CN110067909A - A kind of pipeline emergency maintenance sealing device and method - Google Patents
A kind of pipeline emergency maintenance sealing device and method Download PDFInfo
- Publication number
- CN110067909A CN110067909A CN201910457388.0A CN201910457388A CN110067909A CN 110067909 A CN110067909 A CN 110067909A CN 201910457388 A CN201910457388 A CN 201910457388A CN 110067909 A CN110067909 A CN 110067909A
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- Prior art keywords
- half flange
- flange
- pipeline
- sealing element
- extended segment
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- 238000007789 sealing Methods 0.000 title claims abstract description 84
- 238000012423 maintenance Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000006835 compression Effects 0.000 claims abstract description 9
- 238000007906 compression Methods 0.000 claims abstract description 9
- 238000011161 development Methods 0.000 claims description 4
- 239000007770 graphite material Substances 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 claims description 2
- 230000002035 prolonged effect Effects 0.000 claims 1
- 230000002265 prevention Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000003471 anti-radiation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000003466 welding 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
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/168—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe
- F16L55/17—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by means of rings, bands or sleeves pressed against the outside surface of the pipe or hose
- F16L55/172—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by means of rings, bands or sleeves pressed against the outside surface of the pipe or hose the ring, band or sleeve being tightened by a tangentially arranged threaded pin and a nut
- F16L55/1725—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by means of rings, bands or sleeves pressed against the outside surface of the pipe or hose the ring, band or sleeve being tightened by a tangentially arranged threaded pin and a nut in which the threaded pin is rigid with the hose encircling member
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
The invention discloses a kind of pipeline emergency maintenance sealing device and methods, if described device includes: half flange of upper left, half flange of lower-left, half flange of upper right, half flange of bottom right, sealing element, bolt stem；Half flange of upper left and half flange of lower-left are bolted to form left flange；Half flange of upper right and half flange of bottom right are bolted to form right flange；Left flange and right flange hold half flange of upper left tightly with Pipe installing respectively and the compression load for forming vertical direction to sealing element are bolted with half flange of bottom right and fastens to sealing element with half flange of lower-left, half flange of upper right；Half flange of upper left is bolted the compression load for forming horizontal direction to sealing element with half flange of bottom right and fastens to sealing element with half flange of upper right, half flange of lower-left；The present apparatus solves pipeline prevention and emergency maintenance technical problem under small space, high temperature and pressure harsh environment, is pipeline-like parts for maintenance, provides indispensable device and method.
Description
Technical field
The present invention relates to pipeline maintenance fields, and in particular, to a kind of pipeline emergency maintenance sealing device and method.
Background technique
Be on active service under high temperature, high pressure, the bad working environments of the radiation for a long time rate that breaks down of bearing pipe base part is higher, once
Pipeline leaks, and there is very big risk for the safe operation of equipment.The maintenance of such pipeline is long in the prevalence of the period,
The features such as costly.
Come from presently disclosed document, most pipeline maintenances both for conventional pipeline, using conventional method, it is such as straight
Welding is connect, will receive the items such as pipe wall thickness, soldering appliance and material preparation, operating space and welder technology level
Part limitation；Pipe end adds pipe cap or valve, and the implementation of this method is more complex, needs to carry out original pipeline certain destruction；Tube wall
Adding holding card, this method is suitable for normal temperature and pressure occasion, and it is easy to operate, but since sealing element is easy to aging, the time cycle used has
Limitation；More renew pipe, this method is more complex, needs to remove old pipe, installs new pipe
Summary of the invention
To implement the emergency maintenance to pipe leakage, realizes Management of Pipeline Mechanical Equipment maintenance process demand, solve small space, high temperature
Pipeline prevention and emergency maintenance technical problem, develop a set of mechanically-sealing apparatus and installation method, for pipe under high pressure harsh environment
The maintenance of road base part, provides indispensable device and method.
To the defect of some special weld seams and pipeline be badly in need of it is a kind of prevention, emergency maintenance measure, realize such defect repair
Quick emergency response, guarantee the safe operation of equipment.For the leakage of pipeline, a set of mechanically-sealing apparatus is had developed, is being lacked
Sealing ring is installed around sunken, certain pretightning force is provided by sealing device, sealing ring is compressed, formation one is closed
Defect is isolated from the outside by space.
Method used in the present invention be different from existing method, using flange-type structure, upper and lower two groups of flanges respectively with pipe
Road installation is held tightly, and high temperature high voltage resistant sealing element is located at pipe leakage point outer surface, flange inner surface, the bolt between the flange of left and right
Compressing force is provided, sealing element is pressed on leakage point, the leakage sealed of pipeline is realized.Sealing device design principle is correct,
Process stability that is reasonable in design, establishing is strong, easily operated, and maintenance cycle is short, especially suitable for needing dimension of meeting an urgent need
The occasion repaired.
For achieving the above object, aspect provides a kind of pipeline emergency maintenance sealing device to the application, described
Device includes:
If half flange of upper left, half flange of lower-left, half flange of upper right, half flange of bottom right, sealing element, bolt stem；Half method of upper left
It is blue to be bolted to form left flange with half flange of lower-left；Half flange of upper right and half flange of bottom right are bolted to form the right side
Flange；Left flange and right flange are held tightly with Pipe installing respectively, and first extended to the right is equipped on the right side of the upper end of half flange of upper left
Extended segment；The second extended segment extended to the right is equipped on the right side of half flange lower end of lower-left；Be equipped on the left of the lower end of half flange of upper right to
The third extended segment of left extension；The 4th extended segment extended to the left is equipped on the left of half flange lower end of bottom right；Sealing element is fitted in pipe
Road leakage point outer surface, and sealing element is located in the gap between the extended segment and pipeline external surface of left flange；Third extended segment
It is inserted into the gap between the first extended segment and pipeline and the 4th extended segment and is inserted into the gap between the second extended segment and pipeline；
Half flange of upper left and half flange of lower-left, half flange of upper right and half flange of bottom right, which are bolted, forms vertical direction to sealing element
Compression load sealing element is fastened；Half flange of upper left passes through with half flange of upper right, half flange of lower-left and half flange of bottom right
The compression load for forming horizontal direction to sealing element is bolted to fasten sealing element.
Further, half flange of upper left and half flange of lower-left are symmetrical above and below, half flange of upper right with it is right above and below half flange of bottom right
Claim.
Further, described device further includes the washer and nut used corresponding with bolt, and washer is located at bolt and flange
Between, nut is mounted on bolt end.
Further, the pipeline is bearing pipe, and the pressure of the bearing pipe is 0~17.2Mpa, and pipe temperature is
0~350 DEG C.
Further, the distance between the pipeline and barrier or gap are greater than 1.5 times of pipe radius.
Further, the sealing element is sealing ring, and internal diameter is matched with outer diameter tube size, the first extended segment and pipeline
Between gap and the second extended segment and pipeline between gap size it is identical, and matched with the thickness of sealing ring.
Further, the development length of the first extended segment and the second extended segment is equal, and the first extended segment and second extends
The development length of section is all larger than the length of sealing element.
Further, sealing element is made of graphite material.
Further, the gap size between the height dimension of third extended segment and the first extended segment and pipeline matches, the
Gap size between the height dimension of four extended segments and the second extended segment and pipeline matches.
On the other hand, present invention also provides a kind of pipeline emergency maintenance encapsulating method, the method is based on front institute
The pipeline emergency maintenance sealing device stated, which comprises
The scheduled exterior surface area of leakage point is removed, half flange of upper left, half flange of lower-left is made to be positioned at leakage point preset areas
Domain, and be installed together half flange of upper left, half flange of lower-left by bolt group, it is close to pipeline outer wall；
Sealing element is inserted into the gap between pipeline and half flange of upper left, half flange of lower-left, by sealing element seam and upper left
Half flange, half flanged seam of lower-left are staggered；
Half flange of upper right, half flange of bottom right are installed, and are mounted on half flange of upper right and half flange of bottom right by bolt group
Together, it is close to pipeline outer wall；
By bolt group by half flange of upper left and half flanged joint of half flange of upper right, half flange of lower-left and bottom right；
Preset pretightning force is symmetrically applied to bolt group, is formed on sealing element and compresses negative load.
One or more technical solution provided by the present application, has at least the following technical effects or advantages:
(1) present apparatus realizes the test of every experiments of sealing performance, and device is stable, and precision meets design requirement.
(2) present apparatus structure is simply portable, easy to operate, and can meet an urgent need dimension using the pipeline under high temperature and pressure harsh environment
It repairs.
(3) pipe leakage maintenance is carried out using the present apparatus and method, compares other method for maintaining, there is that maintenance cycle is short, behaviour
Make simple, high reliability.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention；
Fig. 1 is pipeline maintenance schematic diagram of sealing device (cross-sectional view)；
Fig. 2 is pipeline maintenance schematic diagram of sealing device (main view)；
Fig. 3 a- Fig. 3 c is flange A structural schematic diagram；
Fig. 4 a- Fig. 4 c is flange C-structure schematic diagram；
Wherein, 1 it is pipeline, 2 be flange A, 3 be flange D, 4 be flange C, 5 be sealing element, 6 be flange B, 7 is bolt, 8
It is washer for washer, 9,10 is bolt.
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real
Applying mode, the present invention is further described in detail.It should be noted that in the case where not conflicting mutually, the application's
Feature in embodiment and embodiment can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also
Implemented with being different from the other modes being described herein in range using other, therefore, protection scope of the present invention is not by under
The limitation of specific embodiment disclosed in face.
Pipeline sealing device is as shown in Figure 1, 2.The present invention describes: a kind of pipeline emergency maintenance sealing device, can
Realize the prevention and emergency maintenance of high-temperature and pressure pipeline leakage, main structure includes mounting flange, sealing element, bolt, washer
Deng.Wherein sealing element is that high temperature resistant, corrosion-resistant, anti-radiation graphite material fabricate.
The present apparatus is directed to the emergency maintenance of high-temperature and pressure pipeline, and innovation has developed Purely mechanical sealing device and installation side
Method.Present apparatus installation is easy to operate, makes sealing element using high temperature resistant, corrosion-resistant, radiation resistance material, can be used for bearing pipe and let out
The prevention and emergency maintenance of leakage.The present apparatus uses button type flange arrangement, holds tightly in vertical direction and pipeline, leads in the horizontal direction
It crosses bolt offer pretightning force to compress sealing element, solves whole device and pipeline fixed constraint problem.
When pipeline leaks, using the maintenance process of the present apparatus are as follows:
(1) a leakage point scheduled exterior surface area nearby is removed, is positioned at flange A, flange B near leakage point, and
It is installed together by bolt group 10, washer sets 9, is adjacent to pipeline outer wall；
(2) two pieces sealing element 5 is inserted into the gap between pipeline and flange respectively, by 5 seam of sealing element and flange A, method
Blue B seam is staggered；
(3) installation the right flange D, flange C, and be installed together by bolt group 10, washer sets 9, it is adjacent to pipeline outer wall；
(4) flange A is connected with flange D, flange C with flange B by multiple bolts 7, and the shape on the sealing element 5
At compression load；
(5) preset pretightning force is symmetrically applied to bolt group 7, forms compression load on the sealing element 5.
This application involves a kind of sealing device specials, the emergency maintenance for the leakage of pipeline base part.The device uses method
Blue formula structure, the parts such as Zuo Falan, right flange, sealing element, bolt, two groups of flanges are held tightly with Pipe installing respectively, sealing element position
In pipe leakage point outer surface, flange inner surface, the bolt between left and right flanges provides compressing force, and sealing element is pressed on and is let out
On leak source, the leakage sealed of pipeline is realized.
The present apparatus is used for the emergency maintenance of pipeline base part leakage, and the sealing device includes: two left flanges, two right sides
Flange, the flange include a semicylinder and a step, and a sealing element contacts the outer surface of leakage pipe, to prevent from leaking,
One group of bolt is used to hold tightly flange and pipeline, and one group of flange is used to fastening load passing to sealing element from flange.
The corresponding method of the present apparatus includes the following steps: to remove near leakage point for repairing the leakage of pipeline base part
One scheduled exterior surface area is positioned at two left flanges near leakage point, and is fitted together by bolt, by a sealing
Part is inserted into the gap between pipeline and flange, and left and right flange is connected by two flanges of installation the right by multiple connectors, and
Compression load is formed on the sealing element, to prevent from leaking again.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of pipeline emergency maintenance sealing device, which is characterized in that described device includes:
If half flange of upper left, half flange of lower-left, half flange of upper right, half flange of bottom right, sealing element, bolt stem；Half flange of upper left with
Half flange of lower-left is bolted to form left flange；Half flange of upper right and half flange of bottom right are bolted to form right method
It is blue；Left flange and right flange are held tightly with Pipe installing respectively, and first extended to the right is equipped on the right side of the upper end of half flange of upper left and is prolonged
Stretch section；The second extended segment extended to the right is equipped on the right side of half flange lower end of lower-left；It is equipped with to the left on the left of the lower end of half flange of upper right
The third extended segment of extension；The 4th extended segment extended to the left is equipped on the left of half flange lower end of bottom right；Sealing element is fitted in pipeline
Leakage point outer surface, and sealing element is located in the gap between the extended segment and pipeline external surface of left flange；It inserts third extended segment
The gap between the second extended segment and pipeline is inserted into the gap and the 4th extended segment entered between the first extended segment and pipeline；It is left
Upper half flange and half flange of lower-left, half flange of upper right and half flange of bottom right, which are bolted, forms vertical direction to sealing element
Compression load fastens sealing element；Half flange of upper left and half flange of upper right, half flange of lower-left and half flange of bottom right pass through spiral shell
The compression load for connecing and forming horizontal direction to sealing element is tethered to fasten sealing element.
2. pipeline emergency maintenance sealing device according to claim 1, which is characterized in that half flange of upper left and lower-left half
Flange is symmetrical above and below, and half flange of upper right and half flange of bottom right are symmetrical above and below.
3. pipeline emergency maintenance sealing device according to claim 1, which is characterized in that described device further includes and spiral shell
The corresponding washer and nut used of bolt, for washer between bolt and flange, nut is mounted on bolt end.
4. pipeline emergency maintenance sealing device according to claim 1, which is characterized in that the pipeline is pressure-bearing pipe
Road, the pressure of the bearing pipe are 0~17.2Mpa, and pipe temperature is 0~350 DEG C.
5. pipeline emergency maintenance sealing device according to claim 1, which is characterized in that the pipeline and barrier it
Between distance or gap be greater than 1.5 times of pipe radius.
6. pipeline emergency maintenance sealing device according to claim 1, which is characterized in that the sealing element is sealing
Ring, internal diameter are matched with outer diameter tube size, between the gap and the second extended segment and pipeline between the first extended segment and pipeline
Gap size it is identical, and matched with the thickness of sealing ring.
7. pipeline emergency maintenance sealing device according to claim 1, which is characterized in that prolong the first extended segment and second
The development length for stretching section is equal, and the development length of the first extended segment and the second extended segment is all larger than the length of sealing element.
8. pipeline emergency maintenance sealing device according to claim 1, which is characterized in that sealing element is graphite material system
At.
9. pipeline emergency maintenance sealing device according to claim 1, which is characterized in that the height gauge of third extended segment
The very little gap size between the first extended segment and pipeline matches, the height dimension of the 4th extended segment and the second extended segment and pipeline
Between gap size matching.
10. a kind of pipeline emergency maintenance encapsulating method, the method is based on pipeline any one of in claim 1-9
Emergency maintenance sealing device, which is characterized in that the described method includes:
The scheduled exterior surface area of leakage point is removed, half flange of upper left, half flange of lower-left is made to be positioned at leakage point predeterminable area, and
Half flange of upper left, half flange of lower-left are installed together by bolt group, are close to pipeline outer wall；
Sealing element is inserted into the gap between pipeline and half flange of upper left, half flange of lower-left, by sealing element seam and half method of upper left
Blue, half flanged seam of lower-left is staggered；
Half flange of upper right, half flange of bottom right are installed, and are installed together half flange of upper right and half flange of bottom right by bolt group,
It is close to pipeline outer wall；
By bolt group by half flange of upper left and half flanged joint of half flange of upper right, half flange of lower-left and bottom right；
Preset pretightning force is symmetrically applied to bolt group, is formed on sealing element and compresses negative load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910457388.0A CN110067909B (en) | 2019-05-29 | 2019-05-29 | Sealing device and method for emergency maintenance of pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910457388.0A CN110067909B (en) | 2019-05-29 | 2019-05-29 | Sealing device and method for emergency maintenance of pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110067909A true CN110067909A (en) | 2019-07-30 |
| CN110067909B CN110067909B (en) | 2021-04-23 |
Family
ID=67372036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910457388.0A Active CN110067909B (en) | 2019-05-29 | 2019-05-29 | Sealing device and method for emergency maintenance of pipeline |
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| Country | Link |
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| CN (1) | CN110067909B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD273878A1 (en) * | 1988-07-08 | 1989-11-29 | Bkw E Weinert Deuben Veb | DEVICE FOR ELIMINATING HAVARIES ON PIPES |
| US6276726B1 (en) * | 1999-09-03 | 2001-08-21 | Ronald A. Daspit | Pipe line repair anti-corrosion electrically isolated clamp-coupling |
| US7617843B1 (en) * | 2008-09-24 | 2009-11-17 | Al-Oriar Abdulaziz K | Split sleeve clamp assembly |
| CN206112390U (en) * | 2016-08-31 | 2017-04-19 | 焦发兆 | Environment -friendly ha fujie |
| CN206369047U (en) * | 2016-12-03 | 2017-08-01 | 许川 | A kind of material filling type Pipe leakage stopper |
| CN207621569U (en) * | 2017-11-27 | 2018-07-17 | 浙江海普管业有限公司 | High sealing water pipe first-aid repairing device |
-
2019
- 2019-05-29 CN CN201910457388.0A patent/CN110067909B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD273878A1 (en) * | 1988-07-08 | 1989-11-29 | Bkw E Weinert Deuben Veb | DEVICE FOR ELIMINATING HAVARIES ON PIPES |
| US6276726B1 (en) * | 1999-09-03 | 2001-08-21 | Ronald A. Daspit | Pipe line repair anti-corrosion electrically isolated clamp-coupling |
| US7617843B1 (en) * | 2008-09-24 | 2009-11-17 | Al-Oriar Abdulaziz K | Split sleeve clamp assembly |
| CN206112390U (en) * | 2016-08-31 | 2017-04-19 | 焦发兆 | Environment -friendly ha fujie |
| CN206369047U (en) * | 2016-12-03 | 2017-08-01 | 许川 | A kind of material filling type Pipe leakage stopper |
| CN207621569U (en) * | 2017-11-27 | 2018-07-17 | 浙江海普管业有限公司 | High sealing water pipe first-aid repairing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110067909B (en) | 2021-04-23 |
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