CN103883810A - Steel wire mesh framework plastic composite pipe and construction method - Google Patents
Steel wire mesh framework plastic composite pipe and construction method Download PDFInfo
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- CN103883810A CN103883810A CN201410114438.2A CN201410114438A CN103883810A CN 103883810 A CN103883810 A CN 103883810A CN 201410114438 A CN201410114438 A CN 201410114438A CN 103883810 A CN103883810 A CN 103883810A
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- pipe
- steel wire
- wire mesh
- plastic composite
- pipe fitting
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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
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
- F16L9/147—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and plastics with or without reinforcement
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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
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/028—Laying or reclaiming pipes on land, e.g. above the ground in the ground
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention discloses a steel wire mesh framework plastic composite pipe which is mainly composed of a pipe body, a pipe wall, a pipe reinforcing framework, a pipe fitting body, a pipe fitting reinforcing framework, and a connecting flange. The pipe reinforcing framework is embedded into the middle of the pipe wall of the pipe body. The pipe fitting reinforcing framework is inlaid in the middle of the pipe wall of the pipe fitting body. The steel wire mesh framework plastic composite pipe can effectively solve the interface stripping problem of steel-HDPE, a pipe end sealing technology which is extremely strictly required in the past can become convenient and reliable, the creep resistance is good, mechanical strength is durable, rigidity is high, shock resistance is good, size stability is good, moderate flexibility is achieved, and two materials of hard steel and flexible plastics are composited evenly and reliably.
Description
Technical field
The invention belongs to composite pipe construction application field, relate in particular to a kind of steel wire mesh frame plastic composite tube and method of construction.
Background technique
At present, along with expanding economy and social progress, steel wire mesh frame plastic composite tube is a kind of patent Novel composite pipe with independent intellectual property right.This steel wire mesh frame plastic composite tube adopts through the coated high-tensile steel wires of processing existing pure PE pipe is wound around to enhancing, make the nominal pressure of tubing be easy to reach: 5MPa above (bore≤φ 200), 2MPa (bore≤φ 400), and also tube wall thickness is managed lower than pure PE.From current research situation, the research of the method for construction of steel wire mesh frame plastic composite tube in engineering is less, it is poor that the method for construction of existing steel wire mesh frame plastic composite tube exists wear-corrosion resistance, heatproof, impact resistance, rigidity, dimensional stability and creep-resistant property, the lasting low problem of mechanical strength.
Therefore, invent a kind of steel wire mesh frame plastic composite tube and method of construction and seem very necessary.
Summary of the invention
The object of the present invention is to provide a kind of steel wire mesh frame plastic composite tube and method of construction, it is poor that the method for construction that is intended to existing steel wire mesh frame plastic composite tube exists wear-corrosion resistance, heatproof, impact resistance, rigidity, dimensional stability and creep-resistant property, the lasting low problem of mechanical strength.The present invention is achieved in that
A kind of steel wire mesh frame plastic composite tube, described composite pipe mainly contains tubing body, tube wall, tubing web frame, pipe fitting body; Pipe fitting web frame and adpting flange composition, wherein, described tubing web frame is embedded in the tube wall neutral position of tubing body; Described pipe fitting web frame is embedded in the tube wall neutral position of pipe fitting body.
Described tubing web frame is specifically set to be wound around and the tubular steel silk screen of welding fabrication is made.
After described pipe fitting web frame specifically adopts the even punching of sheet metal, reel welding is made.
Steel wire mesh frame plastic composite tube provided by the invention efficiently solves the interface peel problem of steel-HDPE, makes the very strict tubing end sealer technique of historical requirement become convenient and reliable; Become comparatively easy in tube wall upper shed branch; Sealing process after tube wall upper shed is also very easy, reliable; Creep-resistant property is good, and the lasting high rigidity of mechanical strength, impact resistance are good, good stability of the dimension, have again appropriateness flexible, and the steel of tempering toughness with gentleness, to mould bi-material compound evenly reliable.
Brief description of the drawings
Fig. 1 is the method for construction flow chart of the steel wire mesh frame plastic composite tube that provides of the embodiment of the present invention.
Fig. 2 is the pipe structure schematic diagram of the steel wire mesh frame plastic composite tube that provides of the embodiment of the present invention.
Fig. 3 is the fitting structure schematic diagram of the steel wire mesh frame plastic composite tube that provides of the embodiment of the present invention.
Embodiment
A kind of steel wire mesh frame plastic composite tube, mainly by tubing wall 1, tubing body 2, tubing web frame 3, pipe fitting body 4, pipe wall 5, pipe fitting web frame 6 and adpting flange 7 form, and wherein, described tubing web frame 3 is embedded in tubing wall 1 neutral position of tubing body 2; Described pipe fitting web frame 6 is embedded in pipe wall 5 neutral positions of pipe fitting body 4; Described adpting flange 7 is arranged on the link position of tubing body 2 and pipe fitting body 4.
Further, described tubing web frame 3 is specifically set to be wound around and the tubular steel silk screen 10 of welding fabrication is made, and is conducive to improve the intensity of tubing main body 2, further improves working life.
Further, the tubular steel silk screen 10 of the latticed tubing web frame intersecting is spent in the concrete employing 45 of the tubular steel silk screen 10 of described tubing web frame 3, is conducive to improve the intensity of tubing web frame 3, further improves utilization efficiency.
Further, described pipe fitting web frame 6 is concrete adopts the welding of steel-sheet reel to make, and is conducive to improve intensity, reduces maintenance cost, further improves working life.
Further, the upper mask body of the reel 9 of described pipe fitting web frame 6 adopts the punching of sheet metal Homogeneous Circular to make, and is conducive to improve the drum strength of pipe fitting web frame 6, reduces maintenance cost, further improves working life.
The present invention is achieved in that a kind of method of construction of steel wire mesh frame plastic composite tube comprises,
S101: pipe canal digging;
S102: tubing, pipe fitting site inspection are in place;
S103: tubing, pipe fitting docking;
S104: electric fusion welding;
S105: cooling, lower pipe;
S106: pipeline is backfilled to 500mm after installing and having managed with laying is lower for the first time;
S107: the pipeline laying is carried out to segmentation intensity, tight pressure test;
S108: to the pipeline Integral sealing pressure test laying;
S109: pipeline is backfilled to terrace absolute altitude after installing and having managed with laying is lower for the second time;
S110: the acceptance of work.
A kind of less important technological scheme of steel wire mesh frame plastic composite tube structure:
Further, described tubing web frame is specifically set to be wound around and the tubular steel silk screen of welding fabrication is made, and is conducive to improve the intensity of tubing main body, further improves working life;
Further, after described pipe fitting web frame specifically adopts the even punching of sheet metal, reel welding is made, and is conducive to improve intensity, reduces maintenance cost, further improves working life.
A kind of less important technological scheme of method of construction of steel wire mesh frame plastic composite tube:
Further, at S101, on the basis of Practical Project demand, pipe trench is excavated;
Further, at S102, tubing, pipe fitting site inspection are in place, specifically comprise stringing before reply tubing check, especially end socket position checks and wants carefully, as found crackle or the repair welding immediately of damaging, or on tubing, make visible marking, repair welding again while having ready conditions; Tubing must prevent damage in lifting and putting, mustn't pull on the ground; When ditch inner lower tube, want holding tube quantum balancing, light rising put down gently, forbids to get rid of throwing.While installation at the pipe end, should dig in joint operation hole, the big or small degree of depth in hole is advisable with easy-to-operat; While connection on ditch, will ensure that butt tube is on same axis, range estimation should not have the obvious angle of cut;
Further, at S103, dock to be welded to tubing, pipe fitting;
Further, at S104, electric fusion welding, specific as follows, become pipe nipple to carry out electric smelting connection pipe cutting, for preventing that material from leaking along steel wire in pipeline, need to seal tube head steel wire.Before general sealing, the tube head steel wire of should first polishing, grinding depth ≮ 3～5mm, and answer the degree of depth consistent, level and smooth.The connecting end that electric smelting socket joint connects tubing should cut vertically.When polishing steel wire, should select grinding wheel specification according to caliber, wall thickness.The width of polishing steel wire trough should be even, the thickness of necessary guarantee internal layer rubber and complete, and the width of groove is unsuitable wide.Groove planted agent clean out.In groove, as circuitous hoop steel wire, must remove, and steel wire head is hammered in plastics.Longitudinal steel wire muscle in polishing steel wire trough, must remove thoroughly, must not have the part of connection with cell wall.Duct sealing polishing groove sealing use welding wire thickness should be even, and welding wire should be removed spot before use.Before welding, should check whether power supply contact is good, welding gun carried out to preheating and generally gear is adjusted to 3～5 grades, preheating 3～5min, when the temperature that blows out wind when welding gun is comparatively stablized, can welding.When welding, should be started by the inwall of groove, the continuous welding of turn-taking successively from inside to outside, every layer face mutually between two root wires must ensure nearly d/4 overlapping (d is gage of wire); Facing mutually beginning place of two-layer welding wire should stagger, and ensures that beginning place of lower floor is evenly capped; The welding wire of beginning place, before welding, can be whittled into oblique angle with blade, so that next lap welding silk herein can rounding off, sealing is good.After sealing, must use emery wheel that sealing part is polished flat, end face run-out must not exceed 2mm;
Further, at S105, after elder generation is cooling.When cooling, the lower pipe type of cooling can adopt nature cooling and manually cooling, ensures that joint is not subject to any external force in cooling procedure.In the time that temperature is down to normal temperature, can dismantle pipe clamp, if affect construction speed because lacking pipe clamp, can after 4 of a pipe clamp stayed mast is all loosening, unload pipe clamp, but will ensure that joint is not affected by any external force, guarantee that face of weld is not impaired in contraction process; When lower pipe, many pipelines that connect on ditch can hyposulculus after fully cooling, and as caliber is large or ditch is darker, available rope catches pipe, and pipe is lifted to the rear bottom of trench of slowly putting into.
Further, at S106, backfill immediately after pipeline installation and laying, backfill should be carried out when temperature is lower, in backfill, should not contain gravel/frozen soil and other hard thing, backfill for the first time, when tubing, should use the both sides of fine sand backfill pipeline, primary backfill is highly preferably 0.1～0.2m.
Further, at S107, the pipeline laying is carried out to segmentation intensity, tight pressure test, weld after 12 hours and carried out, pressure test purges pipeline before, and blow valve port should select that landform is higher, the place of scarcity, avoids casualties; Slowly in pipeline, inject test medium, pressure test segmentation.
Further, at S108, pipeline is carried out after segmentation pressure test, can carry out Integral sealing pressure test, specific requirement is as follows, leak test pressure is 1.25 times of design pressure, voltage stabilizing 30 minutes, Strengh testing pressure is design pressure 1.5 times, voltage stabilizing 15 minutes, in the time that temperature variation or other factors affect pressure testing accuracy, can the proper extension voltage stabilizing time; When pressure rise to test pressure 2/3 time, start line walking; After pressure testing, the water in pipeline or gas are discharged; The pipeline that flange connects is answered after pressure testing bolt fastening a time again.
Further, at S109, pipeline is installed and is laid while being backfilled to for the second time terrace absolute altitude after lower pipe, and the backfill second layer again after compacting, pushes up above 0.6m place until be backfilling into pipe, after use fine earth instead and be backfilling and compacted to terrace.In backfilling process, pipeline bottom and the space of pipe between the end must be tamped, must not backfill within the scope of 0.2m before and after pipe joint; Pipeline is before pressure testing, and the above backfill thickness in pipe top is no less than 0.5m, in case pipeline moves when pressure testing.
Further, at S110, according to the relevant requirements of the relevant requirements of " code for construction and acceptance of water supply and sewerage pipeline engineering " GB50268-97 and " steel frame-plastic (polyethylene) composite pipe " CJ/T189-2007, engineering is carried out an acceptance inspection.Meanwhile, specific requirement below be met, after melting connection, flange should be formed, and flange shape size uniformity, pore-free, bubbling and crack; Joint has along the level and smooth symmetrical flanging of tube coupling circumference, and the degree of depth of flanging lowest part is not less than tube coupling outer surface; Tube wall in-flanges should be evened out; Docking alignment tolerance is not more than 10% of tube wall thickness, and is not more than 3mm.
The method of construction of steel wire mesh frame plastic composite tube provided by the invention efficiently solves the interface peel problem of steel-HDPE, makes the very strict tubing end sealer technique of historical requirement become convenient and reliable; Become comparatively easy in tube wall upper shed branch; Sealing process after tube wall upper shed is also very easy, reliable; Creep-resistant property is good, and the lasting high rigidity of mechanical strength, impact resistance are good, good stability of the dimension, have again appropriateness flexible, and the steel of tempering toughness with gentleness, to mould bi-material compound evenly reliable.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technological scheme of the present invention, those skilled in the art do not need to pay various amendments that performing creative labour can make or distortion still within protection scope of the present invention.
Claims (3)
1. a steel wire mesh frame plastic composite tube, is characterized in that, described composite pipe mainly contains tubing body, tube wall, tubing web frame, pipe fitting body; Pipe fitting web frame and adpting flange composition, wherein, described tubing web frame is embedded in the tube wall neutral position of tubing body; Described pipe fitting web frame is embedded in the tube wall neutral position of pipe fitting body.
2. steel wire mesh frame plastic composite tube according to claim 1, is characterized in that, described tubing web frame is specifically set to be wound around and the tubular steel silk screen of welding fabrication is made.
3. steel wire mesh frame plastic composite tube according to claim 1, is characterized in that, after described pipe fitting web frame specifically adopts the even punching of sheet metal, reel welding is made.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410114438.2A CN103883810B (en) | 2014-03-26 | 2014-03-26 | A kind of steel wire mesh frame plastic composite tube and construction method |
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| CN201410114438.2A CN103883810B (en) | 2014-03-26 | 2014-03-26 | A kind of steel wire mesh frame plastic composite tube and construction method |
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| CN103883810A true CN103883810A (en) | 2014-06-25 |
| CN103883810B CN103883810B (en) | 2016-07-06 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106442035A (en) * | 2016-05-18 | 2017-02-22 | 中国能源建设集团甘肃省电力设计院有限公司 | Production apparatus and production method for concrete-frozen soil contact surface direct shear test sample |
| CN115217133A (en) * | 2022-07-29 | 2022-10-21 | 上海宝冶集团有限公司 | Construction process of foundation pit drainage system in coastal region |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106442035A (en) * | 2016-05-18 | 2017-02-22 | 中国能源建设集团甘肃省电力设计院有限公司 | Production apparatus and production method for concrete-frozen soil contact surface direct shear test sample |
| CN115217133A (en) * | 2022-07-29 | 2022-10-21 | 上海宝冶集团有限公司 | Construction process of foundation pit drainage system in coastal region |
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| CN103883810B (en) | 2016-07-06 |
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Inventor after: Liu Xiaoxia Inventor after: Zhao Dong Inventor after: Cui Bo Inventor after: Zhao Gengen Inventor after: Wang Guozhen Inventor after: Xu Yunling Inventor after: Qiao Hong Inventor before: Zhao Dong Inventor before: Cui Bo Inventor before: Zhao Gengen Inventor before: Wang Guozhen Inventor before: Wu Shuguang Inventor before: Xu Jianguo Inventor before: Liu Hui |
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