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In the vacuum technology, people connect the evacuated vessels, vacuum pumps, vacuum valves, gas storage tanks, baffles, traps, filters, condensers and various vacuum pipes to form a device that can obtain a certain degree of vacuum and meet the process requirements. This device is called a vacuum pump system. So, how do we use and maintain the vacuum system in practice?

The performance of the vacuum system is determined by the limit vacuum degree and the pumping rate of the system, just like the vacuum pump. In all kinds of vacuum systems, except that the crude vacuum system is composed of only one pump, the other vacuum systems are composed of two or more vacuum pumps.

Before forming the vacuum system, the pump should be selected first. When choosing the vacuum pump main pump which directly empties the container, the problems that should be considered are: the working pressure required by the evacuated container, the nature and quantity of the gas to be pumped, and the economic indexes such as equipment investment and operation cost.

The use and maintenance of vacuum pump system is also very important

1. Have a good working environment.

The indoor temperature is 10 ~ 30 ℃, the relative humidity is not more than 65%, the inlet temperature of cooling water is not more than 25 ℃, and the allowable voltage fluctuation range of power supply is ± 10%.

2. According to the actual situation of the vacuum system, formulate reasonable operating procedures.

When using for the first time, all parts should be scrubbed and baked to check whether the power circuit is normal and whether the power supply voltage meets the requirements. Check whether the components such as mechanical pump, diffusion pump and valve are normal. During the first use, the surface of each component in the vacuum system and the pump oil absorb a lot of water vapor and various gases, so the vacuum degree required may not be reached. At this time, it can be repeated for two or three times and vacuumizing, so that the components and pump oil can be fully degassed. If the vacuum degree is still not up to the requirements during the third pumping, it means that the system may be leaking.