In-reservoir gate applied to submersible hydroelectric power station

Abstract

The invention provides an in-reservoir gate applied to a submersible type hydroelectric power station, and relates to the technical field of water conservancy gates, the in-reservoir gate comprises a partition cement board, the partition cement board comprises a partition board body, an unfolding groove is formed in the outer surface of the partition board body, and a supporting seat is fixedly connected to the top of the partition board body; a transmission cavity is formed in the top of the partition plate body, and a supporting cavity is formed in the bottom of the transmission cavity. By arranging the transmission chain, the first transmission gear drives the second transmission gear to rotate, the two ends of the two gates are fixedly connected to the connecting shafts of the upper transmission gear and the lower transmission gear correspondingly, and therefore synchronous opening and closing of the first gate body and the second gate body are achieved; by arranging the first gate body and the second gate body which are synchronously unfolded, the water flow of river water rises faster when the gates are opened for draining water, the water flow of the river water drops faster when the gates are closed, the problem that deposited silt can not be washed away thoroughly is solved, and the overall surrounding environment can be improved.

Description

Technical Field

[0001] This invention relates to the field of hydraulic gate technology, and in particular to a reservoir gate for use in submersible hydroelectric power stations. Background Technology

[0002] With water level fluctuations of 20-30 meters between the wet and dry seasons, a dam and hydroelectric power plant are constructed at an appropriate location at the reservoir tail. This utilizes the difference in water level between the wet and dry seasons to generate electricity. Specifically, when the reservoir is at a high water level, the dam gates are opened, creating a "reservoir within a reservoir, dam within a dam" effect, submerging the submersible power plant. No power generation occurs during this period. When the reservoir water level drops to a point where the submersible power plant has the lowest head required for power generation, the dam gates are closed. Water from upstream flows through the turbine generators in the submersible power plant, generating electricity. The tailwater then returns to the original reservoir. This method does not require additional land occupation, fully utilizes hydropower resources, and has significant potential. It also addresses the issue of dryness and siltation in the reservoir tail section during the dry season, improving the environment without affecting the original reservoir's function or capacity. This is what is known as a submersible hydroelectric power plant. However, this submersible power plant uses traditional integrated gates. The flow rate of the river water passing through the gates during opening and closing is relatively slow, potentially failing to completely flush away accumulated silt. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies, such as low efficiency in opening and closing gates and slow flow of river water as it passes through the gates during the rising and falling processes. This invention provides a reservoir gate applicable to submersible hydroelectric power stations.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a reservoir gate for a submersible hydroelectric power station, comprising a partition cement slab, the partition cement slab comprising a partition plate body, the outer surface of the partition plate body having an unfolding groove, a support base fixedly connected to the top of the partition plate body, a transmission cavity formed at the top of the partition plate body, a support cavity formed at the bottom of the transmission cavity, a transmission component rotatably connected to the inner wall of the support base, the transmission component comprising a first transmission gear, a transmission chain meshing with the outer surface of the first transmission gear, a second transmission gear meshing with the bottom of the transmission chain, a first connecting shaft fixedly connected to both sides of the first transmission gear, a gate structure fixedly connected to one end of the first connecting shaft, the gate structure comprising a first gate body, a first rear support frame fixedly connected to one side of the first gate body, a second gate body provided at the bottom of the first gate body, a rear baffle fixedly connected to the top of the second gate body, and a second rear support frame fixedly connected to one side of the second gate body.

[0005] In a preferred embodiment, two support seats are provided, and the two support seats are respectively sleeved on both ends of the first connecting shaft.

[0006] In a preferred embodiment, a second connecting shaft is fixedly connected to both sides of the second transmission gear, and the second connecting shaft is rotatably connected to the inner wall of the support cavity.

[0007] In a preferred embodiment, the two ends of the first rear support frame are respectively fixedly connected to the outer surfaces of the first connecting shafts at both ends.

[0008] In a preferred embodiment, the two ends of the second rear support frame are respectively fixedly connected to the outer surfaces of the second connecting shafts at both ends.

[0009] In a preferred embodiment, the transmission chain moves within the transmission cavity.

[0010] In a preferred embodiment, both sides of the first gate body and the second gate body are slidably connected to the inner wall of the unfolding groove.

[0011] In a preferred embodiment, one side of the rear baffle is attached to the bottom of the first gate body.

[0012] Compared with the prior art, the advantages and positive effects of the present invention are as follows: This invention, by setting an unfolding groove, allows the first and second gate bodies to be blocked by the sides of the unfolding groove after closing, preventing excessive water flow from the sides of the gates after closure. Support seats, two on the top of each partition plate, support the rotation of the first transmission gear. A transmission chain drives the first transmission gear to rotate the second transmission gear. The two ends of the two gates are fixedly connected to the connecting shaft of the upper and lower transmission gears, thus achieving synchronous opening and closing of the first and second gate bodies. With two synchronously unfolding gate bodies, the water flow increases faster when the gates open and decreases faster when they close, effectively flushing away accumulated silt and further protecting the surrounding environment. For example, it addresses the problem of dirt and disorder in the reservoir tail section during the dry season, transforming it into a beautiful lake landscape. It also allows for the flexible use of dam gates to raise and stabilize water levels. Attached Figure Description

[0013] Figure 1 This invention provides a front-view perspective view of a reservoir gate used in a submersible hydroelectric power station.

[0014] Figure 2 This is a rear-view perspective view of a reservoir gate used in a submersible hydroelectric power station, provided by the present invention.

[0015] Figure 3This invention provides a perspective cross-sectional view of one side of the partition plate of a reservoir gate used in a submersible hydroelectric power station.

[0016] Figure 4 This invention provides a three-dimensional structural view of the gate opening mechanism of a reservoir gate used in a submersible hydroelectric power station.

[0017] Legend: 1. Partition cement board; 11. Partition board body; 12. Unfolding groove; 13. Support base; 14. Transmission cavity; 15. Support cavity; 2. Transmission components; 21. First transmission gear; 22. Transmission chain; 23. Second transmission gear; 3. Gate structure; 31. First gate body; 32. First rear support frame; 33. Second gate body; 34. Rear baffle; 35. Second rear support frame. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0019] like Figure 1-4As shown, the present invention provides a technical solution: a reservoir gate for a submersible hydroelectric power station, comprising a partition cement slab 1, the partition cement slab 1 comprising a partition plate body 11, an expansion groove 12 formed on the outer surface of the partition plate body 11, a support base 13 fixedly connected to the top of the partition plate body 11, a transmission cavity 14 formed on the top of the partition plate body 11, a support cavity 15 formed at the bottom of the transmission cavity 14, a transmission component 2 rotatably connected to the inner wall of the support base 13, the transmission component 2 comprising a first transmission gear 21, a transmission chain 22 meshing and transmitting on the outer surface of the first transmission gear 21, a second transmission gear 23 meshing and transmitting on the bottom of the transmission chain 22, a first connecting shaft fixedly connected to both sides of the first transmission gear 21, a gate structure 3 fixedly connected to one end of the first connecting shaft, the gate structure 3 comprising a first gate body 31, a first gate body 31 fixedly connected to one side of the first gate body 31, and a first connecting shaft 13 fixedly connected to the first connecting shaft. A rear support frame 32 is provided. A second gate body 33 is provided at the bottom of the first gate body 31. A rear baffle 34 is fixedly connected to the top of the second gate body 33. A second rear support frame 35 is fixedly connected to one side of the second gate body 33. Two support seats 13 are provided. The two support seats 13 are respectively sleeved on both ends of the first connecting shaft. The second transmission gear 23 is fixedly connected to both sides of the second connecting shaft. The second connecting shaft is rotatably connected to the inner wall of the support cavity 15. The two ends of the first rear support frame 32 are respectively fixedly connected to the outer surfaces of the first connecting shafts at both ends. The two ends of the second rear support frame 35 are respectively fixedly connected to the outer surfaces of the second connecting shafts at both ends. The transmission chain 22 moves inside the transmission cavity 14. The two sides of the first gate body 31 and the second gate body 33 are slidably connected to the inner wall of the unfolding groove 12. One side of the rear baffle 34 is attached to the bottom of the first gate body 31.

[0020] In this embodiment, by setting an unfolding groove 12, the first gate body 31 and the second gate body 33 can block the side of the unfolding groove 12 after closing, preventing a large amount of water from flowing out from both sides of the gate after the gate is closed. By setting a support base 13, and two of them are set on the top of each partition plate 11, the first transmission gear 21 is rotated. By setting a transmission chain 22, the first transmission gear 21 drives the second transmission gear 23 to rotate. The two ends of the two gates are respectively fixedly connected to the connecting shaft of the upper and lower transmission gears, thereby realizing the synchronous unfolding and closing of the first gate body 31 and the second gate body 33. By setting up two gate bodies 31 and 33 that open synchronously, the water flow rate of the river will increase faster when the gates are opened to release water, and the water flow rate will decrease faster when the gates are closed. The accumulated silt can be washed away, and the surrounding environment can be further protected.

[0021] By setting the first rear support frame 32 and the second rear support frame 35, the gate can be supported at the rear during the opening process. In addition, the first transmission gear 21 and the second transmission gear 23 at the top and inside of each partition plate 11 are connected in series through the first gate body 31 and the second gate body 33, respectively. Therefore, only two drive mechanisms are needed to control the first transmission gear 21 at both ends, so that the effect of opening and closing multiple gates at the same time can be achieved.

[0022] Working principle: like Figure 1-4 As shown, during actual operation, when the gate needs to be opened, the external drive mechanism drives the first transmission gear 21 at both ends to rotate clockwise. The first transmission gear 21 drives the first gate body 31 to rotate outward around the first connecting shaft through the first connecting shaft on both sides. At the same time, the first transmission gear 21 drives the second transmission gear 23 meshing with it to rotate counterclockwise through the transmission chain 22. The second transmission gear 23 then drives the second gate body 33 to rotate outward around the second connecting shaft through the second connecting shaft on both sides. During this process, the first rear support frame 32 rotates synchronously with the first connecting shaft, providing stable support for the rear of the first gate body 31. The second rear support frame 35 also rotates with the second connecting shaft, providing a similar support for the second gate body 33. The two sides of the first gate body 31 and the second gate body 33 slide smoothly in the inner wall of the unfolding groove 12 to ensure the smoothness of the flipping process. As the two gate bodies gradually unfold, the unfolding groove 12 is opened, and the water flow can pass through the opening area on the partition plate 11. When the gate needs to be closed, the drive mechanism drives the first transmission gear 21 to rotate counterclockwise. Through the above transmission relationship, the first gate body 31 and the second gate body 33 flip inward. Finally, the rear baffle 34 at the top of the second gate body 33 fits tightly against the bottom of the first gate body 31. Together, they close the unfolding groove 12, thereby blocking the water flow.

[0023] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A reservoir gate for a submersible hydroelectric power station, comprising a partition cement slab (1), characterized in that: The partition cement board (1) includes a partition board body (11), the outer surface of which is provided with an unfolding groove (12), a support base (13) is fixedly connected to the top of the partition board body (11), a transmission cavity (14) is provided at the top of the partition board body (11), a support cavity (15) is provided at the bottom of the transmission cavity (14), a transmission component (2) is rotatably connected to the inner wall of the support base (13), the transmission component (2) includes a first transmission gear (21), a transmission chain (22) is meshed and connected to the outer surface of the first transmission gear (21), and the bottom of the transmission chain (22) is connected to the transmission chain (22). The first transmission gear (21) is connected to the second transmission gear (23) through meshing transmission. The first transmission gear (21) is fixedly connected to both sides of the first transmission gear (21). The first connecting shaft is fixedly connected to one end of the first connecting shaft. The gate structure (3) includes a first gate body (31). A first rear support frame (32) is fixedly connected to one side of the first gate body (31). A second gate body (33) is provided at the bottom of the first gate body (31). A rear baffle (34) is fixedly connected to the top of the second gate body (33). A second rear support frame (35) is fixedly connected to one side of the second gate body (33).

2. A reservoir gate for a submersible hydroelectric power station according to claim 1, characterized in that: There are two support seats (13), and the two support seats (13) are respectively sleeved on both ends of the first connecting shaft.

3. A reservoir gate for a submersible hydroelectric power station according to claim 1, characterized in that: The second transmission gear (23) is fixedly connected to both sides of the second connecting shaft, which is rotatably connected to the inner wall of the support cavity (15).

4. A reservoir gate for a submersible hydroelectric power station according to claim 1, characterized in that: The two ends of the first rear support frame (32) are respectively fixedly connected to the outer surfaces of the first connecting shafts at both ends.

5. A reservoir gate for a submersible hydroelectric power station according to claim 1, characterized in that: The two ends of the second rear support frame (35) are respectively fixedly connected to the outer surfaces of the second connecting shafts at both ends.

6. A reservoir gate for a submersible hydroelectric power station according to claim 1, characterized in that: The transmission chain (22) moves inside the transmission cavity (14).

7. A reservoir gate for a submersible hydroelectric power station according to claim 1, characterized in that: Both sides of the first gate body (31) and the second gate body (33) are slidably connected to the inner wall of the unfolding groove (12).

8. A reservoir gate for a submersible hydroelectric power station according to claim 1, characterized in that: One side of the rear baffle (34) is attached to the bottom of the first gate body (31).

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