CN107052610A - A kind of open-celled structure and boring method on major-diameter thick-wall container casing - Google Patents
A kind of open-celled structure and boring method on major-diameter thick-wall container casing Download PDFInfo
- Publication number
- CN107052610A CN107052610A CN201710448530.6A CN201710448530A CN107052610A CN 107052610 A CN107052610 A CN 107052610A CN 201710448530 A CN201710448530 A CN 201710448530A CN 107052610 A CN107052610 A CN 107052610A
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- China
- Prior art keywords
- straight hole
- bellmouth
- segment
- open
- major
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B35/00—Methods for boring or drilling, or for working essentially requiring the use of boring or drilling machines; Use of auxiliary equipment in connection with such methods
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Manufacture and design field, more particularly to open-celled structure and its boring method on the housing of major-diameter thick-wall container the present invention relates to boilers and pressure vessel.Open-celled structure on the housing of major-diameter thick-wall container, three sections of the open-celled structure point, includes the bellmouth and the 3rd section of straight hole for the optimized design of first paragraph straight hole, second segment being sequentially connected；The first paragraph straight hole connects the outside of the housing, and the second segment bellmouth extends to first paragraph straight hole periphery at a proper angle, and the 3rd section of straight hole connects the inside of the housing.It is an object of the invention to provide the design of the open-celled structure on the housing of major-diameter thick-wall container, to reduce machining amount during perforate to inner walls, and greatly reduce welding job amount and Non-Destructive Testing region, while probability and reduction welding deformation that accordingly reduction weld defect is produced.
Description
Technical field
The present invention relates to the perforate knot in boilers and pressure vessel manufacture field, more particularly to the housing in major-diameter thick-wall container
Structure is designed and boring method.
Background technology
With technological progress and new material, the application of new technology, the applying working condition of boilers and pressure vessel product increasingly becomes
To high parameter is selected, design pressure, design temperature more and more higher, device diameters are also increasing, cause container（Drum）Shell
Body also accordingly thickeies.Major-diameter thick-wall container is always welded with the housing such as drum to be connected inside container with exterior tubing
Adapter, all adapters all by the housing of container perforate, be welded on housing and realize the function of connection.
At present, perforate is all the open-celled structure using two-part on the housing of major-diameter thick-wall container.In this structure
In pattern, one section of straight hole is first processed, then bellmouth is processed by certain inclination angle in the form of straight hole of postponing until connection
Enclosure interior.
Using this structural shape when welding adapter, because bellmouth is longer, enclosure interior is caused to add because of perforate cutting
Work area domain is excessive.Need the part removed using built-up welding completion again during welding adapter, so as to cause the workload of welding non-
Chang great.And when welding adapter, built-up welding completion region easily produces weld defect, the region of heap postwelding Non-Destructive Testing is big, and connects
Pipe is easily deformed when welding.
The content of the invention
It is an object of the invention to provide a kind of open-celled structure on the housing of major-diameter thick-wall container, to reduce welding
Workload, and reduce probability and the Non-Destructive Testing region of weld defect generation.
The present invention is achieved by the following technical solutions：
Open-celled structure on the housing of major-diameter thick-wall container, three sections of the open-celled structure point, including first be sequentially connected
Duan Zhikong, second segment bellmouth and the 3rd section of straight hole；The first paragraph straight hole connects the outside of the housing；The second segment cone
Shape hole two ends are respectively big end and small end, and the small end connects the first paragraph straight hole, and big described 3rd section of the end connection is straight
Hole；The 3rd section of straight hole connects the inside of the housing.
Structure of the present invention has following beneficial effect compared with prior art：
Present invention optimizes the structural shape of perforate, using the open-celled structure of three-stage, the is set in the end of the second bellmouth
Three straight holes so that perforate machining region greatly reduces, so as to reduce built-up welding workload and Non-Destructive Testing region, and reduces
The probability that weld defect is produced.Generally greatly improve welding quality and reduction manufacturing cost.
The preferred scheme of the present invention, wherein, the bus of the second segment bellmouth and the angle of vertical line are 45 °.Adopt
With 45 ° of angle of inclination, it is ensured that welding rod can extend into welding groove bottom during welding, so as to be formed in welding groove bottom
Good welding melt region, it is ensured that groove bottom can fully be penetrated, it is to avoid the generation of weld defect.If angle of inclination
Excessive, then welding groove welding rod melt region is increased, and welding job amount is accordingly increased, and causes manufacturing cost to increase.If tilted
Angle too small, then be easily caused welding groove bottom and be difficult through welding, cause weld defect to produce.
The preferred scheme of the present invention, wherein, at least place is 2mm to the hole depth of the first paragraph straight hole.So can be with
Ensure that welding fluid of the whole welding groove in welding in melt region is not spilt, while 2mm straight flange may finally fuse into again
In welding fluid, it is ensured that welding complete penetraction and fusion in welding.If straight flange is excessive, groove straight flange is difficult to be fused in welding fluid, so as to cause to weld
Connect defect.
The preferred scheme of the present invention, wherein, the length of the bus of the second segment bellmouth=（R *cosα-(r+
2)）/ cos45 °, wherein α is the angle of perforate angle, and the R is housing outer radius；The r is housing inside radius.Calculate
The bus length of bellmouth is based on ensureing the most suitable welding of welding groove, economy most rationally.
The preferred scheme of the present invention, wherein, the first paragraph straight hole, second segment bellmouth and the 3rd section of straight hole are adopted
Processed with boring.Three sector holes are processed using boring, and all add can be disposably completed in the case where not changing processing stations
Work works, and has saved machining period, has reduced processing cost.
The boring method of welding hole is opened on the housing of major-diameter thick-wall container, is comprised the following steps：
1）According to welding hole opening diameter d, housing inside radius r, housing outer radius R, perforate angle angle [alpha]=arcsin is calculated
(d/(2*R)；
2）According to the angle angle [alpha] calculated, draw the length of the bus of the bellmouth of optimization=（R *cosα-(r+2)）/cos
β, the β are the bus of bellmouth and the angle of vertical line；
3）The processing of first paragraph straight hole：First boring processes the first paragraph straight hole of welding hole perforate, the hole of the first paragraph straight hole
At least place is 2 mm to depth；
4）The processing of second segment bellmouth：Welding hole perforate is processed with the angle boring of the bus of bellmouth and vertical line, until boring
The bus length for the second segment bellmouth that knife is processed is the second segment bellmouth bus length after the optimization；
5）The processing of 3rd section of straight hole：Continue the 3rd section of straight hole that boring processing is connected with the end of second segment bellmouth；It is described
The processing of 3rd section of straight hole is untill boring cutter is walked out completely, no longer boring is processed；
The boring processing uses single-blade boring cutter, and cutter head is mounted in knife bar, will by traverse feed according to the size in processed hole
First paragraph straight hole and the 3rd section of straight hole are worked into required size；By transverse direction+long feed, described the of size needed for processing
Two sections of bellmouths.
The inventive method has following beneficial effect compared with prior art：
Open-celled structure is divided into three sections by the present invention：First paragraph straight hole, second segment bellmouth and the 3rd section of straight hole.It is first female to bellmouth
Line length, which is done, to be optimized, and drawing does not influence the most short bus length of welding effect.Cause perforate on the premise of welding quality is ensured
Machining region is reduced as far as possible, so as to farthest reduce built-up welding workload and Non-Destructive Testing region, and is reduced
The probability that weld defect is produced.At least place can ensure whole welding groove in welding to the hole depth of first paragraph straight hole for 2 mm
When melt region in welding fluid do not spill, while 2mm straight flange may finally be fused into welding fluid again, it is ensured that the full weldering of welding
Thoroughly.If straight flange is excessive, groove straight flange is difficult to be fused in welding fluid, so as to cause weld defect occur.The letter of single-blade boring cutter structure
It is single, original axially bored line deflection and small position deviation can be corrected, adaptability is wider.Three sections of perforates are using the processing side postponed
Formula, processing is settled at one go, it is not necessary to which shutdown reduces unnecessary step.
The preferred scheme of the present invention, wherein, described 2）The angle β of the bus of second segment bellmouth and vertical line in step
For 45 ° to 50 °.If β angle too smalls, it is easily caused welding groove bottom and is difficult through welding.45 ° to 50 ° are proper angle.
Major-diameter thick-wall container of the present invention includes drum.
Brief description of the drawings
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description：
Fig. 1 connects the structural representation after welding adapter for the present invention；
Fig. 2 is A-A cross section structure diagrams in Fig. 1 of the present invention；
Fig. 3 is the open-celled structure schematic diagram of unwelded adapter in Fig. 2 of the present invention；
Fig. 4 is open-celled structure partial enlarged drawing in Fig. 3 of the present invention.
Reference：First paragraph straight hole 1, second segment bellmouth 2, the 3rd section of straight hole 3, housing 4, adapter 5, housing outer radius
R, housing inside radius r, perforate angle α, opening diameter d.
Embodiment
Embodiment 1
The open-celled structure on the housing of major-diameter thick-wall container as shown in Fig. 1,2,3 and 4, open-celled structure is circular openings knot
Structure；Open-celled structure includes first paragraph straight hole 1, second segment bellmouth 2 and the 3rd section of straight hole 3 being sequentially connected.First paragraph straight hole 1
At least place is 2mm to length.First paragraph straight hole 1 connects the outside of the housing 4.The two ends of second segment bellmouth 2 be respectively big end and
Small end, small end connection first paragraph straight hole 1, the 3rd section of straight hole 3 of big end connection.3rd section of straight hole 3 connects the inside of housing 4.Second
Section bellmouth 2 bus and vertical line angle β be 45 °.At least place is 2mm to the hole depth of first paragraph straight hole 1.
Bus length is calculated in the following manner：
According to welding hole opening diameter d, housing inside radius r, housing outer radius R, angle=arcsin of perforate angle α is calculated
(d/(2*R).As shown in figure 3, doing casing annular section to the center of open-celled structure.On ring section central point and perforate section
Perforate starting point line, and the angle of the center line of open-celled structure is perforate angle α.
Afterwards according to the perforate angle α angle that calculates, draw the length of the bus of bellmouth=（R *cosα-(r+2)）/
cos45°.As shown in Fig. 2,3 and 4, the bus of bellmouth was that the section of bellmouth is done at the center of bellmouth, and formation one is trapezoidal
Structure.The length of trapezoidal waist is the length of the bus of bellmouth.
First paragraph straight hole 1, second segment bellmouth 2 and the 3rd section of straight hole 3 are processed using boring.
Fig. 2 is to weld the schematic diagram after adapter 5 by the way of the open-celled structure of the present invention uses built-up welding completion.Thus may be used
Know, relative to the open-celled structure using two-part, the open-celled structure of three-stage greatly optimizes open-celled structure, and it is unnecessary to reduce
Perforate processing cutting zone.So as to reduce built-up welding workload and Non-Destructive Testing region, and reduce weld defect generation
Probability.Generally greatly improve welding quality and reduction manufacturing cost.
Embodiment 2
The angle β of the bus of second segment bellmouth 2 in embodiment 1 and vertical line is 45 ° and replaces with 50 °.So as to the cone calculated
Shape hole bus length is（R *cosα-(r+2)）/cos50°.Three sections of perforates are processed in the way of boring is processed afterwards.
Above-described is only the preferred embodiment of the present invention, it is noted that for those skilled in the art,
Without departing from the structure of the invention, several modifications and improvements can also be made, these should also be considered as the guarantor of the present invention
Scope is protected, these effects and practical applicability for implementing all without the influence present invention.
Claims (7)
1. a kind of open-celled structure on major-diameter thick-wall container casing, it is characterised in that：Three sections of the open-celled structure point, including
First paragraph straight hole, second segment bellmouth and the 3rd section of straight hole being sequentially connected；The first paragraph straight hole connects the outer of the housing
Portion；The two ends of the second segment bellmouth are respectively big end and small end, and the small end connects the first paragraph straight hole, the big end
Connect the 3rd section of straight hole；The 3rd section of straight hole connects the inside of the housing.
2. a kind of open-celled structure on major-diameter thick-wall container casing as claimed in claim 1, it is characterised in that described the
The bus of two sections of bellmouths and the angle of vertical line are 45 °.
3. a kind of open-celled structure on major-diameter thick-wall container casing as claimed in claim 2, it is characterised in that described the
At least place is 2 mm to the hole depth of one section of straight hole.
4. a kind of open-celled structure on major-diameter thick-wall container casing as claimed in claim 3, it is characterised in that described the
The length of the bus of two sections of bellmouths=（R* cosα-(r+2)）/ cos45 °, wherein α is the angle of perforate angle, and the R is shell
External radius；The r is housing inside radius.
5. a kind of open-celled structure on major-diameter thick-wall container casing as described in claim 1-4 is any, it is characterised in that
The first paragraph straight hole, second segment bellmouth and the 3rd section of straight hole are processed using boring.
6. a kind of boring method on major-diameter thick-wall container casing, it is characterised in that comprise the following steps：
1）According to welding hole opening diameter d, housing inside radius r, housing outer radius R, perforate angle α=arcsin (d/ are calculated
(2*R)；
2）According to the perforate angle α calculated, draw the length of the bus of the second segment bellmouth of optimization=（R *cosα-(r+
2)）/ cos β, the β are the bus of bellmouth and the angle of vertical line；
3）The processing of first paragraph straight hole：First boring processes the first paragraph straight hole of welding hole perforate, the hole of the first paragraph straight hole
At least place is 2 mm to depth；
4）The processing of second segment bellmouth：Welding hole perforate is processed with the angle boring of the bus of second segment bellmouth and vertical line,
Second segment bellmouth bus length after the bus length for the second segment bellmouth that boring cutter is processed is the optimization；
5）The processing of 3rd section of straight hole：Continue the 3rd section of straight hole that boring processing is connected with the end of second segment bellmouth；It is described
3rd section of straight hole is worked into untill boring cutter walks out completely；
The boring processing uses single-blade boring cutter, and cutter head is mounted in knife bar, will by traverse feed according to the size in processed hole
First paragraph straight hole and the 3rd section of straight hole are worked into required size；By transverse direction+long feed, described the of size needed for processing
Two sections of bellmouths.
7. a kind of boring method on major-diameter thick-wall container casing as claimed in claim 6, it is characterised in that described 2）
The angle β of the bus of second segment bellmouth and vertical line is 45 ° to 50 ° in step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710448530.6A CN107052610B (en) | 2017-06-14 | 2017-06-14 | Hole opening structure and hole opening method on large-diameter thick-wall container shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710448530.6A CN107052610B (en) | 2017-06-14 | 2017-06-14 | Hole opening structure and hole opening method on large-diameter thick-wall container shell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107052610A true CN107052610A (en) | 2017-08-18 |
| CN107052610B CN107052610B (en) | 2022-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710448530.6A Active CN107052610B (en) | 2017-06-14 | 2017-06-14 | Hole opening structure and hole opening method on large-diameter thick-wall container shell |
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| Country | Link |
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| CN (1) | CN107052610B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114906499A (en) * | 2021-02-07 | 2022-08-16 | 中国石油化工股份有限公司 | Manhole structure and petroleum storage tank |
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| GB527578A (en) * | 1939-04-15 | 1940-10-11 | Aerolex Ltd | Improvements in connectors or clamps for tubes or rods |
| GB597215A (en) * | 1943-04-27 | 1948-01-21 | Weatherhead Co | Improvements in or relating to hose end fittings |
| GB1439523A (en) * | 1972-07-06 | 1976-06-16 | Bopp & Reuther Gmbh | Tapping nipples for pipes |
| DE19630029A1 (en) * | 1996-07-25 | 1998-01-29 | Manibs Spezialarmaturen | Valve tapping fitting for plastics pipelines under pressure |
| CN102040059A (en) * | 2009-10-21 | 2011-05-04 | 西安轨道交通装备有限责任公司 | Tank car manhole and production technology thereof |
| CN103111769A (en) * | 2013-03-04 | 2013-05-22 | 长沙理工大学 | Novel process method for reducing welding deformation of oil inlet and outlet of hydraulic oil cylinder |
| CN104565654A (en) * | 2013-10-25 | 2015-04-29 | 前泽化成工业株式会社 | Branch joint |
| CN205350703U (en) * | 2016-01-29 | 2016-06-29 | 北京市燃气集团有限责任公司 | Gas pipeline tapping shutoff sealing pipe fitting |
| CN207139127U (en) * | 2017-06-14 | 2018-03-27 | 广州广重企业集团有限公司 | A kind of open-celled structure on major-diameter thick-wall container casing |
-
2017
- 2017-06-14 CN CN201710448530.6A patent/CN107052610B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB527578A (en) * | 1939-04-15 | 1940-10-11 | Aerolex Ltd | Improvements in connectors or clamps for tubes or rods |
| GB597215A (en) * | 1943-04-27 | 1948-01-21 | Weatherhead Co | Improvements in or relating to hose end fittings |
| GB1439523A (en) * | 1972-07-06 | 1976-06-16 | Bopp & Reuther Gmbh | Tapping nipples for pipes |
| DE19630029A1 (en) * | 1996-07-25 | 1998-01-29 | Manibs Spezialarmaturen | Valve tapping fitting for plastics pipelines under pressure |
| CN102040059A (en) * | 2009-10-21 | 2011-05-04 | 西安轨道交通装备有限责任公司 | Tank car manhole and production technology thereof |
| CN103111769A (en) * | 2013-03-04 | 2013-05-22 | 长沙理工大学 | Novel process method for reducing welding deformation of oil inlet and outlet of hydraulic oil cylinder |
| CN104565654A (en) * | 2013-10-25 | 2015-04-29 | 前泽化成工业株式会社 | Branch joint |
| CN205350703U (en) * | 2016-01-29 | 2016-06-29 | 北京市燃气集团有限责任公司 | Gas pipeline tapping shutoff sealing pipe fitting |
| CN207139127U (en) * | 2017-06-14 | 2018-03-27 | 广州广重企业集团有限公司 | A kind of open-celled structure on major-diameter thick-wall container casing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114906499A (en) * | 2021-02-07 | 2022-08-16 | 中国石油化工股份有限公司 | Manhole structure and petroleum storage tank |
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| Publication number | Publication date |
|---|---|
| CN107052610B (en) | 2022-08-19 |
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