CN1277101A - Technological process and equipment for lining long steel pipe with high-density polyethylene pipe (HDPE) - Google Patents
Technological process and equipment for lining long steel pipe with high-density polyethylene pipe (HDPE) Download PDFInfo
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- CN1277101A CN1277101A CN 99112265 CN99112265A CN1277101A CN 1277101 A CN1277101 A CN 1277101A CN 99112265 CN99112265 CN 99112265 CN 99112265 A CN99112265 A CN 99112265A CN 1277101 A CN1277101 A CN 1277101A
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Abstract
The present invention is technological process and equipment to line steel pipe for conveying oil, gas and sewage with closely stuck lining. The technological process includes cleaning the steel pipe, heating lining pipe, pressing the lining pipe into double-layered C-shaped one and cooling, drawing the lining pipe into the steel pipe, interference sticking of the lining pipe onto the steel pipe and other steps. The lining pipe pressing equipment used consists of support, portal-type frame, support board, regulating box, support wheels, forming wheels, etc.
Description
The present invention relates to the Processes and apparatus of the steel conduit liner of a kind of oil transportation, gas transmission and sewage, the Processes and apparatus of especially a kind of long-distance steel pipe liner high density polyethylene (HDPE) (HDPE) pipe.
At present, all there are a large amount of oil transportations, gas transmission and sewage conduct in each oil field, the whole nation, and internal corrosion is serious, to the date of retirement, if upgrade these pipelines, needs the excavation pipe trench, and not only construction costs height, and long construction period also influences above ground structure and communal facility sometimes.If repair these pipelines, technology commonly used at present is inner lining glass fiber reinforced plastic or polymer cement mortar, and all there is the shortcoming of long construction period in these two kinds of methods, and the construction quality uncontrollable factor is more.
In patent 92204613.1, narrated interspersed plastic tube method in a kind of steel pipe, but this method complex process cost is higher.In patent 93210938.1, narrated the method for interspersed bushing pipe in another steel pipe, but in this method work progress bigger energy source and power need have been arranged.
The purpose of this invention is to provide a kind of steel pipe and liner card of making and close better, and the inner lining of steel pipe technology and the equipment thereof that can increase the service life.
Technical scheme of the present invention is: this technology is to be undertaken by following each step, at first steel pipeline is cleaned, prefabricated then bushing pipe, bushing pipe is pressed into double-deck C shape by pressing the change device, traction is extremely by in the lined steel pipe then, with expander bushing pipe is expanded into pipe, conduit is installed is sent into fluid, carry out bushing pipe and closed operation by bushing pipe interference card, locator is pushed the bushing pipe port, open fabrication hole at the two ends that connecting tube connects with steel pipe, the steel pipe welding that connecting tube and liner are good is carried out plugging technology hole operation by fabrication hole to connecting tube and weld bond.
By the length setting of bushing pipe at 1000 meters--3000 meters, the external diameter of prefabricated bushing pipe is equal to or greater than by the internal diameter of bushing pipe, the temperature of bushing pipe being carried out heat treated is 60 ℃--90 ℃, bushing pipe is cooled to below 36 ℃ after being pressed into double-deck C shape, traction is extremely by bushing pipe again, fabrication hole is opened at 100-200mm place, connecting tube two ends, by fabrication hole preservative treatment is carried out in connecting tube with the polymer water cement mortar
Internal lining pipe is to bushing pipe pressurization 3--10 hour with closed operation by bushing pipe interference card, in bushing pipe, insert wiper, wiper is inserted in the downstream of bushing pipe, add fluid pressure 1-12MPa in the wiper back, upstream extremity at bushing pipe provides back pressure 0.2-2MPa, and wiper is advanced in bushing pipe, and bushing pipe and steel pipe card are closed, advance when finishing, bushing pipe is kept 50-160 hour interior depressing.Release pressure then,
Bushing pipe with closed operation by bushing pipe interference card for after sending into hot fluid bushing pipe being heated, less pressure is provided behind wiper, wiper passed bushing pipe before bushing pipe is uncolled, and the circumference of bushing pipe imposed outside radial load, with the air between extruding bushing pipe and the steel pipe, the further card of bushing pipe and steel pipe is closed, and wiper drives with cold water and passes bushing pipe simultaneously, and bushing pipe and steel pipe walls card are closed.The operation in plugging technology hole has the plug of anticorrosive coat for inserting the top by fabrication hole, and carries out soldering and sealing.
Realize the equipment that long-distance steel pipe liner high density polyethylene pipe technology is used, internal lining pipe is pressed on the base 39 that becomes device 53, being fixed with the top is the height-adjustable support 41 in spill middle part, also be fixed with the portal frame 42 that the whole one-tenth arched door configuration back side is provided with reinforcement, the total plate 44 of portal frame 42 tops and support wheel is fixed, the total plate 44 of support wheel is semicircle planar structure, can carry out up-down adjustment with respect to portal frame 42, the total plate 44 of support wheel is provided with 3 to 4 adjusting boxes 43 that become radiation shape to distribute, can carry out radiai adjustment with respect to the center of circle of the total plate 44 of support wheel, have at least more than one support wheel 4 to be installed in the top of regulating box 43 by bearing, support wheel 45 has the recessed bobbin shape of arc on the central plane, and match with the excircle of the internal lining pipe of being pressed variable cross-section, briquetting roller 3,4, the wheel edge of 5 axial section is circular arc, diameter increases gradually and is installed on the base 39 by bearing, embracing wheel 6 for two is embracing on the support 62 by bearing fixing, embracing wheel 6 Center Symmetry Plane is the recessed bobbin shape of arc, its relative distance can be regulated, its arc matches with the embrace internal lining pipe outer rim shape size of pressing, reductor 36 connects with briquetting roller 3 by freewheel clutch 37, briquetting roller 3 is installed on the same axle with sprocket wheel 38, briquetting roller 4 is by being installed in the duplex chain wheel 49 on the same axle, chain 40 connects with sprocket wheel 38, and briquetting roller 5 is by being installed in the sprocket wheel 48 on the same axle, chain 40 connects with sprocket wheel 49.
Realize the equipment that long-distance steel pipe liner high density polyethylene pipe technology is used, locator 25 inwalls are cylindrical shape, and outer wall is a zigzag.The outer wall of locator is provided with holddown groove, by screw locator 25 and steel pipe walls is fixed.
After adopting above-mentioned technology, steel conduit or the new pipeline of laying for corrosion and damage, this invention can realize long distance, pipeline is liner high density polyethylene (HDPE) (HDPE) in position, make pipeline have fluid delivery capability, and can stop the sand cutting of the pipeline of the big oil of the corrosion of pipe interior and oil field sand production rate, gas, water mixed delivery, make to prolong 20-50 in service life of pipeline.Whole technical process is not destroyed the dimensional characteristic of internal lining pipe, thus necessary dimensional characteristic when having kept its to recover.
The pipeline of replacing corrosion and damage that needn't whole section.This will effectively reduce the downtime of the cost of repairs and maintenance, thereby reduce production costs greatly.Need not excavate a large amount of earthwork, operating expenses is reduced, the time shortens, and does not influence the normal use of surface structures facility and road simultaneously.
Because high density polyethylene pipe is convenient to change, and relatively more cheap, thus can economic repairing.The multiple tube that high density polyethylene pipe penetrates after the double-deck C shape bushing pipe expansion recovery and steel pipe is ideally formed can return to the flow behavior of original steel pipe, and reduce the further wearing and tearing and the corrosion and damage of steel pipe walls, therefore, has prolonged the economic life of pipeline widely.Work progress is simple, fast, to save cost, downtime short.
Below in conjunction with accompanying drawing embodiments of the invention are elaborated.
Accompanying drawing 1 is a schematic diagram of the invention process;
Accompanying drawing 2 is the bushing pipe sectional views of pressing after change and one-level are embraced pressure through three grades
Accompanying drawing 3 is skiagraphs that bushing pipe is pressed the variable cross-section process;
Accompanying drawing 5 is cross-sectional views of embracing press mechanism;
Accompanying drawing 6 is that fine rule is pulled through the steel pipe of wanting lining with wiper;
Accompanying drawing 7 is with fine rule pull-cord to be pulled through pipe;
Accompanying drawing 8 is that the double-deck C type of high density polyethylene (HDPE) (HDPE) internal lining pipe behind the pressure variable cross-section is drawn in steel pipe;
Accompanying drawing 9 is specific purpose tool---expanders that double-deck C type internal lining pipe two ends are expanded;
Accompanying drawing 11 is to expand into the internal lining pipe two ends cylindric with expander;
Accompanying drawing 12 is that wiper is arranged in not the bushing pipe of expansion fully;
Accompanying drawing 13 is pipe linings that the side view explanation of a signal is opened according to complete expansion of the present invention;
Accompanying drawing 14 is pack into bushing pipes of locator of two ends;
Accompanying drawing 15 is two sections pipe connection schematic diagrames of lining high density polyethylene (HDPE) (HDPE);
Accompanying drawing 16 is that the elbow connects two sections pipe construction technology schematic diagrames that served as a contrast high density polyethylene (HDPE) (HDPE).
Accompanying drawing 17 is pressed the front view that becomes device for internal lining pipe.
Accompanying drawing 18 is pressed the vertical view that becomes device for internal lining pipe.
Accompanying drawing 19 is pressed the cutaway view that becomes device for internal lining pipe.
Implement at first to tackle old steel pipeline and clean completely when of the present invention, one section in general 1000-3000 rice becomes one section in 1000-3000 rice to new pipe installation, removes the sharp object of steel pipe internal-surface then, to prevent in the liner process damage to internal lining pipe.
With the internal lining pipe of internal diameter, press to become device 53 through internal lining pipe and be pressed into as shown in Figure 2 double-deck C shape, the double-deck C shape internal lining pipe during insertion steel pipe just of the presently claimed invention than the big 0.5-3mm of steel pipe.
As shown in Figure 1, high density polyethylene (HDPE) (HDPE) plastic tube is welded together, by firing equipment 54 bushing pipe 51 is heated to 50-95 ℃ then, send into liner again and press to become device 53 (equipment 53 can be dynamic also can be motorless), the cross section of bushing pipe 51 pressed enter cooling device 52 after becoming shape shown in Figure 2, (water or air are cooling medium) is cooled to 10-50 ℃, so that it is had than high-tensile.And the long period double-deck C type that keeps it to be pressed into, press in the change process at the aforementioned tube lining, the tractive force of bushing pipe is necessary, it is to provide by the hoist engine of the other end of wanting the lined steel pipe or other pulling equipment, this tractive force is in check, presses variable cross-section equipment and insertion pipeline and don't is axially having bigger stretching or generation to destroy so that bushing pipe can waltz through plastic tube.
Referring to accompanying drawing 3, accompanying drawing 4 and accompanying drawing 5, this relates to be used for continuously the preferred form that becomes double-deck C type being pressed in the plastic liner cross section.As shown in Figure 3, four folding steps to plastic pipe are arranged, three steps are to shrivel recessed tubing bottom on the central plane of symmetry gradually, and shown in Figure 4 is wherein step; The 4th step, to be that the pressure of lateral dimension is little as shown in Figure 5 promptly carried out laterally folded to the recessed tubing in bottom.Each step in four steps all relates to BENDING PROCESS, but the stretching, extension or the elongation of the wall cross-section of bushing pipe 51 have been avoided basically, shown in Fig. 4 is one of briquetting roller, it is by power drive, support to bushing pipe 51, be by can be respectively to the center adjustment and be installed in 4 groups of can adjust up and down on the support and support wheels 7,8,9,10, each group is with advancing with going out two or three adjustable support wheels.Support wheels 7,8,9,10 and be installed on the same arch door shape flat board, each group is made up of 2 or 3 support wheels, and its Center Symmetry Plane is the recessed bobbin shape of arc, and matches basically with by the excircle of pressure variable cross-section tubing.
The wheel edge of the axial section of briquetting roller 3,4,5 is a circular arc, its radius of curvature approximates to be pressed and becomes 1/4th of bushing pipe, briquetting roller 3,4,5 can be by power-actuated driving wheel, it also can be passive freewheel, if driving wheel, then require internal lining pipe is being pressed in the variable cross-section process, the linear velocity of three driving wheel outer rims equates.
Embracing wheel 11 and 12 is a pair of wheels that can carry out the relative distance adjusting according to the tubing of being processed, it on its Center Symmetry Plane the recessed bobbin shape of arc, its arc matches with the embrace plastic pipe physical dimension of pressing, the plastic pipe that becomes double-deck C shape after a pair of armful of wheel 11 and 12 pairs of pressures is forced cooling through cooling device 52, recommend to use water quench, when temperature is low, also can adopt air-cooled.
As shown in Figure 6 wiper be arranged in the steel pipe that cleans up under pressure-driven from an end motion of pipeline section to the other end, and fine rule 13 drawn in the other end from an end.As shown in Figure 7, hawser 15 is pulled through the steel pipe of wanting lining with fine rule 13.As shown in Figure 8, special-purpose drawing head 16 and firm being linked together of double-deck C shape bushing pipe, and under the pulling force of hawser 15, double-deck C shape bushing pipe 51 is drawn in the lengths of steel pipes of wanting lining.Shown in the accompanying drawing 10 is the nature that double-deck C shape bushing pipe 51 is in when not expanding in the steel pipe.For making double-deck C shape bushing pipe 51 distendings, at first with mechanical system use expander 17 as shown in Figure 9, with expansion of bushing pipe two ends and sealing, it shown in the accompanying drawing 11 bushing pipe that the bushing pipe two ends have installed expander 17, expander 17 is to be pressed in the double-deck C shape bushing pipe 51 with mechanical means, one end of bushing pipe and expander one are reinstated mechanical system and are fastened on the steel pipe walls, and the other end connects the other end that the back freely is placed on steel pipe with expander 17; In case of necessity (such as cold winter) 60-90 ℃ hot water is flowed into double-deck C shape bushing pipe from the central passage of expander 17 more or less freely so that bushing pipe recovers tubular.
The process of double-deck C shape bushing pipe 51 recovery tubular in steel pipe by the upstream extremity of lined steel pipe construction section, is pressed into expander 17 with mechanical means in the double-deck C shape bushing pipe 51 in the steel pipe as shown in Figure 11, and Pressure gauge 18 and safety valve 21 are housed in the connecting tube of expander 17; By the downstream of lined steel pipe construction section, in the steel pipe, be pressed into expander 17 with mechanical means in the double-deck C shape bushing pipe 51, Pressure gauge 18 and following stop valve 19 are housed in the connecting tube of expander 17, following stop valve 19 and compressor 20 link (though also can provide pressure) with high-pressure hydraulic pump, start compressor 20, pressure in the double-deck C shape bushing pipe 51 in the steel pipe is raised to 0.2-2MPa (according to the diameter of bushing pipe, wall thickness and temperature are determined), after keep-uping pressure 3-10 hour, it is cylindric that bushing pipe has recovered basically, but also there is a spot of air between bushing pipe and the steel pipe, fit closely in order to make bushing pipe and steel pipe, the expander 17 of downstream will be removed after the release in the bushing pipe, put into the wiper 22 of a calibration, as shown in figure 12, wiper 22 is under the promotion of pressure-air or water under high pressure, in bushing pipe from downstream end motion upstream, remaining air extrusion in bushing pipe and the steel pipe interlayer is gone out, this moment, the pressure of wiper 22 back was preceding surface pressure 5-6 times (1-12MPa), thereby the liner surface 100% and the inner surface of steel pipe are fitted.After wiper 22 arrives the other end (being upstream extremity), to be blocked by the expander 17 of upstream extremity, stay in the steel pipe, close the valve 18 and 21 in 17 connecting tubes of two ends expander this moment, the bushing pipe internal pressure was kept 50-160 hour, thereby the pipe lining is frozen on the steel pipe inwall with tubular.
Figure 13 is the steel-plastics composite pipe that shifts out expander 17 and wiper 22 after the release, and high density polyethylene (HDPE) bushing pipe 51 is in slight circumference compressive state in steel pipe.Shown in Figure 14 is the one section bushing pipe that has served as a contrast for fixing, with mechanical means locator 25 is pushed in the bushing pipe (if be necessary 500-1000mm place installation tensioner in bushing pipe earlier, again this tensioning apparatus is removed after treating locator 25 pushed), the feature of locator 25 is that its vertical profile section has zigzag, end has step and locating slot 26, with screw 27 itself and steel pipe are fixed, thus firm bushing pipe being fixed in the steel pipe can not wriggling.
The connecting process that shown in Figure 15 is between the two lining straight lengths, at first will make inside lining anti-corrosive and handle the connecting tube and the welding of two pipeline sections of (polymer cement mortar or frp lining or other anti-corrosion material), then, butt welded seam 30 inwalls are smeared anti-corrosion material 31 by fabrication hole 33, at last the top is shaped in advance in the plug 29 insertion process holes 33 of anticorrosive coat 32, the outside weldering is dead.
When using the present invention to carry out the anticorrosive construction of the reparation of old pipeline or new pipeline, running into the pipeline turning is common engineering problem, the present invention is recommended in excavation operation hole, turning, steel pipe is divided into two sections carries out the liner high density polyethylene pipe respectively from the turning, and then with its connection, its method as shown in figure 16, at first will make inside lining anti-corrosive and handle the connection bend pipe 34 and the welding of two straight lengths of (polymer cement mortar or frp lining or other anti-corrosion material), then, butt welded seam 30 inwalls are smeared anti-corrosion material 31 by fabrication hole 33, at last the top is shaped in advance in the plug 29 insertion process holes 33 of anticorrosive coat 32, the outside weldering is dead.In the reparation of old pipeline and new pipeline anticorrosion, run into threeway, Pressure gauge, valve etc., all can construct with reference to the technology that two straight lengths that the present invention recommended or elbow connect two pipeline sections.
Claims (8)
1, a kind of new technology of long-distance steel pipe liner high density polyethylene pipe, this technology is to be undertaken by following each step, at first steel pipeline is cleaned, prefabricated then internal lining pipe, it is characterized in that: press change device (53) to be pressed into double-deck C shape by internal lining pipe bushing pipe (51), traction is extremely by in the lined steel pipe then, with expander (17) bushing pipe is expanded into pipe, conduit is installed is sent into fluid, carry out bushing pipe and closed operation by bushing pipe interference card, locator (25) is pushed the bushing pipe port, open fabrication hole (33) at the two ends that connecting tube connects with steel pipe, the steel pipe welding that connecting tube and liner are good is carried out plugging technology hole operation by fabrication hole (33) to connecting tube and weld bond.
2, the new technology of long-distance steel pipe liner high density polyethylene pipe according to claim 1; It is characterized in that: by the length setting of bushing pipe at 1000 meters--3000 meters; The external diameter of prefabricated bushing pipe (51) is equal to or greater than by the internal diameter of bushing pipe; The temperature of bushing pipe being carried out heat treated is 60 ℃--90 ℃; Bushing pipe is cooled to below 36 ℃ after being pressed into double-deck C shape; Traction is extremely by bushing pipe again; Fabrication hole (33) is opened at 100-200mm place, connecting tube two ends; By fabrication hole (33) preservative treatment is carried out in connecting tube with cement mortar with polymer
3, according to the new technology of the long-distance steel pipe liner high density polyethylene pipe under the claim 1, it is characterized in that: internal lining pipe is to bushing pipe pressurization 3--10 hour with closed operation by bushing pipe interference card, in bushing pipe, insert wiper (22), wiper (22) is inserted in the downstream of bushing pipe, add fluid pressure 1-12MPa in wiper (22) back, upstream extremity at bushing pipe (51) provides back pressure 0.2-2MPa, wiper (22) is advanced in bushing pipe (51), bushing pipe (51) and steel pipe card are closed, advance when finishing, bushing pipe is kept 50-160 hour interior depressing.Release pressure then,
4, the new technology of long-distance steel pipe liner high density polyethylene pipe according to claim 1, it is characterized in that: bushing pipe (51) with closed operation by bushing pipe interference card for after sending into hot fluid bushing pipe (51) being heated, behind wiper (22), provide less pressure, wiper (22) passed bushing pipe (51) before bushing pipe is uncolled, and the circumference of bushing pipe imposed outside radial load, with the air between extruding bushing pipe and the steel pipe, the further card of bushing pipe and steel pipe is closed, wiper drives with cold water and passes bushing pipe simultaneously, and bushing pipe and steel pipe walls card are closed.
5, the new technology of long-distance steel pipe liner high density polyethylene pipe according to claim 1 is characterized in that; The operation in plugging technology hole has the plug (29) of anticorrosive coat for inserting the top by fabrication hole (33), and carries out soldering and sealing.
6, realize the equipment that the described long-distance steel pipe liner of claim 1 high density polyethylene pipe new technology is used, internal lining pipe is pressed on the base (39) that becomes device (53), being fixed with the top is spill middle part height-adjustable support (41), also be fixed with the portal frame (42) that the whole one-tenth arched door configuration back side is provided with reinforcement, portal frame (42) top and the total plate of support wheel (44) are fixing, the total plate of support wheel (44) is semicircle planar structure, can carry out up-down adjustment with respect to portal frame (42), the total plate of support wheel (44) is provided with 3 to 4 adjusting boxes (43) that become radiation shape to distribute, can carry out radiai adjustment with respect to the center of circle of the total plate of support wheel (44), have at least more than one support wheel (45) to be installed in the top of regulating box (43) by bearing, support wheel (45) has the recessed bobbin shape of arc on the central plane, and match with the excircle of the internal lining pipe of being pressed variable cross-section, briquetting roller (3), (4), the wheel edge of axial section (5) is circular arc, diameter increases successively and is installed on the base (39) by bearing, embracing wheel (6) for two is embracing on the wheel support (62) by bearing fixing, embracing wheel (6) Center Symmetry Plane is the recessed bobbin shape of arc, its relative distance can be regulated, its arc matches with the embrace internal lining pipe outer rim shape size of pressing, reductor (36) connects with briquetting roller (3) by freewheel clutch (37), briquetting roller (3) is installed on the same axle with sprocket wheel (38), briquetting roller (4) is by being installed in the duplex chain wheel (49) on the same axle, chain (40) connects with sprocket wheel (38), and briquetting roller (5) is by being installed in the sprocket wheel (48) on the same axle, chain (40) connects with sprocket wheel (49).
7, realize the equipment that the described long-distance steel pipe liner of claim 1 high density polyethylene pipe new technology is used, locator (25) inwall is a cylindrical shape, and outer wall is a zigzag.
8, the equipment of long-distance steel pipe liner high density polyethylene pipe new technology use according to claim 7, the outer wall of locator is provided with holddown groove, by screw locator (25) and steel pipe walls is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99112265 CN1277101A (en) | 1999-06-11 | 1999-06-11 | Technological process and equipment for lining long steel pipe with high-density polyethylene pipe (HDPE) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99112265 CN1277101A (en) | 1999-06-11 | 1999-06-11 | Technological process and equipment for lining long steel pipe with high-density polyethylene pipe (HDPE) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1277101A true CN1277101A (en) | 2000-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99112265 Pending CN1277101A (en) | 1999-06-11 | 1999-06-11 | Technological process and equipment for lining long steel pipe with high-density polyethylene pipe (HDPE) |
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|---|---|
| CN (1) | CN1277101A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1319732C (en) * | 2005-12-15 | 2007-06-06 | 江苏联冠科技发展有限公司 | Process for combining ultrahigh molecular weight polyethylene tubing and steel tube |
| CN103372986A (en) * | 2012-04-19 | 2013-10-30 | 韦尔斯特里姆国际有限公司 | Flexible pipe body and method of producing the flexible pipe body |
| CN103950261A (en) * | 2014-04-19 | 2014-07-30 | 湖南振辉管业有限公司 | Special system and technical process for manufacturing integrated body of main pipes and secondary pipes |
| CN103953804A (en) * | 2014-04-28 | 2014-07-30 | 高原 | Long-distance continuous lining tube and short metal tube combination device and manufacturing method thereof |
| CN104791580A (en) * | 2015-05-07 | 2015-07-22 | 山东柯林瑞尔管道工程有限公司 | Pipeline lined with anti-corrosion plastic pipe |
| CN109454153A (en) * | 2018-11-23 | 2019-03-12 | 五行科技股份有限公司 | A kind of hose pressure U device and pressure U method |
| CN109681717A (en) * | 2019-02-14 | 2019-04-26 | 河南锐迪管道技术服务有限公司 | The towed size reducing machine of HDPE pipeline rehabilitation of O-shaped undergauge module is installed |
| CN110154409A (en) * | 2019-05-29 | 2019-08-23 | 马付林 | The internal lining antisepsis method of steel pipeline |
| CN111497219A (en) * | 2020-06-16 | 2020-08-07 | 山东菲纳科技发展有限公司 | Preparation method of steel pipe elbow lining |
-
1999
- 1999-06-11 CN CN 99112265 patent/CN1277101A/en active Pending
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1319732C (en) * | 2005-12-15 | 2007-06-06 | 江苏联冠科技发展有限公司 | Process for combining ultrahigh molecular weight polyethylene tubing and steel tube |
| CN107718482B (en) * | 2012-04-19 | 2020-05-15 | 通用电气石油和天然气英国有限公司 | Flexible pipe body and method of manufacturing the same |
| CN103372986A (en) * | 2012-04-19 | 2013-10-30 | 韦尔斯特里姆国际有限公司 | Flexible pipe body and method of producing the flexible pipe body |
| US20160243742A1 (en) * | 2012-04-19 | 2016-08-25 | Ge Oil & Gas Uk Limited | Flexible pipe body and method of producing same |
| US9505026B2 (en) | 2012-04-19 | 2016-11-29 | Ge Oil & Gas Uk Limited | Flexible pipe body and method of producing same |
| US9630207B2 (en) | 2012-04-19 | 2017-04-25 | Ge Oil & Gas Uk Limited | Flexible pipe body and method of producing same |
| CN107718482A (en) * | 2012-04-19 | 2018-02-23 | 通用电气石油和天然气英国有限公司 | Flexible pipe body and its manufacture method |
| CN103372986B (en) * | 2012-04-19 | 2018-02-27 | 通用电气石油和天然气英国有限公司 | Flexible pipe body and its manufacture method |
| US9975144B2 (en) * | 2012-04-19 | 2018-05-22 | Ge Oil & Gas Uk Limited | Flexible pipe body and method of producing same |
| CN103950261A (en) * | 2014-04-19 | 2014-07-30 | 湖南振辉管业有限公司 | Special system and technical process for manufacturing integrated body of main pipes and secondary pipes |
| CN103953804A (en) * | 2014-04-28 | 2014-07-30 | 高原 | Long-distance continuous lining tube and short metal tube combination device and manufacturing method thereof |
| CN103953804B (en) * | 2014-04-28 | 2016-02-10 | 高原 | Long apart from continuous internal lining pipe and short metal tube integrated apparatus and preparation method |
| CN104791580A (en) * | 2015-05-07 | 2015-07-22 | 山东柯林瑞尔管道工程有限公司 | Pipeline lined with anti-corrosion plastic pipe |
| CN109454153A (en) * | 2018-11-23 | 2019-03-12 | 五行科技股份有限公司 | A kind of hose pressure U device and pressure U method |
| CN109681717A (en) * | 2019-02-14 | 2019-04-26 | 河南锐迪管道技术服务有限公司 | The towed size reducing machine of HDPE pipeline rehabilitation of O-shaped undergauge module is installed |
| CN110154409A (en) * | 2019-05-29 | 2019-08-23 | 马付林 | The internal lining antisepsis method of steel pipeline |
| CN110154409B (en) * | 2019-05-29 | 2022-06-28 | 马付林 | Corrosion-resistant method for lining of steel pipeline |
| CN111497219A (en) * | 2020-06-16 | 2020-08-07 | 山东菲纳科技发展有限公司 | Preparation method of steel pipe elbow lining |
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