Slope type water inlet pool with lateral WES profile weir safety overflow
By designing the structure of the lateral WES profile weir and overflow tank in the inlet pool, the problems of overflow instability and small calculation of weir width are solved, and more accurate water flow control and structural stability are achieved.
Patent Information
- Application Number
- CN202421766148.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-25
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-07-25
AI Technical Summary
When the existing inlet pool overflows, the rectangular thin-wall weir overflow tongue may be unstable, which may lead to unstable water head flow relationship, and the calculation result of weir width is relatively small, affecting overflow safety and the overall structural stresses affect each other.
A slope-type inlet pool with a lateral WES section weir is designed. By setting up an overflow pool on one side of the inlet pool and a WES section weir at the connection between the inlet pool and the overflow pool, it ensures that the water flow overflows along a predetermined path, making the overflow process more controllable.
Through the design of the WES profile weir, the direction and rate of water flow can be controlled more accurately, ensuring that the water level is within a predetermined range, reducing the energy loss of water flow, improving the stability and durability of the structure, and reducing overflow risk.
Smart Images
Figure CN222809923U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of water inlet pools, in particular to a sloped water inlet pool provided with a lateral WES profile weir for safe overflow. Background Art
[0002] The inlet pool is a structure in water conservancy projects, which is used to collect, regulate and guide water flow into downstream pipes, channels or pumping stations and other facilities. It is usually set up upstream of the water source or pumping station to ensure the stability and continuity of water flow and prevent pump failure due to insufficient water. It can also precipitate and remove impurities in the water to improve water quality. In order to accurately measure and effectively control water flow, prevent the upstream open flow channel culvert from overturning or the inlet pool from being blocked.
[0003] It is necessary to set up a weir at the water inlet pool. At present, holes are directly opened on the side wall of the water inlet pool, and the side wall with holes is used as the side weir. The elevation of the weir top and the design head of the weir top are determined according to the clearance height above the design water level, and the weir width is calculated according to the thin-walled weir theory. However, the overflow water tongue of the rectangular thin-walled weir is unstable, and the overflow water tongue may even be close to the downstream wall of the weir, resulting in the inability to ensure a stable head-flow relationship. According to the calculation and construction requirements of the water inlet pool structure, the thickness of the side wall of the water inlet pool is generally not less than 0.3m. Strictly speaking, the overflow head and the side wall thickness do not fully meet the rectangular thin-walled weir weir flow calculation theory. The flow coefficient calculated by the thin-walled weir is too large, resulting in a small calculation result of the weir width, which affects the overflow safety; at the same time, the overflow part is arranged on the side of the water inlet pool, and the overall structural stress affects each other. Summary of the invention
[0004] The utility model provides a sloped water inlet pool with a lateral WES profile weir for safe overflow, which solves the above-mentioned technical problems.
[0005] The utility model solves the above-mentioned technical problems as follows:
[0006] A sloped water inlet pool with a lateral WES profile weir for safe overflow comprises a water inlet pool, a WES profile weir, an overflow pool and a drain pipe, wherein an overflow pool is arranged on one side of the water inlet pool, the water inlet pool and the overflow pool are connected through an overflow hole, a WES profile weir is arranged at the connection between the water inlet pool and the overflow pool, and a drain pipe is arranged on the side of the overflow pool away from the water inlet pool.
[0007] On the basis of the above technical solution, the present invention can also be improved as follows.
[0008] Furthermore, a side wall is provided in the water inlet pool, and the WES profile weir corresponds to the position of the side wall.
[0009] The beneficial effects of adopting the above further scheme are:
[0010] The design of the WES profile weir corresponds to the sidewall, which can more accurately control the direction and rate of water flow. The overflow holes on the sidewall guide the water flow to the WES profile weir, ensuring that the water overflows along the predetermined path, making the overflow process more controllable.
[0011] Furthermore, the water inlet pool and the overflow pool are provided with waterstops at the connection between the side walls and the WES profile weir.
[0012] The beneficial effects of adopting the above further scheme are:
[0013] The waterstop forms a waterproof barrier between the inlet pool and the overflow pool, which can effectively prevent water from leaking from the connection. This ensures that the water flow in the inlet pool and the overflow pool only flows through the designed overflow path, avoiding water waste and foundation problems caused by increased moisture in the surrounding soil.
[0014] Furthermore, a water stop is provided at the connection between the water inlet pool and the overflow pool.
[0015] The beneficial effects of adopting the above further scheme are:
[0016] The waterstop forms a sealed barrier at the joint between the inlet pool and the overflow pool, which can effectively prevent water from leaking from the joint. This ensures that water flows only through the designed path, avoiding unnecessary water waste.
[0017] Furthermore, the bottom plate elevation of the overflow pool is the same as the bottom plate elevation at the overflow hole of the water inlet pool.
[0018] The beneficial effects of adopting the above further scheme are:
[0019] By making the bottom plate elevation of the overflow pool the same as the bottom plate elevation of the overflow hole of the inlet pool, the water can flow smoothly from the inlet pool to the overflow pool, avoiding turbulent or irregular water flow caused by the height difference. This design can effectively reduce the energy loss of the water flow and ensure a smooth transition of the water flow. When the bottom plate elevations of the overflow pool and the inlet pool are the same, the impact force of the water flow is small and will not cause excessive stress on the overflow hole and overflow pool structure, thereby extending the service life of these structures and reducing the frequency of maintenance and repair.
[0020] Furthermore, the WES profile weir is adapted to the width of the overflow pool.
[0021] The beneficial effects of adopting the above further scheme are:
[0022] The width of the WES profile weir is matched to the width of the overflow pool, ensuring that the water flow is evenly distributed on the overflow weir. This matching design can optimize the overflow effect of the water flow, avoid uneven distribution of the water flow on the weir surface, and ensure that the water flow flows into the overflow pool according to the design requirements.
[0023] Furthermore, the overflow water in the overflow tank is discharged through a drain pipe.
[0024] The beneficial effects of adopting the above further scheme are:
[0025] The drain pipe can quickly drain excess water from the overflow tank, preventing water from stagnating in the overflow tank. This helps keep the system running efficiently, especially in high flow or heavy rain conditions, and can quickly reduce the water level in the overflow tank to prevent overflow or other problems.
[0026] Furthermore, the designed water head height on the weir of the WES section of the overflow hole is greater than 0.5m.
[0027] The beneficial effects of adopting the above further scheme are:
[0028] After considering the clearance height of the inlet pool, the overflow hole with a head height greater than 0.5m on the weir can handle a larger flow. This design ensures that when there is heavy rainfall or a sharp increase in inlet flow, the overflow hole can effectively discharge excess water, prevent the water level in the inlet pool and overflow pool from being too high, and reduce the risk of overflow.
[0029] The beneficial effects of the utility model are:
[0030] The WES Profile Weir is designed to precisely control the water level between the inlet and overflow tanks. The WES Profile Weir is a precisely designed overflow weir with a profile shape that allows for maximum control of the overflow rate of the water flow. With this design, the water level in the inlet tank can be maintained within a predetermined range, ensuring that the water level does not fluctuate dramatically due to flow changes.
[0031] The design of the sidewall and WES profile weir makes the entire structure more stable. The sidewall not only plays a supporting role, but also serves as part of the weir curve of the WES profile weir. Through this design, the impact of the water flow can be more evenly distributed on the structure, reducing local stress concentration, thereby improving the durability and stability of the structure.
[0032] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the utility model with the accompanying drawings. The specific implementation method of the utility model is given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0033] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.
[0034] Figure 1This is a schematic diagram of the top view of the utility model;
[0035] Figure 2 This is a schematic elevation diagram of the water inlet pool of the utility model;
[0036] Figure 3 It is a schematic diagram of the overflow transverse section of the utility model.
[0037] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0038] 1. Overflow hole; 2. Water inlet pool; 3. WES profile weir; 4. Overflow pool; 5. Drain pipe; 6. Water stop; 7. Side wall. Implementation
[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0040] See also Figures 1 to 3 As shown, the embodiment provided by the utility model.
[0041] Embodiment 1
[0042] A sloped water inlet pool with a lateral WES profile weir safety overflow comprises a water inlet pool 2, a WES profile weir 3, an overflow pool 4 and a drain pipe 5. An overflow pool 4 is provided on one side of the water inlet pool 2. A water stop 6 is provided at the connection between the water inlet pool 2 and the overflow pool 4. The bottom plate elevation of the overflow pool 4 is the same as the bottom plate elevation at the overflow hole 1 of the water inlet pool 2. By making the bottom plate elevation of the overflow pool 4 the same as the bottom plate elevation at the overflow hole 1 of the water inlet pool 2, water can flow smoothly from the water inlet pool 2 to the overflow pool 4, avoiding turbulent or irregular flow of water caused by height difference. This design can effectively reduce the energy loss of water flow and ensure a smooth transition of water flow. When the bottom plate elevations of the overflow pool 4 and the water inlet pool 2 are consistent, the impact force of the water flow is small, and will not cause excessive stress on the structures of the overflow hole 1 and the overflow pool 4, thereby extending the service life of these structures and reducing the frequency of maintenance and repair. The water inlet pool 2 is connected to the overflow pool 4 through the overflow hole 1. The height of the designed water head on the WES section weir is greater than 0.5m. After considering the clearance height of the water inlet pool, the overflow hole 1 with a designed water head height greater than 0.5m on the weir can handle a larger flow rate. This design ensures that when the rainfall is heavy or the water inflow increases sharply, the overflow hole 1 can effectively discharge the excess water, prevent the water level of the water inlet pool 2 and the overflow pool 4 from being too high, and reduce the risk of overflow. A WES profile weir 3 is provided at the connection between the water inlet pool 2 and the overflow pool 4. A side wall 7 is provided in the water inlet pool 2. The WES profile weir 3 corresponds to the position of the side wall 7. The side wall 7 is a part of the weir surface curve of the WES profile weir 3. The design of the WES profile weir 3 corresponds to the side wall 7, which can more accurately control the direction and rate of the water flow. The overflow hole 1 of the side wall 7 guides the water flow to the WES profile weir 3, ensuring that the water flow overflows along a predetermined path, making the overflow process more controllable. A water stop 6 is provided at the connection between the water inlet pool 2 and the overflow pool 4 at the side wall 7 and the WES profile weir 3. The water stop 6 forms a waterproof barrier between the water inlet pool 2 and the overflow pool 4, which can effectively prevent water from leaking from the connection. In this way, it can be ensured that the water flow in the water inlet pool 2 and the overflow pool 4 only flows through the designed overflow path, avoiding water resource waste and foundation problems caused by increased moisture in the surrounding soil. The width of the WES profile weir 3 is adapted to the width of the overflow pool 4, and the width of the WES profile weir 3 is adapted to the width of the overflow pool 4, which can ensure that the water flow is evenly distributed on the overflow weir. This matching design can optimize the overflow effect of the water flow, avoid uneven distribution of the water flow on the weir surface, and ensure that the water flow flows into the overflow pool 4 according to the design requirements. A drain pipe 5 is provided on the side of the overflow pool 4 away from the water inlet pool 2. The overflow water in the overflow pool 4 is discharged through the drain pipe 5. The drain pipe 5 can quickly discharge the excess water in the overflow pool 4, avoiding the retention of water in the overflow pool 4. This helps to maintain the efficient operation of the system, especially in high flow or heavy rain conditions, and can quickly reduce the water level in the overflow pool 4 to prevent water from overflowing or causing other problems.
[0043] When a sloped inlet pool with a lateral WES profile weir for safe overflow based on Example 1 is in use: the design of the WES profile weir 3 can accurately control the water level between the inlet pool 2 and the overflow pool 4. The WES profile weir is a precisely designed overflow weir, and its cross-sectional shape can control the overflow rate of the water flow to the greatest extent. Through this design, the water level in the inlet pool 2 can be maintained within a predetermined range, ensuring that the water level will not fluctuate violently due to flow changes, which will eventually lead to the danger of overturning of the upstream open flow channel or the occurrence of a hole in the inlet pool.
[0044] The design of the sidewall 7 and the WES profile weir 3 makes the entire structure more stable. The sidewall 7 not only plays a supporting role, but also serves as part of the weir surface curve of the WES profile weir 3. Through this design, the impact force of the water flow can be more evenly distributed on the structure, reducing local stress concentration, thereby improving the durability and stability of the structure.
[0045] The above description is only a preferred embodiment of the utility model and does not impose any form of limitation on the utility model. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.
Claims
1. A sloped inlet pool with a lateral WES profile weir safety overflow, characterized in that: The invention comprises an inlet pool (2), a WES profile weir (3), an overflow pool (4) and a drainage pipe (5), wherein the overflow pool (4) is provided on one side of the inlet pool (2), the inlet pool (2) and the overflow pool (4) are connected via an overflow hole (1), a WES profile weir (3) is provided at the connection between the inlet pool (2) and the overflow pool (4), and a drainage pipe (5) is provided on the side of the overflow pool (4) facing away from the inlet pool (2).
2. A sloped inlet pool with a lateral WES profile weir safety overflow according to claim 1, characterized in that: A side wall (7) is provided in the water inlet pool (2), and the WES profile weir (3) corresponds to the position of the side wall (7).
3. A sloped inlet pool with a lateral WES profile weir safety overflow according to claim 2, characterized in that: The water inlet pool (2) and the overflow pool (4) are provided with a water stop strip (6) at the connection between the side wall (7) and the WES profile weir (3).
4. A sloped inlet pool with a lateral WES profile weir safety overflow according to claim 1, characterized in that: A water stop strip (6) is provided at the connection between the water inlet pool (2) and the overflow pool (4).
5. A sloped inlet pool with a lateral WES profile weir safety overflow according to claim 1, characterized in that: The elevation of the bottom plate of the overflow pool (4) is the same as the elevation of the bottom plate at the overflow hole (1) of the water inlet pool (2).
6. A sloped inlet pool with a lateral WES profile weir safety overflow according to claim 1, characterized in that: The WES profile weir (3) is adapted to the width of the overflow pool (4).
7. A sloped inlet pool with a lateral WES profile weir safety overflow according to claim 1, characterized in that: The overflow water in the overflow tank (4) is discharged through the drain pipe (5).
8. A sloped inlet pool with a lateral WES profile weir safety overflow according to claim 1, characterized in that: The water head height of the WES section weir (3) of the overflow hole (1) is greater than 0.5 m.