The CPVC pipeline for the three-in-one hydrochloric acid furnace exhaust gases was burned through
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After normal heating for 1 hour, the CPVC pipe in the exhaust system of the three-in-one hydrochloric acid furnace caught fire and was burned through. Apart from an excess of hydrogen, what other factors could have caused the fire?
An excess of hydrogen is not the main problem; an excess is necessary under normal conditions, otherwise how could this process be feasible. “The “relative” load is too high, resulting in a flame that is too long. For example, a load exceeding the designed level, equipment capacity falling short of the design requirements, or insufficient cooling water flow are all cases of relatively high load ；
It is possible that there is an excess of hydrogen, and pVc generates static electricity as a result
The classic analysis upstairs is still quite accurate
This post was last edited by swl on 2017-4-14 at 13:26. The original poster should clearly describe the relevant circumstances so that other users can help analyze the cause further. The problem should be described from three aspects: 1. A brief process diagram showing the location of the ignition point； 2. There is a brief background on how the accident occurred; under what circumstances did it happen? Have there been any changes in external conditions at this time (chlorine pressure, hydrogen pressure and the corresponding purity of hydrogen chloride, water absorption flow rate, etc.)? 3. How did you analyze and determine that accident?
The root cause is static electricity; change the tube material, or use steam
Metals will not experience frictional static electricity; it’s best to use steam for cleaning. Our factory was struck by lightning and caught fire once; in the end, we used steam to clean it up – we just needed to vent the air and then use the steam for cleaning