Intelligent sewage interception equipment for rainwater drainage port
By designing intelligent sewage intercepting equipment for rainwater discharge outlets, using water quality monitors and liquid level gauges for real-time monitoring and control, the problem that existing equipment is difficult to accurately distinguish sewage from clean water, and precise sewage interception control is achieved, and the efficiency of rainwater discharge outlet management is improved.
Patent Information
- Application Number
- CN202421620264.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-07-10
AI Technical Summary
The existing rainwater discharge equipment is difficult to accurately distinguish between sewage and clean water, resulting in sewage that may be discharged into the water body, and clean water enters the sewage pipeline network, increasing the water inlet load of the sewage plant and diluting the water inlet concentration.
An intelligent sewage interception equipment for rainwater discharge outlets is designed, including water inlet wells, pump and valve wells, outlet wells and control cabinets. The water quality and liquid level changes are monitored through water quality monitors and liquid level meters, and the lifting pump and solenoid valve are controlled to achieve accurate distinction between sewage and clean water and sewage interception control.
Accurate sewage control of rainwater discharge ports is achieved, ensuring the correct separation of sewage and clean water, reducing the increase in the inlet load of sewage plants and the dilution of water inlet concentration, and improving the management efficiency of rainwater discharge ports.
Smart Images
Figure CN222835059U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rainwater drainage, in particular to intelligent sewage interception equipment at a rainwater outlet. Background Art
[0002] The key to treating black and odorous water bodies in urban water environment lies in the outlet. As the final discharge point of the rainwater pipe in the diversion drainage system, the rainwater outlet is an important node connecting the pipe network and natural water bodies. A healthy diversion system can realize the classified collection of sewage and rainwater, but there are cases of misconnection of rainwater and sewage pipes, sewage overflow from sewage pipes, surface runoff pollution, pipeline sedimentation pollution and other pollution misdischarges, all of which may lead to sewage discharge at the rainwater outlet.
[0003] Some of the existing rainwater outlet equipment assumes that the water discharged from the rainwater outlet on sunny days is sewage, and directly pumps the water to the sewage treatment plant through the sewage pipe. This will cause the clear water discharged on sunny days to be transported to the sewage treatment plant, increasing the water load of the sewage treatment plant and diluting the water concentration. Some of them are equipped with liquid level sensors at the rainwater outlet. When the water level reaches the position of the liquid level sensor, the valve is opened to drain the water. The drainage is controlled by the liquid level, and the water quality of rainwater and sewage cannot be judged, which easily causes sewage to be discharged into the water body and clear water to enter the sewage pipe network. Summary of the invention
[0004] In order to solve the above-mentioned problems existing in sewage interception at rainwater outlets, the utility model proposes an intelligent sewage interception device for rainwater outlets to accurately distinguish sewage from clean water and improve the accurate control of sewage interception at rainwater outlets.
[0005] In order to achieve the above-mentioned purpose, the utility model provides an intelligent sewage interception device for rainwater outlet, which is characterized by comprising an inlet well, a pump valve well, an outlet well and a control cabinet. The inlet well is connected to the rainwater inlet pipe and is connected to the pump valve well through a water outlet. A grille is arranged at the water outlet. A third liquid level gauge is arranged in the inlet well. A lifting pump, a water quality monitor and a first liquid level gauge are arranged in the pump valve well. The lifting pump is connected to the clean water outlet pipe and the sewage outlet pipe through a water pipe. The clean water outlet pipe is connected to the outlet well, and the sewage outlet pipe is connected to the sewage pipe network. A clean water solenoid valve and a sewage solenoid valve are respectively arranged on the clean water outlet pipe and the sewage outlet pipe. The outlet well is connected to the drain pipe. A second liquid is arranged in the outlet well. The pump valve well is connected with the outlet well through an overflow port, the overflow port is higher than the rainwater inlet pipe, sleeve, drain pipe and the water outlet between the inlet well and the pump valve well, the two ends of the sleeve are respectively connected with the inlet well and the outlet well, a control valve is arranged on the sleeve for controlling the water flow of the sleeve, the control cabinet is electrically connected with the lifting pump, the water quality monitor, the first liquid level gauge, the second liquid level gauge, the third liquid level gauge, the clean water solenoid valve, the sewage solenoid valve and the control valve for obtaining the monitoring data of the water quality monitor, the first liquid level gauge, the second liquid level gauge and the third liquid level gauge, and sending control instructions to the lifting pump, the clean water solenoid valve, the sewage solenoid valve and the control valve according to the monitoring data.
[0006] The intelligent sewage interception equipment for rainwater outlet provided by the utility model monitors the water quality of the pump valve well through a water quality monitor, and monitors the liquid levels of the pump valve well, the outlet well and the inlet well through the first liquid level gauge, the second liquid level gauge and the third liquid level gauge respectively; the control cabinet controls the lifting pump, the clean water solenoid valve, the sewage solenoid valve and the control valve through the monitoring data; and can more accurately distinguish between sewage and clean water without affecting the flood control and drainage of the front-end rainwater pipe network, thereby realizing precise sewage interception control; the sleeve channel prevents river water from backflowing and ensures that the flood control and drainage functions are not affected; and the overflow port ensures the emergency discharge of water in the pump valve well when equipment fails. BRIEF DESCRIPTION OF THE DRAWINGS
[0007] Figure 1 It is a longitudinal cross-sectional view of the intelligent sewage interception device for rainwater outlet;
[0008] Figure 2 for Figure 1 AA section view;
[0009] Figure 3 A top view of the intelligent sewage interception equipment for rainwater outlets with the cover of the pump and valve well removed.
[0010] The utility model is further described in detail below in conjunction with the accompanying drawings. DETAILED DESCRIPTION
[0011] See also Figure 1 The intelligent sewage interception equipment for rainwater outlet is a device installed in the rainwater drainage pipe, including a base 1, a cylinder 2 and a control cabinet 3. The base 1 is cast by concrete, and the material of the cylinder 2 is preferably glass fiber reinforced plastic. The cylinder 2 is arranged on the base 1, and the two are connected together by bolts. The cylinder 2 is divided into an inlet well 21, a pump valve well 22 and an outlet well 23 by a partition, and the pump valve well 22 is between the inlet well 21 and the outlet well. The inlet well 21 is connected to the rainwater inlet pipe 216, and the water in the rainwater inlet pipe 216 flows into the inlet well 21. The partition between the inlet well 21 and the pump valve well 22 is provided with a water inlet, and the water in the inlet well 21 flows into the pump valve well 22 through the water inlet. A grid 212 with an aperture of 50mm×50mm is arranged at the water inlet to intercept large floating objects in the inlet water. The bottom of the inlet well 21 is a slope structure, sloping toward the pump valve well 22, with a slope of 10-15°. A third level gauge 74 is provided inside the water inlet well 21. The third level gauge 74 may be an ultrasonic or static pressure level gauge, preferably a static pressure level gauge with a range of 0-5 m, for monitoring the liquid level of the water inlet well 21. Two manholes are provided at the top of the water inlet well 21, and the manholes are covered with a cover plate 215 for maintenance and removal of screen residue.
[0012] See also Figures 1 to 3Two lifting pumps 61 are arranged in the pump-valve well 22. The lifting pump 61 is connected to the clean water outlet pipe 62 and the sewage outlet pipe 63 through a water pipe. The clean water outlet pipe 62 is connected to the outlet well 23, and the sewage outlet pipe 63 is connected to the sewage pipe network. A clean water solenoid valve 64 is arranged on the clean water outlet pipe 62, and a sewage solenoid valve 65 is arranged on the sewage outlet pipe. The clean water solenoid valve 64 and the sewage solenoid valve 65 are in a normally closed state, and are controlled to be opened and closed by the control module 32 of the control cabinet 3 to control the discharge of clean water and sewage. A water quality monitor 71 and a first liquid level gauge 72 are also arranged in the pump-valve well 22. The water quality monitor 71 and the first liquid level gauge 72 are both electrically connected to the control module of the control cabinet 3. The water quality monitor 71 is used to monitor the water quality in the pump-valve well 22, and the first liquid level gauge 72 is used to monitor the liquid level change in the pump-valve well 22. The water quality monitor 71 can be a COD monitor, a conductivity meter or an ammonia nitrogen monitor. The COD monitor has a range of 0-500 mg / L, the conductivity meter has a range of 0-5000 μs / cm, and the ammonia nitrogen monitor has a range of 0-50 mg / L. In this embodiment, the water quality monitor 71 is a COD monitor. The first liquid level meter 72 can be an ultrasonic or static pressure liquid level meter, preferably a static pressure liquid level meter with a range of 0-5 m. An overflow port 20 is provided on the partition between the pump valve well 22 and the outlet well 23. The pump valve well 22 is connected to the outlet well 23 through the overflow port 20. The position of the overflow port 20 is higher than the rainwater inlet pipe 216, the sleeve 8, the drain pipe 236 and the water inlet between the inlet well 21 and the pump valve well 22. When the equipment is working, the lower edge of the overflow port 20 is slightly higher than the river flood level. A manhole is provided at the top of the pump valve well 22, and a cover plate 215 is provided on the manhole for inspection and maintenance. A check valve 66 and a gate valve 67 are provided on the water pipes connecting the lift pump 61 with the clean water outlet pipe 62 and the sewage outlet pipe 63.
[0013] The sleeve 8 penetrates the pump valve well 22, and its two ends are connected to the water inlet well 21 and the water outlet well 23 respectively. A control valve is arranged on the sleeve 8 to control the water flow of the sleeve 8. When the control valve is opened, the water in the water inlet well 21 can flow to the water outlet well 23 through the sleeve 8. When the control valve is closed, the sewage in the water inlet well 21 cannot enter the water outlet well 23 through the sleeve 8, and the sewage is intercepted. At the same time, the water in the water outlet well 23 cannot enter the water inlet well 21 through the sleeve 8, so as to prevent the water in the water outlet well 23 from flowing back. The control valve preferably includes an airbag valve 81 and an air compressor 82. The airbag valve 81 is arranged inside the sleeve 8 and installed in the sleeve 8 through a flange. The airbag valve 81 is connected to the air compressor 82 through a gas pipeline 83, and the air compressor 82 supplies air to the airbag valve 81 to control the opening and closing of the airbag valve 81. The material of the airbag valve 81 is natural rubber, and the working pressure is 0.2-0.5MPa. The air compressor 82 is electrically connected to the control cabinet 3 .
[0014] The outlet well 23 is connected to a drainage pipe 236, which is a rear rainwater inlet pipe and is arranged below the water level of the river. The water level of the river is consistent with the water level of the outlet well 23. A second liquid level gauge 73 is arranged inside the outlet well 23. The second liquid level gauge 73 can be an ultrasonic or static pressure level gauge, preferably a static pressure level gauge with a range of 0-5m, which is used to monitor the liquid level of the outlet well 23. A manhole is arranged at the top of the outlet well 23, and a cover plate 235 is provided on the manhole for inspection and maintenance.
[0015] The control cabinet 3 and the rain gauge 34 are arranged on the river bank. The rain gauge 34 is a piezoelectric rain gauge with a measuring range of 0 to 8 mm / min, which is used to judge whether it is sunny or rainy. The control cabinet 3 includes a monitoring module 31, a control module 32, an alarm module 33 and a touch screen. The monitoring module 31 is electrically connected with the rain gauge 34, the water quality monitor 71, the first liquid level gauge 72, the second liquid level gauge 73 and the third liquid level gauge 74, and is used to obtain the monitoring data of the rain gauge 34, the water quality monitor 71, the first liquid level gauge 72, the second liquid level gauge 73 and the third liquid level gauge 74. The control module 32 is electrically connected with the monitoring module 31, the lifting pump 61, the air compressor 82, the sewage solenoid valve 65 and the clean water solenoid valve 64, and is used to obtain the detection data and send control instructions to the lifting pump 61, the air compressor 82, the sewage solenoid valve 65 and the clean water solenoid valve 64 according to the detection data. The touch screen is electrically connected to the control module 32 and the monitoring module 31, and is used to display equipment information, detection data, etc., and can be touched. The alarm module is electrically connected to the monitoring module and the control module. When the lift pump, the airbag valve, the first liquid level gauge, the second liquid level gauge, the third liquid level gauge, the water quality monitoring equipment, the sewage solenoid valve or the clean water solenoid valve fails or is abnormal, the alarm module starts the alarm.
[0016] The working process of the utility model is briefly described below in conjunction with the accompanying drawings. When the rain gauge 34 detects that the rainfall is 0, it is determined to be sunny, and the airbag valve 81 is in a normally closed state. During sunny days, laundry and car washing wastewater in the community flows along the ground into the rainwater inlet, enters the water inlet well 21 through the rainwater inlet pipe 216, and then enters the pump valve well 22 through the grille 212. Large floating objects brought in by the water flow are intercepted by the grille 212. When the first liquid level meter 72 detects that the water level of the pump valve well 22 reaches the first liquid level, the first liquid level is the bottom position of the rainwater inlet pipe 216, and the water quality monitor 71 starts to monitor the water quality. When COD>50mg / L is detected, the influent is identified as sewage, and the control module 32 controls the sewage solenoid valve 65 to open, while the clean water solenoid valve 64 remains closed, and a lifting pump 61 is started to lift the sewage to the sewage network. When the water quality monitor 71 detects that COD is ≤ 50 mg / L, it is determined to be clean water. The control module 32 controls the clean water solenoid valve 64 to open, while the sewage solenoid valve 65 remains closed, and a lift pump 61 is started to lift the clean water to the outlet well 23. When the water level drops to the pump stop water level, the pump stop water level is lower than the first liquid level, and the lift pump 61 stops working. When the rain gauge 34 detects that the rainfall is greater than 0, it is determined to be a rainy day. During the initial rain, the operation mode is the same as during the sunny day mentioned above. As the duration of rainfall increases or the amount of rainfall increases, the flow of rainwater entering the rainwater inlet pipe 216 increases. When the flow is greater than the flow of a lift pump 61, the water level of the pump valve well 22 continues to rise, and the water quality of rainwater continues to improve. When the first liquid level meter 72 detects that the water level of the pump valve well 22 reaches the second liquid level, the second liquid level is the top position of the rainwater inlet pipe 216, and the water quality monitor 71 monitors the water quality again. When COD>50mg / L is detected, it is identified as sewage, the sewage solenoid valve 65 is opened, the clean water solenoid valve 64 is closed, and the second lift pump 61 is started at the same time; when COD≤50mg / L is monitored, it is identified as clean water, the clean water solenoid valve 64 is opened, the sewage solenoid valve 65 is closed, and the second lift pump 61 is started at the same time. When the water level drops to the pump stop water level, the lift pump 61 stops working. When encountering rainstorm or heavy rain, after the two lifting pumps 61 are turned on at the same time, when the rainwater flow entering the rainwater pipe 216 is greater than the flow of the two lifting pumps 61, the water level of the pump valve well 22 continues to rise. When the first liquid level meter 72 detects that the water level of the pump valve well 22 reaches the lower edge of the overflow port 20, the two lifting pumps 61 are closed, and the airbag valve 81 is opened at the same time. The water in the water inlet well 21 flows into the water outlet well 23 through the sleeve 8. At the same time, the water in the pump valve well 22 overflows from the overflow port 20 into the water outlet well 23. When the water level of the pump valve well 22 is lower than the overflow port 20, the water in the pump valve well 22 first flows back to the water inlet well 21, and then flows into the water outlet well 23 from the sleeve 8. The water in the water outlet well 23 is discharged into the river through the drainage pipe 236.The second liquid level gauge 73 and the third liquid level gauge 74 are used to monitor the changes in the liquid levels of the outlet well 23 and the inlet well 21 respectively. When the liquid levels of the outlet well 23 and the inlet well 21 are the same, the airbag valve 81 is closed to prevent river water from flowing back. After the airbag valve 81 is closed, it is basically at the end of the rain or the rain has stopped, and some rainwater is still left in the inlet well 21 and the pump valve well 22. The clean water solenoid valve 64 is opened, the sewage solenoid valve 65 is closed, and a lifting pump 61 is opened for drainage. When the water level drops to the pump stop water level, the lifting pump 61 stops working to prepare for sewage discharge on sunny days. When the lifting pump 61, the airbag valve 81, the first liquid level gauge 72, the second liquid level gauge 73, the third liquid level gauge 74, the water quality monitor 71, the sewage solenoid valve 65, and the clean water solenoid valve 64 fail, the control cabinet 3 triggers the alarm module 33 to issue a fault alarm. When the monitoring module 31 detects through the third liquid level gauge 74 and the first liquid level gauge 72 that the liquid level of the water inlet well 21 is 0.3m higher than the liquid level of the pump valve well 22, the control cabinet 3 triggers the alarm module 33 to issue a fault alarm, and the operation and maintenance personnel clean the grille 212 after receiving the alarm. When the lifting pump 61, the airbag valve 81, the sewage solenoid valve 65, and the clean water solenoid valve 64 fail to open normally, the water flows out to the water outlet well through the overflow port 20 to ensure the emergency discharge of rainwater.
[0017] The intelligent sewage interception equipment for rainwater outlet provided by the utility model monitors the water quality of the pump valve well through a water quality monitor, and monitors the liquid levels of the pump valve well, the outlet well and the inlet well through the first liquid level gauge, the second liquid level gauge and the third liquid level gauge respectively; the control cabinet controls the lifting pump, the clean water solenoid valve, the sewage solenoid valve and the control valve through the monitoring data; and can more accurately distinguish between sewage and clean water without affecting the flood control and drainage of the front-end rainwater pipe network, thereby realizing precise sewage interception control; the sleeve channel prevents river water from backflowing and ensures that the flood control and drainage functions are not affected; and the overflow port ensures the emergency discharge of water in the pump valve well when equipment fails.
Claims
1. A rainwater outlet intelligent sewage interception device, characterized in that: It includes a water inlet well, a pump-valve well, a water outlet well and a control cabinet. The water inlet well is connected to a rainwater inlet pipe and is connected to the pump-valve well through a water outlet. A grille is arranged at the water outlet. A third liquid level gauge is arranged in the water inlet well. A lifting pump, a water quality monitor and a first liquid level gauge are arranged in the pump-valve well. The lifting pump is connected to a clean water outlet pipe and a sewage outlet pipe through a water pipe. The clean water outlet pipe is connected to the water outlet well. The sewage outlet pipe is connected to a sewage pipe network. Clean water solenoid valves and sewage solenoid valves are arranged on the clean water outlet pipe and the sewage outlet pipe respectively. The water outlet well is connected to a drain pipe. A second liquid level gauge is arranged in the water outlet well. The pump-valve well is connected to the water outlet well through an overflow port. The overflow port is located higher than the rainwater inlet pipe, sleeve, drain pipe and the water outlet between the inlet well and the pump valve well. The two ends of the sleeve are connected to the inlet well and the outlet well respectively. A control valve is arranged on the sleeve to control the water flow of the sleeve. The control cabinet is electrically connected to the lifting pump, the water quality monitor, the first liquid level gauge, the second liquid level gauge, the third liquid level gauge, the clean water solenoid valve, the sewage solenoid valve and the control valve to obtain the monitoring data of the water quality monitor, the first liquid level gauge, the second liquid level gauge and the third liquid level gauge, and send control instructions to the lifting pump, the clean water solenoid valve, the sewage solenoid valve and the control valve according to the monitoring data.
2. The intelligent sewage interception device for rainwater outlet according to claim 1 is characterized in that: The control valve comprises an air bag valve and an air compressor. The air bag valve is arranged in the sleeve and connected to the air compressor through a gas pipeline. The air compressor is electrically connected to the control cabinet.
3. The intelligent sewage interception device for rainwater outlet according to claim 1 is characterized in that: It also includes a rain gauge, which is electrically connected to the control cabinet.
4. The intelligent sewage interception device for rainwater outlet according to claim 3 is characterized in that: A monitoring module and a control module are arranged in the control cabinet. The monitoring module is electrically connected to the rain gauge, the water quality monitor, the first liquid level gauge, the second liquid level gauge and the third liquid level gauge. The control module is electrically connected to the monitoring module, the lifting pump, the air compressor, the sewage solenoid valve and the clean water solenoid valve.
5. The intelligent sewage interception device for rainwater outlet according to claim 4 is characterized in that: An alarm module is arranged in the control cabinet, and the alarm module is electrically connected to the monitoring module and the control module. When the lifting pump, the airbag valve, the first liquid level gauge, the second liquid level gauge, the third liquid level gauge, the water quality monitoring equipment, the sewage solenoid valve or the clean water solenoid valve fails or is abnormal, the alarm module activates the alarm.
6. The intelligent sewage interception device for rainwater outlet according to claim 1 is characterized in that: The water quality monitor may be a COD monitor, a conductivity meter or an ammonia nitrogen monitor.
7. The intelligent sewage interception device for rainwater outlets according to any one of claims 1 to 6, characterized in that: The bottom of the water inlet well is a slope structure, sloping toward the pump valve well.
8. The intelligent sewage interception device for rainwater outlet according to claim 7 is characterized in that: It comprises a base and a cylinder, wherein the cylinder is arranged on the base and is divided into a water inlet well, a pump valve well and a water outlet well by a partition, and the pump valve well is between the water inlet well and the water outlet well.