Flow dividing structure for urban drainage
The diversion structure with angled discharge pipes and flow limiting mechanisms addresses slow water flow and pressure issues in urban drainage systems, enhancing system efficiency and preventing damage.
Patent Information
- Application Number
- CN202420703593.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-08
- Publication Date
- 2024-12-17
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Urban drainage systems face issues with slow water flow and pressure buildup leading to potential pipe damage and backflow due to excessive water accumulation, which can disrupt normal operation.
A diversion structure with multiple discharge pipes and check valves, including angled diverter pipes and flow limiting mechanisms, to manage water flow and pressure, ensuring continuous diversion and faster water discharge.
The structure ensures efficient diversion and discharge of water by maintaining pressure and flow rate, preventing backflow and pipe damage, and optimizing drainage system performance.
Smart Images
Figure CN222183584U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of urban drainage, in particular to a diversion structure for urban drainage. Background Art
[0002] The drainage system is an important infrastructure. Water is polluted during use and becomes sewage, which needs to be treated and discharged. In addition, the precipitation and runoff flow in the city are large and need to be discharged in a timely manner to avoid the impact of untimely discharge on the city.
[0003] When more water enters the drainage system, the water flow in the pipes will be slow and the water that needs to be discharged will accumulate, which will cause pressure on the pipe walls in the drainage system. In mild cases, it may cause drainage backflow and failure to discharge in time. In severe cases, it may cause damage to the pipes of the drainage system, affecting the normal operation of the urban drainage system. Utility Model Content
[0004] The purpose of the utility model is to solve the above-mentioned shortcomings in the prior art and to propose a diversion structure for urban drainage.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a diversion structure for urban drainage is designed, including an inlet pipe, a first connecting pipe is connected to the bottom of the inlet pipe, a first check valve is connected to the other end of the first connecting pipe, and a first discharge pipe is installed at the other end of the first check valve;
[0006] A first shunt pipe is installed on the top of the first discharge pipe, and a plurality of second discharge pipes are arranged above the first shunt pipe, and the second discharge pipes are arranged in a stepped manner;
[0007] A second check valve is installed at one end of the second discharge pipe, and the other end of the second check valve is connected to the second connecting pipe. A second diverter pipe is also installed on the second discharge pipe, and the second diverter pipe is connected to the second connecting pipe. The second connecting pipe closest to the first discharge pipe is connected to the first diverter pipe.
[0008] Preferably, the first diverter pipe is arranged on the first discharge pipe at an angle, and the second diverter pipe is arranged on the second discharge pipe at an angle.
[0009] Preferably, a flow limiting mechanism is provided in both the first shunt pipe and the second shunt pipe;
[0010] The current limiting mechanism includes a disc, which is fixed to the inner wall of the first shunt pipe and the inner wall of the second shunt pipe. A plurality of through holes are opened on the disc, and the through holes are arranged along the circumference of the disc. An annular plate is coaxially arranged on one side of the disc, and the formal projection of the annular plate corresponds to the through hole. At least two spaced guide shafts are vertically installed at an edge of one side of the annular plate close to the disc, and the other end of the guide shaft slides through the disc and is connected to the limiting plate. A compression spring is sleeved on the guide shaft, and one end of the compression spring is fixed on the disc, and the other end of the compression spring is fixed on the limiting plate.
[0011] Preferably, an annular cover is provided on a side of the disc away from the annular plate, and the guide shaft and the limit plate are both placed in the annular cover, and the annular cover is fixed to the disc.
[0012] Preferably, two annular sealing gaskets are installed on one side of the annular plate close to the disc, and the radii of the two sealing gaskets are one large and one small, so that the formal projection of the through hole is located between the two sealing gaskets.
[0013] The design scheme proposed by the utility model has the following beneficial effects during application:
[0014] 1. The diversion structure for urban drainage diverts the water entering the water inlet pipe by setting a plurality of second discharge pipes one by one, and performs diversion and drainage operations on the drainage system.
[0015] 2. The diversion structure for urban drainage is installed by connecting several second discharge pipes one by one in sequence, so that when the diversion structure is in use, the excess water can be squeezed into the next discharge pipe only after the current discharge pipe is full. While ensuring effective diversion, the water pressure in each discharge pipe is sufficient when it flows, so that the water can flow faster in the discharge pipe. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;
[0017] Figure 2 The structure of the utility model is shown in FIG. Figure 2 ;
[0018] Figure 3 This is a top structural diagram of the annular plate of the utility model;
[0019] Figure 4 This is a cross-sectional structural diagram of the disk of the utility model.
[0020] In the figure: 1, water inlet pipe; 2, first connecting pipe; 3, first check valve; 4, first discharge pipe; 5, first diversion pipe; 6, second connecting pipe; 7, second check valve; 8, second discharge pipe; 9, second diversion pipe; 10, disc; 11, through hole; 12, annular plate; 13, annular cover; 14, guide shaft; 15, compression spring; 16, limit plate; 17, sealing gasket. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0022] Reference Figure 1-Figure 4 A diversion structure for urban drainage includes an inlet pipe 1, a first connecting pipe 2 is connected to the bottom of the inlet pipe 1, a first check valve 3 is connected to the other end of the first connecting pipe 2, and a first discharge pipe 4 is installed at the other end of the first check valve 3. In actual use, rainwater, sewage, etc. in the city are all introduced into the inlet pipe 1 and enter the diversion structure from the inlet pipe 1.
[0023] like Figure 1 As shown in the figure, a first diverter pipe 5 is installed on the top of the first discharge pipe 4, and a plurality of second discharge pipes 8 are arranged above the first diverter pipe 5, and the second discharge pipes 8 are arranged in a stepped manner; a second check valve 7 is installed at one end of the second discharge pipe 8, and the other end of the second check valve 7 is connected to the second connecting pipe 6, and a second diverter pipe 9 is also installed on the second discharge pipe 8, and the second diverter pipe 9 is connected to the second connecting pipe 6, and the second connecting pipe 6 closest to the first discharge pipe 4 is connected to the first diverter pipe 5, and the water entering the first discharge pipe 4 will flow along the first discharge pipe 4. The discharge pipe 4 is sent to the wastewater treatment plant. When the water in the first discharge pipe 4 is full, the water will squeeze upward from the first diversion pipe 5 into the second discharge pipe 8. When the second discharge pipe 8 is full, the water will be squeezed into the next second discharge pipe 8. This continuous operation can ensure that the discharge pipe is always full of water during diversion. Because of the interaction of forces, when the water is full and acts on the discharge pipe, the discharge pipe will also exert force on the water, and there is also force between water and water, which can accelerate the flow rate of water in the discharge pipe and speed up the discharge of water.
[0024] In actual use, the check valve can prevent the backflow of water during discharge; in order to avoid the water in the discharge pipe from being diverted to the next discharge pipe and causing damage to the pipe wall due to excessive water pressure, the check valve is used to prevent the water from flowing back to the next discharge pipe. Figure 1 As shown, the first diverter pipe 5 is arranged obliquely on the first discharge pipe 4, and the second diverter pipe 9 is arranged obliquely on the second discharge pipe 8, which can buffer the flowing water.
[0025] It should be noted that in order to increase the flow rate of water to the second discharge pipe 8 during diversion and to maintain the normal flow pressure in the first discharge pipe 4, a flow limiting mechanism is provided in the first diversion pipe 5 and the second diversion pipe 9;
[0026] like Figure 2 and Figure 4 As shown, the current limiting mechanism includes a disc 10, which is fixed to the inner wall of the first shunt pipe 5 and the inner wall of the second shunt pipe 9. A plurality of through holes 11 are provided on the disc 10, and the through holes 11 are arranged on the disc 10 along the circumference. An annular plate 12 is coaxially provided on one side of the disc 10, and the formal projection of the annular plate 12 corresponds to the through hole 11. At least two spaced guide shafts 14 are vertically installed at the edge of one side of the annular plate 12 close to the disc 10, and the other end of the guide shaft 14 slides through the disc 10 and is connected to the limiting plate 16. A compression spring 15 is sleeved on the guide shaft 14, and one end of the compression spring 15 is fixed to the disc 10. The other end of the compression spring 15 is fixed on the limit plate 16. In actual use, the compression spring 15 remains elastic regardless of whether there is water in contact with the disc 10. When the water slowly fills the discharge pipe, the water will continue to converge on the disc 10. At this time, due to the elastic effect of the compression spring 15, the water is hindered from flowing to the next discharge pipe, and the water will continue to accumulate. When the pressure of the water on the disc 10 is greater than the elastic force of the compression spring 15, the annular plate 12 begins to be pushed open, and flows from the annular plate 12 into the next discharge pipe for diversion, thereby delaying the direct diversion of the water flow, allowing the water to flow quickly under pressure and increasing the flow rate during diversion.
[0027] like Figure 4 As shown, an annular cover 13 is provided on the side of the disc 10 away from the annular plate 12, and the guide shaft 14 and the limit plate 16 are both placed in the annular cover 13, and the annular cover 13 is fixed to the disc 10 to protect the compression spring 15 from being corroded by water.
[0028] Furthermore, two annular sealing gaskets 17 are installed on one side of the annular plate 12 close to the disc 10. The radii of the two sealing gaskets 17 are large and small, so that the formal projection of the through hole 11 is located between the two sealing gaskets 17 to ensure the sealing when the annular plate 12 and the disc 10 are fitted.
[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A diversion structure for urban drainage, characterized in that: It comprises a water inlet pipe (1), a first connecting pipe (2) is connected to the bottom of the water inlet pipe (1), the other end of the first connecting pipe (2) is connected to a first check valve (3), and the other end of the first check valve (3) is installed with a first discharge pipe (4); A first flow distribution pipe (5) is installed on the top of the first flow distribution pipe (4), and a plurality of second flow distribution pipes (8) are arranged above the first flow distribution pipe (5), and the second flow distribution pipes (8) are arranged in a stepped manner; A second check valve (7) is installed at one end of the second discharge pipe (8), and the other end of the second check valve (7) is connected to the second connecting pipe (6). A second branch pipe (9) is also installed on the second discharge pipe (8), and the second branch pipe (9) is connected to the second connecting pipe (6). The second connecting pipe (6) closest to the first discharge pipe (4) is connected to the first branch pipe (5).
2. A diversion structure for urban drainage according to claim 1, characterized in that: The first branch pipe (5) is arranged on the first discharge pipe (4) at an angle, and the second branch pipe (9) is arranged on the second discharge pipe (8) at an angle.
3. A diversion structure for urban drainage according to claim 1, characterized in that: A flow limiting mechanism is provided in the first shunt pipe (5) and the second shunt pipe (9); The flow limiting mechanism comprises a disc (10), the disc (10) being fixed to the inner wall of the first shunt pipe (5) and the inner wall of the second shunt pipe (9), a plurality of through holes (11) being opened on the disc (10), the through holes (11) being arranged on the disc (10) along a circumference, an annular plate (12) being coaxially arranged on one side of the disc (10), the formal projection of the annular plate (12) corresponding to the through holes (11), at least two guide shafts (14) arranged at intervals being vertically installed at an edge of one side of the annular plate (12) close to the disc (10), the other end of the guide shaft (14) slidingly passing through the disc (10) and being connected to a limiting plate (16), a compression spring (15) being sleeved on the guide shaft (14), one end of the compression spring (15) being fixed on the disc (10), and the other end of the compression spring (15) being fixed on the limiting plate (16).
4. A diversion structure for urban drainage according to claim 3, characterized in that: An annular cover (13) is arranged on the side of the disc (10) away from the annular plate (12), and the guide shaft (14) and the limiting plate (16) are both placed in the annular cover (13), while the annular cover (13) is fixed to the disc (10).
5. A diversion structure for urban drainage according to claim 3, characterized in that: Two annular sealing pads (17) are installed on one side of the annular plate (12) close to the disc (10). The radii of the two sealing pads (17) are one large and one small, so that the formal projection of the through hole (11) is located between the two sealing pads (17).