Reactor pressure vessel connecting pipe detection device
By using an intermittent rotation mechanism and a buffer movement mechanism, the problem of low efficiency in reactor pressure vessel connection inspection was solved, enabling multi-angle inspection and improved stability.
Patent Information
- Application Number
- CN202423258579.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-12-27
AI Technical Summary
In existing technologies, reactor pressure vessel nozzle inspection requires rotating the detector multiple times, resulting in low overall efficiency.
An intermittent rotation mechanism, including an incomplete gear and a rotating bevel gear, is used to drive the detector to rotate intermittently via a drive motor. Combined with a buffer movement mechanism, this enables multi-angle detection by the detector.
It improves the efficiency of reactor pressure vessel nozzle detection and enhances the stability and accuracy of the detector in extreme environments.
Smart Images
Figure CN223743286U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to reactor pressure vessel technical field especially relates to a reactor pressure vessel connecting pipe detection device. BACKGROUND
[0002] The reactor pressure vessel is an important component of the nuclear reactor, and its main function is to contain nuclear fuel and reactor coolant, and to maintain the safety and stability of the nuclear fission chain reaction under high temperature and high pressure conditions. Specifically, the reactor pressure vessel is usually made of thick steel and is designed to withstand extreme internal pressure and temperature. The reactor pressure vessel connecting pipe detection device is a key technical equipment for monitoring various physical parameters and conditions inside the nuclear reactor pressure vessel. Advanced sensor technology, such as high-precision pressure sensors, temperature sensors, and radiation sensors, can accurately measure various parameters inside the reactor pressure vessel. These sensors often need to work in extreme environmental conditions, such as high temperature, high pressure, and radiation environment, so their tolerance and accuracy are crucial. The reactor pressure vessel connecting pipe is very important and needs to be strictly checked.
[0003] When detecting the reactor pressure vessel connecting pipe, the detector needs to be placed in the reactor pressure vessel, and the detector needs to be rotated multiple times to detect the reactor pressure vessel connecting pipe, which reduces the overall use efficiency. UTILITY MODEL CONTENTS
[0004] The utility model embodiment aims to provide a reactor pressure vessel connecting pipe detection device, which aims to solve the problem of placing the detector in the reactor pressure vessel when detecting the reactor pressure vessel connecting pipe, rotating the detector multiple times to detect the reactor pressure vessel connecting pipe, and reducing the overall use efficiency.
[0005] The utility model embodiment is implemented as follows: a reactor pressure vessel connecting pipe detection device, comprising a support rod and a detector located below the support rod, further comprising:
[0006] The intermittent rotation mechanism is used to drive the detector to detect the container connecting pipe intermittently; the intermittent rotation mechanism comprises an incomplete gear and a rotating bevel gear; the incomplete gear and the rotating bevel gear are partially engaged; the incomplete gear is installed on the end of the drive motor output end; the detector is fixedly connected to one side of the rotating bevel gear; the lower part of the support rod is provided with a fixed disc through a moving assembly; the moving assembly is used to drive the fixed disc to move inside the container connecting pipe; the fixed disc and the drive motor are fixedly connected; the rotating bevel gear is rotatably connected above the fixed disc.
[0007] Preferably, it further comprises:
[0008] A buffer moving mechanism for slowing down the speed of movement of the fixed disc within the container nozzle.
[0009] Preferably, the buffer moving mechanism comprises a deceleration spring, one side of the deceleration spring is fixedly connected with a sliding plate, the side of the deceleration spring away from the sliding plate is fixedly connected with a supporting block, the supporting block is fixedly connected on one side of the fixed disc, the sliding plate is slidingly connected in the inside of the supporting block, the side of the sliding plate away from the deceleration spring is fixedly connected with a connecting rod, and the side of the connecting rod away from the sliding plate is fixedly connected with a wear-reducing sliding block.
[0010] Preferably, the moving assembly comprises a detection sliding rod, the detection sliding rod and the fixed disc are fixedly connected, the rotating bevel gear is rotatably connected on the outer side wall of the detection sliding rod, one side of the top of the supporting rod is fixedly connected with a fixed block, the side of the supporting rod away from the fixed block is slidingly connected with a sliding block, and the threaded rod penetrates through the sliding block and threadedly connects the sliding block and the fixed block.
[0011] Preferably, one side of the supporting rod is fixedly connected with a bottom supporting plate, and a fixed groove is formed in the top of the bottom supporting plate.
[0012] The reactor pressure vessel nozzle detection device provided by the embodiment of the utility model can drive the incomplete gear to rotate through the use of the driving motor, and the rotating bevel gear is also driven to rotate by the incomplete gear, so that the detector can perform multi-angle detection on the reactor pressure vessel nozzle, and the overall use efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 The utility model provides a kind of reactor pressure vessel nozzle detection device for the stereogram of the utility model embodiment;
[0014] Figure 2 For Figure 1 Local enlarged view in A of middle;
[0015] Figure 3 For Figure 1 Local enlarged view in B of middle.
[0016] In the drawings: 1, supporting rod;2, bottom supporting plate;3, fixed groove;4, detection sliding rod;5, sliding block;6, threaded rod;7, detector;8, fixed block;9, fixed disc;10, driving motor;11, deceleration spring;12, sliding plate;13, wear-reducing sliding block;14, connecting rod;15, supporting block;16, incomplete gear;17, rotating bevel gear. DETAILED DESCRIPTION
[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0018] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.
[0019] like Figure 1 The figure shown is a perspective structural diagram of a reactor pressure vessel nozzle detection device according to an embodiment of the present invention, including a support rod 1 and a detector 7 located below the support rod 1, and further including:
[0020] An intermittent rotation mechanism is used to drive the detector 7 to intermittently detect the container connector. The intermittent rotation mechanism includes an incomplete gear 16 and a rotating bevel gear 17. The incomplete gear 16 and the rotating bevel gear 17 are partially meshed. The incomplete gear 16 is mounted on the end of the output of the drive motor 10. The detector 7 is fixedly connected to one side of the rotating bevel gear 17. A fixed disk 9 is provided below the support rod 1 via a moving component. The moving component is used to drive the fixed disk 9 to move inside the container connector. The fixed disk 9 is fixedly connected to the drive motor 10. The rotating bevel gear 17 is rotatably connected above the fixed disk 9.
[0021] In one example of this utility model, a drive motor 10 is used, which can drive the incomplete gear 16 to rotate. While the incomplete gear 16 is rotating, it will also drive the rotating bevel gear 17 to rotate intermittently. This intermittent rotation of the rotating bevel gear 17 will enable the detector 7 to perform multi-angle detection, thereby improving the overall efficiency.
[0022] like Figure 3 As shown, in a preferred embodiment of this utility model, it further includes:
[0023] A buffer movement mechanism is used to slow down the movement of the fixed disc 9 within the container nozzle.
[0024] Specifically, the buffer movement mechanism allows the entire unit to move slowly, enabling the detector 7 to reach the appropriate position for detection.
[0025] like Figure 3As shown in the utility model, as a preferred embodiment of the utility model, the buffer moving mechanism comprises a deceleration spring 11; one side of the deceleration spring 11 is fixedly connected with a sliding plate 12; the side, away from the sliding plate 12, of the deceleration spring 11 is fixedly connected with a supporting block 15; the supporting block 15 is fixedly connected on one side of the fixed disc 9; the sliding plate 12 is slidingly connected inside the supporting block 15; the side, away from the deceleration spring 11, of the sliding plate 12 is fixedly connected with a connecting rod 14; the side, away from the sliding plate 12, of the connecting rod 14 is fixedly connected with a wear-reducing sliding block 13.
[0026] Specifically, the number of the wear-reducing sliding blocks 13, the connecting rods 14 and the supporting blocks 15 is at least four groups; when the wear-reducing sliding block 13 is subjected to a force, the wear-reducing sliding block 13 will drive the sliding plate 12 to move; at this time, the deceleration spring 11 generates a force due to compression; the sliding plate 12 will be subjected to the force generated by the deceleration spring 11 due to previous compression, so that the sliding plate 12 gives the wear-reducing sliding block 13 a force, so that the whole can slowly move, so that the fixed disc 9 can reach the appropriate position, and the detector 7 can reach the appropriate position for multi-angle detection.
[0027] As shown in the utility model, Figure 2 and Figure 3 As a preferred embodiment of the utility model, the moving assembly comprises a detection sliding rod 4; the detection sliding rod 4 and the fixed disc 9 are fixedly connected; a rotating bevel gear 17 is rotatably connected on the outer side wall of the detection sliding rod 4; one side of the top of the supporting rod 1 is fixedly connected with a fixed block 8; the side, away from the fixed block 8, of the supporting rod 1 is slidingly connected with a sliding block 5; a threaded rod 6 penetrates through the sliding block 5 and is threadedly connected with the sliding block 5 and the fixed block 8.
[0028] Specifically, the number of the threaded rods 6 is two groups; the threaded rod 6 is rotated, so that the sliding block 5 can move, so that the threaded rod 6 releases the fixation on the detection sliding rod 4, the detection sliding rod 4 is moved, so that the detection sliding rod 4 can drive the fixed disc 9 to reach the appropriate position, so that it can better detect the reactor pressure vessel nozzle.
[0029] As shown in the utility model, Figure 1 and Figure 2 As a preferred embodiment of the utility model, one side of the supporting rod 1 is fixedly connected with a bottom supporting plate 2; the top of the bottom supporting plate 2 is provided with a fixed groove 3.
[0030] Specifically, the fixed groove 3 can better support the reactor pressure vessel, so that it becomes more stable.
[0031] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A reactor vessel nozzle inspection device comprising a support pole (1) and an inspection head (7) located below the support pole (1), characterized in that, Also include: Intermittent rotation mechanism for driving the detector (7) intermittent detection of container connector; The intermittent rotation mechanism includes an incomplete gear (16) and a rotating bevel gear (17); The incomplete gear (16) and the rotating bevel gear (17) are partially engaged, the incomplete gear (16) is installed on the end of the output end of the driving motor (10); The detector (7) is fixedly connected to one side of the rotating bevel gear (17); The lower part of the support rod (1) is provided with a fixed disc (9) through a moving assembly, the moving assembly is used for driving the fixed disc (9) to move in the container connector; The fixed disc (9) and the driving motor (10) are fixedly connected; The rotating bevel gear (17) is rotatably connected above the fixed disc (9).
2. The reactor vessel nozzle inspection apparatus of claim 1, wherein, Also include: Buffering movement mechanism for slowing down the speed of the fixed disc (9) in the container connector.
3. The reactor vessel nozzle inspection apparatus of claim 2, wherein, The buffering movement mechanism includes a deceleration spring (11); One side of the deceleration spring (11) is fixedly connected with a sliding plate (12), the side of the deceleration spring (11) away from the sliding plate (12) is fixedly connected with a support block (15); The support block (15) is fixedly connected to one side of the fixed disc (9); The sliding plate (12) is slidingly connected in the support block (15); The side of the sliding plate (12) away from the deceleration spring (11) is fixedly connected with a connecting rod (14); The side of the connecting rod (14) away from the sliding plate (12) is fixedly connected with a wear sliding block (13).
4. The reactor vessel nozzle inspection apparatus of claim 1, wherein, The moving assembly includes a detection sliding rod (4); The detection sliding rod (4) and the fixed disc (9) are fixedly connected; The rotating bevel gear (17) is rotatably connected to the outer side wall of the detection sliding rod (4); One side of the top of the support rod (1) is fixedly connected with a fixed block (8); The side of the support rod (1) away from the fixed block (8) is slidingly connected with a sliding block (5); The threaded rod (6) passes through the sliding block (5) and threadedly connects the sliding block (5) and the fixed block (8).
5. The reactor vessel nozzle inspection apparatus of claim 4, wherein, One side of the support rod (1) is fixedly connected with a bottom support plate (2); The top of the bottom support plate (2) is provided with a fixed groove (3). One side of the support rod (1) is fixedly connected with a bottom support plate (2); The top of the bottom support plate (2) is provided with a fixed groove (3).