Aging and corrosion of pipelines may lead to pipeline bursting, high-pressure wind and water damage; Preventive measures: check frequently and replace in time.
Failure to close the superior valve during maintenance may cause the valve or equipment to open by mistake and cause personal injury; Precautionary measures: hang up the card when stopping the machine and stopping the liquid to remind other personnel. After the pipeline maintenance is completed, carefully check whether the U-shaped card installation at the joint is standardized and up to standard.
Failure to release the pressure when pinching the pipeline may lead to the gushing of geomantic water and injury to personnel; Precautions: release the pressure before clamping the pipeline.
The pressure gauge is not installed in a specific and important place or fails, which may lead to failure to observe the pressure situation, pipe burst or undervoltage; Precautionary measures: install pressure gauge or replace or repair it in time.
When removing the screw, the wrench does not clamp the bolt firmly, which may easily cause people to slip and get injured; Precautions: When removing the bolt, the wrench shall be clamped, and the personnel shall stand firm, and gradually increase the pressure in the positive direction.
No good lifting point can be found when the chain is inverted, which may cause the hanging object to fall unsteadily and hurt people; Note: Check the guide chain.