CN213333101U - Protection device for petroleum pipeline junction - Google Patents
Protection device for petroleum pipeline junction Download PDFInfo
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- CN213333101U CN213333101U CN202021978295.7U CN202021978295U CN213333101U CN 213333101 U CN213333101 U CN 213333101U CN 202021978295 U CN202021978295 U CN 202021978295U CN 213333101 U CN213333101 U CN 213333101U
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Abstract
The application relates to a protective device for a petroleum pipeline joint, which relates to the field of petroleum pipeline installation protection and comprises a first sleeve and a second sleeve hermetically connected with the first sleeve; the first sleeve and the second sleeve are hermetically connected to the petroleum pipelines, and a sealed cavity is formed between the first sleeve and the two petroleum pipelines; the first sleeve is connected with an air inlet pipeline and an air outlet pipeline, the air inlet pipeline is provided with an air inlet valve, and the air outlet pipeline is provided with an air outlet valve; the sealed cavity is filled with inert gas. The method and the device reduce the risk of leakage when the petroleum pipeline is buried underground.
Description
Technical Field
The application relates to the field of petroleum pipeline installation protection, in particular to a protection device for a petroleum pipeline joint.
Background
The petroleum pipeline is composed of an oil pipe and accessories thereof.
Petroleum pipe is typically installed by welding two petroleum pipes together. In the installation process of the petroleum pipeline, the petroleum pipeline can be designed and installed according to different landforms, and when the petroleum pipeline needs to cross a mountain, tunnels are usually opened on the mountain, and then the petroleum pipeline passes through the tunnels. However, in a flat terrain, a trench is usually dug in the ground, and then the petroleum pipeline is buried in the ground, and when the petroleum pipeline needs to be buried in the ground, the petroleum pipeline is easy to leak.
Disclosure of Invention
In order to reduce the risk that the petroleum pipeline leaks when buried underground, the application provides a protection device for the petroleum pipeline joint.
The application provides a protector of petroleum pipeline junction adopts following technical scheme:
a protection device for a petroleum pipeline joint comprises a first sleeve and a second sleeve hermetically connected with the first sleeve;
the first sleeve and the second sleeve are hermetically connected to the petroleum pipelines, and a sealed cavity is formed between the first sleeve and the second sleeve and between the two petroleum pipelines;
the first sleeve is connected with an air inlet pipeline and an air outlet pipeline, an air inlet valve is arranged on the air inlet pipeline, and an air outlet valve is arranged on the air outlet pipeline.
Through adopting above-mentioned technical scheme, after two petroleum pipeline butt welds finish, weld first sleeve pipe and second sleeve pipe on to two petroleum pipeline to the fixed sealing connection who utilizes a sleeve pipe and second sleeve pipe forms sealed cavity with two petroleum pipeline, and install admission line and the pipeline of giving vent to anger on first sleeve pipe, thereby the staff takes a breath in sealed cavity through admission line and the pipeline of giving vent to anger, has reduced the degree of corrosion of moist air to two petroleum pipeline welding departments.
Optionally, the sealed cavity is filled with an inert gas.
By adopting the technical scheme, the inert gas is introduced into the sealed cavity, so that the joint of the two petroleum pipelines is protected by the inert gas, and the corrosion to the joint of the two petroleum pipelines is reduced.
Optionally, the inert gas in the sealed cavity is a pressurized inert gas.
Through adopting above-mentioned technical scheme, become pressurization inert gas through making the inert gas pressurization in the sealed cavity to make pressurization inert gas can be better protect the junction of petroleum pipeline.
Optionally, the air inlet valve and the air outlet valve both adopt ball valves.
Through adopting above-mentioned technical scheme, the ball valve leakproofness is good, fluid resistance is little, and simple structure, small, light in weight, the ball valve can improve the leakproofness of sealed cavity.
Optionally, the protection device further comprises two groups of protection components for protecting the joint of the first sleeve and the petroleum pipeline and the joint of the second sleeve and the petroleum pipeline.
Through adopting above-mentioned technical scheme, utilize protective assembly to protect first sleeve pipe and petroleum pipeline junction and second sleeve pipe and petroleum pipeline junction, further reduced the degree that petroleum pipeline junction corrodes.
Optionally, the protective assembly includes a first protective sleeve hermetically connected to the first sleeve and a second protective sleeve hermetically connected to the second sleeve;
the first protective sleeve and the second protective sleeve are connected in a sealing mode, and the first protective sleeve and the second protective sleeve are both connected with the petroleum pipeline in a sealing mode.
Through adopting above-mentioned technical scheme, first lag and second lag protect the junction of first sleeve pipe and second sleeve pipe and petroleum pipeline, have slowed down the speed that first sleeve pipe and second sleeve pipe and petroleum pipeline junction were corroded.
Optionally, the first protecting sleeve is further connected with a second sleeve, the second protecting sleeve is further connected with the first sleeve, and a sealing area is formed among the first protecting sleeve, the second protecting sleeve, the first sleeve, the second sleeve and the petroleum pipeline.
Through adopting above-mentioned technical scheme for the tie point of first lag and second lag and the junction of first sleeve pipe and second sleeve pipe stagger, thereby better protect the junction of two petroleum pipelines.
Optionally, a vent pipe is connected to the first protective sleeve, a vent valve is arranged on the vent pipe, and a vacuum is formed in the sealing area.
By adopting the technical scheme, the corrosion degree of the joint of the first sleeve and the petroleum pipeline and the joint of the second sleeve and the petroleum pipeline is reduced by utilizing the vacuum sealing area.
In summary, the present application includes at least one of the following beneficial technical effects:
1. after butt welding of the two petroleum pipelines is finished, the first sleeve and the second sleeve are welded on the two petroleum pipelines, so that a sealed cavity is formed by the fixed sealing connection of the sleeve and the second sleeve and the two petroleum pipelines, an air inlet pipeline and an air outlet pipeline are installed on the first sleeve, a worker ventilates the sealed cavity through the air inlet pipeline and the air outlet pipeline, and the corrosion degree of moist air to the welding position of the two petroleum pipelines is reduced.
Drawings
Fig. 1 is a usage state diagram of an embodiment of the present application.
Fig. 2 is a schematic structural diagram of a protection device according to an embodiment of the present application.
Fig. 3 is a front view of fig. 2.
Fig. 4 is a schematic sectional view in the direction of a-a in fig. 3.
Description of reference numerals: 100. a first conduit; 200. a second conduit; 11. a first sleeve; 12. a second sleeve; 13. sealing the cavity; 21. an air intake duct; 211. an intake valve; 22. an air outlet pipe; 221. an air outlet valve; 3. a guard assembly; 31. a first protective cover; 32. a second protective cover; 33. a sealing region; 4. a breather pipe; 41. a vent valve.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
The embodiment of the application discloses protector of petroleum pipeline junction.
Because the petroleum pipelines are all connected by welding, the welding parts of the petroleum pipelines are easily corroded by various underground acidic and alkaline substances in the process of burying the petroleum pipelines underground, the petroleum pipelines are easily leaked after the corrosion of the acidic and alkaline substances to the welding parts of the petroleum pipelines, and the petroleum is conveyed by pressurizing in the conveying process, so that once the petroleum pipelines leak, the harm is great, the land is polluted, the survival of surrounding animals and plants is influenced, and great resource waste is caused.
Referring to fig. 1, the protector at the joint of the petroleum pipelines is installed and fixed at the welding position of two petroleum pipelines, which are respectively called a first pipeline 100 and a second pipeline 200, and is arranged at the joint of the first pipeline 100 and the second pipeline 200.
Referring to fig. 2, the protector includes a first sleeve 11 provided on a first pipe 100 and a second sleeve 12 provided on a second pipe 200, the first sleeve 11 is welded to the second sleeve 12, and a welding portion between the first sleeve 11 and the second sleeve 12 is sealed.
After the first pipeline 100 and the second pipeline 200 are welded, a first sleeve 11 and a second sleeve 12 are welded on the first pipeline 100 and the second pipeline 200, the first sleeve 11 and the second sleeve 12 are both semicircular in shape and size, the first sleeve 11 and the second sleeve 12 are in butt welding, two side ends of the first sleeve 11 are welded with two side ends of the second sleeve 12, one side end of the first sleeve 11 is also welded on the outer wall of the first pipeline 100, and the other side end of the first sleeve 11 is welded on the outer wall of the second pipeline 200. One side end of the second pipe 200 is welded to the outer wall of the first pipe 100, and the other end of the second pipe 200 is welded to the outer wall of the second pipe 200.
Referring to fig. 3 and 4, after the first sleeve 11 and the second sleeve 12 are welded to the first pipeline 100 and the second pipeline 200, a sealed cavity 13 is formed between the first sleeve 11, the second sleeve 12, the first pipeline 100 and the second pipeline 200, and after the welding of the first sleeve 11 to the first pipeline 100 and the second pipeline 200 is completed, the welding of the first sleeve 11 to the first pipeline 100 and the welding of the first sleeve 11 to the second pipeline 200 are sealed. After the welding of the second sleeve 12 to the first pipe 100 and the second pipe 200 is completed, the welding of the second sleeve 12 to the first pipe 100 and the welding of the second sleeve 12 to the second pipe 200 are sealed.
After the first sleeve 11 and the second sleeve 12 are welded, the first sleeve 11 and the second sleeve 12 cover the joint of the first pipeline 100 and the second pipeline 200, two holes are formed in the side wall of the first sleeve 11, one hole is an air inlet hole, the other hole is an air outlet hole, an air inlet pipeline 21 is welded on the first sleeve 11 at the position of the air inlet hole, an air outlet pipeline 22 is welded on the first sleeve 11 at the position of the air outlet hole, and therefore the air outlet of the air inlet pipeline 21 and the air inlet of the air outlet pipeline 22 are both communicated with the sealed cavity 13. An air inlet valve 211 is installed on the air inlet pipeline 21, an air outlet valve 221 is installed on the air outlet pipeline 22, and ball valves are adopted for the air inlet valve 211 and the air outlet valve 221.
After the above construction is completed, the worker may inject the inert gas into the sealed cavity 13 through the air inlet pipe 21, then discharge the original gas in the sealed cavity 13 through the air outlet pipe 22, after introducing the inert gas into the sealed cavity 13 for a certain period of time, block the air outlet valve 221 on the air outlet pipe 22, continue to inject the inert gas into the sealed cavity 13 through the air inlet pipe 21, so that the pressure of the inert gas in the sealed cavity 13 is greater than the atmospheric pressure.
In other embodiments, the inlet and outlet holes may also be provided on the second sleeve 12, such that the inlet duct 21 and the outlet duct 22 are both mounted on the second sleeve 12. Or one of the air inlet and outlet holes is formed in the first sleeve 11 and the other is formed in the second sleeve 12, so that the air inlet duct 21 and the air outlet duct 22 are installed on the first sleeve 11 and the other is installed on the second sleeve 12.
Referring to fig. 2, after the first sleeve 11 and the second sleeve 12 seal the joint of the first pipeline 100 and the second pipeline 200, in order to further improve the sealing degree of the first sleeve 11 and the second sleeve 12 to the joint of the first pipeline 100 and the second pipeline 200, the welding point of the first sleeve 11 and the first pipeline 100 and the welding point of the first sleeve 11 and the second pipeline 200, the welding point of the second sleeve 12 and the first pipeline 100 and the welding point of the second sleeve 12 and the second pipeline 200 are sealed. Thus, two groups of protection components 3 are arranged on the first sleeve 11 and the second sleeve 12, wherein one group of protection components seals the welding position of the first sleeve 11 and the second sleeve 12 with the first pipeline 100, and the other group of protection components seals the welding position of the first sleeve 11 and the second sleeve 12 with the second pipeline 200.
The protective assembly 3 comprises a first protective sleeve 31 and a second protective sleeve 32, the first protective sleeve 31 is welded with the second protective sleeve 32, in order to make the welding position of the first protective sleeve 31 and the second protective sleeve 32 and the welding position of the first sleeve 11 and the second sleeve 12 staggered, so that one side end of the first protective sleeve 31 is welded on the first sleeve 11, one side end is welded on the second protective sleeve 32, and the other side end of the first protective sleeve 31 is welded on the outer wall of the first pipeline 100 or the second pipeline 200. Similarly, the second shield 32 is welded to the first sleeve 11 at one side end, welded to the second sleeve 12 at one side end, and welded to the first pipe 100 or the second pipe 200 at the other side end. And after the two parts are welded, sealing the welding position.
Referring to fig. 2 and 4, a sealed area 33 is formed between the first shield 31, the second shield 32, the first sleeve 11 and the first conduit 100, and a sealed area 33 is also formed between the same first shield 31, second shield 32, first sleeve 11 and second conduit 200. A through hole is formed in the first protective sleeve 31, then a vent pipe 4 is welded on the first protective sleeve 31 at the position of the through hole, an air inlet of the vent pipe 4 is communicated with the sealing area 33 through the through hole, a vent valve 41 is installed on the vent pipe 4, and the vent valve 41 is a ball valve. Then, the worker introduces an inert gas into the sealed area 33 through the vent valve 41 or performs a vacuum process on the sealed area 33.
In other embodiments, the through hole may be opened in the second shield 32, and then the vent tube 4 may be mounted to the second shield 32.
During construction, the first pipeline 100 and the second pipeline 200 are welded, the first sleeve 11 and the second sleeve 12 are welded to the first pipeline 100 and the second pipeline 200, the first protective sleeve 31 and the second protective sleeve 32 are welded to the first pipeline 100 and the second pipeline 200, and finally the air inlet pipeline 21, the air outlet pipeline 22 and the air pipe 4 are welded.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a protector of petroleum pipeline junction which characterized in that: comprises a first sleeve (11) and a second sleeve (12) which is connected with the first sleeve (11) in a sealing way;
the first sleeve (11) and the second sleeve (12) are hermetically connected to the petroleum pipeline, and a sealed cavity (13) is formed between the first sleeve (11) and the second sleeve (12) and between the two petroleum pipelines;
the air inlet pipe (21) and the air outlet pipe (22) are connected to the first sleeve (11), an air inlet valve (211) is arranged on the air inlet pipe (21), and an air outlet valve (221) is arranged on the air outlet pipe (22).
2. A petroleum pipeline joint protection device as defined in claim 1, wherein: the sealed cavity (13) is filled with inert gas.
3. A petroleum pipeline joint protection device as defined in claim 1, wherein: the inert gas in the sealed cavity (13) is pressurized inert gas.
4. A petroleum pipeline joint protection device as defined in claim 1, wherein: the air inlet valve (211) and the air outlet valve (221) both adopt ball valves.
5. A petroleum pipeline joint protection device as defined in claim 1, wherein: the oil pipe protection device further comprises two groups of protection components (3) used for protecting the joint of the first sleeve (11) and the oil pipeline and the joint of the second sleeve (12) and the oil pipeline.
6. A petroleum pipeline joint protection device as defined in claim 5, wherein: the protective assembly (3) comprises a first protective sleeve (31) connected with the first sleeve (11) in a sealing mode and a second protective sleeve (32) connected with the second sleeve (12) in a sealing mode;
the first protecting sleeve (31) is connected with the second protecting sleeve (32) in a sealing mode, and the first protecting sleeve (31) and the second protecting sleeve (32) are both connected with the petroleum pipeline in a sealing mode.
7. A petroleum pipeline joint protection device as defined in claim 6, wherein: the first protecting sleeve (31) is further connected with a second sleeve (12), the second protecting sleeve (32) is further connected with a first sleeve (11), and a sealing area (33) is formed among the first protecting sleeve (31), the second protecting sleeve (32), the first sleeve (11), the second sleeve (12) and the petroleum pipeline.
8. A petroleum pipeline joint protection device as defined in claim 7, wherein: the first protective sleeve (31) is connected with a vent pipe (4), the vent pipe (4) is provided with a vent valve (41), and the sealing area (33) is vacuum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021978295.7U CN213333101U (en) | 2020-09-11 | 2020-09-11 | Protection device for petroleum pipeline junction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021978295.7U CN213333101U (en) | 2020-09-11 | 2020-09-11 | Protection device for petroleum pipeline junction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213333101U true CN213333101U (en) | 2021-06-01 |
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ID=76061466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021978295.7U Active CN213333101U (en) | 2020-09-11 | 2020-09-11 | Protection device for petroleum pipeline junction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213333101U (en) |
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2020
- 2020-09-11 CN CN202021978295.7U patent/CN213333101U/en active Active
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