Residual pressure water supply cooling device of water-turbine generator set

Abstract

The utility model relates to the technical field of water wheel power generation, and discloses an excess pressure water supply cooling device of a water-turbine generator set, which comprises a water channel, a support I and a support II which stretch across the water channel, a water wheel I which is arranged on the support I and above the water channel, a water wheel II which is arranged on the support II and above the water channel, and a generator I which is arranged on one side of the water wheel I, a second power generator is arranged on the side, close to the first power generator, of the second water wheel and coaxial with the second water wheel, the second power generator is installed on the second support and electrically connected with a storage battery, and a spraying set is arranged on one side of the first power generator. The first water wheel rotates along with water flow to drive the first generator to rotate for power generation, after the water flow in the water channel passes through the first water wheel, the flow speed is reduced, the water pressure is reduced, the residual pressure continues to push the second water wheel to rotate, and the second generator is driven to generate power; the storage battery drives the water pump to convey water flow to the spraying head of the spraying head frame for spraying so as to cool the first generator.

Description

Technical Field

[0001] This utility model relates to the field of hydropower generation, and in particular to a residual pressure water supply cooling device for hydropower generator sets. Background Technology

[0002] The significance of timely cooling of generators lies in preventing overheating, ensuring their normal operation, and extending their service life. During operation, generators generate energy losses, which are converted into heat, causing the generator rotor and stator to heat up. If not cooled in time, the generator temperature will continue to rise, thus affecting its normal operation. The heat generated during generator operation will also raise the temperature of the winding insulation material, leading to a decrease in insulation strength and even causing insulation breakdown accidents.

[0003] According to the description in the patent website of a hydro-generator (authorization announcement number: CN219509741U), "a hydro-generator includes a rotating component and a power generation component. The rotating component includes a base, a rotating shaft, a support frame and a water wheel. The rotating shaft is rotatably mounted on the support frame, the support frame is mounted on the base, the water wheel is sleeved on the rotating shaft and can rotate with the rotating shaft, and the power output terminal of the generator set is connected to a transformer."

[0004] Regarding the above description, the applicant believes the following issues exist:

[0005] In the process of using this utility model, since a hydro-generator includes a rotating component and a power generation component, and the power output terminal of the generator set is connected to a transformer, the generator generates a lot of heat when it is working. If this heat cannot be cooled in time, it will easily damage the generator. Therefore, it is necessary to improve the residual pressure water supply cooling device of the hydro-generator set to solve the above problems. Utility Model Content

[0006] In order to overcome the problem that existing generators generate a lot of heat when they are working, and this heat cannot be cooled in time, which can easily damage the generator.

[0007] The technical solution of this utility model is as follows: a residual pressure water supply cooling device for a hydro-generator set, including a water channel, a support 1 and a support 2 spanning the water channel, a water turbine 1 located on the support 1 above the water channel, a water turbine 2 located on the support 2 above the water channel, a generator 1 located on one side of the water turbine 1, and a generator 2 located on the side of the water turbine 2 close to the generator 1 and coaxially with the water turbine 2, the generator 2 is mounted on the support 2, the generator 2 is electrically connected to a storage battery, and a spray group is located on one side of the generator 1. The spray group includes a spray head frame, a spray head, and a water pump. The spray head is located above the generator 1, and the storage battery is electrically connected to the water pump.

[0008] Preferably, a waterwheel 1 mounted above the waterway rotates with the water flow, thereby driving a generator 1 to generate electricity. A waterwheel 2 is located behind the waterwheel 1. After the water flows through the waterwheel 1, the flow velocity decreases and the water pressure decreases. The residual pressure continues to drive the waterwheel 2 to rotate, driving the generator 2 to generate electricity. The electricity generated by the generator 2 is stored in a battery. The battery drives a water pump to draw water from the waterway using a hose, and then transmits the water flow through the hose to the spray heads of the sprinkler head frame for spraying to cool the generator 1.

[0009] Preferably, a gear 2 is provided on the side of the water turbine 1 near the generator 1. The generator 1 includes a gear 1, and the gear 1 and gear 2 are connected by a chain 1. The chain 1 connects the gear 2 on the water turbine 1 and the gear 1 on the generator 1 to drive the generator 1 to generate electricity.

[0010] Preferably, a movable plate is provided on the side of the waterway away from the generator 2. A movable frame 2 is provided on the movable plate in the area corresponding to the water wheel 2, and a movable frame 1 is provided on the movable plate in the area corresponding to the water wheel 1. A roller 1 passes through the movable frame 1, and a roller 2 passes through the movable frame 2. A groove 1 is provided on the side of the water wheel 1 near the roller 1, and a groove 2 is provided on the side of the water wheel 2 near the roller 2. The roller 1 can drive the groove 1 to rotate, and the roller 2 can drive the groove 2 to rotate. By having the roller 2 correspond to the groove 2 and the roller 1 correspond to the groove 1, the mutual correspondence of the positions facilitates driving.

[0011] Preferably, roller one is provided with a boss one corresponding to groove one, and roller two is provided with a boss two corresponding to groove two. The boss one is inserted into groove one, and the boss two is inserted into groove two to improve the rotation efficiency of roller one and roller two.

[0012] Preferably, the roller one is provided with a driving gear on the side away from the boss one, and the roller two is provided with a driven gear on the side away from the boss two. The driving gear and the driven gear are connected by a chain two, which connects the driving gear and the driven gear and transmits the rotation of the driving gear to the driven gear.

[0013] Preferably, the bottom of the movable plate is provided with a lead screw nut seat, which is engaged with a threaded rod perpendicular to the water wheel. One end of the threaded rod is connected to an electric motor. The movable plate is moved by the lead screw nut seat and the threaded rod driven by the electric motor.

[0014] Preferably, sliders are provided on both sides of the lead screw nut seat at the bottom of the moving plate, and slide rails corresponding to the sliders are provided on the side of the water channel. The movement of the moving plate is more stable through the cooperation between the sliders and the slide rails.

[0015] The beneficial effects of this utility model are as follows: Compared with a water turbine generator set whose power output terminal is connected to a transformer and lacks a cooling device, the water turbine mounted above the waterway rotates with the water flow, thereby driving the generator to rotate and generate electricity. The water turbine is located behind the water turbine. After the water flows through the water turbine, the flow velocity and water pressure decrease. The residual pressure continues to drive the water turbine to rotate, driving the generator to generate electricity. The electricity generated by the generator is stored in a battery. The battery drives a water pump to draw water from the waterway through a rubber hose, and then transmits the water flow through the rubber hose to the spray head of the sprinkler frame for spraying to cool the generator. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the roller structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the gear structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the groove structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the lead screw nut seat structure of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Waterway; 2. Support 1; 21. Waterwheel 1; 22. Generator 1; 221. Gear 1; 222. Gear 2; 223. Chain 1; 23. Groove 1; 24. Roller 1; 241. Boss 1; 242. Drive gear; 25. Chain 2; 3. Support 2; 31. Waterwheel 2; 32. Generator 2; 33. Groove 2; 34. Roller 2; 341. Boss 2; 342. Driven gear; 5. Water pump; 6. Battery; 71. Moving frame 1; 72. Moving frame 2; 73. Moving plate; 731. Screw nut seat; 74. Slider; 75. Slide rail; 76. Motor; 77. Threaded rod; 81. Sprinkler head frame; 811. Sprinkler head. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5This utility model provides an embodiment of a residual pressure water cooling device for a hydro-generator set, including a waterway 1, a support 2 and a support 3 spanning the waterway 1, a water turbine 21 mounted on the support 2 above the waterway 1, a water turbine 31 mounted on the support 3 above the waterway 1, a generator 22 mounted on one side of the water turbine 21, and a generator 32 mounted on the side of the water turbine 31 near the generator 22 and coaxially with the water turbine 31. The generator 32 is mounted on the support 3 and electrically connected to a battery 6. A spray assembly is located on one side of the generator 22, the spray assembly including a nozzle frame 81, a spray head 811, a water pump 5, and a spray head 811. Located above generator 22, battery 6 is electrically connected to water pump 5. Water wheel 21, mounted above waterway 1, rotates with the water flow, thereby driving generator 22 to generate electricity. Water wheel 31, located behind water wheel 21, reduces the flow velocity and water pressure in waterway 1 after passing water wheel 21. The residual pressure continues to drive water wheel 31 to rotate, driving generator 32 to generate electricity. The electricity generated by generator 32 is stored in battery 6. Battery 6 drives water pump 5 to draw water from waterway 1 through a hose, and then transmits the water flow through the hose to the spray head 811 of spray head frame 81 for spraying to cool generator 22.

[0024] Please see Figures 1-4In this embodiment, a gear 222 is provided on the side of waterwheel 21 near generator 22. Generator 22 includes gear 221. Gear 221 and gear 222 are connected by chain 223. The chain 223 connects gear 222 on waterwheel 21 and gear 221 on generator 22, driving generator 22 to generate electricity. A movable plate 73 is provided on the side of waterway 1 away from generator 23. A movable frame 72 is provided on the movable plate 73 corresponding to the area of ​​waterwheel 231. A movable frame 71 is provided on the movable plate 73 corresponding to the area of ​​waterwheel 21. A roller 24 passes through the movable frame 71, and a roller 34 passes through the movable frame 72. A groove 23 is provided on the side of waterwheel 21 near roller 24, and a groove 33 is provided on the side of waterwheel 21 near roller 34. Roller 24 can drive groove 23. The roller 2 34 rotates, driving the groove 2 33 to rotate. The roller 2 34 corresponds to the groove 2 33, and the roller 1 24 corresponds to the groove 1 23. The mutual correspondence of the positions facilitates the drive. The roller 1 24 has a boss 241 corresponding to the groove 1 23, and the roller 2 34 has a boss 241 corresponding to the area of ​​the groove 2 33. The boss 241 is inserted into the groove 1 23. The insertion of the boss 241 into the groove 2 33 improves the rotation efficiency of the roller 1 24 and the roller 2 34. The side of the roller 1 24 away from the boss 241 has a driving gear 242, and the side of the roller 2 34 away from the boss 241 has a driven gear 342. The driving gear 242 and the driven gear 342 are connected by a chain 2 25. The chain 2 25 connects the driving gear 242 and the driven gear 342, transmitting the rotation of the driving gear 242 to the driven gear 342.

[0025] Please see Figures 3-5 In this embodiment, the bottom of the movable plate 73 is provided with a lead screw nut seat 731, and the lead screw nut seat 731 is engaged with a threaded rod 77 perpendicular to the water wheel 21. One end of the threaded rod 77 is connected to a motor 76. The movable plate 73 is moved by the lead screw nut seat 731 and the threaded rod 77 driven by the motor 76. Slider 74 is provided on both sides of the lead screw nut seat 731 at the bottom of the movable plate 73. A slide rail 75 corresponding to the slider 74 is provided on the side of the water channel 1. The movement of the movable plate 73 is more stable by the cooperation between the slider 74 and the slide rail 75.

[0026] During operation, water flows from waterwheel 21 to waterwheel 31. The rotation of waterwheel 21 drives gear 222, which in turn drives gear 221 on generator 22 via chain 223. Generator 222 then begins generating electricity. Generators 22 and 32 are existing technologies, and their working principles will not be elaborated here. Since generator 22 is a high-power generator, it generates heat during operation. Generator 22 also has a waterproof casing. When the water flow in waterway 1 passes waterwheel 21, the flow decreases and the water pressure slows down. The residual pressure in waterway 1 continues to drive waterwheel 31, which in turn drives generator 32. The electricity generated by generator 32 is stored in battery 6 via cable. A transformer and AC-to-DC converter are also present. In operation, the battery 6 provides power to drive the water pump 5. The inlet of the water pump 5 is connected to the water channel 1 through a hose to draw water from the source. The outlet of the water pump 5 is connected to the spray head 811 on the spray head frame 81 through a hose to spray water onto the generator 22 to cool it. When the residual pressure in the water channel 1 is insufficient to drive the water wheel 31, the water wheel 31 needs to be given initial rotational power. The moving plate 73 is moved towards the water wheel 21 by controlling the motor 76. The boss 241 of the roller 24 on the moving frame 71 is inserted into the groove 23. The boss 341 of the roller 34 on the moving frame 72 is inserted into the groove 33. The driving gear 242 drives the driven gear 342 to rotate through the chain 25, thereby driving the water wheel 31 to rotate. After the initial rotational power is applied to the water wheel 31, the moving plate 73 moves backward.

[0027] Through the above steps, the waterwheel 21 mounted above the waterway 1 rotates with the water flow, thereby driving the generator 22 to rotate and generate electricity. The waterwheel 31 on the waterway 1 is located behind the waterwheel 21. After the water flows through the waterwheel 21, the flow velocity and water pressure in the waterway 1 decrease. The residual pressure continues to drive the waterwheel 31 to rotate, driving the generator 32 to generate electricity. The electricity generated by the generator 32 is stored in the battery 6. The battery 6 drives the water pump 5 to draw water from the waterway 1 through a hose. The water is then transmitted through the hose to the spray head 811 of the spray head frame 81 for spraying to cool the generator 22. This solves the problem in the prior art that the generator generates a lot of heat when it is working, and this heat cannot be cooled in time, which can easily damage the generator.

Claims

1. A residual pressure water supply cooling device for a hydro-generator set, characterized in that: It includes a waterway (1), a support 1 (2) and a support 2 (3) spanning the waterway (1), a waterwheel 1 (21) located above the waterway (1) on the support 1 (2), a waterwheel 2 (31) located above the waterway (1) on the support 2 (3), a generator 1 (22) located on one side of the waterwheel 1 (21), a generator 2 (32) located on the side of the waterwheel 2 (31) close to the generator 1 (22) and coaxially with the waterwheel 2 (31), the generator 2 (32) is mounted on the support 2 (3), the generator 2 (32) is electrically connected to a storage battery (6), a sprinkler group is located on one side of the generator 1 (22), the sprinkler group includes a sprinkler head frame (81), a sprinkler head (811), and a water pump (5), the sprinkler head (811) is located above the generator 1 (22), and the storage battery (6) is electrically connected to the water pump (5).

2. The residual pressure water supply cooling device for a hydro-generator unit according to claim 1, characterized in that: A gear 2 (222) is provided on the side of the water turbine (21) near the generator (22). The generator (22) includes a gear 1 (221), and the gear 1 (221) and the gear 2 (222) are connected by a chain 1 (223).

3. The residual pressure water supply cooling device for a hydro-generator unit according to claim 2, characterized in that: A movable plate (73) is provided on the side of the waterway (1) away from the generator (2) (32). A movable frame (72) is provided on the movable plate (73) in the area corresponding to the waterwheel (31). A movable frame (71) is provided on the movable plate (73) in the area corresponding to the waterwheel (1) (21). A roller (24) is provided through the movable frame (71). A roller (34) is provided through the movable frame (72). A groove (23) is provided on the side of the waterwheel (1) (21) near the roller (24). A groove (33) is provided on the side of the waterwheel (21) (31) near the roller (34). The roller (24) can drive the groove (23) to rotate. The roller (34) can drive the groove (33) to rotate.

4. The residual pressure water supply cooling device for a hydro-generator unit according to claim 3, characterized in that: Roller 1 (24) has a boss 1 (241) corresponding to groove 1 (23), and roller 2 (34) has a boss 2 (341) corresponding to groove 2 (33).

5. The residual pressure water supply cooling device for a hydro-generator unit according to claim 4, characterized in that: Roller 1 (24) has a drive gear (242) on the side away from boss 1 (241), and roller 2 (34) has a driven gear (342) on the side away from boss 2 (341). The drive gear (242) and the driven gear (342) are connected by chain 2 (25).

6. The residual pressure water supply cooling device for a hydro-generator unit according to claim 3, characterized in that: The bottom of the movable plate (73) is provided with a screw nut seat (731), and the screw nut seat (731) is engaged with a threaded rod (77) perpendicular to the water turbine (21). One end of the threaded rod (77) is connected to an electric motor (76).

7. The residual pressure water supply cooling device for a hydro-generator unit according to claim 6, characterized in that: At the bottom of the movable plate (73), sliders (74) are provided on both sides of the lead screw nut seat (731), and slide rails (75) corresponding to sliders (74) are provided on the side of the waterway (1).

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