CN109465599B - Manufacturing and using method of mop head - Google Patents
Manufacturing and using method of mop head Download PDFInfo
- Publication number
- CN109465599B CN109465599B CN201811178524.4A CN201811178524A CN109465599B CN 109465599 B CN109465599 B CN 109465599B CN 201811178524 A CN201811178524 A CN 201811178524A CN 109465599 B CN109465599 B CN 109465599B
- Authority
- CN
- China
- Prior art keywords
- arc plate
- annular
- dragging
- pipeline
- head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 230000001681 protective effect Effects 0.000 claims abstract description 29
- 230000007704 transition Effects 0.000 claims abstract description 27
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 19
- 238000003466 welding Methods 0.000 claims description 18
- 239000002002 slurry Substances 0.000 claims description 8
- 238000005498 polishing Methods 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 239000002893 slag Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000037303 wrinkles Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000004321 preservation Methods 0.000 claims description 2
- 238000005452 bending Methods 0.000 claims 1
- 238000005520 cutting process Methods 0.000 claims 1
- 239000012774 insulation material Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000011810 insulating material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/046—Directional drilling horizontal drilling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a method for manufacturing a back dragging head, which comprises the following steps: connecting the annular protective sleeve with the flaring part of the transition arc plate; manufacturing an annular arc plate, and connecting the flaring opening of the annular arc plate with the closing opening of the transition arc plate; a pull lug is connected at the closing opening of the annular arc plate, a connecting hole is formed in the pull lug, and a U-shaped ring is installed at the connecting hole; and the inner walls of the annular protective sleeve, the transition arc plate and the annular arc plate are connected with reinforcing rib plates, and the top ends of the reinforcing rib plates are connected to the pull lugs. The invention also discloses a using method of the back dragging head. The invention effectively solves the difficult problem that the long-distance and large-diameter pipeline passes through the hard geological layer and is dragged back.
Description
Technical Field
The invention relates to a horizontal directional drilling and crossing construction technology, in particular to a manufacturing and using method of a back dragging head.
Background
With the common application of horizontal directional drilling and crossing construction technology, the back dragging of the pipeline is one of the key processes in the crossing construction process, and the smoothness of the back dragging of the pipeline influences the quality of the project, even the success or failure of the project.
When construction is carried out when a large river is crossed, the friction resistance between the back-dragging pipeline and the guide hole is large due to long crossing distance, large crossing pipe diameter and hard geological layer, the back-dragging force of the corresponding pipeline is also large, and the damage probability of the heat-insulating layer in the back-dragging process is also large, so that the friction resistance caused by various factors is reduced, the key of back-dragging of the pipeline is realized, the manufacturing and the use of the back-dragging head are one of the factors for reducing the friction resistance, and therefore, how to manufacture the reasonable back-dragging head is very important.
Disclosure of Invention
The invention aims to provide a method for manufacturing and using a back dragging head, which effectively solves the problem that long-distance and large-diameter pipelines penetrate through hard geological layers to back drag.
The technical scheme is as follows:
a manufacturing method of a mop head comprises the following steps:
connecting the annular protective sleeve with the flaring part of the transition arc plate;
manufacturing an annular arc plate, and connecting the flaring opening of the annular arc plate with the closing opening of the transition arc plate;
a closing opening of the annular arc plate is connected with a pull lug, the pull lug is provided with a connecting hole, and a U-shaped ring is arranged at the connecting hole;
and the inner walls of the annular protective sleeve, the transition arc plate and the annular arc plate are connected with reinforcing rib plates, and the top ends of the reinforcing rib plates are connected to the pull lugs.
Further: the transition arc plate is of a frustum annular structure, and the horizontal included angle of the outer wall of the transition arc plate is 0-30 degrees.
Further: the annular arc plate is formed by splicing the side walls after welding through a plurality of trapezoidal plates.
Further: a trapezoidal gap is cut at intervals by adopting a section of back-dragging pipeline, materials in the trapezoidal gap are removed, then a trapezoidal plate between the trapezoidal gaps is bent after annular heating is adopted, and an annular arc plate is formed after the gap is welded.
Further: the annular arc plate is connected to the trapezoidal opening of the pull lug, and a plug is welded at the closing opening of the annular arc plate.
Further: the top end of each reinforcing rib plate is connected to the inner wall of the trapezoidal opening of the pull lug, the rear end of each reinforcing rib plate is located on the inner side of the annular protective sleeve, and the 2 reinforcing rib plates are arranged in a cross shape.
Further: and polishing the welding position of the manufactured and molded back dragging head by using a polishing machine to ensure that the back dragging head is smooth in transition, and has no depression, no wrinkles and no welding slag.
A method of using a tow back head, comprising:
stripping the heat insulation layer at the end part of the back-dragging pipeline, inserting the end part of the back-dragging pipeline into an annular protective sleeve, and then welding the back-dragging pipeline and the annular protective sleeve together;
connecting a U-shaped ring arranged at a connecting hole on a pulling lug of the back dragging head with a universal joint at the rear end of the reamer;
the drill rod pulls the reamer to move forward in the rotary hole, the water hole of the reamer sprays slurry for lubrication, the annular arc plate and the transition arc plate of the back dragging head sequentially push the slurry, and the annular protective sleeve drives the back dragging pipeline to move forward until the back dragging pipeline drills out the rotary hole.
Preferably: and filling a gap between the annular protective sleeve and the heat-insulating layer by adopting a polyurethane heat-insulating material.
Preferably: after the pre-reaming process is finished, the hole is clean, and the pipeline is pulled back; the annular protective sheath wraps the end of the back dragging pipeline, and the heat preservation layer can be prevented from being damaged in the advancing process.
The invention has the technical effects that:
the invention effectively solves the difficult problem that the long-distance and large-pipe-diameter back-dragging pipeline passes through the hard geological stratum to back-drag. The back dragging resistance of the back dragging pipeline can be reduced, the back dragging success rate of the back dragging pipeline is improved, the heat insulation layer is effectively protected, the engineering quality is practically ensured, and the construction benefit is remarkably improved.
By adopting the invention, when the pipeline is dragged back, the heat-insulating layer is not easy to be damaged, and the smooth dragging back of the pipeline is ensured. The pipeline end anticorrosive coating is prevented from being damaged due to the friction resistance, the annular protective sleeve and the pipeline heat-insulating layer are filled with the polyurethane heat-insulating material, and the phenomenon that the anticorrosive heat-insulating layer is damaged due to the extrusion effect when the pipeline drags back is effectively avoided.
The back dragging resistance is small when the pipeline back dragging, the steel plate corners of the pulling lugs are arc-shaped, the friction resistance between the pulling lugs and the guide hole wall is reduced, and the steel plate is 30mm thick, so that the steel plate has high strength and is enough to bear the tensile force and stress generated when the pipeline back dragging. The stress surfaces of the annular arc plate and the transition arc plate are smooth and streamline, and the flow resistance of slurry and the friction resistance between the slurry and the wall of the guide hole are reduced.
Drawings
FIG. 1 is a schematic view of the back tow head of the present invention;
FIG. 2 is a schematic longitudinal sectional view of the drag head of the present invention;
FIG. 3 isbase:Sub>A cross-sectional view taken along the line A-A in the present invention;
fig. 4 is a state diagram of the back dragging head in the invention.
Detailed Description
The following description sufficiently illustrates specific embodiments of the invention to enable those skilled in the art to practice and reproduce it.
As shown in fig. 1, it is a schematic structural view of the back dragging head of the present invention; FIG. 2 is a schematic longitudinal sectional view of the drag head of the present invention; FIG. 3 isbase:Sub>A sectional view taken along the line A-A in the present invention.
The manufacturing method of the back dragging head specifically comprises the following steps:
step 1: connecting (welding) the annular protective sleeve 1 with the flaring part of the transition arc plate 2;
the material of annular protective sheath 1 is straight seam spiral welded pipe, and annular protective sheath 1's external diameter is 820mm, and the wall thickness is 20mm, and length is 300mm.
The transition arc plate 2 is a frustum-shaped annular structure, the thickness of the transition arc plate is 20mm, and the smoothness of the transition arc plate 2 is ensured in the welding process. The horizontal included angle of the outer wall of the transition arc plate 2 is 0-30 degrees.
Step 2: manufacturing an annular arc plate 3, and connecting (welding) the flaring opening of the annular arc plate 3 with the closing opening of the transition arc plate 2;
the annular arc plate 3 is formed by splicing the side walls after welding through a plurality of trapezoidal plates. Also can adopt the gas welding, drag pipeline every 100mm with one section back and cut out trapezoidal gap, then adopt ring flame to heat, remove material in the trapezoidal gap when reaching the uniform temperature, then bend the trapezoidal plate between the trapezoidal gap and form annular arc board 3, annular arc board 3's length is 400mm, and thickness is 20mm. The horizontal included angle of the outer wall of the annular arc plate 3 is 30-60 degrees.
And 3, step 3: a closing opening of the annular arc plate 3 is connected with a pull lug 4, the pull lug 4 is provided with a connecting hole 41, and a U-shaped ring is arranged at the connecting hole 41;
the length of the pull lug 4 is 800mm, the width of the pull lug 4 is 711mm, the thickness of the steel plate is 30mm, and the trapezoidal opening of the pull lug 4 is embedded along the central line of the annular arc plate 3 and is connected by welding. The diameter of the connection hole 41 is 100mm.
And 4, step 4: and the inner walls of the annular protective sleeve 1, the transition arc plate 2 and the annular arc plate 3 are connected with reinforcing rib plates 6, and the top ends of the reinforcing rib plates 6 are connected to the pull lugs 4.
The top end of each reinforcing rib plate 6 is connected to the inner wall of the trapezoidal opening of the pull lug 4, the rear end of each reinforcing rib plate 6 is located on the inner side of the annular protective sleeve 1, and the 2 reinforcing rib plates 6 are arranged in a crisscross mode. A choke plug 5 is welded at the closing opening of the annular arc plate 3, and the choke plug 5 is respectively connected with the annular arc plate 3 and the reinforcing rib plate 6. The width of the reinforcing rib plate 6 is 710mm, and the thickness is 20mm.
And 5: and (6) finishing integrally.
And polishing the welding position of the manufactured and molded back dragging head by using a polishing machine to ensure that the back dragging head is smooth in transition, and has no recess, no wrinkle and no welding slag.
As shown in fig. 4, it is a state diagram of the back drag head of the present invention.
The application method of the back dragging head is suitable for the application of long-distance and large-diameter back dragging in a hard geological layer through traversing, and specifically comprises the following steps:
step 1: stripping the heat insulation layer at the end part of the back dragging pipeline 7, inserting the end part of the back dragging pipeline 7 into the annular protective sleeve 1, and then welding the back dragging pipeline 7 and the annular protective sleeve 1 together;
and filling a gap between the annular protective sleeve and the heat-insulating layer by adopting a polyurethane heat-insulating material.
Step 2: connecting a U-shaped ring arranged at a connecting hole 41 on a pulling lug 4 of the back dragging head with a universal joint at the rear end of the reamer;
and after the pre-reaming process is finished, the hole is clean, and the pipeline is pulled back.
And step 3: the drill rod pulls the reamer to move forward in the rotary hole, the water hole of the reamer sprays slurry for lubrication, the annular arc plate 3 and the transition arc plate 2 of the back dragging head sequentially push the slurry, and the back dragging resistance is reduced; the annular protective sleeve 1 drives the back dragging pipeline 7 to advance until the back dragging pipeline 7 drills a rotary hole.
The end part of the back dragging pipeline is wrapped by the annular protective sleeve 1, and the insulating layer can be prevented from being damaged in the advancing process.
It should be understood that the above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention, and the present invention should be covered thereby. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (8)
1. A method for manufacturing a back dragging head is characterized by comprising the following steps:
connecting the annular protective sleeve with the flaring part of the transition arc plate;
manufacturing an annular arc plate, and connecting the flaring opening of the annular arc plate with the closing opening of the transition arc plate; cutting trapezoidal gaps at intervals by adopting a section of back-dragging pipeline, removing materials in the trapezoidal gaps, then bending trapezoidal plates between the trapezoidal gaps after annular heating, and welding the gaps to form annular arc plates;
a pull lug is connected at the closing opening of the annular arc plate, a connecting hole is formed in the pull lug, and a U-shaped ring is installed at the connecting hole;
and the inner walls of the annular protective sleeve, the transition arc plate and the annular arc plate are connected with reinforcing rib plates, and the top ends of the reinforcing rib plates are connected to the pull lugs.
2. The method for manufacturing the back dragging head according to claim 1, wherein: the transition arc plate is of a frustum annular structure, and the horizontal included angle of the outer wall of the transition arc plate is 0-30 degrees.
3. The method for manufacturing the mop head as claimed in claim 1, wherein the method comprises the following steps: the annular arc plate is formed by splicing the side walls after welding through a plurality of trapezoidal plates.
4. The method for manufacturing the back dragging head according to claim 1, wherein: the annular arc plate is connected to the trapezoidal opening of the pull lug, and a plug is welded at the closing opening of the annular arc plate.
5. The method for manufacturing the mop head as claimed in claim 1, wherein the method comprises the following steps: the top ends of the reinforcing rib plates are connected to the inner wall of the trapezoidal opening of the pull lug, the rear ends of the reinforcing rib plates are located on the inner side of the annular protective sleeve, and the 2 reinforcing rib plates are arranged in a crisscross mode.
6. The method for manufacturing the mop head as claimed in claim 1, wherein the method comprises the following steps: and polishing the welding position of the manufactured and molded back dragging head by using a polishing machine to ensure that the back dragging head is smooth in transition, and has no recess, no wrinkle and no welding slag.
7. Use of a backhead according to any of claims 1 to 6, comprising:
stripping the heat insulation layer at the end part of the back-dragging pipeline, inserting the end part of the back-dragging pipeline into an annular protective sleeve, filling a gap between the annular protective sleeve and the heat insulation layer by adopting a polyurethane heat insulation material, and then welding the back-dragging pipeline and the annular protective sleeve together;
connecting a U-shaped ring arranged at a connecting hole on a pulling lug of the back dragging head with a universal joint at the rear end of the reamer;
the drill rod pulls the reamer to advance in the rotary hole, slurry is sprayed out of a water hole of the reamer to lubricate, the annular arc plate and the transition arc plate of the back dragging head sequentially push the slurry, and the annular protective sleeve drives the back dragging pipeline to advance until the back dragging pipeline drills out the rotary hole.
8. The method for using the backhoe head as recited in claim 7, characterized in that: after the pre-reaming process is finished, the hole is clean, and the pipeline is pulled back; the annular protective sheath wraps the end of the back dragging pipeline, and the heat preservation layer can be prevented from being damaged in the advancing process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811178524.4A CN109465599B (en) | 2018-10-10 | 2018-10-10 | Manufacturing and using method of mop head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811178524.4A CN109465599B (en) | 2018-10-10 | 2018-10-10 | Manufacturing and using method of mop head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109465599A CN109465599A (en) | 2019-03-15 |
| CN109465599B true CN109465599B (en) | 2023-01-06 |
Family
ID=65664881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811178524.4A Active CN109465599B (en) | 2018-10-10 | 2018-10-10 | Manufacturing and using method of mop head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109465599B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102147033A (en) * | 2010-02-09 | 2011-08-10 | 中国机械工业建设总公司 | Non-excavation directional traversing construction method for thermal power pipeline |
| CN102953683A (en) * | 2012-11-27 | 2013-03-06 | 福建省泷澄建设集团有限公司 | Pipe pulling construction method through horizontal directional drilling |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101158270B (en) * | 2007-11-19 | 2012-06-27 | 上海煤气第二管线工程有限公司 | Prime hole reverse pushing construction method in horizontal orienting drilling and prime hole reverse pushing device |
| CN201764193U (en) * | 2010-07-19 | 2011-03-16 | 西安建筑科技大学 | Two-cylinder expansion drawing type large-tonnage hydraulic pipe fracturer |
| CN102505918A (en) * | 2011-11-09 | 2012-06-20 | 西南石油大学 | Rotary dragging reaming device |
| CN204062149U (en) * | 2014-06-19 | 2014-12-31 | 陕西中科非开挖技术股份有限公司 | A kind of tube orientation drills more uses back bracket |
| US10125782B2 (en) * | 2014-12-17 | 2018-11-13 | Envaerospace Inc. | Conditioning method of gas turbine engine components for increasing fuel efficiency |
| CN205532291U (en) * | 2016-03-29 | 2016-08-31 | 辽河石油勘探局 | Reamer |
| CN108071341A (en) * | 2017-12-13 | 2018-05-25 | 中国二冶集团有限公司 | Long range directional traversing construction method |
| CN108412424B (en) * | 2018-03-30 | 2023-09-29 | 中国水利水电第六工程局有限公司 | Tool for preventing drill rod from rebounding in directional drilling and dragging construction and application method thereof |
-
2018
- 2018-10-10 CN CN201811178524.4A patent/CN109465599B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102147033A (en) * | 2010-02-09 | 2011-08-10 | 中国机械工业建设总公司 | Non-excavation directional traversing construction method for thermal power pipeline |
| CN102953683A (en) * | 2012-11-27 | 2013-03-06 | 福建省泷澄建设集团有限公司 | Pipe pulling construction method through horizontal directional drilling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109465599A (en) | 2019-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2392390C2 (en) | Trenchless pipe driving method | |
| CN103090125B (en) | Composite flexible pipe anti-compression armor layer | |
| US7698974B2 (en) | Method and device for pipe splitting | |
| CN104533345A (en) | Abrasion-resistance and anti-corrosion wrapped heat insulation oil pipe | |
| JP5633995B2 (en) | Pipe connection of drill stem with internal reinforcement ring | |
| CN109465599B (en) | Manufacturing and using method of mop head | |
| CA2985172A1 (en) | Joining lined pipe sections | |
| CN103470913B (en) | The linkage structure of metglass Steel Lining rubber and plastic submerged pipeline and making connecting means | |
| CN201688028U (en) | Buried pipeline rolling heat-insulation bracket | |
| CN203477647U (en) | Composite hose F-shaped section crush resistance armor layer | |
| CN111911743A (en) | Pipeline lining soft and hard pipe field interface repairing structure | |
| CN209228306U (en) | It returns and tows the head | |
| CN211738286U (en) | Double-layer tensile PE pipe assembly | |
| CN108916534A (en) | Hose interts buried pipeline anti-corrosion reinforcing device and buried pipeline restorative procedure | |
| CN209855711U (en) | Reamer and construction device thereof | |
| RU187923U9 (en) | PIPE FOR LAYING CABLE LINE WITH PROTECTION OF CABLE SHELL AGAINST MECHANICAL DAMAGE AT END PARTS | |
| CN216077060U (en) | Hole cleaner device used after drilling of non-excavation underground pipeline | |
| CN1243192C (en) | Non-digging and integral repairing method for underground pipeline | |
| CN213040014U (en) | Rotary bearing-inserting type pipeline joint | |
| CN218449281U (en) | Anti-shaking MPP power pipe | |
| CN211449915U (en) | Heating power pipeline | |
| JP2011111829A (en) | Jacking method and underground conduit | |
| CN218669216U (en) | Auxiliary protection device for directional drilling guide hole | |
| JP2012241727A (en) | Method of renewal of existing pipe | |
| RU2217643C2 (en) | Pipeline |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |