Specific procedures after pressure vessels reach their designed service life
Thread Content
TSG21-2016 stipulates that if continued use is desired, the entity using the equipment shall commission a special equipment inspection agency with the appropriate qualifications to conduct inspections in accordance with the relevant regulations for periodic inspections; if necessary, a safety assessment (usefulness evaluation) shall be carried out in line with the requirements of Section 8.9 of these regulations. Only after approval by the person in charge of the using entity and subsequent amendment of the registration certificate for use can the equipment continue to be used. The specific steps are as follows: How much longer can it be used if continued to be used? After reaching the design usage stage and passing the inspection, it meets the requirements. The next inspection date is indicated in the inspection report; an application for inspection should be submitted again before that date expires. After simple pressure vessels reach the designed service life, TSG21-2016 stipulates that they should be scrapped; if continued use is intended, the provisions of Article 5 shall apply. Boilers do not have a specified service life; whether to continue using them is determined based on inspection results and the condition of the equipment.
Continuing to use it requires considering cost factors
It seems to be determined based on the safety level, ranging from an inspection every 4 years to one every half year. Equipment that has exceeded its service life is generally downgraded for use or retired after evaluation.