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Heat pump air conditioner

A heat pump air conditioner and cavity technology, which is applied to heat pumps, lighting and heating equipment, refrigeration components, etc., can solve the problems of high production cost and complex structure, and achieve the effects of low production cost, simple and reasonable structure, and good heating effect.

Inactive Publication Date: 2009-04-29
GUANGDONG MIDEA ELECTRIC APPLIANCES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this ultra-low temperature heat pump air-conditioning system can work in a low temperature environment, its structure is complicated and its production cost is relatively high.

Method used

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  • Heat pump air conditioner
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Embodiment Construction

[0012] The present invention will be further described below with reference to the drawings and embodiments.

[0013] See Figure 1-Figure 2 , The heat pump air conditioner includes a compressor 1, an indoor heat exchanger 2, a gas-liquid separator 4, an outdoor heat exchanger 6, a throttling device 5 and an ejector 3. The ejector has an inlet a, a suction port b and One exit c. The inlet a and the outlet c are arranged on the same straight line, and the suction port b is arranged below the inlet a and the outlet c.

[0014] The inlet a of the ejector 3 communicates with one end of the indoor heat exchanger 2, the other end of the indoor heat exchanger 2 communicates with the high pressure outlet of the compressor 1, and the low pressure inlet of the compressor 1 communicates with the upper cavity of the gas-liquid separator 4 , The outlet c of the ejector 3 communicates with the upper cavity of the gas-liquid separator 4, the suction port b of the ejector 3 communicates with one e...

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Abstract

The invention relates to a heat pump air conditioner, which comprises a compressor, an indoor heat exchanger, a gas-liquid separator, an outdoor heat exchanger, a throttling device and an injector. An inlet of the injector is communicated with one end of the indoor heat exchanger; the other end of the indoor heat exchanger is communicated with a high-pressure outlet of the compressor; a low-pressure inlet of the compressor is communicated with an upper cavity of the gas-liquid separator; an outlet of the injector is communicated with the upper cavity of the gas-liquid separator; an air suction hole of the injector is communicated with one end of the outdoor heat exchanger; and the other end of the outdoor heat exchanger is communicated with the bottom of the gas-liquid separator. When the heat pump air conditioner works at an outdoor low-temperature environment, the heat pump air conditioner uses the injector to raise pressure of low-pressure cooling medium gas entering from a low-pressure inlet of the compressor, so as to raise gas suction pressure of the compressor, and enable the compressor to be in a normal pressure range, thereby ensuring that the heat pump air conditioner can still work normally at the outdoor low-temperature environment and has favorable heating effect.

Description

Technical field [0001] The invention relates to a heat pump air conditioner, in particular to a heat pump air conditioner suitable for outdoor low-temperature environments. Background technique [0002] When the common air source heat pump air conditioner is used for heating in winter in cold regions, as the outdoor environment temperature decreases, the specific volume of refrigerant suction increases, so that the suction volume of the heat pump air conditioner drops rapidly, and its heating capacity is correspondingly reduced. The proportion drops. Moreover, as the outdoor environment temperature decreases, the suction pressure also decreases, which causes the compressor compression ratio to increase, the pressure deviates from the optimal value, the compression process also deviates from the normal compression process, and causes the unit discharge temperature to rise sharply. . As the compression ratio of the compressor increases, the air delivery coefficient, air delivery an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B30/02
Inventor 林于拉王坚
Owner GUANGDONG MIDEA ELECTRIC APPLIANCES CO LTD
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