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Jiangyin Elm Vacuum Equipment Co., Ltd
The principle and application of slide valve vacuum pump
Date: 2024-05-21Read: 0
A slide valve vacuum pump is a common vacuum equipment that mainly controls the flow of gas in and out through the switch of the slide valve, thereby achieving vacuum extraction.
A slide valve vacuum pump is a vacuum pump that uses the opening and closing of a sliding valve to control the inflow and outflow of gas. Its working principle is as follows:
1. Air enters the pump body
Air enters the pump body through the inlet of the pump. When air enters the pump body, the sliding valve will close, preventing gas from flowing out from the inside of the pump body.
2. Compressed gas
Subsequently, the gas is compressed, resulting in a decrease in pressure inside the pump body. When the pressure is lower than the external pressure, gas will be sucked into the pump body.
3. Open the sliding valve
When gas is drawn into the pump body, the slide valve will open, allowing gas to flow out of the pump body. In this way, the pressure inside the pump body will rise again.
4. Cycle back and forth
The above process continues in a loop until the pressure inside the pump body reaches the required vacuum level.
Sliding valve vacuum pumps are widely used in many fields. The following are several typical application areas of slide valve vacuum pumps:
1. Laboratory research: A vacuum system commonly used in laboratory environments to provide the low or high vacuum environment required for laboratory equipment, such as electron microscopes, mass spectrometers, etc.
2. Semiconductor manufacturing: In the semiconductor industry, it is used for cleaning and extracting gases to ensure a clean and stable production environment. They can be used for processes such as depositing thin films, ion implantation, etching, etc.
3. Chemical industry: Used in the chemical industry to process various gases, liquids, and solids, including processes such as vacuum distillation, extraction, drying, and concentration.
4. Vacuum packaging: It can be used in the field of food and pharmaceutical packaging to extend the shelf life of products and prevent oxidation and microbial contamination by extracting air from the packaging container.
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