Nuclear island plant main steam penetration piece steel bar integration binding structure

By integrating the main frame, fixing components, and positioning mechanism into a binding structure, the problem of low efficiency in binding the steel bars of the main steam penetration component in traditional nuclear island plant buildings has been solved. This has enabled efficient and accurate steel bar positioning and adaptive binding, improving construction quality and efficiency.

CN121781722APending Publication Date: 2026-04-03SHANDONG ELECTRIC POWER CONSTR NO 2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-31
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

The traditional method of binding steel bars for the main steam penetration components in nuclear island buildings is inefficient, relies on manual operation, and lacks flexibility and adjustability. It is difficult to ensure the accurate position and spacing of the steel bars, which affects the overall quality and construction cycle.

Method used

The system adopts an integrated binding structure consisting of a frame body, fixing components, and a positioning mechanism. The frame body is arranged circumferentially along the main steam penetration, the fixing components are spaced apart and movably connected, and the positioning mechanism limits the relative position of the fixing components and the penetration. Combined with guide sleeves and limit posts, it achieves precise positioning and clamping.

Benefits of technology

It improves the efficiency and accuracy of rebar binding, adapts to main steam penetrations of different sizes and shapes, reduces labor costs and construction cycle, and enhances the stability and reliability of binding.

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Abstract

The invention relates to a nuclear island plant main steam penetration piece steel bar integration binding structure, which relates to the technical field of constructional engineering, and comprises a frame main body, at least two fixing assemblies and a positioning mechanism, the frame body is arranged in the circumferential direction of the main steam penetration piece, the fixing assemblies are arranged on the frame body at intervals and movably connected with the frame body, the positioning mechanisms are used for limiting the relative positions of the fixing assemblies and the main steam penetration piece, and the frame body limits the main steam penetration piece. The fixing assemblies limit the steel bars, the frame body is arranged in the circumferential direction of the main steam penetration piece, the fixing assemblies are arranged on the frame body at intervals and movably connected, concentrated binding of the steel bars can be achieved, and the low efficiency of a traditional one-by-one binding mode is avoided; the positioning mechanism limits the relative position of the fixing assembly and the main steam penetration piece, and the accurate position and distance of the steel bars can be guaranteed.
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Description

Technical Field

[0001] This application relates to the field of building engineering technology, and in particular to an integrated binding structure for the reinforcing steel bars of the main steam penetration component in a nuclear island plant. Background Technology

[0002] In the construction of nuclear island buildings, the main steam penetration is a crucial component of the nuclear island containment structure, playing a key role in ensuring the normal operation and safety of the steam system within the nuclear island. With the continuous development of nuclear power technology, higher demands are placed on the construction quality and efficiency of various components of the nuclear island building. The reinforcement binding of the main steam penetration is a vital part of this process, and its construction quality and speed directly affect the construction cycle and safety of the entire nuclear island building. Proper reinforcement binding enhances the structural strength and stability of the main steam penetration, ensuring its reliable operation under complex conditions.

[0003] In the traditional rebar binding operation of main steam penetration components in nuclear island plants, two typical methods are commonly used. One is manual binding, where workers use tools such as wire to fix each rebar individually on the construction site. This process requires workers to invest a lot of time and energy, repeating the operation on-site for extended periods, resulting in high labor intensity. The other method uses a simple fixing frame to fix the rebar to a certain extent. However, this frame structure is relatively simple and lacks high flexibility and adjustability. When positioning the rebar, workers usually rely on their experience and simple measuring tools, such as tape measures and plumb bobs. Workers judge the position and spacing of the rebar based on their own experience and then use measuring tools for rough calibration. Existing technologies have obvious drawbacks. The manual binding of rebars one by one is inefficient, consumes a lot of labor costs, and has a long construction period. The simple fixing frame, due to its lack of flexibility and adjustability, is difficult to adapt to main steam penetration components of different sizes and shapes. At the same time, relying on workers' experience and simple measuring tools to position the rebar makes it difficult to guarantee the accurate position and spacing of the rebar, thus affecting the overall quality of the main steam penetration component.

[0004] Therefore, in view of the above situation, there is an urgent need to develop an integrated and tied steel reinforcement structure for the main steam penetration component of the nuclear island plant, so as to overcome the shortcomings in the current practical application. Summary of the Invention

[0005] To address the deficiencies in the aforementioned technologies, this application provides an integrated binding structure for the reinforcing steel bars of the main steam penetration component in a nuclear island plant.

[0006] This application provides a steel reinforcement integrated binding structure for the main steam penetration component of a nuclear island plant, which adopts the following technical solution: A steel reinforcement integrated binding structure for the main steam penetration component of a nuclear island plant includes a frame body, at least two fixing components, and a positioning mechanism. The frame body is arranged circumferentially along the main steam penetration component. The fixing components are spaced apart on the frame body and movably connected to the frame body. The positioning mechanism is used to define the relative position of the fixing components and the main steam penetration component.

[0007] Beneficial effects: The main frame limits the main steam penetration component, and the fixing components limit the steel bars. The main frame is arranged circumferentially along the main steam penetration component, and the fixing components are spaced on the main frame and are movably connected, which can realize the centralized binding of steel bars and avoid the inefficiency of the traditional method of binding one steel bar at a time. The positioning mechanism limits the relative position of the fixing components and the main steam penetration component, which can ensure the accurate position and spacing of the steel bars.

[0008] In one alternative embodiment, the frame body includes at least two detachably connected split frames, the split frames being fixed at their ends by threaded connectors.

[0009] Beneficial effects: The main frame adopts at least two detachable and connected split frames and the ends are fixed by threaded connectors, which facilitates the transportation and assembly of the main frame, improves the flexibility and adjustability of the structure, and solves the problems of the traditional fixed frame structure being simple, lacking flexibility and adjustability.

[0010] In one optional embodiment, the positioning mechanism includes a guide sleeve and a limiting post. The guide sleeve is symmetrically fixed to the outside of the frame body. Multiple sets of limiting plates are symmetrically arranged on the outside of the frame body. The limiting post passes through the guide sleeve and the limiting plate, and the limiting post is threadedly connected to the limiting plate.

[0011] Beneficial effects: The main frame is arranged circumferentially along the main steam penetration component, and the fixing components are spaced on the main frame and movably connected to it. Combined with a positioning mechanism to limit the relative position of the fixing components and the main steam penetration component, integrated binding of reinforcing bars can be achieved, avoiding the inefficiency of traditional decentralized binding methods. Specifically, the guide sleeves of the positioning mechanism are symmetrically fixed to the outside of the main frame, multiple sets of limiting plates are symmetrically arranged on the outside of the main frame, and limiting posts pass through the guide sleeves and limiting plates and are threadedly connected to the limiting plates. This allows for more precise determination of the fixing component positions, ensuring accurate positioning and spacing of the reinforcing bars and improving the accuracy and precision of the binding operation.

[0012] In one optional embodiment, the fixing component includes a clamping sleeve and a rotating column, one end of the rotating column being rotatably disposed at the end of the limiting column away from the guide sleeve, and the other end of the rotating column being fixedly disposed with a clamping sleeve for clamping the reinforcing bar.

[0013] Beneficial effects: The frame body is arranged circumferentially along the main steam penetration component, the fixing components are spaced on the frame body and movably connected to the frame body, and the positioning mechanism limits the relative position of the fixing components and the main steam penetration component, which can realize the integrated binding of steel bars and improve binding efficiency and accuracy; the guide sleeve and limit post of the positioning mechanism can assist in positioning; one end of the rotating column of the fixing component is rotatably set on the limit post, and the clamping sleeve at the other end can rotate flexibly to adapt to steel bars in different positions, which facilitates the clamping and fixing of steel bars and further improves the flexibility and convenience of binding operations.

[0014] In one alternative embodiment, the clamping sleeve includes at least two detachably connected clamping arms, the two clamping arms being fixed at their ends by threaded connections.

[0015] Beneficial effects: The frame body is arranged circumferentially along the main steam penetration component, the fixing components are spaced on the frame body and movably connected to the frame body, and the positioning mechanism limits the relative position of the fixing components and the main steam penetration component, which can improve the overall efficiency and positioning accuracy of steel bar binding; the fixing components include a rotating column rotatably set on the limiting column and a clamping sleeve fixed on the rotating column, which facilitates the clamping of steel bars; the clamping sleeve includes at least two detachably connected clamping arms and the ends are fixed by threaded connectors, which can facilitate the installation and disassembly of the clamping sleeve, improving the flexibility and maintainability of the binding structure.

[0016] In one optional embodiment, the inner side of the clamping arm is provided with an elastic pad, and the surface of the elastic pad is provided with concave and convex anti-slip textures.

[0017] Beneficial effects: The frame body is arranged circumferentially along the main steam penetration component, the fixing components are spaced on the frame body and movably connected to it, and the positioning mechanism limits the relative position of the fixing components and the main steam penetration component, realizing integrated binding of reinforcing bars and improving binding efficiency and accuracy; the frame body is composed of at least two detachable and connected split frames, which facilitates the installation and disassembly of the frame body; the guide sleeve and limiting column of the positioning mechanism cooperate to accurately position the fixing components; the clamping sleeve and rotating column of the fixing components facilitate the clamping and angle adjustment of the reinforcing bars; the clamping sleeve is composed of at least two detachable and connected clamping arms, which facilitates adjustment and maintenance; on this basis, the inner side of the clamping arm is provided with an elastic pad and the surface is provided with concave and convex anti-slip texture, which can enhance the clamping force on the reinforcing bars, prevent the reinforcing bars from slipping during the binding process, and further improve the stability and reliability of binding.

[0018] In one optional embodiment, the connecting ends of the upper and lower split frames are provided with mutually compatible dovetail grooves and dovetail blocks, and the dovetail grooves and dovetail blocks slide in cooperation along the axial direction of the frame body.

[0019] Beneficial effects: The main frame consists of at least two detachable and connectable split frames, which facilitates installation and disassembly; the upper and lower split frames are connected by dovetail grooves and dovetail blocks that are mutually compatible and slide along the axial direction of the main frame, which can achieve rapid positioning and accurate splicing when assembling the main frame, thereby improving installation efficiency and the overall stability of the main frame.

[0020] In one optional embodiment, the system further includes support legs, a plurality of which are symmetrically arranged at the bottom of the frame body. Each support leg has a support foot at its bottom, and the support foot has an arc-shaped contact surface with the ground.

[0021] Beneficial effects: The setup of the frame body, fixing components, and positioning mechanism enables integrated binding of steel bars, improving binding efficiency and accuracy; the support legs are located at the bottom of the frame body, and the support feet are located at the bottom of the support legs, with the support feet having an arc-shaped contact surface with the ground, which enables the frame body to be more stably supported on the ground, adapting to different ground conditions and enhancing the stability of the entire integrated binding structure.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The main frame limits the main steam penetration component, and the fixing components limit the steel bars. The main frame is arranged circumferentially along the main steam penetration component, and the fixing components are spaced on the main frame and are movably connected, which can realize the centralized binding of steel bars and avoid the inefficiency of the traditional method of binding one steel bar at a time. The positioning mechanism limits the relative position of the fixing components and the main steam penetration component, which can ensure the accurate position and spacing of the steel bars. 2. One end of the rotating column of the fixing component is rotatably mounted on the limiting column, and the clamping sleeve at the other end can rotate flexibly to adapt to the steel bars in different positions, which facilitates the clamping and fixing of the steel bars and further improves the flexibility and convenience of the binding operation. 3. The guide sleeve and limiting post of the positioning mechanism work together to accurately position the fixing component; the clamping sleeve and rotating post of the fixing component facilitate clamping and angle adjustment of the reinforcing bar; the clamping sleeve consists of at least two detachably connected clamping arms for easy adjustment and maintenance; on this basis, the inner side of the clamping arm is provided with an elastic pad and the surface is provided with concave and convex anti-slip texture, which can enhance the clamping force on the reinforcing bar, prevent the reinforcing bar from slipping during the binding process, and further improve the stability and reliability of the binding. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure provided in the embodiments of this application; Figure 2 This is a side view structural diagram provided in an embodiment of this application; Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle.

[0024] Explanation of reference numerals in the attached drawings: 1. Main frame; 11. Split frame; 12. Dovetail groove; 13. Dovetail block; 2. Fixing component; 21. Clamping sleeve; 211. Clamping arm; 22. Rotating column; 23. Elastic pad; 24. Anti-slip texture; 3. Positioning mechanism; 31. Guide sleeve; 32. Limiting column; 33. Limiting plate; 4. Support leg; 5. Support foot. Detailed Implementation

[0025] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0028] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0029] The present invention provides the following embodiments: Example 1

[0030] The integrated binding structure of the main steam penetration component of the nuclear island plant provided in this application embodiment, such as... Figure 1As shown, the device includes a frame body 1, at least two fixing components 2, and a positioning mechanism 3. The frame body 1 limits the position of the main steam penetration component, and the fixing components 2 limit the position of the reinforcing bars. The frame body 1 is arranged circumferentially along the main steam penetration component. The fixing components 2 are spaced apart on the frame body 1 and movably connected to it. The positioning mechanism 3 is used to define the relative position of the fixing components 2 and the main steam penetration component. This achieves the beneficial effect of efficiently and accurately binding the reinforcing bars and adapting to main steam penetration components of different sizes and shapes. This is because the frame body 1 provides an overall support structure, the fixing components 2 can flexibly fix the reinforcing bars, and the positioning mechanism 3 ensures the accuracy of the positions of the fixing components 2 and the reinforcing bars.

[0031] like Figure 2 As shown, specifically, the main frame 1 includes at least two detachably connected split frame sections 11, which are fixed at their ends by threaded connectors. The split frame sections 11 can be rectangular frames made of metal, with a robust and durable construction. The threaded connectors can be bolts and nuts; the bolts pass through pre-drilled holes at the ends of the split frame sections 11, and are then tightened with nuts. Alternatively, a snap-fit ​​connection can also be used to achieve the detachable connection of the split frame sections 11; the snap-fit ​​can be designed to be flexible for easy installation and removal.

[0032] The connecting ends of the upper and lower split frames 11 are provided with mutually adaptable dovetail grooves 12 and dovetail blocks 13, which slide in a axial fit along the frame body 1. The dovetail groove 12 can be a trapezoidal groove machined at the end of the split frame 11, and the dovetail block 13 is a trapezoidal block with a matching shape. This structure allows the split frame 11 to be initially positioned during installation through the sliding fit of the dovetail groove 12 and the dovetail block 13, making installation more convenient and accurate. An alternative feature is that a T-groove and T-block fit can be used, which can also achieve an axial sliding fit.

[0033] The bottom of the main frame 1 is also equipped with support feet 5, with an arc-shaped contact surface between the support feet 5 and the ground. The support feet 5 can be made of rubber, providing elasticity and anti-slip properties. The arc-shaped contact surface enhances stability and reduces swaying of the main frame 1 on the ground. Alternatively, the contact surface of the support feet 5 can be designed as spherical, also providing stable support. The structural combination logic of the main frame 1 is as follows: the detachable connection of the split frame 11 facilitates transportation and installation; the cooperation of the dovetail groove 12 and dovetail block 13 ensures the accuracy of the connection of the split frame 11; and the support feet 5 enhance the stability of the main frame 1. This combination allows the main frame 1 to adapt to different construction environments and the dimensions of the main steam penetration component.

[0034] Specifically, the positioning mechanism 3 includes a guide sleeve 31 and a limiting post 32. The guide sleeve 31 is symmetrically fixed to the outside of the frame body 1. Multiple sets of limiting plates 33 are symmetrically arranged on the outside of the frame body 1. The limiting post 32 passes through the guide sleeve 31 and the limiting plates 33, and is threadedly connected to the limiting plates 33. The guide sleeve 31 can be a cylindrical structure made of metal, fixed to the outside of the frame body 1 by welding. The limiting post 32 can be a threaded rod. The limiting plate 33 is a metal plate with threaded holes, fixed to the outside of the frame body 1. The limiting post 32 passes through the threaded holes of the guide sleeve 31 and the limiting plate 33; rotating the limiting post 32 can adjust its position on the frame body 1. An alternative feature is that the guide sleeve 31 can be made of plastic, and the limiting post 32 can also be made of a plastic tube with external threads.

[0035] The structural combination logic of the positioning mechanism 3 is that the guide sleeve 31 provides a guiding function for the limiting post 32, ensuring that the moving direction of the limiting post 32 is accurate; the threaded connection between the limiting post 32 and the limiting plate 33 can realize the precise adjustment of the position of the limiting post 32, thereby accurately limiting the relative position of the fixing component 2 and the main steam penetrating component.

[0036] Specifically, the fixing component 2 includes a clamping sleeve 21 and a rotating column 22. One end of the rotating column 22 is rotatably disposed at the end of the limiting column 32 away from the guide sleeve 31, and the other end of the rotating column 22 is fixedly disposed with the clamping sleeve 21 for clamping the reinforcing bar. The rotating column 22 can be a metal rod, one end of which is rotatably connected to the limiting column 32 via a bearing, so that the rotating column 22 can rotate freely around the limiting column 32. The clamping sleeve 21 is used to fix the reinforcing bar, and it can be a ring structure made of metal.

[0037] The clamping sleeve 21 includes at least two detachably connected clamping arms 211, which are fixed at their ends by threaded connectors. The clamping arms 211 can be curved metal plates, and the threaded connectors can be bolts and nuts. This design allows the clamping sleeve 21 to be adjusted according to the size of the reinforcing bar, facilitating the installation and removal of the reinforcing bar. An alternative feature is that the clamping arms 211 can also be detachably connected using a snap-fit ​​connection.

[0038] like Figure 2 , Figure 3 As shown, the inner side of the clamping arm 211 is provided with an elastic pad 23, and the surface of the elastic pad 23 is provided with concave-convex anti-slip texture 24. The elastic pad 23 can be made of rubber, which can increase the friction between the clamping sleeve 21 and the rebar and prevent the rebar from slipping. The concave-convex anti-slip texture 24 further enhances the anti-slip effect. An alternative feature is that the elastic pad 23 can also be made of silicone.

[0039] The combination logic of the fixing component 2 is that the rotation function of the rotating column 22 allows the clamping sleeve 21 to be flexibly adjusted in position, making it convenient to clamp the steel bars in different positions; the detachable structure of the clamping sleeve 21 and the setting of the elastic pad 23 enable the fixing component 2 to adapt to steel bars of different sizes and ensure a firm clamping of the steel bars.

[0040] The implementation principle of this embodiment is as follows: The integrated binding structure for the main steam penetration component of the nuclear island plant, through the detachable design of the frame body 1 and the setting of the support feet 5, facilitates transportation, installation, and stable support; the positioning mechanism 3 can precisely adjust the position of the fixing component 2 to ensure the accuracy of the steel bar position; the fixing component 2 can flexibly clamp and fix steel bars of different sizes. The overall structure improves the efficiency and quality of steel bar binding, adapts to main steam penetration components of different sizes and shapes, and reduces labor costs and construction cycle compared with traditional binding methods, making a significant improvement and contribution to existing technology.

[0041] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this application.

Claims

1. A steel reinforcement integrated binding structure for the main steam penetration component of a nuclear island plant, characterized in that: It includes a frame body (1), at least two fixing components (2) and a positioning mechanism (3); the frame body (1) is arranged circumferentially along the main steam penetrating component, the fixing components (2) are spaced apart on the frame body (1) and movably connected to the frame body (1), and the positioning mechanism (3) is used to limit the relative position of the fixing components (2) and the main steam penetrating component.

2. The integrated binding structure for the main steam penetration member of a nuclear island plant as described in claim 1, characterized in that: The main frame (1) includes at least two detachable and connectable split frames (11), and the split frames (11) are fixed at the ends by threaded connectors.

3. The integrated binding structure for the main steam penetration component of a nuclear island plant as described in claim 1, characterized in that: The positioning mechanism (3) includes a guide sleeve (31) and a limiting post (32). The guide sleeve (31) is symmetrically fixed to the outside of the frame body (1). Multiple sets of limiting plates (33) are symmetrically arranged on the outside of the frame body (1). The limiting post (32) passes through the guide sleeve (31) and the limiting plate (33). The limiting post (32) is threadedly connected to the limiting plate (33).

4. The integrated binding structure for the main steam penetration member of a nuclear island plant as described in claim 3, characterized in that: The fixing component (2) includes a clamping sleeve (21) and a rotating column (22). One end of the rotating column (22) is rotatably disposed at the end of the limiting column (32) away from the guide sleeve (31), and the other end of the rotating column (22) is fixedly disposed with a clamping sleeve (21) for clamping the reinforcing bar.

5. The integrated binding structure for the main steam penetration member of a nuclear island plant as described in claim 4, characterized in that: The clamping sleeve (21) includes at least two detachably connected clamping arms (211), and the two clamping arms (211) are fixed at the ends by threaded connectors.

6. The integrated binding structure for the main steam penetration member of a nuclear island plant as described in claim 5, characterized in that: The inner side of the clamping arm (211) is provided with an elastic pad (23), and the surface of the elastic pad (23) is provided with a textured anti-slip pattern (24).

7. The integrated binding structure for the main steam penetration member of a nuclear island plant as described in claim 2, characterized in that: The upper and lower split frames (11) are provided with dovetail grooves (12) and dovetail blocks (13) that are adapted to each other. The dovetail grooves (12) and dovetail blocks (13) slide together along the axial direction of the frame body (1).

8. The integrated binding structure for the main steam penetration member of a nuclear island plant as described in claim 1, characterized in that: It also includes support legs (4), a plurality of support legs (4) are symmetrically arranged at the bottom of the frame body (1), and the bottom of the support legs (4) is provided with support feet (5), and the support feet (5) have an arc-shaped contact surface with the ground.