A control method for the vacuum degree of an assembly line production air conditioner

Abstract

The invention relates to a vacuum degree control method for producing an air-conditioner on an assembly line. The air-conditioner can be connected with a vacuum pumping device. The vacuum pumping device is provided with a joint and is further connected with the air-conditioner through the joint. By means of the vacuum degree control method for producing the air-conditioner on the assembly line, the vacuum degree of the air-conditioner can be better controlled, and reliability is high; meanwhile, a stopper is arranged on a line body of the assembly line, the air-conditioner can only be permitted under the condition that the vacuum degree of the air-conditioner is qualified, and manual intervention is reduced and even avoided; and in addition, the actual time of duration during which the air-conditioner system pressure value is lower than a set control vacuum pressure value can be adjusted according to the size of a heat exchanger in the air-conditioner, and thus the vacuum pumping efficiency is improved.

Description

technical field [0001] The invention relates to the field of air conditioners, in particular to a method for controlling the vacuum degree of an assembly line produced air conditioner. Background technique [0002] Air conditioners are indispensable electrical equipment in people's daily life. During the production of air conditioners on the assembly line, it is necessary to vacuumize the air conditioner. Since the air contains a large amount of nitrogen, oxygen, carbon dioxide and other gases, these gases can be dissolved to Refrigerants are generally referred to as non-condensable gases. In addition, the moisture in the air and the refrigerant cannot be miscible, and the existence of moisture and non-condensable gas will affect the operation effect of the air conditioner, so the purpose of vacuuming is to remove the non-condensable gas and moisture in the air conditioner, so , The vacuum degree of the air conditioning system has a great influence on the performance of the...

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Problems solved by technology

In addition, the moisture in the air and the refrigerant cannot be miscible, and the existence of moisture and non-condensable gas will affect the operation effect of the air conditioner, so the purpose of vacuuming is to remove the non-condensable gas and moisture in the air conditioner, so , the vacuum degree of the air conditioning system has a great influence on the performance of the unit

[0003] For example, the Chinese invention patent application with the patent number CN201610569801.9 (the application publication number is CN106152410A) "Air Conditioner Control Device, Control Method and Air Conditioner", the air conditioner control method includes setting the predetermined vacuum pressure value in the air conditioner pipeline, collecting the air conditioner The real-time pressure value in the pipeline, and compare the collected real-time pressure value in the pipeline with the preset predetermined vacuum pressure value, when the collected real-time pressure value in the pipeline is less than or equal to the predetermined vacuum pressure value , to allow follow-up operations on the air conditioner, that is, to control the vacuum degree below the set value. The problem is that the process is not easy to control. Floating, the actual pressure value in the pipeline is higher than the predetermined vacuum pressure value, and the vacuum degree does not meet the qualified requirements, but when the real-time pressure in the pipeline collected by accident is lower than the predetermined vacuum pressure value, it is considered that the vacuum degree of the air conditioner is qualified and will The reliability of the air conditioner has brought hidden dangers

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