CN103924825A - Straight reinforced double-oval integrated chimney - Google Patents
Straight reinforced double-oval integrated chimney Download PDFInfo
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- CN103924825A CN103924825A CN201410150003.3A CN201410150003A CN103924825A CN 103924825 A CN103924825 A CN 103924825A CN 201410150003 A CN201410150003 A CN 201410150003A CN 103924825 A CN103924825 A CN 103924825A
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- chimney
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Abstract
The invention discloses a straight reinforced double-oval integrated chimney. The straight reinforced double-oval integrated chimney comprises two cylinders and reinforcing plates, wherein the two cylinders with oval sections are parallelly arranged along the direction of the short axis of the oval sections and are connected via at least one reinforced concrete connecting beam. The wedge-shaped reinforcing plates are arranged on the outer sides of the cylinders with oval sections along the direction of the long axis of the oval sections. An inner steel cylinder is omitted, so that construction cost of the chimney is reduced. The integral flexural rigidity of the chimney structure is improved by the connecting beams and the wedge-shaped reinforcing plates, transverse deformation of the integral chimney structure and bending moment resistant to horizontal actions such as wind load and seismic load are effectively controlled, and a steel ladder between the two oval cylinders is safer, more reliable and more convenient in use than a steel ladder of a conventional multi-pipe type inner steel cone chimney. Integral flexural rigidity of the chimney structure can be improved by the wedge-shaped reinforced concrete reinforcing plates, transverse deformation of the integral chimney structure and bending moment resistant to horizontal actions such as wind load and seismic load are effectively controlled, and the problem of expansion of an inner steel cone chimney connector is avoided by continuously casting the oval integrated chimney.
Description
Technical field
The invention belongs to power plant chimney technical field, be specifically related to cylindrical shell section form and be oval, with wedge shape steel concrete stiffener as the straight tube of the stiffener bielliptic(al) disjunctor chimney of putting more energy into.
Background technology
Along with improving constantly that country requires standard limit of smog release, the desulfurization processing of flue gas is all carried out in newly-built steam power station by mandatory requirement, in the newly-built chimney of employing wet desulfurizing process, multitube Steel Inner Core of Chimney becomes a kind of form generally using in power plant chimney.Multitube Steel Inner Core of Chimney can be divided into self-supporting and suspension type by the form of structure of chimney, and higher to the interface requirement of breeching in the design of self-supporting Steel Inner Core of Chimney, breeching temperature expansion can have a negative impact to steel inner cylinder; The design of the expansion joint of suspended steel inner barrel chimney is comparatively complicated, and the steel using amount of bearing platform is also larger.Consider the co-ordination of steel inner cylinder and steel concrete urceolus, multitube steel inner cylinder also will arrange system rolling device simultaneously, and as the horizontal restrain of steel inner cylinder, its design and construction is all comparatively loaded down with trivial details and complicated, and construction cost is also higher.
Modal in tradition multitube Steel Inner Core of Chimney is two steel inner cylinder sleeve chimneys, considering that under use function and economic benefit prerequisite, its steel inner cylinder is generally all comparatively elongated, the bending rigidity of itself is smaller, cannot independently bear the effect of the horizontal loading such as wind load and seismic load, therefore just need to increase a space enclosing structure in the outside of steel inner cylinder, its overall bending rigidity can be met design requirement.Be steel concrete urceolus as form common in steel inner cylinder space enclosing structure, also have and adopt steelwork tower truss as braced structures.But, no matter be concrete urceolus Steel Inner Core of Chimney, or tower-type chimney, steel inner cylinder in chimney one of the main member that is all absolutely necessary, because steel inner cylinder steel using amount is large, cost is very high, on the other hand, along with improving constantly of power plant capacity of power unit, also increasing for traditional sleeve chimney steel concrete urceolus and steel inner cylinder diameter, the increase of floor space has increased construction cost on the one hand, also may certain collision occur with its peripheral equipment facility (as dust catcher foundation) conflicts, affect to a certain extent and restricted relevant technology arrangement.Therefore meeting under the prerequisite of safety, applicability and durability, if can design a kind of Novel double-tube formula chimney without steel inner cylinder, will there is great economic benefit.
Summary of the invention
The object of the invention is the weak point for above-mentioned prior art, meeting under the requirement of the reliability indexs such as safety of structure, applicability, durability, a kind of rational in infrastructure, cost is relatively low and the straight tube of good looking appearance is put more energy into bielliptic(al) disjunctor chimney is being provided.
Technical scheme of the present invention is:
The straight tube bielliptic(al) disjunctor chimney of putting more energy into, comprise elliptic cross-section steel concrete cylindrical shell and wedge shape steel concrete stiffener, it is characterized in that, two elliptic cross-section steel concrete cylindrical shells are arranged side by side along the short-axis direction of elliptic cross-section, and two elliptic cross-section steel concrete cylindrical shells connect by least one steel concrete linking beam; Be provided with wedge shape steel concrete stiffener in elliptic cross-section cylindrical shell outside along long axis direction.
In order to obtain better technique effect, on described wedge shape steel concrete stiffener, there are some through holes; There is at least one steel concrete linking beam at described elliptic cross-section steel concrete cylindrical shell same level absolute altitude place; Described elliptic cross-section steel concrete cylindrical shell has at least one steel concrete linking beam along cylindrical shell direction; Between described two elliptic cross-section steel concrete cylindrical shells, connect in addition steel ladder, steel ladder connects the tie point of two elliptic cross-section steel concrete cylindrical shell differing heights, for the vertical transportation passage of elliptic cross-section steel concrete cylindrical shell, also strengthen the bonding strength between two elliptic cross-section steel concrete cylindrical shells; Lightning protection earthing device is arranged at the put more energy into top of bielliptic(al) disjunctor chimney of straight tube; Straight tube is put more energy on the outer wall of bielliptic(al) disjunctor chimney signal bridge; The bottom of elliptic cross-section steel concrete cylindrical shell has door opening and flue entrance.
The straight tube bielliptic(al) disjunctor chimney tool of putting more energy in power plant of the present invention has the following advantages:
(1) the straight tube bielliptic(al) disjunctor chimney of putting more energy into has been cancelled steel inner cylinder, has greatly reduced the construction cost of whole chimney structure, contrasts traditional two steel inner cylinder sleeve chimneys, has great economic benefit.
(2) by the structure optimization type selecting to oval disjunctor chimney, along the short-axis direction of oval cylindrical shell, two oval steel concrete cylindrical shells are linked to be to an entirety with steel concrete linking beam, total is more or less the same in the bending rigidity of all directions, stressed evenly in all directions, rational in infrastructure, the use of linking beam simultaneously also can reduce the lateral displacement of structure.
(3) wedge shape steel concrete stiffener can improve the overall bending rigidity of chimney structure, effectively controls the lateral deformation of whole chimney structure and the moment of flexure that opposing is caused by the horizontal force such as wind load and seismic load.
(4) known by mechanical analysis, the straight tube bielliptic(al) disjunctor chimney of putting more energy into can meet the force request under the effect such as deadweight, wind load, seismic load, sunshine.
Steel ladder between (5) two oval cylindrical shells, than the steel cat ladder safety and reliability of traditional multitube Steel Inner Core of Chimney, uses more convenient.
(6) ground region that reinforced concrete fender surrounds can provide for chimney the place of inspection and repair shop need.
(7) the oval disjunctor chimney of continuous placing has been avoided the problem that Steel Inner Core of Chimney interface expands.
Brief description of the drawings
Fig. 1 is embodiment of the present invention structural front view;
Fig. 2 is embodiment of the present invention structure left view;
Fig. 3 is the A-A sectional view of Fig. 1;
Fig. 4 is the B-B sectional view of Fig. 1;
In Fig. 1, Fig. 2, Fig. 3, Fig. 4:
1-elliptic cross-section steel concrete cylindrical shell, 2-wedge shape steel concrete stiffener, 3-steel concrete linking beam, 4-steel ladder, 5-signal bridge, 6-lightning protection earthing device, 7-flue entrance, 8-door opening.
Detailed description of the invention
Further introduce concrete structure of the present invention below in conjunction with drawings and Examples.
The straight tube bielliptic(al) disjunctor chimney of putting more energy into, comprise elliptic cross-section steel concrete cylindrical shell 1 and wedge shape steel concrete stiffener 2, it is characterized in that, two elliptic cross-section steel concrete cylindrical shells 1 are arranged side by side along the short-axis direction of elliptic cross-section, and two elliptic cross-section steel concrete cylindrical shells 1 connect by least one steel concrete linking beam 3; Outside at elliptic cross-section steel concrete cylindrical shell 1 is provided with wedge shape steel concrete stiffener 2 along long axis direction; On wedge shape steel concrete stiffener 2, there is at least one through hole; Wind can pass from through hole, reduces the windage of wedge shape steel concrete stiffener 2, has also reduced straight tube the stressed of bielliptic(al) disjunctor chimney of putting more energy into; There is at least one steel concrete linking beam 3 at elliptic cross-section steel concrete cylindrical shell 1 same level absolute altitude place; Elliptic cross-section steel concrete cylindrical shell 1 has at least one steel concrete linking beam 3 along cylindrical shell direction; Two 1 of elliptic cross-section steel concrete cylindrical shells connect steel ladder 4 in addition, steel ladder 4 connects the tie point of two elliptic cross-section steel concrete cylindrical shell 1 differing heights, for the vertical transportation passage of elliptic cross-section steel concrete cylindrical shell 1, also strengthen the bonding strength of 1 of two elliptic cross-section steel concrete cylindrical shell; Lightning protection earthing device 6 is arranged at the put more energy into top of bielliptic(al) disjunctor chimney of straight tube; Straight tube is put more energy on the outer wall of bielliptic(al) disjunctor chimney signal bridge 5; The bottom of elliptic cross-section steel concrete cylindrical shell 1 has door opening 8 and flue entrance 7, is convenient to workman and enters work and maintenance in chimney.
Two elliptic cross-section steel concrete cylindrical shells 1 arranged side by side are uniform section and the member perpendicular to ground, major axis, the minor axis of cylindrical shell oval cross section can be with reference to ad eundem unit tradition multitube Steel Inner Core of Chimney, the principle equal according to chimney breast area calculates, and cylindrical shell wall thickness also can be with reference to traditional chimney; Wedge shape steel concrete stiffener 2 is integrated poured with elliptic cross-section steel concrete cylindrical shell 1 junction, simultaneously, in order to reduce the windage of wedge shape steel concrete stiffener 2, there is at least one through hole on wedge shape steel concrete stiffener 2 surfaces, wind passes wedge shape steel concrete stiffener 2 by through hole, avoids bringing excessive wind resistance to elliptic cross-section steel concrete cylindrical shell 1; Steel concrete linking beam 3 is the members that link that two elliptic cross-section steel concrete cylindrical shells 1 are linked to be to entirety, can be one or more in the linking beam quantity at same level absolute altitude place; Steel ladder 4 is the vertical transportation passage of elliptic cross-section steel concrete cylindrical shell 1, connects by the built-in fitting being reserved on cylinder lateral wall, and this has also increased linking between two cylindrical shells, has improved the globality of structure; In addition, according to the requirement of technique specialty, in chimney structure, also answer modelled signal platform 5, lightning protection earthing device 6, flue entrance 7 and door opening 8.
Claims (8)
1. the straight tube bielliptic(al) disjunctor chimney of putting more energy into, comprise elliptic cross-section steel concrete cylindrical shell and wedge shape steel concrete stiffener, it is characterized in that, two elliptic cross-section steel concrete cylindrical shells are arranged side by side along the short-axis direction of elliptic cross-section, and two elliptic cross-section steel concrete cylindrical shells connect by least one steel concrete linking beam; Be provided with wedge shape steel concrete stiffener in elliptic cross-section cylindrical shell outside along long axis direction.
2. the straight tube as claimed in claim 1 bielliptic(al) disjunctor chimney of putting more energy into, is characterized in that there are some through holes on described wedge shape steel concrete stiffener.
3. the straight tube as claimed in claim 1 or 2 bielliptic(al) disjunctor chimney of putting more energy into, is characterized in that, there is at least one steel concrete linking beam at described elliptic cross-section steel concrete cylindrical shell same level absolute altitude place.
4. the straight tube as claimed in claim 1 or 2 bielliptic(al) disjunctor chimney of putting more energy into, is characterized in that, described elliptic cross-section steel concrete cylindrical shell has at least one steel concrete linking beam along cylindrical shell direction.
5. the straight tube as claimed in claim 1 or 2 bielliptic(al) disjunctor chimney of putting more energy into, is characterized in that, between described two elliptic cross-section steel concrete cylindrical shells, connects in addition steel ladder, and steel ladder connects the tie point of two elliptic cross-section steel concrete cylindrical shell differing heights.
6. the straight tube as claimed in claim 1 or 2 bielliptic(al) disjunctor chimney of putting more energy into, is characterized in that, lightning protection earthing device is arranged at the put more energy into top of bielliptic(al) disjunctor chimney of straight tube.
7. the straight tube as claimed in claim 1 or 2 bielliptic(al) disjunctor chimney of putting more energy into, is characterized in that, straight tube is put more energy on the outer wall of bielliptic(al) disjunctor chimney signal bridge.
8. the straight tube as claimed in claim 1 or 2 bielliptic(al) disjunctor chimney of putting more energy into, is characterized in that, the bottom of elliptic cross-section steel concrete cylindrical shell has door opening and flue entrance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410150003.3A CN103924825A (en) | 2014-04-15 | 2014-04-15 | Straight reinforced double-oval integrated chimney |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410150003.3A CN103924825A (en) | 2014-04-15 | 2014-04-15 | Straight reinforced double-oval integrated chimney |
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| CN103924825A true CN103924825A (en) | 2014-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410150003.3A Pending CN103924825A (en) | 2014-04-15 | 2014-04-15 | Straight reinforced double-oval integrated chimney |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150001A (en) * | 2018-01-22 | 2018-06-12 | 南昌大学 | Bottom is equipped with flue gas hole and the three pipe chimneys with external triangle casing |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4672782A (en) * | 1983-12-02 | 1987-06-16 | Richter Georg Gerd | Smokestack or tower of precast reinforced concrete modules |
| JPH05321482A (en) * | 1992-05-19 | 1993-12-07 | Ohbayashi Corp | Method for reinforcing existent steel chimney |
| JPH08199852A (en) * | 1995-01-27 | 1996-08-06 | Hitachi Zosen Corp | Jacket for chimney |
| CN2539795Y (en) * | 2002-01-25 | 2003-03-12 | 李建荣 | Elliptical chimney for erecting house |
| JP2003307047A (en) * | 2002-04-16 | 2003-10-31 | Meisei Ind Co Ltd | Support tower for chimney, its support unit frame body, and divided unit frame body |
| CN201172987Y (en) * | 2008-02-03 | 2008-12-31 | 中国电力工程顾问集团中南电力设计院 | Long and oblate chimney structure for power generating plant |
| CN201649779U (en) * | 2010-04-13 | 2010-11-24 | 沈阳铝镁设计研究院 | Steel chimney structure |
| CN201652388U (en) * | 2010-02-11 | 2010-11-24 | 湖南省电力勘测设计院 | Inner cylinder tiling chimney of reinforced concrete inner-outer cylinder |
| CN202324785U (en) * | 2011-11-24 | 2012-07-11 | 河北省电力勘测设计研究院 | Double-cylinder chimney |
| CN203867271U (en) * | 2014-04-15 | 2014-10-08 | 江西省电力设计院 | Straight reinforced double-ellipsoid combined chimney |
-
2014
- 2014-04-15 CN CN201410150003.3A patent/CN103924825A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4672782A (en) * | 1983-12-02 | 1987-06-16 | Richter Georg Gerd | Smokestack or tower of precast reinforced concrete modules |
| JPH05321482A (en) * | 1992-05-19 | 1993-12-07 | Ohbayashi Corp | Method for reinforcing existent steel chimney |
| JPH08199852A (en) * | 1995-01-27 | 1996-08-06 | Hitachi Zosen Corp | Jacket for chimney |
| CN2539795Y (en) * | 2002-01-25 | 2003-03-12 | 李建荣 | Elliptical chimney for erecting house |
| JP2003307047A (en) * | 2002-04-16 | 2003-10-31 | Meisei Ind Co Ltd | Support tower for chimney, its support unit frame body, and divided unit frame body |
| CN201172987Y (en) * | 2008-02-03 | 2008-12-31 | 中国电力工程顾问集团中南电力设计院 | Long and oblate chimney structure for power generating plant |
| CN201652388U (en) * | 2010-02-11 | 2010-11-24 | 湖南省电力勘测设计院 | Inner cylinder tiling chimney of reinforced concrete inner-outer cylinder |
| CN201649779U (en) * | 2010-04-13 | 2010-11-24 | 沈阳铝镁设计研究院 | Steel chimney structure |
| CN202324785U (en) * | 2011-11-24 | 2012-07-11 | 河北省电力勘测设计研究院 | Double-cylinder chimney |
| CN203867271U (en) * | 2014-04-15 | 2014-10-08 | 江西省电力设计院 | Straight reinforced double-ellipsoid combined chimney |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150001A (en) * | 2018-01-22 | 2018-06-12 | 南昌大学 | Bottom is equipped with flue gas hole and the three pipe chimneys with external triangle casing |
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Application publication date: 20140716 |