Air separation plant accessory factory

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...

With the continuous development of social economy and science and technology, the production scale of air separation equipment is getting larger. As an important part of the whole air separation equipment, automatic control system develops from the original instrument control system to PLC automatic control system, then develops to the DCS, CCS, SLS and AMS control systems which widely used nowadays. With the improvement of social awareness of energy and environmental protection, the advanced control system is used to realize the optimization of air separation equipment, and the control technology of automatic load changing to realize energy saving and consumption reduction is also emerged.