Overflow type riverbed workshop structure on workshop roof

Abstract

The utility model relates to the technical field of hydroelectric plants, and provides a plant roof overflow type riverbed plant structure which comprises a plant body, the two sides of the plant body are communicated with a water inlet channel and a tail water channel respectively, and a generator and a water turbine are arranged in the plant body. The water inlet channel, the plant body and the tail water channel are sequentially arranged from one side to the other side in the water flow direction of one side, the water inlet channel, the plant body and the tail water channel are sequentially communicated, and a first service gate is located at the top of the plant body to achieve the partial flood discharge function. Compared with a traditional side-by-side combined construction mode, the flood discharge scale of the second service gate is reduced, the gate section width of pure drainage and the overall water retaining length of the hub are shortened, the defect that a large-flow plain hydropower hub flood discharge building occupies too much river channel width is overcome, and the situation that when a hydropower hub is built on a river channel with a narrow dam site, the flood discharge scale is large is avoided. And hub buildings are difficult to arrange.

Description

Technical Field

[0001] This utility model relates to the field of hydropower plant technology, specifically to a roof overflow type riverbed plant structure. Background Technology

[0002] A hydroelectric powerhouse is a building in a hydroelectric power station that houses turbines, generators, and various auxiliary equipment. It typically consists of a main powerhouse and an auxiliary powerhouse, and is a complex of hydraulic structures, mechanical and electrical equipment, as well as the workplace for operating personnel.

[0003] A search revealed an existing patent (CN212103959U) disclosing a riverbed-type powerhouse for water conservancy and hydropower projects. This powerhouse includes a main body and a weighting system. The external counterweight introduced by this system increases the load on the riverbed foundation beneath the powerhouse. Furthermore, the powerhouse also includes an upstream riverbed apron. The main body also includes a base plate, which is pressed against the riverbed foundation. The upstream side of the base plate is connected to the upstream riverbed apron via the weighting system. The external counterweight introduced by the weighting system is water from the upstream reservoir area pressed against the system. This invention adds a weighting system to the existing riverbed-type powerhouse body, thereby increasing the load on the riverbed foundation beneath the powerhouse through the external counterweight introduced by the weighting system. In this way, by simply adding a weighting system to the existing riverbed powerhouse, the load on the riverbed foundation below is increased by introducing counterweights through the weighting system, thereby improving the anti-slip force of the riverbed powerhouse. This not only makes the structure simple and the construction operation convenient, but also significantly improves the anti-slip technical and economic effects compared to riverbed powerhouses improved by other methods.

[0004] However, in the above scheme, the riverbed powerhouse only serves as a water barrier and does not have a flood discharge function. The traditional riverbed powerhouse and sluice gate are built side by side. In the side-by-side river dam, since the powerhouse and sluice gate each occupy part of the river channel, and flood discharge is required during the flood season, only the sluice gate can discharge the flood. In high-flow, low-head hydropower projects in plain areas, if the river channel at the dam site is narrow and the project has other projects such as locks and fishways that require occupying the limited river channel width, adopting the traditional project layout will greatly increase the amount of excavation and land acquisition, increase the project cost, and the water flow conditions of the buildings located on both banks are poor.

[0005] In view of this, this utility model proposes a factory building structure with an overflow-type riverbed on the roof. Summary of the Invention

[0006] This utility model proposes a roof-overflow type riverbed powerhouse structure, which solves the problem of difficult layout of hydropower hub structures in plains where the dam site is narrow.

[0007] The technical solution of this utility model is as follows: A powerhouse structure with an overflow-type riverbed includes a powerhouse body. The two sides of the powerhouse body are respectively connected to an inlet channel and a tailrace channel. A generator and a turbine are installed inside the powerhouse body. The inlet channel, powerhouse body, and tailrace channel are arranged sequentially from one side of the water flow direction to the other side, and are sequentially connected. The powerhouse body includes a roof. Flood discharge channels and power generation channels are respectively provided on the upper and lower sides of the roof inside the powerhouse body. The generator and turbine are both located inside the powerhouse body. A working gate is provided at the top of the roof, and the bottom of the working gate... The structure is designed to be enclosed at the top of the plant. The working gate 1 connects the intake channel and the tailrace channel. The plant body has two lifting holes, one for lifting objects and one for lifting objects. The tops of the lifting holes 1 and 2 are respectively covered with cover plates 1 and 2. The working gate 1, located at the top of the plant body, undertakes part of the flood discharge function, thereby reducing the flood discharge scale of the working gate 2, shortening the width of the gate section for pure water discharge, and reducing the overall water-retaining length of the hub. Compared with the traditional parallel combined construction type, this avoids the disadvantages of large-flow plain hydropower hub flood discharge structures occupying too much river width, and avoids the problem of difficult layout of hub structures when constructing hydropower hubs on narrow river channels.

[0008] Preferably, the working gate is connected to the inlet channel and the tailrace channel by a flood discharge channel.

[0009] Preferably, the inlet channel and tailwater channel connected by the two working gates are configured as a current generation channel.

[0010] Preferably, the second working gate is located at the bottom of the plant top near the tailrace channel. The second working gate closes the side of the power generation channel near the tailrace channel. The second working gate is used to block the river and water, so that the reservoir water level reaches the normal storage level for the unit to generate electricity.

[0011] Preferably, the first cover plate and the second cover plate enclose the top of the factory roof, both of which are sealed and waterproof structures, and both of which are vertically oriented.

[0012] Preferably, a hoisting tower is provided on the top of the plant body, which is adapted to hoist a generator and a water turbine. The generator is located at the bottom of hoisting hole one, and the water turbine is located at the bottom of hoisting hole two. An operating room is provided on both sides of the plant body.

[0013] Preferably, the current generation channel and the flood discharge channel are arranged vertically in parallel.

[0014] Preferably, the width of a single hole of the working gate is greater than or equal to the maximum width of the current-generating channel.

[0015] Preferably, there are multiple working gates, and a partition dam is provided between each of the multiple working gates, and a flood discharge channel is provided between each partition dam.

[0016] Preferably, the plant roof is equipped with two lifting holes, one and two, located between the two dividing dam bodies. The multiple flood discharge channels and the two lifting holes can divert the water flow, thereby controlling the overflow flow.

[0017] The beneficial effects of this utility model are as follows:

[0018] 1. In this utility model, the working gate one is located on the top of the powerhouse body to undertake part of the flood discharge function, thereby reducing the flood discharge scale of the working gate two, shortening the width of the gate section for pure water discharge and the overall water-blocking length of the hub. Compared with the traditional parallel and combined construction type, it avoids the disadvantages of large-flow plain hydropower hub flood discharge structures occupying too much river width, and avoids the problem of difficult layout of hub structures when constructing hydropower hubs on narrow river channels at dam sites.

[0019] 2. In this utility model, the multiple flood discharge channels and the lifting holes 1 and 2 can divert the water flow, thereby controlling the overflow flow. The working gate 1 closes the side of the flood discharge channel near the intake channel, and the working gate 2 is used to block the river and prevent water from flowing, so that the reservoir water level reaches the normal storage level for power generation. Attached Figure Description

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0021] Figure 1 This is a three-dimensional structural diagram of the water intake channel on one side of the riverbed plant of this utility model;

[0022] Figure 2 This is a three-dimensional structural diagram of the tailrace channel on the other side of the riverbed powerhouse of this utility model;

[0023] Figure 3 This is a three-dimensional structural diagram of the riverbed powerhouse of this utility model, viewed from below.

[0024] Figure 4 This is a schematic diagram of the internal structure of the factory building under the top barrier function of this utility model;

[0025] Figure 5 This is a schematic diagram of the internal structure of the factory building under the top overflow effect of this utility model;

[0026] Figure 6 This is a top view of the structure of this utility model.

[0027] In the diagram: 1. Intake canal; 2. Powerhouse body; 3. Tailrace canal; 4. Turbine; 5. Working gate one; 6. Working gate two; 7. Cover plate one; 8. Cover plate two; 9. Lifting hole one; 10. Lifting hole two; 11. Generator; 12. Plant roof; 13. Lifting tower; 14. Generator channel; 15. Flood discharge channel; 16. Control room; 17. Dividing dam. Detailed Implementation

[0028] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model. Example 1

[0029] A preferred embodiment of the overflow-type riverbed factory building structure provided by this utility model is, for example... Figures 1 to 6 As shown: A powerhouse structure with overflow roof and riverbed includes a powerhouse body 2. The two sides of the powerhouse body 2 are connected to an inlet channel 1 and a tailrace channel 3, respectively. A generator 11 and a turbine 4 are installed inside the powerhouse body 2. The inlet channel 1, the powerhouse body 2, and the tailrace channel 3 are arranged sequentially from one side to the other along the water flow direction. The inlet channel 1, the powerhouse body 2, and the tailrace channel 3 are connected sequentially. The powerhouse body 2 includes a roof 12. The upper and lower sides of the roof 12 inside the powerhouse body 2 are respectively provided with a flood discharge channel 15 and a power generation channel 14. The generator 11 and the turbine 4 are both located inside the powerhouse body 2. A working gate 5 is provided at the top of the roof 12. The bottom of the working gate 5 is adapted to be closed with the top of the roof 12. The working gate 5 is connected to the inlet channel 1 and the tailrace channel 3. A lifting hole 9 and a lifting hole 10 are provided inside the powerhouse body 2. A cover plate 7 and a cover plate 8 are respectively provided at the top of the lifting hole 9 and the lifting hole 10.

[0030] It should be noted that existing hydropower plants still have certain shortcomings. Their riverbed-type plants only serve to impound water and do not have flood discharge functions. The traditional riverbed-type plant and sluice gate are built side by side. In the side-by-side river-blocking project, since the plant and sluice gate each occupy part of the river channel, and flood discharge is required during the flood season, only the sluice gate can discharge the flood. In high-flow, low-head hydropower projects in plain areas, if the river channel at the dam site is narrow and the project has other key structures such as locks and fishways that require occupying the limited river channel width, adopting the traditional project layout will greatly increase the amount of excavation and land acquisition, increase the project cost, and the water flow conditions of the structures located on both banks are relatively poor.

[0031] In this embodiment, the working gate 5 is located on top of the powerhouse 2 and undertakes part of the flood discharge function, thereby reducing the flood discharge scale of the working gate 6, shortening the width of the gate section for pure water discharge and the overall water-retaining length of the hub. Compared with the traditional parallel construction type, it avoids the disadvantages of large-flow plain hydropower hub flood discharge structures occupying too much river width, and avoids the problem of difficult layout of hub structures when constructing hydropower hubs on narrow river channels.

[0032] In a further preferred embodiment of this utility model, a flood discharge channel 15 is set between the inlet channel 1 and the tailrace channel 3 connected by the working gate 5.

[0033] In a further preferred embodiment of this utility model, a current generation channel 14 is set between the inlet channel 1 and the tailwater channel 3 connected by the working gate 2 6.

[0034] In a further preferred embodiment of this utility model, the second working gate 6 is located at the bottom of the plant top 12 near the tailrace channel 3, and the second working gate 6 closes the side of the power generation channel 14 near the tailrace channel 3.

[0035] In this embodiment, the working gate 6 is used to block the river and prevent water from flowing, so that the reservoir water level reaches the normal storage level for the generating unit to generate electricity. Example 2

[0036] Based on Embodiment 1, a preferred embodiment of the overflow-type riverbed factory building structure with a factory roof provided by this utility model is as follows: Figures 1 to 6 As shown: Cover plate 1 7 and cover plate 2 8 enclose the top of the factory roof 12. Both cover plate 1 7 and cover plate 2 8 are sealed and waterproof structures. Lifting hole 1 9 and lifting hole 2 10 are both set vertically.

[0037] In a further preferred embodiment of this utility model, a hoisting tower 13 is provided on the top of the plant body 2. The hoisting tower 13 is adapted to hoist a generator 11 and a water turbine 4. The generator 11 is located at the bottom of the hoisting hole 19, and the water turbine 4 is located at the bottom of the hoisting hole 20. An operating room 16 is provided on both sides of the plant body 2.

[0038] In a further preferred embodiment of this utility model, the current generation channel 14 and the flood discharge channel 15 are arranged vertically in parallel.

[0039] In a further preferred embodiment of this utility model, the width of a single hole of the working gate 5 is greater than or equal to the maximum width of the current-generating channel 14.

[0040] In a further preferred embodiment of this utility model, there are multiple working gates 5, and a partition dam 17 is provided between each of the multiple working gates 5, and a flood discharge channel 15 is provided between each partition dam 17.

[0041] In a further preferred embodiment of this utility model, a hoisting hole 9 and a hoisting hole 10 are provided inside the top of the plant 12 at the position between the two side partition dam bodies 17.

[0042] In this embodiment, the multiple flood discharge channels 15 and the first and second lifting holes 9 and 10 can be used to divert the water flow, thereby controlling the overflow flow rate.

[0043] The working principle of this practical system is as follows: The power generation channel 14 and the flood discharge channel 15 are arranged in parallel vertically. When generating electricity, the working gate 5 at the top of the plant roof 12 is lowered to block water, and the water flow drives the generator 11 and the turbine 4 to generate electricity through the power generation channel 14. When discharging floodwater, the generator 11 and the turbine 4 close their movable guide vanes to stop generating electricity, and the working gate 5 at the top of the plant roof 12 is opened to discharge floodwater. Compared with the traditional parallel and combined construction type, this system avoids the disadvantages of riverbed powerhouses that only block water and do not participate in flood discharge. It can shorten the length of the dam structure that blocks the river, reduce the excavation on both banks and the land occupied by the dam, and avoid the problem of difficult layout of hydropower dam structures in plains where the dam site is narrow.

[0044] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A factory building structure with an overflow roof and riverbed, characterized in that, The plant includes a main building (2), with an intake channel (1) and a tailrace channel (3) connected to both sides of the main building (2). A generator (11) and a turbine (4) are installed inside the main building (2). The intake channel (1), the main building (2), and the tailrace channel (3) are arranged sequentially from one side to the other along the water flow direction. The intake channel (1), the main building (2), and the tailrace channel (3) are connected sequentially. The main building (2) includes a roof (12). Flood discharge channels (1) are installed on the upper and lower sides of the roof (12) inside the main building (2). 5) and the power generation channel (14), the generator (11) and the water turbine (4) are both located inside the main body of the plant (2), the top of the plant roof (12) is provided with a working gate (5), the bottom of the working gate (5) is adapted to be closed with the top of the plant roof (12), the working gate (5) connects the inlet channel (1) and the tailrace channel (3), the main body of the plant (2) is provided with a hoisting hole (9) and a hoisting hole (10), the top of the hoisting hole (9) and the hoisting hole (10) are respectively provided with a cover plate (7) and a cover plate (8).

2. The overflow-type riverbed factory building structure according to claim 1, characterized in that, The working gate (5) connects the inlet channel (1) and the tailrace channel (3) to form a flood discharge channel (15).

3. The overflow-type riverbed factory building structure according to claim 1, characterized in that, It also includes a second working gate (6), which connects the inlet channel (1) and the tailrace channel (3) to form a current-generating channel (14).

4. The overflow-type riverbed factory building structure according to claim 3, characterized in that, The second working gate (6) is located at the bottom of the plant top (12) near the tailrace channel (3). The second working gate (6) closes the side of the power generation channel (14) near the tailrace channel (3).

5. The overflow-type riverbed factory building structure according to claim 1, characterized in that, The cover plate one (7) and cover plate two (8) enclose the top of the factory roof (12). The cover plate one (7) and cover plate two (8) are both sealed and waterproof structures. The lifting hole one (9) and lifting hole two (10) are both vertically arranged.

6. The overflow-type riverbed factory building structure according to claim 1, characterized in that, The top of the plant body (2) is equipped with a hoisting tower (13), which is adapted to hoist a generator (11) and a water turbine (4). The generator (11) is located at the bottom of hoisting hole one (9), and the water turbine (4) is located at the bottom of hoisting hole two (10). Both sides of the plant body (2) are equipped with operating rooms (16).

7. The overflow-type riverbed factory building structure according to claim 1, characterized in that, The current generation channel (14) and the flood discharge channel (15) are arranged in parallel vertically.

8. The overflow-type riverbed factory building structure according to claim 1, characterized in that, The width of a single hole of the working gate (5) is greater than or equal to the maximum width of the current-generating channel (14).

9. The overflow-type riverbed factory building structure according to claim 1, characterized in that, The number of working gates (5) is set to be multiple, and a partition dam (17) is set between each of the multiple working gates (5), and a flood discharge channel (15) is set between each partition dam (17).

10. A factory roof overflow type riverbed factory building structure according to claim 9, characterized in that, The plant roof (12) is equipped with two lifting holes, namely, one (9) and two (10), located between the two sides of the dividing dam body (17).

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