CN108098276A - The production method that power station oxygen-eliminating device HP heater drainage device kidney slot is taken over - Google Patents
The production method that power station oxygen-eliminating device HP heater drainage device kidney slot is taken over Download PDFInfo
- Publication number
- CN108098276A CN108098276A CN201711459749.2A CN201711459749A CN108098276A CN 108098276 A CN108098276 A CN 108098276A CN 201711459749 A CN201711459749 A CN 201711459749A CN 108098276 A CN108098276 A CN 108098276A
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- Prior art keywords
- steel plate
- kidney slot
- taken over
- power station
- longitudinal joint
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- 210000003734 kidney Anatomy 0.000 title claims abstract description 61
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 31
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 66
- 239000010959 steel Substances 0.000 claims abstract description 66
- 238000005520 cutting process Methods 0.000 claims abstract description 19
- 238000012545 processing Methods 0.000 claims abstract description 11
- 238000005452 bending Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000005096 rolling process Methods 0.000 claims abstract description 9
- 238000012937 correction Methods 0.000 claims abstract description 5
- 238000003466 welding Methods 0.000 claims abstract description 5
- 238000013461 design Methods 0.000 claims description 12
- 238000005516 engineering process Methods 0.000 claims description 7
- 238000007493 shaping process Methods 0.000 claims description 7
- 238000000748 compression moulding Methods 0.000 claims description 4
- 238000011156 evaluation Methods 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 3
- 238000003801 milling Methods 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 abstract description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 6
- 239000010935 stainless steel Substances 0.000 description 6
- 238000005498 polishing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000009975 flexible effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000013000 roll bending Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Abstract
The production method that power station oxygen-eliminating device HP heater drainage device kidney slot is taken over.Traditional taking over needs line and prebored hole, boring and milling kidney slot, and need repeatedly adjustment, centering, fixed nozzle orientation and angle, time and effort consuming one by one on molding take over when processing waist-shaped hole.The method of the present invention includes to wait to roll into the expansion steel plate Numerical control cutting taken over, cuts out whole kidney slots, on four sides of expansion steel plate vertical, circumferential weld is set to stay retaining wall on slope surplus, then carry out following steps successively：Correction steel plate → processing is indulged, welding equipment longitudinal joint → veneer reeling machine school circle at circumferential weld groove → forcing press pre-bending → veneer reeling machine edge rolling → longitudinal joint groove.The present invention is applied to the making that power station oxygen-eliminating device HP heater drainage device kidney slot is taken over.
Description
Technical field：
The present invention relates to the production methods that a kind of power station oxygen-eliminating device HP heater drainage device kidney slot is taken over.
Background technology：
For a long time, power station single-cylinder type or integral type oxygen-eliminating device（Abbreviation oxygen-eliminating device）Take over internals in HP heater drainage device are usual
It is taken over no matter seamless steel pipe or steel plate roll（Referred to as take over）The size for being all designed with column-row arrangement is long axis 200~248
The big kidney slot of mm, 36~48 mm of short axle or so are as vapor channel, and hole count is up to tens, kidney slot roughness requirements Ra25
~12.5, take over hole wall it is parallel to each other, it is necessary on molding take over one by one line and prebored hole, boring and milling kidney slot, and need
Multiple adjustment, centering, fixed nozzle orientation and angle, time and effort consuming.219~650 mm of tube diameter, 8~25 mm of thickness, length
Spend 1500~4000mm.Cause power station oxygen-eliminating device HP heater drainage device kidney slot take over low production efficiency, manufacturing expense big, economical
Of poor benefits, design structure and manufacturing technology fall behind.
The content of the invention：
In order to overcome the above problem existing in the prior art, the object of the present invention is to provide a kind of power station oxygen-eliminating device HP heater drainage dresses
Put the production method that kidney slot is taken over.
Above-mentioned purpose is realized by following technical scheme：
The production method that a kind of power station oxygen-eliminating device HP heater drainage device kidney slot is taken over will be waited to roll into the expansion steel plate use taken over
Numerical control cutting cuts out whole kidney slots, on four sides of expansion steel plate vertical, circumferential weld is set to stay retaining wall on slope surplus, then successively
Carry out following steps：Correction steel plate → processing is indulged, filled at circumferential weld groove → forcing press pre-bending → veneer reeling machine edge rolling → longitudinal joint groove
Weld longitudinal joint → veneer reeling machine school circle；
The axial cross section taken over will be rolled and be divided into four quadrants, set successively in the direction of the clock four quadrant lines of demarcation I,
IIth, III, IV, wherein quadrant line of demarcation III passes through the center line of cloth bore region, and it is suitable that take over longitudinal joint is located relative to quadrant line of demarcation I
Clockwise deviates at -45 ° to 45 ° of position, and kidney slot roughness is Ra50, and expansion steel plate is by central diameter expanded view at longitudinal joint
Expansion；The kidney slot hole wall processed on steel plate tablet is parallel to each other, and rolls big on the outside of the lateral length of kidney slot on rear tube
In inside.
The production method that the power station oxygen-eliminating device HP heater drainage device kidney slot is taken over, due to steel plate before rolling
Partially perforation, surface of steel plate aperture area regional area are discontinuous, in fact it could happen that hole edge steel plate bending is difficult, straight flange etc. occurs asks
Topic takes forcing press locally to press, changes longitudinal joint orientation technical measures and be subject to, it is necessary to according to true form size and technology evaluation
It solves, it is ensured that roll take over shaping and meet design and use requirement；Roll bending can not be used when tube diameter is smaller, wall thickness is thicker
When machine is molded, using double longitudinal joint compression mouldings, the position of double longitudinal joints is arranged on four quadrant lines of demarcation II and III.
The production method that the power station oxygen-eliminating device HP heater drainage device kidney slot is taken over, expansion steel plate shape and take over waist
Shape hole is disposably machined using the flat digital controlled cutting blanking together simultaneously of steel plate, is had higher roughness requirements to special
Kidney slot 3 cut the method processing of hole+numerical control boring-mill work in advance using numerical control boring-mill work or Numerical control cutting on steel plate tablet；
When connecting pipe length is too long, it is necessary to when more than 2 sections splicing, taking over needs by circumferential weld groove welding to be stayed to connect by spliced map segmentation.
Beneficial effects of the present invention：
1. previous seamless steel pipe is improved to roll and takes over by the present invention, steel pipe buying expenses is saved, gives full play to steel plate and roll connecing
The convenient, flexible property of pipe；And it will take over hole wall design structure innovation parallel to each other and be optimized for taking over what hole wall was angled relative to each other
Design structure stroke hole line, machine will add hole process optimization to be improved to the number hole cutting kidney-shaped on the steel plate blank taken on taking over,
It fundamentally reduces labor intensity, improve production efficiency and economic benefit.When kidney-shaped pore size is bigger, quantity is more, the present invention
The effect for reducing labor intensity, improving production efficiency and economic benefit it is more notable.
Present invention saves stainless-steel seamless pipe purchase cost and cutter loss, manufacturing process is simplified, saves and " draws
Kidney slot line, clamping fix workpiece and adjustment, bore hole, polishing burr " etc. processes, manufacture man-hour taken over when being 95 small/2
（About 0.5 ten thousand yuan of total manufacturing expense）, it will be apparent that improve production efficiency and economic benefit.
Due to steel plate before rolling comparatively dense ground partially perforation, surface of steel plate aperture area regional area is discontinuous, meeting
It is a large amount of hole edge steel plate bending difficulty occur, the problems such as straight flange occur, therefore to solve this problem, take over longitudinal joint position of the invention
It installs at the position for being set to and deviateing 12 ° clockwise compared with quadrant line of demarcation I, greatly reduces hole edge steel plate bending and be stranded
It is difficult, there is the probability of the problems such as straight flange, forcing press will only be taken locally to press to ensure to roll and take over shaping and meet design
And requirement.
The hole wall of the waist-shaped hole of the present invention causes waist-shaped hole section for the tubaeform of interior narrow outer width, to be conducive to fluid working substance
Circulation and diffusion, dielectric distribution eliminates pulsating nature after the horn-like diverging of fluid of injection, is integrally more uniformly distributed, effect is good.Through
The waist-shaped hole impulse- free robustness of Numerical control cutting, and there is the burr that can not be rejected in the waist-shaped hole obtained by traditional machining, influence work
The flowing of matter.
Description of the drawings：
Attached drawing 1 is the expanded view for waiting to roll into the expansion steel plate taken over that the present invention completes kidney-shaped hole machined.In figure, 1 is expansion
Steel plate, 2 be kidney slot, and 3 stay retaining wall on slope surplus for longitudinal joint.
Attached drawing 2 is according to the sectional view taken over made of production method of the present invention.
Attached drawing 3 is 2 axial view of attached drawing.It is chequered with black and white in the lower half annulus taken in figure, black portions representative profile,
It is kidney slot to be clipped in the white portion among two black portions, and 4 be longitudinal joint.
Specific embodiment：
Embodiment 1：
The production method that a kind of power station oxygen-eliminating device HP heater drainage device kidney slot is taken over will be waited to roll into the expansion steel plate use taken over
Numerical control cutting cuts out whole kidney slots, on four sides of expansion steel plate vertical, circumferential weld is set to stay retaining wall on slope surplus, then successively
Carry out following steps：Correction steel plate → processing is indulged, filled at circumferential weld groove → forcing press pre-bending → veneer reeling machine edge rolling → longitudinal joint groove
Weld longitudinal joint → veneer reeling machine school circle；
The axial cross section taken over will be rolled and be divided into four quadrants, set successively in the direction of the clock four quadrant lines of demarcation I,
IIth, III, IV, wherein quadrant line of demarcation III passes through the center line of cloth bore region, and it is suitable that take over longitudinal joint is located relative to quadrant line of demarcation I
Clockwise deviates at -45 ° to 45 ° of position, and kidney slot roughness is Ra50, and expansion steel plate is by central diameter expanded view at longitudinal joint
Expansion；The kidney slot hole wall processed on steel plate tablet is parallel to each other, and rolls big on the outside of the lateral length of kidney slot on rear tube
In inside, kidney-shaped pore cross section flare.
Embodiment 2：
The production method that power station oxygen-eliminating device HP heater drainage device kidney slot according to embodiment 1 is taken over, since steel plate is being rolled up
Partially perforation, surface of steel plate aperture area regional area are discontinuous before system, in fact it could happen that hole edge steel plate bending is difficult, it is straight to occur
The problems such as side, it is necessary to according to true form size and technology evaluation, takes forcing press locally to press, changes longitudinal joint orientation technology and arrange
It applies and solves, it is ensured that roll take over shaping and meet design and use requirement；It can not be adopted when tube diameter is smaller, wall thickness is thicker
When being molded with veneer reeling machine, using double longitudinal joint compression mouldings, the position of double longitudinal joints is arranged on four quadrant lines of demarcation II and III.
Embodiment 3：
The production method that power station oxygen-eliminating device HP heater drainage device kidney slot according to embodiment 1 or 2 is taken over is unfolded outside steel plate
Shape and take over kidney slot are disposably machined using the flat digital controlled cutting blanking together simultaneously of steel plate, to it is special have it is higher
The kidney slot 3 of roughness requirements cuts hole+numerical control boring-mill work in advance on steel plate tablet using numerical control boring-mill work or Numerical control cutting
Method processing；When connecting pipe length is too long, it is necessary to when more than 2 sections splicing, taking over needs to stay slope by circumferential weld by spliced map segmentation
Mouth is welded to connect.
Embodiment 4：
The production method that power station oxygen-eliminating device HP heater drainage device kidney slot according to embodiment 1 or 2 or 3 is taken over, take over steel
Plate is started to carry out expansion arrangement, take over kidney slot or steel plate kidney slot according to kidney slot orientation angles by longitudinal joint by central diameter expanded view
Roughness be typically no less than Ra50, general quantity it is unlimited and in rectangular region by the regular arrangement of the present invention in ranks；
Steel plate shape and take over kidney slot or steel plate kidney slot are right using the flat digital controlled cutting of steel plate or Numerical control cutting blanking together simultaneously
The special kidney slot for having higher roughness requirements can also use numerical control boring-mill work or Numerical control cutting on steel plate tablet（Number
Control cutting includes plasma cut and NC Flame Cutting）The pre- method processing for cutting hole+numerical control boring-mill work；When connecting pipe length too
, it is necessary to more than 2 sections during splicing, take over needs to be segmented by design of the invention by spliced map, manufacture, assembling length.It takes over typically
Roll-forming；When tube diameter is smaller, wall thickness is thicker to use roll-forming, double longitudinal joints can also be used to be pressed into
Type.
For specific one making case：Take over φ 610 × 16, quantity 2,1800 mm of length, using stainless steel without
Steel pipe is stitched, it is mutually equal to take over kidney slot hole wall by 248 mm short axles of long axis, 48 mm axial directions kidney slot 20, circular hole d16 mono-
Row, kidney slot roughness Ra 12.5.
It needs to be machined kidney slot on taking over according to original design, take over technical process is：Stainless steel jointless steel
610 × 16 blankings of pipe φ → stroke four center lines, kidney slot line, circular hole line → clamping fix workpiece and adjustment → preboring kidney slot two
End circular hole → boring kidney slot → brill d16 circular holes → polishing burr → treat general assembly.
To improve production efficiency, reduction stainless-steel seamless pipe purchase cost and processing charges, reducing cutter consumption, take over
The manufacturing method of the present invention can be used and be processed making, in the case where meeting design, requirement, kidney slot is taken over mainly
Design structure changes：
1st, material is rolled using stainless-steel sheet；
2nd, a take over longitudinal joint is increased, it is 12 ° to determine longitudinal joint orientation angles；
3rd, take over steel plate is increased by central diameter expanded view, steel plate blank dimension 1800mm × 1866mm, take over steel plate is unfolded by central diameter
Figure is started to spread out from weld seam；Kidney slot hole wall is parallel to each other on steel plate tablet；Meanwhile it takes over kidney slot hole wall and is changed to mutually not
It is parallel；
4th, reduce kidney slot roughness and be changed to Ra50, convenient for using Numerical control cutting.
According to invention, steel plate rolls take over technical process and is：1800mm × 1866mm steel plates digital controlling plasma programs
Cutting stock, and cut out whole kidney slots, vertical, circumferential weld stays retaining wall on slope surplus → correction steel plate → processing to indulge, circumferential weld groove →
Forcing press pre-bending → veneer reeling machine edge rolling → welding equipment longitudinal joint → veneer reeling machine school circle.
Due to steel plate, partially perforation, surface of steel plate aperture area regional area are discontinuous before rolling, in fact it could happen that hole
Side steel plate bending is difficult, the problems such as straight flange occurs, it is necessary to according to true form size and technology evaluation, takes forcing press partial points
The special techniques measures such as pressure, change longitudinal joint orientation are solved, it is ensured that are rolled take over shaping and met design and use requirement.When connecing
Pipe diameter is smaller, wall thickness is thicker and when can not use veneer reeling machine shaping, double longitudinal joint compression mouldings can also be used.
It can be seen that the invention saved stainless-steel seamless pipe purchase cost and cutter loss, simplify manufacturing process,
Save " drawing kidney slot line, clamping fixes workpiece and adjustment, bore hole, polishing burr " when processes man-hour 95 is small/2（It is total
About 0.5 ten thousand yuan of manufacturing expense）, it will be apparent that improve production efficiency and economic benefit.
Claims (3)
1. the production method that a kind of power station oxygen-eliminating device HP heater drainage device kidney slot is taken over, it is characterized in that：It will wait to roll into take over
Expansion steel plate Numerical control cutting, cut out whole kidney slots, on four sides of expansion steel plate vertical, circumferential weld set to stay more than retaining wall on slope
Amount, then carries out following steps successively：Correction steel plate → processing is indulged, circumferential weld groove → forcing press pre-bending → veneer reeling machine edge rolling → vertical
Stitch welding equipment longitudinal joint at groove → veneer reeling machine school circle；
The axial cross section taken over will be rolled and be divided into four quadrants, set successively in the direction of the clock four quadrant lines of demarcation I,
IIth, III, IV, wherein quadrant line of demarcation III passes through the center line of cloth bore region, and it is suitable that take over longitudinal joint is located relative to quadrant line of demarcation I
Clockwise deviates at -45 ° to 45 ° of position, and kidney slot roughness is Ra50, and expansion steel plate is by central diameter expanded view at longitudinal joint
Expansion；The kidney slot hole wall processed on steel plate tablet is parallel to each other, and rolls big on the outside of the lateral length of kidney slot on rear tube
In inside.
2. the production method that power station oxygen-eliminating device HP heater drainage device kidney slot according to claim 1 is taken over, it is characterized in that：
Due to steel plate, partially perforation, surface of steel plate aperture area regional area are discontinuous before rolling, in fact it could happen that hole edge steel plate is curved
There is the problems such as straight flange, it is necessary to according to true form size and technology evaluation in bent difficulty, and forcing press is taken locally to press, change
Longitudinal joint orientation technical measures are solved, it is ensured that are rolled take over shaping and met design and use requirement；When tube diameter is smaller, wall
It is thicker and when can not use veneer reeling machine shaping, using double longitudinal joint compression mouldings, the positions of double longitudinal joints is arranged on four quadrants point
Boundary line II and III.
3. the production method that power station oxygen-eliminating device HP heater drainage device kidney slot according to claim 1 or 2 is taken over, feature
It is：Steel plate shape and take over kidney slot is unfolded and cuts blanking together simultaneously using steel plate is flat digital controlled, disposably machines, it is right
The special kidney slot 3 for having a higher roughness requirements on steel plate tablet using numerical control boring-mill work or Numerical control cutting cut in advance hole+
The method processing of numerical control boring-mill work；When connecting pipe length is too long, it is necessary to when more than 2 sections splicing, taking over needs to be segmented by spliced map
By circumferential weld groove welding is stayed to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711459749.2A CN108098276A (en) | 2017-12-28 | 2017-12-28 | The production method that power station oxygen-eliminating device HP heater drainage device kidney slot is taken over |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711459749.2A CN108098276A (en) | 2017-12-28 | 2017-12-28 | The production method that power station oxygen-eliminating device HP heater drainage device kidney slot is taken over |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108098276A true CN108098276A (en) | 2018-06-01 |
Family
ID=62214251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711459749.2A Pending CN108098276A (en) | 2017-12-28 | 2017-12-28 | The production method that power station oxygen-eliminating device HP heater drainage device kidney slot is taken over |
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| CN (1) | CN108098276A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110142008A (en) * | 2019-06-04 | 2019-08-20 | 哈尔滨锅炉厂有限责任公司 | Synthetic tower supports cylinder and manufacturing method |
| CN110340695A (en) * | 2019-07-24 | 2019-10-18 | 中国航发贵州黎阳航空动力有限公司 | The fixture of fan groove is processed on milling machine |
| CN110625193A (en) * | 2019-09-30 | 2019-12-31 | 中国船舶重工集团柴油机有限公司 | Cutting method, system and processing system for air port of cylindrical scavenging air box |
| CN113275841A (en) * | 2021-05-26 | 2021-08-20 | 湖北三江航天江北机械工程有限公司 | Method for processing cylinder of man-hole thin-wall vacuum tank for ship |
| CN114378586A (en) * | 2021-12-27 | 2022-04-22 | 徐素琴 | Machining device and machining process for filtering inner container |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114378586A (en) * | 2021-12-27 | 2022-04-22 | 徐素琴 | Machining device and machining process for filtering inner container |
| CN114378586B (en) * | 2021-12-27 | 2024-02-27 | 陕西海澳特环保科技有限公司 | Processing device and processing technology of filtering liner |
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Application publication date: 20180601 |