Rain peak shunting device and control method thereof

Abstract

The invention provides a rain peak flow dividing device and a control method thereof.The rain peak flow dividing device comprises a flow dividing box, rainwater can enter the flow dividing box through the top, the first side of the flow dividing box is connected with a first box body through a first connecting pipe, the second side of the flow dividing box is connected with a drainage pipe network through a first drainage pipe, and the other side of the flow dividing box is connected with a second box body through a second connecting pipe; the other side of the second box body is connected with a second drain pipe; a first flow dividing groove communicated with the first connecting pipe, a second flow dividing groove communicated with the first drainage pipe and a third flow dividing groove communicated with the second connecting pipe are formed in the flow dividing box, and rainwater entering the flow dividing box can correspondingly flow into the first box body, the first drainage pipe or the second box body according to different rainfall; a multi-stage buffering mode is adopted, the rainwater peak flow coping capacity of the drainage system is remarkably improved, the possibility that connectors and pipelines are broken due to instantaneous high pressure during rainstorm is reduced, the disaster resistance toughness of the drainage system under overstandard rainfall is improved, and the urban inland inundation risk is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of rainwater treatment, and in particular to a rain peak diversion device and a control method thereof. Background Art

[0002] The rainwater diversion device in the prior art often discharges domestic sewage into the sewage pipe network and rainwater into the rainwater pipe network according to the different types of influent water, so as to achieve the diversion effect.

[0003] However, the existing rainwater diversion device still has the following defects and deficiencies in actual use: 1) Existing rainwater diversion devices often use a single reservoir or direct discharge system, which has insufficient capacity to handle peak rainwater flow. During heavy rain, the instantaneous high pressure can easily cause the interface and pipe to rupture, posing the risk of urban flooding.

[0004] 2) Since the initial runoff of rainfall washes the roads, the initial runoff often carries a large amount of road surface pollutants. Existing rainwater diversion devices often discharge the initial runoff directly or mix it, causing pollutants to spread, thereby further aggravating the non-point source pollution load.

[0005] 3) Existing rainwater diversion devices are mostly fixed structures, with high modification costs, great environmental impact during use, and a narrow scope of application.

[0006] Therefore, there is an urgent need to provide a new solution to solve the defects and shortcomings in the above-mentioned prior art. Summary of the Invention

[0007] In order to solve the defects and deficiencies in the prior art, the present invention provides a rain peak diversion device and a control method thereof.

[0008] The specific solution provided by the present invention is: A rain peak diversion device includes a diversion box, rainwater can enter the diversion box through the top, the first side of the diversion box is connected to the first box body through a first connecting pipe, the second side of the diversion box is connected to the drainage network through a first drain pipe, the other side of the diversion box is connected to the second box body through a second connecting pipe, and the other side of the second box body is connected to the second drain pipe; it is characterized in that: the interior of the diversion box is respectively provided with a first diversion trough connected to the first connecting pipe, a second diversion trough connected to the first drain pipe and a third diversion trough connected to the second connecting pipe, and the rainwater entering the diversion box can flow into the first box body, the first drain pipe or the second box according to the different rainfall amounts.

[0009] As a further preferred embodiment of the present invention, the first diversion trough is arranged at the top of the second diversion trough and the third diversion trough and is separated from the second diversion trough by a first partition plate, the second diversion trough and the third diversion trough are separated by a second partition plate, and the second partition plate is arranged at the bottom of the first diversion trough.

[0010] As a further preferred embodiment of the present invention, a water inlet cover is fixed on the top of the diversion box and above the first diversion trough, and a plurality of water inlets are opened inside the water inlet cover.

[0011] As a further preferred embodiment of the present invention, an inspection cover is further provided on the top of the diversion box and on one side of the water inlet cover.

[0012] As a further preferred embodiment of the present invention, the diameter of the pipe opening of the first drainage pipe is the same as the diameter of the pipe opening of the drainage pipe network.

[0013] As a further preferred embodiment of the present invention, rainwater can flow into the first diversion trough inside the diversion box through the water inlet cover plate, and then flow into the interior of the first box body through the first connecting pipe connected to the first diversion trough.

[0014] As a further preferred embodiment of the present invention, when the liquid level inside the first diversion trough is higher than the first partition, the rainwater inside the first diversion trough can cross the first partition into the second diversion trough, and then flow into the drainage network through the first drainage pipe connected to the second diversion trough.

[0015] As a further preferred embodiment of the present invention, when the rainfall is greater than the upper limit of the drainage network, the rainwater inside the second diversion trough can pass over the second partition into the third diversion trough, and then flow into the second box through the second connecting pipe connected to the third diversion trough.

[0016] As a further preferred embodiment of the present invention, when the second box is filled with rainwater, the second drain pipe is opened to drain water, and the discharge objects of the second drain pipe include at least one or more combinations of natural water bodies, underground recharge facilities and underground storage facilities.

[0017] Furthermore, the present invention also provides a control method for a rain peak diversion device, which is characterized by comprising the following steps: S1: When rainfall begins, rainwater flows into the first diversion trough inside the diversion box through the water inlet cover plate, and then flows into the first box body through the first connecting pipe connected to the first diversion trough; S2: During the middle of the rainfall period, when the liquid level inside the first diversion trough is higher than the first partition, the rainwater inside the first diversion trough can pass through the first partition into the second diversion trough, and then flow into the drainage network through the first drainage pipe connected to the second diversion trough; S3: When the rainfall exceeds the upper limit of the drainage network, the rainwater in the second diversion trough can pass through the second partition into the third diversion trough, and then flow into the second box through the second connecting pipe connected to the third diversion trough; S4: When the second tank is filled with rainwater, the second drain pipe is opened to drain the water outward.

[0018] Compared with the existing technology, the present invention can achieve the following technical effects: 1) The present invention provides a rain peak diversion device and a control method thereof. By arranging a first diversion trough connected to a first connecting pipe, a second diversion trough connected to a first drainage pipe, and a third diversion trough connected to a second connecting pipe inside a diversion box, a multi-stage buffering method is adopted to significantly improve the drainage system's ability to cope with peak rainwater flow, reduce the possibility of interface and pipe rupture caused by instantaneous high pressure during heavy rain, improve the drainage system's disaster resistance under super-standard rainfall, and reduce the risk of urban waterlogging.

[0019] 2) The present invention provides a rain peak diversion device and a control method thereof, wherein a first side of a diversion box is connected to a first box body via a first connecting pipe, and first diversion troughs connected to the first connecting pipe are respectively provided inside the diversion box, thereby reducing the pollution of initial runoff rainwater through the initial flushing effect, and sending the pollutants of the initial runoff rainwater into the first box body through the first connecting pipe, thereby realizing staged storage and resource utilization of runoff pollution control, and reducing the non-point source pollution load.

[0020] 3) This invention provides a rain peak diversion device and control method. Each box, connecting pipe, and drainage pipe utilize a modular design. The number and capacity of the boxes can be flexibly adjusted based on parameters such as rainfall frequency and pipe network capacity to accommodate varying extreme rainfall trends. Furthermore, this modular design allows for decentralized construction and on-site interconnection of modules, making it suitable for a variety of scenarios, including new and old urban areas and industrial zones. It is minimally impacted by the environment and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Shown is a structural stereogram of the rain peak diversion device provided by the present invention.

[0022] Figure 2 Shown is a structural explosion diagram of the rain peak diversion device provided by the present invention.

[0023] Figure 3 Shown is a top view of the structure of the rain peak diversion device provided by the present invention.

[0024] Figure 4 Shown along Figure 3 Front cross-sectional view at line AA.

[0025] Figure 5Shown along Figure 3 Side cross-sectional view at line BB.

[0026] Figure 6 Shown is a diagram of the internal structure of the diverter box provided by the present invention.

[0027] Figure 7 Shown is a schematic diagram of the working state of rainwater flowing through the first diversion trough of the present invention.

[0028] Figure 8 Shown is a schematic diagram of the working state of rainwater flowing through the second diversion trough of the present invention.

[0029] Figure 9 Shown is a schematic diagram of the working state of rainwater flowing through the third diversion trough of the present invention.

[0030] Figure 10 The figure shows the working diagram of the second drain pipe connected to the third diversion trough of the present invention when it is opened.

[0031] Figure 11 Shown is a flow chart of the steps of the control method provided by the present invention.

[0032] Figure 12 Shown is a curve diagram of the change of rainfall flow rate with rainfall time according to the present invention. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0036] [First embodiment] like Figure 1-5 FIG. 1 shows a rain peak diversion device provided by the first embodiment of the present invention. Figure 1 As shown, it includes a diversion box 100, rainwater can enter the diversion box 100 through the top, the first side of the diversion box 100 is connected to the first box body 200 through the first connecting pipe TL1, the second side of the diversion box 100 is connected to the drainage network through the first drainage pipe TP1, the other side of the diversion box 100 is connected to the second box body 300 through the second connecting pipe TL1, and the other side of the second box body 300 is connected to the second drainage pipe TP2; in this embodiment, the interior of the diversion box 100 is respectively provided with a first diversion groove S1 connected to the first connecting pipe TL1 , a second diversion trough S2 connected to the first drainage pipe TP1 and a third diversion trough S3 connected to the second connecting pipe TL2. The rainwater entering the diversion box 100 can flow into the first box body 200, the first drainage pipe TP1 or the second box body 300 according to the different rainfall amounts. The multi-level buffering method significantly improves the drainage system's ability to cope with peak rainwater flow, reduces the possibility of interface and pipe rupture caused by instantaneous high pressure during heavy rain, improves the drainage system's disaster resistance under super-standard rainfall, and reduces the risk of urban waterlogging.

[0037] like Figure 6 As shown, the first diversion trough S1 in this embodiment is arranged at the top of the second diversion trough S2 and the third diversion trough S3 and is separated from the second diversion trough S2 by the first partition B1. After the first box body 200 is filled, the internal liquid level of the first diversion trough S1 gradually rises until it is higher than the top of the first partition B1. Thereafter, the rainwater entering the diversion box 100 flows over the first partition B1 into the second diversion trough S2. The second diversion trough S2 and the third diversion trough S3 are separated by the second partition B2. When the rainfall is greater than the upper limit of the drainage network, the internal liquid level of the second diversion trough S2 gradually rises until it is higher than the top of the second partition B2. Thereafter, the rainwater flowing into the diversion box 100 flows over the second partition B2 into the third diversion trough S3, and the second partition B2 is arranged at the bottom of the first diversion trough S1 to avoid adverse effects on the process of rainwater flowing from the first diversion trough to the second diversion trough.

[0038] The rainwater entering the diversion box 100 first flows into the first box body 200 through the first connecting pipe TL1. When the first box body 200 is full of water, the liquid level inside the first diversion trough S1 gradually rises until it is higher than the top of the first partition B1. Thereafter, the rainwater flowing into the diversion box 100 flows into the drainage network through the first drain pipe TP1 for discharge. When the rainfall is greater than the upper limit of the drainage network, the liquid level inside the second diversion trough S2 gradually rises until it is higher than the top of the second partition B2. Thereafter, the rainwater flowing into the diversion box 100 flows into the second box body 300 through the second connecting pipe TL2. When the second box body 300 is full of rainwater, the second drain pipe TP2 is opened to drain the water outward.

[0039] like Figure 1-2 As shown, in this embodiment, a water inlet cover plate 101 is fixed to the top of the diversion box 100, above the first diversion slot S1. Several water inlets 1011 are provided within the water inlet cover plate 101. Rainwater can flow into the diversion box 100 through these inlets 1011, while also filtering out large particles of impurities in the road runoff. An inspection cover plate 102 is also provided on the top of the diversion box 100, on one side of the water inlet cover plate 101. This access cover plate 102 facilitates periodic inspection, cleaning, and maintenance of the interior of the diversion box 100.

[0040] like Figure 7 As shown, rainwater can flow into the first diversion trough S1 inside the diversion box 100 through the water inlet cover 101, and then flow into the first box body 200 through the first connecting pipe TL1 connected to the first diversion trough S1, thereby reducing the pollution of the initial runoff rainwater through the initial flushing effect, and sending the pollutants of the initial runoff rainwater into the first box body through the first connecting pipe, realizing the staged storage and resource utilization of runoff pollution control, and reducing the non-point source pollution load.

[0041] like Figure 8 As shown, when the liquid level inside the first diversion trough S1 is higher than the first partition B1, the rainwater inside the first diversion trough S1 can pass through the first partition B1 and enter the second diversion trough S2, and then flow into the drainage network through the first drainage pipe TP1 connected to the second diversion trough S2. In this embodiment, the pipe orifice aperture of the first drainage pipe TP1 is the same as the pipe orifice aperture of the drainage network. By ensuring that the flow rate of the secondary diversion trough S2 is less than or equal to the flow rate of the subsequent drainage network, the flow control and discharge of the rain peak diversion device can be achieved.

[0042] like Figure 9As shown, when the rainfall is greater than the upper limit of the drainage network, the rainwater inside the second diversion trough S2 can pass over the second partition B2 and enter the third diversion trough S3, and then flow into the second box body 300 through the second connecting pipe TL2 connected to the third diversion trough S2, thereby receiving rainwater that exceeds the drainage upper limit of the drainage network through the second box body 300, while reflecting the peak control of runoff rainwater, it also achieves the effect of peak elimination of the rainfall process.

[0043] like Figure 10 As shown, when the second box 300 is filled with rainwater, the second drain pipe TP2 is opened to drain water. The discharge object of the second drain pipe TP2 includes at least one or more combinations of natural water bodies, underground recharge facilities and underground storage facilities. Natural water bodies can include rivers, lakes and wetlands, etc., while underground recharge facilities can include infiltration wells, permeable layers or underground reservoirs, etc., and underground storage facilities include distributed reservoirs, sunken green spaces or parks, etc. The discharge object of the second drain pipe TP2 can be selected from at least one or more combinations according to the actual use scenario.

[0044] It is worth noting that the boxes, connecting pipes and drainage pipes in this embodiment are all modular in design. The number and capacity of the boxes can be flexibly adjusted according to parameters such as rainfall frequency and pipe network capacity to adapt to different trends of extreme rainfall frequency. At the same time, the modular design also allows the modules to be constructed in a decentralized manner and then connected on site. It is suitable for a variety of scenarios such as new and old urban areas, industrial areas, etc., with little environmental impact and a wide range of applications. [Second embodiment] The second embodiment of the present invention further provides a method for controlling the rain peak diversion device mentioned in the first embodiment, comprising the following steps: S1: When rainfall begins, rainwater flows into the first diversion groove S1 inside the diversion box 100 through the water inlet cover 101, and then flows into the first box body 200 through the first connecting pipe TL1 connected to the first diversion groove S1; S2: In the middle of rainfall, when the liquid level inside the first diversion trough S1 is higher than the first partition B1, the rainwater inside the first diversion trough S1 can pass through the first partition B1 and enter the second diversion trough S2, and then flow into the drainage network through the first drainage pipe TP1 connected to the second diversion trough S2; S3: When the rainfall exceeds the upper limit of the drainage network, the rainwater in the second diversion trough S2 can pass through the second partition B2 and enter the third diversion trough S3, and then flow into the second box 300 through the second connecting pipe TL2 connected to the third diversion trough S2; S4: When the second tank 300 is filled with rainwater, the second drainage pipe TP2 is opened to drain water outward.

[0045] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A rain peak diversion device, comprising a diversion box (100), wherein rainwater can enter the diversion box (100) through the top, wherein a first side of the diversion box (100) is connected to a first box body (200) via a first connecting pipe (TL1), a second side of the diversion box (100) is connected to a drainage network via a first drainage pipe (TP1), and the other side of the diversion box (100) is connected to a second box body (300) via a second connecting pipe (TL1), and the other side of the second box body (300) is connected to a second drainage pipe (TP2); characterized in that: The diversion box (100) is provided with a first diversion trough (S1) connected to the first connecting pipe (TL1), a second diversion trough (S2) connected to the first drainage pipe (TP1), and a third diversion trough (S3) connected to the second connecting pipe (TL2) respectively. Rainwater entering the diversion box (100) can flow into the first box body (200), the first drainage pipe (TP1), or the second box body (300) respectively according to different rainfall amounts.

2. A rain peak diversion device according to claim 1, characterized in that: The first diversion trough (S1) is arranged at the top of the second diversion trough (S2) and the third diversion trough (S3) and is separated from the second diversion trough (S2) by a first partition (B1); the second diversion trough (S2) and the third diversion trough (S3) are separated by a second partition (B2), and the second partition (B2) is arranged at the bottom of the first diversion trough (S1).

3. The rain peak diversion device according to claim 1, characterized in that: A water inlet cover plate (101) is fixed on the top of the diversion box (100) and above the first diversion slot (S1), and a plurality of water inlets (1011) are provided inside the water inlet cover plate (101).

4. The rain peak diversion device according to claim 3, characterized in that: An inspection cover plate (102) is also provided on the top of the diversion box (100) and on one side of the water inlet cover plate (101).

5. The rain peak diversion device according to claim 1, characterized in that: The orifice diameter of the first drainage pipe (TP1) is the same as the orifice diameter of the drainage pipe network.

6. The rain peak diversion device according to claim 2, characterized in that: Rainwater can flow into the first diversion groove (S1) inside the diversion box (100) through the water inlet cover (101), and then flow into the interior of the first box body (200) through the first connecting pipe (TL1) connected to the first diversion groove (S1).

7. The rain peak diversion device according to claim 6, characterized in that: When the liquid level inside the first diversion trough (S1) is higher than the first baffle (B1), rainwater inside the first diversion trough (S1) can pass through the first baffle (B1) and enter the second diversion trough (S2), and then flow into the drainage network through the first drainage pipe (TP1) connected to the second diversion trough (S2).

8. The rain peak diversion device according to claim 7, characterized in that: When the rainfall exceeds the upper limit of the drainage network, rainwater in the second diversion trough (S2) can pass over the second partition (B2) and enter the third diversion trough (S3), and then flow into the interior of the second box (300) through the second connecting pipe (TL2) connected to the third diversion trough (S2).

9. The rain peak diversion device according to claim 8, characterized in that: When the second box (300) is filled with rainwater, the second drainage pipe (TP2) is opened to drain water, and the discharge object of the second drainage pipe (TP2) includes at least one or more combinations of natural water bodies, underground recharge facilities and underground storage facilities.

10. A method for controlling a rain peak diversion device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: When rainfall begins, rainwater flows into the first diversion groove (S1) inside the diversion box (100) through the water inlet cover (101), and then flows into the interior of the first box body (200) through the first connecting pipe (TL1) connected to the first diversion groove (S1); S2: In the middle of rainfall, when the liquid level inside the first diversion trough (S1) is higher than the first baffle (B1), the rainwater inside the first diversion trough (S1) can pass through the first baffle (B1) into the second diversion trough (S2), and then flow into the drainage network through the first drainage pipe (TP1) connected to the second diversion trough (S2); S3: When the rainfall exceeds the upper limit of the drainage network, rainwater in the second diversion trough (S2) can pass through the second partition (B2) and enter the third diversion trough (S3), and then flow into the interior of the second box (300) through the second connecting pipe (TL2) connected to the third diversion trough (S2); S4: When the second tank (300) is filled with rainwater, the second drainage pipe (TP2) is opened to drain the water outward.

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