Sand washing device for water conservancy and hydropower
By designing negative pressure sludge pumping, sludge pushing, and mixing mechanisms for the hydropower sludge flushing device, the problem of insufficient water flow disturbance during the sludge flushing process of the hydropower station was solved, achieving efficient removal of silt from various areas of the reservoir and ensuring the complete discharge of silt.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HEBEI CONSTR GRP
- Filing Date
- 2026-03-10
- Publication Date
- 2026-06-02
AI Technical Summary
Existing hydropower stations have difficulty creating effective full-range turbulence in all areas of the reservoir during the sand flushing process. This is especially true in areas with insufficient water flow disturbance, such as the corners of the reservoir and stagnant water areas, which leads to continuous siltation and the formation of permanent silt deposits that are difficult to remove.
A water conservancy and hydropower sand flushing device was designed, including a negative pressure sludge pumping mechanism, a sludge pushing mechanism, a drive and guiding mechanism, and a sludge mixing mechanism. By coordinating the kinetic energy of the gate with the sludge pushing mechanism, the device utilizes negative pressure suction and mechanical pushing to synergistically stir and disturb the sludge, thereby achieving precise suction and discharge.
It significantly improves the sediment discharge effect in areas with insufficient water flow disturbance, such as the corners and stagnant water areas of the reservoir, ensuring that sediment can be effectively removed and avoiding permanent siltation.
Smart Images
Figure CN122129056A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of power plant sand flushing technology, specifically a water conservancy and hydropower sand flushing device. Background Technology
[0002] After a long period of use, a large amount of silt will accumulate at the bottom of the reservoir. Generally, the silt is removed by opening the sand flushing gate at the bottom of the hydropower station and using the water flow to flush away the accumulated silt.
[0003] However, when hydropower stations use sand flushing gates to discharge sand, it is often difficult to create effective full-range disturbance in all areas of the reservoir. Especially in some corners of the reservoir area, dead water areas and other areas with insufficient water flow disturbance, the sand flushing effect is poor, which can easily lead to continuous siltation and the formation of permanent silt that is difficult to remove. Summary of the Invention
[0004] In view of the shortcomings of the prior art, the present invention provides a water conservancy and hydropower sand flushing device, which solves the problems mentioned in the background above.
[0005] This invention provides the following technical solution: a water conservancy and hydropower sand flushing device, comprising: The negative pressure sludge pumping mechanism uses the kinetic energy of the sludge and water discharged from the gate to pump sludge and sand from a fixed point. A mud-pushing mechanism is located upstream of the negative pressure mud-pumping mechanism to assist the negative pressure mud-pumping mechanism in pushing mud and sand to a fixed point. A drive guiding mechanism, mounted on top of the sludge pushing mechanism, drives the sludge pushing mechanism and the sludge mixing mechanism to operate; and, A sludge stirring mechanism is disposed on the surface of a sludge pushing mechanism to agitate the sludge and sand accumulated on the bottom of the water around the sludge pushing mechanism.
[0006] Preferably, the negative pressure sludge pumping mechanism includes: The gate guide bucket, suction discharge pipe, and bypass pipe are used to guide the mud and water from the gate into the suction discharge pipe. The suction discharge pipe is fixedly connected to the output end of the gate guide bucket so that the kinetic energy of the mud and water discharged through the gate generates a negative pressure suction effect. The bypass pipe is integrally set on the top surface of the suction discharge pipe to discharge the negative pressure generated by the flow of mud and water inside the suction discharge pipe.
[0007] Preferably, the negative pressure sludge pumping mechanism further includes: The mud conveying conduit and the spiral reinforcing rib are fixedly connected to one end of the bypass pipe and are located above the gate guide bucket to guide mud and water from a fixed position into the bypass pipe, while ensuring that the mud conveying conduit is exposed above the water surface under normal conditions. The spiral reinforcing rib is fixedly sleeved on the surface of the mud conveying conduit to reinforce it.
[0008] Preferably, the mud-pushing mechanism includes: The system comprises a sediment pushing cylinder, a mounting base plate, a support plate, and an isolation screen plate. The sediment pushing cylinder is located upstream of the gate guide bucket to guide the surrounding sediment at a fixed point. The mounting base plate is integrally set at the bottom of the sediment pushing cylinder to assist in its installation. The support plate is integrally set between the sediment pushing cylinder and the mounting base plate to provide support and reinforcement for the sediment pushing cylinder. The isolation screen plate is fixedly connected to the inner wall of the sediment pushing cylinder to filter the sediment entering the cylinder.
[0009] Preferably, the mud-pushing mechanism further includes: The system includes a drive shaft, mud-dispersing blades, and a spiral pusher blade. The drive shaft is rotatably connected to the inside of the mud-pushing cylinder via bearings to transmit power to the mud-dispersing blades and the spiral pusher blade. The mud-dispersing blade is fixedly sleeved on the surface of the drive shaft to further crush the mud and sand. The spiral pusher blade is fixedly sleeved on the surface of the drive shaft and is located below the mud-dispersing blade to push the mud and sand upward.
[0010] Preferably, the driving guide mechanism includes: The system comprises a flow guide shell, a contraction port, a docking seat, an output bypass pipe, a pressure relief bypass pipe, a solenoid valve, and a rain cover. The flow guide shell is fixedly connected to the top of the sediment pushing cylinder. The contraction port is located at the top of the flow guide shell to narrow the flow path of the sediment. The docking seat is integrally located at the top of the flow guide shell to fix the first inner support block. The output bypass pipe is integrally located on one side of the docking seat, and one end of the output bypass pipe is fixedly connected to one end of the sediment conveying pipe to ensure sediment transport. The pressure relief bypass pipe is integrally located on the other side of the docking seat. The solenoid valve is fixedly installed at one end of the pressure relief bypass pipe to relieve pressure inside the sediment conveying pipe under normal conditions. The rain cover is fixedly fitted onto the surface of the flow guide shell to protect the driven gear ring and the slurry mixing disc above.
[0011] Preferably, the driving guide mechanism further includes: The assembly includes a connecting plate, a pushing mechanical chamber, a slurry mixing mechanical chamber, a first inner support block, and a top cover. The connecting plate is fixedly connected to the top of the docking seat. The first inner support block is fixedly connected inside the connecting plate, and its inner wall is rotatably connected to the surface of the transmission main shaft via a bearing to support the transmission main shaft. The pushing mechanical chamber is integrally disposed on the lower surface of one end of the connecting plate to protect the pushing motor. The slurry mixing mechanical chamber is integrally disposed on the lower surface of the other end of the connecting plate to protect the slurry mixing motor. The top cover is fixedly connected to the top of the connecting plate to protect the driving synchronous pulley, the driven synchronous pulley, and the synchronous belt.
[0012] Preferably, the driving guide mechanism further includes: The system comprises a second inner support block, a third inner support block, a fourth inner support block, a drive motor, a driving synchronous pulley, a driven synchronous pulley, a synchronous belt, a mud-stirring motor, a drive gear, and a support gear. The second and third inner support blocks are fixedly connected inside the push mechanism chamber to support the drive motor and support gear, respectively. The fourth inner support block is fixedly connected inside the mud-stirring mechanism chamber to support the mud-stirring motor. The drive motor is fixedly mounted on one side of the second inner support block to drive the transmission shaft to rotate. The driving synchronous pulley is fixedly mounted on the output end of the drive motor. The driven synchronous pulley is fixedly sleeved on the surface of the transmission shaft. The synchronous belt is installed between the driving and driven synchronous pulleys to achieve transmission between the drive motor and the transmission shaft. The mud-stirring motor is fixedly mounted on one side of the fourth inner support block to drive the mud-stirring disc to rotate. The drive gear is fixedly mounted on the output end of the mud-stirring motor to cooperate with the driven gear ring to amplify the torque of the mud-stirring motor on the mud-stirring disc. The support gear is rotatably connected to one side of the third inner support block via a rotating shaft to support the driven gear ring.
[0013] Preferably, the sludge mixing mechanism includes: The system comprises a splicing ring, a driven gear ring, a slurry turntable, and an extension arm. The splicing ring is rotatably connected to the surface of the mud and sand pushing cylinder via bearings to achieve synchronization between the driven gear ring and the slurry turntable. The driven gear ring is fixedly sleeved on the surface of the splicing ring, and its surface meshes with both the surface of the driving gear and the surface of the support gear to cooperate with the splicing ring in realizing the transmission between the slurry motor and the slurry turntable. The slurry turntable is fixedly sleeved on the surface of the splicing ring, and the extension arm is integrally set on the surface of the slurry turntable to support the slurry chain.
[0014] Preferably, the sludge mixing mechanism further includes: The device includes a hanging ring, a mud-stirring chain, and a counterweight ball. The hanging ring is fixedly connected to the bottom of the extension arm, the mud-stirring chain is sleeved on the bottom of the hanging ring to agitate the silt at the bottom of the water, and the counterweight ball is fixedly connected to the bottom end of the mud-stirring chain to counterweight the mud-stirring chain.
[0015] Compared with the prior art, the present invention has the following beneficial effects: This water conservancy and hydropower sand flushing device, through the installation of a negative pressure sludge pumping mechanism, a sludge pushing mechanism, a drive and guiding mechanism, and a sludge mixing mechanism, can stir and disturb the sludge in a fixed area during use. In conjunction with the negative pressure sludge pumping mechanism, it uses the kinetic energy of the gate and the sludge pushing mechanism to discharge the disturbed sludge, thereby significantly improving the sludge discharge effect in areas with insufficient water flow disturbance, such as the corners of the reservoir and stagnant water areas.
[0016] This water conservancy and hydropower sand flushing device, through the setting of gate guide bucket, suction and discharge pipe, bypass pipe, mud conveying pipe and spiral reinforcing rib, can convert the power of mud and water at the gate into negative pressure suction, thereby accurately forming negative pressure suction of silt at a fixed location.
[0017] This water conservancy and hydropower sand flushing device, through the setting of a mud and sand pushing cylinder, mounting base plate, support plate, isolation screen plate, transmission main shaft, mud dispersing and stirring plate and spiral pushing plate, can use the mechanical push of the spiral pushing plate to assist the negative pressure mud pumping mechanism to improve the mud pushing effect, thereby discharging the silt from a fixed point.
[0018] This water conservancy and hydropower sand flushing device, through the inclusion of a flow guide shell, contraction port, docking seat, output bypass pipe, pressure relief bypass pipe, solenoid valve, rain cover, connecting plate, pushing mechanical chamber, mud stirring mechanical chamber, first inner support block, top cover, second inner support block, third inner support block, fourth inner support block, drive motor, driving synchronous pulley, driven synchronous pulley, synchronous belt, mud stirring motor, drive gear, and support gear, can provide rotational power to the transmission main shaft and mud stirring turntable respectively through the drive motor and mud stirring motor during use.
[0019] This water conservancy and hydropower sand flushing device, through its splicing ring, driven toothed ring, mud-stirring turntable, extension arm, hanging ring, mud-stirring chain, and counterweight ball, can disturb the water droplets and silt by dragging the mud-stirring chain during use, thereby facilitating the dispersion of silt into the water for pumping. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure at the location of the sludge mixing mechanism of the present invention; Figure 3 This is a schematic diagram of the negative pressure sludge removal mechanism of the present invention; Figure 4 This is a schematic diagram of the structure at the location of the mud-stirring turntable in this invention; Figure 5 This is a bottom view of the location of the mud-pushing mechanism of the present invention; Figure 6 This is a cross-sectional view of the location of the mud-pushing mechanism of the present invention; Figure 7 This is a schematic diagram of the structure at the positions of the mud-dispersing plate and the spiral pushing plate of the present invention; Figure 8 This is a schematic diagram of the structure at the location of the sediment pushing cylinder of the present invention; Figure 9 This is a schematic diagram of the structure at the location of the flow guide shell of the present invention; Figure 10 This is a schematic diagram of the structure at the location of the mud-stirring machine chamber of the present invention.
[0021] In the picture: 101. Gate guide hopper; 102. Suction and discharge pipe; 103. Bypass pipe; 104. Sludge conveying pipe; 105. Spiral reinforcing rib; 201. Sludge pushing cylinder; 202. Mounting base plate; 203. Support plate; 204. Isolation screen plate; 205. Drive shaft; 206. Sludge mixing blade; 207. Spiral pushing blade; 301. Guide shell; 302. Contraction port; 303. Connecting seat; 304. Output bypass pipe; 305. Pressure relief bypass pipe; 306. Solenoid valve; 307. Rain cover; 308. Connecting piece; 309. Pushing... 310. Mechanical chamber; 311. Mud mixing mechanical chamber; 312. First inner support block; 313. Top cover; 314. Second inner support block; 315. Third inner support block; 316. Fourth inner support block; 317. Drive motor; 318. Driven synchronous pulley; 319. Synchronous belt; 320. Mud mixing motor; 321. Drive gear; 322. Support gear; 401. Splicing ring; 402. Driven gear ring; 403. Mud mixing turntable; 404. Extension arm; 405. Hanging ring; 406. Mud mixing chain; 407. Counterweight ball. Detailed Implementation
[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0023] Please see Figures 1-10 A water conservancy and hydropower sand flushing device, comprising: The negative pressure sludge pumping mechanism uses the kinetic energy of the sludge and water discharged from the gate to pump sludge and sand from a fixed point. The mud-pushing mechanism is located upstream of the negative pressure mud-pumping mechanism to assist the negative pressure mud-pumping mechanism in pushing mud and sand to a fixed point. A drive guiding mechanism, installed at the top of the sludge pushing mechanism, drives the sludge pushing mechanism and the sludge mixing mechanism to operate; and, The silt mixing mechanism is installed on the surface of the silt pushing mechanism to agitate the silt and sand accumulated on the bottom of the water around the silt pushing mechanism. By incorporating a negative pressure sludge pumping mechanism, a sludge pushing mechanism, a drive and guide mechanism, and a sludge mixing mechanism, the sludge mixing mechanism can agitate and disturb the sludge in a fixed area during use. In conjunction with the negative pressure sludge pumping mechanism, the kinetic energy of the gate and the sludge pushing mechanism are used to discharge the disturbed sludge, thereby significantly improving the sludge discharge effect in areas with insufficient water flow disturbance, such as the corners and dead water areas of the reservoir.
[0024] The negative pressure sludge removal mechanism includes: The gate guide bucket 101, the suction discharge pipe 102, and the bypass pipe 103 are used to guide the mud and water from the gate into the suction discharge pipe 102. The suction discharge pipe 102 is fixedly connected to the output end of the gate guide bucket 101 so that the kinetic energy of the mud and water discharged through the gate can generate a negative pressure suction effect. The bypass pipe 103 is integrally set on the top surface of the suction discharge pipe 102 to discharge the negative pressure generated by the flow of mud and water inside the suction discharge pipe 102.
[0025] The negative pressure sludge suction mechanism also includes: The mud conveying conduit 104 and the spiral reinforcing rib 105 are fixedly connected to one end of the bypass pipe 103 and are located above the gate guide bucket 101 to guide mud and water from a fixed position to the bypass pipe 103. At the same time, the mud conveying conduit 104 is exposed above the water surface under normal conditions to facilitate maintenance and repair. It also ensures that water will not leak through the mud conveying conduit 104 when the gate is closed and there is no suction negative pressure. The spiral reinforcing rib 105 is fixedly sleeved on the surface of the mud conveying conduit 104 to reinforce the mud conveying conduit 104. By using the gate guide bucket 101, suction discharge pipe 102, bypass pipe 103, mud conveying pipe 104 and spiral reinforcing rib 105, the power of the mud and water at the gate can be converted into negative pressure suction, thereby accurately forming negative pressure suction of silt at a fixed location.
[0026] The mud-pushing mechanism includes: The system includes a sediment pusher 201, a mounting base plate 202, a support plate 203, and an isolation screen plate 204. The sediment pusher 201 is located upstream of the gate guide bucket 101 to guide the surrounding sediment at a fixed point. The mounting base plate 202 is integrally set at the bottom of the sediment pusher 201 to assist in the installation of the sediment pusher 201. The support plate 203 is integrally set between the sediment pusher 201 and the mounting base plate 202 to provide support and reinforcement for the sediment pusher 201. The isolation screen plate 204 is fixedly connected to the inner wall of the sediment pusher 201 to filter the sediment entering the sediment pusher 201.
[0027] The mud-pushing mechanism also includes: The transmission main shaft 205, the mud-dispersing plate 206, and the spiral pusher plate 207 are connected to the inside of the mud-pushing cylinder 201 via bearings to transmit power to the mud-dispersing plate 206 and the spiral pusher plate 207. The mud-dispersing plate 206 is fixedly sleeved on the surface of the transmission main shaft 205 to further crush the mud and sand. The spiral pusher plate 207 is fixedly sleeved on the surface of the transmission main shaft 205 and is located below the mud-dispersing plate 206 to push the mud and sand upward. By using the mud and sand pushing cylinder 201, mounting base plate 202, support plate 203, isolation screen plate 204, transmission main shaft 205, mud stirring plate 206 and spiral pushing plate 207, the mechanical push of the spiral pushing plate 207 can assist the negative pressure mud pumping mechanism to improve the mud pushing effect during use, thereby discharging the fixed-point mud.
[0028] The driving and guiding mechanism includes: The system includes a flow guide shell 301, a contraction port 302, a docking seat 303, an output bypass pipe 304, a pressure relief bypass pipe 305, a solenoid valve 306, and a rain shield 307. The flow guide shell 301 is fixedly connected to the top of the sediment pushing cylinder 201. The contraction port 302 is located at the top of the flow guide shell 301 to narrow the flow path of the sediment. The docking seat 303 is integrally located at the top of the flow guide shell 301 to fix the first inner support block 311. The output bypass pipe 304 is integrally located at the docking seat. On one side of 303, and one end of the output bypass pipe 304 is fixedly connected to one end of the mud conveying pipe 104 to ensure mud and sand transportation. The pressure relief bypass pipe 305 is integrally set on the other side of the docking seat 303. The solenoid valve 306 is fixedly installed on one end of the pressure relief bypass pipe 305 to relieve pressure inside the mud conveying pipe 104 under normal conditions. The rain cover 307 is fixedly sleeved on the surface of the guide shell 301 to form protection above the driven toothed ring 402 and the mud stirring disc 403.
[0029] The driving guide mechanism also includes: The components include a connecting piece 308, a pushing mechanical chamber 309, a mud-stirring mechanical chamber 310, a first inner support block 311, and a top cover 312. The connecting piece 308 is fixedly connected to the top of the docking seat 303. The first inner support block 311 is fixedly connected to the inside of the connecting piece 308, and the inner wall of the first inner support block 311 is rotatably connected to the surface of the transmission main shaft 205 through a bearing to support the transmission main shaft 205. The pushing mechanical chamber 309 is integrally set on the lower surface of one end of the connecting piece 308 to protect the push motor 316. The mud-stirring mechanical chamber 310 is integrally set on the lower surface of the other end of the connecting piece 308 to protect the mud-stirring motor 320. The top cover 312 is fixedly connected to the top of the connecting piece 308 to protect the driving synchronous pulley 317, the driven synchronous pulley 318, and the synchronous belt 319.
[0030] The driving guide mechanism also includes: The system comprises a second inner support block 313, a third inner support block 314, a fourth inner support block 315, a drive motor 316, a driving synchronous pulley 317, a driven synchronous pulley 318, a synchronous belt 319, a mud-stirring motor 320, a drive gear 321, and a support gear 322. The second inner support block 313 and the third inner support block 314 are fixedly connected inside the pusher chamber 309 to support the drive motor 316 and the support gear 322, respectively. The fourth inner support block 315 is fixedly connected inside the mud-stirring chamber 310 to support the mud-stirring motor 320. The drive motor 316 is fixedly mounted on one side of the second inner support block 313 to drive the transmission main shaft 205 to rotate. The driving synchronous pulley 317 is fixed. Installed at the output end of the drive motor 316, the driven synchronous pulley 318 is fixedly sleeved on the surface of the transmission main shaft 205, and the synchronous belt 319 is installed between the drive synchronous pulley 317 and the driven synchronous pulley 318 to realize the transmission between the drive motor 316 and the transmission main shaft 205. The mud stirring motor 320 is fixedly installed on one side of the fourth inner support block 315 to drive the mud stirring turntable 403 to rotate. The drive gear 321 is fixedly installed at the output end of the mud stirring motor 320 to cooperate with the driven gear ring 402 to amplify the torque of the mud stirring motor 320 on the mud stirring turntable 403. The support gear 322 is rotatably connected to one side of the third inner support block 314 through a rotating shaft to support the driven gear ring 402. The system comprises a flow guide shell 301, a contraction port 302, a docking seat 303, an output bypass pipe 304, a pressure relief bypass pipe 305, a solenoid valve 306, a rain cover 307, a connecting piece 308, a pushing mechanical chamber 309, a mud-stirring mechanical chamber 310, a first inner support block 311, a top cover 312, a second inner support block 313, a third inner support block 314, a fourth inner support block 315, a drive motor 316, a driving synchronous pulley 317, a driven synchronous pulley 318, a synchronous belt 319, a mud-stirring motor 320, a drive gear 321, and a support gear 322. During use, the drive motor 316 and the mud-stirring motor 320 provide rotational power to the transmission main shaft 205 and the mud-stirring turntable 403, respectively.
[0031] The sludge mixing mechanism includes: The assembly includes a splicing ring 401, a driven gear ring 402, a mud-stirring turntable 403, and an extension arm 404. The splicing ring 401 is rotatably connected to the surface of the mud-pushing cylinder 201 via bearings to achieve synchronization between the driven gear ring 402 and the mud-stirring turntable 403. The driven gear ring 402 is fixedly sleeved on the surface of the splicing ring 401, and the surface of the driven gear ring 402 is meshed with the surfaces of the driving gear 321 and the support gear 322 respectively, so as to cooperate with the splicing ring 401 to realize the transmission between the mud-stirring motor 320 and the mud-stirring turntable 403. The mud-stirring turntable 403 is fixedly sleeved on the surface of the splicing ring 401. The extension arm 404 is integrally set on the surface of the mud-stirring turntable 403 to support the mud-stirring chain 406.
[0032] The sludge mixing mechanism also includes: The hanging ring 405, the mud stirring chain 406, and the counterweight ball 407 are fixedly connected to the bottom of the extension arm 404. The mud stirring chain 406 is sleeved on the bottom of the hanging ring 405 to disturb the silt at the bottom of the water. The counterweight ball 407 is fixedly connected to the bottom end of the mud stirring chain 406 to counterweight the mud stirring chain 406. By incorporating a splicing ring 401, a driven toothed ring 402, a mud-stirring turntable 403, an extension arm 404, a hanging ring 405, a mud-stirring chain 406, and a counterweight ball 407, the mud-stirring chain 406 can be used to agitate the water droplets and silt during operation, thereby facilitating the dispersion of silt into the water for pumping.
[0033] Working principle: During installation, the gate guide bucket 101 is installed at the gate, and the sediment pusher 201 is installed in the corners of the reservoir area, dead water areas, and other areas with insufficient water flow disturbance. This ensures that the highest point of the isolation screen plate 204 is slightly higher than the standard for the highest point of sediment accumulation, and that the isolation screen plate 204 is submerged below the water surface. During sand discharge, the solenoid valve 306 is closed, the gate is opened, and the drive motor 316 and the mud-stirring motor 320 are started. When the drive motor 316 starts, the power is transmitted to the transmission main shaft 205 through the drive synchronous pulley 317, the synchronous belt 319, and the driven synchronous pulley 318. The transmission main shaft 205 drives the mud-dispersing blade 206 and the spiral pusher blade 207 to rotate. At the same time, the mud-stirring motor 320 drives the drive gear 321 to rotate. The drive gear 321 drives the driven gear ring 402. The driven gear ring 402 drives the mud-stirring turntable 403 to rotate through the splicing ring 401. The mud-stirring turntable 403 drives the mud-stirring chain 406 and the counterweight ball 407 to rotate through the extension arm 404, so that the counterweight ball 407 and the mud-stirring chain 406 drag and disturb the mud and sand. When the sluice gate is opened, a large amount of mud and sand mixed with water is discharged from the sluice gate guide bucket 101 and the suction discharge pipe 102. When the mud and sand and water flow are discharged from the suction discharge pipe 102, the flow velocity at the bottom of the bypass pipe 103 increases, generating a suction negative pressure. This causes the mud and sand around the mud and sand pusher 201, which are disturbed by the counterweight ball 407 and the mud stirring chain 406, to mix with the water flow and be sucked into the mud and sand pusher 201. The sucked mud and sand are pushed upward by the rotating spiral pusher 207, thereby assisting the suction negative pressure to push the mud and sand mixture. When the mud and sand mixture is pushed to the position of the mud-dispersing stirring plate 206, it will be dispersed by the rotating mud-dispersing stirring plate 206, so that the mud and sand are further mixed for smoother transportation. Then the mud and sand mixture passes through the contraction port 302 and the output bypass pipe 304 into the mud conveying pipe 104, and then from the mud conveying pipe 104 into the bypass pipe 103, and finally into the suction discharge pipe 102 for discharge, thereby realizing the discharge of mud and sand from the corners and dead water areas of the reservoir.
[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A water conservancy and hydropower sand flushing device, characterized in that, include: The negative pressure sludge pumping mechanism uses the kinetic energy of the sludge and water discharged from the gate to pump sludge and sand from a fixed point. A mud-pushing mechanism is located upstream of the negative pressure mud-pumping mechanism to assist the negative pressure mud-pumping mechanism in pushing mud and sand to a fixed point. A drive flow guiding mechanism is installed at the top of the mud pushing mechanism to drive the mud pushing mechanism and the sludge mixing mechanism to operate; and, A sludge stirring mechanism is disposed on the surface of a sludge pushing mechanism to agitate the sludge and sand accumulated on the bottom of the water around the sludge pushing mechanism.
2. The water conservancy and hydropower sand flushing device according to claim 1, characterized in that, The negative pressure sludge pumping mechanism includes: The gate guide bucket (101), the suction discharge pipe (102), and the bypass pipe (103) are used to guide the mud and water from the gate into the suction discharge pipe (102). The suction discharge pipe (102) is fixedly connected to the output end of the gate guide bucket (101) so that the kinetic energy of the mud and water discharged through the gate can generate a negative pressure suction effect. The bypass pipe (103) is integrally set on the surface of the top of the suction discharge pipe (102) to discharge the negative pressure generated by the flow of mud and water inside the suction discharge pipe (102).
3. A water conservancy and hydropower sand flushing device according to claim 2, characterized in that, The negative pressure sludge pumping mechanism also includes: The mud conveying conduit (104) and the spiral reinforcing rib (105) are fixedly connected to one end of the bypass pipe (103) and the mud conveying conduit (104) is located above the gate guide bucket (101) to guide mud and water from a fixed position to the bypass pipe (103) while ensuring that the mud conveying conduit (104) is exposed above the water surface under normal conditions. The spiral reinforcing rib (105) is fixedly sleeved on the surface of the mud conveying conduit (104) to reinforce the mud conveying conduit (104).
4. A water conservancy and hydropower sand flushing device according to claim 2, characterized in that, The mud-pushing mechanism includes: The system comprises a sediment pusher (201), a mounting base plate (202), a support plate (203), and an isolation screen plate (204). The sediment pusher (201) is located upstream of the gate guide bucket (101) to guide the surrounding sediment at a fixed point. The mounting base plate (202) is integrally set at the bottom of the sediment pusher (201) to assist in the installation of the sediment pusher (201). The support plate (203) is integrally set between the sediment pusher (201) and the mounting base plate (202) to provide support and reinforcement for the sediment pusher (201). The isolation screen plate (204) is fixedly connected to the inner wall of the sediment pusher (201) to filter the sediment entering the sediment pusher (201).
5. A water conservancy and hydropower sand flushing device according to claim 4, characterized in that, The mud-pushing mechanism also includes: The system includes a drive shaft (205), a mud-dispersing plate (206), and a spiral pusher plate (207). The drive shaft (205) is rotatably connected to the inside of the mud-pushing cylinder (201) via bearings to transmit power to the mud-dispersing plate (206) and the spiral pusher plate (207). The mud-dispersing plate (206) is fixedly sleeved on the surface of the drive shaft (205) to further crush the mud and sand. The spiral pusher plate (207) is fixedly sleeved on the surface of the drive shaft (205) and is located below the mud-dispersing plate (206) to push the mud and sand upward.
6. A water conservancy and hydropower sand flushing device according to claim 5, characterized in that, The driving and guiding mechanism includes: The system comprises a flow guide shell (301), a contraction port (302), a docking seat (303), an output bypass pipe (304), a pressure relief bypass pipe (305), a solenoid valve (306), and a rain shield (307). The flow guide shell (301) is fixedly connected to the top of the sediment pusher (201). The contraction port (302) is located at the top of the flow guide shell (301) to contract the flow path of the sediment. The docking seat (303) is integrally located at the top of the flow guide shell (301) to fix the first inner support block (311). The output bypass pipe (304) is integrally located. On one side of the docking seat (303), and one end of the output bypass pipe (304) is fixedly connected to one end of the mud conveying pipe (104) to ensure mud and sand transportation. The pressure relief bypass pipe (305) is integrally set on the other side of the docking seat (303). The solenoid valve (306) is fixedly installed at one end of the pressure relief bypass pipe (305) to relieve pressure inside the mud conveying pipe (104) under normal conditions. The rain cover (307) is fixedly sleeved on the surface of the guide shell (301) to form protection above the driven toothed ring (402) and the mud stirring turntable (403).
7. A water conservancy and hydropower sand flushing device according to claim 6, characterized in that, The drive flow guiding mechanism further includes: The components include a connecting piece (308), a pushing mechanical chamber (309), a mud-stirring mechanical chamber (310), a first inner support block (311), and a top cover (312). The connecting piece (308) is fixedly connected to the top of the docking seat (303). The first inner support block (311) is fixedly connected to the inside of the connecting piece (308), and the inner wall of the first inner support block (311) is rotatably connected to the surface of the transmission main shaft (205) through a bearing to support the transmission main shaft (205). The pushing mechanical chamber (309) is integrally disposed on the lower surface of one end of the connecting piece (308) to protect the pushing motor (316). The mud-stirring mechanical chamber (310) is integrally disposed on the lower surface of the other end of the connecting piece (308) to protect the mud-stirring motor (320). The top cover (312) is fixedly connected to the top of the connecting piece (308) to protect the driving synchronous pulley (317), the driven synchronous pulley (318), and the synchronous belt (319).
8. A water conservancy and hydropower sand flushing device according to claim 7, characterized in that, The drive flow guiding mechanism further includes: The system comprises a second inner support block (313), a third inner support block (314), a fourth inner support block (315), a drive motor (316), a driving synchronous pulley (317), a driven synchronous pulley (318), a synchronous belt (319), a mud-stirring motor (320), a drive gear (321), and a support gear (322). The second inner support block (313) and the third inner support block (314) are both fixedly connected inside the pusher chamber (309) to support the drive motor (316) and the support gear (322) respectively. The fourth inner support block (315) is fixedly connected inside the mud-stirring chamber (310) to support the mud-stirring motor (320). The drive motor (316) is fixedly installed on one side of the second inner support block (313) to drive the transmission main shaft (205) to rotate. The driving synchronous pulley (317) is fixedly connected to the pusher chamber (309) to support the drive motor (316) and the drive synchronous pulley (318). The drive synchronous pulley (319 ... The driven synchronous pulley (318) is fixedly installed at the output end of the drive motor (317) and the driven synchronous pulley (318) to realize the transmission between the drive motor (316) and the transmission main shaft (205). The mud-stirring motor (320) is fixedly installed on one side of the fourth inner support block (315) to drive the mud-stirring turntable (403) to rotate. The drive gear (321) is fixedly installed at the output end of the mud-stirring motor (320) to cooperate with the driven gear ring (402) to amplify the torque of the mud-stirring motor (320) on the mud-stirring turntable (403). The support gear (322) is rotatably connected to one side of the third inner support block (314) through a rotating shaft to support the driven gear ring (402).
9. A water conservancy and hydropower sand flushing device according to claim 4, characterized in that, The sludge mixing mechanism includes: The assembly includes a splicing ring (401), a driven gear ring (402), a mud-stirring turntable (403), and an extension arm (404). The splicing ring (401) is rotatably connected to the surface of the mud-pushing cylinder (201) via a bearing to achieve synchronization between the driven gear ring (402) and the mud-stirring turntable (403). The driven gear ring (402) is fixedly sleeved on the surface of the splicing ring (401), and the surface of the driven gear ring (402) is meshed with the surface of the driving gear (321) and the surface of the support gear (322) respectively, so as to cooperate with the splicing ring (401) to realize the transmission between the mud-stirring motor (320) and the mud-stirring turntable (403). The mud-stirring turntable (403) is fixedly sleeved on the surface of the splicing ring (401). The extension arm (404) is integrally set on the surface of the mud-stirring turntable (403) to support the mud-stirring chain (406).
10. A water conservancy and hydropower sand flushing device according to claim 9, characterized in that, The sludge mixing mechanism also includes: The attachment ring (405), the mud-stirring chain (406), and the counterweight ball (407) are fixedly connected to the bottom of the extension arm (404), the mud-stirring chain (406) is sleeved on the bottom of the attachment ring (405) to agitate the silt at the bottom of the water, and the counterweight ball (407) is fixedly connected to the bottom end of the mud-stirring chain (406) to counterweight the mud-stirring chain (406).