Heat-transfer-medium heating and cooling apparatus

Abstract

Disclosed is a heat-transfer-medium heating and cooling apparatus in which a pump which pumps out a heat transfer medium, a heat exchanger which cools the heat transfer medium, a reactor whose temperature is controlled by the heat transfer medium, and a heating unit which heats the heat transfer medium are disposed in a recirculation path. A reserve path which branches upward from a pump-suction-side path extending from the heating unit to the pump and connects to a liquid phase portion of an expansion vessel is provided in the pump-suction-side path.

1 . A heat-transfer-medium heating and cooling apparatus comprising: 
 a pump which pumps out a heat transfer medium;    a cooling unit which cools the heat transfer medium discharged from the pump;    a reactor whose temperature is controlled by the heat transfer medium output from the cooling unit; and    a heating unit which heats the heat transfer medium output from the reactor, wherein    a recirculation path for recirculating the heat transfer medium to the pump via the pump, the cooling unit, the reactor, and the heating unit,    a reserve path being provided in a pump-suction-side path extending from the heating unit to the pump, and branching from the pump-suction-side path to connect to a liquid phase portion of a expansion vessel.    
   
   
       2 . The heat-transfer-medium heating and cooling apparatus according to  claim 1 , wherein the reserve path branches upward from the pump-suction-side path.  
   
   
       3 . The heat-transfer-medium heating and cooling apparatus according to  claim 1 , wherein the expansion vessel has a condenser communicating with a gas phase portion of the expansion vessel, and having a cooling unit which cools a heat transfer medium vapor for liquification thereof, a path for returning the heat transfer medium liquefied by cooling in the cooling unit, and a gas relief valve which discharges a gas from the gas phase portion of the condenser according to a pressure in the condenser.  
   
   
       4 . The heat-transfer-medium heating and cooling apparatus according to  claim 2 , wherein the expansion vessel has a condenser communicating with a gas phase portion of the expansion vessel, and having a cooling unit which cools a heat transfer medium vapor for liquification thereof, a path for returning the heat transfer medium liquefied by cooling in the cooling unit, and a gas relief valve which discharges a gas from the gas phase portion of the condenser according to a pressure in the condenser.