CN103924823A - All-in-one oval chimney with envelope supporting structures - Google Patents
All-in-one oval chimney with envelope supporting structures Download PDFInfo
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- CN103924823A CN103924823A CN201410149949.8A CN201410149949A CN103924823A CN 103924823 A CN103924823 A CN 103924823A CN 201410149949 A CN201410149949 A CN 201410149949A CN 103924823 A CN103924823 A CN 103924823A
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- chimney
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- braced structures
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Abstract
The invention discloses an all-in-one elliptical chimney with envelope supporting structures. The all-in-one elliptical chimney with the envelope supporting structures comprises reinforced concrete barrels with elliptical sections and the reinforced concrete envelope supporting structures with circular sections, wherein the two reinforced concrete barrels with the elliptical sections are arranged in parallel along the minor axis of an ellipse; the reinforced concrete envelope supporting structures with the circular sections are arranged on the peripheries of the two reinforced concrete barrels with the elliptical sections; a plurality of layers of steel structural platforms are arranged in each reinforced concrete envelope supporting structure with the circular section; and the steel structural platforms are connected with the two reinforced concrete barrels with the elliptical sections and the reinforced concrete envelope supporting structures with the circular sections. By using the all-in-one elliptical chimney, a steel inner barrel is omitted, and the construction cost of the chimney is reduced. By using reinforced concrete tie beams and the reinforced concrete envelope supporting structures, the overall flexural rigidity of the structure of the chimney is improved, transverse deformation of the whole structure of the chimney is effectively controlled, and bending moment caused by level effects such as wind load and earthquake load is resisted; and by using the continuously poured all-in-one elliptical chimney, the problem of expansion of connectors of a chimney with a steel inner barrel is solved.
Description
Technical field
The invention belongs to power plant chimney technical field, being specifically related to cylindrical shell section form is that ellipse, space enclosing structure cross section are the oval chimney of disjunctor that circular band is gone along with sb. to guard him braced structures.
Background technology
Along with improving constantly that country requires standard limit of smog release, newly-built steam power station is all forced to require the desulfurization of carrying out flue gas to process, in adopting the newly-built chimney of wet desulfurizing process, multitube Steel Inner Core of Chimney becomes a kind of form of 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 loadings such as wind load and seismic load, therefore just need to increase a space enclosing structure in the outside of steel inner cylinder, its whole bending rigidity can be met design requirement.As form common in steel inner cylinder space enclosing structure, be steel concrete urceolus, 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, is 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, provide a kind of rational in infrastructure, good looking appearance, the economic benefit oval chimney of disjunctor that significantly band is gone along with sb. to guard him braced structures.
Technical scheme of the present invention is:
A kind of band is gone along with sb. to guard him the oval chimney of disjunctor of braced structures, comprise that elliptic cross-section steel concrete cylindrical shell and circular cross-section steel concrete goes along with sb. to guard him braced structures, it is characterized in that, two elliptic cross-section steel concrete cylindrical shells are arranged side by side along ellipse short shaft direction, and the outer circular cross-section steel concrete that is with of two elliptic cross-section steel concrete cylindrical shells is gone along with sb. to guard him braced structures.
In order to obtain better technique effect, the inside that circular cross-section steel concrete is gone along with sb. to guard him braced structures arranges some layers of steel structure platform, and steel structure platform connects two elliptic cross-section steel concrete cylindrical shells and circular cross-section steel concrete is gone along with sb. to guard him braced structures; Two elliptic cross-section steel concrete cylindrical shells connect by least one steel concrete linking beam; 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; Lightning protection earthing device is arranged at the top that band is gone along with sb. to guard him the oval chimney of disjunctor of braced structures; Band is gone along with sb. to guard him on the outer wall of the oval chimney of disjunctor of braced structures signal bridge; The bottom that circular cross-section steel concrete is gone along with sb. to guard him braced structures has door opening.
The oval chimney tool of disjunctor that power plant of the present invention band is gone along with sb. to guard him braced structures has the following advantages:
(1) be with the oval chimney of disjunctor of going along with sb. to guard him braced structures to cancel steel inner cylinder, greatly reduced the construction cost of whole chimney structure, contrast traditional two steel inner cylinder sleeve chimneys, there is great economic benefit.
(2) by the structure optimization type selecting to oval disjunctor chimney, short-axis direction along oval cylindrical shell, with steel concrete linking beam, two oval steel concrete cylindrical shells are linked to be to an integral body, 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) steel concrete is gone along with sb. to guard him the whole bending rigidity that braced structures can improve chimney structure, effectively controls the lateral deformation of whole chimney structure and the moment of flexure that opposing is caused by horizontal forces such as wind load and seismic loads.
(4) known by mechanical analysis, the oval chimney of disjunctor that band is gone along with sb. to guard him braced structures can meet the force request under the effects 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, is used 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.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention structural representation;
Fig. 2 is embodiment of the present invention left view;
Fig. 3 is the A-A sectional view of Fig. 1;
Fig. 4 is the B-B sectional view of Fig. 1;
Fig. 5 is the C-C sectional view of Fig. 1;
In the drawings:
1-elliptic cross-section steel concrete cylindrical shell, 2-circular cross-section reinforced concrete fender, 3-steel concrete linking beam, 4-steel ladder, 5-signal bridge, 6-lightning protection earthing device, 7-flue entrance, 8-door opening.
The specific embodiment
Below in conjunction with drawings and Examples, further introduce concrete structure of the present invention.
Band is gone along with sb. to guard him the oval chimney of disjunctor of braced structures, comprise elliptic cross-section steel concrete cylindrical shell 1, two elliptic cross-section steel concrete cylindrical shells 1 are arranged side by side along ellipse short shaft direction, and two elliptic cross-section steel concrete cylindrical shells 1 connect by least one steel concrete linking beam 3; 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 strengthened the bonding strength of 1 of two elliptic cross-section steel concrete cylindrical shell; Lightning protection earthing device 6 is arranged at the top that band is gone along with sb. to guard him the oval chimney of disjunctor of braced structures; Band is gone along with sb. to guard him on the outer wall of the oval chimney of disjunctor of braced structures signal bridge 5; The outer circular cross-section steel concrete that is with of two elliptic cross-section steel concrete cylindrical shells 1 is gone along with sb. to guard him braced structures 2; The inside that circular cross-section steel concrete is gone along with sb. to guard him braced structures 2 arranges some layers of steel structure platform, and steel structure platform connects two elliptic cross-section steel concrete cylindrical shells 1 and circular cross-section steel concrete is gone along with sb. to guard him braced structures 2; The bottom that circular cross-section steel concrete is gone along with sb. to guard him braced structures 2 has door opening 8, 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 perpendicular to the member on ground, the major axis in elliptical cylinder cross section, minor axis 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; It is integrated poured with elliptic cross-section steel concrete cylindrical shell 1 junction that circular cross-section steel concrete is gone along with sb. to guard him braced structures 2, simultaneously, in order to strengthen connection between the two, optional position in going along with sb. to guard him braced structures 2 can also arrange steel structure platform, steel structure platform connects the outer wall of two elliptic cross-section steel concrete cylindrical shells 1 arranged side by side and the inwall of going along with sb. to guard him braced structures 2, for going along with sb. to guard him braced structures 2, provides lateral support point; Steel concrete linking beam 3 is that two elliptic cross-section steel concrete cylindrical shells 1 are linked to be to the whole member that links, and the linking beam quantity at same level absolute altitude place can be one or more; Steel ladder 4 is the vertical transportation passage of elliptic cross-section steel concrete cylindrical shell 1, by the built-in fitting being reserved on cylinder lateral wall, connects, 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. a band is gone along with sb. to guard him the oval chimney of disjunctor of braced structures, comprise that elliptic cross-section steel concrete cylindrical shell and circular cross-section steel concrete goes along with sb. to guard him braced structures, it is characterized in that, two elliptic cross-section steel concrete cylindrical shells are arranged side by side along ellipse short shaft direction, and the outer circular cross-section steel concrete that is with of two elliptic cross-section steel concrete cylindrical shells is gone along with sb. to guard him braced structures.
2. band as claimed in claim 1 is gone along with sb. to guard him the oval chimney of disjunctor of braced structures, it is characterized in that, the inside that described circular cross-section steel concrete is gone along with sb. to guard him braced structures arranges some layers of steel structure platform, and steel structure platform connects two elliptic cross-section steel concrete cylindrical shells and circular cross-section steel concrete is gone along with sb. to guard him braced structures.
3. band as claimed in claim 1 or 2 is gone along with sb. to guard him the oval chimney of disjunctor of braced structures, it is characterized in that, two elliptic cross-section steel concrete cylindrical shells connect by least one steel concrete linking beam.
4. band as claimed in claim 1 is gone along with sb. to guard him the oval chimney of disjunctor of braced structures, it is characterized in that, between described two elliptic cross-section steel concrete cylindrical shells, connects in addition steel ladder.
5. band as claimed in claim 3 is gone along with sb. to guard him the oval chimney of disjunctor of braced structures, it is characterized in that, steel ladder connects the tie point of two elliptic cross-section steel concrete cylindrical shell differing heights.
6. band as claimed in claim 1 or 2 is gone along with sb. to guard him the oval chimney of disjunctor of braced structures, it is characterized in that, lightning protection earthing device is arranged at the top that band is gone along with sb. to guard him the oval chimney of disjunctor of braced structures.
7. band as claimed in claim 1 or 2 is gone along with sb. to guard him the oval chimney of disjunctor of braced structures, it is characterized in that, band is gone along with sb. to guard him on the outer wall of the oval chimney of disjunctor of braced structures signal bridge.
8. band as claimed in claim 6 is gone along with sb. to guard him the oval chimney of disjunctor of braced structures, it is characterized in that, the bottom that circular cross-section steel concrete is gone along with sb. to guard him braced structures has door opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410149949.8A CN103924823A (en) | 2014-04-15 | 2014-04-15 | All-in-one oval chimney with envelope supporting structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410149949.8A CN103924823A (en) | 2014-04-15 | 2014-04-15 | All-in-one oval chimney with envelope supporting structures |
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| Publication Number | Publication Date |
|---|---|
| CN103924823A true CN103924823A (en) | 2014-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410149949.8A Pending CN103924823A (en) | 2014-04-15 | 2014-04-15 | All-in-one oval chimney with envelope supporting structures |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4519303A (en) * | 1983-03-24 | 1985-05-28 | Crown Union, Inc. | Chimney lining system including frame-supported membrane |
| JPH08303058A (en) * | 1995-05-10 | 1996-11-19 | Mitsubishi Heavy Ind Ltd | Double cylinder type vibration damping funnel |
| 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 |
| CN201862399U (en) * | 2010-09-14 | 2011-06-15 | 中北大学 | Regeneration device for methyl nitrite in production process of oxalic acid dimethyl ester |
| CN202324785U (en) * | 2011-11-24 | 2012-07-11 | 河北省电力勘测设计研究院 | Double-cylinder chimney |
| CN203867272U (en) * | 2014-04-15 | 2014-10-08 | 江西省电力设计院 | One-piece oval chimney with enclosure supporting structure |
-
2014
- 2014-04-15 CN CN201410149949.8A patent/CN103924823A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4519303A (en) * | 1983-03-24 | 1985-05-28 | Crown Union, Inc. | Chimney lining system including frame-supported membrane |
| JPH08303058A (en) * | 1995-05-10 | 1996-11-19 | Mitsubishi Heavy Ind Ltd | Double cylinder type vibration damping funnel |
| 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 |
| CN201862399U (en) * | 2010-09-14 | 2011-06-15 | 中北大学 | Regeneration device for methyl nitrite in production process of oxalic acid dimethyl ester |
| CN202324785U (en) * | 2011-11-24 | 2012-07-11 | 河北省电力勘测设计研究院 | Double-cylinder chimney |
| CN203867272U (en) * | 2014-04-15 | 2014-10-08 | 江西省电力设计院 | One-piece oval chimney with enclosure supporting structure |
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Application publication date: 20140716 |