Method for detecting refrigerant leakage of air conditioning system and air conditioning system

An air-conditioning system and refrigerant technology, applied in heating and ventilation control systems, heating and ventilation safety systems, and control inputs involving air characteristics, etc., can solve problems affecting unit parameters, affecting the accuracy of test results, and inaccurate test results, etc. , to achieve the effect of eliminating the influence of ambient temperature, reliable detection results and accurate judgment

Active Publication Date: 2017-04-26
GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the length of the connecting pipe used in the actual installation may vary greatly, and the different length of the connecting pipe will affect the parameters of the unit, so there is a deviation between the above preset value and the actual situation, resulting in inacc

Method used

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  • Method for detecting refrigerant leakage of air conditioning system and air conditioning system
  • Method for detecting refrigerant leakage of air conditioning system and air conditioning system
  • Method for detecting refrigerant leakage of air conditioning system and air conditioning system

Examples

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Example Embodiment

[0052] Combine the following figure 2 A preferred embodiment of the method of the present invention is described in detail:

[0053] (1) start

[0054] (2) Collect local environmental temperature data

[0055] For example, Internet collection (need to use the built-in communication module of the air conditioning unit): collect the range of local environmental temperature changes, such as the minimum temperature of T min , The highest temperature is T max , Temperature range T min ~T max .

[0056] Or, the unit is built-in before leaving the factory: relevant personnel collect weather data from various places and store it in the unit before leaving the factory.

[0057] For example, the ambient temperature of a place varies from 0℃ to 32℃, namely T min =0℃,T max =32°C.

[0058] (3) Designation of data collection point

[0059] For example, to specify a data collection point every k℃, the total data collection point is (T max -T min ) / k. If k is 4, the data collection points c...

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Abstract

The invention discloses a method for detecting refrigerant leakage of an air conditioning system and the air conditioning system. The method comprises the steps of: S10, collecting the state parameters of the air conditioning system when the external environment temperature is T in an operating process of the air conditioning system and storing the collected data at the temperature for the first time as reference data; S20, in the operating process of the air conditioning system, when the external environment temperature reaches T again, collecting the state parameters of the air conditioning system again; S30, comparing the collected data with the reference data and calculating deviation therebetween; and S40, when the deviation exceeds a predetermined value, judging the condition of refrigerant leakage. When the method disclosed by the invention is used for detecting refrigerant leakage, the detection result is not affected by an actual installing condition; the influence on the environment temperature can be eliminated, so that the extent of refrigerant deficiency in the air conditioning system can be accurately judged, and the detection result is more reliable. The invention further discloses the air conditioning system.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to a method for detecting refrigerant leakage in an air conditioning system. The invention also relates to an air conditioning system. Background technique [0002] For the air-conditioning system, the amount of refrigerant should be kept sufficient. If the refrigerant is missing, the capacity (cooling or heating) of the air-conditioning system will decrease, which will affect the user experience. In the prior art, there are many methods for detecting refrigerant leakage. For example, there is one that obtains the current refrigerant mass flow rate, and judges whether the refrigerant leaks according to the comparison result between the current refrigerant mass flow rate and the standard refrigerant mass flow rate; one that detects the current refrigerant pressure value, and judges whether the refrigerant leaks with the preset pressure value; It is also possible to detect ...

Claims

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Application Information

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IPC IPC(8): F24F11/00
CPCF24F11/30F24F11/52F24F11/62F24F11/64F24F2110/00F24F2110/10
Inventor 张辉王新亮陈淦彬杨林邹俊超唐策运余凯薛寒冬刘群波
Owner GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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