CN109442378A - The high shell adding body dome head structure of station boiler - Google Patents
The high shell adding body dome head structure of station boiler Download PDFInfo
- Publication number
- CN109442378A CN109442378A CN201811073819.5A CN201811073819A CN109442378A CN 109442378 A CN109442378 A CN 109442378A CN 201811073819 A CN201811073819 A CN 201811073819A CN 109442378 A CN109442378 A CN 109442378A
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- China
- Prior art keywords
- dome head
- cylinder
- head
- wall thickness
- station boiler
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/32—Feed-water heaters, i.e. economisers or like preheaters arranged to be heated by steam, e.g. bled from turbines
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The present invention provides a kind of high shell adding body dome head structure of station boiler, mainly solve the problems, such as traditional end enclosure structure ellipse head bearing capacity is poor, structure is single, wall thickness, material and wlding consume it is big.The present invention is according to bearing device shell wall thickness calculation formula and stress analysis: under identical material, internal diameter, pressure condition, it can be the half of cylinder wall thickness with flowering structure dome head wall thickness minimum, 4 right end of cylinder is provided with inclined surface transition 3, and cylinder 4 is welded by the circumferential weld groove 2 and dome head 1 of 3 right part of surface transition.Dome head material consumption can be greatly lowered, bearing capacity and stress distribution are preferable.
Description
Technical field
The present invention relates to be related to the bearing devices such as boiler, pressure vessel, nuclear power generating equipment to design and manufacture field, is related to height
Add the design and fabrication technology of housing cylinder Yu end socket connection structure, specifically a kind of high shell adding body dome head knot of station boiler
Structure.
Background technique
For a long time, for high-pressure heater (referred to as high to add) as high pressure U pipe heat exchange pressure vessel, shell is always cylinder
Body and ellipse head welding structure, are shown in Fig. 1.Ellipse head bearing capacity is poor, structure is single, wall thickness, material and wlding consumption are big；
Ellipse head circumferential weld groove appearance facing causes surface discontinuous, and presentation quality is poor；Lead to boiler, pressure vessel, nuclear power
The design structure and manufacturing technology of the high shell adding body of bearing devices manufacturing enterprise and similar structures product is waited to fall behind.
Summary of the invention
The purpose of the present invention is to solve the above-mentioned problems of the prior art, and then provide a kind of station boiler height and add
Shell dome head structure, dome head material consumption can be greatly lowered, bearing capacity and stress distribution are preferable, economic benefit
It is improved.
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of high shell adding body dome head structure of station boiler, including dome head, circumferential weld groove, outer surface transition, cylinder,
It is characterized in that, the cylinder right end is provided with inclined surface transition, and cylinder passes through the circumferential weld groove of surface transition right part
It is welded with dome head.
The dome head steel plate blank thickness is less than cylinder steel plate blank thickness, and dome head inner sphere radius is greater than
Cylinder inner circle radius, dome head inner sphere radius are greater than Internal Spherical Surface height.
Accurately processing at the circumferential weld groove makes weld outer surface smoother between dome head and cylinder, outside weld
Surface has the identical gradient with the outer surface transition of cylinder.
Dome head wall thickness is not less than the half of cylinder wall thickness.
The beneficial effects of the present invention are: by using technical solution of the present invention, in identical material, internal diameter, pressure condition
Under, the half of cylinder wall thickness is not less than with flowering structure dome head wall thickness, dome head material consumption can be greatly lowered,
It is preferable that bearing capacity with stress distribution compares ellipsoidal head.
1, height plus housing cylinder and ellipse head structure innovation are optimized for cylinder and dome head structure；
2, height plus the steel plates such as housing cylinder and end socket wall thickness structure innovation are optimized for the wall thickness structure such as not；
3, the thick-walled structure innovation of high shell adding body ellipse head high material consumption is optimized for the small phase of dome head material consumption
To thin-wall construction；
4, height plus housing cylinder and the innovation of ellipse head uniform thickness connection structure are optimized for the not uniform thickness transition of cylinder and dome head
Connection structure；
5, the girth joint outer surface of high plus housing cylinder and dome head also keeps certain slope.
Material consumption, energy consumption, wlding consumption, manufacturing cost and expense are reduced, high shell adding body design structure and system are made
Make technical method, economic benefit is innovated and is optimized.
Detailed description of the invention
Fig. 1 is existing high shell adding body stack shell and ellipse head structural schematic diagram.
Fig. 2 is the structural schematic diagram of the high shell adding body dome head of the present invention.
Fig. 3 is the high shell adding body ellipse head of D2500 × 110 of the present invention and tube structure schematic diagram.
Fig. 4 is the high shell adding body dome head structural schematic diagram of station boiler of the present invention.
Specific embodiment
Below in conjunction with attached drawing, the present invention is described in further detail: the present embodiment is being with technical solution of the present invention
Under the premise of implemented, give detailed embodiment, but protection scope of the present invention is not limited to following embodiments.
As shown in Fig. 2, a kind of high shell adding body dome head structure of station boiler involved in the present embodiment, including spherical envelope
First 1, circumferential weld groove 2, outer surface transition 3, cylinder 4, which is characterized in that 4 right end of cylinder is provided with inclined surface mistake
3 are crossed, cylinder 4 is welded by the circumferential weld groove 2 and dome head 1 of 3 right part of surface transition.
The 1 steel plate blank thickness of dome head is less than 4 steel plate blank thickness of cylinder, 1 inner sphere radius of dome head
Greater than 4 inner circle radius of cylinder, 1 inner sphere radius of dome head is greater than Internal Spherical Surface height.
Accurately processing makes weld outer surface smoother between dome head 1 and cylinder 4 at the circumferential weld groove 2, welds
Locating outer surface has the identical gradient with the outer surface transition 3 of cylinder 4.
1 wall thickness of dome head is not less than the half of cylinder wall thickness 4.
As an embodiment of the present invention, Fig. 3 is seen with tube structure such as certain high shell adding body ellipse head, ellipse head is most
Small 110 mm of finished product thickness, 125 mm of steel plate blank thickness are suppressed at circumferential weld groove and are thickened to 140 mm of thickness；Length of cylindrical shell sections
2700 mm, steel plate thickness 110mm, ellipse head circumferential weld groove need 30 mm of skiving=140-110, with shell ring circular seam welding；
Shell shell ring welding equipment diameter pipe at a gulp has piping U-tube in shell.
Fig. 3 ellipse head uses whole plate hot pressing, consumes 10.8 tons of 125 mm thick steel plate；2700 mm long shell rings consumption 110
19.1 tons of mm thick steel plate, add up to 29.9 tons of steel plate materials of consumption.It can be seen that ellipse head is due to outer surface skiving and processed
It crosses, surface is discontinuous, presentation quality is poor；Steel plate is thicker, and consumable material is more；Ellipse head bearing capacity is poor, and design structure is not
Rationally.
According to the technique and scheme of the present invention, it under the premise of keeping shell length constant, calculates and answers by design accounting
Power analysis, optimizes and innovates to height plus shell structure design and fabrication technology.
60 mm of Fig. 4 dome head is minimum finished product thickness, and steel plate blank thickness takes 70 mm, 30 mm of circumferential weld maximum width,
Up to 77 mm after thickness compacting at circumferential weld groove, 17 mm are thickened by processing 1 inner surface of dome head, can be made at circumferential weld groove
Thickness reaches not less than 60 mm, and dome head height 1020mm, 2355 mm of length of cylindrical shell sections, steel plate thickness is still 110mm；Shell ring
It is the girth joint outer surface gradient that 44 mm of skiving=110-60-6,6 mm are needed at 250 mm of groove transition length, circumferential weld groove
Difference in height, the large-diameter pipe position of welding equipment slightly adjusts on shell ring.
Dome head 1 uses whole plate punching press in Fig. 4, and using the compacting tool set of SD2500 × 70, compacting is thickened table in distribution
Face, compression moulding post-processing end socket inner surface to SD2540,60 mm of circumferential weld groove thickness, to reach outside dome head and shell ring
Surface rounding off, surface quality are preferable.
Dome head needs to consume 6.62 tons of thickness 70mm steel plate, and 2355mm long shell ring needs 16.66 tons of consumable material, closes
23.3 tons of steel plate materials of meter consumption.Steel plate is reduced than former scheme and consumes 6.6 tons, and economic benefit is obvious.
The foregoing is only a preferred embodiment of the present invention, these specific embodiments are all based on the present invention
Different implementations under general idea, and scope of protection of the present invention is not limited thereto, it is any to be familiar with the art
Technical staff in the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of, should all cover of the invention
Within protection scope.Therefore, the scope of protection of the invention shall be subject to the scope of protection specified in the patent claim.
Claims (4)
1. a kind of high shell adding body dome head structure of station boiler, including dome head (1), circumferential weld groove (2), outer surface transition
(3), cylinder (4), which is characterized in that described cylinder (4) right end is provided with inclined surface transition (3), and cylinder (4) passes through table
The circumferential weld groove (2) of face transition (3) right part and dome head (1) are welded.
2. the high shell adding body dome head structure of station boiler according to claim 1, which is characterized in that the spherical envelope
Head (1) steel plate blank thickness is less than cylinder (4) steel plate blank thickness, and dome head (1) inner sphere radius is greater than cylinder (4) inner circle
Radius, dome head (1) inner sphere radius are greater than Internal Spherical Surface height.
3. the high shell adding body dome head structure of station boiler according to claim 1, which is characterized in that the circumferential weld slope
Accurately processing makes weld outer surface smoother between dome head (1) and cylinder (4), weld outer surface and cylinder at mouth (2)
(4) outer surface transition (3) has the identical gradient.
4. the high shell adding body dome head structure of station boiler according to claim 1 or 2, which is characterized in that dome head
(1) wall thickness is not less than the half of cylinder wall thickness (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811073819.5A CN109442378A (en) | 2018-09-14 | 2018-09-14 | The high shell adding body dome head structure of station boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811073819.5A CN109442378A (en) | 2018-09-14 | 2018-09-14 | The high shell adding body dome head structure of station boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109442378A true CN109442378A (en) | 2019-03-08 |
Family
ID=65532789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811073819.5A Pending CN109442378A (en) | 2018-09-14 | 2018-09-14 | The high shell adding body dome head structure of station boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109442378A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109945155A (en) * | 2019-03-22 | 2019-06-28 | 哈尔滨锅炉厂有限责任公司 | The circumferential weld structure and its manufacturing method of water storage tank |
| CN114104187A (en) * | 2021-11-29 | 2022-03-01 | 江苏科技大学 | Variable-thickness seal head and design method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103128459A (en) * | 2013-03-06 | 2013-06-05 | 上海锅炉厂有限公司 | Method for controlling welding deformation between seal head and skirt transition section |
| CN104625673A (en) * | 2013-11-12 | 2015-05-20 | 青岛旭升封头有限公司 | Boiler drum end socket groove machining method |
| CN106670677A (en) * | 2017-03-09 | 2017-05-17 | 兖矿鲁南化工有限公司 | Reactor for synthesizing acetic anhydride through methyl acetate by liquid-phase carbonylation and welding method thereof |
-
2018
- 2018-09-14 CN CN201811073819.5A patent/CN109442378A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103128459A (en) * | 2013-03-06 | 2013-06-05 | 上海锅炉厂有限公司 | Method for controlling welding deformation between seal head and skirt transition section |
| CN104625673A (en) * | 2013-11-12 | 2015-05-20 | 青岛旭升封头有限公司 | Boiler drum end socket groove machining method |
| CN106670677A (en) * | 2017-03-09 | 2017-05-17 | 兖矿鲁南化工有限公司 | Reactor for synthesizing acetic anhydride through methyl acetate by liquid-phase carbonylation and welding method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 郜愿锋等: "压力容器球形封头与筒体连接结构分析", 《锅炉制造》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109945155A (en) * | 2019-03-22 | 2019-06-28 | 哈尔滨锅炉厂有限责任公司 | The circumferential weld structure and its manufacturing method of water storage tank |
| CN109945155B (en) * | 2019-03-22 | 2020-10-13 | 哈尔滨锅炉厂有限责任公司 | Method for manufacturing circular seam structure of water storage tank |
| CN114104187A (en) * | 2021-11-29 | 2022-03-01 | 江苏科技大学 | Variable-thickness seal head and design method thereof |
| CN114104187B (en) * | 2021-11-29 | 2023-11-21 | 江苏科技大学 | Thickening seal head and design method thereof |
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190308 |
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| RJ01 | Rejection of invention patent application after publication |