| 摘要 |
<p>The device is used in refrigeration engineering, in particular in cold stores and technological equipment having autonomous cooling machines such as refrigeration chambers, cooling cabinets and windows, house refrigerators, thermopump installations of "air-air" type and others. It performs intensive, effective and quality defrosting of the external heat-exchange surface of an aircooler and cooling coils. In the device, the hot vapours from the delivery side of compressor (10) are additionally overheated in a heat-exchanger by an electric heater (2) before they are fed for internal heating of the air cooler or the cooling coil. Heat exchanger (2) and the regenerative heat exchanger (9) are mounted on a bypass pipeline (11) between compressor (10) and evaporator (1). 2 claims, 1 figure</p> |
