Hydropower station water level monitoring system
By using a combination structure of fixed bearing plate, lifting cylinder and scale in hydropower station, the problem of bottom silt affecting water level detection was solved, and accurate measurement of water depth and silt thickness was achieved, thus improving the accuracy of water level monitoring.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-03-31
AI Technical Summary
Existing water level detection devices in hydropower stations are becoming inaccurate due to the increased thickness of silt at the bottom, affecting monitoring results.
It adopts a combination structure of fixed bearing plate, lifting cylinder, sliding bearing plate and scale. The water depth is measured by floating on the water surface by the float, and the water depth and silt thickness are measured by the lifting component and the traction component respectively.
It enables accurate measurement of water depth and bottom silt thickness, improving the practicality and accuracy of water level monitoring.
Smart Images
Figure CN224066196U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of water level monitoring devices, specifically a water level monitoring system for hydropower stations. Background Technology
[0002] A dam is an engineering project used to control and regulate surface water and groundwater in nature to achieve the purpose of eliminating harm and promoting benefits. It is also called a water engineering project. In order to facilitate water management and prevent water disasters, it is necessary to monitor the water level at the dam in real time.
[0003] Existing dam water level detection devices can monitor the dam water level in real time through red lights and ringing bells. However, when installing these devices, they are only fixed to the bottom of the water by a fixed column at the bottom of the outer cylinder. Due to the long-term operation of the hydropower station, the thickness of the silt at the bottom of the water will gradually increase over time. After long-term use, it is not convenient to measure the water depth and the thickness of the silt at the bottom, which in turn affects the monitoring results of the water level detection device. Utility Model Content
[0004] The purpose of this invention is to provide a hydropower station water level monitoring system to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A hydropower station water level monitoring system includes a fixed support plate, with ground nails fixedly connected to the bottom of the fixed support plate and a fixed rod fixedly connected to the top of the fixed support plate. A lifting cylinder is slidably connected to the outer wall of the fixed rod, and a sliding support plate is fixedly connected to the bottom of the lifting cylinder. An airbag is fixedly connected inside the sliding support plate. A sliding cylinder is slidably connected to the outer wall of the lifting cylinder, and a float is fixedly connected to the outer wall of the sliding cylinder. A second scale is provided on the outer wall of the fixed rod, and a first scale is provided on the outer wall of the lifting cylinder. The first scale cooperates with the top of the lifting cylinder, and the second scale cooperates with the sliding cylinder.
[0007] The lifting cylinder is equipped with a traction assembly for traction and fixing of the fixed rod;
[0008] A lifting assembly is installed between the fixed rod and the lifting cylinder for pulling the lifting cylinder up and down.
[0009] As a further embodiment of this utility model: the traction component includes a connecting block fixedly connected to the fixed rod, the lifting cylinder is provided with a connecting groove, the connecting block passes through the connecting groove and is fixedly connected to multiple sets of fixing rings, and the connecting block and the connecting groove are slidably connected to each other.
[0010] As a further embodiment of this utility model: the traction assembly also includes multiple sets of positioning pins, on which traction rings are fixedly connected, and a positioning cable is connected between the traction rings and the fixed rings.
[0011] As a further embodiment of this utility model: the lifting assembly includes a connecting ring fixedly connected to the top of the lifting cylinder, a fixed frame fixedly connected to the top of the fixed rod, a rotating shaft rotatably connected inside the fixed frame, pulleys fixedly connected to both sides of the rotating shaft, one end of a traction cable fixedly connected to the connecting ring, and the other end of the traction cable passing through the pulley and fixedly connected to a connecting block.
[0012] As a further improvement of this utility model: a counterweight is fixedly connected to the connecting block, and a handle is fixedly connected to the counterweight.
[0013] Compared with the prior art, the beneficial effects of this utility model are: this utility model realizes the separate measurement of water depth and bottom silt by the cooperation of two sets of scales and the setting of sliding bearing plate with sliding connection, thereby improving the practicality of the equipment. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of a hydropower station water level monitoring system according to the present invention.
[0015] Figure 2 This is a schematic diagram of the isometric structure of a hydropower station water level monitoring system according to the present invention.
[0016] Figure 3 This is a cross-sectional structural diagram of a hydropower station water level monitoring system according to the present invention.
[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of a hydropower station water level monitoring system according to the present invention.
[0018] In the diagram: 1-Fixed bearing plate, 2-Ground nail, 3-Fixed rod, 4-Sliding bearing plate, 5-Lifting cylinder, 6-Airbag, 7-Fixed ring, 8-Positioning nail, 9-Traction ring, 10-Positioning cable, 11-First scale, 12-Second scale, 13-Sliding cylinder, 14-Float, 15-Connecting ring, 16-Fixed frame, 17-Rotating shaft, 18-Pulley, 19-Traction cable, 20-Connecting block, 21-Counterweight block, 22-Handle. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] See Figures 1-4 In this embodiment of the utility model, a hydropower station water level monitoring system includes a fixed support plate 1, with ground nails 2 fixedly connected to the bottom of the fixed support plate 1, a fixed rod 3 fixedly connected to the top of the fixed support plate 1, a lifting cylinder 5 slidably connected to the outer wall of the fixed rod 3, a sliding support plate 4 fixedly connected to the bottom of the lifting cylinder 5, an airbag 6 fixedly connected inside the sliding support plate 4, a sliding cylinder 13 slidably connected to the outer wall of the lifting cylinder 5, a float 14 fixedly connected to the outer wall of the sliding cylinder 13, a second scale 12 provided on the outer wall of the fixed rod 3, a first scale 11 provided on the inner wall of the lifting cylinder 5, the first scale 11 cooperating with the top of the lifting cylinder 5, and the second scale 12 cooperating with the sliding cylinder 13; a traction assembly is installed outside the lifting cylinder 5; and a lifting assembly is installed between the fixed rod 3 and the lifting cylinder 5.
[0021] During the installation process, the ground nail 2 is first inserted into the ground, and then the fixing rod 3 is pulled and fixed by the traction component, so that the equipment is stably installed in the hydropower station, thereby preventing the equipment from shaking under the impact of the water flow. At this time, the float 14 always floats on the water surface under the action of the buoyancy of the water body, and the float 14 drives the sliding cylinder 13 to slide relative to the outer wall of the lifting cylinder 5.
[0022] When the water level in the hydropower station changes, the relative height between the sliding cylinder 13 and the outer wall of the lifting cylinder 5 changes. At this time, the relative height of the sliding cylinder 13 can be accurately measured by the first scale 11, and the water depth can be accurately measured by the relative height between the sliding cylinder 13 and the lifting cylinder 5.
[0023] Meanwhile, staff also need to periodically pull the lifting assembly to raise the lifting cylinder 5, which in turn raises the sliding bearing plate 4, thus pulling the sliding bearing plate 4 out of the silt. Then, the lifting assembly is released, allowing the sliding bearing plate 4 to fall to the top of the silt. At this point, the thickness of the silt at the bottom of the hydropower station can be measured by the relative height change between the lifting cylinder 5 and the first scale 11.
[0024] In one instance of this embodiment, please refer to Figures 1-4The traction assembly includes a connecting block 20 fixedly connected to the fixed rod 3. The lifting cylinder 5 is provided with a connecting groove. The connecting block 20 passes through the connecting groove and is fixedly connected to multiple sets of fixed rings 7. The connecting block 20 and the connecting groove are slidably connected to each other. The traction assembly also includes multiple sets of positioning pins 8. A traction ring 9 is fixedly connected to the positioning pin 8. A positioning cable 10 is connected between the traction ring 9 and the fixed ring 7.
[0025] The traction assembly first inserts the positioning nail 8 into the soil layer at the bottom of the power station, and then connects the traction ring 9 and the fixed ring 7 through the positioning cable 10. Then, the fixed rod 3 is traction and positioned by multiple angle traction tensioning of multiple sets of positioning cables 10.
[0026] In one instance of this embodiment, please refer to Figures 1-4 The lifting assembly includes a connecting ring 15 fixedly connected to the top of the lifting cylinder 5, a fixing frame 16 fixedly connected to the top of the fixing rod 3, a rotating shaft 17 rotatably connected inside the fixing frame 16, pulleys 18 fixedly connected to both sides of the rotating shaft 17, one end of a traction cable 19 fixedly connected to the connecting ring 15, the other end of the traction cable 19 passing through the pulleys 18 and fixedly connected to a connecting block 20, a counterweight block 21 fixedly connected to the connecting block 20, and a handle 22 fixedly connected to the counterweight block 21.
[0027] The lifting assembly first connects the lifting cylinder 5 to the lifting cylinder 5 via the traction cable 19 and the connecting ring 15. When the lifting cylinder 5 needs to be raised, the operator can pull the handle 22. The handle 22 pulls the traction cable 19 down via the counterweight 21 and the connecting block 20. The traction cable 19, under the action of the pulley 18, drives the connecting ring 15 to rise. The connecting ring 15 drives the lifting cylinder 5 to rise. After the lifting is completed, the handle 22 is released, and the lifting cylinder 5 falls back to its original position under the action of gravity. The lifting assembly keeps the traction cable 19 taut through the counterweight 21. The lifting assembly reduces the pulling force required for the operator to pull the handle 22 through the airbag 6 and the counterweight 21.
[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A water level monitoring system for a hydroelectric power station comprising a fixed load bearing plate characterised in that, The bottom of the fixed bearing plate is fixedly connected with an earth peg, and the top of the fixed bearing plate is fixedly connected with a fixed rod, the outer wall of the fixed rod is slidably connected with a lifting cylinder, the bottom of the lifting cylinder is fixedly connected with a sliding bearing plate, the sliding bearing plate is fixedly connected with an air bag, the outer wall of the lifting cylinder is slidably connected with a sliding cylinder, the outer wall of the sliding cylinder is fixedly connected with a float, the outer wall of the fixed rod is provided with a second scale, the outer wall of the lifting cylinder is provided with a first scale, the first scale and the top of the lifting cylinder are matched with each other, and the second scale and the sliding cylinder are matched with each other. The lifting cylinder is externally provided with a traction assembly for traction fixing of the fixed rod. A lifting assembly is installed between the fixed rod and the lifting cylinder for lifting the lifting cylinder.
2. A water level monitoring system for a hydroelectric power station as claimed in claim 1, wherein, The traction assembly comprises a connecting block fixedly connected to the fixed rod, the lifting cylinder is provided with a connecting groove, and the connecting block is fixedly connected with a plurality of fixed rings through the connecting groove.
3. A water level monitoring system for a hydroelectric power station as claimed in claim 2, wherein, The traction assembly further comprises a plurality of positioning nails, the positioning nails are fixedly connected with traction rings, and the traction rings are connected with the fixed rings through positioning cables.
4. The water level monitoring system for a hydroelectric power station of claim 1, wherein, The lifting assembly comprises a connecting ring fixedly connected to the top of the lifting cylinder, the top of the fixed rod is fixedly connected with a fixed frame, the fixed frame is rotatably connected with a rotating shaft, the rotating shaft is fixedly connected with a pulley on both sides, one end of a traction cable fixedly connected to the connecting ring, and the other end of the traction cable is fixedly connected with a connecting block through the pulley.
5. A water level monitoring system for a hydroelectric power station as claimed in claim 4, wherein, The connecting block is fixedly connected with a counterweight, and the counterweight is fixedly connected with a handle.