Continuously heating and defrosting heat pump type air conditioner

A heating defrosting, heat pump technology, applied in the direction of compressors, refrigerators, refrigeration components with reversible cycles, etc., can solve the problem of unsatisfactory working effect of fast defrosting air conditioners, and achieve clean defrosting and maintenance. The effect of downtime

Inactive Publication Date: 2009-07-08
CHONGQING MIDEA GENERAL REFRIGERATING EQUIP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The working effect of this fast defrosting air conditioner is still not ideal

Method used

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  • Continuously heating and defrosting heat pump type air conditioner
  • Continuously heating and defrosting heat pump type air conditioner

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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 , a heat pump air conditioner with continuous heating and defrosting, including a compressor 1, a four-way valve 2, an outdoor heat exchanger 3, an indoor heat exchanger 6, an electric refrigerant heater 7 and a gas-liquid separator 8, the compressor The high-pressure outlet of 1 communicates with the first port of four-way valve 2, the second port of four-way valve 2 communicates with one end of outdoor heat exchanger 3, and the other end of outdoor heat exchanger 3 and one end of indoor heat exchanger 6 The outdoor electronic expansion valve 4 and the first cut-off valve 14 are arranged in sequence in between, the other end of the indoor heat exchanger 6 communicates with the fourth port of the four-way valve 2 through the second stop valve 15, and the third port of the four-way valve 2 communicates with the fourth port of the four...

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PUM

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Abstract

The invention provides an uninterrupted heating-defrosting heat-pump type air conditioner, which comprises a compressor, a four-way valve, an outdoor heat exchanger, an indoor heat exchanger, an electric refrigerant heater and a gas-liquid separator, wherein the four-way valve is communicated with one end of the outdoor heat exchanger; an outdoor electronic expansion valve is arranged between the other end of the outdoor heat exchanger and one end of the indoor heat exchanger; a first check valve, a capillary tube and a first electromagnetic valve, which are in sequential serial connection, form a first circuit branch; one end of the first circuit branch is communicated with a pipeline between the other end of the outdoor heat exchanger and the outdoor electronic expansion valve; the other end of the first circuit branch is communicated with the pipeline between the other end of the indoor heat exchanger and a fourth interface of the four-way valve; a second electromagnetic valve and a second check valve in serial connection form a second circuit branch; one end of the second circuit branch is communicated with the pipeline between the outdoor electronic expansion valve and one end of the indoor heat exchanger; and the other end of the second circuit branch is communicated with the pipeline between a third interface of the four-way valve and one end of the gas-liquid separator. The air conditioner has the characteristics of stable indoor heating effects and thorough defrosting.

Description

technical field [0001] The invention relates to a heat pump air conditioner, in particular to a heat pump air conditioner with continuous heating and defrosting. Background technique [0002] When the air conditioner performs low-temperature heating in winter, because its evaporation temperature is lower than zero, the surface of the heat exchanger of the outdoor unit will be frosted or frozen, which will affect the heating effect of the air conditioner. At present, it is generally adopted to switch to cooling operation to melt the frost layer or ice layer on the outdoor heat exchanger. However, this method will cause the indoor unit to be unable to provide heat during defrosting operation, which will inevitably affect the corresponding indoor temperature and cannot meet the requirements. The user's heating requirements in winter, and frequent start-up and shutdown and positive and negative flow of refrigerant will also have a greater impact on the system. In response to th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B47/02F25B13/00
Inventor 黄国强黄良伟赵广超楚立峰唐柱才
Owner CHONGQING MIDEA GENERAL REFRIGERATING EQUIP
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