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置换动火常见于各种燃料容器(如桶、箱、罐等)与管道的焊补动火。其特点为任务急、时间紧且处于易燃易爆中毒状态中,为确保检修安全,需制定严格的安全措施。 1、安全隔离。燃料容器、管道停工后,应迅速插盲板隔离需焊补的容器管道,在厂区和车间内固定动火区。 2、严格控制可燃物的含量。隔离后用蒸汽蒸煮,充入置换介质(如氮气、水蒸汽等)吹净容器内的可燃物、毒性物。
Replacement fire is common in a variety of fuel containers (such as barrels, boxes, cans, etc.) and pipe welding complement. Its characteristics are urgent tasks, time is tight and in a state of flammable and explosive poisoning, in order to ensure the safety inspection, the need to develop strict safety measures. 1, safe isolation. After the fuel containers and pipelines are shut down, they should be quickly inserted into the blind plate to separate the vessel pipes to be welded and fixed the fire area in the factory area and in the workshop. 2, strict control of combustibles content. Isolation with steam cooking, filled with replacement medium (such as nitrogen, water vapor, etc.) blowing the container of combustibles, toxic substances.