An integrated device for automatic leak detection and filling of fluorine for high-power air conditioners

Abstract

This application discloses an integrated device for automatic leak detection and filling of fluorine for high-power air conditioners, which belongs to the technical field of high-power vehicle-mounted air conditioners, including nitrogen charging subsystems, vacuum subsystems, energy storage filling and metering subsystems, PLC control subsystem, control computer subsystem; nitrogen charging, pressure maintaining and deflation subsystem, vacuum pumping subsystem, energy storage filling and metering subsystem are connected in sequence, and PLC control subsystem is respectively connected with nitrogen charging, pressure maintaining and deflation subsystem, pumping The vacuum subsystem and the energy storage filling metering subsystem perform signal communication, and the control computer subsystem and the PLC control subsystem are connected through a communication interface. It can automatically complete the work of leak detection and filling Freon with high precision, without the need for personnel to follow the whole process, improve production efficiency and quality, and can automatically record all data, saving manpower and material resources.

Description

technical field [0001] The invention belongs to the technical field of high-power vehicle-mounted air conditioners, and relates to an integrated device for automatic leak detection and filling of fluorine for high-power air conditioners. Background technique [0002] At present, the Freon charging function for high-power vehicle air conditioners is basically performed manually. There are two methods of leak detection, one is the vacuum pumping method, the vacuum pumping operation is performed by manually connecting the pipeline and the vacuum pump, and then the pressure is maintained, and the air leakage is judged by observing the change of the pressure gauge with the human eye; the other is nitrogen filling The pressure maintenance method is to manually connect the nitrogen tank and the booster pump to fill the pipeline with nitrogen, maintain the pressure, and judge whether there is an air leak by observing the change of the pressure value with human eyes. Freon filling m...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the leak detection and fluorine filling of high-power vehicle-mounted air conditioners in related technologies, the efficiency is low through manual operation; all pressure values ​​are observed by human eyes, and the accuracy is low; personnel work at high altitudes, and there are potential safety hazards; the whole process requires personnel monitoring , the problem of wasting manpower and material resources, the present invention provides an integrated device for automatic leak detection and filling of fluorine for high-power air conditioners

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