Polyethylene plant K-4003 Centrifugal compressors The use of mechanical seals, but the total chain compressor parking phenomenon, in view of this situation, Tianjin Petrochemical ethylene plant with great concentration of research, has finally successfully developed a dry gas seal.
Dry gas seal is to make full use of the original space, oil holes, back to back to double-ended seal and spiral groove sealing surface, high pressure nitrogen instead of high pressure seal oil. As the high-pressure nitrogen is supplied directly by the factory air separation unit, the pressure of the gas source is stable. The mechanical sealing surface is non-contact during operation, greatly increasing the sealing life of the sealing machine, changing the influence of external instability on the compressor, ensuring The device is running smoothly.