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Control method and device for preventing liquid slugging of compressor of air conditioner and air conditioner

A control method and compressor technology, which is applied in the field of air conditioner and air conditioner anti-compressor liquid shock control, which can solve the problems of liquid shock damage and unusable air conditioner, so as to reduce loss, improve low temperature reliability, and avoid frequent The effect of switching devices on and off

Inactive Publication Date: 2020-11-24
NINGBO AUX ELECTRIC +1
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] The problem solved by the invention is that when the compressor is turned on after refrigerant migration occurs, the compressor starts with liquid, which may cause liquid damage and cause the air conditioner to be unusable

Method used

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  • Control method and device for preventing liquid slugging of compressor of air conditioner and air conditioner
  • Control method and device for preventing liquid slugging of compressor of air conditioner and air conditioner
  • Control method and device for preventing liquid slugging of compressor of air conditioner and air conditioner

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Embodiment Construction

[0046] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0047] The invention proposes a control method for preventing compressor liquid shock of an air conditioner.

[0048] The air conditioner anti-compressor liquid shock control method is applied to an air conditioner, such as figure 2 and image 3, the air conditioner includes an outdoor heat exchanger 8, an indoor heat exchanger 9, a throttle valve 10, a compressor 4 and a controller 7, and the air conditioner also includes a heating device 1 for heating the compressor 4, and for A switch device 2 for controlling the on-off of the suction pipeline 5 of the compressor 4 .

[0049] Wherein, the controller 7 is used to control the heating device 1 and the switch device 2 , and can also be used to control other components such as the outdoor...

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Abstract

The invention provides a control method and device for preventing liquid slugging of a compressor of an air conditioner and the air conditioner. The control method comprises the steps that when a standby signal is detected, the standby duration is counted, and the outdoor environmental temperature is detected; and a heating device is controlled to heat the compressor according to the standby duration and the outdoor environmental temperature, and / or a switching device is controlled to be switched off. According to the control method and device for preventing liquid slugging of the compressor of the air conditioner and the air conditioner, the problem that the compressor is started with liquid can be avoided, and the low-temperature reliability of the compressor is improved.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to an air conditioner anti-compressor liquid shock control method and device, and an air conditioner. Background technique [0002] Start with liquid refers to start when the compressor contains liquid refrigerant. When the compressor starts, the pressure suddenly drops, and the liquid refrigerant in the compressor will suddenly boil, causing the lubricating oil to foam. Once these foams are sucked into the air cavity through the air inlet , the foam will return to liquid, which is easy to cause liquid shock. Refrigerant migration is one of the main reasons for the liquid-filled startup of the compressor. When the air conditioner is shut down, due to the relatively large specific heat capacity of the refrigerant oil in the compressor, it is easy for the compressor temperature to be lower than the condenser / evaporator temperature. The temperature difference creates a pressu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/32F24F11/64F24F11/86F24F11/88F25B49/02F24F110/12
CPCF25B49/022F25B2500/28F24F11/32F24F11/64F24F11/86F24F11/88F24F2110/12
Inventor 胡志文韩劼成孙义文应必业
Owner NINGBO AUX ELECTRIC
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