CN203821941U - Single-inner-cylinder chimney applicable to double-furnaceconnection and capable of realizing independent maintenance - Google Patents
Single-inner-cylinder chimney applicable to double-furnaceconnection and capable of realizing independent maintenance Download PDFInfo
- Publication number
- CN203821941U CN203821941U CN201420156832.8U CN201420156832U CN203821941U CN 203821941 U CN203821941 U CN 203821941U CN 201420156832 U CN201420156832 U CN 201420156832U CN 203821941 U CN203821941 U CN 203821941U
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- China
- Prior art keywords
- steel
- cylinder
- chimney
- inner cylinder
- separation structure
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- Expired - Fee Related
Links
- 238000012423 maintenance Methods 0.000 title abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 66
- 239000010959 steel Substances 0.000 claims abstract description 66
- 238000000926 separation method Methods 0.000 claims abstract description 13
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical group [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 8
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 5
- 239000004567 concrete Substances 0.000 claims description 16
- 239000003546 flue gas Substances 0.000 claims description 7
- 241000628997 Flos Species 0.000 claims description 4
- 239000011150 reinforced concrete Substances 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 238000005452 bending Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 abstract 1
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 241000282326 Felis catus Species 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Chimneys And Flues (AREA)
Abstract
A single-inner-cylinder chimney applicable to double-furnace connection and capable of realizing independent maintenance comprises an outer reinforced concrete cylinder and an inner steel cylinder, wherein a separation structure is arranged in the middle of the inner steel cylinder and consists of two corrugated steel plates and horizontal steel trusses arranged vertically at equal intervals, steel grating plates are arranged on the horizontal steel trusses to be used as sidewalk plates, a vertical ladder provided with a protective cage is fixed on the inner steel cylinder and used for vertical passing, rigid reinforcing rings are arranged on the outer side of the annular wall of the inner cylinder, maintenance holes corresponding to the horizontal steel trusses are formed in the annular wall of the inner steel cylinder, and a flue hole is formed in the outer reinforced concrete cylinder and used for being connected with a steel flue. According to the chimney, the separation structure divides the single inner cylinder into two spaces, flue gas parts are mutually separated, two machines are not required to be halted for maintenance simultaneously, the independent maintenance is realized, the inner diameter of the outer reinforced concrete cylinder is reduced, the windward area is reduced, the base bending moment is reduced correspondingly, the foundation and superstructure quantity can also be reduced, and materials and construction costs are saved.
Description
Technical field
The utility model relates to the chimney structure in steam power station, especially relates to a kind of single internal cylinder chimney that also can realize independent maintenance for two boiler accesses.
background technology
In steam power station, due to environmental requirement, require flue gas to carry out desulfurization, conventionally adopt wet desulphurization.After desulfurization, to chimney, corrosion strengthens wet flue gas, and chimney adopts steel concrete urceolus to add the form of structure of steel inner cylinder conventionally, and steel inner cylinder is used for discharging flue gas.For two units building simultaneously, if two boilers access an inner core simultaneously, when inner core repair and maintenance, just need to cut off together two stoves, this makes a big impact to producing.So requirement in Code for design of chimneys, for 600MW unit, should adopt a stove to one; For 1000MW unit, should adopt a stove to one, that is to say in a steel concrete urceolus two smoke evacuation inner cores should be set.
In reinforced concrete cylinder urceolus due to a circular cross section, arrange two circular steel inner cylinders, consider the requirement that maintenance is current, the size of steel concrete urceolus is very large, and the vertical and horizontal loading bearing is also very large, causes engineering quantity huge.For example, the about 7m of inner core internal diameter of a discharge 600MW unit exhaust gas volumn, if place two, considers current requirement in addition, and the internal diameter that steel concrete urceolus cylinder stem is divided is about 17m, and size is very large.Because place two inner cores in steel concrete inner core, be not also fully used with the space of inner core line vertical direction.In order to realize independent maintenance, make full use of in steel concrete urceolus space and reduce urceolus diameter, just need a kind of new form of structure to achieve the goal.
Utility model content
The purpose of this utility model is to provide and is a kind ofly applicable to two boilers and accesses single internal cylinder chimney that can independently overhaul, and with the requirement that meets independent maintenance, makes full use of space and save soil, reduces engineering quantity simultaneously, reduces construction costs.
For achieving the above object, the utility model provides a kind of single internal cylinder chimney that is applicable to twin furnace access and can independently overhauls, comprise steel concrete urceolus, a steel inner cylinder, it is characterized in that: the centre of steel inner cylinder arranges separation structure, separation structure forms by two corrugated sheet steels with along the horizontal steel truss of vertical spaced set, above horizontal steel truss, be provided with steel grating plate as walkway board, on steel inner cylinder, be fixed with and be with the catladder that protects cage for vertical current, at the arranged outside rigidity reinforcing ring of inner core ring wall, manhole is established in position corresponding to horizontal steel truss on the ring wall of steel inner cylinder, on steel concrete urceolus, have floss hole for connecting steel flue gas duct.
Single inner core is separated into two parts space by the utility model separation structure, accesses respectively the flue of two boilers.Be positioned on the ring wall of inner core between two corrugated sheets and manhole be set for repair and maintenance and ventilation, vertical cat ladder is set for vertical current in the inside of separation structure.Because flue gas partial is isolated mutually; shut down maintenance without two units simultaneously; realize the object of independent maintenance; reduce the internal diameter of steel concrete urceolus; add that by the area of two inner cores separation structure area occupied arranges single inner core, as two each diameter 7m of inner core, consider separation structure area occupied; the diameter of single inner core is about 11m, and the internal diameter of corresponding single inner core steel concrete urceolus cylinder head is about 13m.Compared with the about 17m of the first internal diameter of the steel concrete urceolus cylinder that contains two steel inner cylinders, reduce 4m, a considerable number of.Because urceolus internal diameter reduces, front face area reduces, and substrate moment of flexure is corresponding to be reduced, and also can reduce basis and superstructure engineering quantity.Soil can be saved and effectively be utilized to this scheme, current land resources growing tension, and this power plant arranging for densification is significant.The corrugated sheet steel of separation structure, compared with flat board, increases moment of inertia, strengthens bending resistance, reduces steel plate consumption.Due to reducing of the outer cylinder size of concrete and engineering quantity, save material and operating expenses, adopt as seen this single internal cylinder chimney that is applicable to twin furnace access and can independently overhaul to there is extraordinary economic benefit and social benefit.
Brief description of the drawings
Fig. 1 is applicable to twin furnace access and the plan view of single internal cylinder chimney that can independently overhaul;
Fig. 2 is applicable to twin furnace access and the sectional drawing of single internal cylinder chimney that can independently overhaul.
Detailed description of the invention
With reference to Fig. 1, with reference to Fig. 2, the utility model comprises that steel concrete urceolus 1, steel inner cylinder 2, corrugated sheet steel 3, horizontal steel truss 4, steel grating plate 5, band protect catladder 6, rigidity reinforcing ring 7, manhole 8, the floss hole 9 of cage.First construction reinforced bar concrete urceolus 1 is then assembled good at the scene by steel inner cylinder 2.Corrugated sheet 3, horizontal steel truss 4 are assembled into separation structure, separation structure are placed in to steel inner cylinder 2 and form entirety.Steel grating plate 5 is placed on steel truss 4 as walkway board, and the catladder 6 that band protects cage is welded on steel inner cylinder 2 for vertical current.For strengthening the globality of steel inner cylinder 2, in steel inner cylinder 2 outside, rigidity reinforcing ring 7 is set corresponding to the position of steel truss 4 for one week.Manhole 8 is established in position at horizontal steel truss 4 on the ring wall of steel inner cylinder 2, and for maintenance and ventilation, floss hole 9 is for connecting steel flue gas duct.
Claims (1)
1. a single internal cylinder chimney that is applicable to twin furnace access and can independently overhauls, comprise steel concrete urceolus, a steel inner cylinder, it is characterized in that: the centre of steel inner cylinder arranges separation structure, separation structure forms by two corrugated sheet steels with along the horizontal steel truss of vertical spaced set, above horizontal steel truss, be provided with steel grating plate as walkway board, on steel inner cylinder, be fixed with and be with the catladder that protects cage for vertical current, at the arranged outside rigidity reinforcing ring of inner core ring wall, manhole is established in position corresponding to horizontal steel truss on the ring wall of steel inner cylinder, on steel concrete urceolus, have floss hole for connecting steel flue gas duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420156832.8U CN203821941U (en) | 2014-04-02 | 2014-04-02 | Single-inner-cylinder chimney applicable to double-furnaceconnection and capable of realizing independent maintenance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420156832.8U CN203821941U (en) | 2014-04-02 | 2014-04-02 | Single-inner-cylinder chimney applicable to double-furnaceconnection and capable of realizing independent maintenance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203821941U true CN203821941U (en) | 2014-09-10 |
Family
ID=51477454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420156832.8U Expired - Fee Related CN203821941U (en) | 2014-04-02 | 2014-04-02 | Single-inner-cylinder chimney applicable to double-furnaceconnection and capable of realizing independent maintenance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203821941U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094999A (en) * | 2019-03-27 | 2019-08-06 | 西安西热锅炉环保工程有限公司 | A kind of titanium tube of thin wall flue gas condenser with maintenance structure |
-
2014
- 2014-04-02 CN CN201420156832.8U patent/CN203821941U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094999A (en) * | 2019-03-27 | 2019-08-06 | 西安西热锅炉环保工程有限公司 | A kind of titanium tube of thin wall flue gas condenser with maintenance structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA POWER ENGINEERING CONSULTING GROUP NORTHEAST Free format text: FORMER NAME: NORTHEASTERN ELECTRIC POWER DESIGN INSTITUTE, CHINA POWER ENGINEERING CONSULTING GROUP CORPORATION |
|
| CP03 | Change of name, title or address |
Address after: 130021 Jilin City, Changchun province people's street, No. 4368 Patentee after: NORTHEAST ELECTRIC POWER DESIGN INSTITUTE CO., LTD. OF CHINA POWER ENGINEERING CONSULTING Group Address before: 130021 Northeast Power Design Institute, No. 4368 Renmin Street, Jilin, Changchun Patentee before: NORTHEAST ELECTRIC POWER DESIGN INSTITUTE OF CHINA POWER ENGINEERING CONSULTING Group |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 |