Judging method of refrigeration dose rationality

Abstract

The invention relates to the technical field of refrigeration system maintaining, and provides a judging method of refrigeration dose rationality. The judging method is used for solving the problem that judging whether the refrigerant dose is suitable for not during refrigerant supplementing cannot be conveniently performed. The method comprises the steps that during refrigerant charging, the winding temperature of a compressor motor and the exhaust temperature of a compressor are obtained in real time under the condition that a refrigeration system required to be filled with the refrigerant runs during filling, the temperature difference between the winding temperature and the exhaust temperature is marked as the actual temperature difference; according to the preset running condition obtained through test in advance and corresponding relation of the temperature difference between the winding temperature and the exhaust temperature of the refrigeration system with the refrigeration dose as the target amount and under the preset running condition, the estimated temperature difference between d winding temperature and exhaust temperature of the refrigeration system with the refrigeration dose as the target amount and under the filling running condition can be obtained and marked as the estimated temperature difference; whether the actual temperature difference is matched with the estimated temperature difference is judged, and if yes, the refrigeration dose basically reaches the target amount. The method is suitable for monitoring whether the refrigeration dose in the refrigeration system is suitable for not.

Description

technical field [0001] The invention relates to the technical field of refrigeration system maintenance, in particular to a method for judging the rationality of the amount of refrigerant. Background technique [0002] The refrigeration system consists of compressors, condensers, throttling devices and evaporators, which are connected and sealed by metal tubes, and filled with refrigerant inside. The compressors are usually fully enclosed, and the compressor completes the process from suction to exhaust. The process is realized by the operation of the motor. The amount of refrigerant should be appropriate, neither too much nor too little. The reduction of refrigerant will lead to the decline of system performance and the reduction of energy efficiency ratio; if it is reduced more, it may cause damage to the compressor motor, which may eventually cause the motor to burn out, or cause a short circuit between the turns of the motor and the electrification of the compressor she...

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is: to overcome the problem that the prior art cannot conveniently judge whether the refrigerant amount is appropriate when supplementing the refrigerant, and propose a method for judging the rationality of the refrigerant amount

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