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Detection method for refrigerant leakage and air conditioner with refrigerant

A refrigerant leakage and detection method technology, which is applied in the field of air conditioning, can solve problems such as refrigerant leakage and misjudgment of refrigerant leakage, and achieve the effects of avoiding waste, avoiding the complexity of procedures, and ensuring that the detection data is true and reliable

Active Publication Date: 2020-03-03
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 a method for detecting refrigerant leakage and an air conditioner having the same, so as to solve the problem that the air-conditioning system in the prior art is prone to misjudgment of refrigerant leakage, so as to improve the accuracy of the air conditioner in judging refrigerant leakage. accuracy

Method used

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  • Detection method for refrigerant leakage and air conditioner with refrigerant
  • Detection method for refrigerant leakage and air conditioner with refrigerant
  • Detection method for refrigerant leakage and air conditioner with refrigerant

Examples

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Effect test

Embodiment 1

[0087] Example 1, such as figure 1 As shown, the present invention discloses a detection method for refrigerant leakage, and the detection method includes the following steps:

[0088] ST1: Start the air conditioner, check for refrigerant leakage, and judge whether the compressor can start normally;

[0089] ST2: Determine whether the compressor can operate normally;

[0090] ST3: Judging whether the preset trigger conditions for detecting refrigerant leakage are met;

[0091] ST4: According to the trigger condition of refrigerant leakage, judge whether the refrigerant leaks;

[0092] ST5: Execute refrigerant leakage protection operations.

[0093] In the above method, in order to ensure that the compressor can be started safely, a preliminary inspection of refrigerant leakage is performed, and step S2 is performed to confirm whether the compressor is normal or not, so as to ensure the effectiveness of refrigerant leakage detection; only when the compressor is working norma...

Embodiment 2

[0107] Such as figure 2 As shown, in ST1, the following detection steps are included:

[0108] ST11, start the air conditioner;

[0109] ST12, detecting the concentration of M additive components outside the refrigerant circuit, M≥2, and M is an integer;

[0110] ST13, judging whether the concentrations of the M additive components all satisfy the corresponding C i >C 预 , if not, enter ST14, if yes, enter ST15;

[0111] ST14, the compressor starts and enters ST2;

[0112] ST15, the refrigerant leaks, the air conditioner does not work, and a three-level leak fault prompt message is issued.

[0113] Other detection methods are the same as in Example 1. By detecting the concentration of at least two additive components, the interference caused by the components in the room is avoided. Only at least two of them satisfy the corresponding preset information at the same time. C 预 In order to preset in the storage unit the maximum threshold value that can be detected by the ext...

Embodiment 3

[0115] Such as image 3 As shown, in ST2, the following detection steps are included:

[0116] ST21, compressor running time t 1 ;

[0117] ST22, obtain detection information, including the actual operating frequency F of the compressor at this time r , measure and obtain the actual suction specific volume U of the compressor 实吸 and the actual exhaust specific volume U 实排 , get air conditioner operating mode Q, current outdoor temperature T W1 , the current indoor temperature T N1 , Indoor unit coil temperature T P1 and the concentration C of at least one additive i1 ;

[0118] ST23, look up the table to obtain the operating mode Q and the current outdoor temperature T W1 Under the compressor standard suction specific volume U 标吸 and standard exhaust specific volume U 标排 ;

[0119] ST24, Judgment|U 标吸 –U 实吸 |with|U 标排 –U 实排 Whether the ratio of | is less than m, if yes, enter ST26, if not, enter ST25;

[0120] ST25, the compressor is normal, enter ST3;

[012...

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Abstract

The invention provides a detection method for refrigerant leakage and an air conditioner with refrigerant. The detection method comprises the following steps that ST1, the air conditioner is started,initial detection is carried out on the refrigerant leakage, and whether a compressor can be started normally or not is judged; ST2, whether the compressor can run normally or not is judged; ST3, whether a preset triggering condition of refrigerant leakage detecting is met or not is judged; and ST4, whether the refrigerant leaks or not is judged according to the triggering condition of the refrigerant leakage; and ST5, refrigerant leakage protection operation is carried out. According to the detection method for the refrigerant leakage, whether the compressor can be started or not is detectedand judged, whether the compressor is normal or not is detected and judged, the waste of resources and the complexity of procedures are avoided, it is guaranteed that detection data when the refrigerant leakage is detected subsequently are true and reliable, and the probability of misjudgment can be greatly reduced through adopting multi-factor trigger, and then the refrigerant leakage detection procedures based on the triggerring condition.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a method for detecting refrigerant leakage and an air conditioner with the same. Background technique [0002] With the progress of today's society and the development of economy, air conditioners, as a relatively important electrical equipment in people's daily life, have entered thousands of households. [0003] Existing air-conditioning and refrigeration systems include a compressor, an outdoor heat exchanger, a throttling device, an indoor heat exchanger, and pre-charged with a certain amount of refrigerant. In the case of no leakage of refrigerant, the air conditioning system can operate normally. However, during the installation process and long-term use of the air conditioner, the pipeline may be damaged due to poor sealing, bending, long-term corrosion or other external force majeure, resulting in leakage of the air conditioner refrigerant. Fundamentally, the l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/36F24F11/38F24F11/64F24F11/52
CPCF24F11/36F24F11/38F24F11/52F24F11/64
Inventor 白韡许真鑫
Owner AUX AIR CONDITIONING LTD BY SHARE LTD
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