Air-conditioning system, method and device for measuring refrigerant weight of air-conditioning system

Abstract

The invention discloses an air conditioning system, and a method and device for measuring the weight of refrigerants of the air conditioning system. The method for measuring the weight of the refrigerants of the air conditioning system specifically comprises the steps that a compressor and a solenoid valve are controlled, and thus the refrigerants are all stored in an outdoor unit or an indoor unit and all discharged to the outdoor unit or the indoor unit; the weights of the outdoor unit or the indoor unit in the two states are measured and calculated correspondingly; and the weight of the refrigerants is obtained through the weight difference of the outdoor unit or the indoor unit in the two states. The weight of the refrigerants of the air conditioning system can be measured, and variousafter-sale problems related to the refrigerants are advantageously analyzed and solved.

Description

technical field [0001] The invention relates to a split-type air-conditioning system, in particular to a method and device for measuring the weight of refrigerant in an air-conditioning system, and an air-conditioning system using the device. Background technique [0002] The weight of the refrigerant in the air-conditioning system closely affects the use of the air-conditioner. Many after-sales problems in the air-conditioning industry are caused by abnormal refrigerants. [0003] In the prior art, due to the complex installation structure of the air conditioning system, the calculation of the weight of the refrigerant in the industry is still at the stage of evaluation, that is, the engineer calculates the weight of the refrigerant based on his personal engineering experience and with reference to parameters such as system pressure, operating frequency, and degree of subcooling. Estimate whether the refrigerant is too much or too little. The estimation result obtained by t...

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Problems solved by technology

[0003] In the prior art, due to the complex installation structure of the air conditioning system, the calculation of the weight of the refrigerant in the industry is still in the stage of evaluation, that is, the engineer calculates the weight of the refrigerant based on his personal engineering experience and with reference to parameters such as system pressure, operating frequency, and subcooling degree. Estimate whether there is too much or too little refrigerant. The estimation result obtained by this method is vague and cannot be quantified. It is unable to provide more detailed support and help for analyzing and solving various sales problems caused by refrigerant abnormalities.

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