Penetration slider seal expansion joint apparatus and method
An expansion joint lies between a device and pipe and allows for movement at the joint. Embodiments utilize a case pipe, a sliding ring formed to house seals, and a flange that holds the sliding ring in place. A pipe contacts an inner seal inside the sliding ring which is compressed against the pipe beyond its memory and forms a tight seal, yet allows for pipe to move through the apparatus. At least one outer seal is compressed within its memory which allows for rotation of pipe and/or sliding ring relative to the apparatus about the axis of the pipe. Allows for unlimited travel of pipe and unlimited rotation. The apparatus becomes more efficient as contaminants fill the seals. Works below, at and beyond 1300 degree media, for example any liquid or gas. May be disassembled easily maintained.
1. A penetration slider seal expansion joint comprising:
a case pipe;
an inner ring coupled with said case pipe;
a sliding ring configured to hold an inner seal and at least one outer seal;
a flange configured to hold said sliding ring and said inner seal and said at least one outer seal against said inner ring;
said inner seal compressed beyond memory against a pipe; and,
said at least one outer seal compressed within memory.
2. The apparatus of claim 1 wherein said inner seal is formed from braided metallic wire.
3. The apparatus of claim 1 wherein said inner seal allows less matter to escape as said inner seal fills with contaminants.
4. The apparatus of claim 1 wherein said at least one outer seal is formed from braided metallic wire.
5. The apparatus of claim 1 wherein said at least one outer seal allows less matter to escape as said at least one outer seals fills with contaminants.
6. The apparatus of claim 1 wherein said at least one outer seal is compressed within memory against at least one planar surface orthogonal to an axis parallel to said pipe.
7. The apparatus of claim 6 wherein said at least one planar surface orthogonal to said axis parallel to said pipe is a flange.
8. The apparatus of claim 6 wherein said at least one planar surface orthogonal to said axis parallel to said pipe is a flange ring.
9. The apparatus of claim 6 wherein said at least one planar surface orthogonal to said axis parallel to said pipe is a flange and flange ring.
10. The apparatus of claim 1 wherein said case pipe is formed from two halves.
11. The apparatus of claim 1 wherein said sliding ring is formed from two halves.
12. The apparatus of claim 1 wherein said flange is formed from two halves.
13. The apparatus of claim 1 further comprising:
insulation configured between a case pipe wall and said pipe.
14. The apparatus of claim 1 further comprising:
a inner ring gap between said inner ring and said pipe.
15. The apparatus of claim 1 further comprising:
a flange gap between said flange and said pipe.
16. A method for utilizing a penetration slider seal expansion joint comprising:
coupling an inner seal and at least one outer seal with a sliding ring;
coupling an inner seal with a pipe;
compressing said inner seal between said sliding ring and said pipe wherein said inner seal is compressed beyond memory;
coupling a flange to a case pipe to enclose said sliding ring; and,
compressing said at least one outer seal within memory.
17. The method of claim 16 further comprising:
forming said inner seal from braided metallic wire.
18. The method of claim 16 further comprising:
decreasing the amount of matter that escapes via said inner seal by filling said inner seal with contaminants.
19. The method of claim 16 further comprising:
forming said at least one outer seal from braided metallic wire.
20. The method of claim 16 further comprising:
decreasing the amount of matter that escapes via said at least one outer seal by filling said at least one outer seal with contaminants.