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Heat pump system

A heat pump system and heat exchanger technology, applied in the field of heat pumps, can solve problems such as low energy efficiency, achieve the effects of reducing mixing loss, reducing return loss, and improving efficiency

Inactive Publication Date: 2019-03-01
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The invention provides a heat pump system, aiming at improving the problem of low energy efficiency of the existing heat pump system during heating

Method used

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  • Heat pump system

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Embodiment 1

[0029] Example 1, please refer to figure 1 As shown, this embodiment provides a heat pump system, including:

[0030] The first compressor 1 and the second compressor 2, both of the first compressor 1 and the second compressor 2 have an air inlet and an air outlet;

[0031] The four-way reversing valve 4 has a first port 401, a second port 402, a third port 403 and a fourth port 404, and the air inlet of the first compressor 1 communicates with the first port 401 of the four-way reversing valve 4 , both the exhaust port of the first compressor 1 and the exhaust port of the second compressor 2 communicate with the second port 402 of the four-way reversing valve 4;

[0032] The four-way reversing valve 4 used in this embodiment can use the existing four-way reversing valve 4 . The four-way reversing valve 4 has two states, and each state has two paths.

[0033] Wherein, the first state is: the first port 401 is connected to the third port 403 to form a path; the second port 4...

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Abstract

The invention provides a heat pump system. The heat pump system comprises a first compressor, a second compressor, a four-way reversing valve, a first heat exchanger and a second heat exchanger, wherein an air inlet of the first compressor communicates with a first port of the four-way reversing valve, and an exhaust port of the first compressor and the exhaust port of the second compressor communicate with the second port of the four-way reversing valve; the first end of the first heat exchanger communicates with a third port of the four-way reversing valve, and the second end of the first heat exchanger communicates with the air inlet of the second compressor; the first end of the second heat exchanger communicates with the fourth port of the four-way reversing valve, and the second endof the second heat exchanger communicates with an air inlet of the second compressor. According to the heat pump system, the gas supplementing and enthalpy increasing of the heat pump system are realized through the second compressor, and compared with a traditional heat pump system, mixing loss during gas supplementation can be reduced, the backflow loss and the flowing resistance loss of the airsupplement can be reduced, the effect of supplementing the gas and increasing the enthalpy is improved, and the problem that the energy efficiency is low when the heat pump system is heated is solved.

Description

technical field [0001] The present invention relates to the technical field of heat pumps, in particular to a heat pump system. Background technique [0002] Along with improving day by day of people's living standard, air conditioner becomes requisite household appliance in people's life gradually. Heat pump is a high-efficiency and energy-saving device that makes full use of low-grade heat energy, and is widely used in the field of air conditioning. When the heat pump air conditioner is used for heating in cold areas in winter, due to the low outdoor ambient temperature, the refrigerant suction specific volume is large, so that the suction volume of the unit is small and the heating capacity is reduced. As the air pressure decreases, the pressure ratio of the compressor increases, and the pressure ratio of the unit seriously deviates from the optimal value, resulting in a significant decrease in the energy efficiency level of the system during heating. Contents of the i...

Claims

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Application Information

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IPC IPC(8): F25B13/00F25B31/00F25B41/04F25B41/06F25B43/00F25B43/02F25B49/02F25B41/20F25B41/31
CPCF25B13/00F25B31/00F25B43/00F25B43/006F25B43/02F25B49/022F25B2400/07F25B2600/11F25B41/31F25B41/20
Inventor 雷佩玉赵桓
Owner GREE ELECTRIC APPLIANCES INC
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