Application and Operation and Maintenance Strategy of Heavy Oil Hydrogenation Thread Locking Ring Heat Exchanger
The high pressure heat exchanger is one of the core equipment of the heavy oil hydrocracking unit,and the screw lock ring high pressure heat exchanger is the most widely used in this unit.The diameter above φ1 600 mm is a large diameter high-pressure heat exchanger,which has experienced internal leakage in some domestic oil refining units.The reason is mainly caused by the difference between the expansion of the inner part and the shell.It is necessary to upgrade the gasket and do a good job in maintenance control to ensure that the high pressure thread locking ring heat exchanger does not have internal leakage.
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