CN201172986Y - Four-tube self-supporting steel chimney for power generating plant - Google Patents
Four-tube self-supporting steel chimney for power generating plant Download PDFInfo
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- CN201172986Y CN201172986Y CNU2008200656167U CN200820065616U CN201172986Y CN 201172986 Y CN201172986 Y CN 201172986Y CN U2008200656167 U CNU2008200656167 U CN U2008200656167U CN 200820065616 U CN200820065616 U CN 200820065616U CN 201172986 Y CN201172986 Y CN 201172986Y
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Abstract
The utility model relates to a self-supporting steel chimney with four pipes of an electric power plant, which comprises four steel chimneys (1) and connecting steel constructional elements (2) which are used for connecting the steel chimneys (1), wherein the steel chimneys (1) and the connecting steel constructional elements (2) are arranged in a square shape, and the four steel chimneys (1) are positioned on the four points of the square arrangement. The chimney overcomes the defects of big occupied area, high investment cost and the like of an existing steel chimney of an electric power plant. The self-supporting steel chimney with four pipes of an electric power plant of the utility model has the advantages of small occupied area, low investment cost and the like.
Description
Technical field
The utility model relates to a kind of fume emission device (structure) in the power plant, and more particularly it is a kind of four pipe free-standing steel chimneys.
Background technology
Chimney also is a highest and tool landmark thing in the power plant as fume emission device important in the power plant.Along with Chinese national economy and power industry constantly develop, China has built up or has built the power plant chimney, no matter is monotubular or multibarrel sleeve chimney, and its chimney concrete urceolus type selecting has all generally adopted conventional circular cross-section.
Along with the raising of national environmental standard and the enhancing of popular environmental consciousness, all requiring to carry out flue gas desulfurization from the domestic newly-built steam power station of beginning in 2002 handles, cause the service condition of chimney more abominable, adopt the desulfuration chimney of wet desulfurizing process mostly to adopt telescopic chimney in the new construction, steel inner cylinder, multitube sleeve chimney become the main flow of development gradually.Raising along with power plant unit single-machine capacity, the steel inner cylinder diameter of corresponding chimney is increasing, for its pair of 2 * 1000MW unit steel inner cylinder sleeve chimney top diameter big to reach 18m many, seriously inharmonious from chimney monnolithic case depth-width ratio, therefore consider to be optimized innovative design from the demand of construction landscape design innovation fume emission device the highest the power plant is being satisfied under the prerequisite of its function of use, in power plant's design, inject the design concept of the sense of modernness and the architectural aesthetics; And consider its landscape function in entire power plant comprehensively and obey the requirement of neighboring buildings view, the vision and the moulding needs of serving full factory more effectively.
Along with the raising of power plant unit single-machine capacity, the steel inner cylinder diameter of corresponding chimney is increasing, and floor space strengthens, and has limited the optimization of power plant main building land used index to a certain extent; The increase of chimney bottom floor space simultaneously also makes it have certain collision with the layout (as the electric precipitation basis) of peripheral equipment and conflicts, thus restriction and influenced the power plant stove after technology arrangement, limited the power plant system layout and failed the optimization of coal channel.
On the other hand, for the steel smoke evacuation tube of major function in the two steel inner cylinder sleeve chimneys in the power plant for the discharging flue gas, general its diameter with highly comparatively speaking seem tiny, therefore steel inner cylinder self can't bear the wind load of level separately, the influence of seismic load, need increase the enclosed structure of an opposing horizontal loads in the outside of steel smoke evacuation tube, just our steel concrete urceolus of saying; Also have and adopt the tower-type chimney of steel work pylon as braced structures.No matter be to adopt steel concrete urceolus or employing steel tower, all consider only to bear the weight effect of self as the steel inner cylinder of steel smoke evacuation tube, do not consider that it directly participates in the opposing wind load directly as bearing carrier, the horizontal force of seismic load, the steel inner cylinder rigidity of structure is not used effectively, and material behavior is performance fully not.Along with improving constantly of power plant unit single-machine capacity, the smoke evacuation tube diameter of sleeve chimney constantly increases, thus make steel smoke evacuation inner core behind the cancellation steel concrete urceolus directly bear the chimney external loads become a kind of may; By quantity and the employing rational structure pattern of optimizing the smoke evacuation tube, the material behavior of giving full play to steel smoke evacuation inner core makes it become the self-supporting structure chimney becomes possibility.In addition, improve day by day and popular environmental consciousness strengthens day by day for environmental requirement, emphasize resource-effective today day by day, for the today of vigorously advocating innovation and development and sustainable development, the innovative design and the optimal design of carrying out steel inner cylinder sleeve chimney have very important significance of times.
Summary of the invention
The purpose of this utility model has been to overcome the weak point of above-mentioned existing power plant fume emission device, and provides a kind of power plant four pipe free-standing steel chimneys.
The purpose of this utility model reaches by following measure: power plant four pipe free-standing steel chimneys, it is characterized in that it comprises is positioned at four steel stacks 1 and the connection steel construction piece 2 that is connected steel stack 1, described steel stack 1 and connect layouts that be square between the steel construction piece 2, four steel stacks 1 are positioned on four points of the layout that is square.
In technique scheme, described steel stack 1 has maintenance elevator 3 with the inboard that is connected steel construction piece 2.
In technique scheme, it also comprises two Y type flues 4, and each Y type flue 4 feeds two adjacent steel stacks 1 respectively.
In technique scheme, described have coal transporting trestle 5 below two relative connection steel construction pieces 2, and described coal transporting trestle 5 two ends are furnished with transfer station 6 and bunker bay 7.
In technique scheme, described have coal transporting trestle 5 below two relative connection steel construction pieces 2, and described coal transporting trestle 5 two ends are furnished with transfer station 6 and bunker bay 7, and described coal transporting trestle 5 is arranged between two Y type flues 4.
The utility model power plant four pipe free-standing steel chimneys have following advantage:
1., by structure optimization type selecting to steel stack, the as a whole space of whole steel stack pylon structure behind the employing four pipe free-standing steel chimneys, and structural system plane and facade body rule, the total form is along the center line symmetric arrangement of both direction, and structure is stressed evenly, reasonable in each direction.
2., by system research and analysis process system layout as can be known, for high parameter and big capacity unit (as: 2 * 600MW, 2 * 1000MW etc.) innovation ground in power plant adopts four steel chimneys can realize the coordinating and unifying of its function of use and structure function fully, demonstrates fully advantage and the optimization function of design as power plant construction.
3., four pipe free-standing steel chimneys have been cancelled the whole steel concrete urceolus in the conventional steel inner cylinder sleeve chimney, effective syndeton between each steel chimney adopts the good steel truss of economy, the steel pipe of braced structures preferred cross-sections function admirable, can effectively control the superstructure cost of chimney, simultaneously because the Foundation Design amount can be optimized and reduce to the very big reduction of the whole deadweight of chimney, thereby realize the reduction of whole chimney works cost, obtain favorable economic benefit.
4., fully phased out the steel concrete urceolus of conventional steel inner cylinder sleeve chimney by four pipe free-standing steel chimneys, whole thus chimney bottom external diameter generally tapers to 23.5～25.5m from 28～35m (2 * 1000MW unit), realize that main building A is discharged to about the corresponding 5m of dwindling of distance at chimney center, simultaneously, the chimney bottom external diameter is along vertically same optimization of main building, realized by the chimney OVERALL OPTIMIZA-TION DESIGN FOR being to arrange behind the stove of technology to reserve more abundant space, avoid the influence of chimney raft to periphery bases such as electrostatic precipitator bases effectively, the occupation of land index to the power plant main building has played good optimization function on the whole.
5., be optimized by center to center distance four pipe free-standing steel chimneys, go up the coal scheme behind the side coal bunker stove that can more ideally realize adopting in the power plant, can realize adopting normal tape conveyer coal transporting trestle between the smoke evacuation tube of chimney, to pass through smoothly, can realize the optimization of transfer station, improve the construction investment that to save coal handling system when failing coal efficient to defeated coal channel between the bunker bay; Simultaneously, the new approaches and the new environment that also provide of the innovative design of four pipe free-standing steel chimney structural concepts for the optimization and the innovation of process system behind the stove.
6., for four pipe free-standing steel chimneys, whole chimney superstructure has adopted the steel work of reusable edible after the cancellation of whole steel concrete urceolus, the advantage of its environmental protection is for the today of advocating sustainable development energetically, for advocating the today of developing a circular economy energetically, have very important social benefit and significance of times.
7., whole chimney superstructure has adopted steel work after the cancellation of whole steel concrete urceolus, can guarantee the construction quality of whole chimney well, domestic construction level can be realized fully simultaneously, see the overall difficulty of construction that can reduce chimney from analysis-by-synthesis, can accelerate the construction period of chimney reality effectively and shorten the overall construction period of chimney.
8., the proposition of four pipe free-standing steel chimney brand new forms, the characteristics of domestic pair of steel inner cylinder sleeve chimney conventional structure type selecting have been broken through, broken the too single present situation of power plant chimney profile, provide a good platform for chimney architectural design personnel under satisfying the prerequisite of its function of use fully show landscape design and creative design in the power plant, will promote constantly to incorporate in power plant's design the design concept of the sense of modernness and the architectural aesthetics effectively.
Description of drawings
Fig. 1 is the structural concept plane sketch of the utility model four pipe free-standing steel chimneys.
Fig. 2 is the process optimization scheme plane sketch of the utility model four pipe free-standing steel chimneys.
Fig. 3 is the A-A cut-away view of figure one.
Fig. 4 is the B-B cut-away view of figure one.
1. steel smoke evacuation tube among the figure, 2. connect steel work, 3. maintenance elevator, 4. flue, 5. coal transporting trestle, 6. transfer station, 7. bunker bay.
The specific embodiment
Describe performance of the present utility model in detail below in conjunction with accompanying drawing, but they do not constitute to qualification of the present utility model, simultaneously by illustrating that advantage of the present utility model will become clear more and understands easily.
The utility model power plant four pipe free-standing steel chimneys, it comprises and is positioned at four steel stacks 1 and 2, two Y types of the connection steel construction piece flue 4 that is connected steel stack 1 that each Y type flue 4 feeds two adjacent steel stacks 1 (as shown in Figure 2) respectively.Layout is square between described steel stack 1 and the connection steel construction piece 2, four steel stacks 1 are positioned on four points arranging that are square (as shown in Figure 1), steel stack 1 has maintenance elevator 3 with the inboard that is connected steel construction piece 2, below two relative connection steel construction pieces 2, coal transporting trestle 5 is arranged, described coal transporting trestle 5 is furnished with transfer station 6 and bunker bay 7, and described coal transporting trestle 5 is arranged between two Y type flues 4 (as shown in Figure 2).
My institute is in conjunction with the successful experience of a plurality of scientific research projects and the working drawing project implementation, carry out wind tunnel model test and digital-to-analogue analysis under the multiple condition, and contrast targetedly and analyze, provide the correct and reasonable values of parameter in structure design such as four pipe free-standing steel chimney wind load bodily form coefficients, wind fluttering factor.
Utilization is as ANSYS, the finite element analysis computation program that STAAD.Pro etc. are advanced is both at home and abroad carried out whole finite element and space behavior etc. to four pipe free-standing steel chimney schemes and is analyzed and study, carry out detail calculation and analysis at structure stress, to wind load, seismic load, temperature load, load action effects such as basic slope are carried out detail analysis and research, provide temperature load, the computational analysis scheme of loads such as basic slope, controlled factor in clear and definite its structure design also proposes corresponding solution, corresponding design guidance principle is proposed, and compare and prove with the steel inner cylinder sleeve chimney of routine, realize objective function of optimization design, for its safety economy design provides foundation, be beneficial to its promotion and application in similar engineering design from now on.
Need to prove: to those of ordinary skill in the art, can also make some changes or distortion to the utility model technology under the prerequisite that does not change the utility model principle, this belongs to the protection domain of the utility model technology equally.The utility model is equally applicable to other field that fume emission device (structure) chimney need be set.
Claims (5)
1, power plant four pipe free-standing steel chimneys, it is characterized in that it comprises is positioned at four steel stacks (1) and the connection steel construction piece (2) that is connected steel stack (1), described steel stack (1) and connect layouts that be square between the steel construction piece (2), four steel stacks (1) are positioned on four points of the layout that is square.
2, free-standing steel chimneys are managed in power plant four according to claim 1, it is characterized in that described steel stack (1) has maintenance elevator (3) with the inboard that is connected steel construction piece (2).
3, free-standing steel chimneys are managed in power plant four according to claim 1 and 2, it is characterized in that it also comprises two Y type flues (4), and each Y type flue (4) feeds two adjacent steel stacks (1) respectively.
4, free-standing steel chimneys are managed in power plant four according to claim 1 and 2, it is characterized in that in the below of two relative connection steel construction pieces (2) coal transporting trestle (5) being arranged, and described coal transporting trestle (5) two ends are furnished with transfer station (6) and bunker bay (7).
5, free-standing steel chimneys are managed in power plant four according to claim 3, it is characterized in that coal transporting trestle (5) being arranged in the below of two relative connection steel construction pieces (2), described coal transporting trestle (5) two ends are furnished with transfer station (6) and bunker bay (7), and described coal transporting trestle (5) is arranged between two Y type flues (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200656167U CN201172986Y (en) | 2008-02-03 | 2008-02-03 | Four-tube self-supporting steel chimney for power generating plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200656167U CN201172986Y (en) | 2008-02-03 | 2008-02-03 | Four-tube self-supporting steel chimney for power generating plant |
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| Publication Number | Publication Date |
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| CN201172986Y true CN201172986Y (en) | 2008-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200656167U Expired - Fee Related CN201172986Y (en) | 2008-02-03 | 2008-02-03 | Four-tube self-supporting steel chimney for power generating plant |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102373825A (en) * | 2010-08-19 | 2012-03-14 | 中冶天工集团有限公司 | Method for installing steel structure quadruplet pipe chimney |
| CN103924824A (en) * | 2014-04-15 | 2014-07-16 | 江西省电力设计院 | Four-tube conjoint chimney |
| CN103927409A (en) * | 2014-03-14 | 2014-07-16 | 河北省电力勘测设计研究院 | Finite element analysis based concrete chimney stress analysis system |
| CN107023212A (en) * | 2017-04-19 | 2017-08-08 | 中机国能电力工程有限公司 | A kind of corrosion-resistant, antidetonation free-standing steel chimney |
| CN107869149A (en) * | 2017-11-22 | 2018-04-03 | 山东电力工程咨询院有限公司 | Building or structures Construction Organization Method after a kind of stove |
-
2008
- 2008-02-03 CN CNU2008200656167U patent/CN201172986Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102373825A (en) * | 2010-08-19 | 2012-03-14 | 中冶天工集团有限公司 | Method for installing steel structure quadruplet pipe chimney |
| CN102373825B (en) * | 2010-08-19 | 2013-06-12 | 中冶天工集团有限公司 | Method for installing steel structure quadruplet pipe chimney |
| CN103927409A (en) * | 2014-03-14 | 2014-07-16 | 河北省电力勘测设计研究院 | Finite element analysis based concrete chimney stress analysis system |
| CN103924824A (en) * | 2014-04-15 | 2014-07-16 | 江西省电力设计院 | Four-tube conjoint chimney |
| CN107023212A (en) * | 2017-04-19 | 2017-08-08 | 中机国能电力工程有限公司 | A kind of corrosion-resistant, antidetonation free-standing steel chimney |
| CN107869149A (en) * | 2017-11-22 | 2018-04-03 | 山东电力工程咨询院有限公司 | Building or structures Construction Organization Method after a kind of stove |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CENTRAL SOUTHERN CHINA ELECTRIC POWER DESIGN INSTI Free format text: FORMER OWNER: CENTRAL SOUTHERN CHINA ELECTRIC POWER DESIGN INSTITUTE, CHINA POWER ENGINEERING CONSULTING GROUP COR Effective date: 20150129 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150129 Address after: 430071 Wuchang District, Hubei, South Central Road No. two, No. 12, No. Patentee after: Co., Ltd of Central Southern China Electric Power Design Institute, China Power Engineering Consulting Group Corporation Address before: 430071 No. 668 Democratic Road, Wuchang District, Hubei, Wuhan (Central South Electric Power Design Institute) Patentee before: Central Southern China Electric Power Design Institute, China Power Engineering Consulting Group Cor |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081231 Termination date: 20170203 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |