Refrigerant filling machine and method for carrying out vacuum-pumping, leakage detecting and refrigerant filling by utilizing refrigerant filling machine

Abstract

The invention discloses a refrigerant filling machine, and provides a refrigerant filling machine, which is time-saving and labor-saving in operation, saves manpower and material resources, and integrates multiple functions, and a method for carrying out vacuum-pumping, leakage detecting and refrigerant filling by utilizing the refrigerant filling machine. The refrigerant filling machine solves the technical problems that manual independent operation is needed, an operation process is complex, time and labor are wasted, misoperation is extremely liable to generate, certain potential safety hazards exist and the like in the prior art. The refrigerant filling machine comprises a high-pressure pipeline and a low-pressure pipeline which are correspondingly connected to a high-pressure end and a low-pressure end of a refrigerating system, wherein the other end of the high-pressure pipeline and the other end of the low-pressure pipeline are connected to one end of a valve body pipeline in parallel correspondingly; the other end of the valve body pipeline is connected with a vacuum pipeline and a refrigerant pipeline in parallel; the other end of the vacuum pipeline is connected with a vacuum pump; the other end of the refrigerant pipeline is connected with a refrigerant storage steel cylinder; the refrigerant storage steel cylinder is placed on an electronic scale; solenoid valves capable of controlling on-off of corresponding pipelines are arranged on the pipelines; and the solenoid valves and the electronic scale are connected onto a control system.

Description

Technical field [0001] The invention relates to a refrigerant filling machine, in particular to a refrigerant filling machine that saves time and effort in operation, saves manpower and material resources, and integrates multiple functions and a method for vacuuming, leak detection and refrigerant filling with the equipment. Background technique [0002] Refrigeration systems often need regular cleaning and maintenance. However, if the drying is not thorough after cleaning, a certain amount of water will inevitably remain in the pipes of the refrigeration system. If there is water in the pipes, the throttling mechanism and low pressure of the refrigeration system must be Part of the "ice plug" causes the refrigeration system to fail to work normally. Therefore, before the refrigerant is filled, the refrigeration system is often brought to a vacuum state through a vacuum pump to effectively remove the water in the refrigeration system. Corrosion, loosening and leakage of related p...

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Problems solved by technology

[0003] The present invention mainly provides a refrigerant filling machine that saves time and effort, saves manpower and material resources, and integrates multiple functions and uses the equipment for vacuuming, leak detection and refrigerant filling methods, which solves the problems in the prior art. There are a series of conversion operations that require manual system vacuuming, pressure maintenance and leak detection, and refrigerant charging. Not only does it require high professional proficiency, but the operation process is cumbersome, time-consuming, and labor-intensive. It is also prone to misoperation, and there are certain safety hazards. technical problem

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