CN109036596B - Layered combined support device for reactor vessel and flexible long tube - Google Patents
Layered combined support device for reactor vessel and flexible long tube Download PDFInfo
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- CN109036596B CN109036596B CN201810866952.XA CN201810866952A CN109036596B CN 109036596 B CN109036596 B CN 109036596B CN 201810866952 A CN201810866952 A CN 201810866952A CN 109036596 B CN109036596 B CN 109036596B
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- 230000000670 limiting effect Effects 0.000 claims description 48
- 230000007246 mechanism Effects 0.000 claims description 28
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 230000005489 elastic deformation Effects 0.000 claims description 5
- 230000003139 buffering effect Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 abstract description 18
- 230000000737 periodic effect Effects 0.000 abstract description 7
- 239000003381 stabilizer Substances 0.000 description 11
- 230000035882 stress Effects 0.000 description 7
- 238000009434 installation Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
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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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- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
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Abstract
The invention relates to a layered combined support device for a reactor vessel and a flexible long tube, wherein the vessel comprises a cylindrical body and the flexible long tube connected with the lower end of the cylindrical body, and the support device comprises: at least three groups of limit supporting components are distributed on the outer ring of the upper end of the cylindrical body, and each limit supporting component is arranged at intervals with the outer wall of the upper end of the cylindrical body to limit the horizontal position of the container under the conditions of impact load, swinging working condition and the like; the support comprises a cylindrical supporting cylinder with a vertical axis, the upper end of the supporting cylinder is fixedly connected to the lower end of the cylindrical body, and the container is supported; and a tube support assembly to release the impact load to which the flexible long tube is subjected. The layered combined support device is supported in a layered combined mode at different heights, meets the requirements of thermal expansion and thermal displacement of the reactor container and the flexible long tube, bears periodic alternating load and external impact load of the reactor container and the flexible long tube in a marine environment, optimizes the stress state, avoids fatigue failure and improves reliability.
Description
Technical Field
The invention relates to the field of nuclear power, in particular to a layered combined supporting device for a reactor container and a flexible long tube.
Background
The reactor vessel (e.g., a pressurizer) and flexible long tube (e.g., a surge tube) operate in a marine environment and experience tilting and rocking due to the superposition of continuously occurring cyclic alternating loads in addition to the equipment weight, the weight of the medium contained in the equipment, and the static loads created by the flow of the medium.
This load subjects the voltage regulator and flexible long tube to constant alternating inertial forces that can lead to fatigue failure of the device or support. In addition, external impact loads subject the voltage regulator and flexible long tube to large transient inertial forces.
The reactor is operated with changes in cold and hot conditions, which cause thermal expansion and thermal displacement of the equipment. When the reactor is in a cold state, the voltage stabilizer and the flexible long tube are in a cold state position. When the reactor is lifted, the temperature of the pressure stabilizer and the flexible long tube gradually rises, so that the pressure stabilizer generates volume thermal expansion, the flexible long tube generates expansion and the axis is thermally displaced.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a layered combined supporting device capable of supporting a reactor container and a flexible long tube in layers at different heights.
The technical scheme adopted for solving the technical problems is as follows: a layered combination support apparatus for a reactor vessel and a flexible long tube, the vessel comprising a cylindrical body and a flexible long tube connected to a lower end of the cylindrical body, the support apparatus comprising:
at least three groups of limit supporting components are distributed on the outer ring of the upper end of the cylindrical body, and each limit supporting component is arranged at intervals with the outer wall of the upper end of the cylindrical body to limit the horizontal position of the container under the condition of impact load;
the support comprises a cylindrical supporting cylinder with a vertically arranged axis, the upper end of the supporting cylinder is fixedly connected to the lower end of the cylindrical body to support the container, the shape of the upper end of the supporting cylinder corresponds to that of the lower end of the cylindrical body, and the material of the supporting cylinder is the same as that of the cylindrical body; and
the pipe body supporting component is used for fixedly supporting the flexible long pipe and is of an elastic deformation structure so as to release impact load born by the flexible long pipe.
Preferably, the limit supporting assembly comprises a supporting head extending towards the side wall surface of the cylindrical body, the supporting head is arranged in a position-adjustable manner in the radial direction of the cylindrical body, and a buffer layer capable of buffering is arranged at the end part of the supporting head opposite to the cylindrical body.
Preferably, the support further comprises a cylindrical cylinder seat arranged at the lower end of the supporting cylinder, and the upper end of the cylinder seat is connected with the lower end of the supporting cylinder;
the upper end of the cylinder seat and the lower end of the supporting cylinder are respectively provided with a flange which is connected with each other, the periphery of the outer wall surface of the supporting cylinder is provided with rib plates which are connected with the flange at the lower end of the supporting cylinder, and the periphery of the outer wall surface of the cylinder seat is provided with rib plates which are connected with the flange at the upper end of the cylinder seat.
Preferably, the support further comprises an annular cushion block clamped between the upper end of the cylinder seat and the lower end of the supporting cylinder;
the support also includes a plurality of legs that support the cartridge.
Preferably, the tube body support assembly includes a tube clamp mounted on the flexible long tube and a support mechanism including a first support assembly that elastically supports the flexible long tube in a vertical direction;
the first supporting component comprises an elastic piece which can stretch out and draw back and a cylindrical body which is sleeved outside the elastic piece, the upper end of the elastic piece is connected with the pipe clamp, and the lower end of the elastic piece is fixedly installed.
Preferably, the first support assembly further includes a limiting mechanism that limits an amount of deformation of the elastic member that deforms downward;
the limiting mechanism comprises a vertically arranged limiting piece, and one end of the limiting piece is fixedly arranged;
the other end of the limiting piece is positioned between the upper end and the lower end of the elastic piece, and a deformation section for compression deformation of the elastic piece is formed between the end parts corresponding to the elastic piece.
Preferably, the upper end of the limiting piece is connected with the upper end of the elastic piece in a positioning way, and the lower end of the limiting piece is arranged in a suspending way;
the limiting mechanism further comprises a limiting part arranged at the lower end of the elastic piece, the limiting part is spaced from the lower end of the limiting piece, the downward moving position of the lower end of the limiting piece is limited, and the deformation of the elastic piece during downward compression is limited.
Preferably, the elastic piece is arranged in the cylinder body, a positioning plate for preventing the elastic piece from being pulled out upwards is arranged at the upper end of the cylinder body, and a through hole is formed in the positioning plate;
and a connecting piece is connected between the upper end of the elastic piece and the pipe clamp, and the connecting piece can vertically movably penetrate through the through hole.
Preferably, the support mechanism includes a second support assembly disposed obliquely for elastically supporting in an oblique direction;
the second supporting component comprises at least one group of dampers, one end of each damper is connected with the pipe clamp, and the other end of each damper is fixedly installed.
The layered combined supporting device for the reactor vessel and the flexible long tube has the following beneficial effects: the layered combined support device can support the reactor vessel and the flexible long tube in a layered combined manner at different heights, not only meets the requirements of thermal expansion and thermal displacement of the reactor vessel and the flexible long tube, but also can bear long-time periodic alternating load and external impact load of the reactor vessel and the flexible long tube in a marine environment, optimize the stress state of the reactor vessel and the flexible long tube, avoid fatigue failure and improve the reliability of equipment.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic view of a reactor vessel and flexible long tube with layered composite support means mounted thereon in accordance with an embodiment of the present invention;
FIG. 2 is a schematic view of the spacing support assembly of FIG. 1;
FIG. 3 is a schematic perspective view of a flexible long tube with a support device mounted thereon according to an embodiment of the present invention;
FIG. 4 is a schematic right side view of the flexible long tube of FIG. 3 with a support device mounted thereon;
FIG. 5 is a schematic top view of the flexible long tube of FIG. 3 with a support device mounted thereon;
fig. 6 is a schematic cross-sectional view of the first support assembly of fig. 3.
Detailed Description
For a clearer understanding of technical features, objects and effects of the present invention, a detailed description of embodiments of the present invention will be made with reference to the accompanying drawings.
As shown in fig. 1, the reactor in a preferred embodiment of the present invention includes a vessel 4 and a flexible long tube 5, wherein the vessel 4 is a pressure stabilizer, and may also be a main device such as a steam generator, a pressure vessel 4, etc.; in this embodiment, the flexible long tube 1 may be a surge tube.
The container 4 comprises a tubular body 41, an upper end enclosure 42 and a lower end enclosure which are respectively arranged at the upper end and the lower end of the tubular body 41, and the flexible long tube 5 is connected with the lower end enclosure of the lower end of the tubular body 41 and communicated with the interior of the container 4. The flexible long pipe 5 is an elongated bent pressure-bearing pipeline, is formed by welding a plurality of sections, has low rigidity, and has the risk of breaking under the action of ocean alternating load and impact load. The flexible long tube 5 is directly connected with a filler neck of the steam generator, and when the cold state and the hot state of the reactor change, the flexible long tube 5 can automatically expand to generate thermal displacement; under accident conditions, the large impact can cause the flexible long tube 5 to swing drastically.
The upper platform 6 corresponding to the upper end position of the cylindrical body 41 is arranged outside the cylindrical body 41, and is mainly used for standing and supporting during maintenance and can also be used for installing the limit supporting assembly 1.
The embodiment of the invention also comprises a layered combined supporting device for layered supporting the reactor vessel 4 and the flexible long tube 5, wherein the supporting device comprises three groups of limiting supporting components 1, a supporting seat 3 and a tube body supporting component 2.
Three groups of limit support assemblies 1 are distributed on the outer ring of the upper end of the cylindrical body 41, limit the horizontal position of the container 4 under the condition of impact load, and each limit support assembly 1 is arranged at intervals with the outer wall of the upper end of the cylindrical body 41.
The holder 3 includes a cylindrical support tube 31 having a vertically arranged axis, the upper end of the support tube 31 is fixedly connected to the lower end of the cylindrical body 41, and normally, the upper end of the support tube 31 is fixedly welded to the lower end of the cylindrical body 41 to support the container 4, and the flexible long tube 5 is led out from the lower end of the support tube 31. The support cylinder 31 can provide a good vertical load bearing capacity and also has a certain horizontal load bearing capacity, and can realize a stable support function.
Preferably, the upper end shape of the support tube 31 corresponds to the lower end shape of the tubular body 41, the material of the support tube 31 is the same as that of the tubular body 41, and the thermal expansion coefficient is the same, and the thermal expansion of the pressure stabilizer itself is released by the temperature gradient of the support tube 31. In other embodiments, when the upper end shape of the supporting cylinder 31 is larger than the lower end shape of the cylindrical body 41, a supporting plate may be provided at the upper end of the supporting cylinder 31, and a mounting hole corresponding to the lower end shape of the cylindrical body 41 may be provided at the middle of the supporting plate, so that the lower end of the cylindrical body 41 is fixed to the supporting plate, and the lower end of the cylindrical body 41 is opposite to the mounting hole.
The tube support assembly 2 fixedly supports the flexible long tube 5, and the tube support assembly 2 is of an elastic deformation structure so as to release the impact load applied to the flexible long tube 5.
In this embodiment, the upper platform 6 corresponds to the height position of the limit bearing assembly 1, and is provided for mounting the limit bearing assembly 1. The limiting support assembly 1, the support 3 and the pipe body support assembly 2 are respectively supported at different heights and are combined and supported in a layered manner at different heights.
The layered combined supporting device can be used for bearing various loads born by the marine environment reactor voltage stabilizer and the flexible long tube 5; the combined support not only meets the thermal expansion and thermal displacement requirements of the voltage stabilizer and the flexible long tube 5, but also can bear long-time periodic alternating load and external impact load in the marine environment, optimize the stress state of the voltage stabilizer and the flexible long tube 5, avoid fatigue failure and improve the reliability of equipment.
In the present embodiment, as shown in fig. 1 and 2, the spacing support assembly 1 is connected to the upper platform 6 by welding, and is spaced from the outer wall of the cylindrical body 41, so as to limit the swinging displacement of the cylindrical body 41, and ensure that the spacing support assembly 1 is not in contact with equipment under a thermal condition. In other embodiments, the limit support assembly 1 may be supported by a dedicated support base or the like.
The spacing support assembly 1 includes a support head 11 protruding toward a side wall surface of the cylindrical body 41, the support head 11 being provided so as to be positionally adjustable in a radial direction of the cylindrical body 41, and normally, the support head 11 is screwed, and a gap between a head fulcrum of the support head 11 and the cylindrical body 41 is adjusted by a screw pair. The end of the supporting head 11 opposite to the cylindrical body 41 is provided with a buffer layer capable of buffering, and the head is added with the buffer layer, such as sponge, rubber and the like, so that the displacement limiting and buffering effects are ensured under accident working conditions and swinging working conditions.
Under the continuous periodic swinging and tilting conditions of the marine environment, each main device can generate larger continuous alternating inertial load in the horizontal direction, and the buffer layer can absorb impact energy generated by swinging of the voltage stabilizer, so that resonance is avoided, and the devices are prevented from being damaged.
The buffer layer is arranged, so that the horizontal displacement of the upper part of the voltage stabilizer can be limited under the working conditions of horizontal impact load such as earthquake, accident and the like, and the bending moment and stress borne by the lower support are reduced so as to reduce the risk of overturning the container 4; under the continuous periodic swinging and tilting conditions of the marine environment, each main device can generate larger continuous alternating inertial load in the horizontal direction, and the buffer layer can absorb impact energy generated by swinging of the voltage stabilizer, so that resonance is avoided, and the devices are prevented from being damaged.
When the opposite end of the supporting head 11 to the cylindrical body 41 is a plane, three or more than three limit supporting assemblies 1 are required to be arranged and uniformly distributed on the circumference of the cylindrical body 41, so as to ensure the balance of the supporting. When the end of the supporting head 11 opposite to the cylindrical body 41 is an arc surface corresponding to the sidewall of the cylindrical body 41, two spacing supporting components 1 may be distributed on two opposite sides of the cylindrical body 41, so as to play a role of spacing.
As further shown in fig. 1, in some embodiments, the support 3 further includes a cylindrical cylinder seat 32 disposed at a lower end of the support cylinder 31, and an upper end of the cylinder seat 32 is connected to a lower end of the support cylinder 31, so that the support cylinder 31 and the cylinder seat 32 can be reduced as much as possible, and difficulty in manufacturing and handling is reduced.
Further, the upper end of the cylinder seat 32 and the lower end of the supporting cylinder 31 are respectively provided with a flange which is connected with each other, the flange is provided with a lock hole, and the cylinder seat 32 and the supporting cylinder 31 can be locked and fixed after the bolts are penetrated. The rib plates connected with the flange at the lower end of the supporting cylinder 31 are distributed on the periphery of the outer wall surface of the supporting cylinder 31, the rib plates connected with the flange at the upper end of the cylinder seat 32 are distributed on the periphery of the outer wall surface of the cylinder seat 32, and the rib plates can increase the supporting strength of the supporting cylinder 31 and the cylinder seat 32.
The support 3 further comprises an annular cushion block 33 clamped between the upper end of the cylinder seat 32 and the lower end of the supporting cylinder 31, and the thickness of the annular cushion block 33 can be processed in an on-site mode, so that the parallelism adjustment of the installation surface of the equipment and the height adjustment of the installation surface of the equipment are realized.
Preferably, the support 3 further comprises a plurality of legs 34 supporting the cartridge holder 32, allowing the support cartridge 31 to be positioned at a suitable height and facilitating the extraction of the flexible long tube 5.
In this embodiment, the tube support assembly 2 includes a tube clamp 21 and a support mechanism 22, where the tube clamp 21 is mounted on the flexible long tube 5, so that the tube support assembly 2 is connected to the flexible long tube 5, and supports the flexible long tube 5, thereby ensuring the stability of the flexible long tube 5. The distribution of the pipe clamps 21 may correspond to the supporting mechanisms 22, and the number may be not limited, depending on the arrangement of the supporting mechanisms 22.
The support mechanism 22 is fixedly attached to the tube clamp 21 at one end and is arranged at the other end to define the initial position of the flexible long tube 5 after the attachment is completed. The support mechanism 22 is an elastically deformable structure to release the impact load to which the flexible long tube 5 is subjected when the flexible long tube 5 is subjected to an external load.
As shown in fig. 1, 3 to 6, the pipe body supporting component 2 is used for bearing various loads borne by the flexible long pipe 5 of the marine environment reactor, and supporting not only meets the thermal expansion and thermal displacement requirements of the flexible long pipe 5, but also meets the long-time periodic alternating load and external impact load under the marine environment, optimizes the stress state of the flexible long pipe 5, avoids fatigue failure and improves the reliability of equipment.
The flexible long tube 5 comprises a plurality of tube sections 51 arranged in a bent manner, and the support means 22 may be arranged on a part of the tube sections 51, such as on one or several of the tube sections 51, or on all of the tube sections 51.
In general, the supporting mechanism 22 is disposed at the middle position of the corresponding pipe section 51, so as to avoid the welding seam of the flexible long pipe 5, and reserve a larger space at the filler neck, so that the flexible long pipe 5 is convenient to install and maintain in subsequent operation.
The elastic deformation direction of the supporting mechanism 22 is perpendicular to the axis of the pipe section 51 at the corresponding position, so that the axial stress balance of the corresponding pipe section 51 can be ensured. In other embodiments, if two or more support mechanisms 22 are provided on the same tube segment 51, the elastic deformation directions of the support mechanisms 22 on the tube segment 51 may be angled to cooperate to position the tube segment 51.
The support mechanism 22 includes a first support component 221 that elastically supports the flexible long tube 5 in the vertical direction, and when the flexible long tube 5 is subjected to an impact load, the first support component 221 can elastically cushion the flexible long tube 5 in the vertical direction, so that the deformation amplitude of the flexible long tube 5 is within a controllable range.
Further, the first supporting assembly 221 includes an elastic member 2211 capable of elastically stretching and contracting, and a cylindrical body 2212 sleeved outside the elastic member 2211, wherein an upper end of the elastic member 2211 is connected with the pipe clamp 21, and a lower end is fixedly installed.
The elastic member 2211 is usually a spring, or may be a structure such as a normal elastic sheet. The elastic member 2211 with a proper elastic coefficient can be selected for installation to match the allowable deformation amount when the load is applied, and the pre-compression amount of the elastic member 2211 can be adjusted for initial load balance during installation.
The elastic member 2211 can cushion the flexible long tube 5 when the flexible long tube is loaded, and reduce impact. The lower end of the elastic member 2211 is fixed on the supporting seat 8, and the supporting seat 8 can be manufactured and installed on site according to the requirement, and can also be a general member.
The first support assembly 221 further includes a limiting mechanism 2213 that limits the amount of deformation of the elastic member 2211 that is deformed downward, and the limiting mechanism 2213 can limit the amplitude of the downward swing of the flexible long tube 5 by using the amount of deformation of the elastic member 2211.
The limiting mechanism 2213 includes a vertically arranged limiting member 2214, and one end of the limiting member 2214 is fixedly arranged. The other end of the stopper 2214 is located between the upper end and the lower end of the elastic member 2211, and a deformation section for compression deformation of the elastic member 2211 is formed between the ends corresponding to the elastic member 2211.
The limiting piece 2214 can be fixed at the upper end, suspended at the lower end, fixed at the lower end and extended upwards at the upper end.
Further, in the present embodiment, the upper end of the limiting member 2214 is connected to the upper end of the elastic member 2211 in a positioning manner, and the lower end of the limiting member 2214 is suspended, and when the elastic member 2211 is compressed, the limiting member 2214 moves downward along with the elastic member 2211.
The limiting mechanism 2213 further includes a limiting portion 2215 disposed at the lower end of the elastic member 2211, where the limiting portion 2215 may be plate-shaped, may be a limiting boss, and is usually disposed on the supporting seat 8, or may be disposed at the lower end of the cylindrical body 2212.
The limiting part 2215 is spaced from the lower end of the limiting part 2214, and limits the downward movement position of the lower end of the limiting part 2214 when the limiting part 2214 is driven to move downward after the elastic part 2211 is compressed, and plays a role in limiting the deformation amount of the elastic part 2211 when the elastic part is compressed downward.
If the lower end of the stopper 2214 is fixed, the upper end of the stopper 2214 can be used to limit the position of the upper end of the elastic member 2211 after being deformed downward, and can also limit the deformation amount of the elastic member 2211 when being compressed downward. In other embodiments, the cylindrical body 2212 may be limited, at least one end of the elastic member 2211 extends out of the cylindrical body 2212, after being compressed, the extending end is compressed into the cylindrical body 2212, and the upper and lower ends of the cylindrical body 2212 are used for limiting, so as to limit the compression deformation amount of the elastic member 2211.
In some embodiments, the elastic member 2211 is disposed in the cylinder 2212, a positioning plate 2216 for preventing the elastic member 2211 from being pulled out upward is disposed at the upper end of the cylinder 2212, and a through hole 2217 is disposed on the positioning plate 2216. A connection member 2218 is connected between the upper end of the elastic member 2211 and the pipe clamp 21, and the connection member 2218 is vertically movably inserted through the through hole 2217. When the flexible long tube 5 is impacted, the impact is transmitted to the elastic member 2211 through the connection member 2218, so that the elastic member 2211 is compressively deformed. The positioning plate 2216 can be omitted, so that the elastic member 2211 directly penetrates the cylindrical body 2212.
The support mechanism 22 includes a second support assembly 222 that is disposed obliquely for resilient support in an oblique direction. The first support unit 221 and the second support unit 222 may be provided separately to support the flexible long tube 5, or may be provided simultaneously to support the flexible long tube 5.
In addition, the first support assembly 221 and the second support assembly 222 may be separately provided on the one pipe section 51, or may be simultaneously provided on the one pipe section 51.
The second support assembly 222 includes a set of dampers 2221, one end of the dampers 2221 being connected to the pipe clamp 21, and the other end being fixedly mountable to the support base 8. The support seat 8 of the first support assembly 221 and the support seat 8 of the second support assembly 222 may be integrally formed or separately formed.
Damper 2221 latches when the speed or acceleration exceeds a corresponding value, forming a rigid support. A set of dampers 2221 may be combined with the first bearing assembly 221, the first bearing assembly 221 being supported in a vertical direction, and the dampers 2221 of the second bearing assembly 222 being supported in an inclined direction.
The second support assembly 222 may include two or more sets of dampers 2221, and each set of dampers 2221 may be supported in combination with the first support assembly 221 in a different inclination direction to form a multi-angle support.
Under the action of external impact or under the working condition of a break accident, the limiting mechanism 2213 limits the downward deformation of the elastic piece 2211 and the locking of the damper 2221, so that a rigid support can be formed to limit the flexible long tube 5 in all directions, and damage or swing caused by overlarge displacement of the flexible long tube 5 is prevented.
The second supporting component 222 may also independently support a certain pipe section 51, where the second supporting component 222 on the pipe section 51 may include a set of dampers 2221, or may include two or more sets of dampers 2221, respectively connected to the flexible long pipe 5, where the inclined directions of the sets of dampers 2221 are different, so as to form a multi-angle support, and ensure load transmission of the flexible long pipe 5 in multiple directions.
The supporting mechanisms 22 can be arranged and installed at a certain angle in a narrow space, so that the load transmission of the flexible long tube 5 in the three-dimensional space can be ensured. When low-speed displacement occurs, such as thermal expansion, low-speed swinging working conditions, and the like, the flexible long tube 5 is allowed to expand freely, thermal stress and a certain periodic alternating load are released, so that the stressed state of the flexible long tube 5 is optimized, and fatigue failure is avoided.
In addition, the rigidity and the precompression amount of the elastic member 2211 and the damper 2221 can be adjusted to balance the initial load in the vertical direction and the initial load in the horizontal direction, so as to ensure that the thermal displacement in the vertical direction and the release of the thermal displacement along the axial direction of the flexible long tube 5 are in a controllable range, and avoid damage caused by overlarge thermal displacement of the flexible long tube 5, wherein the initial load in the vertical direction is mainly the weight of the flexible long tube 5 and the weight of the fluid medium.
The fine adjustment of the arrangement height and the angle of the supporting mechanism 22 can be realized by on-site real matching of the height and the inclination angle of the supporting seat 8, the adjustability is enhanced, and the stress balance of the flexible long tube 5 is ensured.
The supporting device only adopts two supporting components, namely the damper 2221 and the elastic piece 2211, has simple supporting structure form and small occupied space, and meets the space requirement of compactly arranged reactors.
The angle formed by each damper 2221 and the flexible long tube 5 can ensure that the load borne by the flexible long tube 5 is effectively transferred in the three-dimensional plane of the three-dimensional space, thereby optimizing the stress state of the flexible long tube 5. The pipe is allowed to expand freely when low-speed displacement such as thermal expansion and thermal displacement occurs, and thermal stress is released. The rigid support is provided under the action of external impact to limit the flexible long tube 5 in all directions, so that the flexible long tube 5 is prevented from being damaged due to overlarge displacement under the action of inertia force. At the same time, in the event of a break accident, a rigid support is also provided to limit the displacement of the flexible long tube 5, so as to prevent the flexible long tube 5 from whipping.
It will be appreciated that the above technical features may be used in any combination without limitation.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.
Claims (7)
1. A layered combined support device for a reactor vessel and a flexible long tube, the vessel (4) comprising a cylindrical body (41) and a flexible long tube (5) connected to the lower end of the cylindrical body (41), characterized in that the support device comprises:
at least three groups of limit supporting components (1) are distributed on the outer ring of the upper end of the cylindrical body (41), and each limit supporting component (1) is arranged at intervals with the outer wall of the upper end of the cylindrical body (41) to limit the horizontal position of the container (4) under the conditions of impact load and swing working conditions;
the support (3) comprises a cylindrical supporting cylinder (31) with a vertically arranged axis, the upper end of the supporting cylinder (31) is fixedly connected to the lower end of the cylindrical body (41) to support the container (4), the shape of the upper end of the supporting cylinder (31) corresponds to the shape of the lower end of the cylindrical body (41), and the material of the supporting cylinder (31) is the same as that of the cylindrical body (41); and
the pipe body supporting component (2) is used for fixedly supporting the flexible long pipe (5), and the pipe body supporting component (2) is of an elastic deformation structure so as to release impact load born by the flexible long pipe (5);
the limiting support assembly (1) comprises a support head (11) which extends towards the side wall surface of the cylindrical body (41), the support head (11) is arranged in a position-adjustable manner in the radial direction of the cylindrical body (41), and a buffer layer capable of buffering is arranged at the end part of the support head (11) opposite to the cylindrical body (41);
the support (3) further comprises a cylindrical cylinder seat (32) arranged at the lower end of the supporting cylinder (31), and the upper end of the cylinder seat (32) is connected with the lower end of the supporting cylinder (31);
the upper end of the cylinder seat (32) and the lower end of the supporting cylinder (31) are respectively provided with a flange which is connected with each other, rib plates which are connected with the flange at the lower end of the supporting cylinder (31) are distributed on the periphery of the outer wall surface of the supporting cylinder (31), and rib plates which are connected with the flange at the upper end of the cylinder seat (32) are distributed on the periphery of the outer wall surface of the cylinder seat (32).
2. The layered combination support device according to claim 1, characterized in that the support (3) further comprises an annular spacer (33) interposed between the upper end of the cartridge seat (32) and the lower end of the support cartridge (31);
the support (3) further comprises a plurality of legs (34) for supporting the cartridge holder (32).
3. The layered combination support apparatus according to claim 1, wherein the tube body support assembly (2) comprises a tube clamp (21) and a support mechanism (22), the tube clamp (21) being mounted on the flexible long tube (5), the support mechanism (22) comprising a first support assembly (221) for elastically supporting the flexible long tube (5) in a vertical direction;
the first supporting component (221) comprises an elastic piece (2211) capable of elastically stretching and contracting and a cylindrical body (2212) sleeved outside the elastic piece (2211), the upper end of the elastic piece (2211) is connected with the pipe clamp (21), and the lower end of the elastic piece is fixedly installed.
4. A layered combination support apparatus according to claim 3, wherein the first support assembly (221) further comprises a limiting mechanism (2213) defining an amount of deformation of the elastic member (2211) to be deformed downward;
the limiting mechanism (2213) comprises a vertically arranged limiting piece (2214), and one end of the limiting piece (2214) is fixedly arranged;
the other end of the limiting piece (2214) is positioned between the upper end and the lower end of the elastic piece (2211), and a deformation section for the compression deformation of the elastic piece (2211) is formed between the ends corresponding to the elastic piece (2211).
5. The layered combination support apparatus according to claim 4, wherein an upper end of the limiting member (2214) is connected with an upper end of the elastic member (2211) in a positioning manner, and a lower end of the limiting member is suspended;
the limiting mechanism (2213) further comprises a limiting part (2215) arranged at the lower end of the elastic piece (2211), the limiting part (2215) is spaced from the lower end of the limiting piece (2214), the downward moving position of the lower end of the limiting piece (2214) is limited, and the deformation of the elastic piece (2211) in downward compression is limited.
6. The layered combination support apparatus according to claim 4, wherein the elastic member (2211) is disposed in the cylindrical body (2212), a positioning plate (2216) for preventing the elastic member (2211) from being pulled out upward is disposed at an upper end of the cylindrical body (2212), and a through hole (2217) is formed in the positioning plate (2216);
a connecting piece (2218) is connected between the upper end of the elastic piece (2211) and the pipe clamp (21), and the connecting piece (2218) can penetrate through the through hole (2217) in a vertically movable mode.
7. A layered combined support arrangement according to claim 3, characterized in that the support means (22) comprises a second support assembly (222) arranged obliquely for elastic support in an oblique direction;
the second support assembly (222) comprises at least one group of dampers (2221), one end of each damper (2221) is connected with the pipe clamp (21), and the other end of each damper is fixedly installed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810866952.XA CN109036596B (en) | 2018-08-01 | 2018-08-01 | Layered combined support device for reactor vessel and flexible long tube |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810866952.XA CN109036596B (en) | 2018-08-01 | 2018-08-01 | Layered combined support device for reactor vessel and flexible long tube |
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| CN109036596B true CN109036596B (en) | 2024-03-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111980763B (en) * | 2020-08-25 | 2022-08-16 | 浙江燃创透平机械股份有限公司 | Flexible supporting structure |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB565186A (en) * | 1942-03-09 | 1944-10-31 | Gen Spring Corp | Improvements in or relating to devices for supporting and bracing pipe lines |
| GB1461800A (en) * | 1973-06-28 | 1977-01-19 | Combustion Eng | Support of pressure vessels |
| JPS6110786A (en) * | 1984-02-21 | 1986-01-18 | スト−ン・アンド・ウエブスタ−・エンジニアリング・コ−ポレ−シヨン | Nuclear reactor and supporter thereof |
| US5152253A (en) * | 1991-01-28 | 1992-10-06 | Westinghouse Electric Corp. | Vessel structural support system |
| JPH0557572U (en) * | 1992-01-06 | 1993-07-30 | 石川島播磨重工業株式会社 | Bottom receiving pipe support device |
| US5379331A (en) * | 1992-03-31 | 1995-01-03 | Framatome | Transverse holding device for a steam generator of a pressurized water nuclear reactor, and for its adjustment |
| JP2011043201A (en) * | 2009-08-20 | 2011-03-03 | Toshiba Corp | Damping support |
| CN105626972A (en) * | 2016-03-29 | 2016-06-01 | 中国能源建设集团广东省电力设计研究院有限公司 | Pipe limiting spring support and support set |
| CN205350554U (en) * | 2016-01-28 | 2016-06-29 | 国网河南省电力公司电力科学研究院 | Three gyro wheel loading board spring bracket |
| CN106098121A (en) * | 2016-06-23 | 2016-11-09 | 中广核研究院有限公司 | Gas-liquid flow siphunculus and containment |
| CN209029115U (en) * | 2018-08-01 | 2019-06-25 | 中广核研究院有限公司 | For reactor vessel and the layered combination supporting arrangement of flexible elongate tubular |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB612494A (en) * | 1945-08-04 | 1948-11-12 | Gen Spring Corp | Sway braces for pipelines or like parts |
-
2018
- 2018-08-01 CN CN201810866952.XA patent/CN109036596B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB565186A (en) * | 1942-03-09 | 1944-10-31 | Gen Spring Corp | Improvements in or relating to devices for supporting and bracing pipe lines |
| GB1461800A (en) * | 1973-06-28 | 1977-01-19 | Combustion Eng | Support of pressure vessels |
| JPS6110786A (en) * | 1984-02-21 | 1986-01-18 | スト−ン・アンド・ウエブスタ−・エンジニアリング・コ−ポレ−シヨン | Nuclear reactor and supporter thereof |
| US5152253A (en) * | 1991-01-28 | 1992-10-06 | Westinghouse Electric Corp. | Vessel structural support system |
| JPH0557572U (en) * | 1992-01-06 | 1993-07-30 | 石川島播磨重工業株式会社 | Bottom receiving pipe support device |
| US5379331A (en) * | 1992-03-31 | 1995-01-03 | Framatome | Transverse holding device for a steam generator of a pressurized water nuclear reactor, and for its adjustment |
| JP2011043201A (en) * | 2009-08-20 | 2011-03-03 | Toshiba Corp | Damping support |
| CN205350554U (en) * | 2016-01-28 | 2016-06-29 | 国网河南省电力公司电力科学研究院 | Three gyro wheel loading board spring bracket |
| CN105626972A (en) * | 2016-03-29 | 2016-06-01 | 中国能源建设集团广东省电力设计研究院有限公司 | Pipe limiting spring support and support set |
| CN106098121A (en) * | 2016-06-23 | 2016-11-09 | 中广核研究院有限公司 | Gas-liquid flow siphunculus and containment |
| CN209029115U (en) * | 2018-08-01 | 2019-06-25 | 中广核研究院有限公司 | For reactor vessel and the layered combination supporting arrangement of flexible elongate tubular |
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| CN109036596A (en) | 2018-12-18 |
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