Buried sewage pool

Abstract

The utility model discloses a buried sewage pool which comprises a squeezed sewage pool, a clean sewage pool, a laboratory sewage pool, a biochemical pool, a plurality of water level electrode assemblies, a plurality of submersible pumps, a power supply module, a controller and a contact switch, the squeezing sewage pool, the clean sewage pool and the laboratory sewage pool are buried underground; and submersible pumps and water level electrode assemblies are respectively arranged in the squeezing sewage pool, the clean sewage pool and the laboratory sewage pool. The device can improve the reliability of liquid level measurement of the water pump and reduce the fault occurrence frequency under the condition of ensuring normal discharge of sewage in each buried sewage collection pool, is convenient to overhaul, disassemble and assemble, and eliminates the safety risk of working personnel in a limited space.

Description

Technical Field

[0001] This application relates to the field of sugar production technology, and in particular to a buried sewage tank. Background Technology

[0002] The sugar factory's laboratory and the pressing and cleaning workshops of the production line generate wastewater daily during the crushing season. This wastewater must be treated and meet environmental protection requirements before it can be discharged.

[0003] Wastewater from the above-mentioned environments is mainly collected in buried wastewater collection tanks for separate recycling and treatment. Submersible pumps are installed in each tank. Laboratory wastewater is transported to the cleanroom wastewater collection tank, where it is treated together with other production wastewater through the end-of-pipe wastewater treatment system before being discharged or recycled. Wastewater from the pressing and cleaning workshops is collected in smaller wastewater tanks.

[0004] Existing submersible pumps use float controllers to control their start and stop based on the sewage level in each sewage tank. However, the capacity of existing underground sewage collection tanks (ponds) is relatively small, leading to frequent pump start-ups and shutdowns, and frequent float controller malfunctions. The operating space inside underground sewage collection tanks and sewage ponds is limited, making troubleshooting and equipment maintenance confined space operations, posing safety risks such as exposure to harmful gases or electric shock. Furthermore, if the float controllers are not repaired promptly, sewage overflow can pollute the surrounding environment, or the pumps may run dry after the sewage has been pumped out, causing the pump motor to overheat and burn out due to lack of water.

[0005] The frequent routine maintenance of sewage pumps impacts manpower and time, and can even disrupt other tasks.

[0006] The information disclosed in the background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that such information constitutes prior art known to those skilled in the art. Utility Model Content

[0007] This application provides a buried sewage tank to address the above-mentioned technical problems. The sewage tank is easy to maintain, quick to disassemble and assemble, has a low failure frequency, and can accurately measure the sewage level in the buried sewage tank.

[0008] This application provides a buried sewage tank, including: a press sewage tank, a clean sewage tank, a laboratory sewage tank, a biochemical tank, multiple water level electrode assemblies, multiple submersible pumps, a power supply module, a controller, and a contact switch;

[0009] The wastewater ponds for pressing, cleaning, and laboratory wastewater are buried underground.

[0010] Submersible pumps and water level electrode assemblies are installed in the press wastewater tank, the clean wastewater tank, and the laboratory wastewater tank, respectively.

[0011] The submersible pump in the wastewater tank is connected to the pipeline of the clean wastewater tank; the submersible pump in the laboratory wastewater tank is connected to the pipeline of the clean wastewater tank; the submersible pump in the clean wastewater tank is connected to the pipeline of the biochemical tank.

[0012] The power supply module is electrically connected to the controller and the contact switch respectively; the controller is electrically connected to the water level electrode assembly and the contact switch; the contact switch is electrically connected to the submersible pump.

[0013] Preferably, it includes: a manual / automatic transfer switch; the manual / automatic transfer switch is electrically connected to the power supply module and the contact switch respectively.

[0014] Preferably, it includes: a mounting frame; the mounting frame is installed on the inner wall of each pool; and the water level electrode assembly is inserted and installed on the mounting frame.

[0015] Preferably, the mounting bracket includes: a mounting plate, a frame plate, and multiple stepped holes;

[0016] The mounting plate is detached and installed onto the inner wall of the pool using a bolt assembly;

[0017] One end of the frame panel is connected to the top side wall of the mounting plate;

[0018] Multiple stepped holes are spaced apart on the frame plate;

[0019] The water level electrode assembly is inserted into the stepped hole.

[0020] Preferably, the water level electrode assembly includes: a high water level electrode, a low water level electrode, and a grounding electrode; the length of the grounding electrode is greater than the length of the low water level electrode, which is greater than the length of the high water level electrode.

[0021] Preferably, it includes: multiple control electrical boxes; the control electrical boxes are installed above the press wastewater tank, the clean wastewater tank, and the laboratory wastewater tank; the power supply module, controller, and contact switch are housed inside the control electrical boxes.

[0022] Preferably, it includes: a submersible pump for pressing; the submersible pump for pressing is installed in the wastewater tank for pressing; the submersible pump for pressing is connected to the clean wastewater tank via pipeline.

[0023] Preferably, it includes: a submersible cleaning pump; the submersible cleaning pump is installed inside the wastewater cleaning tank; the submersible cleaning pump is connected to the biological treatment tank via pipeline.

[0024] Preferably, it includes: a laboratory submersible pump; the laboratory submersible pump is housed in a laboratory sewage tank and connected to the biochemical tank pipeline.

[0025] The beneficial effects that this application can produce include:

[0026] 1) The buried sewage tank provided in this application can improve the reliability of water pump level measurement and reduce the frequency of failures while ensuring the normal discharge of sewage from each buried sewage collection tank. It also facilitates maintenance and disassembly, eliminating safety risks for workers operating in confined spaces. This eliminates environmental and safety risks, ensures normal production operations, improves the working environment for employees and staff, and achieves the effect of safely and efficiently transporting sewage to the biodegradation tank for treatment. Attached Figure Description

[0027] Figure 1 A schematic diagram of a buried sewage tank in at least one embodiment provided in this application;

[0028] Figure 2 A schematic diagram of the mounting bracket in at least one embodiment provided in this application;

[0029] Figure 3 A schematic diagram of the module structure in at least one embodiment provided in this application;

[0030] Legend:

[0031] 1. Press wastewater tank; 12. Press submersible pump; 2. Clean wastewater tank; 21. Clean submersible pump; 3. Laboratory wastewater tank; 31. Laboratory submersible pump; 11. Mounting bracket; 41. High water level electrode; 42. Low water level electrode; 43. Grounding electrode; 411. Control electrical box; 412. Power supply module; 413. Controller; 414. Contact switch; 415. Manual / automatic selector switch; 5. Biochemical tank; 111. Mounting plate; 112. Threaded mounting hole; 113. Frame plate; 114. Step hole. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0034] The controller used in this implementation scheme is an existing structure, and the control circuit can be implemented using conventional equipment in the field. It is common knowledge in the field, and it is only used without modification. Therefore, the control method and circuit connection will not be described in detail.

[0035] Technical means not detailed in this application and not used to solve the technical problems of this application are all set according to common general knowledge in the field, and multiple common general knowledge setting methods can be implemented.

[0036] See Figures 1-3 The buried sewage tank provided in this application includes: a press sewage tank 1, a clean sewage tank 2, a laboratory sewage tank 3, and a biochemical tank 5 buried underground; water level electrode assemblies are installed on the inner walls of the press sewage tank 1, the clean sewage tank 2, and the laboratory sewage tank 3; each submersible pump is respectively housed in the press sewage tank 1, the clean sewage tank 2, and the laboratory sewage tank 3, and is electrically connected to a contact switch 414; the contact switch 414 is electrically connected to a power supply module 412; the contact switch 414 is electrically connected to a controller 413; and the controller 413 is electrically connected to the water level electrode assembly.

[0037] This setting enables each submersible pump to start draining water based on the water level measured by its internal water level electrode assembly.

[0038] The submersible pumps in the wastewater pressing tank 1 and the laboratory wastewater tank 3 are connected to the pipeline of the clean wastewater tank 2. The submersible pump in the clean wastewater tank 2 is connected to the pipeline of the biochemical tank 5. When the wastewater level in the wastewater pressing tank 1 and the laboratory wastewater tank 3 rises, the wastewater is pumped into the clean wastewater tank 2 for buffering. When the wastewater level in the clean wastewater tank 2 reaches the discharge requirement, it is discharged into the biochemical tank 5 by the submersible pump. This ensures timely discharge of water from each buried wastewater tank, preventing wastewater overflow or the submersible pumps from running dry.

[0039] In one specific embodiment, the controller 413 is a commercially available fully automatic water level controller with water shortage protection; it is electrically connected to the water level electrode assembly via a cable. Specifically, it is a fully automatic water level controller with water shortage protection manufactured by Shanghai Zhuoyi Electronics Co., Ltd., model ZYY09-B.

[0040] In one specific embodiment, the contact switch 414 is a commercially available contact switch, such as the CHNT-CJT1-20 contact switch manufactured by Zhejiang Chint Electric Co., Ltd.

[0041] In one specific embodiment, it includes: a manual / automatic selector switch 415; the manual / automatic selector switch 415 is electrically connected to the power supply module and the contact switch 414 respectively, so as to realize the manual shutdown of the submersible pump to prevent the submersible pump from running dry when the contact switch 414 fails.

[0042] In one specific embodiment, it includes: a mounting frame 11; the water level electrode assembly is mounted on the pool wall via the mounting frame 11.

[0043] In one specific embodiment, the mounting frame 11 includes: a mounting plate 111, threaded mounting holes 112, a frame plate 113, and stepped holes 114; the mounting plate 111 is mounted on the inner wall of the pool; bolt assemblies are mounted on the threaded mounting holes 112 and detachably connected to the inner wall of the pool; one end of the frame plate 113 is connected to the top of the mounting plate 111, and the other end extends outward perpendicularly to the mounting plate 111; multiple stepped holes 114 are spaced apart on the frame plate 113; water level electrode assemblies are inserted into the stepped holes 114. This arrangement facilitates timely replacement of each water level electrode assembly, is simple to operate, and is suitable for operation in confined underground spaces.

[0044] In one specific embodiment, the water level electrode assembly includes: a high water level electrode 41, a low water level electrode 42, and a grounding electrode 43; the length of the grounding electrode 43 is greater than the length of the low water level electrode 42, which is greater than the length of the high water level electrode 41; the extension end of the high water level electrode 41 is positioned at the high liquid level surface. When the liquid level in the pool is higher than the high water level electrode 41, the submersible pump is activated to pump out the sewage from the pool to prevent overflow; when the water level in the pool is lower than the extension end of the low water level electrode 42, the submersible pump stops pumping water to prevent the submersible pump from running dry and burning out; when the water level in the pool is between the low water level electrode 42 and the high water level electrode 41, the submersible pump is in the on state. After the high water level electrode 41 and the low water level electrode 42 obtain the liquid level information, the controller 413 triggers or closes the contact switch 414 to control the opening and closing of the submersible pump.

[0045] In one specific embodiment, the system includes: multiple control electrical boxes 411; the control electrical boxes 411 are disposed above each pool body; a power supply module 412, a controller 413, a contact switch 414, and a manual / automatic selector switch 415 are housed within the control electrical boxes 411. This arrangement facilitates the protection of each module.

[0046] In one specific embodiment, the connecting cables for the power supply module 412, controller 413, contact switch 414, manual / automatic switch 415, and water level electrode assembly are all waterproof cables to ensure normal installation and power supply.

[0047] In one specific embodiment, a submersible pump 12 is installed at the bottom of the wastewater pressing tank 1; the submersible pump 12 is connected to the clean wastewater tank 2 via pipeline; a laboratory submersible pump 31 is installed at the bottom of the laboratory wastewater tank 3; the laboratory submersible pump 31 is connected to the clean wastewater tank 2 via pipeline; a clean submersible pump 21 is installed at the bottom of the clean wastewater tank 2; the clean submersible pump 21 is connected to the biochemical tank 5 via pipeline.

[0048] Example

[0049] During the 2022 maintenance period, the Instrumentation and Control Department upgraded the wastewater pumps in the wastewater collection tanks of the laboratory and the pressing and cleaning workshops of the production line with automatic level control. Since its commissioning in the 2022 / 2023 crushing season, the automatic control system has been operating normally, effectively solving the problem of wastewater treatment in the laboratory and the pressing and cleaning workshops. Furthermore, the automation control technology has reduced manual operation, improved the efficiency and accuracy of wastewater treatment, and reduced related safety risks. The project has achieved its expected results.

[0050] Although the present invention 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 the present invention should be included within the protection scope of the present invention.

Claims

1. A buried sewage tank, characterized in that, include: Sewage tank (1), clean sewage tank (2), laboratory sewage tank (3), biochemical tank (5), multiple water level electrode assembly, multiple submersible pumps, power supply module (412), controller (413), contact switch (414); The wastewater tank (1), the clean wastewater tank (2), and the laboratory wastewater tank (3) are buried underground; Submersible pumps and water level electrode assemblies are respectively installed in the press wastewater tank (1), the clean wastewater tank (2), and the laboratory wastewater tank (3); The submersible pump in the wastewater tank (1) is connected to the pipeline of the clean wastewater tank (2); the submersible pump in the laboratory wastewater tank (3) is connected to the pipeline of the clean wastewater tank (2); the submersible pump in the clean wastewater tank (2) is connected to the pipeline of the biochemical tank (5); The power supply module (412) is electrically connected to the controller (413) and the contact switch (414) respectively; the controller (413) is electrically connected to the water level electrode assembly and the contact switch (414); the contact switch (414) is electrically connected to the submersible pump.

2. The buried sewage tank according to claim 1, characterized in that, include: Manual / automatic transfer switch (415); the manual / automatic transfer switch (415) is electrically connected to the power supply module (412) and the contact switch (414) respectively.

3. The buried sewage tank according to claim 1, characterized in that, include: Mounting bracket (11); Mounting bracket (11) is installed on the inner wall of each pool; Water level electrode assembly is inserted and installed on mounting bracket (11).

4. The buried sewage tank according to claim 3, characterized in that, The mounting bracket (11) includes: a mounting plate (111), a frame plate (113), and multiple step holes (114); The mounting plate (111) is detached and installed on the inner wall of the pool via bolt assembly; One end of the frame plate (113) is connected to the top side wall of the mounting plate (111); Multiple stepped holes (114) are provided at intervals on the frame plate (113); The water level electrode assembly is inserted into the stepped hole (114).

5. The buried sewage tank according to claim 1, characterized in that, The water level electrode assembly includes: a high water level electrode (41), a low water level electrode (42), and a grounding electrode (43); the length of the grounding electrode (43) is greater than the length of the low water level electrode (42) and the length of the high water level electrode (41).

6. The buried sewage tank according to claim 1, characterized in that, include: Multiple control electrical boxes (411); the control electrical boxes (411) are located above the press wastewater tank (1), the clean wastewater tank (2), and the laboratory wastewater tank (3); the power supply module (412), the controller (413), and the contact switch (414) are housed in the control electrical boxes (411).

7. The buried sewage tank according to claim 1, characterized in that, include: A submersible press pump (12) is installed in the sewage tank (1); the submersible press pump (12) is connected to the clean sewage tank (2) by pipeline.

8. The buried sewage tank according to claim 1, characterized in that, include: Cleaning submersible pump (21); the cleaning sewage tank (2) contains the cleaning submersible pump (21); the cleaning submersible pump (21) is connected to the biochemical tank (5) by pipeline.

9. The buried sewage tank according to claim 1, characterized in that, include: Laboratory submersible pump (31); The laboratory submersible pump (31) is housed in the laboratory sewage tank (3) and connected to the pipeline of the biochemical tank (5).

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