Is it necessary to enter the pressure vessel for the annual inspection? What about regular inspections? You have to go into each one; isn’t that very troublesome?
Thread Content
Is it necessary to enter the pressure vessel for the annual inspection? What about regular inspections? You have to go into each one; isn’t that very troublesome?
Annual and periodic inspections of pressure vessels usually require the interior of the vessel to be cleaned before inspection can take place. Each pressure vessel needs to be inspected in order to ensure its safety and reliability, as well as to comply with relevant safety standards and regulations. Although this process may be a bit troublesome, it is a necessary step to ensure the safety of personnel and equipment. .
It depends on the inspection items; for annual inspections, it is not necessary to put the device into a tank. Annual inspections are actually part of regular inspections and can be considered online inspections, with the main purpose of detecting problems that may arise during operation. In principle, regular inspections should be carried out by putting the item inside a tank or using instruments such as endoscopes; this is indeed very troublesome, and in most cases it’s not possible to do so – only visual inspection of the exposed parts inside the tank can be conducted.
TSG 21-2016, “Safety Technical Inspection Regulations for Stationary Pressure Vessels”, stipulates the requirements regarding periodic inspections and annual inspections. At 7.1.52 and 7.1.6 respectively. An annual inspection certainly does not require access to the interior, as refineries typically have a major maintenance interval of 3 years, with continuous operation requiring at least 2 years, whereas annual inspections need to be carried out every year.
The annual inspection refers to the examination of the operating condition: a macroscopic inspection of the equipment, the certification status of the personnel, safety accessories, and operating records； Regular inspection refers to a comprehensive inspection carried out when the equipment is shut down; it involves mainly visual inspections as well as various non-destructive testing methods. The inspection can be performed on the outside of the equipment, inside it, or on both the inside and outside.
If you find it troublesome, you actually don’t have to use it; just like if you think it’s a hassle to open your mouth while eating, you can choose not to eat. Laws and regulations only set requirements; it’s another matter if you fail to meet them.