CN108890167A - The manufacture craft of large-scale tower cylinder - Google Patents
The manufacture craft of large-scale tower cylinder Download PDFInfo
- Publication number
- CN108890167A CN108890167A CN201811092133.0A CN201811092133A CN108890167A CN 108890167 A CN108890167 A CN 108890167A CN 201811092133 A CN201811092133 A CN 201811092133A CN 108890167 A CN108890167 A CN 108890167A
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- removal
- length
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 30
- 238000003466 welding Methods 0.000 claims abstract description 23
- 238000012545 processing Methods 0.000 claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims description 29
- 239000010959 steel Substances 0.000 claims description 29
- 238000004321 preservation Methods 0.000 claims description 8
- 229920000742 Cotton Polymers 0.000 claims description 7
- 238000009659 non-destructive testing Methods 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 6
- 238000012797 qualification Methods 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a kind of manufacture crafts of large-scale tower cylinder, include the following links：First link makes several shell rings；Second link makes several sections, and each section, which is stacked by several shell rings according to typesetting figure, to be formed；Third link, make several closure segment cylinders, each closure segment cylinder is welded according to typesetting figure split by several cylinder sections droped to the ground and is formed, and the length of each closure segment cylinder is less than or equal to the receiving length of stress-removal furnace, and each closure segment cylinder is sent into stress-removal furnace and carries out stress-removal processing；4th link, all closure segment cylinders for completing stress-removal processing carry out closing up welding, close up the seam that closes up that welding is formed and carry out stress-removal processing using stress-removal tooling, entire cylinder completes.The advantage of the invention is that：Simple and practical in structure, cost of manufacture is cheap, and applicability is wide, solves the problems, such as the stress-removal processing of the circular weld on large-size cylinder body.
Description
Technical field
The present invention relates to production of pressure container equipment technical fields, and in particular to large-scale tower cylinder processing technology.
Background technique
Tower is usually columnar process equipment.The length of tower barrel is very long, and the length of large-scale tower barrel is past
Toward at 50 meters or more.Tower barrel is the key that tower equipment production.
Summary of the invention
Problem to be solved of the present invention is：A kind of manufacture craft of large-scale tower cylinder is provided, can effectively be ensured
Form the quality of rear cylinder body.
To solve the above problems, the technical solution adopted by the present invention is that：The manufacture craft of large-scale tower cylinder, including it is following
Link：First link, makes several shell rings, and the height of each shell ring is determined according to typesetting figure；The making step packet of each shell ring
It includes：One, the length of run of a shell ring is divided into several equal part length, if being then made according to equal part length and height blanking
The block number of dry block steel plate, steel plate is identical as the number that shell ring length of run is divided equally, and the length of every block of steel plate is an equal part length,
The width of every block of steel plate is the height of a shell ring；The width of every block of steel plate reserves the weld shrinkage of 2mm；Two, in every block of steel
The surrounding of plate processes the groove of welding；Three, veneer reeling machine rolls to obtain arc panel on every block of steel plate；Four, in horizontal datum level
On draw reference line, benchmark curvature of a curve is consistent with cylinder curvature, then by each arc panel according to reference line carry out split；Five,
The vertical piece formed to arc panel split is vertically welded, and such as quantity of vertical piece is odd number, then all vertical pieces
It welds simultaneously；If the quantity of vertical piece is even number, then it is located at the vertical piece of a pair of same diametrically and welds in pairs, successively
Welding is completed；After carrying out non-destructive testing qualification to soldered vertical weld seam, a shell ring completes；Second link, system
Make several sections, each section, which is stacked by several shell rings according to typesetting figure, to be formed, and the making step of each section includes：One, exist
It is placed in a nethermost shell ring and holds round tooling, an interim lifting lug is then welded on the lateral wall of the shell ring, is connect
A shell ring is superimposed on the shell ring, the arrangement of vertical weld seam of shell ring when being superimposed on upper and lower adjacent shell ring is according to typesetting
Figure determines that four plumb lines are arranged in the outside at the top of the shell ring being located above, and circumferentially 90 degree of intervals are arranged four plumb lines,
So that it is guaranteed that the straightness of the shell ring stacked, pre-fixes between upper and lower adjacent cylindrical section securely；Shell ring is stacked gradually to complete one
A section is also provided in a shell ring of the top and holds round tooling, and also welding is faced on the outer wall of the shell ring of the top
When lifting lug；Two, as crane, the cylinder section by made from is droped to the ground, and crane lifting is outside two shell rings of the bottom and top of each section
Interim lifting lug on, the cylinder section after droping to the ground is placed on turning rolls, using turning rolls roll cylinder section, thus to every in cylinder section
The synchronous welding of annular piece, circular weld non-destructive testing qualification the latter cylinder section complete；Third link makes several close up
Section cylinder, each closure segment cylinder are welded according to typesetting figure split by several cylinder sections droped to the ground and are formed, each closure segment cylinder
Length is less than or equal to the receiving length of stress-removal furnace, and each closure segment cylinder is sent into stress-removal furnace and carries out stress-removal processing；The
Four links, all closure segment cylinders for completing stress-removal processing carry out closing up welding, close up the seam that closes up that welding is formed and use
Stress-removal tooling carries out stress-removal processing, and entire cylinder completes.
Further, the manufacture craft of large-scale tower cylinder above-mentioned, wherein in the first step of the first link, by one
The length of run of a shell ring is divided into three or four equal part length.
Further, the manufacture craft of large-scale tower cylinder above-mentioned, wherein in the first step of the first link, control
Length, width, the cornerwise tolerance of every block of steel plate, which are respectively less than, is equal to 1mm.
Further, the manufacture craft of large-scale tower cylinder above-mentioned, wherein in the second step of the first link, every
The surrounding of block steel plate processes the groove of welding, and the straightness deviation for controlling the root face of the groove in every piece of steel plate length direction is small
In equal to 1mm.
Further, the manufacture craft of large-scale tower cylinder above-mentioned, wherein in the four steps of the first link, in advance
Annular reference platform is built, the top surface level of reference platform is to form horizontal datum level.
Further, the manufacture craft of large-scale tower cylinder above-mentioned, wherein phase up and down in the first step of the second link
Between adjacent shell ring pre-fix including：It is fixed between upper and lower adjacent cylindrical section by backing welding, it is then equal outside annular piece
The fixed attachment strap in even interval, the both ends of every block of attachment strap are separately fixed on the shell ring of annular piece or more two sides, and fixed attachment strap is circumferential
Every 30 ° of intervals setting.
Further, the manufacture craft of large-scale tower cylinder above-mentioned, wherein in the 4th link, the stress-removal work
The structure of dress includes：The structure of a pair of of stress-removal component, each stress-removal component includes：Braced frame, it is solid in braced frame
Surely semi-circular recesses are provided with, heat tape is fixedly installed in semi-circular recesses, the heat tape is connected with temperature control box
It connects；A pair of of stress-removal component can be drawn close from the two sides for closing up seam respectively, until a pair of of semi-circular recesses is made to be combined to form one
Circular groove closes up outside weldering so that the heat tape in circular groove is coated on.
Further, the manufacture craft of large-scale tower cylinder above-mentioned, wherein the semicircle in each stress-removal component
It is filled out in groove equipped with heat-preservation cotton, the heat tape is laid in heat-preservation cotton, the semi-circular recesses in each stress-removal component
Oral area interval be fixedly installed several pressing plates, pressing plate fixes heat tape.
It is an advantage of the invention that：The production of large-scale tower cylinder is realized, the length of the large-scale tower cylinder is reachable
50 meters or more, which not only effectively ensures the processing quality of tower barrel, also effectively reduces processing cost.
Detailed description of the invention
Fig. 1 is the structural representation of stress-removal tooling used in the manufacture craft of large-scale tower cylinder of the present invention
Figure.
Fig. 2 is the schematic cross-sectional view in the direction A-A in Fig. 1.
Fig. 3 is the structural schematic diagram of braced frame in Fig. 1.
Specific embodiment
The following further describes the present invention in detail with reference to the accompanying drawings and preferred embodiments.
The manufacture craft of large-scale tower cylinder, includes the following links.
First link, makes several shell rings, and the height of each shell ring is determined according to typesetting figure.The typesetting figure, namely
Construction drawing when processing and fabricating, when typesetting G- Design, have comprehensively considered nozzle position and process equipment etc. in equipment barrel
Factor.
The making step of each shell ring includes：One, the length of run of a shell ring is divided into several equal part length, then
Several blocks of steel plates are made according to equal part length and height blanking, the block number of steel plate is identical as the number that shell ring length of run is divided equally,
The length of every block of steel plate is an equal part length, and the width of every block of steel plate is the height of a shell ring.In order to reduce vertical piece
Quantity, the length of run of a usual shell ring is divided into three or four equal part length.Consider that welding forming will lead to device cartridge
Body is shunk, therefore the width of every block of steel plate reserves the weld shrinkage of 2mm, while controlling the length of every block of steel plate, width, diagonal
The tolerance of line is less than or equal to 1mm.Two, the groove of welding is processed in the surrounding of every block of steel plate, controls every piece in the present embodiment
The straightness deviation of the root face of the groove in steel plate length direction is less than or equal to 1mm.Three, veneer reeling machine on every block of steel plate is rolled into obtain arc
Shape plate.In order to ensure the molding effect of arc panel, can a bit of arc panel template for meeting curvature requirement of pre-production, every piece of volume
Manufactured arc panel is compared with arc panel template, it is ensured that gap of the arc panel between arc panel template is less than or equal to
3mm.Four, reference platform is built in advance, and the top surface level of reference platform is to form horizontal datum level.In horizontal datum level
On draw reference line, benchmark curvature of a curve is consistent with cylinder curvature, then by each arc panel according to reference line carry out split.Five,
The vertical piece formed to arc panel split is vertically welded, and such as quantity of vertical piece is odd number, then all vertical pieces
It welds simultaneously；If the quantity of vertical piece is even number, then it is located at the vertical piece of a pair of same diametrically and welds in pairs, successively
Welding is completed；After soldered vertical weld seam carries out non-destructive testing qualification, a shell ring completes.Above-mentioned non-destructive testing
It generally includes：Ultrasound examination, ray detection, Liquid penetrant testing, Magnetic testing etc., can select according to actual needs it is one of or
It is several to be detected.
Second link makes several sections, and each section, which is stacked by several shell rings according to typesetting figure, to be formed.Each section
Making step includes：One, tooling is held round being located to place in a nethermost shell ring, the structure for holding round tooling has very much, logical
Often all include：Circular ring shape holds round bracket, and the even circumferential for holding round bracket around circular ring shape is arranged at intervals with several support components, support
Component is arranged in pairs, each pair of support component be respectively positioned on it is same diametrically the length of each support component can be adjusted radially,
The outer end of each support component is support block.Tooling support will be held round on shell ring inner wall, thus effectively prevent shell ring by
It is deformed after power.
Then an interim lifting lug is welded on the lateral wall of the shell ring, interim lifting lug, which is welded on, holds round tooling support position
On the outer wall of the corresponding shell ring in place, a shell ring is then superimposed on the shell ring, when shell ring is superimposed on upper and lower adjacent shell ring
The arrangement of vertical weld seam determine that outside at the top of the shell ring being located above is arranged four plumb lines according to typesetting figure, four
Plumb line circumferentially 90 degree of intervals setting pre-fixes jail between upper and lower adjacent cylindrical section so that it is guaranteed that the straightness of the shell ring stacked
Gu.In order to ensure the reliability pre-fixed, pre-fixed described in the present embodiment including：By beating between upper and lower adjacent cylindrical section
Back welding is fixed, and then uniform intervals fix attachment strap outside annular piece, and the both ends of every block of attachment strap are fixed on annular piece
On the outer wall of the shell ring of lower two sides, the circumferentially every 30 ° of intervals setting of attachment strap.Shell ring is stacked gradually to complete a cylinder section, is located at
Setting holds round tooling in one shell ring of the top, and interim lifting lug is welded on the outer wall of the shell ring of the top.Two, by hanging
Vehicle drops to the ground cylinder section obtained, and crane lifting crouches on the interim lifting lug outside two shell rings of the bottom and top of each section
Cylinder section after is placed on turning rolls, rolls cylinder section using turning rolls, is applied to synchronize to every annular piece in cylinder section
Weldering, carries out non-destructive testing qualified the latter cylinder section to circular weld and completes.
Third link makes several closure segment cylinders, and each closure segment cylinder is by several cylinder sections droped to the ground according to typesetting figure
Split welds to be formed, and the length of each closure segment cylinder is less than or equal to the receiving length of stress-removal furnace, by each closure segment cylinder
It is sent into stress-removal furnace and carries out stress-removal processing, cut off the interim lifting lug on closure segment cylinder before stress-removal processing.
4th link, all closure segment cylinders for completing stress-removal processing carry out closing up welding, close up what welding was formed
Close up seam and stress-removal processing is carried out using stress-removal tooling, entire cylinder completes.In the present embodiment, the knot of stress-removal tooling
Structure includes：The structure of a pair of of stress-removal component 1, each stress-removal component 1 includes：Braced frame 11, for the ease of movement, branch
The bottom of support frame frame 11 is provided with idler wheel, is not drawn into figure, and semi-circular recesses 12 are fixedly installed in braced frame 11, semicircle
Heat tape 2 is fixedly installed in groove 12, the heat tape 2 is connected with temperature control box.In order to realize preferable heat preservation
Effect simultaneously ensures that heat tape 2 can come into full contact with the seam 51 that closes up on cylinder 5, in the present embodiment in each stress-removal component 1
Semi-circular recesses 12 in fill out equipped with heat-preservation cotton 3, heat tape 2 is laid in heat-preservation cotton 3, the electricity being laid in heat-preservation cotton 3
Heating tape 2 is located at the oral area of semi-circular recesses 12.In addition, in order to fix heat tape 2, each stress-removal component 1 well
In the oral area intervals of semi-circular recesses 12 be fixedly installed several pressing plates 4, heat tape 2 is fixed on semicircle recessed by pressing plate 4
The oral area of slot 12.The stress-removal tooling it is simple and practical in structure, cost of manufacture is cheap, and applicability is wide, efficiently solves beyond disappearing
Stress heat size receive length cylinder on circular weld stress-removal processing the problem of, ensure that the processing quality of equipment, simultaneously
Reduce the cost of manufacture of equipment.
The advantage of the invention is that：The production of large-scale tower cylinder is realized, the length of the large-scale tower cylinder can
Up to 50 meters or more, which not only effectively ensures the processing quality of tower barrel, also effectively reduces processing cost.
Claims (8)
1. the manufacture craft of large-scale tower cylinder, includes the following links：First link makes several shell rings, the height of each shell ring
Degree is determined according to typesetting figure；The making step of each shell ring includes：One, the length of run of a shell ring is divided into several equal parts
Then several blocks of steel plates are made according to equal part length and height blanking in length, what the block number and shell ring length of run of steel plate were divided equally
Number is identical, and the length of every block of steel plate is an equal part length, and the width of every block of steel plate is the height of a shell ring；Every block of steel plate
Width reserve 2mm weld shrinkage；Two, the groove of welding is processed in the surrounding of every block of steel plate；Three, on every block of steel plate
Veneer reeling machine rolls to obtain arc panel；Four, reference line being drawn on horizontal datum level, benchmark curvature of a curve is consistent with cylinder curvature,
Then each arc panel is subjected to split according to reference line；Five, the vertical piece formed to arc panel split is vertically welded, such as
The quantity of vertical piece is odd number, then all vertical pieces weld simultaneously；If the quantity of vertical piece is even number, then it is located at same
The vertical piece of a pair of item diametrically welds in pairs, and successively welding is completed；Soldered vertical weld seam is carried out non-destructive testing
After qualification, a shell ring completes；Second link makes several sections, and each section is by several shell rings according to typesetting figure heap
Folded to be formed, the making step of each section includes：One, be located at a nethermost shell ring in place hold round tooling, then exist
An interim lifting lug is welded on the lateral wall of the shell ring, and a shell ring, shell ring upper and lower phase when being superimposed then are superimposed on the shell ring
The arrangement of vertical weld seam on adjacent shell ring determines that four lead are arranged in the outside at the top of the shell ring being located above according to typesetting figure
Vertical line, the circumferentially 90 degree of intervals setting of four plumb lines, so that it is guaranteed that the straightness of the shell ring stacked, upper and lower adjacent cylindrical section it
Between pre-fix securely；Shell ring is stacked gradually to complete a cylinder section, is also provided in a shell ring of the top and holds round work
Dress, and interim lifting lug is also welded on the outer wall of the shell ring of the top；Two, as crane, the cylinder section by made from is droped to the ground, and crane is hung
On the interim lifting lug outside two shell rings of the bottom and top of each section, the cylinder section after droping to the ground is placed on turning rolls,
Cylinder section is rolled using turning rolls, so that welding is synchronized to every annular piece in cylinder section, after circular weld non-destructive testing is qualified
One cylinder section completes；Third link, makes several closure segment cylinders, each closure segment cylinder by several cylinder sections droped to the ground by
Phototypesetting domain split welds to be formed, and the length of each closure segment cylinder is less than or equal to the receiving length of stress-removal furnace, by each conjunction
Hold together section cylinder and is sent into the progress stress-removal processing of stress-removal furnace；4th link completes all closure segment cylinders of stress-removal processing
It carries out closing up welding, closes up the seam that closes up that welding is formed and stress-removal processing is carried out using stress-removal tooling, entire cylinder has made
At.
2. the manufacture craft of large-scale tower cylinder according to claim 1, it is characterised in that：The first step of first link
In, the length of run of a shell ring is divided into three or four equal part length.
3. the manufacture craft of large-scale tower cylinder according to claim 1, it is characterised in that：The first step of first link
In, length, width, the cornerwise tolerance for controlling every block of steel plate, which are respectively less than, is equal to 1mm.
4. the manufacture craft of large-scale tower cylinder according to claim 1, it is characterised in that：The second step of first link
In, the groove of welding is processed in the surrounding of every block of steel plate, controls the straight line of the root face of the groove in every piece of steel plate length direction
It spends deviation and is less than or equal to 1mm.
5. the manufacture craft of large-scale tower cylinder according to claim 1, it is characterised in that：The four steps of first link
In, annular reference platform is built in advance, and the top surface level of reference platform is to form horizontal datum level.
6. the manufacture craft of large-scale tower cylinder according to claim 1, it is characterised in that：The first step of second link
In between neighbouring shell ring pre-fix including：It is fixed between upper and lower adjacent cylindrical section by backing welding, then in annular
The fixed attachment strap of the outer uniform intervals of piece, the both ends of every block of attachment strap are separately fixed on the shell ring of annular piece or more two sides, fixed
The circumferentially every 30 ° of intervals setting of attachment strap.
7. the manufacture craft of large-scale tower cylinder according to claim 1 or 2 or 3 or 4 or 5 or 6, it is characterised in that：The
In four links, the structure of the stress-removal tooling includes：The structure of a pair of of stress-removal component, each stress-removal component is wrapped
It includes：Braced frame is fixedly installed semi-circular recesses in braced frame, heat tape, institute is fixedly installed in semi-circular recesses
The heat tape stated is connected with temperature control box；A pair of of stress-removal component can be drawn close from the two sides for closing up seam respectively, until making one
One circular groove is combined to form to semi-circular recesses, is closed up outside weldering so that the heat tape in circular groove is coated on.
8. the manufacture craft of large-scale tower cylinder according to claim 7, it is characterised in that：In each stress-removal component
It is filled out in semi-circular recesses equipped with heat-preservation cotton, the heat tape is laid in heat-preservation cotton, the semicircle in each stress-removal component
The oral area interval of connected in star is fixedly installed several pressing plates, and pressing plate fixes heat tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811092133.0A CN108890167A (en) | 2018-09-19 | 2018-09-19 | The manufacture craft of large-scale tower cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811092133.0A CN108890167A (en) | 2018-09-19 | 2018-09-19 | The manufacture craft of large-scale tower cylinder |
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| Publication Number | Publication Date |
|---|---|
| CN108890167A true CN108890167A (en) | 2018-11-27 |
Family
ID=64360089
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811092133.0A Pending CN108890167A (en) | 2018-09-19 | 2018-09-19 | The manufacture craft of large-scale tower cylinder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111136429A (en) * | 2020-01-13 | 2020-05-12 | 海洋石油工程（青岛）有限公司 | Dimension control process for prefabricating single-point mooring cone structure |
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Application publication date: 20181127 |