Abstract

Provided is a vacuum cooler-integrated refrigerator having a refrigeration cycle with a compressor, a condenser, an expander, and an evaporative condenser, wherein the evaporative condenser further comprises: a first hermetically sealed container for evaporating makeup water supplied from the outside and injected therein by heat exchange with refrigerant vapor discharged from the compressor and introduced therein to generate inner vapor and store the same; a pump unit disposed outside the first hermetically sealed container so as to suction the inner vapor, increase the pressure thereof, and deliver the same; and a second container into which the inner vapor flows on the upper side thereof and in which the makeup water delivered by the pump unit is stored.

IPC Classes  ?

• F24F 5/00 - Air-conditioning systems or apparatus not covered by group or
• F28C 1/14 - Direct-contact trickle coolers, e.g. cooling towers comprising also a non-direct contact heat exchange
• F28C 1/16 - Arrangements for preventing condensation, precipitation or mist formation, outside the cooler
• F25B 17/02 - Sorption machines, plants or systems, operating intermittently, e.g. absorption or adsorption type the absorbent or adsorbent being a liquid, e.g. brine
• F25B 39/04 - Condensers
• F25B 41/00 - Fluid-circulation arrangements

Abstract

Provided is a vacuum-type non-blowing cooling tower comprising: a casing; a first airtight container disposed in the casing and generating and storing first inner air; a pump unit disposed outside the first airtight container and sucking and transferring the first inner air; a heat exchange unit which is installed to the pump unit, and in which room-temperature make-up water and the first inner air exchange heat, thereby respectively forming heated make-up water and condensed first inner air; and a second container which is disposed in the casing, and in which the condensed first inner air is introduced through an upper part and the heated make-up water is introduced and stored, wherein the first inner air is generated by the heat exchange between cooling water and the heated make-up water which is sprayed inside the first airtight container.

IPC Classes  ?

• F28C 1/00 - Direct-contact trickle coolers, e.g. cooling towers
• F28C 1/16 - Arrangements for preventing condensation, precipitation or mist formation, outside the cooler

Abstract

The present invention relates to a freeze protection valve which prevents a pipe from freezing by discharging water in the pipe in advance before the pipe is frozen as exterior temperature drops below the freezing temperature of the water. The freeze protection valve comprises: a housing to be coupled to a pipe port of a movable pipe in which a fluid flows; a drain chamber which is provided in a portion of the housing facing toward the pipe port and which has a water intake hole connected to the inside of the movable pipe and a water drain hole connected to the outside of the housing; a receiving chamber which is provided on the opposite side of the drain chamber of the housing and which accommodates a phase change material that is phase-changed from a liquid to a solid according to a temperature drop and reduced in volume; and a plunger which is movably installed in the drain chamber and has: a piston positioned inside the receiving chamber and moved according to the volume variation of the phase change material at one side of the plunger; and a valve for opening/shutting the water intake hole according to the movement of the piston at the other side of the plunger.

IPC Classes  ?

• E03B 7/10 - Devices preventing bursting of pipes by freezing
• F16K 31/64 - Operating meansReleasing devices responsive to temperature variation