What are the causes of vacuum pump pumping?
Release time:
2023-07-05 17:35
Source:
1. Pump type and performance: different types of vacuum pumps have different pumping capacities. Common types of vacuum pumps include rotary vane pumps, centrifugal pumps, adsorption pumps, etc. Different types of pumps are suitable for different pumping occasions, and their pumping capacity is also different.
2. The working state and operating parameters of the pump: The working state of the vacuum pump includes the pump speed, pressure difference, temperature, etc. These working conditions will affect the pumping capacity of the pump. For example, the higher the speed of the pump, the greater the pumping capacity; the greater the pressure difference, the greater the pumping capacity.
3. Pump sealing performance: The sealing performance of the vacuum pump directly affects the pumping capacity of the pump. The better the sealing performance of the pump, the greater the pumping capacity of the pump. Therefore, the material, manufacturing process and assembly method of the seal of the pump will affect the pumping capacity of the pump.
4. Cleanliness of the pump: The cleanliness of the pump directly affects the pumping capacity of the pump. If there are impurities or dirt inside the pump, it will reduce the pumping capacity of the pump. Therefore, cleaning the inside of the pump regularly is one of the important measures to maintain the pumping capacity of the pump.
5. The state of the pumped container: The state of the pumped container will also affect the pumping capacity of the vacuum pump. If there is a large amount of gas, liquid or solid inside the pumping container, the pumping capacity of the pump will be reduced. Therefore, keeping the container to be pumped clean and clean is one of the important measures to maintain the pumping capacity of the pump.
6. The use time and maintenance of the pump: The longer the use time of the vacuum pump, the more serious the wear of its internal parts and the lower the pumping capacity. Therefore, regular inspection and replacement of pump parts is one of the important measures to maintain the pumping capacity of the pump.
7. Ambient temperature and humidity: Ambient temperature and humidity also have a certain influence on the pumping capacity of the vacuum pump. Under normal circumstances, the higher the ambient temperature, the lower the pumping capacity of the pump; the greater the ambient humidity, the lower the pumping capacity of the pump.
8. Gas characteristics: The nature of the pumped gas will also affect the pumping capacity of the vacuum pump. For example, gases with a larger molecular weight are more difficult to extract than gases with a smaller molecular weight. In addition, in the presence of a highly compressible gas, its pumping ability may also be affected.
and above are some common causes of changes in vacuum pump pumping capacity. In actual use, it is necessary to comprehensively consider these factors, select the appropriate vacuum pump, and take corresponding maintenance and management measures to ensure the normal operation of the pump and the best pumping effect.
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Vacuum pump pumping volume refers to the amount of gas pumped by the vacuum pump from the pumped container per unit time, which is affected by many factors. The following are some of the reasons that lead to changes in the pumping capacity of vacuum pumps
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