Hydraulic dam structure capable of realizing silt flushing and accurate positioning of lifting height

Abstract

The utility model discloses a hydraulic dam structure capable of realizing sediment flushing and accurate positioning of lifting height, a water spraying pipeline is movably arranged in a concrete bottom plate, the water spraying pipeline penetrates through each hydraulic cylinder groove, the water spraying pipeline positioned in the hydraulic cylinder groove is connected with a spray head and is movably sleeved with a supporting seat, and the supporting seat is connected with the concrete bottom plate. The supporting seats are fixed in the hydraulic cylinder grooves, one pressure sensor is arranged at the bottom of each hydraulic cylinder groove, one end of the water spraying pipeline extends into an equipment room beside a river channel and is connected with a water suction pump through a rotating joint via a pipeline, the water suction pump is connected with a water suction pipe, and the water spraying pipeline located in the equipment room is further connected with a water spraying pipeline rotation driving mechanism. According to the hydraulic dam structure, the hydraulic rod groove can be washed, and gravels and silt can be effectively prevented from entering the hydraulic cylinder groove. The lifting height of the gate can be detected in real time through the sensor, control is simple, the lifting height of the gate can be controlled accurately, and possible faults can be found in time.

Description

Technical Field

[0001] The utility model relates to a hydraulic dam structure capable of realizing sediment flushing and precise positioning of lifting height, and belongs to the technical field of water conservancy engineering structures. Background Art

[0002] A hydraulic dam consists of multiple gates and a control system. The gate chamber floor is a reinforced concrete structure, with the gates secured to the floor via hinged supports and a bottom shaft. The gates are raised and lowered using hydraulic rods and sliding support rods located behind them. When the gates need to be raised to store water, the hydraulic control system inside the gate control chamber is activated. The hydraulic rods, driven by oil pressure in the hydraulic circuit, push the gates upward. Upon reaching their maximum height, the sliding support rods reach their limit, unloading the hydraulic system. The gates are now fixedly supported by the support rods. When the dam needs to be lowered, the support rods pop out of their limiters, and the gates gradually descend under their own weight and water pressure, retracting the hydraulic rods into their slots. Alternating between the hydraulic and support rods allows the gates to be raised to store water and lowered to release water.

[0003] Hydraulic dams use sealant to seal the joints between the hydraulic cylinder groove and the concrete base. This sealant can easily fall off after prolonged water erosion, leading to sediment accumulation in the hydraulic cylinder groove, which in turn affects the hydraulic rod's movement and, in turn, the dam's operation. Furthermore, existing hydraulic dam gates only automatically shut down when the gate engine reaches its highest position. During the raising process, the gate's elevation cannot be automatically monitored. Raising the gate to a specified height (not the maximum height) often requires the coordinated efforts of two or more personnel: one in the control room, while another monitors the gate's elevation and provides feedback to the operator at the riverside. This makes control cumbersome. Furthermore, slight discrepancies between the elevation and the set height are invisible to the naked eye and may be due to component failures. This not only results in inaccurate gate elevation control but also hinders timely detection of potential faults. Summary of the Invention

[0004] The purpose of this utility model is to provide a hydraulic dam structure that can achieve silt flushing and precise positioning of the gate lift height. This hydraulic dam structure flushes the hydraulic rod slot, effectively preventing debris and silt from entering the hydraulic cylinder slot. Furthermore, sensors can monitor the gate lift height in real time, simplifying control and enabling precise gate lift height control, enabling timely detection of potential faults.

[0005] The technical solution of the utility model is: a hydraulic dam structure that can realize sediment flushing and precise positioning of lifting height, including a concrete base plate, a plurality of hydraulic cylinder grooves are provided on the concrete base plate, a hydraulic cylinder is installed in the hydraulic cylinder groove, a push rod of the hydraulic cylinder is connected to the gate, the lower end of the gate is movably installed on the concrete base plate, and a water spray pipe is movably provided inside the concrete base plate along the direction perpendicular to the river channel, the water spray pipe passes through each hydraulic cylinder groove, the water spray pipe located in the hydraulic cylinder groove is connected to a nozzle extending toward the downstream direction, and a support seat is movably sleeved, the support seat is fixed in the hydraulic cylinder groove, a pressure sensor is provided at the bottom of each hydraulic cylinder groove, one end of the water spray pipe extends into the equipment room beside the river channel, and is connected to a water pump through a pipe through a rotary joint, the water pump is connected to a water pumping pipe, and the water spray pipe located in the equipment room is also connected to a water spray pipe rotation drive mechanism.

[0006] In the aforementioned hydraulic dam structure that can achieve precise positioning of sediment flushing and lifting height, the water spray pipe rotation drive mechanism includes a driven gear fixedly sleeved on the water spray pipe, the driven gear is connected to the driving gear via a chain, and the driving gear is fixed on the output shaft of the motor drive mechanism.

[0007] In the aforementioned hydraulic dam structure that can achieve precise positioning of mud and sand flushing and lifting height, the upstream end of the hydraulic cylinder groove is an upward inclined structure, and the water spray pipe is located at the inclined structure; the downstream end of the hydraulic cylinder groove is provided with a downward inclined sand discharge groove.

[0008] In the aforementioned hydraulic dam structure capable of achieving precise positioning of sediment flushing and lifting height, two sprinklers are connected to the water spray pipe of each hydraulic cylinder slot; a casing is installed inside the concrete base plate, and the water spray pipe passes through the casing.

[0009] In the aforementioned hydraulic dam structure that can achieve precise positioning of sediment flushing and lifting height, the support seat includes a bearing sleeved on the water spray pipe, the bearing is embedded in the support seat body, and the bottom of the support seat body is fixed in the hydraulic cylinder groove.

[0010] In the aforementioned hydraulic dam structure capable of achieving precise positioning of sediment flushing and lifting height, piers are fixedly provided on the surface of the concrete bottom plate behind each hydraulic cylinder groove.

[0011] In the aforementioned hydraulic dam structure that can achieve precise positioning of sediment flushing and lifting height, a mounting rod across the river channel is provided above the gate, and a number of distance measuring sensors are installed on the mounting rod. Each distance measuring sensor corresponds to a gate, and the distance measuring sensor is connected to the gate control system.

[0012] In the aforementioned hydraulic dam structure that can achieve precise positioning of sediment flushing and lifting height, a plurality of vertical poles are also provided on the surface of the concrete bottom plate in front of the gate, and the upper ends of the vertical poles are connected to horizontal poles extending toward the downstream direction, and the mounting poles are fixed on the horizontal poles.

[0013] In the aforementioned hydraulic dam structure capable of achieving precise positioning of sediment flushing and lifting height, the horizontal rod is further fixedly connected to the vertical rod via an oblique pull rod.

[0014] The beneficial effects of the present invention are as follows: Compared with the prior art, the present invention is provided with a water spray pipe and a nozzle installed on the water spray pipe. When the pressure sensor detects a large amount of gravel and silt accumulated in the hydraulic cylinder groove, the gate control system controls the water pump connected to the water pump pipe to start operation, and sprays high-pressure water through the nozzle to flush the hydraulic cylinder groove, which can effectively prevent gravel and silt from accumulating in the hydraulic cylinder groove and thus affecting the operation of the gate. At the same time, by arranging a distance sensor above the gate, the distance sensor can detect the lifting height of the gate in real time during the gate operation, without the need to specifically observe the lifting height of the gate. The control is relatively simple, and the gate lifting height control is relatively accurate, so that possible faults can be discovered in a timely manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 for Figure 1 Schematic diagram of the side structure;

[0017] Figure 3 It is a structural diagram of the support seat.

[0018] Figure numerals: 1-concrete base plate, 2-hydraulic cylinder groove, 3-water spray pipe, 4-nozzle, 5-support seat, 6-pressure sensor, 7-rotary joint, 8-water pump, 9-driven gear, 10-driving gear, 11-motor drive mechanism, 12-sand discharge trough, 13-casing, 14-bearing, 15-support seat body, 16-pier, 17-mounting rod, 18-distance measuring sensor, 19-vertical pole, 20-horizontal rod, 21-oblique pull rod, 22-water pumping pipe. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0020] The embodiment of the utility model: a hydraulic dam structure capable of achieving sediment flushing and precise positioning of lifting height, such as Figure 1-3As shown, it includes a concrete base plate 1 arranged along the width direction of the river channel, a plurality of hydraulic cylinder grooves 2 are provided on the concrete base plate 1, a hydraulic cylinder is installed in the hydraulic cylinder groove 2, the push rod of the hydraulic cylinder is connected to the gate, and the lower end of the gate is movably installed on the concrete base plate 1. The above structures are all conventional settings of hydraulic dams and will not be described in detail. A water spray pipe 3 is movably arranged inside the concrete base plate 1 along the direction perpendicular to the river channel, and the water spray pipe 3 passes through the upstream end of each hydraulic cylinder groove 2. The water spray pipe 3 located in the hydraulic cylinder groove 2 is connected to a nozzle 4 extending toward the downstream direction. At the same time, a support seat 5 is movably sleeved on the water spray pipe 3 located in the hydraulic cylinder groove 2, and the bottom of the support seat 5 is fixed in the hydraulic cylinder groove 2. A pressure sensor 6 is provided at the bottom of each hydraulic cylinder groove 2. All pressure sensors 6 are connected to the gate control system in the original hydraulic dam structure. One end of the water spray pipe 3 extends into the equipment room set up beside the river channel, and the end of the water spray pipe 3 located in the equipment room is connected to a rotary joint 7. The other end of the rotary joint 7 is connected to a water pump 8 through a pipe. The water pump 8 is connected to a pumping pipe 22. The pumping pipe 22 can extend into the river channel or into the water reservoir. The water spray pipe 3 located in the equipment room is also connected to a water spray pipe rotation drive mechanism.

[0021] When the hydraulic dam's gate is erected and storing water, pressure sensor 6 is energized to monitor the amount of sediment accumulated in hydraulic cylinder tank 2. This data is fed back to the gate control system. When the monitoring data from pressure sensor 6 reaches a set threshold, the gate control system activates pump 8 to start pumping water, supplying water to spray pipe 3. Water in spray pipe 3 flows through nozzle 4 and is sprayed to flush the sediment accumulated in hydraulic cylinder tank 2, effectively preventing the accumulation of gravel and sediment in hydraulic cylinder tank 2, which could affect gate operation.

[0022] While pumping pump 8 is operating, the gate control system also controls the water pipe rotation drive mechanism. This mechanism drives the water pipe 3 to rotate back and forth within a certain angle range, allowing the water sprayed by nozzle 4 to flush sediment from different areas. After a certain flushing period, pumping pump 8 and the water pipe rotation drive mechanism stop operating. The provision of rotary joint 7 ensures that the water pipe rotation drive mechanism can only rotate the water pipe 3.

[0023] During silt flushing and gate discharge, to prevent high-pressure water from directly impacting the surface of pressure sensor 6 and causing it to transmit erroneous data signals, pressure sensor 6 is powered off and no longer monitors. When the gate discharge is complete and water begins to fill, pressure sensor 6 is powered on for monitoring. When the monitored data exceeds a threshold, flushing is initiated; otherwise, flushing is not initiated. Since no new gravel or silt enters the hydraulic cylinder tank 2 during water storage, pressure sensor 6 is powered off after a single data monitoring session until the next discharge is complete and water begins to fill, when monitoring resumes.

[0024] The water spray pipe rotation drive mechanism includes a driven gear 9 fixedly sleeved on the water spray pipe 3, the driven gear 9 is connected to the driving gear 10 via a chain, and the driving gear 10 is fixed to the output shaft of the motor drive mechanism 11. The motor drive mechanism 11 includes a motor and a reduction mechanism connected thereto. During use, the gate control system controls the motor drive mechanism 11 to start or stop. After the click drive mechanism 11 is started, its output shaft drives the driving gear 10 to rotate, thereby driving the driven gear 9 to rotate through the chain. The driven gear 9 then drives the water spray pipe 3 fixedly connected thereto to rotate. After the water spray pipe 3 rotates a certain angle, the motor drive mechanism 11 stops and then rotates in the opposite direction. The support seat 5 is used to support the water spray pipe 3 to prevent the water spray pipe 3 from bending and sagging, while ensuring that it can rotate.

[0025] The upstream end of the hydraulic cylinder tank 2 features an upwardly angled slope, with a water spray pipe 3 located within it. Because gravel and silt typically accumulate within the main structure of the hydraulic cylinder tank 2, the placement of the water spray pipe 3 within this slope facilitates flushing of these gravel and silt. The slope also prevents the back of the gate from contacting the water spray pipe 3 during water release. A downwardly angled sand discharge chute 12 is located at the downstream end of the hydraulic cylinder tank 2, through which gravel and silt are discharged during the flushing process.

[0026] Two nozzles 4 are connected to the water spray pipe 3 of each hydraulic cylinder tank 2, which can effectively clean the hydraulic cylinder tank 2. A sleeve 13 is installed inside the concrete base plate 1, and the water spray pipe 3 passes through the sleeve 13 to prevent the water spray pipe 3 from sticking to the concrete during the pouring process of the concrete base plate 1.

[0027] The support base 5 includes a bearing 14 that is sleeved onto the water pipe 3. The bearing 14 is embedded in a support base body 15. The bottom of the support base body 15 is fixed in the hydraulic cylinder slot 2. The bearing 14 supports the water pipe 3 and ensures its stable rotation. A buttress 16 is fixed to the surface of the concrete base plate 1 behind each hydraulic cylinder slot 2. When the gate is releasing water, its back is supported on the buttress 16 after opening, ensuring that the back of the gate does not contact the water pipe 3.

[0028] A mounting rod 17 is provided above the gate, extending across the river channel, with each end of the mounting rod 17 fixed to the river bank. Several distance sensors 18 are mounted on the mounting rod 17, each corresponding to a gate, and the distance sensors 18 are connected to the gate control system. During the gate's rotation, its vertical height changes. The distance sensors 18 can monitor the height of the gate directly below it to confirm whether each gate has been raised to the specified height during the water storage process. The entire process does not require personnel to stand by the river channel to confirm whether the gate has been raised to its designated height, freeing up the operator and simplifying the entire control process. Furthermore, the distance sensors 18 are used to monitor the gate's height, and the height data obtained from the monitoring is relatively accurate. If a slight discrepancy is found between the actual gate's raised height and the set height, personnel can be dispatched promptly to inspect the gate and related components, enabling timely detection of potential faults and the implementation of relevant measures.

[0029] The concrete base plate 1 in front of the gate is also provided with a plurality of vertical poles 19, the upper ends of which are connected to horizontal poles 20 extending downstream, and the mounting rod 17 is fixed on the horizontal poles 20. When the span of the river channel is large, in order to prevent the mounting rod 17 from sinking, the vertical poles 19 and horizontal poles 20 are provided to support the mounting rod 17 in the middle position.

[0030] The horizontal rod 20 is also fixedly connected to the vertical rod 19 via the oblique pull rod 21 , and the horizontal rod 20 is lifted and fixed by the oblique pull rod 21 .

[0031] The motor of the motor drive mechanism 11 can be powered by mains electricity, and a photovoltaic power generation device can be set up beside the river to power the motor.

Claims

1. A hydraulic dam structure capable of achieving precise positioning of sediment flushing and lifting height, comprising a concrete base plate (1), a plurality of hydraulic cylinder grooves (2) provided on the concrete base plate (1), a hydraulic cylinder installed in the hydraulic cylinder groove (2), a push rod of the hydraulic cylinder connected to a gate, the lower end of the gate being movably mounted on the concrete base plate (1), characterized in that: A water spray pipe (3) is movably provided inside the concrete bottom plate (1) along a direction perpendicular to the river channel. The water spray pipe (3) passes through each hydraulic cylinder groove (2). The water spray pipe (3) located in the hydraulic cylinder groove (2) is connected to a nozzle (4) extending toward the downstream direction and a support seat (5) movably sleeved thereon. The support seat (5) is fixed in the hydraulic cylinder groove (2). A pressure sensor (6) is provided at the bottom of each hydraulic cylinder groove (2). One end of the water spray pipe (3) extends into an equipment room at the river channel and is connected to a water pump (8) through a pipe via a rotary joint (7). The water pump (8) is connected to a water pump (22). The water spray pipe (3) located in the equipment room is also connected to a water spray pipe rotation drive mechanism.

2. The hydraulic dam structure capable of achieving sediment flushing and precise positioning of lifting height according to claim 1, characterized in that: The water spray pipe rotation drive mechanism includes a driven gear (9) fixedly sleeved on the water spray pipe (3), the driven gear (9) is connected to a driving gear (10) via a chain, and the driving gear (10) is fixed on the output shaft of the motor drive mechanism (11).

3. The hydraulic dam structure capable of achieving sediment flushing and precise positioning of lifting height according to claim 1 is characterized in that: The upstream end of the hydraulic cylinder groove (2) is an inclined surface structure that is inclined upward, and the water spray pipe (3) is located at the inclined surface structure; the downstream end of the hydraulic cylinder groove (2) is provided with a sand discharge groove (12) that is inclined downward.

4. The hydraulic dam structure capable of achieving sediment flushing and precise positioning of lifting height according to claim 1 is characterized by: Two spray heads (4) are connected to the water spray pipe (3) of each hydraulic cylinder groove (2); a sleeve (13) is installed inside the concrete base plate (1), and the water spray pipe (3) passes through the sleeve (13).

5. The hydraulic dam structure capable of achieving sediment flushing and precise positioning of lifting height according to claim 1 is characterized in that: The support seat (5) includes a bearing (14) sleeved on the water spray pipe (3), the bearing (14) is embedded in the support seat body (15), and the bottom of the support seat body (15) is fixed in the hydraulic cylinder groove (2).

6. The hydraulic dam structure capable of achieving sediment flushing and precise positioning of lifting height according to claim 1 is characterized by: A buttress (16) is fixedly provided on the surface of the concrete base plate (1) behind each hydraulic cylinder groove (2).

7. The hydraulic dam structure capable of achieving sediment flushing and precise positioning of lifting height according to claim 1 is characterized by: A mounting rod (17) across the river channel is provided above the gate, and a plurality of distance sensors (18) are installed on the mounting rod (17). Each distance sensor (18) corresponds to a gate, and the distance sensors (18) are connected to the gate control system.

8. The hydraulic dam structure capable of achieving sediment flushing and precise positioning of lifting height according to claim 1 is characterized in that: A plurality of vertical rods (19) are also provided on the surface of the concrete bottom plate (1) in front of the gate. The upper ends of the vertical rods (19) are connected to horizontal rods (20) extending in the downstream direction, and the mounting rods (17) are fixed on the horizontal rods (20).

9. The hydraulic dam structure capable of achieving sediment flushing and precise positioning of lifting height according to claim 8, characterized in that: The horizontal rod (20) is also fixedly connected to the vertical rod (19) via an oblique pull rod (21).

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