A method for warming workshop cold water systems during closed periods has a heat storage system to retain unwanted heat during production times and to release heat when necessary

摘要

The refrigeration circuit has a compressor, evaporator and condenser providing cold water through valves (V1,V2) during production periods and pumped (13) through a cooling tower through valves ((V5,V6) as well as heating through heat exchangers (10,11,12). During shut down periods the valves (V1,V2) are closed and heat recovered by a pump (9) and heat exchanger (14) when valves (V4,V7) are opened.