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Heat pump

A technology of heat pump devices and indoor heat exchangers, applied in the field of heat pump devices, can solve problems such as complex structures, achieve the effects of improving the energy efficiency ratio of the whole machine, increasing the refrigerant circulation volume and low-pressure side pressure, and reducing the probability of frosting

Active Publication Date: 2011-08-17
MIDEA GRP CO LTD
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Problems solved by technology

Its structure is more complex, it is necessary to further improve and perfect

Method used

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0016] see figure 1 , the heat pump device includes a compressor 1, a four-way valve 2, an indoor heat exchanger 7, an outdoor heat exchanger 8, and a liquid accumulator, wherein the first interface a of the four-way valve communicates with the high-pressure outlet of the compressor 1, The second port b communicates with one end of the indoor heat exchanger 7, the third port c communicates with the low-pressure inlet of the compressor 1, the fourth port d communicates with the outdoor heat exchanger 8, and the other end of the indoor heat exchanger 7 is throttled The element communicates with the other end of the outdoor heat exchanger. The outdoor heat exchanger 8 includes an evaporator and a condenser. The evaporator and the condenser are placed close together for direct heat exchange, and use the same refrigerant power source and heat exchange fluid...

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Abstract

A heat pump device comprises a compressor, a four-way valve, an indoor heat exchanger and an outdoor heat exchanger, wherein, a first connector of the four-way valve is communicated with a high-pressure outlet of the compressor; a second connector thereof is communicated with one end of the indoor exchanger; a third connector thereof is communicated with a low-pressure inlet of the compressor; a fourth connector thereof is communicated with the outdoor heat exchanger; and the other end of the indoor heat exchanger is communicated with the other end of the outdoor heat exchanger by a throttling element. The heat pump device is characterized in that the outdoor heat exchanger comprises an evaporator and a condenser which are arranged next to each other for direct heat exchange and use the same refrigerant power source and heat exchange fluid power source. The invention has the advantages of simple and reasonable structure, high overall energy efficiency ratio, high reliability of the compressor, low possibility of liquid impact of the compressor and long service life. In addition, the device can reduce frosting probability and improve frosting condition during the heating operation of the outdoor heat exchanger, and greatly improve the refrigerant circulating load and pressure at lower pressure side during the low-temperature heating.

Description

technical field [0001] The invention relates to a heat pump device. Background technique [0002] The outdoor heat exchanger of a traditional heat pump is either used as a condenser or as an evaporator. When it is heating, the outdoor heat exchanger is prone to frosting, and the frosting is serious, and the compressor is also vulnerable to liquid hammer during operation, which affects its actual working effect. Chinese patent document number CN101280979 discloses an air-conditioning heat pump device, including a compressor, a heat source side heat exchanger, a user side heat exchanger, a second heat exchanger, a first throttling mechanism, a second throttling mechanism, a first four through valve, the second four-way valve, the first flow direction control valve, the second flow direction control valve, the ninth flow direction control valve; it also includes a flash evaporator, the third throttling mechanism and the third flow direction control valve; during operation, use...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B13/00F25B30/02
Inventor 田明力邓建云占磊余彬王小明
Owner MIDEA GRP CO LTD
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