CN222650759U - A high pressure-resistant and corrosion-resistant oil pipe - Google Patents
A high pressure-resistant and corrosion-resistant oil pipe Download PDFInfo
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- CN222650759U CN222650759U CN202421105878.7U CN202421105878U CN222650759U CN 222650759 U CN222650759 U CN 222650759U CN 202421105878 U CN202421105878 U CN 202421105878U CN 222650759 U CN222650759 U CN 222650759U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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Abstract
The utility model discloses a high compression-resistant anti-corrosion oil pipe which has the advantages of higher connection strength, good sealing performance, good compression resistance and high overall strength, and simultaneously, the outside and the inside of the pipe body have anti-corrosion functions, the heat preservation system is stable, and the oil liquid flows smoothly. The pipe comprises a pipe body, the one end of pipe body is equipped with the external screw thread section, the other end of pipe body is equipped with the joint, connect fixed cover to be established on the outer wall of pipe body, set up in the joint with the corresponding internal thread of external screw thread section on the pipe body, still be equipped with outer protective layer and outer anticorrosion layer on the outer wall of pipe body, be equipped with heat preservation, inner protective layer and interior anticorrosion layer on the inner wall of pipe body in proper order, be equipped with on the pipe body one side of external screw thread section still fixed be equipped with connect corresponding sealing shoulder, be equipped with on the pipe body be equipped with on the one end terminal surface of joint sealing gasket is fixed.
Description
Technical Field
The utility model relates to the technical field of petroleum exploitation, in particular to a high compression-resistant anti-corrosion oil pipe.
Background
With the continuous development of energy in society, petroleum is one of the indispensable energy materials, and after petroleum is extracted, the petroleum must be transported to corresponding processing departments for processing, and only the processed petroleum can be used, but when the petroleum is transported, the oil pipe is needed. Because of the complexity of the produced medium of the oil and gas field, the corrosion of the oil pipe is often caused, in order to solve the corrosion problem, oil pipes with different materials are developed, for example, when the produced medium contains CO2, the oil pipe is made of 13Cr material, when the produced medium contains H2S, the produced medium is made of 825 nickel-based alloy material, and the like. The application of the special materials solves the problem that the produced media corrode the conventional carbon steel materials, but the materials are expensive, and the development cost of the oil-gas field is increased.
For example, chinese patent with publication number CN217463739U discloses an anticorrosion composite material oil pipe, which comprises an oil pipe body, the outer wall cover of oil pipe body is equipped with fire prevention thermal-insulation pipe, the outer wall cover of fire prevention thermal-insulation pipe is equipped with the sound insulation pipe, the outer wall cover of sound insulation pipe is equipped with the protection pipe, the protection pipe is equipped with multilayer structure, the protection pipe includes epoxy layer, polyurethane layer, phenolic resin layer. Through setting up protection tube, modified phenolic aldehyde bottom coating and modified epoxy top coating for the acid and alkali corrosion resistance of oil pipe body has been improved to the accessible modified phenolic aldehyde bottom coating, modified epoxy top coating of the device, avoids in the soil mixed acid-base material to give oil pipe body and corrodes, and the epoxy layer, the polyurethane layer of protection tube, phenolic resin layer have better wearability, smoothness and corrosion resistance, thereby make the durability of oil pipe body better, and then improved the life of oil pipe body.
The anti-corrosion composite material oil pipe disclosed by the patent adopts various composite materials, such as an epoxy resin layer, a polyurethane layer, a phenolic resin layer, a modified phenolic aldehyde base coat, a modified epoxy surface coat and the like, has higher production cost, and meanwhile, has poorer overall strength and poor internal anti-corrosion performance, and is not beneficial to long-term use.
Disclosure of utility model
The utility model aims to overcome the defects of the prior art, and provides the high-compression-resistance anti-corrosion oil pipe which has the advantages of higher connection strength, good sealing performance, good compression resistance and high overall strength, and meanwhile, the outside and the inside of the pipe body have the anti-corrosion function, the heat preservation system is stable, and the oil fluid flows smoothly.
In order to solve the technical problems, the high-pressure-resistance anti-corrosion oil pipe comprises a pipe body, wherein one end of the pipe body is provided with an external thread section, the other end of the pipe body is provided with a joint, the joint is fixedly sleeved on the outer wall of the pipe body, an internal thread corresponding to the external thread section on the pipe body is arranged in the joint, an external protection layer and an external anti-corrosion layer are further arranged on the outer wall of the pipe body, an insulation layer, an internal protection layer and an internal anti-corrosion layer are sequentially arranged on the inner wall of the pipe body, a sealing shoulder corresponding to the joint is further fixedly arranged on one side of the pipe body provided with the external thread section, and a sealing gasket is fixedly arranged on the end face of one end of the pipe body provided with the joint.
Further, the end face of one side of the connector, which is far away from the pipe body, is fixedly provided with a sealing ring, one side of the sealing shoulder, which is close to the external thread section, is provided with a sealing groove corresponding to the sealing ring, and the sealing ring is made of elastic rubber.
Further, the pipe body is formed by processing seamless steel pipes.
Further, the outer protective layer is woven by steel wires, and a polyurethane coating is arranged on the outer surface of the steel wire layer.
Further, the outer anti-corrosion layer is a paint layer sprayed on the surface of the outer protective layer.
Further, the heat preservation is thermal-insulated cotton material.
Further, the inner protection layer is arranged on the surface of the heat preservation layer, and two ends of the inner protection layer extend outwards and are fixedly connected with the pipe body, so that the heat preservation layer is completely wrapped between the inner protection layer and the pipe body.
Further, the inner protective layer is made of a polyolefin material.
Further, the inner anti-corrosion layer is formed by spraying liquid epoxy paint.
Further, the sealing gasket is made of anti-corrosion rubber.
By adopting the technical scheme, the utility model has the following beneficial effects:
1. the two sections of pipe bodies are in threaded connection with the external thread sections on the pipe bodies through the internal threads of the connectors, so that the connection strength is high;
2. the elastic deformation of the sealing ring and the sealing gasket can be utilized to improve the sealing performance when the two end pipe bodies are connected;
3. An outer protective layer is arranged on the outer wall of the pipe body, and the outer protective layer woven by the steel wires forms a hard protective shell on the outer side of the pipe body, so that the compression resistance of the oil pipe can be improved, and the overall strength is improved;
4. The outer anti-corrosion layer and the inner anti-corrosion layer are arranged, so that the outer part and the inner part of the pipe body have anti-corrosion functions;
5. The heat preservation layer is completely wrapped between the inner protection layer and the pipe body, so that the heat preservation layer is completely isolated from the external environment, and the heat preservation system is ensured not to be damaged;
6. the surface inside the pipe body has higher smoothness, so that the friction between the oil liquid and the pipe body during flowing can be reduced.
Drawings
FIG. 1 is a schematic structural view of a high pressure resistant anticorrosion oil pipe of the utility model;
FIG. 2 is a schematic view of the cross-section of FIG. 1 taken along line A-A;
Fig. 3 is an enlarged view of a portion B in fig. 1.
Reference numeral 1, a tube body; 2, a joint, 3, an external thread section, 4, a sealing shoulder, 5, an external protection layer, 6, an external anti-corrosion layer, 7, a heat insulation layer, 8, an internal protection layer, 9, an internal anti-corrosion layer, 10, a sealing gasket, 21, an internal thread, 22, a sealing ring, 41 and a sealing groove.
Detailed Description
In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
As shown in fig. 1-3, in this embodiment, a high compression-resistant anti-corrosion oil pipe is provided, which comprises a pipe body 1, wherein one end of the pipe body 1 is provided with an external thread section 3, the other end of the pipe body 1 is provided with a joint 2, the joint 2 is fixedly sleeved on the outer wall of the pipe body 1, an internal thread 21 corresponding to the external thread section 3 on the pipe body 1 is provided in the joint 2, an external protection layer 5 and an external anti-corrosion layer 6 are further provided on the outer wall of the pipe body 1, and an insulation layer 7, an internal protection layer 8 and an internal anti-corrosion layer 9 are sequentially provided on the inner wall of the pipe body 1.
In this embodiment, the pipe body 1 is formed by processing a seamless steel pipe, and can bear the pressure during oil transportation.
In this embodiment, the outer protective layer 5 is woven by steel wires, and a polyurethane coating is arranged on the outer surface of the steel wire layer, so as to improve the wear resistance of the outer surface of the pipe body 1, and the outer protective layer 5 woven by steel wires forms a hard protective shell on the outer side of the pipe body 1, so that the compression resistance of the oil pipe can be improved, and the overall strength is improved.
In this embodiment, the outer anti-corrosion layer 6 is a paint layer sprayed on the surface of the outer protection layer 5, so that the aesthetic property of the pipe body 1 is improved and the outer surface of the pipe body 1 is prevented from being corroded.
In this embodiment, the heat preservation 7 is the heat insulation cotton material, and heat insulation cotton has better thermal insulation performance to the heat insulation cotton material is common material, and manufacturing cost is lower, thereby can reduce manufacturing cost, and heat preservation 7 is used for keeping warm to body 1, avoids the oil cooling.
In this embodiment, the inner protection layer 8 is disposed on the surface of the heat insulation layer 7, and two ends of the inner protection layer 8 extend outwards and are fixedly connected with the pipe body 1, so that the heat insulation layer 7 is completely wrapped between the inner protection layer 8 and the pipe body 1, and further, the heat insulation layer 7 is completely isolated from the external environment, so as to ensure that the heat insulation system is not damaged.
In the present embodiment, the inner protective layer 8 is made of a polyolefin material.
In the embodiment, the inner anti-corrosion layer 9 is formed by spraying liquid epoxy paint, the epoxy paint adopts chlorosulfonated polyethylene rubber as a main modifier, and the bi-component heavy anti-corrosion paint prepared by an advanced process is added with special additives, auxiliary agents and the like, so that the inside of the pipe body 1 has an anti-corrosion function, and meanwhile, the surface smoothness of the inside of the pipe body 1 can be improved by spraying the liquid epoxy paint, and the friction force between oil liquid and the pipe body 1 during flowing is reduced.
As shown in fig. 1-3, in this embodiment, a sealing shoulder 4 corresponding to the joint 2 is further fixedly disposed on the side, provided with the external thread section 3, of the pipe body 1, a sealing ring 22 is fixedly disposed on the end surface, away from the pipe body 1, of the joint 2, a sealing groove 41 corresponding to the sealing ring 22 is disposed on the side, close to the external thread section 3, of the sealing shoulder 4, after the two pipe bodies 1 are in threaded connection, the side, close to the external thread section 3, of the sealing shoulder 4 abuts against the end surface, away from the pipe body 1, of the head, the sealing ring 22 is made of elastic rubber, the sealing ring 22 is clamped into the sealing groove 41, and the sealing effect of the two pipe bodies 1 during connection is improved by using elastic deformation of the sealing ring 22.
As shown in fig. 1-3, in this embodiment, a sealing gasket 10 is fixedly disposed on an end surface of the pipe body 1, where the joint 2 is disposed, and when two pipe bodies 1 are connected, an end of the second pipe body 1 having the external thread section 3 extends into the joint 2 and is in threaded connection with the joint 2, and an end surface of the side of the second pipe body 1 having the external thread section 3 abuts against the sealing gasket 10 on the first pipe body 1, so that the sealing performance during connection is further improved.
In this embodiment, the sealing gasket 10 is made of anti-corrosion rubber, and has an anti-corrosion function while improving the sealing performance by using its elastic deformation, so that the two ends of the inner protection layer 8 are not corroded.
In this embodiment, one end of the joint 2 is fixedly connected with the first section of pipe body 1, and the other end of the joint 2 is in threaded connection with the second section of pipe body 1, so that the connection strength is high.
The high compression-resistant anti-corrosion oil pipe provided by the utility model has the advantages that one end of the pipe body 1 is provided with the external thread section 3, the other end of the pipe body 1 is provided with the joint 2, the joint 2 is fixedly sleeved on the outer wall of the pipe body 1, the joint 2 is internally provided with the internal thread 21 corresponding to the external thread section 3 on the pipe body 1, the two pipe bodies 1 are in threaded connection with the external thread section 3 on the pipe body 1 through the internal thread 21 of the joint 2, the connection strength is high, meanwhile, after the two pipe bodies 1 are in threaded connection, one side of the sealing shoulder 4 close to the external thread section 3 is abutted against the end surface of one side of the head far away from the pipe body 1, the sealing ring 22 is made of elastic rubber material, the sealing ring 22 is clamped into the sealing groove 41, and the sealing effect of the two pipe bodies 1 is improved by the elastic deformation of the sealing ring 22; the end face of one side of the second section pipe body 1 with the external thread section 3 is abutted against the sealing gasket 10 on the first section pipe body 1 to further improve the sealing performance in connection, an external protection layer 5 is arranged on the outer wall of the pipe body 1, the external protection layer 5 woven by steel wires forms a hard protection shell on the outer side of the pipe body 1 to improve the compression resistance of an oil pipe and the overall strength, an external anti-corrosion layer 6 is arranged on the surface of the external protection layer 5 to improve the aesthetic property of the pipe body 1 and avoid the corrosion of the outer surface of the pipe body 1, a heat preservation layer 7 is arranged on the inner wall of the pipe body 1, the heat preservation layer 7 is made of heat insulation cotton, the heat insulation cotton has good heat insulation and heat preservation performance, the heat insulation cotton is made of common materials, the production cost is low, the production cost can be reduced, the heat preservation layer 7 is used for preserving the pipe body 1 to avoid petroleum cooling, the two ends of the internal protection layer 8 extend outwards and are fixedly connected with the pipe body 1, the inner anti-corrosion coating 9 is formed by spraying liquid epoxy paint on the surface of the inner protective layer 8, so that the inner part of the pipe body 1 has a corrosion-resistant function, meanwhile, the surface finish of the inner part of the pipe body 1 can be improved by spraying the liquid epoxy paint, and the friction force between oil liquid and the pipe body 1 during flowing is reduced.
The technical problems, technical solutions and advantageous effects solved by the present utility model have been further described in detail in the above-described embodiments, and it should be understood that the above-described embodiments are only illustrative of the present utility model and are not intended to limit the present utility model, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present utility model should be included in the scope of protection of the present utility model.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421105878.7U CN222650759U (en) | 2024-05-21 | 2024-05-21 | A high pressure-resistant and corrosion-resistant oil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421105878.7U CN222650759U (en) | 2024-05-21 | 2024-05-21 | A high pressure-resistant and corrosion-resistant oil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222650759U true CN222650759U (en) | 2025-03-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421105878.7U Active CN222650759U (en) | 2024-05-21 | 2024-05-21 | A high pressure-resistant and corrosion-resistant oil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222650759U (en) |
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- 2024-05-21 CN CN202421105878.7U patent/CN222650759U/en active Active
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