A water conservancy hub structure

Abstract

This utility model relates to the field of water conservancy engineering technology, specifically to a water conservancy hub structure, including an upstream reservoir and a downstream river channel. The upstream reservoir and the downstream river channel are connected by an intermediate channel, which includes a first tributary channel and a second tributary channel. The upstream of the first tributary channel and the upstream of the second tributary channel are connected to form a diversion point. The downstream of the first tributary channel flows into the downstream river channel. A ship lift is located at the confluence between the first tributary channel and the downstream river channel. A water-retaining overflow dam is located downstream of the second tributary channel. This utility model designs the intermediate channel as two tributary channels to divert water flow, with the upstream of the two tributary channels connected to form a diversion point. Water can flow into the two tributary channels separately. When passing through the diversion point, the flow velocity and impact force are reduced by the second tributary channel and the water-retaining overflow dam, greatly reducing the impact of the water flow on the ship lift and ensuring the normal operation of the ship lift and the normal navigation of the waterway.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering technology, and in particular to a water conservancy hub structure. Background Technology

[0002] In existing water conservancy facilities, to enable navigation between upstream reservoirs and downstream waterways, locks are typically constructed between the two locations, allowing vessels to travel between them. However, when there is a significant head difference between the upstream reservoir and the downstream waterway, a single lock system is insufficient to meet the navigation needs, specifically in the following ways:

[0003] 1. Positioning difficulties: When the water flow is too fast or there is turbulence, it is difficult for ships to accurately enter or exit the ship lift's carrying compartment, which may lead to collisions with the compartment or the track, increasing the difficulty for ships to enter or exit the ship lift.

[0004] 2. Decreased stability: The swaying of the water inside and outside the ship lift can cause friction between the ship and the hull of the ship lift, or even capsize the ship. In addition, the mechanical system will be subjected to additional dynamic loads during the lifting process, and the vibration will accelerate the fatigue wear of key components of the mechanical system, reducing the service life of the equipment.

[0005] To address the aforementioned technical issues, it is urgent to improve and resolve water conservancy projects that involve a significant head difference between the upstream reservoir and the downstream river channel and that employ ship lift equipment. Utility Model Content

[0006] The purpose of this invention is to overcome the technical problem that existing technologies, when using ship lifts for navigation between upstream reservoirs and downstream river channels with large head differences, cannot avoid the problem of excessive water flow fluctuations in the channel affecting the normal operation of the ship lifts, and to provide a hydraulic hub structure.

[0007] This utility model provides a water conservancy hub structure, including an upstream reservoir and a downstream river channel. The upstream reservoir and the downstream river channel are connected by an intermediate waterway, which includes a first tributary waterway and a second tributary waterway. The upstream of the first tributary waterway and the upstream of the second tributary waterway are connected to form a diversion point. The downstream of the first tributary waterway flows into the downstream river channel. A ship lift is set at the confluence between the first tributary waterway and the downstream river channel. A water-retaining overflow dam is set at the downstream of the second tributary waterway.

[0008] Due to the high head difference in the geographical environment, a ship lift is necessary for navigation in the waterway between the upstream reservoir and the downstream river. However, the high head difference also causes significant water flow fluctuations in the waterway's head regulation, which adversely affects the normal operation of the ship lift. To solve this technical problem, this invention designs the intermediate waterway as two tributary waterways to divert the flow. The ship lift is located at the confluence of one tributary waterway and the downstream river, while a water-retaining overflow dam is set downstream of the other tributary waterway. The upstream of the two tributary waterways are connected to form a diversion point. When the reservoir... After the water flows into the middle channel, it can be divided at the diversion point. Part of the water flows into the second tributary channel, where the overflow dam distributes the impact force of the water flow, reducing fluctuations and making it more stable. The other part of the water flows into the first tributary channel. When it flows through the diversion point, it is also affected by the water flow in the second tributary channel and the overflow dam, which reduces the flow velocity and impact force. This makes the water flow that finally reaches the ship lift more stable, avoiding large fluctuations and greatly reducing the impact of the water flow on the ship lift, ensuring the normal operation of the ship lift and the normal navigation of the channel.

[0009] Preferably, the intermediate channel further includes a main channel, the upstream of which is connected to the upstream reservoir, and the downstream of which is connected to the first tributary channel and the second tributary channel through the diversion outlet.

[0010] For the area between the diversion point and the upstream reservoir, the main channel can connect to two tributary channels. Water from the upstream reservoir can first flow through the main channel, then through the diversion point, and finally into the two tributary channels. The length of the main channel depends on the location of the diversion point. The selection of parameters such as the length and width of the main channel and tributary channels needs to be comprehensively assessed based on actual geographical conditions such as the drop in elevation. If the main channel is too long, it means that the diversion point is located too downstream, and the tributary channels are too short. The flow velocity and impact force of the water in the main channel may be too great, requiring the shorter tributary channels to be used. Distributing the impact force in the channel may reduce the effectiveness of reducing water flow fluctuations. If the main channel is too short, it means the diversion point is located too upstream, while the tributary channel is too long. Although the water flow can be reduced in terms of fluctuations and velocity at the upstream diversion point, the tributary channel will also have a large drop, causing the water flow velocity to increase again by the time it reaches the ship lift. In other words, the water flow at the ship lift will still have large fluctuations and affect the ship lift. Therefore, it is necessary to design the parameters of the main channel and tributary channel reasonably and determine the appropriate diversion point location to achieve the best effect in reducing water flow fluctuations.

[0011] Preferably, the direction of the main channel is consistent with the direction of the second tributary channel, and the first tributary channel is perpendicular to the main channel.

[0012] The direction of the main channel can be consistent with that of the second tributary channel, meaning the main channel and the second tributary channel can be connected end to end to form a straight channel. Alternatively, the main channel and the second tributary channel can be said to form a 180-degree angle. The first tributary channel is perpendicular to the main channel, or the first tributary channel is perpendicular to the second tributary channel. In this way, the main channel, the first tributary channel, and the second tributary channel can form a "T"-shaped structure. Under this structural feature, designing a specific angle between the main channel, the first tributary channel, and the second tributary channel can maximize the diversion and distribution of water flow impact at the branch point, making the water flow entering the first tributary channel as stable as possible and avoiding adverse effects on the ship lift.

[0013] Preferably, a water-saving lock is provided at the connection between the upstream of the main channel and the upstream reservoir.

[0014] There is still a certain head difference between the main channel and the upstream reservoir. If the head difference is not large, a water-saving lock can be used to enable navigation between the upstream reservoir and the main channel. Alternatively, the operation mode of the water-saving lock can be selected according to the head regulation needs of the upstream reservoir, and the upstream reservoir can be used to determine whether to release water downstream and the extent of the release.

[0015] Preferably, the ship lift is also located at the connection point between the main channel and the upstream reservoir.

[0016] Ship lifts can also be used instead of water-saving locks between the main channel and the upstream reservoir. Since the water in the upstream reservoir is generally stable and does not fluctuate much, it has little impact on the ship lift. Therefore, even if the head difference between the main channel and the upstream reservoir is not too large, a smaller ship lift can be used to achieve navigation. In other words, ship lifts can be used in the upstream and downstream sections to achieve a "dual ship lift" navigation mode.

[0017] Preferably, the main channel is equipped with several berths.

[0018] When the main channel is wide and not navigable, the water flow in the main channel tends to be stable, and ships can be moored using berthing piers. Berthing piers can also be set up at the shore position of the main channel, allowing ships to moor on the shore without affecting navigation in the middle of the main channel.

[0019] Preferably, an auxiliary lock is provided at the confluence between the first tributary channel and the downstream river channel, and the auxiliary lock is located downstream of the ship lift.

[0020] The auxiliary lock can help regulate the water head between the downstream confluence of the ship lift and the downstream river channel, thus avoiding the impact of the downstream river level on the downstream position of the ship lift during high or low tide.

[0021] Preferably, the second tributary waterway upstream of the overflow dam is connected to a first spillway, which can divert water from the second tributary waterway.

[0022] Preferably, the first tributary channel upstream of the ship lift is connected to a second drainage channel, the downstream of the second drainage channel is connected to the downstream river channel, and the second drainage channel can divert water from the first tributary channel.

[0023] Water discharge channels can be set up on the sides of the first and second tributary channels to limit the water head of the tributary channels. If the water head of the tributary channel exceeds the maximum allowable value, the excess water can be discharged through the water discharge channels to avoid the water level in the tributary channel exceeding the maximum water head and causing adverse effects on navigation and facilities such as locks and ship lifts.

[0024] Preferably, the intermediate waterway is constructed using natural valley terrain.

[0025] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0026] This utility model provides a hydraulic hub structure. By designing the intermediate channel as two branch channels, the ship lift is positioned at the confluence of one branch channel and the downstream river channel. A spillway dam is installed downstream of the other branch channel. The upstream of the two branch channels are connected to form a diversion point. When water from the reservoir flows into the intermediate channel, it is diverted at the diversion point. Part of the water flows into the second branch channel, where the spillway dam distributes the impact force, reducing fluctuations and stabilizing the flow. The other part flows into the first branch channel, where, as it passes the diversion point, the flow velocity and impact force are also reduced due to the influence of the second branch channel and the spillway dam. This ensures a stable flow reaching the ship lift, preventing large fluctuations and significantly minimizing the impact of the water flow on the ship lift, thus guaranteeing its normal operation and the smooth navigation of the channel. Attached Figure Description

[0027] Figure 1 This is a plan view of the water conservancy hub structure of this utility model.

[0028] Marked in the image:

[0029] 1. Upstream reservoir; 2. Downstream river channel; 3. Intermediate channel; 31. First tributary channel; 32. Second tributary channel; 33. Main channel; 331. Mooring pier; 34. Diversion outlet; 35. Confluence outlet; 36. First spillway; 37. Second spillway; 4. Ship lift; 5. Overflow dam; 6. Water-saving lock; 7. Auxiliary lock. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0031] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0032] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0033] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0034] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0035] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0036] Example

[0037] This embodiment provides a hydraulic hub structure.

[0038] Figure 1 This is a plan view of the water conservancy hub structure of this utility model.

[0039] like Figure 1 As shown, the water conservancy hub structure described in this embodiment may include an upstream reservoir 1 and a downstream river channel 2. The upstream reservoir 1 and the downstream river channel 2 are connected by an intermediate waterway 3. The intermediate waterway 3 includes a first tributary waterway 31 and a second tributary waterway 32. The upstream of the first tributary waterway 31 and the upstream of the second tributary waterway are connected to form a diversion outlet 34. The downstream of the first tributary waterway 31 flows into the downstream river channel 2. A ship lift 4 is set at the confluence 35 between the first tributary waterway 31 and the downstream river channel 2. A water-retaining overflow dam 5 is set at the downstream of the second tributary waterway 32.

[0040] Due to the high head difference in the geographical environment, a ship lift 4 is necessary for navigation in the navigable channel between the upstream reservoir 1 and the downstream river channel 2. However, the high head difference also causes significant water flow fluctuations in the channel's head regulation, which adversely affects the normal operation of the ship lift 4. To solve this technical problem, this invention designs the intermediate channel 3 as two tributary channels to divert water flow. The ship lift 4 is located at the confluence 35 between one tributary channel and the downstream river channel 2, while a water-blocking overflow dam 5 is installed downstream of the other tributary channel. The upstream of the two tributary channels are connected to form a diversion point 34. When the water level in the reservoir... After the water flows into the middle channel 3, it can be diverted at the diversion point 34. Part of the water flows into the second tributary channel 32, where the overflow dam 5 distributes the impact force of the water flow, reducing fluctuations and making it more stable. The other part of the water flows into the first tributary channel 31. When it flows through the diversion point 34, it is also affected by the water flow in the second tributary channel 32 and the overflow dam 5, which reduces the flow velocity and impact force, making the water flow that finally reaches the ship lift 4 more stable, avoiding large fluctuations, and greatly reducing the impact of the water flow on the ship lift 4, ensuring the normal operation of the ship lift 4 and the normal navigation of the channel.

[0041] In this embodiment, the intermediate channel 3 also includes the main channel 33, the upstream of which is connected to the upstream reservoir 1, and the downstream of which is connected to the first tributary channel 31 and the second tributary channel 32 through the diversion outlet 34.

[0042] The area between the diversion point 34 and the upstream reservoir 1 can be connected to two tributary channels via the main channel 33. Water from the upstream reservoir 1 can first flow through the main channel 33, then through the diversion point 34, and finally into the two tributary channels. The length of the main channel 33 depends on the location of the diversion point 34. The selection of parameters such as the length and width of the main channel 33 and the tributary channels needs to be comprehensively assessed based on actual geographical conditions such as the drop in elevation. If the main channel 33 is too long, it means that the diversion point 34 is located too downstream, and the tributary channels are too short. The flow velocity and impact force of the water in the main channel 33 may be too great, relying on the shorter and longer channels. Distributing the impact force through tributary channels may reduce the effectiveness of reducing water flow fluctuations. If the main channel 33 is too short, it means that the diversion point 34 is located too upstream, while the tributary channel is too long. Although the water flow can reduce fluctuations and velocity at the diversion point 34 upstream, the tributary channel will also have a large drop, causing the water flow velocity to increase again at the ship lift 4. In other words, the water flow at the ship lift 4 will still have large fluctuations and affect the ship lift 4. Therefore, it is necessary to reasonably design the parameters of the main channel 33 and the tributary channel and determine a suitable position for the diversion point 34 to achieve the best effect in reducing water flow fluctuations.

[0043] Alternatively, the direction of the main channel 33 is consistent with the direction of the second tributary channel 32, and the direction of the first tributary channel 31 is perpendicular to the main channel 33.

[0044] The direction of the main channel 33 can be consistent with the direction of the second tributary channel 32, that is, the main channel 33 can be connected end to end with the second tributary channel 32 to form a straight channel. It can also be said that the main channel 33 and the second tributary channel 32 form a 180-degree angle. The first tributary channel 31 is perpendicular to the main channel 33, or the first tributary channel 31 is perpendicular to the second tributary channel 32. In this way, the main channel 33, the first tributary channel 31 and the second tributary channel 32 can form a "T"-shaped structure. Under this structural feature, designing the main channel 33, the first tributary channel 31 and the second tributary channel 32 with a specific angle can maximize the diversion and distribution of water flow impact at the diversion port 34, so that the water flow entering the first tributary channel 31 tends to be as stable as possible, avoiding adverse effects on the ship lift 4.

[0045] In this embodiment, a water-saving lock 6 is provided at the connection between the upstream of the main channel 33 and the upstream reservoir 1.

[0046] There is still a certain head difference between the main channel 33 and the upstream reservoir 1. If the head difference is not large, the water-saving lock 6 can be used to realize navigation between the upstream reservoir 1 and the main channel 33. Alternatively, the operation mode of the water-saving lock 6 can be selected according to the head regulation needs of the upstream reservoir 1, and the upstream reservoir 1 can be used to determine whether to release water downstream and the extent of the release.

[0047] In this embodiment, the ship lift 4 is also located at the connection point between the upstream of the main channel 33 and the upstream reservoir 1.

[0048] A ship lift 4 can be used instead of a water-saving lock 6 between the main channel 33 and the upstream reservoir 1. This is because the water in the upstream reservoir 1 is generally stable and does not fluctuate much, so it has little impact on the ship lift 4. Therefore, even if the head difference between the main channel 33 and the upstream reservoir 1 is not too large, a smaller ship lift 4 can be used to achieve navigation. In other words, ship lifts 4 can be used in the upstream and downstream sections respectively to achieve a "dual ship lift 4" navigation mode.

[0049] Optionally, the main channel 33 may be equipped with several berthing piers 331.

[0050] When the main channel 33 is wide and in a non-navigable condition, the water flow in the main channel 33 tends to be stable, and ships can be moored using the berthing pier 331; the berthing pier 331 can also be set at the shore position of the main channel 33, so that ships can moor at the shore without affecting the navigation in the middle of the main channel 33.

[0051] In this embodiment, the confluence 35 between the first tributary channel 31 and the downstream river channel 2 is also provided with an auxiliary lock 7, which is located downstream of the ship lift 4.

[0052] The auxiliary lock 7 can help regulate the water head between the downstream inlet 35 of the ship lift 4 and the downstream river channel 2, which can prevent the water level of the downstream river channel 2 from affecting the downstream position of the ship lift 4 during high tide or low tide.

[0053] In this embodiment, the second tributary channel 32 upstream of the overflow dam 5 is connected to a first spillway channel 36, which can divert water from the second tributary channel 32.

[0054] In this embodiment, the first tributary channel 31 upstream of the ship lift 4 is connected to the second drainage channel 37, and the downstream of the second drainage channel 37 is connected to the downstream river channel 2. The second drainage channel 37 can divert the first tributary channel 31.

[0055] Water discharge channels can be set up on the sides of the first tributary channel 31 and the second tributary channel 32 to limit the water head of the tributary channels. If the water head of the tributary channel exceeds the maximum allowable value, the excess water can be discharged through the water discharge channels to avoid the water level in the tributary channel exceeding the maximum water head and causing adverse effects on navigation and facilities such as locks and ship lifts.

[0056] In this embodiment, the intermediate channel 3 is constructed using natural valley terrain. For example, the construction of the intermediate channel 3 between Baise Reservoir and the downstream Youjiang River can take full advantage of the natural valley terrain. The natural valley can provide a natural course for the intermediate channel 3. The valley terrain slopes from high to low from Baise Reservoir to Youjiang River, and the intermediate channel 3 can naturally form in the valley. The first tributary channel 31, the second tributary channel 32, and the main channel 33 can all be constructed using the valley terrain to the greatest extent possible, thereby reducing the amount of excavation and construction work required for the channel. Of course, other water conservancy projects with similar terrain features, besides the Baise Reservoir project, can also be constructed and excavated in a similar manner. This utility model does not make any specific limitations on this.

[0057] In summary, this utility model provides a hydraulic hub structure. By designing the intermediate channel as two tributary channels, the ship lift is positioned at the confluence of one tributary channel and the downstream river channel. A spillway dam is installed downstream of the other tributary channel. The upstream of the two tributaries are connected to form a diversion point. When water from the reservoir flows into the intermediate channel, it is diverted at the diversion point. Part of the water flows into the second tributary channel, where the spillway dam distributes the impact force, reducing fluctuations and stabilizing the flow. The other part flows into the first tributary channel, where, as it passes the diversion point, the flow velocity and impact force are also reduced due to the influence of the second tributary channel and the spillway dam. This results in a stable flow reaching the ship lift, preventing large fluctuations and significantly reducing the impact of the water flow on the ship lift, ensuring its normal operation and the smooth navigation of the channel.

[0058] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hydraulic hub structure, characterized in that, It includes an upstream reservoir (1) and a downstream river channel (2), which are connected by an intermediate channel (3). The intermediate channel (3) includes a first tributary channel (31) and a second tributary channel (32). The upstream of the first tributary channel (31) and the upstream of the second tributary channel (32) are connected to form a diversion point (34). The downstream of the first tributary channel (31) flows into the downstream river channel (2). A ship lift (4) is set at the confluence point (35) between the first tributary channel (31) and the downstream river channel (2). A water-blocking overflow dam (5) is set downstream of the second tributary channel (32).

2. The water conservancy hub structure according to claim 1, characterized in that, The intermediate channel (3) also includes the main channel (33), the upstream of which is connected to the upstream reservoir (1), and the downstream of which is connected to the first tributary channel (31) and the second tributary channel (32) through the diversion port (34).

3. The water conservancy hub structure according to claim 2, characterized in that, The direction of the main channel (33) is consistent with the direction of the second tributary channel (32), and the first tributary channel (31) is perpendicular to the main channel (33).

4. The water conservancy hub structure according to claim 2, characterized in that, A water-saving lock (6) is provided at the connection between the upstream of the main channel (33) and the upstream reservoir (1).

5. The water conservancy hub structure according to claim 2, characterized in that, The ship lift (4) is also located at the connection point between the upstream of the main channel (33) and the upstream reservoir (1).

6. The water conservancy hub structure according to claim 2, characterized in that, The main channel (33) is equipped with several berthing piers (331).

7. The water conservancy hub structure according to any one of claims 1 to 6, characterized in that, The confluence (35) between the first tributary channel (31) and the downstream river channel (2) is also provided with an auxiliary lock (7), which is located downstream of the ship lift (4).

8. The water conservancy hub structure according to any one of claims 1 to 6, characterized in that, The second tributary channel (32) upstream of the water-retaining overflow dam (5) is connected to a first discharge channel (36), which can divert water from the second tributary channel (32).

9. The water conservancy hub structure according to any one of claims 1 to 6, characterized in that, The first tributary channel (31) upstream of the ship lift (4) is connected to a second drainage channel (37), the downstream of the second drainage channel (37) is connected to the downstream river channel (2), and the second drainage channel (37) can divert the first tributary channel (31).

10. The water conservancy hub structure according to any one of claims 1 to 6, characterized in that, The intermediate waterway (3) was constructed using the natural valley terrain.

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