Water level monitoring device for hydroelectric power station

Abstract

The utility model relates to a water level monitoring device for a hydroelectric power station, which comprises a liquid level meter body, a bottom shell and a telescopic pipe fixedly connected to the top of the bottom shell, the bottom shell is communicated with the telescopic pipe, the liquid level meter body is fixedly connected to the inner top wall of the telescopic pipe, one side of the telescopic pipe is fixedly connected with a support, and the support is fixedly connected with a water level sensor. The support is fixedly connected to the wall of the power station through bolts, the lower half portion of the bottom shell is immersed in water, the bottom of the bottom shell is open, and a filter screen is fixedly connected to the bottom of the bottom shell. The utility model relates to the technical field of water level monitoring. The filter screen can block silt and sundries and prevent the silt and the sundries from entering the bottom shell, and due to the fact that the speed of water flowing through the filter screen is low, when water surface fluctuates due to waves, water in the bottom shell cannot reach the fluctuation degree of the water flow outside the bottom shell, the calculation result of the liquid level meter body cannot be greatly influenced, and the water level meter is convenient to use. And the accuracy of water level monitoring is improved.

Description

Technical Field

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

[0002] Water conservancy projects are projects built to control and allocate natural surface water and groundwater to achieve the purpose of eliminating harm and promoting benefits. They are also called water projects. Water level monitoring is an indispensable part of water conservancy project inspection work. Water level monitoring mainly monitors the water depth intercepted by dams and other water conservancy projects. Water level monitoring devices are also used in hydroelectric power stations.

[0003] The water level monitoring device includes an ultrasonic level meter, which is located above the water surface and calculates the distance between the sensor and the surface of the liquid being measured by emitting and receiving ultrasonic waves. However, in some cases, the wave amplitude is large and the ups and downs of the water surface will affect the calculation results of the ultrasonic level meter, thereby reducing the accuracy of water level monitoring. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a water level monitoring device for a hydropower station, which has the effect of improving the accuracy of water level monitoring.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A water level monitoring device for a hydropower station comprises a liquid level gauge body, a bottom shell and a telescopic tube fixedly connected to the top of the bottom shell, the bottom shell is in communication with the telescopic tube, the liquid level gauge body is fixedly connected to the inner top wall of the telescopic tube, a bracket is fixedly connected to one side of the telescopic tube, the bracket is fixedly connected to the wall of the power station by bolts, the lower half of the bottom shell is immersed in water, the bottom of the bottom shell is open, and a filter is fixedly connected to the bottom of the bottom shell.

[0007] Through the above technical scheme, through the cooperation of the liquid level gauge body, bottom shell, bracket, filter screen and telescopic tube, the liquid level gauge body monitors the water level height in the bottom shell, the filter screen can block mud and debris to prevent them from entering the bottom shell, and because the speed of water flowing through the filter screen is slow, when waves cause the water surface to fluctuate, the water in the bottom shell is far from reaching the fluctuation level of the water flow outside the bottom shell, so it will not greatly affect the calculation result of the liquid level gauge body, thereby improving the accuracy of water level monitoring.

[0008] In a preferred example, the utility model can be further configured as follows: a driven rod is rotatably penetrated on one side of the filter screen, a scraper is fixedly connected to the lower half of the outer circumference of the driven rod, the scraper is fitted with the bottom of the filter screen, a submersible motor is fixedly connected to the side wall of the bottom shell, and the output end of the submersible motor is transmission-connected to the driven rod through a transmission part.

[0009] Through the above technical solution, through the cooperation of the driven rod, the scraper and the submersible motor, the submersible motor drives the scraper to rotate when working, and scrapes off the debris attached to the bottom of the filter to prevent the filter from being blocked.

[0010] In a preferred example, the utility model can be further configured as follows: a plurality of threaded barrels are fixedly connected to the top of the filter screen, a plurality of screw rods are rotatably connected to the top of the telescopic tube, the lower half of the screw rod is threadedly connected to the corresponding threaded barrel, a driven gear is fixedly sleeved on the upper half of the outer circumference of the screw rod, a driving rod is rotatably penetrated through the upper half of the telescopic tube, a driving gear is fixedly sleeved on the outer circumference of the driving rod, and the driving gear is meshed with the plurality of driven gears.

[0011] Through the above technical solution, through the cooperation of the threaded barrel, the screw, the driving rod, the driven gear and the driving gear, rotating the driving rod can drive the telescopic tube to telescope and deform, thereby adjusting the length of the device to suit the actual scene, thereby improving the applicability of the device.

[0012] In a preferred example, the utility model can be further configured as follows: an alarm is fixedly connected to the top of the telescopic tube, and the liquid level meter body is electrically connected to the alarm.

[0013] Through the above technical solution, by setting the alarm, when the water level is high, the alarm will sound to remind the staff to pay attention to flood discharge.

[0014] In a preferred example, the utility model can be further configured as follows: a plurality of the threaded barrels and a plurality of the screw rods are evenly arranged in a ring shape.

[0015] Through the above technical solution, the telescopic tube is subjected to a more uniform force when the driving rod is rotated, and will not tilt.

[0016] In summary, the present invention includes at least one of the following beneficial technical effects:

[0017] 1. Through the cooperation of the liquid level gauge body, bottom shell, bracket, filter and telescopic tube, the liquid level gauge body monitors the water level height in the bottom shell. The filter can block mud and debris to prevent them from entering the bottom shell. Because the speed of water flowing through the filter is slow, when the waves cause the water surface to fluctuate, the water in the bottom shell is far from reaching the fluctuation of the water flow outside the bottom shell. Therefore, it will not greatly affect the calculation results of the liquid level gauge body, thereby improving the accuracy of water level monitoring.

[0018] 2. Through the cooperation of the driven rod, scraper and submersible motor, the submersible motor drives the scraper to rotate when working, scraping off the debris attached to the bottom of the filter to prevent the filter from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional diagram of this embodiment;

[0020] Figure 2 This embodiment Figure 1 Enlarged view of point A in the middle.

[0021] In the figure, 1. liquid level meter body; 2. telescopic tube; 3. bottom shell; 4. bracket; 5. filter; 6. driven rod; 7. scraper; 8. submersible motor; 9. transmission part; 10. threaded cylinder; 11. screw; 12. driven gear; 13. drive rod; 14. drive gear; 15. alarm. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings. Example

[0023] Reference Figure 1 to Figure 2 The utility model discloses a water level monitoring device for a hydropower station, comprising a liquid level meter body 1, which is an ultrasonic liquid level meter.

[0024] The liquid level meter also includes a bottom shell 3 and a telescopic tube 2 fixedly connected to the top of the bottom shell 3. The telescopic tube 2 is a prior art technology and can be telescopically deformed. The bottom shell 3 is in communication with the telescopic tube 2. The liquid level meter body 1 is fixedly connected to the inner top wall of the telescopic tube 2.

[0025] A bracket 4 is fixedly connected to one side of the telescopic tube 2, and the bracket 4 is fixedly connected to the wall of the power station by bolts, and the lower half of the bottom shell 3 is immersed in water. The bottom of the bottom shell 3 is open, and a filter 5 is fixedly connected to the bottom of the bottom shell 3. Water can pass through the filter 5, but impurities cannot pass through the filter 5.

[0026] Since the bottom shell 3 is inserted into the water, the water will flow through the filter 5 into the bottom shell 3, and under the action of the hydraulic pressure, the water level in the bottom shell 3 is the same as the water level outside the bottom shell 3. The liquid level meter body 1 monitors the water level in the bottom shell 3, thereby achieving the effect of monitoring the overall water level outside the bottom shell 3.

[0027] A driven rod 6 is rotatably passed through one side of the filter screen 5, and a scraper 7 is fixedly connected to the lower half of the outer circumference of the driven rod 6, and the scraper 7 is in contact with the bottom of the filter screen 5. A submersible motor 8 is fixedly connected to the side wall of the bottom shell 3, and the output end of the submersible motor 8 is transmission-connected to the driven rod 6 through a transmission part 9. The transmission part 9 includes an active rod transmission-connected to the output end of the submersible motor 8, and the active rod rotates through the side wall of the bottom shell 3 and extends into the bottom shell 3. The active rod is transmission-connected to the driven rod 6 through a pair of bevel gears.

[0028] The submersible motor 8 drives the driven rod 6 and the scraper 7 to rotate, and the scraper 7 scrapes off the debris attached to the bottom of the filter 5 to prevent the filter 5 from being blocked. The submersible motor 8 can be set to work at a fixed time by the controller, so that the submersible motor 8 automatically works to clean the filter 5 at regular intervals to reduce energy consumption.

[0029] The top of the filter screen 5 is fixedly connected with a plurality of threaded barrels 10, and the top of the telescopic tube 2 is rotatably connected with a plurality of screw rods 11, and the lower half of the screw rods 11 is threadedly connected in the corresponding threaded barrels 10. The plurality of threaded barrels 10 and the plurality of screw rods 11 are evenly arranged in a ring.

[0030] A driven gear 12 is fixedly sleeved on the upper half of the outer circumference of the screw rod 11, a driving rod 13 is rotatably penetrated on the upper half of the telescopic tube 2, and a driving gear 14 is fixedly sleeved on the outer circumference of the driving rod 13, and the driving gear 14 is meshed with several driven gears 12.

[0031] Rotating the driving rod 13 drives the driving gear 14 to rotate, the driving gear 14 drives a plurality of driven gears 12 to rotate, the driven gear 12 drives the screw 11 to rotate, thereby driving the telescopic tube 2 to telescope and deform, adjusting the length of the device, and being suitable for different scenarios.

[0032] For example, when the bracket 4 is fixed on the wall of the power station and the lower half of the bottom shell 3 has not yet extended into the water surface, the driving rod 13 can be rotated to extend the telescopic tube 2 until the lower half of the bottom shell 3 is inserted into the water surface, so that water level monitoring can be carried out.

[0033] The top of the telescopic tube 2 is fixedly connected with an alarm 15, and the level meter body 1 is electrically connected to the alarm 15 through the PLC controller. When the water level is high, the alarm 15 transmits a signal to the PLC controller, and the PLC controller activates the alarm 15 to warn the staff to pay attention to flood discharge.

[0034] The implementation principle of the above embodiment is:

[0035] The bracket 4 is fixed to the wall of the power station by bolts, and the driving rod 13 is rotated to drive the driving gear 14 to rotate, and the driving gear 14 drives a number of driven gears 12 to rotate, and the driven gear 12 drives the screw 11 to rotate, thereby driving the telescopic tube 2 to telescope and deform, and adjusting the length of the device until the lower half of the bottom shell 3 is inserted into the water surface. The water flow will pass through the filter 5 into the bottom shell 3, and under the action of hydraulic pressure, the water level in the bottom shell 3 is the same as the water level outside the bottom shell 3. The liquid level meter body 1 monitors the water level in the bottom shell 3, thereby achieving the effect of monitoring the overall water level outside the bottom shell 3.

[0036] When wind and waves occur, since the speed of water flowing through the filter 5 is slow, the water in the bottom shell 3 is far from reaching the fluctuation level of the water flow outside the bottom shell 3, so it will not greatly affect the calculation result of the liquid level meter body 1, thereby improving the accuracy of water level monitoring.

[0037] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A water level monitoring device for a hydropower station, comprising a liquid level meter body (1), characterized in that: It also comprises a bottom shell (3) and a telescopic tube (2) fixedly connected to the top of the bottom shell (3); the bottom shell (3) is in communication with the telescopic tube (2); the level meter body (1) is fixedly connected to the inner top wall of the telescopic tube (2); a bracket (4) is fixedly connected to one side of the telescopic tube (2); the bracket (4) is fixedly connected to the wall of the power station by bolts; the lower half of the bottom shell (3) is immersed in water; the bottom of the bottom shell (3) is open; and a filter screen (5) is fixedly connected to the bottom of the bottom shell (3).

2. A water level monitoring device for a hydropower station according to claim 1, characterized in that: A driven rod (6) is rotatably inserted into one side of the filter screen (5), a scraper (7) is fixedly connected to the lower half of the outer circumference of the driven rod (6), the scraper (7) is in contact with the bottom of the filter screen (5), a submersible motor (8) is fixedly connected to the side wall of the bottom shell (3), and the output end of the submersible motor (8) is transmission-connected to the driven rod (6) via a transmission part (9).

3. A water level monitoring device for a hydropower station according to claim 2, characterized in that: The top of the filter screen (5) is fixedly connected to a plurality of threaded barrels (10), the top of the telescopic tube (2) is rotatably connected to a plurality of screw rods (11), the lower half of the screw rods (11) is threadedly connected to the corresponding threaded barrels (10), the upper half of the outer circumference of the screw rods (11) is fixedly sleeved with a driven gear (12), the upper half of the telescopic tube (2) is rotatably penetrated by a driving rod (13), the outer circumference of the driving rod (13) is fixedly sleeved with a driving gear (14), and the driving gear (14) is meshed with the plurality of driven gears (12).

4. The water level monitoring device for a hydropower station according to claim 3, characterized in that: An alarm (15) is fixedly connected to the top of the telescopic tube (2), and the liquid level meter body (1) is electrically connected to the alarm (15).

5. The water level monitoring device for a hydropower station according to claim 4, characterized in that: The plurality of threaded barrels (10) and the plurality of screw rods (11) are arranged evenly in a ring shape.

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