Matters needing attention in the installation of vacuum system

After the design and selection of the vacuum system equipment, it finally entered the installation stage. Although there are layers of leak detection and other work checks, but still need to do some preparatory work and precautions in this link 

Before the installation of vacuum pump and vacuum system, all kinds of parts should be cleaned to remove the impurities such as oil, dirt, welding flux, etc. during the processing and storage of the parts, so as to prevent the formation of air source inside the vacuum system after the installation. The common method is to use decontamination powder and wash with hot water, and finally blow dry with hot air and wipe with organic solvent.

The second is the leak detection of parts before the device. In front of the device, the leakage of the local parts of the vacuum pump and the air system shall be checked, and the parts with leakage holes shall be removed in time to prevent the parts with leakage holes from being assembled on the vacuum system, which will bring unnecessary trouble for the later debugging.

Third, check whether the performance of vacuum valve and other components can meet the design requirements.

Fourth, according to the electrical diagram, check whether the circuit is in good condition, whether the switch can point to the open circuit position, whether the relevant test instrument can be in the zero position, whether the ground wire can be grounded, whether the operation is safe, etc.

Fifth, leak detection in the process of vacuum system installation. The leak detection of vacuum system in the process of device debugging is the main part of vacuum leak detection. Therefore, the device process must be separated from leak detection. If multiple vacuum pumps are installed in series on site, the mechanical pump should be installed and pumped first, and then the main pump should be installed after reaching the vacuum degree, instead of stopping leak detection after all the installation of the system is completed. Otherwise, once there is air leakage, it will bring trouble to the device. At the same time, pay attention to whether there are scratches on the rubber ring and flange sealing surface at the static sealing flange to prevent air leakage after installation. After the vacuum system device is completed, the no-load commissioning and the commissioning in the process of process consumption will be stopped.


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