Hydroelectric generation river diversion gate

Abstract

The invention relates to the technical field of hydroelectric generation, and discloses a hydroelectric generation river diversion gate which comprises a water gate, and the water gate comprises a frame and a gate body arranged in the frame. The plugging unit is used for plugging the interior of the water flow channel, so that water inside the water flow channel is separated from water outside the water flow channel, and the water inside and outside is isolated; and the water drainage unit is used for discharging the water isolated in the water flow channel, so that the water is discharged from the interior of the water flow channel. When the gate is closed, the blocking plate is synchronously driven to move upwards, a physical partition of the water flow channel is formed, and the connectivity between the water flow channel and an external water body is fundamentally cut off. And moreover, the retention water body in the water flow channel can be quickly discharged, the problem that the traditional bottom drainage is easy to remain is solved, the environmental humidity during shutdown of the water turbine is obviously reduced, the metal corrosion risk is reduced, and the water turbine can be separated from the water soaking environment under any working condition.

Description

Technical Field

[0001] The present invention relates to the technical field of hydropower generation, and more specifically, it relates to a diversion sluice for a hydropower generation river channel. Background Art

[0002] In the fields of water conservancy projects and hydropower generation, a diversion sluice for a hydropower generation river channel is a key hydraulic structure applied in the field of hydropower generation. Its core function is to provide a stable water flow power input for the hydropower generation system through reasonable diversion and precise control of the river channel water flow, while realizing the protection and operation management of the power generation equipment.

[0003] In the prior art, the main gate of the river channel can only control the on-off of the water flow in the main river channel, and the connectivity between the water flow channel and the main river channel is not effectively cut off. When the main gate is closed, there is still about 30% - 50% of stagnant water in the water flow channel. The water turbine is immersed in water for a long time. Even in the shutdown state, the periodic fluctuation of the river channel water level will be transmitted to the water turbine through the connected water flow channel, generating a pulsating water flow with a frequency of 0.1 - 1 Hz. When the pulsation pressure amplitude exceeds 20 kPa, tiny bubbles will form and collapse on the surface of the impeller. Under long-term action, honeycomb-shaped cavitation pits will appear on the metal surface, which not only increases the risk of mechanical component corrosion, but also may cause impeller cavitation damage due to water flow pulsation, seriously affecting the reliability of the equipment. Summary of the Invention

[0004] The present invention provides a diversion sluice for a hydropower generation river channel, which solves the technical problems in the related art that the water turbine is immersed in water for a long time, tiny bubbles will form and collapse on the surface of the impeller, which not only increases the risk of mechanical component corrosion, but also may cause impeller cavitation damage due to water flow pulsation.

[0005] The present invention provides a diversion sluice for a hydropower generation river channel, including a sluice. The sluice includes a frame and a gate disposed inside the frame. Lifting rods are symmetrically installed on the gate. A water flow channel is installed on one side of the frame; a hydropower station, which includes a water turbine disposed inside the water flow channel; a blocking unit, which is used to block the inside of the water flow channel to separate the water body inside the water flow channel from the water body outside the water flow channel, so as to achieve isolation of the internal and external water bodies; a water discharge unit, which is used to discharge the water body isolated inside the water flow channel, so that the water body is discharged from the inside of the water flow channel.

[0006] As a further optimized solution of the present invention, the blocking unit includes a blocking plate disposed inside the water flow channel, and sliding frames are installed on both sides of the blocking plate. The outer part of the sliding frame is slidably connected with a guide rail, and the guide rail is installed on the water flow channel. Support seats are installed on both sides of the water flow channel, and connecting arms are rotatably connected to the support seats through a rotating shaft. A guiding groove is formed inside the connecting arm, and a guiding column is slidably connected inside the guiding groove.

[0007] As a further optimized solution of the present invention, a connecting frame is installed on the lifting rod, and a pressing rod is installed on the connecting frame. The pressing rod abuts against the end of the connecting arm far away from the blocking plate. When the lifting rod is driven to rise, the connecting frame drives the pressing rod to move upward, releasing the abutting limit between the pressing rod and the connecting arm, so that the connecting arm rotates around the rotating shaft of the support seat, driving the blocking plate to move downward to open the water flow channel.

[0008] As a further optimized solution of the present invention, a limiting groove is formed inside the guide rail, and the guiding column is slidably connected with the limiting groove. A first spring is arranged inside the limiting groove.

[0009] As a further optimized solution of the present invention, a base is arranged below the water flow channel, and a through groove for the blocking plate to pass through is formed inside the base.

[0010] As a further optimized solution of the present invention, the water discharge unit includes a water discharge port opened at the bottom of the water flow channel and a movable groove opened inside the water flow channel. The water discharge port and the movable groove are internally connected, and a movable plate is slidably connected inside the movable groove.

[0011] As a further optimized solution of the present invention, guiding plates are opened on both sides of the movable plate. A slot adapted to the guiding plate is opened inside the water flow channel. A guiding groove is formed inside the guiding plate, and a traction column is slidably connected inside the guiding groove. The traction column is fixedly connected to the movable plate. A steel wire rope is installed on the guiding plate, and one end of the steel wire rope far away from the guiding plate passes through the water flow channel and is installed with a fixing frame, and the fixing frame is installed on the connecting arm.

[0012] As a further optimized solution of the present invention, the guiding groove is inclined. When the connecting arm drives the blocking plate to move upward, the steel wire rope is lifted upward to pull the guiding plate upward, so that the guiding groove squeezes the traction column, forcing the traction column to slide inside the guiding groove.

[0013] As a further optimized solution of the present invention, a second spring is installed between the movable groove and the movable plate.

[0014] As a further optimization scheme of the present invention, a water storage tank is installed at the bottom of the water flow channel for collecting the residual river water in the water flow channel.

[0015] The beneficial effects of the present invention are as follows: When the gate is closed, the present invention synchronously drives the plugging plate to move upward to form a physical partition of the water flow channel, fundamentally cutting off the connection between the water flow channel and the external water body. Moreover, the stagnant water in the water flow channel can be quickly discharged, solving the problem that traditional bottom drainage is prone to residue, significantly reducing the environmental humidity when the water turbine stops, reducing the risk of metal corrosion, and ensuring that the water turbine can be separated from the waterlogged environment under any working conditions. Description of the Drawings

[0016] Figure 1 is a three-dimensional structural schematic diagram of the present invention; Figure 2 is a structural sectional schematic diagram of the present invention; Figure 3 is a schematic diagram of the positional relationship between the water gate and the water storage tank of the present invention; Figure 4 is a partial three-dimensional structural schematic diagram of the present invention; Figure 5 is a partial three-dimensional structural sectional schematic diagram of the plugging unit of the present invention; Figure 6 is of the present invention Figure 5 enlarged view of the structure at A in; Figure 7 is a partial three-dimensional structural sectional schematic diagram of the plugging unit of the present invention; Figure 8 is a three-dimensional sectional structural schematic diagram of the water flow channel of the present invention; Figure 9 is a partial three-dimensional structural schematic diagram of the water discharge unit of the present invention.

[0017] In the figure: 100, water gate; 110, frame; 120, cross beam; 130, gate; 140, lifting rod; 150, water flow channel; 160, support; 170, water turbine; 200, plugging unit; 210, plugging plate; 220, sliding frame; 230, guide rail; 231, limit groove; 232, first spring; 240, support seat; 250, connecting arm; 260, guiding groove; 270, guiding column; 280, connecting frame; 290, pressing rod; 300, water discharge unit; 310, water discharge port; 320, movable groove; 330, movable plate; 340, guiding plate; 350, guiding groove; 360, traction column; 370, steel wire rope; 380, fixed frame; 390, second spring; 400, water storage tank; 500, base. Detailed Embodiments

[0018] Reference will now be made to exemplary embodiments to discuss the subject matter described herein. It should be understood that discussing these embodiments is only to enable those skilled in the art to better understand and thus implement the subject matter described herein, and the functions and arrangements of the elements discussed can be changed without departing from the scope of protection of the content of this specification. Each example can omit, substitute, or add various processes or components as needed. Additionally, the features described relative to some examples can also be combined in other examples.

[0019] According to the appended Figure 1 and the appended Figure 2 As shown, a diversion sluice for a hydropower channel includes a sluice 100, the sluice 100 includes a frame 110, a crossbeam 120 is installed on the frame 110, and a gate 130 is arranged below the crossbeam 120. Lifting rods 140 are symmetrically installed on the gate 130, and the lifting rods 140 pass through the crossbeam 120 and extend to the upper surface of the frame 110. A water flow channel 150 is installed on one side of the frame 110, and a hydropower station is provided on the water flow channel 150.

[0020] Specifically, during operation, a lifting device is installed on the lifting rod 140 to control the lifting or lowering of the lifting rod 140; when controlling the lifting or lowering of the lifting rod 140, the gate 130 moves synchronously, causing the sluice 100 to open or close. It should be added that the lifting device can be any one of a hydraulic lifting device, a winch, and a lead screw drive mechanism; among them, the lifting of the gate 130 is a prior art and will not be elaborated in detail here.

[0021] Among them, the hydropower station includes a bracket 160 installed on the water flow channel 150, and a water turbine 170 is arranged on the bracket 160. In this embodiment, the hydropower generator converts the potential energy of the water body into kinetic energy, and then converts the mechanical energy into electrical energy through the water turbine 170 and the generator set.

[0022] It should be understood that the hydropower station also includes a generator set, and its core principle is to use the potential energy formed by the water level drop to drive the water turbine 170 to rotate, and then drive the generator set to generate electricity.

[0023] According to the appended Figure 3 、the appended Figure 4 and the appended Figure 5 As shown, a blocking unit 200 is arranged inside the water flow channel 150. The blocking unit 200 is used to block the inside of the water flow channel 150, so that the water body inside the water flow channel 150 and the water body outside the water flow channel 150 are separated, thereby achieving isolation of the internal and external water bodies.

[0024] Specifically, the blocking unit 200 includes a blocking plate 210 arranged inside the water flow channel 150, and sliding frames 220 are installed on both sides of the blocking plate 210, the outside of the sliding frame 220 is slidably connected to a guide rail 230, and the guide rail 230 is installed on the water flow channel 150, support seats 240 are installed on both sides of the water flow channel 150, and a connecting arm 250 is rotatably connected to the support seat 240 through a rotating shaft, a guide groove 260 is opened inside the connecting arm 250, and the inside of the guide groove 260 is slidably connected to a guide column 270, a connecting frame 280 is installed on the lifting rod 140, and a pressure rod 290 is installed on the connecting frame 280, and the pressure rod 290 abuts against the end of the connecting arm 250 away from the blocking plate 210.

[0025] It should be noted that the synchronous movement of the lifting rod 140 and the blocking unit 200 enables simultaneous control of the opening and closing of the sluice gate 100 and the blocking of the water channel 150, eliminating the time lag associated with traditional manual operation. When the gate 130 is opened, the blocking unit 200 automatically releases the blockage, allowing the water flow to directly drive the turbine 170 for power generation. When the gate 130 is closed, the blocking unit 200 simultaneously blocks the water channel 150, isolating the internal and external water bodies.

[0026] According to the attached Figure 6 and attached Figure 7 As shown, a limiting groove 231 is opened inside the guide rail 230, and the guide column 270 and the limiting groove 231 are slidably connected. A first spring 232 is provided inside the limiting groove 231, and one end of the first spring 232 is fixedly connected to the guide column 270, and the other end of the first spring 232 is fixedly connected to the limiting groove 231.

[0027] It should be understood that when the lifting rod 140 is driven to rise, the gate 130 rises synchronously, thereby opening the water gate 100 and allowing water to flow into the water flow channel 150 .

[0028] When the lifting rod 140 is driven to rise, the connecting frame 280 drives the pressure rod 290 to move upward, releasing the abutment limit between the pressure rod 290 and the connecting arm 250, so that the connecting arm 250 rotates around the rotating shaft of the support seat 240, and the blocking plate 210 is driven to move downward by the deadweight of the blocking plate 210 and the elastic contraction force of the first spring 232, thereby opening the water flow channel 150; wherein, according to the attached Figure 1 and attached Figure 2 As shown, a base 500 is provided below the water flow channel 150 , and a through slot for the blocking plate 210 to pass through is provided inside the base 500 .

[0029] Conversely, when the lifting rod 140 is driven to descend, the connecting frame 280 drives the pressing rod 290 to move downward. The pressing rod 290 squeezes the connecting arm 250, causing the connecting arm 250 to rotate around the rotating shaft of the support base 240. Through the sliding connection of the guiding groove 260 and the guiding column 270, the blocking plate 210 is driven to move upward to block the water flow channel 150. At this time, the first spring 232 is elastically deformed under tension, thus having a restoring force.

[0030] According to the appendix Figure 8 and the appendix Figure 9 As shown, a water discharge unit 300 is further provided inside the water flow channel 150. The water discharge unit 300 is used to discharge the water isolated inside the water flow channel 150, so that the water is discharged from the inside of the water flow channel 150. Specifically, the water discharge unit 300 includes a water discharge port 310 opened at the bottom of the water flow channel 150 and a movable groove 320 opened inside the water flow channel 150. The water discharge port 310 and the movable groove 320 are internally connected. A movable plate 330 is slidably connected inside the movable groove 320. In this embodiment, by moving the movable plate 330, the water discharge port 310 is controlled to be opened or closed, thereby controlling the water flow situation inside the water flow channel 150. When the water discharge port 310 is opened, the inside of the water flow channel 150 is drained. When the water discharge port 310 is closed, the water flow channel 150 is normally filled with water.

[0031] Among them, as shown in the appendix Figure 9 Both sides of the movable plate 330 are provided with guiding plates 340. A slot adapted to the guiding plate 340 is opened inside the water flow channel 150. A guiding groove 350 is opened inside the guiding plate 340, and a traction column 360 is slidably connected inside the guiding groove 350. The traction column 360 is fixedly connected to the movable plate 330. A steel wire rope 370 is installed on the guiding plate 340, and one end of the steel wire rope 370 away from the guiding plate 340 passes through the water flow channel 150 and is provided with a fixing frame 380. The fixing frame 380 is installed on the connecting arm 250. In this embodiment, through the setting of the steel wire rope 370, it is convenient to control the guiding plate 340 to move upward. And through the inclined setting of the guiding groove 350 and the sliding fit with the traction column 360, it is convenient to drive the movable plate 330 to move.

[0032] Furthermore, a second spring 390 is installed between the movable groove 320 and the movable plate 330.

[0033] According to the appendix Figure 2 and the appendix Figure 3 As shown, a water storage tank 400 is installed at the bottom of the water flow channel 150. During operation, a water pump can be installed on the water storage tank 400 to discharge the river water inside the water storage tank 400 to the outside.

[0034] It should be noted that when the connecting arm 250 drives the plugging plate 210 to move downward, the tension state of the steel wire rope 370 is released, and the second spring 390 is released from compression and resets. Under the action of the elastic restoring force of the second spring 390, the movable plate 330 is driven to move inside the movable groove 320, so that the movable plate 330 closes the water discharge port 310.

[0035] Conversely, when the connecting arm 250 drives the plugging plate 210 to move upward, the steel wire rope 370 is lifted upward, pulling the guiding plate 340 upward, so that the guiding groove 350 squeezes the traction column 360, forcing the traction column 360 to slide inside the guiding groove 350, so that the second spring 390 contracts and has a restoring force. When the steel wire rope 370 is completely in a tension state, the water discharge port 310 is completely opened.

[0036] The embodiments of the specific implementation manner above have been described, but the present embodiment is not limited to the above specific implementation manner. The above specific implementation manner is only illustrative and not restrictive. Under the inspiration of this embodiment, those of ordinary skill in the art can also make many forms, all of which fall within the protection scope of this embodiment.

Claims

1. A hydraulic power generation river diversion sluice, characterized in that, Comprising: A sluice (100), the sluice (100) includes a frame (110) and a gate (130) disposed inside the frame (110). Lifting rods (140) are symmetrically installed on the gate (130), and a water flow channel (150) is installed on one side of the frame (110); A hydropower station, which includes a water turbine (170) disposed inside the water flow channel (150); A blocking unit (200), the blocking unit (200) is used to block the inside of the water flow channel (150), so that the water body inside the water flow channel (150) is separated from the water body outside the water flow channel (150), thereby achieving isolation of the internal and external water bodies; A water discharging unit (300), the water discharging unit (300) is used to discharge the water body isolated inside the water flow channel (150), so that the water body is discharged from the inside of the water flow channel (150).

2. The water diversion sluice for hydropower generation according to claim 1, characterized in that, The blocking unit (200) includes a blocking plate (210) disposed inside the water flow channel (150), and sliding frames (220) are installed on both sides of the blocking plate (210). The outside of the sliding frames (220) is slidably connected to guide rails (230), and the guide rails (230) are installed on the water flow channel (150). Support seats (240) are installed on both sides of the water flow channel (150), and connecting arms (250) are rotatably connected to the support seats (240) through rotating shafts. A guiding groove (260) is formed inside the connecting arm (250), and a guiding column (270) is slidably connected inside the guiding groove (260).

3. A hydraulic power generation river diversion sluice according to claim 2, characterized in that, A connecting frame (280) is installed on the lifting rod (140), and a pressing rod (290) is installed on the connecting frame (280). The pressing rod (290) abuts against the end of the connecting arm (250) away from the blocking plate (210). When the lifting rod (140) is driven to rise, the connecting frame (280) drives the pressing rod (290) to move upward, releasing the abutting limit between the pressing rod (290) and the connecting arm (250), so that the connecting arm (250) rotates around the rotating shaft of the support seat (240), driving the blocking plate (210) to move downward to open the water flow channel (150).

4. A hydraulic power generation river diversion sluice according to claim 2, characterized in that, A limiting groove (231) is formed inside the guide rail (230), and the guiding column (270) is slidably connected to the limiting groove (231). A first spring (232) is disposed inside the limiting groove (231).

5. A hydraulic power generation river diversion sluice according to claim 3, characterized in that, A base (500) is disposed below the water flow channel (150), and a through groove for the blocking plate (210) to pass through is formed inside the base (500).

6. The hydroelectric river diversion gate according to claim 1, characterized in that: The water discharging unit (300) includes a water discharging port (310) formed at the bottom of the water flow channel (150), and a movable groove (320) formed inside the water flow channel (150). The water discharging port (310) is communicated with the inside of the movable groove (320), and a movable plate (330) is slidably connected inside the movable groove (320).

7. A hydraulic power generation river diversion sluice according to claim 6, characterized in that, On both sides of the movable plate (330), guide plates (340) are provided. Inside the water flow channel (150), slots adapted to the guide plates (340) are provided. Inside the guide plates (340), guide grooves (350) are provided, and a traction column (360) is slidably connected inside the guide grooves (350). The traction column (360) is fixedly connected to the movable plate (330). A steel wire rope (370) is installed on the guide plate (340), and one end of the steel wire rope (370) away from the guide plate (340) passes through the water flow channel (150) and is installed with a fixing bracket (380). The fixing bracket (380) is installed on the connecting arm (250).

8. A hydraulic power generation river diversion sluice according to claim 7, characterized in that, The guide groove (350) is inclined. When the connecting arm (250) drives the plugging plate (210) to move upward, the steel wire rope (370) is lifted upward, pulling the guide plate (340) upward, so that the guide groove (350) squeezes the traction column (360), forcing the traction column (360) to slide inside the guide groove (350).

9. A hydraulic power generation river diversion sluice according to claim 7, characterized in that A second spring (390) is installed between the movable groove (320) and the movable plate (330).

10. A hydraulic power generation river diversion sluice according to claim 1, characterized in that, A water storage tank (400) is installed at the bottom of the water flow channel (150) for collecting the remaining river water in the water flow channel (150).

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