Rain and sewage diversion integrated drainage ditch

Abstract

The utility model discloses a rain and sewage diversion integrated drainage ditch which comprises a main drainage well, an inlet is formed in the upper portion of the main drainage well, a lifting table is installed in the main drainage well, the bottom of the lifting table is connected with a waterproof lifting air cylinder, and a diversion well is installed on the front side of the main drainage well. Flanges on the left side and the right side of the main drainage well are connected with flow dividing pipes, and a lower drainage pipe is installed at the lower end of the main drainage well. In the initial stage of rainfall, rainwater is discharged into the diversion well from the filter port through the flap valve and is filtered by the filter screen at the bottom of the diversion well, so that the rainwater is further filtered, and after the rainfall capacity is increased, the rainwater cannot be the clarity, the rainfall capacity and the turbidity of the rainwater in the initial stage of rainfall, and the rainwater is changed into rainwater and sewage mixed flowing water at the moment; the flap valve is closed, the lifting platform is lowered, the bottom space of the main drainage well is opened, and rain and sewage mixed water enters the lower drainage channel from the flow dividing pipe.

Description

A type of integrated rainwater and sewage separation drainage ditch Technical Field

[0001] This utility model relates to the field of rainwater and sewage drainage technology, specifically a rainwater and sewage separation integrated drainage ditch. Background Technology

[0002] Currently, traditional drainage systems mostly use combined sewer systems or separate pipe systems for rainwater and sewage, which have problems such as large footprint, high cost, low separation efficiency, and susceptibility to clogging and overflow. Existing technologies have simple layered drainage structures, but lack comprehensive optimization solutions for efficient separation of rainwater and sewage, backflow prevention, and ease of maintenance.

[0003] A rainwater and sewage separation device is disclosed in CN215330325U, comprising a rainwater and sewage separation box and an inlet pipe, a rainwater pipe, and a sewage pipe connected to the separation box. The separation box has a sewage chamber and a rainwater chamber, with the bottom wall of the rainwater chamber higher than the bottom wall of the sewage chamber. The bottom wall of the sewage chamber has a first inclined surface connecting to the bottom wall of the rainwater chamber. A first filter screen is provided between the rainwater chamber and the sewage chamber. The inlet pipe and the sewage pipe are respectively connected to the sewage chamber, and the rainwater pipe is connected to the rainwater chamber. The inlet of the sewage pipe is lower than the inlet of the rainwater pipe, and the outlet of the inlet pipe is higher than the bottom wall of the rainwater chamber. By setting the bottom wall of the rainwater chamber higher than the bottom wall of the sewage chamber, and providing a filter screen between the rainwater chamber and the sewage chamber, when a large amount of rainwater and sewage flows into the separation box, the sewage chamber cannot be discharged in time. Instead, the water flows through the filter screen and out of the rainwater chamber through the rainwater pipe, achieving the purpose of rainwater and sewage separation. This also further ensures the quality of rainwater and reduces environmental pollution.

[0004] When rainwater enters the drainage system, it carries sewage, causing mixed rainwater and sewage to be discharged together. When the rainfall volume is large, the turbidity of the rainwater will increase significantly. Existing rainwater drainage structures use filtration structures to filter rainwater and separate rainwater and sewage. However, when the rainfall volume is large, the filtration structure will actually impede the flow of water, causing backflow and blockage. The rainwater drainage ditch lacks an independent diversion structure, so separation can only be achieved through filtration structures. The pipes after diversion remain interconnected, lacking independence, and the mixed rainwater and sewage situation has not been well improved.

[0005] Therefore, those skilled in the art have provided an integrated rainwater and sewage separation drainage ditch to solve the problems mentioned in the background art. Summary of the Invention

[0006] The purpose of this utility model is to provide an integrated rainwater and sewage separation drainage ditch to solve the problem mentioned in the background art that existing integrated rainwater and sewage separation drainage ditches lack independent pipes for mutual isolation during drainage.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A combined rainwater and sewage separation drainage ditch includes: a main drainage well with an inlet at its top; a lifting platform installed inside the main drainage well, with a waterproof lifting cylinder connected to the bottom of the lifting platform; a diversion well installed at the front of the main drainage well; diversion pipes connected to flanges on the left and right sides of the main drainage well; a lower drainage channel installed at the lower end of the main drainage well; an inclined flow pipe connected to the lower end of the diversion pipe; an overflow prevention valve installed on the surface of the inclined flow pipe; and an upper drainage channel connected to the bottom of the diversion well.

[0009] As a further embodiment of this utility model: the diversion pipe and the inclined pipe are interconnected, and the main drainage well is interconnected with the down-drainage channel through the diversion pipe and the inclined pipe.

[0010] As a further improvement of this utility model: a filter bucket is installed between the lower end of the diversion well and the upper drainage channel, and an inclined plate is installed at the inner bottom of the upper drainage channel.

[0011] As a further embodiment of this utility model: the lower end of the diversion well is connected to the upper drainage channel, a filter inlet is installed between the main drainage well and the diversion well, and a flap valve is installed inside the filter inlet.

[0012] As a further improvement of this invention: a ball cavity is installed at the bottom of the inlet, and a liquid level sensor is installed on the inner wall of the ball cavity.

[0013] As a further improvement of this utility model: a flow divider hole is fixedly opened on the lower edge surface of the ball cavity, and a spiral flow divider is installed below the ball cavity.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] The bottom of the main drainage well is connected to the downpipe. A diversion well is installed on one side of the main drainage well. Inside the main drainage well is a lifting platform, which is raised and lowered using a waterproof lifting cylinder. When the platform is raised, it blocks the diversion pipe below the main drainage well. At the beginning of rainfall, rainwater flows through a flap valve into the diversion well via a filter, where it is filtered by a filter screen at the bottom of the diversion well. However, as rainfall increases, the rainwater loses its initial clarity and becomes more turbid. The water has become a mixed stormwater and sewage flow. Close the flap valve, lower the lifting platform, and open the bottom space of the main drainage well. The mixed stormwater and sewage flow into the lower drainage channel through the diversion pipe. In this way, the upper and lower drainage channels are used to separate the rainwater at the beginning of the rainfall and the rainwater and sewage after the rainfall increases. The upper and lower drainage channels are set up independently and isolated from each other. During the drainage process, rainwater and sewage will not enter the upper drainage channel. Rainwater and sewage will only be discharged from the lower drainage channel, realizing the separation of rainwater and sewage and avoiding the mixed flow of rainwater and sewage in the same pipe. Attached Figure Description

[0016] Figure 1 is a schematic diagram of a rainwater and sewage separation integrated drainage ditch.

[0017] Figure 2 is a schematic diagram of the inlet structure of an integrated rainwater and sewage separation drainage ditch.

[0018] Figure 3 is a schematic diagram of the main drainage well in an integrated rainwater and sewage separation drainage ditch.

[0019] Figure 4 is a schematic diagram of the upper drainage channel in an integrated rainwater and sewage separation drainage ditch.

[0020] Figure 5 is a schematic diagram of the lifting platform in the main drainage well of an integrated rainwater and sewage separation drainage ditch.

[0021] Figure 6 is a schematic diagram of the internal structure of the main drainage well in an integrated rainwater and sewage separation drainage ditch.

[0022] In the diagram: 1. Main drainage well; 2. Inlet; 201. Ball cavity; 202. Liquid level sensor; 203. Diverter orifice; 204. Spiral diverter plate; 3. Diverter pipe; 4. Inclined flow pipe; 5. Anti-overflow valve; 6. Diverter well; 7. Upper drainage channel; 8. Lower drainage channel; 9. Flip valve; 10. Inclined plate; 11. Waterproof lifting cylinder; 12. Lifting platform; 13. Filter inlet; 14. Filter hopper. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please refer to Figures 1 to 6. This embodiment of the utility model provides an integrated rainwater and sewage separation drainage ditch, including: a main drainage well 1, an inlet 2 at the top of the main drainage well 1, a lifting platform 12 installed inside the main drainage well 1, and a waterproof lifting cylinder 11 connected to the bottom of the lifting platform 12; a diversion hole 203 fixedly opened on the lower edge surface of the ball cavity 201, and a spiral diversion plate 204 installed below the ball cavity 201; a diversion well 6 installed on the front side of the main drainage well 1; diversion pipes 3 connected to the flanges on the left and right sides of the main drainage well 1; and a lower drainage channel 8 installed at the lower end of the main drainage well 1. The lower end of the diversion pipe 3 is inclined to be connected to the inclined pipe 4. An anti-overflow valve 5 is installed on the surface of the inclined pipe 4. The bottom of the diversion well 6 is connected to the upper drainage channel 7. A filter hopper 14 is installed between the lower end of the diversion well 6 and the upper drainage channel 7. An inclined plate 10 is installed at the bottom of the upper drainage channel 7. The lower end of the diversion well 6 and the upper drainage channel 7 are interconnected. A filter inlet 13 is installed between the main drainage well 1 and the diversion well 6. A flap valve 9 is installed inside the filter inlet 13. A ball cavity 201 is installed at the bottom of the inlet 2. A liquid level sensor 202 is installed on the inner wall of the ball cavity 201.

[0025] Specifically, rainwater enters the spherical cavity 201 through inlet 2. When rainfall is light, the rainwater flows directly into the spiral diverter 204 through the diversion hole 203 at the bottom of the spherical cavity 201. The spiral diverter 204 guides the rainwater in a spiral manner, making the rainwater flow smoother. When the rainfall is heavy, the depth of the rainwater in the spherical cavity 201 increases. The liquid level sensor 202 senses the liquid level and adjusts the lifting platform 12 inside the main drainage well 1 accordingly. The liquid level sensor 202 monitors the water level in real time. When the liquid level rises to a preset height (one-third of the height of the spherical cavity 201 from top to bottom), it outputs an electrical signal. After receiving the signal, the controller adjusts the flow according to the preset height. Assume the logic sends an energizing command to the solenoid valve, the cylinder extends, and after the water level drops, the sensor signal disappears. The controller switches the solenoid valve state, and the cylinder retracts back to its original position. The triggering principle of the liquid level sensor is disclosed in the existing announcement number CN207242578U. The hydraulic sensor 201 is an existing mature technology. When the rainfall is small, the lifting platform 12 rises to below the filter inlet 13, restricting half of the space inside the main drainage well 1. The rainwater with small rainfall flows from the filter inlet 13 into the diversion well 6. The diversion well 6 is equipped with a flap valve 9 to facilitate the opening and closing of the filter inlet 13. The diversion well is used to introduce rainwater into the upper drainage channel 7, and the upper drainage channel 7 is used to drain the relatively clean rainwater.

[0026] The diversion pipe 3 and the inclined pipe 4 are interconnected, and the main drainage well 1 is interconnected with the lower drainage channel 8 through the diversion pipe 3 and the inclined pipe 4.

[0027] Specifically, a lifting platform 12 is installed inside the main drainage well 1, and a waterproof lifting cylinder 11 is installed at the bottom of the lifting platform 12. The waterproof lifting cylinder 11 is model MDBL40-500-Z73. When the rainfall is low, the pollution level in the rainwater is light, and it can be discharged through the upper drainage channel. The lifting platform 12 is located below the filter inlet 13 and blocks the lower diversion pipe 3. Rainwater is discharged into the diversion well 6 through the filter inlet 13, and then into the upper drainage channel 7 through the diversion well 6. When the rainfall increases, the amount of rainwater and sewage increases. As the pollution level in the rainwater increases significantly, the lifting platform 12 descends, exposing the bottom space of the main drainage well 1 and revealing the diversion pipe 3. Through the diversion pipe 3, rainwater and sewage are introduced into the lower drainage channel 8 from the diversion pipe 3 and the inclined pipe 4. The upper drainage channel 7 and the lower drainage channel 8 are independent of each other. The lower drainage channel 8 discharges rainwater and sewage with high pollution levels. An anti-overflow valve 5 is installed on the inclined pipe 4 to prevent overflow and backflow. In addition, after the lifting platform 12 sinks, the filter inlet 13 is closed by the flap valve 9 to prevent rainwater and sewage from entering the diversion well 6.

[0028] The working principle of this utility model is as follows:

[0029] When using this utility model, rainwater enters the ball cavity 201 through the inlet 2, and then enters the main drainage well 1 through the ball cavity 201. Inside the main drainage well 1, the lifting platform 12 is adjusted according to the amount of rainwater. When the amount of rainwater is small, the lifting platform 12 rises to the position of blocking the diversion pipe 3. At this time, the rainwater enters the diversion well 6 through the filter inlet 13. After being filtered by the filter bucket 14, it is guided by the inclined plate 10 into the upper drainage channel 7 for discharge. This design ensures the effective discharge of relatively clean rainwater. When the amount of rainwater increases, the lifting platform 12 descends, exposing the diversion pipe 3. The rainwater and sewage are then introduced into the lower drainage channel 8 through the diversion pipe 3 and the inclined pipe 4, achieving the purpose of separating rainwater and sewage. At the same time, the anti-overflow valve 5 effectively avoids the situation of overflow and backflow, ensuring the stable operation of the drainage system.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A combined rainwater and sewage separation drainage ditch, characterized in that, include: The main drainage well (1) has an inlet (2) at its top. The main drainage well (1) has a lifting platform (12) installed inside it, and a waterproof lifting cylinder (11) is connected to the bottom of the lifting platform (12). A diversion well (6) is installed on the front side of the main drainage well (1). Diversion pipes (3) are connected to the flanges on the left and right sides of the main drainage well (1). A lower drainage channel (8) is installed at the lower end of the main drainage well (1). An inclined flow pipe (4) is connected to the lower end of the diversion pipe (3). An anti-overflow valve (5) is installed on the surface of the inclined flow pipe (4). An upper drainage channel (7) is connected to the bottom of the diversion well (6).

2. The integrated rainwater and sewage separation drainage ditch according to claim 1, characterized in that, The diversion pipe (3) and the inclined pipe (4) are interconnected, and the main drainage well (1) is interconnected with the lower drainage channel (8) through the diversion pipe (3) and the inclined pipe (4).

3. The integrated rainwater and sewage separation drainage ditch according to claim 1, characterized in that, A filter bucket (14) is installed between the lower end of the diversion well (6) and the upper drainage channel (7), and an inclined plate (10) is installed at the inner bottom of the upper drainage channel (7).

4. The integrated rainwater and sewage separation drainage ditch according to claim 1, characterized in that, The lower end of the diversion well (6) is connected to the upper drainage channel (7). A filter inlet (13) is installed between the main drainage well (1) and the diversion well (6), and a flap valve (9) is installed inside the filter inlet (13).

5. The integrated rainwater and sewage separation drainage ditch according to claim 1, characterized in that, A ball cavity (201) is installed at the bottom of the inlet (2), and a liquid level sensor (202) is installed on the inner wall of the ball cavity (201).

6. The integrated rainwater and sewage separation drainage ditch according to claim 5, characterized in that, A flow divider hole (203) is fixedly opened on the lower edge surface of the ball cavity (201), and a spiral flow divider plate (204) is installed below the ball cavity (201).

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