CN204276581U - A kind of pipe connecting flange post welding distortion means for correcting - Google Patents
A kind of pipe connecting flange post welding distortion means for correcting Download PDFInfo
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- CN204276581U CN204276581U CN201420661376.2U CN201420661376U CN204276581U CN 204276581 U CN204276581 U CN 204276581U CN 201420661376 U CN201420661376 U CN 201420661376U CN 204276581 U CN204276581 U CN 204276581U
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Abstract
The utility model provides a kind of pipe connecting flange post welding distortion means for correcting, comprise two square boxs, four connecting studs and at least one support mechanism, during use, by setting up and down for two square boxs, these two square boxs are connected by four connecting studs vertically arranged, square box and this four connecting studs of being positioned at below are fastenedly connected, and arrange support mechanism between two square boxs, drive the square box above being positioned to move up along the axis direction of connecting stud by this support mechanism.This means for correcting acts on deformation position, makes pipe connecting flange under the effect of external force, relative to welding deformation direction reversal deformation, distortion position is repaired.During by this correction, added external force is gentleer, and pipe connecting flange distortion slowly, is easy to operation and controls, correct more accurate, can meet the requirement of thin-walled pressure vessel pipe connecting flange and the reparation of cylindrical shell post welding distortion.
Description
Technical field
The utility model belongs to pressure vessel manufacturing frock technical field, relates to a kind of pipe connecting flange post welding distortion means for correcting, is mainly used in repairing in Pressure Vessel Manufacture Process, the distortion at pipe connecting flange and barrel soldering position.
Background technology
In Pressure Vessel Manufacture Process, when pipe connecting flange and cylindrical shell fillet weld seam, in welding point region, cylindrical shell can occur subsiding in various degree, pipe connecting flange also can corresponding tilt, what especially show on thin-walled or rustless steel container is more outstanding.This distortion, on tower type container or tank container, if do not affect use, can be repaired; If this distortion occurs on heat exchange container, the local collapse distortion of cylindrical shell can affect passing through smoothly of deflection plate, then must repair.Usually take during reparation: 1) after flame heating, knock correction with sledgehammer; 2) external force traction (generally adopting chain block); 3) jack support.These three kinds of modes can often be used in actual production, and can reach the repairing effect of expection.But there is weak point: percussion power is wayward, entirely by experience, revise precision not high, the often excessive correction of meeting; When support or traction, not easily find the strong point, need external support component to assist.
Summary of the invention
The purpose of this utility model is to provide one and is applicable to Nozzle Zone of Vessels flange post welding distortion means for correcting, more easily, accurately can complete the correction of this welding deformation, and to the experience of operator and level of skill less demanding.
For achieving the above object, the technical scheme that the utility model adopts is: a kind of pipe connecting flange post welding distortion means for correcting, comprise two square boxs, four connecting studs and at least one support mechanism, during use, by setting up and down for two square boxs, these two square boxs are connected by four connecting studs vertically arranged, square box and this four connecting studs of being positioned at below are fastenedly connected, support mechanism is set between two square boxs, drives the square box above being positioned to move up along the axis direction of connecting stud by this support mechanism.Described support mechanism comprises support stud, and one end of support stud is provided with back-up block, and the other end is provided with support nut; During use, one end that support stud is provided with back-up block connects with the square box being positioned at top, and back-up block is positioned at the below of this square box, supports this square box; One end that support stud is provided with support nut connects with the square box being positioned at below, and support nut is positioned at the top of this square box.The described square box being positioned at below comprises the saddle-shaped support camber beam of two lower supporting plates and two back-offs be arranged side by side, the support two ends of camber beam and the two ends of lower supporting plate are all processed with bar hole, multiple first placed hole is processed with on lower supporting plate, between two bar holes, during use, lower supporting plate is positioned at the top supporting camber beam, lower supporting plate and support camber beam and be fastenedly connected by the bar hole at two ends and connecting stud, one end that support stud is provided with support nut is stretched in the first placed hole, and support nut is positioned at above lower supporting plate; The described square box being positioned at top comprises two upper backup pads and two connecting plates, upper backup pad and connecting plate two ends are all processed with bar hole, multiple second placed hole is processed with on upper backup pad, between two bar holes, during use, connecting plate is positioned at the top of upper backup pad, and upper backup pad and lower supporting plate are arranged in the same way, connecting plate is connected with connecting stud by bar hole with upper backup pad, one end that support stud is provided with back-up block is stretched in the second placed hole, and upper backup pad is positioned at the top of back-up block.
The utility model means for correcting adopts two shapes of a saddle to support camber beam, rides on cylindrical shell, adapted two lower supporting plates, by Stud connection, forms lower support face; Upper supporting surface is made up of two connecting plates and two upper backup pads, and connecting plate acts on ring flange lower surface; Produce external force by the nut turned on support stud, when fastening nut (nut turns to direction, stud termination), ring flange, under the effect of external force, relative to welding deformation direction reversal deformation, makes distortion position be repaired.During by this correction, added external force is gentleer, and pipe connecting flange distortion slowly, is easy to operation and controls, correct more accurate, can meet the requirement of thin-walled pressure vessel pipe connecting flange and the reparation of cylindrical shell post welding distortion.
Accompanying drawing explanation
Fig. 1 is schematic diagram when adopting existing method correction pipe connecting flange distortion.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the structural representation of the utility model means for correcting.
Fig. 4 is the left view of Fig. 3.
In figure: 1. cylindrical shell, 2. pipe connecting flange, 3. pulling apparatus, 4. jack, 5. deflection plate, 6. support camber beam, 7. lower supporting plate, 8. connecting stud, 9. upper backup pad, 10. connecting plate, 11. support studs, 12. blocks, 13. first placed holes, 14. second placed holes, 15. back-up blocks, 16. support nuts.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
In Pressure Vessel Manufacture Process, after pipe connecting flange 2 and cylindrical shell 1 fillet weld seam, in welding point region, cylindrical shell 1 can occur subsiding in various degree, and pipe connecting flange 2 is corresponding inclination also, and what especially show on thin-walled or rustless steel container is more outstanding.If this distortion occurs on heat exchange container, the local collapse distortion of cylindrical shell 1 can affect passing through smoothly of deflection plate 5, so, must repair.Existing restorative procedure is: draw the pipe connecting flange 2 tilted with pulling apparatus 3, make it reset; Or, between pipe connecting flange 2 and cylindrical shell 1, carry out support with jack 4, pipe connecting flange 2 resetted, as depicted in figs. 1 and 2.But when support or traction reduction pipe connecting flange 2, not easily find the strong point, need external support component to assist, cause repair time longer, efficiency is lower, and require higher to the experience of operating personnel and level of skill, and repairing effect is undesirable.In order to overcome problems of the prior art, the utility model provides a kind of structure means for correcting as shown in Figure 3 and Figure 4, more easily, accurately can complete the correction of this welding deformation, and to the experience of operator and level of skill less demanding.This means for correcting comprises support stud 11, two and supports camber beam 6, two lower supporting plates 7, two upper backup pads 9, two connecting plates 10 and four connecting studs 8;
Supporting camber beam 6 is the shape of a saddle.Support the two ends of camber beam 6, the two ends of lower supporting plate 7, the two ends of upper backup pad 9 and connecting plate 10 two ends be all processed with bar hole.Be processed with multiple first placed hole 13 on lower supporting plate 7, between two bar holes, on upper backup pad 9, between two bar holes, be processed with multiple second placed hole 14.
Support stud 11 can be single head stud, also can be studs.Support stud 11 is if single head stud, then do not have threaded one end to be provided with back-up block 15, the other end is provided with support nut 16; If support stud 11 is studs, then at its two ends difference mounting nuts, one of them nut is as back-up block 15, and another nut is as support nut 16.
Connecting stud 8 can be single head stud, also can be studs.If connecting stud 8 is single head studs, then do not having threaded one end that block 12 is set; If connecting stud 8 is studs, at its one end mounting nuts as block 12.
When needing to correct the pipe connecting flange 2 of post welding distortion, support camber beams 6 by two and tip upside down on side by side on cylindrical shell 1, make bossing in the middle part of support camber beam 6 upward, the soft goods such as gasket rubber skin, aluminium sheet between support camber beam 6 and cylindrical shell 1; Then, two lower supporting plates 7 are placed on two and support on camber beam 6, make two support camber beams 6 and two lower supporting plates 7 form a square box; The one end not arranging block 12 at connecting stud 8 is set with a nut, this nut is made to be in the medium position of connecting stud 8, one end connecting stud 8 being overlapped loading nut is inserted in the bar hole on lower supporting plate 7 from top to bottom, and successively through lower supporting plate 7 and support camber beam 6, stretch out and support outside camber beam 6, stretch out at connecting stud 8 end supported outside camber beam 6 and another nut is installed.Adjust two distances supported between camber beam 6, make this distance be not more than the external diameter of pipe connecting flange 1 upper flange plate, be fastenedly connected two nuts of stud 8 lower end suit, support camber beam 6 and lower supporting plate 7 and four connecting studs 8 are fastenedly connected.Then, be set with a upper backup pad 9 at two connecting studs 8, upper backup pad 9 and lower supporting plate 7 are arranged in the same way, and the bottom surface of upper backup pad 9 contacts with block 12, be set with a connecting plate 10 at two connecting studs 8, connecting plate 10 is arranged in the same way with support camber beam 6; Two upper backup pads 9 and two connecting plates 10 form square box structure.One end support stud 11 being arranged back-up block 15 penetrates in the second placed hole 15, and one end support stud 11 being arranged support nut 16 penetrates in the first placed hole 13, completes the installation of means for correcting.Find out cylindrical shell 1 and be out of shape the most serious position, this position is support position.Rotate this means for correcting, make connecting plate between the cylindrical shell 1 and pipe connecting flange 2 of this support position, turn support nut 16, support stud 11 is moved up relative to lower supporting plate 7, lower supporting plate 7 moves up in process, and back-up block 15 promotes upper backup pad 9 and moves up, and promotes connecting plate 10 and move up, butt tube flange 2 produces support power upwards, makes the pipe connecting flange 2 of inclination, the position that subsides of cylindrical shell 1 corrected.
In order to make uniform force, multiple support stud 11 can be adopted simultaneously.Support position can be converted by multiple second placed hole 14 on upper backup pad 9 and multiple first placed holes 13 on lower supporting plate 7.
In trimming process, should be noted observation, prevent ring flange rigidity to be out of shape not.If ring flange rigidity is inadequate, flame heat distortion position can be adopted if desired, to reduce the intensity at this position, thus correction for reduction external force, avoid damaging ring flange; Or adopt blind flange method for strengthening, namely add a blind flange at end face of flange, be bolted fastening, thus strengthen ring flange rigidity.(note: blind flange bolt hole and center circle thereof are all equal with the flange that will correct, and thickness is determined according to actual conditions, and external diameter is equal to or greater than flange; About the determination of blind flange external diameter, according to the pipe connecting flange concrete condition that will correct, if flange outer diameter is too small, be less than the square frame that upper backup pad 9 and connecting plate 10 surround, blind flange external diameter should be greater than flange, and is greater than the square frame that upper backup pad 9 and connecting plate 10 surround; If blind flange external diameter is greater than flange, then timing, External Force Acting point can be positioned on blind flange).
The specification of the pipe connecting flange that this means for correcting can be repaired as required and cylindrical shell, carries out suitable convergent-divergent; When specification is comparatively large, cannot timing by support stud 11, small-size jack can be adopted to substitute support stud 11, to reach the object of correction.
Claims (1)
1. a pipe connecting flange post welding distortion means for correcting, it is characterized in that, described means for correcting comprises two square boxs, four connecting studs (8) and at least one support mechanism, during use, by setting up and down for two square boxs, these two square boxs are connected by four connecting studs (8) vertically arranged, square box and this four connecting studs (8) of being positioned at below are fastenedly connected, support mechanism is set between two square boxs, drives the square box above being positioned to move up along the axis direction of connecting stud (8) by this support mechanism.
2. pipe connecting flange post welding distortion means for correcting according to claim 1, is characterized in that, described support mechanism comprises support stud (11), and one end of support stud (11) is provided with back-up block (15), and the other end is provided with support nut (16); During use, one end that support stud (11) is provided with back-up block (15) connects with the square box being positioned at top, and back-up block (15) is positioned at the below of this square box, supports this square box; One end that support stud (11) is provided with support nut (16) connects with the square box being positioned at below, and support nut (16) is positioned at the top of this square box.
3. pipe connecting flange post welding distortion means for correcting according to claim 2, it is characterized in that, the described square box being positioned at below comprises the saddle-shaped support camber beam (6) of two lower supporting plates (7) and two back-offs be arranged side by side, the two ends at the two ends and lower supporting plate (7) that support camber beam (6) are all processed with bar hole, on lower supporting plate (7), multiple first placed hole (13) is processed with between two bar holes, during use, lower supporting plate (7) is positioned at the top supporting camber beam (6), lower supporting plate (7) and support camber beam (6) and be fastenedly connected by the bar hole at two ends and connecting stud (8), one end that support stud (11) is provided with support nut (16) is stretched in the first placed hole (13), and support nut (16) is positioned at lower supporting plate (7) top,
The described square box being positioned at top comprises two upper backup pads (9) and two connecting plates (10), upper backup pad (9) and connecting plate (10) two ends are all processed with bar hole, on upper backup pad (9), multiple second placed hole (14) is processed with between two bar holes, during use, connecting plate (10) is positioned at the top of upper backup pad (9), and upper backup pad (9) and lower supporting plate (7) are arranged in the same way, connecting plate (10) is connected with connecting stud (8) by bar hole with upper backup pad (9), one end that support stud (11) is provided with back-up block (15) is stretched in the second placed hole (14), upper backup pad (9) is positioned at the top of back-up block (15).
4. pipe connecting flange post welding distortion means for correcting according to claim 1, is characterized in that, described support mechanism is jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420661376.2U CN204276581U (en) | 2014-11-07 | 2014-11-07 | A kind of pipe connecting flange post welding distortion means for correcting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420661376.2U CN204276581U (en) | 2014-11-07 | 2014-11-07 | A kind of pipe connecting flange post welding distortion means for correcting |
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| Publication Number | Publication Date |
|---|---|
| CN204276581U true CN204276581U (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420661376.2U Expired - Fee Related CN204276581U (en) | 2014-11-07 | 2014-11-07 | A kind of pipe connecting flange post welding distortion means for correcting |
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| CN (1) | CN204276581U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104907362A (en) * | 2015-05-19 | 2015-09-16 | 广东韶钢松山股份有限公司 | Correcting method for collapse electric dedusting top plate |
| CN105773009A (en) * | 2016-05-23 | 2016-07-20 | 安徽昌永得机械有限公司 | Crane big arm welding deformation planeness correction tool |
| CN110227904A (en) * | 2018-03-06 | 2019-09-13 | 兰州兰石重型装备股份有限公司 | Adjust the tooling and its application method of pipe connecting flange unevenness |
-
2014
- 2014-11-07 CN CN201420661376.2U patent/CN204276581U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104907362A (en) * | 2015-05-19 | 2015-09-16 | 广东韶钢松山股份有限公司 | Correcting method for collapse electric dedusting top plate |
| CN104907362B (en) * | 2015-05-19 | 2017-03-29 | 广东韶钢松山股份有限公司 | A kind of bearing calibration of the electric precipitation top board that subsides |
| CN105773009A (en) * | 2016-05-23 | 2016-07-20 | 安徽昌永得机械有限公司 | Crane big arm welding deformation planeness correction tool |
| CN110227904A (en) * | 2018-03-06 | 2019-09-13 | 兰州兰石重型装备股份有限公司 | Adjust the tooling and its application method of pipe connecting flange unevenness |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20201107 |
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| CF01 | Termination of patent right due to non-payment of annual fee |