Why is it necessary to stop the lubricating oil pump before stopping the nitrogen seal after shutting down the reforming cycle hydrogen compressor?
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Why is it necessary to stop the lubricating oil pump before stopping the nitrogen seal after shutting down the reforming cycle hydrogen compressor?
By nitrogen seal, you probably mean a dry gas seal. The lubricant is stopped first to prevent the lubricant from contaminating the sealing surfaces
Try stopping the nitrogen supply first – what is the purpose of the nitrogen seal?
It refers to the nitrogen gas used as a barrier between the dry gas seal and the bearings, which serves to prevent lubricant from leaking and contaminating the secondary sealing surface. This isolated nitrogen flow also needs to be turned on before starting the oil station.
To prevent lubricant from contaminating the sealing surfaces, start with the dry gas seal before turning on the oil pump. Shut down the oil pump, and then shut down the dry gas seal.