CN113000980A - Construction process method for pipeline blanking - Google Patents
Construction process method for pipeline blanking Download PDFInfo
- Publication number
- CN113000980A CN113000980A CN202110163769.5A CN202110163769A CN113000980A CN 113000980 A CN113000980 A CN 113000980A CN 202110163769 A CN202110163769 A CN 202110163769A CN 113000980 A CN113000980 A CN 113000980A
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- Prior art keywords
- blanking
- pipeline
- pipe section
- construction process
- angle
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- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000010276 construction Methods 0.000 title claims abstract description 16
- 238000007689 inspection Methods 0.000 claims description 7
- 238000003754 machining Methods 0.000 abstract description 10
- 239000002131 composite material Substances 0.000 abstract description 5
- 238000003466 welding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K7/00—Cutting, scarfing, or desurfacing by applying flames
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K7/00—Cutting, scarfing, or desurfacing by applying flames
- B23K7/005—Machines, apparatus, or equipment specially adapted for cutting curved workpieces, e.g. tubes
- B23K7/006—Machines, apparatus, or equipment specially adapted for cutting curved workpieces, e.g. tubes for tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K7/00—Cutting, scarfing, or desurfacing by applying flames
- B23K7/10—Auxiliary devices, e.g. for guiding or supporting the torch
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
The invention discloses a construction process method for pipeline blanking, wherein a blanking pipe section is an inclined opening with an angle beta, the angle beta is less than 90 degrees, a non-straight opening is formed, the cutting angle and the cutting amount from the straight opening to a composite groove are calculated through calculating the angle, the cutting amount of the equipment to be processed is cut quickly in advance by flame cutting, and then groove machining is carried out through other equipment, so that the pipe section can be processed into various grooves meeting the project requirements conveniently, the adaptability is strong, the cutting blanking time is saved for subsequent groove processing, the cutting amount during groove processing is reduced because the preset pipe section is the inclined opening, and the cost generated by the tool bit loss during groove processing is reduced.
Description
Technical Field
The invention relates to a pipeline blanking construction process in the field of offshore oil engineering, in particular to a pipeline blanking construction process method.
Background
At present, in the field of offshore oil engineering, as the pressure requirement of offshore oil platform process pipelines is higher, the process pipelines are mostly pipelines with large pipe diameter and large wall thickness, and are limited by the pressure requirement, during the pipeline blanking work, the blanking mode is mostly straight blanking, the pipeline still needs to be subjected to groove processing after blanking, and then the pipeline welding work can be carried out.
Straight blanking has a plurality of defects, firstly, time is consumed, the cutting time of each road opening is long, and secondly, the loss of a cutter head is large, and the cutter head needs to be replaced in time; in addition, the cut pipeline still needs to be beveled before welding to meet the actual requirement, which needs to perform secondary cutting on the straight opening to cut off redundant materials, which results in more time consumption and cutter head loss.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a pipeline blanking construction process method, wherein the pipe orifice of a blanked pipe section is an oblique opening, so that the workload during groove machining of the pipe section before welding is reduced, the groove machining efficiency is improved, and the tool bit loss during groove machining is reduced.
In order to solve the technical problem, the invention provides a construction process method for pipeline blanking, which comprises the following steps:
s1: confirming data of a pipeline to be blanked;
s2: setting a blanking bevel angle beta, wherein beta is less than 90 degrees, and setting the length of a pipeline blanking pipe section;
s3: carrying out pipeline blanking according to the set bevel connection angle beta to obtain a bevel connection pipe section;
s4: and (5) performing quality inspection on the blanked pipe section.
Further, the data of the pipeline described in step S1 includes the length, the diameter and the wall thickness of the pipeline.
Further, the quality inspection of the pipe section in step S4 is: and (3) when the blanking of one pipe section is finished, checking the length and the angle of the beveled opening of the blanked pipe section, and preparing the blanking work of the next pipe section after the length and the angle of the beveled opening of the pipe section are consistent with the preset length and the angle beta of the beveled opening of the pipe section.
Further, in step S2, the pipeline blanking device is a torch cutting machine.
The invention has the technical effects that: according to the construction process method for blanking the pipeline, the blanking pipe section is an inclined opening with an angle beta, beta is less than 90 degrees and is not a straight opening, and the cutting amount during later groove machining is reduced because the pre-arranged pipe section is the inclined opening, so that the cost of tool bit loss during groove machining is reduced; the pipe section is suitable for processing the pipe section into various grooves meeting the project requirements subsequently, the adaptability is strong, the cutting and blanking time is saved for the subsequent groove processing, the pipe section is provided with the bevel opening, the time consumed by the subsequent groove processing of the pipe section is greatly reduced, and the mechanical processing efficiency of the groove is improved.
Drawings
FIG. 1 is a flow chart of a construction process of pipeline blanking of the present invention;
FIG. 2 is a schematic view of the pipeline blanking section of the present invention;
FIG. 3 is a schematic cross-sectional view of a conventional pipeline blanking;
FIG. 4 is a schematic diagram comparing the blanking cross-sectional size and the groove size of the pipeline of the present invention.
The main reference numbers in the figures illustrate:
1-pipe wall of pipeline to be blanked, 2-oblique section, 3-straight section and 4-composite groove.
Detailed Description
The present invention is further described with reference to the following drawings and specific examples so that those skilled in the art can better understand the present invention and can practice the present invention, but the examples are not intended to limit the present invention.
Fig. 1 is a flow chart of a pipeline blanking construction process method of the present invention, fig. 2 is a schematic sectional view of the pipeline blanking of the present invention, fig. 3 is a schematic sectional view of the conventional pipeline blanking, and referring to fig. 1, fig. 2 and fig. 3, in an embodiment of the pipeline blanking construction process method of the present invention, the method includes the following steps:
s1: confirming data of a pipeline to be blanked;
the data for a particular pipeline includes: length, diameter and wall thickness of the pipeline.
S2: setting a blanking bevel angle beta, wherein beta is less than 90 degrees, and setting the length of a pipeline blanking pipe section;
as shown in fig. 2, the section of the pipeline after blanking is an oblique port, and the angle of the oblique port section 2 is β, while in the conventional blanking method, the section of the pipeline obtained is a straight port, and the angle of the straight port section 3 is 90 °, as shown in fig. 3; fig. 4 is a schematic diagram comparing the blanking section size and the groove size of the pipeline of the invention, referring to fig. 4, in this embodiment, the pipeline is an offshore oil platform process pipeline, and the groove to be processed is a composite groove 4, because the pressure requirement of the offshore oil platform process pipeline is higher, the process pipeline is mostly a pipeline with large pipe diameter and large wall thickness, as shown in fig. 4, after blanking, the part of the pipe wall 1 of the pipeline to be blanked is also the part (the dotted line part in the figure) to be blanked when the composite groove 4 is processed in the later stage; the cutting equipment is a flame cutting machine.
It should be understood that: the blanking bevel angle beta is calculated according to the groove size to be processed of the pipe section in the later period, most of cutting scraps in the later groove processing are cut in advance, and the workload and tool bit loss in the later groove processing can be reduced.
S3: carrying out pipeline blanking according to the set bevel connection angle beta to obtain a bevel connection pipe section;
the pipe section is cut into the bevel opening in advance during the pipeline blanking, so that the cutting amount during later groove machining is reduced, the cost of tool bit loss during groove machining is reduced, and the groove machining efficiency is improved.
S4: and (5) performing quality inspection on the blanked pipe section.
Specifically, the quality inspection process of the pipe section comprises the following steps: and when the blanking of one pipe section is finished, checking the length of the blanked pipe section and the bevel angle beta, ensuring that the length of the pipe section and the bevel angle are consistent with the preset pipe section length and bevel angle beta, and preparing the blanking work of the next pipe section. The problems in the blanking process of the pipe section can be found in time through timely inspection, and once the problems are found, the adjustment can be carried out in time, so that the quality of the pipe section is qualified.
It should be understood that this embodiment is only one embodiment of the method, and is not limited thereto, the compound bevel 4 and the bevel section 2 in this embodiment are only one of practical cases, and the bevel angle β of the bevel section 2 may be designed according to different pipe segment bevel sizes, so that most of the chip amount is cut off in the blanking process.
The pipeline blanking construction process method is suitable for processing pipe sections into grooves meeting project requirements in the follow-up process, and mainly aims at the design of pipelines with large diameters and large wall thicknesses in the field of offshore oil engineering; the method is a method with strong adaptability, is a method for improving the machining efficiency of the composite groove of the thick-wall pipeline, and can also be applied to thin-wall pipeline blanking.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (4)
1. A construction process method for pipeline blanking is characterized by comprising the following steps:
s1: confirming data of a pipeline to be blanked;
s2: setting a blanking bevel angle beta, wherein beta is less than 90 degrees, and setting the length of a pipeline blanking pipe section;
s3: carrying out pipeline blanking according to the set bevel connection angle beta to obtain a bevel connection pipe section;
s4: and (5) performing quality inspection on the blanked pipe section.
2. The pipeline blanking construction process method according to claim 1, characterized in that: the data of the pipeline described in step S1 includes the length, diameter and wall thickness of the pipeline.
3. The pipeline blanking construction process method according to claim 1, characterized in that: the quality inspection of the pipe section in the step S4 is as follows: and (3) when the blanking of one pipe section is finished, checking the length and the angle of the beveled opening of the blanked pipe section, and preparing the blanking work of the next pipe section after the length and the angle of the beveled opening of the pipe section are consistent with the preset length and the angle beta of the beveled opening of the pipe section.
4. The pipeline blanking construction process method according to claim 1, characterized in that: in step S2, the pipeline blanking device is a torch cutter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110163769.5A CN113000980A (en) | 2021-02-05 | 2021-02-05 | Construction process method for pipeline blanking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110163769.5A CN113000980A (en) | 2021-02-05 | 2021-02-05 | Construction process method for pipeline blanking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113000980A true CN113000980A (en) | 2021-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110163769.5A Pending CN113000980A (en) | 2021-02-05 | 2021-02-05 | Construction process method for pipeline blanking |
Country Status (1)
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|---|---|
| CN (1) | CN113000980A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114713936A (en) * | 2022-05-09 | 2022-07-08 | 中国铁建重工集团股份有限公司 | Thick plate flame blanking production line and method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2241028A1 (en) * | 1972-08-21 | 1974-02-28 | Elektrostalskij Sawod Tjaschel | Welded tube deburring rig - with automatic loading, centring, cutting and unloading |
| CN101804500A (en) * | 2010-04-01 | 2010-08-18 | 中国建筑第七工程局有限公司 | Titanium tube welding process |
| CN102528238A (en) * | 2012-01-18 | 2012-07-04 | 江苏中核利柏特股份有限公司 | Manual argon-arc welding process of tungsten electrode |
| CN102528237A (en) * | 2012-01-18 | 2012-07-04 | 江苏中核利柏特股份有限公司 | Welding process for carbon steel process pipeline |
| CN205008716U (en) * | 2015-09-19 | 2016-02-03 | 纽科伦（新乡）起重机有限公司 | Pipe unloading mechanism |
| CN108581378A (en) * | 2018-04-13 | 2018-09-28 | 中船黄埔文冲船舶有限公司 | A kind of production method of hull elbow connection pipe |
| CN109014427A (en) * | 2018-09-27 | 2018-12-18 | 浙江精工钢结构集团有限公司 | A kind of vertical bar blanking groove synchronous cutting technique |
| CN109262205A (en) * | 2018-09-14 | 2019-01-25 | 哈尔滨锅炉厂有限责任公司 | Monocline roll system adapter tube manufacturing method |
-
2021
- 2021-02-05 CN CN202110163769.5A patent/CN113000980A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2241028A1 (en) * | 1972-08-21 | 1974-02-28 | Elektrostalskij Sawod Tjaschel | Welded tube deburring rig - with automatic loading, centring, cutting and unloading |
| CN101804500A (en) * | 2010-04-01 | 2010-08-18 | 中国建筑第七工程局有限公司 | Titanium tube welding process |
| CN102528238A (en) * | 2012-01-18 | 2012-07-04 | 江苏中核利柏特股份有限公司 | Manual argon-arc welding process of tungsten electrode |
| CN102528237A (en) * | 2012-01-18 | 2012-07-04 | 江苏中核利柏特股份有限公司 | Welding process for carbon steel process pipeline |
| CN205008716U (en) * | 2015-09-19 | 2016-02-03 | 纽科伦（新乡）起重机有限公司 | Pipe unloading mechanism |
| CN108581378A (en) * | 2018-04-13 | 2018-09-28 | 中船黄埔文冲船舶有限公司 | A kind of production method of hull elbow connection pipe |
| CN109262205A (en) * | 2018-09-14 | 2019-01-25 | 哈尔滨锅炉厂有限责任公司 | Monocline roll system adapter tube manufacturing method |
| CN109014427A (en) * | 2018-09-27 | 2018-12-18 | 浙江精工钢结构集团有限公司 | A kind of vertical bar blanking groove synchronous cutting technique |
Non-Patent Citations (1)
| Title |
|---|
| 杨理准等: "《公路施工手册 基本作业》", 30 April 1993, 人民交通出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114713936A (en) * | 2022-05-09 | 2022-07-08 | 中国铁建重工集团股份有限公司 | Thick plate flame blanking production line and method |
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Application publication date: 20210622 |