CN108302279B - Temporary emergency pipeline quick plugging equipment and construction method thereof - Google Patents
Temporary emergency pipeline quick plugging equipment and construction method thereof Download PDFInfo
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- CN108302279B CN108302279B CN201810195440.5A CN201810195440A CN108302279B CN 108302279 B CN108302279 B CN 108302279B CN 201810195440 A CN201810195440 A CN 201810195440A CN 108302279 B CN108302279 B CN 108302279B
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- 238000010276 construction Methods 0.000 title claims abstract description 9
- 230000000903 blocking effect Effects 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/10—Means for stopping flow from or in pipes or hoses
- F16L55/12—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ
- F16L55/124—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced radially into the pipe or hose
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
The invention belongs to the field of pipeline plugging, and particularly relates to temporary emergency pipeline rapid plugging equipment and a construction method thereof. The inflatable joint is connected with the inflatable rod in a socket joint way, the split limiting rings are of a two-flap structure, and are screwed up through bolts after being combined and clamped on the inflatable rod; the flange cover is connected with the flange on the plugging header through bolts, the air inflation rod penetrates through the hole on the flange cover, the flange cover is fixed, and the air inflation rod can perform axial relative movement; every two sections of the inflation rods are connected into a long rod through an inflation rod connector, the bottommost end of the plugging header is fixedly connected with the upper end of the clamping plate valve through a flange, and the lower end of the clamping plate valve is connected with a special three-way flange through a bolt; the special tee joint is welded on the pipeline, and the inflation rod passes through the supporting cylinder. The pipeline can be plugged in the shortest time, the opening on the pipeline is small, and a carrier and heavy hoisting equipment are not needed; the opening time is short, the plugging is quick, the capacity of temporarily plugging a pipeline which is stopped under a certain pressure is realized, and the time is saved.
Description
Technical Field
The invention belongs to the field of pipeline plugging, and particularly relates to temporary emergency pipeline rapid plugging equipment and a construction method thereof.
Background
The oil gas conveying pipeline may be broken and cracked in the operation process due to natural environment or human factors, so that the pipeline is stopped, and the conveying oil gas is leaked in large quantity, so that great threat is generated to the national property and personal life, and the dangerous case emergency treatment technology and means of the pipeline are particularly important to the safe maintenance of the pipeline. Typical plugging methods include barrier-bladder type plugging, folding plugging, tray type plugging, etc., which have the disadvantages of large open pore, long open pore time, complex equipment, many accessories, and the need for vehicles and lifting equipment, etc. The emergency site needs a quick, light and efficient plugging method and equipment as emergency measures to temporarily plug the pipeline, so that crude oil in the pipeline is prevented from leaking out in a large amount, and conditions are created for large-scale emergency repair plugging construction operations such as baffle-bag type plugging, folding plugging or disc plugging which are carried out subsequently and precious time is won.
Disclosure of Invention
In order to solve the technical problems, the invention provides the temporary emergency pipeline rapid plugging equipment and the construction method thereof, which can be used as equipment for temporary emergency measures, can finish rapid plugging, light use and high-efficiency operation, and can effectively solve the problems of timeliness and the like of conventional plugging, which requires a large amount of time for carrying, hoisting and complex operation in a pipeline stop state.
The technical scheme adopted by the invention is as follows:
a temporary emergency pipeline quick plugging device is characterized in that an inflatable joint (1) is connected with an inflatable rod (4) in a socket joint mode, is sealed by an O-shaped sealing ring (1-7) and is locked by a screw; the split limiting rings (2) are of two-flap structures, are screwed up through bolts after being combined and are clamped on the inflatable rods (4), and the initial position for calculating the bag conveying stroke is calculated; the flange cover (3) is connected with the flange on the plugging header (6) through bolts, the air charging rod (4) penetrates through the hole on the flange cover (3), the flange cover (3) is fixed through an O-shaped ring, and the air charging rod (4) can perform axial relative movement; every two sections of the air inflation rods (4) are connected into a long rod through an air inflation rod connector (5), and two ends of the air inflation rods (4) and the air inflation rod connector (5) are respectively provided with an air inflation hole II (4-1) and an air inflation hole III (5-1); the lowest end of the plugging header (6) is fixedly connected with the upper end of the clamping plate valve (7) through a flange, and the lower end of the clamping plate valve (7) is connected with a flange (8-1) of the special tee joint (8) through bolts; the opening and closing of the clamping plate valve (7) controls the on-off of the pipeline; the special tee joint (8) is welded on the pipeline to provide a fixed installation basis for the sandwich valve; the inflatable rod (4) passes through a supporting cylinder (9), the supporting cylinder (9) is fixed at the bottom end of the inflatable rod (4) through a bolt, the bottom end of the supporting cylinder (9) is 50mm away from the bottom end of the inflatable rod, the supporting cylinder (9) is adjusted according to the different diameters of each pipeline, and synchronously moves along with the up-and-down movement of the inflatable rod (4) in a plugging header (6), and meanwhile, longitudinal guide and transverse support are provided for the inflatable rod (3); the uppermost end of the air inflation rod (4) is connected with an air inflation joint (1), and the lowermost end is connected with a blocking bag (10); the idler wheels (1-3) are fixed on the inflatable joint body (1-4) through the pin shafts (1-1) and the cotter pins (1-2); the pressure gauge ball valve (1-5) and the inflation ball valve (1-6) are respectively connected to the inflation joint (1) through threads, and an inflation hole I (1-8) is formed in the lower end of the inflation joint (1); the two lifting rings (12) are respectively fixed in two symmetrical threaded holes on the flange cover (3), and two hooks of the chain hoist (11) are respectively hooked on the lifting rings (12), so that the chain hoist is simple and convenient to carry, a manual lifting tool chain (11-1) penetrates through the idler wheel (1-3), the length of the chain (11-1) is adjusted through the ratchet wrench (11-2), and the longitudinal stroke of the pulling out or sending out of the air inflation rod (4) is controlled.
Further, the number of the inflatable rods (4) is determined according to the bag conveying travel, and the inflatable rods (4) and the inflatable rod connectors (5) are connected and installed in a double-end socket mode.
Further, the number of the plugging headers (6) is determined according to the bag conveying travel, and every two plugging headers (6) are connected through flange bolts.
Further, the plugging bag (10) is an inflatable rubber bag with a socket, is bound by rubber bands and is sent into a pipeline, and is plugged in the pipeline after being inflated, so that liquid or gas in the pipeline is plugged; the ball valve (1-5) of the pressure gauge is opened to release pressure for exhausting, and after the gas is exhausted, the plugging bag (10) is pulled out through the chain block (11).
Further, the first inflation hole (1-8), the second inflation hole (4-1) and the third inflation hole (5-1) have the same inner diameter and are communicated with each other.
A construction method of temporary emergency pipeline quick plugging equipment comprises the following steps: before the pipeline is perforated, a special tee joint (8) is welded on the pipeline and is connected with the lower end of a clamping plate valve (7) through a bolt, and the upper end of the clamping plate valve (7) is connected with a perforating machine through a bolt; after the pipeline is perforated, the valve of the sandwich valve (7) is closed, the perforating machine is disassembled, and then the inflating joint (1), the split limiting ring (2), the flange cover (3), the inflating rod (4), the inflating rod connector (5), the plugging header (6), the supporting cylinder (9), the plugging bag (10) and the chain block (11) are installed; the chain block (11) pushes the inflation connector (1), the inflation rod (4), the inflation rod connector (5), the supporting cylinder (9) and the blocking bag (10) into the blocking header (6), and continues to push until the blocking bag (10) enters the pipeline and the supporting cylinder (9) reaches the position of the upper edge of the pipeline; opening an inflation ball valve (1-6), inflating the inflation joint (1) by using an air source, enabling air to enter a blocking bag (10) through an inflation rod (4), and expanding the volume of the blocking bag (10) to block a pipeline; after the large-scale plugging equipment is installed, punched and enters a pipeline to start plugging, a ball valve (1-5) of a pressure gauge is opened to release pressure, gas in a plugging bag (10) is completely discharged, the plugging bag (10) is pulled out through a chain block (11), parts above a special tee joint (8) are completely disassembled, and finally a blind plate (8-2) is screwed on the special tee joint (8) by using a bolt to complete temporary plugging.
The invention has the beneficial effects that:
the invention can plug the pipeline in the shortest time, has small holes on the pipeline, can plug the pipeline with large diameter, thereby being capable of selecting a portable and small tapping machine and being convenient for carrying; the plugging equipment is light and convenient, does not need a carrier and heavy hoisting equipment, and can be operated by bare hands; the method has the advantages of short hole opening time and quick plugging, has the capability of temporarily plugging a pipeline which is stopped under a certain pressure, is suitable for pipelines with any diameter, saves time, reduces leakage quantity, and strives for time before upper high-pressure plugging.
The plugging header in the prior art has the advantages of large volume, heavy weight and complex structure, a hydraulic cylinder is required to be lifted and installed by a hydraulic station, the plugging header is simple in structure, a split disassembly structure is adopted, manual transportation is not required, lifting is not required, manual chain pouring is required to be carried out, a hydraulic station is not required, a supporting cylinder is arranged in the plugging header, a plugging bag can be fixed at the lower end of the plugging header, the force is very high, and the bag can be plugged in a pipeline very stably.
Drawings
Fig. 1 is a schematic structural diagram of a temporary emergency pipeline rapid plugging device.
FIG. 2 is a schematic view of the structure of the pneumatic connector of the present invention.
Fig. 3 is a right side view of fig. 2 in accordance with the present invention.
Fig. 4 is a left side view of fig. 2 in accordance with the present invention.
FIG. 5 is a schematic illustration of the structure of a plugged header according to the present invention.
Fig. 6 is a left side view of fig. 5 in accordance with the present invention.
FIG. 7 is a schematic view of the structure of the inflation rod of the present invention.
Fig. 8 is a left side view of fig. 7 in accordance with the present invention.
FIG. 9 is a schematic view of the structure of the connecting head of the inflatable rod of the present invention.
Fig. 10 is a schematic diagram of the structure of the special tee joint before plugging.
Fig. 11 is a schematic structural diagram of the special tee joint after plugging.
FIG. 12 is a schematic view of the structure of the occlusion balloon of the present invention.
Fig. 13 is a schematic view of the structure of the chain block of the present invention.
Fig. 14 is a right side view of the chain block of the present invention.
In the figure: 1 is an inflation joint; 2 is a split limiting ring; 3 is a flange cover; 4 is an inflatable rod; 5 is an inflatable rod connector; 6 is a plugging header; 7 is a sandwich valve; 8 is a special tee joint; 9 is a supporting cylinder; 10 is a plugging bag; 11 is a chain block; 12 is a hanging ring; 1-1 is a pin shaft; 1-2 is cotter pin; 1-3 are rollers; 1-4 is a ball valve connected with a pressure gauge; 1-5 is a gas-filled ball valve; 1-6 are O-shaped sealing rings; 1-7 are inflation holes I; 4-1 is an inflation hole II; 5-1 is an inflation hole III; 8-1 is a flange; 8-2 is a blind plate; 11-1 is a chain; 11-2 is a ratchet wrench.
Detailed Description
Examples
As shown in figures 1-12, the temporary emergency pipeline quick plugging device comprises an inflation connector 1, a split limiting ring 2, a flange cover 3, an inflation rod 4, an inflation rod connector 5, a plugging header 6, a clamping plate valve 7, a special tee joint 8, a supporting cylinder 9, a plugging bag 10, a chain block 11, a hanging ring 12, a pin shaft 1-1, a cotter pin 1-2, a roller 1-3, an inflation connector body 1-4, a pressure gauge ball valve 1-5, an inflation ball valve 1-6, an O-shaped sealing ring 1-7, an inflation hole 1-8, an inflation hole two 4-1, an inflation hole three 5-1, a flange 8-1, a blind plate 8-2, a chain 11-1 and a ratchet wrench 11-2; the inflatable joint 1 is connected with the inflatable rod 4 in a socket joint mode, is sealed by using O-shaped sealing rings 1-7 and is locked by using screws; the split limiting rings 2 are of two-flap structures, are screwed up through bolts after being combined and are clamped on the inflatable rods 4, and the initial position for calculating the bag conveying stroke is calculated; the flange cover 3 is connected with a flange on the plugging header 6 through bolts, the air inflation rod 4 penetrates through a hole on the flange cover 3, the flange cover 3 and the hole are sealed through an O-shaped ring, the flange cover 3 is fixed, and the air inflation rod 4 can perform axial relative movement; every two sections of the air inflation rods 4 are connected into a long rod through an air inflation rod connector 5, and two ends of the air inflation rods 4 and the air inflation rod connector 5 are respectively provided with an air inflation hole II 4-1 and an air inflation hole III 5-1; the lowest end of the plugging header 6 is fixedly connected with the upper end of the clamping plate valve 7 through a flange, and the lower end of the clamping plate valve 7 is connected with the flange 8-1 of the special tee joint 8 through bolts; the opening and closing of the clamping plate valve 7 controls the on-off of the pipeline; the special tee joint 8 is welded on the pipeline to provide a fixed installation basis for the sandwich valve; the inflation rod 4 passes through the supporting cylinder 9, the supporting cylinder 9 is fixed at the bottom end of the inflation rod 4 through bolts, the bottom end of the supporting cylinder 9 is 50mm away from the bottom end of the inflation rod, the supporting cylinder 9 is adjusted according to the different diameters of each pipeline, and synchronously moves along with the up-and-down movement of the inflation rod 4 in the plugging header 6, and meanwhile, longitudinal guide and transverse support are provided for the inflation rod 3; the uppermost end of the inflation rod 4 is connected with the inflation joint 1, and the lowermost end is connected with the plugging bag 10; the roller 1-3 is fixed on the inflatable joint body 1-4 through a pin shaft 1-1 and a cotter pin 1-2; the pressure gauge ball valve 1-5 and the inflation ball valve 1-6 are respectively connected to the inflation joint 1 through threads, and the lower end of the inflation joint 1 is provided with an inflation hole I1-8; the number of the air inflation rods 4 is determined according to the bag feeding travel, and the air inflation rods 4 and the air inflation rod connectors 5 are connected and installed by adopting double-end sockets; the number of the plugging headers 6 is determined according to the bag feeding travel, and every two plugging headers 6 are connected through flange bolts; the plugging bag 10 is an inflatable rubber bag with a socket, is bound by rubber bands and is sent into a pipeline, and is plugged in the pipeline after being inflated, so that liquid or gas in the pipeline is plugged; the ball valve 1-5 of the pressure gauge is opened to release pressure for exhausting, and after all the gas is exhausted, the plugging bag 10 is pulled out through the chain block 11; the first air charging hole 1-8, the second air charging hole 4-1 and the third air charging hole 5-1 have the same inner diameter and are communicated with each other.
As shown in fig. 13-14, two hanging rings 12 are respectively fixed in two symmetrical threaded holes on the flange cover 3, and two hooks of the chain block 11 are respectively hooked on the hanging rings 12, so that a simple and portable manual lifting tool chain 11-1 passes through the roller 1-3, and the length of the chain 11-1 is adjusted through the ratchet wrench 11-2, thereby controlling the longitudinal stroke of pulling out or sending the inflatable rod 4.
A construction method of temporary emergency pipeline quick plugging equipment comprises the following steps: before the pipeline is perforated, a special tee joint 8 is welded on the pipeline and is connected with the lower end of a clamping plate valve 7 through a bolt, and the upper end of the clamping plate valve 7 is connected with a perforating machine through a bolt; after the pipeline is perforated, the valve of the sandwich valve 7 is closed, the perforating machine is disassembled, and then the inflating joint 1, the split limiting ring 2, the flange cover 3, the inflating rod 4, the inflating rod connector 5, the plugging header 6, the supporting cylinder 9, the plugging bag 10 and the chain block 11 are installed; the chain block 11 pushes the inflation connector 1, the inflation rod 4, the inflation rod connector 5, the support cylinder 9 and the blocking bag 10 into the blocking header 6, and continues to push until the blocking bag 10 enters the pipeline and the support cylinder 9 reaches the position of the upper edge of the pipeline; opening an inflation ball valve 1-6, inflating the inflation joint 1 by using an air source, enabling air to enter the plugging bag 10 through the inflation rod 4, and expanding the volume of the plugging bag 10 to plug a pipeline; after the large-scale plugging equipment is installed, punched and enters a pipeline to start plugging, the ball valve 1-5 of the pressure gauge is opened to release pressure, gas in the plugging bag 10 is completely discharged, the plugging bag 10 is pulled out through the chain block 11, the part above the special tee joint 8 is completely disassembled, and finally the blind plate 8-2 is screwed on the special tee joint 8 by using bolts to complete temporary plugging.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (4)
1. A temporary emergency pipeline quick plugging device comprises an inflation connector (1), a split limiting ring (2), a flange cover (3), an inflation rod (4), an inflation rod connector (5), a plugging header (6), a clamping plate valve (7), a special tee joint (8), a supporting cylinder (9), a plugging bag (10), a chain block (11), a lifting ring (12), a pin shaft (1-1), a cotter pin (1-2), a roller (1-3), an inflation connector body (1-4), a pressure gauge ball valve (1-5), an inflation ball valve (1-6), an O-shaped sealing ring (1-7), an inflation hole I (1-8), an inflation hole II (4-1), an inflation hole III (5-1), a flange (8-1), a blind plate (8-2), a chain (11-1) and a ratchet wrench (11-2); the method is characterized in that: the inflatable joint (1) is connected with the inflatable rod (4) in a socket joint mode, is sealed by using O-shaped sealing rings (1-7), and is locked by using screws; the split limiting rings (2) are of two-flap structures, are screwed up through bolts after being combined and are clamped on the inflatable rods (4), and the initial position for calculating the bag conveying stroke is calculated; the flange cover (3) is connected with the flange on the plugging header (6) through bolts, the air charging rod (4) penetrates through the hole on the flange cover (3), the flange cover (3) is fixed through an O-shaped ring, and the air charging rod (4) can perform axial relative movement; every two sections of the air inflation rods (4) are connected into a long rod through an air inflation rod connector (5), and two ends of the air inflation rods (4) and the air inflation rod connector (5) are respectively provided with an air inflation hole II (4-1) and an air inflation hole III (5-1); the lowest end of the plugging header (6) is fixedly connected with the upper end of the clamping plate valve (7) through a flange, and the lower end of the clamping plate valve (7) is connected with a flange (8-1) of the special tee joint (8) through bolts; the special tee joint (8) is welded on the pipeline; the inflation rod (4) passes through the supporting cylinder (9), the supporting cylinder (9) is fixed at the bottom end of the inflation rod (4) through a bolt, and the supporting cylinder (9) moves synchronously along with the up-down movement of the inflation rod (4) in the plugging header (6); the uppermost end of the air inflation rod (4) is connected with an air inflation joint (1), and the lowermost end is connected with a blocking bag (10); the idler wheels (1-3) are fixed on the inflatable joint body (1-4) through the pin shafts (1-1) and the cotter pins (1-2); the pressure gauge ball valve (1-5) and the inflation ball valve (1-6) are respectively connected to the inflation joint (1) through threads, and an inflation hole I (1-8) is formed in the lower end of the inflation joint (1); two hanging rings (12) are arranged and respectively fixed in two symmetrical threaded holes on the flange cover (3), and two hooks of the chain block (11) are respectively hooked on the hanging rings (12); the chain (11-1) passes through the roller (1-3), and the length of the chain (11-1) is adjusted by the ratchet wrench (11-2), so that the longitudinal stroke of the air charging rod (4) is controlled to be pulled out or sent out;
the number of the air inflation rods (4) is determined according to the bag feeding travel, and the air inflation rods (4) and the air inflation rod connectors (5) are connected and installed by adopting double-end bellmouths; the number of the plugging headers (6) is determined according to the bag conveying travel, and every two plugging headers (6) are connected through flange bolts.
2. A temporary emergency pipeline rapid plugging apparatus according to claim 1, wherein: the blocking bag (10) is an inflatable rubber bag with a socket, is bound by rubber bands and is sent into a pipeline, and is blocked in the pipeline after being inflated to block liquid or gas in the pipeline.
3. A temporary emergency pipeline rapid plugging apparatus according to claim 1, wherein: the first inflation hole (1-8), the second inflation hole (4-1) and the third inflation hole (5-1) have the same inner diameter and are communicated with the inflation joint (1).
4. A construction method of temporary emergency pipeline quick plugging equipment is characterized by comprising the following steps: the method comprises the following steps: before the pipeline is perforated, a special tee joint (8) is welded on the pipeline and is connected with the lower end of a clamping plate valve (7) through a bolt, and the upper end of the clamping plate valve (7) is connected with a perforating machine through a bolt; after the pipeline is perforated, the valve of the sandwich valve (7) is closed, the perforating machine is disassembled, and then the inflating joint (1), the split limiting ring (2), the flange cover (3), the inflating rod (4), the inflating rod connector (5), the plugging header (6), the supporting cylinder (9), the plugging bag (10) and the chain block (11) are installed; the chain block (11) pushes the inflation connector (1), the inflation rod (4), the inflation rod connector (5), the supporting cylinder (9) and the blocking bag (10) into the blocking header (6), and continues to push until the blocking bag (10) enters the pipeline and the supporting cylinder (9) reaches the position of the upper edge of the pipeline; opening an inflation ball valve (1-6), inflating the inflation joint (1) by using an air source, enabling air to enter a blocking bag (10) through an inflation rod (4), and expanding the volume of the blocking bag (10) to block a pipeline; after the large-scale plugging equipment is installed, punched and enters a pipeline to start plugging, a ball valve (1-5) of a pressure gauge is opened to release pressure, gas in a plugging bag (10) is completely discharged, the plugging bag (10) is pulled out through a chain block (11), parts above a special tee joint (8) are completely disassembled, and finally a blind plate (8-2) is screwed on the special tee joint (8) by using a bolt to complete temporary plugging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810195440.5A CN108302279B (en) | 2018-03-09 | 2018-03-09 | Temporary emergency pipeline quick plugging equipment and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810195440.5A CN108302279B (en) | 2018-03-09 | 2018-03-09 | Temporary emergency pipeline quick plugging equipment and construction method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN108302279A CN108302279A (en) | 2018-07-20 |
| CN108302279B true CN108302279B (en) | 2024-04-02 |
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| CN201810195440.5A Active CN108302279B (en) | 2018-03-09 | 2018-03-09 | Temporary emergency pipeline quick plugging equipment and construction method thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094593A (en) * | 2019-05-05 | 2019-08-06 | 中国石油化工股份有限公司 | The quick slip casting bellows plugging technology of oil pipeline |
| CN112304579B (en) * | 2019-07-25 | 2022-10-04 | 中国石油天然气集团有限公司 | Equipment and method for open hole plugging verification test |
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| CN2247266Y (en) * | 1996-04-12 | 1997-02-12 | 辽河石油勘探局勘察设计研究院 | Pressured cylindrical type pipe blocking machine with stopping transportation |
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| CN208011147U (en) * | 2018-03-09 | 2018-10-26 | 徐州实华管道特种作业有限公司 | Emergent pipeline quick blocking equipment temporarily |
-
2018
- 2018-03-09 CN CN201810195440.5A patent/CN108302279B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1452232A (en) * | 1973-09-14 | 1976-10-13 | Sawyer W A | Pipeline plugging apparatus and method |
| CN1127862A (en) * | 1994-04-08 | 1996-07-31 | 蒂格霍尔姆股份公司 | Blocking method for pipes |
| CN2247266Y (en) * | 1996-04-12 | 1997-02-12 | 辽河石油勘探局勘察设计研究院 | Pressured cylindrical type pipe blocking machine with stopping transportation |
| CN103016898A (en) * | 2012-12-17 | 2013-04-03 | 天津卓达管道机械制造有限公司 | Rubber ball sealer embedded with butterfly plate |
| CN203363140U (en) * | 2013-07-24 | 2013-12-25 | 大连华锐重工集团股份有限公司 | Hollow pipe sealing device |
| CN203718275U (en) * | 2014-01-26 | 2014-07-16 | 杨红星 | Water plugging device used for check hole of drainage pipeline |
| CN204201367U (en) * | 2014-10-28 | 2015-03-11 | 中船重工（沈阳）辽海输油设备有限公司 | A kind of small-bore pipeline on-line production send blocking device |
| CN208011147U (en) * | 2018-03-09 | 2018-10-26 | 徐州实华管道特种作业有限公司 | Emergent pipeline quick blocking equipment temporarily |
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| Publication number | Publication date |
|---|---|
| CN108302279A (en) | 2018-07-20 |
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