The invention discloses an anti-frosting control method for a carbon dioxide heat pump air conditioner. The anti-frosting control method comprises the steps that whether the ratio (QN-Q0)/Q0 of the difference value between the initial theoretical heating capacity Q0 and the current theoretical heating capacity QN of a carbon dioxide heat pump air conditioner system and the initial theoretical heating capacity Q0 exceeds a set first threshold value or not is judged; under the condition that (QN-Q0)/Q0 does not exceed a set first threshold value, an initial frosting measurement index A0 and a current frosting measurement index AN are obtained; when the ratio AN/A0 of the AN to the A0 is larger than or equal to a set second threshold value, it is judged that the outdoor heat exchanger is not frosted; and when the ratio AN/A0 of the AN to the A0 is smaller than a set second threshold value, it is judged that the outdoor heat exchanger is frosted, and the carbon dioxide heat pump air conditioning system enters an anti-frosting mode or a defrosting mode. Correspondingly, the invention further discloses an anti-frosting control system for the carbon dioxide heat pump air conditioner.

    本发明公开了一种二氧化碳热泵空调防结霜控制方法,其包括:判断二氧化碳热泵空调系统的初始理论制热量Q0与当前理论制热量QN的差值相对于初始理论制热量Q0的比值(QN‑Q0)/Q0是否超过设定的第一阈值;在(QN‑Q0)/Q0未超过设定的第一阈值的情况下,获取初始结霜衡量指标A0与当前结霜衡量指标AN;当AN与A0的比值AN/A0大于等于设定的第二阈值时,判断室外换热器未结霜;当AN与A0的比值AN/A0小于设定的第二阈值时,判断室外换热器结霜,二氧化碳热泵空调系统进入防结霜模式或化霜模式。相应地,本发明还公开了一种二氧化碳热泵空调防结霜控制系统。


    Access

    Download


    Export, share and cite



    Title :

    Anti-frosting control method and system for carbon dioxide heat pump air conditioner


    Additional title:

    一种二氧化碳热泵空调防结霜控制方法及系统


    Contributors:
    WU JINGJING (author) / YAN SHIJIE (author) / ZHENG MEILING (author) / LI MING (author)

    Publication date :

    2023-06-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht



    Anti-frosting automobile heat pump air conditioning system and automobile

    ZHENG DENGLEI / CHENG QINGQING / HE YONG et al. | European Patent Office | 2023

    Free access

    Carbon dioxide heat pump air conditioner control method and system

    GONG XUNFEI / DENG JIANMING / YU QIN et al. | European Patent Office | 2023

    Free access

    Control method for preventing automobile air conditioner from frosting

    LIAO HAIJUN | European Patent Office | 2022

    Free access

    Supersonic aircraft engine anti-frosting heat preservation method

    MENG MEIFANG | European Patent Office | 2020

    Free access

    Transcritical carbon dioxide air conditioner heat pump PID regulation zone control method and system

    CAO FENG / JIA FAN / YIN XIANG et al. | European Patent Office | 2023

    Free access