Hydropower station water level monitoring device

Abstract

The utility model relates to the technical field of water level monitoring, in particular to a hydropower station water level monitoring device which comprises an installation frame, an indicator cylinder is welded to the left end of the installation frame, a floating body is arranged on the surface of the indicator cylinder in a sliding and sleeved mode, and a distance sensor is fixedly installed on the left side of the bottom of the installation frame. A driving mechanism is installed on the surface of the indicator cylinder, and a cleaning mechanism is installed on the surface of the driving mechanism. According to the cleaning device, a lead screw rotates by controlling operation of a motor, then a movable plate, a round pipe and a cleaning mechanism are driven to move, the lead screw rotates under the action of a limiting bolt to drive the lead screw, the round pipe and a first gear to rotate, the first gear rotates to drive a second gear to rotate, then a gear ring and a cylinder are driven to rotate, and a square rod and a cleaning brush rotate; and under the action of rotation and movement of the cleaning brush, the surface of the indicator cylinder can be cleaned, and algae are effectively prevented from adhering, growing and breeding on the indicator cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of water level monitoring, in particular to a water level monitoring device for a hydropower station. Background Art

[0002] A hydropower station is a comprehensive engineering facility that converts water energy into electrical energy. It generally includes a reservoir formed by water retaining and discharge structures, a water diversion system for the hydropower station, a power plant, electromechanical equipment, etc. The high water level in the reservoir flows into the plant through the water diversion system to drive the turbine generator set to generate electricity, which is then input into the power grid through step-up transformers, switch stations and transmission lines. The water level of the hydropower station is an important factor affecting its power generation, and also determines the water volume of the downstream river, which in turn affects agriculture.

[0003] After searching, the announcement number is CN207248288U, and the name is a water level monitoring device for the pressure forepool of a run-of-river hydropower station, including a pressure forepool, a scale vertically arranged at the bottom of the pressure forepool, a camera device and a display device. Through research and analysis, it is found that although the camera device has the advantage of obtaining the image of the interface between the scale and the water level to obtain the corresponding water surface scale of the scale, there are still the following disadvantages to a certain extent.

[0004] For example, the image of the interface between the ruler and the water level is obtained through a camera device to obtain the water surface scale corresponding to the ruler to monitor the water level. However, algae are prone to adhere to the surface of the ruler over a long period of time, and they grow and reproduce on the surface, obscuring the scale and value of the ruler, reducing the effect of water level monitoring. In order to solve the above technical problems, we have designed a water level monitoring device for a hydropower station. Utility Model Content

[0005] The utility model aims to provide a water level monitoring device for a hydropower station, which has the advantages of water level monitoring and cleaning, and solves the problem that when an image of the interface between a scale and a water level is obtained by a camera device, algae are easily attached to the surface of the scale for a long time, and algae grow and reproduce on the surface to block the scale graduations and values, thereby reducing the water level monitoring effect.

[0006] To achieve the above object, the utility model provides the following technical solutions: a water level monitoring device for a hydropower station, comprising a mounting frame, an indicating mark barrel is welded on the left end of the mounting frame, a floating body is slidingly sleeved on the surface of the indicating mark barrel, a distance sensor is fixedly installed on the left side of the bottom of the mounting frame, a driving mechanism is installed on the surface of the indicating mark barrel, and a cleaning mechanism is installed on the surface of the driving mechanism;

[0007] The driving mechanism includes a motor, a screw, a movable plate, a round tube, a limit bolt, a gear 1, a short rod, a gear 2 and a gear ring; the cleaning mechanism includes a cylinder, a square rod, a cleaning brush and a spring; the inner wall of the cylinder is rotatably sleeved on the surfaces at both ends of the movable plate through bearings.

[0008] Preferably, one side of the motor is fixedly connected to the top of the indicator barrel by a bolt, the rotating shaft of the motor passes through the indicator barrel and is fixedly connected to the upper end of the screw rod, the movable plate is threadedly sleeved with the surface of the screw rod, the bottom end of the round tube is rotatably connected to the top of the movable plate through a bearing, the front end of the limit bolt passes through and is fixedly embedded in the front side of the round tube, the gear is fixedly sleeved on the surface of the round tube, the surface of the screw rod is provided with a limit groove matched with the limit bolt, and the rear end of the limit bolt extends to the inner cavity of the limit groove.

[0009] Preferably, the lower end of the short rod is rotatably embedded in the rear side of the top of the movable plate through a bearing, the gear 2 is fixedly sleeved on the surface of the upper end of the short rod, the surface of the gear ring is fixedly connected to the top of the inner wall of the cylinder, and the gear 2 is respectively meshed with the gear 1 and the gear ring.

[0010] Preferably, one end of the square rod slides through the surface of the cylinder, the other end of the square rod is fixedly connected to one side of the cleaning brush, the spring is movably sleeved on the surface of the square rod close to one end of the cleaning brush, and the two ends of the spring are respectively fixedly connected to the cleaning brush and the surface of the cylinder.

[0011] Preferably, a camera is fixedly connected to the surface of the mounting frame via a bracket, a support column is fixedly connected to the bottom of the inner cavity of the indicator tube, and the lower end of the screw rod is rotatably connected to the top of the support column via a bearing.

[0012] Preferably, a fixing bolt is movably provided through the bottom of the right side of the indicator barrel, and the left end of the fixing bolt passes through the left side of the indicator barrel and is threadedly sleeved with a fixing nut.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model installs the device on the dam wall of the hydropower station, and the floating body is floated under the action of water buoyancy. At the same time, the distance sensor monitors the distance between it and the floating body. When the distance between the floating bodies is monitored to be within the set value range, it means that the water level is high, and the feedback is fed back to the control room to control the hydropower station to open the gate to release water for power generation. The captured images can also be transmitted to the control room in real time through the camera, thereby having the advantage of convenient real-time monitoring of the water level of the hydropower station without the need for manual inspection and control.

[0015] 2. The utility model controls the operation of the motor to rotate the screw rod, thereby driving the moving plate, the round tube and the cleaning mechanism to move. Under the action of the limit bolt, the rotation of the screw rod drives the round tube and the gear one to rotate. The rotation of the gear one drives the rotation of the gear two, thereby driving the gear ring and the cylinder to rotate the square rod and the cleaning brush. Under the action of the rotation and movement of the cleaning brush, the utility model has the advantage of being able to clean the surface of the indicator barrel, effectively preventing algae from attaching, growing and multiplying on the indicator barrel, and shielding the scales and numbers on it, making it convenient for personnel to observe the water level. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a partially cutaway stereoscopic schematic diagram of the utility model;

[0018] Figure 3 For this utility model Figure 2 A is an enlarged schematic diagram;

[0019] Figure 4 It is a bottom-up stereoscopic schematic diagram of the movable plate of the utility model.

[0020] In the figure: 1. mounting bracket; 2. indicator tube; 3. float; 4. distance sensor; 5. driving mechanism; 51. motor; 52. screw; 53. moving plate; 54. round tube; 55. limit bolt; 56. gear one; 57. short rod; 58. gear two; 59. gear ring; 6. cleaning mechanism; 61. cylinder; 62. square rod; 63. cleaning brush; 64. spring; 7. camera. DETAILED DESCRIPTION

[0021] See also Figure 1-Figure 4 A water level monitoring device for a hydropower station comprises a mounting frame 1, an indicating mark barrel 2 is welded on the left end of the mounting frame 1, a floating body 3 is slidingly sleeved on the surface of the indicating mark barrel 2, a distance sensor 4 is fixedly installed on the left side of the bottom of the mounting frame 1, a driving mechanism 5 is installed on the surface of the indicating mark barrel 2, and a cleaning mechanism 6 is installed on the surface of the driving mechanism 5;

[0022] The driving mechanism 5 includes a motor 51, a screw rod 52, a movable plate 53, a round tube 54, a limit bolt 55, a gear 1 56, a short rod 57, a gear 2 58 and a gear ring 59. The cleaning mechanism 6 includes a cylinder 61, a square rod 62, a cleaning brush 63 and a spring 64. The inner wall of the cylinder 61 is rotatably sleeved on the surfaces at both ends of the movable plate 53 through bearings.

[0023] See also Figure 1 , Figure 2 and Figure 3The top of the indicator tube 2 is fixedly connected to the motor 51 by a bolt, and the rotating shaft of the motor 51 passes through the indicator tube 2 and is fixedly connected to the upper end of the screw rod 52. The movable plate 53 is threadedly sleeved with the surface of the screw rod 52. By setting the movable plate 53, the movable plate 53 is driven to move under the action of the rotation of the screw rod 52. The bottom end of the round tube 54 is rotatably connected to the top of the movable plate 53 through a bearing. The front end of the limit bolt 55 passes through and is fixedly embedded in the front face of the round tube 54. The gear 1 56 is fixedly sleeved on the surface of the round tube 54. By setting the gear 1 56, the round tube 54 is rotated to drive the gear 2 58 to rotate. The surface of the screw rod 52 is provided with a limit groove matched with the limit bolt 55. By setting the limit bolt 55, the screw rod 52 and the round tube 54 are rotated under the action of the rotation, so that the round tube 54 can rotate when the movable plate 53 moves. The rear end of the limit bolt 55 extends to the inner cavity of the limit groove.

[0024] See also Figure 2 , Figure 3 and Figure 4 The lower end of the short rod 57 is rotatably embedded in the rear side of the top of the moving plate 53 through a bearing, and the gear 2 58 is fixedly sleeved on the surface of the upper end of the short rod 57. By setting the gear 2 58, indirect transmission is performed between the gear 1 56 and the ring gear 59. When the gear 1 56 rotates, it rotates, and then can drive the ring gear 59 and the cylinder 61 to rotate. The surface of the ring gear 59 is fixedly connected to the top of the inner wall of the cylinder 61, and the gear 2 58 is respectively meshed with the gear 1 56 and the ring gear 59.

[0025] See also Figure 1 , Figure 2 and Figure 3 One end of the square rod 62 slides through the surface of the cylinder 61, and the other end of the square rod 62 is fixedly connected to one side of the cleaning brush 63. By setting the square rod 62, the cleaning brush 63 is guided and limited, and it can move on the cylinder 61. The spring 64 is movably sleeved on the surface of the square rod 62 close to one end of the cleaning brush 63. By setting the spring 64, the cleaning brush 63 maintains sufficient contact with the indicator tube 2 under the action of its elastic force, thereby improving the cleaning efficiency. The two ends of the spring 64 are respectively fixedly connected to the cleaning brush 63 and the surface of the cylinder 61.

[0026] See also Figure 1 and Figure 2 The surface of the mounting frame 1 is fixedly connected with a camera 7 through a bracket. By setting the camera 7, the position of the indicator barrel 2 where the float 3 is located can be photographed in real time, so that the water level situation can be known at all times. The bottom of the inner cavity of the indicator barrel 2 is fixedly connected with a support column. By setting the support column, the lower end of the screw rod 52 is supported, and the lower end of the screw rod 52 is rotatably connected to the top of the support column through a bearing.

[0027] See also Figure 1 and Figure 2 A fixing bolt is movably provided at the bottom of the right side of the indicator barrel 2, and the left end of the fixing bolt passes through the left side of the indicator barrel 2 and is threadedly sleeved with a fixing nut. By setting the fixing bolt and the fixing nut, the float 3 is installed on the indicator barrel 2 and then limited, which effectively prevents it from falling off.

[0028] When in use, the device is installed on the dam wall of the hydropower station, and the float 3 is floated under the action of water buoyancy. At the same time, the distance sensor 4 monitors the distance between it and the float 3. When the distance between the floats 3 is detected to be within the set value range, it means that the water level is high. The feedback is sent to the control room to control the hydropower station to open the gate to release water for power generation. The captured image can also be transmitted to the control room in real time through the camera 7, which is convenient for real-time monitoring of the water level of the hydropower station. The operation of the motor 51 is controlled to rotate the screw rod 52, thereby driving The movable plate 53, the round tube 54 and the cleaning mechanism 6 move. Under the action of the limit bolt 55, the rotation of the screw rod 52 drives it, the round tube 54 and the gear 1 56 to rotate. The rotation of the gear 1 56 drives the rotation of the gear 2 58, and then drives the rotation of the ring gear 59 and the cylinder 61, so that the square rod 62 and the cleaning brush 63 rotate. Under the action of the rotation and movement of the cleaning brush 63, the surface of the indicator barrel 2 can be cleaned, and algae can be effectively prevented from attaching, growing and reproducing on the indicator barrel 2, and the scales and numbers on it are blocked, so that it is convenient for personnel to observe the water level.

[0029] In summary: the water level monitoring device of the hydropower station, through the cooperation of the mounting frame 1, the indicating mark tube 2, the floating body 3, the distance sensor 4, the driving mechanism 5 and the cleaning mechanism 6, solves the problem that when obtaining the image of the interface between the scale and the water level through the camera device, the surface of the scale is prone to algae adhesion for a long time, and algae grow and reproduce on the surface to block the scale and value, thereby reducing the water level monitoring effect.

Claims

1. A water level monitoring device for a hydropower station, comprising a mounting frame (1), characterized in that: An indicator barrel (2) is welded to the left end of the mounting frame (1), a floating body (3) is slidably sleeved on the surface of the indicator barrel (2), a distance sensor (4) is fixedly mounted on the left side of the bottom of the mounting frame (1), a driving mechanism (5) is mounted on the surface of the indicator barrel (2), and a cleaning mechanism (6) is mounted on the surface of the driving mechanism (5); The driving mechanism (5) comprises a motor (51), a screw rod (52), a movable plate (53), a round tube (54), a stop bolt (55), a gear 1 (56), a short rod (57), a gear 2 (58) and a gear ring (59); the cleaning mechanism (6) comprises a cylinder (61), a square rod (62), a cleaning brush (63) and a spring (64); the inner wall of the cylinder (61) is rotatably sleeved on the surfaces of the two ends of the movable plate (53) through bearings.

2. A water level monitoring device for a hydropower station according to claim 1, characterized in that: One side of the motor (51) is fixedly connected to the top of the indicator barrel (2) by means of bolts, the rotating shaft of the motor (51) passes through the indicator barrel (2) and is fixedly connected to the upper end of the screw rod (52), the movable plate (53) is threadedly sleeved on the surface of the screw rod (52), the bottom end of the round tube (54) is rotatably connected to the top of the movable plate (53) by means of a bearing, the front end of the limit bolt (55) passes through and is fixedly embedded in the front face of the round tube (54), the gear 1 (56) is fixedly sleeved on the surface of the round tube (54), the surface of the screw rod (52) is provided with a limit groove matched with the limit bolt (55), and the rear end of the limit bolt (55) extends to the inner cavity of the limit groove.

3. A water level monitoring device for a hydropower station according to claim 1, characterized in that: The lower end of the short rod (57) is rotatably embedded in the rear side of the top of the moving plate (53) through a bearing, the second gear (58) is fixedly sleeved on the surface of the upper end of the short rod (57), the surface of the ring gear (59) is fixedly connected to the top of the inner wall of the cylinder (61), and the second gear (58) is meshed with the first gear (56) and the ring gear (59) respectively.

4. A water level monitoring device for a hydropower station according to claim 1, characterized in that: One end of the square rod (62) slides through the surface of the cylinder (61), and the other end of the square rod (62) is fixedly connected to one side of the cleaning brush (63). The spring (64) is movably sleeved on the surface of the square rod (62) close to one end of the cleaning brush (63), and the two ends of the spring (64) are respectively fixedly connected to the surfaces of the cleaning brush (63) and the cylinder (61).

5. A water level monitoring device for a hydropower station according to claim 1, characterized in that: The surface of the mounting frame (1) is fixedly connected to a camera (7) via a bracket, the bottom of the inner cavity of the indicator tube (2) is fixedly connected to a support column, and the lower end of the screw rod (52) is rotatably connected to the top of the support column via a bearing.

6. A water level monitoring device for a hydropower station according to claim 1, characterized in that: A fixing bolt is movably provided at the bottom of the right side of the indicator barrel (2), and the left end of the fixing bolt penetrates the left side of the indicator barrel (2) and is threadedly sleeved with a fixing nut.

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