Abstract:

The flow rate and pressure of the primary leakage gas dropped to zero during the dry gas seal operation of high pressure cylinder of pressurized hydrogen compressor in the reforming unit at SINOPEC Zhenhai Refining and Chemical Company. This paper makes an in-depth analysis on the sealing structure, installation data, static test situation, condition monitoring, process data and other aspects to identify the root causes of the sealing failure and puts forward some corresponding countermeasures, providing theoretical basis and practical experience for preventing similar problems from appearing again.

Key words: dry gas seal')">

dry gas seal, primary leakage, throw-out collar, follow up, air film gap