A Composite Refrigeration System

Abstract

The invention belongs to the technical field of refrigeration and discloses a composite refrigerating system, which comprises a condenser, a throttling valve, an evaporator, a compressor, a flowing valve and absorption units, wherein an outlet of the condenser is connected with an inlet of the throttling valve; the outlet of the throttling valve is connected with the inlet of the evaporator; the outlet of the evaporator is connected with the inlet of the compressor; the outlets of absorption valves in the absorption units are connected with the inlets of absorption beds; the outlets of the absorption beds are connected with the inlets of desorption mass recovery valves; lower openings of the desorption mass recovery valves in the different absorption units are communicated through a pipeline to form a mass recovery channel; the outlet of the evaporator is connected with lower inlets of the absorption valves; the outlet of the compressor is connected with the inlet of the flowing valve; a right outlet of the flowing valve is connected with the inlet of the condenser; an upper outlet of the flowing valve is connected with right inlets of the absorption valves; and left outlets of the desorption mass recovery valves are connected with the inlet of the condenser. The composite refrigerating system can perform independent driving or coupled driving by using heat energy and electricenergy, so that the stepped use of energy is realized; and mass recovery circulation is introduced, and part of heat which is carried by the steam of a high-temperature and high-pressure refrigerant is recovered, so that the operating efficiency of the system is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of refrigeration, in particular to a refrigeration system combined with mechanical compression and adsorption. Background technique [0002] According to the data provided by the International Institute of Refrigeration, refrigeration and air-conditioning equipment alone consume about 15% of the world's electric energy, and the energy problems caused by the wide application of electric compression refrigeration devices have become increasingly prominent. After throttling in the electric compression refrigeration device, the liquid refrigerant enters the evaporator, absorbs the heat of the object to be cooled, and transforms it into low-pressure steam, and then compresses it into high-temperature and high-pressure steam through the compressor, and releases a large amount of heat after being cooled by the condenser. into a high-pressure liquid refrigerant to transfer heat from a low-temperature object to a hig...

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Problems solved by technology

The system realizes the cascade coupling utilization of energy, but there are still many problems, such as the low operating efficiency of the system, the high-temperature sensible heat of the high-temperature and high-pressure refrigerant vapor formed after compression by the compressor has not been further utilized, and there is a lack of response Methods of supplying heat source issues, etc.

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