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Preparation method of hot water by using open type heat pump via air circulation

An air circulation and heat pump hot water technology, which is applied in the field of open heat pump hot water preparation with air circulation, can solve the problems of insufficient building heating and domestic hot water preparation methods, and achieves increased mass flow, improved performance coefficient, and is environmentally friendly. Effect

Active Publication Date: 2018-12-07
DALIAN NATIONALITIES UNIVERSITY
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AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of insufficient building heating and domestic hot water preparation methods in cold and severe cold areas, the present invention provides an air circulation open heat pump hot water preparation method. This method uses one-stage preheating and two-stage compression to prepare high-temperature air. The heating of the circulating water is completed by the second heat exchange, which can prepare building heating water and domestic hot water above 60°C in cold and severe cold regions

Method used

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  • Preparation method of hot water by using open type heat pump via air circulation
  • Preparation method of hot water by using open type heat pump via air circulation

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Embodiment Construction

[0018] An open heat pump hot water preparation method with air circulation, comprising a first air compressor 1, a turbine compressor part 2, a second air compressor 3, a regenerator 4, an air / water heat exchanger 5 and an intermediate heat exchanger 6. The cold air in the atmospheric environment enters the regenerator 4 through the air inlet 11, enters the intake end of the first air compressor 1 after being preheated, and is discharged from the exhaust end after being compressed and heated by the first air compressor 1 , enter the intermediate heat exchanger 6, and heat the circulating water flowing through the intermediate heat exchanger 6 for the first time; after the air is discharged from the intermediate heat exchanger 6, it is divided into two paths, one of which enters the compressor part 201 of the turbine compressor part 2, After being compressed by the compressed air part 201, the temperature rises and the pressure is raised, it is discharged from the exhaust end; t...

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Abstract

The invention discloses a preparation method of hot water by using an open type heat pump via air circulation. According to the preparation method, after air is subjected to primary preheating by a reheater, a first air compressor, the air is subjected to two-stage compression by a first air compressor, a second air compressor and a turbine air compressing component for preparation of high-temperature air, circulating water is heated by two times of heat exchange by an intermediate heat exchanger and an air / water heat exchanger, and water above 60 DEG C for building heating and domestic hot water can be prepared in cold and severe cold areas.

Description

technical field [0001] The invention relates to a hot water preparation method, in particular to an air circulation open heat pump hot water preparation method. Background technique [0002] At this stage, the world is paying more and more attention to the issues of global warming and environmental protection. The heat pump is a cold and hot multiplexing device that can meet the diverse needs of cooling, heating and domestic hot water. However, in the selection of refrigerants, it is necessary to consider not only its environmental protection, but also its impact on efficiency. At present, HCFC (hydrochlorocarbon) refrigerants have been subject to more and more stringent controls. In addition, for the traditional vapor compression heat pump, there is a problem that the heating capacity is inconsistent with the change of the building heat load. When the outdoor ambient temperature drops, the building heat load increases, but the heating capacity of the traditional vapor comp...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H4/02F25B1/10F25B9/00F25B30/02
CPCF24H4/02F25B1/10F25B9/004F25B30/02
Inventor 蒋爽王树刚李双双杜伟
Owner DALIAN NATIONALITIES UNIVERSITY
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