WO2013089406A1 - 원자로 상부 구조물의 인양 샤클 - Google Patents
원자로 상부 구조물의 인양 샤클 Download PDFInfo
- Publication number
- WO2013089406A1 WO2013089406A1 PCT/KR2012/010728 KR2012010728W WO2013089406A1 WO 2013089406 A1 WO2013089406 A1 WO 2013089406A1 KR 2012010728 W KR2012010728 W KR 2012010728W WO 2013089406 A1 WO2013089406 A1 WO 2013089406A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- reactor
- lifting
- shackle
- coupled
- connection member
- Prior art date
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Classifications
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
- G21C19/02—Details of handling arrangements
- G21C19/10—Lifting devices or pulling devices adapted for co-operation with fuel elements or with control elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
- B66C1/34—Crane hooks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
- B66C1/66—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G15/00—Chain couplings, Shackles; Chain joints; Chain links; Chain bushes
- F16G15/04—Quickly-detachable chain couplings; Shackles chain links with rapid junction means are classified according to the corresponding kind of chain
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G15/00—Chain couplings, Shackles; Chain joints; Chain links; Chain bushes
- F16G15/04—Quickly-detachable chain couplings; Shackles chain links with rapid junction means are classified according to the corresponding kind of chain
- F16G15/06—Shackles designed for attachment by joint pins to chain elements, e.g. D-shackles so called harp links; the D-chain links are classified according to the corresponding kind of chain
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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
Definitions
- One embodiment of the present invention relates to the structure of a shackle coupled to a hook to lift a reactor superstructure.
- a nuclear reactor refers to a device that controls the chain reaction so that a large amount of mass defect energy released as a result of the chain fission reaction is used as a power to use the thermal energy generated from the nuclear fission. It is common to have an upper structure on top of the head of the reactor, and a lifting device is utilized to disassemble the upper structure and to move and reinstall the disassembled parts.
- Reactor fuel replacement is usually done every 18 months, and during the nuclear fuel replacement period, the integral reactor superstructures are typically lifted and moved to temporary storage.
- a hydroset having a shock absorbing function is coupled to a polar crane to prevent up and down vibration, and a lifting frame for fastening or disassembling with the other single hook of the hydroset.
- Lineage shackles were used.
- the APR 1400 integrated reactor superstructure must reduce the weight of the shackle due to the increase in the seismic acceleration, and due to the increase in the reactor head weight, Shackles may be considered.
- One object of the present invention is to provide a lifting shackle having a more improved structure.
- the lifting shackle of the reactor superstructure according to an embodiment of the present invention, the first member and the first extending to a predetermined thickness and length parallel to each other and having a top and a bottom, respectively Two members, an upper portion of the first member and the upper portion of the second member, the first connecting member fastened to the hook, and a hollow so as to be pinned with the reactor upper structure, respectively, the first member And a fastening portion formed at a lower portion of the second member and extending from the first connection member to the side ends of the first member and the second member at a predetermined curvature and protruding upwards to be applied to the first connection member. It includes a stress reducing portion formed on top of the first member and the second member to reduce the bending stress.
- a maximum stress concentration portion is formed at both ends of the first connection member that meets the first member and the second member, and an extension line extending the uppermost end of the stress reduction portion and the maximum stress concentration portion.
- the length of may be formed to be longer than the thickness of the first connection member.
- the extension line may be formed to have a length corresponding to 1.15 times to 1.6 times the thickness of the first connection member.
- the extension line may be formed to maintain a predetermined angle with respect to the direction in which the first member extends vertically.
- the angle range may be formed to be 5 ° to 15 °.
- the fastening part may be coupled to a tripod assembly having three legs which are formed to be adjustable in length, and one end of the tripod assembly may be coupled to the reactor upper structure.
- the second member may further include a second connection member connecting the first member and the second member to each other under the first member and the second member.
- the lifting shackle of the reactor upper structure related to at least one embodiment of the present invention configured as described above is formed so that each member constituting it has the maximum curvature, thereby reducing the stress concentrated in a specific portion.
- the connecting member by minimizing the bending stress applied to the connecting member, it has a lower lifting weight and excellent lifting capacity than the existing shackle.
- FIG. 1 is an exploded perspective view showing a schematic configuration of an integrated reactor superstructure according to an embodiment of the present invention.
- Figure 2 is a conceptual diagram showing a coupling relationship of the support frame, the tripod assembly and the lifting shackle of the air plenum according to an embodiment of the present invention.
- FIG. 3 is a conceptual diagram of a tripod assembly according to an embodiment of the present invention.
- FIGS. 4A and 4B are perspective and sectional views of the lifting shackle according to one embodiment of the present invention.
- 5 and 5b are state diagrams showing a stress concentration state of the lifting shackle shown in FIG.
- nuclear reactors are devices that use the mass-depletion energy resulting from fission reactions. Unlike a thermal furnace in which combustion is automatically expanded by combustion heat, nuclear reactors perform nuclear fission reactions using neutrons, which are released during nuclear fission of fuel.
- the nuclear fission reaction of a nuclear reactor can control the combustion of fuel by controlling the number of neutrons absorbed by the fuel.In order to continue nuclear fission in a nuclear reactor, at least one of the neutrons released during nuclear fission is absorbed by the fuel again to cause nuclear fission again. do. If the number is 1, the fission reaction remains constant, neither decreasing nor increasing, which is called the criticality of the reactor. In addition, when the number exceeds 1, the number of fission reactions gradually increases, which is called a supercritical state, and vice versa.
- the control of the reactor is controlled by adjusting the number of neutrons by inserting or removing a material having a large neutron absorption cross-section such as cadmium or boron into the core, and also using a method of changing the amount of reflector or moderator.
- an integrated reactor upper structure 100 may include a fan module 110, an upper module 120, a central module 130, and a lower module 140.
- the fan module 110 is positioned above the reactor head, and a cooling fan 111, a lifting structure 112, and an air plenum 113 may be integrally formed.
- the upper module 120 may be coupled to a lower portion of the air plenum 113.
- the cooling fan 111 is a device that is installed to smoothly cool the inside of the reactor upper structure 100 to adjust the flow of air to be described later.
- the lifting structure 112 may be formed of a tripod and a shackle, the tripod is for lifting the whole of the integrated superstructure 100 and the crane 300 is connected to the shackle connected to the top of the tripod to perform the lifting operation. Can be.
- the air plenum 113 may be integrally formed while supporting the cooling fan 111 and the lifting structure 112.
- a ring beam may be coupled to a lower portion of the air plenum 113 in a horizontal direction, and the upper module 120 may be coupled to a lower portion of the ring beam.
- an upper shroud plate 121 is formed in a cylindrical shape so as to open up and down inside the upper module 120, and a predetermined distance along an inner circumferential surface of the upper shroud plate 121 to form an air passage.
- An upper baffle 122 fixed to be spaced apart may be formed.
- the central module 130 and the lower module 140 are formed with a central shroud plate 131, a central baffle 132, a lower shroud plate 141, and a lower baffle 142. same.
- the central module 130 is preferably provided with an air inlet 135 to pass through both the central shroud plate 131 and the central baffle 132.
- the shroud plates 121, 131, and 141 are formed to surround the outside of the baffles 122, 132, and 142 to serve as a cover for protecting a structure provided in each module.
- the shroud plates 121, 131, and 141 and the baffles 122, 132, and 142 are vertically coupled such that one end is coupled to the upper portion of the upper module 120 and the other end is coupled to the lower portion of the lower module 140. It is preferable to be fixed to the support column 105 to be formed.
- the support column 105 is a structure for supporting the reactor upper structure 100 in the vertical direction, the H beam may be utilized to maintain rigidity. It is preferable that a control rod driving device and a control rod are provided inside the lower baffle 142.
- Air flow generated by the cooling fan 111 sucks air through the air inlet 135, and the sucked air is between the baffles 122, 132, and 142 and the shroud plates 121, 131, and 141.
- By moving through the flow space of the control rod drive and the reactor head can be facilitated cooling.
- the reactor superstructure 100 provided on top of the reactor head has a function of lifting the control rod drive and the reactor head when replacing the fuel.
- the control rod driving device installed inside the lower module 140 is a device for inserting and withdrawing a control rod for controlling the nuclear reaction rate of the reactor core.
- the control rod drive device may have a tube shape in which a honeycomb-shaped space is drilled so that a plurality of control rods can be inserted and separated.
- the control rod regulates the nuclear reaction rate of the reactor core while flowing in the vertical direction while being inserted into the control rod drive.
- the control rod drive device may be provided with a control rod position indicating sensor for detecting the position of the control rod, it may include a power source for driving the control rod.
- the work related to the control rod driving device is often required, the replacement of power source for driving the control rod, repair and maintenance work, replacement of the control rod position sensor, repair and maintenance work, control rod position instruction
- calibration may be performed.
- the cooling fan 111, the lifting structure 112, and the air plenum 113 are separated and lifted first, and then the cable support unit provided thereunder. After dismantling and removing the baffles (122, 132, 142) and the shroud plate (121, 131, 141) had to be separated.
- an integrated reactor head structure is used to integrally form the fan module 110, the upper module 120, the central module 130, and the lower module 140. Done.
- FIG. 2 is a conceptual diagram illustrating a coupling relationship between a support frame, a tripod assembly, and a lifting shackle of an air plenum according to an embodiment of the present invention
- FIG. 3 is a conceptual diagram of a tripod assembly according to an embodiment of the present invention.
- 4A and 4B are a perspective view and a cross-sectional view of the lifting shackle according to an embodiment of the present invention
- Figures 5 and 5B is a state diagram showing the stress concentration state of the lifting shackle shown in FIG.
- the support frame 210 is formed to support the load of the air plenum 113.
- Tripod assembly has three legs (Leg, 230) and a fastening body 220 formed on the upper, each leg 230 extends from the fastening body 220 to the support frame 210.
- Legs 230 may each be formed to include a fastening nut 231 to be adjustable in the vertical direction. As the tightening nut 231 rotates, the length of the leg 230 may be adjusted. For this reason, the support frame 210 can be kept parallel with respect to a horizontal plane at the time of lifting. And the legs 230 are each formed rotatably around the fastening body 220.
- Each leg 230 coupled to the fastening body 220 extends radially to maintain an angle of 120 degrees to each other.
- the fastening body 220 is coupled to the fastening portion 251 of the lifting shackle 250 by the pin 240.
- the fastening body 220 and the fastening part 251 may include holes 251a to allow the pins 240 to pass through, respectively.
- the lifting shackle 250 extends to a certain thickness and length in parallel with each other, and includes a first member 252 and a second member 253 having upper and lower portions, respectively. do. At least a portion of the outer circumference of the first member 252 and the second member 253 is formed to have a predetermined curvature.
- the lifting shackle 250 may be integrally formed by a casting method.
- the members constituting the lifting shackle may be coupled to each other by a coupling means. That is, after arranging the first member 252 and the second member 253, the upper and lower portions may be coupled to each other using the connection member.
- the coupling means may be a fastening method between the members by welding or screw.
- first connection member 254 connects the upper portion of the first member 252 and the upper portion of the second member 253 to each other and is coupled to the hook of the polar crane.
- the contact portion of the first connection member 254 coupled to the hook has a shape corresponding to the hook such that the surface contacting the hook is maximum.
- a fastening part 251 is formed at a lower portion of the first member 252 and the second member 253 to allow the pin 240 to penetrate to be coupled to the fastening body 220.
- a second connection member 255 may be further spaced apart from the first connection member 254 to connect the first member 252 and the second member 253 to each other. That is, lower portions of the first member 252 and the second member 253 may be connected to each other by the second connection member 255.
- the second connection member 255 When the second connection member 255 is lifted by a hook coupled to the first connection member, the lower portion of the first member 252 and the second member 253 are mutually supported by the load of the air plenum 113. To prevent deformation towards That is, the second connection member 255 supports to prevent the lower portion of the first member 252 and the second member 253 from being deformed by an external force.
- first member 252, the second member 253, and the first connecting member 254 form a U-shaped ring so that they can engage with the hook
- second connecting member 255 is formed of the U-shaped ring.
- the lower portion of the first member 252 and the second member 253 may be extended across the middle portion to prevent movement toward the inside or the outside of the U-shaped ring.
- the second connection member is formed to connect the first member 252 and the second member 253 to each other under the first member 252 and the second member 253 so that the lifting tripod assembly is the first member. It also serves to prevent movement between and the second member.
- Stress reduction parts 252a and 253a are formed to reduce stress generated by one side of the first connection member being struck.
- the stress reduction portions 252a and 253a extend at a predetermined curvature from the first connection member 254 to the side ends of the members 252 and 253 and protrude upward.
- the extension lines L1 and L2 extending the uppermost portions 252c and 253c of the stress reducing portions 252a and 253a and the maximum stress concentration portions 252b and 253b of the first connection member 254 are defined by the first member ( 252 is preferably formed to maintain a predetermined angle range a, i.e., 5 ° to 15 ° with respect to the direction in which it extends vertically. It was confirmed that the positions of the maximum stress concentration portions 252b and 253b are changed outside the angle range a.
- the extension line may be a line extending from the maximum stress concentration part Max and the minimum stress concentration part Min to each other.
- the top ends 252c and 253c of the stress reduction portions 252a and 253a may be any one of the minimum stress concentration portions Min of the lifting shackle.
- the length d2 of the extension lines L1 and L2 is preferably 1.15 to 1.6 times the thickness d1 of the first connection member. If the length d2 of the extension lines L1 and L2 is 1.15 times or less than the thickness d1 of the first connection member, the cross-sectional area of the lifting shackle proportional to the length d2 of the extension lines L1 and L2 does not increase sufficiently. As a result, the stress is not reduced as much as desired. When the length d2 of the extension lines L1 and L2 becomes 1.6 times or more than the thickness d1 of the first connection member, the positions of the maximum stress concentration portions 252b and 253b of the lifting shackle may be changed. Not desirable
- the length d2 of the extension lines L1 and L2 and the angle a between the extension lines L1 and L2 and the first member are obtained by analyzing the stress acting on the lifting shackle by computer simulation. As shown in FIGS. 5A and 5B, the first connection member 254 and the first member 252 when the extension lines L1 and L2 are within the range of the length d2 within the predetermined angular range a. ) Or the cross-sectional area is increased at the site where the second member 253 is in contact with each other to reduce the stress within a satisfactory design range.
- the unit weight of the lifting shackle within the design range of the lifting shackle by minimizing the load per unit weight applied to the portion where the first connection member 254 and the first member 252 or the second member 253 contact each other.
- the maximum limit load can be maximized.
- the stress reducing units 252a and 253a formed in the first member 252 and the second member 253 may maximize the effect of the statically indeterminate beam resulting in the stress reduction for a specific region. . That is, by minimizing the stress applied to the maximum stress concentration portion between the first connecting member and the first member and the second member, the lifting force of the lifting shackle is increased while reducing the own load of the lifting shackle compared to the existing shackle. You can.
- the lifting shackle of the reactor superstructure described above is not limited to the configuration and method of the above-described embodiments, the embodiments may be selectively all or part of each of the embodiments so that various modifications can be made It can be configured in combination.
- One embodiment of the present invention may be applied to a shackle that lifts a reactor superstructure.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- High Energy & Nuclear Physics (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
Description
Claims (7)
- 구조물 인양을 위한 후크에 결합되는 샤클에 있어서,서로 평행하게 일정 두께 및 길이로 연장되고 각각 상부와 하부를 구비하는 제1 멤버와 제2 멤버;상기 제1 멤버의 상부와 제2 멤버의 상부를 서로 연결하고, 상기 후크에 체결되는 제1 연결 멤버;상기 원자로 상부 구조물과 핀결합할 수 있도록 중공을 구비하여 각각 상기 제1 멤버와 제2 멤버의 하부에 형성되는 체결부; 및상기 제1 연결 멤버로부터 상기 제1 멤버 및 제2 멤버의 측단에 이르기까지 일정 곡률로 연장되고 상부를 향하여 돌출되어, 상기 제1 연결 멤버에 가해지는 굽힘 응력을 감소할 수 있도록 상기 제1 멤버 및 제2 멤버의 상부에 형성되는 응력감소부를 포함하는 것을 특징으로 하는 원자로 상부 구조물의 인양 샤클.
- 제1항에 있어서,상기 제1 멤버 및 제2 멤버와 만나는 상기 제1 연결 멤버의 양단에 최대 응력 집중 부분이 형성되고,상기 응력감소부의 최상단과 상기 최대 응력 집중 부분을 연장하는 연장선의 길이는 상기 제1 연결 멤버의 두께보다 긴 것을 특징으로 하는 원자로 상부 구조물의 인양 샤클.
- 제2항에 있어서,상기 연장선은 상기 제1 연결 멤버의 두께에 비해 1.15배 내지 1.6배에 해당하는 길이를 갖도록 형성되는 것을 특징으로 하는 원자로 상부 구조물의 인양 샤클.
- 제3항에 있어서,상기 연장선은 상기 제1 멤버가 수직으로 연장되는 방향에 대하여 소정의 각도를 유지하도록 형성되는 것을 특징으로 하는 원자로 상부 구조물의 인양 샤클.
- 제4항에 있어서,상기 각도 범위는 5°내지 15°인 것을 특징으로 하는 원자로 상부 구조물의 인양 샤클.
- 제1항에 있어서,상기 체결부는 길이조절가능하게 형성되는 세개의 다리를 구비하는 삼각대 조립체에 결합되고,상기 삼각대 조립체의 일단은 상기 원자로 상부 구조물에 결합되는 것을 특징으로 하는 원자로 상부 구조물의 인양 샤클.
- 제1항에 있어서,상기 제1 멤버와 제2 멤버의 하부에서 상기 제1 멤버와 제2 멤버를 서로 연결하는 제2 연결 멤버를 더 포함하는 것을 특징으로 하는 원자로 상부 구조물의 인양 샤클.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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US14/365,185 US9978468B2 (en) | 2011-12-16 | 2012-12-11 | Lifting shackle of head assembly for nuclear reactor |
CN201280062192.8A CN103998366B (zh) | 2011-12-16 | 2012-12-11 | 核反应堆上部构造物的吊起钩环 |
EP12856681.7A EP2792631B1 (en) | 2011-12-16 | 2012-12-11 | Lifting shackle of head assembly for nuclear reactor |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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KR20110136675 | 2011-12-16 | ||
KR10-2011-0136675 | 2011-12-16 | ||
KR1020120142621A KR20130069423A (ko) | 2011-12-16 | 2012-12-10 | 원자로 상부 구조물의 인양 샤클 |
KR10-2012-0142621 | 2012-12-10 |
Publications (1)
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WO2013089406A1 true WO2013089406A1 (ko) | 2013-06-20 |
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PCT/KR2012/010728 WO2013089406A1 (ko) | 2011-12-16 | 2012-12-11 | 원자로 상부 구조물의 인양 샤클 |
Country Status (5)
Country | Link |
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US (1) | US9978468B2 (ko) |
EP (1) | EP2792631B1 (ko) |
KR (1) | KR20130069423A (ko) |
CN (1) | CN103998366B (ko) |
WO (1) | WO2013089406A1 (ko) |
Families Citing this family (2)
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CN114014140B (zh) * | 2021-11-04 | 2023-07-18 | 中广核研究院有限公司 | 反应堆模块吊装装置 |
USD1007277S1 (en) * | 2023-07-24 | 2023-12-12 | Shanghai Jinli special rope belt Co., Ltd. | Shackle |
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JPH0721681U (ja) * | 1993-09-22 | 1995-04-21 | 東洋運搬機株式会社 | 吊り具 |
KR19980011649U (ko) * | 1996-08-21 | 1998-05-25 | 김상환 | 권취강선의 운반장치 |
JP2000205236A (ja) * | 1999-01-14 | 2000-07-25 | Masakazu Ishigasaki | シャックル |
JP2010173792A (ja) * | 2009-01-29 | 2010-08-12 | Elephant Chain Block Co Ltd | シャックル |
US20110175383A1 (en) * | 2010-01-21 | 2011-07-21 | Segura Victor J | Shackle apparatus |
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US2435336A (en) * | 1944-08-09 | 1948-02-03 | Robert E Belvel | Shackle |
US4134255A (en) * | 1977-02-24 | 1979-01-16 | Columbia Steel Casting Co., Inc. | Drag chain |
GB2192374A (en) | 1986-07-10 | 1988-01-13 | Reilloc Chain Ltd | Metal article having at least one surface for sliding contact with a further surface |
FR2735198B1 (fr) * | 1995-06-12 | 1997-08-01 | Wichard | Piece d'accastillage de type manille-cosse |
TW353753B (en) * | 1997-07-18 | 1999-03-01 | Toshiba Corp | Reactor internal equipment hoisting apparatus |
KR100844439B1 (ko) | 2007-01-02 | 2008-07-07 | 한국전력기술 주식회사 | 모듈형 원자로 상부집합체 |
US8171715B2 (en) * | 2010-01-21 | 2012-05-08 | Useful Products, L.L.C. | Shackle apparatus |
US8631636B2 (en) * | 2011-09-19 | 2014-01-21 | Tecsis Delta Metrics | Shackle assembly |
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2012
- 2012-12-10 KR KR1020120142621A patent/KR20130069423A/ko active Search and Examination
- 2012-12-11 CN CN201280062192.8A patent/CN103998366B/zh active Active
- 2012-12-11 US US14/365,185 patent/US9978468B2/en active Active
- 2012-12-11 WO PCT/KR2012/010728 patent/WO2013089406A1/ko active Application Filing
- 2012-12-11 EP EP12856681.7A patent/EP2792631B1/en active Active
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JPH0721681U (ja) * | 1993-09-22 | 1995-04-21 | 東洋運搬機株式会社 | 吊り具 |
KR19980011649U (ko) * | 1996-08-21 | 1998-05-25 | 김상환 | 권취강선의 운반장치 |
JP2000205236A (ja) * | 1999-01-14 | 2000-07-25 | Masakazu Ishigasaki | シャックル |
JP2010173792A (ja) * | 2009-01-29 | 2010-08-12 | Elephant Chain Block Co Ltd | シャックル |
US20110175383A1 (en) * | 2010-01-21 | 2011-07-21 | Segura Victor J | Shackle apparatus |
Also Published As
Publication number | Publication date |
---|---|
CN103998366A (zh) | 2014-08-20 |
CN103998366B (zh) | 2016-04-20 |
EP2792631A4 (en) | 2015-07-15 |
KR20130069423A (ko) | 2013-06-26 |
US9978468B2 (en) | 2018-05-22 |
US20140314195A1 (en) | 2014-10-23 |
EP2792631B1 (en) | 2016-08-31 |
EP2792631A1 (en) | 2014-10-22 |
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