CN219081755U

CN219081755U - High-stress guide vane structure of water turbine

Info

Publication number: CN219081755U
Application number: CN202223435592.9U
Authority: CN
Inventors: 孙东明
Original assignee: Hangzhou Kangpeng Machinery Manufacturing Co ltd
Current assignee: Hangzhou Kangpeng Machinery Manufacturing Co ltd
Priority date: 2022-12-22
Filing date: 2022-12-22
Publication date: 2023-05-26
Anticipated expiration: 2032-12-22

Abstract

The utility model discloses a high-stress guide vane structure of a water turbine, which belongs to the field of water turbines and comprises a main shaft, wherein the end surfaces of two sides of the main shaft are provided with a transmission shaft, the outer ring of the main shaft is provided with a plurality of rotary vanes, the upper end surface of each rotary vane is provided with a groove, the top position of one side of the main shaft is provided with a first spray pipe, the bottom position of one side of the main shaft is provided with a second spray pipe, the end surface of the outer side of the main shaft is provided with a spacing circular plate, the end surface of the outer side of the spacing circular plate is provided with a current limiting baffle plate, the outer ring position of the inner side end surface of the current limiting baffle plate is provided with a plurality of driven guide vanes, the two sides of the outer ring of the transmission shaft are provided with fixing blocks, the outer side end surface of the current limiting baffle plate is provided with a butt joint block corresponding to the fixing blocks, and the outer ring position of the inner side end surface of the current limiting baffle plate is provided with a plurality of driven guide vanes, and the driven guide vanes can be pushed to move by water flow sprayed after being impacted in the spray pipes, so that the stress degree of the guide vanes is improved, the rotating speed of the water turbine is improved, and the power generation capacity is improved.

Description

High-stress guide vane structure of water turbine

Technical Field

The utility model relates to the field of water turbines, in particular to a high-stress guide vane structure of a water turbine.

Background

The hydraulic turbine is a power machine for converting energy of water flow into rotary mechanical energy, most of the power machine is arranged in a hydropower station and used for driving a generator to generate electricity, in the hydropower station, water in an upstream reservoir is guided to the hydraulic turbine through a water diversion spray pipe to push a runner of the hydraulic turbine to rotate so as to drive the generator to generate electricity, a runner guide vane structure of the common hydraulic turbine is simpler, water sprayed out of the spray pipe can generate sputtering after impacting guide vanes and falls from two sides of the guide vanes, so that the water flow generates certain dispersion during impact, and the sputtered water flow wave head still has certain kinetic energy, the guide vane structure of the common hydraulic turbine cannot efficiently apply the kinetic energy, so that energy is wasted and the power generation operation of the generator is not facilitated.

Disclosure of Invention

The utility model mainly aims to provide a high-stress guide vane structure of a water turbine, which can effectively solve the problems in the background technology.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a high atress stator structure of hydraulic turbine, includes the main shaft, main shaft both sides terminal surface is provided with the transmission shaft, the main shaft outer lane is provided with a plurality of runner stator, runner stator up end is provided with the recess, main shaft one side top position is provided with first spray tube, main shaft one side bottom position is provided with the second spray tube, and main shaft outside terminal surface is provided with the interval plectane, the interval plectane outside terminal surface is provided with the restriction resistance board, restriction resistance board inboard terminal surface outer lane position is provided with a plurality of driven stator, transmission shaft outer lane both sides position is provided with the fixed block, restriction resistance board outside terminal surface corresponds the fixed block and is provided with the butt joint piece.

Preferably, the main shaft and the transmission shaft are integrally formed, the spacing circular plate and the current-limiting resistance plate are fixed through welding, and the butt joint blocks are respectively positioned above and below the fixing blocks at two sides.

Preferably, the middle part of the interval circular plate is provided with a first round hole corresponding to the transmission shaft, the middle part of the current-limiting baffle is provided with a second round hole corresponding to the transmission shaft, two sides of the first round hole are provided with first fixing holes corresponding to the fixing blocks, two sides of the second round hole are provided with second fixing holes corresponding to the fixing blocks, the head of the transmission shaft penetrates through the first round hole and the second round hole, and the fixing blocks are located at the outer side of the current-limiting baffle.

Preferably, the driven guide vane and the flow-limiting baffle plate are integrated into a whole, and a drain hole is formed in the middle of the driven guide vane above the first spray pipe.

Preferably, the butt joint block is provided with a rectangular hole near the end face of one side of the fixed block, an adjustable positioning vertical plate is arranged in the rectangular hole, a positioning hole is formed between the upper end face and the lower end face of the fixed block and corresponds to the positioning vertical plate, and the height of the positioning vertical plate is equal to half of the height of the fixed block.

Preferably, a rectangular groove is formed below the rectangular hole, a base plate is arranged at the bottom of the rectangular groove, a partition plate is arranged at the top of the rectangular groove, a spring is arranged between the base plate and the partition plate, the base plate and the partition plate are movably mounted in the rectangular groove, and the bottom of the positioning vertical plate is connected to the upper end face of the partition plate.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, the interval circular plate and the current-limiting baffle are arranged on the outer side of the main shaft, and the driven guide vanes are arranged on the outer ring of the inner end face of the current-limiting baffle, so that the driven guide vanes can be pushed to move by utilizing water flow sputtered after the water flow in the spray pipe is impacted, the stress degree of the guide vanes is further improved, the rotating speed of the water turbine is accelerated, the power generation capacity is improved, meanwhile, the fixing block is arranged on the outer ring of the transmission shaft, and the corresponding butt joint block is arranged on the outer side of the current-limiting baffle, so that the current-limiting baffle is convenient to install and fix, and synchronous rotation of the current-limiting baffle is ensured.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of a flow restrictor plate of the present utility model;

fig. 3 is a split schematic diagram of a docking block according to the present utility model.

In the figure: 1. a main shaft; 2. a transmission shaft; 3. a runner guide vane; 4. a groove; 5. a spacer circular plate; 6. a flow-limiting baffle plate; 7. a first round hole; 8. a fixed block; 9. a first fixing hole; 10. a second round hole; 11. a second fixing hole; 12. a butt joint block; 13. positioning a vertical plate; 14. positioning holes; 15. a driven guide vane; 16. a drain hole; 17. a first nozzle; 18. a second nozzle; 19. a rectangular hole; 20. rectangular grooves; 21. a partition plate; 22. a backing plate; 23. and (3) a spring.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

As shown in fig. 1-3, a high-stress guide vane structure of a water turbine comprises a main shaft 1, wherein two side end faces of the main shaft 1 are provided with a transmission shaft 2, a plurality of rotary guide vanes 3 are arranged on the outer ring of the main shaft 1, a groove 4 is formed in the upper end face of each rotary guide vane 3, a first spray pipe 17 is arranged at the top position of one side of the main shaft 1, a second spray pipe 18 is arranged at the bottom position of one side of the main shaft 1, a spacing circular plate 5 is arranged on the outer side end face of the main shaft 1, a current-limiting baffle 6 is arranged on the outer side end face of the spacing circular plate 5, a plurality of driven guide vanes 15 are arranged at the outer ring position of the inner side end face of the current-limiting baffle 6, fixing blocks 8 are arranged at the two side positions of the outer ring of the transmission shaft 2, and a butt joint block 12 is arranged on the outer side end face of the current-limiting baffle 6 corresponding to the fixing blocks 8.

In this embodiment, in order to facilitate butt joint installation of the spacing circular plate 5 and the current-limiting resistance plate 6, the main shaft 1 and the transmission shaft 2 are integrally formed components, the spacing circular plate 5 and the current-limiting resistance plate 6 are fixed by welding, the butt joint blocks 12 are respectively located at the upper and lower positions of the fixing blocks 8 at two sides, the middle part of the spacing circular plate 5 is provided with a first round hole 7 corresponding to the transmission shaft 2, the middle part of the current-limiting resistance plate 6 is provided with a second round hole 10 corresponding to the transmission shaft 2, two sides of the first round hole 7 are provided with first fixing holes 9 corresponding to the fixing blocks 8, two sides of the second round hole 10 are provided with second fixing holes 11 corresponding to the fixing blocks 8, the head of the transmission shaft 2 passes through the first round hole 7 and the second round hole 10, and the fixing blocks 8 are located at the outer side of the current-limiting resistance plate 6;

in the embodiment, in order to avoid reverse thrust caused by too high wave head of sputtering, a member formed by integrating the driven guide vane 15 and the flow-limiting baffle plate 6 is arranged in the middle of the driven guide vane 15 above the first spray pipe 17, and a drain hole 16 is arranged in the middle of the driven guide vane 15;

in this embodiment, in order to ensure the stability of the current-limiting baffle 6 after installation, the current-limiting baffle rotates synchronously with the main shaft 1 and the transmission shaft 2, a rectangular hole 19 is formed in the end face of the butt joint block 12, which is close to one side of the fixed block 8, an adjustable positioning vertical plate 13 is arranged in the rectangular hole 19, a positioning hole 14 is formed between the upper end face and the lower end face of the fixed block 8, which corresponds to the positioning vertical plate 13, the height of the positioning vertical plate 13 is equal to half of the height of the fixed block 8, a rectangular groove 20 is formed below the rectangular hole 19, a base plate 22 is arranged at the bottom of the rectangular groove 20, a partition plate 21 is arranged at the top of the rectangular groove 20, a spring 23 is arranged between the base plate 22 and the partition plate 21, the base plate 22 and the partition plate 21 are movably mounted in the rectangular groove 20, and the bottom of the positioning vertical plate 13 is connected to the upper end face of the partition plate 21.

It should be noted that, in practical use, the high stress guide vane structure of the water turbine is provided by firstly installing the spacing circular plate 5 on two sides of the main shaft 1, making the transmission shaft 2 pass through the first round hole 7, and the fixing blocks 8 on two sides pass through the first fixing hole 9, then installing the current limiting baffle 6 on the outer side of the spacing circular plate 5, simultaneously pressing the positioning vertical plates 13 on the surfaces of the two butt blocks 12 to make them move downwards, pressing the baffle plate 21 below the positioning vertical plates 13 when moving, pressing the baffle plate 21 and then pressing the spring 23 below the baffle plate, making the spring 23 stress and compress until the positioning vertical plates 13 are completely contracted, then making the fixing blocks 8 on two sides of the transmission shaft 2 pass through the second fixing hole 11, then loosening the positioning vertical plates 13 and making the fixing blocks 8 reach the positions of the butt blocks 12, the positioning vertical plate 13 is lifted under the action of elastic force and enters the positioning hole 14 in the fixed block 8, so that the main shaft 1, the spacing circular plate 5 and the current limiting baffle plate 6 are in a stable state, when the water turbine works, the first spray pipe 17 and the second spray pipe 18 guide and spray water in an upstream reservoir, the sprayed water flow directly impacts the runner guide vane 3, the runner guide vane 3 is enabled to move, the main shaft 1 is driven to rotate, the main shaft 1 drives the transmission shaft 2 to rotate, the transmission shaft 2 can be used for driving a generator to operate, the water flow collides with the runner guide vane 3 to generate sputtering when the water flow impacts, the sputtered water flow wave heads move to two sides and are blocked by the current limiting baffle plate 6, and finally the sputtered water flow returns to the runner guide vane 3 and the driven guide vane 15, so that the rotation energy of the main shaft 1 and the transmission shaft 2 is enhanced, and the power generation efficiency is improved.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a high atress stator structure of hydraulic turbine, includes main shaft (1), main shaft (1) both sides terminal surface is provided with transmission shaft (2), main shaft (1) outer lane is provided with a plurality of runner stator (3), runner stator (3) up end is provided with recess (4), main shaft (1) one side top position is provided with first spray tube (17), main shaft (1) one side bottom position is provided with second spray tube (18), its characterized in that: the outer side end face of the main shaft (1) is provided with a spacing circular plate (5), the outer side end face of the spacing circular plate (5) is provided with a current-limiting baffle (6), the outer ring position of the inner side end face of the current-limiting baffle (6) is provided with a plurality of driven guide vanes (15), the two sides of the outer ring of the transmission shaft (2) are provided with fixing blocks (8), and the outer side end face of the current-limiting baffle (6) is provided with butt joint blocks (12) corresponding to the fixing blocks (8).

2. The high stress guide vane structure of a water turbine as claimed in claim 1, wherein: the main shaft (1) and the transmission shaft (2) are integrally formed, the spacing circular plate (5) and the current-limiting resistance plate (6) are fixed through welding, and the butt joint blocks (12) are respectively positioned at the upper part and the lower part of the fixed blocks (8) at the two sides.

3. The high stress guide vane structure of a water turbine as claimed in claim 1, wherein: the middle part of interval plectane (5) corresponds transmission shaft (2) and is provided with first round hole (7), the current-limiting resistance plate (6) middle part corresponds transmission shaft (2) and is provided with second round hole (10), first round hole (7) both sides correspond fixed block (8) and are provided with first fixed orifices (9), second round hole (10) both sides correspond fixed block (8) and are provided with second fixed orifices (11), transmission shaft (2) head passes first round hole (7) and second round hole (10), and fixed block (8) are located current-limiting resistance plate (6) outside position.

4. The high stress guide vane structure of a water turbine as claimed in claim 1, wherein: the driven guide vane (15) and the flow-limiting baffle plate (6) are integrally formed, and a drain hole (16) is formed in the middle of the driven guide vane (15) above the first spray pipe (17).

5. The high stress guide vane structure of a water turbine as claimed in claim 1, wherein: the butt joint block (12) is close to a side end face of the fixed block (8) and is provided with a rectangular hole (19), an adjustable positioning vertical plate (13) is arranged in the rectangular hole (19), a positioning hole (14) is formed between the upper end face and the lower end face of the fixed block (8) and corresponds to the positioning vertical plate (13), and the height of the positioning vertical plate (13) is equal to half of the height of the fixed block (8).

6. The high stress guide vane structure of a water turbine as claimed in claim 5, wherein: rectangular grooves (20) are formed in the bottoms of the rectangular holes (19), base plates (22) are arranged at the bottoms of the rectangular grooves (20), partition plates (21) are arranged at the tops of the rectangular grooves (20), springs (23) are arranged between the base plates (22) and the partition plates (21), the base plates (22) and the partition plates (21) are movably mounted in the rectangular grooves (20), and the bottoms of the positioning vertical plates (13) are connected to the upper end faces of the partition plates (21).