The pressure vessel factory is used for industrial production. There is a lot of pressure inside the pressure vessel. The heavy oil catalytic cracking device must prevent accidents during use. Let's take a look at how to prevent it.

1. In the design, a reasonable structure should be adopted, such as a full penetration structure, which can expand freely, etc., to avoid stress concentration and geometric mutation; according to the working conditions of the equipment, materials with better plasticity and toughness should be selected; strength calculation and safety Valve displacement calculations are standard.

2. When manufacturing, repairing, installing, and transforming, strengthen welding management, improve welding quality, and conduct heat treatment and flaw detection according to specifications; strengthen material management, and avoid using defective materials or using wrong steel and welding materials.

3. During the use of the boiler, strengthen the operation management of the boiler to ensure that the safety accessories and protection devices are flexible and complete: strengthen the water quality management, prevent corrosion, scaling, and the relative alkalinity is too high; improve the quality of the boiler workers, prevent water shortage, Misjudgment, misoperation, etc.

4. In the use of liquefied gas tankers, strengthen the use management to avoid operation errors, over-temperature, over-pressure, over-load operation, loss of inspection, disrepair, failure of safety devices, etc.

5. Strengthen inspection work, find defects in time and take effective measures.