CN112681988B - Friction welding type blowout prevention pipeline - Google Patents
Friction welding type blowout prevention pipeline Download PDFInfo
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- CN112681988B CN112681988B CN202110288892.XA CN202110288892A CN112681988B CN 112681988 B CN112681988 B CN 112681988B CN 202110288892 A CN202110288892 A CN 202110288892A CN 112681988 B CN112681988 B CN 112681988B
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Abstract
The invention discloses a friction welding type blowout prevention pipeline in the technical field of blowout prevention pipelines, which comprises a first flange, a second flange and a pipe body, wherein the first flange and the second flange are connected to the two ends of the pipe body in a friction welding mode; bosses are arranged at the ends, far away from the pipe body, of the first flange and the second flange, seal grooves are arranged on the end faces of the bosses, and first seal rings are arranged in the seal grooves; eight first through holes are uniformly formed in the circumference of the first flange, eight second through holes are uniformly formed in the circumference of the second flange, and the first through holes and the second through holes correspond to each other one by one; an emergency sealing structure is further arranged at one end, far away from the pipe body, of the first flange; the invention adopts a friction welding type method to manufacture the blowout prevention pipeline, the pipe body and the flanges at two ends are connected by adopting a friction welding type processing method, and post-welding heat treatment and machining are carried out, and the advantages of low cost and high strength are considered at the same time.
Description
Technical Field
The invention relates to the technical field of blowout prevention pipelines, in particular to a friction welding type blowout prevention pipeline.
Background
The blowout prevention pipeline belongs to a part of a well control device, is arranged between a four-way joint and a choke manifold and a kill manifold, and plays roles of connection and pressure bearing. There are two types of existing blowout prevention pipelines.
An integrated blowout prevention line. And a complete steel pipe material is adopted, and the integral turning is carried out in a machining mode according to the shape of the blowout prevention pipeline.
A threaded connection blowout prevention line. The pipe body and the flanges at two ends are respectively processed and formed, then turned and buckled at the connecting part, and finally buckled and connected by using a certain torque.
However, the strength of the integral blowout prevention pipeline is not problematic, but the total amount of turning raw materials is huge and the cost is wasted when the processing method is adopted because the outer diameters of the flange and the pipe body of the blowout prevention pipeline are greatly different. The threaded connection type blowout prevention pipeline reduces the cost, but due to the adoption of the threaded connection mode, under the high-pressure working condition, the sealing of the threaded connection is not reliable, and the quality problems of puncture, leakage, breakage and the like easily occur at the threaded connection part, so that production accidents are caused. Simply speaking, high strength and low cost cannot be considered at the same time.
Based on the above, the invention provides a friction welding type blowout prevention pipeline, which solves the problems.
Disclosure of Invention
In order to solve the above problems, the present invention provides the following technical solutions:
a friction welding type blowout prevention pipeline comprises a first flange, a second flange and a pipe body, wherein the first flange and the second flange are connected to two ends of the pipe body in a friction welding mode; bosses are arranged at the ends, far away from the pipe body, of the first flange and the second flange, seal grooves are arranged on the end faces of the bosses, and first seal rings are placed in the seal grooves; eight first through holes are uniformly formed in the circumference of the first flange, eight second through holes are uniformly formed in the circumference of the second flange, and the first through holes and the second through holes are in one-to-one correspondence; the one end that the body was kept away from to first flange still is equipped with urgent seal structure.
The specific operation of connecting one tube body to another tube body is: a first flange of one pipe body is tightly attached to a second flange of the other pipe body, a first sealing ring is placed in a sealing groove before tight attachment, then a first through hole in the first flange is enabled to correspond to a second through hole in the second flange through calibration, and the first flange and the second flange are firmly fixed through bolts so that the first flange and the second flange are tightly attached.
As a further scheme of the invention, the emergency sealing structure is arranged outside the boss and comprises a second sealing ring, one end of the first flange, which is far away from the pipe body, is provided with an installation groove, and the second sealing ring is installed in the installation groove and the installation position is sealed. The design of the mounting groove enables the second sealing ring to have enough retraction space when the first flange and the second flange are tightly attached.
As a further scheme of the invention, the second sealing ring is a cavity, one side of the second sealing ring close to the first flange is in an open shape, and the bottom of the cavity is fixedly connected with a steel ring. During the use, the steel ring plays the effect of the elasticity of conversion spring, prevents that second sealing ring and second flange laminating are inhomogeneous.
As a further scheme of the invention, a spring groove is arranged on the inner side of the mounting groove, the spring groove is an annular groove, springs are uniformly mounted on the inner circumference of the spring groove, and the other end of each spring is fixedly connected with a steel ring.
As a further scheme of the invention, the thickness of one side of the second sealing ring connected with the steel ring is larger than that of the other side.
As a further scheme of the invention, an alarm device for alarming when water is in contact with the first flange is installed in the first flange, and the alarm device is installed between the boss and the emergency sealing structure.
After first flange and second flange pass through bolted connection, the second sealing ring is compressed by the second flange, and to the mounting groove internal contraction, the spring is compressed, and the elasticity that produces after the spring is compressed promotes the steel ring and makes second sealing ring and second flange closely laminate, seals the clearance between first flange and the second flange once more. When the bolt of connecting first flange and second flange is not hard up, the gap can appear in the sealed of first sealing ring, and the internal liquid of jar can flow, and the liquid of outflow meets alarm device, and alarm device sends signal notification technical staff emergency maintenance to service terminal, and emergency seal structure can play the effect of interim sealing before the technical staff arrives. The concrete principle of the temporary sealing is as follows: when the bolt loosens, the interval of first flange and second flange is little grow, but because the spring is in compression state, when the interval grow, the spring resumes partial deformation, promotes the steel ring and still presses the second sealing ring only on the second flange.
As a further aspect of the present invention, after the first flange and the second flange are tightly connected by the bolt, the second seal ring is compressed by the second flange, and as a further aspect of the present invention, after the first flange and the second flange are connected to the pipe body by friction welding, the connected portions are subjected to annealing heat treatment, outer flash machining removal, quenching heat treatment, tempering heat treatment, and inner surface grinding.
Advantageous effects
Compared with the prior art, the invention has the beneficial effects that:
1. the anti-blowout pipeline is manufactured by adopting a friction welding method, the pipe body and the flanges at two ends are connected by adopting a friction welding processing method, and post-welding heat treatment and machining are carried out, and the advantages of low cost and high strength are considered at the same time.
2. Through the cooperation use of emergency seal structure and alarm device, when taking place to leak, alarm device can in time inform technical staff to maintain, and emergency seal mechanism can play the effect of interim sealing before technical staff arrives, prevents to reveal.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is an enlarged schematic view of the first flanged end of FIG. 1 in accordance with the present invention;
FIG. 3 is a schematic cross-sectional view of the present invention;
fig. 4 is an enlarged view of the first flanged end of fig. 3 according to the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1-a first flange, 2-a second flange, 3-a pipe body, 4-a boss, 5-a sealing groove, 6-a first sealing ring, 7-a first through hole, 8-a second through hole, 9-an emergency sealing structure, 10-a second sealing ring, 11-a mounting groove, 12-a steel ring, 13-a spring groove, 14-a spring and 15-an alarm device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution:
a friction welding type blowout prevention pipeline comprises a first flange 1, a second flange 2 and a pipe body 3, wherein the first flange 1 and the second flange 2 are connected to two ends of the pipe body 3 in a friction welding mode; bosses 4 are arranged at the ends, far away from the pipe body 3, of the first flange 1 and the second flange 2, seal grooves 5 are arranged on the end faces of the bosses 4, and first seal rings 6 are arranged in the seal grooves 5; eight first through holes 7 are uniformly formed in the circumference of the first flange 1, eight second through holes 8 are uniformly formed in the circumference of the second flange 2, and the first through holes 7 correspond to the second through holes 8 one by one; the end of the first flange 1 far away from the pipe body 3 is also provided with an emergency sealing structure 9.
The specific operations of connecting one tubular body 3 and the other tubular body 3 are: a first flange 1 of one pipe body 3 is tightly attached to a second flange 2 of the other pipe body 3, a first sealing ring 6 is placed in a sealing groove 5 before tight attachment, then a first through hole 7 in the first flange 1 corresponds to a second through hole 8 in the second flange 2 through calibration, and the first flange 1 and the second flange 2 are firmly fixed through bolts, so that the first flange 1 and the second flange 2 are tightly attached.
As an embodiment of the present invention, the emergency sealing structure 9 is disposed outside the boss 4, the emergency sealing structure 9 includes a second sealing ring 10, an installation groove 11 is disposed at an end of the first flange 1 away from the pipe body 3, and the second sealing ring 10 is installed in the installation groove 11 and seals the installation position. The mounting groove 11 is designed to ensure that the second sealing ring 10 has enough retraction space when the first flange 1 and the second flange 2 are tightly attached.
In one embodiment of the present invention, the second sealing ring 10 is a cavity, and one side of the second sealing ring close to the first flange 1 is open, and a steel ring 12 is fixedly connected to the bottom of the cavity. When the sealing device is used, the steel ring 12 plays a role in converting the elastic force of the spring 14, and the second sealing ring 10 is prevented from being attached to the second flange 2 unevenly.
As an embodiment of the invention, a spring groove 13 is arranged inside the mounting groove 11, the spring groove 13 is an annular groove, springs 14 are uniformly mounted on the inner circumference of the spring groove 13, and the other ends of the springs 14 are fixedly connected with the steel ring 12.
In one embodiment of the present invention, the thickness of the second sealing ring 10 is greater on the side connected to the steel ring 12 than on the other side.
In one embodiment of the present invention, an alarm device 15 for alarming when water is present is installed in the first flange 1, and the alarm device 15 is installed between the boss 4 and the emergency seal structure 9.
After the first flange 1 and the second flange 2 are connected through the bolts, the second sealing ring 10 is compressed by the second flange 2 and is contracted into the mounting groove 11, the spring 14 is compressed, the elastic force generated after the spring 14 is compressed pushes the steel ring 12 to enable the second sealing ring 10 to be tightly attached to the second flange 2, and the gap between the first flange 1 and the second flange 2 is sealed again. When the bolts connecting the first flange 1 and the second flange 2 are loosened, a gap can appear in the sealing of the first sealing ring 6, liquid in the tank body can flow out, the flowing liquid meets the alarm device 15, the alarm device 15 sends a signal to the service terminal to inform a technician of emergency maintenance, and the emergency sealing structure 9 can play a role in temporary sealing before the technician comes. The concrete principle of the temporary sealing is as follows: when the bolts are loosened, the distance between the first flange 1 and the second flange 2 becomes slightly larger, but since the spring 14 is in a compressed state, when the distance becomes larger, the spring 14 returns to a partial deformation, pushing the steel ring 12 to still press the second sealing ring 10 only on the second flange 2.
In a further embodiment of the present invention, after the first flange 1 and the second flange 2 are tightly coupled by bolts and the second seal ring 10 is compressed by the second flange 2, the first flange 1 and the second flange 2 are coupled to the pipe body 3 by friction welding, and then the coupled portions are subjected to annealing heat treatment, outer flash removal, quenching heat treatment, tempering heat treatment, and inner surface dressing.
One specific application of this embodiment is:
when the pipe fitting is used, the first flange 1 of one pipe body 3 is tightly attached to the second flange 2 of the other pipe body 3, the first sealing ring 6 is placed in the sealing groove 5 before the pipe fitting is tightly attached, then the first through hole 7 in the first flange 1 corresponds to the second through hole 8 in the second flange 2 through calibration, and the first flange 1 and the second flange 2 are firmly fixed through bolts so that the first flange 1 and the second flange 2 are tightly attached.
After the first flange 1 and the second flange 2 are connected through the bolts, the second sealing ring 10 is compressed by the second flange 2 and is contracted into the mounting groove 11, the spring 14 is compressed, the elastic force generated after the spring 14 is compressed pushes the steel ring 12 to enable the second sealing ring 10 to be tightly attached to the second flange 2, and the gap between the first flange 1 and the second flange 2 is sealed again. When the bolts connecting the first flange 1 and the second flange 2 are loosened, a gap can appear in the sealing of the first sealing ring 6, liquid in the tank body can flow out, the flowing liquid meets the alarm device 15, the alarm device 15 sends a signal to the service terminal to inform a technician of emergency maintenance, and the emergency sealing structure 9 can play a role in temporary sealing before the technician comes. The concrete principle of the temporary sealing is as follows: when the bolts are loosened, the distance between the first flange 1 and the second flange 2 becomes slightly larger, but since the spring 14 is in a compressed state, when the distance becomes larger, the spring 14 returns to a partial deformation, pushing the steel ring 12 to still press the second sealing ring 10 only on the second flange 2. The invention adopts a friction welding type method to manufacture the blowout prevention pipeline, the pipe body 3 and the flanges at two ends are connected by adopting a friction welding type processing method, and post-welding heat treatment and machining are carried out, and the advantages of low cost and high strength are considered at the same time.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. The utility model provides a friction welding formula prevents spouting pipeline, includes first flange (1), second flange (2) and body (3), its characterized in that: the first flange (1) and the second flange (2) are connected to the two ends of the pipe body (3) in a friction welding mode; bosses (4) are arranged at one ends, far away from the pipe body (3), of the first flange (1) and the second flange (2), sealing grooves (5) are arranged on the end faces of the bosses (4), and first sealing rings (6) are placed in the sealing grooves (5); eight first through holes (7) are uniformly formed in the circumference of the first flange (1), eight second through holes (8) are uniformly formed in the circumference of the second flange (2), and the first through holes (7) correspond to the second through holes (8) one by one; an emergency sealing structure (9) is further arranged at one end, far away from the pipe body (3), of the first flange (1);
the emergency sealing structure (9) is arranged on the outer side of the boss (4), the emergency sealing structure (9) comprises a second sealing ring (10), one end, far away from the pipe body (3), of the first flange (1) is provided with a mounting groove (11), the second sealing ring (10) is mounted in the mounting groove (11), and the mounting position is sealed;
install alarm device (15) of meeting water alarm in first flange (1), alarm device (15) are installed between boss (4) and emergency seal structure (9).
2. A friction welded blowout preventer pipeline according to claim 1, wherein: the second sealing ring (10) is a cavity, one side of the second sealing ring close to the first flange (1) is in an opening shape, and a steel ring (12) is fixedly connected to the bottom of the cavity.
3. A friction welded blowout preventer pipeline according to claim 2, wherein: the inner side of the mounting groove (11) is provided with a spring groove (13), the spring groove (13) is an annular groove, springs (14) are uniformly mounted on the inner circumference of the spring groove (13), and the other end of each spring (14) is fixedly connected with the steel ring (12).
4. A friction welded blowout preventer pipeline according to claim 3, wherein: the thickness of one side of the second sealing ring (10) connected with the steel ring (12) is larger than that of the other side.
5. A friction welded blowout preventer pipeline according to claim 1, wherein: after the first flange (1) and the second flange (2) are connected with the pipe body (3) in a friction welding mode, annealing heat treatment, outer flash machining removal, quenching heat treatment, tempering heat treatment and inner surface grinding are carried out on the connected parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110288892.XA CN112681988B (en) | 2021-03-18 | 2021-03-18 | Friction welding type blowout prevention pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110288892.XA CN112681988B (en) | 2021-03-18 | 2021-03-18 | Friction welding type blowout prevention pipeline |
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| Publication Number | Publication Date |
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| CN112681988A CN112681988A (en) | 2021-04-20 |
| CN112681988B true CN112681988B (en) | 2022-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110288892.XA Active CN112681988B (en) | 2021-03-18 | 2021-03-18 | Friction welding type blowout prevention pipeline |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205077502U (en) * | 2015-10-15 | 2016-03-09 | 北京市轨道交通建设管理有限公司 | A blowout preventer for holing gush sand and emit water |
| CN206289672U (en) * | 2016-12-22 | 2017-06-30 | 咸阳亨通电力（集团）有限公司 | A kind of waterproof and dustproof, noiseproof manhole cover |
| CN207538811U (en) * | 2017-11-22 | 2018-06-26 | 盐城市恒通石油机械制造有限公司 | A kind of single hand wheel blowout prevention blowout preventer |
| CN212199532U (en) * | 2020-04-14 | 2020-12-22 | 绍兴市上虞和盛纺器有限公司 | Chenille machine spinning bobbin |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO319635B1 (en) * | 2002-08-19 | 2005-09-05 | Marine Direct Consultants Ltd | Device for connecting rudder. |
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2021
- 2021-03-18 CN CN202110288892.XA patent/CN112681988B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205077502U (en) * | 2015-10-15 | 2016-03-09 | 北京市轨道交通建设管理有限公司 | A blowout preventer for holing gush sand and emit water |
| CN206289672U (en) * | 2016-12-22 | 2017-06-30 | 咸阳亨通电力（集团）有限公司 | A kind of waterproof and dustproof, noiseproof manhole cover |
| CN207538811U (en) * | 2017-11-22 | 2018-06-26 | 盐城市恒通石油机械制造有限公司 | A kind of single hand wheel blowout prevention blowout preventer |
| CN212199532U (en) * | 2020-04-14 | 2020-12-22 | 绍兴市上虞和盛纺器有限公司 | Chenille machine spinning bobbin |
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| CN112681988A (en) | 2021-04-20 |
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