Method and device for judging fluorine deficiency of air-conditioning refrigerant

A judging method and air-conditioning technology, applied in space heating and ventilation, space heating and ventilation control input, heating mode, etc., can solve problems such as insufficient refrigerant, no solution proposed, air-conditioning performance impact, etc., to achieve simple Effect

Active Publication Date: 2018-10-23
GREE ELECTRIC APPLIANCES INC
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] After the air conditioner has been used for a long time, the problem of insufficient refrigerant often occurs. At this time, the pressure of the entire system will drop sharply, and the exhaust gas will soar to a high level, which will affect the performance of the air conditioner. air conditioning damage
[0003] For how to effectively detect the problem of insufficient refrigerant so as to take reasonable protective measures, no effective solution has been proposed so far

Method used

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  • Method and device for judging fluorine deficiency of air-conditioning refrigerant
  • Method and device for judging fluorine deficiency of air-conditioning refrigerant

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Embodiment Construction

[0020] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the embodiments and accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0021] In order to enable users to discover the lack of fluorine in the air conditioner prototype in time, so as to find after-sales maintenance in time for fluorine addition operation, so as to ensure that the air conditioner can work stably and effectively. In this example, a method for judging the lack of fluorine in the air-conditioning refrigerant is provided, such as figure 1 shown, including the following steps:

[0022] Step 101: Obtain the temperature of the inner ring and the temperature of the inner pipe after the first predetermined time after the air conditioner is turned on;

[...

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Abstract

The invention provides an air conditioner refrigerant fluorine deficiency judgment method and device. The method comprises the following steps: acquiring the inner-ring temperature and inner-tube temperature of an air conditioner after the air conditioner is started up and operates for a first preset time; acquiring the evaporation pressure of the air conditioner; and when the evaporation pressure is less than or equal to a refrigerant fluorine deficiency pressure judgment critical value and the difference between the inner-ring temperature and the inner-tube temperature is less than or equal to a first preset difference, controlling the air conditioner to get into a fluorine deficiency judgment mode. The method and the device solve the technical problem that refrigerant deficiency cannot be detected effectively in the prior art, achieve the purpose of effectively finding whether the air conditioner lacks fluorine, and are simple to realize.

Description

technical field [0001] The invention relates to the technical field of air-conditioning control, in particular to a method and a device for judging the lack of fluorine in an air-conditioning refrigerant. Background technique [0002] After the air conditioner has been used for a long time, the problem of insufficient refrigerant often occurs. At this time, the pressure of the entire system will drop sharply, and the exhaust gas will soar to a high level, which will affect the performance of the air conditioner. Air conditioning damage. [0003] For how to effectively detect the problem of insufficient refrigerant so as to take reasonable protection measures, no effective solution has been proposed so far. Contents of the invention [0004] An embodiment of the present invention provides a method for judging the lack of fluorine in an air-conditioning refrigerant to achieve the purpose of effectively detecting the lack of refrigerant. The method includes: [0005] Obtain...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/32F24F11/61F24F11/64
CPCF24F11/30F24F11/83F24F11/85F24F2110/00F24F2140/12F24F2140/20
Inventor 张瀛龙邓李娇杨方群
Owner GREE ELECTRIC APPLIANCES INC
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