Opening and connection of pressure vessel
In order to enable the equipment to carry out normal operation, testing, and maintenance, the shell and head of the pressure vessel must generally have holes. Such as material import and export; connection holes for measuring pressure, temperature and installation of safety devices; liquid level gauge holes, manholes and hand holes, etc.
1. Take over the connection with the shell
The connection between the pipe and the shell is welded.
2. Take over the connection type with the outside
There are generally three types of interfaces for connecting pipes and external connections: threaded short pipe type, flange short pipe type and flat flange type.
3. Hole reinforcement
After the opening of the container shell, the discontinuity of the shell structure was caused, which caused stress concentration, which increased the local stress at the edge of the opening several times. In order to reduce the local stress at the edge of the opening, the opening part of the shell needs to be reinforced. There are two methods of opening reinforcement: local reinforcement and overall reinforcement.
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On the morning of July 16, 2024, the quality manager and purchasing manager of Hyundai Rotem came to TANK to conduct full-scale inspection, MT test and pressure test witness for the four ASME gas storage tanks in the trial order. Hyundai's quality manager is very serious in checking details, and both of them are satisfied with TANK's process control and other aspects. The photo shows QC performing MT on the weld -
Recently, after five days of strict review by Lloyd's (LRQA) evaluation teacher, Zhejiang Tec Pressure Vessel Co., Ltd. successfully passed the ISO9001:2015 and PED H/H1 certification review. The acquisition of these two certificates marks that the company has reached a new stage on the road of globalization.
