Hoisting fixing device and hoisting equipment for inner and outer sleeves of nuclear power gate

Abstract

The utility model discloses a hoisting and fixing device and hoisting equipment for inner and outer sleeves of a nuclear power gate, and relates to the technical field of nuclear power containment gate assembly, the hoisting and fixing device for the inner and outer sleeves of the nuclear power gate comprises an inner sleeve, an outer sleeve, a plurality of pairs of limiting and fixing structures, a supporting structure and a hoisting structure, the inner sleeves are uniformly connected to the outer circumference of the inner sleeve in the circumferential direction of the inner sleeve; the utility model further discloses hoisting equipment. Stable assembly of the inner sleeve and the outer sleeve of the gate can be kept through the limiting fixing structure, the supporting structure can be matched with hoisting equipment externally to achieve assembly of the inner sleeve and the outer sleeve of the gate, the purpose of simplifying assembly operation of the inner sleeve and the outer sleeve of the gate is achieved, operation difficulty is effectively reduced, and working efficiency is improved; in addition, by adopting the mode to assemble the inner and outer sleeves of the gate, the hoisting times of hoisting equipment can be effectively reduced, so that the cost is effectively controlled.

Description

TECHNICAL FIELD

[0001] The utility model relates to nuclear power containment gate assembly technical field, more specifically, relate to a kind of hoisting and fixing device and hoisting equipment for nuclear power gate inner and outer sleeve. BACKGROUND

[0002] Nuclear power containment gate is an important component of nuclear power plant containment structure, mainly used to ensure the sealing of reactor containment, isolate radiation and deal with extreme accident conditions;In the design of nuclear power containment gate, inner and outer sleeve structure is the key component to ensure air tightness, radiation shielding and personnel / equipment safety, inner sleeve refers to the sleeve for installing gate, and outer sleeve refers to the sleeve embedded in shielding wall.

[0003] The current installation method of nuclear power engineering containment gate outer sleeve is to install the gate inner sleeve first, then set up a support frame on the shielding wall to install the gate outer sleeve, and then adjust the installation position of the gate outer sleeve using diagonal iron or other tools in cooperation with the support frame;This method is easy to damage the base material when knocking the diagonal iron, and the support frame needs to be modified twice (modified using the gate inner sleeve installation support) or reinstalled and set, and the gate outer sleeve needs to be hoisted again, especially when the tower crane carrying capacity of individual project cannot meet the hoisting of the gate outer sleeve, a large-scale crane needs to be used for hoisting;Therefore, the existing installation method of nuclear power engineering containment gate inner and outer sleeve has the problems of low installation efficiency, high operation difficulty, and is not conducive to cost control and time saving. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model aims to provide a kind of hoisting and fixing device and hoisting equipment for nuclear power gate inner and outer sleeve, to reach the optimization and simplification of the assembly steps of inner and outer sleeve, and reduce the hoisting frequency, to achieve the purpose of cost control and time saving.

[0005] To achieve the above-mentioned purpose, the utility model provides a kind of hoisting and fixing device for nuclear power gate inner and outer sleeve, including inner sleeve and outer sleeve;

[0006] A plurality of pairs of limiting and fixing structures are uniformly connected on the outer circumference of the inner sleeve along the circumference of the inner sleeve, and each pair of limiting and fixing structures forms a limiting groove with the outer sleeve on the side away from the inner sleeve;

[0007] Supporting structure, including base and supporting component installed on the top of the base, the side away from the base of the supporting component is adapted to support on the outer circumference of the inner sleeve;

[0008] Hoisting structure, fixedly connected on the outer circumference of the inner sleeve, for connecting with external hoisting equipment.

[0009] Further, each of the limiting fixing structures comprises a first limiting frame and a second limiting frame arranged opposite to each other, the first limiting frame is provided with a first inner stop opening on a side away from the inner sleeve, the second limiting frame is provided with a second inner stop opening on a side away from the inner sleeve, and the limiting groove is formed between the first inner stop opening and the second inner stop opening.

[0010] The first inner stop opening and the second inner stop opening are both provided with a bevel opening extending to the inner sleeve on a side bottom close to each other, and the distance between the two bevel openings gradually decreases from top to bottom in a direction perpendicular to the axis of the inner sleeve, so as to guide the outer sleeve to be limited and fixed in the limiting groove.

[0011] Further, the depth of the first inner stop opening and the second inner stop opening is equal, and is greater than the outer diameter of the flange plate of the outer sleeve.

[0012] Further, the first limiting frame and the second limiting frame are the same in structure.

[0013] Further, the supporting part comprises a first mounting frame fixedly mounted on one side of the top surface of the base and a detachable mounting frame mounted on the middle and the other side of the top surface of the base, and the first mounting frame and the detachable mounting frame are used for being supported on the outer circumference of the outer sleeve in the process of mounting the limiting groove on the outer sleeve.

[0014] Further, the hoisting structure is provided with a plurality of hoisting structures, and the plurality of hoisting structures are uniformly distributed on both sides of the top of the inner sleeve.

[0015] Further, a plurality of first connecting pieces are mounted on the flange plate of the outer sleeve, the first connecting pieces are uniformly distributed and are positionally staggered with the first limiting frame and the second limiting frame, and the outer sleeve is connected with the external wall through the first connecting pieces and a sealing structure.

[0016] Further, a second fixing ring and a pair of first fixing rings are mounted on the outer circumference of the inner sleeve, and the pair of first fixing rings are located on both sides of the limiting fixing structure, the outer circumference of the first fixing ring is provided with a plurality of uniformly distributed second connecting pieces, and the outer diameter of the first fixing ring is smaller than the inner wall radius of the outer sleeve.

[0017] Further, a pair of vertical lifting lugs are mounted on both sides of the top of the outer sleeve, and a plurality of horizontal lifting lugs are mounted on the outer circumference of the outer sleeve, and the horizontal lifting lugs are located between the pair of vertical lifting lugs.

[0018] Another object of the present application is to provide a hoisting equipment for hoisting and transporting the inner sleeve and the outer sleeve in a nuclear power gate.

[0019] Compared with the prior art, the present application has the following advantages and effects:

[0020] 1. The hoisting and fixing device for the inner and outer sleeves of nuclear power plant gates in this utility model can maintain the assembly stability of the inner and outer sleeves of the gate through the set limiting and fixing structure, and effectively improve the assembly efficiency of the inner and outer sleeves. In addition, the set support structure can cooperate with the hoisting equipment to realize the pre-assembly of the inner and outer sleeves of the gate, so as to simplify the assembly operation of the inner and outer sleeves of the gate, reduce the operation difficulty and improve the work efficiency. Furthermore, the assembly of the inner and outer sleeves of the gate in this way can also effectively reduce the number of hoisting operations, so as to effectively control costs.

[0021] 2. The hoisting and fixing device for the inner and outer sleeves of nuclear power plant gates in this utility model has a simple structural design, universal component materials, readily available materials, and recyclable materials. Furthermore, the manufacturing and installation process is simple, and the functional principle is simple and easy to control, which can further reduce material and manufacturing costs. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the main structure of the hoisting and fixing device for the inner and outer sleeves of the nuclear power plant gate in this embodiment of the present invention;

[0023] Figure 2 This is a front cross-sectional view of the limiting and fixing structure of the hoisting and fixing device for the inner and outer sleeves of the nuclear power plant gate in this embodiment of the present invention.

[0024] Figure 3 This is a side cross-sectional view of the outer sleeve of the hoisting and fixing device for the inner and outer sleeves of the nuclear power plant gate in an embodiment of this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1-Inner sleeve;

[0027] 11-First retaining ring; 12-Second retaining ring;

[0028] 2-Outerwear sleeve;

[0029] 21-Vertical lifting lug; 22-Horizontal lifting lug;

[0030] 3-Limiting and fixing structure;

[0031] 31-First limiting bracket; 311-First inner stop; 32-Second limiting bracket; 321-Second inner stop; 33-Angled opening;

[0032] 4-Supporting structure;

[0033] 41-Base; 42-Support component; 421-First mounting bracket; 422-Removable mounting bracket;

[0034] 5- Lifting structure. DETAILED DESCRIPTION

[0035] The technical solutions of the utility model will be described clearly and completely in connection with the drawings. Obviously, the described embodiments are some of the embodiments of the utility model, but not all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without making creative efforts belong to the protection scope of the utility model.

[0036] In the description of the utility model, it needs to be explained that unless there are explicit provisions and limitations, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through intermediate medium, it can be the communication inside two elements, it can be wireless connection, or wired connection. For the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0037] Please refer to Figures 1-3 The utility model embodiment provides a kind of hoisting and fixing device and hoisting equipment for nuclear power gate inner and outer sleeve, and the hoisting and fixing device for nuclear power gate inner and outer sleeve includes inner sleeve 1, outer sleeve 2, limit fixed structure 3, support structure 4 and hoisting structure 5, wherein:

[0038] Limit fixed structure 3 is connected on the outer circumference of inner sleeve 1 along the circumferential direction of inner sleeve 1, and each pair of limit fixed structure 3 forms the limit slot with containing outer sleeve 2 on the side away from inner sleeve 1;Conveniently, limit the movement of outer sleeve 2 on inner sleeve 1 using limit slot, keep the installation stability of outer sleeve 2.

[0039] Support structure 4 includes base 41 and support component 42 installed on the top of base 41, and the side of support component 42 away from base 41 is adapted to support on the outer circumference of inner sleeve 1;Support structure 4 is convenient to play the role of supporting inner sleeve 1 in the process of installing limit fixed structure 3 and outer sleeve 2.

[0040] Hoisting structure 5 is fixedly connected on the outer circumference of inner sleeve 1, to be connected with external hoisting equipment, it is convenient to realize the position adjustment of inner sleeve 1 using hoisting equipment.

[0041] Please refer to Figures 1-2As shown, each pair of limiting and fixing structure 3 comprises a first limiting frame 31 and a second limiting frame 32 arranged opposite to each other, the first limiting frame 31 is provided with a first inner stop opening 311 on the side away from the inner sleeve 1, the second limiting frame 32 is provided with a second inner stop opening 321 on the side away from the inner sleeve 1, and the first inner stop opening 311 and the second inner stop opening 321 form a limiting groove; the limiting groove is convenient for accommodating the outer sleeve 2 and limiting the movement of the outer sleeve 2.

[0042] The first inner stop opening 311 and the second inner stop opening 321 are both provided with a beveled opening 33 extending to the inner sleeve 1 on the side close to each other, and the distance between the two beveled openings 33 gradually decreases from top to bottom along the direction perpendicular to the axis of the inner sleeve 1, so as to guide the outer sleeve 2 to limit and fix in the limiting groove.

[0043] As shown in Figure 2 As shown, the depth of the first inner stop opening 311 and the second inner stop opening 321 is equal, and greater than the outer diameter of the flange of the outer sleeve 2. It is convenient to enable the limiting and fixing structure 3 to be embedded and installed between the outer sleeve 2 and the inner sleeve 1 without affecting the movement of the outer sleeve 2 on the outer side of the inner sleeve 1, so as to support the outer sleeve 2 on the inner sleeve 1, and realize the non-contact connection between the outer sleeve 2 and the inner sleeve 1.

[0044] As shown in Figures 1-2 As shown, the first limiting frame 31 and the second limiting frame 32 are the same structure, which is convenient to be arranged on both sides of the outer sleeve 2 to limit the movement of the outer sleeve 2 on the inner sleeve 1.

[0045] As shown in Figure 1 As shown, the supporting part 42 comprises a first mounting frame 421 and a detachable mounting frame 422, wherein:

[0046] The first mounting frame 421 is fixedly installed on one side of the top surface of the base 41, and the detachable mounting frame 422 is installed on the middle and the other side of the top surface of the base 41, and the detachable mounting frame 422 is used to support on the outer circumference of the outer sleeve 2 during the installation of the limiting groove of the outer sleeve 2; the first mounting frame 421 can cooperate with any one of the detachable mounting frame 422 to maintain the support of the inner sleeve 1, so as to facilitate the smooth movement of the outer sleeve 2 on the outer side of the inner sleeve 1 by removing the detachable mounting frame 422 which hinders the movement of the outer sleeve 2 during the installation of the outer sleeve 2.

[0047] Specifically, the hoisting structure 5 is provided with a plurality of hoisting structures 5, which are evenly distributed on both sides of the top of the inner sleeve 1, so as to facilitate the hoisting operation of the inner sleeve 1 by the external hoisting equipment through the hoisting structure 5.

[0048] As a preferred embodiment of the present embodiment, please refer to Figure 1As shown, the number of lifting structures 5 installed on both sides of the top of the inner sleeve 1 is two, and the two lifting structures 5 located on the same side of the top of the inner sleeve 1 are arranged in a V shape, so that the multi-lifting-point cooperation can be realized when the lifting equipment uses the lifting structure 5 for lifting operation, and the uniform stress effect is achieved to improve the lifting stability.

[0049] Please refer to Figures 1-2 As shown, a plurality of first connecting pieces are installed on the flange plate of the outer sleeve 2, which are uniformly distributed and positionally staggered with the first limiting frame 31 and the second limiting frame 32, and the outer sleeve 2 is connected with the external wall through the first connecting piece and the sealing structure; the first connecting piece facilitates the subsequent installation of the sealing structure.

[0050] Please refer to Figure 1 As shown, a second fixing ring 12 and a pair of first fixing rings 11 are installed on the outer circumference of the inner sleeve 1, and the pair of first fixing rings 11 are located on both sides of the limiting and fixing structure 3, a plurality of second connecting pieces are uniformly distributed on the outer circumference of the first fixing ring 11, and the outer diameter of the first fixing ring 11 is smaller than the inner wall radius of the outer sleeve 2; the second fixing ring 12 facilitates the increase of the contact surface with the building structure during the installation of the inner sleeve 1, so as to facilitate the improvement of the installation stability of the inner sleeve 1 and the reduction of local stress concentration and the improvement of the anti-seismic performance, and the second connecting piece on the first fixing ring 11 can cooperate with the first connecting piece to keep the installation stability of the sealing structure.

[0051] Please refer to Figures 1-3 As shown, a pair of vertical lifting lugs 21 are installed on both sides of the top of the outer sleeve 2, and a plurality of horizontal lifting lugs 22 are installed on the outer circumference of the outer sleeve 2, and the horizontal lifting lugs 22 are located between the pair of vertical lifting lugs 21; the use of the vertical lifting lug 21 for lifting can keep the axis of the outer sleeve 2 horizontal, and the use of the horizontal lifting lug 22 for lifting can make the axis of the outer sleeve 2 perpendicular to the ground.

[0052] Please refer to Figures 1-3 As shown, the lifting equipment is used to realize the movement and carrying of the inner sleeve 1 or the outer sleeve 2.

[0053] The working process of the lifting and fixing device for the inner and outer sleeves of the nuclear power gate is as follows:

[0054] When the lifting and fixing device for the inner and outer sleeves of the nuclear power gate is used, the support structure 4 needs to be fixed to a predetermined position first, then the inner sleeve 1 is moved to the support structure 4 by using the lifting equipment, so as to keep the support of the inner sleeve 1 by using the first mounting frame 421 and the detachable mounting frame 422 provided in the support structure 4, and then a plurality of first limiting frames 31 are uniformly installed on the outer circumference of the inner sleeve 1, and the first limiting frame 31 is installed at the end with larger diameter of the inner sleeve 1.

[0055] After that, the lifting equipment can be used to connect the vertical lifting lug 21 on the outer sleeve 2, so that the lifting equipment drives the outer sleeve 2 to move towards the inner sleeve 1, and when the outer sleeve 2 is close to the inner sleeve 1 and coaxial with the inner sleeve 1, the detachable mounting frame 422 on the outer side of the base 41 can be disassembled, so that the outer sleeve 2 moves towards the inner sleeve 1, thereby sleeving the outer sleeve 2 on the inner sleeve 1;

[0056] When the outer sleeve 2 is sleeved on the inner sleeve 1, the disassembled detachable mounting frame 422 needs to be installed to the original position, and another detachable mounting frame 422 is disassembled, so that the outer sleeve 2 continues to move along the axis direction of the inner sleeve 1, until the outer sleeve 2 contacts the first limiting frame 31, the first limiting frame 31 can realize the support of the outer sleeve 2, at this time, a plurality of second limiting frames 32 can be installed on the other side of the outer sleeve 2, so as to clamp the outer sleeve 2 and limit its movement under the condition of supporting the outer sleeve 2, thereby realizing the combined installation of the outer sleeve 2 and the inner sleeve 1 and keeping the installation stable; then the lifting equipment can be used to move the assembled outer sleeve 2 and the inner sleeve 1 to the preset position on the nuclear power containment, so as to achieve the purpose of reducing the lifting times, controlling the cost and saving the construction period.

[0057] Although the utility model discloses as above, the protection scope of the utility model disclosed is not limited to this only. The person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will fall within the protection scope of the utility model.

Claims

1. A lifting fixing device for inner and outer sleeves of a nuclear power gate, comprising an inner sleeve (1) and an outer sleeve (2), characterized in that: a plurality of limiting fixing structures (3) are uniformly connected on the outer circumference of the inner sleeve (1) along the circumferential direction of the inner sleeve (1), and each pair of limiting fixing structures (3) forms a limiting groove for accommodating the outer sleeve (2) on the side away from the inner sleeve (1); a supporting structure (4) comprising a base (41) and a supporting component (42) mounted on the top of the base (41), the side of the supporting component (42) away from the base (41) is adapted to be supported on the outer circumference of the inner sleeve (1); and a lifting structure (5) fixedly connected on the outer circumference of the inner sleeve (1) for connecting with external lifting equipment. Each pair of limiting fixing structures (3) comprises a first limiting frame (31) and a second limiting frame (32) arranged opposite to each other, the first limiting frame (31) is provided with a first inner stop opening (311) on the side away from the inner sleeve (1), the second limiting frame (32) is provided with a second inner stop opening (321) on the side away from the inner sleeve (1), and the limiting groove is formed between the first inner stop opening (311) and the second inner stop opening (321); the bottom of the side of the first inner stop opening (311) and the second inner stop opening (321) approaching each other is provided with a bevel (33) extending to the inner sleeve (1), and the distance between the two bevels (33) in the direction perpendicular to the axis of the inner sleeve (1) gradually decreases from top to bottom, for guiding the outer sleeve (2) to be limited and fixed in the limiting groove. The depth of the first inner stop opening (311) and the second inner stop opening (321) is equal, and greater than the outer diameter of the flange of the outer sleeve (2). The first limiting frame (31) and the second limiting frame (32) have the same structure.

2. The lifting and fixing device for the inner and outer sleeves of the nuclear power gate according to claim 1, characterized in that, The supporting component (42) comprises a first mounting frame (421) fixedly mounted on one side of the top surface of the base (41), and a detachable mounting frame (422) mounted on the middle and the other side of the top surface of the base (41), and the first mounting frame (421) and the detachable mounting frame (422) are adapted to be supported on the outer circumference of the outer sleeve (2) during the process of mounting the limiting groove on the outer sleeve (2). A plurality of lifting structures (5) are provided, and the plurality of lifting structures (5) are uniformly distributed on both sides of the top of the inner sleeve (1).

3. The lifting and fixing device for the inner and outer sleeves of the nuclear power gate according to claim 2, characterized in that, A plurality of first connecting members are uniformly distributed on the flange of the outer sleeve (2) and are positionally staggered with the first limiting frame (31) and the second limiting frame (32), and the outer sleeve (2) is connected with the external wall through the first connecting members and sealing structures.

4. The lifting and fixing device for the inner and outer sleeves of the nuclear power gate according to claim 2, characterized in that, ​ 5. The lifting and fixing device for the inner and outer sleeves of the nuclear power gate according to claim 1, characterized in that, ​ 6. The lifting and fixing device for the inner and outer sleeves of the nuclear power gate according to claim 1, characterized in that, ​ 7. The lifting and fixing device for the inner and outer sleeves of the nuclear power gate according to claim 2, characterized in that, ​ 8. The lifting and fixing device for the inner and outer sleeves of the nuclear power gate according to claim 1, characterized in that, The outer sleeve (1) is provided with a second fixing ring (12) and a pair of first fixing rings (11) on the outer circumference, and the pair of first fixing rings (11) are located on the two sides of the limiting fixing structure (3), the outer circumference of the first fixing ring (11) is provided with a plurality of uniformly distributed second connecting pieces, and the outer diameter of the first fixing ring (11) is smaller than the inner wall radius of the outer sleeve (2).

9. The lifting and fixing device for the inner and outer sleeves of the nuclear power gate according to claim 1, characterized in that, A pair of vertical lifting lugs (21) are arranged on the two sides of the top of the outer sleeve (2), a plurality of horizontal lifting lugs (22) are arranged on the outer circumference of the outer sleeve (2), and the horizontal lifting lugs (22) are located between the pair of vertical lifting lugs (21).

10. A hoisting apparatus characterized by, The hoisting and fixing device for the inner and outer sleeves of the nuclear power gate comprises the hoisting and fixing device for the inner and outer sleeves of the nuclear power gate according to any one of claims 1-9.

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