Seeking drawings or photos of the flanges used for pressurizing floating-head heat exchangers
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I’m currently designing the pressure testing flanges for floating-head heat exchangers. I’d like to see here how others design the tools used for pressure testing such heat exchangers; it would be great if there were examples that include both text and diagrams, so we can share and discuss them together!
This is a picture of the floating-head heat exchanger under pressure testing
This is the first pressure testing phase; it is necessary to install a pressure testing fixture, and the yellow area in the diagram represents the pressure testing ring
I didn’t upload the pictures in order; please view them from back to front. If you have any questions, feel free to leave a message
I basically get it – it’s about finding a type of sealant to seal the more complex side seam, with a total of two seals.
The pressure testing fixture for floating-head heat exchangers generally consists of three parts: a front pressure ring, a rear pressure ring, and a dummy cap. Needless to say, the front pressure ring is used to connect with the side flange of the tube sheet in order to seal it; the fake cap functions as a way to lengthen the shell, and it is composed of two flanges welded together with a short section. The rear pressure ring connects with the fake cap in order to seal the floating tube sheet.