Combined nuclear island air supply and exhaust duct sectional device

Abstract

The utility model discloses a combined nuclear island air supply and exhaust duct sectional device, concretely relates to nuclear island air supply and exhaust duct technical field, including the connecting frame, and the left and right sides of connecting frame all are embedded with the threaded seat, and the side wall of threaded seat is rotatably connected with connecting frame, and the inside of threaded seat is penetrated with the screw rod of screwing, and the end of screw rod is fixed with the clamping plate, and a plurality of notches are seted up on the clamping plate, and the upper and lower ends of clamping plate all are provided with the limit component, and the limit component is used for limiting the moving direction of clamping plate, and the outside of threaded seat is provided with the rotating mechanism, and the rotating mechanism is used for driving threaded seat to rotate, and the inside bottom surface of connecting frame is provided with the distance measuring component, and the distance measuring component is used for observing the moving distance of clamping plate. The utility model discloses by adopting adjustable design, solved the problem of traditional fixed sectional device adaptability, in actual installation process, the device can be flexibly adjusted according to the actual width of the scene ventilation pipeline, and the butt joint precision between different specifications air flue is improved.

Description

Technical Field

[0001] This utility model relates to the field of nuclear island air supply and exhaust duct technology, and more specifically, to a combined nuclear island air supply and exhaust duct segmentation device. Background Technology

[0002] The modular nuclear island supply and exhaust duct segmentation unit is a specialized component connecting duct sections in the ventilation system of a nuclear power plant. It adopts flanges, expansion joints, or quick-disassembly structures to ensure airtightness, seismic resistance, and radiation protection. Its design integrates sealing gaskets, shielding layers (such as lead liners), and flexible supports to compensate for thermal displacement and resist seismic loads. It also supports remote operation to reduce radiation exposure. Some models also have built-in fire dampers or monitoring interfaces to meet the stringent sealing, pressure resistance, and safety standards of the nuclear island (such as HEPA filtration). It is suitable for the segmented isolation and maintenance of supply, exhaust, and emergency ventilation ducts.

[0003] Existing modular nuclear island ventilation duct segmentation devices are typically fixed structures, with their dimensions and connection methods determined during the design phase. They cannot be dynamically adjusted based on changes in actual duct width or layout during use. This rigid design results in poor adaptability during installation, especially when there are deviations in the on-site duct spacing or when adjustments are needed. Customized modifications or additional transition sections are often required, increasing construction complexity and time costs. Furthermore, the fixed structure lacks flexibility when facing different duct specifications or temporary change requirements, which may affect the overall installation efficiency and sealing performance of the nuclear island ventilation system.

[0004] In summary, in order to improve the installation adaptability and usage flexibility of the modular nuclear island ventilation duct segmentation device, it is necessary to solve the problem that the existing fixed structure cannot be adjusted according to the duct width, so that it can better adapt to the installation requirements of different duct specifications, reduce the amount of on-site modification work, and improve the construction efficiency and sealing reliability of the nuclear island ventilation system. Utility Model Content

[0005] The present invention provides a modular nuclear island air supply and exhaust duct segmentation device, which aims to solve the problem that existing modular nuclear island air supply and exhaust duct segmentation devices are usually fixed structures, which cannot be adjusted according to the duct width during use, resulting in low adaptability and flexibility in installation.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a combined nuclear island air supply and exhaust duct segmentation device, comprising a connecting frame, threaded seats embedded on both the left and right sides of the connecting frame, the threaded seats being rotatably connected to the side walls of the connecting frame, a lead screw being threaded through the inside of the threaded seat, a clamping plate being fixed at the end of the lead screw, multiple slots being provided on the clamping plate, and limit components being provided at both the upper and lower ends of the clamping plate to limit the direction of movement of the clamping plate, a rotating mechanism being provided on the outside of the threaded seat to drive the threaded seat to rotate, a distance measuring component being provided on the inner bottom surface of the connecting frame to observe the movement distance of the clamping plate, and a hoisting component being provided on the top of the connecting frame.

[0007] In a preferred embodiment, the limiting component includes two guide rails fixed inside the connecting frame, sliders fixed at the upper and lower ends of the clamping plate, and guide grooves formed on the guide rails, with the sliders slidably connected to the guide grooves.

[0008] In a preferred embodiment, the rotating mechanism includes a rotating component and a docking component, the docking component being used to insert a wrench and the rotating component being used to drive the threaded seat to rotate.

[0009] In a preferred embodiment, the rotating assembly includes a toothed ring fixed to the outside of the threaded seat and a toothed post rotatably connected to the connecting frame, the toothed post meshing with the toothed ring.

[0010] In a preferred embodiment, the rotating component includes a socket formed on the toothed post, the socket being polygonal.

[0011] In a preferred embodiment, the ranging component includes a fixed plate disposed inside the connecting frame, a groove formed on the fixed plate, a slide block slidably connected inside the groove, a pointer fixed on the slide block, and a scale line disposed on the fixed plate, with the tip of the pointer pointing to the scale line.

[0012] In a preferred embodiment, the hoisting assembly includes a fixed column disposed on the top of the connecting frame and a plurality of hoisting holes formed on the fixed column, the fixed column being fixedly connected to the connecting frame.

[0013] The beneficial effects of this utility model are as follows:

[0014] This invention, through its adjustable design, effectively solves the problem of insufficient adaptability of traditional fixed segmented devices. During actual installation, the device can be flexibly adjusted according to the actual width of the ventilation ducts on site, significantly improving the docking accuracy between ducts of different specifications. This improvement not only reduces installation errors caused by dimensional deviations but also reduces on-site cutting, welding, and other modification procedures, greatly shortening the construction cycle. At the same time, the optimized adaptability ensures the airtightness and structural stability of the pipe connections, providing a reliable guarantee for the safe operation of the nuclear island ventilation system. In addition, this design enhances the device's adaptability to different engineering environments, making the installation process more efficient and convenient, and contributing to improving the overall efficiency of nuclear power plant construction and maintenance. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the lead screw of this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of the fixing plate of this utility model.

[0018] Figure 4 This is a three-dimensional structural diagram of the rotating mechanism of this utility model.

[0019] Figure 5 This is a schematic diagram of the three-dimensional structure of the clamping plate of this utility model.

[0020] The attached figures are labeled as follows: 1. Connecting frame; 2. Threaded seat; 3. Lead screw; 4. Clamping plate; 5. Groove; 61. Slider; 62. Guide rail; 63. Guide groove; 71. Gear ring; 72. Gear post; 73. Insertion hole; 81. Fixing plate; 82. Slide groove; 83. Slide block; 84. Pointer; 85. Scale line; 91. Fixing post; 92. Lifting hole. Detailed Implementation

[0021] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0022] Refer to the instruction manual appendix Figures 1 to 5A modular nuclear island ventilation duct segmentation device includes a connecting frame 1. Threaded seats 2 are embedded on both the left and right sides of the connecting frame 1. The threaded seats 2 are rotatably connected to the side walls of the connecting frame 1. A lead screw 3 is threaded through the inside of the threaded seat 2. A clamping plate 4 is fixed to the end of the lead screw 3. Multiple slots 5 are provided on the clamping plate 4. Limiting components are provided at both the upper and lower ends of the clamping plate 4 to limit the direction of movement of the clamping plate 4. A rotating mechanism is provided on the outside of the threaded seat 2 to drive the threaded seat 2 to rotate. A distance measuring component is provided on the bottom surface of the inside of the connecting frame 1 to observe the movement distance of the clamping plate 4. A hoisting component is provided on the top of the connecting frame 1.

[0023] It should be noted that the lead screw 3 is threadedly engaged with the threaded seat 2. The two ends of the clamping plate 4 are restricted by the positioning components. When the threaded seat 2 rotates, the lead screw 3 will not rotate with it, so that the lead screw 3 can drive the clamping plate 4 to move left and right, thereby adjusting the distance between the two clamping plates 4. The two pipes are sleeved inside the connecting frame 1 and then clamped and positioned by the clamping plate 4, so as to adapt to the installation requirements of ventilation pipes of different widths.

[0024] Refer to the instruction manual appendix Figure 1 and Figure 2 The limiting component includes two guide rails 62 fixed inside the connecting frame 1, sliders 61 fixed at the upper and lower ends of the clamping plate 4, and guide grooves 63 opened on the guide rails 62. The sliders 61 and guide grooves 63 are slidably connected.

[0025] It should be noted that when the clamping plate 4 moves, it causes the slider 61 to slide inside the guide groove 63 of the guide rail 62. The guide groove 63 restricts the movement direction of the slider 61, thereby improving the stability of the movement of the clamping plate 4.

[0026] Refer to the instruction manual appendix Figure 2 and Figure 4 The rotating mechanism includes a rotating component and a docking component. The docking component is used to insert the wrench, and the rotating component is used to drive the threaded seat 2 to rotate.

[0027] It should be noted that the rotating component can drive the threaded seat 2 to rotate when it rotates, thereby realizing the left and right lateral movement of the lead screw 3.

[0028] Refer to the instruction manual appendix Figure 2 The rotating assembly includes a toothed ring 71 fixed to the outside of the threaded seat 2 and a toothed post 72 rotatably connected to the connecting frame 1, with the toothed post 72 meshing with the toothed ring 71.

[0029] It should be noted that when the toothed column 72 rotates, it drives the threaded seat 2 to rotate through meshing with the toothed ring 71.

[0030] Refer to the instruction manual appendix Figure 4The rotating component includes a socket 73 formed on the toothed post 72, and the socket 73 is polygonal.

[0031] It should be noted that by setting up polygonal sockets 73, when it is necessary to rotate the gear 72, the corresponding polygonal wrench can be inserted into the sockets 73 to rotate the gear 72.

[0032] Refer to the instruction manual appendix Figure 1 and Figure 3 The ranging component includes a fixed plate 81 disposed inside the connecting frame 1, a slide groove 82 opened on the fixed plate 81, a slide block 83 slidably connected inside the slide groove 82, a pointer 84 fixed on the slide block 83, and a scale line 85 disposed on the fixed plate 81, with the tip of the pointer 84 pointing to the scale line 85.

[0033] It should be noted that by sliding the two slide blocks 83, the pointer 84 is moved to the corresponding scale, thereby ensuring that the movement distance of the two clamping plates 4 is consistent, so that the ventilation duct can be positioned at the center of the connecting frame 1.

[0034] Refer to the instruction manual appendix Figure 1 The hoisting assembly includes a fixed column 91 set on the top of the connecting frame 1 and multiple hoisting holes 92 opened on the fixed column 91. The fixed column 91 is fixedly connected to the connecting frame 1.

[0035] It should be noted that by passing the steel cable through the hoisting hole 92, the connecting frame 1 can be hoisted, thereby achieving the positioning and installation of the ventilation duct.

[0036] Working principle: First, steel cables are suspended through the lifting holes 92 on the fixed column 91 to hoist the entire connecting frame 1 to the predetermined position. During installation, the operator connects the two ventilation ducts inside the connecting frame 1. Then, a polygonal wrench is inserted into the insertion hole 73 of the toothed column 72 and rotated. The toothed column 72 drives the meshing toothed ring 71 to rotate, which in turn drives the threaded seat 2 to rotate synchronously. Since the screw 3 and the threaded seat 2 are threadedly engaged, and the sliders 61 at the upper and lower ends of the clamping plate 4 are restricted to sliding horizontally within the guide grooves 63 of the guide rail 62, the screw 3 pushes the clamping plate 4 to move laterally. The clamping plates 4 on both sides are pushed into the pipe synchronously. The pipe is clamped and positioned by the grooves 5 on the surface of the clamping plate 4 and the screws. During the adjustment process, the operator slides the slide seat 83 in the slide groove 82 to align the tip of the pointer 84 with the scale line 85 on the fixed plate 81, ensuring that the movement distance of the clamping plates 4 on both sides is consistent, thereby accurately centering and fixing the pipe, and finally completing the sealing connection of pipes of different widths.

[0037] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A modular nuclear island ventilation duct segmentation device, characterized in that: The frame includes a connecting frame (1), with threaded seats (2) embedded on both the left and right sides of the connecting frame (1). The threaded seats (2) are rotatably connected to the side wall of the connecting frame (1). A screw rod (3) is threaded through the inside of the threaded seat (2). A clamping plate (4) is fixed at the end of the screw rod (3). Multiple slots (5) are provided on the clamping plate (4). Limiting components are provided at both the upper and lower ends of the clamping plate (4). The limiting components are used to limit the movement direction of the clamping plate (4). A rotating mechanism is provided on the outside of the threaded seat (2). The rotating mechanism is used to drive the threaded seat (2) to rotate. A distance measuring component is provided on the bottom surface of the inside of the connecting frame (1). The distance measuring component is used to observe the movement distance of the clamping plate (4). A hoisting component is provided on the top of the connecting frame (1).

2. The combined nuclear island air supply and exhaust duct segmentation device according to claim 1, characterized in that: The limiting component includes two guide rails (62) fixed inside the connecting frame (1), sliders (61) fixed at the upper and lower ends of the clamping plate (4), and guide grooves (63) opened on the guide rails (62). The sliders (61) and guide grooves (63) are slidably connected.

3. The combined nuclear island ventilation duct segmentation device according to claim 1, characterized in that: The rotating mechanism includes a rotating component and a docking component. The docking component is used to insert the wrench, and the rotating component is used to drive the threaded seat (2) to rotate.

4. A combined nuclear island ventilation duct segmentation device according to claim 3, characterized in that: The rotating assembly includes a toothed ring (71) fixed to the outside of the threaded seat (2) and a toothed column (72) rotatably connected to the connecting frame (1), the toothed column (72) meshing with the toothed ring (71).

5. A combined nuclear island ventilation duct segmentation device according to claim 4, characterized in that: The rotating assembly includes a socket (73) formed on the toothed post (72), and the socket (73) is polygonal.

6. A combined nuclear island ventilation duct segmentation device according to claim 1, characterized in that: The ranging component includes a fixed plate (81) disposed inside the connecting frame (1), a groove (82) opened on the fixed plate (81), a slide block (83) slidably connected inside the groove (82), a pointer (84) fixed on the slide block (83), and a scale line (85) disposed on the fixed plate (81), with the tip of the pointer (84) pointing to the scale line (85).

7. A combined nuclear island ventilation duct segmentation device according to claim 1, characterized in that: The hoisting assembly includes a fixed column (91) set on the top of the connecting frame (1) and multiple hoisting holes (92) opened on the fixed column (91), and the fixed column (91) is fixedly connected to the connecting frame (1).

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