CN109424817A - Method for blocking the pipe fitting of pipeline and blocking pipeline - Google Patents
Method for blocking the pipe fitting of pipeline and blocking pipeline Download PDFInfo
- Publication number
- CN109424817A CN109424817A CN201710768277.2A CN201710768277A CN109424817A CN 109424817 A CN109424817 A CN 109424817A CN 201710768277 A CN201710768277 A CN 201710768277A CN 109424817 A CN109424817 A CN 109424817A
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- China
- Prior art keywords
- pipeline
- main body
- tube body
- blocked
- opposite opened
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000007789 sealing Methods 0.000 claims description 41
- 238000010079 rubber tapping Methods 0.000 claims description 22
- 238000003466 welding Methods 0.000 claims description 15
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 claims description 3
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 2
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- 239000000463 material Substances 0.000 description 11
- 238000012423 maintenance Methods 0.000 description 10
- 230000009466 transformation Effects 0.000 description 8
- 239000007789 gas Substances 0.000 description 5
- 238000005242 forging Methods 0.000 description 4
- 230000008439 repair process Effects 0.000 description 3
- 239000000565 sealant Substances 0.000 description 3
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- 241000208340 Araliaceae Species 0.000 description 1
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- 101000577210 Homo sapiens Sodium-dependent phosphate transport protein 2A Proteins 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
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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
- F16L55/10—Means for stopping flow from or in pipes or hoses
- F16L55/105—Closing devices introduced radially into the pipe or hose
-
- 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
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/04—Tapping pipe walls, i.e. making connections through the walls of pipes while they are carrying fluids; Fittings therefor
-
- 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
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/08—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe
- F16L41/12—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe using attaching means embracing 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
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/08—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe
- F16L41/16—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe the branch pipe comprising fluid cut-off means
-
- 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
Abstract
The method of the pipe fitting and blocking pipeline that the invention discloses a kind of for blocking pipeline, the outer diameter of pipeline is 50mm hereinafter, pipe fitting includes: opposite opened main body, opposite opened disrance sleeve and the first plugging part；Opposite opened disrance sleeve includes the first tube body and the second tube body, forms the cavity that can accommodate pipeline to be blocked after the first tube body and the second tube body pairing；Opposite opened main body includes the first main body and the second main body；First main body has the first groove and the closed first through hole of one end open, the other end of both ends open, and one end of the opening of first through hole is connected to the first groove；Second main body has the second groove of both ends open and the second through-hole of both ends open, and one end of the second through-hole is connected to the second groove, and the first plugging part is used to block the other end of the second through-hole；The shape of the inner surface for the cavity that first groove and the second groove are combined to form is matched with the shape of the outer surface of opposite opened disrance sleeve.Flow of media in pipeline can be thoroughly blocked by the pipe fitting.
Description
Technical field
It is the present invention relates to oil-gas pipeline maintenance, repairing and renovation technique field, in particular to a kind of for blocking pipeline
Pipe fitting and the method for blocking pipeline.
Background technique
Outer diameter is widely present in the field of city gas pipeline and long-distance oil & gas pipeline in 50mm small-bore pipeline below
It stands and valve chamber.For example, connecting external diameter is below small in 50mm on the main pipeline of city gas pipeline or long-distance oil & gas pipeline
Caliber pipe, then pressure, temperature or other detection instrument are connect with small-bore pipeline, thus to the medium in main pipeline into
Row monitoring.In practical application, sometimes for small-bore pipeline is safeguarded in the case where main pipeline on-line production, repair or
Person's transformation, such as the small-bore pipeline that small-bore pipeline is truncated or is more renewed.In order to guarantee that maintenance, repairing or transformation are made
Industry is gone on smoothly, and needs to block the circulation of small-bore pipeline interior media in maintenance, repairing or transformation operation process.
In the prior art, it generallys use and small-bore pipeline is blocked to the mode of small-bore pipeline " being pinched "
But the circulation of medium in small-bore pipeline can not be thoroughly blocked by the way of " being pinched ", maintenance can be given, robbed
It repairs and is transformed operation and bring security risk.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of for blocking the pipe fitting of pipeline, and is based on the pipe
The method of the blocking pipeline of part, to thoroughly block outer diameter in 50mm pipeline internal medium below in the case where on-line production
Circulation, with guarantee maintenance, repairing and transformation operation safely, go on smoothly.
Specifically, including technical solution below:
In a first aspect, the embodiment of the invention provides a kind of for blocking the pipe fitting of pipeline, the outer diameter of the pipeline is
50mm is hereinafter, the pipe fitting includes: opposite opened main body, opposite opened disrance sleeve and the first plugging part；
The opposite opened disrance sleeve includes the first tube body and the second tube body, and first tube body and the second tube body all have
The sky that can accommodate pipeline to be blocked is formed after the semi-cylindrical recesses of both ends open, first tube body and the second tube body pairing
Chamber；
The opposite opened main body includes the first main body and the second main body；
First main body has the first groove and the closed first through hole of one end open, the other end of both ends open, institute
The axis for stating the first groove is vertical with the axis of the first through hole, and one end of the opening of the first through hole and described the
The connection of one groove；
Second main body has the second groove of both ends open and the second through-hole of both ends open, second groove
Axis is vertical with the axis of second through-hole, and one end of second through-hole is connected to second groove, and described
One plugging part is used to block the other end of second through-hole；
The opposite opened disrance sleeve is set in the cavity that first groove and second groove are combined to form, and
The shape of the inner surface for the cavity that first groove and second groove are combined to form and the opposite opened disrance sleeve
The shape of outer surface matches.
Specifically, first tube body and second tube body are in the hollow semi-cylindrical bodily form of both ends open, and described
The internal diameter of the first end of first tube body and second tube body is greater than the internal diameter of second end, first tube body and second pipe
The outer diameter of the first end of body is greater than the outer diameter of second end；
The internal diameter of the second end of first tube body and second tube body is matched with the outer diameter of the pipeline to be blocked,
Cavity that the first end of first tube body and second tube body is combined to form and described wait block there is annular between pipeline
Gap；
First main body includes the first part in the hollow semi-cylindrical bodily form of both ends open and is in one end open, another
Hold the second part of the closed hollow circuit cylinder bodily form, the axis of the first part and the second part is vertical, and described
One end of two fractional opens is connected to the inside of the first part；
Second main body includes in the Part III of the hollow semi-cylindrical bodily form of both ends open and in both ends open
The axis of the Part IV of the hollow round column bodily form, the Part III and the Part IV is vertical, and the one of the Part IV
End is connected to the inside of the Part III；
The internal diameter for the cavity that the first end of the first part and the first end of the Part III are combined to form with it is described
The outer diameter for the cylindrical body that the first end of first tube body and the first end of second tube body are combined to form matches, and described first
Point second end and the Part III the internal diameter of cavity that is combined to form of second end and the second end of first tube body and
The outer diameter for the cylindrical body that the second end of second tube body is combined to form matches.
Specifically, first plugging part includes: stifled plug, the first briquetting, the first blanking cover, retaining ring and the first sealing
Circle；
The plug is stifled to be arranged in inside the Part IV of second main body, and solid by screw thread and the Part IV
Fixed, the plug is stifled to have an one end open, mounting hole closed at one end, and the open one end of the mounting hole is towards the Part IV
Outside；
It is peripherally disposed on the stifled outer wall of the plug to have mounting groove, the retaining ring and first sealing ring setting
In the mounting groove；
First briquetting offsets with the Part IV far from the end of the Part III；
First blanking cover covers first briquetting and is fixed by the outer wall of screw thread and the Part IV.
Further, the pipe fitting further includes the second plugging part；
Second plugging part includes: two cross sectional shapes being arranged in the annular space in the of semi-circular shape
Two briquettings；
The third briquetting of second briquetting is covered,
Cover the third briquetting and with the outer wall of the first end of the first part and the Part III first
The second fixed blanking cover of the outer wall at end,
And the second sealing ring on the inner wall of second blanking cover is set.
Further, the pipe fitting further includes switching part；
The switching part includes: that two cross sectional shapes being arranged in the annular space are pressed in the second of semi-circular shape
Block；
And it is fixed with the outer wall of the first end of the outer wall of the first end of the first part and the Part III
Adapter.
Further, two sides of the first tube body radial direction, the second tube body radial direction two sides
Side, two sides of first part's radial direction of first main body, second main body Part III radial direction
Two sides, the second end of first part of first main body and the second end of Part III of second main body add
Work has welding groove.
Further, when first tube body and the second tube body pairing, first main body and second main body
After pairing, the axis of the second part of line and first main body between two sides of the first tube body radial direction
Between with 40 °~50 ° of angle.
Further, centering is provided on first tube body and the outer wall of the lesser part of the second outer tube diameter
Plane, plane is provided centrally with to pits in described pair.
Second aspect, the embodiment of the invention provides a kind of method for blocking pipeline, the outer diameter of the pipeline be 50mm with
Under, the method through the embodiment of the present invention implemented by pipe fitting described in first aspect, comprising the following steps:
First tube body of the opposite opened disrance sleeve and the second tube body are set in pipeline to be blocked close to main by step a
At the position of pipeline, later by first tube body and second pipe welding；
First main body of the opposite opened main body and the second main body are set on the opposite opened disrance sleeve by step b,
First main body and second main body are welded, and first main body and second main body and the main pipeline are welded
It connects；
Step c, in the end connecting valve of the second through-hole of second main body；
Tapping equipment connect with the valve, keeps the valve in the open state, by the tapping equipment by step d
Drill bit protruded by the valve in the second through-hole of second main body, pass through the opposite opened disrance sleeve after described
The tapping equipment is dismantled in aperture on the side wall of pipeline to be blocked later, and closes the valve；
Water-tight equipment is connect with the valve and is opened the valve by step e, by the water-tight equipment by sealing element
Be sent into from the aperture on the side wall of the pipeline to be blocked it is described wait block inside pipeline, by the sealing element block it is described to
Block the circulation of pipeline interior media；
The pipeline to be blocked is truncated step f, make the pipeline to be blocked end and the opposite opened disrance sleeve
End it is concordant, connect later by the end part seal of the pipeline to be blocked or by new pipeline with the pipeline to be blocked；
Step g dismantles the water-tight equipment, installs first plugging part.
Further, the step specifically includes:
Step g1 dismantles the water-tight equipment, closes the valve；
Retaining ring and the first sealing ring are installed to plug and blocked by step g2；
Step g3 opens the valve, inside stifled the second through-hole fixed to second main body of the plug, dismantles institute
Valve is stated, the first briquetting and the first blanking cover are installed later.
Technical solution provided in an embodiment of the present invention the utility model has the advantages that
It is provided in an embodiment of the present invention for blocking the pipe fitting of pipeline when in use, first by the of opposite opened disrance sleeve
One tube body and the second tube body are set in pipeline to be blocked at the position of main pipeline, later weld the first tube body and the second tube body
It connects；The first main body of opposite opened main body and the second main body are set on opposite opened disrance sleeve again, by the first main body and second
Main body welding, and the first main body and the second main body and main pipeline are welded；Later, connect in the end of the second through-hole of the second main body
Valve is connect, tapping equipment is connect, and keep valve in the open state with valve, the drill bit of tapping equipment is protruded by valve
In second through-hole of the second main body, across the aperture on the side wall of pipeline to be blocked after opposite opened disrance sleeve, disassemble later
Hole equipment, and close valve；After the completion of aperture, water-tight equipment is connect to simultaneously Open valve with valve, it will be close by water-tight equipment
Sealing is sent into from the aperture on the side wall of pipeline to be blocked wait block inside pipeline, is blocked by sealing element wait block inside pipeline
The circulation of medium.After being blocked in medium inside the pipeline, pipeline can be safeguarded, repaired or be transformed.
Flow of media of the outer diameter in 50mm pipeline below can thoroughly be blocked using pipe fitting provided in an embodiment of the present invention,
Guarantee going on smoothly for maintenance, repairing or transformation operation.Also, using pipe fitting provided in an embodiment of the present invention in pipeline internal pressure
Flow of media in pipeline still can be thoroughly blocked when power reaches 1.0MPa or more.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described
Fig. 1-1 is the axonometric drawing of the pipe fitting provided in an embodiment of the present invention for blocking pipeline；
Fig. 1-2 is the main view of the pipe fitting provided in an embodiment of the present invention for blocking pipeline；
Fig. 1-3 is the front sectional view of the pipe fitting provided in an embodiment of the present invention for blocking pipeline；
Fig. 1-4 is the top view of the pipe fitting provided in an embodiment of the present invention for blocking pipeline；
Fig. 2-1 is the axonometric drawing of opposite opened main body in the pipe fitting provided in an embodiment of the present invention for blocking pipeline；
Fig. 2-2 is the main view of opposite opened main body in the pipe fitting provided in an embodiment of the present invention for blocking pipeline；
Fig. 2-3 is the front sectional view of opposite opened main body in the pipe fitting provided in an embodiment of the present invention for blocking pipeline；
Fig. 2-4 is the cross-sectional view in Fig. 2-2 along the direction A-A；
Fig. 3-1 is the axonometric drawing of opposite opened disrance sleeve in the pipe fitting provided in an embodiment of the present invention for blocking pipeline；
Fig. 3-2 is the side view of opposite opened disrance sleeve in the pipe fitting provided in an embodiment of the present invention for blocking pipeline；
Fig. 3-3 is the cross-sectional view in Fig. 3-2 along the direction B-B；
Fig. 4-1 is the axonometric drawing of the first plugging part in the pipe fitting provided in an embodiment of the present invention for blocking pipeline；
Fig. 4-2 is the main view of the first plugging part in the pipe fitting provided in an embodiment of the present invention for blocking pipeline；
Fig. 4-3 is the main view section view of the first plugging part in the pipe fitting provided in an embodiment of the present invention for blocking pipeline
Figure；
Fig. 5-1 is the axonometric drawing of the second plugging part in the pipe fitting provided in an embodiment of the present invention for blocking pipeline；
Fig. 5-2 is the main view section view of the second plugging part in the pipe fitting provided in an embodiment of the present invention for blocking pipeline
Figure；
Fig. 6-1 is provided in an embodiment of the present invention for blocking the pipe fitting of pipeline to carry out aperture operation in use
Stereoscopic schematic diagram；
Fig. 6-2 is the main view of Fig. 6-1；
Fig. 6-3 is the enlarged drawing of dotted line frame internal structure in Fig. 6-2；
Fig. 7-1 is provided in an embodiment of the present invention for blocking the pipe fitting of pipeline to be sealed operation in use
Stereoscopic schematic diagram；
Fig. 7-2 is the main view of Fig. 7-1；
Fig. 7-3 is the enlarged drawing of dotted line frame internal structure in Fig. 7-2；
Appended drawing reference respectively indicates in figure:
1- opposite opened main body；
The first main body of 11-；
111- first part；
112- second part；
The second main body of 12-；
121- Part III；
122- Part IV；
2- opposite opened disrance sleeve；
The first tube body of 21-；
The second tube body of 22-；
The first plugging part of 3-；
31- plug is stifled；
311- mounting hole；
The first blanking cover of 32-；
The first briquetting of 33-；
34- retaining ring；
The first sealing ring of 35-；
The second plugging part of 4-；
The second briquetting of 41-；
The second blanking cover of 42-；
43- third briquetting；
The second sealing ring of 44-；
B1- centering plane；
B2- is to pits；
Y1- annular space；
Y2- opening area；
X1- first passage；
X2- second channel；
A1- first interface；
A2- second interface；
A3- third interface；
The 4th interface of a4-；
200- pipeline to be blocked；
300- main pipeline；
400- valve；
500- tapping equipment；
600- water-tight equipment.
Specific embodiment
To keep technical solution of the present invention and advantage clearer, below in conjunction with attached drawing to embodiment of the present invention make into
One step it is described in detail.Unless otherwise defined, all technical terms used in the embodiment of the present invention all have and art technology
The normally understood identical meaning of personnel.
In a first aspect, it is the pipe fitting of 50mm pipeline below, ginseng that the embodiment of the invention provides a kind of for blocking outer diameter
See Fig. 1-1,1-2,1-3 and 1-4, which includes: opposite opened main body 1, opposite opened disrance sleeve 2 and the first plugging part 3.
Wherein, referring to Fig. 3-1,3-2 and 3-3, opposite opened disrance sleeve 2 includes the first tube body 21 and the second tube body 22, the
One tube body 21 and the second tube body 22 all have the semi-cylindrical recesses of both ends open, after 22 pairing of the first tube body 21 and the second tube body
Form the cavity that can accommodate pipeline to be blocked.
- 1,2-2,2-3 and 2-4 referring to fig. 2, opposite opened main body 1 include the first main body 11 and the second main body 12.First main body
11 the first grooves and the closed first through hole of one end open, the other end with both ends open, the axis of the first groove and first
The axis of through-hole is vertical, and one end of the opening of first through hole is connected to the first groove.Second main body 12 has both ends open
The second groove and both ends open the second through-hole, the axis of the second groove is vertical with the axis of the second through-hole, and second logical
The one end in hole is connected to the second groove, and the first plugging part 3 is used to block the other end of the second through-hole.
Opposite opened disrance sleeve 2 is set in the cavity that the first groove and the second groove are combined to form, and the first groove and
The shape of the inner surface for the cavity that second groove is combined to form is matched with the shape of the outer surface of opposite opened disrance sleeve 2.
In pipe fitting provided in an embodiment of the present invention for blocking pipeline, since outer diameter is in the wall thickness of 50mm pipeline below
It is usually relatively thin, in order to increase the safety of subsequent job, by being arranged opposite opened disrance sleeve in the outside of pipeline 200 to be blocked
2 increase the wall thickness of small-bore pipeline to be blocked.It, when in use, will be split as shown in Fig. 6-1,6-2, Fig. 7-1 and Fig. 7-2
The first tube body 21 and the second tube body 22 of formula disrance sleeve 2 are set in 200 outside of pipeline to be blocked, and opposite opened disrance sleeve 2
Positioned at pipeline 200 to be blocked at the position of main pipeline 300, pipeline 200 to be blocked is made to be located at the first tube body 21 and the second pipe
In the cylindrical cavity that the semi-cylindrical recesses of body 22 are combined to form.By welding, such as argon arc welding or interruption spot welding are by first
Tube body 21 and the connection of the second tube body 22 pay attention to the outer wall that pipeline 200 to be blocked even is not soldered in welding, to prevent burn-through,
And reduce welding deformation.
Opposite opened main body 1 provides connecting interface for equipment used in the subsequent operation for blocking pipeline, and provides closed
Working space, to guarantee that the operation for blocking pipeline is gone on smoothly.As shown in Fig. 2-3 and 2-4, the first main body of opposite opened main body 1
11 have the four of the first passage X1 and second channel X2 that are mutually perpendicular to and are connected to formation one after 12 pairing of the second main body
Logical structure.Wherein, first passage X1 is combined to form by the first groove of the first main body 11 and the second groove of the second main body 12, the
Two channel X2 are combined to form by the first through hole of the first main body 11 and the second through-hole of the second main body 12.The both ends of first passage X1
Be it is open, i.e. the first interface a1 of four-way structure and third interface a3 are open；One end of second channel X2 be it is open,
The other end be it is closed, i.e. the second interface a2 of four-way structure is open, and the 4th interface a4 is closed.It is understood that
It is that first interface a1 and third interface a3 are opposite, second interface a2 and the 4th interface a4 are opposite.As Fig. 6-1,6-2, Fig. 7-1 and
Shown in Fig. 7-2, when in use, opposite opened disrance sleeve 2 is fixed on after blocking on pipeline, by the first of opposite opened main body 1
12 sets of main body 11 and the second main body opposite opened disrance sleeve 2 outside and the first main body 11 and the second main body 12 are welded, together
When the first main body 11 and the second main body 12 are welded with main pipeline 300, so that opposite opened main body is fixed on main pipeline 300.
It is understood that opposite opened disrance sleeve 2 is located in above-mentioned first passage X1, i.e. the first groove and second of the first main body 11
In the cavity formed after second groove pairing of main body 12.
As shown in 6-1,6-2 and 6-3, after opposite opened main body 1 is fixed, the connecting valve at above-mentioned second interface a2
400, such as ball valve, tapping equipment 500 is connect later, and keep valve 400 in the open state with valve 400, aperture is set
Standby 500 drill bit is protruded into the second through-hole of the second main body 12 by valve 400, wait hinder after opposite opened disrance sleeve 2
Aperture (the opening area Y2 as shown in Fig. 6-3) on the side wall of disconnected pipeline 200；Tapping equipment 500 is torn open from valve 400 later
It unloads down, and closes valve 400；Referring to Fig. 7-1,7-2 and 7-3, after the completion of aperture, water-tight equipment 600 is connect with valve 400
And Open valve, sealing element is sent into from the aperture on the side wall of pipeline 200 to be blocked by pipeline to be blocked by water-tight equipment 600
200 inside (i.e. in opening area Y2 shown in Fig. 6-3), the circulation of 200 interior media of pipeline to be blocked is blocked by sealing element.
After being blocked in medium inside the pipeline, pipeline can be safeguarded, repaired or be transformed.When maintenance, repairs or change
After making, after water-tight equipment 600 (together with sealing element), valve 400 are dismantled, using the first plugging part 3 by opposite opened master
The second interface a2 of body 1 is closed.
To sum up, medium of the outer diameter in 50mm pipeline below can thoroughly be blocked using pipe fitting provided in an embodiment of the present invention
Circulation guarantees going on smoothly for maintenance, repairing or transformation operation.Also, using pipe fitting provided in an embodiment of the present invention in pipe
Flow of media in pipeline still can be thoroughly blocked when pressure reaches 1.0MPa or more in road.
In the specific implementation, opposite opened disrance sleeve 2 can be using hollow " grenade " shape as shown in figure 3-1, i.e.,
First tube body 21 and the second tube body 22 are in the hollow semi-cylindrical bodily form of both ends open, and the first tube body 21 and the second tube body 22
The internal diameter of first end is greater than the internal diameter of second end, and the outer diameter of the first end of the first tube body 21 and the second tube body 22 is greater than second end
Outer diameter.It is understood that the inner cavity of hollow half cylinder is the hollow semi-cylindrical of above-mentioned first tube body 21 and the second tube body 22
The groove of cylinder shape.
Wherein, the internal diameter of the second end of the first tube body 21 and the second tube body 22 is matched with the outer diameter of pipeline 200 to be blocked,
There is annular space between the first end of first tube body 21 and the second tube body 22 cavity being combined to form and pipeline to be blocked 200
Y1.When in use, the second end of the first tube body 21 and the second tube body 22 is close to main pipeline.It can be injected in annular space Y1 close
Sealing, to guarantee sealing performance.
The material of opposite opened disrance sleeve 2 can select the easily weldering, automatic steel such as Q235 or 20#.It can be complete by one
Tube body diametrically split to obtaining the first tube body 21 and the second tube body 22.The first end of first tube body 21 and the second tube body 22
Diameter and the difference of diameter of second end can be 10mm~20mm.
Two sides of 21 radial direction of the first tube body, 22 radial direction of the second tube body two sides prefabricated be machined with
Welding groove, in order to the welding of the first tube body 21 and the second tube body 22.
As shown in Fig. 2-1,2-2,2-3 and 2-4, the specific implementation form of opposite opened main body 1 can be with are as follows: the first main body 11 packet
It includes in the first part 111 of the hollow semi-cylindrical bodily form of both ends open and in one end open, the closed hollow cylinder of the other end
The second part 112 of shape, first part 111 is vertical with the axis of second part 112, and the open one end of second part 112 with
The inside of first part 111 is connected to.It is understood that the inner cavity of first part 111 is the first of above-mentioned first main body 11
Groove, the inner cavity of second part 112 are the first through hole of above-mentioned first main body 11.
Second main body 12 includes in the Part III 121 of the hollow semi-cylindrical bodily form of both ends open and in both ends open
The Part IV 122 of the hollow round column bodily form, Part III 121 is vertical with the axis of Part IV 122, and the one of Part IV 122
End is connected to the inside of Part III 121.The inner cavity of Part III 121 is the second groove of above-mentioned second main body 12, and the 4th
The inner cavity of part 122 is the second through-hole of above-mentioned second main body 12.
(i.e. above-mentioned first is logical for the cavity that the first end of first part 111 and the first end of Part III 121 are combined to form
Road X1) internal diameter and the outer diameter of cylindrical body that is combined to form of the first end of the first tube body 21 and the first end of the second tube body 22 match
It closes, the internal diameter of the cavity that the second end of first part 111 and the second end of Part III 121 are combined to form and the first tube body 21
The outer diameter for the cylindrical body that second end and the second end of the second tube body 22 are combined to form matches.That is first part 111 and third portion
The cavity that the internal diameter for dividing the internal diameter of 121 first end to be greater than second end, first part 111 and Part III 121 are combined to form
In " grenade " shape.
The internal diameter (internal diameter of i.e. above-mentioned second channel X2) of second part 112 and Part IV 122 is slightly larger than to blocking tube
The outer diameter in road 200.
The forging material selection forging 16Mn that the material of opposite opened main body 1 can recommend according to GB 150 " pressure vessel ", wall
Thickness is calculated according to by internal pressure cylinder and reinforcement for openings principle.
Two sides of 111 radial direction of first part of the first main body 11, the Part III 121 of the second main body 12 are radial
The second end of the first part 111 of two sides and the first main body 11 in direction, the Part III 121 of the second main body 12
Second end is also all prefabricated to be machined with welding groove, wherein the welding groove positioned at side is used for the first main body 11 and the second main body
12 butt welding, the welding groove positioned at end are used for root bead, i.e., by the weldering of the first main body 11 and the second main body 12 and main pipeline 300
It connects.
It should be noted that when in use, should be staggered between opposite opened disrance sleeve 2 and the weld seam of opposite opened main body 1
Certain angle.As shown in Figs 1-4, when 22 pairing of the first tube body 21 and the second tube body, the first main body 11 and the second main body 12 are right
After conjunction, the axis of the second part 112 of line and the first main body 11 between two sides of 21 radial direction of the first tube body it
Between have angle α, and the degree of angle α be 40 °~50 °, preferably 45 °.
Since the outer diameter of pipeline 200 to be blocked is smaller, and the drill bit of tapping equipment will pass through the 4th of the second main body 12
Dividing 122 inner cavity to treat blocks pipeline 200 to carry out aperture, and the position of aperture is not easily controlled.For the ease of controlling the position of aperture
It sets, the plane b1 in turning pair on the outer wall of the first tube body 21 and the lesser part of 22 outer diameter of the second tube body, to middle plane b1
Be provided centrally with to pits b2.Make the axis of the Part IV 122 of an axis and the second main body 12 to pits b2
It is overlapped, makes drill bit and offset to pits b2 to can guarantee the position of aperture.
As shown in Figure 1-3, in a kind of optional embodiment of the embodiment of the present invention, the first end of opposite opened disrance sleeve 2
(one end i.e. far from main pipeline 300) is located at the outside of opposite opened main body 1, and the second end of opposite opened disrance sleeve 2 is (i.e. close
One end of main pipeline 300) it is located at the inside of opposite opened main body 1.Correspondingly, the first of the first main body 11 of opposite opened main body 1
It is machined with limited step respectively on the inner wall of the inner wall of part 111 and the Part III 121 of the second main body 12, opposite opened is isolated
The second end of casing 2 is limited.
Further, -1,4-2 and 4-3 referring to fig. 4, in the embodiment of the present invention, the first plugging part 3 include: plug it is stifled 31,
First briquetting 33, the first blanking cover 32, retaining ring 34 and the first sealing ring 35.Wherein, the of the second main body 12 is arranged in plug stifled 31
Inside four parts 122, and it is fixed by screw thread and Part IV 122, plug stifled 31 has one end open, mounting hole closed at one end
311, the open one end of mounting hole 311 is towards the outside of Part IV 122；It is peripherally disposed on the outer wall of plug stifled 31 to have peace
Tankage, retaining ring 34 and the first sealing ring 35 are arranged in mounting groove；First briquetting 33 is with Part IV 122 far from Part III
121 end offsets；First blanking cover 32 covers the first briquetting 33 and is fixed by the outer wall of screw thread and Part IV 122.
After being blocked by water-tight equipment 600 by pipeline to be blocked, and complete maintenance, repairing or transformation operation, first
Water-tight equipment 600 is dismantled, and closes valve 400；Plug stifled 31 is connect with tapping equipment 500 later and (such as substitutes aperture and sets
Standby 500 drill bit), valve 400 is opened, the plug stifled 31 of retaining ring 34 and the first sealing ring 35 will be installed by tapping equipment 500
It protrudes into the Part IV 122 of the second main body 12 of opposite opened main body 1, and the stifled 31 rotation rotation of plug is driven by tapping equipment 500
Tight screw thread；Later, tapping equipment 500 and valve 400 are dismantled, the first briquetting 33 and the first blanking cover 32 are installed, and screw first
Blanking cover 32 closes the end (i.e. second interface a2) of the Part IV 122 of the second main body 12.
It is understood that the inner and outer wall in the Part IV 122 of the second main body 12 is threaded, wherein
The screw thread of outer wall can select NPT2 inches of canalis spinalis sealing screw threads of American Standard, and the screw thread of inner wall selects generic connectivity screw thread.And
And second main body 12 Part IV 122 inner wall on be also machined with smooth sealing surface, cooperate with the first sealing ring 35 close
Envelope, sealing surface are located at the outside of threaded portion.The inwall processing of first blanking cover 32 has internal screw thread, and the outer wall of plug stifled 31 is machined with outer
Screw thread.Retaining ring 34 and the first sealing ring 35 are arranged in the same mounting groove, and multiple groups, such as two groups of retaining rings 34 and the can be set
One sealing ring 35.
Plug stifled 31 can be stifled using 2 cun of plugs, and the first sealing ring 35 can be 2 cun of O-ring seals.The material of plug stifled 31 can be with
For copper；The material of first sealing ring 35 can be rubber, preferably oil resistant, high-temperature resistant rubber；First briquetting 33 can use poly- four
Vinyl fluoride or hard rubber material；First blanking cover 32 can use forging material identical with opposite opened main body 1.
Further, pipe fitting provided in an embodiment of the present invention further includes the second plugging part 4, to the first of opposite opened main body
Interface a1 is blocked, or including switching part, new pipeline is connected at the first interface a1 of opposite opened main body.
Wherein, it is in semi-circular shape that the second plugging part 4, which may include: two cross sectional shapes being arranged in annular space Y1,
The second briquetting 41；The third briquetting 43 of the second briquetting 41 is covered, third briquetting 43 and the first end with first part 111 are covered
Outer wall and Part III 121 first end fixed the second blanking cover 42 of outer wall, and, be arranged in the second blanking cover 42
The second sealing ring 44 on the outer wall wall of the first end of the outer wall and Part III 121 of the first end of first part 111.
Can be after opposite opened main body 1 to be welded on to main pipeline 300, before treating the blocking progress aperture of pipeline 200, it can
(it can be epoxy resin to inject sealant in the annular space Y1 between opposite opened disrance sleeve 2 and pipeline to be blocked 200
Glue), later by the second briquetting 41 be pressed into annular space Y1 in, after adhesive curing to be sealed, realize opposite opened disrance sleeve 2 with wait hinder
Non-solder between disconnected pipeline 200, which seals, fixes, while guaranteeing that the medium in main pipeline 300 will not be from opposite opened disrance sleeve 2
It is revealed between pipeline 200 to be blocked.It will be after blocking pipeline 200 to block, along opposite opened separation sleeve by water-tight equipment 600
Pipeline 200 to be blocked is truncated for the end face of pipe 2.Third briquetting 43 and the second blanking cover 42 are installed later.Wherein, the second blanking cover 42
Inner surface be provided with the female mouth of connection, the outer wall of the first end of the outer wall and Part III 121 of the first end of first part 111
It is provided with the connection rim of the mouth that above-mentioned connection mother mouth matches, such as can be screw thread.Second briquetting 41 and third briquetting 43 can be with
Using polytetrafluoroethylene (PTFE) or hard rubber material, the second sealing ring 44 uses oil resistant, rubber material resistant to high temperature, the second blanking cover
42 use forging material identical with opposite opened main body 1.
Switching part may include: that two cross sectional shapes being arranged in annular space Y1 are in the second briquetting of semi-circular shape
41；And the adapter with the outer wall fixation of the first end of the outer wall of the first end of first part 111 and Part III 121.
Can be after opposite opened main body 1 to be welded on to main pipeline 300, before treating the blocking progress aperture of pipeline 200, it can
(it can be epoxy resin to inject sealant in the annular space Y1 between opposite opened disrance sleeve 2 and pipeline to be blocked 200
Glue), the second briquetting 41 is pressed into annular space Y1 later.When by water-tight equipment 600 will wait block pipeline 200 block after,
Pipeline 200 to be blocked is truncated along the end face of opposite opened disrance sleeve 2, adapter is installed, then by new pipeline and adapter
Connection.Adapter can be reducer union.
Second aspect, the embodiment of the invention provides a kind of method for blocking pipeline, the outer diameter of pipeline is 50mm hereinafter, should
The method pipe fitting that first aspect provides through the embodiment of the present invention is implemented, referring to Fig. 6-1,6-2,6-3 and 7-1,7-2,7-3,
This method specifically includes the following steps:
First tube body 21 of opposite opened disrance sleeve 2 and the second tube body 22 are set in pipeline 200 to be blocked and leaned on by step S1
At the position of nearly main pipeline 300, the first tube body 21 and the second tube body 22 are welded later.
First main body 11 of opposite opened main body 1 and the second main body 12 are set on opposite opened disrance sleeve 2 by step S2,
First main body 11 and the second main body 12 are welded, and the first main body 11 and the second main body 12 are welded with main pipeline 300.
Step S3, in end (i.e. second interface a2) connecting valve 400 of the second through-hole of the second main body 12.
Tapping equipment 500 connect with valve 400, keeps valve 400 in the open state, by tapping equipment 500 by step S4
Drill bit protruded by valve in the second through-hole of the second main body 12, in pipeline 200 to be blocked after opposite opened disrance sleeve 2
Side wall on aperture, dismantle tapping equipment 500 later, and close valve 400.
Water-tight equipment 600 is connect simultaneously Open valve 400 by step S5 with valve 400, will be sealed by water-tight equipment 600
Part is sent into inside pipeline 200 to be blocked from the aperture on the side wall of pipeline 200 to be blocked, and blocks pipeline to be blocked by sealing element
The circulation of 200 interior medias；
Pipeline 200 to be blocked is truncated, makes the end of pipeline 200 to be blocked and the end of opposite opened disrance sleeve 2 by step S6
Portion is concordant, connect later by the end part seal of pipeline 200 to be blocked or by new pipeline with pipeline 200 to be blocked；
Step S7 dismantles water-tight equipment 600, installs the first plugging part 3.
Further, it in the method provided in an embodiment of the present invention for blocking pipeline, is wrapped between step S2 and step S3
Include following steps:
Sealant is injected in annular space Y1 between opposite opened disrance sleeve 2 and pipeline to be blocked 200, later by
Two briquettings 41 are pressed into annular space Y1.After adhesive curing to be sealed, subsequent step is carried out.
It further, will be wait block by third briquetting 43 in the second plugging part 4 and the second blanking cover 42 in step S6
End part seal after the truncation of pipeline 200, the connection of new pipeline is realized by installing adapter.
Further, step S7 is specifically included:
Step S701 dismantles water-tight equipment 600, closes valve 400；
Retaining ring 34 and the first sealing ring 35 are installed on plug stifled 31 by step S702；
Step S703 opens valve, and plug stifled 31 is fixed to inside the second through-hole of the second main body 12, valve 400 is dismantled,
First briquetting 33 and the first blanking cover 32 are installed later.
Wherein, in step S702, tapping equipment installing stopper stifled 31 can be passed through.
In the method provided in an embodiment of the present invention for blocking pipeline, tapping equipment 500 and water-tight equipment 600 use this field
Conventional tapping equipment and water-tight equipment.Wherein, water-tight equipment 600 is specifically as follows Expansion sealing equipment, i.e., using poly-
Sealing element is sent into after the opening area Y2 for blocking pipeline 200 by the sealing element of tetrafluoroethene material, is applied to sealing element and is pressed
Power makes sealing element by compression swelling, is conducive to thoroughly block the flow of media in pipeline 200 to be blocked.
To sum up, using pipe fitting provided in an embodiment of the present invention and method, it can thoroughly block outer diameter in 50mm pipeline below
Interior flow of media guarantees going on smoothly for maintenance, repairing or transformation operation.And pipe fitting knot provided in an embodiment of the present invention
Structure is simple, good appearance, is convenient for operation.
It is upper described to be merely for convenience of it will be understood by those skilled in the art that technical solution of the present invention, not to limit this
Invention.All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this hair
Within bright protection scope.
Claims (10)
1. a kind of for blocking the pipe fitting of pipeline, the outer diameter of the pipeline is 50mm or less, which is characterized in that the pipe fitting packet
It includes: opposite opened main body (1), opposite opened disrance sleeve (2) and the first plugging part (3)；
The opposite opened disrance sleeve (2) includes the first tube body (21) and the second tube body (22), first tube body (21) and the
Two tube bodies (22) all have the semi-cylindrical recesses of both ends open, shape after first tube body (21) and the second tube body (22) pairing
At the cavity that can accommodate pipeline to be blocked；
The opposite opened main body (1) includes the first main body (11) and the second main body (12)；
First main body (11) has the first groove and the closed first through hole of one end open, the other end of both ends open, institute
The axis for stating the first groove is vertical with the axis of the first through hole, and one end of the opening of the first through hole and described the
The connection of one groove；
Second main body (12) has the second groove of both ends open and the second through-hole of both ends open, second groove
Axis is vertical with the axis of second through-hole, and one end of second through-hole is connected to second groove, and described
One plugging part (3) is used to block the other end of second through-hole；
The opposite opened disrance sleeve (2) is set in the cavity that first groove and second groove are combined to form, and
The shape of the inner surface for the cavity that first groove and second groove are combined to form and the opposite opened disrance sleeve (2)
The shape of outer surface match.
2. pipe fitting according to claim 1, which is characterized in that first tube body (21) and second tube body (22) are equal
In the hollow semi-cylindrical bodily form of both ends open, and the internal diameter of the first end of first tube body (21) and second tube body (22)
Greater than the internal diameter of second end, the outer diameter of the first end of first tube body (21) and second tube body (22) is greater than second end
Outer diameter；
The outer diameter phase of the internal diameter and the pipeline to be blocked of the second end of first tube body (21) and second tube body (22)
The cavity and the pipeline to be blocked that the first end of cooperation, first tube body (21) and second tube body (22) is combined to form
Between have annular space (Y1)；
First main body (11) includes the first part (111) in the hollow semi-cylindrical bodily form of both ends open and opens in one end
It puts, the second part (112) of the closed hollow circuit cylinder bodily form of the other end, the first part (111) and the second part
(112) axis is vertical, and one end that the second part (112) opens is connected to the inside of the first part (111)；
Second main body (12) includes in the Part III (121) of the hollow semi-cylindrical bodily form of both ends open and in both ends open
The hollow circuit cylinder bodily form Part IV (122), the axis of the Part III (121) and the Part IV (122) is vertical,
And one end of the Part IV (122) is connected to the inside of the Part III (121)；
The internal diameter for the cavity that the first end of the first part (111) and the first end of the Part III (121) are combined to form
The outer diameter phase for the cylindrical body being combined to form with the first end of first tube body (21) and the first end of second tube body (22)
Cooperation, the internal diameter for the cavity that the second end of the first part (111) and the second end of the Part III (121) are combined to form
The outer diameter phase for the cylindrical body being combined to form with the second end of first tube body (21) and the second end of second tube body (22)
Cooperation.
3. pipe fitting according to claim 2, which is characterized in that first plugging part (3) includes: to fill in stifled (31), the
One briquetting (33), the first blanking cover (32), retaining ring (34) and the first sealing ring (35)；
Described to fill in stifled (31) setting internal in the Part IV (122) of second main body (12), and passes through screw thread and described the
Four parts (122) are fixed, described to fill in stifled (31) with one end open, mounting hole closed at one end (311), the mounting hole
(311) outside of the open one end towards the Part IV (122)；
It is peripherally disposed on the outer wall for filling in stifled (31) to have mounting groove, the retaining ring (34) and first sealing ring
(35) it is arranged in the mounting groove；
First briquetting (33) offsets with the Part IV (122) far from the end of the Part III (121)；
First blanking cover (32) covers first briquetting (33) and is consolidated by screw thread and the outer wall of the Part IV (122)
It is fixed.
4. pipe fitting according to claim 2, which is characterized in that the pipe fitting further includes the second plugging part (4)；
Second plugging part (4) includes: that two cross sectional shapes being arranged in the annular space (Y1) are in semi-circular shape
The second briquetting (41)；
The third briquetting (43) of second briquetting (41) is covered,
Cover the third briquetting (43) and outer wall and the Part III with the first end of the first part (111)
(121) fixed the second blanking cover (42) of the outer wall of first end,
And the second sealing ring (44) being arranged on the inner wall of second blanking cover (42).
5. pipe fitting according to claim 2, which is characterized in that the pipe fitting further includes switching part；
The switching part includes: that two cross sectional shapes being arranged in the annular space (Y1) are pressed in the second of semi-circular shape
Block (41)；
And the outer wall with the first end of the outer wall of the first end of the first part (111) and the Part III (121)
Fixed adapter.
6. pipe fitting according to claim 2, which is characterized in that two sides of the first tube body (21) radial direction,
Two sides of the second tube body (22) radial direction, first part (111) radial direction of first main body (11)
Two sides, two sides of Part III (121) radial direction of second main body (12), first main body (11)
The second end of the Part III (121) of the second end of first part (111) and second main body (12) is machined with welding
Groove.
7. pipe fitting according to claim 6, which is characterized in that when first tube body (21) and second tube body (22)
After pairing, first main body (11) and second main body (12) pairing, two of the first tube body (21) radial direction
There is 40 °~50 ° of angle between the axis of the second part (112) of line and first main body (11) between side.
8. pipe fitting according to claim 2, which is characterized in that first tube body (21) and second tube body (22) are outside
Centering plane (b1) is provided on the outer wall of the lesser part of diameter, plane (b1's) is provided centrally with to concave in described pair
It cheats (b2).
9. a kind of method for blocking pipeline, the outer diameter of the pipeline is 50mm or less, which is characterized in that the method passes through right
It is required that 1~8 described in any item pipe fittings are implemented, comprising the following steps:
The first tube body (21) of the opposite opened disrance sleeve (2) and the second tube body (22) are set in pipeline to be blocked by step a
At the position of main pipeline, first tube body (21) and second tube body (22) are welded later；
The first main body (11) of the opposite opened main body (1) and the second main body (12) are set in the opposite opened and are isolated by step b
On casing (2), first main body (11) and second main body (12) are welded, and by first main body (11) and described
Second main body (12) and the main pipeline weld；
Step c, in the end connecting valve of the second through-hole of second main body (12)；
Tapping equipment connect with the valve, keeps the valve in the open state, by the brill of the tapping equipment by step d
Head is protruded by the valve in the second through-hole of second main body (12), after the opposite opened disrance sleeve (2)
Aperture on the side wall of the pipeline to be blocked, dismantles the tapping equipment later, and closes the valve；
Water-tight equipment is connect with the valve and is opened the valve by step d, by the water-tight equipment by sealing element from institute
The aperture feeding stated on the side wall of pipeline to be blocked is described wait block inside pipeline, is blocked by the sealing element described wait block
The circulation of pipeline interior media；
The pipeline to be blocked is truncated step f, make the pipeline to be blocked end and the opposite opened disrance sleeve (2)
End it is concordant, connect later by the end part seal of the pipeline to be blocked or by new pipeline with the pipeline to be blocked；
Step g dismantles the water-tight equipment, installs first plugging part (3).
10. according to the method described in claim 9, it is characterized in that, the step g is specifically included:
Step g1 dismantles the water-tight equipment, closes the valve；
Retaining ring (34) and the first sealing ring (35) are installed on plug stifled (31) by step g2；
Step g3 opens the valve, and the plug stifled (31) is fixed to inside the second through-hole of second main body (12), is torn open
The valve is unloaded, the first briquetting (33) and the first blanking cover (32) are installed later.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710768277.2A CN109424817A (en) | 2017-08-31 | 2017-08-31 | Method for blocking the pipe fitting of pipeline and blocking pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710768277.2A CN109424817A (en) | 2017-08-31 | 2017-08-31 | Method for blocking the pipe fitting of pipeline and blocking pipeline |
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| Publication Number | Publication Date |
|---|---|
| CN109424817A true CN109424817A (en) | 2019-03-05 |
Family
ID=65504570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710768277.2A Pending CN109424817A (en) | 2017-08-31 | 2017-08-31 | Method for blocking the pipe fitting of pipeline and blocking pipeline |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113305525A (en) * | 2021-05-08 | 2021-08-27 | 武汉科技大学 | Automatic installation mechanism for large-scale gas pipeline partition plate |
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| FR2812709A1 (en) * | 2000-08-01 | 2002-02-08 | Gaz De France | Method for mounting branch pipe on main gas pipe comprises fitting saddle over area where branch pipe is to be fitted, piercing main pipe through saddle, introducing branch pipe and fitting sealing sleeve over branch pipe and area around it |
| CN200999940Y (en) * | 2006-03-10 | 2008-01-02 | 中国石油天然气管道局维抢修分公司 | Small diameter open pore plugging four-way |
| 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 |
| CN106764190A (en) * | 2016-12-29 | 2017-05-31 | 武汉理工大学 | A kind of combination unit that branch pipe is installed for conveyance conduit with pressure |
| CN207179026U (en) * | 2017-08-31 | 2018-04-03 | 中国石油天然气集团公司 | For blocking the pipe fitting of pipeline |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113305525A (en) * | 2021-05-08 | 2021-08-27 | 武汉科技大学 | Automatic installation mechanism for large-scale gas pipeline partition plate |
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