A device for alleviating damage of a sliding vane of an air pump, an aerator pump set and a sewage treatment equipment

Abstract

The utility model relates to a kind of device for relieving air pump sliding vane damage, aeration pump group and sewage treatment equipment, the device for relieving air pump sliding vane damage includes: main pipeline, liquid level detector, backflow blowdown pipeline and backflow blowdown valve, liquid level detector is detachably connected with main pipeline by connecting mechanism, and its detection head extends into main pipeline;One end of backflow blowdown pipeline is communicated with main pipeline, and backflow blowdown valve is installed on backflow blowdown pipeline.The utility model has the beneficial effects of simple structure, reasonable design, which can timely remove the sewage in the main pipeline according to the actual situation, avoid the sewage backflow to the entire equipment, thereby avoiding the backflow sewage and impurities in it damaging the air pump sliding vane, ensuring the working performance and service life of the air pump, and saving cost.

Description

Technical Field

[0001] This utility model relates to the technical field of water treatment aeration equipment, specifically to a device for mitigating damage to air pump vanes, an aeration pump assembly, and wastewater treatment equipment. Background Technology

[0002] Currently, existing wastewater treatment devices typically employ a combination of contact oxidation, MBR membrane filtration, and ultraviolet disinfection to treat wastewater from ship toilets and other sources. The treated effluent meets internationally mandated discharge standards and complies with the requirements of the International Maritime Organization Environmental Committee Resolution MEPC.227(64) and international wastewater discharge standards.

[0003] The domestic sewage treatment unit is equipped with two air pumps, which have three functions: First, to supplement air to the contact oxidation tank, which is conducive to the reproduction of aerobic bacteria to degrade organic matter in domestic sewage; Second, to return the settled sludge in the sedimentation tank to the primary contact oxidation tank through the air lifting and aeration device; Third, to aerate the MBR membrane tank and flush the MBR membrane.

[0004] Although the aforementioned domestic sewage treatment device can treat sewage, it has the following drawbacks: 1. Even though the air pump outlet pipeline is equipped with a one-way valve, there is still a situation where sewage backflow causes the air pump vane to be easily damaged.

[0005] 2. The original air pump pipeline only has one check valve. If the check valve is not installed or the check valve fails, sewage may flow back into the air pump chamber through the pipeline when the pump stops. Utility Model Content

[0006] This utility model addresses the technical problems existing in the prior art by providing a device for mitigating damage to air pump vanes, an aeration pump assembly, and a wastewater treatment equipment.

[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A device for mitigating damage to the vane of an air pump includes: a main pipeline, a liquid level detector, a backflow drain pipeline, and a backflow drain valve. The liquid level detector is detachably connected to the main pipeline via a connecting mechanism, and its detection head extends into the main pipeline. One end of the backflow drain pipeline is connected to the main pipeline, and the backflow drain valve is installed on the backflow drain pipeline.

[0008] The beneficial effects of this utility model are: during operation, the liquid level detector is used to detect the liquid level of sewage in the main pipeline in real time. When the liquid level exceeds the set liquid level, the backflow drain valve can be opened in a way that can be thought of by those skilled in the art. The sewage in the main pipeline is discharged through the backflow drain pipeline, which avoids sewage entering the air pump and causing damage to the air pump vanes, thus ensuring the working performance of the air pump. In addition, the aforementioned liquid level detector is detachably connected to the main pipeline via a connecting mechanism, which facilitates the replacement of the liquid level detector, makes subsequent maintenance easier, and is highly efficient.

[0009] Based on the above scheme, the corresponding part of the main pipeline is provided with a mounting hole for the detection head of the liquid level detector to pass through.

[0010] This utility model has a simple structure and reasonable design. It can promptly drain sewage from the main pipeline according to actual conditions, preventing sewage from flowing back into the entire equipment. This avoids the backflow of sewage and impurities damaging the air pump vanes, ensuring the working performance and service life of the air pump, and saving costs.

[0011] Based on the above technical solution, the present invention can be further improved as follows.

[0012] Furthermore, the connecting mechanism includes a first connector and a second connector. The first connector is installed on the main pipeline; the second connector is installed on the liquid level detector and is detachably connected to the first connector.

[0013] The advantages of adopting the above-mentioned further solution are that the structure is simple and the design is reasonable. The liquid level detector is detachably connected to the main pipeline through the connecting mechanism by using the detachable connection between connector one and connector two, which facilitates the replacement of the liquid level detector, facilitates subsequent maintenance, and is highly efficient.

[0014] Furthermore, the first connector includes a fixing sleeve, which is installed on the main pipeline and is distributed perpendicular to the main pipeline, with both ends of the fixing sleeve being open, and the liquid level detector is located inside the fixing sleeve; the second connector includes a pressure cap, which is detachably connected to the fixing sleeve and is used to press the liquid level detector tightly.

[0015] The advantage of adopting the above-mentioned further solution is that during disassembly and assembly, the liquid level detector is located inside the fixed sleeve. At the same time, the detachable connection between the pressure cap and the fixed sleeve allows the pressure cap to press or release the liquid level detector, thereby realizing the disassembly and assembly of the liquid level detector. The operation is simple, time-saving and labor-saving.

[0016] Furthermore, the pressure cap is threadedly connected to the fixing sleeve.

[0017] The advantage of adopting the above-mentioned further solution is that during disassembly and assembly, the liquid level detector is located inside the fixed sleeve. At the same time, the threaded connection between the pressure cap and the fixed sleeve is used to achieve a detachable connection between the pressure cap and the fixed sleeve, so that the pressure cap can press or loosen the liquid level detector, thereby realizing the disassembly and assembly of the liquid level detector. The operation is simple, time-saving and labor-saving.

[0018] Furthermore, the pressure cap is provided with a wire hole through which the line connecting the liquid level detector passes.

[0019] The advantages of adopting the above-mentioned further solution are that the structure is simple and the design is reasonable. The wire hole allows the wires connected to the liquid level detector to pass through, ensuring the smooth installation of the liquid level detector.

[0020] Furthermore, the first connector includes a fixing sleeve and at least one positioning pin. The fixing sleeve is installed on the pipeline and is distributed perpendicular to the main pipeline. Both ends of the fixing sleeve are open, and the liquid level detector is located inside the fixing sleeve. The positioning pin is installed on the fixing sleeve and is distributed perpendicular to the fixing sleeve. The first connector includes at least one positioning cylinder corresponding to each positioning pin. The positioning cylinder is installed on the liquid level detector and is distributed perpendicular to the liquid level detector. The positioning pin can be inserted into or removed from the positioning cylinder to fix or release the liquid level detector.

[0021] The advantage of adopting the above-mentioned further solution is that during disassembly and assembly, the liquid level detector is located inside the fixed sleeve. At the same time, the detachable connection between the positioning pin on the fixed sleeve and the positioning cylinder on the liquid level detector is used to fix or release the liquid level detector, thereby realizing the disassembly and assembly of the liquid level detector. The operation is simple, time-saving and labor-saving.

[0022] Furthermore, a baffle is installed on the part of the positioning pin located inside the fixed sleeve, and a spring is slidably sleeved on the part of the positioning pin located inside the fixed sleeve, with the two ends of the spring abutting against the inner wall of the fixed sleeve and the baffle, respectively.

[0023] The advantages of adopting the above-mentioned further solution are that the structure is simple and the design is reasonable. During assembly, the spring naturally extends and pushes the baffle, so that one end of the positioning pin is inserted into the positioning cylinder, thereby completing the assembly of the liquid level detector. During disassembly, simply use the manual positioning pin to remove one end from the positioning cylinder, and then the liquid level detector can be removed. The operation is simple, time-saving, and labor-saving.

[0024] Furthermore, it also includes an electrical control box, and the backflow drain valve and the liquid level detector are respectively connected to the electrical control box for communication.

[0025] The beneficial effect of adopting the above-mentioned further solution is that during the operation, the liquid level detector is used to detect the liquid level of sewage in the main pipeline in real time and send the corresponding liquid level signal to the electrical control box, which then receives the corresponding liquid level signal. When the liquid level exceeds the set level, the backflow drain valve can be opened using the electrical control box. The sewage in the main pipeline is discharged through the backflow drain pipeline, preventing sewage from entering the air pump and causing damage to the air pump's vanes. This ensures the air pump's working performance and high efficiency.

[0026] This utility model also relates to an aeration pump assembly, including two air pumps, and a device for mitigating damage to the air pump vanes as described above. The main pipeline is connected to one end of a branch pipeline at the point between its end and the liquid level detector. The air outlets of the two air pumps are respectively connected to one end of the main pipeline and the other end of the branch pipeline. The other end of the main pipeline is connected to a working pipeline assembly.

[0027] The beneficial effect of adopting the above-mentioned further solution is that this utility model also provides an aeration pump set. The aeration pump set has a simple structure and reasonable design. It can discharge sewage in the main pipeline in a timely manner according to the actual situation, and avoid sewage backflow into the entire equipment. This prevents the backflow of sewage and its impurities from damaging the pump vanes, ensuring the working performance and service life of the pump, and saving costs.

[0028] This utility model also relates to a wastewater treatment device, including the aeration pump set as described above.

[0029] The beneficial effect of adopting the above-mentioned further solutions is that this utility model also provides a sewage treatment equipment. The sewage treatment equipment has a simple structure and reasonable design. It can discharge sewage in the main pipeline in a timely manner according to the actual situation, and avoid sewage backflow into the entire equipment. This prevents the backflow of sewage and its impurities from damaging the air pump vanes, ensuring the working performance and service life of the air pump, thereby ensuring the sewage treatment effect and saving costs. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the device for mitigating damage to the air pump vane in this utility model; Figure 2 This is an assembly diagram of the connecting mechanism and the liquid level detector in the first embodiment of this utility model; Figure 3 This is an assembly diagram of the second embodiment of the connecting mechanism and the liquid level detector in this utility model; Figure 4 This is a schematic diagram of the aeration pump unit in this utility model; Figure 5 This is a schematic diagram of the wastewater treatment equipment in this utility model; Figure 6 This is a circuit block diagram of the present invention.

[0031] The attached diagram lists the components represented by each number as follows: 1. Main pipe; 2. Liquid level detector; 3. Backflow drain pipe; 4. Backflow drain valve; 5. Fixing sleeve; 6. Pressure cap; 7. Wire hole; 8. Positioning pin; 9. Positioning cylinder; 10. Baffle; 11. Spring; 12. Electrical control box; 13. Air pump; 14. Branch pipe; 15. Air supply pipe one; 16. Air supply pipe two; 17. Drain pipe; 18. Check valve. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0034] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this technology based on the specific circumstances.

[0035] In the description of this application, spatial relation terms such as "below," "under," "below," "below," "above," "over," etc., are used herein to describe the relationship between one element or feature shown in the figures and other elements or features. It should be understood that, in addition to the orientation shown in the figures, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figures is flipped, an element or feature described as "below" or "under" or "below" of other elements or features will be oriented "above" other elements or features. Therefore, the exemplary terms "below" and "under" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein are interpreted accordingly.

[0036] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the present invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0037] Example 1 like Figures 1 to 6 As shown, this embodiment provides a device for mitigating damage to the air pump vane, including: a main pipeline 1, a liquid level detector 2, a backflow drain pipeline 3, and a backflow drain valve 4. The liquid level detector 2 is detachably connected to the main pipeline 1 via a connecting mechanism, and its detection head extends into the main pipeline 1. One end of the backflow drain pipeline 3 is connected to the main pipeline 1, and the backflow drain valve 4 is installed on the backflow drain pipeline 3.

[0038] During operation, the liquid level detector 2 is used to monitor the liquid level of sewage in the main pipeline 1 in real time. When the liquid level exceeds the set liquid level, the backflow drain valve 4 can be opened in a way that can be thought of by those skilled in the art. The sewage in the main pipeline 1 is discharged through the backflow drain pipe 3 to prevent sewage from entering the air pump and causing damage to the air pump vanes, thus ensuring the working performance of the air pump. In addition, the liquid level detector 2 is detachably connected to the main pipeline 1 via a connecting mechanism, which facilitates the replacement of the liquid level detector, facilitates subsequent maintenance, and is highly efficient.

[0039] Based on the above scheme, the corresponding part of the main pipeline 1 is provided with a mounting hole for the detection head of the liquid level detector 2 to pass through.

[0040] Preferably, in this embodiment, the liquid level detector 2 is preferably a liquid level electrode from the prior art.

[0041] Alternatively, the liquid level detector 2 mentioned above can also be a liquid level switch.

[0042] Alternatively, the liquid level detector 2 mentioned above can also be a liquid level gauge.

[0043] Preferably, in this embodiment, in order to facilitate the assembly of the liquid level detector 2, a section of thick pipe can be set on the corresponding part of the main pipe 1, and the liquid level detector 2 can be directly distributed on the thick pipe.

[0044] This embodiment has a simple structure and reasonable design. It can promptly remove sewage from the main pipeline according to actual conditions, preventing sewage from flowing back into the entire equipment. This avoids the backflow of sewage and its impurities from damaging the air pump vanes, ensuring the working performance and service life of the air pump, and saving costs.

[0045] Example 2 Based on Embodiment 1, in this embodiment, the connecting mechanism includes a first connector and a second connector. The first connector is installed on the main pipeline 1; the second connector is installed on the liquid level detector 2 and is detachably connected to the first connector.

[0046] The scheme has a simple structure and reasonable design. It utilizes the detachable connection between connector one and connector two to achieve the detachable connection between the liquid level detector 2 and the main pipeline 1 through the connecting mechanism. This facilitates the replacement of the liquid level detector, makes subsequent maintenance easier, and is highly efficient.

[0047] Alternatively, the aforementioned level detector 2 can also be fixedly installed on the main pipeline 1 by welding or bolting. In comparison, this method requires more time and effort to disassemble the level detector 2 and may damage it.

[0048] Alternatively, an opening can be installed at the set liquid level in main pipe 1, with a transparent observation window fixedly installed at this opening. During operation, operators can periodically observe the liquid level in main pipe 1 through the observation window. However, this solution carries a certain probability of backflow.

[0049] Example 3 Based on Example 2, such as Figure 2 As shown, in this embodiment, the first connector includes a fixing sleeve 5, which is installed on the main pipeline 1 and is distributed perpendicular to the main pipeline 1. Both ends of the fixing sleeve 5 are open, and the liquid level detector 2 is located inside the fixing sleeve 5. The second connector includes a pressure cap 6, which is detachably connected to the fixing sleeve 5 and is used to press the liquid level detector 2 tightly.

[0050] During disassembly and assembly, the liquid level detector 2 is located inside the fixed sleeve 5. At the same time, the detachable connection between the pressure cap 6 and the fixed sleeve 5 allows the pressure cap 6 to press or release the liquid level detector 2, thereby realizing the disassembly and assembly of the liquid level detector 2. The operation is simple, time-saving and labor-saving.

[0051] Preferably, in this embodiment, one end of the fixing sleeve 5 is fixedly connected to the main pipeline 1, and the pressure cap 6 is distributed at the other end of the fixing sleeve 5.

[0052] Preferably, in this embodiment, in order to further increase the stability of the liquid level detector 2 assembly, an elastic pressure column can be fixedly installed on the inner side of the pressure cap 6. After assembly, one end of the elastic pressure column is pressed tightly against the end of the liquid level detector 2.

[0053] Example 4 Based on embodiment 3, in this embodiment, the pressure cap 6 is threadedly connected to the fixing sleeve 5.

[0054] During assembly and disassembly, the liquid level detector 2 is located inside the fixed sleeve 5. At the same time, the pressure cap 6 and the fixed sleeve 5 are connected by threads to achieve a detachable connection, so that the pressure cap 6 can press or release the liquid level detector 2, thereby realizing the assembly and disassembly of the liquid level detector 2. The operation is simple, time-saving and labor-saving.

[0055] Preferably, in this embodiment, the pressure cap 6 is provided with an internal thread, and the other end of the fixing sleeve 5 is provided with an external thread, and the two are threadedly engaged.

[0056] Example 5 Based on any one of Embodiments 3 to 4, in this embodiment, the pressure cap 6 is provided with a wire hole 7 through which the line connecting the liquid level detector 2 passes.

[0057] The scheme has a simple structure and reasonable design. The wire hole 7 allows the wires connected to the liquid level detector 2 to pass through, ensuring the smooth installation of the liquid level detector 2.

[0058] Preferably, in this embodiment, the threading hole 7 is a circular hole.

[0059] Example 6 Based on Example 2, such as Figure 3 As shown, in this embodiment, the first connector includes a fixing sleeve 5 and at least one positioning pin 8. The fixing sleeve 5 is installed on the pipeline and is distributed perpendicular to the main pipeline 1. Both ends of the fixing sleeve 5 are open, and the liquid level detector 2 is located inside the fixing sleeve 5. The positioning pin 8 is installed on the fixing sleeve 5 and is distributed perpendicular to the fixing sleeve 5. The first connector includes at least one positioning cylinder 9 corresponding to each positioning pin 8. The positioning cylinder 9 is installed on the liquid level detector 2 and is distributed perpendicular to the liquid level detector 2. The positioning pin 8 can be inserted into or removed from the positioning cylinder 9 to fix or release the liquid level detector 2.

[0060] During disassembly and assembly, the liquid level detector 2 is located inside the fixed sleeve 5. At the same time, the detachable connection between the positioning pin 8 on the fixed sleeve 5 and the positioning cylinder 9 on the liquid level detector 2 is used to fix or loosen the positioning pin 8, thereby realizing the disassembly and assembly of the liquid level detector 2. The operation is simple, time-saving and labor-saving.

[0061] Preferably, in this embodiment, both ends of the positioning cylinder 9 are open.

[0062] Preferably, in this embodiment, a pair of positioning pins 8 are provided, which are distributed opposite to each other on the fixing sleeve 5; at the same time, a pair of positioning cylinders 9 are also provided, which are distributed opposite to each other on the liquid level detector 2 and correspond one-to-one with the two positioning pins 8. This scheme can further increase the assembly stability of the liquid level detector 2.

[0063] The above-described Embodiment 6 and Embodiment 3 are parallel solutions, both of which can achieve the detachable assembly of the liquid level detector 2.

[0064] Example 7 Based on embodiment 6, in this embodiment, a baffle 10 is installed on the part of the positioning pin 8 located inside the fixed sleeve 5, and a spring 11 is slidably sleeved on the part of the positioning pin 8 located inside the fixed sleeve 5, with the two ends of the spring 11 abutting against the inner wall of the fixed sleeve 5 and the baffle 10 respectively.

[0065] The scheme has a simple structure and reasonable design. During assembly, the spring 11 naturally extends and pushes the baffle 10, so that one end of the positioning pin 8 is inserted into the positioning cylinder 9, thereby completing the assembly of the liquid level detector 2. During disassembly, the positioning pin 8 can be manually removed by pushing one end of the positioning pin 8 out of the positioning cylinder 9. At this time, the liquid level detector 2 can be taken out. The operation is simple, time-saving and labor-saving.

[0066] Preferably, in this embodiment, the positioning pin 8 is a T-shaped pin, with both ends having a circular rod-like structure. This design of the positioning pin 8 is reasonable, facilitating operation and saving time and effort for workers.

[0067] Preferably, in this embodiment, the baffle 10 is a circular plate, which is coaxially fixedly sleeved on the positioning pin 8.

[0068] Example 8 Based on the above embodiments, this embodiment also includes an electrical control box 12, wherein the backflow drain valve 4 and the liquid level detector 2 are respectively connected to the electrical control box 12 for communication.

[0069] During the operation, the liquid level detector 2 is used to detect the liquid level of sewage in the main pipeline in real time and send the corresponding liquid level signal to the electrical control box 12, which receives the corresponding liquid level signal. When the liquid level exceeds the set level, the backflow drain valve 4 can be opened using the electrical control box 12. The sewage in the main pipeline 1 is discharged through the backflow drain pipeline 3, which prevents sewage from entering the air pump and causing damage to the air pump's vanes, thus ensuring the air pump's working performance and high efficiency.

[0070] Preferably, in this embodiment, the aforementioned backflow drain valve 4 and the liquid level detector 2 are respectively connected to the electrical control box 12 via wiring.

[0071] Preferably, in this embodiment, the backflow drain valve 4 is preferably a solenoid valve.

[0072] Preferably, in this embodiment, the electrical control box 12 adopts existing technology, and its specific structure and principle will not be described in detail here.

[0073] In addition, the control circuit between the electrical control box 12 and other circuits is also existing technology.

[0074] Alternatively, the electrical control box 12 can be omitted, in which case an alarm can be connected to the level detector 2. During operation, the level detector 2 is used to detect the level of sewage in the main pipeline in real time and sends the corresponding level signal to the alarm, which receives the corresponding level signal. When the liquid level exceeds the set level, the alarm will sound, promptly reminding the operator to manually open the backflow drain valve 4. In this case, the backflow drain valve 4 is preferably a manual valve.

[0075] Example 9 Based on the above embodiments, this embodiment also provides an aeration pump assembly, including two air pumps 13, and a device for mitigating damage to the air pump vanes as described above. The main pipeline 1 is connected to one end of a branch pipeline 14 at the point between its end and the liquid level detector 2. The air outlets of the two air pumps 13 are respectively connected to one end of the main pipeline 1 and the other end of the branch pipeline 14. The other end of the main pipeline 1 is connected to a working pipeline assembly.

[0076] This embodiment also provides an aeration pump set, which has a simple structure and reasonable design. It can promptly discharge sewage in the main pipeline according to actual conditions, preventing sewage from flowing back into the entire equipment. This avoids the backflow of sewage and impurities damaging the pump vanes, ensuring the working performance and service life of the pump, and saving costs.

[0077] Preferably, in this embodiment, a one-way valve 18 is fixedly installed at the air outlet of each of the two air pumps 13.

[0078] Preferably, in this embodiment, the above-mentioned working pipeline assembly includes an air supply pipe 15 and an air supply pipe 16. One end of the air supply pipe 15 is connected to the main pipeline 1, and the other end of the air supply pipe 15 extends into the fourth compartment. The air supply pipe 16 is connected to one end of the main pipeline 1, and its two ends extend into the second and fourth compartments respectively. An air vent is also provided on the air supply pipe 16, located in the third compartment. This design is reasonable and facilitates the use of the working pipeline assembly to supply air to each compartment within the wastewater treatment equipment.

[0079] In addition, the aforementioned piping assembly also includes a drain pipe 17, with both ends extending into the second and fourth compartments respectively. The portion of the drain pipe 17 located in the fourth compartment is connected to the second air supply pipe 16 via a pipeline. During sludge discharge, gas from the second air supply pipe 16 enters the drain pipe 17, discharging the sludge from the fourth compartment into the second compartment via the drain pipe 17. This scheme can create a certain reflux ratio, thereby improving effluent quality, reducing influent concentration, regulating shock load, enhancing bio-dissolution activity, and increasing the organic loading rate of contact silica (see...). Figure 5 ).

[0080] Preferably, in this embodiment, valves are installed on the first gas supply pipe 15 and the second gas supply pipe 16 respectively.

[0081] Example 10 Based on the above embodiments, this embodiment also provides a wastewater treatment device, including the aeration pump set as described above.

[0082] The wastewater treatment equipment provided in this embodiment is mainly used for treating domestic sewage.

[0083] In addition, apart from the aeration pump group, the remaining parts of the above-mentioned sewage treatment equipment all use existing technology, which will not be described in detail here.

[0084] This embodiment also provides a sewage treatment device with a simple structure and reasonable design. It can discharge sewage in the main pipeline in a timely manner according to the actual situation, avoiding sewage backflow into the entire device. This prevents the backflow of sewage and impurities from damaging the air pump vanes, ensuring the working performance and service life of the air pump, thereby ensuring the sewage treatment effect and saving costs.

[0085] The working principle of this utility model is as follows: During the operation, the liquid level detector 2 is used to detect the liquid level of sewage in the main pipeline in real time and send the corresponding liquid level signal to the electrical control box 12, which receives the corresponding liquid level signal. When the liquid level exceeds the set level, the backflow drain valve 4 can be opened using the electrical control box 12. The sewage in the main pipeline 1 is discharged through the backflow drain pipeline 3, which prevents sewage from entering the air pump and causing damage to the air pump's vanes, thus ensuring the air pump's working performance and high efficiency.

[0086] The device, aeration pump set, and sewage treatment equipment provided by this utility model for mitigating damage to air pump slide vanes have a simple structure and reasonable design. They can promptly remove sewage from the main pipeline according to actual conditions, preventing sewage from flowing back into the entire equipment. This avoids damage to the air pump slide vanes from the backflowing sewage and its impurities, ensuring the working performance and service life of the air pump, and saving costs.

[0087] While embodiments or examples of this disclosure have been described with reference to the accompanying drawings, it should be understood that the above embodiments are merely exemplary embodiments or examples, and the scope of this utility model is not limited by these embodiments or examples, but only by the granted claims and their equivalents. Various elements in the embodiments or examples may be omitted or replaced by their equivalents. Furthermore, the steps may be performed in a different order than that described in this disclosure. Further, various elements in the embodiments or examples may be combined in various ways. Importantly, as the technology evolves, many elements described herein can be replaced by equivalents that appear after this disclosure.

Claims

1. A device for mitigating damage to the sliding vanes of an air pump, characterized in that, include: The system includes a main pipeline (1), a liquid level detector (2), a backflow drain pipeline (3), and a backflow drain valve (4). The liquid level detector (2) is detachably connected to the main pipeline (1) via a connecting mechanism, and its detection head extends into the main pipeline (1). One end of the backflow drain pipeline (3) is connected to the main pipeline (1), and the backflow drain valve (4) is installed on the backflow drain pipeline (3).

2. The device for mitigating damage to the air pump vane according to claim 1, characterized in that, The connecting mechanism includes a first connector and a second connector. The first connector is installed on the main pipeline (1); the second connector is installed on the liquid level detector (2) and is detachably connected to the first connector.

3. The device for mitigating damage to the air pump vane according to claim 2, characterized in that, The first connector includes a fixing sleeve (5), which is installed on the main pipeline (1) and is distributed perpendicular to the main pipeline (1). Both ends of the fixing sleeve (5) are open, and the liquid level detector (2) is located inside the fixing sleeve (5). The second connector includes a pressure cap (6), which is detachably connected to the fixing sleeve (5) and is used to press the liquid level detector (2) tightly.

4. The device for mitigating damage to the air pump vane according to claim 3, characterized in that, The pressure cap (6) is threadedly connected to the fixing sleeve (5).

5. The device for mitigating damage to the air pump vane according to claim 3, characterized in that, The pressure cap (6) is provided with a wire hole (7) through which the line connecting the liquid level detector (2) passes.

6. The device for mitigating damage to the air pump vane according to claim 2, characterized in that, The first connector includes a fixing sleeve (5) and at least one positioning pin (8). The fixing sleeve (5) is installed on the pipeline and is distributed perpendicular to the main pipeline (1). Both ends of the fixing sleeve (5) are open. The liquid level detector (2) is located inside the fixing sleeve (5). The positioning pin (8) is installed on the fixing sleeve (5) and is distributed perpendicular to the fixing sleeve (5). The first connector includes at least one positioning cylinder (9) corresponding to the positioning pin (8). The positioning cylinder (9) is installed on the liquid level detector (2) and is distributed perpendicular to the liquid level detector (2). The positioning pin (8) can be inserted into or removed from the positioning cylinder (9) to fix or release the liquid level detector (2).

7. The device for mitigating damage to the air pump vane according to claim 6, characterized in that, A baffle (10) is installed on the part of the positioning pin (8) located inside the fixed sleeve (5), and a spring (11) is slidably sleeved on the part of the positioning pin (8) located inside the fixed sleeve (5). The two ends of the spring (11) abut against the inner wall of the fixed sleeve (5) and the baffle (10) respectively.

8. The apparatus for mitigating damage to the air pump vane according to any one of claims 1-7, characterized in that, It also includes an electrical control box (12), and the backflow drain valve (4) and the liquid level detector (2) are respectively connected to the electrical control box (12) for communication.

9. An aeration pump assembly comprising two air pumps (13), characterized in that, It also includes a device for mitigating damage to the air pump vane as described in any one of claims 1-8, wherein the main pipeline (1) is connected to one end of the branch pipeline (14) at the location between one end of the main pipeline (1) and the liquid level detector (2); the air outlets of the two air pumps (13) are respectively connected to one end of the main pipeline (1) and the other end of the branch pipeline (14); and the other end of the main pipeline (1) is connected to a working pipeline assembly.

10. A wastewater treatment device, characterized in that, Includes the aeration pump assembly as described in claim 9.

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