CN213332864U - Titanium alloy is oil pipe joint for seabed - Google Patents
Titanium alloy is oil pipe joint for seabed Download PDFInfo
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- CN213332864U CN213332864U CN202021772741.9U CN202021772741U CN213332864U CN 213332864 U CN213332864 U CN 213332864U CN 202021772741 U CN202021772741 U CN 202021772741U CN 213332864 U CN213332864 U CN 213332864U
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Abstract
The utility model discloses a titanium alloy oil pipe joint for sea floor, which comprises a first connecting part and a second connecting part, wherein the first connecting part and the second connecting part are of an integrated structure, the first connecting part comprises a first thread, a first step surface and a second step surface, the first thread is arranged on the inner wall of the inner end of the first connecting part, the first step surface is arranged at one end of the outer wall of the first connecting part, the second step surface is arranged at the other end of the outer wall of the first connecting part, the radius of the second step surface is larger than that of the first step surface, the second connecting part comprises a third step surface and a fourth step surface which are sequentially arranged on the outer wall of the second connecting part, a sealing oil ring groove is arranged on the third step surface, one end of the fourth step surface is provided with a second thread, the radius of the third step surface is larger than that of the fourth step surface, and the radius of the third step surface is smaller than that of the first step, the radius of the inner circular hole of the first connecting part is larger than that of the inner circular hole of the second connecting part, and the first connecting part and the second connecting part are communicated. The utility model discloses a titanium alloy is oil pipe joint for seabed through adopting high strong titanium alloy TC11, and not only the articulate is firm, corrosion-resistant, and is sealed effectual moreover.
Description
Technical Field
The utility model belongs to the technical field of the oil pipe connects, concretely relates to titanium alloy is oil pipe connects for seabed.
Background
Offshore oil exploitation is a high risk industry, the environment of the offshore oil exploitation is special, the seabed pressure is high, the acid-base environment is complex, the joints on the existing drilling mechanical equipment are various in form and are generally made of stainless steel or other corrosion-resistant materials, however, the existing seabed oil pipe joints generally have the problems of oil leakage, cracks on the joints with pressure resistance not reaching the standard or unreliable connection and the like.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough of prior art, provide a connect firm, corrosion-resistant and sealed effectual oil pipe joint for titanium alloy seabed.
The utility model adopts the technical proposal that: an oil pipe joint for titanium alloy seabed comprises a first connecting part and a second connecting part which are of an integrally formed structure, the first connecting part comprises a first thread, a first step surface and a second step surface, the first thread is arranged on the inner end inner wall of the first connecting part, the first step surface is arranged at one end of the outer wall of the first connecting part, the second step surface is arranged at the other end of the outer wall of the first connecting part, the radius of the second step surface is larger than that of the first step surface, the second connecting part comprises a third step surface and a fourth step surface which are sequentially arranged on the outer wall of the second connecting part, a sealing oil ring groove is arranged on the third step surface, a second thread is arranged at one end of the fourth step surface, the radius of the third step surface is larger than that of the fourth step surface, and the radius of the third step surface is smaller than that of the first step surface, and the radius of the inner circular hole of the first connecting part is larger than that of the inner circular hole of the second connecting part and is communicated with the inner circular hole of the second connecting part.
Preferably, the end of the first step surface is provided with a triangular groove.
Preferably, the end heads of the third step surface and the fourth step surface are provided with sealing gaskets.
Further preferably, a groove is formed in the inner wall of the second connecting portion.
More preferably, the first connecting part and the second connecting part are made of titanium alloy TC11 material.
Compared with the prior art, the utility model discloses beneficial effect who has: the utility model discloses a both ends threaded connection head that sets up, the firm nature of connection has been realized, and the sealed pad that sets up of sealed oil ring recess and second step face and third step face end has further promoted its sealed effect, and the first step that the other end set up has realized oil pipe joint's two-stage with first screw thread sealed, the protection of external protection connecting tube end has been realized in the triangle-shaped recess, and the oil pipe joint body adopts titanium alloy TC11 material processing to form, the pressure resistance of cavity joint body has been increased promptly, its corrosion resisting property has been improved again.
Drawings
Fig. 1 is a half sectional view of the structure of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
An oil pipe joint for titanium alloy seabed, referring to fig. 1, comprises a first connecting part 1 and a second connecting part 2, the first connecting part 1 and the second connecting part 2 are of an integrally formed structure, the first connecting part 1 comprises a first thread 14, a first step surface 11 and a second step surface 13, the first thread 14 is arranged on the inner end inner wall of the first connecting part 1, the first step surface 11 is arranged at one end of the outer wall of the first connecting part 1, the second step surface 13 is arranged at the other end of the outer wall of the first connecting part 1, the radius of the second step surface 13 is larger than the radius of the first step surface 11, the second connecting part 2 comprises a third step surface 21 and a fourth step surface 23 which are sequentially arranged on the outer wall of the second connecting part, a sealing oil ring groove 22 is arranged on the third step surface 21, a second thread 24 is arranged at one end of the fourth step surface 23, the radius of the third step surface 21 is larger than the radius of the fourth step surface 23, and the radius of the third step surface 21 is smaller than that of the first step surface 11, and the radius of the inner circular hole of the first connecting part 1 is larger than that of the inner circular hole of the second connecting part 2 and is communicated with the inner circular hole.
In order to protect the external pipe joint, referring to fig. 1, the end of the first step surface 11 is provided with a triangular groove 12. The tube is mounted on the first step surface 11 and the tip extends into the triangular recess 12.
In order to increase the sealing effect, the ends of the third step surface 21 and the fourth step surface 23 are provided with sealing gaskets.
In order to prevent the formation of eddy current at the joint, referring to fig. 1, a groove 25 is formed on the inner wall of the second connection portion 2.
In order to make the joint corrosion resistant and more pressure resistant, the first connecting part 1 and the second connecting part 2 are made of titanium alloy TC 11.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the present invention, so that all equivalent changes made by the contents of the claims of the present invention should be included in the scope of the claims of the present invention.
Claims (5)
1. An oil pipe joint for titanium alloy seabed comprises a first connecting part (1) and a second connecting part (2), and is characterized in that the first connecting part (1) and the second connecting part (2) are of an integrally formed structure, the first connecting part (1) comprises a first thread (14), a first step surface (11) and a second step surface (13), the first thread (14) is arranged on the inner end inner wall of the first connecting part (1), the first step surface (11) is arranged at one end of the outer wall of the first connecting part (1), the second step surface (13) is arranged at the other end of the outer wall of the first connecting part (1), the radius of the second step surface (13) is larger than that of the first step surface (11), the second connecting part (2) comprises a third step surface (21) and a fourth step surface (23) which are sequentially arranged on the outer wall of the second connecting part, an oil ring groove (22) is arranged on the third sealing step surface (21), and one end of the fourth step surface (23) is provided with a second thread (24), the radius of the third step surface (21) is larger than that of the fourth step surface (23), the radius of the third step surface (21) is smaller than that of the first step surface (11), and the radius of the inner circular hole of the first connecting part (1) is larger than that of the inner circular hole of the second connecting part (2) and is communicated with the inner circular hole of the second connecting part.
2. The titanium alloy subsea tubing joint according to claim 1, wherein the first step surface (11) terminates with a triangular groove (12).
3. The titanium alloy subsea oil pipe joint according to claim 2, wherein the third step surface (21) and the fourth step surface (23) are provided with sealing gaskets at the ends.
4. A titanium alloy subsea tubing joint according to claim 3, characterized in that the second connection part (2) is provided with a groove (25) in its inner wall.
5. The titanium alloy subsea tubing joint according to claim 4, wherein the first connection part (1) and the second connection part (2) are made of titanium alloy TC 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021772741.9U CN213332864U (en) | 2020-08-21 | 2020-08-21 | Titanium alloy is oil pipe joint for seabed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021772741.9U CN213332864U (en) | 2020-08-21 | 2020-08-21 | Titanium alloy is oil pipe joint for seabed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213332864U true CN213332864U (en) | 2021-06-01 |
Family
ID=76099132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021772741.9U Active CN213332864U (en) | 2020-08-21 | 2020-08-21 | Titanium alloy is oil pipe joint for seabed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213332864U (en) |
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2020
- 2020-08-21 CN CN202021772741.9U patent/CN213332864U/en active Active
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