Pressure components refer to the basic pressure-bearing units in pressure vessels (including pressure-bearing boilers) divided by geometric shapes.
The main pressure components of the pressure vessel include the cylinder body, the head (end cover), the manhole cover, the manhole flange, the manhole nozzle, the expansion joint, the opening reinforcement ring, the tube sheet, the spherical shell plate of the spherical tank, and the heat exchanger.
Tube sheets and heat exchange tubes, equipment flanges, main bolts of equipment above M36, and nozzles and pipe flanges with a nominal diameter greater than or equal to 250mm.
The strength of such components is directly related to the safety of the pressure vessel.
Once damaged or failed, it will cause great harm. Therefore, there are strict requirements for their material selection, design, manufacture and inspection, which must be issued in accordance with relevant state departments. Norms and standards.
