CN207139127U - A kind of open-celled structure on major-diameter thick-wall container casing - Google Patents
A kind of open-celled structure on major-diameter thick-wall container casing Download PDFInfo
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- CN207139127U CN207139127U CN201720690771.7U CN201720690771U CN207139127U CN 207139127 U CN207139127 U CN 207139127U CN 201720690771 U CN201720690771 U CN 201720690771U CN 207139127 U CN207139127 U CN 207139127U
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Abstract
It the utility model is related to boilers and pressure vessel and manufacture and design field, more particularly to a kind of open-celled structure on major-diameter thick-wall container casing.Three sections of the open-celled structure point, including the bellmouth for the optimized design of first paragraph straight hole, second segment being sequentially connected and the 3rd section of straight hole；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.The purpose of this utility model is to provide one kind in major-diameter thick-wall container（Drum）Housing on a kind of open-celled structure, to the machining amount of inner walls during reducing perforate, and greatly reduce welding job amount and Non-Destructive Testing region, while corresponding reduce probability caused by weld defect and reduce welding deformation.
Description
Technical field
Boilers and pressure vessel manufacturing field is the utility model is related to, more particularly to one kind is on major-diameter thick-wall container casing
Open-celled structure.
Background technology
As technological progress and new material, the application of new technology, the applying working condition of boilers and pressure vessel product increasingly become
To from high parameter, 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（Drum）Housing on be always welded with and connect what is connected with exterior tubing inside container
Pipe, it is all adapter all by the housing of container perforate, be welded on housing to 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 processes bellmouth 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, and the region of heap postwelding Non-Destructive Testing is big, and connects
Pipe is easily deformed when welding.
Utility model content
The purpose of this utility model is to provide a kind of open-celled structure on the housing of major-diameter thick-wall container, to reduce
Welding job amount, and reduce probability caused by weld defect and Non-Destructive Testing region.
The utility model is achieved through the following technical solutions：
Open-celled structure on the housing of major-diameter thick-wall container, 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 second segment bellmouth both ends are respectively big end and small end, and the small end connects the first paragraph straight hole, and the big end connects
Connect the 3rd section of straight hole；The 3rd section of straight hole connects the inside of the housing.
The utility model structure has following beneficial effect compared with prior art：
The utility model optimizes the structural shape of perforate, using the open-celled structure of three-stage, in second segment bellmouth
End sets the 3rd straight hole so that perforate machining region greatly reduces, so as to reduce built-up welding workload and Non-Destructive Testing
Region, and reduce probability caused by weld defect.Generally greatly improve welding quality and reduce manufacturing cost.
A preferred scheme of the present utility model, wherein, the bus of the second segment bellmouth and the angle of vertical line are
45°.Using 45 ° of angle of inclination, it is ensured that welding rod can extend into welding groove bottom during welding, so as at welding groove bottom
Portion forms good welding melt region, ensures that groove bottom can fully penetrate, avoids the generation of weld defect.If incline
Rake angle is excessive, then welding groove welding rod melt region increases, and welding job amount accordingly increases, and causes manufacturing cost to increase.Such as
Fruit angle of inclination is too small, then easily causes welding groove bottom to be not easy to penetrate.
A preferred scheme of the present utility model, wherein, at least place is 2mm to the hole depth of the first paragraph straight hole.So
It can ensure that welding fluid of the whole welding groove in welding in melt region is not spilt, while 2mm straight flange may finally melt again
Enter into welding fluid, ensure that welding complete penetraction and fusion in welding.If straight flange is excessive, groove straight flange is not easy to be fused in welding fluid, so as to cause
Existing weld defect.
A preferred scheme of the present utility model, 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 the bellmouth gone out is based on ensureing the most suitable welding of welding groove, economy most rationally.
Major-diameter thick-wall container described in the utility model includes drum.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description：
Fig. 1 is that the utility model connects the structural representation after welding adapter；
Fig. 2 is A-A cross section structure diagrams in the utility model Fig. 1；
Fig. 3 is the open-celled structure schematic diagram of unwelded adapter in the utility model Fig. 2；
Fig. 4 is open-celled structure partial enlarged drawing in the utility model Fig. 3.
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
The open-celled structure on the housing of drum as shown in Fig. 1,2,3 and 4, open-celled structure are circular openings structure；Open
Pore structure includes first paragraph straight hole 1, second segment bellmouth 2 and the 3rd section of straight hole 3 being sequentially connected.The length of first paragraph straight hole 1
Minimum place is 2mm.First paragraph straight hole 1 connects the outside of the housing 4.The respectively big end in the both ends of second segment bellmouth 2 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 segment taper
The angle of inclination in hole 2 is 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, calculate the angle of perforate angle α=
arcsin(d/(2*R).As shown in figure 3, casing annular section is done to the center of open-celled structure.Ring section central point and perforate
Perforate starting point line on section, 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 the schematic diagram after adapter 5 is welded by the way of open-celled structure of the present utility model uses built-up welding completion.By
This understands that, relative to the open-celled structure using two-part, the open-celled structure of three-stage greatly optimizes open-celled structure, reduced not
Cutting zone is processed in necessary perforate.So as to reduce built-up welding workload and Non-Destructive Testing region, and reduce weld defect production
Raw probability.Generally greatly improve welding quality and reduce manufacturing cost.
Above-described is only preferred embodiment of the present utility model, it is noted that for those skilled in the art
For, on the premise of the utility model structure is not departed from, several modifications and improvements can also be made, these should also be considered as this
The protection domain of utility model, these are all without the effect and practical applicability for influenceing the utility model implementation.
Claims (4)
- A kind of 1. 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 both 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720690771.7U CN207139127U (en) | 2017-06-14 | 2017-06-14 | A kind of open-celled structure on major-diameter thick-wall container casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720690771.7U CN207139127U (en) | 2017-06-14 | 2017-06-14 | A kind of open-celled structure on major-diameter thick-wall container casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207139127U true CN207139127U (en) | 2018-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720690771.7U Active CN207139127U (en) | 2017-06-14 | 2017-06-14 | A kind of open-celled structure on major-diameter thick-wall container casing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107052610A (en) * | 2017-06-14 | 2017-08-18 | 广州广重企业集团有限公司 | A kind of open-celled structure and boring method on major-diameter thick-wall container casing |
-
2017
- 2017-06-14 CN CN201720690771.7U patent/CN207139127U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107052610A (en) * | 2017-06-14 | 2017-08-18 | 广州广重企业集团有限公司 | A kind of open-celled structure and boring method on major-diameter thick-wall container casing |
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