Hot water system using waste heat from refrigerator - has closed heat exchange water tank connected to second tank via pump

摘要

The hot-water system uses the waste heat from a refrigeration system, the waste heat circuit of the latter forming a heat exchanger with a water tank. The water tank is closed, and connected via a discharge pipe and pump to a second closed tank, also with a discharge pipe. The feed pipe from the water mains has a branch connected via a solenoid valve controlling the pump to the second closed tank. Between this branch and the water mains there is a non return valve in the pipe from the latter shutting in the direction of the mains.