Intelligent initial rainwater diversion device

Abstract

The utility model discloses an intelligent flow dividing device for initial rainwater. A large number of high-concentration pollutants are contained in the process that initial rainwater forms surface runoff and is collected to a rainwater pipe network. According to the utility model, a rainwater diversion mud well is connected with a sewage inspection well through a sewage diversion pipe; the rainwater inlet pipe and the sewage diversion pipe are located on the same side of the baffle overflow weir, and the rainwater outlet pipe is located on the other side of the baffle overflow weir. A sewage electromagnetic valve is arranged on the sewage diversion pipe, water quality on-line monitoring equipment is arranged on the rainwater inlet pipe, the water quality on-line monitoring equipment is connected with the equipment control cabinet, the water quality on-line monitoring equipment synchronously controls a rainfall sensor, and the rainfall sensor is connected with the sewage electromagnetic valve. According to the water function division executed by the receiving water body, the water quality index concentration can be determined according to the water function category finally discharged to the receiving water body by the rainwater pipe network, the part, with the water quality exceeding the standard, of initial rainwater is discharged into the sewage pipe network, and the part, with the water quality reaching the standard, of initial rainwater is discharged into the rainwater pipe network.

Description

Technical Field

[0001] The utility model belongs to the technical field of municipal road drainage pipes, and in particular relates to an initial rainwater intelligent diversion device. Background Art

[0002] In recent years, with the expansion of urbanization, intensive human activities, a sharp increase in the number of cars, and increased industrial production, the types and quantities of air and road pollutants have increased dramatically. During rainfall, the rainfall washes the atmosphere and forms surface runoff, which will wash the roads. As the initial rainwater forms surface runoff and converges into the rainwater pipe network, it will contain a large amount of high-concentration pollutants. As the rainfall process progresses, the concentration of pollutants gradually decreases. If the initial rainfall is directly discharged into the receiving water body, it will cause serious water pollution and destroy the water body's self-purification capacity and ecological balance.

[0003] In view of the current problems of excessive water quality and water pollution in initial rainwater, initial rainwater diversion has become the focus of current research. The existing initial rainwater diversion device uses the liquid level changes between the rectangular well, the discard pool and the clean rainwater recovery pool to achieve initial rainwater discard, and cannot accurately divert according to the water function category of the receiving water body that the rainwater pipe network finally discharges to. Therefore, a preliminary rainwater diversion device that can achieve intelligent diversion is needed. Utility Model Content

[0004] In order to make up for the shortcomings of the prior art, the utility model provides an initial rainwater intelligent diversion device, which can determine the water quality index concentration according to the water function category of the receiving water body finally discharged to the rainwater pipe network. If the rainwater water quality index concentration exceeds the receiving water body water quality index concentration, it will be discharged into the municipal sewage pipe network; if the rainwater water quality index concentration is less than the receiving water body index water quality concentration, it will be discharged into the rainwater downstream pipe network.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] An initial rainwater intelligent diversion device, characterized in that: it comprises a rainwater diversion sedimentation well, wherein a baffle overflow weir is arranged in the rainwater diversion sedimentation well;

[0007] The rainwater diversion sedimentation well is provided with a rainwater inlet pipe, a rainwater outlet pipe and a sewage diversion pipe;

[0008] The rainwater diversion sedimentation well and the sewage inspection well are connected by a sewage diversion pipe;

[0009] The rainwater inlet pipe and the sewage diversion pipe are located on the same side of the baffle overflow weir, and the rainwater outlet pipe is located on the other side of the baffle overflow weir;

[0010] The sewage diversion pipe is provided with a sewage solenoid valve, and the rainwater inlet pipe is provided with an online water quality monitoring device, which is connected to the equipment control cabinet. The online water quality monitoring device synchronously controls the rainfall sensor, and the rainfall sensor is connected to the sewage solenoid valve.

[0011] Furthermore, the initial rainwater intelligent diversion device is arranged in the middle and downstream of the rainwater pipe network.

[0012] Furthermore, the rainwater inlet pipe, rainwater outlet pipe and sewage diversion pipe are arranged on the bottom side wall of the rainwater diversion sedimentation pit.

[0013] Furthermore, a rainwater diversion sludge well cover is provided on the top of the rainwater diversion sludge well.

[0014] Furthermore, a basket grille is provided outside the sewage diversion pipe.

[0015] Furthermore, the upper limit control concentration of the water quality online monitoring equipment is determined according to the water function category of the receiving water body that is ultimately discharged to the rainwater pipe network.

[0016] Beneficial effects of the utility model:

[0017] 1) The utility model can determine the water quality index concentration according to the water function zoning implemented by the receiving water body and the water function category of the receiving water body finally discharged to the receiving water body by the rainwater pipe network. The part of the initial rainwater that exceeds the standard is discharged into the sewage pipe network, and the part that meets the standard is discharged into the rainwater pipe network, thus realizing the intelligent diversion of the initial rainwater;

[0018] 2) The initial rainwater intelligent diversion device of the utility model has a simple structure, occupies a small area, and operates automatically in a cycle, thereby reducing the cost of subsequent rainwater resource utilization and reducing non-point source pollution of receiving water bodies;

[0019] 3) The utility model can realize online monitoring of initial rainwater, electrically control the opening and closing of valves, and reduce the frequency of manual maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a vertical cross-sectional view of the utility model;

[0021] Figure 2 This is a top sectional view of the utility model;

[0022] In the figure, 1-rainwater inlet pipe, 2-water quality online monitoring equipment, 3-rainwater outlet pipe, 4-sewage diversion pipe, 5-sewage solenoid valve, 6-equipment control cabinet, 7-rainwater diversion sedimentation well, 8-baffle overflow weir, 9-rainwater diversion sedimentation well cover, 10-basket grille, 11-rainfall sensor. DETAILED DESCRIPTION

[0023] The present invention is described in detail below in conjunction with specific implementation methods.

[0024] The overall structure of the rainwater intelligent diversion device of the utility model is as follows Figure 1 , 2 As shown, the initial rainwater intelligent diversion device is set in the middle and downstream of the rainwater pipe network;

[0025] It includes a rainwater diversion sedimentation well 7, in which a baffle overflow weir 8 is arranged; a rainwater diversion sedimentation well cover 9 is arranged on the top of the rainwater diversion sedimentation well 7. The well wall and well shaft of the rainwater diversion sedimentation well 7 are reinforced concrete structures, and the rainwater diversion sedimentation well cover 9 is a ductile iron well cover.

[0026] A rainwater inlet pipe 1, a rainwater outlet pipe 3 and a sewage diversion pipe 4 are arranged on the rainwater diversion silt pit 7; the rainwater inlet pipe 1 and the sewage diversion pipe 4 are located on the same side of the baffle overflow weir 8, and the rainwater outlet pipe 3 is located on the other side of the baffle overflow weir 8; the rainwater inlet pipe 1, the rainwater outlet pipe 3 and the sewage diversion pipe 4 are arranged on the bottom side wall of the rainwater diversion silt pit 7.

[0027] The rainwater diversion sedimentation well 7 is connected to the sewage inspection well through a sewage diversion pipe 4. A basket grille 10 is arranged outside the sewage diversion pipe 4 to intercept the suspended matter in the initial rainwater.

[0028] A sewage solenoid valve 5 is provided on the sewage diversion pipe 4, and a water quality online monitoring device 2 is provided on the rainwater inlet pipe 1. The water quality online monitoring device 2 is connected to the equipment control cabinet 6. The water quality online monitoring device 2 synchronously controls the rainfall sensor 11, and the rainfall sensor 11 is connected to the sewage solenoid valve 5; the upper limit control concentration of the water quality online monitoring device 2 is determined according to the water function category of the receiving water body finally discharged to the rainwater pipe network.

[0029] The water quality online monitoring device 2 uses a multi-parameter online monitor, which is an instrument that can continuously detect various water quality indicators and connect multiple parameter sensors to run measurements simultaneously. It is used to quickly and accurately measure multiple physical and chemical indicators in water bodies, such as dissolved oxygen, pH value, conductivity, turbidity, chemical oxygen demand (COD), ammonia nitrogen, total phosphorus, total nitrogen, heavy metal ions, etc. This time, a small, portable wall-mounted design is adopted. It is light in weight and small in size, and can realize real-time monitoring of water quality in a limited space. The instrument usually uses multiple detection technologies such as optics, electrochemistry, colorimetry, and spectral analysis, which can realize comprehensive evaluation and real-time monitoring of water pollution conditions.

[0030] The operation method of the initial rainwater intelligent diversion device of the utility model specifically comprises the following steps:

[0031] Step 1: Determine the concentration of water quality indicators according to the water function category of the receiving water body that the rainwater pipe network finally discharges to, and input the upper limit control concentration of indicators such as COD, SS, TN, and TP into the water quality online monitoring equipment;

[0032] Step 2: Rainfall forms runoff, and the rain sensor 11 starts working; the rain washes the road, containing a large amount of high-concentration pollutants, which are collected by the rainwater pipe network to the rainwater diversion sedimentation well 7, and the water quality online monitoring device 2 automatically senses the water flow and monitors the rainwater quality indicators synchronously;

[0033] Step 3: The rainfall sensor synchronizes with the online water quality monitoring device 2. When the online water quality monitoring device detects that the water quality exceeds the standard, it transmits a signal to the rainfall sensor. When it receives a "yes" signal, the sewage solenoid valve opens, and the initial rainwater is discharged into the sewage network. When the online water quality monitoring device detects that the water quality indicators are normal, it transmits a signal to the rainfall sensor. When it receives a "no" signal, the sewage solenoid valve closes, and the initial rainwater overflows and is discharged into the rainwater network.

[0034] The intelligent diversion device of the utility model is a rainwater and sewage diversion sludge well designed based on the excessive concentration of pollutants in the initial rainwater, which realizes online monitoring and intelligent diversion of the initial rainwater; it operates automatically in cycles, reduces the cost of subsequent rainwater resource utilization, and reduces non-point source pollution of the receiving water body. The size specifications of the intelligent diversion sludge well are determined according to the diameter of the rainwater and sewage pipe network.

[0035] In the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", and "fix" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] The content of the utility model is not limited to the examples listed, and any equivalent changes made to the technical solution of the utility model by ordinary technicians in this field after reading the specification of the utility model are covered by the claims of the utility model.

Claims

1. An initial rainwater intelligent diversion device, characterized in that: It comprises a rainwater diversion sedimentation well (7), wherein a baffle overflow weir (8) is arranged inside the rainwater diversion sedimentation well (7); The rainwater diversion sedimentation well (7) is provided with a rainwater inlet pipe (1), a rainwater outlet pipe (3) and a sewage diversion pipe (4); The rainwater diversion sedimentation well (7) is connected to the sewage inspection well via a sewage diversion pipe (4); The rainwater inlet pipe (1) and the sewage diversion pipe (4) are located on the same side of the baffle overflow weir (8), and the rainwater outlet pipe (3) is located on the other side of the baffle overflow weir (8); The sewage diversion pipe (4) is provided with a sewage solenoid valve (5), and the rainwater inlet pipe (1) is provided with an online water quality monitoring device (2). The online water quality monitoring device (2) is connected to an equipment control cabinet (6). The online water quality monitoring device (2) synchronously controls a rainfall sensor (11), and the rainfall sensor (11) is connected to the sewage solenoid valve (5).

2. The initial rainwater intelligent diversion device according to claim 1 is characterized in that: The initial rainwater intelligent diversion device is arranged in the middle and downstream of the rainwater pipe network.

3. The initial rainwater intelligent diversion device according to claim 1 is characterized in that: The rainwater inlet pipe (1), the rainwater outlet pipe (3) and the sewage diversion pipe (4) are arranged on the bottom side wall of the rainwater diversion sedimentation well (7).

4. The initial rainwater intelligent diversion device according to claim 3 is characterized in that: A rainwater diversion silt well cover plate (9) is arranged on the top of the rainwater diversion silt well (7).

5. The initial rainwater intelligent diversion device according to claim 4 is characterized in that: A basket grille (10) is arranged outside the sewage diversion pipe (4).

6. The initial rainwater intelligent diversion device according to claim 5, characterized in that: The upper limit control concentration of the water quality online monitoring device (2) is determined according to the water function category of the receiving water body that is ultimately discharged to the rainwater pipe network.

Images