Joint lock ring system for lined pipes
View Patent ↗A joint ring system for lined pipes includes a first pipe and a second pipe joined end-to-end, each pipe having an interior lining covering substantially all of an interior wall of the respective pipe. A first ring is disposed within and substantially flush with the joined end of the first pipe, and a second ring is disposed within and substantially flush with the joined end of the second pipe. The first ring is configured to create a first circumferential pressure seal against the interior wall of the first pipe, and the second ring is configured to create a second circumferential pressure seal against the interior wall of the second pipe. At least one of the first ring and the second ring is configured to create a pipe joint pressure seal against the other ring.
1. A joint ring system for lined pipes, the system comprising:
a first pipe and a second pipe, each pipe having an interior lining covering substantially all of an interior wall of the respective pipe, the pipes being joined end-to-end;
a first ring disposed within and substantially flush with the joined end of the first pipe, with the first ring located between a proximal end of the interior lining within the first pipe and the joined end of the first pipe; and
a second ring disposed within and substantially flush with the joined end of the second pipe, with the second ring located between a proximal end of the interior lining within the second pipe and the joined end of the second pipe, wherein at least one of the first ring and the second ring is configured to create a pipe joint pressure seal against the other of the first ring and the second ring; and
wherein each ring comprises:
a plurality of through holes positioned circumferentially around the respective ring; and
a liner disposed on an inner circumferential surface of the respective ring, the liner extending into each of the plurality of through holes.
2. The joint ring system of claim 1 , wherein the interior lining of each pipe comprises one of cement or rubber.
3. The joint ring system of claim 1 , wherein the pipe joint pressure seal comprises an O-ring seated in a groove formed in an anterior circumferential surface of one of the rings.
4. The joint ring system of claim 1 , further comprising a coating disposed on an inner circumferential surface of each ring, wherein the coating is configured to resist corrosion when exposed to a fluid transported within each pipe during use.
5. The joint ring system of claim 1 , wherein each through hole has a first hole diameter near an outer circumferential surface of each respective ring and a second hole diameter near the inner circumferential surface of each respective ring, the first hold diameter being larger than the second hole diameter, and wherein each liner comprises a plurality of fingers, each finger extending into one of the through holes, each finger having a first finger diameter and a second finger diameter, the first finger diameter being approximately equal to the first hole diameter, and the second finger diameter being approximately equal to the second hole diameter.
6. The joint ring system of claim 1 , wherein each liner entirely covers a posterior edge of each respective ring.
7. A joint ring system for lined pipes, the system comprising:
a first pipe and a second pipe, each pipe having an interior lining covering substantially all of an interior wall of the respective pipe, the pipes being joined end-to-end;
a first ring disposed within and substantially flush with the joined end of the first pipe, the first ring located between a proximal end of the interior lining within the first pipe and the joined end of the first pipe;
a second ring disposed within and substantially flush with the joined end of the second pipe, the second ring located between a proximal end of the interior lining within the second pipe and the joined end of the second pipe; and
a sealing element configured to form a pipe joint pressure seal between the first ring and the second ring; and
wherein each ring comprises:
a plurality of through holes positioned circumferentially around the respective ring; and
a liner disposed on an inner circumferential surface of the respective ring, the liner extending into each of the plurality of through holes.
8. The joint ring system of claim 7 , wherein the interior lining of each pipe comprises one of cement or rubber.
9. The joint ring system of claim 7 , wherein the third sealing element comprises at least one anterior circumferential seal, each anterior circumferential seal disposed on at least one of the rings and configured to seal against the other ring.
10. The joint ring system of claim 9 , wherein each anterior circumferential seal seats in a groove formed in the anterior circumferential surface of each respective ring.
11. The joint ring system of claim 7 , further comprising a coating disposed on an inner circumferential surface of each ring, wherein the coating is configured to resist corrosion when exposed to a fluid transported within the joined pipes during use.
12. The joint ring system of claim 7 , wherein each through hole has a first hole diameter near an outer circumferential surface of each respective ring and a second hole diameter near the inner circumferential surface of each respective ring, the first hold diameter being larger than the second hole diameter, and wherein each liner comprises a plurality of fingers, each finger extending into one of the through holes, each finger having a first finger diameter and a second finger diameter, the first finger diameter being approximately equal to the first hole diameter, and the second finger diameter being approximately equal to the second hole diameter.
13. The joint ring system of claim 7 , wherein each liner entirely covers a posterior edge of each respective ring.
14. A joint ring system for lined pipes, the system comprising:
a first pipe and a second pipe, each pipe having an interior lining covering substantially all of an interior wall of the respective pipe, the pipes being joined end-to-end;
a first ring disposed within the joined end of the first pipe, the first ring including a first side, a second side opposite the first side, and a third side, wherein the first side of the first ring is substantially flush with the joined end of the first pipe, the second side of the first ring abuts against the interior lining of the first pipe, such that the first ring is located between a proximal end of the interior lining within the first pipe and the joined end of the first pipe, and the third side of the first ring is configured to form a first circumferential pressure seal against the interior wall of the first pipe; and
a second ring disposed within the joined end of the second pipe, the second ring including a first side, a second side opposite the first side, and a third side, wherein the first side of the second ring is substantially flush with the joined end of the second pipe, the second side of the second ring abuts against the interior lining of the second pipe, such that the second ring is located between a proximal end of the interior lining within the second pipe and the joined end of the second pipe, the third side of the second ring is configured to form a second circumferential pressure seal against the interior wall of the second pipe, and at least one of the first ring and the second ring is configured to create a pipe joint pressure seal against the other of the first ring and the second ring; and
wherein each ring comprises:
a plurality of through holes positioned circumferentially around the respective ring; and
a liner disposed on an inner circumferential surface of the respective ring, the liner extending into each of the plurality of through holes.
15. The joint ring system of claim 14 , wherein the interior lining of each pipe comprises one of cement or rubber.
16. The joint ring system of claim 14 , wherein at least one of the circumferential pressure seals comprises a weld.
17. The joint ring system of claim 14 , wherein the pipe joint pressure seal comprises an O-ring seated in a groove formed in an anterior circumferential surface of one of the rings.
18. The joint ring system of claim 14 , further comprising a coating disposed on an inner circumferential surface of each ring, wherein the coating is configured to resist corrosion when exposed to a fluid transported within each pipe during use.
19. The joint ring system of claim 14 , wherein each through hole has a first hole diameter near an outer circumferential surface of each respective ring and a second hole diameter near the inner circumferential surface of each respective ring, the first hold diameter being larger than the second hole diameter, and wherein each liner comprises a plurality of fingers, each finger extending into one of the through holes, each finger having a first finger diameter and a second finger diameter, the first finger diameter being approximately equal to the first hole diameter, and the second finger diameter being approximately equal to the second hole diameter.
20. The joint ring system of claim 14 , wherein each liner entirely covers a posterior edge of each respective ring.