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Multi-split outdoor unit defrosting control system and method

A control system and outdoor unit technology, applied in the direction of machinery and equipment, can solve the problems of lack of comprehensive cognition and monitoring of the frosting process, neglect of heat exchanger drainage problems, and insufficient attention to operating conditions, etc., to achieve good defrosting effect, Simple structure, economical and reliable effect

Pending Publication Date: 2018-08-21
SCEGC EQUIP INSTALLATION GRP COMPANY
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AI Technical Summary

Problems solved by technology

[0004] 1) Lack of comprehensive cognition and monitoring of the frosting process, resulting in uncertain defrosting;
[0005] 2) One-sided understanding of the frosting area, resulting in incomplete defrosting;
[0006] 3) Ignore the drainage problem of the heat exchanger;
[0007] 4) Insufficient attention to operating conditions;

Method used

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  • Multi-split outdoor unit defrosting control system and method

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Embodiment Construction

[0028] The present invention is described in further detail below in conjunction with accompanying drawing:

[0029] Such as figure 1 As shown, a multi-connected outdoor unit defrosting control system includes an imaging sensor 5 arranged on the surface of the fin 7 of the multi-connected outdoor unit 2. The imaging sensor 5 is connected to the defrosting controller 3 through the imaging signal transmission line 6. The defrosting The controller 3 is connected to the defrosting system through the defrosting control line 4;

[0030] The imaging sensor 5 is used to acquire the image information of frosting on the surface of the fins 7 of the multi-connected outdoor unit 2, and transmit the frosting information on the surface of the fins 7 of the multi-connected outdoor unit 2 to the defrosting controller 3;

[0031] The defrosting controller 3 is used to receive the frosting image information on the fin surface transmitted by the imaging sensor, and compare it with the preset th...

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Abstract

The invention discloses a multi-split outdoor unit defrosting control system and method. The system comprises an imaging sensor arranged on the surface of a multi-split outdoor unit fin, the imaging sensor is connected with a defrosting controller through an imaging signal transmission line, and the defrosting controller is connected to a defrosting system through a defrosting control line. The imaging sensor is used for acquiring multi-split outdoor unit fin surface defrosting image information and transmitting the multi-split outdoor unit fin surface defrosting image information to the defrosting controller. Images are acquired by the imaging sensor, defrosting treatment can be performed once a preset threshold value is achieved, defrosting can be timely performed, defrosting effects aregood, building comfort is improved, and the system is economical, reliable, reasonable in running and convenient to mount. Automatic control is adopted, and expert management is omitted in cold weather.

Description

technical field [0001] The invention belongs to the field of research on energy saving of building equipment, and in particular relates to a multi-connected outdoor unit defrosting control system. Background technique [0002] The defrosting research technologies of air source heat pump system and outdoor unit of multi-connected air conditioning system are rich and varied, and there are also many defrosting control methods. Control method, self-correction defrosting control method, air pressure difference defrosting control method, maximum average heating capacity defrosting control method and more than ten kinds of defrosting control methods; fuzzy intelligent control defrosting method; refrigerant superheat defrosting control method ; Fan current and evaporation temperature combined control defrosting method; comprehensive frosting index (FI) to judge the defrosting control method; indoor and outdoor dual sensor defrosting control method; temperature difference defrosting ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/42F24F11/64
CPCF24F11/42F24F11/64
Inventor 冯璐王继前李兴武胡春林王屾范翔石沛鑫
Owner SCEGC EQUIP INSTALLATION GRP COMPANY
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