CN107101068A - Infiltration plugging device and its construction method in a kind of pipeline - Google Patents
Infiltration plugging device and its construction method in a kind of pipeline Download PDFInfo
- Publication number
- CN107101068A CN107101068A CN201710423796.5A CN201710423796A CN107101068A CN 107101068 A CN107101068 A CN 107101068A CN 201710423796 A CN201710423796 A CN 201710423796A CN 107101068 A CN107101068 A CN 107101068A
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- Prior art keywords
- air bag
- pipeline
- pipe
- discharging opening
- charging aperture
- Prior art date
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Classifications
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- 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
- F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
- F16L55/1645—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a sealing material being introduced inside the pipe by means of a tool moving in the pipe
- F16L55/16455—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a sealing material being introduced inside the pipe by means of a tool moving in the pipe a part of the tool defining, together with the inner wall of the pipe, an enclosed space into which sealing material is injected
Abstract
The invention discloses plugging device and its construction method of being seeped water in a kind of pipeline, it includes being provided with air inlet, charging aperture and discharging opening on air bag, the air bag.The air inlet is connected with aerating device；The charging aperture is connected with pressurized tank sizing device；The discharging opening is connected with charging aperture by the pipeline that is in the milk；The discharging opening is arranged on the side wall of air bag.The air bag is provided at both ends with draw-gear.The air bag is made of high-temperature resistant rubber tube material, and air bag wall thickness is inconsistent, and the wall thickness of other positions is greater than positioned at the wall thickness of discharge outlet, and the two ends of the air bag are installed with pad by nut；The air bag after being inflated its two ends outer wall can between pipeline to be repaired gluing, sealing make its middle part formed closed cavity.It can be in the milk using the device in the pipeline of any diameter, so as to solve the problem of infiltration can not be blocked in pipeline.
Description
Technical field
The present invention relates to pipeline construction device field, seep water plugging device and its construction method in particularly a kind of pipeline.
Background technology
In work progress, there is crack unavoidably in concrete, and particularly in construction joint position, minute crack exists all the time,
Occurs infiltration phenomenon at crack, existing infiltration closure mainly there are following methods：
Method one：The precious directly plugging method of leak stopping；It is larger for fracture width, using going out on the market more than the sufficient environment in operating space
The leak stopping treasured sold carries out crack closure, so as to reach the purpose of sealing, but is used for crack is smaller, not easy-operating position more
Method two.
Method two：Pressure grout method；For the smaller operating difficulties region of fracture width, the general side from pressure grouting
Case, may be selected rigid material, such as cement base or flexible material, such as polyurethane obtain colloid substance according to varying environment grouting material.
Method three：Encapsulant perfusion；For unlike material（Steel plate, concrete etc.）Junction crack and seepage point can
Up to region, fluid sealant typically is irrigated in seepage point upstream face, fluid sealant can effectively connect unlike material, crack be eliminated, so as to reach
To sealing purpose.
For method one, using flexible, simple to operate, but using more limiting to, water-stagnating effect is poor；For method two,
Because being irrigated using pressure, crack fills up that depth is larger, and the compactness in crack can meet requirement, water-stagnating effect preferably, but
It is required that seepage point personnel are reachable；For method three, it can effectively solve the problem that unlike material produces crack infiltration because of physical property difference
The problem of, but the region that upstream face can not be reached can not be constructed, construction is more limited to.
At present, for minor diameter long length pipeline（Diameter is at more than ten centimeters, and length reaches several meters）Closure also exist
Certain the problem of, its reason is that the diameter of small diameter pipeline is thinner, and seepage part is complicated and changeable, and some infiltration positions are located at pipe
At several meters or more than ten meters of road end, operating personnel can not smoothly arrive at or contact leakage point during closure, therefore can not adopt
With the precious directly plugging method, and because operating space is limited of leak stopping in method one, the pressure note in method two can not be also used
Slurry processes, encapsulant perfusion equally also in uncomfortable induction method three, accordingly, it would be desirable to design provisions for grouting in a kind of novel pipeline
And construction method.
The content of the invention
The present invention provides infiltration plugging device and its construction method in a kind of pipeline, can be in any diameter using the device
Pipeline in be in the milk, so as to solve the problem of can not blocking of seeping water in pipeline.
In order to solve the above-mentioned technical problem, the present invention proposes following technical scheme：Infiltration plugging device in a kind of pipeline, it
Including air bag, air inlet, charging aperture and discharging opening are provided with the air bag.
The air inlet is connected with aerating device；The charging aperture is connected with pressurized tank sizing device；The discharging opening is with entering
Material mouth is connected by the pipeline that is in the milk；The discharging opening is arranged on the side wall of air bag.
The air bag is provided at both ends with draw-gear.
The air bag is made of high-temperature resistant rubber tube material, and air bag wall thickness is inconsistent, positioned at the wall of discharge outlet
Thickness is greater than the wall thickness of other positions, and the two ends of the air bag are installed with pad by nut；The air bag is in inflation
The outer wall at its two ends can make its middle part form closed cavity by gluing, sealing between pipeline to be repaired afterwards.
The aerating device includes air inlet pipe, and one end of the air inlet pipe is connected with air inlet, the other end and pressure gauge and
Charger is connected.
The pressurized tank sizing device includes slip casing by pressure machine, and the slip casing by pressure machine is connected by Grouting Pipe with charging aperture,
The other end of the charging aperture is connected with grouting pipeline.
The grouting pipeline includes the first steel pipe, and one end of first steel pipe is fixedly linked with charging aperture, and the other end connects
High-temperature resistant rubber pipe is connected to, the other end of the high-temperature resistant rubber pipe is connected with steel bend pipe, the other end of the control bend pipe
It is connected with discharging opening；The slip casting of pressurized tank sizing device is all set with inside first steel pipe, high-temperature resistant rubber pipe and control bend pipe
Pipe.
The draw-gear includes draw ring, and the draw ring is fixedly mounted on the two ends of air bag, is installed with draw ring
Steel wire rope.
It also includes endoscope and image display device.
The endoscope and image display device include endoscope, and the endoscope is shown by signal transmssion line and image
Equipment is connected.
The construction method of infiltration plugging device in pipeline, it comprises the following steps：
Step1：It is deep into and is treated inside blocking pipe using endoscope, and primarily determines that by image display the position of breakthrough
Put；
Step2：The air bag of unaerated is extend into and treated inside blocking pipe, and by pulling the steel wire rope at its two ends, adjusts it
The position inside blocking pipe is being treated, discharging opening is located at the position of breakthrough；
Step3：Inflated by pressure gauge and charger to inside air bag, and then make the two ends outer wall of air bag and treat blocking pipe
Inwall between gluing, sealing, and form closed cavity in the middle；
Step4：Using slip casing by pressure machine by Grouting Pipe to injecting plugging material at breakthrough；
Step5：After plugging material injection and pressurize for a period of time, the pressure of air bag is laid down, air bag is pulled out by steel wire rope, most
The closure of breakthrough is completed eventually.
Plugging material in the Step4 uses polyurethane.
Beneficial effects of the present invention：
1st, plugging device of the invention, can effectively be solved because space is limited, personnel can not operate in the environment of grouting work
Make, because not producing destruction to structure in work progress, greatly save cost and accelerate the construction period, can be applicable
Under to analogue in the construction such as leak stopping, grouting, sealing.
2nd, air bag of the invention can expand after being inflated, and then can treat blocking pipe and blocked, because, filling
Slurry need provide an opposing seal environment, it is necessary to two ends sealing and also there is cavity centre, it requires air bag in different length
Difference is deformed in the range of degree, passes through the adjustment to air bag wall thickness and stopping means is set, form the environment for meeting grouting needs.
3rd, by setting air inlet, charging aperture and discharging opening on air bag, air inlet can be inflated air in air bag, and
Air bag is set to maintain in certain air pressure range, can be timely when air pressure is unsatisfactory for requiring by setting air gauge in air inlet
Tonifying Qi.
4th, by being also provided with pressure gauge in charging aperture one end, inlet amount and charging rate are controlled according to pressure gauge reading, prevented
Only feed pressure is excessive, and grouting material loses the effect of pressure grouting, causes pollution in pipeline from air bag and pipeline intermediate bleeder.
5th, by the way that discharging opening to be arranged on to the centre of air bag, and feed pipe, discharge nozzle are required to use steel in air bag
Pipe, discharge nozzle need to set bend pipe, and bend pipe is needed also exist for using steel bend pipe, and these local materials can be produced without using steel-product
It is raw melt, obstruction pipeline the problem of, connecting tube need to use high-temperature resistant rubber flexible pipe, if using steel pipe, the deformation of length direction with
The deformation in balloon length direction is mismatched, the problem of causing shedding or be pulled off.
6th, the breakthrough situation treated inside blocking pipe can accurately be recognized by image display and endoscope,
And then the convenient position for adjusting discharging opening.
7th, air bag wall thickness is different, and different section deformations are different during inflation, can reach tight closure air bag both sides, in
Between formed cavity effect.
8th, material is leaked using polyurethane as inner pipeline plug, polyurethane is flexible blockage material, meets water meeting rapid condensation, compared with
The good difficulty for playing plugging action, reducing filling process.
9th, threading apparatus is coordinated to make scale using steel wire rope, pipe walking path is complex, it is impossible to accurately measure leak
The specific size of point, can be marked using steel wire rope in advance, and two ends are carried out when steel wire rope is pulled to mark position and are fixed, it is ensured that are gone out
Material mouth is directed at seepage point.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is overall structure diagram of the present invention.
Fig. 2 is air bag of the present invention and part connection figure.
Fig. 3 uses procedure structure schematic diagram for the present invention.
In figure：Image display 1, slip casing by pressure machine 2, Grouting Pipe 3, endoscope 4, steel wire rope 5, draw ring 6, pad 7, spiral shell
Female 8, first steel pipe 9, high-temperature resistant rubber pipe 10, discharging opening 11, control bend pipe 12, air bag 13, air inlet pipe 14, pressure gauge and inflation
Equipment 15, charging aperture 16, air inlet 17, plugging material 18, breakthrough 19, treat blocking pipe 20, concrete 21.
Embodiment
Embodiments of the present invention are described further below in conjunction with the accompanying drawings.
Embodiment 1：
Such as Fig. 1-2, a kind of interior infiltration plugging device of pipeline, it includes being provided with air inlet 17 on air bag 13, the air bag 13, entered
Material mouth 16 and discharging opening 11.
Further, the air inlet 17 is connected with aerating device；The charging aperture 16 is connected with pressurized tank sizing device；Institute
Discharging opening 11 is stated with charging aperture by the pipeline that is in the milk to be connected；The discharging opening 16 is arranged on the side wall of air bag 13.Air inlet can
To inflate air in air bag, and require that air bag is maintained in certain air pressure range, so setting air gauge in air inlet, work as gas
Timely tonifying Qi when pressure is unsatisfactory for requiring.
Further, the air bag 13 is provided at both ends with draw-gear.
Further, the air bag 13 is made of high-temperature resistant rubber tube material, and the wall thickness of air bag 13 is inconsistent, is located at
Wall thickness at discharging opening 11 is greater than the wall thickness of other positions, and the two ends of the air bag 13 are installed with pad by nut 8
7；The air bag 13 after being inflated its two ends outer wall can between pipeline to be repaired gluing, sealing make its middle part formed it is close
Close cavity.
Moreover, the sealing effectiveness in order to ensure air bag 13, balloon ends are fixed using steel plate pad, two ends are solid using steel plate
Surely can effectively controlling air bag, deflection is less along its length during inflating pressure, it is to avoid break in interconnecting tube road
Split.
This is that the two ends of air bag 13 are avoided that because high temperature causes pipeline to melt using steel pipe, the problem of causing line clogging, in
Between high-temperature resistant rubber pipe 10 can be with a small amount of extension of air bag expansion, it is to avoid connecting tube fracture caused by air bag is deformed or even
Adapter departs from feed pipe, causes grouting material leakage in air bag inner question.
Further, the aerating device includes air inlet pipe 14, and one end of the air inlet pipe 14 is connected with air inlet 17, separately
One end is connected with pressure gauge and charger 15.High pressure gas can be filled with to inside air bag 13 by pressure gauge and charger 15
Body, and then closed cavity is formed it into, facilitate follow-up grouting.
Further, the pressurized tank sizing device include slip casing by pressure machine 2, the slip casing by pressure machine 2 by Grouting Pipe 3 with
Charging aperture 16 is connected, and the other end of the charging aperture 16 is connected with grouting pipeline.
Further, the grouting pipeline includes the first steel pipe 9, and one end and the charging aperture 16 of first steel pipe 9 are fixed
It is connected, the other end is connected with high-temperature resistant rubber pipe 10, and the other end of the high-temperature resistant rubber pipe 10 is connected with steel bend pipe 12, institute
The other end for stating control bend pipe 12 is connected with discharging opening 11；In first steel pipe 9, high-temperature resistant rubber pipe 10 and control bend pipe 12
Portion is all set with the Grouting Pipe 3 of pressurized tank sizing device.
Moreover, feed pipe, discharge nozzle are required to use steel pipe in air bag, discharge nozzle need to set elbow, and elbow is needed also exist for
Using steel bend pipe, the problem of these local materials can produce thawing, obstruction pipeline without using steel-product, connecting tube need to make
With high-temperature resistant rubber flexible pipe 10, if using steel pipe, the deformation of length direction is mismatched with the deformation in balloon length direction, causes pipe
The problem of road comes off or is pulled off.
Further, the draw-gear includes draw ring 6, and the draw ring 6 is fixedly mounted on the two ends of air bag 13, in draw ring
Steel wire rope 5 is installed with 6.Threading apparatus is coordinated to make scale, because pipe walking path is complex, nothing using steel wire rope
Method accurately measures the specific size of leakage point, can be marked, be carried out when steel wire rope is pulled to mark position using steel wire rope in advance
Two ends are fixed, it is ensured that discharging opening is directed at seepage point.
Further, it also includes endoscope and image display device.
Further, the endoscope and image display device include endoscope 4, and the endoscope 4 is transmitted by signal
Line is connected with image display 1.Personnel cannot be introduced into, and more can clearly observe inner case using endoscope, make
Correct decisions.
Further, described one end of charging aperture 16 is also provided with pressure gauge, and inlet amount and charging are controlled according to pressure gauge reading
Speed, prevents feed pressure excessive, and grouting material loses the effect of pressure grouting, causes pipeline from air bag and pipeline intermediate bleeder
Interior pollution.
Embodiment 2：
Such as Fig. 3, the construction method of the interior infiltration plugging device of pipeline, it comprises the following steps：
Step1：It is deep into and is treated inside blocking pipe 20 using endoscope 4, and breakthrough is primarily determined that by image display 1
19 position；
Step2：The air bag 13 of unaerated is extend into and treated inside blocking pipe 20, and by pulling the steel wire rope 5 at its two ends, is adjusted
Save it and treating the position inside blocking pipe 20, discharging opening 11 is located at the position of breakthrough 19；
Step3：By pressure gauge and charger 15 to the inner inflatable of air bag 13, and then the two ends outer wall of air bag 13 is set to be sealed with waiting
Gluing, sealing between the inwall of blocked pipeline 20, and closed cavity is formed in the middle；
Step4：Using slip casing by pressure machine 2 by Grouting Pipe 3 to injecting plugging material at breakthrough 19；
Step5：After plugging material injection and pressurize for a period of time, the pressure of air bag 13 is laid down, air bag 13 is drawn by steel wire rope 5
Go out, be finally completed the closure of breakthrough 19.
Further, the plugging material in the Step4 uses polyurethane.
Because polyurethane is flexible blockage material, meets water meeting rapid condensation, preferably plays plugging action, reduce perfusion
The difficulty of process.
The present invention operation principle be：
According to pipe diameter is narrow and small and the characteristics of larger length, pipeline blocked using air bag, because grouting needs offer one
There is cavity the sealing of the environment of individual opposing seal, i.e. two ends, centre, it requires that air bag deforms difference in the range of different length,
By the adjustment to air bag wall thickness and setting stopping means, it can be duroplasts set, form the environment for meeting grouting needs, be
, need to be by endoscopic observation by discharging opening align with tube joint rises.
Air bag is needed to set air inlet, charging aperture and discharging opening, and air inlet can be inflated air in air bag, and requires gas
Capsule is maintained in certain air pressure range, so setting air gauge, the timely tonifying Qi when air pressure is unsatisfactory for requiring in air inlet.
Perhaps, charging aperture one end sets pressure gauge, and inlet amount and charging rate are controlled according to pressure gauge reading, prevents charging
Pressure is excessive, and grouting material loses the effect of pressure grouting, causes pollution in pipeline from air bag and pipeline intermediate bleeder.
Discharging opening should be in the middle of air bag, and feed pipe, discharge nozzle are required to use steel pipe in air bag, and discharge nozzle need to set curved
Head, elbow needs also exist for using steel elbow, and these local materials can produce thawing, obstruction pipeline without using steel-product
Problem, connecting tube need to use high-temperature resistant rubber flexible pipe, if using steel pipe, the deformation of length direction and the deformation in balloon length direction
Mismatch, the problem of causing shedding or be pulled off.
By above-mentioned description, those skilled in the art completely can be in the model without departing from this invention technological thought
In enclosing, various changes and amendments are carried out all within protection scope of the present invention.The unaccomplished matter of the present invention, belongs to ability
The common knowledge of field technique personnel.
Claims (10)
1. infiltration plugging device in a kind of pipeline, it is characterised in that：It includes air bag（13）, the air bag（13）On be provided with into
Gas port（17）, charging aperture（16）And discharging opening（11）；
The air inlet（17）It is connected with aerating device；The charging aperture（16）It is connected with pressurized tank sizing device；The discharging opening
（11）It is connected with charging aperture by the pipeline that is in the milk；The discharging opening（16）It is arranged on air bag（13）Side wall on；
The air bag（13）Be provided at both ends with draw-gear.
2. infiltration plugging device in a kind of pipeline according to claim 1, it is characterised in that：The air bag（13）Using resistance to
Super heated rubber tube material is made, and air bag（13）Wall thickness is inconsistent, positioned at discharging opening（11）The wall thickness at place is greater than other positions
The wall thickness put, the air bag（13）Two ends pass through nut（8）It is installed with pad（7）；The air bag（13）In inflation
The outer wall at its two ends can make its middle part form closed cavity by gluing, sealing between pipeline to be repaired afterwards.
3. infiltration plugging device in a kind of pipeline according to claim 1, it is characterised in that：The aerating device include into
Tracheae（14）, the air inlet pipe（14）One end and air inlet（17）It is connected, the other end and pressure gauge and charger（15）Phase
Even.
4. infiltration plugging device in a kind of pipeline according to claim 1, it is characterised in that：The pressurized tank sizing device bag
Include slip casing by pressure machine（2）, the slip casing by pressure machine（2）Pass through Grouting Pipe（3）With charging aperture（16）It is connected, the charging aperture（16）
The other end with grouting pipeline be connected.
5. seep water plugging device in a kind of pipeline according to claim 1 or 4, it is characterised in that：The grouting pipeline bag
Include the first steel pipe（9）, first steel pipe（9）One end and charging aperture（16）It is fixedly linked, the other end is connected with high temperature resistant rubber
Sebific duct（10）, the high-temperature resistant rubber pipe（10）The other end be connected with steel bend pipe（12）, the control bend pipe（12）It is another
One end and discharging opening（11）It is connected；First steel pipe（9）, high-temperature resistant rubber pipe（10）With control bend pipe（12）Inside is all set with
The Grouting Pipe of pressurized tank sizing device（3）.
6. infiltration plugging device in a kind of pipeline according to claim 1, it is characterised in that：The draw-gear includes drawing
Ring（6）, the draw ring（6）It is fixedly mounted on air bag（13）Two ends, in draw ring（6）On be installed with steel wire rope（5）.
7. infiltration plugging device in a kind of pipeline according to claim 1, it is characterised in that：It also includes endoscope and figure
As display device.
8. infiltration plugging device in a kind of pipeline according to claim 7, it is characterised in that：The endoscope and image show
Showing device includes endoscope（4）, the endoscope（4）Pass through signal transmssion line and image display（1）It is connected.
9. using the construction method of infiltration plugging device in the pipeline described in claim 1-8 any one, it is characterised in that it
Comprise the following steps：
Step1：Use endoscope（4）It is deep into and treats blocking pipe（20）Inside, and pass through image display（1）Primarily determine that
Breakthrough（19）Position；
Step2：By the air bag of unaerated（13）It extend into and treats blocking pipe（20）Inside, and by pulling the steel wire rope at its two ends
（5）, adjust it and treating blocking pipe（20）Internal position, makes discharging opening（11）Positioned at breakthrough（19）Position；
Step3：Pass through pressure gauge and charger（15）To air bag（13）Inner inflatable, and then make air bag（13）Two ends outer wall
With treating blocking pipe（20）Inwall between gluing, sealing, and form closed cavity in the middle；
Step4：Using slip casing by pressure machine（2）Pass through Grouting Pipe（3）To breakthrough（19）Place's injection plugging material；
Step5：After plugging material injection and pressurize for a period of time, air bag is laid down（13）Pressure, pass through steel wire rope（5）By air bag
（13）Pull out, be finally completed breakthrough（19）Closure.
10. the construction method of infiltration plugging device in a kind of pipeline according to claim 9, it is characterised in that：It is described
Plugging material in Step4 uses polyurethane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710423796.5A CN107101068B (en) | 2017-06-07 | 2017-06-07 | Water seepage plugging device in pipeline and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710423796.5A CN107101068B (en) | 2017-06-07 | 2017-06-07 | Water seepage plugging device in pipeline and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107101068A true CN107101068A (en) | 2017-08-29 |
| CN107101068B CN107101068B (en) | 2022-11-18 |
Family
ID=59660858
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|---|---|---|---|
| CN201710423796.5A Active CN107101068B (en) | 2017-06-07 | 2017-06-07 | Water seepage plugging device in pipeline and construction method thereof |
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| CN109630803A (en) * | 2019-01-31 | 2019-04-16 | 湖南大麓科技有限公司 | A kind of pipeline rehabilitation device, system and method |
| CN110630849A (en) * | 2019-08-22 | 2019-12-31 | 杭州帆源强生态科技有限公司 | Device and method for quickly repairing water damage of pipeline |
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| CN109630803B (en) * | 2019-01-31 | 2024-01-26 | 湖南大麓科技有限公司 | Pipeline repairing device, system and method |
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| CN110630849B (en) * | 2019-08-22 | 2024-04-16 | 杭州芦悦生态科技有限公司 | Quick repair device and repair method for pipeline water damage |
| CN113945323A (en) * | 2020-07-16 | 2022-01-18 | 苏州协同创新智能制造装备有限公司 | Air tightness detection method and detection system of ball valve equipment |
| CN112196057A (en) * | 2020-09-18 | 2021-01-08 | 长江生态环保集团有限公司 | In-pipe grouting device and grouting method |
| CN112377717A (en) * | 2020-09-18 | 2021-02-19 | 中交第二航务工程勘察设计院有限公司 | Grouting reinforcement and leakage repair construction method for cracking and damage of underground concrete pipeline |
| CN112196057B (en) * | 2020-09-18 | 2021-10-12 | 长江生态环保集团有限公司 | In-pipe grouting device and grouting method |
| CN112377717B (en) * | 2020-09-18 | 2022-03-18 | 中交第二航务工程勘察设计院有限公司 | Grouting reinforcement and leakage repair construction method for cracking and damage of underground concrete pipeline |
| CN113819335A (en) * | 2021-08-26 | 2021-12-21 | 中山大学 | Pipeline repairing device and pipeline repairing method |
| CN114352839A (en) * | 2022-01-12 | 2022-04-15 | 山东钢铁集团日照有限公司 | Blast furnace cooling wall connecting pipe leakage stopping device and method |
| CN115076507A (en) * | 2022-06-10 | 2022-09-20 | 安徽碧盾环境工程技术有限公司 | Non-excavation prosthetic devices of formula pipe network of being in milk |
| CN115076507B (en) * | 2022-06-10 | 2024-02-20 | 安徽碧之润生态环境科技有限公司 | Grouting pipe network non-excavation repairing device |
| CN115030230A (en) * | 2022-08-10 | 2022-09-09 | 衡橡科技股份有限公司 | Pile-first type slurry filling sealing packer and sealing method |
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Effective date of registration: 20230913 Address after: 443101 No.1, Wangjiang Road, Yiling District, Yichang City, Hubei Province Patentee after: CHINA NUCLEAR INDUSTRY 22ND CONSTRUCTION Co.,Ltd. Patentee after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: 443101 No.1, Wangjiang Road, Yiling District, Yichang City, Hubei Province Patentee before: CHINA NUCLEAR INDUSTRY 22ND CONSTRUCTION Co.,Ltd. |