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Multi-connection system, anti-liquid strike control method, device and readable storage medium

A multi-line system and control method technology, applied in the direction of pump control, refrigerators, refrigeration components, etc., can solve problems such as liquid shock, cylinder damage, compressor damage, etc., to prevent liquid shock, improve performance and reliability, The effect of reducing the risk of liquid hammer

Active Publication Date: 2021-07-27
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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AI Technical Summary

Problems solved by technology

[0002] In the air conditioning system, when the compressor is running with liquid, a large amount of liquid refrigerant enters the compression chamber, because the compressor cannot compress the liquid, and it will cause liquid shock, which will cause damage to the cylinder; in addition, the lubricating oil in the cylinder will dissolve in the The liquid refrigerant is taken out of the compressor, causing the compressor to be unable to lubricate due to lack of oil, and it is extremely easy to cause damage to the compressor during long-term operation

Method used

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  • Multi-connection system, anti-liquid strike control method, device and readable storage medium
  • Multi-connection system, anti-liquid strike control method, device and readable storage medium
  • Multi-connection system, anti-liquid strike control method, device and readable storage medium

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Embodiment Construction

[0037] The present invention compares the exhaust superheat of each compressor with the preset exhaust superheat, and adjusts the operating frequency of each outdoor compressor according to different comparison results, so as to reduce the risk of compressor liquid shock and improve the performance of the compressor. Performance and reliability, to ensure that the superheat of the compressor exhaust of each outdoor unit remains normal, thereby preventing the occurrence of compressor liquid hammer.

[0038] In order to better understand the above-mentioned technical solutions, exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for m...

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Abstract

The invention discloses a multi-connection system, a liquid shock prevention control method, a device and a readable storage medium. The method includes: when there are multiple outdoor units working at the same time in the multi-connection system, obtaining the compressors of the plurality of working outdoor units Exhaust superheat; when the acquired compressor exhaust superheat of outdoor units is less than the first preset exhaust superheat, compare the compressor exhaust superheat of each outdoor unit with the second preset exhaust superheat For comparison; if the compressor exhaust superheat of each outdoor unit is less than or equal to the second preset exhaust superheat, the frequency increase control is performed on the working outdoor unit; if the compressor exhaust superheat of each outdoor unit If it is not all less than the second preset exhaust superheat degree, reduce the frequency or maintain the current frequency control for the outdoor units whose compressor exhaust superheat degree is less than the second preset exhaust superheat degree 2. The outdoor unit with the preset exhaust superheat degree performs up-frequency control. The invention reduces the risk of compressor liquid hammer.

Description

technical field [0001] The invention relates to the technical field of air conditioning, and in particular to a multi-connection system, a liquid shock prevention control method, a device and a readable storage medium. Background technique [0002] In the air conditioning system, when the compressor is running with liquid, a large amount of liquid refrigerant enters the compression chamber, because the compressor cannot compress the liquid, and it will cause liquid shock, which will cause damage to the cylinder; in addition, the lubricating oil in the cylinder will dissolve in the The liquid refrigerant is taken out of the compressor, causing the compressor to be unable to lubricate due to lack of oil, and it is extremely easy to cause damage to the compressor during long-term operation. Contents of the invention [0003] The main purpose of the present invention is to propose a multi-line system, anti-liquid shock control method, device and readable storage medium, aiming...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B49/02F25B41/40F04B49/06F25B41/20F25B41/34
CPCF25B49/022F25B41/00F04B49/065
Inventor 郑春元王命仁
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD
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