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heat pump system

A heat pump system and heat technology, used in heat pumps, lighting and heating equipment, refrigeration safety arrangements, etc., can solve problems such as low energy efficiency, and achieve the effect of improving energy efficiency and increasing the ability to transport heat

Active Publication Date: 2021-11-05
QINGDAO HISENSE HITACHI AIR CONDITIONING SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the technical problem of low energy efficiency when the inlet water temperature is high in the existing heat pump system, the present invention provides a heat pump hot water system, which reduces the temperature of the refrigerant before evaporation and increases the energy efficiency of the refrigerant when it evaporates. Absorbed heat, improving system energy efficiency

Method used

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Embodiment 1

[0041] Such as figure 2 As shown, the heat pump system of this embodiment includes a compressor 11, a first heat exchanger 12, a first throttling device 13, a second heat exchanger 14 and a gas-liquid separation device 15, and the compressor 11, the first A heat exchanger 12 , a first throttling device 13 , a second heat exchanger 14 and a gas-liquid separation device 15 form a closed-loop refrigerant main circuit. The heat pump system also includes a first auxiliary condensing circuit 16, its inlet is connected between the first heat exchanger 12 and the first throttling device 13, its outlet is connected with the gas-liquid separation device 15, and the first auxiliary condensing circuit 16 is used for The heat of the refrigerant in the main refrigerant circuit is absorbed, and the temperature of the refrigerant entering the second heat exchanger 14 before evaporating is lowered, so as to increase the heat that the refrigerant can absorb when evaporating.

[0042] The refr...

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Abstract

The invention discloses a heat pump system, comprising: a refrigerant main circuit, including: a compressor, a first heat exchanger, used to condense the refrigerant; a first throttling device, used to throttle the refrigerant pressure; the second heat exchanger, which is used to evaporate the refrigerant; the gas-liquid separation device, which is arranged at the inlet end of the compressor, and is used to separate the gas-liquid of the refrigerant before entering the compressor; the heat pump system It also includes: a first auxiliary condensation circuit, the inlet of which is connected between the first heat exchanger and the first throttling device, and the outlet of which is connected with the gas-liquid separation device. The heat pump hot water system of the present invention can absorb the temperature of the refrigerant before evaporating in the main circuit by setting the first auxiliary condensing circuit, increase the heat that the refrigerant can absorb when evaporating, and improve the energy efficiency of the system. After the refrigerant in the first auxiliary condensing circuit absorbs the heat in the main circuit, it replenishes the gaseous refrigerant for the compressor, which can further increase the ability of the refrigerant to transfer heat.

Description

technical field [0001] The invention relates to the technical field of hot water heating equipment, in particular to a heat pump hot water system. Background technique [0002] The heat pump hot water system is usually used with a water tank, and the hot water of the set temperature is stored in the water tank, and then supplied to users for different purposes (bathing, heating, etc.). [0003] Since the hot water in the water tank is required to be maintained at a certain temperature, if the hot water is not used in time, the water temperature in the water tank will drop. When the water temperature is lower than the required temperature, the heat pump hot water system needs to operate in the "keep warm mode". That is to say, the water in the water tank is pumped again into the heat pump system for heating to produce high-temperature hot water that meets the requirements. [0004] Because the inlet water temperature in the heat preservation mode is usually very high (genera...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B30/02F25B41/20F25B43/00F25B49/02
CPCF25B30/02F25B43/00F25B49/02F25B2500/28F25B41/40F25B41/20
Inventor 周敏邓玉平夏兴祥赵东方
Owner QINGDAO HISENSE HITACHI AIR CONDITIONING SYST