Air conditioner refrigerant leakage detection method and air conditioner

A refrigerant leakage and detection method technology, which is applied in heating methods, space heating and ventilation, lighting and heating equipment, etc., can solve the problems of inability to detect the degree of refrigerant leakage, low detection accuracy of air conditioners, and slow response, so as to avoid continuous Leakage, responsiveness, and accuracy-enhancing effects

Active Publication Date: 2021-06-04
AUX AIR CONDITIONING LTD BY SHARE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of this, the present invention aims to propose an air conditioner refrigerant leakage detection method and an air conditioner to solve the technical problems of the existing air conditioner refrigerant leakage detection method and air conditioner with low detection accuracy, slow response, and inability to detect the degree of refrigerant leakage

Method used

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  • Air conditioner refrigerant leakage detection method and air conditioner
  • Air conditioner refrigerant leakage detection method and air conditioner
  • Air conditioner refrigerant leakage detection method and air conditioner

Examples

Experimental program
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Effect test

Embodiment 1

[0039] Such as figure 1 As shown, a method for detecting air-conditioning refrigerant leakage, including the steps

[0040] S1: Obtain the refrigerant mass flow threshold curve and measure the actual refrigerant mass flow Q in the refrigerant loop 实 , according to Q 实 Carry out a judgment on the leakage of the air-conditioning refrigerant with the refrigerant mass flow threshold curve. If the air-conditioning has a refrigerant leakage, perform step S4; if the air-conditioning refrigerant leakage is pending, perform step S2;

[0041] S2: Obtain the standard suction specific volume U of the compressor 标吸 and standard exhaust specific volume U 标排 , to measure the actual suction specific volume U of the compressor 实吸 and the actual exhaust specific volume U 实排 , according to U 实吸 / U 实排 with U 标吸 / U 标排 relationship to determine whether the compressor is faulty;

[0042] S3: If the compressor is running normally, make a second judgment on the leakage of the air-conditionin...

Embodiment 2

[0047] Such as figure 2 As shown, a method for detecting air-conditioning refrigerant leakage, including the steps

[0048] S1: Obtain the refrigerant mass flow threshold curve and measure the actual refrigerant mass flow Q in the refrigerant loop 实 , according to Q 实 Carry out a judgment on the leakage of the air conditioner refrigerant with the refrigerant mass flow threshold curve. If the air conditioner has refrigerant leakage, perform step S4. If the condition of the air conditioner refrigerant leakage is pending, perform step S2;

[0049] S2: Obtain the standard suction specific volume U of the compressor 标吸 and standard exhaust specific volume U 标排 , to measure the actual suction specific volume U of the compressor 实吸 and the actual exhaust specific volume U 实排 , according to U 实吸 / U 实排 with U 标吸 / U 标排 relationship to determine whether the compressor is faulty;

[0050] S3: If the compressor is running normally, make a second judgment on the leakage of the ai...

Embodiment 3

[0070] In order to further realize the high-precision and rapid detection of air-conditioning refrigerant leakage in the air-conditioning refrigerant leakage detection method described in Example 2, on the basis of Embodiment 2, the air-conditioning refrigerant leakage detection method is further optimized, specifically:

[0071] Such as image 3 As shown, the step S15 includes the steps of:

[0072] S151: Obtain the first threshold Q of the refrigerant mass flow on the refrigerant mass flow threshold curves A, B, and C according to the cumulative operating time of the air conditioner A , the second threshold Q B and a third threshold Q C ;

[0073] S152: Judging the actual refrigerant mass flow Q in the refrigerant loop 实 Is it greater than Q B , if yes, it is determined that no refrigerant leakage occurs in the air conditioner; if not, step S153 is executed;

[0074] S153: Judge Q 实 Is it greater than Q C , if yes, it is determined that the air conditioner refrigeran...

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Abstract

The present invention provides an air conditioner refrigerant leakage detection method and an air conditioner, including step S1: obtaining the refrigerant mass flow threshold curve, and measuring the actual refrigerant mass flow Q in the refrigerant loop 实 , according to Q 实 and the refrigerant mass flow threshold curve to judge the leakage of the air conditioner refrigerant once. If the refrigerant leakage occurs, execute step S4; if the refrigerant leakage is pending, execute step S2; 标吸 and standard exhaust specific volume U 标排 , to measure the actual suction specific volume U of the compressor 实吸 and the actual exhaust specific volume U 实排 , according to U 实吸 / U 实排 with U 标吸 / U 标排 relationship, to determine whether the compressor is faulty; S3: if the compressor is operating normally, conduct a second judgment on the leakage of the air-conditioning refrigerant; S4: if the air-conditioning has refrigerant leakage, activate the alarm unit. The air conditioner refrigerant leakage detection method and the air conditioner of the present invention have high detection accuracy and rapid response, and can judge the degree of refrigerant leakage.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to an air conditioner refrigerant leakage detection method and an air conditioner. Background technique [0002] In recent years, with the rise of global temperature and the substantial improvement of people's living standards, air-conditioning equipment has gradually become one of the necessary electrical appliances in life. With the increasingly fierce market competition, the working efficiency and safety of air-conditioning are becoming more and more Become one of the main factors affecting the core competitiveness of products. [0003] In actual use, air-conditioning system failures caused by refrigerant leakage occur frequently, which seriously reduces product competitiveness. On the one hand, the leakage of refrigerant will reduce the working efficiency of the air conditioner. At the same time, the leakage of refrigerant will cause damage to the ozone layer and cause...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/64F24F11/86F24F11/38F24F11/36F24F11/89
CPCF24F11/36F24F11/38F24F11/64F24F11/86F24F11/89
Inventor 白韡许真鑫
Owner AUX AIR CONDITIONING LTD BY SHARE LTD
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