CN110434436A - A kind of Long-distance Transmission Pipeline welding procedure - Google Patents
A kind of Long-distance Transmission Pipeline welding procedure Download PDFInfo
- Publication number
- CN110434436A CN110434436A CN201910606614.7A CN201910606614A CN110434436A CN 110434436 A CN110434436 A CN 110434436A CN 201910606614 A CN201910606614 A CN 201910606614A CN 110434436 A CN110434436 A CN 110434436A
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- Prior art keywords
- fixed
- locating ring
- long
- casing
- long distance
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/235—Preliminary treatment
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a kind of Long-distance Transmission Pipeline welding procedures, including long distance pipeline and communicating pipe, the connection seal of tube is fixed between two neighboring long distance pipeline, groove is offered on the long distance pipeline, the groove two sides are equipped with fixed frame, the fixed frame includes firm banking, left locating ring and right locating ring, and the left locating ring and the right locating ring are fixed on the fixed base by being hinged respectively, passes through fixed finger setting between the left locating ring and the right locating ring.The present invention on long distance pipeline by adding fixed frame, to achieve the purpose that long distance pipeline is fixed, improves the precision of nozzle weld, optimized interface group is to condition；In addition, fixed frame can also play the role of it is certain keep out the wind, as far as possible reduce wind speed welding quality influence.
Description
Technical field
The present invention relates to a kind of long distance pipeline welding procedure, specially a kind of Long-distance Transmission Pipeline welding procedure belongs to
Natural gas facility application field.
Background technique
The welding process of Long-distance Transmission Pipeline belongs to site operation, and construction landform, landforms butt welding in site operation
Connecing quality has vital influence, and since long distance pipeline can all encounter a variety of landform, landforms, difference leads to nozzle weld position
Diversification is set, interface group is poor to condition, weld gap is not easy to control；In addition, wind speed is also to influence welding quality in welding process
Factor.
Summary of the invention
The object of the invention is that providing a kind of Long-distance Transmission Pipeline welding procedure to solve the above-mentioned problems.
The present invention is achieved through the following technical solutions above-mentioned purpose, a kind of Long-distance Transmission Pipeline welding procedure, including
Long distance pipeline and communicating pipe, the connection seal of tube are fixed between two neighboring long distance pipeline, open up on the long distance pipeline
There is groove, the groove two sides are equipped with fixed frame, and the fixed frame includes firm banking, left locating ring and right locating ring, institute
State left locating ring and the right locating ring respectively by be hinged it is fixed on the fixed base, the left locating ring and described
Pass through fixed finger setting between right locating ring.
Preferably, the left locating ring is identical with the right locating ring model, the left locating ring or the right locating ring
Including the first link block and the second link block, described be hinged is separately fixed at first link block and second link block
Outer surface, first link block and second link block upper surface are equipped with fastening block, and running through between the fastening block has spiral shell
Line axis, the firm banking are horizontal structure, and the communicating pipe is stainless steel flexible hose, the length of the communicating pipe is 0.8~
1.0m。
Preferably, in the long distance pipeline along natural gas flow to being respectively equipped with delivery pipe and delivery cannula, the delivery pipe
Including guide pipe and first sleeve, the first sleeve is fixed on the guide pipe front end, and the delivery cannula includes guide pipe
With the second casing, second casing is fixed on the guide pipe front end, and the guiding seal of tube is fixed on the long distance pipeline
Interior, the first sleeve is connected to second casing.
Preferably, the guide pipe and the first sleeve are an integral structure, the guide pipe and second casing
It is an integral structure, the long distance pipeline is extended in second casing front end.
Preferably, the fixing axle of hollow structure is equipped in the first sleeve, the fixing axle is towards the guide pipe
It is on one side sealing structure, another side is hatch frame, and one side of the first sleeve towards the guide pipe is hatch frame, separately
It is on one side sealing structure, the fixing axle surface is equipped with first through hole, and second casing side is equipped with the second through-hole, and described the
Spring stack is equipped in two casings, the spring stack front end is fixed with sealing ring, the fixed hub by the connecting shaft of hollow structure
It is located in second casing, the connecting shaft is equipped with through hole plug, and the through hole plug is in second through-hole.
Preferably, the spring column bottom is fixed with welded plate, and the welded plate side wall is equipped with connecting rod, before the connecting rod
End is fixed on second internal surface of sleeve pipe, and the diameter of the spring stack is less than the diameter of the welded plate, the welded plate
Diameter is less than the internal diameter of second casing, and the diameter of the connecting shaft is less than the diameter of the spring stack.
Preferably, second internal surface of sleeve pipe is equipped with sealing ring limiting slot, and the sealing ring is limited embedded in the sealing ring
In the slot of position, the sealing ring is rubber material.
A kind of Long-distance Transmission Pipeline welding procedure, specifically includes the following steps:
1, groove is opened up at long distance pipeline crack, and cleans out all on the inside of groove and within the scope of the 25mm of groove two sides
Dirt, polishing groove two sides 10mm range inside spin weld seam is concordant with base material, and is in 30 ° of elevation angle gentle transitions, the root face of groove
Between 1.5~2.0mm；
2, long distance pipeline is dismantled from the communicating pipe at both ends, and firm banking is placed in long distance pipeline bottom, utilized
Fixed frame is fixed on groove two sides by left locating ring and right locating ring, and using fixed pin that left locating ring and right locating ring is accurate
Positioning；
3, implement welding process by using the method for manual down hill welding.
The beneficial effects of the present invention are: the present invention discloses a kind of Long-distance Transmission Pipeline welding procedure, by the defeated pipe of length
Fixed frame is added on road, to achieve the purpose that long distance pipeline is fixed, improves the precision of nozzle weld, optimized interface group
To condition；In addition, fixed frame can also play the role of it is certain keep out the wind, as far as possible reduce wind speed welding quality influence.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention.
Fig. 2 is fixed rack structure schematic diagram of the present invention.
Fig. 3 is long distance pipeline schematic diagram of internal structure of the present invention.
Fig. 4 is first sleeve schematic diagram of internal structure of the present invention.
Fig. 5 is the second casing of knot structure schematic diagram of the present invention.
Fig. 6 is spring stack structural schematic diagram of the present invention.
In figure: 1, long distance pipeline, 2, communicating pipe, 3, groove, 4, fixed frame, 5, delivery pipe, 6, delivery cannula, 7, guiding
Pipe, 8, first sleeve, the 9, second casing, the 10, second through-hole, 11, fixing axle, 12, first through hole, 13, spring stack, 14, connecting shaft,
15, sealing ring, 16, through hole plug, 17, sealing ring limiting slot, 18, welded plate, 19, connecting rod, 20, firm banking, 21, Zuo Dingwei
Circle, 22, right locating ring, 23, be hinged, the 24, first link block, the 25, second link block, 26, fixed pin, 27, fastening block, 28,
Thread spindle.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the orientation of the instructions such as term " on ", "lower", "inner" and "outside" or
Positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, without
It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore not
It can be interpreted as limitation of the present invention.In addition, term " first ", " second " are used for description purposes only, and should not be understood as indicating
Or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be and be directly connected to, can also be indirectly connected with, be can be by intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
It please refers to shown in Fig. 1-6, a kind of Long-distance Transmission Pipeline welding procedure, including long distance pipeline 1 and communicating pipe 2, institute
It states the sealing of communicating pipe 2 to be fixed between two neighboring long distance pipeline 1, groove 3, the groove 3 is offered on the long distance pipeline 1
Two sides are equipped with fixed frame 4, and the fixed frame 4 includes firm banking 20, left locating ring 21 and right locating ring 22, the left positioning
Circle 21 and the right locating ring 22 are fixed on the firm banking 20 by being hinged 23 respectively, the left locating ring 21 and institute
It states and is positioned between right locating ring 22 by fixed pin 26.
The left locating ring 21 is identical with right 22 model of locating ring, the left locating ring 21 or the right locating ring 22
It is described to be hinged 23 and be separately fixed at first link block 24 and described including the first link block 24 and the second link block 25
Two link blocks, 25 outer surface, first link block 24 and 25 upper surface of the second link block are equipped with fastening block 27, described tight
Gu the firm banking 20 is horizontal structure, and the communicating pipe 2 is stainless steel flexible hose, institute through there is thread spindle 28 between block 27
The length for stating communicating pipe 2 is 0.8~1.0m.
After long distance pipeline 1 is dismantled from communicating pipe 2, improve the flexibility of long distance pipeline 1, by long distance pipeline 1 through
First link block 24 and the second link block 25 are fixed the first link block 24 and 25 spiral of the second link block by thread spindle 28,
Left locating ring 21 and right locating ring 22 are fixed on long distance pipeline 1, and utilize fixed pin 26 by left locating ring 21 and right locating ring
22 is laterally fixed, opens up groove 3 again at this time, improves the precision of nozzle weld.
Include to delivery pipe 5 and delivery cannula 6, the delivery pipe 5 is respectively equipped with along natural gas flow in the long distance pipeline 1
Guide pipe 7 and first sleeve 8, the first sleeve 8 are fixed on 7 front end of guide pipe, and the delivery cannula 6 includes guide pipe
7 and second casing 9, second casing 9 be fixed on 7 front end of guide pipe, it is defeated that the sealing of guide pipe 7 is fixed on the length
In pipeline 1, the first sleeve 8 is connected to second casing 9.
There is communicating pipe 2 by flanged joint between two neighboring long distance pipeline 1, once it leaks, damaged length is defeated
Pipeline 1 is removed from communicating pipe 2, and delivery pipe 5 and delivery cannula 6 separate, and natural gas transmission terminates.
The guide pipe 7 and the first sleeve 8 are an integral structure, and the guide pipe 7 and second casing 9 are one
The long distance pipeline 1 is extended in body formula structure, 9 front end of the second casing.
Be equipped with the fixing axle 11 of hollow structure in the first sleeve 8, the fixing axle 11 towards the guide pipe 7 one
Face is sealing structure, and another side is hatch frame, and one side of the first sleeve 8 towards the guide pipe 7 is hatch frame, separately
It is on one side sealing structure, 11 surface of fixing axle is equipped with first through hole 12, and 9 side of the second casing is equipped with the second through-hole
10, second casing 9 is interior to be equipped with spring stack 13, and 13 front end of spring stack is fixed with sealing by the connecting shaft 14 of hollow structure
Circle 15, the fixing axle 11 is set in second casing 9, and the connecting shaft 14 is equipped with through hole plug 16, the through hole plug 16
In second through-hole 10.
13 bottom of spring stack is fixed with welded plate 18, and 18 side wall of welded plate is equipped with connecting rod 19, the connecting rod
19 front ends are fixed on 9 inner wall of the second casing, and the diameter of the spring stack 13 is less than the diameter of the welded plate 18, described
The diameter of welded plate 18 is less than the internal diameter of second casing 9, and the diameter of the connecting shaft 14 is less than the diameter of the spring stack 13.
Second casing, 9 inner wall is equipped with sealing ring limiting slot 17, and the sealing ring 15 is limited embedded in the sealing ring
In slot 17, the sealing ring 15 is rubber material.
Extruding by fixing axle 11 to sealing ring 15, sealing ring 15 bounce back to the second through-hole under the action of spring stack 13
10 lower ends, through hole plug 16 fall off from the second through-hole 10, and natural gas circulates along the second through-hole 10 and first through hole 12.
After dismantling long distance pipeline 1, the pressure acted on sealing ring 15 disappears, under the effect of 13 elastic force of spring stack, sealing
Circle 15 is shot back in sealing ring limiting slot 17, and through hole plug 16 is squeezed into the second through-hole 10, prevents natural gas in long distance pipeline 1
Flowing, provides possibility for the implementation of welding process.
Embodiment one
Specific welding process is as follows:
1, open up groove 3 at 1 crack of long distance pipeline, and clean out on the inside of groove and within the scope of the 25mm of groove two sides one
Dirt is cut, polishing 3 two sides 10mm range inside spin weld seam of groove is concordant with base material, and is in 30 ° of elevation angle gentle transitions, groove 3
Root face is between 1.5~2.0mm；
2, long distance pipeline 1 is dismantled from the communicating pipe 2 at both ends, and firm banking 20 is placed in 1 bottom of long distance pipeline,
Fixed frame 4 is fixed on 3 two sides of groove using left locating ring 21 and right locating ring 22, and utilizes fixed pin 26 by left locating ring 21
With right 22 precise positioning of locating ring；
3, implement welding process by using the method for manual down hill welding.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (8)
1. a kind of Long-distance Transmission Pipeline welding procedure, including long distance pipeline (1) and communicating pipe (2), communicating pipe (2) sealing
It is fixed between two neighboring long distance pipeline (1), it is characterised in that: it is offered groove (3) on the long distance pipeline (1), it is described
Groove (3) two sides are equipped with fixed frame (4), and the fixed frame (4) includes firm banking (20), left locating ring (21) and right positioning
It encloses (22), the left locating ring (21) and the right locating ring (22) are fixed on the firm banking by being hinged (23) respectively
(20) it on, is positioned between the left locating ring (21) and the right locating ring (22) by fixed pin (26).
2. a kind of Long-distance Transmission Pipeline welding procedure according to claim 1, it is characterised in that: the left locating ring
(21) identical with right locating ring (22) model, the left locating ring (21) or the right locating ring (22) include the first connection
Block (24) and the second link block (25), be hinged (23) are separately fixed at first link block (24) and second company
Block (25) outer surface is connect, first link block (24) and the second link block (25) upper surface are equipped with fastening block (27), institute
It states through having thread spindle (28) between fastening block (27), the firm banking (20) is horizontal structure, and the communicating pipe (2) is not
Become rusty steel hose, and the length of the communicating pipe (2) is 0.8~1.0m.
3. a kind of Long-distance Transmission Pipeline welding procedure according to claim 1, it is characterised in that: the long distance pipeline
(1) along natural gas flow to being respectively equipped with delivery pipe (5) and delivery cannula (6) in, the delivery pipe (5) include guide pipe (7) and
First sleeve (8), the first sleeve (8) are fixed on the guide pipe (7) front end, and the delivery cannula (6) includes guide pipe
(7) and the second casing (9), second casing (9) are fixed on the guide pipe (7) front end, and guide pipe (7) sealing is fixed
In the long distance pipeline (1), the first sleeve (8) is connected to second casing (9).
4. a kind of Long-distance Transmission Pipeline welding procedure according to claim 3, it is characterised in that: the guide pipe (7)
It is an integral structure with the first sleeve (8), the guide pipe (7) and second casing (9) are an integral structure, described
Extend the long distance pipeline (1) in second casing (9) front end.
5. a kind of Long-distance Transmission Pipeline welding procedure according to claim 3 or claim 4, it is characterised in that: institute
State the fixing axle (11) that hollow structure is equipped in first sleeve (8), the one side of the fixing axle (11) towards the guide pipe (7)
For sealing structure, another side is hatch frame, and one side of the first sleeve (8) towards the guide pipe (7) is hatch frame,
Another side is sealing structure, and fixing axle (11) surface is equipped with first through hole (12), and the second casing (9) side is equipped with the
Two through-holes (10), second casing (9) is interior to be equipped with spring stack (13), the company that spring stack (13) front end passes through hollow structure
Axis (14) is fixed with sealing ring (15), and the fixing axle (11) is set in second casing (9), is set on the connecting shaft (14)
Have through hole plug (16), the through hole plug (16) is in second through-hole (10).
6. a kind of Long-distance Transmission Pipeline welding procedure according to claim 5, it is characterised in that: the spring stack (13)
Bottom is fixed with welded plate (18), and welded plate (18) side wall is equipped with connecting rod (19), and connecting rod (19) front end is fixed on
On second casing (9) inner wall, the diameter of the spring stack (13) is less than the diameter of the welded plate (18), the welded plate
(18) diameter is less than the internal diameter of second casing (9), and the diameter of the connecting shaft (14) is less than the straight of the spring stack (13)
Diameter.
7. a kind of Long-distance Transmission Pipeline welding procedure according to claim 5, it is characterised in that: second casing
(9) inner wall is equipped with sealing ring limiting slot (17), and the sealing ring (15) is described close in the sealing ring limiting slot (17)
Seal (15) is rubber material.
8. according to claim 1 or a kind of Long-distance Transmission Pipeline welding procedure as claimed in claim 2, it is characterised in that: tool
Body the following steps are included:
1, groove (3) are opened up at long distance pipeline (1) crack, and clean out on the inside of groove and within the scope of the 25mm of groove two sides one
Dirt is cut, polishing groove (3) two sides 10mm range inside spin weld seam is concordant with base material, and is in 30 ° of elevation angle gentle transitions, groove
(3) root face is between 1.5~2.0mm；
2, long distance pipeline (1) is dismantled from the communicating pipe (2) at both ends, and firm banking (20) is placed in long distance pipeline (1)
Fixed frame (4) is fixed on groove (3) two sides using left locating ring (21) and right locating ring (22), and utilizes fixed pin by bottom
(26) by left locating ring (21) and right locating ring (22) precise positioning；
3, implement welding process by using the method for manual down hill welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910606614.7A CN110434436A (en) | 2019-07-05 | 2019-07-05 | A kind of Long-distance Transmission Pipeline welding procedure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910606614.7A CN110434436A (en) | 2019-07-05 | 2019-07-05 | A kind of Long-distance Transmission Pipeline welding procedure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110434436A true CN110434436A (en) | 2019-11-12 |
Family
ID=68429540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910606614.7A Pending CN110434436A (en) | 2019-07-05 | 2019-07-05 | A kind of Long-distance Transmission Pipeline welding procedure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110434436A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114505626A (en) * | 2022-02-18 | 2022-05-17 | 刘展 | Auxiliary equipment for construction of oil and gas long-distance pipeline and construction method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114505626A (en) * | 2022-02-18 | 2022-05-17 | 刘展 | Auxiliary equipment for construction of oil and gas long-distance pipeline and construction method thereof |
| CN114505626B (en) * | 2022-02-18 | 2024-05-28 | 刘展 | Auxiliary equipment for construction of oil and gas long-distance pipeline and construction method thereof |
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Application publication date: 20191112 |