CN109852786B - Oil gas pipeline welded post-weld processing apparatus - Google Patents
Oil gas pipeline welded post-weld processing apparatus Download PDFInfo
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- CN109852786B CN109852786B CN201910153215.XA CN201910153215A CN109852786B CN 109852786 B CN109852786 B CN 109852786B CN 201910153215 A CN201910153215 A CN 201910153215A CN 109852786 B CN109852786 B CN 109852786B
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Abstract
The invention discloses a post-welding treatment device for welding an oil-gas pipeline, which is not used independently, is formed by simultaneously using a plurality of devices, is directly sleeved at the welding seam of the pipeline and at two sides of the welding seam, and is matched with mechanical vibration formed by knocking two sides of the pipeline through the force of directly knocking the welding seam to jointly act on the welding seam so as to weaken the internal stress in the welding seam, the device structurally comprises a transmission mechanism, a partition plate and a vibration part, wherein the transmission mechanism and the vibration part are respectively positioned at two sides of the partition plate and are fastened through connecting bolts, a rotary block in the vibration part is contacted with the pipeline and rotates at a high speed along with the high-speed rotation of the transmission mechanism to knock the pipeline continuously to form mechanical vibration on the pipeline, the transmission mechanism is mainly formed by meshing gears with different reference circle diameters, the driving gear connected with a power device moves to drive the other gears to rotate, and simultaneously starts to work, and the, therefore, the rotating speed is different every minute, and the resonance is avoided.
Description
Technical Field
The invention belongs to the technical field of pipeline welding equipment, and particularly relates to a post-welding treatment device for oil-gas pipeline welding.
Background
Because the welding is carried out at high temperature, when the metal is reduced from high temperature, the structures of a welding joint and a heat affected zone are changed, so that larger thermal stress is easily generated, residual stress caused by too high cooling speed is easily generated at the welding joint, and the use of a workpiece is influenced by untimely treatment; the post-welding treatment method adopted in the prior art is mainly based on three aspects, one is tempering, the workpiece is reheated until pearlite in the workpiece is converted into austenite, and crystal lattices are readjusted, so that residual stress is eliminated, secondly, heat preservation is carried out after welding is finished, so that thermal stress caused by severe temperature reduction is avoided, and thirdly, a welding joint is processed through shot blasting or sand blasting, and the impact force of the shot blasting can enable the workpiece to generate slight plastic deformation, so that internal stress is counteracted.
After the oil and gas pipeline is used for a period of time, the inner wall of the pipeline is inevitably corroded to be thinned and even leaked, but the pipeline cannot be completely replaced, the damaged part is usually welded, the pipeline is repaired outdoors, large-scale equipment such as a tempering furnace cannot be carried, so that the defects of a welding joint are relatively more, and in addition, if the pipeline is welded by an in-service welding method, heat is taken away by fluid flowing in the pipeline, so that the method for reducing the internal stress through heating is very difficult, and even the energy consumption is very high.
The 9 th month publication in 2014 of welding journal of china journal discloses that mechanical vibration obviously improves the structure of a high-strength steel welding joint, while the equipment for generating mechanical vibration on the market is a vibration exciter, only one part of the vibration exciter can be processed at a time, the outer wall of a pipeline is bent, and the vibration exciter is inconvenient to use and time-consuming.
Disclosure of Invention
The invention aims to provide a post-welding treatment device for welding an oil-gas pipeline, which has the advantages of small occupied area, convenience in installation and use and low energy consumption.
In order to achieve the purpose, the invention adopts the following technical scheme:
a post-welding treatment device for welding an oil-gas pipeline comprises a transmission mechanism, a partition plate and a vibration part, wherein the transmission mechanism comprises a driving gear and a driven gear, the driving gear is connected with a power device, and the driven gears are fixed on the partition plate and are meshed with each other; the baffle is a circular ring with the inner diameter larger than the outer diameter of the pipeline, a transmission mechanism and a vibration part are respectively arranged on two sides of the baffle, a plurality of through holes are formed in the baffle, and the driven gear is connected with the vibration part through connecting bolts penetrating through the through holes; the vibration part is composed of a plurality of rotary blocks connected with the driven gear, each rotary block comprises a fixing part, a knocking block and a reset mechanism, the fixing part is fixed with the driven gear through a connecting bolt, an adjusting groove is formed in the fixing part, the adjusting groove is a through groove, the connecting bolt penetrates through the adjusting groove to fix the rotary blocks and the driven gear, and the position of the connecting bolt on the adjusting groove can be adjusted; the rotary block comprises a reset mechanism and a knocking block, the reset mechanism is composed of a fixed rod and a movable rod, the fixed rod is located at a fixed part and does not move, one end of the movable rod is hinged to one end of the fixed rod, the other end of the movable rod is hinged to the knocking block, a spring is arranged between the two connecting rods, and the movable rod which is separated from a balance position after knocking resets. Furthermore, the reference circle diameters of the driven gears are different, and therefore the rotating speeds of the driven gears are also different.
Further, a shell is arranged outside the transmission mechanism.
Further, a thrust bearing is arranged between the rotary block and the partition plate.
Furthermore, a buffer sheet is arranged on one side of the knocking block, which is contacted with the pipeline,
furthermore, scales are arranged on the adjusting groove, so that the extending length of the knocking block can be conveniently adjusted.
Furthermore, a slide way is arranged at the part of the movable rod connected with the knocking block.
The invention can at least achieve the following technical effects:
(1) can be directly sleeved on a pipeline, and particularly has better use effect on an annular welding line.
(2) When multiple groups of the welding line striking mechanism are used simultaneously, one group directly strikes the welding line, and the other groups strike the pipe wall close to the welding line to generate mechanical vibration, so that the optimization of the welding line structure is realized in a matching manner.
(3) The driven gears are different in size, so that the knocking frequency is different, and resonance is avoided.
(4) The adjusting groove on the fixing part is used for adjusting the rotating center of the rotary block to adapt to pipelines with different pipe diameters, and scales are arranged on the adjusting groove to facilitate observation of the adjusting amount.
(5) The knocking block is movably connected, so that scratches cannot be left on a welding seam or a pipeline.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.
In the drawings:
FIG. 1 schematically illustrates a side view of the present invention;
FIG. 2 schematically shows a cross-sectional view taken along A-A in FIG. 1;
FIG. 3 is a schematic view showing the structure of the turning block of the present invention;
wherein the figures include the following reference numerals:
11-driven gear, 12-driving gear, 2-shell, 3-partition plate, 4-rotary block, 41-fixed part, 42-adjusting groove, 43-knocking block, 44-sliding rod, 45-spring, 5-connecting bolt and 6-thrust bearing.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure; unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application; as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Spatially relative terms, such as "above … …," "above … …," "above … …, above," "overlying" and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures; it will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.
Examples
A post-welding treatment device for welding an oil and gas pipeline as shown in figures 1-3 is not independent, and is formed by using a plurality of devices simultaneously, directly sleeving the devices at the welding seam of the pipeline and at two sides of the welding seam, knocking mechanical vibration formed by knocking two sides of the pipeline through force of directly knocking the welding seam, and jointly acting on the welding seam to weaken internal stress in the welding seam, and the device structurally comprises a transmission mechanism, a partition plate 3 and a vibration part, wherein the transmission mechanism and the vibration part are respectively positioned at two sides of the partition plate 3 and are fastened through a connecting bolt 5, a rotary block 4 in the vibration part is contacted with the pipeline and rotates at high speed along with the high-speed rotation of the transmission mechanism, the pipeline is continuously knocked to form mechanical vibration, the transmission mechanism is mainly formed by meshing gears with different reference circle diameters, and other gears are driven to rotate through the movement of a driving gear 12 connected with a power device, and meanwhile, the working is started, and the rotating speeds per minute are different due to the different diameters of the reference circles, so that the resonance is avoided.
The transmission mechanism comprises a driving gear 12 and a driven gear 11, wherein the driving gear 12 and the driven gear 11 are arranged in a mode shown in fig. 2, the driving gear 12 is connected with a power device, the rotating force of the power device is transmitted to the driven gear 11, the driven gear 11 is fixed on the partition plate 3 and meshed with each other, the driving gear 12 and the driven gear can simultaneously start rotating along with the rotation of the driving gear 12, the reference circle diameters of the driven gear 11 are different, the rotating speeds of the driven gear 11 are different, if the same frequency rotating speed is adopted, resonance can occur, the resonance can be transmitted along a pipeline, the friction with the pipeline fixing part 41 is accelerated, noise is also generated, and therefore the situation is avoided as.
It should be noted that: because the gear rotational speed is very fast, in order to avoid external environment influence, baffle 3 and drive mechanism are provided with shell 2 outward, and drive mechanism covers is covered to shell 2.
As shown in fig. 1, the partition plate 3 is a circular ring with an inner diameter larger than the outer diameter of the pipeline, the transmission mechanism and the vibrating portion are respectively installed on two sides of the partition plate 3, the partition plate 3 is provided with a plurality of through holes for installing the connecting bolts 5, and the connecting bolts 5 connect and fix the driven gear 11 and the vibrating portion in the transmission mechanism, so that the rotation of the driven gear 11 can drive the vibrating portion to rotate along with the driven gear 11.
It is worth noting that: the partition plate 3 is not contacted with the pipeline under most conditions, is only used for installing the connecting bolt 5, ensures the meshing relation between the driven gears 11, and can select a supporting structure to support according to different specific working conditions.
The vibration part is a main part for generating mechanical vibration and is composed of a plurality of rotary blocks 4 connected with a driven gear 11, as shown in figure 1, the rotary blocks 4 are fixed by connecting bolts 5, a thrust bearing 6 is arranged between the rotary blocks 4 and a partition plate 3, the thrust bearing 6 can bear the axial pressure of the connecting bolts 5, and when the rotary blocks 4 are pressed, the rotation of the rotary blocks 4 is not influenced; the structure of the rotary block 4 is shown in fig. 3, the rotation direction of the rotary block 4 is clockwise in the direction shown in fig. 3, the rotary block 4 comprises a fixing part 41, a knocking block 43 and a reset mechanism, the fixing part 41 is used for fixing with the connecting bolt 5, the fixing part 41 is provided with an adjusting groove 42, the adjusting groove 42 is a through groove, the connecting bolt 5 passes through the adjusting groove 42 to be fixed with the driven gear 11, and the position of the connecting bolt 5 on the adjusting groove 42 is adjusted to adapt to the use of pipelines with different pipe diameters; the knocking block 43 is arranged at one end of the fixing part 41, a buffer sheet is arranged on one side, in contact with the pipeline, of the knocking block 43, the surface of a welding seam is prevented from being damaged when the knocking block is directly knocked, the other side of the knocking block 43 is connected with a reset mechanism, the knocking block 43 can collide with the pipeline when rotating, rotates after being subjected to pipeline resistance, and returns to the original position through the reset mechanism at the position far away from the pipeline, so that the pipeline is repeatedly knocked, and the knocking block can rotate after colliding with the pipeline, so that scratches cannot be left on the pipeline, and the pipeline is slightly damaged; the reset mechanism is composed of two sliding rods 44, wherein one sliding rod is positioned at the fixed part 41 and does not move, the sliding rod is called a fixed rod, the other sliding rod 44 is called a movable rod, one end of the movable rod is hinged with one end of the fixed rod, the other end of the movable rod is hinged with the knocking block 43, a spring 45 is arranged between the two sliding rods 44, and the sliding rod 44 which is separated from the balance position after knocking is reset.
It is worth noting that scales are arranged on the adjusting groove, so that the extending length of the knocking block can be conveniently adjusted.
It should be noted that the portion that the movable rod is connected with the piece of strikeing is provided with the slide, when strikeing the piece atress rotatory, the connecting portion of movable rod on strikeing the piece do corresponding slip.
Claims (5)
1. The utility model provides an oil gas pipeline welded post-weld processing apparatus which characterized in that: the vibration power machine comprises a transmission mechanism, a partition plate and a vibration part, wherein the transmission mechanism comprises a driving gear and a driven gear, the driving gear is connected with a power device, the driven gear is fixed on the partition plate and meshed with the partition plate, and the reference circle diameters of the driven gears are different, so that the rotating speeds of the driven gears are different; the baffle is a circular ring with the inner diameter larger than the outer diameter of the pipeline, a transmission mechanism and a vibration part are respectively arranged on two sides of the baffle, a plurality of through holes are formed in the baffle, and the driven gear is connected with the vibration part through connecting bolts penetrating through the through holes; the vibration part is composed of a plurality of rotary blocks connected with the driven gear, each rotary block comprises a fixing part, a knocking block and a reset mechanism, the fixing part is fixed with the driven gear through a connecting bolt, an adjusting groove is formed in the fixing part, the adjusting groove is a through groove, the connecting bolt penetrates through the adjusting groove to fix the rotary blocks and the driven gear, and the position of the connecting bolt on the adjusting groove can be adjusted; the rotary block comprises a reset mechanism and a knocking block, the reset mechanism is composed of a fixed rod and a movable rod, the fixed rod is located at a fixed part and does not move, one end of the movable rod is hinged to one end of the fixed rod, the other end of the movable rod is hinged to the knocking block, a spring is arranged between the two connecting rods, the movable rod which is separated from a balance position after knocking is reset, and a thrust bearing is arranged between the rotary block and the partition plate.
2. The post-weld treatment device for welding an oil and gas pipeline according to claim 1, wherein: the adjusting groove is provided with scales, so that the extending length of the knocking block can be conveniently adjusted.
3. The post-weld treatment device for welding an oil and gas pipeline according to claim 1, wherein: and a shell is arranged outside the transmission mechanism.
4. The post-weld treatment device for welding an oil and gas pipeline according to claim 1, wherein: the part of the movable rod connected with the knocking block is provided with a slide way.
5. The post-weld treatment device for welding an oil and gas pipeline according to claim 1, wherein: and a buffer sheet is arranged on one side of the knocking block, which is in contact with the pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910153215.XA CN109852786B (en) | 2019-02-28 | 2019-02-28 | Oil gas pipeline welded post-weld processing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910153215.XA CN109852786B (en) | 2019-02-28 | 2019-02-28 | Oil gas pipeline welded post-weld processing apparatus |
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| CN109852786A CN109852786A (en) | 2019-06-07 |
| CN109852786B true CN109852786B (en) | 2020-12-01 |
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| CN201910153215.XA Active CN109852786B (en) | 2019-02-28 | 2019-02-28 | Oil gas pipeline welded post-weld processing apparatus |
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| CN112464528B (en) * | 2020-11-10 | 2022-02-11 | 中国核动力研究设计院 | Method for measuring residual stress on inner surface and inside of welded pipeline |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB510681A (en) * | 1937-02-04 | 1939-08-04 | Ame Ets A Sisson Lehmann | Improvements in and relating to centrifugally spraying matter suspended in fluids |
| JPS58107292A (en) * | 1981-12-21 | 1983-06-25 | Kawasaki Heavy Ind Ltd | Method and device for treating welded joint part of pipe |
| JP4331300B2 (en) * | 1999-02-15 | 2009-09-16 | 日本発條株式会社 | Method for manufacturing hollow stabilizer |
| CN201539634U (en) * | 2009-07-20 | 2010-08-04 | 刘友宏 | Damping bracket of pulsating fluid running pipeline |
| JP5367558B2 (en) * | 2009-12-25 | 2013-12-11 | 日立Ｇｅニュークリア・エナジー株式会社 | How to improve residual stress in piping |
| CN102242250B (en) * | 2011-07-11 | 2013-11-06 | 宝钢钢构有限公司 | Device and method for eliminating welding stress of steel pipe ring beam by mechanical vibration |
| JP6041688B2 (en) * | 2013-01-28 | 2016-12-14 | 三菱重工業株式会社 | Water jet peening equipment |
| CN206425808U (en) * | 2017-01-14 | 2017-08-22 | 天津鸿翔工程机械有限公司 | Drilling rod stress taps cancellation element |
| CN206635374U (en) * | 2017-03-16 | 2017-11-14 | 湖州飞剑杆塔制造有限公司 | A kind of device for being exclusively used in steel tube tower destressing |
| CN207656129U (en) * | 2017-12-12 | 2018-07-27 | 上海乾恒实业有限公司 | Ring flange Automation of Welding after welding treatment equipment in a kind of chemical pipeline installing engineering |
| CN108660309A (en) * | 2018-06-08 | 2018-10-16 | 北京理工大学 | A kind of gas pipeline welding residual stress high energy acoustic beam abatement device |
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