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Refrigerant supercooling structure for air-conditioner and central air-conditioner

A refrigerant and supercooling technology, applied in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problems of increased device volume, poor system performance, and high cost, and achieve good supercooling effect, reasonable device structure, and low cost Effect

Inactive Publication Date: 2015-12-30
QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] These two methods have their own defects: using the bottom heat exchange tube of the condenser for subcooling will lead to a decrease in the actual heat exchange area and poor system performance; using a dedicated subcooler for subcooling will cost too much and the device will increase in size

Method used

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  • Refrigerant supercooling structure for air-conditioner and central air-conditioner

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Experimental program
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Effect test

Embodiment 1

[0025] This preferred embodiment provides a refrigerant supercooling structure for an air conditioner. Such as figure 1 As shown, the subcooling structure includes a condenser 1 , a gas-liquid separator 2 , an indoor unit 3 and a compressor 4 , wherein the gas-liquid separator 2 is connected to the compressor 4 .

[0026] Specifically, one end of the pipeline 11 is connected to the outlet of the condenser 1 , and the other end is connected to the inlet of the indoor unit 3 , and the pipeline 11 at least partially passes through the interior of the gas-liquid separator 2 . An electronic expansion valve 5 is arranged on the pipeline 11 between the outlet end of the condenser 1 and the gas-liquid separator 2 .

[0027] The evaporator is connected to the gas-liquid separator 2 through the S pipe of the four-way valve, and the gas-liquid mixed state refrigerant discharged from the evaporator is separated through the gas-liquid separator 2; the separated gaseous refrigerant will be...

Embodiment 2

[0033] This preferred embodiment provides a refrigerant subcooling structure for air conditioners, the structure of which is basically the same as that of the first preferred embodiment. In the subcooling structure, one end of the pipeline is connected to the outlet end of the condenser, and the other end is connected to the inlet end of the indoor unit, and the pipeline at least partially passes through the interior of the gas-liquid separator. The gas-liquid separator is used to separate the refrigerant in the gas-liquid mixed state discharged from the evaporator, and send the separated gas refrigerant to the compressor; the gas refrigerant is condensed by the condenser to form a refrigerant liquid with a lower temperature, and the refrigerant liquid enters the gas through the pipeline. The heat exchange is carried out in the liquid separator, and the temperature of the refrigerant liquid is further lowered and then enters the inlet port of the indoor unit.

[0034] The diff...

Embodiment 3

[0037] This preferred embodiment provides a central air conditioner. The central air conditioner includes the refrigerant subcooling structure for air conditioners as described in the preferred embodiment 1 or 2. The evaporator is connected to the inlet pipe of the gas-liquid separator through the S pipe of the four-way valve, and the outlet pipe of the gas-liquid separator is connected to the compressor; the C pipe of the four-way valve is connected to the inlet port of the condenser.

[0038] After the subcooling treatment in the gas-liquid separator, the temperature of the refrigerant liquid is lower. After a long pipeline, what enters the indoor unit is a real low-temperature and high-pressure refrigerant liquid, so the central air conditioner has better cooling and heating effects, low energy consumption, low operating costs, and can cover a larger space.

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Abstract

The invention discloses a refrigerant supercooling structure for an air-conditioner and a central air-conditioner and belongs to the field of air-conditioners and accessories thereof. The refrigerant supercooling structure and the central air-conditioner are designed to solve the problems of an existing supercooling method that cost is high and effect is poor. The refrigerant supercooling structure comprises a condenser, a gas-liquid separator, an indoor unit and a compressor, wherein the gas-liquid separator is connected with the compressor, and at least part of a pipeline enabling the condenser to be communicated with the indoor unit penetrates through the gas-liquid separator. The central air-conditioner comprises the refrigerant supercooling structure. The refrigerant supercooling structure and the central air-conditioner are reasonable in structure, low in cost, good in refrigerating and heating effects, and low in energy consumption.

Description

technical field [0001] The invention relates to an air-conditioning refrigerant supercooling structure and a central air conditioner provided with the air-conditioning refrigerant supercooling structure. Background technique [0002] An air conditioner is a home appliance that uses a refrigerant to regulate the temperature of the air. The high-temperature and high-pressure gaseous refrigerant passes through the condenser and becomes a low-temperature and high-pressure liquid substance, and then enters the indoor unit. [0003] Air conditioners, especially central air conditioners, have long connecting pipes. In order to achieve a better temperature adjustment effect, it is necessary to subcool the refrigerant cooled by the condenser to reduce pressure loss. Existing methods for supercooling the refrigerant include: 1. Supercooling by using the bottommost heat exchange tube of the condenser; 2. Supercooling by using a dedicated supercooler. [0004] These two methods have ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B41/00
Inventor 王海胜毛守博卢大海
Owner QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD
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