A hydroelectric river diversion gate

Abstract

The present invention relates to the field of hydropower generation technology, and discloses a hydropower river diversion gate, including a sluice gate, which includes a frame and a gate arranged inside the frame; a blocking unit, which is used to block the inside of a water flow channel, so that the water body inside the water flow channel and the water body outside the water flow channel are separated, thereby isolating the inner and outer water bodies; and a drainage 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. When the gate is closed, the present invention synchronously drives the blocking plate to move upward to form a physical partition of the water flow channel, fundamentally cutting off the connectivity between the water flow channel and the external water body. In addition, the retained water body in the water flow channel can be quickly discharged, solving the problem of easy residue in traditional bottom drainage, significantly reducing the environmental humidity when the turbine is shut down, reducing the risk of metal corrosion, and ensuring that the turbine can be out of the water environment under any working conditions.

Description

Technical Field

[0001] The present invention relates to the technical field of hydropower generation, and more particularly to a hydropower generation river diversion gate. Background Art

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

[0003] In existing technologies, the main gates of the river channel can only control the flow of water in the main river channel, while the connectivity between the water channel and the main river channel is not effectively cut off. When the main gates are closed, there is still about 30% to 50% stagnant water in the water channel. The turbine is immersed in water for a long time. Even when it is shut down, the periodic fluctuations of the river water level will be transmitted to the turbine through the connected water channel, generating a pulsating water flow with a frequency of 0.1 to 1 Hz. When the pulsating pressure amplitude exceeds 20 kPa, tiny bubbles will collapse on the impeller surface. Under long-term action, honeycomb cavitation pits will appear on the metal surface. This not only increases the risk of rust on mechanical components, but may also cause cavitation damage to the impeller due to water flow pulsation, seriously affecting the reliability of the equipment. Summary of the Invention

[0004] The present invention provides a hydroelectric river diversion gate to solve the technical problem in the related art that when a turbine is immersed in water for a long time, tiny bubbles will form on the impeller surface and collapse, which not only increases the risk of rusting of mechanical parts, but may also cause cavitation damage to the impeller due to water pulsation.

[0005] The present invention provides a hydroelectric river diversion gate, comprising a sluice gate, wherein the sluice gate comprises a frame and a gate arranged inside the frame, lifting rods are symmetrically installed on the gate, and a water flow channel is installed on one side of the frame; a hydroelectric power station, wherein the hydroelectric power station comprises a turbine arranged inside the water flow channel; a blocking unit, wherein the blocking unit is used to block the inside of the water flow channel to separate the water body inside the water flow channel and the water body outside the water flow channel, thereby isolating the internal and external water bodies; and a water discharge unit, wherein the water discharge unit is used to discharge the water body isolated inside the water flow channel to discharge the water body from the inside of the water flow channel.

[0006] As a further optimization scheme of the present invention, the blocking unit includes a blocking plate arranged inside the water flow channel, and sliding frames are installed on both sides of the blocking plate, the outside of the sliding frame is slidably connected to 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 the support seats are rotatably connected to a connecting arm through a rotating shaft, a guide groove is opened inside the connecting arm, and the inside of the guide groove is slidably connected to a guide column.

[0007] As a further optimization scheme of the present invention, a connecting frame is installed on the lifting rod, and a pressure rod is installed on the connecting frame. The pressure rod abuts against one end of the connecting arm away from the sealing plate. When the lifting rod is driven to rise, the connecting frame drives the pressure rod to move upward, releasing the abutment limit between the pressure rod and the connecting arm, so that the connecting arm rotates around the rotating shaft of the support seat, driving the sealing plate to move downward, and opening the water flow channel.

[0008] As a further optimization solution of the present invention, a limiting groove is provided inside the guide rail, the guide column and the limiting groove are slidably connected, and a first spring is provided inside the limiting groove.

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

[0010] As a further optimization scheme of the present invention, the drainage unit includes a drainage port opened at the bottom of the water flow channel, and a movable groove opened inside the water flow channel. The drainage port and the interior of the movable groove are connected, and the interior of the movable groove is slidably connected with a movable plate.

[0011] As a further optimization scheme of the present invention, guide plates are provided on both sides of the movable plate, a groove adapted to the guide plate is provided inside the water flow channel, a guide groove is provided inside the guide plate, and a traction column is slidably connected to the inside of the guide groove, the traction column is fixedly connected to the movable plate, a steel wire rope is installed on the guide plate, and a fixing bracket is installed on the end of the steel wire rope away from the guide plate through the water flow channel, and the fixing bracket is installed on the connecting arm.

[0012] As a further optimization scheme of the present invention, the guide groove is arranged at an angle. When the connecting arm drives the blocking plate to move upward, the wire rope is lifted upward, pulling the guide plate upward, so that the guide groove squeezes the traction column, forcing the traction column to slide inside the guide groove.

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

[0014] As a further optimization solution of the present invention, a water storage tank is installed at the bottom of the water flow channel to collect the river water remaining in the water flow channel.

[0015] The beneficial effects of this invention are that, when the gate is closed, the blocking plate is simultaneously driven upward, physically blocking the water channel and fundamentally cutting off the water channel's connectivity with the external water body. Furthermore, it can quickly drain any remaining water from the channel, resolving the problem of residual water in traditional bottom drainage. This significantly reduces ambient humidity during turbine shutdown, minimizing the risk of metal corrosion and ensuring that the turbine can be isolated from submerged environments under all operating conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0017] Figure 2 It is a schematic cross-sectional view of the structure of the present invention;

[0018] Figure 3 It is a schematic diagram of the positional relationship between the sluice and the water storage tank of the present invention;

[0019] Figure 4 It is a schematic diagram of a partial three-dimensional structure of the present invention;

[0020] Figure 5 It is a schematic diagram of the partial three-dimensional structure of the blocking unit of the present invention;

[0021] Figure 6 The present invention Figure 5 A magnified view of the structure at center A;

[0022] Figure 7 It is a schematic diagram of a partially cutaway three-dimensional structure of a blocking unit of the present invention;

[0023] Figure 8 It is a schematic diagram of the three-dimensional cross-sectional structure of the water flow channel of the present invention;

[0024] Figure 9 It is a schematic diagram of the partial three-dimensional structure of the drainage unit of the present invention.

[0025] In the figure: 100, sluice gate; 110, frame; 120, crossbeam; 130, gate; 140, lifting rod; 150, water flow channel; 160, bracket; 170, turbine; 200, blocking unit; 210, blocking plate; 220, sliding frame; 230, guide rail; 231, limit groove; 232, first spring; 240, support seat; 250, connecting arm; 260, guide groove; 270, guide column; 280, connecting frame; 290, pressure rod; 300, drain unit; 310, drain outlet; 320, movable groove; 330, movable plate; 340, guide plate; 350, guide groove; 360, traction column; 370, wire rope; 380, fixing frame; 390, second spring; 400, water tank; 500, base. DETAILED DESCRIPTION

[0026] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed solely to enable those skilled in the art to better understand and implement the subject matter described herein, and that the functions and arrangements of the elements discussed may be varied without departing from the scope of this specification. Various examples may omit, substitute, or add various processes or components as needed. In addition, features described with respect to some examples may also be combined in other examples.

[0027] According to the attached Figure 1 and attached Figure 2 As shown, a hydroelectric river diversion gate includes a sluice gate 100, which includes a frame 110. A crossbeam 120 is installed on the frame 110, and a gate 130 is provided 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 hydroelectric power station is provided on the water flow channel 150.

[0028] Specifically, during operation, a lifting device is mounted on the lifting rod 140 to control the raising or lowering of the lifting rod 140. When the lifting rod 140 is raised or lowered, the gate 130 moves synchronously, thereby opening or closing the sluice gate 100. It should be noted that the lifting device can be any of a hydraulic lifting device, a winch, and a screw drive mechanism. The raising and lowering of the gate 130 is conventional technology and will not be described in detail here.

[0029] The hydroelectric power station includes a bracket 160 mounted on a water channel 150, and a turbine 170 is mounted on the bracket 160. In this embodiment, the hydroelectric generator converts the potential energy of the water into kinetic energy, and then converts the mechanical energy into electrical energy through the turbine 170 and the generator set.

[0030] It should be understood that the hydroelectric power station also includes a generator set, and its core principle is to use the potential energy generated by the water level difference to drive the turbine 170 to rotate, thereby driving the generator set to generate electricity.

[0031] According to the attached Figure 3 , Attachment Figure 4 and attached Figure 5 As shown, a blocking unit 200 is provided inside the water flow channel 150, and 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 isolating the internal and external water bodies.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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 .

[0036] 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 .

[0037] On the contrary, when the lifting rod 140 is driven to descend, the connecting frame 280 drives the pressure rod 290 to move downward, and the pressure rod 290 squeezes the connecting arm 250, so that the connecting arm 250 rotates around the rotating axis of the support seat 240, and is slidably connected through the guide groove 260 and the guide column 270, driving the blocking plate 210 to move upward to block the water flow channel 150. At this time, the first spring 232 is subjected to tension and produces elastic deformation, thereby having a restoring force.

[0038] According to the attached Figure 8 and attached Figure 9 As shown, a drainage unit 300 is also provided inside the water flow channel 150. The drainage 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 drainage unit 300 includes a drainage 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 drainage port 310 and the interior of the movable groove 320 are connected, and a movable plate 330 is slidably connected to the interior of the movable groove 320. In this embodiment, the movement of the movable plate 330 controls the opening or closing of the drainage port 310, thereby controlling the water flow inside the water flow channel 150. When the drainage port 310 is open, water is discharged from the inside of the water flow channel 150; when the drainage port 310 is closed, water flows normally inside the water flow channel 150.

[0039] Among them, according to the attached Figure 9As shown, guide plates 340 are provided on both sides of the movable plate 330. A slot is provided inside the water flow channel 150 to match the guide plates 340. A guide slot 350 is provided inside the guide plate 340, and a traction post 360 is slidably connected to the inside of the guide slot 350. The traction post 360 is fixedly connected to the movable plate 330. A steel wire rope 370 is installed on the guide plate 340. The 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. In this embodiment, the provision of the steel wire rope 370 facilitates the upward movement of the guide plate 340. The inclined setting of the guide slot 350 and the sliding cooperation with the traction post 360 facilitate the movement of the movable plate 330.

[0040] Furthermore, a second spring 390 is installed between the movable groove 320 and the movable plate 330 .

[0041] According to the attached Figure 2 and attached Figure 3 As shown, a water tank 400 is installed at the bottom of the water flow channel 150. During operation, a water pump can be installed on the water tank 400 to discharge the river water inside the water tank 400 outwards.

[0042] It should be noted that when the connecting arm 250 drives the sealing plate 210 to move downward, the tensioned state of the wire rope 370 is released, the second spring 390 is released from compression and reset, and the movable plate 330 is driven to move inside the movable groove 320 under the action of the elastic restoring force of the second spring 390, so that the movable plate 330 closes the drain outlet 310.

[0043] On the contrary, when the connecting arm 250 drives the sealing plate 210 to move upward, the 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, thereby causing the second spring 390 to contract and have a restoring force. When the wire rope 370 is fully in a taut state, the drain outlet 310 is fully opened.

[0044] The above describes an embodiment of this specific implementation method, but this embodiment is not limited to the above specific implementation method. The above specific implementation method is merely illustrative and not restrictive. Ordinary technicians in this field can also make many forms based on the inspiration of this embodiment, all of which are protected by this embodiment.

Claims

1. A hydroelectric river diversion gate, characterized in that: include: A water gate (100), the water gate (100) comprising a frame (110) and a gate (130) disposed inside the frame (110), a lifting rod (140) being symmetrically mounted on the gate (130), and a water flow channel (150) being mounted on one side of the frame (110); A hydroelectric power station, the hydroelectric power station comprising a turbine (170) arranged inside a water flow channel (150); A blocking unit (200), the blocking unit (200) is used to block the interior of the water flow channel (150), thereby separating the water inside the water flow channel (150) from the water outside the water flow channel (150), thereby isolating the internal and external water bodies; 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 frame (220) is slidably connected to a guide rail (230), and the guide rail (230) is installed on the water flow channel (150), and support seats (240) are installed on both sides of the water flow channel (150), and the support seats (240) are rotatably connected to a connecting arm (250) via a rotating shaft, and a guide groove (260) is provided 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 mounted on the lifting rod (140), and a pressure rod (290) is mounted on the connecting frame (280). The pressure rod (290) abuts against one 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 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), driving the blocking plate (210) to move downward, thereby opening the water flow channel (150). A limiting groove (231) is provided inside the guide rail (230), the guide column (270) and the limiting groove (231) are in sliding connection, and a first spring (232) is provided inside the limiting groove (231); A water discharge unit (300) is used to discharge water isolated inside the water flow channel (150), so that the water is discharged from the inside of the water flow channel (150).

2. A hydropower river diversion gate according to claim 1, characterized in that: 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).

3. The hydropower river diversion gate according to claim 1, characterized in that: The water discharge unit (300) comprises a water discharge port (310) provided at the bottom of the water flow channel (150), and a movable groove (320) provided inside the water flow channel (150); the water discharge port (310) and the interior of the movable groove (320) are connected, and a movable plate (330) is slidably connected inside the movable groove (320).

4. A hydroelectric river diversion gate according to claim 3, characterized in that: Guide plates (340) are provided on both sides of the movable plate (330), a groove adapted to the guide plates (340) is provided inside the water flow channel (150), a guide groove (350) is provided inside the guide plate (340), and a traction column (360) is slidably connected inside the guide groove (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 an 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 frame (380), and the fixing frame (380) is installed on the connecting arm (250).

5. A hydroelectric river diversion gate according to claim 4, characterized in that: The guide groove (350) is arranged at an angle. When the connecting arm (250) drives the blocking 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).

6. The hydropower river diversion gate according to claim 4, characterized in that: A second spring (390) is installed between the movable groove (320) and the movable plate (330).

7. The hydropower river diversion gate 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 river water remaining in the water flow channel (150).

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