CN106015776A - Steel pipe free of field welding and construction method thereof - Google Patents
Steel pipe free of field welding and construction method thereof Download PDFInfo
- Publication number
- CN106015776A CN106015776A CN201610658346.XA CN201610658346A CN106015776A CN 106015776 A CN106015776 A CN 106015776A CN 201610658346 A CN201610658346 A CN 201610658346A CN 106015776 A CN106015776 A CN 106015776A
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- Prior art keywords
- steel
- pipe
- steel pipe
- site welding
- ring
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
- F16L13/02—Welded joints
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
Abstract
The invention discloses a steel pipe free of field welding and a construction method thereof. The steel pipe free of field welding comprises a steel cylinder, a spigot steel ring and a socket steel ring, wherein the spigot steel ring and the socket steel ring are arranged at the two ends of the steel cylinder. The socket steel ring is connected to one end of the steel cylinder in a lap welding mode, the spigot steel ring is connected to the other end of the steel cylinder in a butt welding mode, and a sealing groove is formed in the spigot steel ring and used for containing a rubber ring. Compared with the prior art, the steel pipe free of field welding and the construction method thereof have the advantages that the steel pipe free of field welding can be welded beyond the field and is light, fast and convenient to install and capable of adapting to complicated geological conditions; compared with pipelines of the same kind, the steel pipe free of field welding is hardly influenced by uneven settlement of foundations and earthquakes.
Description
Technical field
The present invention relates to the municipal pipeline engineering in national basis construction project, water pipeline engineering, petroleum pipeline
Road field of engineering technology, exempts from Site Welding steel pipe and construction method thereof particularly to one.
Background technology
Existing Prestressed concrete cylinder pipe (PCCP) uses concrete tube core, the pipeline list of PCCP
Position quality relatively other tubing weights, and the socket joint that the bellmouth steel loop that PCCP pipeline uses and socket steel ring are formed is even
The mode that connects but is doted on by vast pipeline mounting construction unit, because socket joint connects easy for installation, and installation rate
Hurry up, manpower consumption is low；Secondly steel pipe (SP) unit mass is relatively light, but but needs to use Site Welding,
Pipe installing speed is slow, and pipe joint welds costly, and some more special pipeline engineering projects are on-the-spot
Not allowing welding, these cause certain bottleneck to existing steel pipe supply market.
Summary of the invention
In order to overcome the disadvantages mentioned above of prior art, the invention provides one and exempt from Site Welding steel pipe and execute
Work method.
The technical solution adopted for the present invention to solve the technical problems is: one exempts from Site Welding steel pipe, including
Steel cylinder and the socket steel ring and the bellmouth steel loop that are arranged on steel cylinder two ends；Described bellmouth steel loop joint welding is connected to steel cylinder one
End, described socket steel ring, to being welded in the steel cylinder other end, is provided with seal groove for placing on socket steel ring
Rubber ring.
Present invention also offers a kind of construction method exempting from Site Welding steel pipe, comprise the steps:
Step one, in factory, the welding of socket steel ring, bellmouth steel loop and steel cylinder is combined into and exempts from Site Welding steel
Pipe, described in exempt from the end surface inclination≤9mm of Site Welding steel pipe, weld seam continuous formation, weld flush≤
1.5mm；
Step 2, guarantee to exempt from Site Welding steel pipe after presentation quality, dimensional discrepancy meet quality control requirement,
Carry out ultrasonic method or ray method inspection, after the assay was approved, remove and exempt from Coiling Welded Pipe Superficial Foreign Body, then manage
Road preservative treatment；
Step 3, first rubber ring is positioned over Coiling Welded Pipe socket steel ring of exempting to be installed when installing at the construction field (site)
In seal groove, and in exempting to spray on Coiling Welded Pipe socket steel ring seal groove and cushion rubber environmental protection lubriation material, secondly exist
Two joints to be installed exempt from Site Welding steel pipe steel wire rope on bolt, then by the bellmouth of steel pipe to be installed and exempt from welding steel
Frame entablature at pipe back, fastens set steel wire rope at crossbeam two ends, steel wire rope is connected with jack and is fastened aligns,
Then exempt from Site Welding steel pipe both sides to synchronize to forget about it chain, hold until the socket steel ring packaging rubber ring is drawn in
Mouth steel loop is interior and consolidates；Then from connector test inlet opening, two joints are exempted from Site Welding steel pipe interface gaps to carry out
The water pressure test, it is ensured that sealing joint requirement.
Compared with prior art, the positive effect of the present invention is:
(1) exempt from Site Welding steel pipe can not weld at the scene.
(2) Site Welding steel pipe lighter in weight is exempted from.
(3) Site Welding penstock installation is exempted from convenient.
(4) exempt from Site Welding steel pipe and adapt to complex geological condition, compare similar Pipeline Ground differential settlement
Less on its impact with earthquake.
Accompanying drawing explanation
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein:
Fig. 1 is the structural representation exempting from Site Welding steel pipe；
Fig. 2 is the mounting means schematic diagram exempting from Site Welding steel pipe.
Detailed description of the invention
One exempts from Site Welding steel pipe, as depicted in figs. 1 and 2, including: socket steel ring 1, bellmouth steel loop
2, steel cylinder 3, rubber ring 4, connector test inlet opening 5 etc., wherein:
Socket steel ring 1 and bellmouth steel loop 2 are respectively provided with steel cylinder two ends；Bellmouth steel loop 2 includes setting gradually
Divergent segment, straight length and converging transition, its converging transition joint welding is connected to steel cylinder 3 one end, and socket steel ring 1 is to welding
In steel cylinder 3 other end, socket steel ring 1 arranges two seal grooves for placing rubber ring 4, at two
Connector test inlet opening 5 it is provided with between seal groove.
The thickness of described steel cylinder 3 is more than or equal to 4mm, and steel cylinder is the dominant structural moieties of pipeline, undertakes outside pipe
Overburden load, car load, mound load etc., and undertake tube fluid pressure, and smooth inner surface is provided
Being beneficial to reduce the coefficient of roughness, steel cylinder has impervious effect simultaneously.
Socket steel ring 1 and bellmouth steel loop 2 use automatic technology polish to complete in factory, it is ensured that
Part quality, improves efficiency, and replaces the elasticity being accomplished manually socket steel ring 1 and bellmouth steel loop 2 steel plate
Ultimate strength expansion process, with ensure design require accurate dimension, it is ensured that dimensional accuracy, copying accuracy,
Surface quality, dimensioned precision ± 20～30 μm, turning, bottom surface R value can≤0.04mm, surface roughness
≤Ra1.6μm.The hoop interface gaps of socket steel ring 1 and bellmouth steel loop 2 is 0.5mm～2mm, longitudinally connects
Mouth gap is 15mm～25mm, and arranges connector test inlet opening on socket steel ring 1, and uses and pipeline
The material that interior conveying liquid phase adapts to is filled, and bellmouth steel loop 2 thickness matches with pipeline nominal bore diameter, thickness
More than or equal to 6mm.
Present invention also offers a kind of construction method exempting from Site Welding steel pipe, comprise the steps:
Step one, socket steel ring 1, bellmouth steel loop 2 and steel cylinder 3 complete welding combination, bellmouth in factory
Steel loop 2 overlap joint is welded in steel cylinder 3 one end, and socket steel ring 1 is butt-welded in steel cylinder 3 other end, completes exempting from of combination
Site Welding Steel pipe end surface gradient≤9mm, weld seam continuous formation, weld flush≤1.5mm；
Step 2, complete combination exempt from Site Welding steel pipe, meet quality in presentation quality, dimensional discrepancy etc.
After controlling to require, carry out ultrasonic method or ray method inspection, after all inspection projects are qualified, remove and exempt from welding steel
Tube-surface foreign body, then carries out pipeline corrosion protection process；
Step 3, all above step all complete in factory, and being transported to job site can install, peace
First rubber ring is positioned over during dress in two seal grooves exempting from Coiling Welded Pipe socket steel ring 1, at two joints to be installed
Exempting from Site Welding steel pipe steel wire rope on bolt, at the bellmouth back of steel pipe to be drawn in, frame entablature, uses steel wire
Rope and jack (chain block) connect and tighten and align, and both sides synchronize to draw chain sling, will package rubber ring
Socket steel ring draw in bellmouth steel loop and consolidate；Exempt from Site Welding steel pipe need to borrow turn construction time, scene to be exempted from
Adjust again after welded still pipe interface installation and borrow corner.After pipe laying, for preventing former joint (the most front 3
To 5 joints) the pipe mouth of pipe moves, and steel wire rope and jack can be used to interlock against.Treat socket steel ring and bellmouth steel
Ring is installed after consolidating and is carried out the water pressure test from connector test inlet opening to exempting from Coiling Welded Pipe interface gaps, connects to ensure
Mouth seal request.
Claims (10)
1. exempt from Site Welding steel pipe for one kind, it is characterised in that: include steel cylinder and be arranged on inserting of steel cylinder two ends
Mouth steel loop and bellmouth steel loop；Described bellmouth steel loop joint welding is connected to steel cylinder one end, and described socket steel ring is to being welded in
The steel cylinder other end, is provided with seal groove for placing rubber ring on socket steel ring.
One the most according to claim 1 exempts from Site Welding steel pipe, it is characterised in that: described sealing
Groove is two.
One the most according to claim 2 exempts from Site Welding steel pipe, it is characterised in that: close at two
Connector test inlet opening it is provided with between sealing groove.
One the most according to claim 1 exempts from Site Welding steel pipe, it is characterised in that: described bellmouth
Steel loop includes divergent segment, straight length and the converging transition set gradually.
One the most according to claim 1 exempts from Site Welding steel pipe, it is characterised in that: described steel cylinder
Thickness more than or equal to 4mm.
One the most according to claim 1 exempts from Site Welding steel pipe, it is characterised in that: described socket
The hoop interface gaps of steel loop and bellmouth steel loop is 0.5mm～2mm, and longitudinal interface gap is 15mm～25mm.
One the most according to claim 1 exempts from Site Welding steel pipe, it is characterised in that: described bellmouth
The thickness of steel loop matches with pipeline nominal bore diameter, and thickness is more than or equal to 6mm.
8. the construction method exempting from Site Welding steel pipe, it is characterised in that: comprise the steps:
Step one, in factory, the welding of socket steel ring, bellmouth steel loop and steel cylinder is combined into and exempts from Site Welding steel
Pipe, described in exempt from the end surface inclination≤9mm of Site Welding steel pipe, weld seam continuous formation, weld flush≤1.5mm；
Step 2, guarantee to exempt from Site Welding steel pipe after presentation quality, dimensional discrepancy meet quality control requirement,
Carry out ultrasonic method or ray method inspection, after the assay was approved, remove and exempt from Coiling Welded Pipe Superficial Foreign Body, then manage
Road preservative treatment；
Step 3, first rubber ring is positioned over Coiling Welded Pipe socket steel ring of exempting to be installed when installing at the construction field (site)
In seal groove, and in exempting to spray on Coiling Welded Pipe socket steel ring seal groove and cushion rubber environmental protection lubriation material, secondly exist
Two joints to be installed exempt from Site Welding steel pipe steel wire rope on bolt, then by the bellmouth of steel pipe to be installed and exempt from welding steel
Frame entablature at pipe back, fastens set steel wire rope at crossbeam two ends, steel wire rope is connected with jack and is fastened aligns,
Then exempt from Site Welding steel pipe both sides to synchronize to forget about it chain, hold until the socket steel ring packaging rubber ring is drawn in
Mouth steel loop is interior and consolidates；Then from connector test inlet opening, two joints are exempted from Site Welding steel pipe interface gaps to carry out
The water pressure test, it is ensured that sealing joint requirement.
A kind of construction method exempting from Site Welding steel pipe the most according to claim 8, it is characterised in that:
Described socket steel ring and bellmouth steel loop use the proof strength expansion process of steel plate, it is ensured that dimensioned essence
Degree ± 20～30 μm, turning, bottom surface R value≤0.04mm, surface roughness≤Ra1.6 μm.
A kind of construction method exempting from Site Welding steel pipe the most according to claim 8, it is characterised in that:
After pipe laying, former joints are exempted from the mouth of pipe steel wire rope of Site Welding steel pipe and jack be locked in below exempt from site welding
Connect on the mouth of pipe of steel pipe, move with the mouth of pipe preventing former joint from exempting from Site Welding steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610658346.XA CN106015776A (en) | 2016-08-11 | 2016-08-11 | Steel pipe free of field welding and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610658346.XA CN106015776A (en) | 2016-08-11 | 2016-08-11 | Steel pipe free of field welding and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106015776A true CN106015776A (en) | 2016-10-12 |
Family
ID=57135131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610658346.XA Pending CN106015776A (en) | 2016-08-11 | 2016-08-11 | Steel pipe free of field welding and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106015776A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201462251U (en) * | 2009-07-09 | 2010-05-12 | 扬州广鑫机械有限公司 | Socket-type force pipe connector |
| CN202203538U (en) * | 2011-09-08 | 2012-04-25 | 天津市泽宝水泥制品有限公司 | Liner type prestressed steel cylinder concrete pipe for jacking construction |
| US20140117663A1 (en) * | 2012-10-26 | 2014-05-01 | Munro Ltd. | Pipe connection to form a liquid tight seal and method of forming the same |
| CN104405975A (en) * | 2014-09-02 | 2015-03-11 | 吉林钰翎珑钢管钢构制造有限公司 | Steel pipe with bell and spigot joints |
| CN205048031U (en) * | 2015-10-21 | 2016-02-24 | 宁夏青龙管业股份有限公司 | Anticorrosive steel pipe is used in water delivery with bell and spigot connects |
| CN205877474U (en) * | 2016-08-11 | 2017-01-11 | 四川国统混凝土制品有限公司 | On --spot welding steel pipe exempts from |
-
2016
- 2016-08-11 CN CN201610658346.XA patent/CN106015776A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201462251U (en) * | 2009-07-09 | 2010-05-12 | 扬州广鑫机械有限公司 | Socket-type force pipe connector |
| CN202203538U (en) * | 2011-09-08 | 2012-04-25 | 天津市泽宝水泥制品有限公司 | Liner type prestressed steel cylinder concrete pipe for jacking construction |
| US20140117663A1 (en) * | 2012-10-26 | 2014-05-01 | Munro Ltd. | Pipe connection to form a liquid tight seal and method of forming the same |
| CN104405975A (en) * | 2014-09-02 | 2015-03-11 | 吉林钰翎珑钢管钢构制造有限公司 | Steel pipe with bell and spigot joints |
| CN205048031U (en) * | 2015-10-21 | 2016-02-24 | 宁夏青龙管业股份有限公司 | Anticorrosive steel pipe is used in water delivery with bell and spigot connects |
| CN205877474U (en) * | 2016-08-11 | 2017-01-11 | 四川国统混凝土制品有限公司 | On --spot welding steel pipe exempts from |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161012 |