What is blind plug?

Blind plate plugging operation refers to the process of equipment emergency repair, maintenance and equipment start-up and shutdown. When there may be materials (gas, liquid and solid) in equipment and pipelines and under certain temperature and pressure conditions, it is impossible to completely cut them off with valves. At this time, it is necessary to block the blind plate.

What are the safety requirements for blind plate plugging operation?

1, the blind plate pumping and blocking operation shall be managed by the work permit, and the blind plate pumping and blocking safety work permit shall be handled before the operation. ?

2. Operators of blind plate plugging shall receive safety education and special safety training, and pass the examination. ?

3. The production workshop should draw the position map of the blind plate in advance, number it uniformly, and designate a special person to be responsible. The blind plate pumping and plugging operation device shall be operated according to the drawings.

4. Operators should identify the harmful factors in the working environment on site and formulate corresponding safety measures.

5. Blind flange pumping and blocking operation shall be supervised by special personnel, and the guardian shall not leave the job site. ?

6. Emergency plans should be made for blind plate pumping and plugging operations in places with complex operations and high risks. ?

7. When blind plate pumping and plugging operations are carried out on pipelines and equipment containing toxic media, the system pressure should be reduced as much as possible, and operators should wear appropriate protective articles. ?

8. When plugging the blind plate in inflammable and explosive places, the operator should wear anti-static work clothes and work shoes; There shall be no hot work within 30 meters of the work site; Explosion-proof lamps should be used for work lighting; Explosion-proof tools should be used during operation, and it is forbidden to knock pipes and flanges with iron tools. ?

9, in the pipeline with strong corrosive medium, equipment, blind plate, homework personnel should take measures to prevent acid and alkali burns.

10. When the medium temperature is high, it may cause burns to the operators, and the operators should take measures to prevent burns.

1 1, and the plugging operation of blind plates at heights shall also comply with the relevant provisions of the Code for Safe Operation at Heights. ?

12, two or more blind plates shall not be blocked on the same pipeline at the same time. ?

13. When drawing and blocking the blind plate, the production workshop shall assign special personnel to command the operation in a unified way according to the position map and number of the blind plate, and confirm them one by one, and make records. ?

14. Each blind plate shall be marked with a sign, and the number of the sign shall be consistent with the number of the blind plate on the position map of the blind plate. ?

15. After the operation, the blind plate plugging operation unit and the production workshop shall jointly confirm.

References:

Blind Plate _ Baidu Encyclopedia