Rainwater and sewage diversion system and treatment method thereof

Abstract

The invention relates to the technical field of urban drainage systems, and discloses a rain and sewage diversion system and a treatment method thereof.The rain and sewage diversion system comprises a foundation, a diversion trench is formed in the top of the foundation, a trench baffle is fixedly connected to the inner wall of the diversion trench, a diversion plate is fixedly connected to one end of the diversion trench, and a filter tank is arranged in the middle of the diversion plate; a rainwater conveying pipe is fixedly connected to the interior of the filtering tank, one end of the rainwater conveying pipe is fixedly connected with a filtering well, a water storage pool is arranged below the diversion trench, the filtering well is arranged on one side of the water storage pool, and a water outlet well is arranged on the side, away from the filtering well, of the outer wall of the water storage pool. Rainwater and sewage are respectively guided to the independent treatment modules, so that the impact of mixed discharge of rain and sewage on a municipal sewage pipe network and a sewage treatment plant is avoided, the occurrence probability of urban waterlogging is greatly reduced, and the overall efficiency of an urban drainage system is improved.

Description

Technical Field

[0001] The invention relates to the technical field of urban drainage systems, and in particular to a rainwater and sewage diversion system and a treatment method thereof. Background Art

[0002] The urban drainage system is an important infrastructure to ensure the operation of the city and the ecological environment. Its main function is to remove surface rainwater and domestic sewage in a timely manner to prevent urban waterlogging and water pollution. With the acceleration of urbanization, the discharge of urban rainwater and sewage has increased dramatically. Especially under extreme weather conditions such as heavy rain, traditional drainage systems are difficult to deal with effectively, which can easily cause problems such as waterlogging and environmental pollution. Therefore, the construction of an efficient rainwater and sewage diversion system has become an important direction for improving urban drainage capacity, and it also meets the requirements of modern cities for green environmental protection and sustainable development.

[0003] At present, most cities still use a combined sewer system, that is, rainwater and sewage are discharged through the same pipe. This system can ensure normal operation when the rainfall is small, but under weather conditions such as heavy rain, the mixed discharge of rainwater and sewage will cause the sewage treatment plant to overload its treatment capacity, and a large amount of untreated pollutants will be directly discharged into natural water bodies, seriously affecting the ecological environment. At the same time, the mixed discharge of rainwater and sewage will increase the risk of urban waterlogging and put great pressure on municipal drainage facilities. Some cities have tried to adopt a rainwater and sewage diversion system to collect rainwater and sewage separately through independent pipes, but this method requires large-scale transformation of the original pipe network, which is large in engineering volume, high in cost, and has a long construction period, making it difficult to promote in existing cities. In addition, some technologies use intelligent control methods to adjust the drainage system, but the intelligence level of existing technologies is limited, especially when dealing with extreme weather conditions, and there is still much room for improvement in reliability and operation efficiency.

[0004] The existing technology has the following problems in application: In the traditional rainwater and sewage discharge system, there is a lack of diversion and independent treatment mechanism for rainwater and sewage. Especially under extreme weather conditions such as heavy rain, it is impossible to effectively reduce the impact of mixed rainwater and sewage discharge on sewage treatment facilities, which leads to increased risk of waterlogging and insufficient overall efficiency of urban drainage systems. In response to the above problems, a rainwater and sewage diversion system with modular design, intelligent control, and clear functions and its treatment method are proposed. By guiding rainwater and sewage to independent treatment modules respectively, the urban drainage capacity and system reliability are significantly improved. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a rainwater and sewage diversion system and a treatment method thereof, which solves the problem that the existing devices cannot effectively reduce the impact of mixed rainwater and sewage discharge on sewage treatment facilities, thereby increasing the risk of urban flooding.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a rainwater and sewage diversion system, including a foundation, a guide groove is arranged on the top of the foundation, a groove baffle is fixedly connected to the inner wall of the guide groove, a guide plate is fixedly connected to one end of the guide groove, a filter tank is arranged in the middle of the guide plate, a rainwater delivery pipe is fixedly connected to the interior of the filter tank, a filter well is fixedly connected to one end of the rainwater delivery pipe, a water storage tank is arranged below the guide groove, the filter well is arranged on one side of the water storage tank, a water outlet well is arranged on the outer wall of the water storage tank away from the filter well, the filter well and the water storage tank are connected through pipelines, a solenoid valve is arranged in the middle of the pipeline, a water supply pipe is fixedly connected to the outer wall of the water outlet well, a detection component is arranged above the guide groove, the detection component is used to detect the rainwater collection situation, and a sewage treatment component is arranged below the guide groove close to the water storage tank; The sewage treatment component includes a sedimentation tank, which is arranged below the diversion trough and close to the water storage tank. A sewage diversion pipe is fixedly connected to the top of the sedimentation tank, a floor drain cover is provided at one end of the sewage diversion pipe, a stirring mechanism is provided inside the sedimentation tank, a flocculant delivery pipe is fixedly connected to the top of the sedimentation tank away from the sewage diversion pipe, and a sewage delivery pipe is fixedly connected to the bottom of the sedimentation tank.

[0007] Preferably, the detection component includes a rain detector, which is fixedly connected above the guide groove, and a liquid level sensor is installed inside the water reservoir.

[0008] Preferably, electromagnetic valves are provided in the middle of the rainwater conveying pipe, the water conveying pipe and the sewage conveying pipe for opening and closing the rainwater conveying pipe, the water conveying pipe and the sewage conveying pipe.

[0009] Preferably, the flocculant delivery pipe is arranged inside the foundation, and the flocculant delivery pipe is used to deliver the flocculant to the inside of the sedimentation tank.

[0010] Preferably, the stirring mechanism is disposed below the guide groove, and the stirring mechanism is used to stir the sewage and the flocculant.

[0011] Preferably, the sewage diversion pipe is arranged below the diversion trough, and the sewage diversion pipe is used to transport sewage to the interior of the sedimentation tank.

[0012] Preferably, the rain detector is arranged above the guide plate, and the rain detector is used to detect the amount of rain.

[0013] Preferably, the filter well and the water outlet well are arranged inside the water reservoir, and the filter well and the water outlet well are used to purify and manage the flow of rainwater.

[0014] The present invention also provides a method for treating a rainwater-sewage diversion system, comprising the following steps: Step 1, collecting rainwater through the diversion trough and directing the rainwater into the filter tank; Step 2: After the rainwater is filtered in the filter tank, it is transported to the filter well through the rainwater delivery pipe; Step 3: The filtered rainwater flows into the reservoir and enters the water pipe through the outlet well for discharge or further treatment; Step 4: Monitor the amount of rainwater through the rain gauge and the water level of the reservoir through the liquid level sensor. When the reservoir reaches the preset water level, the intelligent control solenoid valve opens or closes the corresponding pipeline to achieve rainwater flow management; Step 5: collect domestic sewage through the floor drain cover, and the sewage enters the sedimentation tank through the sewage diversion pipe, and the sewage is mixed with the flocculant by the stirring mechanism to complete the sedimentation treatment; Step 6: The treated sewage is discharged through the sewage delivery pipe and enters the municipal sewage pipeline or other sewage treatment system.

[0015] The following further steps are included: Step 7: At the initial stage of rainfall, the rain detector is activated to detect the rain intensity. When the rain volume reaches a set value, the solenoid valve is controlled to open the rain water delivery pipe or water delivery pipe to ensure timely discharge of rain water. Step 8: For sewage treatment, quantitatively deliver flocculants to the sedimentation tank through the flocculant delivery pipe, and evenly mix the sewage and the flocculants through the stirring mechanism to accelerate the precipitation of suspended matter in the sewage; Step 9: During the rainwater and sewage treatment process, the water level change of the water reservoir is detected in real time by the liquid level sensor, and the opening time of the solenoid valve is adjusted according to the water level change to prevent the water reservoir from overflowing.

[0016] The present invention provides a rainwater and sewage diversion system and a treatment method thereof, which has the following beneficial effects: 1. The present invention guides rainwater and sewage to independent treatment modules respectively, thus avoiding the impact of mixed rainwater and sewage discharge on the municipal sewage network and sewage treatment plant, greatly reducing the probability of urban waterlogging and improving the overall efficiency of the urban drainage system.

[0017] 2. The rain gauge detector and liquid level sensor equipped in the present invention can monitor the rainwater collection situation and the water level of the reservoir in real time, and realize automatic opening and closing adjustment of the rainwater delivery pipe, water delivery pipe and sewage delivery pipe through the intelligent control solenoid valve, ensuring that the system can maintain efficient operation under different rainfall conditions. This intelligent design effectively reduces the need for manual intervention and improves the automation and reliability of the system.

[0018] 3. The system of the present invention adopts a modular design, including a rainwater collection module, a sewage interception module and an intelligent control module. The functions of each module are clear and independent, which is convenient for flexible application in different urban drainage systems. The structural design of core components such as diversion troughs, filter tanks, filter wells and sedimentation tanks is convenient for construction and subsequent maintenance. Compared with traditional drainage network reconstruction methods, it has lower engineering workload and construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of the present invention; Figure 2 It is a partial structural schematic diagram of the filter well of the present invention; Figure 3 It is a partial structural schematic diagram of the water storage tank of the present invention; Figure 4 It is a schematic diagram of the structure of the rainwater conveying pipe of the present invention; Figure 5 It is a partial structural schematic diagram of the flocculant delivery pipe of the present invention; Figure 6 It is a partial structural schematic diagram of the water outlet well of the present invention.

[0020] Among them, 1. foundation; 2. diversion trough; 3. trough baffle; 4. diversion plate; 5. filter tank; 6. rainwater delivery pipe; 7. filter well; 8. water storage tank; 9. outlet well; 10. water supply pipe; 11. sewage diversion pipe; 12. sedimentation tank; 13. stirring mechanism; 14. flocculant delivery pipe; 15. sewage delivery pipe; 16. rainfall detector; 17. floor drain cover; 18. liquid level sensor. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0022] Example: Please see attached Figure 1 -Attached Figure 6The embodiment of the present invention provides a rainwater-sewage diversion system, comprising a foundation 1, a guide groove 2 is arranged on the top of the foundation 1, a groove baffle 3 is fixedly connected to the inner wall of the guide groove 2, a guide plate 4 is fixedly connected to one end of the guide groove 2, a filter tank 5 is arranged in the middle of the guide plate 4, a rainwater delivery pipe 6 is fixedly connected to the inside of the filter tank 5, a filter well 7 is fixedly connected to one end of the rainwater delivery pipe 6, a water storage tank 8 is arranged below the guide groove 2, the filter well 7 is arranged on one side of the water storage tank 8, a water outlet well 9 is arranged on the outer wall of the water storage tank 8 away from the filter well 7, the filter well 7 and the water storage tank 8 are connected as well as the water outlet well 9 and the water storage tank 8 are connected by pipelines, solenoid valves are arranged in the middle of the pipelines, a water supply pipe 10 is fixedly connected to the outer wall of the water outlet well 9, a detection component is arranged above the guide groove 2, and the detection component is used to detect the rainwater collection situation, and a sewage treatment component is arranged below the guide groove 2 near the water storage tank 8; The sewage treatment component includes a sedimentation tank 12, which is arranged below the diversion trough 2 and close to the water storage tank 8. The top of the sedimentation tank 12 is fixedly connected to a sewage diversion pipe 11, one end of the sewage diversion pipe 11 is provided with a floor drain cover 17, a stirring mechanism 13 is provided inside the sedimentation tank 12, a flocculant delivery pipe 14 is fixedly connected to the top of the sedimentation tank 12 away from the sewage diversion pipe 11, and a sewage delivery pipe 15 is fixedly connected to the bottom of the sedimentation tank 12.

[0023] In one embodiment, surface rainwater first enters the system through the guide trough 2. The trough baffle 3 fixedly connected to the inner wall of the guide trough 2 is used to intercept large particles of impurities, such as fallen leaves, silt and gravel, to prevent these impurities from entering the subsequent treatment system; the intercepted rainwater is guided to the guide plate 4, and a filter tank 5 is arranged in the middle of the guide plate. The filter tank further performs preliminary filtration on the rainwater to remove fine particles of impurities and improve the purification degree of the rainwater; the rainwater filtered by the filter tank 5 is transported to the filter well 7 through the rainwater delivery pipe 6, wherein a solenoid valve is arranged in the middle of the rainwater delivery pipe to dynamically adjust the flow rate of the rainwater; the rainwater is further purified after entering the filter well, and the filter well 7 removes the residual tiny particles through physical purification means to ensure that the cleanliness of the rainwater meets the storage or utilization requirements; the purified rainwater flows into the reservoir 8 for centralized storage. A liquid level sensor 18 is installed in the water reservoir to monitor the water level of the water reservoir in real time. When the water level of the water reservoir reaches a preset value, rainwater is transported to the outlet well 9 through a pipeline, and then discharged or reused by a water delivery pipe 10. A solenoid valve is also provided in the middle of the water delivery pipe to control the rainwater flow and diversion path.

[0024] Domestic sewage enters the sewage diversion pipe 11 through the floor drain cover 17 in the household sewage pipe, and the sewage diversion pipe is responsible for conveying the sewage to the sedimentation tank 12; in the sedimentation tank 12, the sewage first passes through the stirring mechanism 13 and is fully mixed with the flocculant added by the flocculant delivery pipe 14. The flocculant can effectively condense the suspended particles in the sewage to form sediments, accelerating the removal process of suspended matter; the treated sewage is deposited at the bottom of the sedimentation tank, and the clear liquid is conveyed to the municipal sewage network or subsequent sewage treatment facilities through the sewage delivery pipe 15. The middle of the sewage delivery pipe is also provided with a solenoid valve to adjust the sewage flow; the rain detector 16 monitors the rainfall changes in real time. When the rainfall reaches the set value, the system adjusts the opening and closing states of each solenoid valve through the intelligent control module and dynamically allocates the rainwater treatment process; the liquid level sensor 18 monitors the water level of the reservoir to ensure that the reservoir operates within a safe storage range; based on the real-time data of the rain detector and the liquid level sensor, the system intelligently adjusts the opening and closing states of the solenoid valves in the rainwater delivery pipe, the water delivery pipe and the sewage delivery pipe. The design realizes fully automated management of the rainwater and sewage diversion system without the need for human intervention; in extreme weather conditions such as heavy rain, the system will give priority to discharging excess rainwater to the outlet well to avoid overflow of the reservoir while ensuring the normal operation of the sewage treatment module.

[0025] The detection component includes a rain detector 16 , which is fixedly connected above the guide trough 2 , and a liquid level sensor 18 is installed inside the water reservoir 8 .

[0026] In one embodiment, the rain detector 16 is fixedly installed above the guide trough 2, and can monitor the rainfall changes in the environment in real time. Its position design can directly sense the actual rainfall intensity before the rainwater enters the guide trough; when light rain, moderate rain or heavy rain is detected, the rain detector will collect data in real time and transmit it to the intelligent control module; the intelligent control module dynamically adjusts the opening and closing states of the electromagnetic valves in the rainwater delivery pipe 6 and the water delivery pipe 10 according to the rainfall information provided by the rain detector to ensure that the rainwater can be processed or discharged through the system in time; light rain: the system only collects and purifies a small amount of rainwater, and controls the opening time of the electromagnetic valve to be shorter to save energy; moderate rain: while maintaining normal operation, the system accelerates the delivery and discharge of rainwater to prevent the water level of the reservoir 8 from being too high; heavy rain: the system opens all rainwater delivery channels such as filter wells, reservoirs and outlet wells , give priority to discharging excess rainwater, reduce system pressure, and prevent waterlogging or overflow of the reservoir; the liquid level sensor 18 is installed inside the reservoir 8, and is used to monitor the water level in the reservoir in real time to avoid overflow caused by excessive rainwater storage; the liquid level sensor feeds back the water level information to the intelligent control module. When the water level reaches the preset threshold, the system will trigger the following responses: open the solenoid valve of the water supply pipe 10, discharge excess rainwater to the outlet well 9, and realize automatic emptying of the reservoir; suspend further collection of rainwater, and directly guide new rainfall to the filter well 7 or the water supply pipe to prevent the reservoir from overloading; when the water level is low, the system will give priority to storing rainwater and close the solenoid valve of the water supply pipe 10 to ensure the resource utilization of rainwater.

[0027] Solenoid valves are provided in the middle of the rainwater conveying pipe 6, the water supply pipe 10 and the sewage conveying pipe 15 for opening and closing the rainwater conveying pipe 6, the water supply pipe 10 and the sewage conveying pipe 15; the flocculant conveying pipe 14 is arranged inside the foundation 1, and the flocculant conveying pipe 14 is used to convey the flocculant to the inside of the sedimentation tank 12.

[0028] In one embodiment, electromagnetic valves are arranged in the middle of the rainwater delivery pipe 6, the water delivery pipe 10 and the sewage delivery pipe 15 to control the flow and diversion path of rainwater and sewage; each electromagnetic valve is connected to the intelligent control module, and is dynamically adjusted according to real-time monitoring data such as rainfall, water level and sewage flow, so as to realize efficient pipeline flow management; electromagnetic valve of rainwater delivery pipe 6: under light rain or moderate rain conditions, the electromagnetic valve is partially opened to control the rainwater to flow into the filter well 7 and then into the reservoir 8 for storage; under heavy rain conditions, the electromagnetic valve is fully opened to accelerate the delivery of rainwater and avoid storage The water level in the pool is too high, causing overflow; Solenoid valve in water delivery pipe 10: When the water level in the water storage tank 8 reaches the preset value, the solenoid valve opens to discharge excess rainwater into the outlet well 9, and quickly discharges it through the water delivery pipe to ensure stable operation of the system; in the case of low water level, the solenoid valve closes, and rainwater is stored first for reuse; Solenoid valve in sewage delivery pipe 15: The solenoid valve adjusts the opening and closing state according to the sewage flow rate, and controls the purified sewage to be transported from the sedimentation tank 12 to the municipal sewage network; in the case of system maintenance or emergencies, the solenoid valve can be closed to suspend sewage transportation to prevent sewage backflow; Solenoid valve and rainfall The detector 16 and the liquid level sensor 18 are linked to respond to the dynamic changes of rainwater and sewage in real time to achieve accurate and efficient flow control; the independent control modes of different solenoid valves ensure that the system can flexibly respond to various working conditions, such as sudden rainstorms, large amounts of sewage discharge or special needs during maintenance; the flocculant delivery pipe 14 is arranged inside the foundation 1, connecting the intelligent control module and the sedimentation tank 12, and is used to accurately deliver the flocculant to the sedimentation tank; the flocculant is automatically and quantitatively added during the process of sewage diversion to the sedimentation tank, and after mixing with the sewage, it can significantly promote the suspension and Agglomeration and sedimentation of tiny particles; the dosage of flocculant is adjusted through the intelligent control module to adapt to different sewage flow rates and pollution levels to avoid waste or insufficient dosage; the added flocculant is fully mixed with the sewage through the stirring mechanism 13, so that the impurities in the sewage quickly form larger floc particles and settle at the bottom of the sedimentation tank, thereby improving the purification efficiency; the flocculant delivery pipe is linked with other modules of the system such as the stirring mechanism to realize the automation and efficiency of sewage treatment; the dosage rate is adjusted according to the concentration and flow rate of pollutants in the sewage to ensure the utilization rate and treatment effect of the flocculant.

[0029] The stirring mechanism 13 is disposed below the guide groove 2 , and is used to stir the sewage and the flocculant.

[0030] In one embodiment, domestic sewage enters the sedimentation tank 12 through the sewage diversion pipe 11, and at the same time, a certain amount of flocculant is added to the sewage through the flocculant delivery pipe 14; after the flocculant initially contacts the sewage, it enters the stirring area; the stirring mechanism 13 produces a strong stirring effect by rotating the stirring blades or the mechanical stirring device, and quickly and evenly disperses the flocculant into the sewage; during the stirring process, the suspended matter in the sewage undergoes physical adsorption and chemical flocculation reaction with the flocculant to form larger floc particles; the stirring action can also accelerate the collision and adhesion of the floc particles with the suspended impurities in the water, so that the suspended impurities are further aggregated into blocks; the stirred sewage is left to stand in the sedimentation tank 12, and the larger floc particles are deposited to the bottom due to gravity to form sludge; the supernatant is discharged into the municipal sewage network or other sewage treatment facilities through the sewage delivery pipe 15.

[0031] The sewage diversion pipe 11 is disposed below the diversion trough 2 , and is used to transport the sewage to the interior of the sedimentation tank 12 .

[0032] In one embodiment, sewage is discharged from residential areas, commercial blocks and other areas, and flows into the floor drain cover 17 through the household sewage pipe; the floor drain cover can effectively filter out larger solid impurities such as plastic bags, leaves, etc., to ensure that there is no blockage when the sewage enters the diversion pipe; the sewage collected by the floor drain cover enters the sewage diversion pipe 11 and is directly transported to the sedimentation tank 12; the diameter of the sewage diversion pipe is designed according to the sewage discharge volume to ensure sufficient transportation capacity while avoiding excessive flow velocity in the pipe to induce vortexes; under the action of the intelligent control module, the operation of the diversion pipe can be dynamically adjusted by the solenoid valve. When the system detects that the sewage discharge volume is small, the pipe can be partially opened to save energy; when the sewage discharge volume increases, the pipe inlet is fully opened to ensure transportation efficiency; the end of the sewage diversion pipe is directly connected to the inlet of the sedimentation tank 12, and the introduced sewage is evenly distributed to the inside of the sedimentation tank through a specially designed diffusion device such as a diverter or a guide plate to avoid concentrated inflow causing short-flow or local overload problems in the tank.

[0033] A rain detector 16 is disposed above the guide plate 4 and is used to detect the amount of rainwater. The filter well 7 and the outlet well 9 are disposed inside the reservoir 8 and are used to purify and manage the flow of rainwater.

[0034] In one embodiment, the rain detector 16 is fixedly installed above the guide plate 4, directly exposed to the rain contact area, and can sense the changes in rainfall in the environment in real time; its setting position is close to the guide groove 2, and can quickly collect rainfall information before entering the system, and provide timely feedback for the diversion treatment of rainwater; the rain detector can monitor the rainfall intensity in real time and transmit the data to the intelligent control module; according to the amount of rainfall, the intelligent control module dynamically adjusts the opening and closing state of the electromagnetic valve in the rainwater delivery pipe 6 and the water delivery pipe 10 to optimize the rainwater treatment path: during light rain: the electromagnetic valve is partially opened, and the rainwater is preferentially stored in the reservoir 8 for subsequent use; during moderate rain: the system improves the rainwater delivery efficiency while ensuring that the water level of the reservoir is maintained within a safe range; during heavy rain: the electromagnetic valve is fully opened, and the rainwater quickly passes through the filter well 7 for purification and is directly discharged to the outlet well 9, which preferentially reduces the storage pressure of the reservoir to avoid waterlogging and overflow; the rain detector works in conjunction with the liquid level sensor 18 to adjust the rainwater level according to the amount of rain and the water storage tank. The dynamic change of the pool water level adjusts the entire rainwater treatment process; when the rainfall stops or the rainfall decreases, the intelligent control module will automatically close some solenoid valves according to the feedback of the rain detector, saving energy and extending the life of the equipment; the filter well 7 is arranged inside the reservoir 8, which is an important purification device before the rainwater enters the reservoir, and is used to further treat the rainwater; after the rainwater enters the filter well from the rainwater delivery pipe 6, the fine particles, suspended matter and other impurities in the rainwater are removed through a physical filtering device such as a filter or a multi-layer filter medium, thereby improving the purification degree of the rainwater; the design of the filter well includes multi-layer filtering materials and a sedimentation device, which can effectively separate the residual pollutants in the rainwater; the filtered rainwater enters the reservoir for storage, and the water quality is cleaner and can be used for non-drinking purposes such as irrigation and cleaning; the flow of the filter well can be controlled by the intelligent control module through the solenoid valve to realize the dynamic adjustment of purification and flow management; when it is detected that the filter well is blocked or the flow is insufficient, the system will automatically adjust the rainwater delivery path to ensure the continuity of the purification process.

[0035] This embodiment also discloses a method for treating a rainwater-sewage diversion system, comprising the following steps: Step 1: collecting rainwater through the diversion trough 2 and directing the rainwater into the filter tank 5; Step 2: After the rainwater is filtered by the filter tank 5, it is transported to the filter well 7 through the rainwater transport pipe 6; Step 3: The filtered rainwater flows into the water storage tank 8 and enters the water delivery pipe 10 through the outlet well 9 for discharge or further treatment; Step 4: The rainfall detector 16 monitors the amount of rainwater, and the liquid level sensor 18 monitors the water level of the water reservoir 8. When the water reservoir 8 reaches the preset water level, the intelligent control solenoid valve opens or closes the corresponding pipeline to achieve rainwater flow management; Step 5: collect domestic sewage through the floor drain cover 17, and the sewage enters the sedimentation tank 12 through the sewage diversion pipe 11, and the sewage is mixed with the flocculant by the stirring mechanism 13 to complete the sedimentation treatment; Step 6: The treated sewage is discharged through the sewage delivery pipe 15 and enters the municipal sewage pipeline or other sewage treatment system.

[0036] The following further steps are included: Step 7: At the initial stage of rainfall, the rain detector 16 is started to detect the rain intensity. When the rain reaches the set value, the solenoid valve is controlled to open the rainwater delivery pipe 6 or the water delivery pipe 10 to ensure timely discharge of rainwater; Step 8: For sewage treatment, quantitatively deliver flocculant to the sedimentation tank 12 through the flocculant delivery pipe 14, and evenly mix the sewage and the flocculant through the stirring mechanism 13 to accelerate the precipitation of suspended matter in the sewage; Step 9: During the rainwater and sewage treatment process, the water level change of the water reservoir 8 is detected in real time by the liquid level sensor 18, and the opening time of the solenoid valve is adjusted according to the water level change to prevent the water reservoir from overflowing.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rainwater and sewage diversion system, comprising a foundation (1), characterized in that: A guide groove (2) is arranged on the top of the foundation (1); a groove baffle (3) is fixedly connected to the inner wall of the guide groove (2); a guide plate (4) is fixedly connected to one end of the guide groove (2); a filter tank (5) is arranged in the middle of the guide plate (4); a rainwater conveying pipe (6) is fixedly connected to the inside of the filter tank (5); a filter well (7) is fixedly connected to one end of the rainwater conveying pipe (6); a water storage tank (8) is arranged below the guide groove (2); and the filter well (7) is arranged on one side of the water storage tank (8). An outlet well (9) is arranged on the outer wall of the water reservoir (8) away from the filter well (7); the filter well (7) and the water reservoir (8) are connected via pipes, and the outlet well (9) and the water reservoir (8) are connected via pipes; a solenoid valve is arranged in the middle of each pipe; a water supply pipe (10) is fixedly connected to the outer wall of the outlet well (9); a detection component is arranged above the guide groove (2), and the detection component is used to detect the rainwater collection situation; and a sewage treatment component is arranged below the guide groove (2) and close to the water reservoir (8); The sewage treatment component comprises a sedimentation tank (12), the sedimentation tank (12) being arranged below the diversion trough (2) and close to the water storage tank (8), the top of the sedimentation tank (12) being fixedly connected to a sewage diversion pipe (11), one end of the sewage diversion pipe (11) being provided with a floor drain cover (17), a stirring mechanism (13) being arranged inside the sedimentation tank (12), a flocculant delivery pipe (14) being fixedly connected to the top of the sedimentation tank (12) away from the sewage diversion pipe (11), and the bottom of the sedimentation tank (12) being fixedly connected to a sewage delivery pipe (15).

2. A rainwater and sewage diversion system according to claim 1, characterized in that: The detection assembly comprises a rain detector (16), the rain detector (16) being fixedly connected above the guide groove (2), and a liquid level sensor (18) being installed inside the water reservoir (8).

3. A rainwater and sewage diversion system according to claim 1, characterized in that: Solenoid valves are provided in the middle of the rainwater delivery pipe (6), the water delivery pipe (10) and the sewage delivery pipe (15) for opening and closing the rainwater delivery pipe (6), the water delivery pipe (10) and the sewage delivery pipe (15).

4. A rainwater and sewage diversion system and treatment method thereof according to claim 1, characterized in that: The flocculant delivery pipe (14) is arranged inside the foundation (1), and the flocculant delivery pipe (14) is used to deliver the flocculant to the inside of the sedimentation tank (12).

5. A rainwater and sewage diversion system according to claim 1, characterized in that: The stirring mechanism (13) is arranged below the guide groove (2), and the stirring mechanism (13) is used to stir the sewage and the flocculant.

6. A rainwater and sewage diversion system according to claim 1, characterized in that: The sewage diversion pipe (11) is arranged below the diversion trough (2), and the sewage diversion pipe (11) is used to transport sewage to the interior of the sedimentation tank (12).

7. A rainwater and sewage diversion system according to claim 2, characterized in that: The rain detector (16) is arranged above the guide plate (4), and the rain detector (16) is used to detect the amount of rainwater.

8. The rainwater and sewage diversion system according to claim 1, characterized in that: The filter well (7) and the water outlet well (9) are arranged inside the water reservoir (8), and the filter well (7) and the water outlet well (9) are used to purify rainwater and manage its flow.

9. A method for treating a rainwater-sewage diversion system, according to a rainwater-sewage diversion system according to any one of claims 1 to 8, characterized in that: The following steps are involved: Step 1: collecting rainwater through the diversion trough (2) and directing the rainwater into the filter tank (5); Step 2: After the rainwater is filtered by the filter tank (5), it is transported to the filter well (7) through the rainwater transport pipe (6); Step 3: The filtered rainwater flows into the water storage tank (8) and enters the water delivery pipe (10) through the outlet well (9) for discharge or further treatment; Step 4: The rainfall amount is monitored by the rain detector (16), and the liquid level sensor (18) monitors the water level of the water reservoir (8). When the water reservoir (8) reaches a preset water level, the intelligent control solenoid valve opens or closes the corresponding pipeline to achieve rainwater flow management; Step 5: domestic sewage is collected through the floor drain cover (17), and the sewage enters the sedimentation tank (12) through the sewage diversion pipe (11), and the sewage is mixed with the flocculant by the stirring mechanism (13) to complete the sedimentation treatment; Step 6: The treated sewage is discharged through the sewage delivery pipe (15) and enters the municipal sewage pipe network or other sewage treatment system.

10. A method for treating a rainwater-sewage diversion system according to claim 9, characterized in that: The following further steps are included: Step 7: At the initial stage of rainfall, the rain detector (16) is activated to detect the rain intensity. When the amount of rain reaches a set value, the solenoid valve is controlled to open the rainwater delivery pipe (6) or the water delivery pipe (10) to ensure timely discharge of rainwater; Step 8: For sewage treatment, a flocculant is quantitatively delivered to the sedimentation tank (12) through the flocculant delivery pipe (14), and the sewage and the flocculant are evenly mixed through the stirring mechanism (13) to accelerate the precipitation of suspended matter in the sewage; Step 9: During the rainwater and sewage treatment process, the water level change of the water reservoir (8) is detected in real time by the liquid level sensor (18), and the opening time of the solenoid valve is adjusted according to the water level change to prevent the water reservoir from overflowing.

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