CN110645317B - Multi-dimensional seismic isolation and reduction device for storage tank - Google Patents

Multi-dimensional seismic isolation and reduction device for storage tank Download PDF

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CN110645317B
CN110645317B CN201910955753.0A CN201910955753A CN110645317B CN 110645317 B CN110645317 B CN 110645317B CN 201910955753 A CN201910955753 A CN 201910955753A CN 110645317 B CN110645317 B CN 110645317B
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damping system
horizontal
damping
plate
dimensional
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CN110645317A (en
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沈朝勇
马玉宏
谭平
陈洋洋
黄襄云
吴迪
崔杰
周福霖
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Guangzhou University
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Guangzhou University
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C3/00—Vessels not under pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0153—Details of mounting arrangements
    • F17C2205/0192—Details of mounting arrangements with external bearing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0153—Details of mounting arrangements
    • F17C2205/0196—Details of mounting arrangements with shock absorbing means

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Vibration Prevention Devices (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Abstract

The invention relates to the technical field of life line engineering, in particular to a multi-dimensional seismic isolation and reduction device for a storage tank, which comprises a horizontal first-dimensional damping system, a horizontal second-dimensional damping system, a vertical damping system, an anti-torsion damping system, a circular guide rail system and a ball screw system, wherein the horizontal first-dimensional damping system is connected with the horizontal second-dimensional damping system through a connecting rod; the first dimension damping system of level, the second dimension damping system of level provides the horizontal damping of two directions, vertical damping system and anti-torsion damping system provide vertical damping and torsional damping respectively, this device can all produce the damping in four directions, and independent each other, each other does not influence, when the earthquake takes place, no matter be the horizontal direction, still vertical direction, even the seismic force of the torsional weight that produces, can all realize the shock attenuation through this device, the shock insulation function, the damage that similar large-scale LNG storage tank received in the multidimension earthquake has been alleviateed greatly, the secondary harm of production has been reduced, furthermore, this device simple to operate, high durability and convenient use, operation in-process need not special maintenance.

Description

Multi-dimensional seismic isolation and reduction device for storage tank
Technical Field
The invention relates to the technical field of lifeline engineering, in particular to a multi-dimensional seismic isolation and reduction device for a storage tank.
Background
In a large LNG storage tank area, the LNG storage tank can be bent, damaged, collapsed or even exploded once in a large earthquake, serious secondary disasters such as fire disasters can be generated besides the loss caused by the storage tank, and a large amount of casualties can be caused besides a large amount of property loss.
In order to reduce the influence of an earthquake on the LNG storage tank, a rubber shock insulation support is generally arranged at the bottom of the large-scale LNG storage tank at present, so that the damage caused by the earthquake can be reduced, and the safety of upper equipment is protected. However, the existing rubber shock insulation support is only applied to shock insulation in two horizontal directions, the shock absorption effect in the vertical and horizontal torsion directions is very little, and from the seismic record measured by a large earthquake of the past, the vertical earthquake occupies a great amount of the whole seismic energy and also contains a part of torsion, and as a great lifeline project, how to reduce the damage of a large LNG storage tank in the multidimensional earthquake is a subject worth researching.
Disclosure of Invention
The invention provides a multi-dimensional seismic isolation and reduction device for a storage tank, aiming at the defects in the prior art, the device does not bear vertical load vertically, can freely slide in two horizontal directions and vertically, can freely twist in the direction around a vertical shaft, can provide corresponding damping functions in the four directions, and does not hinder any horizontal and vertical movements of a horizontal and vertical seismic isolation support, so that the support has the multi-dimensional seismic isolation and reduction function.
The invention realizes the purpose by the following technical scheme:
a multi-dimensional seismic isolation and reduction device for a storage tank comprises a horizontal damping system, a vertical damping system, an anti-torsion damping system, a circular guide rail system and a ball screw system, wherein the horizontal damping system comprises a horizontal first-dimensional damping system and a horizontal second-dimensional damping system, the horizontal first-dimensional damping system and the horizontal second-dimensional damping system can slide in the horizontal direction, and the horizontal sliding directions of the horizontal first-dimensional damping system and the horizontal second-dimensional damping system are vertical to each other; the vertical damping system is arranged below the horizontal first-dimension damping system, an inner cavity is formed in the vertical damping system, and the vertical damping system can move vertically; the circular guide rail system is arranged between the vertical damping system and the horizontal second-dimension damping system and comprises an upper rail and a lower rail which can rotate mutually, a through hole is formed in the upper rail, and a cavity is formed in the lower rail; the ball screw system comprises a rolling shaft, a nut arranged on the upper half section of the rolling shaft and a ball arranged between the rolling shaft and the nut, the rolling shaft penetrates through the through hole, the lower end of the rolling shaft extends into the cavity of the lower track, the upper end of the rolling shaft extends into the inner cavity of the vertical damping system, and the nut is connected with the upper end face of the upper track; the anti-torsion damping system is arranged in a cavity of the lower track, the upper end of the anti-torsion damping system is connected with the roller, the roller can be prevented from rotating, the lower end of the anti-torsion damping system is connected with the bottom wall of the cavity of the lower track, and the anti-torsion damping system can vertically move inside.
Further, the nut is connected with the upper end surface of the upper rail through an additional inner connecting cylinder.
Further, the vertical damping system comprises an inner barrel and an outer barrel which can move up and down relatively, a first polytetrafluoroethylene plate is arranged on the outer side of the inner barrel, a first stainless steel mirror plate is arranged on the inner side of the outer barrel, and when the inner barrel moves vertically relative to the outer barrel, the first polytetrafluoroethylene plate and the first stainless steel mirror plate rub to generate vertical damping.
Furthermore, the inner barrel and the outer barrel are arranged by adopting convex-concave channels.
Further, a top ring plate is arranged at the upper end of the inner barrel, a bottom ring plate is arranged at the lower end of the outer barrel, the top ring plate is connected with the horizontal first-dimension damping system, and the bottom ring plate is connected with the circular guide rail system.
Further, the horizontal first-dimension damping system and the horizontal second-dimension damping system are identical in structure and respectively comprise an upper top plate, a lower bottom plate, a guide rail arranged on the lower bottom plate, a sliding block and a steel jacket shell arranged on the upper top plate, a second polytetrafluoroethylene plate is arranged at the bottom of the steel jacket shell, a second stainless steel mirror plate is arranged on the lower bottom plate, and when the horizontal first-dimension damping system or the horizontal second-dimension damping system slides in the horizontal direction, the second polytetrafluoroethylene plate and the second stainless steel mirror plate slide mutually to form damping in the horizontal direction.
Further, antitorque commentaries on classics damping system includes rubber damper and anti-twist pile, rubber damper one end with lower track bottom inner wall connection, the other end with the roller bearing is connected, be provided with on the rubber damper with anti-twist pile cross sectional shape assorted through-hole, the roller bearing lower extreme be provided with anti-twist pile cross sectional shape assorted recess, anti-twist pile one end is connected with lower track, the other end passes in rubber damper's through-hole stretches into the recess of roller bearing.
Preferably, the anti-torsion pile is a square pin.
Further, the rubber damper comprises an upper connecting plate, an outer ring plate integrally formed with the upper connecting plate, a lower connecting plate and an inner ring plate integrally formed with the lower connecting plate, wherein the outer ring plate and the inner ring plate are connected through an annular rubber block, and the outer ring plate can move up and down relative to the inner ring plate.
Preferably, the rubber damper is circular or regular polygon, and the annular rubber block is made of high damping rubber material.
Compared with the prior art, the invention has the beneficial effects that:
the multidimensional vibration reduction and isolation device for the storage tank is provided with a horizontal first-dimensional damping system and a horizontal second-dimensional damping system which move in the horizontal direction and are vertical to each other, can provide damping in two horizontal directions at the same time except that the horizontal vibration isolation support is not hindered from moving in any horizontal direction, adopts a vertical damping system, can not only transmit the torsional movement of the whole device to a roller screw system through a circular track system, but also provide vertical damping for the whole device, and can convert the torsional movement into vertical movement by restricting the rotation of a roller through the anti-torsional damping system, so that the anti-torsional damping system generates vertical shear deformation to form integral torsional damping, the whole device can generate damping in four directions, is independent from each other and does not influence each other, and when the earthquake occurs, the earthquake is in the horizontal direction, the vertical direction or even generates the vibration force of the torsional component, all can realize shock attenuation, shock insulation function through this device, alleviate the damage that similar large-scale LNG storage tank received in the multidimension earthquake greatly, reduced the secondary harm that produces, in addition, this device simple to operate, simple to use need not special maintenance in the operation process.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a cross-sectional view of fig. 1.
Fig. 3 is a schematic structural view of the ball screw system of the present invention.
FIG. 4 is a schematic view of the circular rail system of the present invention
Fig. 5 is a schematic structural view of a vertical damping system according to the present invention.
Fig. 6 is a cross-sectional view of fig. 5.
Fig. 7 is a schematic structural diagram of a horizontal first-dimension damping system or a horizontal second-dimension damping system according to the present invention.
Fig. 8 is a cross-sectional view of fig. 7.
FIG. 9 is a schematic view showing the structure of a rubber damper according to the present invention.
Fig. 10 is a cross-sectional view of fig. 9.
Detailed Description
The invention is described in detail below with reference to the figures and the specific embodiments.
Example 1.
As shown in fig. 1-4, the embodiment provides a multi-dimensional seismic isolation and reduction device for a storage tank, which includes a horizontal first-dimensional damping system 1, a horizontal second-dimensional damping system 8, a vertical damping system 2, an anti-torsion damping system, a circular guide rail system 5 and a ball screw system 4, wherein the horizontal first-dimensional damping system 1 is connected with a storage tank lower bottom plate 9 above the storage tank lower bottom plate 9, the storage tank 10 is arranged on the storage tank lower bottom plate 9, the horizontal second-dimensional damping system 8 is connected with a fixed ground, and both the horizontal first-dimensional damping system 1 and the horizontal second-dimensional damping system 8 can slide in the horizontal direction, and the horizontal sliding directions of the two are perpendicular to each other; the vertical damping system 2 is arranged below the horizontal first-dimension damping system 1, an inner cavity is arranged in the vertical damping system, and the vertical damping system 2 can move vertically; the circular guide rail system 5 is arranged between the vertical damping system 2 and the horizontal second-dimension damping system 8 and comprises an upper rail 51 and a lower rail 52 which can rotate mutually, a through hole 54 is formed in the upper rail 52, and a cavity is formed in the lower rail 52; the ball screw system 4 comprises a roller 43, a nut 41 arranged on the upper half section of the roller 43 and a ball 42 arranged between the roller 43 and the nut 41, the roller 43 penetrates through the through hole 54, the lower end of the roller extends into the cavity of the lower track 52, the upper end of the roller extends into the inner cavity of the vertical damping system 2, and the nut 41 is connected with the upper end face of the upper track 51; the anti-torsion damping system is arranged in the cavity of the lower rail 52, the upper end of the anti-torsion damping system is connected with the roller 43 and can prevent the roller 43 from rotating, the lower end of the anti-torsion damping system is connected with the inner wall of the cavity of the lower rail 52, and the interior of the anti-torsion damping system can move vertically.
When the storage tank 10 is subjected to an earthquake in any horizontal direction, the horizontal first-dimension damping system 1 and the horizontal second-dimension damping system 8 in the multi-dimension seismic isolation and reduction device for the storage tank generate corresponding horizontal movement, and generate two horizontal-direction damping simultaneously; when the storage tank is subjected to an earthquake in the vertical direction, the horizontal first-dimension damping system 1 drives the vertical damping system 2 to move, the interior of the vertical damping system 2 moves relatively, friction damping is generated, and vertical damping is formed; because torsional component exists in the earthquake or because the rigid center of the shock insulation structure is not completely coincided with the mass center, relative torsion can occur between the storage tank structure and the fixed ground, at the moment, the horizontal first-dimensional damping system 1 drives the circular track system 5 to rotate through the vertical damping system 2, the circular track system 5 drives the nut 41 of the ball screw system 4 to rotate, the torsion direction of the roller 43 of the ball screw system 4 is restrained by the anti-torsion damping system and then is converted into vertical motion, the anti-torsion damping system is driven to vertically move, the torsion damping system generates vertical shear deformation in the vertical motion, energy-consuming damping is formed, and torsional damping is provided for the whole device.
The multidimensional vibration and shock absorption device for the storage tank can generate damping in four directions, is independent from each other and does not influence each other, when an earthquake occurs, the device can realize the functions of vibration and shock absorption no matter in the horizontal direction or the vertical direction, or even the generated vibration force of a torsional component, greatly lightens the damage of a similar large LNG storage tank in the multidimensional earthquake, and reduces the generated secondary hazard.
Wherein, the nut 41 is connected with the upper end surface of the upper rail 51 through the additional inner connecting cylinder 3, thereby enhancing the structural stability and increasing the vertical movement formation of the roller 43.
As shown in fig. 5-6, the vertical damping system 2 includes an inner barrel 22 and an outer barrel 25 capable of moving up and down relatively, a first teflon plate 23 is disposed on the outer side of the inner barrel 22, a first stainless steel mirror plate 24 is disposed on the inner side of the outer barrel 25, when a vertical earthquake occurs, the inner barrel 22 moves up and down relatively to the outer barrel 25, and at this time, the first teflon plate 23 and the first stainless steel mirror plate 24 rub against each other to generate friction damping, thereby forming vertical damping.
The inner barrel 22 and the outer barrel 25 are arranged by adopting convex-concave channels, when a torsional component exists in a local earthquake or the center of gravity of a shock insulation structure is not completely superposed with the center of mass, the storage tank structure and the fixed ground are likely to be twisted relatively, the horizontal first-dimension damping system 1 drives the inner barrel 22 to rotate at the moment, and the vertical damping system 2 drives the whole outer barrel 25 to rotate by adopting the convex-concave channels, so that the following structure is driven to rotate.
The upper end of the inner barrel 22 is provided with a top ring plate 21, the lower end of the outer barrel 25 is provided with a bottom ring plate 26, the top ring plate 21 is connected with the horizontal first-dimension damping system 1, and the bottom ring plate 26 is connected with the circular guide rail system 5, so that the vertical damping system 2, the horizontal first-dimension damping system 1 and the circular guide rail system 5 can be conveniently mounted and dismounted.
As shown in fig. 7-8, the horizontal first-dimensional damping system 1 and the horizontal second-dimensional damping system 8 have the same structure, and each of them comprises an upper top plate 11(81), a lower bottom plate 13(83), a guide rail 12(82) arranged on the upper top plate 11(81), a slide block 17(87) arranged on the lower bottom plate 13(83), and a steel jacket 16(86), the end of the steel jacket 16(86) is provided with a second teflon plate 15(85), the upper top plate 11(81) is provided with a second stainless mirror plate 14(84), when the horizontal first-dimensional damping system 1 or the horizontal second-dimensional damping system 8 slides in the horizontal direction, the second teflon plate 15(85) and the second stainless mirror plate 14(84) slide with each other, friction damping occurs, damping occurs in both horizontal directions, and any horizontal direction movement can occur, while also providing damping in both horizontal directions.
As shown in fig. 9-10, the anti-torsion damping system includes a rubber damper 6 and an anti-torsion pile, the anti-torsion pile in this embodiment is a square pin 7, the bottom of the lower rail 52 is provided with a first connecting plate 53, one end of the rubber damper 6 is connected with the first connecting plate 53, the other end is connected with the roller 43, for the convenience of connection, the bottom of the roller 43 is provided with a connecting bottom plate 44, the connecting bottom plate 44 is connected with the rubber damper 6, the rubber damper 6 is provided with a through hole matching with the cross-sectional shape of the square pin 7, the lower end of the roller 43 is provided with a groove matching with the cross-sectional shape of the square pin 7, one end of the square pin 7 is connected with the first connecting plate 53, the other end passes through the through hole of the rubber damper 6 and extends into the groove of the roller 43, when there is a torsion component in a local earthquake or when the center of a structure is not completely overlapped with the center of mass, the horizontal first-dimension damping system 1 drives the circular track system 5 to rotate through the vertical damping system 2, the circular track system 5 drives the nut 41 of the ball screw system 4 to rotate through the additional inner connecting cylinder 3 at the moment, the nut 41 of the ball screw system 4 rotates relative to the roller 43 through the ball 42, the torsion direction of the roller 43 is restrained by the square pin 7, the roller 43 drives the rubber damper 6 to move vertically, the rubber damper 6 generates vertical shear deformation, energy dissipation damping is formed, and torsion damping is provided for the whole device.
The rubber damper 6 comprises an upper connecting plate 61, an outer ring plate 62 integrally formed with the upper connecting plate 61, a lower connecting plate 65 and an inner ring plate 64 integrally formed with the lower connecting plate 65, the outer ring plate 62 and the inner ring plate 64 are connected through an annular rubber block 63, the outer ring plate 62 can move up and down relative to the inner ring plate 64, and when the rubber damper 6 moves vertically, namely the outer ring plate 62 moves downward relative to the inner ring plate 64, the annular rubber block 63 between the outer ring plate 62 and the inner ring plate 64 generates vertical shearing deformation, so that energy dissipation damping is formed.
The rubber damper 6 can be designed into a circular shape or a regular polygon shape as required, and the annular rubber block 63 is made of a high-damping rubber material, so that high energy consumption damping can be improved.
The multidimensional vibration reduction and isolation device for the storage tank is implemented by inserting a square pin 7 into a through hole of a rubber damper 6 in advance, connecting a connecting bottom plate 44 at the bottom of a roller 43 with an upper connecting plate 61 of the rubber damper 6 by using a bolt, connecting an additional inner connecting cylinder 3 with a lower outer ring plate of a nut 41 of a roller screw system 4 by using a bolt, connecting the other end of the additional inner connecting cylinder 3 with the surface of an upper rail 51 of a circular rail system 5, connecting the lower part of an integral structure formed by the five parts (the rubber damper 6, the square pin 7, the ball screw system 4, the additional inner connecting cylinder 3 and the circular rail system 5) with a lower bottom plate 83 of a horizontal second-dimensional damping system 8, connecting the surface of the upper rail 51 of the circular rail system 5 with a bottom ring plate 26 of a vertical damping system 2, and finally, connecting a top ring plate 21 of the vertical damping system 2 with a lower bottom plate 13 of the horizontal first-dimension damping system 1 to form a main body of the four-dimension seismic isolation and reduction device. And finally, sequentially connecting an upper top plate 11 of the horizontal first-dimensional damping system 1 with a lower bottom plate 9 of the storage tank and the storage tank 10 in series, and connecting an upper top plate 81 of the horizontal second-dimensional damping system 8 with the fixed ground to form the multi-dimensional seismic reduction and isolation device for the storage tank.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of the invention, also technical features in the above embodiments or in different embodiments may be combined and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity. Therefore, any omissions, modifications, substitutions, improvements and the like that may be made without departing from the spirit and principles of the invention are intended to be included within the scope of the invention.

Claims (9)

1. The utility model provides a multi-dimensional seismic isolation device that subtracts for storage tank which characterized in that includes:
the horizontal damping system can provide horizontal damping and comprises a horizontal first-dimension damping system and a horizontal second-dimension damping system, wherein the horizontal first-dimension damping system and the horizontal second-dimension damping system can slide in the horizontal direction, and the horizontal sliding directions of the horizontal first-dimension damping system and the horizontal second-dimension damping system are vertical to each other;
the vertical damping system can provide vertical damping and is arranged below the horizontal first-dimension damping system, an inner cavity is formed in the vertical damping system, and the vertical damping system can move vertically;
the circular guide rail system is arranged between the vertical damping system and the horizontal second-dimensional damping system and comprises an upper rail and a lower rail which can rotate relatively, a through hole is formed in the upper rail, and a cavity is formed in the lower rail;
the ball screw system comprises a rolling shaft, a nut arranged on the upper half section of the rolling shaft and a ball arranged between the rolling shaft and the nut, the rolling shaft penetrates through the through hole, the lower end of the rolling shaft extends into the cavity of the lower track, the upper end of the rolling shaft extends into the inner cavity of the vertical damping system, and the nut is connected with the upper end face of the upper track;
the anti-torsion damping system is used for providing torsion damping, is arranged in a cavity of the lower track, is connected with the rolling shaft at the upper end and can prevent the rolling shaft from rotating, is connected with the bottom wall of the cavity of the lower track at the lower end, and can vertically move inside the anti-torsion damping system;
the anti-torsion damping system comprises a rubber damper and an anti-torsion pile, one end of the rubber damper is connected with the inner wall of the bottom of the lower rail, the other end of the rubber damper is connected with the roller, a through hole matched with the cross section shape of the anti-torsion pile is formed in the rubber damper, a groove matched with the cross section shape of the anti-torsion pile is formed in the lower end of the roller, one end of the anti-torsion pile is connected with the lower rail, and the through hole, through which the other end of the anti-torsion damping system penetrates, extends into the groove of the roller.
2. The multi-dimensional seismic isolation and reduction device for a storage tank of claim 1, wherein the nut is connected to the upper end surface of the upper rail by an additional inner connection cylinder.
3. The multidimensional vibration and shock absorption and isolation device for the storage tank as claimed in claim 1 or 2, wherein the vertical damping system comprises an inner barrel and an outer barrel which can move up and down relatively, a first polytetrafluoroethylene plate is arranged on the outer side of the inner barrel, a first stainless steel mirror plate is arranged on the inner side of the outer barrel, and when the inner barrel moves vertically relative to the outer barrel, the first polytetrafluoroethylene plate and the first stainless steel mirror plate rub to generate vertical damping.
4. The multi-dimensional seismic isolation and reduction device for the storage tank of claim 3, wherein the inner barrel and the outer barrel are arranged by adopting convex-concave channels.
5. The multi-dimensional seismic isolation and reduction device for the storage tank of claim 4, wherein the upper end of the inner barrel is provided with a top ring plate, the lower end of the outer barrel is provided with a bottom ring plate, the top ring plate is connected with the horizontal first-dimension damping system, and the bottom ring plate is connected with the circular guide rail system.
6. The multi-dimensional seismic isolation and reduction device for the storage tank as claimed in any one of claims 1, 2 or 5, wherein the horizontal first-dimensional damping system and the horizontal second-dimensional damping system have the same structure and each comprise an upper top plate, a lower bottom plate, a guide rail arranged on the lower bottom plate, a slider arranged on the upper top plate and a steel jacket shell, the bottom of the steel jacket shell is provided with a second polytetrafluoroethylene plate, the lower bottom plate is provided with a second stainless steel mirror plate, and when the horizontal first-dimensional damping system or the horizontal second-dimensional damping system slides in the horizontal direction, friction is generated between the second polytetrafluoroethylene plate and the second stainless steel mirror plate to form damping in the horizontal direction.
7. The multi-dimensional seismic isolation and reduction device for the storage tank of claim 1, wherein the anti-torsion piles are square pins.
8. The multi-dimensional seismic isolation and reduction device for the storage tank of claim 1, wherein the rubber damper comprises an upper connecting plate, an outer ring plate integrally formed with the upper connecting plate, a lower connecting plate, and an inner ring plate integrally formed with the lower connecting plate, wherein the outer ring plate and the inner ring plate are connected by an annular rubber block, and the outer ring plate can move up and down relative to the inner ring plate.
9. The multi-dimensional seismic isolation and reduction device for the storage tank of claim 8, wherein the rubber damper is circular or regular polygon, and the annular rubber block is made of high-damping rubber material.
CN201910955753.0A 2019-10-09 2019-10-09 Multi-dimensional seismic isolation and reduction device for storage tank Active CN110645317B (en)

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