Hydropower station safety maintenance on-line monitoring device
By designing fixed cylinder, fixed plate, sliding plate and buffer spring structures in the hydropower station monitoring device, the problems of sensor instability and damage caused by wind and waves in the reservoir are solved, and a more stable liquid level height monitoring is achieved.
Patent Information
- Application Number
- CN202420714444.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-09
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-04-09
AI Technical Summary
When the reservoir is windy and waves are large, the sensor works unstable and it is easy to hit surrounding objects due to the wind and waves floating, resulting in damage.
A hydropower station safety maintenance online monitoring device is designed, including a fixed cylinder, a fixed plate, a sliding plate and a buffer spring. A displacement sensor is provided in the fixed cylinder, a buffer spring is provided between the sliding plate and the fixed plate, and a displacement sensor is fixed on the floating block. The motor control fixing plate slides up and down, and the central processing controller is connected to the displacement sensor circuit.
Through the setting of the fixing cylinder, fixing plate and sliding plate, the impact of water waves is slowed down and the displacement sensor is stabilized; the buffer spring reduces impact, avoids sensor damage, and improves the stability and accuracy of liquid level monitoring.
Smart Images
Figure CN222459059U_ABST
Abstract
Description
Technical Field
[0001] The utility model provides an online monitoring device for safety maintenance of a hydropower station, belonging to the technical field of monitoring of hydropower stations. Background Art
[0002] The safety maintenance monitoring of the operation status of a hydropower station is of great significance. It can facilitate the staff to conduct real-time detection of various data of the hydropower station in order to detect abnormal situations in time. The monitoring of water level height is an important monitoring content in the safety maintenance monitoring of hydropower stations. The monitoring of water level height can help hydropower station managers understand the water level changes in reservoirs or waterways, so as to reasonably arrange the water storage capacity of the reservoir, control the water flow, and ensure the normal operation and safety of the hydropower station.
[0003] When monitoring the water level, it is often necessary to set up sensors on the water surface. The sensors float on the water surface and can monitor the water level according to the changes in the water level. However, in some cases, the reservoir liquid level is unstable, especially when there are large waves. The instability of the sensors leads to unstable monitoring status. At the same time, the sensors collide with surrounding objects under the action of wind and waves, which can easily cause damage to the sensors. Utility Model Content
[0004] The technical problem to be solved by the utility model is that when the wind and waves in the reservoir are large, it is easy to cause the sensor to work unstably, and at the same time, when the sensor floats with the wind and waves, it is easy to collide with surrounding objects and cause damage to the sensor.
[0005] In order to solve the above problems, the utility model proposes the following technical solutions: an online monitoring device for the safety maintenance of a hydropower station, comprising a water reservoir; a support frame is fixedly arranged on the water reservoir, a fixed cylinder inserted into the water reservoir is fixedly arranged below the support frame, and water inlet holes are opened on the side wall and the lower part of the fixed cylinder; four corresponding fixed plates are arranged to slide up and down in the fixed cylinder, a sliding plate is arranged on one side of the fixed plate, and a buffer spring is arranged between the fixed plate and the sliding plate; a floating block is arranged between the four sliding plates, and a displacement sensor is fixedly arranged on the floating block; a motor capable of controlling the fixed plate to slide up and down is arranged above the support frame, a central processing controller connected to the motor circuit is arranged on the support frame, and the central processing controller is connected to the displacement sensor circuit.
[0006] As an improvement, the fixed plate is fixedly connected with a fixed column, and the sliding plate is slidably sleeved on the fixed column; the buffer spring is sleeved on the fixed column.
[0007] As an improvement, a limiting block is provided on one side of the sliding plate, and the limiting block is fixedly connected to the fixing column.
[0008] As an improvement, an adjustment box is fixedly arranged on the support frame, and the motor is located on the adjustment box; a screw rod rotatably arranged in the adjustment box is fixedly connected to the output shaft of the motor, and a lifting block is threadedly connected to the screw rod.
[0009] As an improvement, a lifting rod is fixedly connected below the lifting block, and the lifting rod is fixedly connected downwardly with a connecting plate and a connecting rod in sequence, and the connecting rod is fixedly connected to the fixed plate.
[0010] As an improvement, the inner wall of the regulating box is square, the lifting block is a square corresponding to the inner wall of the regulating box, and the lifting block and the inner wall of the regulating box are in contact with each other.
[0011] Beneficial effects of the utility model:
[0012] 1. Water inlet holes are provided on the side wall and the lower part of the fixed cylinder. A fixed plate is provided in the fixed cylinder for sliding up and down, and a sliding plate is provided on one side of the fixed plate. A floating block is provided between the four sliding plates, and a displacement sensor is fixedly provided on the floating block. The present application places the displacement sensor in the fixed cylinder, and at the same time, a fixed plate and a sliding plate are provided in the fixed cylinder, which can ensure that the liquid level in the fixed cylinder is consistent with the external liquid level, and due to the provision of the fixed cylinder, the fixed plate and the sliding plate, the impact of water waves can be greatly reduced, thereby ensuring the working stability of the displacement sensor and achieving a better monitoring effect on the liquid level.
[0013] 2. A buffer spring is arranged between the fixed plate and the sliding plate. When the floating block drives the displacement sensor to hit the sliding plate under the action of wind and waves, the sliding plate can slide relative to the fixed plate. Under the action of the buffer spring, the impact can be mitigated to avoid damage to the sensor. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 The utility model is a three-dimensional diagram of the working status of an online monitoring device for safety maintenance of a hydropower station.
[0015] Figure 2 It is a stereoscopic diagram from another perspective of the working status of an online monitoring device for safety maintenance of a hydropower station according to the utility model.
[0016] Figure 3 The utility model is a diagram showing the internal structure of a fixed cylinder of an online monitoring device for safety maintenance of a hydropower station.
[0017] Figure 4 This is a structural diagram between four sliding plates of an online monitoring device for safety maintenance of a hydropower station according to the utility model.
[0018] Figure 5 The utility model is an internal structure diagram of a regulating box of an online monitoring device for safety maintenance of a hydropower station.
[0019] 1. Water reservoir; 2. Support frame; 3. Central processing controller; 4. Fixed cylinder; 5. Water inlet hole; 6. Fixed plate; 7. Connecting rod; 8. Connecting plate; 9. Adjusting box; 10. Sliding plate; 11. Displacement sensor; 12. Floating block; 13. Buffer spring; 14. Fixed column; 15. Limit block; 16. Screw rod; 17. Motor; 18. Lifting block; 19. Lifting rod. DETAILED DESCRIPTION
[0020] The utility model is further described below in conjunction with the accompanying drawings.
[0021] according to Figure 1-5 As shown: The utility model provides an online monitoring device for safety maintenance of a hydropower station: it includes a water reservoir 1; a support frame 2 is fixedly arranged on the water reservoir 1, a fixed cylinder 4 inserted into the water reservoir 1 is fixedly arranged below the support frame 2, and a water inlet hole 5 is opened on the side wall and the lower part of the fixed cylinder 4; four corresponding fixed plates 6 are arranged to slide up and down in the fixed cylinder 4, a sliding plate 10 is arranged on one side of the fixed plate 6, and a buffer spring 13 is arranged between the fixed plate 6 and the sliding plate 10; a floating block 12 is arranged between the four sliding plates 10, and a displacement sensor 11 is fixedly arranged on the floating block 12; a motor 17 capable of controlling the fixed plate 6 to slide up and down is arranged above the support frame 2, a central processing controller 3 connected to the motor 17 circuit is arranged on the support frame 2, and the central processing controller 3 is connected to the displacement sensor 11 circuit.
[0022] By setting the fixed tube 4, the fixed plate 6 and the sliding plate 10, the impact of wind and waves in the water reservoir 1 can be greatly reduced, thereby ensuring the working stability of the displacement sensor 11 and making the monitoring effect of the liquid level better; at the same time, a buffer spring 13 is provided between the fixed plate 6 and the sliding plate 10, which can play a role in reducing the impact and avoiding damage to the sensor.
[0023] The fixed plate 6 is fixedly connected with a fixed column 14, and the sliding plate 10 is slidably sleeved on the fixed column 14; the buffer spring 13 is sleeved on the fixed column 14. A limit block 15 is arranged on one side of the sliding plate 10, and the limit block 15 is fixedly connected with the fixed column 14.
[0024] The provision of the fixing column 14 can ensure the connectivity between the sliding plate 10 and the fixing plate 6 , while the provision of the limiting block 15 can prevent the sliding plate 10 from being separated from the fixing plate 6 .
[0025] An adjustment box 9 is fixedly arranged on the support frame 2, and a motor 17 is located on the adjustment box 9; a screw rod 16 rotatably arranged in the adjustment box 9 is fixedly connected to the output shaft of the motor 17, and a lifting block 18 is threadedly connected to the screw rod 16. A lifting rod 19 is fixedly connected below the lifting block 18, and the lifting rod 19 is fixedly connected downwardly with a connecting plate 8 and a connecting rod 7 in sequence, and the connecting rod 7 is fixedly connected to the fixing plate 6.
[0026] The structural setting of the motor 17 and the screw rod 16 can drive the lifting rod 19 to move up and down, so that the position of the fixed plate 6 can be adjusted synchronously when the position of the displacement sensor 11 changes, to ensure that the fixed plate 6 and the sliding plate 10 can always play a buffering role for the floating block 12 and the displacement sensor 11.
[0027] The inner wall of the regulating box 9 is in a square shape, the lifting block 18 is in a square shape corresponding to the inner wall of the regulating box 9 , and the lifting block 18 and the inner wall of the regulating box 9 are in contact with each other.
[0028] The coordinated arrangement of the inner wall of the square adjustment box 9 and the lifting block 18 can limit the rotation of the lifting block 18 , thereby converting the rotation of the screw rod 16 into the movement of the lifting block 18 , and transmitting the movement to the fixed plate 6 through the lifting rod 19 .
[0029] Principle of the utility model
[0030] like Figure 1-2 This is a diagram of the normal use state of this application. When the utility model is used, the water in the water reservoir 1 can enter the fixed cylinder 4 through the water inlet hole 5, so the liquid level in the fixed cylinder 4 can be consistent with the liquid level in the water reservoir 1. When the liquid level in the water reservoir 1 changes, the floating block 12 in the fixed cylinder 4 can drive the displacement sensor 11 to move synchronously, and the change state of the displacement sensor 11 can be transmitted to the central processing controller 3 in real time. The central processing controller 3 can convert the change of the displacement sensor 11 into the change of the liquid level of the water reservoir 1, thereby realizing the online monitoring of the liquid level of the water reservoir 1 of the hydropower station.
[0031] like Figure 3-4 As shown, when the wind and waves in the reservoir 1 are large, due to the blocking effect of the fixed tube 4, the wind and waves in the fixed tube 4 are already small, and the floating block 12 is located between the four sliding plates 10, and the fixed plate 6 and the sliding plate 10 can further block the wind and waves, so the floating block 12 can float on the liquid surface more stably. If the wind and waves are too large and drive the floating block 12 to hit the sliding plate 10, the sliding plate 10 can slide a distance relative to the fixed column 14, and at the same time, the sliding plate 10 compresses the buffer spring 13, which can buffer the impact and avoid damage to the floating block 12 or the displacement sensor 11 caused by excessive impact. It should be noted that for the fixed plate 6, the sliding plate 10, and the floating block 12, appropriate sizes should be selected, and for the buffer spring 13, a spring with relatively high hardness should be selected to prevent the floating block 12 from running out of the gap between the sliding plates 10 when the wind and waves are large.
[0032] like Figure 5As shown, the central processing controller 3 can monitor the position of the displacement sensor 11 in real time, and can adjust the position of the fixed plate 6 in real time according to the monitoring result, so as to adjust the position of the buffer structure. The central control processor sends a signal to the motor 17. Driven by the lifting block 18 and the lifting rod 19, the fixed plate 6 can move up or down, thereby ensuring that the position of the fixed plate 6 can always be consistent with the position of the floating block 12, avoiding the inconsistency of the position of the fixed plate 6 and the floating block 12 due to the change of the liquid level, and the inability to perform buffer protection.
[0033] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.
Claims
1. A hydropower station safety maintenance online monitoring device, comprising a reservoir (1); characterized in that: A support frame (2) is fixedly arranged on the water reservoir (1), a fixed cylinder (4) inserted into the water reservoir (1) is fixedly arranged below the support frame (2), and a water inlet hole (5) is opened on the side wall and the lower part of the fixed cylinder (4); four corresponding fixed plates (6) are slidably arranged in the fixed cylinder (4), a sliding plate (10) is arranged on one side of the fixed plate (6), and a buffer spring (13) is arranged between the fixed plate (6) and the sliding plate (10); a floating block (12) is arranged between the four sliding plates (10), and a displacement sensor (11) is fixedly arranged on the floating block (12); a motor (17) capable of controlling the fixed plate (6) to slide up and down is arranged above the support frame (2), and a central processing controller (3) connected to the motor (17) circuit is arranged on the support frame (2), and the central processing controller (3) is connected to the displacement sensor (11) circuit.
2. A hydropower station safety maintenance online monitoring device according to claim 1, characterized in that: The fixed plate (6) is fixedly connected with a fixed column (14); the sliding plate (10) is slidably sleeved on the fixed column (14); and the buffer spring (13) is sleeved on the fixed column (14).
3. A hydropower station safety maintenance online monitoring device according to claim 2, characterized in that: A limiting block (15) is provided on one side of the sliding plate (10), and the limiting block (15) is fixedly connected to the fixing column (14).
4. The online monitoring device for safety maintenance of a hydropower station according to claim 1 is characterized by: An adjustment box (9) is fixedly arranged on the support frame (2), and the motor (17) is located on the adjustment box (9); a screw rod (16) rotatably arranged in the adjustment box (9) is fixedly connected to the output shaft of the motor (17), and a lifting block (18) is threadedly connected to the screw rod (16).
5. A hydropower station safety maintenance online monitoring device according to claim 4, characterized in that: A lifting rod (19) is fixedly connected below the lifting block (18), and the lifting rod (19) is fixedly connected downwardly with a connecting plate (8) and a connecting rod (7) in sequence, and the connecting rod (7) is fixedly connected to the fixing plate (6).
6. The on-line monitoring device for safety maintenance of a hydropower station according to claim 4, characterized in that: The inner wall of the regulating box (9) is square, the lifting block (18) is square corresponding to the inner wall of the regulating box (9), and the lifting block (18) and the inner wall of the regulating box (9) are in contact with each other.