Unlock instant, AI-driven research and patent intelligence for your innovation.

Air conditioner refrigerant leakage detection method and air conditioner

A leak detection and air conditioning technology, applied in the control input, heating mode, space heating and ventilation related to air characteristics, etc., can solve the problems of air conditioning refrigerant leakage, misjudgment of refrigerant leakage, etc., so as to reduce the risk of damage and avoid damage. , the effect of avoiding misjudgment situations

Active Publication Date: 2021-05-18
AUX AIR CONDITIONING LTD BY SHARE LTD
View PDF14 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention aims to propose an air conditioner refrigerant leakage detection method and an air conditioner to solve the problem that the air conditioner system is prone to misjudgment of refrigerant leakage in the prior art, so as to improve the accuracy of the air conditioner in judging refrigerant leakage

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 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
Comparison scheme
Effect test

Embodiment 1

[0091] as attached figure 1 As shown, this embodiment provides a method for detecting refrigerant leakage of an air conditioner, the method is executed by an air conditioner, and the method includes the following steps:

[0092] S1, start the air conditioner;

[0093] S2. The air conditioner controls the compressor to run at frequency f1;

[0094] Wherein, the air conditioner stores multiple compressor operating frequencies in the air conditioner data storage device; the air conditioner can control the compressor to operate at any operating frequency; preferably, the frequency f1 is a higher compressor operating frequency, which is beneficial to the indoor environment Reach the state required by the user as soon as possible.

[0095] S3. Obtain exhaust superheat Tp after the air conditioner operates for a rated time;

[0096] Among them, after the air conditioner runs for a rated time, that is, after the air conditioner runs stably, the data is acquired to ensure the stabil...

Embodiment 2

[0109] as attached figure 2As shown, in order to further illustrate the detection process of exhaust gas superheat and condenser subcooling in the present invention, this embodiment further describes step S3 and step S5 respectively on the basis of embodiment 1.

[0110] Specifically, step S3 includes:

[0111] S301. After the air conditioner has been running for t3, obtain the pressure P11 of the discharge pipe of the compressor and the temperature T11 of the discharge pipe of the compressor;

[0112] Among them, when the air conditioner is in the high-frequency operation stage, after running for t3, that is, after the air conditioner runs stably, a pressure sensor and a temperature sensor are installed at the compressor exhaust port to obtain the pressure P11 of the compressor discharge pipe and the pressure P11 of the compressor discharge pipe. Temperature T11; It should be noted that the compressor discharge pipe pressure P11 refers to the actual pressure value of the re...

Embodiment 3

[0131] as attached image 3 As shown, in order to further improve the accuracy of the air conditioner in judging refrigerant leakage, this embodiment makes a further supplementary description of the method in embodiment 1 on the basis of embodiment 1.

[0132] Specifically, for the method in embodiment 1, this embodiment supplements the technical solution of step S1; wherein, step S1 includes:

[0133] S101, start the air conditioner, obtain the preset mode, the outdoor temperature T21 before operation, and the indoor temperature T22 before operation;

[0134] Wherein, the air conditioner detects various temperature parameters respectively by setting several temperature sensors.

[0135] The preset mode includes the operation mode before the last shutdown of the air conditioner and the operation mode set by the user; specifically, if the user actively sets the operation mode when the air conditioner is turned on this time, the preset mode is the operation mode set by the user...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention provides an air conditioner refrigerant leakage detection method and an air conditioner, comprising: S1, starting the air conditioner; S2, controlling the compressor of the air conditioner to operate at a frequency f1; S3, obtaining the exhaust superheat Tp after the air conditioner operates for a rated time; S4, The air conditioner judges whether the exhaust superheat Tp is greater than the first threshold; if yes, proceed to step S5; if not, the air conditioner operates normally; S5, the air conditioner controls the compressor to run at frequency f2, and obtains the condenser supercooling degree T0; S6, the air conditioner It is judged whether the subcooling degree T0 of the condenser is less than the second threshold; if yes, refrigerant leakage occurs; otherwise, the air conditioner operates normally. The air conditioner refrigerant leakage detection method in the present invention improves the accuracy of the air conditioner in refrigerant leakage detection and reduces the occurrence of misjudgments.

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] 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. 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 leakage of refrigerant is reflected by the reduction of refrigerant flow. Insufficient amount of refrigerant will degrade the performance of the air conditioner, make the compressor run in a poor condition, and even damage the compressor in severe cases. [0003] Most of the current technologies use tempe...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/86F24F11/64F24F11/65F24F11/89F24F11/38F24F110/10F24F110/12
CPCF24F11/38F24F11/64F24F11/65F24F11/86F24F11/89F24F2110/10F24F2110/12
Inventor 白韡许真鑫
Owner AUX AIR CONDITIONING LTD BY SHARE LTD