Speed regulation equipment for hydroelectric generating set of hydropower station

Abstract

The utility model relates to the technical field of hydroelectric power generation equipment, and discloses hydroelectric power station water-turbine generator set speed regulation equipment which comprises a water-turbine generator body, installation columns are evenly and fixedly installed on the outer wall of the water-turbine generator body, and limiting rings are fixedly installed at the upper ends of the outer walls of the installation columns. A limiting ring is arranged on the outer wall of the hydraulic generator body, a mounting ring is fixedly mounted at the position, located at the upper end of the limiting ring, of the outer wall of the hydraulic generator body, an automatic speed regulating mechanism is arranged on the outer wall of the mounting ring, and the automatic speed regulating mechanism comprises a servo motor. The worm on the automatic speed regulation mechanism can drive the worm gear to rotate, and the worm gear cannot drive the worm to rotate, so that the whole automatic speed regulation mechanism has a self-locking function, the situation that the whole speed regulation equipment is prone to inaccurate speed regulation due to excessive water flow impact is avoided, and the requirement for accurate power generation of the water-turbine generator set is met.

Description

Technical Field

[0001] The utility model relates to the technical field of hydroelectric power generation equipment, in particular to speed regulating equipment for a water turbine generator set in a hydroelectric power station. Background Art

[0002] Hydropower is an engineering technology that develops water resources in rivers or oceans and converts water energy into electrical energy. The principle of hydropower generation is to take measures such as concentrated head and runoff regulation to convert the potential energy and kinetic energy contained in natural water flow into mechanical energy through turbines, and then convert it into electrical energy through generators. Finally, the electrical energy is sent to the power system or directly supplied to users through power transmission and transformation facilities. There are many forms of hydropower generation. Conventional hydropower is generated by river runoff water energy, tidal power generation is generated by ocean tidal energy, wave power generation is generated by wave energy, and pumped storage power generation is generated by using the surplus power of the power system during low load and releasing water during peak load. Hydropower generation does not use fuel, does not pollute the environment, and energy is continuously replenished due to precipitation. The operating cost is low, and the operation and adjustment of electromechanical equipment are flexible. It can be used in combination with water conservancy projects such as irrigation and shipping. The turbine generator set is a generator set driven by a turbine. Due to the different natural conditions of hydropower stations, the capacity and speed of the turbine generator set vary greatly. Usually, small hydro-turbine generators and high-speed hydro-turbine generators driven by impulse turbines mostly adopt horizontal structures, while large and medium-sized idle generators mostly adopt vertical structures.

[0003] The existing speed regulating equipment of the hydro-turbine generator set does not have a self-locking function when regulating the speed of the hydro-turbine generator set. Due to the large impact force of the water flow, the speed regulating equipment is prone to inaccurate speed regulation and cannot meet the needs of the hydro-turbine generator set for accurate power generation.

[0004] Therefore, we propose the speed regulating equipment for the turbine generator set in the hydropower station. Utility Model Content

[0005] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a speed regulating device for a hydro-turbine generator set in a hydropower station.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a speed regulating device for a hydro-turbine generator set in a hydropower station comprises a hydro-turbine generator body, the outer wall of the hydro-turbine generator body is evenly fixedly installed with mounting columns, the upper end of the outer wall of the mounting column is fixedly installed with a limit ring, the outer wall of the hydro-turbine generator body is located at the upper end of the limit ring and the mounting ring is fixedly installed, the outer wall of the mounting ring is provided with an automatic speed regulating mechanism, the automatic speed regulating mechanism comprises a servo motor, and the back side of the servo motor is fixedly connected to the inner wall of the hydro-turbine generator body, the output end of the servo motor is fixedly installed with a worm, and the front side of the worm is movably connected to the inner wall of the hydro-turbine generator body, the right side of the outer wall of the worm is movably meshed with a worm wheel, the inner wall of the worm wheel is fixedly installed with a connecting shaft, and the bottom of the connecting shaft is movably connected to the inner wall of the hydro-turbine generator body, and the top of the connecting shaft is movably connected to the inner wall of the hydro-turbine generator body.

[0007] Preferably, a gear is fixedly mounted on the upper end of the outer wall of the connecting shaft, an inner gear ring is movably engaged on the outer wall of the gear, a connecting ring is fixedly mounted on the top of the inner gear ring, and the upper end of the outer wall of the connecting ring is movably connected to the lower end of the inner wall of the mounting ring.

[0008] Preferably, a speed regulating assembly is evenly and fixedly mounted on the outer wall of the inner gear ring.

[0009] Preferably, the speed regulating assembly includes a mounting plate, and one side of the outer wall of the mounting plate is fixedly connected to the outer wall of the inner gear ring.

[0010] Preferably, a connecting rod is movably mounted on one end of the top of the mounting plate away from the inner gear ring via a rotating shaft, and an arc-shaped connecting rod is movably mounted on one end of the bottom of the connecting rod away from the mounting plate via a rotating shaft.

[0011] Preferably, a first connecting column is fixedly mounted on one end of the bottom of the arc-shaped connecting rod away from the connecting rod via a rotating shaft, and an outer wall of the first connecting column is movably connected to an inner wall of the limiting ring.

[0012] Preferably, a second connecting column is fixedly mounted on the bottom of the first connecting column, and the bottom of the second connecting column movably penetrates the top of the inner wall of the hydro-generator body.

[0013] Preferably, a movable water guide plate is fixedly mounted on the bottom of the second connecting column.

[0014] Preferably, a third connecting column is fixedly mounted on the bottom of the movable water guide plate, and an outer wall of the third connecting column is movably connected to the bottom of the inner wall of the hydro-generator body.

[0015] Beneficial Effects

[0016] The utility model provides a speed regulating device for a hydroelectric generator set in a hydropower station, which has the following beneficial effects:

[0017] (1) The speed regulating device of the hydro-turbine generator set of the hydropower station is provided with an automatic speed regulating mechanism, which can automatically and accurately control the speed of the hydro-turbine generator body, and the worm on the automatic speed regulating mechanism can drive the worm wheel to rotate, while the worm wheel cannot drive the worm to rotate, so that the entire automatic speed regulating mechanism has a self-locking function, avoiding the situation where the speed regulating device is prone to inaccurate due to excessive impact of water flow, and meeting the demand for accurate power generation of the hydro-turbine generator set. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the front side of the utility model;

[0019] Figure 2 This is a front structural diagram of the automatic speed regulating mechanism of the utility model;

[0020] Figure 3 It is a schematic diagram of the front structure of the speed regulating component of the utility model.

[0021] Legend: 10. Hydro-turbine generator body; 11. Limiting ring; 12. Mounting ring; 13. Automatic speed regulating mechanism; 14. Servo motor; 15. Gear; 16. Internal gear ring; 17. Connecting ring; 18. Speed ​​regulating assembly; 19. Mounting plate; 20. Connecting rod; 21. Arc connecting rod; 22. First connecting column; 23. Second connecting column; 24. Movable water guide plate; 25. Third connecting column; 26. Worm; 27. Worm wheel; 28. Mounting column; 29. ​​Connecting shaft. DETAILED DESCRIPTION

[0022] Embodiment 1: Speed ​​regulating equipment of a hydroelectric generator set in a hydropower station, such as Figure 1 As shown, it includes a hydro-generator body 10, the outer wall of the hydro-generator body 10 is evenly fixedly installed with mounting columns 28, the upper end of the outer wall of the mounting column 28 is fixedly installed with a limit ring 11, the outer wall of the hydro-generator body 10 is located at the upper end of the limit ring 11 and the mounting ring 12 is fixedly installed, the outer wall of the mounting ring 12 is provided with an automatic speed regulating mechanism 13, by providing the automatic speed regulating mechanism 13, the automatic speed regulating mechanism 13 can automatically and accurately control the speed of the hydro-generator body 10, and the worm 26 on the automatic speed regulating mechanism 13 can drive the worm wheel 27 to rotate, while the worm wheel 27 cannot drive the worm 26 to rotate, so that the entire automatic speed regulating mechanism 13 has a self-locking function, avoiding the situation that the entire speed regulating equipment is prone to inaccurate speed regulation due to excessive water flow impact, and meeting the demand for accurate power generation of the hydro-generator set.

[0023] Embodiment 2: Based on Embodiment 1, Figure 2As shown, the automatic speed regulating mechanism 13 includes a servo motor 14, and the back of the servo motor 14 is fixedly connected to the inner wall of the hydro-generator body 10, a worm 26 is fixedly installed at the output end of the servo motor 14, and the front of the worm 26 is movably connected to the inner wall of the hydro-generator body 10, a worm wheel 27 is movably engaged on the right side of the outer wall of the worm 26, a connecting shaft 29 is fixedly installed on the inner wall of the worm wheel 27, and the bottom of the connecting shaft 29 is movably connected to the inner wall of the hydro-generator body 10, the top of the connecting shaft 29 is movably connected to the inner wall of the hydro-generator body 10, a gear 15 is fixedly installed on the upper end of the outer wall of the connecting shaft 29, an inner gear ring 16 is movably engaged on the outer wall of the gear 15, a connecting ring 17 is fixedly installed on the top of the inner gear ring 16, and the upper end of the outer wall of the connecting ring 17 is movably connected to the lower end of the inner wall of the mounting ring 12, and a speed regulating component 18 is evenly fixedly installed on the outer wall of the inner gear ring 16.

[0024] Embodiment 3: Based on Embodiment 1 and Embodiment 2, Figure 3 As shown, the speed regulating assembly 18 includes a mounting plate 19, and one side of the outer wall of the mounting plate 19 is fixedly connected to the outer wall of the inner gear ring 16, a connecting rod 20 is movably installed on the top end of the mounting plate 19 away from the inner gear ring 16 through a rotating shaft, an arc connecting rod 21 is movably installed on the bottom end of the connecting rod 20 away from the mounting plate 19 through a rotating shaft, a first connecting column 22 is fixedly installed on the bottom end of the arc connecting rod 21 away from the connecting rod 20 through a rotating shaft, and the outer wall of the first connecting column 22 is movably connected to the inner wall of the limiting ring 11, a second connecting column 23 is fixedly installed on the bottom of the first connecting column 22, and the bottom of the second connecting column 23 movably passes through the top of the inner wall of the hydro-turbine generator body 10, a movable water guide plate 24 is fixedly installed on the bottom of the second connecting column 23, a third connecting column 25 is fixedly installed on the bottom of the movable water guide plate 24, and the outer wall of the third connecting column 25 is movably connected to the bottom of the inner wall of the hydro-turbine generator body 10.

[0025] The working principle of the utility model is as follows: by turning on the switch of the servo motor 14, the output end of the servo motor 14 drives the worm 26 to start rotating, the worm 26 drives the worm wheel 27 to start rotating, the worm wheel 27 drives the gear 15 to start rotating through the connecting shaft 29, the gear 15 drives the inner gear ring 16 to start rotating along the mounting ring 12 through the connecting ring 17, the inner gear ring 16 drives the mounting plate 19 to start rotating, the mounting plate 19 drives the arc connecting rod 21 to start rotating through the connecting rod 20, the arc connecting rod 21 drives the movable water guide plate 24 to start rotating along the third connecting column 25 through the first connecting column 22 and the second connecting column 23, thereby achieving the purpose of adjusting the angle of the movable water guide plate 24, so that the operating speed of the entire turbine is accurately controlled.

[0026] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A speed regulating device for a hydroelectric generator set in a hydropower station, comprising a hydroelectric generator body (10), characterized in that: The outer wall of the hydro-turbine generator body (10) is evenly and fixedly mounted with mounting columns (28), the upper end of the outer wall of the mounting columns (28) is fixedly mounted with a limit ring (11), the outer wall of the hydro-turbine generator body (10) is located at the upper end of the limit ring (11) and a mounting ring (12) is fixedly mounted, the outer wall of the mounting ring (12) is provided with an automatic speed regulating mechanism (13), the automatic speed regulating mechanism (13) includes a servo motor (14), and the back side of the servo motor (14) is in contact with the outer wall of the hydro-turbine generator body (10). The inner wall is fixedly connected, a worm (26) is fixedly installed on the output end of the servo motor (14), and the front side of the worm (26) is movably connected to the inner wall of the hydro-generator body (10), a worm wheel (27) is movably engaged on the right side of the outer wall of the worm (26), a connecting shaft (29) is fixedly installed on the inner wall of the hydro-generator body (10), and the bottom of the connecting shaft (29) is movably connected to the inner wall of the hydro-generator body (10), and the top of the connecting shaft (29) is movably connected to the inner wall of the hydro-generator body (10).

2. The speed regulating device of a hydroelectric generator set of a hydropower station according to claim 1, characterized in that: A gear (15) is fixedly mounted on the upper end of the outer wall of the connecting shaft (29), an inner gear ring (16) is movably engaged with the outer wall of the gear (15), a connecting ring (17) is fixedly mounted on the top of the inner gear ring (16), and the upper end of the outer wall of the connecting ring (17) is movably connected to the lower end of the inner wall of the mounting ring (12).

3. The speed regulating device of a hydroelectric generator set of a hydropower station according to claim 2, characterized in that: The outer wall of the inner gear ring (16) is evenly and fixedly mounted with a speed regulating assembly (18).

4. The speed regulating device of a hydroelectric generator set of a hydropower station according to claim 3 is characterized in that: The speed regulating assembly (18) comprises a mounting plate (19), and one side of the outer wall of the mounting plate (19) is fixedly connected to the outer wall of the inner gear ring (16).

5. The speed regulating device of a hydroelectric generator set of a hydropower station according to claim 4, characterized in that: A connecting rod (20) is movably mounted on one end of the top of the mounting plate (19) away from the inner gear ring (16) via a rotating shaft, and an arc-shaped connecting rod (21) is movably mounted on one end of the bottom of the connecting rod (20) away from the mounting plate (19) via a rotating shaft.

6. The speed regulating device of a hydroelectric generator set of a hydropower station according to claim 5, characterized in that: A first connecting column (22) is fixedly mounted on one end of the bottom of the arc-shaped connecting rod (21) away from the connecting rod (20) via a rotating shaft, and an outer wall of the first connecting column (22) is movably connected to an inner wall of the limiting ring (11).

7. The speed regulating device of a hydroelectric generator set of a hydropower station according to claim 6, characterized in that: A second connecting column (23) is fixedly mounted on the bottom of the first connecting column (22), and the bottom of the second connecting column (23) movably penetrates the top of the inner wall of the hydro-generator body (10).

8. The speed regulating device of a hydroelectric generator set of a hydropower station according to claim 7, characterized in that: A movable water guide plate (24) is fixedly mounted on the bottom of the second connecting column (23).

9. The speed regulating device of a hydroelectric generator set of a hydropower station according to claim 8, characterized in that: A third connecting column (25) is fixedly mounted on the bottom of the movable water guide plate (24), and the outer wall of the third connecting column (25) is movably connected to the bottom of the inner wall of the hydro-generator body (10).

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