A water channel structure of a rolling flow regime
By setting a bottom plate module in the middle section of the waterway to change the longitudinal slope boundary shape, a tumbling flow pattern is formed, which solves the problem that existing waterways are difficult to form a tumbling flow and achieves a cost-effective waterway design.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CITIC GENERAL INST OF ARCHITECTURAL DESIGN & RES
- Filing Date
- 2025-06-12
- Publication Date
- 2026-06-16
AI Technical Summary
Existing waterway structures are difficult to form a turbulent flow pattern, and construction and operation costs are high.
Design a tumbling flow channel structure, including an upstream channel, a mid-section channel and a downstream channel connected in sequence, and set a bottom plate module on the mid-section channel to change the longitudinal slope boundary line of the bottom plate to form a tumbling flow state.
By altering the boundary line of the longitudinal slope of the base plate, a tumbling flow pattern is created, reducing the construction scale and saving construction and operating costs.
Smart Images
Figure CN224363262U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of water emergency rescue technology, specifically relating to a tumbling flow waterway structure. Background Technology
[0002] In recent years, my country has built or is building nearly ten whitewater training facilities.
[0003] Existing waterway structures are basically divided into two types:
[0004] (1) Fixed waterway bottom plate + fixed obstacle; (2) Fixed waterway bottom plate + water blocking module.
[0005] The formation of the flow pattern in a rapid waterway mainly depends on hydraulic and boundary conditions. The most important factors in hydraulic conditions are the flow velocity or head difference, while the most important factors in boundary conditions are the longitudinal slope of the waterway floor and the shape of obstacles. When the waterway floor adopts a fixed structure, the longitudinal slope and gradient of the floor cannot be changed, which means that the flow velocity over a specific horizontal length is constant.
[0006] The most common dangerous flow patterns in water rescue are tumbling flow patterns, which require high flow velocities to form, such as a Froude number (Fr) of 4.5 or higher. Tumbling flow patterns are often impossible to form by fixing the bottom of the waterway.
[0007] Therefore, how to design waterways with tumbling flow patterns and reduce construction and operation costs is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0008] To address the shortcomings of existing technologies, this invention provides a tumbling flow channel structure that can solve the aforementioned problems.
[0009] To achieve the above objectives, the present invention adopts the following technical solution: a tumbling flow waterway structure, comprising an upstream waterway, a mid-section waterway, and a downstream waterway connected in sequence;
[0010] The elevation of the bottom plate of the upstream waterway is higher than that of the bottom plate of the downstream waterway;
[0011] The middle section of the waterway includes an upstream section and a downstream section, the upstream section being flush with the upstream waterway and the downstream section being flush with the downstream waterway;
[0012] A bottom plate module is provided on the middle section of the waterway. The bottom plate module has a top surface and a first slope on the upstream side, which extends from the end of the upstream waterway to the front end of the top surface. The bottom plate module has a second slope on the downstream side, which extends from the end of the top surface to the front end of the downstream waterway.
[0013] Preferably, the base plate module includes a first module, a second module, a third module, a fourth module, and a fifth module;
[0014] The first module, the third module, and the fifth module are all right-angled triangular prisms, and the second module and the fourth module are all cuboids. The fourth module and the fifth module are sequentially arranged on the downstream section, and the first module, the second module, and the third module are sequentially arranged on the upstream section. The third module partially overlaps the fourth module. The inclined surface of the first module is the first slope, and the top surface of the second module is the top surface. The inclined surface of the third module is connected to the inclined surface of the fifth module and together they form the second slope.
[0015] Preferably, both the upstream segment and the downstream segment are provided with slots, and the first module, the second module, the third module, the fourth module, and the fifth module are all provided with buckles that are adapted to the slots.
[0016] Preferably, the top surface width is 1.0m to 2.0m.
[0017] Preferably, the height difference between the top surface and the bottom plate of the upstream section is 1.0m to 1.5m.
[0018] Preferably, the angle between the first slope and the bottom plate of the upstream waterway is 20° to 30°.
[0019] Preferably, the angle between the second slope and the bottom plate of the downstream waterway is 10° to 20°.
[0020] Preferably, the upstream waterway is 5m to 10m long, the mid-section waterway is 15m to 30m long, and the downstream waterway is 5m to 10m long.
[0021] Preferably, the widths of the upstream waterway, the mid-section waterway, and the downstream waterway are all 6m to 10m.
[0022] Preferably, the height difference between the upstream section and the downstream section is 0.5m to 1.5m.
[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0024] This utility model provides a tumbling flow waterway structure. According to the needs of tumbling flow, a bottom plate module is set on the middle section of the waterway to change the longitudinal slope boundary line of the bottom plate. The second slope can increase the water flow velocity to form a tumbling flow, thereby reducing the construction scale and saving construction and operating costs. Attached Figure Description
[0025] Figure 1A front view schematic diagram of a tumbling flow channel structure provided in an embodiment of this utility model;
[0026] Figure 2 A front view structural schematic diagram of a bottom plate module and related parts of a tumbling flow channel structure provided for an embodiment of this utility model;
[0027] Figure 3 A top view of the slot and related parts of a tumbling flow channel structure provided in this embodiment of the utility model;
[0028] Figure 4 A three-dimensional structural diagram of the second module of a tumbling flow channel structure provided for an embodiment of this utility model;
[0029] Figure 5 This is a front view of the slot and related parts of a tumbling flow channel structure provided in an embodiment of the present utility model.
[0030] The attached diagram lists the components represented by each number as follows:
[0031] 1. Upstream waterway;
[0032] 2. Middle section of the waterway; 21. Upstream section; 22. Downstream section;
[0033] 3. Downstream waterway;
[0034] 4. Base plate module; 401. First module; 402. Second module; 403. Third module; 404. Fourth module; 405. Fifth module;
[0035] 5. First slope;
[0036] 6. Second slope;
[0037] 7. Top surface;
[0038] 8. Card slot;
[0039] 9. Insert rod;
[0040] 10. Shrapnel;
[0041] 11. Annular groove;
[0042] 12. Groove;
[0043] 13. Pull rod;
[0044] 14. Cover plate. Detailed Implementation
[0045] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.
[0046] This embodiment provides a tumbling flow channel structure, including an upstream channel 1, a mid-section channel 2, and a downstream channel 3 connected in sequence.
[0047] Among them, the bottom elevation of the upstream waterway 1 is higher than that of the bottom elevation of the downstream waterway 3;
[0048] For example, see Figure 1 From left to right, they are the upstream waterway 1, the middle waterway 2, and the downstream waterway 3. The upstream waterway 1, the middle waterway 2, and the downstream waterway 3 are all composed of spliced bottom plates, and the widths of the upstream waterway 1, the middle waterway 2, and the downstream waterway 3 are the same. The bottom plate elevation of the upstream waterway 1 is higher than that of the bottom plate elevation of the downstream waterway 3.
[0049] The middle section of the waterway 2 includes an upstream section 21 and a downstream section 22. The upstream section 21 is level with the upstream waterway 1, and the downstream section 22 is level with the downstream waterway 3.
[0050] For example, see Figure 1 The middle section of the waterway 2 includes, from left to right, an upstream section 21 and a downstream section 22. The left end of the upstream section 21 is aligned with and connected to the right end of the upstream waterway 1, and the right end of the downstream section 22 is aligned with and connected to the left end of the downstream waterway 3.
[0051] A bottom plate module 4 is provided on the middle section waterway 2. The bottom plate module 4 has a top surface 7. The upstream side of the bottom plate module 4 has a first slope 5, which extends from the end of the upstream waterway 1 to the front end of the top surface 7. The downstream side of the bottom plate module 4 has a second slope 6, which extends from the end of the top surface 7 to the front end of the downstream waterway 3.
[0052] For example, see Figure 2 The middle section of the waterway 2 is equipped with a first module 401, a second module 402, a third module 403, a fourth module 404, and a fifth module 405. The first module 401, the third module 403, and the fifth module 405 are all right-angled triangular prisms, while the second module 402 and the fourth module 404 are both cuboids.
[0053] The fourth module 404 and the fifth module 405 are sequentially arranged on the downstream segment 22 from left to right. The left end of the fourth module 404 is aligned with the left end of the downstream segment 22. The slope of the fifth module 405 faces to the right, and the right end of the fifth module 405 is aligned with the right end of the downstream segment 22. The top of the fourth module 404 is flush with the top of the fifth module 405.
[0054] The first module 401, the second module 402, and the third module 403 are sequentially arranged from left to right on the upstream section 21. The left end of the first module 401 is aligned with the left end of the upstream section 21, and the slope of the first module 401 faces left, forming the first slope 5. The tops of the first module 401, the second module 402, and the third module 403 are flush, forming the top surface 7 of the second module 402. The slope of the third module 403 faces right, and the right side of the third module 403 overlaps with the fourth module 404. The slope of the third module 403 connects with the slope of the fifth module 405, together forming the second slope 6.
[0055] In summary, when the water flows from left to right, the second slope 6 is the guiding slope. The first module 401, the second module 402, and the third module 403 can increase the height of the top of the guiding slope. At the same time, the third module 403 and the fifth module 405 can lengthen the guiding slope, while the fourth module 404 provides support, so that the water flow forms a stable tumbling flow state.
[0056] Therefore, the tumbling flow channel structure provided in this embodiment, according to the needs of the tumbling flow pattern, sets up a first module 401, a second module 402, a third module 403, a fourth module 404, and a fifth module 405 on the middle section of the channel 2 to change the longitudinal slope boundary line of the bottom plate. By increasing the height and length of the guide slope, the effect of increasing the water flow velocity is achieved, which can form a tumbling flow pattern, thereby reducing the construction scale and saving construction and operating costs.
[0057] Based on the above technical solution, in the technical solution provided in this embodiment, both the upstream segment 21 and the downstream segment 22 are provided with slots 8, and the first module 401, the second module 402, the third module 403, the fourth module 404 and the fifth module 405 are provided with buckles that are adapted to the slots 8.
[0058] For example, see Figures 2-3 The surface of the base plate of the upstream section 21 has three rows of slots 8, which correspond to the first module 401, the second module 402, and the third module 403, respectively. The bottom of the first module 401 has a row of clips. During installation, the first module 401 is placed on the surface of the base plate of the upstream section 21, and the clips at the bottom of the first module 401 are inserted into the corresponding slots 8. The slots 8 provide a certain degree of restraint for the clips, thus ensuring the stability of the first module 401. Similarly, the installation methods for the second module 402 and the third module 403 are similar.
[0059] The downstream section 22 base plate surface has two rows of slots 8, which correspond to the fourth module 404 and the fifth module 405 respectively. The fourth module 404 has a row of clips at its bottom. During installation, the fourth module 404 is placed on the downstream section 22 base plate surface, ensuring that the clips at the bottom of the fourth module 404 are engaged in the corresponding slots 8. The slots 8 provide a certain degree of restraint on the clips, thus ensuring the stability of the fourth module 404. Similarly, the installation method for the fifth module 405 is similar.
[0060] The buckle can include a rod 9, a spring piece 10 on the side wall of the rod 9, and an annular groove 11 on the side wall of the slot 8, with the rod 9 and slot 8 being adapted to each other.
[0061] For example, see Figure 5 When installing the first module 401, the insert rod 9 is inserted downwards into the slot 8 of the upstream section 21. The spring piece 10 is compressed and continues to move downwards until it enters the annular groove 11, at which point it returns to its original position. At this time, the annular groove 11 provides a certain degree of restraint for the spring piece 10, ensuring that the first module 401 remains stable on the surface of the upstream section 21. Similarly, the installation method for other modules is similar.
[0062] Furthermore, the bottom of the first module 401 is provided with a screw hole, and the top of the insertion rod 9 is screwed into the screw hole. The insertion rod 9 can be disassembled or installed by rotating it, which is simple to operate and convenient for transportation.
[0063] Secondly, the top surface of the second module 402 is provided with an embedded groove 12, see [reference]. Figure 4 A pull rod 13 is fixedly installed inside the groove 12. The pull rod 13 facilitates the lifting of the second module 402 manually or mechanically, making operation more convenient. A cover plate 14 is installed at the groove 12 to close the groove 12, so that the top surface of the second module 402 remains continuous and intact.
[0064] Similarly, other modules are also provided with grooves 12, pull rods 13, and cover plates 14. For example, the first module 401 has a groove 12 on its inclined surface, a pull rod 13 is fixedly installed in the corresponding groove 12, and a cover plate 14 is installed at the groove 12 to facilitate manual or mechanical lifting of the first module 401.
[0065] In the technical solution provided in this embodiment, the top surface 7 is 1.0m to 2.0m wide. The height difference between the top surface 7 and the bottom plate of the upstream section 21 is 1.0m to 1.5m.
[0066] The angle between the first slope 5 and the bottom plate of the upstream waterway 1 is 20° to 30°.
[0067] The angle between the second slope 6 and the bottom plate of the downstream waterway 3 is 10° to 20°.
[0068] The upstream waterway 1 is 5m to 10m long, the middle waterway 2 is 15m to 30m long, and the downstream waterway 3 is 5m to 10m long.
[0069] The widths of the upstream waterway 1, the middle waterway 2, and the downstream waterway 3 are all 6m to 10m.
[0070] The elevation difference between upstream section 21 and downstream section 22 is 0.5m to 1.5m.
[0071] The flow rate of water flowing from left to right is 3m³. 3 / s~6m 3 / s, the water level difference between upstream channel 1 and downstream channel 3 is 2.0m to 2.5m.
[0072] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0073] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0074] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.
[0075] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.
Claims
1. A tumbling flow channel structure, characterized in that, Including the upstream waterway (1), the middle waterway (2), and the downstream waterway (3) connected in sequence; The bottom elevation of the upstream waterway (1) is higher than that of the bottom elevation of the downstream waterway (3); The middle section of the waterway (2) includes an upstream section (21) and a downstream section (22). The upstream section (21) is flush with the upstream waterway (1), and the downstream section (22) is flush with the downstream waterway (3). The middle section waterway (2) is provided with a bottom plate module (4), the bottom plate module (4) has a top surface (7), the upstream side of the bottom plate module (4) has a first slope (5), the first slope (5) extends from the end of the upstream waterway (1) to the front end of the top surface (7), the downstream side of the bottom plate module (4) has a second slope (6), the second slope (6) extends from the end of the top surface (7) to the front end of the downstream waterway (3).
2. The tumbling flow channel structure according to claim 1, characterized in that, The base plate module (4) includes a first module (401), a second module (402), a third module (403), a fourth module (404), and a fifth module (405). The first module (401), the third module (403), and the fifth module (405) are all right-angled triangular prisms, the second module (402) and the fourth module (404) are all cuboids, the fourth module (404) and the fifth module (405) are sequentially arranged on the downstream section (22), the first module (401), the second module (402), and the third module (403) are sequentially arranged on the upstream section (21), the third module (403) is partially overlapped on the fourth module (404), the inclined surface of the first module (401) is the first slope (5), the top surface of the second module (402) is the top surface (7), the inclined surface of the third module (403) is connected to the inclined surface of the fifth module (405), and together they form the second slope (6).
3. The tumbling flow channel structure according to claim 2, characterized in that, Both the upstream section (21) and the downstream section (22) are provided with slots (8), and the first module (401), the second module (402), the third module (403), the fourth module (404), and the fifth module (405) are provided with buckles that are adapted to the slots (8).
4. The tumbling flow channel structure according to claim 1, characterized in that, The top surface (7) is 1.0m to 2.0m wide.
5. The tumbling flow channel structure according to claim 1, characterized in that, The height difference between the top surface (7) and the bottom plate of the upstream section (21) is 1.0m to 1.5m.
6. The tumbling flow channel structure according to claim 1, characterized in that, The angle between the first slope (5) and the bottom plate of the upstream waterway (1) is 20° to 30°.
7. The tumbling flow channel structure according to claim 1, characterized in that, The angle between the second slope (6) and the bottom plate of the downstream waterway (3) is 10° to 20°.
8. The tumbling flow channel structure according to claim 1, characterized in that, The upstream waterway (1) is 5m to 10m long, the middle waterway (2) is 15m to 30m long, and the downstream waterway (3) is 5m to 10m long.
9. The tumbling flow channel structure according to claim 1, characterized in that, The widths of the upstream waterway (1), the mid-section waterway (2), and the downstream waterway (3) are all 6m to 10m.
10. A tumbling flow channel structure according to claim 1, characterized in that, The height difference between the upstream section (21) and the downstream section (22) is 0.5m to 1.5m.