
Zhu, Lifu
Abstract
Disclosed in the present invention are a condensing heat exchanger and a hot water/heating device thereof. The condensing heat exchanger comprises: a shell, which comprises a first end part and a second end part arranged opposite to each other, and a side wall arranged between the first end part and the second end part, the second end part being provided with a mounting part used for mounting a combustor; a smoke outlet, provided on the shell; a heat exchange assembly, provided in the shell; and a first heat insulation part, disposed close to the first end part, a first gap being formed between the first heat insulation part and the first end part, and at least part of flue gas subjected to heat exchange with the heat exchange assembly flowing through the first gap and being discharged from the smoke outlet. According to the condensing heat exchanger and the hot water/heating device thereof provided by the present application, on the premise of ensuring heat insulation and cooling effects, the reliability of the condensing heat exchanger and the hot water/heating device thereof is improved by optimizing the structure in the condensing heat exchanger, and moreover, the cost can be reduced.
A media tank includes a housing having a first housing portion coupled to a second housing portion at an interface between the first and second housing portions, the first and second housing portions collectively defining an interior volume of the housing, and a divider positioned within the interior volume of the housing at the interface between the first and second housing portions to separate the interior volume into a first chamber at least partially defined by the first housing portion and the divider and a second chamber at least partially defined by the second housing portion and the divider. The first housing portion is coupled to the second housing portion via a friction weld at the interface. An annular gap is provided between the divider and the first housing portion. Flash from the friction weld is received within the annular gap.
B01J 19/24 - Stationary reactors without moving elements inside
B01D 24/14 - Downward filtration, the container having distribution or collection headers or pervious conduits
B01J 20/20 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbonSolid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising carbon obtained by carbonising processes
B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
Embodiments of the present application disclose a heat exchange system and a container for the heat exchange system. The heat exchange system comprises the container, a first heat source, a heat exchange end, and a third pipeline. A first outlet of the first heat source is connected to a first inlet of the container through the first pipeline. A first inlet of the heat exchange end is connected to a first outlet of the container via a second pipeline. The third pipeline guides a fluid in the first pipeline to the second pipeline or the heat exchange end. The embodiments of the present application enables, on the basis of coupling a primary system and a secondary system, the fluid in the heat exchange system to be directly supplied to the heat exchange end, thereby achieving rapid heating/cooling.
A water heater includes a tank defining an interior space adapted to contain water and a shroud over the water heater and defining a component space inside the shroud. A first pipe nipple is coupled to a spud of the water heater, the first pipe nipple and spud defining a non-collinear axis that is non-collinear with a pipe axis of a pipe to be fluidly connected to the tank. A flexible connector is connected at one end to the first pipe nipple along the non-collinear axis. A second end of the flexible connector is positioned collinear with the pipe axis. A second pipe nipple is coupled at one end to the second end of the flexible connector and coupled at an opposite end with the pipe. Fluid communication is established between the pipe and the interior space of the tank through the pipe nipple and flexible connector.
A water heater includes an inner water tube coil and an outer water tube coil separated by a drum baffle. The inner and outer coils extend above a top edge of the drum baffle by at least a full turn of each coil. A flue gas bypass path is defined between a top edge of the drum baffle and a top insulation layer above the inner and outer coils. Flue gases flow radially though the inner coil, up along the drum baffle, through the flue gas bypass path, and downwardly over the outer coil to heat water flowing through the inner and outer coils. The water flows into the outer coil at the bottom of the coil, winds upwardly through the outer coil in countercurrent flow with respect to the flue gases, then down through the inner coil.
F24H 1/40 - Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes
F24H 1/16 - Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form helically or spirally coiled
F24H 9/00 - FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL Details
60.
Water heater with reserve capacity, and method of operating the same
A method of operating a water heater, the method including determining a predicted variation of a hot water consumption rate variable over a future time period and calculating a total required operating time of the water heater over that time period. The method further includes determining multiple possible operating profiles of the water heater that provide the total required operating time, and calculating a minimum hot water reserve for each profile. One of the profiles is selected based at least partially on that profile providing a minimum hot water reserve that is not less than a predetermined desired reserve capacity and the water heater is operated over the time period using that profile. The selected profile may be the profile that is calculated to have the lowest operational cost.
F24H 15/335 - Control of pumps, e.g. on-off control
F24H 15/355 - Control of heat-generating means in heaters
F24H 15/429 - Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based using pre-stored data for selecting operation modes
A gas-fired water heater including a water tank, a combustion chamber, a burner assembly disposed within the combustion chamber, a gas valve for controllably supplying gas to the burner assembly, a temperature sensor coupled to the combustion chamber, wherein the temperature sensor generating a signal related to the temperature of the combustion chamber, and a controller having an electronic processor and memory. The controller is configured to receive the signal at a first predetermined time and at a second predetermined time, calculate a change in temperature based on the signal received at the first predetermined time and the signal received at the second predetermined time, compare the change in temperature to a rate of change threshold to produce a first comparison, and shut the gas valve in response to the change in temperature being less than the rate of change threshold.
A water softener system includes a brine tank, an ion-exchange resin and a softener control valve fluidly coupling the brine tank and the ion-exchange resin. The softener control valve has an inlet configured to receive a flow of feed-water and an outlet configured to deliver a flow of product water. A flow meter is configured to monitor a flow rate of water to or from the control valve, and a sensor is arranged upstream of the inlet of the softener control valve to measure a fluid property of the flow of feed-water. A controller is configured to calculate an available exchange capacity of the ion-exchange resin using flow rate data from the flow meter and a hardness value of the feed-water, which the controller calculates using a fluid property value from the sensor and a predetermined coefficient. The controller is also configured to initiate a regeneration of the ion-exchange resin using the brine tank and the softener control valve, and to update the predetermined coefficient based at least partially on the calculated available exchange capacity upon initiating the regeneration.
Embodiments of the present application disclose a method and apparatus for determining a fault of a heating apparatus, and an electric water heater. When the heating apparatus comprises at least two heating units in an operating state which are arranged in parallel on branches of the same phase line and the heating units each comprise a heating element and a switch for controlling the heating element, the method comprises: when the operating state of the heating units is not changed, obtaining a main circuit current value of the phase line, and when the main circuit current value is not greater than a first current value, determining that a heating element of at least one heating unit is faulty; and obtaining a change value of the main circuit current value caused by the turning on and off of the switch, and when the change value of the main circuit current value is not greater than a preset change value, determining that a heating element controlled by the switch is faulty. According to the embodiments of the present application, fault diagnosis of a plurality of heating elements in a heating apparatus can be achieved at a low cost and high reliability.
A water heater includes a tank configured to hold a fluid, a sacrificial anode located within the tank, and a controller coupled to the sacrificial anode. The controller is configured to selectively complete and break an electrical circuit connecting the tank and the sacrificial anode. The controller is also configured to measure a shorted anode current through the electrical circuit, to determine a modulation duty cycle based on a current setpoint and the measured shorted anode current, and to repeatedly complete and break the electrical circuit using the modulation duty cycle.
A fluid heating system including a burner unit is operated based on feedback control loops. The fluid heating system comprises a burner unit configured to heat a fluid, a sensor configured to sense a characteristic of the appliance, and a controller coupled to the burner unit and the sensor. The controller includes an electronic processor and a memory. The controller is configured to receive a first signal corresponding to the characteristic from the sensor, determine, based on the first signal, a first feedback loop control, control combustion of the burner unit based on the first feedback loop control, determine, based on the first feedback loop control, a second feedback loop control, and control combustion of the burner unit based on the second feedback loop control.
A system and method for configuring a water heater. The method includes capturing, with a mobile device a scannable feature of a rating plate and receiving, with the mobile device, an input indicative of a configuration selection. The method further includes configuring, with the mobile device, the water heater based on the configuration selection.
A water heater dip tube includes an elongated body having an inlet end and an outlet end. An inner volume is arranged within the elongated body. An anti-siphon orifice is arranged along the elongated body proximate the inlet end. The anti-siphon orifice extends through a wall of the elongated body. The dip tube further includes an elastomeric membrane secured to the elongated body. The elastomeric membrane is arranged in the vicinity of the anti-siphon orifice. The elastomeric membrane is operable to block fluid flow through the anti-siphon orifice when a pressure at the inlet end is greater than a pressure at the exterior of the dip tube adjacent to the anti-siphon orifice, and to allow fluid flow through the anti-siphon orifice when a pressure at the inlet end is less than a pressure at the exterior of the dip tube adjacent to the anti-siphon orifice.
A water heater includes an outer casing defining a longitudinal axis, an axial direction being defined as extending along the longitudinal axis. The water heater further includes a combustor for production of hot flue gases, a primary heat exchanger including a tube positioned within the outer casing, and a secondary heat exchanger including a plurality of plates coupled together by brazing to form a brazed plate heat exchanger. The secondary heat exchanger includes a first set of passages defined between the plates, and a second set of passages defined between the plates and alternating with the first set of passages in the axial direction. The primary and secondary heat exchangers are in fluid communication such that the flue gases flow through the second set of passages before being exhausted, and water to be heated flows through the first set of passages to a delivery point for use upon demand.
F22B 21/22 - Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically built-up from water tubes of form other than straight or substantially straight
F22B 21/34 - Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically built-up from water tubes grouped in panel form surrounding the combustion chamber, i.e. radiation boilers
F24H 1/10 - Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
F24H 8/00 - Fluid heaters characterised by means for extracting latent heat from flue gases by means of condensation
F28D 1/047 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
F28D 7/00 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
F28D 7/02 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
F28D 9/00 - Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
F28F 1/24 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
F28D 21/00 - Heat-exchange apparatus not covered by any of the groups
70.
Heat pump unit and control method thereof, control device, heat pump system, and combined supply system
A control method for a heat pump unit includes acquiring a first output capability set when the heat pump unit reaches a first preset energy efficiency ratio set at a current ambient temperature; acquiring a total demand load demanded by an indoor area having a heating demand or a cooling demand; and causing the heat pump unit to operate in accordance with the first output capability set when the total demand load is smaller than the first output capability set.
A carbon recovery system and method improve purity of carbon dioxide when it is recovered and include an electrochemical cell including a working electrode and a counter electrode. When a given voltage is applied between the working electrode and the counter electrode, electrons are supplied from the counter electrode to the working electrode. The working electrode then combines with carbon dioxide upon receiving the electrons supplied thereto. An adsorber accommodates the electrochemical cell and introduces a carbon dioxide-containing gas to itself. A liquid supply section supplies liquid to the adsorber with a given voltage being applied between the working electrode and the counter electrode. A discharge section discharges the liquid supplied from the liquid supply section and carbon dioxide-removed gases from the adsorber with the given voltage being applied between the working electrodes and the counter electrode.
B01D 53/32 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by electrical effects other than those provided for in group
72.
CARBON NANOTUBE MICROELECTRODES FOR SENSORS, ELECTROCHEMISTRY, AND ENERGY STORAGE
An electrode includes an insulating surface layer and at least one aligned carbon nanotube fiber embedded in the insulating surface layer. Each of the at least one aligned carbon nanotube fiber has a first end and a second end opposite the first end, and the first end and the second end are separated by a body. Each of the at least one aligned carbon nanotube fiber is composed of a plurality of carbon nanotubes. The first end and the second end are free of the insulating surface layer. The second end is in contact with an electrical conductive material. A method of analyzing an analyte in a sample and a device for energy storage using the electrode are also described.
A water tank configured to store water from a water supply includes an inlet configured to receive water from the water supply, and an outlet configured to dispense water. The water tank includes a reflective coating positioned on an inner surface of the tank, and an end wall including a light emitting diode oriented toward the outlet. The light emitting diode and the reflective coating are operable to disinfect water from the water supply.
The present disclosure discloses a defrosting control method, a central controller and a heating system. The defrosting control method comprises: heating fluid in a flow passage between an inlet and an outlet of a first heat source by a second heat source, at least in a part of process of defrosting by the first heat source; acquiring an operation parameter of the first heat source, wherein the operation parameter comprises a water outlet temperature and/or a water return temperature and/or an operation parameter of a compressor of the first heat source, comparing a current value of the acquired operation parameter with a preset range of the operation parameter, and adjusting a heat exchange amount between the second heat source and the fluid when the acquired current value is within the preset range. The defrosting control method, the central controller and the heating system provided by the present disclosure can improve the defrosting efficiency while considering the heating comfort, and ensure the stable operation of the defrosting process.
F24H 15/355 - Control of heat-generating means in heaters
F24H 15/36 - Control of heat-generating means in heaters of burners
F24H 15/37 - Control of heat-generating means in heaters of electric heaters
F24H 15/429 - Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based using pre-stored data for selecting operation modes
F25B 13/00 - Compression machines, plants or systems, with reversible cycle
A gas-mixing device includes: a shell, where the shell is provided with an air channel for conveying air, a fuel gas channel for conveying fuel gas, and a mixing-gas channel connecting downstream of the air channel and the fuel gas channel. The fuel gas channel includes a first sectional flow area and the air channel includes a second section flow area; which are located on the movable part of the shell. The movable part is provided with a flexible separation component which hermetically separates the air channel and the fuel gas channel. The movable part penetrates through the flexible separation component and enters the air channel and the fuel gas channel and performs a movement to change the first and second sectional flow area.
A hot water temperature sensing cut-off system and method for use with electric water heaters to preclude the flow of unsafe water from the water heater into the hot water distribution conduit to prevent the risk of bacteria transfer in the hot water distribution conduit. One simple solution is to mount a temperature responsive shut-off valve between the hot water supply outlet conduit of the tank of the water heater and the hot water distribution conduit and wherein the valve will shut-off water flow upon detection of an unsafe water temperature below 125 degrees Fahrenheit. Another solution is to use a controller to operate a shut-off valve. A temperature sensor is located to sense the water temperature at the intake of the hot water conduit and feeds a signal to the controller to operate a closure component of the valve to shut-off the hot water supply upon detecting a predetermined low water temperature fed to an inlet end of the control shut-off valve. When the water heats up to a predetermined safe temperature, the controller opens the valve and continues supplying hot water.
A water softener regeneration system for a water softener configured to soften and filter water, the regeneration system includes a water hardness measurement system configured to determine a hardness value of water flowing out of the water softener. A brine tank is in communication with the water softener and operable to regenerate the water softener with brine from the brine tank. A controller is operable to control the brine tank, wherein the controller actuates by one of opening and closing the brine tank based on the hardness value which is indicative of the effectiveness of the water softener.
A multi-functional retrofit cover plate assembly and method for an electric water heater to provide interconnection with an alternative energy system to heat water in a water holding tank of the electric water heater. The cover plate is adapted for replacement connection over a bottom access opening formed in an outer casing of the electric water heater which permits access to a bottom resistive heating element and electrical connections. The retrofit cover plate is shaped to define an internal dedicated compartment. A dual resistive heating element is provided for replacement of the bottom resistive heating element. An electronic switch unit is further provided and it has a power cut-off switch for connection to an alternative supply voltage. A temperature sensor is provided for mounting against an outer surface of the tank of the water heater to feed actual temperature signals of water temperature within the tank, in a lower region thereof, to the electronic switch unit which operates the power cut-off switch upon a predetermined temperature having been attained in the tank of the water heater. The retrofit cover plate and the assembly also make it possible to covert the water heater to a high temperature water heater or to adapt the electric water heater to a thermal fluid heat source.
A water purification system includes a water inlet for delivering feed water, a membrane having an upstream side and a downstream side, and a water outlet for drawing permeate out of the system. The system includes a plurality of valves operable to control a flow path of feed water, the permeate, and impure water through the system, and a drain in connection with the upstream side and configured to receive the impure water and impurities from the feed water. The system includes a tank configured to receive permeate from the downstream side of the membrane and to store a standby volume of the permeate for delivery to the outlet during an initial portion of a water draw, and a control system for manipulating the plurality of valves.
A condensing heat exchanger (100) capable of reducing fan requirements, and a water heater having same. The condensing heat exchanger (100) comprises: a heat exchanger shell (110) having a flue gas inlet (101) and a flue gas outlet (102); and a heat exchange unit (104) located inside the heat exchanger shell (110). A side wall flue gas exhaust duct (105) in communication with the flue gas outlet (102) is provided between the heat exchange unit (104) and an inner side wall of the heat exchanger shell (110). The heat exchange unit (104) surrounds a flue gas intake duct (103) in communication with the flue gas inlet (101). The side wall flue gas exhaust duct (105) surrounds the heat exchange unit (104). The heat exchange unit (104) is internally provided with a heat exchange gas duct connecting the flue gas intake duct (103) to the side wall flue gas exhaust duct (105).
F24H 1/43 - Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes helically or spirally coiled
F24H 8/00 - Fluid heaters characterised by means for extracting latent heat from flue gases by means of condensation
F24H 9/00 - FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL Details
81.
Water heater, and scale detection system and method
The present disclosure discloses a water heater, and a scale detection system and method. The scale detection system comprises: a first temperature detector configured to acquire a first temperature of a heat exchange zone of a water heating device; a second temperature detector configured to acquire a second temperature indicating a water temperature in the water heating device; and a controller in communication with the first temperature detector and the second temperature detector, and configured to acquire a temperature difference between the first temperature and the second temperature based on the first temperature acquired by the first temperature detector and the second temperature acquired by the second temperature detector, and determine that a scale generation amount in the water heating device reaches a preset threshold when at least one of the following judgment conditions is met: the first temperature is not less than a preset temperature threshold; and the temperature difference is not less than a preset temperature difference threshold. The present disclosure can ensure that a user can be reliably and timely reminded to clean the scale under different working conditions.
G01B 21/08 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness for measuring thickness
F24H 1/20 - Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
F24H 9/20 - Arrangement or mounting of control or safety devices
G01K 1/02 - Means for indicating or recording specially adapted for thermometers
G01K 3/00 - Thermometers giving results other than momentary value of temperature
G01K 3/08 - Thermometers giving results other than momentary value of temperature giving differences of valuesThermometers giving results other than momentary value of temperature giving differentiated values
G01K 3/14 - Thermometers giving results other than momentary value of temperature giving differences of valuesThermometers giving results other than momentary value of temperature giving differentiated values in respect of space
G01K 13/00 - Thermometers specially adapted for specific purposes
G01K 13/02 - Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
A water dispensing unit adapted for communication with a water supply includes a main body including a first end, a second end opposite the first end, a first axis extending through the first and second ends, and a second axis extending perpendicular to the first axis. The water dispensing unit additionally includes an inlet configured to receive water from the water supply, an outlet configured to dispense water, wherein the outlet extends along an outlet axis, an inner wall including a reflective liner, and a light emitting diode positioned within the main body. The outlet axis is oriented at an angle relative to the second axis to direct water from the water supply toward the light emitting diode before exiting through the outlet.
A diffuser is provided for use in a thermal storage tank. The diffuser includes a fluid inlet to receive a flow of liquid into the diffuser, and a fluid outlet to discharge the flow of liquid out of the diffuser into an internal volume of the thermal storage tank. A flow circuit extends between the fluid inlet and the fluid outlet. A plurality of flow sections are sequentially arranged along the flow circuit. Each one of the plurality of flow sections defines a cross-sectional flow area for the flow of liquid. The cross-sectional flow area within any one of the plurality of flow sections is greater than the cross-sectional flow area within any of the plurality of flow sections arranged upstream of said one of the plurality of flow sections.
A tankless water heater includes a scale control module (SCM). The SCM is mounted inside or outside of a cabinet which encloses a heat exchanger and source of heat of the water heater. The SCM may include a connector and a cartridge removably attaching to the connector or may only include a cartridge permanently affixed to the tankless water heater. The tankless water heater includes a continuous water pathway inside the cabinet to supply water to all components of the tankless water heater, including the SCM. The tankless water heater receives supply water at its inlet, treats the supply water in the SCM to generate treated water having reduced scale-forming characteristics compared to the supply water, and heats the treated water in the heat exchanger to generate heated treated water.
F24D 19/00 - DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMSDOMESTIC HOT-WATER SUPPLY SYSTEMSELEMENTS OR COMPONENTS THEREFOR Details
F24H 1/30 - Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle being built-up from sections
F24H 1/40 - Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes
The present disclosure discloses a gas mixing device and a gas water heating device. In which, a gas mixing device, comprises: a shell provided with a fuel gas channel for inputting fuel gas, an air channel for inputting air and a gas mixing channel, the fuel gas channel being provided with a first cut-off portion capable of changing a flow area, and the air channel being provided with a second cut-off portion capable of changing a flow area; a moving part movable in the shell, the moving part simultaneously changing the flow areas of the first cut-off portion and the second cut-off portions by moving. The gas mixing device and the gas water heating device can provide a higher regulation ratio, thereby solving the problem that the water temperature is too high in summer.
The present disclosure discloses a heat exchange pipe, a heat exchanger and a water heating apparatus. The heat exchange pipe comprises: a pipe body and a plurality of fins fixedly disposed to sleeve the pipe body; a flow guiding structure is provided at a partial outer edge of the fin; and a flow guiding flue is formed between the flow guiding structure and an outer wall of the pipe body. The heat exchange pipe, the heat exchanger and the water heating apparatus provided by the present disclosure can improve the flue gas flow path and the heat exchange efficiency.
F24H 1/43 - Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes helically or spirally coiled
F24H 9/00 - FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL Details
F28D 7/04 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being spirally coiled
F28F 1/32 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
A temperature sensor securing system and method is described for securing two or more temperature sensors against an outer surface of a side wall of a tank of an electric water heater. The temperature sensors are secured spaced apart on an elongated support such as a circuit board which is held in position against the tank outer surface by support means. An expandable liquid foam causes the temperature sensors to be biased against the outer surface of the tank side wall to sense the temperature of the side wall at the location of the sensors and to generate actual temperature signals to a controller which is programmed to communicate with a subscriber and/or energy provider to control the water temperature inside the tank.
F24H 1/20 - Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
F24H 9/20 - Arrangement or mounting of control or safety devices
G01K 1/143 - SupportsFastening devicesArrangements for mounting thermometers in particular locations for measuring surface temperatures
G05D 23/19 - Control of temperature characterised by the use of electric means
F24H 15/14 - CleaningSterilisingPreventing contamination by bacteria or microorganisms, e.g. by replacing fluid in tanks or conduits
F24H 15/174 - Supplying heated water with desired temperature or desired range of temperature
F24H 15/37 - Control of heat-generating means in heaters of electric heaters
F24H 15/225 - Temperature of the water in the water storage tank at different heights of the tank
F24H 15/443 - Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based using a central controller connected to several sub-controllers
F24H 15/457 - Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based remotely accessible using telephone networks or Internet communication
F24H 15/414 - Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
Installation, repair, and maintenance of water treatment, softening, conditioning, and filtering products and systems Water and water treatment assessment services, namely, consulting services in the field of water treatment Water assessment services, namely, water testing and analysis services
Water heaters; electrical boilers and heating boilers; hot
water generators operated with steam or boiler water as
energy source; packaged hot water generator systems; hot
water tanks, namely, pump tanks, expansion tanks and
retention tanks; hot water storage tanks; Water filtering
apparatus; water purifying apparatus; water softening
apparatus; water acid neutralizers; water descalers; water
filters; filters for drinking water; water filtering
devices, namely, water purification installations for use in
whole-home water filtration units, refrigeration water
filtration units, under-sink water filtration units and
reverse osmosis water filtration units; water filtration
replacement cartridges for use in refrigerators, ice makers,
under-sink water filtration units, whole-home water
filtration units and reverse osmosis water filtration units;
accessories for the aforementioned goods, namely, strap
wrenches for changing replacement water filters, silicone
lubricants and o-rings for sealing water filtration units,
and grounding kits.
A system and method for controlling power to a water heater. The method comprises providing the water heater in a locked state, wherein at least one heating element of the water heater is inoperable when the water heater is in the locked state, coupling a digital key module to a communications port of the water heater, and receiving a digital key from the digital key module through the communications port. The method comprises coupling an electrical grid controller to the water heater through the communications port and placing the water heater in an unlocked state, wherein the at least one heating element of the water heater is operable when the water heater is in the unlocked state.
A combination boiler provides heated water to a boiler loop and domestic hot water (DHW) to a domestic water loop. The combination boiler includes a primary heat exchanger (PHE) connected to the boiler loop and a burner to provide heat to the primary heat exchanger. A secondary heat exchanger (SHE) transfers heat energy from the boiler loop to the domestic water loop. A controller monitors a PHE inlet temperature and a DHW output temperature, obtains a pre-heat initialization temperature threshold and a pre-heat cancellation temperature threshold, and detects a low temperature condition. A pre-heat operation is initiated responsive to the low temperature condition by circulating heated water from the PHE to the SHE. The burner is selectively fired at least in part according to an outlet temperature of the PHE.
The present disclosure discloses a proportional valve body, a proportional valve and a manufacturing method for a proportional valve body. The proportional valve body comprises a body extending in an axial direction, the body being provided with a first cavity and a second cavity penetrating therethrough in the axial direction and isolated from each other; the body being further provided with a first through hole penetrating through an outer wall of the body, the first hole being communicated with the first cavity and isolated from the second cavity. In the present disclosure, the first cavity and the second cavity of the proportional valve body penetrate through the body in the axial direction, thus the general structure of the proportional valve body can be obtained by means of extrusion molding. Extrusion molding has the advantages of easy operation, high productivity, and high utilization ratio of raw materials. And the proportional valve body obtained by means of extrusion molding has favorable structural and mechanical properties.
F16K 27/04 - Construction of housingsUse of materials therefor of sliding valves
F16K 31/08 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet using a permanent magnet
F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet
F16K 11/07 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only sliding valves with linearly sliding closure members with cylindrical slides
F16K 3/24 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
The present application discloses a multifunctional water path and a water mixing valve. The multifunctional water path comprises: a first water path; a second water path, wherein water outputted from the first water path and water outputted from the second water path are mixed to form mixed water; a flow sensor, wherein the flow sensor is provided on at least one of the first water path and the second water path; a temperature sensor, wherein the temperature sensor is provided on at least one of the first water path and the second water path; and an ozone generation module, wherein the ozone generation module is provided on at least one of the first water path and the second water path. In the multifunctional water path and the water mixing valve provided in the present application, the ozone generation module is controlled to ensure the ozone concentration is stable and effective under various conditions, thereby ensuring that the concentration of ozone water acquired by a user is appropriate, and facilitating removal of pesticide residues on fruits and vegetables washed by a user.
A system and method for treating water containing at least one contaminant. The system and method include a water treatment module such as a reverse osmosis unit. An electrochemical contaminant detection system is positioned in the waste water stream of the water treatment module. The contaminant detection system includes a contaminant sensor and a water quality sensor module. The contaminant sensor measures the concentration of the contaminant in the waste water stream and the water quality sensor module measures one or more water quality parameters of the waste water stream. A processor uses an algorithm to determine the concentration of the contaminant in the feed water based on the measurements of the contaminant sensor and water quality sensor module.
G01N 21/00 - Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
C02F 1/469 - Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
C02F 1/46 - Treatment of water, waste water, or sewage by electrochemical methods
C02F 1/00 - Treatment of water, waste water, or sewage
G01N 27/00 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
C02F 101/20 - Heavy metals or heavy metal compounds
G01N 27/26 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variablesInvestigating or analysing materials by the use of electric, electrochemical, or magnetic means by using electrolysis or electrophoresis
A water heater system includes a gas burner configured to selectively produce flue gases, and a heat exchanger for heating water in the water heater system. The water heater system is operable in a heating mode, and a standby mode. An exhaust assembly is in communication with the heat exchanger, and includes a condensate collector configured to receive the flue gases and condensate. A first temperature sensor is positioned to sense a temperature of the condensate within the condensate collector. The first temperature sensor is configured to detect a rate of temperature change of the condensate. A controller is configured to determine a leakage when the rate of temperature change adjusts from a first state to a second state when the water heater system is in the standby mode after the water heater system was in the heating mode.
A safety system and method to prevent water within a top portion of a tank of an electric water heater to drop below a safe temperature during a load shedding period, other than a full emergency grid failure, by a power provider whereby to prevent the propagation of harmful bacteria in a top portion the tank. A control device monitors the water temperature in the top portion of the tank by the use of a temperature sensor. If the control device detects a temperature of the water in the top portion of the tank inferior to 140 degrees F., it will by-pass the instructions of the power provider and connect power to one or more of the resistive heating elements of the tank until a predetermined temperature above 140 degrees F. is attained before switching off the resistive heating elements.
