Compression-absorption type refrigerating machine

Abstract

The invention relates to a compression-absorption type refrigerating machine set. The invention is characterized in that a control valve, a coolant liquid pump, a compressor and a newly added throttlevalve are added into a single stage first class absorption type refrigerating machine set to form the compression-absorption type refrigerating machine; coolant liquid from an evaporator or a condenser is conveyed to an absorber or the condenser through the coolant liquid pump or a newly added second throttle valve; coolant steam formed after the coolant liquid absorbs heat enters in the compressor; compressed high pressure coolant steam enters in a generator or a rectifying tower to release condensing heat; after being throttled by the newly added throttle valve, coolant liquid enters in thecondenser together with the coolant steam from the generator or the rectifying tower; and after releasing heat or being throttled by the throttle valve, the coolant steam and the coolant liquid return to the evaporator or the coolant steam and the coolant liquid return to the absorber or the condenser after being throttled by the newly added second throttle valve. The compression-absorption typerefrigerating machine set recycles absorption heat or condensing heat by the compressor, thereby realizing the replenishment to driving heat sources, reducing the amount of recycling cooling water andimproving the performance index of recycling.

Description

technical field [0001] The invention belongs to the technical field of low-temperature heat source refrigeration. Background technique [0002] Compression refrigerator is a mature refrigeration technology at present. It uses high-grade electric energy or mechanical energy as its energy source, and its structure is relatively fixed. In order to improve its performance index, people have carried out a lot of work on the selection of refrigerants, the application of frequency conversion technology, and the enhancement of heat transfer effects. However, compared with its fixed structure, it is difficult to greatly improve the performance index of the unit. [0003] Absorption refrigerator is a high-efficiency and energy-saving device that uses heat energy as the driving force to achieve refrigeration, and has been widely promoted and used in industry and civil use. In order to make the absorption refrigeration machine have a relatively high performance index, people have propo...

AI Technical Summary

Problems solved by technology

[0004] For some low-temperature and unstable heat sources, such as solar energy, or some special occasions limited by the amount of cooling water and turbulence, such as ships, automobiles, airplanes, etc., the absorption refrigeration unit may have a low performance index due to the large amount of cooling water required , or due to the adoption of a two-stage or multi-stage structure that makes the system complex and bulky, the application of the absorption refrigerator is limited

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