Cold energy recovering type variable-capacity air-source heat pump system

Abstract

The invention provides a cold energy recovering type variable-capacity air-source heat pump system, and relates to heating and refrigerating combined systems which alternatively or synchronously run. The cold energy recovering type variable-capacity air-source heat pump system is characterized in that a first subsystem and a second subsystem share a double-channel variable-capacity heat exchanger, wherein a heat exchanger body comprises two refrigerant tube-pass pipelines which are independent from each other; refrigerants in the two channels synchronously exchange heat with hot medium water in a shell-pass pipeline; water medium heat supplying circulating is created by the shell-pass channel through a hot water circulating pipeline and a hot water circulating pump; the first subsystem and the second subsystem are connected to the two refrigerant pipe-pass channels through control valve sets, thus constructing a dynamic controllable refrigerant circulating loop; a heat pump system is that the opening-closing state of the control valve sets of the double-channel variable-capacity heat exchanger is controlled, and the double-channel capacity variation mode is realized through the double-channel variable-capacity heat exchanger, thus the heat exchange area of a shell-pipe type heat exchanger can be effectively utilized, and as a result, the requirement of stable power output under large-load condition can be met; the overall running efficiency of an unit can be greatly improved, and the high energy efficiency running of the heat pump system can be realized.

Description

technical field [0001] The invention relates to a combined heating and cooling system that operates alternately or simultaneously, and in particular to a heat pump combined cooling and heating system that mainly supplies heat while taking into account the supply of cold. Background technique [0002] The introduction of the slogan of intensive society construction promotes a higher degree of integration of the internal functions of the building itself, and the maximization of energy utilization has become a current topic. Today, commercial and commercial places have higher and higher requirements: the air side requires control of suitable temperature and humidity and air cleanliness; the water side water temperature requires suitable year-round. However, the traditional method of separate supply of cold and heat sources has obviously caused the misplacement of resources in different seasons, and at the same time, the initial investment cost of equipment has also been greatly...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a cold recovery type variable capacity air source heat pump system, which is used to solve the problem of reducing equipment scale, saving equipment investment and operating costs, and improving heat exchange efficiency in the process of replacing traditional heating methods with heat pump combined cooling and heating systems and technical issues of unit energy efficiency

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