The correct way to test pressure vessels

1. External inspection

Also known as in-operation inspection, the specific contents of the inspection include: whether the surface of the equipment has abnormal conditions such as cracks, deformation, leakage, and local overheating; whether the accessories are complete, flexible, and reliable; whether the tightened anchor bolts are intact, All tightened; basically whether there are any abnormalities such as downward movement, skew and damage to the anti-corrosion layer. The external inspection is not only the work of the inspectors, but also the daily inspection items of the operators. If serious hazards (such as cracks, deformations, serious leakage, etc.) are found in the stressed components, the operation should be stopped and the relevant personnel should be reported in time.

2. External environment detection

The inspection of the external environment of the pressure vessel must be carried out after the vehicle is parked and the interior of the vessel is cleaned. The specific content of the inspection includes not only all the contents of the external inspection, but also the corrosion damage of the inner and outer layers; use human eyes and a high-magnification magnifying glass to check whether there are cracks in the entire welding, stainless steel head joint area and other stress positions, and select when necessary Ultrasonic or radiographic flaw detection inspection of welding internal quality; accurate measurement of wall thickness.