Sewage treatment system with anti-overflow monitoring function
By introducing float switches and level sensors into the wastewater treatment system, combined with pneumatic diaphragm pumps and ball valve control, two-stage filtration and mixing treatment are achieved, solving the problems of wastewater overflow and poor purification effect, and realizing the standard discharge of wastewater and environmental protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGXI ZHENLONG IND
- Filing Date
- 2025-06-03
- Publication Date
- 2026-07-07
AI Technical Summary
Existing sewage treatment equipment lacks overflow monitoring capabilities, leading to sewage overflow into the surrounding environment and poor sewage purification, which can easily cause environmental pollution.
A wastewater treatment system with overflow monitoring function was designed. The system uses a float switch and a liquid level sensor in conjunction with a pneumatic diaphragm pump and a ball valve to control the flow of wastewater, achieving two-stage filtration and mixing treatment to ensure that the wastewater meets the discharge standards.
It effectively avoids sewage overflow, improves sewage purification, ensures that sewage meets discharge standards, reduces environmental pollution, has a wide range of applications, and is highly practical.
Smart Images

Figure CN224467560U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of printing and manufacturing technology, and in particular to a sewage treatment system with overflow prevention monitoring function. Background Technology
[0002] The production of cigarettes requires the use of corrugated cardboard boxes for packaging, which generates wastewater. To balance environmental protection and economic development, the wastewater must be treated to meet standards before discharge. Currently, the wastewater is discharged into a wastewater pond and then treated by wastewater treatment equipment. However, neither the existing wastewater treatment equipment nor the wastewater pond is equipped with overflow monitoring and control functions. Due to inadequate manual monitoring, wastewater often overflows into the surrounding environment during the pumping process, causing pollution. Furthermore, the current wastewater treatment only performs primary treatment before discharge, resulting in poor purification and easy pollution of the surrounding environment. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a sewage treatment system with overflow prevention monitoring function to avoid sewage discharge into the surrounding environment and improve sewage purification effect, in order to address the above-mentioned shortcomings of the prior art. It has the characteristics of wide applicability and strong practicality.
[0004] The technical solution adopted by this utility model is: a sewage treatment system with overflow monitoring function, including a sewage tank and a control device for controlling the operation of the entire system. The sewage tank is connected to a first pipe, and a first pneumatic diaphragm pump is connected to the first pipe. The first pneumatic diaphragm pump is connected to the sewage treatment tank through a second pipe. A float switch is provided at the top of the sewage treatment tank. A third pipe is connected to the bottom of the sewage treatment tank. A liquid level pipe is arranged perpendicularly to the third pipe. A liquid level sensor is provided on the liquid level pipe. The third pipe is connected to a second pneumatic diaphragm pump. The output end of the second pneumatic diaphragm pump is connected to a first filter. The output end of the first filter is connected to a filter storage tank. A stirring device is provided on the sewage treatment tank.
[0005] As a further improvement, the first pipe is equipped with a first ball valve and a third ball valve. The bottom of the filter storage tank is connected to the first pipe between the first ball valve and the third ball valve via a fourth pipe. The fourth pipe is equipped with a second ball valve. The second pipe is equipped with a fifth ball valve. The fifth ball valve is connected to the second pipe between the second pipe and the first pneumatic diaphragm pump via a fifth pipe. The fifth pipe is connected to a second filter. The fifth pipe is equipped with a fourth ball valve.
[0006] Furthermore, the stirring device includes a stirring motor and a stirring rod, the stirring motor is installed above the sewage treatment tank, and the output end of the stirring motor is connected to the stirring rod.
[0007] Furthermore, the control device includes changeover switches SW1, SW2, and SW3, intermediate relays KA1 and KA2, a time relay KT, solenoid valves Y1 and Y2. Changeover switches SW1, SW2, and SW3 are all installed on the operation panel of the distribution cabinet. Intermediate relays KA1, Y1, and KT are electrically connected to the first pneumatic diaphragm pump, and intermediate relays KA2 and Y2 are electrically connected to the second pneumatic diaphragm pump.
[0008] Furthermore, the intermediate relay KA2 and the time relay KT are electrically connected to the stirring motor.
[0009] Furthermore, the load terminal of the changeover switch SW1 is connected to the intermediate relay KA1, the normally open contact KA11 of the intermediate relay KA1 is connected to the solenoid valve Y1, the load terminal of the changeover switch SW2 is connected to the intermediate relay KA2, and the normally open contact KA24 of the intermediate relay KA2 is connected to the solenoid valve Y2.
[0010] Furthermore, the second filter is equipped with a drain pipe, and the drain pipe is equipped with a sixth ball valve.
[0011] Beneficial effects
[0012] Compared with the prior art, this utility model has the following advantages:
[0013] This utility model discloses a sewage treatment system with overflow monitoring function. During primary filtration of sewage, the second and fourth ball valves are closed, while the first, third, and fifth ball valves are opened. The first pneumatic diaphragm valve is activated to pump sewage from the sewage tank to the sewage treatment tank. When the liquid level in the sewage treatment tank reaches the position of the float switch or level sensor, the float switch or level sensor transmits a signal to the controller. The controller then stops the first pneumatic diaphragm valve, thus stopping sewage pumping and preventing overflow and environmental pollution. After pumping is complete, sewage treatment agents are added to the sewage treatment tank, and the stirring motor is started to drive the stirring rod for agitation. This process allows for better neutralization and treatment of wastewater. After stirring and treatment, the second pneumatic diaphragm valve is activated to pump the wastewater to the first filter for filtration. The filtered water flows into the filter storage tank for storage. The first and fifth ball valves are closed, and the second, fourth, and sixth ball valves are opened. The first pneumatic diaphragm valve is activated to pump the primary filtered water to the secondary filter for secondary filtration. The treated wastewater meets the discharge standards and is directly discharged. This completes one wastewater treatment cycle. The process is repeated. By installing a float switch and a liquid level sensor, overflow monitoring is implemented to prevent substandard wastewater discharge and environmental pollution. This system is highly practical and has a wide range of applications. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the electrical control principle of this utility model.
[0016] Among them: 1-sewage tank, 2-first pipeline, 3-first pneumatic diaphragm pump, 4-second pipeline, 5-sewage treatment tank, 6-float switch, 7-liquid level sensor, 8-third pipeline, 9-liquid level pipe, 10-second pneumatic diaphragm pump, 11-first filter, 12-filter storage tank, 13-stirring rod, 14-stirring motor, 15-first ball valve, 16-second ball valve, 17-third ball valve, 18-fourth ball valve, 19-second filter, 20-fifth ball valve, 21-sixth ball valve, 22-sewage pipe, 23-fourth pipeline, 24-fifth pipeline. Detailed Implementation
[0017] The present invention will be further described below with reference to specific embodiments shown in the accompanying drawings.
[0018] See Figure 1-2As shown, this utility model discloses a sewage treatment system with overflow monitoring function. Its features include a sewage tank 1 and a control device for controlling the operation of the entire system. A first pipe 2 is connected to the sewage tank 1, and a first pneumatic diaphragm pump 3 is connected to the first pipe 2. The first pneumatic diaphragm pump 3 is connected to a sewage treatment tank 5 via a second pipe 4. A float switch 6 is installed at the top of the sewage treatment tank 5, and a third pipe 8 is connected to the bottom of the sewage treatment tank 5. A level pipe 9 is arranged perpendicularly to the third pipe 8, and a level sensor 7 is installed on the level pipe 9. The third pipe 8 is connected to... A second pneumatic diaphragm pump 10 is provided, the output of which is connected to a first filter 11. The output of the first filter 11 is connected to a filter storage tank 12. A stirring device is provided on the sewage treatment tank 5. When performing primary filtration of sewage, the second ball valve 16 and the fourth ball valve 18 are closed, and the first ball valve 15, the third ball valve 17, and the fifth ball valve 20 are opened. The first pneumatic diaphragm valve 3 is activated to pump sewage from the sewage tank 1 to the sewage treatment tank 5. When the liquid level in the sewage treatment tank 5 reaches the position of the float switch 6 or the liquid level sensor 7, the float switch... The level sensor 6 or 7 transmits a signal to the controller, which then stops the first pneumatic diaphragm valve 3, thus stopping the pumping of sewage and preventing overflow and environmental pollution. After pumping is complete, sewage treatment agents are added to the sewage treatment tank 5, and the stirring motor 14 is started to drive the stirring rod 13 for stirring, which further neutralizes the sewage. After stirring, the second pneumatic diaphragm valve 10 is started to pump the sewage to the first filter 11 for filtration. The filtered water flows into the filter storage tank 12 for storage, and then the first ball valve 15 and the fifth ball valve 10 are closed. Ball valve 20 opens the second ball valve 16, the fourth ball valve 18, and the sixth ball valve 21, activating the first pneumatic diaphragm valve 3 to pump the primary filtered water to the secondary filter 19 for secondary filtration. The treated wastewater meets the discharge standards and is directly discharged. Compared to traditional single-stage filtration, this device effectively improves the purification effect through secondary filtration. After completing the above treatment process, one wastewater treatment cycle is completed and repeated. By installing a float switch 6 and a liquid level sensor 7, overflow monitoring is performed to prevent substandard wastewater discharge and environmental pollution.
[0019] Specifically, the first pipe 2 is equipped with a first ball valve 15 and a third ball valve 17. The bottom of the filter storage tank 12 is connected to the first pipe 2 between the first ball valve 15 and the third ball valve 17 via a fourth pipe 23. The fourth pipe 23 is equipped with a second ball valve 16, and the second pipe 4 is equipped with a fifth ball valve 20. The fifth ball valve 20 is connected to the second pipe 4 between the second pipe 4 and the first pneumatic diaphragm pump 3 via a fifth pipe 24. The fifth pipe 24 is connected to a second filter 19, and the fifth pipe 24 is equipped with a fourth ball valve 18. By using the ball valves on the pipes, the flow direction of sewage can be effectively controlled, thereby achieving two-stage filtration and effectively improving the purification effect.
[0020] Preferably, the stirring device includes a stirring motor 14 and a stirring rod 13. The stirring motor 14 is installed above the sewage treatment tank 5, and the output end of the stirring motor 14 is connected to the stirring rod 13. When the stirring motor 14 is started, the stirring rod 13 is driven to perform stirring, so that the sewage treatment agent can better neutralize and treat the sewage and improve the purification effect.
[0021] Furthermore, the control device includes changeover switches SW1, SW2, and SW3, intermediate relays KA1 and KA2, a time relay KT, solenoid valves Y1 and Y2. Changeover switches SW1, SW2, and SW3 are all installed on the operation panel of the distribution cabinet. Intermediate relays KA1, Y1, and KT are electrically connected to the first pneumatic diaphragm pump 3. Intermediate relays KA2 and Y2 are electrically connected to the second pneumatic diaphragm pump 10. Intermediate relays KA2 and KT are electrically connected to the stirring motor 14. The load end of changeover switch SW1 is connected to intermediate relay KA1. The normally open contact KA11 of intermediate relay KA1 is connected to solenoid valve Y1. The load end of changeover switch SW2 is connected to intermediate relay KA2. The normally open contact KA24 of intermediate relay KA2 is connected to solenoid valve Y2.
[0022] like Figure 2 As shown, in this example, the control implementation steps of this device are as follows:
[0023] (i) When the changeover switch SW1 is set to the "2" position, the device enters the working state.
[0024] (ii) When the changeover switch SW1 is set to position “2”, the intermediate relay KA1 is energized and closed, the contact KA11 is closed, the solenoid valve Y1 is working, the first pneumatic diaphragm pump 3 is working, and the sewage in the sewage tank 1 is pumped to the sewage treatment tank 5, while the chemicals are added for treatment.
[0025] (III) Under the conditions of (II), the time relay KT is delayed and the contact KT is closed, the AC contactor KM is activated and self-locked through the contact KM, and the stirring motor works.
[0026] (iv) When the liquid level in the sewage treatment tank 5 reaches the position of the float of the float switch 6 or the liquid level sensor 7, the float switch 6 or the liquid level sensor 7 will activate, or the float switch 6 and the liquid level sensor 7 will activate simultaneously. The intermediate relay KA1, the solenoid valve Y1, and the time relay KT will be de-energized at the same time, and the first pneumatic diaphragm valve 3 will stop working, that is, stop pumping sewage, thus avoiding sewage overflow and environmental pollution.
[0027] (v) After the agreed processing time, the sewage treatment tank 5 completes the sewage treatment. Turn the changeover switch SW2 to the "2" position, solenoid valve Y2 is energized and drives the second pneumatic diaphragm valve 10 to work, pumping the treated sewage to the first filter 11 for filtration.
[0028] (vi) After the first stage of filtration is completed, the selector switch SW3 is set to position "2". The intermediate relay KA2 is energized and engaged, contact KA21 closes, solenoid valve Y1 operates, and the first pneumatic diaphragm valve 3 operates to draw water from the filtration storage tank 12 to the second filter 19 for filtration and discharge after meeting the standards. At this time, contacts KA22, KA23, and KA24 are disconnected, and the stirring motor 14 and the second pneumatic diaphragm valve 10 stop working.
[0029] Once the above treatment process is completed, one sewage treatment cycle is finished. This process can be repeated repeatedly, effectively solving the problem of sewage overflowing from underground sewage storage tanks and being discharged into the surrounding environment, causing environmental pollution.
[0030] Furthermore, the second filter 19 is equipped with a drain pipe 22, and the drain pipe 22 is equipped with a sixth ball valve 21. By opening the sixth ball valve 21, the sewage filtered by the second filter 19 can be discharged smoothly.
[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present utility model. These modifications and improvements will not affect the effectiveness of the present utility model or the practicality of the patent.
Claims
1. A wastewater treatment system with overflow prevention monitoring function, characterized in that, The system includes a sewage tank (1) and a control device for controlling the operation of the entire system. The sewage tank (1) is connected to a first pipe (2), and the first pipe (2) is connected to a first pneumatic diaphragm pump (3). The first pneumatic diaphragm pump (3) is connected to a sewage treatment tank (5) through a second pipe (4). The sewage treatment tank (5) is equipped with a float switch (6) at the top. The sewage treatment tank (5) is connected to a third pipe (8) at the bottom. The third pipe (8) is equipped with a level pipe (9) arranged perpendicular to it. The level pipe (9) is equipped with a level sensor (7). The third pipe (8) is connected to a second pneumatic diaphragm pump (10). The output end of the second pneumatic diaphragm pump (10) is connected to a first filter (11). The output end of the first filter (11) is connected to a filter storage tank (12). The sewage treatment tank (5) is equipped with a stirring device.
2. A sewage treatment system with overflow monitoring function according to claim 1, characterized in that, The first pipe (2) is equipped with a first ball valve (15) and a third ball valve (17). The bottom of the filter storage tank (12) is connected to the first pipe (2) between the first ball valve (15) and the third ball valve (17) through a fourth pipe (23). The fourth pipe (23) is equipped with a second ball valve (16). The second pipe (4) is equipped with a fifth ball valve (20). The fifth ball valve (20) is connected to the second pipe (4) between the first pneumatic diaphragm pump (3) via a fifth pipe (24). The fifth pipe (24) is connected to a second filter (19). The fifth pipe (24) is equipped with a fourth ball valve (18).
3. A sewage treatment system with overflow monitoring function according to claim 1, characterized in that, The stirring device includes a stirring motor (14) and a stirring rod (13). The stirring motor (14) is installed above the sewage treatment tank (5), and the output end of the stirring motor (14) is connected to the stirring rod (13).
4. A sewage treatment system with overflow monitoring function according to claim 3, characterized in that, The control device includes changeover switches SW1, SW2, and SW3, intermediate relays KA1 and KA2, time relay KT, AC contactor KM, solenoid valve Y1, and solenoid valve Y2. Changeover switches SW1, SW2, and SW3 are all installed on the operation panel of the distribution cabinet. Intermediate relays KA1, Y1, and KT are electrically connected to the first pneumatic diaphragm pump (3), and intermediate relays KA2 and Y2 are electrically connected to the second pneumatic diaphragm pump (10).
5. A sewage treatment system with overflow monitoring function according to claim 4, characterized in that, The intermediate relay KA2, time relay KT, and AC contactor KM are electrically connected to the stirring motor (14).
6. A sewage treatment system with overflow monitoring function according to claim 4, characterized in that, The load terminal of the changeover switch SW1 is connected to the intermediate relay KA1, and the normally open contact KA11 of the intermediate relay KA1 is connected to the solenoid valve Y1. The load terminal of the changeover switch SW2 is connected to the intermediate relay KA2, and the normally open contact KA24 of the intermediate relay KA2 is connected to the solenoid valve Y2.
7. A sewage treatment system with overflow monitoring function according to claim 2, characterized in that, The second filter (19) is provided with a drain pipe (22), and the drain pipe (22) is provided with a sixth ball valve (21).