Run-out detection device for drum-shaped filter screen of nuclear power station

Abstract

The utility model discloses a nuclear power station drum-shaped filter screen runout detection device, which comprises a drum-shaped filter screen, a concrete base is arranged outside the drum-shaped filter screen, the top of the concrete base is fixedly connected with fixing frames on two sides of the drum-shaped filter screen, the tops of the fixing frames are fixedly connected with a cross beam, and the cross beam is fixedly connected with a cross beam. The outer wall of the cross beam is connected with a connecting base in a matched mode. The utility model relates to the technical field of a drum-shaped filter screen of a nuclear power station, and solves the problems that in the prior art, the distance between a laser distance measuring sensor and the drum-shaped filter screen is measured at a fixed position, so that detection data is too single, a worker cannot conveniently compare and analyze the data, misjudgment of the worker is easily caused, and the detection accuracy is high. The drum-shaped filter screen detection device solves the problems that the existing drum-shaped filter screen detection device cannot be remotely operated and controlled, detection data cannot be remotely checked, the operation state of a drum-shaped filter screen cannot be timely mastered by the workers, and great inconvenience is brought to the workers due to the fact that the workers need to collect data on site.

Description

Technical Field

[0001] The utility model relates to the technical field of drum-shaped filter screens in nuclear power plants, in particular to a drum-shaped filter screen vibration detection device for nuclear power plants. Background Art

[0002] The drum filter of a nuclear power plant is the main equipment for filtering seawater. The purpose is to remove floating plants, fish, shrimp, garbage, etc. in the water to ensure the long-term, safe and reliable operation of the nuclear power plant. During the use of the drum filter of a nuclear power plant, the drum filter may be worn or the impurities or dirt accumulated on the surface of the filter may cause the filter to be blocked or deformed, which may cause the drum filter to jump during the rotation process, which may affect the stable operation of the drum filter of the nuclear power plant. Therefore, the drum filter needs to be inspected and maintained regularly to ensure its normal operation. In the prior art, the distance between the laser ranging sensor and the drum filter is measured at a fixed position, resulting in too single detection data, which is not convenient for the staff to compare and analyze the data, and is easy to cause misjudgment by the staff. In addition, the staff needs to collect data on site, and cannot remotely control the detection device and remotely view the detection data, so that the staff cannot grasp the operation status of the drum filter in time, which brings great inconvenience to the staff. Summary of the invention

[0003] In view of the deficiencies in the prior art, the utility model provides a nuclear power plant drum filter vibration detection device, which solves the problem in the prior art that the distance between the laser ranging sensor and the drum filter is measured at a fixed position, resulting in the detection data being too single, making it inconvenient for staff to compare and analyze the data, and easily causing misjudgment by staff, and the staff need to collect data on site, and cannot remotely control the detection device and remotely view the detection data, so that the staff cannot grasp the operating status of the drum filter in time, causing great inconvenience to the staff.

[0004] To achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions: a nuclear power plant drum filter beating detection device, comprising a drum filter, a concrete base is arranged on the outside of the drum filter, the top of the concrete base is located on both sides of the drum filter and is fixedly connected with a fixing frame, the top of the fixing frame is fixedly connected with a crossbeam, the outer wall of the crossbeam is cooperatively connected with a connecting seat, the top of the crossbeam is provided with a rack, a servo motor is fixedly connected to one side of the top of the connecting seat, the output end of the servo motor is transmission-connected with a rack wheel, the rack wheel is rotatably connected to the connecting seat, the rack wheel is meshingly connected to the rack, a first laser ranging sensor is equidistantly arranged at the bottom of the connecting seat, the first laser ranging sensor is arranged corresponding to the drum filter, a controller is arranged on one side of the fixing frame, a 5G gateway is arranged on the fixing frame above the controller, and the controller is electrically connected to the servo motor, the first laser ranging sensor and the 5G gateway respectively.

[0005] Preferably, a servo stepper motor is fixedly connected to the bottom of the connecting seat, and the servo stepper motor is electrically connected to a controller. A rotating seat is rotatably connected to a side of the bottom of the connecting seat away from the servo stepper motor, and an output end of the servo stepper motor is fixedly connected to the rotating seat, and the rotating seat is fixedly connected to a first laser ranging sensor. A second laser ranging sensor is arranged on one side of the bottom of the connecting seat, and the second laser ranging sensor is electrically connected to the controller, and the second laser ranging sensor is arranged corresponding to the fixed frame.

[0006] Preferably, a fixing box is fixedly connected to one side of the fixing frame close to the drum filter, a moving seat is cooperatively connected to the inner wall of the fixing box, a third laser ranging sensor is arranged inside the moving seat, the third laser ranging sensor is electrically connected to the controller, the third laser ranging sensor is arranged corresponding to the drum filter, an adjustment slot is opened on the top of the fixing box, a fixing knob is threadedly connected to the top of the moving seat, the fixing knob passes through the adjustment slot, and is cooperatively connected to the fixing box.

[0007] Preferably, a cross bar is fixedly connected to the top of one of the fixing frames, and a camera is disposed at the end of the cross bar.

[0008] Preferably, limiting grooves are provided on both sides of the bottom of the crossbeam, and limiting blocks are provided on both sides of the inner wall of the connecting seat, and the limiting blocks are cooperatively connected with the limiting grooves.

[0009] The utility model provides a nuclear power plant drum filter beating detection device. It has the following beneficial effects: the nuclear power plant drum filter beating detection device, through the cooperation between the fixing frame, the crossbeam, the connecting seat, the first laser distance sensor, the controller, the 5G gateway, the rack, the servo motor and the rack wheel, measures the distance between the two at different positions on the top of the drum filter through the first laser distance sensor, improves the accuracy and diversity of the detection data, and uploads the detection data to the monitoring system in real time, so that the staff can view and analyze the detection data at different positions through the monitoring system, and can timely grasp the beating of the drum filter, so that the real-time monitoring of the operation status of the drum filter can be achieved. At the same time, the staff can also remotely control the detection device through the monitoring system, which can improve the accuracy of the detection device and the convenience of use.

[0010] Through the coordination among the drum filter, the connecting seat, the first laser ranging sensor, the controller, the rotating seat, the servo stepper motor and the second laser ranging sensor, during the movement of the connecting seat, the controller automatically controls the servo stepper motor to adjust the angle of the rotating seat, so that the irradiation angle of the first laser ranging sensor remains perpendicular to the drum filter, thereby improving the automation rate of the detection device and enabling the detection device to perform measurements at a vertical angle at any position on the top of the drum filter, thereby further improving the accuracy of the detection data. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the appearance of the utility model;

[0012] Figure 2 for Figure 1 Schematic diagram of the appearance of the middle connecting seat, rotating seat and servo motor;

[0013] Figure 3 for Figure 2 A schematic diagram of the structure of the middle connecting seat, the first laser ranging sensor and the servo stepping motor;

[0014] Figure 4 for Figure 1 Schematic diagram of the appearance of the fixed box, movable seat and fixed knob;

[0015] Figure 5 for Figure 1 Appearance cross-sectional view of the center beam, rack rail and limit groove.

[0016] In the figure: 1. drum filter, 2. concrete base, 3. fixed frame, 4. crossbeam, 5. connecting seat, 6. first laser ranging sensor, 7. controller, 8. 5G gateway, 9. rack, 10. servo motor, 11. rack wheel, 12. rotating seat, 13. servo stepper motor, 14. second laser ranging sensor, 15. fixed box, 16. moving seat, 17. third laser ranging sensor, 18. fixed knob, 19. crossbar, 20. camera, 21. limit slot, 22. limit block, 23. adjustment slot. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] In the prior art, a laser ranging sensor is used to measure the distance between the sensor and the drum filter at a fixed position, which results in the detection data being too single, making it inconvenient for staff to compare and analyze the data, and easily causing misjudgment by staff. In addition, staff need to collect data on-site, and are unable to remotely control the detection device and remotely view the detection data, so that staff cannot grasp the operating status of the drum filter in a timely manner, causing great inconvenience to the staff.

[0019] In view of this, the utility model provides a nuclear power plant drum filter vibration detection device, which cooperates with a fixed frame, a crossbeam, a connecting seat, a first laser ranging sensor, a controller, a 5G gateway, a rack, a servo motor and a rack wheel, and measures the distance between the two at different positions on the top of the drum filter through the first laser ranging sensor, thereby improving the accuracy and diversity of the detection data, and uploading the detection data to a monitoring system in real time, so that the staff can view and analyze the detection data at different positions through the monitoring system, and can timely grasp the vibration of the drum filter, and realize real-time monitoring of the operating status of the drum filter. At the same time, the staff can also remotely control the detection device through the monitoring system, thereby improving the convenience of using the detection device.

[0020] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and appropriate controllers and encoders should be selected according to actual conditions to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principles and processes, and no longer explains the electrical control.

[0021] Depend on Figure 1-5 It can be seen that a nuclear power plant drum filter vibration detection device comprises a drum filter 1, a concrete base 2 is arranged outside the drum filter 1, the top of the concrete base 2 is located on both sides of the drum filter 1 and is fixedly connected with a fixing frame 3, the fixing frame 3 is used to fix the vibration detection device, the top of the fixing frame 3 is fixedly connected with a crossbeam 4, the outer wall of the crossbeam 4 is matched with a connecting seat 5, the top of the crossbeam 4 is provided with a rack 9, the top side of the connecting seat 5 is fixedly connected with a servo motor 10, the output end of the servo motor 10 is transmission-connected with a rack wheel 11, the rack wheel 11 is rotatably connected to the connecting seat 5, the rack wheel 11 is meshed with the rack 9, and the bottom of the connecting seat 5 is equidistantly provided with a first laser Distance measuring sensor 6, the first laser distance measuring sensor 6 is installed at different angles at the bottom of the connecting seat 5 to monitor different positions of the same plane of the drum filter 1. The first laser distance measuring sensor 6 is arranged corresponding to the drum filter 1. A controller 7 is arranged on one side of the fixing frame 3. A 5G gateway 8 is arranged above the fixing frame 3 and located above the controller 7. The 5G gateway 8 is used for networking of the controller 7, so that the controller 7 can transmit real-time data to the monitoring system through the network. At the same time, the staff can also remotely control the controller 7 through the monitoring system to improve the convenience of using the detection device. The controller 7 is electrically connected to the servo motor 10, the first laser distance measuring sensor 6 and the 5G gateway 8 respectively;

[0022] In the specific implementation process, it is worth pointing out that the drum filter 1 and the concrete base 2 are both basic settings of the nuclear power plant filtration system. The fixing frame 3 is arranged on one side of the drum filter 1 to fix the beating detection device. Through the cooperation between the drum filter 1, the fixing frame 3, the crossbeam 4, the connecting seat 5, the first laser ranging sensor 6 and the controller 7, the distance between the two is measured by the first laser ranging sensor 6 at the top of the drum filter 1, and the measurement signal is transmitted to the controller 7 in real time. The controller 7 records the measurement data. When the drum filter 1 beats, the measurement data fluctuates. The first laser distance measuring sensor 6 is installed at different angles on the bottom of the connecting seat 5 to monitor different positions of the same plane of the drum filter 1, thereby improving the accuracy of the detection data. The connection between the connecting seat 5 and the crossbeam 4 is fixed by the cooperation among the fixing frame 3, the crossbeam 4, the connecting seat 5, the first laser distance measuring sensor 6, the controller 7, the rack 9, the servo motor 10 and the rack wheel 11, and the movement of the connecting seat 5 is realized by controlling the servo motor 10, so that the first laser distance measuring sensor 6 can perform multi-angle monitoring at different positions on the top of the drum filter 1. The 5G gateway 8 is used for networking of the controller 7, so that the controller 7 can upload real-time data to the monitoring system through the network. At the same time, the staff can also remotely control the controller 7 through the monitoring system to improve the convenience of using the detection device. Through the cooperation between the fixing frame 3, the beam 4, the connecting seat 5, the first laser ranging sensor 6, the controller 7, the 5G gateway 8, the rack 9, the servo motor 10 and the rack wheel 11, the first laser ranging sensor 6 is connected to the top of the drum filter 1. The distance between the two is measured at different positions of the parts to improve the accuracy and diversity of the detection data, and the detection data is uploaded to the monitoring system in real time, so that the staff can view and analyze the detection data of different positions through the monitoring system, and can timely grasp the beating of the drum filter, and realize real-time monitoring of the operating status of the drum filter. At the same time, the staff can also remotely control the detection device through the monitoring system to improve the convenience of using the detection device. The specific models of the first laser ranging sensor 6, the controller 7, the 5G gateway 8 and the servo motor 10 are not limited, and they can meet the use requirements;

[0023] Further, a servo stepper motor 13 is fixedly connected to the bottom of the connecting seat 5, and the servo stepper motor 13 is electrically connected to the controller 7. A rotating seat 12 is rotatably connected to the side of the bottom of the connecting seat 5 away from the servo stepper motor 13. The output end of the servo stepper motor 13 is fixedly connected to the rotating seat 12. The rotating seat 12 is fixedly connected to the first laser ranging sensor 6. A second laser ranging sensor 14 is arranged on one side of the bottom of the connecting seat 5. The second laser ranging sensor 14 is used to measure the distance between the connecting seat 5 and the fixing frame 3. The second laser ranging sensor 14 is electrically connected to the controller 7, and the second laser ranging sensor 14 is arranged corresponding to the fixing frame 3.

[0024] In the specific implementation process, it is worth pointing out that the second laser ranging sensor 14 is used to measure the distance between the connecting seat 5 and the fixing frame 3, so that the controller 7 can control the moving distance and position of the connecting seat 5. Through the cooperation between the connecting seat 5, the controller 7, the rotating seat 12, the servo stepper motor 13 and the second laser ranging sensor 14, during the movement of the connecting seat 5, the controller 7 automatically controls the servo stepper motor 13 to adjust the angle of the rotating seat 12 according to the position of the connecting seat 5. Through the cooperation between the drum filter 1, the connecting seat 5, the first laser ranging sensor 6, the controller 7, the rotating seat 12, the servo stepper motor 13 and the second laser ranging sensor 14, during the movement of the connecting seat 5, the controller 7 automatically controls the servo stepper motor 13 to adjust the angle of the rotating seat 12, so that the irradiation angle of the first laser ranging sensor 6 is kept perpendicular to the drum filter 1, thereby improving the automation rate of the detection device and ensuring the accuracy of the beating detection of the drum filter 1 at different positions. The specific models of the servo stepper motor 13 and the second laser ranging sensor 14 are not limited, and can meet the use requirements.

[0025] Further, a fixing frame 3 is fixedly connected to a side of the drum filter 1, and a moving seat 16 is cooperatively connected to the inner wall of the fixing box 15. A third laser distance sensor 17 is arranged inside the moving seat 16. The third laser distance sensor 17 is electrically connected to the controller 7. The third laser distance sensor 17 is arranged corresponding to the drum filter 1. An adjustment slot 23 is opened on the top of the fixing box 15. A fixing knob 18 is threadedly connected to the top of the moving seat 16. The fixing knob 18 passes through the adjustment slot 23 and is cooperatively connected to the fixing box 15.

[0026] In the specific implementation process, it is worth pointing out that, through the cooperation among the fixed box 15, the movable seat 16, the fixed knob 18 and the adjustment slot 23, the fixing box 15 is tightened and fixed by the fixed knob 18, so as to realize the fixation between the movable seat 16 and the fixed box 15, and through the cooperation among the drum filter 1, the fixed frame 3, the controller 7, the fixed box 15, the movable seat 16 and the third laser ranging sensor 17, the edge of the drum filter 1 is irradiated by the third laser ranging sensor 17 on the side of the drum filter 1. When the drum filter 1 shakes greatly during operation, the sensing distance of the third laser ranging sensor 17 changes, and the controller 7 receives the sensing signal of the third laser ranging sensor 17 to provide an early warning prompt for the staff. The specific model of the third laser ranging sensor 17 is not limited, and it is sufficient to meet the use requirements.

[0027] Furthermore, a crossbar 19 is fixedly connected to the top of a fixing frame 3, and a camera 20 is disposed at the end of the crossbar 19;

[0028] In the specific implementation process, it is worth pointing out that, through the cooperation between the fixing frame 3, the controller 7, the cross bar 19 and the camera 20, during the rotation of the drum filter 1, the camera 20 collects images of the drum filter 1 and transmits the image information to the controller 7 in real time. The controller 7 identifies and judges the integrity of the filter through the built-in image processing system, effectively detects the defects and damage of the filter, prevents the drum filter 1 from jumping due to defects and damage, and ensures the stable operation of the drum filter 1. The specific model of the camera 20 is not limited, and it can meet the use requirements;

[0029] Furthermore, both sides of the bottom of the crossbeam 4 are provided with limiting grooves 21, and both sides of the inner wall of the connecting seat 5 are provided with limiting blocks 22, and the limiting blocks 22 are matched and connected with the limiting grooves 21;

[0030] In the specific implementation process, it is worth pointing out that the stability of the connecting seat 5 during movement is improved through the cooperation between the crossbeam 4, the limiting groove 21, the connecting seat 5 and the limiting block 22;

[0031] Specifically, when the nuclear power plant drum filter screen jump detection device is used, the detection time and interval time of the first laser ranging sensor 6 and the third laser ranging sensor 17 are set by the controller 7. The detection time is set as a multiple of the time required for the drum filter screen 1 to rotate one circle. The staff can also control the detection device through the monitoring system at any time to collect the detection data in real time. During the rotation of the drum filter screen 1, after the set time is reached, the controller 7 automatically controls the first laser ranging sensor 6 and the third laser ranging sensor 17 to measure the distance. The first laser ranging sensor 6 is at the top of the drum filter screen 1. The third laser ranging sensor 17 measures the distance between it and the edge of the drum filter 1 on the side of the drum filter 1, and transmits the measurement signal to the controller 7 in real time. The controller 7 records the measurement data and uploads the measurement data to the monitoring system in real time through the 5G gateway 8. When the drum filter 1 jumps, the distance between the drum filter 1 and the first laser ranging sensor 6 changes, and the measurement data of the first laser ranging sensor 6 fluctuates. When the drum filter 1 swings, the measurement data of the third laser ranging sensor 17 fluctuates. When the first laser ranging sensor When the measurement data of the first laser distance measuring sensor 6 fluctuates, the controller 7 automatically controls the servo motor 10 to move the connecting seat 5 to other positions on the top of the drum filter 1, and automatically controls the servo stepper motor 13 to adjust the irradiation angle of the first laser distance measuring sensor 6 to keep the irradiation angle of the first laser distance measuring sensor 6 perpendicular to the drum filter 1, and re-collect data at other positions on the top of the drum filter 1 and upload them to the monitoring system. The staff compares and analyzes multiple sets of data to judge the beating of the drum filter 1, and then takes corresponding measures to adjust the irradiation angle of the first laser distance measuring sensor 6 to other positions on the top of the drum filter 1. The sensor 6, controller 7, 5G gateway 8, rack 9, servo motor 10 and rack wheel 11 cooperate with each other, and measure the distance between the two at different positions on the top of the drum filter 1 through the first laser ranging sensor 6, so as to improve the accuracy and diversity of the detection data, and upload the detection data to the monitoring system in real time, so that the staff can view and analyze the detection data at different positions through the monitoring system, and can timely grasp the jumping situation of the drum filter, and realize real-time monitoring of the operating status of the drum filter. At the same time, the staff can also remotely control the detection device through the monitoring system, so as to improve the convenience of using the detection device.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0033] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A nuclear power plant drum filter screen vibration detection device, comprising a drum filter screen (1), characterized in that: A concrete base (2) is arranged outside the drum filter (1); a top of the concrete base (2) is located on both sides of the drum filter (1) and is fixedly connected to a fixing frame (3); a crossbeam (4) is fixedly connected to the top of the fixing frame (3); an outer wall of the crossbeam (4) is cooperatively connected to a connecting seat (5); a rack (9) is arranged on the top of the crossbeam (4); a servo motor (10) is fixedly connected to one side of the top of the connecting seat (5); an output end of the servo motor (10) is transmission-connected to a rack wheel (11); the rack wheel ( 11) is rotatably connected to a connecting seat (5), the rack wheel (11) is meshedly connected to a rack (9), a first laser distance measuring sensor (6) is equidistantly arranged at the bottom of the connecting seat (5), the first laser distance measuring sensor (6) is arranged corresponding to the drum filter (1), a controller (7) is arranged on one side of the fixing frame (3), a 5G gateway (8) is arranged on the fixing frame (3) above the controller (7), and the controller (7) is electrically connected to the servo motor (10), the first laser distance measuring sensor (6) and the 5G gateway (8), respectively.

2. A nuclear power plant drum filter screen beating detection device according to claim 1, characterized in that: A servo stepper motor (13) is fixedly connected to the bottom of the connection seat (5), and the servo stepper motor (13) is electrically connected to a controller (7). A rotating seat (12) is rotatably connected to a side of the bottom of the connection seat (5) away from the servo stepper motor (13), and an output end of the servo stepper motor (13) is fixedly connected to the rotating seat (12). The rotating seat (12) is fixedly connected to a first laser distance measuring sensor (6). A second laser distance measuring sensor (14) is arranged on one side of the bottom of the connection seat (5), and the second laser distance measuring sensor (14) is electrically connected to the controller (7). The second laser distance measuring sensor (14) is arranged corresponding to the fixed frame (3).

3. A nuclear power plant drum filter screen beating detection device according to claim 1, characterized in that: A fixing box (15) is fixedly connected to one side of the fixing frame (3) close to the drum filter (1); the inner wall of the fixing box (15) is cooperatively connected to a moving seat (16); a third laser distance sensor (17) is arranged inside the moving seat (16); the third laser distance sensor (17) is electrically connected to the controller (7); the third laser distance sensor (17) is arranged corresponding to the drum filter (1); an adjustment slot (23) is opened on the top of the fixing box (15); a fixing knob (18) is threadedly connected to the top of the moving seat (16); the fixing knob (18) passes through the adjustment slot (23) and is cooperatively connected to the fixing box (15).

4. A nuclear power plant drum filter screen beating detection device according to claim 1, characterized in that: A crossbar (19) is fixedly connected to the top of the fixing frame (3), and a camera (20) is arranged at the end of the crossbar (19).

5. A nuclear power plant drum filter screen vibration detection device according to claim 1, characterized in that: Limiting grooves (21) are provided on both sides of the bottom of the crossbeam (4), and limiting blocks (22) are provided on both sides of the inner wall of the connecting seat (5), and the limiting blocks (22) are matched and connected with the limiting grooves (21).

Images