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Control method and system of electromagnetic valve for air conditioner liquid injecting cooling and air conditioner

A liquid spray cooling and control method technology, which is applied in the direction of refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve problems such as imperfections and poor reliability of solenoid valve control, achieve good lubrication, improve service life and reliability Effect

Active Publication Date: 2016-09-07
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a control method, system and air conditioner for a solenoid valve for liquid spray cooling in an air conditioner, so as to solve the technical problem that the reliability of the solenoid valve control is poor and not perfect

Method used

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  • Control method and system of electromagnetic valve for air conditioner liquid injecting cooling and air conditioner
  • Control method and system of electromagnetic valve for air conditioner liquid injecting cooling and air conditioner

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Embodiment Construction

[0070] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0071] The open control flow chart of the electromagnetic valve of the present invention can be found in figure 1 , the air conditioner includes a control unit and a solenoid valve used to control the bypass of the liquid refrigerant of the air conditioner compressor to the low pressure side of the compressor, the control unit is used to control the opening and closing of the solenoid valve,

[0072] The control unit is based on the relationship between the discharge temperature T1 of the compressor and the preset value of the discharge temperature;

[0073] and / or,

[0074] The relationship between the degree of superheat of the compressor exhaust of the control unit and the preset temperature;

[0075] Control the opening and closing of the solenoid valve.

[0076] The opening and closing of the solenoid valve is controlled by increasing the rela...

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PUM

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Abstract

The invention provides a control method of an electromagnetic valve for air conditioner liquid injecting cooling. An air conditioner comprises a control unit and the electromagnetic valve used for controlling liquid refrigerants of a compressor of the air conditioner to be bypassed to the low-pressure side of the compressor. The control unit is used for controlling the electromagnetic valve to be opened and closed. The control unit controls the electromagnetic valve to be opened and closed according to the magnitude relation of the exhaust temperature T1 of the compressor and the exhaust temperature preset value and / or the magnitude relation of the exhaust superheat degree of the compressor of the control unit and the preset temperature value. The electromagnetic valve is controlled to be opened and closed by increasing the magnitude relation of the exhaust superheat degree and the preset temperature value. Thus, compressor oil has a good lubrication effect, the service life of the compressor is prolonged, and the reliability of the compressor is improved.

Description

technical field [0001] The invention relates to the technical field of air conditioner control, in particular to a method and system for controlling a solenoid valve for liquid spray cooling of an air conditioner and an air conditioner. Background technique [0002] At present, air-conditioning technology will increase the control of spray cooling in the air-conditioning system for the reliable operation of high-temperature refrigeration. [0003] Liquid spray cooling is a method of bypassing liquid refrigerant to the low-pressure side of the system (return air end), and a solenoid valve is used to control the opening and closing. [0004] The role of liquid spray cooling is to effectively limit the exhaust temperature, prevent the compressor winding from overheating, the deterioration of lubricating oil, and the aging of insulation materials. The current air-conditioning products mainly use the exhaust gas temperature to control the opening of the electromagnetic valve, wh...

Claims

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Application Information

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IPC IPC(8): F25B49/02
CPCF25B49/022F25B2500/16F25B2600/25F25B2700/21152F25B2700/2116
Inventor 李荣江
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD
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