Air conditioner system with frosting delay function and control method thereof

A technology of an air conditioning system and a control method, which is applied to air conditioning systems, compressors with reversible cycles, heating and ventilation control systems, etc., can solve the problems of reducing the improvement of the heating capacity of the unit and affecting the heating effect of the user's thermal sensation, etc. Achieve the effect of delaying frost formation, improving heating capacity and heating effect, and increasing temperature

Active Publication Date: 2019-11-12
GUANGDONG CHIGO HEATING & VENTILATION EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As we all know, under normal working conditions (outdoor dry bulb temperature 7°C/wet bulb temperature 6°C), the normal continuous non-frost running time of the common multi-split air conditioning system is generally 30 minutes,

Method used

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  • Air conditioner system with frosting delay function and control method thereof
  • Air conditioner system with frosting delay function and control method thereof

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with specific embodiment:

[0019] Refer to attached figure 1 And attached figure 2 As shown, this embodiment is an air-conditioning system with the function of delaying frosting, including an air-jet enthalpy-increasing compressor 1, an outdoor heat exchanger 2, an outdoor expansion valve, a plate heat exchanger, an indoor heat exchanger unit and four A refrigerant circulation loop composed of through valves, wherein the indoor heat exchanger unit includes an indoor heat exchanger and an indoor expansion valve, and the plate heat exchanger is arranged on the liquid refrigerant pipeline between the outdoor heat exchanger 2 and the indoor heat exchanger; It includes a gas injection enthalpy branch, wherein the input end of the gas injection enthalpy branch is connected to the liquid refrigerant pipeline between the outdoor heat exchanger 2 and the indoor heat exchanger, and its output end passes throu...

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Abstract

The invention discloses an air conditioner system with the frosting delay function and a control method thereof. The outer pipe wall of a heat exchange pipeline located on the lowest portion in an outdoor heat exchanger is subjected to temperature detection to judge the frosting condition of the outdoor heat exchanger, through increasing the opening degree of an enthalpy increasing expansion valve, the flow of liquid-state refrigerants on a refrigerant circular loop can be reduced, an outlet of the outdoor heat exchanger after the refrigerant flow is reduced easily achieves overheat state, thesurface temperature of the outdoor heat exchanger can be improved, the frosting time of the outdoor heat exchanger is effectively delayed, through control over the opening of a flow electromagnetic valve, the refrigerant flow in the heat exchange pipeline on the lowest portion in the outdoor heat exchanger can be increased, the overheat degree of the refrigerant in the heat exchange pipeline canbe increased, the frosting time of the outdoor heat exchanger can be effectively delayed, the heating time of the air conditioner system is effectively prolonged, the heating capacity and the heatingeffect are improved, and the use experience of a user is greatly improved.

Description

technical field [0001] The invention relates to the technical field of air-conditioning systems, in particular to an air-conditioning system with the function of delaying frosting and a control method thereof. Background technique [0002] As we all know, under normal working conditions (outdoor dry bulb temperature 7°C / wet bulb temperature 6°C), the normal continuous non-frost running time of the common multi-split air conditioning system is generally 30 minutes, and then it will enter the defrosting reverse cycle operation , which not only seriously affects the heating effect and the user's thermal sensation, but also greatly reduces the improvement of the heating capacity of the entire unit. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the object of the present invention is to provide an air conditioning system with high practicability, which can significantly improve the heating effect and has the function of delaying frosting and its...

Claims

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Application Information

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IPC IPC(8): F25B13/00F25B47/02F25B41/04F25B49/02F24F3/06F24F11/42F24F11/64F24F11/70F24F11/61F24F140/20F25B41/20F25B41/31
CPCF25B13/00F25B47/02F25B49/02F24F3/065F24F11/42F24F11/64F24F11/70F24F11/61F24F2140/20F25B41/20
Inventor 漆石球刘益才杨焕弟方挺
Owner GUANGDONG CHIGO HEATING & VENTILATION EQUIP CO LTD
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