CN210134683U - Main plant structure of power plant - Google Patents
Main plant structure of power plant Download PDFInfo
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- CN210134683U CN210134683U CN201920073602.8U CN201920073602U CN210134683U CN 210134683 U CN210134683 U CN 210134683U CN 201920073602 U CN201920073602 U CN 201920073602U CN 210134683 U CN210134683 U CN 210134683U
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Abstract
The utility model discloses a main plant structure of a power plant, which comprises a steam turbine room, a deoxidizing room and a bunker room; the deoxidizing room is composed of at least two rows of frame columns and a frame beam plate for connecting the frame columns; one side of the deoxidizing room is provided with at least one row of frame columns, and the frame columns are connected with the deoxidizing room through frame beam plates to form a coal bunker room. In the steam turbine room, a plurality of X-shaped inter-column section steel supports are arranged between any adjacent bent frame columns and/or between frame columns. In the coal bunker bay, any frame column is attached with a shear wall. By arranging the reinforced concrete bent frames, the shear walls and the inter-column section steel supports four types of lateral force resisting members, the space requirement of process pipeline arrangement is met, and the seismic performance of a factory building is improved; the material occupation ratio of the reinforced concrete structure of the whole system is high, the steel occupation ratio is low, and the manufacturing cost is greatly reduced. The structural member is flexible in arrangement, low in manufacturing cost and later maintenance cost, excellent in anti-seismic performance, particularly suitable for high seismic intensity areas, and strong in practicability and wide in applicability.
Description
Technical Field
The invention relates to a main plant structure, in particular to a main plant structure of a power plant, and belongs to the technical field of power civil engineering.
Background
The power plant is an important component of national energy construction, and the main factory building is the core building of the power plant. The structural system of the main power house of the power plant and the anti-seismic performance of the structural system are directly related to the safe and economic operation, the overhaul and the maintenance and the engineering cost of the power plant.
As the number of process pipelines in the main plant of the thermal power plant is large and the requirement on pipeline arrangement is high, the reinforced concrete shear wall structure or the reinforced concrete cylinder structure with better anti-seismic performance commonly used by civil buildings is difficult to be applied to the main plant structure of the thermal power plant in a large area. Therefore, in recent years, the main plants of newly built power plants in China mostly adopt reinforced concrete framed bent frame structure systems or steel structure systems. Particularly, in a low earthquake intensity area, a main power house of the power plant mostly adopts a reinforced concrete framed bent frame structure system, and the construction cost of the reinforced concrete structure system is low, and the later maintenance cost is low; in a high earthquake intensity area (the earthquake fortification intensity is 8 degrees or more), the reinforced concrete frame bent structure system is difficult to meet the requirements of national earthquake resistance standards and current standards on the structure system, so that the main plant of a power plant mostly adopts a steel structure system.
The steel structure system is divided into a pure frame steel structure system and a steel frame-supporting system. When the earthquake intensity is higher, the main power house of the power plant mainly adopts a steel frame-supporting structure system, and the steel frame-supporting structure generally needs to be provided with more supports, so that the arrangement, operation and maintenance space of the process pipeline is greatly limited. In addition, the steel structure system is high in one-time manufacturing cost and high in later maintenance cost, so that civil engineering cost can be greatly increased by adopting the steel structure system.
In view of the above-mentioned current situation at high earthquake intensity district thermal power plant main building structural style, the utility model provides a new structural style both can be nimble set up the anti side force component of structure to furthest's reduction structural component can reduce disposable investment and later maintenance cost again to the influence of process piping arrangement. In addition, the results of calculation and analysis of the main plant structure of the power plant show that under the condition of reasonable structure arrangement, the structural system improves the anti-seismic performance of the main plant structure and can meet the requirement of seismic fortification of high seismic intensity areas.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide the main factory building structure of the power plant, which has the advantages of flexible structural member arrangement, low manufacturing cost and later maintenance cost and excellent anti-seismic performance.
In order to achieve the above object, the present invention adopts the following technical solutions:
a main plant structure of a power plant comprises a steam turbine room, a deoxidizing room and a bunker room;
the deoxidizing room is composed of at least two rows of frame columns and a frame beam plate for connecting the frame columns;
at least one row of frame columns are arranged on one side of the deoxidizing room and are connected with the deoxidizing room through frame beam plates to form a coal bunker room;
at least one row of bent columns is arranged on the other side of the deoxidizing room, and a steam turbine room is formed by connecting a steel roof truss on the top with the deoxidizing room.
In the steam turbine room, a plurality of X-shaped inter-column section steel supports are arranged between any adjacent bent frame columns and/or between frame columns.
In the coal bunker bay, any frame column is attached with a shear wall.
In the steam turbine room, a plurality of rows of frame columns are arranged and connected with the row frame columns or the frame columns through frame beam plates.
The bent frame columns are connected with the steel roof truss in a hinged joint mode.
Furthermore, the inter-column steel supports are connected with the bent frame columns or the frame columns in a hinged joint mode.
Furthermore, the shear wall and the frame beam plate, and the frame column and the frame beam plate are connected in a rigid connection node mode.
The base materials of the frame column, the frame beam plate and the bent frame column are reinforced concrete.
The base material of the shear wall is reinforced concrete.
The main power house structure of the power plant is suitable for high earthquake intensity areas.
The invention has the advantages that:
according to the main plant structure of the power plant, the steam turbine room, the deoxidizing room and the coal bunker room are used as basic structures, and four types of lateral force resisting members such as reinforced concrete bent frames, reinforced concrete frames, column-to-column section steel supports and reinforced concrete shear walls are arranged, so that the space requirement of process pipeline arrangement is met, and the seismic performance of the main plant structure is improved; and the material occupation ratio of the reinforced concrete structure of the whole structure system is high, the steel occupation ratio is low, and the manufacturing cost of a main workshop is greatly reduced.
The main power house structure of the power plant has the advantages of flexible structural member arrangement, low manufacturing cost and later maintenance cost, excellent anti-seismic performance, strong practicability and wide applicability, and is particularly suitable for high-seismic intensity areas.
Drawings
Fig. 1 is a schematic structural diagram of a main building structure of a power plant according to the present invention.
Fig. 2 is a top view of a schematic structural diagram of a main building structure of a power plant according to the present invention.
Fig. 3 is a front view of a schematic structural diagram of a main building structure of a power plant according to the present invention.
Fig. 4 is a left side view of a schematic structural diagram of a main building structure of a power plant according to the present invention.
The designations in the drawings have the following meanings: 1. steam turbine room, 2, deoxidization room, 3, coal bunker room, 4, framed bent column, 5, frame column, 6, frame beam slab, 7, steel roof truss, 8, column steel support, 9 and shear wall.
Detailed Description
The invention is described in detail below with reference to the figures and the embodiments.
As shown in attached figure 1, the main plant structure of the power plant comprises an oxygen removal room 2, a steam turbine room 1 and a coal bunker room 3 on two sides.
The deoxidizing bay 2 includes two rows of frame columns 5, and the frame beam plates 6 are connected with the two rows of frame columns 5 in a rigid joint manner and separate the deoxidizing bay 2 into layers.
One side of the deoxidizing room 2 is externally provided with a row of bent columns 4 which are connected with the deoxidizing room 2 through a steel roof truss 7 hinged to the top to form a steam turbine room 1. Two rows of frame columns 5 are arranged in the steam turbine room 1, and are respectively connected with wall columns (a row of frame columns 4 and a frame column 5) on two sides of the steam turbine room 1 through frame beam plates 6 in a rigid connection node mode, and the steam turbine room 1 is divided into small layers.
In addition, an X-shaped inter-column steel support 8 is arranged between any adjacent bent frame columns 4 and frame columns 5 in the steam turbine room 1. Preferably, the inter-column steel supports 8 are arranged at intervals.
And a row of frame columns 5 are arranged outside the other side of the deoxidizing room 2, and are connected with the deoxidizing room 2 through all layers of frame beam plates 6 in a rigid joint mode to form the coal bunker room 3. And the shear wall 9 is connected with the frame column 5 in the coal bunker bay 3 in a rigid connection node mode. Preferably, the shear walls 9 are arranged in pairs and are respectively arranged on the frame columns 5 of the wall columns on the two sides of the coal bunker bay 3.
According to the use demand, can add a plurality of rows of frame post 5 and frame beam slab 6 in deoxidization room 2, steam turbine room 1, coal bunker 3 to increase the use volume, simultaneously, the corresponding intercolumnar shaped steel that adds supports 8, shear force wall 9.
Preferably, the base materials of the frame columns 5, the frame beam plates 6, the bent columns 4 and the shear walls 9 are reinforced concrete.
The invention discloses a main power house structure of a power plant, which is provided with four types of lateral force resisting components: reinforced concrete bent (bent columns 4 in rows), reinforced concrete frames (frame columns 5 and frame beam plates 6), steel supports 8 among the columns and reinforced concrete shear walls 9.
The steam turbine room 1 has a large number of pipelines and small diameter, the capacity of avoiding structural members by the pipelines in the area is good, two sides of the steam turbine room 1 are provided with two types of lateral force resisting structural systems of reinforced concrete frames and reinforced concrete bent frames, and the influence of the structural members on the arrangement of process pipelines can be reduced to the maximum extent by flexibly adjusting the arrangement of reinforced concrete frame columns 5 and reinforced concrete bent frames 4; in addition, the section steel supports are arranged among partial reinforced concrete frames, the lateral stiffness of the steam turbine room 1 area can be greatly improved, the anti-seismic performance of the whole main workshop is optimized, and the section steel supports with small diameters can be appropriately avoided.
The coal bunker bay 3 has a small number of pipelines and a large diameter, the capacity of avoiding structural members by the pipelines in the area is poor, and the coal bunker bay 3 is provided with a reinforced concrete frame and reinforced concrete shear walls 9 flexibly arranged at intervals and has good adaptability to the pipeline arrangement of the coal bunker bay 3; in addition, the reinforced concrete shear walls 9 arranged at intervals and the section steel supports distributed among the frames are stressed in a coordinated mode, so that the lateral stiffness of the whole main workshop is greatly improved, and the seismic performance of the whole main workshop is optimized.
The structural system of the invention is under the earthquake action, the steel strut 8 between columns and the reinforced concrete shear wall 9 are taken as lateral force resisting members to bear force together to form a first defense line for earthquake defense; along with the increase of earthquake, plastic hinge phenomenon appears at the bottom of the reinforced concrete shear wall 9 and the end part of the steel support 8 between the columns, and part of earthquake shear force is transmitted to the reinforced concrete frame and the reinforced concrete bent frame, so that the four types of lateral force resisting members bear force simultaneously.
In addition, the ductility of the reinforced concrete frame and the reinforced concrete bent frame is far higher than that of the bottom of the reinforced concrete shear wall 9 and the steel supports 8 between the columns, so that a second defense line for seismic fortification is formed, and the structure can be ensured not to collapse under the condition of large earthquake.
In the practical engineering application, matched with the technical specialties,
firstly, determining the axial line positions of a bent frame and a frame of a main plant structure;
then, determining the position of the reinforced concrete shear wall 9, and calculating and adjusting the number and the size of the reinforced concrete shear wall 9 according to the requirement of seismic fortification;
finally, determining the position of the section steel support, and adjusting the section steel size of the section steel support according to the structural integral anti-seismic index displayed by the calculation result;
finally, after the main plant model is determined, analysis design is carried out on each load working condition by adopting calculation software, so that the reinforced concrete bent, the reinforced concrete frame and the reinforcing bars of the reinforced concrete shear wall 9 are determined.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent variations fall within the scope of the present invention.
Claims (7)
1. A main plant structure of a power plant is characterized by comprising a steam turbine room, a deoxidizing room and a bunker room;
the deoxidizing room is composed of at least two rows of frame columns and a frame beam plate for connecting the frame columns;
at least one row of frame columns are arranged on one side of the deoxidizing room and are connected with the deoxidizing room through frame beam plates to form a coal bunker room;
at least one row of bent columns is arranged on the other side of the deoxidizing room, and the deoxidizing room is connected with a steel roof truss on the top to form a steam turbine room;
in the steam turbine room, a plurality of X-shaped inter-column section steel supports are arranged between any adjacent bent columns and/or between frame columns;
in the coal bunker bay, any frame column is attached with a shear wall;
and a plurality of rows of frame columns are arranged in the steam turbine room and connected with the row frame columns or the frame columns through frame beam plates.
2. The power plant main building structure according to claim 1, wherein said bent frame columns are connected to the steel roof truss by means of hinged joints.
3. The power plant main building structure according to claim 1, wherein the inter-column steel supports are connected with the bent frame columns or the frame columns by means of hinged joints.
4. The power plant main building structure according to claim 1, wherein the shear walls and the frame beam plates, and the frame columns and the frame beam plates are connected through rigid connection joints.
5. The power plant main building structure according to claim 1, wherein the base material of the frame columns, the frame beam plates and the bent columns is reinforced concrete.
6. The power plant main building structure according to claim 1, wherein the base material of the shear wall is reinforced concrete.
7. The power plant main building structure according to any one of claims 1-6, adapted for use in areas of high seismic intensity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920073602.8U CN210134683U (en) | 2019-01-17 | 2019-01-17 | Main plant structure of power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920073602.8U CN210134683U (en) | 2019-01-17 | 2019-01-17 | Main plant structure of power plant |
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| Publication Number | Publication Date |
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| CN210134683U true CN210134683U (en) | 2020-03-10 |
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| CN201920073602.8U Active CN210134683U (en) | 2019-01-17 | 2019-01-17 | Main plant structure of power plant |
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| CN (1) | CN210134683U (en) |
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