CN106523847A - Low-pressure pipeline pressurized leakage removing method - Google Patents
Low-pressure pipeline pressurized leakage removing method Download PDFInfo
- Publication number
- CN106523847A CN106523847A CN201610933148.XA CN201610933148A CN106523847A CN 106523847 A CN106523847 A CN 106523847A CN 201610933148 A CN201610933148 A CN 201610933148A CN 106523847 A CN106523847 A CN 106523847A
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- Prior art keywords
- leakage
- leak stopping
- pipeline
- pressure
- winding
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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
-
- 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
- F16L55/1686—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by winding a tape
-
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Material Composition (AREA)
- Pipe Accessories (AREA)
Abstract
The invention aims at providing a low-pressure pipeline pressurized leakage removing method. According to the method, pressurized leakage removing can be carried out on a technology pipeline with micro leakage, much inconvenience, caused by water supply and gas supply stop during overhauling, to technology pipeline conveying is avoided, and under most conditions, water supply and gas supply stop for overhauling is not allowed in a pipeline system. By the adoption of the method, the micro leakage appearing in the low-pressure technology pipeline can be subject to pressurized leakage removing under the condition without water supply and gas supply stop; the method is easy and convenient to operate and good in leakage removing effect; according to the method, a quick-setting type leaking stoppage agent is used firstly for leakage stoppage on the leakage position of the low-pressure technology pressurized pipeline, after curing, the pipeline leakage position is subject to leakage stoppage through a winding method, the technology pipeline with the micro leakage can be subject to pressurized leakage removing through the method, and much inconvenience, caused by water supply and gas supply stop during overhauling, to technology pipeline conveying is avoided.
Description
【Technical field】
The present invention relates to the general pipe pressurized leakage eliminating field of low pressure process, and in particular to a kind of low pressure pipeline leakage eliminating side with pressure
Method.
【Background technology】
In the daily production process of factory, often there is pipeline with pressure and minor leakage occurs in Jing, and general processing method is
Defective pipe is carried out cutting off the water, is stopped the supple of gas or steam and operation and then is overhauled, the conventional method such as welded by using electric welding, gas welding, plastics and enter
Row repair welding leakage eliminating, or leakage eliminating is carried out using conventional leakage eliminating method with pressure, conventional leakage eliminating method with pressure mainly have adjustment leakage eliminating method,
Stifled Sealing Method of mechanical leak stopping method, consent leak stopping method, glue and mend blocking method, glue etc..And general leakage eliminating method with pressure is limited to past by various
Past effect is undesirable or enforcement difficulty is larger.
Adjustment leakage eliminating method is using adjustment operation, adjusts relative position between sealing member pretightning force or adjustment part, does not need envelope
A kind of stifled method stopped a leak, is only applicable to adjust one kind side of relative position between sealing member pretightning force or adjustment part
Method.
Mechanical leak stopping method includes：1st, supporting methods：Outside equipment and container, support is set, it is stifled by instrument and sealing gasket
The firmly method of leak, referred to as supporting methods, this method are applied to the leak stopping of larger equipment and container, are because cannot be on body
A kind of method fixed and adopt；
2nd, top pressure method：The leak that a screw rod is directly or indirectly blocked on equipment and pipeline is fixed on equipment and pipeline
Method, referred to as top pressure method, this method are applied to the leak stopping of the leak sources such as the sand holes on medium/low-voltage equipment and pipeline, duck eye；
3rd, clip method：With clip (clamp) by the sealing gasket stuck method for reaching in leak and controlling leakage, referred to as clip method,
This method is applied to pipeline and body encloses the leak stopping of little equipment；
4th, gland method：Sealing gasket and gland are pressed on into hole inner face with bolt or outside reach a kind of method for controlling leakage,
Referred to as gland method, this method are applied to low pressure, are easy to operate the leak stopping of folding equipment and pipeline；
5th, bolus dressing：Leak is encased with metal enclosed chamber, interior filling airtight and watertight padding or be lined with sealing gasket in junction
Method, referred to as bolus dressing, this method are applied to the leak stopping at pipeline, flange, screw thread；
6th, upper cover method：The method that leakage is covered with metal cap and leak stopping is reached, referred to as upper cover method, this method are applied to
The leak stopping of leakage position at filler and on body；
7th, swelling method：Leak stoppage tool enters in pipeline with fluid, swells automatically the method for blocking leakage at internal hemorrhage due to trauma position, referred to as
Swelling method, this method are more complicated, and are furnished with automatic controls, for underground piping or some be difficult to the field of leak stopping from the outside
The methods such as conjunction.
Consent leak stopping method is to be directly anchored to leak in hole, so as to reach leak-stopping using crowded flat, blocking straightforward procedure
A kind of method, this method be actually a kind of simple mechanical leak stopping method, it is particularly well-suited to the defects such as sand holes and aperture
Leak stopping on, consent leak stopping method includes：1st, caulking method：Leakage point surrounding metal body is extruded with punching pin and the side of leakage is blocked
Method, referred to as caulking method, this method are applied to steel alloy, carbon steel and carbon steel weld seam, are not suitable for cast iron, steel alloy weld seam
The thin body of wall Deng hard brittle material and seriously corroded；
2nd, fill in wedge method：Leakage is knocked in the big metal of toughness, wood, cone wedge made by plastic or other material or flat wedge
The method of leak-stopping in hole, referred to as fills in wedge method, and this method is applied to the leak stopping of the not high leakage position of pressure；
3rd, plug screw method：The drilling and tapping in the hole of leakage, then tightens plug screw and sealing gasket controls method leakage, referred to as spiral shell
Inserting method, the leak stopping at the larger position of hole suitable for this volume thickness of this method.
Glue and mend blocking method is directly or indirectly to block to let out on equipment, pipeline, valve, container and building using adhesive
The method of leak, this method is applied to should not get angry and additive method is difficult to the position of leak stopping, the temperature of adhesive leak stopping
Relevant with the factor such as pressure and its performance, filler and fixed form, general heat resistance is poor, and glue and mend blocking method includes：
1st, glue stifled method：Leak is directly filled up with adhesive or the method for carrying out adhesive blocking is coated at screw thread, referred to as
Bonding method, this method be applied to that pressure is not high or vacuum equipment on leak stopping；
2nd, mounting method：Overlayed with the film of adhesive applicating, band and book soft board and method leakage is controlled in leakage position, referred to as glue
Patch method, this method are applied to the leak stopping at the very low position of vacuum equipment and pressure；
3rd, glue platen press：Part, plate, nail class, drift ping and adhesive are blocked leak with methods such as top, pressures, or allows glue
The blocking method of screwing tool is dismantled after stick solidification, this method is applied to various viscous stifled positions, and its range of application is subject to temperature
Degree and the restriction of hardening time；
4th, winding method：The method for being taken and blocking leakage in leakage position and winding with adhesive applicating, referred to as winding method,
The method can be strengthened with steel band, iron wire, it be applied to the leak stopping that pipeline and body are enclosed on little equipment, particularly crumbly texture,
The position of seriously corroded.
The stifled Sealing Method of glue is to get lodged in the method that leak forms one layer of new sealant using fluid sealant (broad sense), this
Method effect is limited, widely applicable, can be used for the inside and outside leak stopping of equipment, container, pipeline, valve and building, it is adaptable to which high pressure is high
Warm, inflammable and explosive position, the stifled Sealing Method of glue include：
1st, osmosis：It is mixed in medium or coated surfaces with the sealing glue of dilution, borrows pressure medium or impressed pressure
Penetrated into leakage position, the method for reaching Drain Resistance effect, referred to as osmosis, this method be applied to sand holes, crumbly texture,
Interior place's leak stopping at the positions such as folder quarrel, crack；
2nd, interior coating：Sealing mechanism being put into into in-pipe, automatically sealant being projected to leak, this is referred to as interior painting
Method, this method are complicated, it is adaptable to which underground, submarine pipeline etc. are difficult to the position of leak stopping from the outside, because being interior painting, effect
Preferably, fixture is not needed；
3rd, outer coating：The sealing with gap, screw thread are coated in outside anaerobic sealer, liquid sealant, at hole and the side of leak-stopping
Method, referred to as outer coating, it is also possible to which the thing such as nut, glass fabric is fixed, it is adaptable in the not high occasion of pressure or vacuum equipment
Leak stopping；
4th, injection method：Possess annular seal space in itself in the prefabricated annular seal space of leak or leak, seal sizing material strength is injected
Sealing intracavity, and the method for being solidified into rapidly new filler and blocking leakage position, referred to as injection method, the method is suitable for being difficult to
Leak on the position such as the high pressure-temperature of leak stopping, inflammable and explosive, such as filler, flange, apparatus body and building.
Pipe material is the various materials such as metal, PVC, and pipeline medium is liquid or gas, such as water, steam etc.,
Pipe-line system is not allow maintenance of cutting off the water, stop the supple of gas or steam in most cases, when general low pressure process pipeline with pressure occur it is micro-
During Small leak, and now pipe-line system should not be cut off the water again, be stopped the supple of gas or steam and overhauled, now also should not be using electric welding, gas welding, plastics weldering
Repair welding leakage eliminating is carried out etc. conventional method, and common leakage eliminating method with pressure has that effect is undesirable or enforcement difficulty is larger.
【The content of the invention】
To solve problems of the prior art, it is an object of the invention to provide a kind of low pressure pipeline leakage eliminating side with pressure
Method, can carry out leakage eliminating with pressure to the process pipe for minor leakage occur by the method, and the method is easy to operate, leakage eliminating effect
It is good, it is to avoid because maintenance is cut off the water, to stop the supple of gas or steam and bring inconvenience to process pipe conveying.
The purpose of the present invention is achieved through the following technical solutions：
A kind of low pressure pipeline leakage eliminating method with pressure, comprises the steps：First leak stopping will be carried out at pipeline leakage with viscous stifled method,
After the completion for the treatment of leak stopping, then leak stopping is carried out by winding method at pipeline leakage, when leak stopping is carried out by winding method, winding band is glass
Glass fiber surface felt, bonding agent are resin mixture liquor, and resin mixture liquor is epoxy resin E-44 and firming agent divinyl triammonium
Mixture, in every 100g epoxy resin E44, the addition of diethylenetriamine is：8～12g.
Before leak stopping is carried out at by viscous stifled method by pipeline leakage, first the outer surface at pipe leakage is carried out at hacking
Reason, during hacking process, carries out hacking by 60～100 mesh sand paper, until pipe surface all to be exposed matrix.
During the hacking, 5～10cm is each extended over along the axial direction of pipeline in leak both sides.
When leak stopping is carried out at by viscous stifled method by pipeline leakage, leak stopping is carried out to leak using rapid-hardening leak stopping spirit.
When the viscous stifled method is to carrying out leak stopping at pipeline leakage, until after non-leakage 10～30 minutes, then it is wound method
Carry out leak stopping.
When the winding method carries out leak stopping, the first uniform coated with resins mixed liquor at the pipe surface of viscous stifled method leak stopping is applied
Width of the width for covering not less than fiberglass surfacing mat, then fiberglass surfacing mat is wrapped on pipeline, in winding process
In, the uniform coated with resins mixed liquor on the surface of fiberglass surfacing mat.
During winding fiberglass surfacing mat, resin mixture liquor to be impregnated with the surface of fiberglass surfacing mat, side by side
Bubble removing.
The fabric width of the fiberglass surfacing mat is 10～20, and grammes per square metre is 25～50g/, fiberglass surfacing mat
Total winding thickness is 0.5～1.
After the completion of winding method carries out leak stopping, then clip is set on fiberglass surfacing mat.
When winding method carries out leak stopping, until non-leakage 0.5～1h, then clip is set on fiberglass surfacing mat.
The present invention has the advantages that compared with prior art：
The low pressure pipeline leakage eliminating method with pressure of the present invention first passes through viscous stifled method and leak stopping, energy during leak stopping will be carried out at pipeline leakage
Enough so that pipeline is without cutting off the water or stopping the supple of gas or steam, after the completion for the treatment of leak stopping, then leak stopping is carried out by winding method at pipeline leakage, by twining
Winding leak stopping can be strengthened to gluing the leakproof intensity at stifled method leak stopping, and in winding method leak stopping, winding band is glass
Fiber surface felt, its intensity are high, flexible, can fit well and be wrapped at pipe leakage, it is ensured that leak stopping sealing and
Intensity, bonding agent are resin mixture liquor, and resin mixture liquor is the mixture of epoxy resin E-44 and firming agent divinyl triammonium, often
In 100g epoxy resin E44, the addition of diethylenetriamine is：8～12g, the adhesive strength of the bonding agent are high, and the retention time is long,
At pipe leakage and adhesive strength is ensure that, the method is easy to operate, and leakage eliminating effect is good.
Further, before viscous stifled method is carried out, hacking process, hacking process are first carried out to the outer surface at pipe leakage
When, hacking is carried out by 60～100 mesh sand paper, until pipe surface all to be exposed matrix, it is ensured that the leak stopping effect of viscous stifled method
Really, prevent because of impurity and pipe surface is unclean causes after bonding easily leakage, it is ensured that leak stopping is carried out by winding method
When, fiberglass surfacing mat is bonding with the outer surface at pipe leakage firm by bonding agent.
Further, during hacking, 5～10cm is each extended over along the axial direction of pipeline in leak both sides, to ensure
Fiberglass surfacing mat has enough bond areas with pipe surface, it is ensured that adhesive strength and sealing.
Further, total winding thickness of fiberglass surfacing mat is 0.5～1 so that fiberglass surfacing mat it is viscous
Junctor has enough intensity, prevents from washing out fiberglass surfacing mat because internal pipe pressure is excessive, causes leakage.
Further, by clip is arranged on fiberglass surfacing mat, enable to the leak stopping of fiberglass surfacing mat
Structure is strengthened, and strengthens plugging effect and intensity.
【Description of the drawings】
Fig. 1 is the schematic flow sheet of the low pressure pipeline leakage eliminating method with pressure of the present invention；
There is the structural representation of leakage for pipeline in Fig. 2 (a)；
Fig. 2 (b) is the structural representation by the clever leak stopping at pipe leakage of leak stopping；
Fig. 2 (c) is the structural representation that the surface after leak stopping spirit leak stopping carries out leak stopping reinforcing by fiberglass surfacing mat
Figure.
【Specific embodiment】
Below in conjunction with the accompanying drawings the present invention is described in further detail：
As shown in Fig. 1 to Fig. 2 (c), it is a kind of schematic flow sheet of low pressure pipeline leakage eliminating method with pressure of the present invention, when low
Pressure technique pipeline with pressure occurs revealing and do not allow to cut off the water, stop the supple of gas or steam maintenance when, first will extend 5 around outer surface at pipeline leakage～
The scope of 10cm carries out grinding process with 60～100 mesh sand paper etc. so that pipe surface all exposes matrix, is easy to bonding, so
Require to prepare and leak stopping operation according to its description using rapid-hardening leak stopping spirit afterwards, by leak stopping spirit mix into wet salt shape, pinch into than
The more bigger hammer shape agglomerate of hole diameter, agglomerate is filled in rapidly in the hole of the water that bursts out, and real with hammering wooden stick extruding, agglomerate exists
The solidification of microdilatancy immediately in hole, and form firm entirety with matrix reaction,
Continue with if there is seepage at the place of leakage until non-leakage, it is non-leakage after after 10～30 minutes, to epoxy resin
Based on the resin mixture liquor that E-44 is stirred with firming agent divinyl triammonium rapidly, the leak stopping spirit table first handled well in leakage
Face is brushed, and epoxy resin E-44 is divinyl three in every 100g epoxy resin E44 with the proportioning of firming agent divinyl triammonium
The addition of amine is：8～12g, with fabric width as 10～20, it is strengthening material that grammes per square metre is the fiberglass surfacing mat of 25～50g/
Material, by the brushing of resin mixed liquor in its surface, subsequently lays fiberglass surfacing mat thereon, and note being impregnated with its surface,
Exclude bubble, the above-mentioned laying operation of repetition, until reaching desirable strength；The thickness of fiberglass is 0.5～1, the thickness of winding
Depending on according to the pressure in pipeline, pressure is higher, and the thickness of fiberglass increases, or at leakage, has seepage to continue with until not
0.5～1 hour after seepage, then using clip method (with clip (clamp) by the sealing gasket stuck side for reaching in leak and controlling leakage
Method) etc. method strengthened.
Claims (10)
1. a kind of low pressure pipeline leakage eliminating method with pressure, it is characterised in that comprise the steps：First with viscous stifled method by pipeline leakage
Leak stopping is carried out, after the completion for the treatment of leak stopping, then leak stopping is carried out by winding method at pipeline leakage, when carrying out leak stopping by winding method,
Winding band is fiberglass surfacing mat, and bonding agent is resin mixture liquor, and resin mixture liquor is epoxy resin E-44 and firming agent two
The mixture of three ammonia of ethylene, in every 100g epoxy resin E44, the addition of diethylenetriamine is：8～12g.
2. a kind of low pressure pipeline according to claim 1 leakage eliminating method with pressure, it is characterised in that will be managed by viscous stifled method
Before leak stopping is carried out at road leakage, hacking process is first carried out to the outer surface at pipe leakage, during hacking process, by 60～100
Mesh sand paper carries out hacking, until pipe surface all to be exposed matrix.
3. a kind of low pressure pipeline according to claim 2 leakage eliminating method with pressure, it is characterised in that during the hacking,
5～10cm is each extended over along the axial direction of pipeline in leak both sides.
4. a kind of low pressure pipeline according to claim 1 leakage eliminating method with pressure, it is characterised in that will be managed by viscous stifled method
When leak stopping is carried out at road leakage, leak stopping is carried out to leak using rapid-hardening leak stopping spirit.
5. a kind of low pressure pipeline according to claim 1 leakage eliminating method with pressure, it is characterised in that the viscous stifled method is to pipeline
When leak stopping is carried out at leakage, until after non-leakage 10～30 minutes, then be wound method and carry out leak stopping.
6. a kind of low pressure pipeline according to claim 1 leakage eliminating method with pressure, it is characterised in that the winding method is blocked up
During leakage, the first uniform coated with resins mixed liquor at the pipe surface of viscous stifled method leak stopping, the width of coating are not less than glass fibers dimension table
The width of face felt, then fiberglass surfacing mat is wrapped on pipeline, in winding process, on the surface of fiberglass surfacing mat
Upper uniform coated with resins mixed liquor.
7. a kind of low pressure pipeline according to claim 6 leakage eliminating method with pressure, it is characterised in that in winding glass fibers dimension table
During the felt of face, resin mixture liquor to be impregnated with the surface of fiberglass surfacing mat, side by side bubble removing.
8. a kind of low pressure pipeline according to claim 1 leakage eliminating method with pressure, it is characterised in that the fiberglass surfacing
The fabric width of felt is 10～20, and grammes per square metre is 25～50g/, and total winding thickness of fiberglass surfacing mat is 0.5～1.
9. a kind of low pressure pipeline according to claim 1 leakage eliminating method with pressure, it is characterised in that carry out leak stopping in winding method
After the completion of, then clip is set on fiberglass surfacing mat.
10. a kind of low pressure pipeline according to claim 9 leakage eliminating method with pressure, it is characterised in that blocked up in winding method
During leakage, until after non-leakage 0.5～1h, then clip is set on fiberglass surfacing mat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610933148.XA CN106523847A (en) | 2016-10-31 | 2016-10-31 | Low-pressure pipeline pressurized leakage removing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610933148.XA CN106523847A (en) | 2016-10-31 | 2016-10-31 | Low-pressure pipeline pressurized leakage removing method |
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| CN106523847A true CN106523847A (en) | 2017-03-22 |
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| CN201610933148.XA Pending CN106523847A (en) | 2016-10-31 | 2016-10-31 | Low-pressure pipeline pressurized leakage removing method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106958715A (en) * | 2017-03-30 | 2017-07-18 | 西安秦华天然气有限公司 | A kind of natural gas line on-line production fast blockage equipment |
| CN110864185A (en) * | 2019-12-13 | 2020-03-06 | 东营市普捷石油科技开发有限公司 | Leakage-stopping device for infusion pipeline |
| CN112013200A (en) * | 2020-08-31 | 2020-12-01 | 田文中 | Gas pipe leakage stopping method and preparation method of slime used by same |
| CN113015871A (en) * | 2018-07-09 | 2021-06-22 | 巴西石油公司 | Apparatus and method for repairing hoses of an umbilical |
| CN114263804A (en) * | 2022-01-04 | 2022-04-01 | 河南省禹志建设工程有限公司 | On-line leak stopping method with water and pressure |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106958715A (en) * | 2017-03-30 | 2017-07-18 | 西安秦华天然气有限公司 | A kind of natural gas line on-line production fast blockage equipment |
| CN113015871A (en) * | 2018-07-09 | 2021-06-22 | 巴西石油公司 | Apparatus and method for repairing hoses of an umbilical |
| CN110864185A (en) * | 2019-12-13 | 2020-03-06 | 东营市普捷石油科技开发有限公司 | Leakage-stopping device for infusion pipeline |
| CN112013200A (en) * | 2020-08-31 | 2020-12-01 | 田文中 | Gas pipe leakage stopping method and preparation method of slime used by same |
| CN114263804A (en) * | 2022-01-04 | 2022-04-01 | 河南省禹志建设工程有限公司 | On-line leak stopping method with water and pressure |
| CN114263804B (en) * | 2022-01-04 | 2023-05-23 | 河南省禹志建设工程有限公司 | On-line plugging construction method with water pressure |
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