Dear sea friends, a discussion on the issue of shutting down the high-pressure heat exchanger in hydrogenation units for water flushing.
Thread Content
Hello, dear colleagues: I would like to ask you all that due to the formation of salts from ammonium chloride, high-pressure heat exchangers tend to experience a reduction in their heat exchange efficiency. The situation improves significantly after each major maintenance session during which the exchangers are cleaned, and the energy consumption of the facility also drops considerably! During minor maintenance of the unit, it is not possible to open the high-pressure heat exchanger for cleaning due to time constraints; what do people do during these shutdown periods? Has anyone stopped operations and used large amounts of demineralized water for soaking or flushing by means of injection? Are there any specific methods you can share with everyone? Thank you!
Is the intermittent water injection process not set up?
Yes, it is rinsed regularly, but the effect after rinsing during normal production is not as good as that after stopping production for cleaning.