CN204420341U - A kind of Large-sized spiral welded pipe with metal inner lining - Google Patents
A kind of Large-sized spiral welded pipe with metal inner lining Download PDFInfo
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- CN204420341U CN204420341U CN201420833364.3U CN201420833364U CN204420341U CN 204420341 U CN204420341 U CN 204420341U CN 201420833364 U CN201420833364 U CN 201420833364U CN 204420341 U CN204420341 U CN 204420341U
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- liner
- spiral
- steel band
- wall
- inner lining
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Abstract
The utility model discloses a kind of Large-sized spiral welded pipe with metal inner lining.Steel pipe comprises the body rolled by main ribbon spiral; Inboard wall of tube body is provided with the first liner and the second liner, first liner spiral fits in the surface of main steel band, and the width of the first liner is less than the width of main steel band, second liner spiral fits in the spiral-shaped seam formed between adjacent tubes, and the first liner welding that the left and right sides of the second liner is adjacent respectively, the first liner and the second liner cover whole inboard wall of tube body; Be provided with along tube wall spiral the stiffening ring that cross section is semi-closed shape, between this stiffening ring inwall and tube wall, form spiral helicine passage.Advantage is that the metal inner lining that steel pipe inner wall is arranged can improve anti-corrosive properties and the wear resistance of steel pipe, avoids fluid contamination; The stiffening ring that outer wall of steel pipe is arranged can improve tube wall circumference second moment of area, and the general thickness of steel pipe of wall ratio of main steel band is thinning, reduces costs.
Description
Technical field
The utility model relates to a kind of steel pipe, particularly relates to a kind of Large-sized spiral welded pipe with metal inner lining.
Background technique
At present, generally use Cemented filling fluid, conventional pipeline has cement pipe, plastic tube, Ordinary Steel steel pipe, Stainless Steel Tube and Coating Steel Pipe etc.Wherein, cement pipe is material with cement and reinforcing bar, uses a kind of prefabricated pipeline that centrifugal principle manufactures, its Engineering Overall cost is low, but easily leaks, internal pressure-resistant ability, can not be used as water pipe, can only be used as waste pipe, bore can not be too large simultaneously, general less than 3 meters or 3 meters, every pipe joint can not be oversize, and joint is many, constructional difficulties, will do basis during construction, construction cost is high.Plastic tube is raw material with plastic resin, adds stabilizer and other additive, form in tube producer through extrusion process, and quality is light, easy to process, but bore can not be too large, and mechanical strength is low, and anti-damage performance is poor, not wear-resistant, and non-refractory is easily aging.Ordinary Steel steel pipe is the steel pipe made with carbon steel, and inwall is wear-corrosion resistance not, and it is too large that bore can not do, and tube wall thickening during heavy caliber, cost is high.Stainless Steel Tube then cost is too high.Coating Steel Pipe bore can not be too large, and zinc-plated be pollute industry, large to environmental disruption, and zinc coat is thinner, general thickness is less than 0.1mm, fragile.Therefore, for the deficiency of above-mentioned pipeline, urgently develop a kind of Novel pipe that can overcome the above problems.
Model utility content
Model utility object: the purpose of this utility model is to provide a kind of spiral welded steel pipe improving anti-corrosive properties and wear resistance, bore is large, tube wall is thin band metal inner lining.
Technological scheme: steel pipe described in the utility model, comprises the body rolled by main ribbon spiral; Inboard wall of tube body is provided with the first liner and the second liner, described first liner spiral fits in the surface of main steel band, and the width of the first liner is less than the width of main steel band, described second liner spiral fits in the spiral-shaped seam formed between adjacent tubes, and the first liner welding that the left and right sides of the second liner is adjacent respectively, the first liner and the second liner cover whole inboard wall of tube body; Be provided with along tube wall spiral the stiffening ring that cross section is semi-closed shape, between this stiffening ring inwall and tube wall, form spiral helicine passage.
Wherein, described first liner or the second liner weld with main steel band.
The pore be provided with for gas between emptying described main steel band and the first liner or the second liner is lining with in described first liner or second.
Anticorrosion liquid is filled in passage between described stiffening ring inwall and tube wall.
The making method of steel pipe described in the utility model, comprises the steps:
At the stiffening ring steel band that main steel band lower surface laminating cross section is semi-closed shape, to fit the first liner steel band at main steel band upper surface, wherein, the width of this first liner steel band is less than the width of main steel band, thus forms compound main steel band;
Compound main ribbon spiral winding is formed the spiral welded steel pipe of inner wall belt first liner, outer wall belt stiffening ring, meanwhile, between stiffening ring inwall and the tube wall of steel pipe, form spiral helicine passage;
The spiral-shaped seam spiral formed between adjacent tubes is fitted the second liner, and the first liner of being adjacent respectively of the left and right sides of this second liner and welding, the first liner and the second liner cover the inwall of whole spiral welded steel pipe.
Wherein, after described spiral welded steel pipe completes, soldering and sealing is carried out to the interlayer gap formed between the main steel band at its two ends and the first liner or the second liner, ensures to form confined space between main steel band and liner.
The pore be provided with for gas between emptying described main steel band and the first liner or the second liner is lining with in described first liner or second.Can inwardly vacuumize to this pore or fill inert gas.
Anticorrosion liquid is filled in the passage between described stiffening ring inwall and tube wall.
Described first liner or the second liner are the liner steel that Special Alloy Steel, stainless steel, Wear Resisting Steel, aluminium or copper become.
Further, be cut into pieces after spiral welded steel pipe completes, the bevel for welding between adjacent two sections of steel pipes is Y type.When compound main ribbon spiral winding forms steel pipe, the welding between main steel band adopts submerged arc welding.Welding manner between second liner and the first liner, or the welding manner between main steel band and the first liner or the second liner is gas shielded arc welding.
Beneficial effect: compared with prior art, its advantage is the utility model:
(1) the utility model steel pipe inner wall establishes metal inner lining, can improve anti-corrosive properties and the wear resistance of steel pipe, avoid fluid contamination; Meanwhile, the reduced thickness of main steel band steel, reduces cost of material; Second liner covers the spiral weld that steel pipe self is formed, and decreases the impact force of internal flow butt welded seam, protection weld seam; Second liner width is narrower, can ensure that the weld seam density of liner and main steel pipe tube wall is larger.
(2) stiffening ring of the utility model outer wall of steel pipe band semi-closed shape, tube wall circumference second moment of area improves a lot than general reinforcement mode, and bearing capacity improves, and the general thickness of steel pipe of wall ratio of main steel band is greatly thinning, reduces cost of material; Meanwhile, main steel band cross sectional moment of inertia improves greatly, and volume bowlder can realize thin plate and send.
(3) the utility model can carry out soldering and sealing to the steel pipe two end part be cut into pieces, and eliminates the gap between internal lining pipe and main steel tube end part.
(4) the utility model can be lining with and arrange pore or valve in every section of pipe two ends, vacuumizes or fills inert gas, to prevent tube wall corrosion.
(5) the utility model can fill anticorrosion liquid in stiffening ring, improves the antiseptic property of stiffening ring.
(6) steel pipe bore super large of the present utility model.
(7) steel pipe of the present utility model can be used for carrying special media, such as Korrosionsmedium, the medium, high temperature media etc. higher to degree of purity requirement.
(8) when the utility model steel pipe is used as underground pipe, utilize pipeclay to share by stress effect, be that master bears pressure by stiffening ring, during super-large diameter (D>4m), soil can be buried and very deeply reach more than the 10 meters degree of depth.Meanwhile, to filling high performance concrete in stiffening ring, the second moment of area of tube wall can be increased, make stiffening ring become concrete steel pipe, improve anti-pressure ability, reduce pipe thickness.
Accompanying drawing explanation
Fig. 1 is the putting position schematic diagram of main steel band and stiffening ring steel band and liner steel band;
Fig. 2 is the structural representation that stiffening ring steel band is pressed into that cross section is the stiffening ring steel band of semi-closed shape;
Structural representation after Fig. 3 is stiffening ring steel band, liner steel band is fitted with main steel band respectively;
Fig. 4 is the three-dimensional structure schematic diagram of compound main steel band;
Fig. 5 is the structural representation that compound main steel band carries out that three rollers roll up round-formed steel pipe;
Fig. 6 is the structural representation saving docking before and after adjacent tubes;
Fig. 7 is the second liner steel band paving schematic diagram;
Fig. 8 is the structural representation that the first liner steel band and the second liner steel band all cover steel pipe inner wall;
Fig. 9 is the cross-sectional view of the utility model steel pipe;
Figure 10 is the longitudinal sectional view of the utility model steel pipe;
Figure 11 is the partial enlarged drawing of A point in Figure 10;
Figure 12 is the utility model lengths of steel pipes and intersegmental welding edges structural representation.
Embodiment:
Below in conjunction with accompanying drawing, the technical solution of the utility model is described further.
The Large-sized spiral welded pipe (hereinafter referred to as " steel pipe ") of band metal inner lining described in the utility model, body 101 outer wall of steel pipe is set and is strengthened structure (as stiffening ring 400 in the utility model), it is processed by many ordinary steel belts, uniform winding be welded on tube wall in a spiral manner, in order to improve tube wall circumference second moment of area, thinning pipe thickness, is beneficial to follow-up volume circle.Steel pipe inner wall establishes the liner of metal material, liner comprises the first liner 200 and the second liner 300, two kinds of liners all cover on steel pipe inner wall, define the liner body welded with steel pipe inner wall, corrosion resistance and the wear resistance of steel pipe can be improved, avoid being polluted by the fluid of steel pipe, simultaneously can also thinning thickness of steel pipe, in addition, liner can adopt special substance, and steel pipe main body adopts general material, so not only improves steel pipe integral performance, can also reduce costs, improve the market competitiveness of steel pipe.In order to improve the working life of steel pipe further, soldering and sealing all should be carried out, the gap between soldering and sealing steel pipe two terminal inner lining and body in the two ends of each section of steel pipe, provides the space that closed, air in isolating exterior air and gap.In addition, can be lining with in steel pipe two ends and pore and/or valve are set, for the gap between liner and tube wall being vacuumized or filling inert gas, last soldering and sealing pore.Anti-corrosion material can also be poured into, as corrosion resistant coating in stiffening ring.
Introduce the working process of steel pipe below:
First, according to the diameter of made steel pipe, the formed angle of spiral reshaper is adjusted to desired value.
Then, main steel band 100, stiffening ring steel band 401, first liner steel band 201 and the second liner steel band 301 is prepared.Main steel band 100 is eliminated rust, shot blast, stiffening ring steel band 401 and the first liner steel band 201 (quantity is by actual conditions setting) through unreeling, after leveling, the operation such as deburring, by positional alignment shown in Fig. 1.In this tubulation process, uniform three stiffening ring steel bands 401 below each main steel band 100, the distance that top arranges between two the first liner steel bands, 201, two the first liner steel bands 201 is 1-2mm.
As shown in Figure 2, stiffening ring steel band 401, through bending mechanism, bends to the stiffening ring 400 that section is semi-closed shape, in this tubulation process, stiffening ring 400 cross section is compressed to semicircle, certainly, other shape can be processed into according to actual needs, such as trapezoidal, parabola shaped etc.
As shown in Figure 3, move on stiffening ring 400, fit with main steel band 100, specifically the contact position of the two-port of stiffening ring 400 with main steel band 100 lower surface is welded.Simultaneously; first liner steel band 201 is moved down, fits with the upper surface of main steel band 100, specifically utilize gas shielded arc welding that two the first liner steel bands 201 are carried out the three-in-one with main steel band 100 and weld; wherein, the first weld seam 202 is formed between two liner steel bands 201.So obtain compound main steel band 103, as shown in Figure 4.
Compound main steel band 103 is sent into three roller rolling machine structures (see Fig. 7, comprising 1# pressure roller, 2# pressure roller and 3# pressure roller) and carry out volume circle, as shown in Figure 5.Because outer wall is provided with the stiffening ring of semi-closed shape, main steel band cross sectional moment of inertia improves greatly, and volume bowlder can realize thin plate and send.At volume bowlder, main steel band forms a section body, and weld the spirality seam 102 (seam that main steel band self is formed) formed between adjacent tubes, as shown in Figure 6,7, wherein, the position of 1# pressure roller is solder joint.And then, with 1# pressure roller for starting point, retreat about 200-300mm (the upper left roller position of Fig. 7), the second liner steel band 301 paving is covered this spirality seam 102 place, the impact force of pipe interior fluid to this seam can be reduced, protection seam.The first liner steel band 201 that second liner steel band 301 is adjacent simultaneously welds to form the second weld seam 302, and as shown in Figure 7,8, that is, the second liner steel band 301 carries out the three-in-one with the first liner 201 and main steel band 100 and welds.So make whole steel pipe inboard wall of tube body be covered completely by many spiral helicine liners (first liner 200 and the second liner 300), and liner is firmly welded on inboard wall of tube body, obtains the steel pipe of band liner.
Liner band should have certain and have the performance differing from Ordinary Steel steel, and as anticorrosion antiwear, high temperature resistant etc. performance, description of materials includes but not limited to several as follows: Special Alloy Steel, stainless steel, Wear Resisting Steel, aluminium, copper etc.First liner is generally different from the width of the second liner, wider the first liner (its width is narrower than main steel band) for paving at main steel band upper surface, spirality seam 102 place of the second slightly narrow liner paving on inwall, second liner is narrower, can ensure that the weld seam density of liner and inboard wall of tube body is larger.
As shown in Fig. 9,10, after steel pipe reaches requirement length, cut off, soldering and sealing is carried out to the interlayer gap 106 formed between the main steel band 100 in steel pipe two ends and the first liner 200 or the second liner 300, ensure to form airtight space between main steel band and liner band, be convenient to subsequent treatment, such as charge, exhaust body.At side or the top open pore 500 of body 101 inwall liner, the degree of depth of this pore 500 only should penetrate liner, and does not touch main steel band, and valve 501 (if needs) that pore 500 can be burn-on, is convenient to connect gas device.At least can establish a pore at every bar liner of pipe end, if there are 4 liners, often end can establish at least 4 pores.Utilize pore can discharge gas between main steel band and liner, prevent body corrosion, utilize this process to detect weldquality, then by pore 500 and valve 501 soldering and sealing simultaneously.
At stiffening ring otch 402 place that the steel tube end part be cut into pieces is formed, anticorrosion liquid is poured in this stiffening ring otch 402, when liquid note (can be greater than the girth of 1/3 stiffening ring) formed flushes with perfusing hole, start rotating tubular body 101, final remaining anticorrosion liquid flows out from steel pipe the other end otch, between the stiffening ring inwall of whole steel pipe like this and outer wall of steel pipe cover by anticorrosion liquid, the antiseptic property of stiffening ring inwall can be improved.When pipeline is buried, can, to filling high performance concrete 600 in stiffening ring, make stiffening ring become concrete steel pipe, improve anti-pressure ability, reduce main steel pipe wall thickness.
The welding method of the utility model steel pipe different parts is different; such as, when being connected between lengths of steel pipes with section; welding portion should be processed into Y type groove, and the welding between main steel band adopts submerged arc welding 104, and welding between liner and between liner with main steel band adopts gas shielded arc welding 105.
Model utility principle: first, spiral welded steel pipe outer wall arranges the hollow stiffening ring of semi-closed shape, first, can increase tube wall circumference moment of inertia, the general thickness of steel pipe of wall ratio of main steel band is greatly thinning, not only reduce cost of material, and the steel pipe of heavy caliber and super large caliber can be produced; The second, when main steel band steel are thinner, in volume circle process, the power of sending can make steel band Qu Rao, cannot send, and after arranging stiffening ring, steel band cross-section area and moment of inertia increase, and volume bowlder is sent and is easy to realize, and is convenient to processing.Secondly, steel pipe inner wall is provided with liner, be in order to avoid or reduce the pollution of fluid to the corrosion of steel pipe, wearing and tearing and body convection cell, simultaneously can also the thickness of thinning main steel band steel, reduce cost of material further, improve steel pipe corrosion-proof wear-resisting property.In addition, carrying out soldering and sealing to steel tube end part, is the space providing closed for vacuumizing or fill inert gas.Installing pore by being lining with in first or second, effectively can discharge the air in enclosed space, preventing the corrosion of steel duct gap, also can detect welding quality.By pouring into anti-corrosion material in stiffening ring, the antiseptic property of stiffening ring inwall can be improved.
Steel pipe of the present utility model has following purposes: water pipe or waste pipe; Conveying sandstone, dust; Urban sewage and industrial sewage; Chemical industry fluid; Underground collector pipe; High temperature media; Seawater pipeline etc.
Claims (8)
1. the Large-sized spiral welded pipe with metal inner lining, is characterized in that: comprise the body (101) rolled by main steel band (100) spiral, inboard wall of tube body is provided with the first liner (200) and the second liner (300), described first liner (200) spiral fits in the surface of main steel band (100), and the width of the first liner (200) is less than the width of main steel band (100), described second liner (300) spiral fits in spirality seam (102) place formed between adjacent tubes (101), and the first liner (200) that the left and right sides of the second liner (300) is adjacent respectively welds, first liner (200) and the second liner (300) cover whole inboard wall of tube body, be the stiffening ring (400) of semi-closed shape along tube wall spiral winding cross section, between this stiffening ring inwall and tube wall, form spiral helicine passage.
2. the Large-sized spiral welded pipe according to claim 1 with metal inner lining, is characterized in that: described first liner (200) or the second liner (300) are provided with the pore (500) for gas between emptying described main steel band (100) and the first liner (200) or the second liner (300).
3. the Large-sized spiral welded pipe according to claim 2 with metal inner lining, is characterized in that: described pore (500) welds with valve (501).
4. the Large-sized spiral welded pipe with metal inner lining according to claim 1 or 2, is characterized in that: fill anticorrosion liquid in the passage between described stiffening ring (400) inwall and body (101) outer wall.
5. the Large-sized spiral welded pipe with metal inner lining according to claim 1 or 2, is characterized in that: the welding manner between described second liner (300) and the first liner (200) is gas shielded arc welding.
6. the Large-sized spiral welded pipe with metal inner lining according to claim 1 or 2, is characterized in that: the bevel for welding between adjacent two sections of described bodys (101) is Y type.
7. the Large-sized spiral welded pipe with metal inner lining according to claim 1 or 2, is characterized in that: the liner steel that described first liner (200) or the second liner (300) are Special Alloy Steel, stainless steel, Wear Resisting Steel, aluminium or copper become.
8. the Large-sized spiral welded pipe with metal inner lining according to claim 1 or 2, it is characterized in that: when described main steel band (100) spiral rolls and forms body (101), the welding manner between main steel band (100) is submerged arc welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420833364.3U CN204420341U (en) | 2014-12-24 | 2014-12-24 | A kind of Large-sized spiral welded pipe with metal inner lining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420833364.3U CN204420341U (en) | 2014-12-24 | 2014-12-24 | A kind of Large-sized spiral welded pipe with metal inner lining |
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| CN204420341U true CN204420341U (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420833364.3U Withdrawn - After Issue CN204420341U (en) | 2014-12-24 | 2014-12-24 | A kind of Large-sized spiral welded pipe with metal inner lining |
Country Status (1)
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| CN (1) | CN204420341U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565560A (en) * | 2014-12-24 | 2015-04-29 | 南京联众建设工程技术有限公司 | Large-diameter spiral welded steel pipe with metal linings and manufacturing method thereof |
-
2014
- 2014-12-24 CN CN201420833364.3U patent/CN204420341U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565560A (en) * | 2014-12-24 | 2015-04-29 | 南京联众建设工程技术有限公司 | Large-diameter spiral welded steel pipe with metal linings and manufacturing method thereof |
| WO2016101298A1 (en) * | 2014-12-24 | 2016-06-30 | 南京联众建设工程技术有限公司 | A large-diameter metal-lined spiral welded steel pipe and manufacturing method thereof |
| US10145502B2 (en) | 2014-12-24 | 2018-12-04 | Nanjing Lianzhong Construction Engineering Technology Co., Ltd. | Large-aperture spiral welded steel pipe with metal linings and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150624 Effective date of abandoning: 20160203 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |