Multi-Split Air Conditioner Operational Capacity Detection Method, Multi-Split Air Conditioner, Storage Medium, and Apparatus

Abstract

A multi-split air conditioner operational capacity detection method includes acquiring hydraulic device data of a heat recovery multi-split air conditioner and determining hydraulic device absorption outdoor unit heat quantity based on the hydraulic device data; acquiring outdoor unit data and indoor unit data of the heat recovery multi-split air conditioner. The method includes determining a condenser heating capacity and an evaporator cooling capacity based on the outdoor unit data, the indoor unit data, and the hydraulic device data; determining a heating indoor unit heating capacity and a cooling indoor unit cooling capacity based on a hydraulic device heat absorption value, the condenser heating capacity, and the evaporator cooling capacity; and determining an operational capacity of the heat recovery multi-split air conditioner based on the heating indoor unit heating capacity, the cooling indoor unit cooling capacity, and the hydraulic device absorption outdoor unit heat quantity.

1 . A multi-split air conditioner operational capacity detection method, comprising:
 acquiring hydraulic device data of a heat recovery multi-split air conditioner and determining hydraulic device absorption outdoor unit heat quantity based on the hydraulic device data;   acquiring outdoor unit data and indoor unit data of the heat recovery multi-split air conditioner;   determining a condenser heating capacity and an evaporator cooling capacity based on the outdoor unit data, the indoor unit data, and the hydraulic device data;   determining a heating indoor unit heating capacity and a cooling indoor unit cooling capacity based on a hydraulic device heat absorption value, the condenser heating capacity, and the evaporator cooling capacity; and   determining an operational capacity of the heat recovery multi-split air conditioner based on the heating indoor unit heating capacity, the cooling indoor unit cooling capacity, and the hydraulic device absorption outdoor unit heat quantity.   
     
     
         2 . The multi-split air conditioner operational capacity detection method according to  claim 1 , wherein determining the heating indoor unit heating capacity and the cooling indoor unit cooling capacity based on the hydraulic device heat absorption value, the condenser heating capacity, and the evaporator cooling capacity comprises:
 acquiring a current operation mode of the heat recovery multi-split air conditioner;   determining a heating indoor unit capacity ratio and a cooling indoor unit capacity ratio based on the current operation mode;   determining the heating indoor unit heating capacity based on the heating indoor unit capacity ratio, the hydraulic device heat absorption value, and the condenser heating capacity; and   determining the cooling indoor unit cooling capacity based on the cooling indoor unit capacity ratio and the evaporator cooling capacity.   
     
     
         3 . The multi-split air conditioner operational capacity detection method according to  claim 2 , wherein determining the heating indoor unit capacity ratio and the cooling indoor unit capacity ratio based on the current operation mode comprises:
 determining a first predetermined value as the cooling indoor unit capacity ratio when the current operation mode is a predetermined main cooling mode;   extracting an indoor unit heat transfer coefficient, an indoor unit heat transfer area, and an indoor unit inside ambient temperature from the indoor unit data;   extracting an outdoor unit heat transfer coefficient, an outdoor unit heat transfer area, and an outdoor unit ambient temperature from the outdoor unit data; and   acquiring a high-pressure saturation temperature of the heat recovery multi-split air conditioner, and determining the heating indoor unit capacity ratio based on the indoor unit heat transfer coefficient, the indoor unit heat transfer area, the high-pressure saturation temperature, the indoor unit inside ambient temperature, the outdoor unit heat transfer coefficient, the outdoor unit heat transfer area, and the outdoor unit ambient temperature.   
     
     
         4 . The multi-split air conditioner operational capacity detection method according to  claim 2 , wherein determining the heating indoor unit capacity ratio and the cooling indoor unit capacity ratio based on the current operation mode comprises:
 determining a second predetermined value as the heating indoor unit capacity ratio when the current operation mode is a predetermined main heating mode;   extracting an indoor unit valve flow coefficient from the indoor unit data;   extracting an outdoor unit valve flow coefficient from the outdoor unit data; and   determining the cooling indoor unit capacity ratio based on the indoor unit valve flow coefficient and the outdoor unit valve flow coefficient.   
     
     
         5 . The multi-split air conditioner operational capacity detection method according to  claim 1 , wherein acquiring the hydraulic device data of the heat recovery multi-split air conditioner and determining the hydraulic device absorption outdoor unit heat quantity based on the hydraulic device data comprises:
 acquiring the hydraulic device data of the heat recovery multi-split air conditioner and determining a compressor power, an exhaust pressure, a condenser inlet temperature, a condenser outlet temperature, and a compressor circulation flow rate of a hydraulic device based on the hydraulic device data;   determining a condenser inlet-outlet enthalpy difference based on the exhaust pressure, the condenser inlet temperature, and the condenser outlet temperature;   determining a hydraulic device hot water production capacity based on the compressor circulation flow rate of the hydraulic device and the condenser inlet-outlet enthalpy difference; and   determining the hydraulic device absorption outdoor unit heat quantity based on the hydraulic device hot water production capacity and the compressor power.   
     
     
         6 . The multi-split air conditioner operational capacity detection method according to  claim 1 , wherein determining the condenser heating capacity and the evaporator cooling capacity based on the outdoor unit data, the indoor unit data, and the hydraulic device data comprises:
 determining a condenser average inlet enthalpy, a condenser average outlet enthalpy, an evaporator average outlet enthalpy, and an evaporator inlet enthalpy based on the outdoor unit data, the indoor unit data, and the hydraulic device data;   extracting a compressor circulation flow rate of an outdoor unit from the outdoor unit data;   determining the condenser heating capacity based on the compressor circulation flow rate, the condenser average inlet enthalpy, and the condenser average outlet enthalpy; and   determining the evaporator cooling capacity based on the compressor circulation flow rate, the evaporator average outlet enthalpy, and the evaporator inlet enthalpy.   
     
     
         7 . The multi-split air conditioner operational capacity detection method according to  claim 6 , wherein determining the condenser average inlet enthalpy, the condenser average outlet enthalpy, the evaporator average outlet enthalpy, and the evaporator inlet enthalpy based on the outdoor unit data, the indoor unit data, and the hydraulic device data comprises:
 extracting a compressor return gas pressure, an external heat exchanger inlet temperature, an external heat exchanger outlet temperature, and a compressor exhaust pressure of the outdoor unit from the outdoor unit data;   extracting a heat exchanger inlet temperature of a heating indoor unit, an outlet temperature of the heating indoor unit, and an outlet temperature of a cooling indoor unit from the indoor unit data;   extracting a heat exchanger inlet temperature and a heat exchanger outlet temperature of a hydraulic device from the hydraulic device data;   determining the condenser average inlet enthalpy based on the heat exchanger inlet temperature of the hydraulic device, the heat exchanger inlet temperature of the heating indoor unit, the external heat exchanger inlet temperature, and the compressor exhaust pressure;   determining the condenser average outlet enthalpy based on the heat exchanger outlet temperature of the hydraulic device, the outlet temperature of the heating indoor unit, and the external heat exchanger outlet temperature, and determining the condenser average outlet enthalpy as the evaporator inlet enthalpy; and   determining the evaporator average outlet enthalpy based on the outlet temperature of the cooling indoor unit and the compressor return gas pressure.   
     
     
         8 . A multi-split air conditioner, comprising:
 a memory;   a processor; and   a multi-split air conditioner operational capacity detection program stored on the memory and executable on the processor,   wherein the multi-split air conditioner operational capacity detection program is configured to be executed by the processor, the multi-split air conditioner operational capacity detection program including instructions for:
 acquiring outdoor unit data and indoor unit data of the heat recovery multi-split air conditioner; 
 determining a condenser heating capacity and an evaporator cooling capacity based on the outdoor unit data, the indoor unit data, and the hydraulic device data; 
 determining a heating indoor unit heating capacity and a cooling indoor unit cooling capacity based on a hydraulic device heat absorption value, the condenser heating capacity, and the evaporator cooling capacity; and 
 determining an operational capacity of the heat recovery multi-split air conditioner based on the heating indoor unit heating capacity, the cooling indoor unit cooling capacity, and the hydraulic device absorption outdoor unit heat quantity. 
   
     
     
         9 . The multi-split air conditioner according to  claim 8 , wherein determining the heating indoor unit heating capacity and the cooling indoor unit cooling capacity based on the hydraulic device heat absorption value, the condenser heating capacity, and the evaporator cooling capacity comprises:
 acquiring a current operation mode of the heat recovery multi-split air conditioner;   determining a heating indoor unit capacity ratio and a cooling indoor unit capacity ratio based on the current operation mode;   determining the heating indoor unit heating capacity based on the heating indoor unit capacity ratio, the hydraulic device heat absorption value, and the condenser heating capacity; and   determining the cooling indoor unit cooling capacity based on the cooling indoor unit capacity ratio and the evaporator cooling capacity.   
     
     
         10 . The multi-split air conditioner according to  claim 9 , wherein determining the heating indoor unit capacity ratio and the cooling indoor unit capacity ratio based on the current operation mode comprises:
 determining a first predetermined value as the cooling indoor unit capacity ratio when the current operation mode is a predetermined main cooling mode;   extracting an indoor unit heat transfer coefficient, an indoor unit heat transfer area, and an indoor unit inside ambient temperature from the indoor unit data;   extracting an outdoor unit heat transfer coefficient, an outdoor unit heat transfer area, and an outdoor unit ambient temperature from the outdoor unit data; and   acquiring a high-pressure saturation temperature of the heat recovery multi-split air conditioner, and determining the heating indoor unit capacity ratio based on the indoor unit heat transfer coefficient, the indoor unit heat transfer area, the high-pressure saturation temperature, the indoor unit inside ambient temperature, the outdoor unit heat transfer coefficient, the outdoor unit heat transfer area, and the outdoor unit ambient temperature.   
     
     
         11 . The multi-split air conditioner according to  claim 9 , wherein determining the heating indoor unit capacity ratio and the cooling indoor unit capacity ratio based on the current operation mode comprises:
 determining a second predetermined value as the heating indoor unit capacity ratio when the current operation mode is a predetermined main heating mode;   extracting an indoor unit valve flow coefficient from the indoor unit data;   extracting an outdoor unit valve flow coefficient from the outdoor unit data; and   determining the cooling indoor unit capacity ratio based on the indoor unit valve flow coefficient and the outdoor unit valve flow coefficient.   
     
     
         12 . The multi-split air conditioner according to  claim 9 , wherein acquiring the hydraulic device data of the heat recovery multi-split air conditioner and determining the hydraulic device absorption outdoor unit heat quantity based on the hydraulic device data comprises:
 acquiring the hydraulic device data of the heat recovery multi-split air conditioner and determining a compressor power, an exhaust pressure, a condenser inlet temperature, a condenser outlet temperature, and a compressor circulation flow rate of a hydraulic device based on the hydraulic device data;   determining a condenser inlet-outlet enthalpy difference based on the exhaust pressure, the condenser inlet temperature, and the condenser outlet temperature;   determining a hydraulic device hot water production capacity based on the compressor circulation flow rate of the hydraulic device and the condenser inlet-outlet enthalpy difference; and   determining the hydraulic device absorption outdoor unit heat quantity based on the hydraulic device hot water production capacity and the compressor power.   
     
     
         13 . The multi-split air conditioner according to  claim 8 , wherein determining the condenser heating capacity and the evaporator cooling capacity based on the outdoor unit data, the indoor unit data, and the hydraulic device data comprises:
 determining a condenser average inlet enthalpy, a condenser average outlet enthalpy, an evaporator average outlet enthalpy, and an evaporator inlet enthalpy based on the outdoor unit data, the indoor unit data, and the hydraulic device data;   extracting a compressor circulation flow rate of an outdoor unit from the outdoor unit data;   determining the condenser heating capacity based on the compressor circulation flow rate, the condenser average inlet enthalpy, and the condenser average outlet enthalpy; and   determining the evaporator cooling capacity based on the compressor circulation flow rate, the evaporator average outlet enthalpy, and the evaporator inlet enthalpy.   
     
     
         14 . The multi-split air conditioner according to  claim 13 , wherein determining the condenser average inlet enthalpy, the condenser average outlet enthalpy, the evaporator average outlet enthalpy, and the evaporator inlet enthalpy based on the outdoor unit data, the indoor unit data, and the hydraulic device data comprises:
 extracting a compressor return gas pressure, an external heat exchanger inlet temperature, an external heat exchanger outlet temperature, and a compressor exhaust pressure of the outdoor unit from the outdoor unit data;   extracting a heat exchanger inlet temperature of a heating indoor unit, an outlet temperature of the heating indoor unit, and an outlet temperature of a cooling indoor unit from the indoor unit data;   extracting a heat exchanger inlet temperature and a heat exchanger outlet temperature of a hydraulic device from the hydraulic device data;   determining the condenser average inlet enthalpy based on the heat exchanger inlet temperature of the hydraulic device, the heat exchanger inlet temperature of the heating indoor unit, the external heat exchanger inlet temperature, and the compressor exhaust pressure;   determining the condenser average outlet enthalpy based on the heat exchanger outlet temperature of the hydraulic device, the outlet temperature of the heating indoor unit, and the external heat exchanger outlet temperature, and determining the condenser average outlet enthalpy as the evaporator inlet enthalpy; and   determining the evaporator average outlet enthalpy based on the outlet temperature of the cooling indoor unit and the compressor return gas pressure.   
     
     
         15 . A computer readable storage medium, having a multi-split air conditioner operational capacity detection program stored thereon,
 wherein the multi-split air conditioner operational capacity detection program, when executed by a processor, cause the processor to:
 acquire outdoor unit data and indoor unit data of the heat recovery multi-split air conditioner; 
 determine a condenser heating capacity and an evaporator cooling capacity based on the outdoor unit data, the indoor unit data, and the hydraulic device data; 
 determine a heating indoor unit heating capacity and a cooling indoor unit cooling capacity based on a hydraulic device heat absorption value, the condenser heating capacity, and the evaporator cooling capacity; and 
 determine an operational capacity of the heat recovery multi-split air conditioner based on the heating indoor unit heating capacity, the cooling indoor unit cooling capacity, and the hydraulic device absorption outdoor unit heat quantity. 
   
     
     
         16 . The computer readable storage medium according to  claim 15 , wherein determining the heating indoor unit heating capacity and the cooling indoor unit cooling capacity based on the hydraulic device heat absorption value, the condenser heating capacity, and the evaporator cooling capacity comprises:
 acquiring a current operation mode of the heat recovery multi-split air conditioner;   determining a heating indoor unit capacity ratio and a cooling indoor unit capacity ratio based on the current operation mode;   determining the heating indoor unit heating capacity based on the heating indoor unit capacity ratio, the hydraulic device heat absorption value, and the condenser heating capacity; and   determining the cooling indoor unit cooling capacity based on the cooling indoor unit capacity ratio and the evaporator cooling capacity.   
     
     
         17 . The computer readable storage medium according to  claim 16 , wherein determining the heating indoor unit capacity ratio and the cooling indoor unit capacity ratio based on the current operation mode comprises:
 determining a first predetermined value as the cooling indoor unit capacity ratio when the current operation mode is a predetermined main cooling mode;   extracting an indoor unit heat transfer coefficient, an indoor unit heat transfer area, and an indoor unit inside ambient temperature from the indoor unit data;   extracting an outdoor unit heat transfer coefficient, an outdoor unit heat transfer area, and an outdoor unit ambient temperature from the outdoor unit data; and   acquiring a high-pressure saturation temperature of the heat recovery multi-split air conditioner, and determining the heating indoor unit capacity ratio based on the indoor unit heat transfer coefficient, the indoor unit heat transfer area, the high-pressure saturation temperature, the indoor unit inside ambient temperature, the outdoor unit heat transfer coefficient, the outdoor unit heat transfer area, and the outdoor unit ambient temperature.   
     
     
         18 . The computer readable storage medium according to  claim 16 , wherein determining the heating indoor unit capacity ratio and the cooling indoor unit capacity ratio based on the current operation mode comprises:
 determining a second predetermined value as the heating indoor unit capacity ratio when the current operation mode is a predetermined main heating mode;   extracting an indoor unit valve flow coefficient from the indoor unit data;   extracting an outdoor unit valve flow coefficient from the outdoor unit data; and   determining the cooling indoor unit capacity ratio based on the indoor unit valve flow coefficient and the outdoor unit valve flow coefficient.   
     
     
         19 . The computer readable storage medium according to  claim 15 , wherein acquiring the hydraulic device data of the heat recovery multi-split air conditioner and determining the hydraulic device absorption outdoor unit heat quantity based on the hydraulic device data comprises:
 acquiring the hydraulic device data of the heat recovery multi-split air conditioner and determining a compressor power, an exhaust pressure, a condenser inlet temperature, a condenser outlet temperature, and a compressor circulation flow rate of a hydraulic device based on the hydraulic device data;   determining a condenser inlet-outlet enthalpy difference based on the exhaust pressure, the condenser inlet temperature, and the condenser outlet temperature;   determining a hydraulic device hot water production capacity based on the compressor circulation flow rate of the hydraulic device and the condenser inlet-outlet enthalpy difference; and   determining the hydraulic device absorption outdoor unit heat quantity based on the hydraulic device hot water production capacity and the compressor power.   
     
     
         20 . The computer readable storage medium according to  claim 15 , wherein determining the condenser heating capacity and the evaporator cooling capacity based on the outdoor unit data, the indoor unit data, and the hydraulic device data comprises:
 determining a condenser average inlet enthalpy, a condenser average outlet enthalpy, an evaporator average outlet enthalpy, and an evaporator inlet enthalpy based on the outdoor unit data, the indoor unit data, and the hydraulic device data;   extracting a compressor circulation flow rate of an outdoor unit from the outdoor unit data;   determining the condenser heating capacity based on the compressor circulation flow rate, the condenser average inlet enthalpy, and the condenser average outlet enthalpy; and   determining the evaporator cooling capacity based on the compressor circulation flow rate, the evaporator average outlet enthalpy, and the evaporator inlet enthalpy.