The load on the endpoints or nozzles in C2 is very high; how to deal with this?
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The load on the endpoints or nozzles in C2 is very high; how should this be handled? Change the pipeline direction to increase flexibility? Adjust the bracket?
The main thing is to appropriately increase flexibility.
With limited space, are there any other measures besides using flexibility?
There are only a few methods in total: 1. Change the pipeline direction to increase flexibility. 2. Adjust the position of the supports, placing fixed supports near the endpoints or pipe openings to reduce the additional forces at those points. 3. Use expansion joints to absorb displacement at the ends (to save space). 4. Enhance the strength of the endpoints and pipe openings
Some pipe openings experience relatively large additional displacements; if fixed supports are used, secondary stresses will inevitably be very high. Are there any regulations and standards regarding the allowable load on the pipe outlet? Such as containers, aluminum plate-fin heat exchangers, etc
The last edit to this post was made by coco2 on 2015-7-30 at 10:33. The thrust exerted by pipes on the device nozzles is generally specified by the equipment manufacturer; when the manufacturer does not provide such data, the following rules apply: For pressure vessels, the calculation methods WRC-107 or WRC-297 provided by the CAESARii program are used. If your organization is large, there are usually unified regulations for stress calculations, which also specify the forces acting on the nozzles
If the medium and temperature/pressure conditions permit, expansion joints or metal hoses can be considered.
The best approach is still to change the direction of the pipeline; modifying the supports provides only limited improvement, and it’s not practical to add expansion joints inside the cold box. Personally, I think it’s better to get regularized sooner.
The load at the tube ends of plate heat exchangers is very high; manufacturers do not provide allowable loads. If one wants to calculate the local stress at these tube ends, should WRC107/297 be used? Are the tube ends of heat exchangers considered to be part of the head or of the shell?
No one has ever done it. The pipes coming out of the plate-type nozzles have relatively good flexibility, right? Do you plan to make any improvements?
No, I just think that at low temperatures the fixing points of the large pipelines exert a high load on the pipe ends. Actually, it’s mainly due to the lack of flexibility; after all, the space is limited