A wastewater treatment trench wastewater collecting device
By designing a wastewater collection device for wastewater treatment ditches, and adopting a collection box, gate assembly, and automatic control system, the problems of untimely collection of evaporating and leaking waste liquid were solved, realizing the closed collection and timely discharge of waste liquid, thus improving safety and treatment efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU REBOUND ENVIRONMENTAL TECH CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-07-10
AI Technical Summary
During wastewater treatment, when the tank is overflowing or emptied, the waste liquid is prone to volatilization or molecular escape, and the leakage cannot be collected in time, posing a safety hazard.
A wastewater collection device for wastewater treatment ditches was designed, including a collection tank, connecting flange, pump suction pipe, gate assembly, liquid level monitoring assembly and automatic control assembly. The device is automated through a PLC control system to ensure closed collection and timely discharge of waste liquid.
It enables closed-loop collection and timely discharge of waste liquid, reduces volatilization and molecule escape, improves operational safety and treatment efficiency, and reduces maintenance costs.
Smart Images

Figure CN224478538U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wastewater treatment technology, specifically a wastewater collection device for wastewater treatment ditches. Background Technology
[0002] Currently, Chinese Patent Publication No. CN118221206A discloses a gas collection device, a wastewater treatment device, and a gas collection method. The gas collection device is used to collect gas generated by an electrochemical device. The electrochemical device has an exhaust port for discharging the generated gas and includes an electrode chamber. The gas collection device includes a cylinder, a push rod, and a piston. The piston is disposed within the cylinder and forms a seal between itself and the inner wall of the cylinder. The push rod drives the piston to slide within the cylinder. The cylinder includes an inlet and an outlet, which are sealed and connected to the exhaust port of the electrochemical device.
[0003] In the wastewater treatment process, conventional emergency discharges such as bottom drains and overflows from tanks are collected and discharged through open ditches and pits. However, high-concentration organic and inorganic waste liquids are prone to volatilization or molecular escape if exposed to an open environment. If people are exposed to this environment, it can easily cause skin and respiratory damage. Therefore, the bottom drain and overflow pipes of the waste liquid collection tanks in the waste liquid collection room are not suitable for connection to ditches. In case of emergency such as pipe rupture or tank damage, ditches, pits and matching pit pumps are needed to collect and discharge the leaked liquid in a timely manner.
[0004] Therefore, this utility model provides a wastewater collection device for wastewater treatment ditches, which can keep the tank sealed when it is full or empty to prevent the evaporation or escape of waste liquid, and can collect and discharge waste liquid in a timely manner when leakage occurs in the collection room. Utility Model Content
[0005] The purpose of this utility model is to provide a wastewater collection device for wastewater treatment ditches, which solves the technical problems of waste liquid volatilization, molecule escape and leakage collection when the tank is overflowing or empty, and achieves the effect of closed collection and timely discharge of waste liquid, ensuring the safety of operators and improving the level of environmental protection.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a wastewater collection device for wastewater treatment ditches, comprising:
[0007] The collection box, as the core container, is used to collect waste liquid;
[0008] Connection flanges, including waste liquid inlet flange, pump suction port flange, exhaust port flange, tank level gauge port flange and trench level gauge base, are used to connect the bottom drain and overflow pipe of the tank, the inlet pipe of the pit pump, the waste gas collection pipe in the plant area, the tank level gauge and the trench level gauge outside the tank, respectively.
[0009] Pump suction pipe, connected to the pump suction flange and the sump pump, is used to pump out waste liquid;
[0010] The gate assembly includes a gate plate, a gate plate box, a cylinder barrel, a single-acting cylinder, a cylinder sealing cover, a gate plate sealing ring, a gate plate box sealing ring, cylinder fixing bolts, and a gate plate mounting base, used to control the channel for waste liquid to enter the collection tank.
[0011] The sealed structure allows the manually opened and closed cover to be sealed by interlocking the sealing ring and sealing hook. The gate and the gate sealing ring fit tightly together to seal the gate opening.
[0012] The liquid level monitoring component includes an in-tank liquid level gauge and an external trench liquid level gauge, which are installed through the in-tank liquid level gauge port flange and the trench liquid level gauge base, respectively, and are used to monitor the liquid level in the collection tank and the trench in real time.
[0013] Automatic control components, including a PLC control system, automatic valves, and pneumatic valves, are used to control the operation of the sump pump and single-acting cylinders.
[0014] Preferably, the collection box is connected to the bottom drain and overflow pipe of the tank via a waste liquid inlet flange, to the inlet pipe of the sump pump via a pump suction flange, to the waste gas collection pipe in the factory area via an exhaust flange, an internal level gauge is installed via an internal level gauge flange, and an external ditch level gauge is installed via a ditch level gauge base.
[0015] Preferably, in the gate assembly, the gate plate and gate plate box are fixed to the inner wall of the collection box, a single-acting cylinder is installed in the cylinder barrel, the cylinder sealing cover is fixed, the cylinder fixing bolts are connected to the gate plate mounting base, the cylinder is connected to the compressed air pipeline in the plant area, and is controlled by an automatic valve.
[0016] Preferably, the sealing structure keeps the collection tank sealed under normal conditions, preventing waste liquid from evaporating or molecules from escaping. When the tank overflows or is emptied, the waste liquid enters the collection tank through the waste liquid inlet flange. When the liquid level exceeds the set sump pump start-up level, the PLC controls the sump pump to discharge the waste liquid. When leakage occurs in the collection room, the liquid level in the ditch exceeds the set gate opening level. The PLC controls the pneumatic valve on the compressed air pipeline of the single-acting cylinder to open, the gate opens, and the leaked liquid enters the collection tank through the gate. When the liquid level in the tank exceeds the set sump pump start-up level, the PLC controls the sump pump to discharge the waste liquid.
[0017] Preferably, in the liquid level monitoring component, the in-tank liquid level gauge monitors the liquid level in the collection tank in real time, the ditch liquid level gauge monitors the liquid level in the ditch in real time, and the PLC control system automatically controls the operation of the sump pump and the single-acting cylinder according to the monitoring results.
[0018] Preferably, in the automatic control component, the PLC control system realizes the automatic collection and discharge of waste liquid through programming, thereby improving treatment efficiency and reducing manual intervention.
[0019] Preferably, the gate assembly, sealing structure, liquid level monitoring assembly, and automatic control assembly are all made of corrosion-resistant materials to adapt to the corrosiveness of the wastewater treatment environment.
[0020] Preferably, the device is also equipped with an alarm system. When the liquid level in the collection tank exceeds the set safe level, the alarm system is activated to remind the operator to handle the situation in a timely manner.
[0021] This utility model provides a wastewater collection device for wastewater treatment ditches. It has the following beneficial effects:
[0022] (1) Under normal conditions, the device of this utility model is kept sealed, effectively isolating the waste liquid from contact with the external environment and preventing the waste liquid from evaporating or molecules from escaping; when the liquid level in the ditch exceeds the set value, the device automatically opens the gate to collect the leaked liquid into the collection box, and automatically discharges the waste liquid when the liquid level reaches the set value, so as to realize the timely collection and discharge of the leaked liquid.
[0023] (2) The device of this utility model realizes automated operation through PLC control system, without the need for manual intervention, thereby improving the efficiency of wastewater treatment; it monitors the liquid level in real time and automatically controls the operation of gate and sump pump according to the liquid level change, ensuring the timeliness and accuracy of wastewater treatment.
[0024] (3) The device of this utility model avoids direct exposure of personnel to the environment of waste liquid volatilization or escape through the sealed design, reducing the risk of skin and respiratory tract damage. The automated operation reduces direct contact between personnel and waste liquid, further ensuring personnel safety. The device uses corrosion-resistant materials to extend service life and reduce maintenance costs. The alarm system provides timely warnings to prevent overflow accidents and improve overall safety performance. Attached Figure Description
[0025] Figure 1 This is an installation diagram of this utility model;
[0026] Figure 2 This is a cross-sectional view of the present invention;
[0027] Figure 3 This is a cross-sectional view of the gate in this utility model;
[0028] Figure 4This is a perspective view of the trench gate in this utility model.
[0029] In the diagram: 1. Collection tank; 2. Waste liquid inlet flange; 3. Pump suction port flange; 4. Exhaust port flange; 5. Level gauge port flange inside the tank; 6. Pump suction pipe; 7. Gate valve; 8. Manually operated cover; 9. Hinge; 10. Handle; 11. Sealing ring; 12. Sealing hook; 13. Level gauge base in the trench; 14. Gate valve box; 15. Cylinder barrel; 16. Single-acting cylinder; 17. Cylinder sealing cover; 18. Gate valve sealing ring; 19. Gate valve box sealing ring; 20. Cylinder fixing bolts; 21. Gate valve mounting base. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.
[0032] Example 1:
[0033] Addressing the existing problems of wastewater evaporation, molecule escape, and leakage collection when the tank overflows or is emptied, this utility model provides a preferred embodiment of a wastewater treatment ditch wastewater collection device, for example... Figure 1-4 As shown: A wastewater collection device for a wastewater treatment ditch, comprising:
[0034] Collection box 1, as the core container, is used to collect waste liquid;
[0035] The connecting flanges include waste liquid inlet flange 2, pump suction port flange 3, exhaust port flange 4, tank level gauge port flange 5, and trench level gauge base 13, which are used to connect the bottom drain and overflow pipe of the tank, the inlet pipe of the pit pump, the waste gas collection pipe in the plant area, the tank level gauge, and the trench level gauge outside the tank, respectively.
[0036] Pump suction pipe 6 is connected to pump suction port flange 3 and sump pump, and is used to pump out waste liquid;
[0037] The gate assembly includes a gate plate 7, a gate plate box 14, a cylinder barrel 15, a single-acting cylinder 16, a cylinder sealing cover 17, a gate plate sealing ring 18, a gate plate box sealing ring 19, a cylinder fixing bolt 20, and a gate plate mounting base 21, for controlling the channel for waste liquid to enter the collection tank 1.
[0038] The sealing structure allows the manual opening and closing cover 8 to be sealed by interlocking the sealing ring 11 and the sealing hook 12. The gate 7 and the gate sealing ring 18 are tightly fitted to seal the gate opening.
[0039] The liquid level monitoring component includes an in-tank liquid level gauge and an external trench liquid level gauge, which are installed through the in-tank liquid level gauge port flange 5 and the trench liquid level gauge base 13, respectively, and are used to monitor the liquid level in the collection tank 1 and the trench in real time.
[0040] Automatic control components, including a PLC control system, automatic valves, and pneumatic valves, are used to control the operation of the sump pump and the single-acting cylinder 16.
[0041] Example 2:
[0042] Furthermore, the collection box 1 is connected to the bottom drain and overflow pipe of the tank via the waste liquid inlet flange 2, to the inlet pipe of the sump pump via the pump suction flange 3, to the waste gas collection pipe in the plant area via the exhaust flange 4, to the internal liquid level gauge via the internal liquid level gauge flange 5, and to the external ditch liquid level gauge via the ditch liquid level gauge base 13.
[0043] Furthermore, in the gate assembly, the gate plate 7 and the gate box 14 are fixed to the inner wall of the collection box 1, the single-acting cylinder 16 is installed in the cylinder barrel 15, the cylinder sealing cover 17 is fixed, the cylinder fixing bolt 20 is connected to the gate plate mounting base 21, the cylinder is connected to the compressed air pipeline in the plant area, and is controlled by an automatic valve.
[0044] Furthermore, the sealing structure keeps the collection tank 1 sealed under normal conditions, preventing the evaporation of waste liquid or the escape of molecules. When the tank overflows or is emptied, the waste liquid enters the collection tank 1 through the waste liquid inlet flange 2. When the liquid level exceeds the set sump pump start-up level, the PLC controls the sump pump to discharge the waste liquid. When leakage occurs in the collection room, the liquid level in the ditch exceeds the set gate 7 opening level. The PLC controls the pneumatic valve on the compressed air pipeline of the single-acting cylinder 16 to open, the gate 7 opens, and the leaked liquid enters the collection tank 1 through the gate. When the liquid level in the tank exceeds the set sump pump start-up level, the PLC controls the sump pump to discharge the waste liquid.
[0045] Furthermore, in the liquid level monitoring component, the in-tank liquid level gauge monitors the liquid level in the collection tank 1 in real time, the trench liquid level gauge monitors the liquid level in the trench in real time, and the PLC control system automatically controls the operation of the pit pump and the single-acting cylinder based on the monitoring results.
[0046] Furthermore, in the automatic control components, the PLC control system realizes the automatic collection and discharge of waste liquid through programming, thereby improving treatment efficiency and reducing manual intervention.
[0047] Furthermore, the entire device is installed in a pit, with a compact structure and small footprint, making it suitable for various wastewater treatment scenarios. The device is designed for ease of maintenance, with all components being detachable for easy cleaning and replacement.
[0048] Furthermore, the gate assembly, sealing structure, liquid level monitoring assembly, and automatic control assembly are all made of corrosion-resistant materials to adapt to the corrosiveness of the wastewater treatment environment.
[0049] Furthermore, the device is also equipped with an alarm system. When the liquid level in the collection tank 1 exceeds the set safe level, the alarm system will be activated to remind the operator to handle the situation in a timely manner.
[0050] During use and installation, after fixing the equipment in the pit, connect it to the bottom drain and overflow pipe of the tank through the waste liquid inlet flange 2, connect it to the pit pump inlet pipe through the pump suction flange 3, connect it to the waste gas collection pipe in the plant area through the exhaust flange 4, install a level gauge for real-time monitoring of the liquid level inside the tank through the level gauge port flange 5 inside the tank, install a level gauge for real-time monitoring of the liquid level in the trench outside the tank through the level gauge port flange 13 inside the tank, fix the gate 7 and gate box 14 to the inner wall of the collection tank 1, install the single-acting cylinder 16 in the cylinder barrel 15, and fix the cylinder sealing cover 17. Connect the cylinder fixing bolt 20 to the gate mounting base 21 with nuts. Connect the cylinder to the compressed air pipeline in the plant area and control it through an automatic valve.
[0051] During operation, the manual opening and closing cover 8 is closed, so that the sealing ring 11 and sealing hook 12 are interlocked. Under normal conditions, there is no waste liquid in the trench, the automatic valve on the compressed air pipeline of the cylinder is closed, the single-acting cylinder 16 has no air source, the gate 7 closes the gate hole and is tightly fitted with the gate sealing ring 18, and the box is kept in a sealed state.
[0052] When the tank overflows or is emptied, the waste liquid enters the collection tank 1 through the waste liquid inlet flange 2. When the liquid level exceeds the set starting level of the sump pump, the PLC in the plant controls the sump pump to discharge the waste liquid through the pump suction flange 3 and the pump suction pipe 6.
[0053] When leakage occurs in the collection room, the liquid level in the ditch exceeds the set gate 7 opening level. The pneumatic valve on the compressed air pipeline of the single-acting cylinder 16 controlled by the PLC in the plant area opens, the single-acting cylinder 16 is connected to the air source, the gate 7 opens, and the leaked liquid enters the collection tank 1 through the gate. When the liquid level in the tank exceeds the set sump pump starting level, the sump pump controlled by the PLC in the plant area discharges the waste liquid through the pump suction flange 3 and the pump suction pipe 6.
[0054] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A wastewater collection device for a wastewater treatment ditch, characterized in that, include: Collection box (1), as the core container, is used to collect waste liquid; The connecting flanges include a waste liquid inlet flange (2), a pump suction port flange (3), an exhaust port flange (4), a tank level gauge port flange (5), and a trench level gauge base (13), which are used to connect the bottom drain and overflow pipe of the tank, the pit pump inlet pipe, the waste gas collection pipe in the plant area, the tank level gauge, and the trench level gauge outside the tank, respectively. Pump suction pipe (6) is connected to pump suction port flange (3) and sump pump for pumping out waste liquid; The gate assembly includes a gate plate (7), a gate plate box (14), a cylinder barrel (15), a single-acting cylinder (16), a cylinder sealing cover (17), a gate plate sealing ring (18), a gate plate box sealing ring (19), a cylinder fixing bolt (20), and a gate plate mounting base (21) for controlling the passage of waste liquid into the collection tank (1). The sealing structure allows the manual opening and closing cover (8) to be sealed by interlocking the sealing ring (11) and the sealing hook (12). The gate (7) and the gate sealing ring (18) are tightly fitted to seal the gate opening. The liquid level monitoring component includes an in-tank liquid level gauge and an external trench liquid level gauge, which are installed through the in-tank liquid level gauge port flange (5) and the trench liquid level gauge base (13) respectively, and are used to monitor the liquid level in the collection tank (1) and the trench in real time. Automatic control components, including a PLC control system, automatic valves and pneumatic valves, are used to control the operation of the sump pump and the single-acting cylinder (16).
2. The wastewater collection device for wastewater treatment ditches according to claim 1, characterized in that: The collection box (1) is connected to the bottom drain and overflow pipe of the tank through the waste liquid inlet flange (2), connected to the inlet pipe of the sump pump through the pump suction flange (3), connected to the waste gas collection pipe in the factory area through the exhaust port flange (4), the liquid level gauge inside the box is installed through the liquid level gauge port flange (5), and the liquid level gauge outside the box is installed through the ditch liquid level gauge base (13).
3. The wastewater collection device for wastewater treatment ditches according to claim 1, characterized in that: In the gate assembly, the gate plate (7) and the gate box (14) are fixed to the inner wall of the collection box (1), the single-acting cylinder (16) is installed in the cylinder barrel (15), the cylinder sealing cover (17) is fixed, the cylinder fixing bolt (20) is connected to the gate plate mounting base (21), the cylinder is connected to the compressed air pipeline in the plant area and controlled by an automatic valve.
4. The wastewater collection device for a wastewater treatment ditch according to claim 1, characterized in that: The sealing structure keeps the collection tank (1) sealed under normal conditions to prevent the waste liquid from evaporating or molecules from escaping. When the tank overflows or is emptied, the waste liquid enters the collection tank (1) through the waste liquid inlet flange (2). When the liquid level exceeds the set sump pump start-up level, the PLC controls the sump pump to discharge the waste liquid. When leakage occurs in the collection room, the liquid level in the ditch exceeds the set gate (7) opening level. The PLC controls the pneumatic valve on the compressed air pipeline of the single-acting cylinder (16) to open, the gate (7) opens, and the leaked liquid enters the collection tank (1) through the gate. When the liquid level in the tank exceeds the set sump pump start-up level, the PLC controls the sump pump to discharge the waste liquid.
5. The wastewater collection device for a wastewater treatment ditch according to claim 1, characterized in that: In the liquid level monitoring component, the in-tank liquid level gauge monitors the liquid level in the collection tank (1) in real time, the ditch liquid level gauge monitors the liquid level in the ditch in real time, and the PLC control system automatically controls the operation of the sump pump and the single-acting cylinder according to the monitoring results.
6. The wastewater collection device for wastewater treatment ditches according to claim 1, characterized in that: In the automatic control component, the PLC control system realizes the automatic collection and discharge of waste liquid through programming, thereby improving treatment efficiency and reducing manual intervention.
7. The wastewater collection device for wastewater treatment ditches according to claim 1, characterized in that: The gate assembly, sealing structure, liquid level monitoring assembly, and automatic control assembly are all made of corrosion-resistant materials to adapt to the corrosiveness of the wastewater treatment environment.
8. The wastewater collection device for wastewater treatment ditches according to claim 1, characterized in that: The device is also equipped with an alarm system. When the liquid level in the collection tank (1) exceeds the set safe liquid level, the alarm system will be activated to remind the operator to handle the situation in time.