Cooling and heating device

Abstract

A cooling and heating apparatus includes: a refrigeration cycle circuit where a compression means, a gas cooler, a throttle means, and an evaporator are sequentially connected and a refrigerant circulates; and a circulation fluid circuit provided with a circulating pump and a heating device, in which circulation fluid that adjusts a temperature of a control target circulates, wherein the circulation fluid circuit includes: a freely openable and closable low-temperature path where the circulation fluid flows through the evaporator in such a manner that heat is exchangeable between the circulation fluid and the refrigerant, and a freely openable and closable high-temperature path where the circulation fluid flows through the gas cooler in such a manner that heat is exchangeable between the circulation fluid and the refrigerant, and the high-temperature path is provided with a high-temperature tank where the circulation fluid heated by the refrigerant in the gas cooler is stored.

1 . A cooling and heating apparatus comprising:
 a refrigeration cycle circuit where a compression means, a gas cooler, a throttle means, and an evaporator are sequentially connected and a refrigerant circulates; and   a circulation fluid circuit provided with a circulating pump and a heating device, in which circulation fluid that adjusts a temperature of a control target circulates, wherein   the circulation fluid circuit includes:
 a freely openable and closable low-temperature path where the circulation fluid flows through the evaporator in such a manner that heat is exchangeable between the circulation fluid and the refrigerant, and 
 a freely openable and closable high-temperature path where the circulation fluid flows through the gas cooler in such a manner that heat is exchangeable between the circulation fluid and the refrigerant, and 
   the high-temperature path is provided with a high-temperature tank where the circulation fluid heated by the refrigerant in the gas cooler is stored.   
     
     
         2 . The cooling and heating apparatus according to  claim 1 , wherein the refrigerant is carbon dioxide, and heats the circulation fluid under supercritical pressure in the gas cooler. 
     
     
         3 . The cooling and heating apparatus according to  claim 1 , wherein the refrigeration cycle circuit includes a second gas cooler that releases heat of the refrigerant to the outside, on a downstream side of the gas cooler. 
     
     
         4 . The cooling and heating apparatus according to  claim 1 , wherein
 the gas cooler is provided in the high-temperature tank in such a manner that the refrigerant flows from up to down, and   the refrigerant flowing through the gas cooler heats the circulation fluid in the high-temperature tank.   
     
     
         5 . The cooling and heating apparatus according to  claim 1 , wherein the low-temperature path is provided with a low-temperature tank where the circulation fluid is stored, a low-temperature pump that feeds the circulation fluid, and a low-temperature circulation path that returns the circulation fluid to an inlet side of the low-temperature path without feeding the circulation fluid to the control target. 
     
     
         6 . The cooling and heating apparatus according to  claim 1 , wherein the circulation fluid circuit is provided with a three-way valve that switches between whether or not the circulation fluid returning from the control target is fed to the high-temperature path, and a mixing valve that is provided downstream of the three-way valve and mixes the circulation fluid that has passed through the low-temperature path with the circulation fluid to be supplied to the control target. 
     
     
         7 . The cooling and heating apparatus according to  claim 1 , wherein
 there are a plurality of the control targets,   the circulation fluid circuit is provided with a plurality of circuit modules connected to the low-temperature path and the high-temperature path via branch line pipes, and   each of the plurality of circuit modules includes the circulating pump and the heating device, and feeds the circulation fluid to another control target.