CN101660630A - Method for mounting large-diameter pipeline in confined space - Google Patents
Method for mounting large-diameter pipeline in confined space Download PDFInfo
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- CN101660630A CN101660630A CN200810042087A CN200810042087A CN101660630A CN 101660630 A CN101660630 A CN 101660630A CN 200810042087 A CN200810042087 A CN 200810042087A CN 200810042087 A CN200810042087 A CN 200810042087A CN 101660630 A CN101660630 A CN 101660630A
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Abstract
The invention relates to a method for mounting a large-diameter pipeline in a confined space, which comprises the following steps: 1) opening a window on one side of a target pipeline mounting space in the confined space, and communicating the target pipeline mounting space in the confined space with an external open space, wherein the size of the window is determined ensuring that section bodiesof the large-diameter pipeline can be delivered freely; 2) building a temporary platform which is built below the corresponding target pipeline mounting space, arranging a main slideway on the platform along the length direction of the target pipeline mounting space, and arranging a connecting slideway at the window, wherein the connecting slideway is connected with the main slideway to communicate with the outside; 3) sliding the section bodies of the pipeline to the main slideway through the connecting slideway and the window; and 4) sliding and connecting the section bodies of the pipelinein turn along the main slideway, wherein when the section bodies of the pipeline are butted and matched together with the section bodies of the pipeline already on the main slideway, the large-diameter pipeline is mounted in place. The method can reduce the friction force for moving the pipeline so that the large-diameter pipeline can be delivered to a designed position without damage under the condition that a large number of obstacles are all around.
Description
Technical field
The present invention relates to the pipe installation technology field, particularly a kind of large diameter pipeline method in place of in restricted clearance, installing.
Background technique
For the industrial pipeline installation in position, the simplyst in the known technology a kind ofly be: use crane with pipeline directly lifting put in place.Yet, in real operating mode, may run into the situation that can't use crane or crane the direct handling of pipeline can't be arrived assigned position because of being restricted on the space.Such as, in piping lane structure as shown in Figure 1, if change wherein A pipeline,, can't directly use crane to hang out old pipeline or hang in new pipeline because it all has obstacle to stop all around.This situation can be described as the pipeline difficult problem in place in the restricted clearance, and the pipe diameter of installation in position is bigger if desired, and then difficulty is bigger.
" Anhui building " 2007 the 3rd phases disclose " design and construction of river-crossing tunnel heavy caliber sewage conduct integral slipping ", it adopts the sliding support technology, realize the integral slipping of pipeline, solve a difficult problem of in limited tunnel, space, laying long distance, large diameter pipeline.Method is comparatively ingenious.But there is following shortcoming:
1) need overcome the frictional force that support moves, therefore need than large traction.
2) for the original situation that just has been provided with support,, then can't use this method such as situation shown in Figure 1.
3) be the situation of broken line for motion track, be difficult to use this method.
Also have directly that lifting puts in place, be restricted on because of the space can't use crane or crane can't be with pipeline direct handling inapplicable under the situation of assigned position.
Have again, utilize simple tools such as hinge, pulley, adopt artificial or machine power (such as volume machine machine) is dragged to assigned position with the pipeline traction, be applicable to the middle-size and small-size pipeline that weight is lighter, for large diameter pipeline:
1) need overcome very big frictional force, driving style is inadvisable.
2) have the outside anticorrosion as pipeline, this kind brute force drags can damage anticorrosive coat even pipeline.
Summary of the invention
The object of the present invention is to provide a kind of large diameter pipeline method in place of in restricted clearance, installing, can reduce the frictional force that pipeline moves, make large diameter pipeline in that to transport the space limited, have around especially under the situation of a lot of other obstacles to be distributed to design attitude injury-freely.
In the time of can't using crane that large diameter pipeline is installed because be restricted on the space, during such as one section existing pipeline of replacing in built on stilts piping lane, to not influence peripheral facilities again and comparatively pipeline transported under the situation of labour-saving and put in place neither damaging pipeline, need utilize special method, by special instrument.Data acquisition, to method substantially all be to use brute force to drag pipeline to make it in place, both need overcome the frictional force that drags generation, the external anti-corrosion layer of also very likely grind away simultaneously pipeline and piping lane by hitching machinery than high-power.The method that the present invention proposes can reduce the frictional force that pipeline moves, and makes large diameter pipeline in that to transport the space limited, has around especially under the situation of a lot of other obstacles to be distributed to design attitude injury-freely.
Technological scheme of the present invention is,
A kind of large diameter pipeline method in place of installing in restricted clearance, it comprises the steps:
1) open up a window, target pipeline installing space one side is opened up a window in restricted clearance, is communicated with target pipeline installing space and outside clearing in restricted clearance, and window size is as the criterion can guarantee that the large diameter pipeline segmented body is transported freely;
2) build temporary platform, temporary platform is built in corresponding target pipeline installing space below, along target pipeline installing space length direction main skid is set on platform, in addition, establish at the window place one with the be connected slideway that is connected of outside of main skid;
3) with the large diameter pipeline segmented body successively by connecting on the main skid that slideway is provided with on the platform of window slippage target pipeline installing space in the restricted clearance by outside clearing;
4) the duct segments body is along main skid slippage successively, and connects, until last section large diameter pipeline segmented body from window connect slideway enter main skid with before the duct segments body on main skid dock coincidence, piping erection so far is in place to finish.
Further, crane operation is adopted in the running of outside clearing, with the duct segments body from ground or other position be transported to window and establish one and connect on the slideway.
Again, described connection slideway, main skid adopt the channel-section steel structure, and rolling element is set in the groove, make it transport frictional force and greatly reduce, and transport required drive thereby reduce, and prevent the tube wall damage.Described rolling element can be spheroid or cylindrical body.
Further, duct segments body traction method of the present invention is divided into two kinds according to the matching degree of pipeline movement direction and conduit axis direction:
When two directions are parallel, adopt and cross hang is set at the pipe ends inwall, connect cross hang with tow rope, pulling traction rope drives the duct segments body and rolls to specific direction, thereby finishes the slippage of duct segments body;
When two directions are vertical, adopt and cross hang is set at the pipe ends inwall, be convexly equipped with attachment post respectively on four angles of cross hang, tow rope is followed closely pitch of the laps and pulled out the slippage of pulling traction rope drive duct segments body along four attachment posts.Attachment post diameter and length rise certainly in weight that is moved pipeline and displacement distance.Cross hang both can have been propped up pipeline and prevented its distortion, can be the pipeline traction gear again foothold is provided.
In addition, the present invention also is provided with the pulley that can make things convenient for the tow rope pulling.Described pulley is installed on the support of pipelines.
Beneficial effect of the present invention
Compared with prior art, the method for the invention can overcome and can't use crane and transport the narrow and small hard case in space; Simultaneously, be rolling friction by becoming sliding friction, this method can reduce labor intensity greatly, and reduces pipeline because of dragging impaired possibility.
Description of drawings
Fig. 1 is the schematic representation of restricted clearance of the present invention;
Fig. 2 is the schematic representation of one embodiment of the invention;
The schematic representation that Fig. 3 moves for pipeline of the present invention;
The schematic representation of a kind of mode that Fig. 4 moves for pipeline of the present invention (movement direction is vertical with conduit axis);
Fig. 5 is the side view of Fig. 4;
The schematic representation of the another kind of mode that Fig. 6 moves for pipeline of the present invention (movement direction is parallel with conduit axis);
Fig. 7 is the side view of Fig. 6.
Embodiment
Referring to Fig. 1, it is depicted as in the piping lane structure of a space compactness, change the pipeline A that is in core position, because other pipelines or obstacle are arranged around the pipeline A, as pipeline B, can't directly use crane handling pipeline this moment, also is difficult to use the method for prior art.
Referring to Fig. 2～Fig. 3, a kind of large diameter pipeline method in place of in restricted clearance, installing of the present invention, it comprises the steps:
At first, open up a window, target pipeline installing space 2 one sides are opened up a window 3 in restricted clearance 1, are communicated with target pipeline installing space 2 and outside clearing in restricted clearance 1, and window 3 sizes are as the criterion can guarantee that large diameter pipeline segmented body 4 is transported freely;
In the present embodiment, " window " is the provisional neutral gear that forms behind the segment pipe B that removes.With easy access for guaranteeing pipeline A, get window height H
w〉=1.2D, width W
w〉=3D, D represent pipeline A diameter;
Then, build temporary platform 5, temporary platform 5 is built in corresponding target pipeline installing space 2 belows, along target pipeline installing space 2 length directions main skid 6 is set on platform 5, in addition, establish at window 3 places one with the main skid 6 outside slideway 7 that is connected that is connected;
(0# position) lifts connection slideway 7 (1# position) to platform 5 from ground with large diameter pipeline segmented body 4, on the platform 5 of the target pipeline installing space 3 of window 3 slippages in the restricted clearance 1 (2# position) on the main skid 6 is set by outside clearing by connecting slideway 7 successively;
The present invention includes two kinds of pipeline move modes: a kind of movement direction is vertical with conduit axis, referring to Fig. 4, Fig. 5.Another kind of movement direction is parallel with conduit axis, referring to Fig. 6, Fig. 7.
Rolling element should be able to freely roll in cell body.If rolling element is a spheroid, then its diameter d equals the inside groove width W of cell body: d=W; If rolling element is a cylindrical body, length l equals the inside groove width W of cell body: l=W.
The high H of groove equals 1/2 ball diameter: H=d/2.
The rolling element diameter d is about 1: 100 with the ratio of pipe diameter D, specifically can adjust slightly according to circumstances.
For the situation of Fig. 4, pipeline movement direction shown in Figure 5 and axis normal, slideway quantity N is W
wRound behind/the D, spacing of slipway L approximates pipe diameter D.The pipe ends inwall is provided with cross hang 9, is convexly equipped with attachment post 91 respectively on four angles of cross hang 9, and tow rope 10 is also pulled out at last along four attachment post 91 pitch of the laps, and pulling traction rope 10 drives 4 slippages of duct segments bodies.
In addition, the present invention also is provided with the pulley 11 that can make things convenient for tow rope 10 pullings.Described pulley is installed on the support of pipelines.
Situation slideway quantity for Fig. 6, pipeline movement direction shown in Figure 7 and parallel axes is 2, and the angle α of both centers and the target pipeline line of centres can choose between 45 °-60 °, and promptly two slideway centreline spacing L are:,
10 1 of tow ropes (wire rope or lead chain) are connected in the cross hang 9, move along its axial direction by sheave block 11 traction pipelines 4 then.Pipeline 4 two ends wire rope or the motion path of leading chain 10 are to put while receiving, to guarantee that pipeline 4 is by set direction motion.Described pulley 11 is installed on the support of pipelines.
Claims (8)
1. one kind large diameter pipeline method in place is installed in restricted clearance, it comprises the steps:
1) open up a window, target pipeline installing space one side is opened up a window in restricted clearance, is communicated with target pipeline installing space and outside clearing in restricted clearance, and window size is as the criterion can guarantee that the large diameter pipeline segmented body is transported freely;
2) build temporary platform, temporary platform is built in corresponding target pipeline installing space below, along target pipeline installing space length direction main skid is set on platform, in addition, establish at the window place one with the be connected slideway that is connected of outside of main skid;
3) with the large diameter pipeline segmented body successively by connecting on the main skid that slideway is provided with on the platform of window slippage target pipeline installing space in the restricted clearance by outside clearing;
4) the duct segments body is along main skid slippage successively, and connects, until last section large diameter pipeline segmented body from window connect slideway enter main skid with before the duct segments body on main skid dock coincidence, piping erection so far is in place to finish.
2. the large diameter pipeline method in place of installing in restricted clearance as claimed in claim 1 is characterized in that, crane operation is adopted in outside clearing running, with the duct segments body from ground or other position be transported to window and establish one and connect on the slideway.
3. the large diameter pipeline method in place of installing in restricted clearance as claimed in claim 1 is characterized in that described connection slideway, main skid adopt the channel-section steel structure, and rolling element is set in the groove.
4. the large diameter pipeline method in place of installing in restricted clearance as claimed in claim 1 is characterized in that described rolling element is spheroid or cylindrical body.
5. the large diameter pipeline method in place of in restricted clearance, installing as claimed in claim 1, it is characterized in that, described duct segments body traction method adopts and at the pipe ends inwall cross hang is set, connect cross hang with tow rope, pulling traction rope drives the duct segments body and slides to specific direction, thereby finishes the slippage of duct segments body.
6. the large diameter pipeline method in place of in restricted clearance, installing as claimed in claim 1, it is characterized in that, described duct segments body traction method adopts and at the pipe ends inwall cross hang is set, be convexly equipped with attachment post respectively on four angles of cross hang, tow rope is followed closely pitch of the laps and pulled out pulling traction rope drive duct segments body rolling slippage along four attachment posts.
7. the large diameter pipeline method in place of installing in restricted clearance as claimed in claim 1 is characterized in that, also is provided with the pulley that can make things convenient for the tow rope pulling.
8. the large diameter pipeline method in place of installing in restricted clearance as claimed in claim 7 is characterized in that described pulley is installed on the support of pipelines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100420873A CN101660630B (en) | 2008-08-26 | 2008-08-26 | Method for mounting large-diameter pipeline in confined space |
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| CN2008100420873A CN101660630B (en) | 2008-08-26 | 2008-08-26 | Method for mounting large-diameter pipeline in confined space |
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| CN101660630A true CN101660630A (en) | 2010-03-03 |
| CN101660630B CN101660630B (en) | 2010-12-15 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806377A (en) * | 2010-04-29 | 2010-08-18 | 中国石油化工集团公司 | Construction method for installing medium and large size bluff pipeline |
| CN102155585A (en) * | 2011-04-12 | 2011-08-17 | 中国十九冶集团有限公司 | Method for laying mine slurry pipeline in long and narrow section |
| CN103438273A (en) * | 2013-09-16 | 2013-12-11 | 北京市水利规划设计研究院 | Method for installing PCCPs (prestressed concrete cylinder pipes) in deep grooves by virtue of gantry crane |
| CN104453233A (en) * | 2014-12-29 | 2015-03-25 | 中国海洋石油总公司 | Lossless pipe penetration construction process |
| CN104896194A (en) * | 2015-05-27 | 2015-09-09 | 中国五冶集团有限公司 | Installation technology of pipes and buttresses and embedded parts of pipes and buttresses in closed and narrow space |
| CN111503367A (en) * | 2020-03-16 | 2020-08-07 | 上海二十冶建设有限公司 | Method for installing truss pipeline penetrating through high-speed culvert |
| CN112429542A (en) * | 2020-11-17 | 2021-03-02 | 中冶华成(武汉)工程有限公司 | Municipal road drainage pipeline construction equipment and construction method thereof |
Family Cites Families (4)
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| CN1125935C (en) * | 2000-06-29 | 2003-10-29 | 泰安市自来水公司 | Technology for installing great-diameter prestressed reinforced concrete pipe |
| DE20115556U1 (en) * | 2001-06-18 | 2002-02-14 | Lauscher Manfred | Device for laying conduit pipes, in particular sewer pipes |
| CN1205431C (en) * | 2002-05-15 | 2005-06-08 | 上海自来水给水设备工程公司 | Mounting and construction equipment for large span large bore river crossing bridge pipe and its construction method |
| GB2422883A (en) * | 2003-12-08 | 2006-08-09 | Trenchcraft Inc | Device and method for laying and joining pipe |
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2008
- 2008-08-26 CN CN2008100420873A patent/CN101660630B/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806377A (en) * | 2010-04-29 | 2010-08-18 | 中国石油化工集团公司 | Construction method for installing medium and large size bluff pipeline |
| CN102155585A (en) * | 2011-04-12 | 2011-08-17 | 中国十九冶集团有限公司 | Method for laying mine slurry pipeline in long and narrow section |
| CN102155585B (en) * | 2011-04-12 | 2012-08-15 | 中国十九冶集团有限公司 | Method for laying mine slurry pipeline in long and narrow section |
| CN103438273A (en) * | 2013-09-16 | 2013-12-11 | 北京市水利规划设计研究院 | Method for installing PCCPs (prestressed concrete cylinder pipes) in deep grooves by virtue of gantry crane |
| CN104453233A (en) * | 2014-12-29 | 2015-03-25 | 中国海洋石油总公司 | Lossless pipe penetration construction process |
| CN104896194A (en) * | 2015-05-27 | 2015-09-09 | 中国五冶集团有限公司 | Installation technology of pipes and buttresses and embedded parts of pipes and buttresses in closed and narrow space |
| CN104896194B (en) * | 2015-05-27 | 2017-03-22 | 中国五冶集团有限公司 | Installation technology of pipes, buttresses and embedded parts in closed and narrow space |
| CN111503367A (en) * | 2020-03-16 | 2020-08-07 | 上海二十冶建设有限公司 | Method for installing truss pipeline penetrating through high-speed culvert |
| CN112429542A (en) * | 2020-11-17 | 2021-03-02 | 中冶华成(武汉)工程有限公司 | Municipal road drainage pipeline construction equipment and construction method thereof |
| CN112429542B (en) * | 2020-11-17 | 2022-02-22 | 中冶华成(武汉)工程有限公司 | Municipal road drainage pipeline construction equipment and construction method thereof |
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| Publication number | Publication date |
|---|---|
| CN101660630B (en) | 2010-12-15 |
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