CN203160759U - Bearing type coal bucket vibration damping structure for improving seismic performance of thermal power plant main workshop - Google Patents
Bearing type coal bucket vibration damping structure for improving seismic performance of thermal power plant main workshop Download PDFInfo
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- CN203160759U CN203160759U CN 201320040581 CN201320040581U CN203160759U CN 203160759 U CN203160759 U CN 203160759U CN 201320040581 CN201320040581 CN 201320040581 CN 201320040581 U CN201320040581 U CN 201320040581U CN 203160759 U CN203160759 U CN 203160759U
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- coal bunker
- damper
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Abstract
The utility model relates to a bearing type coal bucket vibration damping structure for improving seismic performance of a thermal power plant main workshop. The bearing type coal bucket vibration damping structure for improving the seismic performance of the thermal power plant main workshop comprises a steel coal bucket, a coal bucket girder, a frame column, a horizontal seismic isolation support and a damper, wherein the horizontal seismic isolation support is connected with the coal bucket and the coal bucket girder, the horizontal seismic isolation support provides lager vertical rigidity to bear the weight of the coal bucket, and provides small horizontal rigidity to achieve the seismic isolation performance of the bearing type coal bucket. The horizontal rigidity of the horizontal seismic isolation support is reasonably designed, so that the vibration period of a system formed by the horizontal seismic isolation support and the coal bucket is similar to the period of a main workshop structure under the effect of a large earthquake, and the frequency modulation function of the bearing type coal bucket is achieved. The damper is connected with the coal bucket and the frame column in a horizontal plane, when the coal bucket and the frame column relatively move, the damper provides large damping force to limit the motion scale of the bearing type coal bucket and improve additional damping of the structure. The bearing type coal bucket vibration damping structure for improving the seismic performance of the thermal power plant main workshop can be used for seismic reinforcement of a new-built thermal power plant main workshop structure or an old thermal power plant main workshop structure.
Description
[technical field]
The utility model 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 life and the property loss that cause of Wenchuan earthquake, cajaput 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 Power Plant Main House structure and destructive loss takes place in geological process have important economic value and social effect.
The Power Plant Main House at present general conventional method that adopts is carried out seismic design, i.e. the seismic energy under the big shake effect that dissipates of elastic plastic behavior by member.And the fuel of large-size thermal power plant mainly is 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, the main building structure is according to the requirement of process system, the position that coal bunker is arranged is all very high, generally about 30-40 rice.Because the quality of coal is huge, the active position height, therefore the horizontal earthquake action that whole main building structure is produced also can be very big, particularly at high intensity Zone, this is one of principal element that influences the main building structural seismic performance, cause the Power Plant Main House member section that designs according to a conventional method excessive, and anti-seismic performance is undesirable.
[utility model content]
The purpose of this utility model is to improve the anti-seismic performance of traditional Power Plant Main House structure, propose a kind of for the supporting type coal bunker shock-damping structure that improves the Power Plant Main House anti-seismic performance, 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 utility model has been taked following technical scheme:
A kind of for the supporting type coal bunker shock-damping structure that improves the Power Plant Main House anti-seismic performance, comprise steel coal hopper, frame column and coal bunker framework; The coal bunker frame fixation is on frame column, and steel coal hopper is supported on the coal bunker framework; Steel coal hopper comprises columnar coal bunker top and conical coal bunker bottom; The lower, outer perimeter on coal bunker top is provided with skirtboard; The coal bunker framework is provided with some horizontal shock isolating pedestals, and steel coal hopper is provided with some steel supports; Some steel supports of steel coal hopper are pressed on the corresponding horizontal shock isolating pedestal; Frame column connects steel coal hopper by some horizontally disposed dampers.
The utility model 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 are held concurrently coal bunker crossbeam crosswise fixed between two frame columns of correspondence, 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 fixedly the coal bunker cant beam between the coal bunker crossbeam; Described steel support and horizontal shock isolating pedestal are eight, respectively are provided with a horizontal shock isolating pedestal on eight limits of octagon coal bunker framework; Eight steel support correspondences are pressed on eight horizontal shock isolating pedestals.
The utility model further improves and is: four vertical every sides of frame column are fixedly connected by two cruciform bracings.
The utility model 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 utility model further improves and is: described damper is eight, and two dampers share a damper connector, and the skirtboard welding of damper connector and steel coal hopper is fixing; Be provided with the damper connector that a pair of damper and a pair of damper share between the pair of frames post.
The utility model further improves and is: described horizontal shock isolating pedestal is rubber pad, laminated rubber bearing or frictional disk.
The utility model further improves and is: described damper is viscous fluid damper, viscoelastic damper, lead damper, frcition damper, mild steel damper or marmem damper.
The utility model is a kind of for the supporting type coal bunker shock-damping structure that improves the Power Plant Main House anti-seismic performance, horizontal shock isolating pedestal connects coal bunker and coal bunker beam, horizontal shock isolating pedestal provides the big vertical rigidity gravity with the supporting coal bunker, provides little horizontal rigidity to realize the shock insulation function of supporting type coal bunker simultaneously; By the horizontal rigidity of the horizontal shock isolating pedestal of appropriate design, make that the vibration period of the system that horizontal shock isolating pedestal and coal bunker form is close in the cycle of main building structure under big 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 bigger damping force when coal bunker and frame column relative motion, with the motion amplitude of restriction supporting type coal bunker, improves the additional damping of structure simultaneously.
With respect to prior art, the utlity model has following beneficial effect:
After horizontal shock isolating pedestal connection coal bunker and Vierendeel girder, can obviously alleviate the absolute acceleration response of coal bunker on the one hand, 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 damper connection coal bunker and frame column, can alleviate the motion amplitude of supporting type coal bunker on the one hand, 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 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 millions of yuans construction costs is saved in the construction that can be the large thermal power plant main building.
[description of drawings]
Fig. 1 is a kind of overall schematic for the supporting type coal bunker shock-damping structure that improves the Power Plant Main House anti-seismic performance that the utility model proposes;
Fig. 2 is the vertical 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 utility model is further elaborated.
As shown in Figure 1 to Figure 3, the utility model is a kind of for the supporting type coal bunker shock-damping structure that improves the Power Plant Main House anti-seismic performance, comprises 8 horizontal shock isolating pedestals 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, and are fixedly connected by two cruciform bracings coal bunker crossbeam 60 of holding concurrently, and vertical every side is fixedly connected by two cruciform bracings 51.
Two cruciform bracings are held concurrently, and secured in parallel have two coal bunker longerons 61 in the coal bunker crossbeam 60, the coal bunker crossbeam 60 vertical settings of holding concurrently of coal bunker longeron 61 and cruciform bracing, and adjacent coal bunker longeron 61 and cruciform bracing are held concurrently fixedly coal bunker cant beam 62 between the coal bunker crossbeam 60.Two cruciform bracings are held concurrently and are centered on octagon coal bunker framework of formation between coal bunker crossbeam 60, two coal bunker longerons 61 and four coal bunker cant beams 62.The skirtboard bottom of steel coal hopper 3 is provided with 8 steel supports, respectively is provided with a horizontal shock isolating pedestal 1 on eight limits of octagon coal bunker framework; Steel coal hopper 3 is supported on the octagon coal bunker framework, and 8 steel support correspondences are pressed on 8 horizontal shock isolating pedestals 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 fixing with the skirtboard welding 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 the pair of frames post 5.
Horizontal shock isolating pedestal 1 can adopt rubber pad, laminated rubber bearing, frictional disk etc.; Horizontal shock isolating pedestal 1 has bigger vertical rigidity, to bear the vertical load of steel coal hopper 3; Horizontal shock isolating pedestal 1 horizontal rigidity is low, can obviously alleviate the absolute acceleration response of coal bunker, adopts vibration period and the structural cycle of the coal bunker system that horizontal shock isolating pedestal 1 connects close, to play the frequency modulation cushioning effect; Alleviate integrally-built seismic response by fm role.Damper 2 can adopt viscous fluid damper, viscoelastic damper, lead damper, frcition damper, mild steel damper, marmem damper etc., damper 2 provides bigger 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 shock isolating pedestal 1 is used with damper 2, can improve the anti-seismic performance of structure.
Claims (7)
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; The coal bunker frame fixation is on frame column (5), and steel coal hopper (3) is supported on the coal bunker framework; Steel coal hopper (3) comprises columnar coal bunker top (31) and conical coal bunker bottom (32); The lower, outer perimeter on coal bunker top (31) is provided with skirtboard; The coal bunker framework is provided with some horizontal shock isolating pedestals (1), and steel coal hopper (3) is provided with some steel supports; Some steel supports of steel coal hopper (3) are pressed on the corresponding horizontal shock isolating pedestal (1); Frame column (5) connects steel coal hopper (3) by some horizontally disposed dampers.
2. according to claim 1 for the supporting type coal bunker shock-damping structure that improves the Power Plant Main House anti-seismic performance, 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 are held concurrently coal bunker crossbeam (60) crosswise fixed between two frame columns (5) of correspondence, two coal bunker longerons (61) parallel longitudinal is fixed in two cruciform bracings holds concurrently between the coal bunker crossbeam (60), and adjacent coal bunker longeron (61) and cruciform bracing are held concurrently fixedly coal bunker cant beam (62) between the coal bunker crossbeam (60); Described steel support and horizontal shock isolating pedestal (1) are eight, respectively are provided with a horizontal shock isolating pedestal (1) on eight limits of octagon coal bunker framework; Eight steel support correspondences are pressed on eight horizontal shock isolating pedestals (1).
3. according to claim 2 for the supporting type coal bunker shock-damping structure that improves the Power Plant Main House anti-seismic performance, it is characterized in that: the vertical every side of four frame columns (5) is fixedly connected by two cruciform bracings (51).
4. according to claim 2 for the supporting type coal bunker shock-damping structure that improves the Power Plant Main House anti-seismic performance, 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.
5. according to claim 4 for the supporting type coal bunker shock-damping structure that improves the Power Plant Main House anti-seismic performance, it is characterized in that: described damper (2) is eight, two dampers (2) share a damper connector (4), and damper connector (4) is fixing with steel coal hopper (3) welding; Be provided with the damper connector (4) that a pair of damper (2) and a pair of damper (2) share between the pair of frames post (5).
6. according to claim 1 for the supporting type coal bunker shock-damping structure that improves the Power Plant Main House anti-seismic performance, it is characterized in that: described horizontal shock isolating pedestal (1) is rubber pad, laminated rubber bearing or frictional disk.
7. according to claim 1 for the supporting type coal bunker shock-damping structure that improves the Power Plant Main House anti-seismic performance, it is characterized in that: described damper (2) is viscous fluid damper, viscoelastic damper, lead damper, frcition damper, mild steel damper or marmem damper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320040581 CN203160759U (en) | 2013-01-24 | 2013-01-24 | Bearing type coal bucket vibration damping structure for improving seismic performance of thermal power plant main workshop |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320040581 CN203160759U (en) | 2013-01-24 | 2013-01-24 | Bearing type coal bucket vibration damping structure for improving seismic performance of thermal power plant main workshop |
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| CN203160759U true CN203160759U (en) | 2013-08-28 |
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| CN 201320040581 Expired - Lifetime CN203160759U (en) | 2013-01-24 | 2013-01-24 | Bearing type coal bucket vibration damping structure for improving seismic performance of thermal power plant main workshop |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103088906A (en) * | 2013-01-24 | 2013-05-08 | 中国电力工程顾问集团西北电力设计院 | Bearing type coal bucket shock adsorption structure for improving anti-seismic property of heat-engine plant main power house |
| CN113152951A (en) * | 2021-04-22 | 2021-07-23 | 薛寒 | Method for reducing earthquake loss of steel structure factory building and steel structure factory building |
-
2013
- 2013-01-24 CN CN 201320040581 patent/CN203160759U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103088906A (en) * | 2013-01-24 | 2013-05-08 | 中国电力工程顾问集团西北电力设计院 | Bearing type coal bucket shock adsorption structure for improving anti-seismic property of heat-engine plant main power house |
| CN113152951A (en) * | 2021-04-22 | 2021-07-23 | 薛寒 | Method for reducing earthquake loss of steel structure factory building and steel structure factory building |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
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 |
|
| CP03 | Change of name, title or address |
Address after: 22 No. 710075, unity South Road, hi tech Industrial Development Zone, Shaanxi, Xi'an 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 INST. OF CHINA POWER ENGINEERING CONSULTING Group |
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| CX01 | Expiry of patent term |
Granted publication date: 20130828 |
|
| CX01 | Expiry of patent term |