Rain sewage intelligent switching system

Abstract

An intelligent rainwater and sewage switching system comprises a rainwater and sewage mixing well, a sewage inlet pipe and a rainwater inlet pipe are installed on one side of the rainwater and sewage mixing well and arranged side by side, and opening and closing devices are arranged at pipe openings of the sewage inlet pipe and the rainwater inlet pipe. A rainwater and sewage discharge pipe and a rainwater discharge pipe are installed on the other side of the rainwater and sewage mixing well and arranged side by side or side by side, opening and closing devices are also arranged at pipe openings of the rainwater and sewage discharge pipe and the rainwater discharge pipe, and the sewage inlet pipe is connected with the side face of the rainwater and sewage discharge pipe through a bypass pipe. According to the system, the defects of rain and sewage confluence and diversion are overcome, particularly the problem of pollution of initial rainwater of a rain and sewage diversion pipe network to river water is solved, meanwhile, the problem of treatment of rainwater in the middle and later periods of a confluence pipe network is solved, the pressure of a sewage treatment plant is reduced, the treatment cost of the sewage treatment plant is reduced, and the construction cost of an urban pipe network is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of rain and sewage treatment, and specifically refers to a rain and sewage intelligent switching system. Background Art

[0002] At present, urban rainwater and sewage adopt combined sewer systems or separate sewer systems. The combined sewer system reduces the investment in urban sewer network construction, but increases the pressure on urban sewage treatment plants and the investment and operating costs of sewage treatment facilities; although the separate sewer system reduces the pressure on urban sewage treatment plants, the investment in sewer network construction is large, and the initial rainwater contains a large amount of sediment and debris, which pollutes the river after flowing into the water body. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a rain and sewage intelligent switching system in view of the above-mentioned deficiencies of the prior art. To solve the above technical problem, the technical solution adopted by the present invention is:

[0004] A rain and sewage intelligent switching system includes a rain and sewage mixing well. A sewage inlet pipe and a rainwater inlet pipe are installed on one side of the rain and sewage mixing well. The sewage inlet pipe and the rainwater inlet pipe are arranged side by side or in parallel. Opening and closing devices are provided at the pipe orifices of the sewage inlet pipe and the rainwater inlet pipe. A rain and sewage discharge pipe and a rainwater discharge pipe are installed on the other side of the rain and sewage mixing well. The rain and sewage discharge pipe and the rainwater discharge pipe are arranged side by side or in parallel. Opening and closing devices are also provided at the pipe orifices of the rain and sewage discharge pipe and the rainwater discharge pipe. The side surfaces of the sewage inlet pipe and the rain and sewage discharge pipe are connected by a bypass pipe.

[0005] Further, the opening and closing device adopts a gate.

[0006] Further, the gate includes a gate panel, a door frame, and a hoist. The hoist is installed at the wellhead of the rain and sewage mixing well. A screw rod passes through the middle of the hoist. The door frame is installed at the pipe orifice. Guide rails are installed on both sides of the door frame. The gate panel slides between the guide rails. The upper end of the gate panel is connected to the bottom of the screw rod. A wedge seat is installed on the guide rail. An upper wedge block is installed at the bottom of the wedge seat. A lower wedge block is installed on the side surface of the gate panel. A sealing strip is installed on the side surface of the door frame.

[0007] Further, the opening and closing device adopts an electric control valve.

[0008] Further, a valve well is connected to the side surface of the rain and sewage mixing well, and the electric control valve is arranged in the valve well.

[0009] Further, a bypass pipe control valve is installed on the bypass pipe. A bypass pipe valve well is connected to one side of the rain and sewage mixing well, and the bypass pipe control valve is arranged in the bypass pipe valve well.

[0010] Compared with the prior art, a rain and sewage intelligent switching system of the present invention solves the drawbacks of rain and sewage combined drainage and separate drainage, especially the pollution problem of the initial rainwater in the rain and sewage separate drainage pipe network to the river water body. The initial rainwater containing sediment and debris is connected to the sewage pipe network, and through corresponding switching means, the collection and treatment of the initial rainwater are realized. At the same time, the problem of treating the later rainwater in the combined drainage pipe network is solved. The middle and later rainwater with less sediment and debris content is directly discharged into the river through separate drainage to reduce the pressure on the sewage treatment plant, reduce the treatment cost of the sewage treatment plant, and reduce the urban pipe network construction cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic structural diagram of Embodiment 1;

[0012] Figure 2 is a schematic structural diagram of the gate installation in Embodiment 1;

[0013] Figure 3 is a schematic structural diagram of the connection between the door panel and the guide rail in Embodiment 1;

[0014] Figure 4 is Figure 3 a cross-sectional view taken along line A-A in

[0015] Figure 5 is Figure 3 a cross-sectional view taken along line B-B in

[0016] Figure 6 is Figure 3 a cross-sectional view taken along line C-C in

[0017] Figure 7 is a schematic structural diagram of Embodiment 2;

[0018] Figure 8 is a schematic structural diagram of Embodiment 3;

[0019] Figure 9 is a schematic structural diagram of the connection between the sewage inlet pipe and the rain and sewage discharge pipe;

[0020] Among them, 1. rain and sewage mixing well, 2. sewage inlet pipe, 3. rainwater inlet pipe, 4. rain and sewage discharge pipe, 5. rainwater discharge pipe, 6. bypass pipe, 7. bypass pipe control valve, 8. bypass pipe valve well, 9. gate, 10. electric control valve, 11. valve well, 911. door panel, 912. door frame, 913. hoist, 914. screw rod, 915. guide rail, 916. guide groove, 917. guiding edge, 918. pin shaft, 919. wedge seat, 920. upper wedge block, 921. lower wedge block, 922. sealing strip. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below.

[0022] As Figures 1 to 9 shown, a smart rain and sewage switching system includes a rain and sewage mixing well 1. On one side of the rain and sewage mixing well 1, a sewage inlet pipe 2 and a rainwater inlet pipe 3 are installed. The sewage inlet pipe 2 and the rainwater inlet pipe 3 are arranged side by side or in parallel. At the pipe orifices of the sewage inlet pipe 2 and the rainwater inlet pipe 3, a switching device is provided. On the other side of the rain and sewage mixing well 1, a rain and sewage discharge pipe 4 and a rainwater discharge pipe 5 are installed. The rain and sewage discharge pipe 4 and the rainwater discharge pipe 5 are arranged side by side or in parallel. At the pipe orifices of the rain and sewage discharge pipe 4 and the rainwater discharge pipe 5, a switching device is also provided. The sides of the sewage inlet pipe 2 and the rain and sewage discharge pipe 4 are connected by a bypass pipe 6. A bypass pipe control valve 7 is installed on the bypass pipe 6. One side of the rain and sewage mixing well 1 is connected to a bypass pipe valve well 8. The bypass pipe control valve 7 is arranged in the bypass pipe valve well 8.

[0023] In the present invention, the switching device controls the switching at the pipe orifice. In the initial stage of heavy rain, the urban pipe network has a large flow rate and contains a large amount of sediment and debris. The switching devices at the pipe orifices of the sewage inlet pipe 2, the rainwater inlet pipe 3, and the rain and sewage discharge pipe 4 are opened, and the switching device at the pipe orifice of the rainwater discharge pipe 5 is closed. Sewage and rainwater mixed with sediment and debris enter the sewage treatment plant through the rain and sewage discharge pipe 4. After a period of time, the rain weakens and the debris significantly decreases. The switching devices at the pipe orifices of the sewage inlet pipe 2 and the rain and sewage discharge pipe 4 are closed, and the bypass pipe control valve 7 is opened. Sewage enters the rain and sewage discharge pipe 4 through the bypass pipe 6. The switching devices at the pipe orifices of the rainwater inlet pipe 3 and the rainwater discharge pipe 5 are opened, and the middle and late stage rainwater containing sediment and less debris is discharged into the river through the rainwater discharge pipe 5 to reduce the pressure on the sewage treatment plant.

[0024] Embodiment 1

[0025] As Figures 1 to 6As shown in the figure, in this embodiment, the sewage inlet pipe 2 and the rainwater inlet pipe 3 are arranged side by side vertically, the rain-sewage discharge pipe 4 and the rainwater discharge pipe 5 are arranged side by side vertically, and the opening and closing device adopts a gate 9. The gate 9 includes a door panel 911, a door frame 912 and a hoist 913. The hoist 913 is installed at the wellhead of the rain-sewage mixing well 1. A screw rod 914 passes through the middle of the hoist 913, and the hoist 913 controls the up and down movement of the screw rod. The door frame 912 is installed at each pipe orifice, and a guide rail 915 is installed on each side of the door frame 912. The door panel 911 slides between the guide rails 915. The upper end of the door panel 911 is connected to the bottom of the screw rod 914. Among them, a guide groove 916 is machined on the side of the guide rail, and a guiding edge 917 is machined on the side of the door panel 911. The guiding edge 917 slides in the guide groove 916. A connecting seat is machined at the upper end of the door panel 911, and a pin shaft 918 passes through the connecting seat. The bottom of the screw rod 914 is connected to the pin shaft 918, and a split pin is arranged on the side of the pin shaft 918. A wedge seat 919 is installed on the door frame 912 where the guide rail 915 is located, an upper wedge block 920 is installed at the bottom of the wedge seat 919, and a lower wedge block 921 is installed on the side of the door panel 911. A sealing strip 922 is installed on the side of the door frame 912. When the door panel 911 closes the pipe orifice, the upper wedge block 920 on the wedge seat 919 cooperates with the wedge surface of the lower wedge block 921, and the door panel 911 presses the sealing strip 922 to seal the pipe orifice.

[0026] In this embodiment, the hoist 913 controls the opening and closing of the door panel 911 for the pipe orifice. In the initial stage of heavy rain, the hoist 913 controls the door panel 911 to open the orifices of the sewage inlet pipe 2, the rainwater inlet pipe 3 and the rain-sewage discharge pipe 4, and closes the rainwater discharge pipe 5, so as to enable sewage and rainwater to enter the rain-sewage discharge pipe 4. In the later stage of heavy rain, the hoist 913 controls the door panel 911 to close the orifices of the sewage inlet pipe 2 and the rain-sewage discharge pipe 4, and opens the rainwater inlet pipe 3 and the rainwater discharge pipe 5 to discharge the rainwater into the river.

[0027] Embodiment 2

[0028] As Figure 7 shown in the figure, in this embodiment, the sewage inlet pipe 2 and the rainwater inlet pipe 3 are arranged side by side vertically, the rain-sewage discharge pipe 4 and the rainwater discharge pipe 5 are arranged side by side vertically, and the opening and closing device adopts an electric control valve 10. The electric control valve 10 is installed on each pipe orifice. A valve well 11 is connected to the side of the rain-sewage mixing well 1, and the electric control valve 10 is arranged in the valve well 11 to control the opening or closing of each pipe orifice.

[0029] Embodiment 3

[0030] As Figure 8As shown, in this embodiment, the sewage inlet pipe 2 and the rainwater inlet pipe 3 are arranged side by side left and right, the rain and sewage discharge pipe 4 and the rainwater discharge pipe 5 are arranged side by side left and right, and the opening and closing device also adopts an electric control valve 10, which is installed on each pipe orifice. A valve well 11 is connected to the side of the rain and sewage mixing well 1, and the electric control valve 10 is arranged in the valve well 11, and the opening or closing of each pipe orifice is controlled by the electric control valve 10.

[0031] The present invention is not limited to the described embodiments. Those skilled in the art can still make some modifications or changes without departing from the spirit of the present invention, that is, within the scope of disclosure. Therefore, the scope of the right protection of the present invention shall be subject to the scope defined by the claims.

Claims

1. A rain and sewage intelligent switching system, characterized in that: It includes a rain and sewage mixing well. A sewage inlet pipe and a rainwater inlet pipe are installed on one side of the rain and sewage mixing well. The sewage inlet pipe and the rainwater inlet pipe are arranged side by side or in parallel. A cut-off device is provided at the pipe orifice of the sewage inlet pipe and the rainwater inlet pipe. A rain and sewage discharge pipe and a rainwater discharge pipe are installed on the other side of the rain and sewage mixing well. The rain and sewage discharge pipe and the rainwater discharge pipe are arranged side by side or in parallel. A cut-off device is also provided at the pipe orifice of the rain and sewage discharge pipe and the rainwater discharge pipe. The side of the sewage inlet pipe and the rain and sewage discharge pipe is connected by a bypass pipe.

2. The intelligent switching system for rainwater and sewage according to claim 1, characterized in that: The cut-off device uses a gate.

3. The intelligent rain and sewage switching system according to claim 2, characterized in that: The gate includes a door panel, a door frame and a hoist. The hoist is installed at the wellhead of the rain and sewage mixing well. A screw rod passes through the middle of the hoist. The door frame is installed at the pipe orifice. Guide rails are installed on both sides of the door frame. The door panel slides between the guide rails. The upper end of the door panel is connected to the bottom of the screw rod. A wedge seat is installed on the guide rail. An upper wedge block is installed at the bottom of the wedge seat. A lower wedge block is installed on the side of the door panel. A sealing strip is installed on the side of the door frame.

4. A rain and sewage intelligent switching system according to claim 1, characterized in that: The cut-off device uses an electric control valve.

5. The intelligent rain and sewage switching system according to claim 4, wherein: A valve well is connected to the side of the rain and sewage mixing well. The electric control valve is arranged in the valve well.

6. The intelligent rain and sewage switching system according to claim 1, characterized in that: A bypass pipe control valve is installed on the bypass pipe. A bypass pipe valve well is connected to one side of the rain and sewage mixing well. The bypass pipe control valve is arranged in the bypass pipe valve well.

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