Self-cleaning control method, system and equipment for multi-connected air conditioner and storage medium
A control method and self-cleaning technology, which is applied in air-conditioning systems, heating and ventilation control systems, mechanical equipment, etc., can solve the problems of difficult heat exchanger coil dirt washing, low-pressure pressure drop, and heat exchanger coil frosting Less amount and other problems, to achieve the effect of improving the effect, improving the frosting effect, and better self-cleaning effect
Inactive Publication Date: 2021-08-20
GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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Problems solved by technology
[0003] The embodiment of the present application provides a self-cleaning control method, system, device and storage medium of a multi-connected air conditioner, aiming to solve the problem of the low pressure of the air-conditioning system when the common multi-connected air conditioner performs self-cleaning control. Decrease, resulting in less frosting on the surface of the heat exchanger coils of each indoor unit, making it difficult to effectively wash the dirt on the heat exchanger coils during the defrosting stage
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[0042] This application aims to solve the problem that the low-pressure pressure of the air-conditioning system is difficult to drop during the self-cleaning control of the common multi-connected air conditioner, resulting in a small amount of frost on the surface of the heat exchanger coil of each indoor unit, and it is difficult to clean during the defrosting stage. The technical problem of effectively flushing the dirt of the heat exchanger coil is to repeatedly reduce the temperature of the heat exchanger coil of the indoor unit in the multi-connected air conditioner with poor frosting effect, which not only improves the The frosting effect on the surface of the heat exchanger in the indoor unit also improves the effect of washing the dirt on the surface of the heat exchanger in the indoor unit, making the self-cleaning effect of the air conditioner better.
[0043] In order to better understand the above-mentioned technical solutions, exemplary embodiments of the present d...
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The invention discloses a self-cleaning control method, system and equipment for a multi-connected air conditioner and a storage medium. The method comprises the steps that when an indoor unit receives a self-cleaning control instruction or meets a self-cleaning condition, all indoor units are controlled to operate according to a self-cleaning mode, and all indoor units are enabled to enter a self-cleaning frosting stage; the coil pipe temperature of a heat exchanger of each indoor unit is obtained in the self-cleaning frosting stage; when the coil pipe temperature of the indoor unit is larger than or equal to a preset threshold value, operation parameters of the air conditioner are adjusted so as to reduce the coil pipe temperature of the heat exchanger with the coil pipe temperature larger than or equal to the preset threshold value, and the step of obtaining the coil pipe temperature of the heat exchanger of each indoor unit in the self-cleaning frosting stage is executed again; and when the coil pipe temperatures of all the heat exchangers are smaller than the preset threshold value, all the indoor units are controlled to enter a self-cleaning defrosting stage. The effect of flushing dirt on the surfaces of the heat exchangers of the indoor units of the multi-connected air conditioner is improved.
Description
technical field [0001] The invention relates to the technical field of air conditioners, in particular to a self-cleaning control method, system, equipment and storage medium of a multi-connected air conditioner. Background technique [0002] At present, the self-cleaning control stages of common multi-connected air conditioners are mainly divided into four stages: cooling-frost-defrosting-air supply. Among them, when the multi-connected air conditioner is in the self-cleaning control, each indoor unit in the air-conditioning system is turned on at the same time, and the low-pressure pressure of the air-conditioning system is difficult to drop. When the multi-connected air conditioner is in the frosting stage of self-cleaning control, it is difficult to ensure The surface of the heat exchanger coil of each indoor unit produces a sufficient amount of condensed water, resulting in a small amount of frost on the surface of the heat exchanger coil of each indoor unit, and it is ...
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IPC IPC(8): F24F11/43F24F11/64F24F11/65F24F11/61F24F11/86F24F140/20
CPCF24F11/43F24F11/64F24F11/65F24F11/61F24F11/86F24F2140/20F24F2221/22
Inventor 张浩廖振华黎顺全陶骙
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD