1. When working at a height of more than 2 meters or multilevel cross operation, special personnel shall be assigned to guard or contact with each other, and it is strictly forbidden to command by more than one person.
2. The safety belt must be worn when working at a height of more than 2 meters, and it should be hung high and low. It is forbidden to hang the safety belt on the maintenance objects, on the pipelines and equipment (including electrical) of various dangerous media, and it is forbidden to drag the safety belt on the ground. It is strictly forbidden to use nylon material safety belt in high-temperature area or welding operation, and the flame-retardant and high-temperature resistant safety belt should be selected.
3. If there are high falling objects, the articles should be cleaned up in time, or the falling prevention measures should be added.
4. The safety rope should be lowered from the top of the silo as the hanging point of the safety belt for the high-altitu
In the small air separation unit, when gas or liquid flows through a shrinkage hole or valve in the pipeline, the flow will be hindered, and the fluid will produce vortex collision, friction and other resistance at the shrinkage hole or valve. In order to flow through the shrinkage hole or valve, the resistance must be overcome, showing that there is a pressure difference before and after the shrinkage hole...