Energy dissipation type abrupt slope water conveying tank

Abstract

The utility model relates to the technical field of water conservancy projects, and discloses an energy dissipation type abrupt slope water conveying tank which comprises a water tank body, and an abrupt slope section with a certain gradient is arranged at the bottom of the water tank body. The energy dissipation device is arranged at the outlet section of the water tank main body, the energy dissipation device comprises a multi-stage energy dissipation ridge and an energy dissipation pool, a plurality of energy dissipation blocks are arranged in the energy dissipation pool, and the energy dissipation blocks are of square structures and are made of reinforced concrete; the water flow control system comprises a flow control valve arranged at the inlet section of the water tank and an adjusting flashboard arranged at the outlet section of the water tank and is used for adjusting the water flow and the flow velocity in the water tank main body. According to the utility model, the multi-stage energy dissipation ridges and the energy dissipation pools are cooperated to dissipate energy, so that the water flow scouring force is obviously reduced, the system safety is improved, and the engineering life is prolonged; the device is simple in structure, convenient to maintain, suitable for various flow conditions, widely suitable for occasions such as flood drainage, hydroelectric and irrigation in mountainous areas and good in economic and social benefits.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering technology, and in particular to an energy-dissipating steep slope water conveyance channel. Background Technology

[0002] Currently, steep-slope water conveyance is a common form in mountainous water conservancy projects, farmland irrigation, and hydropower station water diversion systems. It is widely used due to its reliance on elevation differences for rapid water transport, and its advantages of low construction costs and high operating efficiency. Under the influence of gravity, water flows rapidly down channels with significant slopes, enabling quick long-distance water allocation. However, with increasing elevation differences and flow velocities, high-energy water flows can easily impact downstream structures, leading to safety hazards such as scouring, erosion, and even structural instability.

[0003] Regarding the aforementioned aspects, the basic structure of existing steep slope water conveyance channels is typically a concrete or steel structure with a certain angle of inclination. Water flows down the channel at an accelerated speed from a higher elevation. The channel outlet is equipped with a conventional outlet or a drop platform to guide the water flow into downstream channels or buffer zones. In some applications, the outlet is equipped with a simple energy dissipation structure, such as a protrusion or a stepped cross-section, to reduce some of the kinetic energy.

[0004] However, existing energy-dissipating steep-slope water conveyance systems still have many limitations in practical applications. Firstly, traditional energy dissipation structures are mostly of a single form, such as simply setting up a drop sill or a simple stilling basin, which cannot fully adapt to complex and variable high-velocity environments, resulting in insufficient energy dissipation efficiency and susceptibility to downstream scouring damage. Secondly, the internal structure of the stilling basin is often crudely laid out without targeted optimization, failing to effectively turbulent the flow and leading to localized energy concentration. Thirdly, the flow regulation system has a slow response, and the control methods are mostly mechanical and manual, unsuitable for applications with frequent flow fluctuations. Fourthly, there is a lack of effective operational data monitoring methods, making it impossible to achieve real-time monitoring and dynamic control of flow parameters, leaving the water conservancy system in a state of "blind operation" for extended periods. Fifthly, most systems lack sufficient consideration for maintenance, making sediment deposition and removal difficult and affecting long-term stable operation.

[0005] To address the above problems, an energy-dissipating steep slope water conveyance channel is proposed. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides an energy-dissipating steep slope water conveyance channel, which aims to solve the problems of low energy dissipation efficiency, weak water flow control capability, unmonitorable operation status, and inconvenient maintenance of existing energy-dissipating steep slope water conveyance channels.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: an energy-dissipating steep slope water conveyance channel, comprising:

[0008] The main body of the water tank has a steep slope section at the bottom.

[0009] An energy dissipation device is installed at the outlet section of the main body of the water tank. The energy dissipation device includes a multi-stage energy dissipation sill and an energy dissipation pool.

[0010] The water flow control system includes a flow control valve installed at the inlet section of the water tank and a regulating gate installed at the outlet section, which are used to regulate the water flow rate and velocity within the main body of the water tank.

[0011] As a further description of the above technical solution:

[0012] The energy dissipation pool is equipped with multiple energy dissipation blocks.

[0013] As a further description of the above technical solution:

[0014] Multiple energy dissipation blocks are arranged side by side at different heights. The energy dissipation blocks are square in structure and made of reinforced concrete.

[0015] As a further description of the above technical solution:

[0016] The multi-stage energy dissipation embankment includes three stepped energy dissipation embankments, each with a height of 20-40cm and a length of 50-100cm, and is distributed in a sawtooth pattern.

[0017] As a further description of the above technical solution:

[0018] It also includes a monitoring system, which includes a water level gauge, a flow meter, and a pressure sensor installed in the water tank for real-time monitoring of water flow parameters.

[0019] As a further description of the above technical solution:

[0020] It also includes an intelligent control unit, which is connected to the monitoring system and is used to collect monitoring data and automatically control the opening of the flow control valve and the regulating gate according to a preset algorithm.

[0021] As a further description of the above technical solution:

[0022] The bottom of the energy dissipation pool is equipped with a sand discharge hole for periodically removing sediment.

[0023] As a further description of the above technical solution:

[0024] A drive motor is installed on the top of the regulating gate.

[0025] This utility model has the following beneficial effects:

[0026] 1. In this utility model, the energy dissipation method combining multi-stage energy dissipation sills and energy dissipation pools is adopted, which greatly improves the energy dissipation efficiency and significantly reduces the scouring and destructive force of water flow on downstream structures. At the same time, the emergency overflow channel and anti-scouring protection measures improve the safety of the system, greatly reduce the risk of accidents in water conservancy projects, and extend the service life of the project.

[0027] 2. This utility model has a relatively simple structure, low maintenance cost, and strong adaptability. It can be applied to different flow conditions by adjusting parameters and can be widely used in various water conservancy projects such as flood discharge in mountainous areas, hydropower generation, and farmland irrigation, with significant economic and social benefits. Attached Figure Description

[0028] Figure 1 This is a three-dimensional schematic diagram of an energy-dissipating steep slope water conveyance channel proposed in this utility model;

[0029] Figure 2 This is a schematic diagram of the energy dissipation block of an energy dissipation steep slope water conveyance channel proposed in this utility model;

[0030] Figure 3 for Figure 1 A magnified view of A in the middle.

[0031] Legend:

[0032] 1. Water tank body; 2. Steep slope section; 3. Multi-stage energy dissipation sill; 4. Energy dissipation pool; 5. Energy dissipation block; 6. Flow control valve; 7. Regulating gate; 8. Sand discharge hole. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figure 1 - Figure 3This utility model provides an embodiment of an energy-dissipating steep-slope water conveyance channel, comprising a channel body 1, an energy dissipation device, a water flow control system, a monitoring system, and an intelligent control unit. The channel body 1 is a channel structure for conveying water flow, generally elongated, with a steep slope section 2 at its bottom, allowing the water flow to accelerate under gravity, suitable for terrain environments with significant elevation differences. The energy dissipation device is located at the outlet section of the channel body 1, its main function being to reduce the energy of high-velocity water flow and prevent damage to downstream river channels or other hydraulic structures. The energy dissipation device includes multi-stage energy dissipation sills 3 and energy dissipation pools 4. The multi-stage energy dissipation sills 3 are specifically a three-stage stepped structure, each sill being 20 to 40 cm high and 50 to 100 cm long, with a serrated distribution between each stage, forming a multi-stage cascading structure that effectively disrupts the continuity of water flow and promotes the formation of turbulent zones, enhancing the energy dissipation effect of the water flow. The energy dissipation pool 4 is located below the multi-stage energy dissipation sill 3. It contains multiple energy dissipation blocks 5 to further disrupt the water flow and enhance the energy dissipation effect. The energy dissipation blocks 5 are square structures arranged in a staggered pattern, made of reinforced concrete, possessing good erosion resistance and structural strength. To ensure the long-term operational efficiency of the energy dissipation pool 4, it is also equipped with sand discharge holes 8 at its bottom to periodically discharge deposited silt and prevent blockage that could affect hydraulic performance. The water flow control system mainly consists of a flow control valve 6 located at the inlet of the water tank and a regulating gate 7 at the outlet. The former controls the initial flow rate, while the latter adjusts the outlet velocity and pressure according to the water flow conditions. The regulating gate 7 is equipped with a drive motor at its top, enabling automated operation via external signals, improving the speed and accuracy of the regulation response. The monitoring system is used to monitor the water flow status in real time during the operation of the water conveyance tank. It includes a water level gauge, a flow velocity meter, and a pressure sensor, which monitor changes in water level, flow velocity, and pressure, respectively, providing detailed operational data. To achieve efficient automated management, the embodiment also includes an intelligent control unit connected to the monitoring system. This unit can comprehensively analyze multiple sets of collected water flow parameters and automatically control the opening of the flow control valve 6 and the regulating gate 7 using a preset algorithm, thereby achieving intelligent regulation and optimization of the water flow operation. Through the organic combination of the above structure and system, this utility model can not only significantly improve energy dissipation efficiency and significantly reduce the scouring force of water flow on downstream facilities, thus reducing the operational risks of water conservancy projects, but also has the advantages of simple structure, strong adaptability, high degree of automation, and low maintenance cost. It is particularly suitable for various engineering scenarios such as flood discharge in mountainous areas, tailwater treatment for hydropower generation, and farmland irrigation, and has broad application value and significant economic and social benefits.

[0035] Working principle: Water first enters the main body 1 of the water tank through the flow control valve 6 located at the inlet section, and accelerates along the steep slope section 2 with a certain gradient, generating high potential energy and high-speed kinetic energy during the flow. When the water enters the outlet section, it passes through three stepped energy dissipation sills in sequence. Because each energy dissipation sill is 20-40cm high and 50-100cm long, and arranged in a sawtooth pattern, the water falls and collides between the sills, generating turbulence and hydraulic jumps, and the kinetic energy begins to weaken. Subsequently, the water enters a series of sills arranged at different heights. The energy dissipation pool 4 of the square energy dissipation block 5 forms a large number of vortices during the contact and flow around the energy dissipation block 5, further weakening the water energy, and finally the sediment is discharged through the sand discharge hole 8 at the bottom of the pool. During this process, the water level gauge, flow rate gauge and pressure sensor installed inside the water tank continuously collect water flow status data and transmit it to the intelligent control unit connected to it for data processing. The unit adjusts the opening of the flow control valve 6 and the outlet section regulating gate 7 in real time according to the preset algorithm, thereby regulating the flow rate and speed of the incoming and outgoing water to form a stable closed-loop system.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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. An energy-dissipating steep slope water conveyance channel, characterized in that, include: The water tank body (1) has a steep slope section (2) with a certain slope at the bottom; An energy dissipation device is installed at the outlet section of the main body of the water tank (1). The energy dissipation device includes a multi-stage energy dissipation sill (3) and an energy dissipation pool (4). The water flow control system includes a flow control valve (6) installed at the inlet section of the water tank and a regulating gate (7) installed at the outlet section, which are used to regulate the water flow rate and velocity in the main body (1) of the water tank.

2. The energy-dissipating steep slope water conveyance channel according to claim 1, characterized in that: The energy dissipation pool (4) is equipped with multiple energy dissipation blocks (5).

3. The energy-dissipating steep slope water conveyance channel according to claim 2, characterized in that: Multiple energy dissipation blocks (5) are arranged side by side at different heights. The energy dissipation blocks (5) are square structures and made of reinforced concrete.

4. The energy-dissipating steep slope water conveyance channel according to claim 1, characterized in that: The multi-stage energy dissipation sill (3) includes three-stage stepped energy dissipation sills, each with a height of 20-40cm and a length of 50-100cm, and is distributed in a sawtooth pattern.

5. The energy-dissipating steep slope water conveyance channel according to claim 1, characterized in that, It also includes a monitoring system, which includes a water level gauge, a flow meter, and a pressure sensor installed in the water tank for real-time monitoring of water flow parameters.

6. The energy-dissipating steep slope water conveyance channel according to claim 5, characterized in that, It also includes an intelligent control unit, which is connected to the monitoring system and is used to collect monitoring data and automatically control the opening degree of the flow control valve (6) and the regulating gate (7) according to a preset algorithm.

7. The energy-dissipating steep slope water conveyance channel according to claim 1, characterized in that: The bottom of the energy dissipation pool (4) is provided with a sand discharge hole (8) for periodically removing sediment.

8. The energy-dissipating steep slope water conveyance channel according to claim 1, characterized in that: A drive motor is provided on the top of the regulating gate (7).

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