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Heat recovery multi-line external machine system and valve body failure detection method

A detection method and multi-connection technology, applied in refrigerators, mechanical equipment, fluid circulation arrangements, etc., can solve the problems of electromagnetic valve body control failure, failure to judge valve body failure, lack of detection methods for valve body failure, etc., to achieve Ensure working status, judge accurate and timely results

Active Publication Date: 2018-01-23
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the actual refrigerant adjustment process, the selection of the power supply voltage is different or the screws on the valve body coil are loose, etc., which may cause one or several electromagnetic valve bodies (the valve body that controls the liquid inlet includes the liquid inlet valve and the pressure equalization valve) , The valve body that controls the liquid discharge (including the pressurization valve and the liquid discharge valve) control failure, which leads to the inability to control the amount of refrigerant circulation in the system, affecting the reliability and comfort of the unit
Existing devices lack a detection method for judging whether these valve bodies fail, especially which valve body fails

Method used

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  • Heat recovery multi-line external machine system and valve body failure detection method
  • Heat recovery multi-line external machine system and valve body failure detection method

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Embodiment 1

[0026] The preferred embodiment discloses a heat recovery multi-line outdoor machine system. Such as figure 1 As shown, the system includes a refrigerant adjustment tank 1, a pressure detection device 2 arranged between the liquid inlet 11 and the discharge end 12 of the refrigerant adjustment tank 1, and a pressure valve 3 arranged at the inlet 11 of the refrigerant adjustment tank 1. , The inlet valve 5, the equalizing valve 6, and the drain valve 4 arranged at the drain end 12 of the refrigerant adjustment tank 1.

[0027] The pressure detection device 2 is used to detect the pressure value between the liquid inlet 11 and the liquid discharge end 12 of the refrigerant adjustment tank 1, and determine whether there is a valve body control failure according to the trend and / or range of the pressure value change of the refrigerant adjustment tank 1, and It is possible to know which one or several of the valve body control fails.

[0028] The specific structure of the pressure dete...

Embodiment 2

[0035] The preferred embodiment discloses a heat recovery multi-line outdoor machine system and a valve body failure detection method based on the system. The heat recovery multi-line external machine system is the same as the preferred embodiment 1. The valve body failure detection method when the heat recovery multi-line external machine system is in the process of liquid intake is as follows: figure 2 As shown by the middle thick line, the inlet valve 5 and the equalizing valve 6 of the refrigerant adjustment tank 1 will be opened at the same time. The inlet valve 5 is connected to the high pressure end of the system, and the equalizing valve 6 is connected to the low pressure end of the system, and the inlet valve The liquid valve 5 and the pressure equalizing valve 6 make the liquid inlet process to establish a larger pressure difference, which is beneficial to the liquid inlet. When the liquid supply is over, the refrigerant enters the refrigerant adjustment tank 1, and ...

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Abstract

The invention discloses a heat recovery multi-line external machine system and a valve body failure detection method, which belong to the field of heat recovery multi-line external machine systems and detection methods thereof, and are designed to solve problems such as lack of methods for detecting valve body failure in the prior art . The heat recovery multi-line external unit system of the present invention includes a refrigerant adjustment tank, a pressurization valve arranged at the liquid inlet end of the refrigerant adjustment tank, a liquid inlet valve, a pressure equalizing valve, and a liquid discharge valve arranged at the liquid discharge end of the refrigerant adjustment tank. The system also includes The pressure detection device is arranged between the liquid inlet end and the liquid discharge end of the refrigerant adjustment tank; the pressure detection device is used to detect the pressure value between the liquid inlet end and the liquid discharge end of the refrigerant adjustment tank. The heat recovery multi-line external unit system of the present invention can judge whether the control of the valve body is invalid according to the pressure value. The valve body failure detection method of the present invention can ensure that the heat recovery multi-line external unit system works normally.

Description

Technical field [0001] The invention relates to the field of heat recovery multi-online external machine systems and detection methods thereof, in particular to a heat recovery multi-line external machine system and a valve body failure detection method based on the heat recovery multi-line external machine system. Background technique [0002] The refrigerant adjustment tank is a device used to adjust the flow of the refrigerant circulating in the heat recovery multi-line external machine system. In order to better control the amount of circulating refrigerant in the system, multiple valves are usually set on the refrigerant adjustment tank to enhance control. [0003] However, in the actual refrigerant adjustment process, the difference in the selection of the power supply voltage or the loosening of the screw on the valve body coil may cause one or several solenoid valve bodies (the valve body that controls the liquid inlet includes the liquid inlet valve and the pressure equali...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B41/04F25B49/00F25B41/20
CPCF25B49/00F25B41/20
Inventor 张一鹤代文杰包本勇李卫国陈敏熊建国张仕强
Owner GREE ELECTRIC APPLIANCES INC