CN100575762C - A kind of electric melting plastic pipe and installation method thereof that is used for liner pipe branch part - Google Patents

A kind of electric melting plastic pipe and installation method thereof that is used for liner pipe branch part Download PDF

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Publication number
CN100575762C
CN100575762C CN200610044673A CN200610044673A CN100575762C CN 100575762 C CN100575762 C CN 100575762C CN 200610044673 A CN200610044673 A CN 200610044673A CN 200610044673 A CN200610044673 A CN 200610044673A CN 100575762 C CN100575762 C CN 100575762C
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China
Prior art keywords
electric
fusion
pipe
arm
liner pipe
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Expired - Fee Related
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CN200610044673A
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Chinese (zh)
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CN101086309A (en
Inventor
国跃进
王新龙
葛百强
刘晓冬
孙剑波
刘春鹏
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SHANDONG SHENGBANG KELIN RUIER PIPE ENGINEERING Co Ltd
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SHANDONG SHENGBANG KELIN RUIER PIPE ENGINEERING Co Ltd
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Priority to CN200610044673A priority Critical patent/CN100575762C/en
Publication of CN101086309A publication Critical patent/CN101086309A/en
Application granted granted Critical
Publication of CN100575762C publication Critical patent/CN100575762C/en
Expired - Fee Related legal-status Critical Current
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Abstract

A kind of in the plastic inner lining reinstatement works of pipeline, be used for the electric melting plastic pipe and the installation method thereof of liner pipe branch part.This method is the electric melting plastic pipe in main split's pipeline binding site liner special use, and uses special-purpose erection unit to be fixed, to install.Thereby will make winner, lateral inside liner realize totally-enclosed connection, and form the lateral interface, pipe branch part will be played safe and reliable interior antisepsis.

Description

A kind of electric melting plastic pipe and installation method thereof that is used for liner pipe branch part
Technical field
The present invention relates to a kind of electric melting plastic pipe and installation method thereof that is used for liner pipe branch part.This method is in the plastic inner lining reinstatement works of pipeline, at the electric melting plastic pipe of main split's pipeline binding site liner special use, and uses special-purpose erection unit to be fixed, to install.The application of this method will make winner, lateral inside liner realize totally-enclosed connection, and form the lateral interface, and pipe branch part is played safe and reliable interior antisepsis.
Background technique
Inner lining plastic tube repairing used pipeline technology pipeline rehabilitation industry at home is ripe gradually, just be widely applied on the multi-purpose old pipeline of city and industry, it has brought into play important function in the working life of improving pipeline in the utilization again of old pipeline, has good society and economic benefit.Yet, plastic tube inner liner pipe-repairing technology lead, there is weak spot in the reparation at lateral position always, do not solve the liner problem at this position well, for example independent prefabricated threeway/four-way is replaced former pipe fitting, to increase the pipeline tie point, bring the increase of difficulty of construction, the risk and cost, maybe will prop up tubular portion and not process, make this position stay potential safety hazard.Particularly municipal civilian water supply, steam line, collateral branch pipe quantity is many, and these pipelines can not whole process be carried out in reparation continuously, and the tie point of plastic inner lining pipe is corresponding increases, and has increased the possibility of leaking.Owing to the existence of these reasons, make the advantage of this technology fail to be brought into play fully.
Summary of the invention
Purpose of the present invention provides a kind of in the plastic inner lining repairing construction of pipeline with regard to being to avoid the deficiencies in the prior art part, at used electric melting plastic pipe and the installation method thereof of main split's pipeline binding site liner, the use of this electric melting plastic pipe will make winner, lateral inside liner realize totally-enclosed connection, and form the lateral interface, pipe branch part is played safe and reliable interior antisepsis.The major technique characteristics of this method are at first to design and manufacture a kind of electric melting plastic pipe that is specifically designed to the liner pipe branch part construction, using special clamping tool electric melting plastic pipe to be fixed on the branch part of liner pipe then by clamping technology, thereby make winner, lateral inside liner realize totally-enclosed connection, and form the lateral interface, pipe branch part is played safe and reliable interior antisepsis.When design electric-fusion shape of a saddle seat, the shape of its electric-fusion shape of a saddle seat (4) matches with internal lining pipe inwall to be constructed, and with the contacted convex globoidal of inner lining plastic tube on offer the groove that metal electric heating silk (6) are set, its electric heating wire then is arranged at wherein, its arm liner pipe nipple (8) is vertical and electric-fusion shape of a saddle seat (4) welding is an one, the interior circular diameter of its electric-fusion plastics flange dish (5) is to match with the external diameter of arm liner pipe nipple (8), on the inner round wall face, be embedded with metal electric heating silk (6), and by electric smelting mode and the welding mutually of arm liner pipe nipple.Connecting means for arm liner pipe nipple (8) and electric-fusion shape of a saddle seat (4) can be to connect by thermofussion welding, also can be the integral molded plastic moulding.Its plastics flange dish (5) is an one by electric heat welding then with arm liner pipe nipple (8).
Installation for the electric melting plastic pipe of liner pipe branch part, its method of construction is by using clamping tool with shape of a saddle seat (4) and the welding of person in charge's inside liner (2) when construction, again shape of a saddle seat (4) is connected with electric-fusion plastics flange dish (5) successively with arm liner pipe nipple (8), clamping tool wherein is screw (13) and pressing plate (12) formation that has the saddle type bracket (10) and the band handle of belt length screw mandrel (11) by, when construction and installation, its construction sequence is as follows:
1. the saddle type bracket (10) with belt length screw mandrel (11) withstands electric-fusion shape of a saddle seat (4) from its back side, and with the pressure between the band screw (13) of handle and pressing plate (12) adjusting electric-fusion shape of a saddle seat (4) and inner lining plastic tube (2) inwall, the electric smelting welding is carried out in energising then, thereby realizes the thermal fusion welding of electric-fusion shape of a saddle seat (4) and inner lining plastic tube (2);
2. when arm liner pipe nipple (8) and electric-fusion plastics flange dish being installed, make the inside that connects the plastic tube (2) that good arm liner pipe nipple (8) served as a contrast with electric-fusion shape of a saddle seat (4) from main pipe insert pipe branch pipe (7), and require arm liner pipe nipple (8) to stretch out the thickness of the height on pipe flange (a 9) plane greater than electric-fusion plastics flange dish (5), carrying out thermal fusion welding by electric heating method then.For the arm of different materials, its construction then is to implement by following principle:
1.. when arm (7) is steel pipe:
A. use arm liner pipe nipple (8) and electric-fusion plastics flange dish (5), use the flange connecting branch;
B. mould transition fitting with the steel of same specification and substitute arm liner pipe nipple (8) and electric-fusion plastics flange dish (5), the steel pipe fitting that the direct and steel of arm is moulded transition fitting partly welds.
2.. when arm (7) is plastic tube:
Arm liner pipe nipple (8) got final product with sweat soldering or electric smelting sleeve mode, the direct connection with the plastics arm.
Description of drawings
Fig. 1 is that the enforcement schematic representation is installed at the scene of this patent
Fig. 2 is a kind of electric melting plastic pipe schematic representation that is used for liner pipe branch part
Fig. 3 is an electric-fusion plastics flange dish schematic representation
Fig. 4 is an electric-fusion shape of a saddle seat schematic representation
Fig. 5 is the installation special tool schematic representation
The drawing of accompanying drawing is described as follows:
The plastic tube 3---power-line terminal that has served as a contrast in the 1----main pipe 2---pipeline
4---electric-fusion shape of a saddle seat 5---electric-fusion plastics flange dish 6---electric heating wire
7---pipe branch pipe 8---plastic lining pipe nipple 9---pipe branch pipe flange
The screw of 10---saddle type bracket 11---screw mandrel 12---pressing plate 13---band handle
Embodiment
Below in conjunction with drawings and Examples in detail technical characterstic of the present invention is described in detail.
During practice of construction was at the scene installed, its main construction sequence was as follows:
1, when carrying out the repair of pipeline plastic inner lining, only keep suitable arm (7) length, disconnect arm herein, mounting flange (9).Usually, propping up length of tube should lack as best one can.
2, arm (7) inwall will be done necessary cleaning, mainly is foreign material such as deburr, dirt, makes inwall level and smooth as far as possible.
3, after main pipe (1) liner finishes, utilize the flange plate (9) of arm or the passage at socket pipe place, go up perforate (also can adopt pipeline robot to carry out) with special tool at plastic lining pipeline (2) at pipe interior, the external diameter that the aperture is generally the liner pipe nipple adds 0.2~0.5 millimeter, will clean out around the perforate.
4, inner from the good plastic pipe of liner (2) with " electric melting plastic pipe of special-purpose liner pipe branch part " branch's liner pipe nipple (8) and shape of a saddle seat (4) arm (7) of inserting main pipe by tapping (Fig. 2), adjust the direction of shape of a saddle seat (4), its convex globoidal and inner lining plastic tube cambered surface are matched.Guarantee that liner pipe nipple (8) stretches out the thickness that the height that props up pipe flange (9) plane is greater than electric-fusion plastics flange dish (5).Use installation special tool (Fig. 5) to come implementation and operation.Saddle type bracket (10) with a belt length screw mandrel (11) withstands electric-fusion shape of a saddle seat (4) from its back side, adjust saddle type bracket (10) and coincide with the cambered surface of electric-fusion shape of a saddle seat (4).Screw mandrel (11) screws the screw (13) of band handle by sending in the pipe nipple outside the arm behind arm outer cover top board (12), make electric-fusion shape of a saddle seat (4) and inner lining plastic tube (2) inwall keep certain pressure.The electrode that electric smelting is met sb. at the airport inserts on the wiring terminal (3) of electric-fusion shape of a saddle seat, sets heating time, and the energising heating welds together electric-fusion shape of a saddle seat (4) and liner pipe (2).After cooling is finished in the welding of electric-fusion shape of a saddle seat, unload screw (13), pressing plate (12) and saddle type bracket (10).
5, branch's liner pipe nipple end outer wall and electric-fusion plastics flange dish (5) inner round wall face are cleaned out, again electric-fusion plastics flange dish (5) is enclosed within on the liner pipe nipple, keep fitting tightly with a pipe flange (9), the welding of electric-fusion plastics flange dish (5) is finished in energising.Cleaning exceeds the unnecessary pipe nipple of flange plate end face, and so far this electric melting plastic pipe installs.
6, change lengthening connecting bolt (having more an electric-fusion plastics flange disc thickness), just can with original arm installation in position.
By test, generally between the 35-80 millimeter, the impacting force of screw can not be excessive for the junction surface of electric-fusion shape of a saddle seat and main internal lining pipe, otherwise cause the plastics of hot melt excessive.In addition, the saddle direction is adjusted with cleaning surfaces also very important.In installation process, to note the intact of metal electric heating silk.
When arm is steel pipe, can use said method, also the steel of available same specification is moulded transition fitting and is substituted arm liner pipe nipple and electric-fusion plastics flange dish, arm directly and the steel steel pipe fitting of moulding transition fitting partly weld.When arm was plastic tube, arm liner pipe nipple can sweat soldering or electric smelting sleeve mode, directly is connected with the plastics arm, does not need electric-fusion plastics flange dish, but must consider to increase arm liner pipe nipple bearing capacity.
This method can be applied to the liner repairing construction that material is old pipelines such as iron and steel, cast iron, concrete, plastics, potter's clay, glass fibre reinforced plastics, the lining processing of newly-built pipeline, and what also can directly apply to plastic pipe offers threeway etc.
Compared with prior art, this arm electric-fusion inner liner pipe fitting of the present invention has been owing to all adopted plastic material, Improved the resistance to corrosion of pipe-repairing, to repair existing pipeline the same with liner for it, or rely on online arm Pressure-bearing and shielding, pipe fitting only plays the sealing corrosion effect. Because it is to operate in inspection shaft or valve well, In the liner repair, reduced excavation operation hole and supervisor's interface etc., made the liner reparation of existing pipeline have more complete The property. On economic benefit, the Meteorological of a sleeve part is less a lot of more than the expense of the disconnected pipe in many excavation operation holes, therefore, Reduced the expense that pipe lining is repaired.

Claims (6)

1. the electric melting plastic pipe that is used for liner pipe branch part, this pipe fitting is to use in the construction of inner lining plastic tube pipeline rehabilitation, this pipe fitting mainly is made of electric-fusion shape of a saddle seat (4), arm liner pipe nipple (8) and electric-fusion plastics flange dish (5), the shape that it is characterized in that electric-fusion shape of a saddle seat (4) is identical with plastic lining inner tube wall to be constructed, and with the contacted convex globoidal of inner lining plastic tube on offer the groove that metal electric heating silk (6) are set, electric heating wire then is arranged at wherein; Arm liner pipe nipple (8) is vertical and electric-fusion shape of a saddle seat (4) welding is an one; The interior circular diameter of electric-fusion plastics flange dish (5) is to match with the external diameter of arm liner pipe nipple (8), and on the inner round wall face of electric-fusion plastics flange dish (5), being embedded with metal electric heating silk (6), electric-fusion plastics flange dish is by electric smelting mode and the welding mutually of arm liner pipe nipple.
2. the electric melting plastic pipe that is used for liner pipe branch part according to claim 1 is characterized in that arm liner pipe nipple (8) and being connected of electric-fusion shape of a saddle seat (4) are to connect by thermofussion welding.
3. the electric melting plastic pipe that is used for liner pipe branch part according to claim 1 is characterized in that arm liner pipe nipple (8) and being connected of electric-fusion shape of a saddle seat (4) are the integral molded plastic moulding.
4. the electric melting plastic pipe that is used for liner pipe branch part according to claim 1 is characterized in that electric-fusion plastics flange dish (5) and arm liner pipe nipple (8) are one by electric heat welding.
5. installation method that is used for the electric melting plastic pipe of liner pipe branch part, this method is by using clamping tool with electric-fusion shape of a saddle seat (4) and the welding of person in charge's inner lining plastic tube (2) when construction, again electric-fusion shape of a saddle seat (4) is connected with electric-fusion plastics flange dish (5) successively with arm liner pipe nipple (8), it is characterized in that:
1. clamping tool is screw (13) and pressing plate (12) formation that has the saddle type bracket (10) and the band handle of belt length screw mandrel (11) by;
When 2. installing, saddle type bracket (10) with belt length screw mandrel (11) withstands electric-fusion shape of a saddle seat (4) from its back side, and with the pressure between the band screw (13) of handle and pressing plate (12) adjusting electric-fusion shape of a saddle seat (4) and inner lining plastic tube (2) inwall, the electric smelting welding is carried out in energising then, thereby realizes the thermal fusion welding of electric-fusion shape of a saddle seat (4) and inner lining plastic tube (2);
When 3. arm liner pipe nipple (8) and electric-fusion plastics flange dish are installed, make the inside that connects the inner lining plastic tube (2) that good arm liner pipe nipple (8) served as a contrast with electric-fusion shape of a saddle seat (4) from main pipe insert pipeline branch pipe (7), and require arm liner pipe nipple (8) to stretch out the thickness of the height on pipe flange (a 9) plane, and then carry out the thermal fusion welding of electric-fusion plastics flange dish and arm liner pipe nipple by electric heating method greater than electric-fusion plastics flange dish (5).
6. the installation method that is used for the electric melting plastic pipe of liner pipe branch part according to claim 5, it is characterized in that when arm (7) when the plastic tube: arm liner pipe nipple (8) is with sweat soldering or electric smelting sleeve mode, directly be connected, do not need electric-fusion plastics flange dish with the plastics arm.
CN200610044673A 2006-06-09 2006-06-09 A kind of electric melting plastic pipe and installation method thereof that is used for liner pipe branch part Expired - Fee Related CN100575762C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200610044673A CN100575762C (en) 2006-06-09 2006-06-09 A kind of electric melting plastic pipe and installation method thereof that is used for liner pipe branch part

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200610044673A CN100575762C (en) 2006-06-09 2006-06-09 A kind of electric melting plastic pipe and installation method thereof that is used for liner pipe branch part

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CN101086309A CN101086309A (en) 2007-12-12
CN100575762C true CN100575762C (en) 2009-12-30

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CN109630802A (en) * 2018-10-31 2019-04-16 河南中拓石油工程技术股份有限公司 A kind of sealing element and monitoring technique is sealed for pipeline branch pipe aperture after repairing
US10400936B2 (en) 2017-03-31 2019-09-03 Exxonmobil Upstream Research Company Conduit system and method of use thereof

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CN103506790B (en) * 2012-06-19 2015-09-02 中国石油化工股份有限公司 Cementing cement head positioning device for welding and using method thereof
CN103968175A (en) * 2014-04-30 2014-08-06 永高股份有限公司 Double-convolution heating wire disk for polyethylene electro-fusion saddle-shaped pipe fitting
CN105114740B (en) * 2015-09-28 2017-08-25 成都贝根管道科技有限公司 Preparation method for lining plastic Steel triplet pipe fitting
CN107940124B (en) * 2017-12-25 2024-06-18 武汉恒毅科技发展有限公司 Plastic-steel composite three-way pipe fitting and manufacturing method thereof
CN110726026A (en) * 2019-09-22 2020-01-24 靳宏杰 Plastic tee joint with shielding brim
CN111531894B (en) * 2020-05-14 2021-12-07 宝鸡天联汇通复合材料有限公司 Polyethylene pipeline welding equipment
CN112610784B (en) * 2020-11-27 2022-08-09 中建三局第一建设工程有限责任公司 Assembled plastic adapter and construction method
CN114321560B (en) * 2021-12-31 2023-07-25 福建磊鑫(集团)有限公司 Construction method for repairing drainage pipeline by short pipe lining

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10400936B2 (en) 2017-03-31 2019-09-03 Exxonmobil Upstream Research Company Conduit system and method of use thereof
CN109630802A (en) * 2018-10-31 2019-04-16 河南中拓石油工程技术股份有限公司 A kind of sealing element and monitoring technique is sealed for pipeline branch pipe aperture after repairing

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