Container final assembly
Thread Content
What is the sequence for the overall assembly of the container: should the assembly of the tube sections be done first, or should the heads be assembled to the tube sections first (why)?； What about the takeover and manholes?
The closure for the cylinder section depends on the circumstances; as long as the quality is maintained, it can be installed in whatever way is most convenient and effective, with no restrictions. Takeover and manholes are generally installed last; it’s just my personal opinion, for mutual discussion
First, the head and the cylinder should be welded together, followed by the welding of the cylinders themselves; the nozzles and manholes are installed last
It depends on the equipment structure and factory conditions
What was said on the second floor is correct – the manholes and connections should be assembled after the cylinder body has been welded together
Large openings or manholes are generally welded last; welding them first could cause deformation of the cylinder, leading to problems with the fitting of the end caps, as the cylinder is designed to fit together with those end caps!
Generally, the end cap is joined to one section of the cylinder first, the remaining cylinder sections are joined together to form a whole, and then the end cap is joined finally; this facilitates access for personnel to carry out construction work and inspections. Making the holes is the last step to be done.
There are no fixed restrictions; it is entirely determined by the type of equipment structure, each factory’s own production conditions, and the welding skills of the workers. As long as all products pass the final inspection and have all the necessary documents, they can be shipped out with confidence.
First, the head and the cylinder should be welded together, followed by the welding of the cylinders themselves; the nozzles and manholes are installed last
The poster will understand once they go around the workshop. Generally, fittings on the head are installed before the head and the shell are assembled, and there is no fixed pattern for the other steps; the main focus is to meet the production requirements.
There’s no fixed order for this; it has to be determined based on the actual circumstances. In the riveting workshop, the installation method should be chosen in such a way that it facilitates assembly, inspection, and heat treatment – all factors need to be taken into consideration. The same goes for access manholes; the installation orientation and alignment with reference dimensions also need to be considered. As long as you can ensure that the installation meets the requirements of the drawings and relevant standards, then it’s up to you to decide how to carry out the installation. Why worry about too many details? In a workshop, following every rule to the letter is the worst thing that can happen