Water turbine with inlet diffusion type sand settling device
Technical Field
The invention belongs to the technical field of power generation of water turbines, and particularly relates to a water turbine with an inlet diffusion type sand settling device.
Background
The hydraulic turbine is a power machine converting energy of water flow into rotary mechanical energy, and belongs to turbine machinery in fluid machinery, its rotating wheel is impacted by water flow and rotated, in the course of working, the pressure of water flow is unchanged, mainly is conversion of kinetic energy, the impact hydraulic turbine can be divided into two types of tangential-impact type and oblique-impact type according to the flow direction of water flow, the structure of oblique-impact hydraulic turbine is basically identical to that of water bucket type hydraulic turbine, only the jet direction has an inclination angle, and is usually only used for small-sized machine set, and the rotating wheel is rotated by reaction force of water flow in water, and in the course of working, both pressure energy and kinetic energy of water flow are changed, but mainly is conversion of pressure energy.
Chinese patent CN111255609B discloses a channel vortex type power generation and sand discharge device and power generation method, the device includes a volute, a sand discharge funnel, a power generator and a water turbine, one side of the volute is connected with a water inlet channel, one side of the volute tangential to the direction of the water inlet channel is provided with an overflow trough, one end of the overflow trough is provided with a water inlet pipe, the water inlet pipe is connected with a cavity where the overflow trough and the water turbine are located, the sand discharge funnel is fixedly installed at the bottom of the volute, the upper end of the sand discharge funnel is provided with a steady flow cylinder, the power generator is fixedly installed on the steady flow cylinder, the water turbine is installed at the lower end of the power generator through a transmission shaft, the power generation method is that sediment-containing water flow realizes sediment and water separation in the volute, sediment flows away from the sand discharge blind canal, and clean water flows into the overflow trough, and potential energy of water is converted into electric energy through the water inlet pipe to the water turbine.
When the existing water turbine is used, if the existing water turbine is a small and medium-sized water turbine, sand and stone in water flow and the like have the possibility of damaging structures such as blades and pipelines of the water turbine, so that sediment needs to be initially precipitated and is discharged independently at a water inlet position of the water turbine, water needs to be kept stand during precipitation, sand discharge equipment with higher power is also needed, and a larger optimization space is provided;
based on the above mentioned situation, we find that the water turbine in the prior art is difficult to avoid the above problems at the same time, so we propose a water turbine with an inlet diffusion type sand settling device, which reduces the usage amount of high-power electric appliances, reduces the standing requirement of the structure for sand and stone discharge, and optimizes the sand discharge effect.
Disclosure of Invention
The invention aims at the existing water turbine with the inlet diffusion sand setting device, and has the advantages of reducing the use amount of high-power electric appliances, reducing the standing requirement of the structure for sand and stone discharge, and optimizing the sand discharging effect.
The technical aim of the invention is achieved by the following technical scheme that the hydraulic turbine with the inlet diffusion sand settling device comprises a main machine, wherein a drop pipe is arranged on the right side of the main machine, a water passing tank is arranged on the right side of the drop pipe, a connecting dam is arranged on the right side of the water passing tank, a sand discharging pipe is arranged at the bottom of the connecting dam, and the bottom of the water passing tank is communicated with the sand discharging pipe;
The water passing tank comprises a pear-shaped tank, a water rotating tank is arranged on the inner side of the pear-shaped tank, an inclined plate is bolted to the inner wall of the pear-shaped tank, an integrally formed sand accumulating section is arranged at the bottom of the pear-shaped tank, a sand falling section is arranged at the bottom of the water rotating tank, a hydraulic cylinder is arranged on the inner side of the inclined plate, the left side of the sand accumulating section is communicated with the bottom of the sand falling section, a bottom plug is arranged at the bottom of the inner side of the sand falling section, a blocking piece is arranged at the bottom of the sand accumulating section, the top of the blocking piece is bolted to the telescopic end of the hydraulic cylinder, a connecting rod is bolted to the left side of the hydraulic cylinder, the bottom of the connecting rod is bolted to the bottom plug, and a flow blocking plate is bolted to the bottom of the inner wall of the pear-shaped tank;
The connecting dam comprises a dam body, a partition plate is arranged on the inner side of the dam body, an arc-shaped indent is formed in the bottom of the partition plate, a water passing plate is bolted to the top of the partition plate, a bottom building section is arranged at the bottom of the dam body, two inclined planes forming a bucket shape are formed in the left side of the bottom building section, an arc-shaped inclined plane is formed in the right side of the bottom building section, and an impact pier is arranged on the inner side of the dam body.
By adopting the technical proposal, the host machine is arranged as the water-wheel generating equipment, the arranged drop pipe is positioned at the lower water level between the host machine and the sand-settling structure compared with the sand-settling structure, so that the consumption of potential energy of water flow can be reduced, so that the water after sand deposition can keep larger kinetic energy to enter the host machine, the water flow can enter the inside of the connecting dam after passing through the river channel, and the water flow smoothly enters the sand sedimentation tank along the diffusion type dam body, thereby reducing turbulence of the water flow, being beneficial to sedimentation of sediment, the water flow can enter the bottom of the partition plate after being guided by the bottom building section and the arc-shaped part of the partition plate, wherein most sand and stones can strike the arc-shaped concave outside of the partition plate and the outer side of the striking pier and fall into the sand discharge pipe along the bucket-shaped inner wall, water after primary sand removal can flow into the water tank, flows into the pear-shaped tank under the limit of the inclined plate, is in a state of full water in the interior in normal state because the pear-shaped tank has lower level, and falls into the sand accumulation section because of heavier water flow after being stood for a short time, and is blocked by the baffle plate, water flow can continue to flow and enter the water swirl pot from the opening of the water swirl pot, vortex can be generated when the stirring shaft rotates, residual sediment in water has larger density due to centrifugal trend, therefore, the sand-accumulating section and the sediment-rich water flow in the sand-accumulating section are discharged into the sand-discharging pipe together, and the water flow in the sand-discharging pipe can be broken at the same time, the sediment-rich water flow in the sediment discharge pipe directly discharges the sediment to the low water level area together when the sediment-rich water flow in the sediment discharge pipe normally flows, and water with less relative impurities in the vertical tank can be supplied to the host machine through the output section and the drop pipe.
The invention further provides that the water swirling tank comprises a vertical tank, the top of the vertical tank is provided with an integrally formed sealing section, the outer side of the sealing section is bolted with the pear-shaped tank, the inner side of the sealing section is rotationally connected with a stirring shaft, the left side of the vertical tank is provided with an output section, and the left side of the output section is communicated with the left side of the pear-shaped tank.
By adopting the technical scheme, through setting up perpendicular jar cooperation seal segment, seal segment is used for fixing and spacing the (mixing) shaft, in the (mixing) shaft pivoted with stirring the inside rivers of perpendicular jar keep rotatory constantly and produce the swirl, make the silt in the rivers subside along the inner wall of perpendicular jar.
The dam is further provided with a driving shaft rotatably connected to the inner side of the dam body, a wheel disc is bolted to the outer side of the driving shaft, water vanes are bolted between two adjacent wheel discs, and overflow grooves are formed in the inner side of the water passing plate.
By adopting the technical scheme, through setting up driving shaft cooperation rim plate, can promote the turbine bucket and rim plate along the driving shaft rotation when rivers flow down along the overflow launder from the high water level area in the right side of water board to play the effect that the drive structure starts, can play energy-conserving effect simultaneously.
The invention is further characterized in that the rear side of the top of the stirring shaft is in transmission connection with a transmission shaft, and the right side of the transmission shaft is in transmission connection with the driving shaft.
By adopting the technical scheme, the stirring shaft is driven to rotate by the position of the driving shaft, which is used for transmitting the power of the driving shaft to the stirring shaft, so as to provide power for stirring.
The stirring shaft is further characterized in that the outer side of the top of the stirring shaft and the front side of the driving shaft are respectively provided with a bevel gear, the two bevel gears are in meshed connection, the outer side of the driving shaft is rotatably connected with a shaft bracket, the rear side of the surface of the driving shaft and the rear side of the driving shaft are respectively provided with a chain wheel, and the two chain wheels are in transmission connection through a chain.
By adopting the technical scheme, through the arrangement of the chain wheel, the power of the driving shaft can be remotely transmitted to the position of the transmission shaft after the chain is installed, and the output direction is changed in the meshing of the bevel gears and is transmitted to the stirring shaft.
The invention is further provided with the impact plates on the right sides of the partition plate and the bottom building section, and a coarse mesh is arranged between the two impact plates.
By adopting the technical scheme, through setting up the striking board, can contact with the striking board when rivers are urgent or impurity is too much in order to avoid the structure to become the damage, thick mouthful of net can intercept jumbo size impurity.
The invention is further characterized in that springs are bolted to the right sides of the partition plate and the bottom building section, the right sides of the springs and the impact plate are bolted, and a drainage groove is formed in the inner side of the partition plate.
By adopting the technical scheme, through setting up spring cooperation striking board, the spring can take place to deform in order to cushion striking board when striking board bears the striking, provides the space of striking board displacement simultaneously, and the water drainage tank of setting is used for the water discharge that will promote the hydrofoil.
The invention is further arranged that the right sides of the partition plate and the bottom building section are respectively bolted with a telescopic rod, and the right sides of the telescopic rods and the impact plate are bolted.
By adopting the technical scheme, the telescopic rod is used for limiting the moving position of the impact plate, so that the impact plate can only move horizontally after being stressed, and water between the partition plate and the bottom building section and the impact plate can be pushed during horizontal movement, so that the impact plate is discharged, and the damping buffer effect is achieved.
The invention is further characterized in that an auxiliary frame is bolted to the inner wall of the sand falling section, the inner side of the auxiliary frame is rotationally connected with the stirring shaft, and a water guide sheet is arranged on the inner wall of the vertical tank.
By adopting the technical scheme, the bottom of the stirring shaft can be conveniently supported by the auxiliary frame, and the condition that the stirring shaft is eccentrically rotated or deformed when the stirring shaft is lack of maintenance during long-time operation is avoided.
The invention is further characterized in that the inner side of the inclined plate is provided with a device shell, the inner side of the device shell is fixedly connected with the hydraulic cylinder, the bottom of the pear-shaped tank is provided with a synchronous frame, two sides of the synchronous frame are respectively communicated with the sand falling section and the sand accumulating section, and the synchronous frame is arranged on the outer side of the connecting rod.
By adopting the technical scheme, the hydraulic cylinder can be conveniently installed and protected by arranging the equipment shell, and the arranged synchronous frame is used for providing a space for the vertical movement of the connecting rod.
In summary, the invention has the following beneficial effects:
through setting up the host computer as hydroelectric power generation equipment, the drop pipe that sets up is located the consumption to rivers potential energy in host computer and sediment structure relatively lower department of setting up the sediment structure, links up the turbulent fluctuation that the dam reduces the rivers, is favorable to sedimentation of silt, and carry out preliminary sediment emission to the grit, pear-shaped jar is used for carrying out further silt to rivers and gets rid of, carries out further subsidence to the silt of rivers with high density through the centrifugation simultaneously, and in the sediment tube is discharged into in unison, the in-process reduces the demand to the electric energy, has reduced the demand to standing simultaneously.
Drawings
FIG. 1 is a schematic diagram of the main structure of the present invention;
FIG. 2 is a schematic view of a junction dam according to the present invention;
FIG. 3 is a schematic view of the internal structure of the present invention;
FIG. 4 is a rear structural schematic view of the present invention;
FIG. 5 is a schematic view of the structure of the water whirlpool tank of the present invention;
FIG. 6 is an internal schematic view of the body structure of the present invention;
FIG. 7 is a schematic view of the structure of the water tank of the present invention;
FIG. 8 is a schematic view of the structure of the separator of the present invention;
FIG. 9 is a schematic view of the structural mounting location of the present invention;
fig. 10 is an enlarged view of a portion of fig. 6 a in accordance with the present invention.
The reference numerals are 1, a main machine, 2, a drop pipe, 3, a water passing tank, 301, a pear-shaped tank, 302, a rotary water tank, 302a, a vertical tank, 302b, a sealing section, 302c, a stirring shaft, 302d, an output section, 303, an inclined plate, 304, a sand accumulating section, 305, a sand dropping section, 306, a hydraulic cylinder, 307, a bottom plug, 308, a blocking sheet, 309, a connecting rod, 310, a baffle plate, 4, a connecting dam, 401, a dam body, 402, a baffle plate, 403, a water passing plate, 404, a bottom building section, 405, an impact pier, 5, a sand discharging pipe, 6, a driving shaft, 7, a wheel disc, 8, a water leaf, 9, an overflow groove, 10, a transmission shaft, 11, a conical gear, 12, a shaft bracket, 13, a chain wheel, 14, an impact plate, 15, a coarse mesh, 16, a spring, 17, a water discharging groove, 18, a telescopic rod, 19, a water guiding sheet, 20, a device housing, 21, a synchronous frame, 22 and an auxiliary frame.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1:
Referring to fig. 1 to 10, a water turbine with an inlet diffusion sand settling device comprises a main machine 1, wherein a drop pipe 2 is arranged on the right side of the main machine 1, a water passing tank 3 is arranged on the right side of the drop pipe 2, a connecting dam 4 is arranged on the right side of the water passing tank 3, a sand discharging pipe 5 is arranged at the bottom of the connecting dam 4, and the bottom of the water passing tank 3 is communicated with the sand discharging pipe 5;
The connecting dam 4 comprises a dam body 401, a partition plate 402 is arranged on the inner side of the dam body 401, an arc-shaped indent is arranged at the bottom of the partition plate 402, a water passing plate 403 is bolted to the top of the partition plate 402, a bottom building section 404 is arranged at the bottom of the dam body 401, two inclined planes forming a bucket shape are arranged on the left side of the bottom building section 404, an impact pier 405 is arranged on the inner side of the dam body 401, a host 1 is arranged as a hydroelectric power generation device, a drop pipe 2 is arranged between the host 1 and a sand setting structure and is located at a lower water level than the sand setting structure, consumption of potential energy of water flow can be reduced, so that water after sand setting can keep larger kinetic energy to enter the host 1, water flow can enter the inside of the connecting dam 4 after passing through a river channel, and can smoothly enter a sand setting pond along the diffusion type dam body 401, turbulence of water flow is reduced, sedimentation is facilitated, the water flow can enter the bottom of the partition plate 402 after being guided by the arc-shaped sections 404 and the arc-shaped portions of the partition plate 402, wherein most of the water flow can impact the arc-shaped indent of the partition plate 402 and the outer side of the impact pier 405 can be reduced, and water can flow into the water tank 5 after flowing down along the inner wall of the sand setting pipe 3 and flow into the sand setting tank.
As shown in fig. 3, the inner side of the dam 401 is rotatably connected with a driving shaft 6, the outer side of the driving shaft 6 is bolted with a wheel disc 7, a water blade 8 is bolted between two adjacent wheel discs 7, the inner side of the water passing plate 403 is provided with an overflow groove 9, the driving shaft 6 is matched with the wheel disc 7, and when water flows down along the overflow groove 9 from the right high water level area of the water passing plate 403, the water blade 8 and the wheel disc 7 are pushed to rotate along the driving shaft 6, so that the effect of starting a driving structure is achieved, and meanwhile, the energy-saving effect can be achieved.
As shown in fig. 6, the right sides of the partition 402 and the bottom masonry section 404 are respectively provided with an impact plate 14, a coarse mesh 15 is installed between the two impact plates 14, and by arranging the impact plates 14, the coarse mesh 15 can intercept large-size impurities when water flows are urgent or impurities are too much and can be contacted with the impact plates 14 so as to avoid damage to the structure.
As shown in fig. 6, the right sides of the partition plate 402 and the bottom masonry section 404 are both bolted with a spring 16, the right side of the spring 16 and the impact plate 14 are bolted, the inner side of the partition plate 402 is provided with a drainage groove 17, by arranging the spring 16 to match with the impact plate 14, the spring 16 deforms to buffer the impact plate 14 when the impact plate 14 is impacted, meanwhile, a space for displacement of the impact plate 14 is provided, and the drainage groove 17 is used for draining water pushing the water blade 8.
As shown in fig. 6, the right sides of the partition plate 402 and the bottom masonry section 404 are respectively bolted with a telescopic rod 18, and the right sides of the telescopic rods 18 and the impact plate 14 are bolted, so that the movement positions of the impact plate 14 are limited by arranging the telescopic rods 18, and the impact plate can only move horizontally after being stressed, and water between the partition plate 402 and the bottom masonry section 404 and the impact plate 14 can be pushed to be discharged during horizontal movement, so that the damping and buffering effects are achieved.
The use process is briefly described that firstly, when the sand sedimentation device is used, water flows firstly enter the connecting dam 4 after passing through a river channel, water flows smoothly enter a sand sedimentation tank along a diffusion type dam 401, turbulence of the water flows is reduced, sedimentation of sediment is facilitated, water flows enter the bottom of the partition plate 402 after being guided by the bottom masonry section 404 and the arc-shaped part of the partition plate 402, most sand and stone can strike the arc-shaped concave outside of the partition plate 402 and the outer side of the impact pier 405, and fall into the sand discharge pipe 5 along the bucket-shaped inner wall, water after primary sand removal flows into the water tank 3, the driving shaft 6 is matched with the wheel disc 7, the water leaves 8 and the wheel disc 7 are pushed to rotate along the driving shaft 6 when the water flows down along the overflow groove 9 from the right side high water level area of the water passing plate 403, consumption of potential energy of the water can be reduced when the set up drop pipe 2 is positioned at a lower water level between the host 1 and the sand sedimentation structure than the sand sedimentation structure, and the kinetic energy of the water after sand sedimentation can be kept to be larger into the host 1.
Example 2:
Referring to fig. 1-7, a water turbine with an inlet diffusion sand setting device comprises a main machine 1, wherein a drop pipe 2 is arranged on the right side of the main machine 1, a water passing tank 3 is arranged on the right side of the drop pipe 2, a connecting dam 4 is arranged on the right side of the water passing tank 3, a sand discharging pipe 5 is arranged at the bottom of the connecting dam 4, and the bottom of the water passing tank 3 is communicated with the sand discharging pipe 5;
The water passing tank 3 comprises a pear-shaped tank 301, a water rotating tank 302 is arranged on the inner side of the pear-shaped tank 301, an inclined plate 303 is bolted to the inner wall of the pear-shaped tank 301, an integrally formed sand accumulating section 304 is arranged at the bottom of the pear-shaped tank 301, a sand falling section 305 is arranged at the bottom of the water rotating tank 302, a hydraulic cylinder 306 is arranged on the inner side of the inclined plate 303, the left side of the sand accumulating section 304 is communicated with the bottom of the sand falling section 305, a bottom plug 307 is arranged at the bottom of the inner side of the sand falling section 305, a blocking piece 308 is arranged at the bottom of the sand accumulating section 304, the top of the blocking piece 308 is bolted to the telescopic end of the hydraulic cylinder 306, a connecting rod 309 is bolted to the left side of the hydraulic cylinder 306, the bottom of the connecting rod 309 is bolted to the bottom plug 307, and a flow blocking plate 310 is bolted to the bottom of the inner wall of the pear-shaped tank 301;
The water after the primary sand removal flows into the water tank 3, flows into the pear-shaped tank 301 under the limit of the inclined plate 303, is in an internal full water state in a normal state because the level of the pear-shaped tank 301 is low, and falls into the sand accumulation section 304 after being temporarily kept still because of heavy weight, is blocked by the baffle plate 310, flows continuously, and flows into the water tank 302 from the opening of the water tank 302, eddies are generated when the stirring shaft 302c rotates, residual sediment in the water can have a high density due to the centrifugal tendency, and can sink into the sand falling section 305 along the inner wall, then the periodically started hydraulic cylinder 306 can synchronously lift the blocking piece 308 and the bottom plug 307 through the connecting rod 309, so that the sediment accumulation section 304 and the sediment-rich water flow in the sand falling section 305 can be discharged into the sand discharge pipe 5 together, meanwhile, the water flow in the sand discharge pipe 5 can be broken, the sediment is directly discharged into a low water level area together when the sediment-rich water flow in the sand discharge pipe 5 normally, and the water with relatively little impurities in the vertical tank 302a can be supplied to the host machine 1 through the output section 302 d.
As shown in fig. 7, the water swirling tank 302 includes a vertical tank 302a, the top of the vertical tank 302a is provided with an integrally formed sealing section 302b, the outer side of the sealing section 302b is bolted to the pear-shaped tank 301, the inner side of the sealing section 302b is rotatably connected with a stirring shaft 302c, the left side of the vertical tank 302a is provided with an output section 302d, the left side of the output section 302d is communicated with the left side of the pear-shaped tank 301, by arranging the vertical tank 302a to be matched with the sealing section 302b, the sealing section 302b is used for fixing and limiting the stirring shaft 302c, and the stirring shaft 302c rotates while continuously stirring the water flow in the vertical tank 302a and generates vortex, so that sediment in the water flow sinks along the inner wall of the vertical tank 302 a.
As shown in fig. 4, a transmission shaft 10 is drivingly connected to the rear side of the top of the stirring shaft 302c, the right side of the transmission shaft 10 is drivingly connected to the driving shaft 6, and the stirring shaft 302c is driven to rotate by providing the transmission shaft 10 for transmitting the power of the driving shaft 6 to the position of the stirring shaft 302c to power stirring.
As shown in fig. 2, the outside at the top of the stirring shaft 302c and the front side of the driving shaft 10 are both provided with a bevel gear 11, the two bevel gears 11 are engaged and connected, the outside of the driving shaft 10 is rotationally connected with a shaft bracket 12, the rear side of the surface of the driving shaft 10 and the rear side of the driving shaft 6 are both provided with chain wheels 13, the two chain wheels 13 are connected through chain transmission, the power of the driving shaft 6 can be remotely transmitted to the position of the driving shaft 10 after the chain is installed through arranging the chain wheels 13, and the output direction is changed by the engagement of the bevel gears 11 and is transmitted to the stirring shaft 302 c.
As shown in fig. 7, the auxiliary frame 22 is bolted to the inner wall of the sand falling section 305, the inner side of the auxiliary frame 22 is rotatably connected with the stirring shaft 302c, the water guide sheet 19 is mounted on the inner wall of the vertical tank 302a, and the bottom of the stirring shaft 302c can be conveniently supported by arranging the auxiliary frame 22, so that the condition that the stirring shaft is eccentrically rotated or deformed when the stirring shaft is lack of maintenance during long-time operation is avoided.
As shown in fig. 6, the inner side of the inclined plate 303 is provided with a device shell 20, the inner side of the device shell 20 is fixedly connected with a hydraulic cylinder 306, the bottom of the pear-shaped tank 301 is provided with a synchronous frame 21, two sides of the synchronous frame 21 are respectively communicated with a sand falling section 305 and a sand accumulating section 304, the synchronous frame 21 is arranged on the outer side of a connecting rod 309, the hydraulic cylinder 306 can be conveniently installed and protected by arranging the device shell 20, and the arranged synchronous frame 21 is used for providing a space for the vertical movement of the connecting rod 309.
During use, water after primary sand removal by the connecting dam 4 flows into the water passing tank 3, flows into the pear-shaped tank 301 under the limit of the inclined plate 303, is in an internal full water state in a normal state because the pear-shaped tank 301 is low in horizontal height, is placed in the sand accumulation section 304 after being temporarily left standing and is blocked by the baffle plate 310, water flows continuously and enters the water passing tank from the opening of the water rotating tank 302, eddies are generated when the stirring shaft 302c rotates, residual sediment in the water can sink into the sand falling section 305 along the inner wall because of high density of the stirring shaft 302c, then the blocking piece 308 and the bottom plug 307 are lifted synchronously by the connecting rod 309, so that the sediment-rich water flow in the sand accumulation section 304 and the sand falling section 305 can be discharged into the sand discharging pipe 5 together, the sediment-rich water flow in the sand discharging pipe 5 can be broken, the sediment is directly discharged to a low water level area when the sediment-rich water flow in the sand discharging pipe 5 normally, and the residual sediment in the water can be supplied to the main machine 2 through the impurity outlet section 302d relatively to the power generation main machine through the impurity 1.
The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and modifications to the present embodiment, which may not creatively contribute to the present invention as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present invention.