A sewage diversion reconstruction device for old urban village

Abstract

The utility model relates to water environment engineering technical field especially is old and worn village sewage diversion reconstruction device, including prefabricated well body, disc, drive assembly, electric tee diversion valve and blowing mechanism, is provided with discharge port and support seat on prefabricated well body, is provided with support column with through -hole A on support seat, is provided with through -hole B and gas guide groove on support column, is provided with confluence inlet pipe on prefabricated well body, disc sets up on support column, coaxial filter screen is set up on disc, is provided with a plurality of baffle on filter screen, is provided with guide pipe on disc, drive assembly drives guide pipe rotation, electric tee diversion valve's input and guide pipe conduction connection, and its input sets up detection assembly B, and its two output ends are respectively conduction setting rainwater pipe and sewage pipe, blowing mechanism is sent into high pressure gas in gas guide groove through in working condition. The device can automatically identify and separate rainwater and sewage, and has the function of intercepting impurities and self-cleaning, and convenient construction simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of water environment engineering technology, and in particular to a sewage diversion and renovation device for old urban villages. Background Technology

[0002] In many old urban villages, combined sewer systems are commonly used. During rainfall, large amounts of rainwater mix with domestic sewage, easily exceeding the treatment capacity of sewage treatment plants, leading to overflow pollution that is directly discharged into natural water bodies, severely damaging the ecological environment. Currently, implementing rainwater and sewage separation in these areas is the fundamental solution to this problem. However, traditional renovation methods face many challenges: First, excavating roads and constructing two independent drainage pipe networks is costly, time-consuming, and has a significant impact on residents' lives and traffic. Second, the narrow and complex roads within old urban villages make construction extremely difficult. Therefore, a completely new separation renovation scheme needs to be designed.

[0003] Chinese patent CN216007174U discloses a sewage diversion and renovation device for old urban villages. This device, through the design of a PVC three-way pipe, sewage pipe, rainwater pipe, sewage control valve, and rainwater control valve, can achieve the separation of rainwater and sewage. The design is ingenious, the structure is simple, and it is easy to install. The grating allows for the filtration of larger debris, preventing it from flowing into the sewage or rainwater pipes. The combination of activated carbon and nylon filters filters debris from the sewage and adsorbs harmful substances, achieving sewage treatment. The baffle design allows for the secondary filtration of unfiltered debris in the rainwater, thus improving the filtration effect.

[0004] However, the device still has shortcomings: it lacks an analysis structure for water conditions, cannot achieve intelligent separation of rainwater and sewage, and impurities trapped in the device can easily cause pipe blockage, making cleaning very difficult. Therefore, improvements are needed. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a sewage diversion and renovation device for old urban villages.

[0006] The technical solution of this utility model is as follows: a sewage diversion and renovation device for old urban villages, including a prefabricated well body, a discharge port on the prefabricated well body, a support base in the prefabricated well body, a support column with a through hole A coaxially arranged on the support base, a through hole B communicating with the through hole A on the support column, and an air guide groove on the support column, and a combined water inlet pipe corresponding to and communicating with the through hole B on the prefabricated well body. A disc is mounted on a support column. A filter screen is coaxially mounted on the disc and fitted onto the arc surface of the support column. Several baffles are arranged in a ring array around the outer wall of the filter screen. The baffles slide in contact with the inner wall of the precast well body. A guide pipe is coaxially mounted on the disc and rotatably connected to the support column. A drive assembly is mounted on a support base and drives the guide tube to rotate. An electric three-way diverter valve is installed inside the precast well. The input end of the electric three-way diverter valve is connected to the feed pipe. The input end of the electric three-way diverter valve is equipped with a detection component B for online water quality detection. The two output ends of the electric three-way diverter valve are respectively connected to a rainwater pipe and a sewage pipe. And the air blowing mechanism, which is installed in the precast well body, when in operation, the air blowing mechanism sends high-pressure gas into the air guide groove to clear the filter screen and blow out the trapped impurities along the discharge port.

[0007] Preferably, the outer wall of the feed tube slides in contact with the inner wall of the through hole A, and the feed tube is provided with a through hole C so that its internal channel is always connected with the through hole A through the through hole C.

[0008] Preferably, the upper end of the partition is fixedly connected to the bottom surface of the disk, and the lower end of the partition is in sliding contact with the upper surface of the support base.

[0009] Preferably, the detection component B includes a turbidity sensor for detecting water turbidity, a UVCOD sensor for assessing the concentration of organic pollutants, and a flow meter B for monitoring the internal water flow status at the input of the electric three-way diverter valve.

[0010] Preferably, a detection component A for monitoring the internal water flow status is provided on the combined inlet pipe, and the detection component A includes a flow meter A.

[0011] Preferably, the air blowing mechanism includes an air storage tank and an air compressor. Both the air storage tank and the air compressor are installed inside the precast well. A flow guide channel is provided on the support base. An electric heater is installed in the flow guide channel. The output end of the flow guide channel is connected to the air guide groove. The input end of the flow guide channel is connected to the output end of the air storage tank. The input end of the air compressor is connected to the outside. The output end of the air compressor is connected to the input end of the air storage tank.

[0012] Preferably, a collection box is installed on the precast well body, with a material intake port at the top of the collection box and a material inlet on the side of the collection box. The material inlet is connected to the discharge port. A well cover is installed on the collection box to seal the precast well body and the material intake port. The well cover is provided with a vent A that communicates with the inside of the guide pipe and a vent B that communicates with the inside of the collection box.

[0013] Compared with the prior art, the present invention has the following beneficial technical effects: Multiple sensors installed at the inlet and water quality monitoring points monitor key parameters such as influent flow rate, turbidity, and COD in real time. After comprehensive analysis by the intelligent controller, the operation of the electric three-way diversion valve is automatically controlled to achieve accurate identification and diversion of rainwater and sewage. This fundamentally avoids rainwater mixing into the sewage pipe network and increasing the load on the treatment plant, and also prevents sewage from being directly discharged into natural water bodies, significantly improving the diversion effect and the efficiency of regional water environment treatment. An innovative self-cleaning system combining a rotating filter screen and high-pressure air blowing is designed. When the filter screen is clogged, the drive component can drive it to rotate, while the air blowing mechanism blows high-pressure gas (optionally heated) evenly to the entire inner wall of the filter screen, thoroughly peeling off and removing the attached debris, which is automatically discharged through the discharge port. This process is fully automatic and requires no manual intervention, greatly reducing maintenance frequency, labor intensity, and safety hazards, and ensuring the long-term stable operation of the device. The core components of the device are all integrated into the prefabricated well body, with a compact structure, and can be installed as a complete modular unit. This advantage is particularly prominent in the narrow spaces of old urban areas, which greatly reduces the excavation area and construction time, and reduces the impact on the surrounding environment and residents' lives. It is especially suitable for the rapid and low-cost replacement or upgrading of existing combined sewer manholes. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model; Figure 2 This is a schematic diagram of the prefabricated well body; Figure 3 This is a schematic diagram of the connection structure of the various components on the support plate; Figure 4 This is a schematic diagram of the connection structure between the support plate and the support column; Figure 5 This is a schematic diagram of the connection structure between the filter and the drive assembly.

[0015] Reference numerals: 1. Precast well body; 101. Discharge port; 2. Support base; 3. Support column; 31. Through hole A; 32. Through hole B; 33. Air guide channel; 4. Disc; 5. Filter screen; 6. Baffle plate; 7. Material guide pipe; 71. Through hole C; 8. Drive assembly; 81. Gear ring; 82. Gear; 83. Servo motor; 9. Combined water inlet pipe; 10. Detection assembly A; 11. Electric three-way diverter valve; 12. Detection assembly B; 13. Rainwater pipe; 14. Sewage pipe; 15. Electric heater; 16. Connecting pipe; 17. Air storage tank; 18. Air compressor; 19. Collection box; 20. Well cover; 2001. Vent hole A; 2002. Vent hole B. Detailed Implementation

[0016] Example 1, as Figures 1-5As shown, this utility model proposes a sewage diversion renovation device for old urban villages, including a prefabricated well body 1, a disc 4, a drive assembly 8, an electric three-way diversion valve 11, and an air blowing mechanism. The prefabricated well body 1 is provided with a discharge port 101. A support base 2 is provided inside the prefabricated well body 1. A support column 3 with a through hole A31 is coaxially arranged on the support base 2. A through hole B32 communicating with the through hole A31 is provided on the support column 3, and an air guide groove 33 is provided on the support column 3. A combined inlet pipe 9 corresponding to and communicating with the through hole B32 is provided on the prefabricated well body 1. A detection assembly A10 for monitoring the internal water flow state is provided on the combined inlet pipe 9, and the detection assembly A10 includes a flow meter A. A disc 4 is mounted on a support column 3. A filter screen 5 is coaxially mounted on the disc 4, and the filter screen 5 is fitted onto the arc surface of the support column 3. Several partitions 6 are arranged in a ring around the outer wall of the filter screen 5. The partitions 6 are in sliding contact with the inner wall of the precast well body 1. The upper end of the partitions 6 is fixedly connected to the bottom surface of the disc 4, and the lower end of the partitions 6 is in sliding contact with the upper end surface of the support base 2. A guide pipe 7 is coaxially mounted on the disc 4 and rotatably connected to the support column 3. The outer wall of the guide pipe 7 is in sliding contact with the inner wall of the through hole A31. A through hole C71 is provided on the guide pipe 7 so that its internal channel is always connected to the through hole A31. The drive assembly 8 includes a gear ring 81, a gear 82, and a servo motor 83. A circular groove is provided on the support base 2, and a sealing cap is provided at the opening of the groove. The feed pipe 7 passes through the sealing cap and is rotatably connected to it. Both the gear ring 81 and the gear 82 are located within the circular groove. The gear ring 81 is coaxially connected to the feed pipe 7, and the central shaft of the gear 82 is rotatably connected to the support base 2. The gear 82 meshes with the gear ring 81. The body of the servo motor 83 is mounted on the support base 2, and the output end of the servo motor 83 is connected to the central shaft of the gear 82 via a coupling. An electric three-way diverter valve 11 is installed inside the prefabricated well body 1. The input end of the electric three-way diverter valve 11 is connected to the feed pipe 7. A detection assembly B12 for online water quality detection is installed at the input end of the electric three-way diverter valve 11. The detection assembly B12 includes a turbidity sensor for detecting water turbidity, a UVCOD sensor for assessing the concentration of organic pollutants, and a flow meter A for monitoring the internal water flow state at the input end of the electric three-way diverter valve 11. The two output ends of the electric three-way diverter valve 11 are respectively connected to the rainwater pipe 13 and the sewage pipe 14. The air blowing mechanism is set inside the prefabricated well body 1. The air blowing mechanism includes an air storage tank 17 and an air compressor 18. Both the air storage tank 17 and the air compressor 18 are set inside the prefabricated well body 1. A guide channel is set on the support base 2. An electric heater 15 is set in the guide channel. The output end of the guide channel is connected to the air guide groove 33. A connecting pipe 16 is set at the input end of the guide channel. The other end of the connecting pipe 16 is connected to the output end of the air storage tank 17. The input end of the air compressor 18 is connected to the outside. The output end of the air compressor 18 is connected to the input end of the air storage tank 17. When the air blowing mechanism is in operation, high-pressure gas is sent into the air guide groove 33 to clear the filter screen 5 and blow out the trapped impurities along the discharge port 101.

[0017] It should be noted that this embodiment also includes an intelligent controller, which is installed on the outer wall of the prefabricated well body or inside a ground control box. Its signal input terminal is connected to the detection components A10 and B12 via cables, and its control output terminal is connected to the electric three-way diverter valve 11 via a control cable. A self-cleaning mechanism is also provided inside the water inlet detection chamber to prevent contamination of the sensor probe. The self-cleaning mechanism includes a spray ring surrounding the sensor probe, which is connected to a high-pressure water source via pipelines and a solenoid valve. The intelligent controller also includes a data storage and wireless transmission module, capable of remotely transmitting detection data and operating status to a monitoring center.

[0018] In this embodiment, installation pits are excavated at fixed intervals on the roads within the urban village. The device is installed in the pits, and the sewage pipes and rainwater pipes of adjacent devices are connected one by one. The existing combined sewer and stormwater pipes inside the road are connected to the combined inlet pipe 9. Domestic sewage and rainwater from the combined sewer system first enter the device through the combined inlet pipe 9. The detection component A10 (including flow meter A) installed on the pipeline monitors the inlet flow rate in real time. After the water flows into the prefabricated well body 1, it first impacts the filter screen 5 on the disc 4. The filter screen 5 performs preliminary solid-liquid separation on the water flow, trapping solid impurities. At this time, the water flows through the filter screen 5, while impurities are blocked in the filter chamber formed by the partition 6. The filtered water flows into the central area surrounded by the filter screen 5, the guide pipe 7, and the support column 3, and enters its internal channel through the through hole C71 on the guide pipe 7, finally flowing into the input end of the electric three-way diverter valve 11. Here, detection component B12 (including a turbidity sensor, a UVCOD sensor, and flow meter B) performs online real-time analysis of the water quality, obtaining key indicators such as turbidity and COD (chemical oxygen demand). The core control unit of the device—the intelligent controller—simultaneously receives flow and water quality data from detection components A10 and B12. Based on a preset algorithm, the controller comprehensively judges the nature of the water flow: when water quality indicators (such as turbidity and COD) are below the set threshold and the flow rate is large, it is determined to be mainly rainwater, and the electric three-way diversion valve 11 is controlled to switch to the rainwater pipe 13 channel; when water quality indicators exceed the threshold, it is determined to be domestic sewage, and the valve is controlled to switch to the sewage pipe 14 channel, thereby achieving precise separation of rainwater and sewage. During operation, the filter screen 5 will gradually become clogged with impurities. When detection component A10, in conjunction with detection component B12, detects a significant decrease in the inlet water flow (i.e., the water flow rate in the combined inlet pipe 9 is significantly greater than the water flow rate into the electric three-way flow valve 11), or when the intelligent controller initiates the cleaning program according to the set cycle, drive component 8 works in conjunction with the air blowing mechanism. Servo motor 83 starts, driving gear ring 81 through gear 82, causing guide pipe 7 and the fixed disc 4 and filter screen 5 to rotate slowly together. At the same time, air compressor 18 fills air tank 17 with air, and high-pressure gas enters the guide channel through connecting pipe 16. Electric heater 15 can heat the gas to enhance the cleaning effect. The heated high-pressure gas is blown through air guide groove 33 onto the inner wall of the rotating filter screen 5, forcefully peeling off and blowing away the attached impurities. Under the guidance of baffle 6 and the thrust of the gas, the blown-away impurities are discharged from discharge port 101 on the prefabricated well body 1, completing the self-cleaning process. In addition, the self-cleaning mechanism (spray ring) at detection component B12 will be activated periodically or as needed to spray high-pressure water to clean the sensor probe, ensuring the long-term accuracy of the detection data. The operating status and detection data of the entire system are transmitted to the remote monitoring center through the data storage and wireless transmission module of the intelligent controller, realizing unattended operation and intelligent management.

[0019] Example 2, as follows Figure 1 As shown, the present invention proposes a sewage diversion renovation device for old urban villages. Compared with Embodiment 1, a collection box 19 is set on the prefabricated well body 1. A material intake port is set at the top of the collection box 19, and a material inlet is set on the side of the collection box 19. The material inlet is connected to the discharge port 101. A well cover 20 is set on the collection box 19 to close the prefabricated well body 1 and the material intake port. A vent hole A2001 connected to the inside of the guide pipe 7 and a vent hole B2002 connected to the inside of the collection box 19 are set on the well cover 20. Dustproof nets are set in both the vent hole A2001 and the vent hole B2002.

[0020] In this embodiment, the collected impurities are collected using the collection box 19. When cleaning up later, simply open the manhole cover 20 and remove the impurities from the collection box 19.

[0021] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A sewage diversion and renovation device for old urban villages, characterized in that, include: A prefabricated well body (1) is provided with a discharge port (101), a support base (2) is provided inside the prefabricated well body (1), a support column (3) with a through hole A (31) is coaxially provided on the support base (2), a through hole B (32) communicating with the through hole A (31) is provided on the support column (3), and an air guide groove (33) is provided on the support column (3), and a combined water inlet pipe (9) communicating with the through hole B (32) is provided on the prefabricated well body (1); A disc (4) is set on a support column (3). A filter screen (5) is coaxially set on the disc (4). The filter screen (5) is sleeved on the arc surface of the support column (3). Several partitions (6) are arranged in a ring array around the axis of the outer wall of the filter screen (5). The partitions (6) slide in contact with the inner wall of the prefabricated well body (1). A guide pipe (7) is coaxially set on the disc (4) and rotatably connected to the support column (3). Drive assembly (8), which is mounted on support base (2) and drives guide tube (7) to rotate; An electric three-way diverter valve (11) is installed inside the prefabricated well body (1). The input end of the electric three-way diverter valve (11) is connected to the feed pipe (7). The input end of the electric three-way diverter valve (11) is equipped with a detection component B (12) for online water quality detection. The two output ends of the electric three-way diverter valve (11) are respectively connected to the rainwater pipe (13) and the sewage pipe (14). And the air blowing mechanism is installed inside the prefabricated well body (1). When the air blowing mechanism is in operation, it sends high-pressure gas into the air guide groove (33) to clear the filter screen (5) and blow out the intercepted impurities along the discharge port (101).

2. The sewage diversion renovation device for old urban villages according to claim 1, characterized in that, The outer wall of the feed tube (7) slides in contact with the inner wall of the through hole A (31). The feed tube (7) is provided with a through hole C (71) so that its internal channel is always connected to the through hole A (31) through the through hole C (71).

3. The sewage diversion renovation device for old urban villages according to claim 1, characterized in that, The upper end of the partition (6) is fixedly connected to the bottom surface of the disc (4), and the lower end of the partition (6) slides in contact with the upper surface of the support base (2).

4. The sewage diversion renovation device for old urban villages according to claim 1, characterized in that, The detection component B (12) includes a turbidity sensor for detecting the turbidity of the water, a UVCOD sensor for assessing the concentration of organic pollutants, and a flow meter B for monitoring the internal water flow status at the input of the electric three-way diverter valve (11).

5. The sewage diversion renovation device for old urban villages according to claim 1, characterized in that, A detection component A (10) for monitoring the internal water flow status is installed on the combined inlet pipe (9), and the detection component A (10) includes a flow meter A.

6. The sewage diversion renovation device for old urban villages according to claim 1, characterized in that, The air blowing mechanism includes an air storage tank (17) and an air compressor (18). The air storage tank (17) and the air compressor (18) are both installed inside the prefabricated well body (1). A flow guide channel is provided on the support base (2). An electric heater (15) is installed in the flow guide channel. The output end of the flow guide channel is connected to the air guide groove (33). The input end of the flow guide channel is connected to the output end of the air storage tank (17). The input end of the air compressor (18) is connected to the outside. The output end of the air compressor (18) is connected to the input end of the air storage tank (17).

7. A sewage diversion renovation device for old urban villages according to claim 1, characterized in that, A collection box (19) is provided on the prefabricated well body (1). A material inlet is provided at the top of the collection box (19). A material inlet is provided on the side of the collection box (19). The material inlet is connected to the discharge port (101). A well cover (20) is provided on the collection box (19) for sealing the prefabricated well body (1) and the material inlet. A vent hole A (2001) connected to the inside of the guide pipe (7) and a vent hole B (2002) connected to the inside of the collection box (19) are provided on the well cover (20).

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