₦airaland Forum

Speaking of vacuum, what is vacuum? In fact, vacuum is a state of space in which no matter exists, and it is a physical phenomenon. For air conditioners, vacuuming is an indispensable and important process before refrigerant charging during the production, installation and maintenance of air conditioners. The specific method is to connect the vacuum pump to the air conditioning system pipeline to remove the non-condensable gas and moisture in the air conditioning system pipeline.

We all know that the air contains a lot of nitrogen, oxygen, carbon dioxide and other gases, which we usually collectively call non-condensable gases. In addition, the moisture in the air and the refrigerant are not mutually soluble. The presence of moisture and non-condensable gas affects 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 system.

Of course, vacuuming does not refer to 100% vacuuming of all substances in the pipeline. Industrial vacuum refers to a gas space with a pressure lower than a standard atmospheric pressure. It refers to a rare gas state, which can be divided into high vacuum, medium vacuum and low vacuum.

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Rotary Vane Vacuum Pump

The vanes of the rotary vane pump divides the crescent-shaped space enclosed by the rotor, the pump cavity and the two end covers into three parts.

Performance Characteristics

Rotary vane type vacuum pump (referred to as rotary vane pump) is an oil-sealed mechanical vacuum pump. Its working pressure range is 101325~1.33×10-2 (Pa), which belongs to low vacuum pump. It can be used alone or as a backing pump for other high vacuum pumps or ultra-high vacuum pumps.

It has been widely used in the production and scientific research departments for metallurgy, machinery, military industry, electronics, chemical industry, light industry, petroleum, medical and pharmaceutical industry.

Small size, light weight, low noise.

Equipped with a gas ballast valve, which can extract a small amount of water vapor.In the ambient temperature range of 5 degrees Celsius to 40 degrees Celsius, the air inlet pressure is less than 1.3X103 Pa, allowing long-term continuous operation, and the relative humidity of the pumped gas is greater than 90%, the gas ballast valve should be opened.

Equipped with automatic anti-return oil check valve, easy to start.

The air inlet should not be operated continuously for more than one minute without airflow.

It is not suitable for the extraction of gases that are corrosive to metals, chemically react to pump oil, and contain particulate dust, as well as gases that contain too much oxygen, are explosive, and are toxic.