CN110081120A - The base isolation of double containment nuclear power station and three-dimensional shock-damping structure - Google Patents
The base isolation of double containment nuclear power station and three-dimensional shock-damping structure Download PDFInfo
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- CN110081120A CN110081120A CN201910397909.8A CN201910397909A CN110081120A CN 110081120 A CN110081120 A CN 110081120A CN 201910397909 A CN201910397909 A CN 201910397909A CN 110081120 A CN110081120 A CN 110081120A
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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
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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
- F16F15/023—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 fluid means
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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
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C13/00—Pressure vessels; Containment vessels; Containment in general
- G21C13/02—Details
- G21C13/024—Supporting constructions for pressure vessels or containment vessels
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Plasma & Fusion (AREA)
- High Energy & Nuclear Physics (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a kind of base isolations for double containment nuclear power station and three-dimensional shock-damping structure, it include: inner containment, outer containment, core support structure, core structure, horizontal seismic isolation support, vertical earthquake isolating support, vertical damping device, first hydraulic cylinder, second hydraulic cylinder and sliding block, sliding block is installed on the outer wall of outer containment, second hydraulic cylinder is installed in outer containment, first hydraulic cylinder is connected with second hydraulic cylinder, and vertically opposite outer containment slides second piston bar driving sliding block when First piston bar is along horizontal movement.Base isolation according to the present invention for double containment nuclear power station and three-dimensional shock-damping structure, by the comprehensive function that horizontal seismic isolation support, first hydraulic cylinder, second hydraulic cylinder and sliding block and vertical earthquake isolating support and vertical damping device is arranged, generate three-dimensional damping effect, it may be implemented to meet the special quake-resistant safety requirement of nuclear power station, improved the seismic seeurity of nuclear power station structure significantly.
Description
Technical field
The invention belongs to double containment nuclear power station cushion technique fields, are used for double layer security in particular to one kind
The base isolation of shell nuclear power station and three-dimensional shock-damping structure.The invention belongs to passively control shock mitigation system, meet dynamics and machinery
Principle improves the seismic seeurity of dependency structure and its equipment.
Background technique
In recent years, construction of nuclear power station level in China's is continuously improved, and gradually develops to world forefront.Due to nuclear power station safety
Full importance and the high cost of accident occurs, it is desirable that we integrate each side's surface technology and improve nuclear power station infrastructure
Safety, each factor are crucial indispensable, especially seismic seeurity.
The more advanced a collection of nuclear power station project in China has been all made of the design concept of double containment at present, is pacified using bilayer
Full shell, radioactive substance cannot leak in the case that internal layer ensures reactor generation accident, and outer layer resists the damage of external impact
Evil can resist the shock of similar commercial big aircraft, but due to the randomness of earthquake, be still to reduce core using advanced technology
The seismic response in power station.
Nuclear power is located at Same Site in structure, and structure size and seismic facies ratio belong to small size component, it can be assumed that
Nuclear power station does not have to consider earthquake Spatial Difference, earthquake motion is decomposed into horizontal and vertical earthquake motion, earthquake in the horizontal and vertical direction
In dynamic, earthquake is easy to cause reactor more serious injury as a result,.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, the present invention proposes a kind of resist
Pinking is good, damping effect stablize, and can effectively convert horizontal vibrating to vertically shake be used for double containment nuclear power station
Base isolation and three-dimensional shock-damping structure.
Base isolation according to the present invention for double containment nuclear power station and three-dimensional shock-damping structure, it is horizontal by setting
Shock isolating pedestal, first hydraulic cylinder, second hydraulic cylinder and sliding block, make inner containment with respect to ground be displaced in the horizontal direction in weaken,
Reduce geological process power, and by two-way hydraulic cylinder and sliding block, by inner containment move horizontally be converted into it is vertically movable,
Vertical friction damping force can be formed by the vertical shift, provided the vertical damping of inside and outside shell structure, reduced interior safety
The vertical vibration of shell and its internal structure, slows down the horizontal displacement of inner containment, is used in the basis of double containment nuclear power station
Shock insulation and three-dimensional shock-damping structure generate the damping effect of three-dimensional from horizontal both direction and a vertical direction, may be implemented
Meet the special quake-resistant safety requirement of nuclear power station, improves the seismic seeurity of nuclear power station structure significantly.
Base isolation according to the present invention for double containment nuclear power station and three-dimensional shock-damping structure, comprising: interior safety
Shell, outer containment, core support structure, core structure, horizontal seismic isolation support, vertical earthquake isolating support, vertical damping device, first
Hydraulic cylinder, second hydraulic cylinder and sliding block, the outer containment are fixedly connected with the ground, and the inner containment and ground pass through institute
State the connection of horizontal seismic isolation support, the bottom plate of the supporting member of the core structure and the inner containment by it is described vertically every
Support connection is shaken, the supporting member of the core structure is connect with the side wall of the inner containment by the vertical damping device,
The sliding block and the outer containment vertically slide damping cooperation, and the sliding block is installed on the outer wall of the outer containment,
The second hydraulic cylinder is installed in the outer containment, and the first hydraulic cylinder is connected with the second hydraulic cylinder, and described
The first piston of one hydraulic cylinder is connected with the first end of the First piston bar of the first hydraulic cylinder, the First piston bar
Second end is connected with the inner containment, the first end of the second piston bar of the second hydraulic cylinder and the second hydraulic cylinder
Second piston be connected, the second end of the second piston bar is connected with the sliding block, and in First piston bar edge level
The second piston bar drives the sliding block vertically relatively described outer containment sliding when movement.
Base isolation according to the present invention for double containment nuclear power station and three-dimensional shock-damping structure, it is horizontal by setting
Shock isolating pedestal, first hydraulic cylinder, second hydraulic cylinder and sliding block and vertical earthquake isolating support and vertical damping device, are used in bilayer
The three-dimensional shock-damping structure of containment nuclear power station base isolation and first hydraulic cylinder, second hydraulic cylinder and the vertical damping vibration combination of sliding block
It is generated for the base isolation of double containment nuclear power station and three-dimensional shock-damping structure from horizontal both direction and a vertical direction
Three-dimensional damping effect, may be implemented to meet the special quake-resistant safety requirement of nuclear power station, has improved nuclear power station structure significantly
Seismic seeurity.
Base isolation according to an embodiment of the invention for double containment nuclear power station and three-dimensional shock-damping structure, institute
Horizontal seismic isolation support is stated using laminated rubber bases, and the horizontal rigidity of the horizontal seismic isolation support is much smaller than vertical rigidity, institute
Vertical earthquake isolating support is stated to be installed between the bottom plate of the inner containment and the supporting member of the core structure, it is described vertical
The horizontal rigidity of shock isolating pedestal is greater than vertical rigidity, the vertical damping device be installed on the supporting member of the core structure with
Between the side wall of the inner containment.
Base isolation according to an embodiment of the invention for double containment nuclear power station and three-dimensional shock-damping structure, institute
First piston bar is stated to be connected with the top of the outer wall of the inner containment.
Base isolation according to an embodiment of the invention for double containment nuclear power station and three-dimensional shock-damping structure, institute
It states First piston bar to extend transversely, and the inner end of the First piston bar is connected with the outer wall of the inner containment, described
The outer end of one piston rod is connected with the first piston and the spaced apart from inner walls with the outer containment, the second piston bar
It is vertically extending.
Base isolation according to an embodiment of the invention for double containment nuclear power station and three-dimensional shock-damping structure, institute
It states first piston and the cavity of the first hydraulic cylinder is separated out the first rod chamber and the first rodless cavity, the second piston will
The cavity of the second hydraulic cylinder is separated out the second rod chamber and the second rodless cavity, first rodless cavity and second nothing
Rod cavity is connected, and first rod chamber is connected with second rod chamber, between first rodless cavity and second rodless cavity
It is connected with the first reversal valve, is connected with the second reversal valve between first rod chamber and second rod chamber.
Base isolation according to an embodiment of the invention for double containment nuclear power station and three-dimensional shock-damping structure, institute
Sliding block is stated equipped with displacement sensor and temperature sensor.
Base isolation according to an embodiment of the invention for double containment nuclear power station and three-dimensional shock-damping structure, institute
The inner wall of outer containment is stated equipped with sliding slot vertically, the sliding block is installed on the sliding slot.
Base isolation according to an embodiment of the invention for double containment nuclear power station and three-dimensional shock-damping structure, institute
It is multiple for stating first hydraulic cylinder, the second hydraulic cylinder and the sliding block, wherein each first hydraulic cylinder have with
Its corresponding second hydraulic cylinder and the sliding block, multiple First piston bars are along the circumferentially-spaced of the inner containment
Open arrangement.
Base isolation according to an embodiment of the invention for double containment nuclear power station and three-dimensional shock-damping structure, institute
Stating inner containment includes shell ontology, and the First piston bar is connected with the upper end of the shell ontology.
Base isolation according to an embodiment of the invention for double containment nuclear power station and three-dimensional shock-damping structure, institute
Stating inner containment includes shell ontology and tuned mass damper, and the tuned mass damper is installed on the top of the shell ontology
End, the First piston bar are connected with the tuned mass damper.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the base isolation according to an embodiment of the invention for double containment nuclear power station and three-dimensional damping
The structural schematic diagram of structure；
Fig. 2 is partial enlarged view of the Fig. 1 at G；
Fig. 3 is that the base isolation for double containment nuclear power station according to another embodiment of the invention subtracts with three-dimensional
Shake the structural schematic diagram of structure.
Appended drawing reference:
Base isolation and three-dimensional shock-damping structure 100 for double containment nuclear power station；Core support structure 200；Reactor core
Structure 300；Ground 400；
Inner containment 11；Shell ontology 111；Tuned mass damper 112；Outer containment 12；Sliding slot 121；Inner containment bottom
Plate 13；
Horizontal seismic isolation support 21；Vertical earthquake isolating support 22；Vertical damping device 23；Sliding block 24；Second displacement sensor 32；
Second temperature sensor 34.
First hydraulic cylinder 71；First piston 711；First piston bar 712；Second hydraulic cylinder 72；Second piston 721；Second
Piston rod 722；First reversal valve 73；Second reversal valve 74；Third reversal valve 75；Displacement sensor 31；Temperature sensor 33.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to
The embodiment of attached drawing description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " longitudinal direction ", " transverse direction ", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "vertical", "horizontal", "top", "bottom" "inner", "outside", " axial direction ", " radial direction " is based on attached
Orientation or positional relationship shown in figure, is merely for convenience of description of the present invention and simplification of the description, rather than indication or suggestion is signified
Device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to the present invention
Limitation.In addition, defining " first ", the feature of " second " can explicitly or implicitly include one or more be somebody's turn to do
Feature.In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；
It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the connection inside two elements.For the ordinary skill in the art, it can understand that above-mentioned term exists with concrete condition
Concrete meaning in the present invention.
The requirement for allowing eaerthquake damage occur to meet nuclear power station structure and equipment not shakes according to earthquake motion three-dimensional
The actual conditions in (horizontal both direction, a vertical direction) play double containment (outer containment 12, inner containment 11)
Nuclear power station architectural characteristic, the present invention proposes a kind of base isolation for double containment nuclear power station and three-dimensional damping knot
Structure 100.Below with reference to Fig. 1-Fig. 3 describe the base isolation according to an embodiment of the present invention for double containment nuclear power station with
Three-dimensional shock-damping structure 100.
As shown in Figure 1-Figure 3, the base isolation according to an embodiment of the invention for double containment nuclear power station with
Three-dimensional shock-damping structure 100 includes: inner containment 11, outer containment 12, horizontal seismic isolation support 21, vertical earthquake isolating support 22, erects
To damper 23, first hydraulic cylinder 71, second hydraulic cylinder 72 and damping slide block 24.
As shown in Figure 1, Figure 3, outer containment 12 is connect using fixed connection mode with ground 400, and outer containment 12 covers at interior
Containment 11, inner containment 11 have given up traditional fixed connection mode, are installed on horizontal seismic isolation support 21, horizontal seismic isolation support
21 are set as Seismic Isolation of Isolation Layer using rubber earthquake isolation support, are installed on ground 400, and horizontal seismic isolation branch using horizontal seismic isolation support 21
The horizontal rigidity of seat 21 is less than vertical rigidity, so that inner containment 11 and the rigidity connected horizontally of ground 400 are smaller, makes interior
Containment 11 can be mobile relative to 400 horizontal direction of ground in earthquake, and is formed between inner containment 11 and outer containment 12
Biggish horizontal relative displacement.Since the rigidity of structure of 12 structure of outer containment is big, thus the displacement of its horizontal earthquake is small, and interior
The rigidity of structure of 11 structure of containment is small, and horizontal earthquake displacement is big, thus inner containment 11 and outer containment 12 can produce
Biggish horizontal displacement is poor.Specifically, inner containment 11 and its internal structure using horizontal seismic isolation support 21 carry out basis every
Shake, the transmission energy of level of isolation earthquake trend nuclear power station structure and equipment.
Specifically, horizontal seismic isolation support 21 can make inner containment 11 with respect to the form that ground 400 shakes in the horizontal direction
Disperse, weaken, dredge geological process power, at this point, the seismic response of horizontal seismic isolation support 21 is concentrated mainly on base isolation layer,
Level of isolation earthquake motion may be implemented, reduced the horizontal ground motion of inner containment 11 and its internal structure.
As shown in Figure 1-Figure 3, first hydraulic cylinder 71, the second liquid are respectively arranged at inner containment 11 and outer containment 12
Cylinder pressure 72 and damping slide block 24, first hydraulic cylinder 71, second hydraulic cylinder 72 and damping slide block 24 are multiple, wherein Mei Ge
One hydraulic cylinder 71 has corresponding a second hydraulic cylinder 72 and damping slide block 24, and multiple First piston bars 712 are along inner containment
11 circumferentially spaced arrangement.
Damping slide block 24 is installed on the outer wall of outer containment 12, and second hydraulic cylinder 72 is installed in outer containment 12, and first
Hydraulic cylinder 71 is connected with second hydraulic cylinder 72, the first piston 711 of first hydraulic cylinder 71 and the first piston of first hydraulic cylinder 71
The first end of bar 712 is connected, and the second end of First piston bar 712 is connected with inner containment 11, and the second of second hydraulic cylinder 72 is living
The first end of stopper rod 722 is connected with the second piston 721 of second hydraulic cylinder 72, and the second end of second piston bar 722 and damping are slided
Block 24 is connected, and second piston bar 722 drives damping slide block 24 vertically opposite when First piston bar 712 is along horizontal movement
Outer containment 12 slides.
Inner containment 11 will drive First piston bar 712 when moving in the horizontal direction relative to ground 400 and move in the horizontal direction
It is dynamic, and then First piston bar 712 is made to push first piston 711, make the water of first hydraulic cylinder 71 transversely by inner containment 11
Flat power is converted into hydraulic coupling and is transmitted to second hydraulic cylinder 72, and is transmitted to damping slide block 24 by second piston bar 722, makes to hinder
Buddhist nun's sliding block 24 vertically slides, and by the vertically movable vertical friction damping force of formation, and then completes the water of inner containment 11
Translation turn turns to the vertically movable of damping slide block 24, i.e., converts outer containment 12 for moving horizontally for inner containment 11
Vertical damping reduces the vertical vibration of inner containment 11 and its internal structure.
Damping slide block 24 is installed on the outer wall of outer containment 12, and second hydraulic cylinder 72 is installed on the interior of outer containment 12, resistance
The outer wall that Buddhist nun's sliding block 24 is installed on outer containment 12 can make the arrangement of damping slide block 24 not interfere other in outer containment 12
The arrangement of component, and second hydraulic cylinder 72 is installed on the interior of outer containment 12 and can play the role of protecting second hydraulic cylinder 72,
Enhance the reliability of second hydraulic cylinder 72.
Damping slide block 24 is installed on sliding slot 121, hinders thus, it is possible to be realized by the cooperation of sliding slot 121 and damping slide block 24
Buddhist nun's sliding block 24 is slidably matched with respect to outer containment 12, and this kind of fit structure is simple, high reliablity, and then promotes damping and slide
The sliding reliability of block 24.Anti-skid design can be set in the contact surface of sliding slot 121 and damping slide block 24, or sliding slot 121 with
The contact surface of damping slide block 24 sets the force of sliding friction between the approach such as nonskid coating enhancing sliding slot 121 and damping slide block 24, thus
Realize that the sliding of damping slide block 24 and outer containment 12 damps cooperation.
In some embodiments, as shown in Fig. 2, the cavity of first hydraulic cylinder 71 is separated out the first rod chamber and by piston
The cavity of second hydraulic cylinder 72 is separated out the second rod chamber and the second rodless cavity, the first nothing by one rodless cavity, second piston 721
Rod cavity is connected with the second rodless cavity, and the first rod chamber is connected with the second rod chamber, connects between the first rodless cavity and the second rodless cavity
There is the first reversal valve 73, the second reversal valve 74 is connected between the first rod chamber and the second rod chamber.
Inner containment 11, which will generate horizontal jitter (horizontal displacement) because of earthquake, to be transmitted to first by First piston bar 712
Piston 711, first piston 711 does work to the hydraulic oil in the first rodless cavity of first hydraulic cylinder 71, thus by inner containment 11
The hydraulic energy for moving horizontally (i.e. mechanical energy) and being converted into hydraulic oil of first piston 711 is transmitted to through First piston bar 712；The
Hydraulic oil in first rodless cavity of one hydraulic cylinder 71 enters second hydraulic cylinder 72 by hydraulic oil pipe and the first reversal valve 73
Second rodless cavity, so that hydraulic energy in the first rodless cavity of first hydraulic cylinder 71 to be transmitted to the second nothing of second hydraulic cylinder 72
In rod cavity；Hydraulic energy does work (i.e. by hydraulic energy transfer to second piston 721 in second rodless cavity of second hydraulic cylinder 722 (8)
For mechanical energy), then second piston 721 pushes second piston bar 722 to do vertical motion；Second piston bar 722 and damping slide block
24 connections, so that second piston bar 722 will push damping slide block 24 to do vertical motion, thus by inner containment 11 due to earthquake
It generates horizontal jitter (horizontal displacement) and passes through First piston bar 712, first piston 711, second piston 721, second piston bar
722 are converted into the vertical motion of damping slide block 24；Damping slide block 24 is placed in sliding slot 121, and sliding slot 121 is fixed on outer safety
On shell 12；Damping slide block 24 is equipped with second displacement sensor 32 and second temperature sensor 34, second displacement sensor 32 and the
Two temperature sensors 34 be used for at damping slide block 24 displacement and environment temperature monitor in real time.
As shown in Figure 1, Figure 3, for the base isolation of double containment nuclear power station and three-dimensional shock-damping structure 100 further include:
Inner containment bottom plate 13, vertical earthquake isolating support 22 and vertical damping device 23.
Inner containment 11 is mounted on horizontal seismic isolation support 21 by the setting realization of inner containment bottom plate 13, vertical earthquake isolating branch
The horizontal rigidity of seat 22 is greater than vertical rigidity, so that the vertical earthquake isolating of inner containment 11 is realized, to further decrease interior safety
The vertical vibration of shell 11；Vertical damping device 23 can prevent generation level side between core support structure 200 and inner containment 11
To relative displacement and colliding with for occurring, earthquake response is limited, and then play protection and core support structure 200
Connected core structure 300 acts on.
In some embodiments, as shown in Figure 1, inner containment 11 includes shell ontology 111, First piston bar 712 and shell sheet
The upper end of body 111 is connected, and when an earthquake occurs, connecting rod is connected with the upper end of shell ontology 111, so that First piston bar 712 be made to inhale
The horizontal vibration of inner containment 11 is received, and then mitigates the horizontal vibration of inner containment 11.
In further embodiments, as shown in figure 3, inner containment 11 includes shell ontology 111 and tuned mass damper
112, tuned mass damper 112 is installed on the top of shell ontology 111, First piston bar 712 and tuned mass damper 112
It is connected, when an earthquake occurs, tuned damper can provide almost equal, contrary with the structure motion power of frequency,
Carry out structural response caused by partial offset dynamic excitation, tuned damper can be mentioned by itself with respect to inner containment 11 as a result,
For the power of opposite direction, the horizontal displacement of part inner containment 11, First piston bar 712 and tuned mass damper 112 are offset
It is connected, so that First piston bar 712 be made to absorb the horizontal vibration of tuned mass damper 112, and then mitigates inner containment 11
Horizontal vibration.
In some instances, tuned mass damper 112 can be water tank, and water tank is provided with water, when an earthquake occurs, water
It can be shaken in water tank due to the vibration of the horizontal direction of inner containment 11, but due to the inertia of water, the water in water tank can mention
Move horizontally with inner containment 11 that frequency is almost equal for one, the power opposite with 11 direction of motion of inner containment, to offset
The shaking force that part inner containment 11 is subject to.
According to the above description, the base isolation for being used in double containment nuclear power station and three-dimensional shock-damping structure are ultimately formed
100, three-dimensional damping effect is realized from the damping in horizontal both direction and vertical direction setting, may be implemented full
The sufficient special quake-resistant safety requirement of nuclear power station, improves the seismic seeurity of nuclear power station structure significantly.
Claims (10)
1. the base isolation of double containment nuclear power station and three-dimensional shock-damping structure characterized by comprising inner containment, outer peace
Full shell, core support structure, core structure, horizontal seismic isolation support, vertical earthquake isolating support, vertical damping device, first hydraulic cylinder, the
Two hydraulic cylinders and sliding block, the outer containment are fixedly connected with the ground, and the inner containment and ground pass through the horizontal seismic isolation
Support connection, the supporting member of the core structure are connect with the bottom plate of the inner containment by the vertical earthquake isolating support,
The supporting member of the core structure is connect with the side wall of the inner containment by the vertical damping device, the sliding block and institute
It states outer containment and vertically slides damping cooperation, and the sliding block is installed on the outer wall of the outer containment, described second is hydraulic
Cylinder is installed in the outer containment, and the first hydraulic cylinder is connected with the second hydraulic cylinder, and the of the first hydraulic cylinder
One piston is connected with the first end of the First piston bar of the first hydraulic cylinder, the second end of the First piston bar with it is described interior
Containment is connected, and the first end of the second piston bar of the second hydraulic cylinder is connected with the second piston of the second hydraulic cylinder,
The second end of the second piston bar is connected with the sliding block, and when the First piston bar is along horizontal movement described in it is second living
Stopper rod drives the sliding block vertically relatively described outer containment sliding.
2. the base isolation of double containment nuclear power station according to claim 1 and three-dimensional shock-damping structure, which is characterized in that
The horizontal seismic isolation support uses laminated rubber bases, and the horizontal rigidity of the horizontal seismic isolation support is less than vertical rigidity, institute
Vertical earthquake isolating support is stated to be installed between the bottom plate of the inner containment and the supporting member of the core structure, it is described vertically every
The horizontal rigidity for shaking support is greater than vertical rigidity, the vertical damping device be installed on the supporting member of the core structure with it is described
Between the side wall of inner containment.
3. the base isolation of double containment nuclear power station according to claim 1 and three-dimensional shock-damping structure, which is characterized in that
The First piston bar is connected with the top of the outer wall of the inner containment.
4. the base isolation of double containment nuclear power station according to claim 1 and three-dimensional shock-damping structure, which is characterized in that
The First piston bar extends transversely, and the inner end of the First piston bar is connected with the outer wall of the inner containment, described
The outer end of First piston bar is connected with the first piston and the spaced apart from inner walls with the outer containment, the second piston bar
It is vertically extending.
5. the base isolation of double containment nuclear power station according to claim 1 and three-dimensional shock-damping structure, which is characterized in that
The cavity of the first hydraulic cylinder is separated out the first rod chamber and the first rodless cavity by the first piston, and the second piston will
The cavity of the second hydraulic cylinder is separated out the second rod chamber and the second rodless cavity, and first rodless cavity is with described second without bar
Chamber is connected, and first rod chamber is connected with second rod chamber, connects between first rodless cavity and second rodless cavity
It is connected to the first reversal valve, is connected with the second reversal valve between first rod chamber and second rod chamber.
6. the base isolation of double containment nuclear power station according to claim 1 and three-dimensional shock-damping structure, which is characterized in that
The sliding block is equipped with displacement sensor and temperature sensor.
7. the base isolation of double containment nuclear power station according to claim 1 to 6 and three-dimensional shock-damping structure,
It is characterized in that, the inner wall of the outer containment is equipped with sliding slot vertically, the sliding block is installed on the sliding slot.
8. the base isolation of double containment nuclear power station according to claim 1 to 6 and three-dimensional shock-damping structure,
It is characterized in that, the first hydraulic cylinder, the second hydraulic cylinder and the sliding block are multiple, wherein each described first
Hydraulic cylinder has the corresponding second hydraulic cylinder and the sliding block, and multiple First piston bars are along the inner containment
Circumferentially spaced arrangement.
9. the base isolation of double containment nuclear power station according to claim 1 to 6 and three-dimensional shock-damping structure,
It is characterized in that, the inner containment includes shell ontology, the First piston bar is connected with the upper end of the shell ontology.
10. the base isolation of double containment nuclear power station according to claim 1 to 6 and three-dimensional shock-damping structure,
It is characterized in that, the inner containment includes shell ontology and tuned mass damper, the tuned mass damper is installed on institute
The top of shell ontology is stated, the First piston bar is connected with the tuned mass damper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910397909.8A CN110081120B (en) | 2019-05-14 | 2019-05-14 | Foundation shock insulation and three-dimensional shock absorption structure of double-containment nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910397909.8A CN110081120B (en) | 2019-05-14 | 2019-05-14 | Foundation shock insulation and three-dimensional shock absorption structure of double-containment nuclear power station |
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| CN107369483A (en) * | 2017-07-20 | 2017-11-21 | 上海大学 | A kind of space damping nuclear power plant structure system |
| CN108877963A (en) * | 2018-07-09 | 2018-11-23 | 哈尔滨工程大学 | Double containment large nuclear power station three-dimensional isolation structure |
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| US4092215A (en) * | 1975-09-30 | 1978-05-30 | Kraftwerk Union Aktiengesellschaft | Rupture protection device for steam generators of substantially cylindrical shape, preferably of pressurized-water nuclear power plants |
| US5438807A (en) * | 1993-11-18 | 1995-08-08 | Shustov; Valentin | Consumable shock evader |
| JP2000170826A (en) * | 1998-12-07 | 2000-06-23 | Tokyu Car Corp | Device for and system of controlling vibration and also attitude |
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| JP2011053207A (en) * | 2009-08-07 | 2011-03-17 | Mitsubishi Heavy Ind Ltd | Device for supporting apparatus for nuclear power plant |
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| CN104514833A (en) * | 2013-09-27 | 2015-04-15 | 曼卡车和巴士股份公司 | Spring-damper system used in support or damper |
| CN104358822A (en) * | 2014-09-18 | 2015-02-18 | 中国地震局工程力学研究所 | Three-way seismic isolation pedestal with two-way guide rail disc springs |
| CN107369483A (en) * | 2017-07-20 | 2017-11-21 | 上海大学 | A kind of space damping nuclear power plant structure system |
| CN108877963A (en) * | 2018-07-09 | 2018-11-23 | 哈尔滨工程大学 | Double containment large nuclear power station three-dimensional isolation structure |
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| CN110081120B (en) | 2021-04-06 |
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