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Method and device for detecting refrigerating capacity of air conditioner and air conditioner

A technology for air-conditioning refrigeration and volume measurement, which is applied in the direction of control input involving air characteristics, space heating and ventilation control input, heating methods, etc., and can solve problems such as unclear users and unquantified output capabilities

Inactive Publication Date: 2017-06-13
GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The cooling capacity stated on the nameplate of the room air conditioner is tested under the conditions specified in the national standard and the specified test method. The capacity is different from that on the nameplate, and its output capacity varies with indoor (outdoor) air temperature, indoor (outside) air humidity, difference between indoor set temperature and actual temperature, power supply (such as power supply voltage), compressor operating frequency, indoor The gear of the external fan, the heat transfer of the heat exchanger and many other factors change, but the specific change and the output capacity are not quantified, and the user does not know at all
In the air conditioner manufacturer, the laboratory can simulate various use conditions to quantitatively test its cooling capacity. In the use place, due to technical problems such as sampling and calculation procedures, there is no similar product on the market.

Method used

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  • Method and device for detecting refrigerating capacity of air conditioner and air conditioner
  • Method and device for detecting refrigerating capacity of air conditioner and air conditioner
  • Method and device for detecting refrigerating capacity of air conditioner and air conditioner

Examples

Experimental program
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Effect test

Embodiment 1

[0117] like figure 1 As shown, this embodiment proposes a method for measuring the cooling capacity of an air conditioner, and the method includes:

[0118] S1. Detect whether the air conditioner is running in cooling mode, if yes, execute S2, if not, perform cooling capacity detection until it is detected that the air conditioner is running in cooling mode;

[0119] S2. Calculate the mass circulation volume of the refrigerant per hour, the enthalpy value of the refrigerant at the inlet of the evaporator, and the enthalpy value of the refrigerant at the outlet of the evaporator according to the internal parameters of the air conditioner and the calculation method of the physical property parameters of the corresponding refrigerant specifications of the air conditioner;

[0120] S3. Calculate and obtain the cooling capacity of the air conditioner according to the mass circulation amount of the refrigerant per hour, the enthalpy value of the refrigerant at the inlet of the evapo...

Embodiment 2

[0161] like figure 2 As shown, this embodiment proposes a device for measuring the cooling capacity of an air conditioner, and the device includes:

[0162] The mode detection module is used to detect whether the air conditioner is running in cooling mode;

[0163] The intermediate volume calculation module is used to calculate the mass circulation volume of the refrigerant per hour, the enthalpy value of the refrigerant at the inlet of the evaporator and the The enthalpy of the refrigerant at the outlet;

[0164] The cooling capacity calculation module is used to calculate and obtain the cooling capacity of the air conditioner according to the mass circulation volume of the refrigerant per hour, the enthalpy value of the refrigerant at the inlet of the evaporator, and the enthalpy value of the refrigerant at the outlet of the evaporator.

[0165] During the cooling period of the air conditioner, the internal software algorithm of the air conditioner collects and calculates...

Embodiment 3

[0225] This embodiment proposes an air conditioner including the above-mentioned air-conditioning cooling capacity measuring device. A compressor discharge temperature sensor C1 is installed at the compressor discharge port of the air conditioner to measure the temperature of the compressor when the compressor is working. Refrigerant discharge temperature T 1 , a temperature sensor C2 is installed in the middle of the condenser to measure the condensing temperature T of the refrigerant in the condenser when the condenser is working 2 , a temperature sensor C3 is installed at the outlet of the condenser to measure the temperature T of the refrigerant at the outlet of the condenser when it is working 3 , a temperature sensor C4 is installed at the inlet of the evaporator to measure the temperature T at the inlet when the evaporator is working 4 , a temperature sensor C5 is installed in the middle of the evaporator to measure the temperature T in the middle of the evaporator whe...

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Abstract

The invention relates to a method and a device for detecting the refrigerating capacity of an air conditioner and the air conditioner, and relates to the technical field of air conditioning. When the air conditioner is running in a refrigeration mode, calculating the mass circulation volume per hour of a refrigerant, an enthalpy value of the refrigerant at an evaporator inlet and an enthalpy value of the refrigerant at an evaporator outlet according to the intrinsic parameters of the air conditioner and a physical property parameter computing method of refrigerant specification corresponding to the air conditioner; calculating to obtain the refrigerating capacity of the air conditioner according to the mass circulation volume per hour of the refrigerant, the enthalpy value of the refrigerant at the evaporator inlet and the enthalpy value of the refrigerant at the evaporator outlet. The method and the device provided by the invention have the characteristic that the refrigerating capacity output of the air conditioner can be detected in real time through calculating the mass flow rate of the refrigerant in a self-refrigerating system and the temperature parameter of the refrigerant in an indoor-outdoor heat exchanger (i.e. an evaporator and a condenser) by a software algorithm inside the air conditioner, so that a user can know the refrigerating capacity of the air conditioner in a more visual way.

Description

technical field [0001] The invention relates to the technical field of air conditioning regulation, in particular to the field of air conditioning cooling capacity measurement. Background technique [0002] The cooling capacity stated on the nameplate of the room air conditioner is tested under the conditions specified in the national standard and the specified test method. The capacity is different from that on the nameplate, and its output capacity varies with indoor (outdoor) air temperature, indoor (outside) air humidity, difference between indoor set temperature and actual temperature, power supply (such as power supply voltage), compressor operating frequency, indoor The gear of the external fan, the heat transfer of the heat exchanger and many other factors change, but the specific amount of change and the output capacity are not quantified, and the user does not know at all. In the air conditioner manufacturer, the laboratory can simulate various usage conditions to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00
CPCF24F11/30F24F11/62F24F11/64F24F11/65F24F2110/00F24F2110/10F24F2110/12F24F2140/20
Inventor 张桃戚文端
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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