CN208985720U - Unidirectional slidably supported device for reactor vessel - Google Patents
Unidirectional slidably supported device for reactor vessel Download PDFInfo
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- CN208985720U CN208985720U CN201821242018.2U CN201821242018U CN208985720U CN 208985720 U CN208985720 U CN 208985720U CN 201821242018 U CN201821242018 U CN 201821242018U CN 208985720 U CN208985720 U CN 208985720U
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- bearing
- key
- sliding eye
- slidably supported
- unidirectional
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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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Abstract
The utility model relates to the unidirectional slidably supported device for reactor vessel, unidirectional slidably supported device includes for being mounted in container side and the bearing key that stretches out and to the bearing assembly of bearing key bearing in the horizontal direction.Bearing assembly is formed with to be plugged in sliding eye with the corresponding sliding eye of bearing key shape, bearing key, is supported between key and sliding eye there are gap, when supporting key and generating mobile with the expansion of container, the expansion of bearing key and with sliding eye close-fitting.The displacement that there is unidirectional slidably supported device Single Degree Of Freedom to limit remaining all directions, both can used aloned discharge container thermal walking, again can several be applied in combination limitation container all directions displacement and rotation, realize thermal walking, the thermal expansion release of container, and guiding and positioning function, the effectively vertical load of support container can also carry torque, moment of flexure and horizontal load etc. under ocean condition, accident conditions；In addition, unidirectional slidably supported apparatus structure is compact, effective load transmission can be realized in small space.
Description
Technical field
The utility model relates to technical field of nuclear power, more specifically to a kind of unidirectional cunning for reactor vessel
Dynamic supporting arrangement.
Background technique
Pressure vessel is the centre of location in reactor-loop, constitutes one with steam generator, main pump by pipeline and closes
Cyclization road.Temperature can change between room temperature and running temperature when each main equipment of primary Ioops plays heap, shutdown, therefore reactor pressure holds
Device can generate thermal expansion because of temperature change, and steam generator and main pump not only itself generate thermal expansion, to be also superimposed pipeline heat and stretch
The displacement of long hair heat.Because temperature span is larger, reactor heat displacement amount often up to tens of milliseconds, if by the branch of all devices
It holds and is designed as fixed bearing, be entirely limited these thermal expansions and thermal walking, thermal stress suffered by equipment and bearing can be more than allowable
Stress and destroy.
Land raft steam generator is influenced by primary Ioops system characteristic of expanding with heat and contract with cold, it is necessary to biggish thermal walking is discharged,
It supports the support pattern for using connecting rod supporting leg and damping.Connecting rod supporting leg and damping support both ends are all made of spherical joint bearing,
This oscillating bearing allows the rotation unrestricted along pin shaft axis, while allowing along other rotations being respectively limited to amplitude.
Due to the multiple degrees of freedom of connecting rod unstability and spherical joint bearing, bearing allows evaporator larger in conduit axis
Displacement, and allow that limited displacement occurs along remaining direction.Connecting rod outrigger support has multidirectional freedom degree, it is necessary to main pipeline
Stable supporting system is constituted together.
Under terrestrial environment, steam generator is remain stationary for a long time in normal conditions, is divided into accident conditions by side
To percussion, the of short duration inertia force directly proportional to itself is generated.Since equipment center is not overlapped with supporting-point, inertia masterpiece
Torque is generated for supporting member.
Steam generator is remain stationary for a long time under terrestrial environment, and connecting rod outrigger support is subjected only to vertical load.Earthquake,
Under the accident conditions such as cut and external impact, connecting rod supporting leg can not effectively transmit moment loading, need to be carried by damper short
Temporary lateral impact load.
And the durations of the marine environment in ocean platform nuclear power projects are waved, under tilt condition, each main equipment exists
Horizontal direction can generate biggish lasting alternation inertial load, and size is directly proportional to equipment quality.Steam generator, main pump branch
System thermal expansion amount must be discharged by holding, and the outrigger support that land heap-type uses has multidirectional freedom degree, can not provide effective side
To bearing.
Under marine environment, the main pipeline for connecting each equipment be will receive compared with large cyclic alternating load, cause fatigue failure
Risk.The external applied load is caused rolling, pitching, heel, trim and the heaving of reactor foundation structure by Periods.This week
Phase sexual intercourse varying load long term can cause the weakness such as pipes between devices weld seam to generate tired risk in equipment.This requires
Main equipment bearing can effectively carry various load (including periodical alternating load), while have certain lateral degrees of freedom again
Thermal expansion and thermal walking can be discharged, thermal stress is reduced, optimizes pipeline stress.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of unidirectional slidably supported dress for reactor vessel
It sets.
The technical scheme adopted by the utility model to solve the technical problem is as follows: constructing a kind of list for reactor vessel
To slidably supported device, the unidirectional slidably supported device includes for being mounted in container side and stretching out in the horizontal direction
Support key and the bearing assembly to the bearing key bearing；
The bearing assembly is formed with sliding eye corresponding with the bearing key shape, and the bearing key is plugged in the cunning
In dynamic hole, there are gaps between the bearing key and the sliding eye, generate shifting with the expansion of the container in the bearing key
When dynamic, the bearing key expand and with the sliding eye close-fitting.
Preferably, the bearing assembly includes pedestal and the upper cover that is removably mounted on the upside of the pedestal, the pedestal
The sliding eye is formed with upper cover split, the key and the section of the sliding eye of supporting is non-circular.
Preferably, the section shape of the bearing key and the sliding eye is rectangular.
Preferably, the pedestal includes pedestal and erects two blocks on the pedestal, two block intervals
Setting, the upper cover are connected between the upper end of two blocks, are enclosed the sliding eye with the pedestal, block.
Preferably, at least side in the horizontal two opposite sides of the sliding eye is equipped with the level side for adjusting the sliding eye
To width dimensions adjustment unit.
Preferably, the adjustment unit includes the adjustment plate to the width for adjusting the horizontal direction of the sliding eye.
Preferably, the bearing key side opposite with the adjustment plate is equipped with the sideslip being slidably matched with the adjustment plate
Plate.
Preferably, the sliding eye side opposite with the bearing downside of key is equipped with sliding unit, for the branch
Key is held along the axial movement of the sliding eye.
Preferably, the sliding unit includes sliding panel；The downside of the bearing key is equipped with to be slided with the sliding panel
The horizontal slide plate of cooperation.
Preferably, the container is pressure vessel, steam generator or main pump, and the bearing assembly further includes for the bottom
The support adjustment plate of seat installation.
The unidirectional slidably supported device for reactor vessel for implementing the utility model has the advantages that this
The unidirectional slidably supported device of utility model has Single Degree Of Freedom, allows the freedom degree direction to slide, limits remaining all directions
Displacement, not only can used aloned discharge container thermal walking, but also can several be applied in combination limitation container all directions displacement and rotation
Turn, realize thermal walking, the thermal expansion release of container, and guiding, positioning function, effectively the vertical load of support container,
Torque, moment of flexure and the horizontal load etc. under ocean condition, accident conditions can be carried；The unidirectional slidably supported device of the utility model
The frictional force of included sliding surface is stably and controllable；In addition, unidirectional slidably supported apparatus structure is compact, can be realized in small space
Effective load transmission.
Detailed description of the invention
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing:
Fig. 1 is structure when unidirectional slidably supported device in the utility model embodiment is installed to reactor vessel side
Schematic diagram；
Fig. 2 is the structural schematic diagram of the partial view A in Fig. 1；
Fig. 3 is the side schematic view of the unidirectional slidably supported device in Fig. 2；
Fig. 4 is structural schematic diagram when unidirectional slidably supported device in Fig. 1 is installed to the container side of other shapes.
Specific embodiment
For a clearer understanding of the technical features, objectives and effects of the utility model, now control attached drawing is detailed
Illustrate specific embodiment of the present utility model.
The unidirectional sliding for reactor vessel in conjunction with shown in Fig. 1 to Fig. 3, in one preferred embodiment of the utility model
Supporting arrangement 1 includes for being mounted on 2 side of container and the bearing key 11 that stretches out and to bearing 11, key in the horizontal direction
The bearing assembly 12 held.
As shown in Fig. 1 and Fig. 4, container 2 can be the main equipments such as steam generator or main pump, pass through pipeline and pressure respectively
Container connection.The centre of location of the pressure vessel as entire reactor, equipment center position is constant, with steam generator, master
Pump constitutes a closed loop by pipeline.In other embodiments, unidirectional slidably supported device 1 may also be arranged on pressure vessel
On.
When reactor is in cold conditions, each 2 center of container of primary Ioops is located at cold position.Unidirectional slidably supported device 1
Bearing pointdisposal is flexible, may be selected to support more than the immediate vicinity of container 2 or center of gravity, reduces the torque that equipment generates, optimization branch
It holds and the stress of connecting pipe, guarantees primary Ioops security of system.
Temperature can change between room temperature and reactor operating temperature when each container 2 of primary Ioops plays heap, shutdown, therefore reactor
Pressure vessel can generate thermal expansion because of temperature change, and steam generator and main pump not only itself generate thermal expansion, to be also superimposed pipe
Thermal walking occurs for road thermal stretching.
In general, passing through after pipeline connect with pressure vessel respectively in steam generator or main pump, steam generator or main pump
The system of itself thermal expansion and superposition thermally expands all in the axis direction of pipeline.
Again as shown in Figure 2 and Figure 3, bearing assembly 12 is supported by fundamental mechanisms 3 such as the body abutment parts of reactor, bearing group
Part 12 is formed with sliding eye 13 corresponding with bearing 11 shape of key, and the height and position of sliding eye 13 is corresponding with bearing 11 position of key.
Bearing key 11 is plugged in sliding eye 13, and there are gaps between bearing key 11 and sliding eye 13, in bearing key 11 with the swollen of container 2
When swollen generation is mobile, bearing key 11 expansion and with and with 13 close-fitting of sliding eye.
Close-fitting refers to that bearing key and sliding eye are limited perpendicular to the displacement of glide direction, and is inserted into after supporting key expansion
The section shape size of bore portion and the shape sizableness of sliding eye are slided, allows the bearing key after expanding in the axial direction of sliding eye
Upper no complete restrained fixation, can satisfy bearing key can have displacement along sliding eye when continuing prolonged expansion.
When installing unidirectional slidably supported device 1, the axis direction and steam generator or main pump and pressure of sliding eye 13
The conduit axis of container connection is arranged in the same direction, i.e., parallel with the axis of pipeline or coincidence.Supporting key 11 can only be with pipeline in axial direction
Sliding, not only 2 thermal walking of releasable containers, but also the displacement and rotation of remaining all directions can be limited, it realizes the displacement guiding of equipment, determine
To function.
Unidirectional slidably supported device 1 will not only discharge itself expansion, while also discharge superposition thermal walking.Unidirectional sliding branch
Bearing apparatus 1 is main bearing structure, both can the self weight of load bearing equipment vertically downward, the axial load of tumble etc. accident conditions can also be carried
Lotus and torque；In addition, unidirectional slidably supported device 1 is compact-sized, effective load transmission can be realized in small space.
Bearing assembly 12 includes pedestal 121 and the upper cover 122 being removably mounted on the upside of pedestal 121, pedestal 121 and upper cover
122 splits form sliding eye 13.Support the section of key 11 and sliding eye 13 be it is non-circular, bearing key 11 can be limited and corresponding connected
The container 2 that connects rotates, pedestal 121 and upper cover 122 it is sealed after bearing key 11 is fixed on sliding eye 13.
Preferably, the section shape of bearing key 11 and sliding eye 13 is rectangular, in other embodiments, supports 11 He of key
The section shape of sliding eye 13 can also be other polygons or non-circular knot that can prevent bearing key 11 from rotating in sliding eye 13
Structure.When each container 2 is using two or more unidirectional slidably supported devices 1, outside the section of bearing key 11 and sliding eye 13
Shape can also be circle.
In cold conditions, support and reserve clearance for expansion between key 11 and sliding eye 13, can discharge reactor-loop system it is cold,
The thermal walking that equipment occurs when hot variation avoids thermal walking is limited from causing great thermal stress.But system temperature rises to surely
After determining temperature, the thermal expansion amount of key 11 is supported by gap filling, the lateral degrees of freedom of 12 pairs of bearing assembly bearing keys 11 limits, only
Allow to support axial this freedom degree sliding of the key 11 along sliding eye 13.
With the temperature rise of primary Ioops, itself the thermal expansion superposition thermal walking for supporting key 11 is produced by unidirectional slidably supported device 1
Raw specified frictional force is limited, and thermal stress persistently increases.When thermal stress is increased above what unidirectional slidably supported device 1 was set
When stiction, sliding, sustained release thermal stress takes place in unidirectional slidably supported device 1, while equipment center starts to heat
State position is mobile.Entire thermal walking release process can continue until that primary Ioops reach normal operating temperature, thermal stress suffered by equipment
The force of sliding friction set equal to unidirectional slidably supported device 1.
After primary Ioops temperature rise terminates to enter steady operational status, each thermal expansion of container 2, thermal walking process terminate, center
In stable state, unidirectional slidably supported device 1 stops the stiction that sliding generates horizontal direction at this time.It is unidirectional slidably supported
Device 1, which discharges thermal stress process, to be terminated.
After primary Ioops enter hot stable operation, unidirectional slidably supported device 1 starts to carry by marine environment superposition
Normality periodicity alternating load.The rolling due to caused by marine environment, pitching, heel, trim and heaving periodical alternation
Load long term causes each container 2 to bear very big lateral inertial load.
Due to the limitation of sliding eye 13, bearing assembly 12 only allows to support key 11 and translates along sliding friction pair single-degree-of-freedom,
And limit remaining 5 freedom degree movement.The lasting freedom degree direction of the by-produced lateral stiction of sliding friction at this time is supported
Periodicity alternating load caused by imperial marine environment, avoids these alternating loads from acting directly on each 2 pipeline junction of container etc.
Weak link continues longtime running and generates tired risk.
Using unidirectional slidably supported device 1, various load, including periodical alternating load can be effectively balanced, simultaneously
Again there is certain lateral degrees of freedom can discharge thermal expansion and thermal walking, reduce thermal stress, optimizes pipeline stress.
In some embodiments, pedestal 121 including pedestal 1211 and erects two blocks 1212 on pedestal 1211, and two
The setting of a interval of block 1212, upper cover 122 are connected between the upper end of two blocks 1212, enclose with pedestal 1211, block 1212
Conjunction forms sliding eye 13.In other embodiments, the shape of pedestal 121 and upper cover 122 can also be formed after capable of assembling without limitation
Sliding eye 13.
Preferably, the horizontal two opposite sides of sliding eye 13 are equipped with the tune of the width dimensions of the horizontal direction of adjustment sliding eye 13
Whole unit 14.In other embodiments, adjustment unit only can also be set on the side in the horizontal two opposite sides of sliding eye 13
14.In other embodiments, adjustment unit 14 can also be cancelled, keeps the width dimensions of the horizontal direction of sliding eye 13 non-adjustable.
Adjustment unit 14 includes the adjustment plate to the width for adjusting the horizontal direction of sliding eye 13, it is preferable that adjustment plate
Thickness it is adjustable, which is matched by 11 moving distance of field surveys cold and hot lower support key in fact, is provided under cold and hot state
The displacement space of bearing key 11 and unilateral limit, so as to adjust the frictional force between bearing key 11.It is provided by Variable Control
Stably and controllable horizontal friction force, can carry because long time period wave, tilt etc. it is lateral caused by bad working environments
Power optimizes primary coolant circuit pipe stress, reduces tired risk.
Further, bearing key 11 side opposite with adjustment plate is equipped with the sideskid 111 being slidably matched with adjustment plate.Side
Slide plate 111 and adjustment plate constitute friction pair, and sideskid 111 moves together protection bearing key 11 with bearing key 11 and is not worn.
In some embodiments, the side opposite with the bearing downside of key 11 of sliding eye 13 is equipped with sliding unit 15, supplies
Key 11 is supported along the axial movement of sliding eye 13.Match processing 15 thickness of sliding unit in fact by live, micro adjustment equipment
Absolute altitude and levelness.In other embodiments, sliding unit 15 can also be cancelled.
In general, sliding unit 15 includes sliding panel；The downside of bearing key 11 is equipped with the level being slidably matched with sliding panel
Slide plate 112.Horizontal slide plate 112 is fixed on bearing key 11 in the following, constituting friction pair with sliding panel, provides stably and controllable friction
Power, while being produced relative sliding with sliding panel, discharge thermal walking.It preferably, can also be simultaneously in the upper side setting of bearing key 11
It is secondary to constitute friction with upper cover 122 for horizontal slide plate 112.
Preferably, bearing assembly 12 further includes the support adjustment plate 123 installed for pedestal 121, and support adjustment plate 123 is located at
Between pedestal 121 and fundamental mechanism 3, the real horizontal adjustment and absolute altitude fine tuning that container 2 is realized with thickness in scene.
Unidirectionally slidably supported device 1 is used to carry suffered by marine environment reactor steam generator and main pump the utility model
Various load；Friction auxiliary structure had not only met the thermal expansion of steam generator and main pump, thermal walking requirement, but also can provide can
It controls and stable frictional force adapts to long time period sexual intercourse varying load under marine environment, optimize the distribution of force of equipment, avoid
Fatigue failure.
The utility model has the advantage that
1. discharging principle using thermal stress, equipment caused by changing to primary Ioops system cold and hot state is folded from swollen and thermal walking
The equipment center added is displaced and is discharged from swollen, reduces thermal stress；
2. using the friction auxiliary structure based on Variable Control, whole process provides controllable stable side-friction force, to hold
It carries marine environment long time period and the lateral force caused by bad working environments such as waves, tilt, optimize the weak links such as pipeline-weld
Stress reduces tired risk；
3. the lateral adjustment plate with adjustable thickness can adjust bearing according to functional requirement and field measurement situation matching board
It is circumferentially positioned to guarantee that hot gapless is realized for the sideshake of key 11 and support；
4. having bearing adjustment plate, matching board is distinguished after field measurement, realizes equipment leveling and absolute altitude fine tuning；
5. unidirectional slidably supported device 1 is designed using Split moduleization, primary Ioops pressure vessel, steam hair can be applied to
The container 2 of raw device, main pump, reduces the type of bearing, shortens the reduction with manufacturing cost conducive to the design cycle.
It is to be appreciated that above-mentioned each technical characteristic can be used in any combination and unrestricted.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other related technical areas are also included in the patent protection scope of the utility model.
Claims (10)
1. a kind of unidirectional slidably supported device (1) for reactor vessel, which is characterized in that the unidirectional slidably supported device
It (1) include for being mounted on container (2) side and the bearing key (11) that stretches out and to the bearing key in the horizontal direction
(11) bearing assembly (12) supported；
The bearing assembly (12) is formed with sliding eye (13) corresponding with bearing key (11) shape, the bearing key (11)
It is plugged in the sliding eye (13), there are gaps between the bearing key (11) and the sliding eye (13), in the bearing
When key (11) generates mobile with the expansion of the container (2), the bearing key (11) expand and with the sliding eye (13) close-fitting.
2. unidirectional slidably supported device (1) according to claim 1, which is characterized in that the bearing assembly (12) includes
Pedestal (121) and the upper cover (122) being removably mounted on the upside of the pedestal (121), the pedestal (121) and upper cover (122)
Split is formed the sliding eye (13), and the section of bearing key (11) and the sliding eye (13) is non-circular.
3. unidirectional slidably supported device (1) according to claim 2, which is characterized in that the bearing key (11) and described
The section shape of sliding eye (13) is rectangular.
4. unidirectional slidably supported device (1) according to claim 2, which is characterized in that the pedestal (121) includes pedestal
(1211) and two blocks (1212) on the pedestal (1211) are erected, two block (1212) intervals are arranged, institute
It states upper cover (122) to be connected between the upper end of two blocks (1212), be enclosed with the pedestal (1211), block (1212)
Form the sliding eye (13).
5. according to the described in any item unidirectional slidably supported devices (1) of claim 2 to 4, which is characterized in that the sliding eye
(13) at least side in horizontal two opposite sides is equipped with the tune for adjusting the width dimensions of horizontal direction of the sliding eye (13)
Whole unit (14).
6. unidirectional slidably supported device (1) according to claim 5, which is characterized in that the adjustment unit (14) includes
To adjust the adjustment plate of the width of the horizontal direction of the sliding eye (13).
7. unidirectional slidably supported device (1) according to claim 6, which is characterized in that the bearing key (11) with it is described
The opposite side of adjustment plate is equipped with the sideskid (111) being slidably matched with the adjustment plate.
8. according to the described in any item unidirectional slidably supported devices (1) of claim 2 to 4, which is characterized in that the sliding eye
(13) side opposite with the bearing downside of key (11) is equipped with sliding unit (15), for the bearing key (11) along described
The axial movement of sliding eye (13).
9. unidirectional slidably supported device (1) according to claim 8, which is characterized in that the sliding unit (15) includes
Sliding panel；The downside of bearing key (11) is equipped with the horizontal slide plate (112) being slidably matched with the sliding panel.
10. according to the described in any item unidirectional slidably supported devices (1) of claim 2 to 4, which is characterized in that the container (2)
For pressure vessel, steam generator or main pump, the bearing assembly (12) further includes the support tune for the pedestal (121) installation
Whole plate (123).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821242018.2U CN208985720U (en) | 2018-08-01 | 2018-08-01 | Unidirectional slidably supported device for reactor vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821242018.2U CN208985720U (en) | 2018-08-01 | 2018-08-01 | Unidirectional slidably supported device for reactor vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208985720U true CN208985720U (en) | 2019-06-14 |
Family
ID=66780805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821242018.2U Active CN208985720U (en) | 2018-08-01 | 2018-08-01 | Unidirectional slidably supported device for reactor vessel |
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| Country | Link |
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| CN (1) | CN208985720U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108962406A (en) * | 2018-08-01 | 2018-12-07 | 中广核研究院有限公司 | Unidirectional slidably supported device for reactor vessel |
| CN112032075A (en) * | 2020-08-07 | 2020-12-04 | 上海电气（集团）总公司 | Support device for ultra-low temperature thermal decoupling turbine rotor |
-
2018
- 2018-08-01 CN CN201821242018.2U patent/CN208985720U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108962406A (en) * | 2018-08-01 | 2018-12-07 | 中广核研究院有限公司 | Unidirectional slidably supported device for reactor vessel |
| CN108962406B (en) * | 2018-08-01 | 2024-05-10 | 中广核研究院有限公司 | Unidirectional sliding support device for reactor vessel |
| CN112032075A (en) * | 2020-08-07 | 2020-12-04 | 上海电气（集团）总公司 | Support device for ultra-low temperature thermal decoupling turbine rotor |
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