Self-priming long hose anti-virus protection high-risk operation safety

On the afternoon of May 27th, Anqing Petrochemical cracking plant refined positions in the highly dangerous area of ​​hydrogen sulfide, online replacement of liquid level meter of the top of the regeneration tank. Due to the prevention of the whole process of on-site operations, production safety is ensured.

Recently, the top level of the return tank glass plate in the regeneration tower was black in color, and the liquid level could not be seen clearly. On that day, the ministry arranged maintenance personnel to replace the gauge. The medium in the reflux tank at the top of the regeneration tower is acidic water, containing 50% of hydrogen sulfide, and the acid gas flowing from the top of the tank. The main component is also hydrogen sulfide gas. When the hydrogen sulfide concentration is too high, it can poison people and even kill them by lightning. Hydrogen sulfide is a high-risk toxic and harmful substance.

The top return tank of the regeneration tower is the most concentrated container for hydrogen sulfide, and it is the most critical danger point of the installation, and the operation risk is high. Everyone's "safety string" immediately tightened. “In order to prevent bursts of hydrogen sulfide from leaking and causing safety accidents, the equipment safety officer, process equipment technicians, and post personnel all have to go to the scene to replace the liquid level timing. I will also attend the job monitoring throughout the entire process.” The head of the Bi group arranged for the work to be named.

As for the high-risk operation of hydrogen sulfide on site, the Department’s strict management requires detailed requirements to ensure that every working link is absolutely safe. After succession, with the cooperation of everyone, the on-site H2S2 analysis, the risk-level identification, and the safety of the operation were completed, and the safety precautions before the operation were implemented one by one.

Two self-priming long hose gas masks were also put on the platform. Everyone was busy pulling apart the 15-meter-long hose and putting the air tube on the upper air outlet. The maintenance master put on a long hose gas mask and began to replace the level gauge. Three hydrogen sulfide alarms were placed in different positions and detected throughout the entire process. Nearly 10 guardians stood on the upwind side, expecting a sudden accident of hydrogen sulfide abruptly. “Precautionary measures are in place. Although high-concentration hydrogen sulfide tank containers are within easy reach, we are not afraid.” During the operation, everyone was guarded with care. None of them were deserters, and they all stood at the forefront of danger.

Nearly an hour later, with the efforts of everyone, the online operation of the Hazard Hazard Point ended safely.

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