Control method and control device for two-stage gas replenishing and enthalpy increasing system

A technology of supplementary air enthalpy increase and control method, which is applied in heating and ventilation control systems, heating and ventilation safety systems, heating methods, etc., and can solve the problems of low control accuracy of the two-stage air supplemental enthalpy increase system
CN105953386AActive Publication Date: 2016-09-21GREE ELECTRIC APPLIANCES INC
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
GREE ELECTRIC APPLIANCES INC
Publication Date
2016-09-21

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Abstract

The invention discloses a control method and a control device for a two-stage gas replenishing and enthalpy increasing system. The control method comprises the following steps of acquiring a target gas replenishing temperature of the two-stage gas replenishing and enthalpy increasing system, wherein the target gas replenishing temperature is determined on the basis of evaporation temperature and condensation temperature of the two-stage gas replenishing and enthalpy increasing system and operation frequency of a compressor; and adjusting the opening degree of an electronic expansion valve of the two-stage gas replenishing and enthalpy increasing system based on the target gas replenishing temperature and current gas replenishing temperature of the two-stage gas replenishing and enthalpy increasing system. According to the control method and the control device disclosed by the invention, the technical problem of low control accuracy of the two-stage gas replenishing and enthalpy increasing system in the prior art is solved.
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Description

technical field

[0001] The invention relates to the field of air conditioner control, in particular to a control method and device for a two-stage air supplement enthalpy increasing system. Background technique

[0002] Compared with the single-stage air supplement enthalpy system adopted by the air conditioner, the two-stage air supplement enthalpy system increases the intermediate air supplement process. To ensure that the two-stage air supplement enthalpy system can operate at the best performance is the current two-stage air supplement enthalpy increase system. Difficulties in the control of enthalpy systems. At present, the control of the best performance of the dual-stage air supplement enthalpy system is mainly reflected in the control of the optimal air supplement coefficient. Under certain working conditions, when the optimal air supplement coefficient is met, the dual-stage air supplement The system then runs at its optimum performance.

[0003] However, in the p...

Claims

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