A low-temperature heat pump air-conditioning heat exchange system with anti-icing function

A heat exchange system and low-temperature heat technology, applied in air conditioning systems, heating methods, household appliances, etc., can solve the problems of no anti-icing function, reduced heat exchange efficiency, and no finned heat exchanger, etc., to achieve relief The effect of freezing rate, improving heat transfer efficiency, and inhibiting the generation of frost

Active Publication Date: 2016-02-10
GUANGDONG ASEAIR HEAT PUMP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, the existing low-temperature heat pump air-conditioning heat exchange systems generally do not have an anti-icing function, that is, there is no anti-icing structure for preventing the bottom of the finned heat exchanger from freezing or effectively slowing down its freezing rate. It may reduce its heat exchange efficiency. Especially in some harsh environments, such as the north where the temperature is low, the existing low-temperature heat pump air-conditioning heat exchange system will be damaged due to the bottom structure of the finned heat exchanger. Ice seriously affects its normal use

Method used

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  • A low-temperature heat pump air-conditioning heat exchange system with anti-icing function

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Embodiment Construction

[0008] The present invention will be further described below in conjunction with specific examples.

[0009] See attached figure 1 As shown, the low-temperature heat pump air-conditioning heat exchange system described in this embodiment includes a compressor 1, a four-way valve 2, a plate heat exchanger 3, a gas-liquid separator 4, a finned heat exchanger 5, a first The throttling device 6, the second throttling device 7, the first one-way valve 8, the second one-way valve 9, the liquid storage tank 10, the filter 11 and the anti-expansion correspondingly arranged at the bottom of the finned heat exchanger 5 Ice pipe 14, wherein the two nozzles of the four-way valve 2 described in this embodiment are respectively connected to the air outlet of the compressor 1 and the air inlet of the plate heat exchanger 3, and the other two nozzles are connected to the gas-liquid separator respectively. The air inlet of the device 4 and the air outlet of the finned heat exchanger 5; Two b...

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Abstract

The invention provides a low-temperature heat pump air conditioner heat exchanging system with an anti-icing function. The low-temperature heat pump air conditioner heat exchanging system comprises a compressor, a four-way valve, a plate-type heat exchanger, a gas-liquid separator, a finned type heat exchanger, a first throttling gear, a second throttling gear, a first check valve, a second check valve, a liquid storage tank, a filter and an anti-ice expansion pipe, wherein two pipe orifices of the four-way valve are respectively connected with the compressor and the plate-type heat exchanger, and another two pipe orifices of the four-way valve are respectively connected with the gas-liquid separator and the finned type heat exchanger; the gas-liquid separator is connected with the compressor, a heat pump branch and a defrosting branch are connected between the plate-type heat exchanger and the finned type heat exchanger; the heat pump branch comprises the first check valve, the liquid storage tank, the filter and the first throttling gear which are connected in sequence; the defrosting branch comprises the second throttling gear and the second check valve; one end of the anti-ice expansion pipe is connected with the first throttling gear, and the other end of the anti-ice expansion pipe is respectively connected with the second throttling device and the filter. The low-temperature heat pump air conditioner heat exchanging system provided by the invention can effectively inhibit generation of rime frosts at the bottom of the finned type heat exchanger, and slow down the freezing rate of the finned type heat exchanger.

Description

technical field [0001] The invention relates to the technical field of low temperature heat pump air conditioners, in particular to a low temperature heat pump air conditioner heat exchange system with anti-freezing function. Background technique [0002] At present, the existing low-temperature heat pump air-conditioning heat exchange systems generally do not have an anti-icing function, that is, there is no anti-icing structure for preventing the bottom of the finned heat exchanger from freezing or effectively slowing down its freezing rate. It may reduce its heat exchange efficiency. Especially in some harsh environments, such as the north where the temperature is low, the existing low-temperature heat pump air-conditioning heat exchange system will be damaged due to the bottom structure of the finned heat exchanger. Ice seriously affects its normal use. Therefore, with the continuous development of social science and technology, how to improve the existing low-temperatu...

Claims

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Application Information

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IPC IPC(8): F25B41/04F25B41/06F24F5/00
Inventor 黄伟毅
Owner GUANGDONG ASEAIR HEAT PUMP
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