Remote equipment monitoring

The forced valve is opened and closed by the air source pressure pushing the piston. Its faults include the faults in the cylinder and the valve body. The faults in the cylinder are mainly caused by the slow switching action, the valve is not easy to open or close badly. This is caused by low gas source pressure, dirty gas source or excessive pipeline resistance. It is also possible that the piston ring is worn and the amount of lubricating oil is too small, which causes air leakage of the piston. When the sealing packing is too tight, it will also cause the phenomenon of slow movement. In order to prevent air leakage, in addition to checking whether the seal is in good condition frequently during overhaul, you should also pay attention to keeping enough lubricating oil in the cylinder. Rust on the inner wall of the cylinder or foreign matters entering may also cause the phenomenon of jam, causing the forced valve not to move. The main failure in the valve body is the phenomenon tha...

In the commissioning process of argon production system of new air separation plant, due to unstable gas demand and other reasons, the working condition of argon production system is easy to be fluctuated. The following is the analysis and treatment of common faults. 1. The nitrogen content in argon fraction increased Due to the small extraction amount of nitrogen products and crude nitrogen products, part of nitrogen enters into the argon production system along with argon fraction, resulting in the increase of nitrogen content in argon fraction. As a result, the temperature difference between oxygen enriched liquid air and crude argon in crude argon condenser is reduced, and normal heat exchange cannot be conducted. Finally, the crude argon cannot be condensed and the oxygen enriched liquid air cannot be evaporated. During the adjustment, the extraction amount of crude nitrogen and nitrogen is provided to reduce the outlet pressure of crude nitrogen to maintain normal operation c