How should the sealing of equipment under normal pressure be designed? !
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Design a dust collector with positive pressure, around 1 KPa. The dust collector is relatively large, as it needs to draw in the fabric bags, so it must have a large opening at the top. Sealing such large openings is quite difficult. It is generally sealed with rubber gaskets, and the result is usually satisfactory since the pressure is low; however, if the gap is large, air leakage is inevitable. Is such a seal secured with bolts or clips? Is there a better and more practical way?
I don’t know what your structure looks like. For atmospheric pressure vessels, we usually use angle steel flanges for sealing, and sometimes equipment flanges as well.
Is it only 1 kPa? Using a liquid seal should work, right?
We generally use rubber pads + steel sections + bolts for sealing.
It’s quite troublesome to install and remove the bolts; there are just too many of them!
Generally, the feed inlet requires good sealing; it is best to use steel flanges along with rubber gaskets between the bolts for sealing, as poor sealing at the feed inlet can lead to difficulties in pumping. The sealing at the discharge outlet is rather casual; a buckle should work fine. I’ve also seen cases where, between two steel flanges, nothing was used at all – bolts were simply used to hold them together.