Why is a check valve installed at the outlet of the working fluid separator in a water ring vacuum pump?
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Dear teachers: In accordance with the requirements of clause 6.1.7.2 of the \"Technical Specifications for Liquid Ring Vacuum Pumps and Compressors in the Petrochemical Industry\" (SH/T 3162-2011), a check valve should be installed at the gas outlet of the working fluid separator. Why is a check valve installed at the outlet of the working fluid separator in a liquid ring vacuum pump? What is its function?
A check valve is installed to prevent gas from flowing back into the system through the outlet when the vacuum pump stops operating, which could lead to a decrease in vacuum level or contamination; it also prevents the working fluid from flowing back into the pump chamber. This ensures the proper operation of the system and the stability of the vacuum state. .
Prevent sudden failure of the vacuum pump, which could lead to gas flowing back into the system
After the pump is stopped, negative pressure exists inside the pump and in the container being pumped; without a check valve, the working fluid will be drawn back in.