CN103088906A - Bearing type coal bucket shock adsorption structure for improving anti-seismic property of heat-engine plant main power house - Google Patents
Bearing type coal bucket shock adsorption structure for improving anti-seismic property of heat-engine plant main power house Download PDFInfo
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Abstract
The invention relates to a bearing type coal bucket shock absorption structure for improving an anti-seismic property of a heat-engine plant main power house. The bearing type coal bucket shock absorption structure for improving the anti-seismic property of the heat-engine plant main power house comprises a steel coal bucket, a coal bucket beam, frame columns, horizontal shock insulation support seats and dampers, wherein the horizontal shock insulation support seats are connected with the coal bucket and the coal bucket beam, and the horizontal shock insulation support seats provide large vertical rigidity so as to bear the gravity of the coal bucket and meanwhile provide little horizontal rigidity so as to achieve a shock insulation function of the bearing type coal bucket. According to the reasonable design of the horizontal rigidity of the horizontal shock insulation support seats, the vibrating period of a system formed by the horizontal shock insulation support seats and the coal bucket is enabled to be approximate to a period under the effect of a major earthquake in a main power house structure so as to achieve a frequency modulation function of the bearing type bucket. The dampers are connected with the coal bucket and the frame columns inside a horizontal plane. When the coal bucket and the frame columns relatively move, the dumpers provide larger damping force so as to limit a moving range of the bearing type coal bucket and additional damping of the structure is improved at the same time. The bearing type coal bucket shock absorption structure for improving the anti-seismic property of the heat-engine plant main power house can be used for seismic resistance and reinforcement of a new-built heat-engine main power house structure or an old heat-engine main power house structure.
Description
[technical field]
The present invention relates to the seismic hardening technical field of seismic design, damping control and the old Power Plant Main House structure of newly-built Power Plant Main House, particularly a kind of supporting type coal bunker shock-damping structure.
[background technology]
China has recurred and has repeatedly had than the earthquake of havoc power in recent years, the Loss of Life and property that causes of Wenchuan earthquake, Yushu earthquake wherein, and the whole nation is for it with sad.China has a lot of large thermal power plants to be based upon the high earthquake intensity area, and in earthquake, thermal power plant should guarantee enough safety, in order to vital electric energy is provided during the disaster relief after shake.Thereby alleviate the failure loss in geological process of Power Plant Main House structure and have important economic worth and social effect.
The Power Plant Main House general conventional method that adopts is at present carried out seismic design, namely by the seismic energy under the large shake effect of elastic plastic behavior dissipation of member.And the fuel of large-size thermal power plant is mainly coal, requirement according to technology arrangement generally all will be equipped with 5-6 coal bunker to every boiler, the coal storage of each coal bunker is generally the 800-1000 ton, structure of main power house is according to the requirement of process system, the position that coal bunker is arranged is all very high, generally in 30-40 rice left and right.Because the quality of coal is huge, active position is high, therefore the horizontal earthquake action that whole structure of main power house is produced also can be very large, particularly at high intensity Zone, this is one of principal element that affects the structure of main power house anti-seismic performance, cause the Power Plant Main House member section that designs according to a conventional method excessive, and anti-seismic performance is undesirable.
[summary of the invention]
The object of the invention is to improve the anti-seismic performance of traditional Power Plant Main House structure, a kind of supporting type coal bunker shock-damping structure for improving the Power Plant Main House anti-seismic performance is proposed, to reduce the coal bunker geological process, increase the structure additional damping, to realize the coal bunker fm role, the final target that realizes improving the Power Plant Main House structural seismic performance.This cushion technique is applicable to highly seismic region Power Plant Main House structure.
To achieve these goals, the present invention has taked following technical scheme:
A kind of supporting type coal bunker shock-damping structure for improving the Power Plant Main House anti-seismic performance comprises steel coal hopper, frame column and coal bunker framework; Steel coal hopper is supported on the coal bunker framework, and the periphery of steel coal hopper is provided with skirtboard; The coal bunker framework is fixed on frame column; Be provided with some steel supports bottom the skirtboard of steel coal hopper, the coal bunker framework is provided with some horizontal seismic isolation bearings; Some steel supports of steel coal hopper are pressed on corresponding horizontal seismic isolation bearing; Frame column connects steel coal hopper by some horizontally disposed dampers.
The present invention further improves and is: steel coal hopper comprises columnar coal bunker top and conical coal bunker bottom; Skirtboard is arranged at the lower, outer perimeter place on coal bunker top.
The present invention further improves and is: described coal bunker framework is octagon coal bunker framework, and this octagon coal bunker framework is held concurrently coal bunker crossbeam, two coal bunker longerons and four coal bunker cant beams around forming by two cruciform bracings; Described frame column comprises four; Two cruciform bracings coal bunker crossbeam of holding concurrently laterally is fixed between two corresponding frame columns, and two coal bunker longeron parallel longitudinals are fixed in two cruciform bracings holds concurrently between the coal bunker crossbeam, and adjacent coal bunker longeron and cruciform bracing are held concurrently and be fixed with the coal bunker cant beam between the coal bunker crossbeam; Described steel support and horizontal seismic isolation bearing are eight, respectively are provided with a horizontal seismic isolation bearing on eight limits of octagon coal bunker framework; Eight steel support correspondences are pressed on eight horizontal seismic isolation bearings.
The present invention further improves and is: four vertical every sides of frame column are fixedly connected with by two cruciform bracings.
The present invention further improves and is: an end of described damper is hinged by damper connector and steel coal hopper, and an other end and frame column three-dimensional are hinged.
The present invention further improves and is: described damper is eight, and two dampers share a damper connector, and the skirtboard of damper connector and steel coal hopper is welded and fixed; Be provided with the damper connector that a pair of damper and a pair of damper share between the pair of frames post.
The present invention further improves and is: described horizontal seismic isolation bearing is rubber pad, laminated rubber bearing or frictional disk.
The present invention further improves and is: described damper is Effects of Viscous Fluid Damper, viscoelastic damper, lead damper, frcition damper, mild steel damper or marmem damper.
A kind of supporting type coal bunker shock-damping structure for improving the Power Plant Main House anti-seismic performance of the present invention, the horizontal seismic isolation bearing connects coal bunker and coal bunker beam, the horizontal seismic isolation bearing provides the large vertical rigidity gravity with the supporting coal bunker, provides simultaneously little horizontal rigidity to realize the shock insulation function of supporting type coal bunker; By the horizontal rigidity of appropriate design horizontal seismic isolation bearing, make the vibration period of the system that horizontal seismic isolation bearing and coal bunker form close in the cycle of structure of main power house under large shake effect, to realize the frequency modulation function of supporting type coal bunker; Damper connects coal bunker and frame column in horizontal plane, damper provides larger damping force when coal bunker and frame column relative motion, with the motion amplitude of restriction supporting type coal bunker, improves simultaneously the additional damping of structure.
With respect to prior art, the present invention has following beneficial effect:
After connecting coal bunker and Vierendeel girder by the horizontal seismic isolation bearing, can obviously alleviate on the one hand the absolute acceleration response of coal bunker, thereby reduce the side direction geological process of structure, the fm role of supporting type coal bunker can play damping effect on the other hand; After connecting coal bunker and frame column by damper, can alleviate on the one hand the motion amplitude of supporting type coal bunker, can utilize the relative deformation of coal bunker and frame column to order about damper work on the one hand in addition, thereby improve the additional damping of structure.Being used in conjunction with of shock isolating pedestal and damper finally can increase substantially the anti-seismic performance of structure.In addition, be restricted when using in some highly seismic region conventional steel tendon concrete frame structure form, but after adopting supporting type coal bunker cushion technique, the reinforced concrete structure form also can adopt, and the construction costs of millions of yuans is saved in the construction that can be the large thermal power plant main building.
[description of drawings]
Fig. 1 is the overall schematic of a kind of supporting type coal bunker shock-damping structure for improving the Power Plant Main House anti-seismic performance of proposing of the present invention;
Fig. 2 is the top view of supporting type coal bunker shock-damping structure shown in Figure 1;
Fig. 3 is the lateral view of supporting type coal bunker shock-damping structure shown in Figure 2.
[specific embodiment]
Below in conjunction with the drawings and specific embodiments, the present invention is further elaborated.
As shown in Figure 1 to Figure 3, a kind of supporting type coal bunker shock-damping structure for improving the Power Plant Main House anti-seismic performance of the present invention comprises 8 horizontal seismic isolation bearings 1,8 dampers 2,1 steel coal hopper 3,4 damper connectors 4,4 frame columns 5 and coal bunker beam.
The coal bunker beam comprises two cruciform bracings hold concurrently coal bunker crossbeam 60, two coal bunker longerons 61 and four coal bunker cant beams 62.
4 frame columns 5 are horizontal, are fixedly connected with by two cruciform bracings coal bunker crossbeam 60 of holding concurrently, and vertical every side is fixedly connected with by two cruciform bracings 51.
The vertical setting of coal bunker crossbeam 60 of holding concurrently of two cruciform bracings interior parallel two coal bunker longerons 61 that are fixed with of coal bunker crossbeam 60 of holding concurrently, coal bunker longeron 61 and cruciform bracing, adjacent coal bunker longeron 61 and cruciform bracing are held concurrently and are fixed with coal bunker cant beam 62 between coal bunker crossbeam 60.Two cruciform bracings are held concurrently between coal bunker crossbeam 60, two coal bunker longerons 61 and four coal bunker cant beams 62 around forming an octagon coal bunker framework.Skirtboard 310 bottoms of steel coal hopper 3 are provided with 8 steel supports, respectively are provided with a horizontal seismic isolation bearing 1 on eight limits of octagon coal bunker framework; Steel coal hopper 3 is supported on octagon coal bunker framework, and 8 steel support correspondences are pressed on 8 horizontal seismic isolation bearings 1.
One end of damper 2 is hinged by damper connector 4 and steel coal hopper 3, and an other end and frame column 5 three-dimensionals are hinged; Two dampers 2 share a damper connector 4, and damper connector 4 is welded and fixed with the skirtboard 310 of steel coal hopper 3; Be provided with the damper connector 4 that a pair of damper 2 and a pair of damper 2 share between pair of frames post 5.
Horizontal seismic isolation bearing 1 can adopt rubber pad, laminated rubber bearing, frictional disk etc.; Horizontal seismic isolation bearing 1 has larger vertical rigidity, to bear the vertical load of steel coal hopper 3; Horizontal seismic isolation bearing 1 horizontal rigidity is low, can obviously alleviate the absolute acceleration response of coal bunker, and vibration period and the structural cycle of the coal bunker system that adopts that horizontal seismic isolation bearing 1 connects are close, to play the frequency modulation cushioning effect; Alleviate integrally-built seismic response by fm role.Damper 2 can adopt Effects of Viscous Fluid Damper, viscoelastic damper, lead damper, frcition damper, mild steel damper, marmem damper etc., damper 2 provides larger damping force, can reduce the displacement amplitude of steel coal hopper 3, prevent the collision of steel coal hopper 3 and frame column 5; Damper 2 can also improve the additional damping of structure.Horizontal seismic isolation bearing 1 is used in conjunction with damper 2, can improve the anti-seismic performance of structure.
Claims (8)
1. a supporting type coal bunker shock-damping structure that is used for improving the Power Plant Main House anti-seismic performance, is characterized in that: comprise steel coal hopper (3), frame column (5) and coal bunker framework; Steel coal hopper (3) is supported on the coal bunker framework, and the periphery of steel coal hopper (3) is provided with skirtboard (310); The coal bunker framework is fixed on frame column (5); Be provided with some steel supports bottom the skirtboard (310) of steel coal hopper (3), the coal bunker framework is provided with some horizontal seismic isolation bearings (1); Some steel supports of steel coal hopper (3) are pressed on corresponding horizontal seismic isolation bearing (1); Frame column (5) connects steel coal hopper (3) by some horizontally disposed dampers.
2. the supporting type coal bunker shock-damping structure for improving the Power Plant Main House anti-seismic performance according to claim 1, it is characterized in that: steel coal hopper (3) comprises columnar coal bunker top (31) and conical coal bunker bottom (32); Skirtboard (310) is arranged at the lower, outer perimeter place on coal bunker top (31).
3. the supporting type coal bunker shock-damping structure for improving the Power Plant Main House anti-seismic performance according to claim 1, it is characterized in that: described coal bunker framework is octagon coal bunker framework, and this octagon coal bunker framework is held concurrently coal bunker crossbeam (60), two coal bunker longerons (61) and four coal bunker cant beams (62) around forming by two cruciform bracings; Described frame column (5) comprises four; Two cruciform bracings coal bunker crossbeam (60) of holding concurrently laterally is fixed between corresponding two frame columns (5), two coal bunker longerons (61) parallel longitudinal is fixed in two cruciform bracings holds concurrently between coal bunker crossbeam (60), and adjacent coal bunker longeron (61) and cruciform bracing are held concurrently and be fixed with coal bunker cant beam (62) between coal bunker crossbeam (60); Described steel support and horizontal seismic isolation bearing (1) are eight, respectively are provided with a horizontal seismic isolation bearing (1) on eight limits of octagon coal bunker framework; Eight steel support correspondences are pressed on eight horizontal seismic isolation bearings (1).
4. the supporting type coal bunker shock-damping structure for improving the Power Plant Main House anti-seismic performance according to claim 3, it is characterized in that: the vertical every side of four frame columns (5) is fixedly connected with by two cruciform bracings (51).
5. the supporting type coal bunker shock-damping structure for improving the Power Plant Main House anti-seismic performance according to claim 3, it is characterized in that: an end of described damper (2) is hinged by damper connector (4) and steel coal hopper (3), and an other end and frame column (5) three-dimensional are hinged.
6. the supporting type coal bunker shock-damping structure for improving the Power Plant Main House anti-seismic performance according to claim 5, it is characterized in that: described damper (2) is eight, two dampers (2) share a damper connector (4), and damper connector (4) is welded and fixed with the skirtboard (310) of steel coal hopper (3); Be provided with the damper connector (4) that a pair of damper (2) and a pair of damper (2) share between pair of frames post (5).
7. the supporting type coal bunker shock-damping structure for improving the Power Plant Main House anti-seismic performance according to claim 1, it is characterized in that: described horizontal seismic isolation bearing (1) is rubber pad, laminated rubber bearing or frictional disk.
8. the supporting type coal bunker shock-damping structure for improving the Power Plant Main House anti-seismic performance according to claim 1, it is characterized in that: described damper (2) is Effects of Viscous Fluid Damper, viscoelastic damper, lead damper, frcition damper, mild steel damper or marmem damper.
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| CN201310027983.3A CN103088906B (en) | 2013-01-24 | 2013-01-24 | Bearing type coal bucket shock adsorption structure for improving anti-seismic property of heat-engine plant main power house |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103774771A (en) * | 2014-01-26 | 2014-05-07 | 智性科技南通有限公司 | Rigidity and dampness integrating horizontal omnidirectional tuned mass damper |
| CN105544760A (en) * | 2015-12-02 | 2016-05-04 | 国核电力规划设计研究院 | Suspension type coal bunker damping structure improving heat-engine plant main workshop antivibration performance |
| CN106115228A (en) * | 2016-06-30 | 2016-11-16 | 禹州市神运机械有限公司 | A kind of power equipment factory steel scuttle |
| CN107555000A (en) * | 2017-10-31 | 2018-01-09 | 中国能源建设集团广东省电力设计研究院有限公司 | Coal bunker supporting construction and coal bunker support frame |
| CN110259205A (en) * | 2019-07-02 | 2019-09-20 | 山东电力建设第三工程有限公司 | A kind of comprehensive antidetonation toughness mill construction system using every cushion technique |
| CN114856059A (en) * | 2022-03-01 | 2022-08-05 | 国网北京市电力公司 | Seismic isolation and reduction floor system for electrical equipment |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103774771A (en) * | 2014-01-26 | 2014-05-07 | 智性科技南通有限公司 | Rigidity and dampness integrating horizontal omnidirectional tuned mass damper |
| CN103774771B (en) * | 2014-01-26 | 2016-05-18 | 智性科技南通有限公司 | A kind of rigidity and the integrated horizontal omnirange tuned mass damper of damping |
| CN105544760A (en) * | 2015-12-02 | 2016-05-04 | 国核电力规划设计研究院 | Suspension type coal bunker damping structure improving heat-engine plant main workshop antivibration performance |
| CN106115228A (en) * | 2016-06-30 | 2016-11-16 | 禹州市神运机械有限公司 | A kind of power equipment factory steel scuttle |
| CN107555000A (en) * | 2017-10-31 | 2018-01-09 | 中国能源建设集团广东省电力设计研究院有限公司 | Coal bunker supporting construction and coal bunker support frame |
| CN110259205A (en) * | 2019-07-02 | 2019-09-20 | 山东电力建设第三工程有限公司 | A kind of comprehensive antidetonation toughness mill construction system using every cushion technique |
| CN114856059A (en) * | 2022-03-01 | 2022-08-05 | 国网北京市电力公司 | Seismic isolation and reduction floor system for electrical equipment |
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| CN103088906B (en) | 2014-12-10 |
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Owner name: NORTHWEST ELECTRIC POWER DESIGN INSTITUTE OF CHINA Free format text: FORMER NAME: NORTHWEST ELECTRIC POWER DESIGN INSTITUTE, CHINA POWER ENGINEERING CONSULTING GROUP CORPORATION |
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Address after: 710075 Xi'an province high tech Development Zone, unity South Road, No. 22, No. Patentee after: NORTHWEST ELECTRIC POWER DESIGN INSTITUTE CO., LTD. OF CHINA POWER ENGINEERING CONSULTING GROUP Address before: 710075 Xi'an province high tech Development Zone, unity South Road, No. 22, No. Patentee before: Northwest Electric Power Design Institute, China Power Engineering Consulting Group Corporation |