The object of the present invention is a system comprising a controlled mechanical ventilation unit VMC and an air mixing unit (1), connected downstream of said VMC unit. Such mixing unit (1) comprises: - an inlet plenum (2) with a first opening (2.1) in direct fluid connection with the delivery duct (P.R) of the fresh air flow (R) coining from the VMC, and a second opening (2.2), equipped with closing means (2.3), provided for the inlet of the recirculating air flow (X); - a fan (3), operated or not according to the system energy needs; - one or more heat exchangers (4), fed by heat transfer fluids coming from thermal sources external to the system; - an outlet plenum (5) in direct communication with the distribution ducts (6) for sending the processed air flow (A) towards the destination environments.
The present invention relates to a heating assembly of an electric water heater, comprising an insulating fitting (1) for a sacrificial anode (A) suitable for the protection against corrosion of the tank (S) of said electric water heater. Said insulating fitting (1) comprises an external part (2) of plastic material and an insert (3) of metal material, partially inserted in said outer part (2). Such insulating fitting (1) is preferably made by co-moulding and has the function of electrically insulating said anode (A) from the support flange (FO) whereon it is fixed and placing it in electrical contact with the closing flange (FA) of said tank (S).
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
C23F 13/00 - Inhibiting corrosion of metals by anodic or cathodic protection
F24H 9/00 - FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL Details
3.
METHOD FOR CHARACTERIZING A STORAGE WATER HEATER AND FOR LEARNING THE DRAWING PROFILE
Object of the present invention is a method for learning, value and timing of the physical and thermal characteristics of the hot water drawings profile in a storage water heater, where said profile repeats cyclically at given time intervals and where there are sensors of temperature (S.loc.i) which read local temperatures (T.loc.i) whence it is possible to devise an average local temperature T.loc approximating the average storage temperature (T.acc) only in the absence of turbulence in the storage tank (S). According to the invention, the amount of each water withdrawal or cluster of withdrawals is considered represented by the reduction (AT.tap) of the storage temperature (T.acc) caused by the water withdrawal and is calculated a posteriori, once the withdrawal is terminated at a time t3 during or at the end of a subsequent heating phase triggered by the reduction of the local temperature (T.loc) caused by the withdrawal and is considered equal to the difference between storage temperature (T.acc) a time before the start of withdrawal and the storage temperature (T.acc) at time t3 plus the increase (ΔΤ) of storage temperature (T.acc) caused by the heating itself. The main advantage of the method of the invention is that the determination of the extent of the withdrawals is not affected by the fact that said local temperatures (T.loc.i), the only ones that can be measured directly, are not generally representative of the temperature (T.acc) average of water in the storage tank.
The object of the present invention is a wall-hung appliance (AP) consisting of a monobloc-type heat pump water heater and intended for wall installation. Said wall-hung appliance (AP) comprises a pump assembly (P) located below the tank (S) and having a box-shaped body (1) with a half-moon shape, so as to outline central (1.1) and rear (1.2) free spaces. Such shape results in a series of advantages: - possibility of installing said wall-hung appliance (AP) in place of a standard storage water heater (TS), using both the same holes and/or hooking points (F) for the fixing of the bracket (A) to the wall and the pre-existing hydraulic connections (T); - said hydraulic connections (T) are located and remain hidden in said rear free space (1.2); - the flange of the overlying tank (S) may be accessed through said central free space (1.1); - said central (1.1) and rear (1.2) free spaces allow directing the cold air flow exiting from the box-shaped body (1) of said pump assembly (P) towards the installation wall of said wall-hung appliance (AP).
The object of the present invention is a tank (1) to be associated with a wall-hung appliance, for example a standard storage water heater (TS) or a heat pump water heater (AP) of the monobloc type. Said tank (1) is adapted to the collection of the waste liquid produced by said wall-hung appliance (AP, TS) and comprises a closed vessel having a shape substantially similar to that of said appliance (AP; TS), whereto it is removably constrained at the bottom.
Heat exchanger (1) for gas condensing boilers, provided with a suitable container body (2), at least one pipe bundle (3), at least one temperature sensor means (4), where said pipe bundle (3) is made by a pipe (3) spiral wound around a central axis, adapted to form a suitable number of turns delimiting a combustion chamber (300), and provides a first end (31), which serves as an inlet for the heat transfer fluid to be heated, and a second end (32), which serves as an outlet for said heat transfer fluid, where: - said exchanger (1) is provided with a partition (5) adapted to divide the combustion chamber (300) into a first sensitive chamber (310) and into a second condensing chamber (320); characterised in that - said partition (5) comprises a disc-shaped element having an outer profile (51) with helical pattern, provided with a layer of insulating material (50); - said partition (5) is screwable along the turns of the pipe bundle (3), so as to regulate and vary the dimensions of the said chambers (310; 320).
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
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 21/00 - Heat-exchange apparatus not covered by any of the groups
The object of the present invention is an air-air or air-water heat pump (HP) where an air conveyor (104) is provided in order to direct the air constituting the heat source for the evaporator (102) towards its evaporator front (106). The invention provides means for improving the uniformity of the air distribution on the evaporator front (106). According to a preferred variant, flow guides (107) are provided that form the channels (108) ending substantially in contact with said evaporator front (106) with sections of outlet area Si such that in correspondence, the air flow density is substantially equal for each of said channels (108). The advantages of the invention consist in the fact that a uniform distribution of the air flow density improves the efficiency of the heat pump (HP).
The object of the present invention is a cover (21) for closing a sealed chamber (2; 22) of a condensing boiler (1) on which at least one exhaust conduit of the combustion fumes produced in said condensing boiler (1) and at least one conduit for the entry of combustion air required for said combustion are intended to fit. Said cover (21) comprises setting means (3; 4) for said said coupling of said at least one combustion fume exhaust conduit and of said at least one combustion air intake conduit. Said setting means (3; 4) being integrated and integrally made with said cover (21).
The object of the present patent is a baffle (1) for the cold water inlet of the tank (S) of a storage water heater. The baffle (1) includes: - an insert (5) of composite material, fitted on the upper end of the cold water inlet tube (6), - a helical spring (2) comprising free intermediate coils (2.2) which define openings between one coil and the other, - a cap (4) set to close the top of said spring (2). The inlet flow of cold water flows through the stretch of insert (5) and continues vertically in the inner space (3) of the spring (2), up to the top of the same, where it finds the path obstructed by the cap (4), thus returning back and entering into the reservoir (S) through the radial openings formed between the free intermediate coils (2.2) of the spring (2).
The object of the present invention is an angular joint for forming the pan of said solar collector. Said angular joint (1) mainly acts as joining element for the sides (21, 22, 23) of said pan (2), imparting the structural stiffness to the latter required for the purposes thereof. Said angular joint (1) further provides support to at least the absorber and the glazed cover of the solar collector, ensures the seal against water infiltrations (and the optional drainage thereof) and provides improved means for handling and properly installing and protecting the same solar collector.
The object of the present invention is a method for managing the heating temperature of a flat water heater (1) consisting of at least two storage tanks (2.M, 2.V) connected in series with one another. Said method provides for the water in the upstream tank (2.M) to be maintained at a storage temperature (TM) higher than a predetermined over-temperature (ATacc) relative to the storage temperature (Tacc) of the water contained in the downstream tank (2.V).
The aim of the invention is a flanging unit (1) of a storage water heater comprising a flange (11) for supporting the heating and safety unit thereof, a counter-flange (12) stiffly constrained to a cap (2) of the water heater and a sealing element (13) interposed between the flange (11) and the outer surface of said cap (2). In particular, threaded bushes (3) are placed and constrained on the counter- flange (12), through plastic deformation techniques, suitable for receiving the screws (4) for tightening the flange (11) to the counter-flange (12).
Method for managing a storage water heater (1) comprising a first learning step during a first drawing cycle and a second step of management of said water heater (1) in subsequent cycles that repeat substantially unchanged relative to the first cycle. During said first step, information is acquired on the water heating speed (Iwh) and for each drawing (Pk), on the corresponding drawing start times (tik,) and temperature drops (ΔTk) caused. During said second step, using the data learnt in the first step, for each drawing (Pk) the water heating is started with an advance time (Δtadvance) relative to the drawing start time (tik) sufficient for bringing the temperature (Tm) to the drawing temperature value (Tset.k) required for ensuring said drawing (Pk). Said drawing temperature value (Tset.k) is given by formula Tset.k = ΔTk + Treq.max + 5 where term Treq.max has a predetermined value that depends on the type of water heater (1).
Method for managing a storage water heater (1) aimed at reducing thermal dispersions, characterised in that at short time intervals (δw), all the w drawings (P1,..., Pi,..., Pw) are taken into account, the drawing start time (ti) whereof falls within a predetermined time window (Δtw) immediately following the current time; at said drawing start times (ti) comprised in said time window (Δtw), as many fictitious drawings (P' 1,..., P'i,..., P'w) are constructed, each having a fictitious drawing start temperature (T'set.i); for each of said fictitious drawings (P'1,..., P'i,..., P'w), the fictitious heating start time (t'ONi) is calculated; upon reaching the earliest of said heating start times (t'ONi), the target temperature (Ttarget) is set to the fictitious drawing start temperature value (T'set.i) of the corresponding fictitious drawing (P'i) provided that it is not higher than the maximum setup temperature (Tset.max) whereas before said earliest heating start time (t'ONi) is reached, the target temperature (Ttarget) is kept equal to the maintenance temperature (Tstand-by). The method keeps the temperature to the minimum values required to ensure the drawings.
F24D 19/10 - Arrangement or mounting of control or safety devices
G05D 23/19 - Control of temperature characterised by the use of electric means
G05D 23/20 - Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
The object of the present invention is an adjustment device (1) capable of splitting the combustion air entering an integrated generator (GI; CGI), into a first and a second flow respectively intended for the main (B. p) and supplementary (B. s) burner of said integrated generator (GI; CGI), as well as of selectively modulating the flow rate of each of said flows, from a null value up to a maximum value.
F23L 13/04 - Construction of valves or dampers for controlling air supply or draught pivoted about a single axis but having no other movement with axis perpendicular to face
F16K 11/074 - 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 pivoted closure members with flat sealing faces
16.
PROCESS FOR THE PRODUCTION OF DOMESTIC HOT WATER AND WATER FOR AMBIENT HEATING, AND RELATIVE BOILER SYSTEM
A process for the production of domestic hot water and ambient heating water, comprising the steps of: - drawing cold water from a domestic water tapping circuit (17, 7), - providing a hydraulic circuit combined and exchanging heat with a burner (3), said hydraulic circuit comprising a first branch (19, 20) for the ambient heating water and a second branch (11, 6, 15) for heating the domestic water, parallel to the first branch (19, 20), - storing in a tank (10) which exchanges heat (E) with the second branch (11, 6, 15) a quantity of domestic water drawn from the tapping circuit (17, 7), - heating the water in the hydraulic circuit by means of the burner (3) according to the demand for ambient heating water and/or domestic hot water, - diverting the water in the hydraulic circuit towards the first branch (19, 20) or towards the second branch (11, 6, 15) according to the demand for ambient heating water and/or domestic hot water. The step for heating the water in the hydraulic circuit and/or the diversion step are controlled according to values representative of the domestic water temperature (Tacc, Ts) and/or of the flow rate (P) of the domestic water drawn from the tapping circuit (17, 7).
A thermostatic mixer (1) for storage water heater (2) suitable for mixing the mains cold water and the hot water at the maximum temperature of said water heater (2), arranged into the tank (201) of said water heater (2), said thermostatic mixer (1) having at least the orifice (802) of said outlet (8) of mixed water connected to the outlet pipe (206; 2O6.a, 2O6.b) of the hot water of said water heater (2).
The object of this invention is a method for the management of water maintenance temperature suitable for reducing thermal energy dispersions in a storage water heater. Said method envisages a procedure that may be carried out by the electronic control of the water heater, the so-called 'Optimisation'. The 'Optimisation' procedure is suitable for optimising the maintenance temperature automatically reducing the preset value T.set if the water heater is not usually used at full capacity thereof, that is, if the user has set a temperature T.set unusually high for his/her actual uses.
The object of this invention is a method for the management of water maintenance temperature suitable for reducing thermal energy dispersions in a storage water heater. Said method envisages a procedure that may be carried out by the electronic control of the water heater, the so-called 'Delay'. The 'Delay' function is intended to carry out the heating of the water heater to the preset temperature T. set during the time band at reduced rate, but postponing the complete heating as much as possible, so that it may end just before the end of such time band at reduced rate.
A heating system gas boiler comprising at least one electronic control system (15) is adapted to be connected, through an interface means (23), to one or more predefined external temperature sensitive devices, such as one room thermostat (RT), one room temperature sensor (RS), one outdoor temperature sensor (OS). The manual control panel (22) includes a manual control means (24) allowing the user to enable a special operation mode on the boiler (10). In this special operation mode the control system (15) selects a water heating strategy from a plurality of water heating strategies stored in a memory means. The type of the heating strategy, selected and performed by the control system (15) depends on the connection or lack thereof to the interface (23) unit, of one or more external devices (RT, RS, OS) and the type of the connected external device or devices (RT, RS, OS), which may be or not be connected to the interface means (23).
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