CN108986934A - The single-degree-of-freedom supporting arrangement of heavy vessel - Google Patents
The single-degree-of-freedom supporting arrangement of heavy vessel Download PDFInfo
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- CN108986934A CN108986934A CN201810866979.9A CN201810866979A CN108986934A CN 108986934 A CN108986934 A CN 108986934A CN 201810866979 A CN201810866979 A CN 201810866979A CN 108986934 A CN108986934 A CN 108986934A
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- 230000008093 supporting effect Effects 0.000 title claims abstract description 84
- 238000006073 displacement reaction Methods 0.000 claims abstract description 13
- 238000007599 discharging Methods 0.000 claims abstract description 3
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 230000035882 stress Effects 0.000 description 10
- 230000008646 thermal stress Effects 0.000 description 6
- 230000002045 lasting effect Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The present invention relates to the single-degree-of-freedom supporting arrangements of heavy vessel, container includes the cylindrical body that axis is arranged along the vertical direction, cylindrical body side is provided with pressure inlet, supporting arrangement includes: at least one set of leg assembly, container is supported in vertical direction, and can be connect with container with swinging back and forth in the axis direction of pressure inlet, to discharge the thermal walking along pressure inlet axis direction；At least three groups of lateral-supporting components, are distributed in the border of container, support in the horizontal direction to container respectively, and can connect with container with swinging back and forth in the horizontal direction, displacement when discharging container cold and hot variation, and limit container along the thermal walking of pressure inlet axis direction.Leg assembly is supported in vertical direction, and container axis is allowed to translate along pressure inlet axis direction.Lateral-supporting component supports in the horizontal direction, and when release container cold and hot variation is displaced, and realizes that load transmission and thermal walking discharge, reduces torque and moment of flexure that pressure inlet is received.
Description
Technical field
The present invention relates to nuclear power fields, more specifically to a kind of single-degree-of-freedom supporting arrangement of heavy vessel.
Background technique
Compact Layout Small reactor primary Ioops pass through the short set of high rigidity by pressure vessel, with steam generator, main pump
Pipe connects and composes a closed loop.Wherein short sleeve is a part of compact Layout small-sized heap primary Ioops pressure boundary, not only
The coolant internal pressure for bearing primary Ioops, while bearing external load, especially the weakness that connects between container of commissure, therefore
It needs container support design that must limit relative displacement optimization stress, prevents short tube stress excessive and destroy, reduce cut risk,
It is significant to guarantee primary Ioops pressure boundary integrality.
Primary Ioops container starting and stopping heap can cause container that can generate thermal expansion, thermal walking, support design because of temperature change again
Thermal expansion and thermal walking should be discharged, the thermal stress that otherwise container and short sleeve are received can be more than allowable stress and destroy.It is right
Come lecture in steam generator, this kind of container of main pump and exists simultaneously the thermal potential that itself thermal expansion and overlapping system thermal expansion generate
It moves, thermal expansion and thermal walking are existed simultaneously in three-dimensional space all directions.The thermal expansion of vertical direction is discharged with main bearing fulcrum
Benchmark is discharged to both ends.Horizontal direction thermal expansion and thermal walking release rely primarily on bearing freedom degree design to discharge.
The present apparatus is complicated in marine environment lower stress, has been superimposed and has continued existing alternation inertial load and instantaneous impact
Load belongs to more field of forces and the effect of temperature field multi- scenarios method.Lasting periodical alternating load long term holds in primary Ioops
Device can cause the weakness such as pipes between devices weld seam to generate tired risk.And instantaneous shock loading numerical value is larger, needs to support
There are biggish stiffness and strength to limit the displacement of each container.This requires the bearings of primary Ioops container can effective support container institute
The various load (including periodical alternating load) received, while there is the release thermal expansion of certain lateral degrees of freedom to reduce heat again and answer
Power limits the equipment relative displacement in addition to thermal stress, optimizes pipeline stress.In ocean platform, the small-sized heap cloth of compact Layout
Set compact in reactor room central space, container fulcrum is necessarily placed near the pressure inlet in the middle part of equipment, load it is main
Transmission path is to be transmitted on whole supporting base through each vessel base, then the side of reactor room is transmitted to by whole supporting base
Wall and bottom plate.
The steam generator bearing of land heap-type mostly uses layer-stepping bearing up and down at present, and to discharge system cold and hot
Change bring thermal walking.Main structure type has lower leg to add lower part plus the contactless lateral-supporting in portion and frame-type
The forms such as lateral aiding support.
The file of Patent No. US4940025 disclose it is a kind of for nuclear power station steam generator embrace a ring add spherical joint
The expansion bearing of supporting leg type.Outrigger support is main load-bearing bearing using both-end hinge arrangement, is located at steam generator lower head branch
It holds at boss, it can be along main pipeline thermal walking run-off the straight.
Since this heap-type steam generator connects two main pipelines of hot arc and changeover portion simultaneously, outrigger support hinge uses ball
There is multiple degrees of freedom can be displaced along multidirectional conditional release in shape joint.Middle part, top add the lateral non-of stopper point using ring is embraced
Contact bearing is used to limit steam generator axis offset when LOCA or earthquake operating condition.Under the operating condition of land, it is non-contact to embrace ring
The combination support of formula lateral-supporting and supporting leg ball bearing can effectively discharge multidirectional thermal walking, and limit under accident conditions
The maximum offset of steam generator axis.
Patent of invention US4940025 belongs to a kind of supporting leg type plus the contactless layering bearing in portion, and structure is lower part one
Ring aiding support is embraced on the supporting leg of group both-end hinge, top, is embraced ring along main pipeline direction and is connected with damper.
The main bearing fulcrum of the device is located at base of evaporator lower head, and connecting rod leg length has very greatly, causes to steam
The center of gravity of vapour generator is very high, and the distance away from fulcrum is farther out, is bearing the lasting alternating load of ocean platform and huge
Equipment will generate huge moment of flexure when shock loading, and may have the risk toppled over.The both-end spherical joint that main bearing uses
Freedom degree is big, no lateral load bearing capacity, to lean on lateral contactless bearing carrying.And it is lateral it is contactless be supported on it is hot
When with steam generator be reserved with gap, when by lateral load steam generator axis offset distance have to be larger than this it is hot between
It just works after gap, it is unfavorable to the small-sized heap short sleeve stress of compact Layout, it may cause short sleeve fatigue or fracture failure.
In addition, the file of 2012/118570 A1 of Patent No. WO disclose it is a kind of for nuclear power station steam generator
The layering of frame-type supports and adjustment system.The main bearing of this system is located on steam generator top, using frame structure conduct
Main bearing is connect by two hanging plates with steam generator.Frame structure and carrying base attachment point have shaft and damper knot
Structure, in the variation of primary Ioops cold and hot state, the bearing is folded to discharge system by rotating steam generator axis, tilting
The thermal walking added.Lower part is limited in steam generator axis under the accident conditions such as LOCA and earthquake using the lateral aiding support of ring is embraced
Line offset slows down the moment of flexure to main bearing.
The frame layer-stepping bearing that 2012/118570 A1 of WO is announced, is made on steam generator top using frame structure
Based on support, lateral aiding support is arranged at lower part.There is the very strong concrete structures compartment of one layer of rigidity to make around steam generator
Based on support carrying basis.Primary Ioops cold and hot state variation when, the bearing by rotating steam generator axis,
It tilts to discharge the thermal walking of system superposition.But for the small-sized heap of compact Layout, the small-sized heap of compact Layout first is set
Standby spacing is all very small, is not provided with the space of independent high rigidity compartment.The small-sized heap of compact Layout passes through the short set of high rigidity simultaneously
Pipe connects steam generator and pressure vessel, it is necessary to discharge completely along axis.By making steam generator axis rotate, incline
Tiltedly short sleeve commissure bending moment can be made to generate great stress to discharge the mode of system thermal walking, it is serious to may cause brokenly
Mouthful.The thermal walking delivery mode of EPR steam generator bearing is similar, is not suitable for the small-sized heap steam generator of compact Layout.
Summary of the invention
The technical problem to be solved in the present invention is that providing a kind of single-degree-of-freedom supporting arrangement of improved heavy vessel.
The technical solution adopted by the present invention to solve the technical problems is: constructing a kind of single-degree-of-freedom bearing of heavy vessel
Device, the container include the cylindrical body that axis is arranged along the vertical direction, and the side of the cylindrical body is provided with pressure inlet,
The supporting arrangement includes:
At least one set of leg assembly supports the container in vertical direction, and can be in the axis direction of the pressure inlet
It is connect with the container with swinging back and forth, to discharge the thermal walking along the pressure inlet axis direction；
At least three groups of lateral-supporting components are distributed in the border of the container, respectively in the horizontal direction to the container branch
It holds, and can be connect with the container with swinging back and forth in the horizontal direction, displacement when discharging the container cold and hot variation, and limit
Thermal walking of the container along the pressure inlet axis direction.
Preferably, the leg assembly is to the height and position of the supporting-point of the container and the height and position of the pressure inlet
Quite.
Preferably, the lateral-supporting component is higher than the leg assembly to the container to the supporting-point of the container
Supporting-point.
Preferably, the leg assembly includes first base, supporting leg, and the supporting leg is vertically arranged, upper end and the tubular
The outer wall of ontology is rotatablely connected, and lower end and the first base are rotatablely connected, and the pivot center of the supporting leg upper and lower ends is equal
Perpendicular to the axis of the pressure inlet.
Preferably, the leg assembly further includes the adjustment plate for adjusting the height of the first base.
Preferably, at least one set of leg assembly includes the several groups leg assembly being distributed in the border of the container；
The central symmetry of each relatively described container of the leg assembly is distributed；And/or each leg assembly is relatively described
The axisymmetrical of pressure inlet is distributed.
Preferably, the leg assembly includes four groups, wherein leg assembly described in two groups is symmetrically distributed in the pressure inlet
Horizontal two sides, and the relatively described pressure inlet axisymmetrical setting；
The axisymmetrical setting of another two groups of leg assemblies also relatively described pressure inlet, and it is located at the container and the adapter tube
The side that mouth is supported or opposed.
Preferably, the outside of containers is equipped with the fulcrum bearing for leg assembly rotation connection；
The fulcrum bearing includes circumferentially distributed several first supports along the container；Or, the fulcrum bearing includes edge
The ring-shaped bearing ring of the border setting of the container.
Preferably, the lateral-supporting component includes four groups, the connection of lateral-supporting component and the container described in four groups
Point is evenly spaced in the circumferential direction of the container, wherein the tie point of lateral-supporting component described in two groups and the container exists
On the axis of the pressure inlet, in addition the line between lateral-supporting component and the tie point of the container described in two groups passes through institute
The center of cylindrical body is stated, and perpendicular to the axis of the pressure inlet.
Preferably, two groups of lateral-supporting components connecting with two tie points on the axis of the pressure inlet form first
Lateral-supporting unit, two groups of lateral-supporting components of the first lateral-supporting unit are perpendicular to the pressure inlet, and to level
Setting is stretched out in direction the same side；
It is connect with line by the center of the cylindrical body and perpendicular to two tie points of the axis of the pressure inlet
Two groups of lateral-supporting components form the second sides to bearing unit, two groups of lateral-supporting components from second side to bearing unit with
The pressure inlet is parallel, and stretches out and be arranged to the pressure inlet to the extending direction of the one end.
Preferably, the lateral-supporting component include the second support, connector, the both ends of the connector respectively with it is described
Container, the second support are hinged.
Preferably, the both ends of the connector pass through spherical joint respectively and the container, the second support are hinged.
Preferably, the connector of the lateral-supporting component of the first lateral-supporting unit be connecting rod, second side to
The connector of the lateral-supporting component of bearing unit is damper, and second side is higher than institute to the height and position of bearing unit
State the height and position of the first lateral-supporting unit.
Preferably, at least one end of the connecting rod is connected by the spherical joint of U-shaped hole and corresponding end.
Preferably, the supporting arrangement further includes at least two groups spacing supporting component for being distributed in the border of the container；
The spacing supporting component and the vessels apart are arranged, and limit level of the container in ultimate load
Position, the spacing supporting component and container opposite side side formed for the container against stop surface.
Preferably, the spacing supporting component includes that adjusting seat and horizontal position are adjustably mounted in the adjusting seat
The outside wall surface of stop block, the stop block and the container is oppositely arranged, and the stop surface is formed on the stop block.
Preferably, the spacing supporting component includes three groups, the setting of one group of spacing supporting component the container with it is described
The side that pressure inlet is supported or opposed, and the stop surface of this group of spacing supporting component is vertical with the axis of the pressure inlet, in addition two groups of limits
Position bearing assembly is symmetricly set on the axis two sides of the pressure inlet, and the stop surface of two groups of spacing supporting components connects with described
The axis of ozzle is parallel, and opposite with the center of the container.
Preferably, the height and position of the stop surface of the spacing supporting component is suitable with the height and position of the pressure inlet.
Preferably, the container is steam generator or main pump.
The single-degree-of-freedom supporting arrangement for implementing heavy vessel of the invention, has the advantages that leg assembly to appearance
Device is supported in vertical direction, and can be connect with container with swinging back and forth in the axis direction of pressure inlet, and container axis edge is allowed to connect
The translation of ozzle axis direction, to discharge the thermal walking along pressure inlet axis direction, release system is superimposed thermal walking.Lateral-supporting group
Part in the horizontal direction supports container, and can connect with container with swinging back and forth in the horizontal direction, to discharge the cold and hot variation of container
Shi Weiyi in conjunction with leg assembly, and limits container along the thermal walking of pressure inlet axis direction, realizes that load transmission is released with thermal walking
It puts, reduces torque and moment of flexure suffered by short sleeve, complete thermal stress release.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing:
Fig. 1 is the structural schematic diagram when supporting arrangement in the embodiment of the present invention supports container；
Fig. 2 is the structural schematic diagram of the fulcrum bearing connection on leg assembly and container in Fig. 1；
Fig. 3 is the side schematic view of the container and supporting arrangement in Fig. 1；
Fig. 4 is A-A in Fig. 3 to diagrammatic cross-section；
Fig. 5 is the B-B direction diagrammatic cross-section in Fig. 3；
Enlarged diagram when Fig. 6 is spacing supporting component and container cooperation in Fig. 5.
Specific embodiment
For a clearer understanding of the technical characteristics, objects and effects of the present invention, now control attached drawing is described in detail
A specific embodiment of the invention.
Reactor in a preferred embodiment of the invention includes that the main equipments such as pressure vessel, main pump, steam generator 1 hold
Device, pressure vessel are the centres of location, connect and compose a closed loop by bilayer sleeve with main pump, steam generator 1 respectively.
Bilayer sleeve includes pressure inlet 3 and the short sleeve that is arranged in pressure inlet 3, and the channels of two isolation are formed after being arranged, with respectively
It is flowed into and out for coolant.
As shown in Figure 1, steam generator 1 includes the cylindrical body 11 that is arranged along the vertical direction of axis, outside cylindrical body 11
Equipped with supporting arrangement, steam generator 1 is supported, the side of cylindrical body 11 is provided with pressure inlet 3, the axis water of pressure inlet 3
Flat setting, for being stretched out horizontally outward after main pipeline connection.Supporting arrangement includes leg assembly 21 and lateral-supporting component
22。
In conjunction with shown in Fig. 1 to Fig. 5, in the present embodiment, it is the main load-bearing of steam generator 1 that leg assembly 21, which includes four groups,
Bearing, is distributed in the border of steam generator 1, supports to steam generator 1 in vertical direction, and can be in the axis of pressure inlet 3
Direction is connect with swinging back and forth with steam generator 1, allows 1 axis of steam generator to translate along 3 axis direction of pressure inlet, to release
The thermal walking along 3 axis direction of pressure inlet is put, release system is superimposed thermal walking.
Lateral-supporting component 22 also includes four groups, the border of steam generator 1 is distributed in, respectively in the horizontal direction to steam
Generator 1 supports, and can connect with steam generator 1 with swinging back and forth in the horizontal direction, to discharge the cold and hot change of steam generator 1
It is displaced when change, in conjunction with leg assembly 21, and limits steam generator 1 along the thermal walking of 3 axis direction of pressure inlet.
The function of lateral-supporting component 22 is the release slowly displacement in the variation of reactor cold and hot, limits steam generator
1 along 3 axis direction of pressure inlet displacement.Axial direction, radial thermal expansion can occur when cold and hot changes and fold for steam generator 1
Add center to be displaced, space angle deflection can also occur for lateral-supporting component 22.By presetting lateral-supporting group
The angle of part 22 can be such that 1 axis of steam generator only translates at the end of system thermal expansion, remain at initial plane
It is interior and vertical with 3 axis of pressure inlet, torque suffered by pressure inlet 3 and moment of flexure can be reduced in this way, complete thermal stress release.
In other embodiments, leg assembly 21 can also only have one group or more than one set of of other quantity, release steam hair
Thermal walking of the raw device 1 along 3 axis direction of pressure inlet.Lateral-supporting component 22 can only have three groups or other numbers more than three groups
Amount when lateral displacement when discharge 1 cold and hot variation of steam generator, in conjunction with leg assembly 21, also limits 1 edge of steam generator
The thermal walking of 3 axis direction of pressure inlet.
When leg assembly 21 is multiple groups, each leg assembly 21 can be distributed with the central symmetry of relative steam generator 1, separately
Outside, each leg assembly 21 can also be distributed with respect to the axisymmetrical of pressure inlet 3, and each leg assembly 21 can also meet relative steam simultaneously
The central symmetry of generator 1 is distributed and the axisymmetrical of opposite pressure inlet 3 is distributed two kinds of situations.
When reactor is when cold and hot changes, pressure inlet 3 and main pipeline push steam generator 1 distad along own axes
Mobile, leg assembly 21 rotates with the movement of steam generator 1, due to the limitation of pressure inlet 3 and lateral-supporting component 22,
Make that the axis of steam generator 1 is still located at and horizontal plane, steam generator 1 move release thermal stress along 3 axis of pressure inlet.
At the same time, a certain amount of thermal expansion also occurs for steam generator 1 itself.
Steam generator 1 limits all freedom degrees by a whole set of supporting arrangement and pressure inlet 3, can effectively carry steam at this time
The lasting alternation inertial load that generator 1 generates reduces the load of connecting tubes mouth 3, especially moment of flexure, torque and shearing force
The load type being affected.
Leg assembly 21 is suitable with the height and position of pressure inlet 3 to the height and position of the supporting-point of steam generator 1.Anti-
When answering shut-down system that thermal walking occurs, the thermal expansion elongation of pressure inlet 3 pushes the position of steam generator 1 just also in leg assembly
Near 21 supporting-point, reduce the moment of flexure suffered during thermal walking of steam generator 1.Meanwhile the bearing of leg assembly 21
Point and 3 ozzle axial position of pressure inlet are close to can also reduce in process of expansion and contraction axial Planar Mechanisms to steam generator 1, adapter tube
3 bring additional stress of mouth.
Further, the supporting-point of leg assembly 21 is arranged near 3 ozzle of pressure inlet also close to steam generator 1 itself
Center of gravity, two parts Mass Distributions is uniform up and down for fulcrum, is generated by equipment inertia force when lateral load to leg assembly 21 curved
Square, the axis offset of generation also accordingly reduce, and are conducive to 3 stress of pressure inlet, greatly reduce cut risk.
The fulcrum bearing 12 being rotatablely connected for leg assembly 21, fulcrum bearing 12 and steam generation are equipped on the outside of steam generator 1
The junction of device 1 and 11 rounding off of cylindrical body reduce stress.
In the present embodiment, fulcrum bearing 12 includes circumferentially distributed several first supports 121 along steam generator 1, respectively
It is connected for leg assembly 21.In other embodiments, fulcrum bearing 12 may also comprise the annular along the setting of the border of steam generator 1
Support ring is connected for leg assembly 21.
In four groups of leg assemblies 21 of the present embodiment, two groups of leg assemblies 21 are symmetrically distributed in the horizontal two sides of pressure inlet 3,
And the axisymmetrical of opposite pressure inlet 3 is arranged；Another two groups of leg assemblies 21 are also arranged with respect to the axisymmetrical of pressure inlet 3, and position
In the side that steam generator 1 and pressure inlet 3 are supported or opposed.Four groups of leg assemblies 21 can close pressure inlet 3 as far as possible axis, release
Steam generator 1 is put along the thermal walking of 3 axis direction of pressure inlet.
As shown in Fig. 2, further, leg assembly 21 includes adjustment plate 211, first base 212, supporting leg 213, supporting leg
213 are vertically arranged, and the fulcrum bearing 12 on the outer wall of upper end and cylindrical body 11 is rotatablely connected, and lower end and first base 212 rotate
Connection, and the pivot center of 213 upper and lower ends of supporting leg is each perpendicular to the axis of pressure inlet 3, discharges steam generator 1 along pressure inlet
The thermal walking of 3 axis directions.
First base 212 is mounted in adjustment plate 211, is replaced the adjustment plate 211 of different-thickness, be can be used for adjusting first
The height of pedestal 212, and then supporting leg 213 is adjusted to the bearing point height of steam generator 1.Certainly, in some embodiments, adjust
Whole plate 211 can also be cancelled.Adjustment plate 211, first base 212 are mounted in base support, allow base support to leg assembly 21
It is supported positioning.
Supporting leg 213 uses short bar structure, has preferable rigidity, does not allow under lasting alternating load and percussion
Easy unstability.And 213 both-end of supporting leg is rotatablely connected using cylinder latch structure, it is made only to have single-degree-of-freedom, is discharged along pressure inlet 3
The thermal walking of axis direction, and the displacement in remaining direction is limited, reduce 3 bending moment of pressure inlet, torque.
Further, lateral-supporting component 22 is higher than leg assembly 21 to steam generation to the supporting-point of steam generator 1
The supporting-point of device 1, displacement of limitation 1 top of steam generator along 3 axis direction of pressure inlet.
Leg assembly 21, the bearing point height of lateral-supporting component 22 are different, form reasonable layering bearing, leg assembly
21 vertical direction main bearing fulcrum be arranged in 1 immediate vicinity of 3 ozzle of pressure inlet and steam generator, lateral-supporting component 22
Lateral fulcrum cover 1 top of steam generator, the complete positioning in addition to thermal walking freedom degree is provided, steam generator is optimized
1 and branch endurance.
Week of the tie point of four groups of lateral-supporting components 22 and steam generator 1 in the present embodiment in steam generator 1
To being evenly spaced on, wherein the tie point of two groups of lateral-supporting components 22 and steam generator 1 on the axis of pressure inlet 3,
Line between other two groups of lateral-supporting components 22 and the tie point of steam generator 1 passes through the center of cylindrical body 11, and
Perpendicular to the axis of pressure inlet 3.
In conjunction with shown in Fig. 4, Fig. 5, further, each lateral-supporting component 22 includes the second support 221, connector 222,
Second support 221 and base support etc. are connect, and base support is allowed to be supported positioning, connector 222 to lateral bearing assembly 22
Both ends it is hinged with steam generator 1, the second support 221 respectively.Preferably, the both ends of connector 222 pass through spherical pass respectively
Section and steam generator 1, the second support 221 are hinged.Preferably, the side wall of cylindrical body 11 is equipped with trunnion 13, connector 222
One end corresponding with steam generator 1 and trunnion 13 are articulated and connected.
Two groups of lateral-supporting components 22 connecting with two tie points on the axis of pressure inlet 3 form the first lateral-supporting
Two groups of lateral-supporting components 22 of unit 22a, the first lateral-supporting unit 22a are and same to horizontal direction perpendicular to pressure inlet 3
Setting is stretched out in side.
The connector 222 of the lateral-supporting component 22 of first lateral-supporting unit 22a is connecting rod 2221, it is preferable that two
Connecting rod 2221 is isometric, and is arranged symmetrically in steamer generator two sides along 3 axis direction of vertical nozzle mouth.Connecting rod 2221 is that rigidity connects
Bar 2221, both-end are connect with equipment and bearing structure respectively by spherical joint.Spherical joint shaft axis is vertical, can make to connect
The unconfined angle rotation in the horizontal plane of bar 2221, while a certain amount of angle offset also occurs in vertical plane.Connecting rod
By U-shaped hole, with corresponding end spherical joint is connect 2221 either ends, to adapt to due to caused by the thermal walking of steam generator
The variation of distance between two spherical joints can also connect in the both ends of connecting rod 2221 with passing through U-shaped hole and corresponding end spherical joint
It connects.
By presetting the angle of connecting rod 2221, it can make the axis of steam generator 1 at the end of system thermal expansion
It only translates, remains in initial plane and vertical with 3 axis of pressure inlet.Torque suffered by pressure inlet 3 can be reduced in this way
And moment of flexure, complete thermal stress release.In other embodiments, the both ends of connecting rod 2221 can also be rotatablely connected by shaft.
In addition, connect with line by the center of cylindrical body 11 and perpendicular to two tie points of the axis of pressure inlet 3
Two groups of lateral-supporting components 22 form the second side to bearing unit 22b, two group lateral-supporting groups of second side to bearing unit 22b
Part 22 is parallel with pressure inlet 3, and stretches out and be arranged to pressure inlet 3 to the extending direction of 1 one end of steam generator.
The connector 222 of second side to the lateral-supporting component 22 of bearing unit 22b is damper 2222, and function is cold
Slowly displacement is discharged when hot variation, the both ends of damper 2222 can be realized by shaft to be rotatablely connected.When generation cut accident
Or be hit load when, damper 2222 locking becomes non-yielding prop, limiting device top is along the position of 3 axis direction of pressure inlet
It moves.
Preferably, the second side is higher than the height position of the first lateral-supporting unit 22a to the height and position of bearing unit 22b
It sets.It second side can also be identical or low as the height and position of the first lateral-supporting unit 22a to the height and position of bearing unit 22b
In the height and position of the first lateral-supporting unit 22a.
The lateral-supporting component 22 on 1 top of steam generator is positioned close to using the damping being axially arranged along pressure inlet 3
Device 2222 and connecting rod 2221 combination axial along vertical nozzle mouth 3, can begin 1 axis of steam generator under cold and hot state stable state
It is limited in 3 axis vertical plane of pressure inlet eventually, reduces 3 bending moments of pressure inlet.The lateral branch of first lateral-supporting unit 22a
Same structure can also be used to the lateral-supporting component 22 of bearing unit 22b in bearing assembly 22 and the second side, such as by connector
222 all use connecting rod 2221, or all use damper 2222.
In conjunction with shown in Fig. 3 to Fig. 6, supporting arrangement further includes three groups of spacing supportings for being distributed in the border of steam generator 1
Component 23, spacing supporting component 23 are mounted in base support, and base support is allowed to be supported positioning to spacing supporting component 23.
Spacing supporting component 23 and the interval of steam generator 1 are arranged, and limit horizontal position of the steam generator 1 in ultimate load
Set, spacing supporting component 23 and 1 opposite side side of steam generator formed for steam generator 1 against stop surface 233, backstop
Face 233 can be plane or curved surface.Preferably, the outer wall of cylindrical body 11 is equipped with the limited block 14 opposite with stop surface 233,
When the expansion of steam generator 1 or accident conditions, lean with stop surface 233.
Spacing supporting component 23 includes that adjusting seat 231 and horizontal position are adjustably mounted on the stop block in adjusting seat 231
232, stop block 232 and the outside wall surface of steam generator 1 are oppositely arranged, and stop surface 233 is formed on stop block 232.
Preferably, stop block 232 is spirally connected with adjusting seat 231, realizes that horizontal position is adjusted.The horizontal position of stop block 232
After adjustment, the horizontal position of the adjustable gap size between cylindrical body 11, stop block 232 can not also be adjustable, only
Gap size between block 232 and cylindrical body 11 can also be preset when spacing supporting component 23 is installed.
In three groups of spacing supporting components 23, one group of setting of spacing supporting component 23 is supported or opposed in steam generator 1 and pressure inlet 3
Side, and the stop surface 233 of this group of spacing supporting component 23 is vertical with the axis of pressure inlet 3, in addition two groups of spacing supporting groups
Part 23 is symmetricly set on the axis two sides of pressure inlet 3, and the stop surface 233 of two groups of spacing supporting components 23 and pressure inlet 3
Axis is parallel, and opposite with the center of steam generator 1.
The height and position of each stop surface 233 is suitable with the height and position of pressure inlet 3, the stop surface 233 of stop block 232 with connect
3 axis of ozzle is parallel or vertical, for the bearing engagement with leg assembly 21, in the case of limiting 1 ultimate load of steam generator
Horizontal position, and provide guiding role for thermal walking.
Lower part is arranged contactless spacing supporting component 23 along three directions and carries out lateral-supporting, and limitation main equipment container exists
Displacement under the limiting conditions such as beyond design basis accident reduces 3 cut risk of pressure inlet.
In other embodiments, it can be such as set as and 11 outside wall surface pair of cylindrical body with the shape of appropriate adjustment stop surface 233
The curved surface answered can realize multidirectional positioning a position.Accordingly, spacing supporting component 23 can also only have two groups or more than two
The border of steam generator 1 is arranged in by specific position for the other quantity of group, limits steam generator 1 in ultimate load situation
Under horizontal position.
Further, it also includes cylindrical body 11 that main pump is corresponding, and 11 side of cylindrical body of main pump extends horizontally outward
Be provided with pressure inlet 3, in other embodiments, supporting arrangement can also by steam generator 1 support in the way of to main pump into
Row bearing.
It is to be appreciated that above-mentioned each technical characteristic can be used in any combination and unrestricted.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (14)
1. a kind of single-degree-of-freedom supporting arrangement of heavy vessel, the container includes the cylindrical body that axis is arranged along the vertical direction
(11), the side of the cylindrical body (11) is provided with pressure inlet (3), which is characterized in that the supporting arrangement includes:
At least one set of leg assembly (21) supports the container in vertical direction, and can be in the axis side of the pressure inlet (3)
It to swinging back and forth is connect with the container, to discharge the thermal walking along the pressure inlet (3) axis direction；
At least three groups of lateral-supporting components (22) are distributed in the border of the container, respectively in the horizontal direction to the container branch
It holds, and can be connect with the container with swinging back and forth in the horizontal direction, displacement when discharging the container cold and hot variation, and limit
Thermal walking of the container along the pressure inlet (3) axis direction.
2. the single-degree-of-freedom supporting arrangement of heavy vessel according to claim 1, which is characterized in that the leg assembly
(21) suitable with the height and position of the pressure inlet (3) to the height and position of the supporting-point of the container.
3. the single-degree-of-freedom supporting arrangement of heavy vessel according to claim 2, which is characterized in that the lateral-supporting group
Part (22) is higher than the leg assembly (21) to the supporting-point of the container to the supporting-point of the container.
4. the single-degree-of-freedom supporting arrangement of heavy vessel according to claim 1, which is characterized in that the leg assembly
It (21) include first base (212), supporting leg (213), the supporting leg (213) is vertically arranged, upper end and the cylindrical body (11)
Outer wall rotation connection, lower end and the first base (212) are rotatablely connected, and the rotation of the supporting leg (213) upper and lower ends
Axis is each perpendicular to the axis of the pressure inlet (3)；
The leg assembly (21) further includes the adjustment plate (211) for adjusting the height of the first base (212).
5. the single-degree-of-freedom supporting arrangement of heavy vessel according to any one of claims 1 to 4, which is characterized in that described
At least one set of leg assembly (21) includes the several groups leg assembly (21) being distributed in the border of the container；
The central symmetry of each relatively described container of the leg assembly (21) is distributed；And/or each leg assembly (21) is opposite
The axisymmetrical of the pressure inlet (3) is distributed.
6. the single-degree-of-freedom supporting arrangement of heavy vessel according to claim 5, which is characterized in that the leg assembly
It (21) include four groups, wherein leg assembly described in two groups (21) is symmetrically distributed in the horizontal two sides of the pressure inlet (3), and phase
Axisymmetrical setting to the pressure inlet (3)；
Another two groups of leg assemblies (21) also the relatively described pressure inlet (3) axisymmetrical setting, and be located at the container with it is described
The side that pressure inlet (3) is supported or opposed.
7. the single-degree-of-freedom supporting arrangement of heavy vessel according to claim 5, which is characterized in that the outside of containers is set
There is the fulcrum bearing (12) for the leg assembly (21) rotation connection；
The fulcrum bearing (12) includes circumferentially distributed several first supports (121) along the container；Or, the fulcrum bearing
It (12) include the ring-shaped bearing ring being arranged along the border of the container.
8. the single-degree-of-freedom supporting arrangement of heavy vessel according to any one of claims 1 to 3, which is characterized in that described
Lateral-supporting component (22) includes four groups, and the tie point of lateral-supporting component (22) described in four groups and the container is in the container
Circumferential direction be evenly spaced on, wherein the tie point of lateral-supporting component (22) described in two groups and the container is in the adapter tube
On the axis of mouth (3), in addition the line between lateral-supporting component (22) and the tie point of the container described in two groups passes through institute
The center of cylindrical body (11) is stated, and perpendicular to the axis of the pressure inlet (3).
9. the single-degree-of-freedom supporting arrangement of heavy vessel according to claim 8, which is characterized in that in the pressure inlet
(3) two groups of lateral-supporting components (22) of the two tie points connection on axis form the first lateral-supporting unit (22a), described
Two groups of lateral-supporting components (22) of the first lateral-supporting unit (22a) are and same to horizontal direction perpendicular to the pressure inlet (3)
Setting is stretched out in side；
Connect with line by the center of the cylindrical body (11) and perpendicular to two tie points of the axis of the pressure inlet (3)
Two groups of lateral-supporting components (22) connecing form the second side to bearing unit (22b), and second side is to bearing unit (22b)
Two groups of lateral-supporting components (22) are parallel with the pressure inlet (3), and the extension to the pressure inlet (3) to the one end
Setting is stretched out in direction；
The lateral-supporting component (22) includes the second support (221), connector (222), the both ends point of the connector (222)
It is not hinged with the container, the second support (221)；
The both ends of the connector (222) pass through spherical joint respectively and the container, the second support (221) are hinged.
10. the single-degree-of-freedom supporting arrangement of heavy vessel according to claim 9, which is characterized in that first side to
The connector (222) of the lateral-supporting component (22) of bearing unit (22a) is connecting rod (2221), and the connecting rod (2221) is at least
One end is connected by the spherical joint of U-shaped hole and corresponding end, lateral-supporting component of second side to bearing unit (22b)
(22) connector (222) is damper (2222), and second side be higher than to the height and position of bearing unit (22b) it is described
The height and position of first lateral-supporting unit (22a).
11. the single-degree-of-freedom supporting arrangement of heavy vessel according to any one of claims 1 to 3, which is characterized in that described
Supporting arrangement further includes at least two groups spacing supporting component (23) for being distributed in the border of the container；
The spacing supporting component (23) and the vessels apart are arranged, and limit level of the container in ultimate load
Position, the spacing supporting component (23) and container opposite side side formed for the container against stop surface (233).
12. the single-degree-of-freedom supporting arrangement of heavy vessel according to claim 11, which is characterized in that the spacing supporting
Component (23) includes adjusting seat (231) and horizontal position is adjustably mounted on the stop block (232) on the adjusting seat (231),
The stop block (232) and the outside wall surface of the container are oppositely arranged, and the stop surface (233) is formed in the stop block
(232) on；
The spacing supporting component (23) includes three groups, and one group of spacing supporting component (23) is arranged in the container and the adapter tube
The side that mouth (3) is supported or opposed, and the stop surface (233) of this group of spacing supporting component (23) is vertical with the axis of the pressure inlet (3),
Other two groups of spacing supporting components (23) are symmetricly set on the axis two sides of the pressure inlet (3), and two groups of spacing supporting groups
The stop surface (233) of part (23) is parallel with the axis of the pressure inlet (3) and opposite with the center of the container.
13. the single-degree-of-freedom supporting arrangement of heavy vessel according to claim 11, which is characterized in that the spacing supporting
The height and position of the stop surface (233) of component (23) is suitable with the height and position of the pressure inlet (3).
14. the single-degree-of-freedom supporting arrangement of heavy vessel according to claim 1, which is characterized in that the container is to steam
Vapour generator (1) or main pump.
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|---|---|---|---|
| CN201810866979.9A CN108986934B (en) | 2018-08-01 | 2018-08-01 | Single degree of freedom supporting device for heavy container |
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|---|---|---|---|
| CN201810866979.9A CN108986934B (en) | 2018-08-01 | 2018-08-01 | Single degree of freedom supporting device for heavy container |
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| CN108986934B CN108986934B (en) | 2023-10-31 |
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| CN108986934B (en) | 2023-10-31 |
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