CN210164570U

CN210164570U - Hydroelectric generating set structure for recycling tail water of power station

Info

Publication number: CN210164570U
Application number: CN201920709122.6U
Authority: CN
Inventors: 马金璐; 石琛
Original assignee: Tianjin Tianfa General Plant Electrical And Mechanical Equipment Co ltd
Current assignee: Tianjin Tianfa General Plant Electrical And Mechanical Equipment Co ltd
Priority date: 2019-05-17
Filing date: 2019-05-17
Publication date: 2020-03-20
Anticipated expiration: 2029-05-17

Abstract

The utility model discloses a power station tail water reuse hydroelectric set structure, including the tailrace, the both sides of tailrace all are equipped with the dyke, and wherein one side dyke is equipped with two openings, and one of them opening internal fixation has U type frame, be equipped with flow control device on the U type frame, the tailrace is connected with first subchannel through one of them opening, the one end of first subchannel is connected with the second subchannel, the second subchannel is connected in one side of tailrace through another opening, the both sides of second subchannel all are equipped with guide rail and two supporting shoes. The utility model discloses the structure is reasonable, the size of regulation tail water flow that can be nimble, guarantees to make the generating efficiency maximize in the bearing range of the hydraulic turbine, and the installation method is simple, and the peripheral fish can effectively be kept apart in still convenient to daily overhaul and maintenance, has protected ecological environment, and can effectually protect the hydraulic turbine, has prolonged the life of device, is worth promoting.

Description

Hydroelectric generating set structure for recycling tail water of power station

Technical Field

The utility model relates to a hydroelectric set technical field especially relates to a power station tail water reuse hydroelectric set structure.

Background

With the consumption of non-renewable energy, the environment protection is vigorously developed, renewable energy is an energy strategy which is highly regarded and actively supported by the state, the state highly pays attention to hydropower construction, in recent decades, 46700 dam-type hydropower stations with different sizes are built, however, the negative effect of the dam-type hydropower station seriously affects the original natural ecological environment, and from the viewpoint of customer, the site selection resource of the dam-type hydropower station which is available at present is basically exhausted, therefore, the state strictly controls the newly built dam-type hydropower station, in addition, because the dam-type hydropower station seriously affects the natural ecological environment, how to develop a novel low-head hydropower station on the condition of not building the dam-type hydropower station becomes the inevitable direction and the important trend of new development, the dam-type hydropower station mostly adopts the high-head form for power generation, and the byproduct of the dam-type hydropower station, namely a large amount of tail water after power generation, is directly discharged, therefore, extremely precious water energy resources are wasted, and the tail water also contains huge and inexhaustible energy and has high recycling value, so that some power generation devices for realizing secondary power generation by utilizing the tail water appear.

Current tail water utilizes secondary power generation set often the volume less, and adopt fixed knot to construct, be difficult to remove after the installation is accomplished, it is comparatively difficult to maintain and overhaul, the size of tail water flow is not convenient for adjust when using still, if tail water flow is too big, there is the dangerous problem such as being washed out, current power generation set outside does not have protective equipment, influence loss such as weather and people is accelerated, service life has been shortened, and power generation set can threaten the existence of peripheral fish when the function, there is the ecological balance ecological problem of destruction, for this reason, we have provided a power station tail water reuse hydroelectric set structure and have solved above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a generating station tail water recycling hydroelectric generating set structure.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a hydroelectric generating set structure for recycling tail water of a power station comprises a tail water channel, wherein two sides of the tail water channel are respectively provided with a dike, one side of the dike is provided with two openings, one opening is internally fixed with a U-shaped frame, the U-shaped frame is provided with a flow control device, the tail water channel is connected with a first branch channel through one opening, one end of the first branch channel is connected with a second branch channel, the second branch channel is connected with one side of the tail water channel through the other opening, two sides of the second branch channel are respectively provided with a guide rail and two supporting blocks, the upper ends of the supporting blocks are fixedly provided with bearing rods, the upper ends of the four bearing rods are jointly fixedly provided with a bearing frame, the upper end of the bearing frame is provided with a moving device, the upper end of the guide rail is provided with two sliding grooves, the sliding grooves are internally provided with a protection device, and the side walls at the, and a volute is arranged on the water turbine.

Preferably, the flow control device is including fixing the headstock gear in U type frame upper end, all be equipped with the sliding tray on the relative lateral wall in the U type frame, install the flashboard jointly in two sliding trays, the upper end of flashboard is fixed with two hangers, rotates through the inserted bar between two hangers to be connected with the connecting block, the upper end of connecting block is rotated and is connected with the lead screw, the upper end of lead screw runs through U type frame and installs to the headstock gear in.

Preferably, the mobile device is including setting up the removal horizontal platform in the carriage upper end, the upper end both sides of carriage all are equipped with the shifting chute, the lower extreme both sides of removing the horizontal platform all are equipped with two and remove the wheel, and the lower extreme of four removal wheels is contradicted in the bottom of shifting chute, remove the lower extreme of horizontal platform and install electric block, electric block's lower extreme is connected with the lifting hook through wire rope.

Preferably, protector is including setting up two guard boxes in two guide rail upper ends, the lower extreme both sides of guard box all are equipped with two gyro wheels, and two gyro wheels with one side are corresponding with the spout, and all contradict in corresponding spout bottom with the lower extreme of two gyro wheels of one side.

Preferably, both sides of guard box all are fixed with the fixed block, one side of fixed block is equipped with the through-hole, and just two through-holes of same side are corresponding.

Preferably, both sides of one end of one of the protection boxes are provided with limit grooves, both sides of one end of the other protection box are provided with limit blocks, and the limit blocks on the same side correspond to the limit grooves.

Preferably, the water turbine is an axial flow Kaplan turbine.

Preferably, the bottom of the first branch channel is 4-5m higher than the bottom of the second branch channel.

Preferably, a filter plate is installed at one side of the U-shaped frame.

Preferably, the protection box and the fixing block are integrally formed, and the protection box and the fixing block are both made of high manganese steel materials.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the bearing rod, the bearing frame, the movable transverse table, the steel wire rope and the lifting hook are matched, so that the installation of the water turbine is facilitated, the water turbine is conveniently lifted to the ground for overhauling and maintenance, the problems that the existing power generation device is small in size and difficult to move, maintain and overhaul due to the adoption of a fixed structure are solved, the installation of the water turbine is facilitated, and the overhauling and maintenance efficiency is improved;

2. through the matching of the U-shaped frame, the flashboard, the screw rod and the hoist, the high bottom of the flashboard can be flexibly adjusted to control the flow of the tail water, the maximum power generation efficiency in the bearing range of the water turbine is ensured, the problems that the conventional power generation device is inconvenient to adjust the flow of the tail water, and has danger of being destroyed by flushing and the like are solved, and the power generation efficiency and the use safety are effectively improved;

3. through the matching of the filter plate, the protection box, the guide rail and the fixed block, peripheral fishes are isolated, and the upper end of the water turbine is covered to prevent the loss of the water turbine from being accelerated by human and weather reasons, so that the problems that the loss is accelerated because no protective equipment exists outside the conventional power generation device, the service life is shortened, the ecological balance ecology is destroyed are solved, the safety of the fishes and the water turbine is effectively protected, the service life is prolonged, and the ecological environment is protected;

to sum up, the utility model discloses the size of regulation tail water flow that the structure is reasonable, can be nimble guarantees to make the generating efficiency maximize at the bearing range of the hydraulic turbine, and the installation method is simple, and still be convenient for daily overhaul and maintenance can effectively keep apart peripheral fish, has protected ecological environment, and can effectually protect the hydraulic turbine, has prolonged the life of device, is worth promoting.

Drawings

Fig. 1 is a top view of a structure of a power station tail water reuse hydro-turbo generator set provided by the present invention;

fig. 2 is a front view of a structure of a power station tail water reuse water turbine generator set provided by the present invention;

fig. 3 is a schematic structural view of a U-shaped frame of a power station tail water reuse water turbine generator set structure provided by the utility model;

fig. 4 is the utility model provides a structural schematic of the guard box of hydroelectric set structure is recycled to power station tail water.

In the figure: 1 tailrace, 2 filter plates, 3 embankments, 4 opening and closing machines, 5U-shaped frames, 6 first branch channels, 7 second branch channels, 8 volutes, 9 chutes, 10 movable transverse tables, 11 bearing frames, 12 steel wire ropes, 13 guide rails, 14 sliding grooves, 15 lead screws, 16 connecting blocks, 17 hangers, 18 gate plates, 19 rollers, 20 bearing rods, 21 lifting hooks, 22 moving grooves, 23 electric hoists, 24 movable wheels, 25 limiting grooves, 26 limiting blocks, 27 fixing blocks, 28 protection boxes, 29 through holes, 30 supporting blocks, 31 openings and 32 water turbines.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example 1

Referring to fig. 1, 2, 3 and 4, a power station tail water reuse water turbine generator set structure comprises a tail water channel 1 for discharging tail water drained from a power station to a downstream, wherein both sides of the tail water channel 1 are provided with dikes 3, one side dike 3 is provided with two openings 31, one opening 31 is internally fixed with a U-shaped frame 5 for facilitating installation of a flashboard 18, the U-shaped frame 5 is provided with a flow control device for controlling tail water flow and ensuring maximum power generation efficiency within a bearing range of a water turbine 32, the tail water channel 1 is connected with a first branch channel 6 through one opening 31 for facilitating tail water introduction, one end of the first branch channel 6 is connected with a second branch channel 7, and the second branch channel 7 is connected to one side of the tail water channel 1 through the other opening 31 for discharging the tail water for power generation into the tail water channel 1 again;

the two sides of the second branch channel 7 are respectively provided with a guide rail 13 and two supporting blocks 30, the upper ends of the supporting blocks 30 are fixedly provided with a bearing rod 20, the upper ends of the four bearing rods 20 are jointly fixed with a bearing frame 11, the upper end of the bearing frame 11 is provided with a moving device, the moving device is convenient for lifting equipment, the installation and the overhaul and maintenance are convenient, the upper end of the guide rail 13 is provided with two sliding chutes 9, and protective devices are arranged in the sliding chutes 9, so that the protective devices can be conveniently opened and closed through the matching of the guide rail 13 and the sliding chutes 9, the overhaul and the maintenance are convenient, the safety of the equipment is effectively protected by the protective devices, the equipment loss is prevented from being accelerated due to weather and human factors;

the water turbine 32 is installed jointly to both ends lateral wall in the second lateral canal 7, installs spiral case 8 on the water turbine 32, and at work, tail water leads to spiral case 8 through first lateral canal 6 from tailrace 1, and in the water turbine 32 is led to through spiral case 8, when the water turbine 32, converts the gravitational potential energy of rivers into mechanical energy, and the rotor of generator is driven again to the pivot of water turbine 32, converts mechanical energy into electric energy and exports to reach the purpose of electricity generation.

In the utility model, the flow control device comprises a hoist 4 fixed on the upper end of a U-shaped frame 5, the hoist 4 adopts a screw hoist, the screw can be controlled by a hand-operated or equipped driving motor to move up and down to open and close the gate, along with the wide development of water conservancy and hydropower engineering, the gate is largely adopted for engineering projects such as reservoir irrigation area river dams, hydropower stations and the like, sliding grooves 14 are arranged on opposite side walls in the U-shaped frame 5, flashboards 18 are jointly installed in the two sliding grooves 14, the flashboards 18 are limited by the two sliding grooves 14, the purpose of adjusting the flow size is achieved by the up-and-down motion of the flashboards 18, two hangers 17 are fixed on the upper end of the flashboards 18, a connecting block 16 is rotatably connected between the two hangers 17 through an inserted link, the upper end of the connecting block 16 is rotatably connected with a screw rod 15, the upper end of the screw rod 15 penetrates through the, when the screw rod 15 is controlled to move up and down through the hoist 4 by hand cranking or a driving motor, the screw rod 15 drives the hanging lug 17 to move up and down through the connecting block 16, so that the hanging lug 17 drives the flashboard 18 to move up and down, and the purpose of adjusting the flow of tail water is achieved.

In the utility model, the moving device comprises a moving traverse table 10 arranged at the upper end of a bearing frame 11, the moving traverse table 10 is operated and moved by a driving motor, which is convenient for lifting a water turbine 32 to the ground for maintenance, moving grooves 22 are arranged at both sides of the upper end of the bearing frame 11, the moving range of the moving traverse table 10 is limited, the shifting caused by excessive movement is prevented, two moving wheels 24 are arranged at both sides of the lower end of the moving traverse table 10, the lower ends of the four moving wheels 24 are butted against the bottom of the moving grooves 22, which is convenient for the moving traverse table 10 to move, an electric hoist 23 is arranged at the lower end of the moving traverse table 10, the electric hoist 23 is a special hoisting device, which is commonly used in places such as industrial and mining enterprises, warehouses and docks, and the like, and has the characteristics of small volume, light dead weight, simple operation and the like, when the electric hoist 23 is operated, when the internal conical rotor, the electric hoist 23 is connected with a lifting hook 21 through a steel wire rope 12 at the lower end, so that a water turbine 32 can be conveniently lifted;

the protection device comprises two protection boxes 28 arranged at the upper ends of two guide rails 13, two idler wheels 19 are arranged on two sides of the lower end of each protection box 28, the two idler wheels 19 on the same side correspond to the sliding grooves 9, the lower ends of the two idler wheels 19 on the same side are abutted against the bottoms of the corresponding sliding grooves 9, the two protection boxes 28 are conveniently separated and combined through the cooperation of the idler wheels 19 and the sliding grooves 9, fixing blocks 27 are fixed on two sides of each protection box 28, through holes 29 are formed in one sides of the fixing blocks 27, the two through holes 29 on the same side correspond to each other, the protection boxes 28 are conveniently locked through the two through holes 29 on the same side, the use safety is improved, limiting grooves 25 are formed in two sides of one end of one protection box 28, limiting blocks 26 are arranged in two sides of one end of the other protection box 28, the limiting blocks 26 on the same side correspond to, the limiting blocks 26 on the same side are inserted into the corresponding limiting grooves 25, so that the firmness of the protection box 28 is improved, the safety of the water turbine 32 is effectively protected, and the service life is prolonged.

Example 2

The utility model discloses in, hydraulic turbine 32 adopts the axial compressor Kaplan turbine, axial compressor Kaplan turbine operating stability is high, high efficiency, and it is lower to the flood peak requirement, the result of use is better, the bottom of first canal 6 is higher than the bottom 4-5m of second canal 7, the flood peak demand of the axial compressor Kaplan turbine has been satisfied, compare with embodiment 1, the drop cooperation axial compressor Kaplan turbine of the 6 bottoms of first canal and the 7 bottoms of second canal of this embodiment can make hydraulic turbine 32's generating efficiency maximize, the effectual generating efficiency that has improved, the cost is reduced.

Example 3

The utility model discloses in, filter 2 is installed to one side of U type frame 5, can prevent that peripheral fish from getting into first canal 6 and causing the injury to fish, guard box 28 and fixed block 27 are integrated into one piece, and guard box 28 and fixed block 27 all adopt the high manganese steel material to make, the external impact load of high manganese steel is big more, its self top layer wearability is higher, and along with the gradual wearing and tearing on case hardening layer, new processing hardening layer can constantly form in succession, compare with embodiment 1, the filter 2 of this embodiment more can effectual protection ecological environment, and through guard box 28, fixed block 27 and stopper 26 integrated into one piece have promoted firm nature, adopt the high manganese steel material to make further improvement the protective properties, the effectual life who prolongs hydraulic turbine 32.

In the utility model, in use, the screw rod 15 is driven to move up and down through the hoist 4, thereby the screw rod 15 drives the connecting block 16 to move up and down, and then the connecting block 16 drives the flashboard 18 to move up and down through the hangers 17, the flow of tail water is adjusted, the tail water is led to the water turbine 32 through the first branch canal 6 and the volute 8, when passing through the water turbine 32, the water energy is converted into mechanical energy, the rotor of the generator is driven by the rotating shaft of the water turbine 32, the mechanical energy is converted into electric energy to be output, thereby the purpose of power generation is achieved, the electromagnetic field generates an axial tension to the rotor after the electric block 23 at the upper end of the movable transverse platform 10 is electrified, the resistance generated by the spring is overcome, the brake wheel is separated from the friction disc, the rotor shaft drives the drum device to work through the gear of the reducer, thereby the lifting hook 21, and then remove horizontal platform 10 and drive electric block 23 and remove, electric block 23 drives hydraulic turbine 32 and removes, when removing subaerially, place hydraulic turbine 32 on ground, be convenient for detect and maintain, still be convenient for hydraulic turbine 32's installation, hydraulic turbine 32 installs the back that finishes, two guard box 28 of relative movement, insert the spacing groove 25 that corresponds with the stopper 26 of one side, the firm nature of guard box 28 has been improved, two through-holes 29 of the same side of rethread are with guard box 28 locking, promote safety in utilization, the effectual safety of protecting hydraulic turbine 32, and service life is prolonged.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a hydroelectric set structure is recycled to power station tail water, includes tailrace (1), its characterized in that: the two sides of the tailrace (1) are respectively provided with an embankment (3), the embankment (3) on one side is provided with two openings (31), one opening (31) is internally fixed with a U-shaped frame (5), the U-shaped frame (5) is provided with a flow control device, the tailrace (1) is connected with a first branch channel (6) through one opening (31), one end of the first branch channel (6) is connected with a second branch channel (7), the second branch channel (7) is connected to one side of the tailrace (1) through the other opening (31), two sides of the second branch channel (7) are respectively provided with a guide rail (13) and two support blocks (30), the upper ends of the support blocks (30) are fixedly provided with bearing rods (20), the upper ends of the four bearing rods (20) are jointly fixed with a bearing frame (11), the upper end of the bearing frame (11) is provided with a moving device, the upper end of the guide rail (13) is provided with two sliding chutes (9), be equipped with protector in spout (9), the hydraulic turbine (32) is installed jointly to both ends lateral wall in second canal (7), install spiral case (8) on hydraulic turbine (32).

2. The power station tail water recycling hydroelectric generating set structure according to claim 1, wherein the flow control device comprises a hoist (4) fixed on the upper end of a U-shaped frame (5), sliding grooves (14) are respectively formed on opposite side walls in the U-shaped frame (5), a gate plate (18) is jointly installed in the two sliding grooves (14), two hanging lugs (17) are fixed on the upper end of the gate plate (18), a connecting block (16) is rotatably connected between the two hanging lugs (17) through an inserted link, the upper end of the connecting block (16) is rotatably connected with a lead screw (15), and the upper end of the lead screw (15) penetrates through the U-shaped frame (5) and is installed in the hoist (4).

3. The power station tail water recycling water-turbine generator set structure according to claim 1, wherein the moving device comprises a moving cross platform (10) arranged at the upper end of a bearing frame (11), moving grooves (22) are formed in both sides of the upper end of the bearing frame (11), two moving wheels (24) are arranged on both sides of the lower end of the moving cross platform (10), the lower ends of the four moving wheels (24) abut against the bottom of the moving grooves (22), an electric hoist (23) is mounted at the lower end of the moving cross platform (10), and a lifting hook (21) is connected to the lower end of the electric hoist (23) through a steel wire rope (12).

4. The power station tail water recycling hydroelectric generating set structure according to claim 1, wherein the protecting device comprises two protecting boxes (28) arranged at the upper ends of the two guide rails (13), two rollers (19) are arranged on both sides of the lower end of each protecting box (28), the two rollers (19) on the same side correspond to the sliding chutes (9), and the lower ends of the two rollers (19) on the same side abut against the bottoms of the corresponding sliding chutes (9).

5. The power station tail water recycling hydroelectric generating set structure according to claim 4, wherein fixing blocks (27) are fixed on two sides of the protection box (28), one side of each fixing block (27) is provided with a through hole (29), and the two through holes (29) on the same side correspond to each other.

6. The power station tail water reuse water turbine generator set structure according to claim 4, characterized in that both sides of one end of one of the protection boxes (28) are provided with a limiting groove (25), both sides of one end of the other protection box (28) are provided with a limiting block (26), and the limiting block (26) and the limiting groove (25) on the same side correspond.

7. The power station tail water reuse hydro-turbo generator set structure according to claim 1, wherein the water turbine (32) is an axial flow Kaplan water turbine.

8. The power station tail water reuse hydro-turbo generator set structure according to claim 1, wherein the bottom of the first lateral channel (6) is higher than the bottom of the second lateral channel (7) by 4-5 m.

9. The power station tail water reuse hydro-turbo generator set structure according to claim 2, wherein a filter plate (2) is installed at one side of the U-shaped frame (5).

10. The power station tail water recycling hydroelectric generating set structure according to claim 5, wherein the protective box (28) and the fixing block (27) are integrally formed, and the protective box (28) and the fixing block (27) are both made of high manganese steel.