CN210800434U - In-pipe plugging device of oil pipeline - Google Patents
In-pipe plugging device of oil pipeline Download PDFInfo
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- CN210800434U CN210800434U CN201921109701.3U CN201921109701U CN210800434U CN 210800434 U CN210800434 U CN 210800434U CN 201921109701 U CN201921109701 U CN 201921109701U CN 210800434 U CN210800434 U CN 210800434U
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Abstract
The utility model provides an in-pipe plugging device of an oil pipeline, which relates to the field of oil pipeline maintenance and comprises a sleeve, a gate valve, a cutting mechanism and a plugging mechanism which are used alternately, wherein the sleeve of the utility model is sleeved on two sides of a pipeline to be replaced, a through hole is cut on the pipeline in the sleeve by the cutting mechanism, then the gate valve closes the through hole, and oil is prevented from leaking out of the through hole; with cutting mechanism change for shutoff mechanism, the multiunit seal assembly of shutoff mechanism is in exploring oil pipeline under first hydraulic cylinder's promotion to realize the shutoff, treat to change pipeline both sides this moment and realize the shutoff, can carry out local quick replacement, thereby effectively improve and treat the change efficiency and the reduce cost of changing oil pipeline.
Description
Technical Field
The utility model relates to an oil pipeline maintains the field, especially relates to an oil pipeline's intraductal plugging device.
Background
The pipeline transportation has the advantages of large, continuous, rapid, economic, safe, reliable and stable transportation amount, less investment, less occupied area and low cost, and can realize automatic control. Besides being widely used for long-distance transportation of petroleum and natural gas, the material can also be used for transporting ores, coal, building materials, chemicals, grains and the like. The pipeline transportation can save the broken joints in the water transportation or the land transportation, shorten the transportation period, reduce the transportation cost and improve the transportation efficiency. The current trend in pipeline transportation is: the caliber of the pipeline is continuously increased, and the transportation capacity is greatly improved; the transport distance of the pipeline is rapidly increased; china has built a plurality of crude oil pipeline transportation lines from Daqing to Qinhuang island, Shengli oil field to Nanjing and the like.
However, in the existing oil pipeline, leakage is inevitable in long-term use, and the like, the existing method is to weld a patch and the like at the position of the leaked pipeline, but due to the fact that the welded patch has thermal expansion difference and the like with the original pipeline, secondary leakage is easy to occur at the position of the patch after a certain time, so that the method of replacing the oil pipeline in sections is gradually adopted at present, however, in the construction process, if valves are arranged in short areas at two sides of the pipeline to be replaced, the pipeline can be replaced by closing the valves, but if no valves are arranged, oil and the like in a large section area need to be extracted for replacement, so that the cost is high, and the time cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that overcome not enough that exists among the prior art, provide an intraductal plugging device of oil pipeline, the device can effectively improve the change efficiency and the reduce cost of damaged pipeline.
The utility model discloses a realize through following technical scheme: an in-pipe plugging device of an oil pipeline comprises sleeves, a gate valve, and a cutting mechanism and a plugging mechanism which are used alternately, wherein two groups of sleeves are respectively sleeved on two sides of a pipeline to be replaced, flanges are fixedly arranged on the sleeves, one side of the gate valve is in sealing connection with the flange of the sleeve through a locking bolt, the cutting mechanism and the plugging mechanism are both in sealing connection with the other side of the gate valve,
the cutting mechanism comprises a sealed first hydraulic oil cylinder, a motor and a rotary cutter head driven by the motor, the free end of the first hydraulic oil cylinder is fixedly connected with the tail end of the motor, the first hydraulic oil cylinder pushes the motor and the rotary cutter head to slide downwards, and the rotary cutter head cuts a pipeline under the driving of the motor and the first hydraulic oil cylinder;
the plugging mechanism comprises a second hydraulic cylinder and a plurality of groups of sealing assemblies used for plugging pipelines, the sealing assemblies are movably connected through connecting rods, the second hydraulic cylinder pushes the sealing assemblies through the connecting rods, the sealing assemblies comprise discs, rubber sleeves and hinged seats, the rubber sleeves are fixed on the discs, the hinged seats and the discs are integrally formed, and the connecting rods are movably connected with the hinged seats.
According to the technical scheme, preferably, the front end of the sealing assembly positioned at the foremost end is provided with the guide wheel, and the guide wheel is hinged with the sealing assembly through the torsion spring and the rotating shaft.
According to the technical scheme, preferably, the rotary cutter head is of a cylindrical structure with an opening at the lower part, teeth are arranged on the edge of the lower side of the cylindrical structure, and the middle part of the rotary cutter head is fixedly connected with the motor.
According to the technical scheme, preferably, the pipeline to be replaced is provided with the one-way check valve, and the one-way check valve is connected with the cutting mechanism through a pipeline.
According to the above solution, preferably, the diameter of the rotary cutter head is larger than the diameter of the pipe.
The utility model has the advantages that: the sleeve of the utility model is sleeved on two sides of the pipeline to be replaced, the cutting mechanism cuts a through hole on the pipeline in the sleeve, and then the gate valve closes the through hole to prevent oil from leaking out of the through hole; with cutting mechanism change for shutoff mechanism, the multiunit seal assembly of shutoff mechanism is in exploring oil pipeline under first hydraulic cylinder's promotion to realize the shutoff, treat to change pipeline both sides this moment and realize the shutoff, can carry out local quick replacement, thereby effectively improve and treat the change efficiency and the reduce cost of changing oil pipeline.
Drawings
Fig. 1 shows a schematic structural diagram during cutting according to an embodiment of the present invention.
Fig. 2 shows a schematic structural diagram during plugging according to an embodiment of the present invention.
In the figure: 1. a sleeve; 101. a flange plate; 2. a gate valve; 3. a cutting mechanism; 301. a first housing; 302. a first hydraulic cylinder; 303. a motor; 304. rotating the cutter head; 3041. teeth; 4. A plugging mechanism; 401. a second housing; 402. a second hydraulic cylinder; 403. a seal assembly; 4031. a disc; 4032. a rubber sleeve; 4033. a hinged seat; 404. a connecting rod; 5. a pipeline; 6. locking the bolt; 7. a guide wheel; 8. a one-way check valve; 9. a pipeline.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments.
As shown in the figure, the utility model provides an in-pipe plugging device of an oil pipeline, which comprises sleeves 1, a gate valve 2, a cutting mechanism 3 and a plugging mechanism 4 which are used alternately, two groups of sleeves 1 are respectively sleeved on two sides of a pipeline 5 to be replaced and are connected with the oil pipeline in a sealing way by welding and other processes, a communicated flange plate 101 is fixedly arranged in the middle of each sleeve 1, one side of the gate valve 2 is connected with the flange plate 101 of the sleeve 1 in a sealing way by a locking bolt 6, when in use, the cutting mechanism 3 and the plugging mechanism 4 are alternately connected with the other side of the gate valve 2 in a sealing way, wherein,
the cutting mechanism 3 comprises a sealed first shell 301, a first hydraulic oil cylinder 302, a motor 303 and a rotary cutter head 304 driven by the motor 303, the first hydraulic oil cylinder 302, the motor 303 and the rotary cutter head 304 driven by the motor 303 are all positioned in the first shell 301, the free end of the first hydraulic oil cylinder 302 is fixedly connected with the tail end of the motor 303, the first hydraulic oil cylinder 302 pushes the motor 303 and the rotary cutter head 304 to slide downwards, the rotary cutter head 304 is driven by the motor 303 and the first hydraulic oil cylinder 302 to cut an oil pipeline, and the rotary cutter head 304 moves in a sealed area filled with oil;
the plugging mechanism 4 comprises a second shell 401, a second hydraulic cylinder 402 and a plurality of groups of sealing assemblies 403 for plugging oil pipelines, the sealing assemblies 403 are movably connected through connecting rods 404, the second hydraulic cylinder 402 pushes the sealing assemblies 403 through the connecting rods 404, each sealing assembly 403 comprises a circular disc 4031, a rubber sleeve 4032 and a hinge base 4033, the rubber sleeve 4032 is fixed on the circular disc 4031, the hinge base 4033 and the circular disc 4031 are integrally formed, and the connecting rods 404 are movably connected with the hinge base 4033.
The specific working process is as follows:
the working personnel sleeve the two groups of sleeves 1 on two sides of the pipeline 5 to be replaced, and the sleeves 1 are hermetically connected with the oil pipeline through welding and other processes; one side of the gate valve 2 is hermetically connected with a flange plate 101 of the sleeve 1 through a locking bolt 6; the cutting mechanism 3 is connected with the other side of the gate valve 2 in a sealing mode, then the cutting mechanism 3 is started, the motor 303 drives the rotary cutter head 304 to rotate rapidly, and meanwhile the first hydraulic oil cylinder 302 pushes the motor 303 and the rotary cutter head 304 to cut an oil pipeline; after the cutting is finished, the first hydraulic oil cylinder 302 contracts the motor 303 and the rotary cutter head 304, and the gate valve 2 is closed to prevent oil in the oil pipeline from leaking; and (3) replacing the cutting mechanism 3 of the plugging mechanism 4, opening the gate valve 2, and pushing a plurality of groups of sealing assemblies 403 into the oil pipeline by a second hydraulic cylinder 402 of the plugging mechanism 4 so as to plug the pipeline 5.
According to the above embodiment, preferably, the front end of the sealing assembly 403 at the foremost end is provided with the guide wheel 7, the guide wheel 7 is hinged to the sealing assembly 403 through a torsion spring and a rotating shaft, and the guide wheel 7 can enable the sealing assembly 403 to keep sliding vertically and forwards under the action of the torsion spring, so that the blocking effect of the sealing assembly 403 is improved.
According to the above embodiment, preferably, since the cut oil pipeline plate is an arc-shaped plate, the rotary cutter head 304 is a cylindrical structure with an open lower portion, the lower edge of the cylindrical structure is provided with the teeth 3041, and the middle portion of the rotary cutter head 304 is fixedly connected with the motor 303, so that a circular through hole can be easily cut.
According to the above embodiment, preferably, the pipeline 5 to be replaced is provided with the one-way check valve 8, the one-way check valve 8 is connected with the cutting mechanism 3 through the pipeline 9, before the oil pipeline is cut, oil is input to the movable area of the rotary cutter head 304 of the cutting mechanism 3 through the one-way check valve 8, so that the sealing effect in the cutting process can be ensured, and safety accidents can be prevented.
According to the above embodiment, the diameter of the rotary cutter head 304 is preferably larger than the diameter of the pipe 5, so that a through hole larger than the diameter of the pipe 5 can be cut, and the sealing assembly 403 of the plugging mechanism 4 can be conveniently placed in the pipe 5.
The utility model has the advantages that: the sleeve 1 of the utility model is sleeved on two sides of the pipeline 5 to be replaced, a through hole is cut out of the oil pipeline in the sleeve 1 through the cutting mechanism 3, and then the through hole is closed by the gate valve 2 to prevent oil from leaking out of the through hole; with cutting mechanism 3 change for shutoff mechanism 4, the multiunit seal assembly 403 of shutoff mechanism 4 is in exploring oil pipeline under the promotion of first hydraulic cylinder 302 to realize the shutoff, treat to change 5 both sides of pipeline and realize the shutoff this moment, can carry out local quick replacement, thereby effectively improve the change efficiency and the reduce cost of treating the change part pipeline.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. An in-pipe plugging device of an oil pipeline is characterized by comprising sleeves, a gate valve, and a cutting mechanism and a plugging mechanism which are used alternately, wherein the two groups of sleeves are respectively sleeved at two sides of the pipeline to be replaced, a flange is fixedly arranged on the sleeves, one side of the gate valve is in sealing connection with the flange of the sleeve through a locking bolt, the cutting mechanism and the plugging mechanism are both in sealing connection with the other side of the gate valve, wherein,
the cutting mechanism comprises a sealed first hydraulic oil cylinder, a motor and a rotary cutter head driven by the motor, the free end of the first hydraulic oil cylinder is fixedly connected with the tail end of the motor, the first hydraulic oil cylinder pushes the motor and the rotary cutter head to slide downwards, and the rotary cutter head cuts an oil pipeline under the driving of the motor and the first hydraulic oil cylinder;
the shutoff mechanism includes that second hydraulic cylinder and multiunit are used for the seal assembly of shutoff oil pipeline, seal assembly passes through connecting rod swing joint, the second hydraulic cylinder promotes seal assembly through the connecting rod, seal assembly includes disc, rubber sleeve and articulated seat, the rubber sleeve is fixed on the disc, articulated seat and disc integrated into one piece, connecting rod and articulated seat swing joint.
2. The in-pipe plugging device for an oil pipeline according to claim 1, wherein a guide wheel is provided at a front end of the sealing assembly located at the foremost end, and the guide wheel is hinged with the sealing assembly through a torsion spring and a rotating shaft.
3. The in-pipe blocking device for the oil pipeline is characterized in that the rotary cutter head is a cylindrical structure with an opening at the lower part, teeth are arranged on the edge of the lower side of the cylindrical structure, and the middle part of the rotary cutter head is fixedly connected with a motor.
4. The in-pipe plugging device for an oil pipeline according to claim 3, wherein a one-way check valve is provided on the pipeline to be replaced, and the one-way check valve is connected with the cutting mechanism through the pipeline.
5. The in-pipe plugging device for oil pipeline according to claim 4, wherein said rotating cutter head has a diameter larger than the diameter of the pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921109701.3U CN210800434U (en) | 2019-07-15 | 2019-07-15 | In-pipe plugging device of oil pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921109701.3U CN210800434U (en) | 2019-07-15 | 2019-07-15 | In-pipe plugging device of oil pipeline |
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| Publication Number | Publication Date |
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| CN210800434U true CN210800434U (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921109701.3U Active CN210800434U (en) | 2019-07-15 | 2019-07-15 | In-pipe plugging device of oil pipeline |
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| CN (1) | CN210800434U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113305525A (en) * | 2021-05-08 | 2021-08-27 | 武汉科技大学 | Automatic installation mechanism for large-scale gas pipeline partition plate |
| CN115143338A (en) * | 2022-03-21 | 2022-10-04 | 北京市燃气集团有限责任公司 | Self-diversion pipeline plugging device based on hydraulic drive |
| CN115614588A (en) * | 2022-12-19 | 2023-01-17 | 烟台海上航天科技有限公司 | Sealing pressure-maintaining sealing cover of gas pipe network |
-
2019
- 2019-07-15 CN CN201921109701.3U patent/CN210800434U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113305525A (en) * | 2021-05-08 | 2021-08-27 | 武汉科技大学 | Automatic installation mechanism for large-scale gas pipeline partition plate |
| CN113305525B (en) * | 2021-05-08 | 2022-07-15 | 武汉科技大学 | Automatic installation mechanism for large-scale gas pipeline partition plate |
| CN115143338A (en) * | 2022-03-21 | 2022-10-04 | 北京市燃气集团有限责任公司 | Self-diversion pipeline plugging device based on hydraulic drive |
| CN115143338B (en) * | 2022-03-21 | 2023-09-12 | 北京市燃气集团有限责任公司 | Hydraulic drive-based self-conduction pipeline plugging device |
| CN115614588A (en) * | 2022-12-19 | 2023-01-17 | 烟台海上航天科技有限公司 | Sealing pressure-maintaining sealing cover of gas pipe network |
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