Steam compression heat pump using water as working medium
A compression heat pump and steam technology, which is applied in the field of low-temperature waste heat utilization and refrigeration, can solve the problems of decreased performance index, low heat load of a single machine, and limited application scope, and achieves the effect of improving performance index and saving power consumption.
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[0027] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0028] figure 2 Shown is the structure and process of the vapor compression heat pump provided by the present invention, using water as the working medium, using impeller compressors for two-stage compression and heat extraction between stages, reflecting the essence of the present invention. Structurally, this type of heat pump system is mainly composed of a primary compressor 1, a secondary compressor 2, a condenser 4, a throttle valve 5, an evaporator 6, an interstage heat extractor 7, and a regenerator 9. The waste heat fluid (a) enters and exits the evaporator 6 to complete the heating of the working medium (c) from the condenser 4, which is throttled and depressurized and cooled by the throttle valve 5, to generate low-pressure saturated steam, and its own temperature is reduced; The saturated steam from the evaporator 6 is properly superheate...
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