Reservoir hydroelectric power automatic control device

Abstract

The utility model relates to the technical field of reservoir hydroelectric power generation, and discloses a reservoir hydroelectric power generation automatic control device which comprises a water flow channel, the downstream end of the water flow channel is connected with a circular flow channel, a volute is installed in the center of the bottom of the circular flow channel, an impeller is rotationally arranged in the volute, and the top of the volute is connected with a top plate through a bolt. A generator set is installed on the top face of the top plate, the input end of the generator set is connected with the rotating rod, and a speed adjusting assembly is installed on the inner wall of the upstream section of the water flow channel. When the opening degree of the water blocking plate needs to be adjusted, the servo motor is started, the transmission rod is driven to rotate through transmission structures such as a chain wheel and a chain, then the bent plate, the adjusting plate, the connecting plate and the L-shaped supporting plate act, finally the water blocking plate rotates around the rotating shaft to change the opening degree, the purpose of adjusting water flow is achieved, and different power generation requirements can be met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of reservoir water conservancy power generation, specifically to a reservoir water conservancy power generation automatic control device. BACKGROUND

[0002] In today's society, energy demand continues to grow, and water conservancy power generation, as a clean and renewable energy source, plays an important role in the global energy structure. Reservoir water conservancy power generation is one of the important forms of water conservancy power generation, which realizes the conversion of mechanical energy to electrical energy by reasonably utilizing the water level difference and flow energy of the reservoir. In the process of generating electricity through the water turbine generator set, the speed of the water turbine needs to be adjusted to ensure that the frequency of the output power meets the power supply requirements.

[0003] According to the search, the Chinese patent document, publication number: CN221373786U, discloses a reservoir water conservancy power generation automatic control device. Two motors drive two lead screws to rotate, and two sleeves are moved towards or away from each other through the lead screws, thereby driving two adjusting plates to move towards or away from each other, adjusting the distance between the two adjusting plates, and then adjusting the flow rate of water, thereby adjusting the speed of the water turbine in the water turbine generator set to ensure that the frequency of the output power meets the power supply requirements.

[0004] However, the above-mentioned device needs two sets of driving equipment such as motors and lead screws to adjust the adjusting plate during actual use, which is not conducive to reducing costs and energy consumption. Moreover, it cannot finely adjust the water flow. Utility model content

[0005] Technical problems solved

[0006] In view of the deficiencies of the prior art, the utility model provides a reservoir water conservancy power generation automatic control device, which can finely adjust the water flow to achieve the purpose of controlling the speed regulation of the water turbine in the water turbine generator set, solving the above technical problems.

[0007] Technical scheme (II)

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a reservoir water conservancy power generation automatic control device, comprising a water flow channel, the downstream end of the water flow channel is connected with a circular flow channel, the bottom center of the circular flow channel is installed with a volute, the inside of the volute is rotatably provided with an impeller, the top of the volute is connected with a top plate through bolts, the top surface of the top plate is installed with a generator set, the input end of the generator set is connected with a rotating rod, and the upstream section of the water flow channel is installed with a speed regulation assembly on the inner wall.

[0009] The speed regulating assembly comprises a side plate, a rotating shaft is rotatably connected in the side plate, a water blocking plate is fixedly connected to one end of the rotating shaft through bolts, an L-shaped supporting plate is connected to the back surface of the water blocking plate through bolts, a connecting plate is rotatably connected to the side surface of the L-shaped supporting plate, an adjusting plate is rotatably connected to the outer surface of the connecting plate, a curved plate is rotatably connected to one end of the adjusting plate, a transmission rod is fixedly connected to the outer surface of the curved plate, a sprocket one is fixedly connected to the outer surface of the transmission rod, a chain is meshingly connected to the sprocket one, a sprocket two is meshingly connected to the chain, the output shaft of a servo motor is fixedly connected to the end surface of the sprocket two, and the bottom surface of the base of the servo motor is connected to a mounting plate.

[0010] Preferably, a circular hole is formed in the bottom of the circular flow channel, a volute is installed in the circular hole, and a rotating rod is connected to the center of the top surface of the impeller through bolts.

[0011] Preferably, a rotating plate is fixedly connected to the outer surface of the rotating rod, and a rotating speed sensor is installed on the top surface of the top plate.

[0012] Preferably, a mounting plate is fixedly connected to the top of the water flow channel, the side plate is provided with two, and the two side plates are fixedly connected to the inner wall of the water flow channel through bolts.

[0013] Preferably, a rectangular hole is formed in the top of the mounting plate, a vertical plate is fixedly connected to the top of the mounting plate, and the output shaft of a servo motor is rotatably connected in the vertical plate.

[0014] Preferably, a plurality of water blocking plates are arranged at equal intervals along the vertical direction of the side plate, and the transmission rod is rotatably connected in the inside of the ear plate.

[0015] Compared with the prior art, the water conservancy power generation automatic control device has the following beneficial effects:

[0016] 1. When the opening degree of the water blocking plate needs to be adjusted, the servo motor is started, the transmission rod is driven to rotate through the transmission structure such as the sprocket and the chain, the curved plate, the adjusting plate, the connecting plate and the L-shaped supporting plate are moved, and finally the water blocking plate rotates around the rotating shaft to change the opening degree, so that the water flow is adjusted, and different power generation requirements can be met.

[0017] 2. The water flows through the water flow channel, flows into the circular flow channel, and then enters the volute to impact the impeller to rotate, the impeller drives the rotating rod, the rotating rod drives the generator set to rotate to generate electricity, and at the same time, the rotating speed of the rotating rod is detected through the rotating speed sensor, the speed regulating assembly is controlled by the PLC controller, the water flow speed and the rotating speed of the impeller can be accurately adjusted, the frequency of the output electric energy meets the power supply requirements, and the electric energy quality is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a three-dimensional schematic view of the structure of the utility model;

[0019] Figure 2 is a side view of the volute, rotating rod and other components of the structure of the utility model;

[0020] Figure 3 is a three-dimensional schematic view of the speed regulating assembly in the structure of the utility model;

[0021] Figure 4 is a cross-sectional schematic view of the speed regulating assembly in the structure of the utility model.

[0022] Wherein: 1, water flow passage; 2, circular flow channel; 3, volute; 4, impeller; 5, top plate; 6, generator set; 7, rotating rod; 8, speed regulating assembly; 81, side plate; 82, rotating shaft; 83, water blocking plate; 84, L-shaped supporting plate; 85, connecting plate; 86, adjusting plate; 87, curved plate; 88, transmission rod; 89, chain wheel one; 810, chain; 811, chain wheel two; 812, servo motor; 813, mounting plate; 814, lug plate; 9, rotating plate; 10, rotating speed sensor. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Please refer to Figures 1-4 A reservoir water conservancy power generation automatic control device, including water flow passage 1, the downstream end of water flow passage 1 is connected with circular flow channel 2, the bottom center of circular flow channel 2 is installed with volute 3, the inside rotation of volute 3 is provided with impeller 4, the top of volute 3 is connected with top plate 5 by bolt, the top surface of top plate 5 is installed with generator set 6, the input end of generator set 6 is connected with rotating rod 7, the inner wall of upstream section of water flow passage 1 is installed with speed regulating assembly 8;

[0025] The speed regulating assembly 8 comprises a side plate 81, the inside of the side plate 81 is rotationally connected with a rotating shaft 82, one end of the rotating shaft 82 is fixedly connected with a water blocking plate 83 through bolts, the back surface of the water blocking plate 83 is fixedly connected with an L-shaped supporting plate 84 through bolts, the side surface of the L-shaped supporting plate 84 is rotationally connected with a connecting plate 85, the outer surface of the connecting plate 85 is rotationally connected with an adjusting plate 86, one end of the adjusting plate 86 is rotationally connected with a curved plate 87, the outer surface of the curved plate 87 is fixedly connected with a transmission rod 88, the outer surface of the transmission rod 88 is fixedly connected with a chain wheel one 89, the chain wheel one 89 is meshingly connected with a chain 810, the chain 810 is meshingly connected with a chain wheel two 811, the end surface of the chain wheel two 811 is fixedly connected with the output shaft of a servo motor 812, the bottom surface of the servo motor 812 is connected with a mounting plate 813, the side surface of the side plate 81 is fixedly connected with an ear plate 814.

[0026] Specifically, the bottom of the circular flow channel 2 is provided with a circular hole, and the worm shell 3 is installed in the circular hole.

[0027] Specifically, the outer surface of the rotating rod 7 is fixedly connected with a rotating plate 9, and the top surface of the top plate 5 is provided with a rotating speed sensor 10.

[0028] The water flows into the circular flow channel 2 through the water flow channel 1, the circular flow channel 2 is used for guiding the water flow into the worm shell 3, at this time, the water flow will impact the impeller 4 to make it rotate, the circular flow channel 2 provides water flow conditions for the rotation of the impeller 4, since the top surface center of the impeller 4 is connected with the rotating rod 7 through bolts, the rotating rod 7 is driven to rotate when the impeller 4 rotates, and the rotation of the rotating rod 7 is finally transmitted to the input end of the generator set 6 to drive the generator set 6 to operate, realizing the conversion of mechanical energy into electrical energy; when the rotating rod 7 rotates, the rotating plate 9 is also driven to rotate, and the rotating plate 9 passes through the probe of the rotating speed sensor 10 every time it rotates, so that the rotating speed sensor 10 can detect the rotating speed of the rotating plate 9, and then the rotating speed of the rotating rod 7 is known, and a PLC controller can be installed on the top plate 5 for connecting the servo motor 812 and the rotating speed sensor 10, so that the rotating speed of the water flow can be adjusted by controlling the speed regulating assembly 8 through the PLC controller, and the rotating speed of the impeller 4 can be adjusted with the change of the water flow speed, so that the rotating speed of the water wheel in the water turbine generator set 6 can be accurately controlled, which can ensure that the frequency of the output electrical energy meets the power supply requirements and improves the quality of the electrical energy.

[0029] Specifically, the top of the water flow channel 1 is fixedly connected with the mounting plate 813, and the side plate 81 is provided with two, and the two side plates 81 are fixedly connected to the inner wall of the water flow channel 1 through bolts.

[0030] Specifically, the top of the mounting plate 813 is provided with a rectangular hole, and the top of the mounting plate 813 is fixedly connected with a vertical plate, and the vertical plate is rotationally connected with the output shaft of the servo motor 812.

[0031] Specifically, the water blocking plates 83 are arranged at equal intervals along the vertical direction of the side plates 81, and the inside of the ear plate 814 is rotatably connected to the transmission rod 88.

[0032] The advantage is that when the opening of the water blocking plate 83 needs to be adjusted, the servo motor 812 is started, the output shaft of the servo motor 812 drives the sprocket wheel two 811 to rotate, the chain 810 moves along with the sprocket wheel two 811, the chain 810 further drives the sprocket wheel one 89 to rotate, the sprocket wheel one 89 drives the transmission rod 88 to rotate, the transmission rod 88 rotates synchronously with the curved plate 87 fixedly connected to the transmission rod 88, the curved plate 87 rotates to drive the adjusting plate 86 to move, the adjusting plate 86 moves along with the L-shaped supporting plate 84 through the connecting plate 85, the L-shaped supporting plate 84 is fixedly connected to the water blocking plate 83, and finally the water blocking plate 83 rotates around the rotating shaft 82 to change the opening of the water blocking plate 83, so that the water flow is adjusted.

[0033] In use, water flows into the circular flow channel 2 through the water flow channel 1, the circular flow channel 2 guides the water flow to the volute 3, the water flow drives the impeller 4 to rotate, the impeller 4 is connected to the rotating rod 7 at the center of the top surface of the impeller 4, the impeller 4 drives the rotating rod 7 to rotate, the rotating rod 7 drives the input end of the generator set 6 to rotate to realize the conversion from mechanical energy to electric energy; when the rotating rod 7 drives the rotating plate 9 to rotate, the rotating plate 9 rotates past the probe of the rotating speed sensor 10 each time, the rotating speed sensor 10 detects the rotating speed of the rotating plate 9 and further obtains the rotating speed of the rotating rod 7; when the water flow speed needs to be adjusted to control the rotating speed of the impeller 4, the PLC controller installed on the top plate 5 drives the servo motor 812 and the rotating speed sensor 10 to act; the servo motor 812 is started, the output shaft of the servo motor 812 drives the sprocket wheel two 811 to rotate, the chain 810 moves along with the sprocket wheel two 811 and drives the sprocket wheel one 89 to rotate, the sprocket wheel one 89 drives the transmission rod 88 to rotate, the curved plate 87 rotates synchronously, the curved plate 87 drives the adjusting plate 86 to move, the adjusting plate 86 drives the L-shaped supporting plate 84 to move through the connecting plate 85, and finally the water blocking plate 83 rotates around the rotating shaft 82 to change the opening of the water blocking plate 83, so that the water flow is adjusted, the rotating speed of the water wheel in the water turbine generator set 6 is accurately controlled, the frequency of the output electric energy meets the power supply requirement, and the electric energy quality is improved.

[0034] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A reservoir hydroelectric power generation automatic control device, comprising a water flow passage (1), characterized in that: The downstream end of the water flow channel (1) is connected with a circular flow channel (2), the bottom center of the circular flow channel (2) is provided with a volute (3), the inside of the volute (3) is provided with an impeller (4) which rotates, the top of the volute (3) is connected with a top plate (5) through bolts, the top surface of the top plate (5) is provided with a generator set (6), the input end of the generator set (6) is connected with a rotating rod (7), the upstream wall of the water flow channel (1) is provided with a speed regulating assembly (8). The speed regulating assembly (8) comprises a side plate (81), the inside of the side plate (81) is rotatably connected with a rotating shaft (82), one end of the rotating shaft (82) is fixedly connected with a water blocking plate (83) through bolts, the back surface of the water blocking plate (83) is connected with an L-shaped supporting plate (84) through bolts, the side surface of the L-shaped supporting plate (84) is rotatably connected with a connecting plate (85), the outer surface of the connecting plate (85) is rotatably connected with an adjusting plate (86), one end of the adjusting plate (86) is rotatably connected with a curved plate (87), the outer surface of the curved plate (87) is fixedly connected with a transmission rod (88), the outer surface of the transmission rod (88) is fixedly connected with a chain wheel one (89), the chain wheel one (89) is meshingly connected with a chain (810), the chain (810) is meshingly connected with a chain wheel two (811), the end surface of the chain wheel two (811) is fixedly connected with the output shaft of a servo motor (812), the bottom surface of the base of the servo motor (812) is connected with a mounting plate (813), the side surface of the side plate (81) is fixedly connected with an ear plate (814).

2. The automatic control device for reservoir hydroelectric generation according to claim 1, characterized in that: The bottom of the circular flow channel (2) is provided with a circular hole, the volute (3) is installed in the circular hole, and the top surface center of the impeller (4) is connected with the rotating rod (7) through bolts.

3. The automatic control device for reservoir hydroelectric generation according to claim 1, characterized in that: The outer surface of the rotating rod (7) is fixedly connected with a rotating plate (9), and the top surface of the top plate (5) is provided with a rotating speed sensor (10).

4. The automatic control device for reservoir hydroelectric generation according to claim 1, characterized in that: The top of the water flow channel (1) is connected with the mounting plate (813) through bolts, and the side plate (81) is provided with two, and the two side plates (81) are connected with the inner wall of the water flow channel (1) through bolts.

5. The automatic control device for reservoir hydroelectric generation according to claim 1, characterized in that: The top of the mounting plate (813) is provided with a rectangular hole, and the top of the mounting plate (813) is fixedly connected with a vertical plate, and the inside of the vertical plate is rotatably connected with the output shaft of the servo motor (812).

6. The automatic control device for reservoir hydroelectric generation according to claim 1, characterized in that: The water blocking plate (83) is provided with a plurality of water blocking plates which are equidistantly arranged along the vertical direction of the side plate (81), and the inside of the ear plate (814) is rotatably connected with the transmission rod (88).

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