Low-temperature air conditioning system and air conditioner

A low-temperature air-conditioning, four-way valve technology, applied in refrigeration and liquefaction, lighting and heating equipment, compressors with reversible cycle, etc., can solve the problems of refrigerant reduction, customer complaints, low evaporation temperature, etc. Enhanced effect, increased effect of component content

Active Publication Date: 2017-02-15
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the low temperature state, due to factors such as relatively low evaporation temperature and easy frosting of the evaporator, the heat absorbed by the refrigerant from the air is greatly reduced, and the heating effect becomes poor, which affects the user's use effect and often causes customer complaints.

Method used

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  • Low-temperature air conditioning system and air conditioner
  • Low-temperature air conditioning system and air conditioner

Examples

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Effect test

Embodiment 1

[0056] Such as figure 1 As shown, when it is cold in winter, the user turns on the air conditioner and adjusts the air conditioner to the heating mode. At this time, the first valve 124 and the second valve 126 are closed, the third valve 128 is opened, and the first valve port a and the second valve port a port b is connected, the fourth valve port d is connected with the third valve port c, the mixed working medium is compressed by the compressor 102, enters the four-way valve 104 through the first valve port a, and then flows out from the second valve port b to reach The indoor heat exchanger 106 condenses to release heat, in which most of the high boiling point components are condensed into liquid, and the low boiling point working fluid remains in gaseous state. After passing through the first separator 122, the gas and liquid are automatically separated under the action of gravity, and the separated high-boiling point liquid refrigerant is throttled by the second throttl...

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Abstract

The invention provides a low-temperature air conditioning system and an air conditioner. The low-temperature air conditioning system comprises a compressor, a four-way valve, an indoor heat exchanger, an outdoor heat exchanger and a throttling device; a first valve port of the four-way valve is connected with the compressor; a second valve port of the four-way valve is connected with the indoor heat exchanger; and a third valve port of the four-way valve is connected with the outdoor heat exchanger. The low-temperature air conditioning system further comprises an auxiliary heat exchanger connected with the outdoor heat exchanger, a first separator, a first valve and a second valve, wherein a first port of the first separator is connected with the auxiliary heat exchanger; a second port of the first separator is connected with the indoor heat exchanger; a third port of the first separator is connected with the outdoor heat exchanger, is connected with the second port in parallel, and is communicated with the indoor heat exchanger; the first valve is arranged on a pipeline for communicating the second port of the outdoor heat exchanger with the third valve port of the four-way valve; and the second valve is arranged on a pipeline for communicating the third port with the third port of the indoor heat exchanger. The low-temperature air conditioning system can control the refrigerant circulating quantity to enhance the low-temperature heating effect thereof.

Description

technical field [0001] The invention relates to the technical field of household appliances, in particular to a low-temperature air-conditioning system and an air-conditioner. Background technique [0002] With the improvement of people's living standards and the enhancement of energy-saving awareness, air-conditioners have entered the vast number of ordinary families and have been more and more widely used due to their energy-saving, flexible control, and easy installation and maintenance. However, in the low temperature state, due to factors such as low evaporation temperature and easy frosting of the evaporator, the heat absorbed by the refrigerant from the air is greatly reduced, and the heating effect is deteriorated, which affects the user's use effect and often causes customer complaints. [0003] Therefore, how to design a low-temperature air-conditioning system that can control the circulation of refrigerant, and at the same time, increase the content of components ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B13/00F25B43/00F25B41/00F25B41/20F25B41/40
CPCF25B13/00F25B43/003F25B41/40
Inventor 王新利许永锋熊美兵冯明坤李根赵浩伟
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD
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