The major maintenance of the pressure vessel includes the items
Major maintenance of pressure vessel is refers to the main pressure parts replacement, orthopaedic, dig, and made of the pressure vessel shell butt welding longitudinal joint, cylinder and cylinder (head) of the connection ring joint, and the head butt joint of spliced joint seam welding repair. According to the TSG R0004-2009 "Fixed pressure vessel safety technical supervision procedure >
Replace or repair the sealing element Stop repair or replace Eliminate vibration or stop processing The container is overheating and running cold 1 the thermal layer is damaged 2 drift Processing: 1 fix the heat layer 2 adjust Abnormal vibration, sound The 1 container has resonance or cavitation It's not working properly The firmware is loose Processing: Find out the reason and eliminate the resonance and cavitation Adjust operation, return to normal 3. Tighten
(1) dispatching orders issued by the production command system; (2) the period of temperature, pressure, flow, time, quantity and clearance of various materials in and out of the container; (3) the actual operating conditions of the vessel; (4) the contents of the operation during the operation; (5) the operation tools and the records are complete and complete.
