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Air-conditioning heat exchanger using mixed refrigerant and air conditioner

A technology of mixing refrigerants and heat exchangers, applied in refrigerators, refrigeration components, household heating and other directions, can solve the problem of high requirements for diversion, and achieve the effect of improving heat exchange efficiency, improving heat exchanger efficiency and uniform diversion.

Active Publication Date: 2012-07-04
HAIER GRP CORP +1
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

When non-azeotropic mixed refrigerants are used in air conditioners, there is a phenomenon of temperature glide, which requires high split flow. However, the existing shunt tubes have an inner diameter of 5-6mm, which is not suitable for non-azeotropic mixed refrigerants. The design of the device and its flow path puts forward new requirements

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  • Air-conditioning heat exchanger using mixed refrigerant and air conditioner
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  • Air-conditioning heat exchanger using mixed refrigerant and air conditioner

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] see Figure 1-Figure 2 , an embodiment of an air-conditioning heat exchanger using a mixed refrigerant in the present invention, including a finned tube heat exchanger 2, a header 1, at least two branch pipes 3, and connections between the header 1 and each branch pipe 3 A flow divider 4, the manifold 1 is connected to the inlet end of the flow divider 4, and the flow diversion outlets of the flow divider 4 are respectively connected to one end of each of the flow divider pipes 3, and the other ends of the flow divider pipes 3 are respectively It is connected with the pipeline on the finned tube heat exchanger 2, and the said distribution tubes 3 are placed vertically with the same length and inner diameter, and the size of the inner diameter of each distribution tube is 2.0-3.5mm.

[0026] The above-mentioned finned tube heat exchanger 2 adopts 7mm internally ...

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Abstract

The invention provides an air-conditioning heat exchanger using a mixed refrigerant and an air conditioner. The air-conditioning heat exchanger comprises a finned tube exchanger, a collecting pipe, at least two paths of shunting pipes, and a shunt for connecting the collecting pipe with each shunting pipe, wherein the collecting pipe is connected with an inlet end of the shunt; a shunting outlet of the shunt is connected with one end of the each shunting pipe respectively; the other end of the each shunting pipe is connected with a pipeline on the finned tube exchanger; and the air-conditioning heat exchanger is characterized in that: each shunting pipe is vertically arranged and has the same inner diameter of 2.0 to 3.5mm. The mixed refrigerant is a mixture of an HFC-32 (high-frequency current) refrigerant and an HFO-1234ze (high frequency oscillator) or HFO-1234yf refrigerant, and the HFC-32 refrigerant accounts for at least 50 percent of total weight of the mixed refrigerant. The problem of temperature glide of the mixed refrigerant brought by non-azeotropy can be solved. In addition, the heat exchange efficiency and heating capacity of the air-conditioning heat exchanger can be improved.

Description

technical field [0001] The invention belongs to the technical field of air conditioner manufacture, and mainly relates to the improvement of the flow path system of the heat exchanger, in particular to an air conditioner heat exchanger and an air conditioner using mixed refrigerant. Background technique [0002] The refrigerants used in traditional air conditioners, such as R22 and R410A, have high global warming potential (GWP) values ​​and are harmful to the environment. Freon refrigerants will destroy the ozone layer of the atmosphere and produce a greenhouse effect due to a large amount of emissions. However, hydrogen refrigerants with low global warming potential (GWP) such as R410A are flammable, have many safety restrictions, and the cost of safety protection measures and protection devices is high. It has been gradually replaced by environmentally friendly refrigerants, such as non-azeotropic mixed refrigerants. When non-azeotropic mixed refrigerants are used in ai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B39/00F24F1/14C09K5/04
CPCY02P20/10
Inventor 王友宁张明杰于世鹏丁爽
Owner HAIER GRP CORP
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