Case study on the maintenance of electrostatic precipitators in chemical production

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On a certain date in a certain month of a certain year, the electrostatic precipitator was inspected; after purging and replacement were completed successfully, the electrician obtained the repair work order before entering the electrostatic precipitator to carry out the repairs. Two hours later, the shift supervisor informed the worker on duty that if repairs were not possible, he should rinse it with hot ammonia water. The worker took a quick look at the electrostatic precipitator and believed that no one was working there, so he opened the valve for draining liquid from the electrostatic precipitator; this caused gas to flow back into the device. The alarm installed in the electrostatic precipitator, which was being used by an electrician who was performing maintenance there, went off immediately, and the two people quickly left the area. Cause analysis: 1. The staff member in question lacked a sense of responsibility, failed to provide proper supervision, did not fulfill their duties properly, and was unaware of the status of the maintenance work. 2. The work tickets prepared by the electricians are not standardized, and safety measures are inadequate. 3. The shift leader fails to conduct thorough inspections and reviews, being careless and negligent.