Fluorine lack detecting method and device for VRF (variable refrigerant flow) system

A multi-connection and air-conditioning technology, which is applied in the direction of measuring devices, space heating and ventilation, and control input related to air characteristics, etc., can solve the problems of increasing production costs, unproposed solutions, complication of industrial design and manufacturing of multi-connection air-conditioning, etc. problem, achieve the effect of reducing production cost and simplifying process design

Active Publication Date: 2015-05-27
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the prior art, the fluorine deficiency detection of multiple air conditioners must rely on high and low pressure sensors. Under the premise of achieving the detection purpose and achieving the same detection effect, the industrial design and manufacture of hi

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  • Fluorine lack detecting method and device for VRF (variable refrigerant flow) system
  • Fluorine lack detecting method and device for VRF (variable refrigerant flow) system
  • Fluorine lack detecting method and device for VRF (variable refrigerant flow) system

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Embodiment 1

[0036] According to an embodiment of the present invention, a method for detecting fluorine deficiency in an air conditioner multi-line is provided, such as figure 1 As shown, the detection method of air-conditioning multi-line fluorine deficiency in this embodiment includes:

[0037] Step S102: Judging whether the multi-connected air conditioner meets the preset fluorine deficiency detection conditions;

[0038] Step S104: If the multi-connected air conditioner meets the fluorine deficiency detection condition, start the compressor of the multi-connected air conditioner, and control the multi-connected air conditioner to enter the working mode;

[0039] Step S106: After the compressor runs for a preset time, collect the working temperature of the multi-connected air conditioner through the temperature sensing package of the multi-connected air conditioner;

[0040] Step S108: Obtain the fluorine deficiency detection result of the multi-connected air conditioner in the workin...

Embodiment 2

[0074] According to another aspect of the embodiment of the present invention, a detection device for lack of fluorine in multi-line air conditioners is also provided, such as Figure 5 shown, including:

[0075] Judging unit 502, used to judge whether the multi-connected air conditioner meets the preset fluorine deficiency detection condition;

[0076] The control unit 504 is used to start the compressor of the multi-connected air conditioner and control the multi-connected air conditioner to enter the working mode if the multi-connected air conditioner meets the fluorine deficiency detection condition;

[0077] The collection unit 506 is used to collect the working temperature of the multi-connected air conditioner through the temperature sensing package of the multi-connected air conditioner after the compressor runs for a preset time;

[0078] A processing unit 508, configured to obtain the fluorine-deficiency detection result of the multi-connected air conditioner in the...

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Abstract

The invention discloses a fluorine lack detecting method and device for a VRF (variable refrigerant flow) system, wherein the method comprises the following steps that whether the VRF system conforms to the preset fluorine lack detecting conditions or not is judged; if the VRF system conforms to the preset fluorine lack detecting conditions, a compressor of the VRF system is started, and in addition, the VRF system is controlled to enter a work mode; after the compressor operates for a preset time, the work temperature of the VRF system is collected through a temperature sensing bulb of the VRF system; the fluorine lack detecting result of the VRF system in the work mode is obtained according to the work temperature; the prompt information whether the VRF system is lack of fluorine or not is generated on the basis of the fluorine lack detecting result of the VRF system in the work mode. The fluorine lack detecting method and the fluorine lack detecting device have the advantages that the fluorine lack detection is realized through the temperature sensing bulb of the VRF system, so that the goals of simplifying the process design and reducing the cost are achieved.

Description

technical field [0001] The invention relates to the field of air conditioners, in particular to a method and device for detecting fluorine deficiency in multi-line air conditioners. Background technique [0002] At present, multi-connected air conditioners detect the fluorine deficiency of multi-connected air conditioners based on the outdoor temperature and the saturation temperature corresponding to high and low pressures. The temperature sensing package is one of the components of the thermal expansion valve of the multi-connected air conditioner. It is usually tied to the outlet pipe of the evaporator to sense the temperature of the outlet pipe, and convert the temperature information into pressure information and send it to the valve body to achieve regulation. The role of flow. [0003] In the prior art, the fluorine deficiency detection of multiple air conditioners must rely on high and low pressure sensors. Under the premise of achieving the detection purpose and ac...

Claims

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Application Information

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IPC IPC(8): F24F11/02G01K13/00G01K13/02
CPCF24F11/30F24F11/62F24F2110/10G01K13/00F24F11/65
Inventor 王瑞强谭锋沈军刘岩张军张阳
Owner GREE ELECTRIC APPLIANCES INC
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