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2008-02-18View Original

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What to do in case of a sudden power outage during the polymerization process to produce polyvinyl chloride
Reply #22008-02-18
This emergency issue is stated in too general terms! Can’t answer! Moreover, it involves various aspects such as processes, safety, and equipment, and decisions should be made based on the specific circumstances! I look forward to you providing an overview of the manufacturing processes, equipment, etc., and to advice from those familiar with this industry! This post was last edited by netlover on 2008-2-18 17:37.]
Reply #32008-02-18
In the event of a sudden power or water outage that causes an increase in pressure inside the polymerization reactor, the material contained within the reactor should be immediately transferred to the sedimentation tank. If large-scale venting is necessary, emergency measures must be taken to shut down all fires and evacuate personnel, with someone assigned to monitor and keep watch. Excerpted from the Encyclopedia of Safety Science and Technology (China Labor and Social Security Press, published in June 2003). Generally speaking, enterprises with a high degree of risk should have their own emergency power supply and use dual-circuit power supply:$
Reply #42008-08-06
Unexpected power outages are inevitable, but proper measures can largely prevent serious accidents from occurring. In the event of a power outage, if the polymerization reaction has already entered the chain-growth phase, temperature and pressure rise rapidly, posing a high risk and potentially leading to serious accidents. 1. Critical equipment (such as cooling water pumps and mixing devices) should have a backup power supply, equipped with a UPS (to ensure 30 minutes of power supply). 2. The emergency terminator addition system must be in good condition to ensure it can be injected promptly in case of an abnormal situation. 3. The nitrogen system should be checked regularly to ensure that the pressure is within the required range; (a company in Beijing experienced an explosion due to insufficient nitrogen pressure during a power outage, as nitrogen could not be supplied in time – of course, this was just one of the factors involved). 4. Open the valve of the sedimentation tank promptly, and the pressure can be relieved immediately, thereby gaining time for handling. 5. Emergency plans are crucial.
Reply #52022-11-07
Thanks for sharing, coming in to learn a bit!

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