Heating heat pump system used in ultralow-temperature environment

Abstract

The invention provides a heating heat pump system used in an ultralow-temperature environment. The heating heat pump system comprises a main circulation loop which is composed of a first compressor (1), a first condenser (2), a vortex tube (4) and an evaporator (7), wherein the first condenser (2) is used for exchanging heat with a first water pipe (16) to make hot water or achieve heating, and a second condenser (5) is arranged on a pipeline between the first condenser (2) and the evaporator (7). The heating heat pump system further comprises an auxiliary circulation loop which is connected with the main circulation loop in an overlying mode through the second condenser (5), wherein the auxiliary circulation loop is used for exchanging heat with a second water pipe (17) to make hot water or achieve heating. By means of the heating heat pump system, heat of refrigerant in the main circulation loop can be further absorbed, intermediate-temperate water is made through the overlying circulation loop and is supplied together with high-temperature water made through the first condenser, the temperature range of made hot water is widened, intelligent regulation of the water temperature is achieved, and different demands of different users for hot water are met; energy at the hot end of the vortex tube is effectively utilized, and the COP of the system is improved.

Description

technical field [0001] The invention belongs to the technical field of thermal energy conversion and utilization, and in particular relates to a heat pump system for heating and heating in an ultra-low temperature environment. Background technique [0002] When the air source heat pump in the prior art is in use, when the ambient temperature is low (such as in cold regions, such as Northeast my country, etc.), it cannot fully absorb the heat in the environment for heating, heating or hot water production , resulting in low energy efficiency of the entire heat pump system, low COP value, large energy consumption, and there is a high possibility of adverse phenomena such as frosting, resulting in poor performance of the entire system, which cannot meet the normal use of users (such as Heating, heating, or hot water production); and the temperature range of hot water produced is either high or low, and the temperature range of hot water production is limited, which cannot meet th...

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Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects of the air source heat pump in the prior art that the temperature range of hot water production is limited and cannot meet the needs of users, so as to provide a heat pump system for heating and heating in an ultra-low temperature environment

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