CN102922452B - Method for preventing spherical tank medium plate from deforming during tapping - Google Patents
Method for preventing spherical tank medium plate from deforming during tapping Download PDFInfo
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- CN102922452B CN102922452B CN201210467274.2A CN201210467274A CN102922452B CN 102922452 B CN102922452 B CN 102922452B CN 201210467274 A CN201210467274 A CN 201210467274A CN 102922452 B CN102922452 B CN 102922452B
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- support post
- skid device
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- middle plate
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Abstract
The invention provides a method for preventing a spherical tank medium plate from deforming during tapping. The deformation of the medium plate in a tapping process is reduced by an anti-deformation bracket, and the anti-deformation bracket comprises left and right support columns and four anti-slip devices. The method comprises the steps of: firstly, adjusting the distance between the left and right support columns until the left and right support columns are kept near a tapping line of a manhole of the medium plate; then coarsely tuning the angles and lengths of the four anti-slip device until the distances among the four anti-slip devices are chord lengths of four edges of the medium plate; restraining the deformation of the medium plate due to dead load by the four anti-slip devices; hoisting the medium plate to the anti-deformation bracket, finely turning the four anti-slip devices, and finally adjusting the heights of the left and right support columns, thus supporting the top parts of the left and right support columns at the position which is 100mm from the tapping line of the manhole in the medium plate. The method has the beneficial effects that deformation of the medium plate due to the dead load is effectively prevented; thermal deformation generated by the tapping part of the medium plate is effectively reduced, and the method is suitable for tapping the medium plates with different specifications and can be repeatedly used.
Description
Technical field
The present invention relates to the extremely middle plate perforate of spherical tank field, be specifically related to a kind of method that prevents the extremely middle plate perforate distortion of spherical tank.
Background technology
Spherical tank is widely used in the industries such as metallurgy, petrochemical industry, the energy.Ordinary circumstance, the technique mouth of pipe of spherical tank be opened in Spherical Tank Shell Plates up and down extremely on plate (as shown in Figure 1), in the time carrying out perforate operation, plate level in extremely need to be placed on workbench, then in extremely, on plate, set up perforate frock and carry out perforate, the wherein about 1000mm of the opening diameter of manhole.In operating process, Spherical Tank Shell Plates produces distortion because of deadweight, and extremely, plate perforate position is heated and can causes distortion aggravation.In recent years, many large-size spherical tanks, for optimal design, reduced weld seam, constantly by large size monolithic Spherical Tank Shell Plates (plate especially extremely).The distortion of large-sized extremely middle plate in the time carrying out perforate is just larger, especially the extremely middle plate of stainless steel spherical tank.Stainless steel is yielding, once be difficult to after distortion proofread and correct.
Summary of the invention
The technical problem to be solved in the present invention is, the deformation defect existing when plate perforate in extremely for above-mentioned existing spherical tank provides a kind of method that prevents plate perforate distortion during spherical tank extremely.
The present invention for solving the problems of the technologies described above adopted technical scheme is:
A method that prevents plate perforate distortion during spherical tank is extremely, is characterized in that: utilize anti-deformation bracket to reduce the distortion of extremely middle plate in the time of perforate, it comprises the following steps:
1) prepare anti-deformation bracket: anti-deformation bracket comprises left support post and right support post, be socketed in the first anti-skid device and the 3rd anti-skid device on left support post, and being socketed in the second anti-skid device and the 4th anti-skid device on right support post, left support post is connected by retractor device with right support post;
2) distance between left support post and the right support post of adjusting anti-deformation bracket, until left support post and right support post remain on respectively the position of the line of perforations 100mm of the manhole of the extremely middle plate of distance;
3) angle and the length of the first anti-skid device of coarse adjustment anti-deformation bracket, the second anti-skid device, the 3rd anti-skid device, the 4th anti-skid device, until the distance between four anti-skid devices is four limit chord lengths of extremely middle plate, the distortion that in four anti-skid devices constraints extremely, plate produces because of deadweight;
4) extremely middle plate is lifted on anti-deformation bracket;
5) fine setting the first anti-skid device, the second anti-skid device, the 3rd anti-skid device, the 4th anti-skid device, adopts arc model to detect the curvature of extremely middle plate, in the time that the curvature of extremely middle plate reaches the curvature of spherical tank, stops regulating;
6) height of adjusting left support post and right support post, make the top of left support post and right support post just in time be supported on respectively the position of the manhole line of perforations 100mm on the extremely middle plate of distance, and there is micro-strain, reduce extremely by left support post and right support post in plate because of the perforate distortion producing of being heated;
7) after having regulated, anti-deformation bracket is installed, carry out extremely middle plate perforate, removal anti-deformation bracket after perforate.
In such scheme, left support post is identical with the structure of right support post, includes base, locking nut, rotating shaft, height regulating rod; Rotating shaft is fixed on base, and locking nut is threaded with rotating shaft, and height regulating rod is positioned at rotating shaft top and is threaded with rotating shaft.
In such scheme, described retractor device comprises two screw rods and a nut, and a screw rod is fixed on the base of left support post, and another screw rod is fixed on the base of right support post, between two screw rods, connects by nut.
In such scheme, the structure of the first anti-skid device, the second anti-skid device, the 3rd anti-skid device, the 4th anti-skid device is identical, include long draw, tightening nut, short rod, steel landing slab, angle steel baffle plate, long draw is socketed in the rotating shaft between base and locking nut, between short rod and long draw, be connected by tightening nut, the end of steel landing slab and short rod is affixed, and angle steel baffle plate is located at a jiao of steel landing slab.
In such scheme, the first anti-skid device, the second anti-skid device, the 3rd anti-skid device, the 4th anti-skid device equal in length, and relatively left support post and right support post symmetrical.
In such scheme, the top of height regulating rod is provided with vulcanie pad.
In such scheme, the interior angle side of angle steel baffle plate is provided with wooden baffle plate.
In such scheme, the lower end of short rod is provided with Universal pulley.
Beneficial effect of the present invention is:
1, the distortion that in effectively preventing extremely, plate produces because of deadweight;
2, the thermal deformation that in effectively reducing extremely, plate perforate position produces;
3, be applicable to the extremely middle plate perforate of the spherical tank of different size, different sizes, reusable.
Brief description of the drawings
Fig. 1 is the structural representation of the extremely middle plate of existing spherical tank.
Fig. 2 is existing bright extremely middle plate line of perforations schematic diagram.
Fig. 3 is that in the present invention extremely, plate is positioned over the structural representation on anti-deformation bracket.
Fig. 4 is the structural representation of anti-deformation bracket of the present invention.
Fig. 5 is the front view of Fig. 4.
Fig. 6 is the rearview of Fig. 4.
In figure, 1-the first anti-skid device, 2-the second anti-skid device, 3-the 3rd anti-skid device, 4-the 4th anti-skid device, 5-left support post, 6-right support post, 7-nut, 8-long draw, 9-tightening nut, 10-short rod, 11-steel landing slab, 12-angle steel baffle plate, the wooden baffle plate of 13-, 14-Universal pulley, 15-screw rod, 16-base, 17-locking nut, 18-rotating shaft, 19-height regulating rod, 20-vulcanie pad, the extremely middle plate of 21-, 22-manhole.
Detailed description of the invention
Below in conjunction with drawings and Examples, technical scheme of the present invention is further described in detail.
Shown in Fig. 1 ~ Fig. 6, the method that prevents the extremely middle plate perforate distortion of spherical tank of the present invention, utilizes anti-deformation bracket to reduce the distortion of extremely middle plate 21 in the time of perforate;
Described anti-deformation bracket, comprises left support post 5 and right support post 6, is socketed in the first anti-skid device 1 and the 3rd anti-skid device 3 on left support post 5, and is socketed in the second anti-skid device 2 and the 4th anti-skid device 4 on right support post 6; Left support post 5 is connected by retractor device with right support post 6.
Left support post 5 is identical with the structure of right support post 6, includes base 16, locking nut 17, rotating shaft 18, height regulating rod 19; Rotating shaft 18 is fixed in (rotating shaft 18 is provided with external screw thread) on base 16, and locking nut 17 is threaded with rotating shaft 18, and height regulating rod 19 is positioned at rotating shaft 18 tops and is threaded with rotating shaft 18, and the top of height regulating rod 19 is also provided with vulcanie pad 20.
Described retractor device comprises that two screw rods 15 and 7, one screw rods 15 of a nut are fixed on the base 16 of left support post 5, and another screw rod 15 is fixed on the base 16 of right support post 6, between two screw rods 15, connects by nut 7.
The first anti-skid device 1, the second anti-skid device 2, the 3rd anti-skid device 3, the structure of the 4th anti-skid device 4 is identical, and (four anti-skid devices 1 ~ 4 are equal in length, and left support post 5 and right support post 6 are symmetrical relatively), include long draw 8, tightening nut 9, short rod 10, steel landing slab 11, angle steel baffle plate 12, long draw 8 is all socketed in the rotating shaft 18 between base 16 and locking nut 17, between short rod 10 and long draw 8, be connected by tightening nut 9, steel landing slab 11 is affixed with the end of short rod 10, the lower end of short rod 10 is also provided with Universal pulley 14, angle steel baffle plate 12 is located at a jiao of steel landing slab 11, the interior angle side of angle steel baffle plate 12 is also provided with wooden baffle plate 13.
Specifically comprise the following steps:
1) distance between left support post and the right support post of adjusting anti-deformation bracket: rotating nut 7, drive screw rod 15 to move, screw rod 15 is connected with base 16, thereby regulate the distance between left support post 5 and right support post 6, until left support post 5 and right support post 6 remain on respectively near the 100mm(100mm outside line of perforations of line of perforations of the manhole 22 of the extremely middle plate 21 of distance);
2) four anti-skid devices of coarse adjustment (the first anti-skid device 1, the second anti-skid device 2, the 3rd anti-skid device 3, the 4th anti-skid device 4) angle and length, first be connected to the long draw 8 in rotating shaft 18 by rotary sleeve, adjust the angle of anti-skid device 1 ~ 4, then turn tightening nut 9, make to connect superincumbent short rod 10 flexible, regulate the length on four anti-skid devices 1 ~ 4, until the distance between angle steel baffle plate 12 is the four limit chord lengths (until the distance between four anti-skid devices 1 ~ 4 is four limit chord lengths of extremely middle plate 21) of extremely middle plate 21, the distortion that in four anti-skid device 1 ~ 4 constraints extremely, plate 21 produces because of deadweight,
3) extremely middle plate 21 is lifted into (as shown in Figure 3) on anti-deformation bracket, four corners of angle steel baffle plate 12, on wooden baffle plate 13, protect it not to be damaged, and can also prevent that it is subject to iron contamination concerning stainless steel products;
4) locking nut 17 on left support post 5 and right support post 6 is locked, fix four anti-skid devices 1 ~ 4, it is not twisted, finely tune four anti-skid devices 1 ~ 4, adopt arc model to detect the curvature of extremely middle plate 21, in the time that the curvature of extremely middle plate 21 reaches the curvature of spherical tank, stop regulating;
5) by regulating height regulating rod 19 in rotating shaft 18 to regulate the height of left support post and right support post, make the vulcanie pad 20 at height regulating rod 19 tops push up extremely middle plate 21, and be supported on distance extremely in the position (100mm outside line of perforations) of manhole 22 line of perforations 100mm on plate, there is micro-strain, in reducing extremely by left and right support column, plate is because of the perforate distortion producing of being heated, the Main Function of vulcanie pad 20 is to prevent that anti-deformation bracket from scratching extremely middle plate 21, can also prevent that for stainless steel products it is subject to iron contamination;
6) after having regulated, anti-deformation bracket is installed, carry out extremely middle plate 21 perforates, removal anti-deformation bracket after perforate.
Above-described is only preferred embodiment of the present invention, certainly can not limit with this interest field of the present invention, and the equivalence of therefore doing according to the present patent application the scope of the claims changes, and still belongs to protection scope of the present invention.
Claims (8)
1. a method that prevents plate perforate distortion during spherical tank is extremely, is characterized in that: it comprises the following steps:
1) prepare anti-deformation bracket: anti-deformation bracket comprises left support post and right support post, be socketed in the first anti-skid device and the 3rd anti-skid device on left support post, and being socketed in the second anti-skid device and the 4th anti-skid device on right support post, left support post is connected by retractor device with right support post;
2) regulate the distance between left support post and the right support post of anti-deformation bracket, the position of in the extremely line of perforations 100mm of the manhole of plate until left support post and right support post are kept at a distance respectively;
3) angle and the length of the first anti-skid device of coarse adjustment anti-deformation bracket, the second anti-skid device, the 3rd anti-skid device, the 4th anti-skid device, until the distance between four anti-skid devices is four limit chord lengths of extremely middle plate, the distortion that in four anti-skid devices constraints extremely, plate produces because of deadweight;
4) extremely middle plate is lifted on anti-deformation bracket;
5) fine setting the first anti-skid device, the second anti-skid device, the 3rd anti-skid device, the 4th anti-skid device, adopts arc model to detect the curvature of extremely middle plate, in the time that the curvature of extremely middle plate reaches the curvature of spherical tank, stops regulating;
6) height of adjusting left support post and right support post, make the top of left support post and right support post be just in time supported on respectively distance extremely in the position of manhole line of perforations 100mm on plate, reduce extremely by left support post and right support post in plate because of the perforate distortion producing of being heated;
7) after having regulated, anti-deformation bracket is installed, carry out extremely middle plate perforate, removal anti-deformation bracket after perforate.
2. the method that prevents the extremely middle plate perforate distortion of spherical tank as claimed in claim 1, is characterized in that: left support post is identical with the structure of right support post, includes base, locking nut, rotating shaft, height regulating rod; Rotating shaft is fixed on base, and locking nut is threaded with rotating shaft, and height regulating rod is positioned at rotating shaft top and is threaded with rotating shaft.
3. the method that prevents the extremely middle plate perforate distortion of spherical tank as claimed in claim 1, it is characterized in that: described retractor device comprises two screw rods and a nut, a screw rod is fixed on the base of left support post, another screw rod is fixed on the base of right support post, between two screw rods, connects by nut.
4. the method that prevents the extremely middle plate perforate distortion of spherical tank as claimed in claim 1, it is characterized in that: the structure of the first anti-skid device, the second anti-skid device, the 3rd anti-skid device, the 4th anti-skid device is identical, include long draw, tightening nut, short rod, steel landing slab, angle steel baffle plate, long draw is socketed in the rotating shaft between base and locking nut, between short rod and long draw, be connected by tightening nut, the end of steel landing slab and short rod is affixed, and angle steel baffle plate is located at a jiao of steel landing slab.
5. the method that prevents the extremely middle plate perforate distortion of spherical tank as described in claim 1 or 4, it is characterized in that: the first anti-skid device, the second anti-skid device, the 3rd anti-skid device, the 4th anti-skid device equal in length, and relatively left support post and right support post symmetrical.
6. the method that prevents the extremely middle plate perforate distortion of spherical tank as claimed in claim 2, is characterized in that: the top of height regulating rod is provided with vulcanie pad.
7. the method that prevents the extremely middle plate perforate distortion of spherical tank as claimed in claim 4, is characterized in that: the interior angle side of angle steel baffle plate is provided with wooden baffle plate.
8. the method that prevents the extremely middle plate perforate distortion of spherical tank as claimed in claim 4, is characterized in that: the lower end of short rod is provided with Universal pulley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210467274.2A CN102922452B (en) | 2012-11-19 | 2012-11-19 | Method for preventing spherical tank medium plate from deforming during tapping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210467274.2A CN102922452B (en) | 2012-11-19 | 2012-11-19 | Method for preventing spherical tank medium plate from deforming during tapping |
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| Publication Number | Publication Date |
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| CN102922452A CN102922452A (en) | 2013-02-13 |
| CN102922452B true CN102922452B (en) | 2014-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210467274.2A Active CN102922452B (en) | 2012-11-19 | 2012-11-19 | Method for preventing spherical tank medium plate from deforming during tapping |
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| CN113512637A (en) * | 2021-07-13 | 2021-10-19 | 内蒙古北方重型汽车股份有限公司 | Anti-deformation device for rear tailstock and using method thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB998731A (en) * | 1960-09-01 | 1965-07-21 | British Oxygen Co Ltd | Improvements in or relating to workholders having roller beds |
| SU1189643A1 (en) * | 1983-04-29 | 1985-11-07 | Предприятие П/Я Г-4561 | Movable support |
| JPS6411744A (en) * | 1987-07-03 | 1989-01-17 | Hitachi Ltd | Workpiece holding device |
| CN201208690Y (en) * | 2008-06-02 | 2009-03-18 | 沈云德 | Automobile front axle-sequent welding clamp |
| CN101733657B (en) * | 2009-12-17 | 2011-12-21 | 无锡透平叶片有限公司 | Improved auxiliary jacking mechanism for five-axis rotary machining blade profiles |
| CN102632405B (en) * | 2012-05-02 | 2015-03-25 | 南车戚墅堰机车有限公司 | Device for machining inclined plane and inclined plane hole of box body part |
| CN102729179B (en) * | 2012-07-05 | 2014-05-07 | 浙江大学 | Tooling compensation device and method for balancing machining deformation of wall panel in hole making process |
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