High-pressure heater Wood-sealed manhole
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I have been given a design task involving high-pressure heaters whose manholes are to be sealed with wood; I am looking for information on this topic. Anyone who can provide it would be greatly appreciated.
Wood sealing, also known as tetragonal ring self-sealing, consists mainly of a top cover, preload bolts, support rings, tetragonal rings, tensioning bolts, and sealing rings. It is widely used in high-pressure heaters. Its sealing mechanism relies on the contact between the conical surface of the sealing ring housing and the convex surface of the floating top cover, with preload being achieved through the preload bolts. When in operation, the medium pressure is transmitted to the sealing ring through the floating cover, thereby creating a self-tightening effect. The quadrilateral ring is detachable; it consists of four parts (hence the name quadrilateral ring) and is connected by bolts. A bevel is created between the quadrilateral ring and the sealing ring, allowing for greater tightening as pressure is applied. The three sides of the sealing ring are angled, creating the prerequisite for self-tightening. Since the top cover can move freely, it maintains good sealing performance even when there are fluctuations in temperature and pressure, and it also has a self-tightening effect.
How is the diameter of the sealing contact circle in wood seals determined?
The working principle is relatively easy to understand; I don’t yet have any experience in the specific design aspect. I’m not clear about several parameters in GB150. Here, I’ll still give it a try; hoping an expert can provide an answer.
I have custom calculations; feel free to message me on Q! 251776793
251776793 is my QQ number. Could you share the wood calculation table?
Could you share one with me? 574481593
150 is very detailed; it’s best to use a soft pad for sealing. I’ve used steel pads before, and the results weren’t good
I took a close look at the Wood seal: aside from the diameter of the manhole, which is predetermined, all other dimensions need to be calculated. But the structure is still not very clear. I see that the outer surface of the cushion is tilted by about 5°; so is the inner diameter at the end of the cylinder also tilted and angled? Moreover, the roughness of the inner diameter at the end of the cylinder is not very clear.