Anti-backflow sewage treatment aeration equipment

Abstract

The utility model discloses anti-backflow sewage treatment aeration equipment which comprises a first round pipe, a plurality of aeration holes are formed in the circumferential outer wall of the first round pipe, the two ends of the first round pipe are fixedly connected with a front end cover and a rear end cover respectively, a second round pipe is arranged in the first round pipe, and the front end cover and the rear end cover are fixedly connected with the first round pipe. A plurality of air channels are formed in the outer wall of the circumference of the second round pipe and communicated with the aeration holes, first air outlet holes are formed in the middle positions of the air channels, a third round pipe is arranged in the second round pipe, a plurality of second air outlet holes are formed in the outer side of the third round pipe, and the first air outlet holes can be communicated with the second air outlet holes. According to the aeration device, the air channel and the second air outlet hole can be automatically blocked when the aeration device is not used, backflow is avoided, meanwhile, the ball can move in the required direction through the guide groove, and the third round pipe can be guided through the guide rod.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a wastewater treatment aeration device that prevents backflow. Background Technology

[0002] In wastewater treatment, aeration equipment plays an important role in many ways, such as increasing oxygen content, improving water flow, and improving the structure of microbial communities, thereby improving water purification effect and treatment efficiency.

[0003] Existing aeration equipment can only prevent backflow by the self-closing of the aeration membrane when not in use. However, after a period of use, the aeration membrane will age, leading to backflow, which in turn will cause blockage of the aeration device and affect its subsequent use. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a backflow-preventing aeration device for wastewater treatment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A backflow-preventing aeration device for sewage treatment includes a first circular pipe with multiple aeration holes on its outer circumference. A front end cap and a rear end cap are fixedly connected to both ends of the first circular pipe. A second circular pipe is located inside the first circular pipe, with multiple air passages on its outer circumference that communicate with the aeration holes. A first air outlet is located at the center of each of the multiple air passages. A third circular pipe is located inside the second circular pipe, with multiple second air outlets on its outer side, and the first air outlets can communicate with the second air outlets. The third circular pipe is slidably connected to the front end cap. A clearance groove is located on one side of the rear end cap, and a spring is fixedly connected to one side of the clearance groove and fixed to the third circular pipe. A connecting assembly for rotating the second circular pipe is located on the outer side of the third circular pipe.

[0007] As a further embodiment of this utility model, the connecting component includes multiple rolling grooves, which are formed on the outer circumference of the third circular tube. Rolling balls roll in each of the multiple rolling grooves, and multiple guide grooves are formed on the inner circumference of the second circular tube.

[0008] As a further improvement of this invention, the ball is slidably connected to the guide groove.

[0009] As a further embodiment of this utility model, a plurality of guide rods are fixedly connected to one side of the outer wall of the rear end cover.

[0010] As a further embodiment of this utility model, a plurality of sliding grooves are provided inside one end of the third circular tube, and the guide rod is slidably connected to the sliding grooves.

[0011] As a further embodiment of this invention, the outer circumferential wall of the second circular tube is in contact with the inner circumferential wall of the first circular tube.

[0012] As a further embodiment of this invention, the second round tube is rotatably connected to the front end cover and the rear end cover.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This utility model not only enables the aeration device to perform stable aeration, but also enables the aeration device to automatically block the air passage and the second air outlet when not in use, thereby preventing backflow when the device is not in use and avoiding backflow caused by the aging of the aeration membrane, thus improving the device's performance.

[0015] 2. In this utility model, the ball bearings are guided by the cooperation of the ball bearings and the guide groove, so that the ball bearings can move in the required direction, thereby improving the stability of the ball bearing movement.

[0016] 3. This utility model guides the third circular tube with a guide rod, enabling it to move horizontally stably and preventing the third circular tube from tilting during movement, thus improving the guiding effect of the device. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the front side of a wastewater treatment aeration device for preventing backflow, as proposed in this utility model.

[0018] Figure 2 This is a schematic diagram of the overall disassembled structure of a sewage treatment aeration device for preventing backflow, as proposed in this utility model.

[0019] Figure 3 This is an enlarged structural diagram of the rear end cover of a sewage treatment aeration device for preventing backflow, as proposed in this utility model.

[0020] Figure 4 This is a schematic cross-sectional view of the second circular pipe of a wastewater treatment aeration device for preventing backflow, as proposed in this utility model.

[0021] In the diagram: 1. Front end cap; 2. First round tube; 3. Second round tube; 4. First air outlet; 5. Air passage; 6. Rear end cap; 7. Second air outlet; 8. Third round tube; 9. Guide rod; 10. Spring; 11. Alternating groove; 12. Guide groove; 13. Ball bearing; 14. Rolling groove; 15. Sliding groove; 16. Aeration hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. The described embodiments are only some embodiments of the present utility model, not all embodiments. Other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are all within the protection scope of the present utility model.

[0023] Reference Figures 1-4 A backflow-preventing aeration device for sewage treatment includes a first circular pipe 2. Multiple aeration holes 16 are formed on the outer circumference of the first circular pipe 2. A front end cap 1 and a rear end cap 6 are respectively fixed to both ends of the first circular pipe 2 by bolts. A second circular pipe 3 is located inside the first circular pipe 2. Multiple air passages 5 are formed on the outer circumference of the second circular pipe 3, and the air passages 5 are connected to the aeration holes 16. A first air outlet 4 is formed at the middle position of each of the multiple air passages 5. A third circular pipe 8 is located inside the second circular pipe 3. The front end cap 1 is connected to an external air outlet pipe, allowing externally blown gas to enter the third circular pipe 8 through the front end cap 1. Multiple second air outlets 7 are formed on the outer side of the third circular pipe 8, and the first air outlets 4 can be connected to the second air outlets 7. The third circular pipe 8 is slidably connected to the front end cap 1. A clearance groove 11 is formed on one side of the rear end cap 6, and a spring 10 is welded to one side of the clearance groove 11. The spring 10 is connected to the third circular pipe. The third circular tube 8 is fixed in phase 8. A connecting component is provided on the outside of the third circular tube 8 to drive the second circular tube 3 to rotate. The gas blown out by the external device enters the third circular tube 8. At this time, the third circular tube 8 moves horizontally and the spring 10 contracts. At the same time, the movement of the third circular tube 8 causes the second air outlet 7 to rotate and connect with the first air outlet 4 through the connecting component. Thus, the gas in the third circular tube 8 is discharged through the second air outlet 7 and the first air outlet 4 in sequence. At the same time, the air passage 5 is connected to a row of aeration holes 16 in the length direction of the corresponding first circular tube 2. Thus, the gas discharged from the first air outlet 4 is discharged through the air passage 5 and discharged from the aeration holes 16, realizing aeration treatment. When the device is not in use, the gas supply is stopped. At this time, the spring 10 rebounds and extends, thus moving and resetting the third circular tube 8. At the same time, with the cooperation of the ball bearing 13 and the guide groove 12, the second circular tube 3 is reset. At this time, the second circular tube 3 blocks the second air outlet 7, and the first circular tube 2 blocks the air passage 5, thereby preventing sewage backflow.

[0024] In this utility model, it should be noted that the connecting assembly includes multiple rolling grooves 14, which are formed on the outer circumference of the third circular tube 8. Each rolling groove 14 contains a rolling ball 13, which positions the ball 13. The inner circumference of the second circular tube 3 has multiple guide grooves 12. Movement of the third circular tube 8 causes the ball 13 to move along the guide grooves 12, thereby causing the second circular tube 3 to rotate. The ball 13 is slidably connected to the guide grooves 12. The use of 12 guides the ball 13, allowing it to move in the desired direction. Multiple guide rods 9 are fixed to one side of the outer wall of the rear cover 6 by bolts. Multiple sliding grooves 15 are opened inside one end of the third round tube 8, and the guide rods 9 are slidably connected to the sliding grooves 15. The guide rods 9 can guide the third round tube 8, enabling it to move horizontally stably. The outer circumference of the second round tube 3 is in contact with the inner circumference of the first round tube 2. The second round tube 3 is rotatably connected to the front cover 1 and the rear cover 6.

[0025] The working principle of this invention is as follows: When aeration is required, the front cover 1 is connected to the external air outlet pipe, allowing the blown gas to enter the third circular tube 8 through the front cover 1. At this time, the third circular tube 8 moves along the guide rod 9, and the spring 10 contracts. Simultaneously, the movement of the third circular tube 8 causes the ball bearing 13 to move along the guide groove 12, thereby causing the second circular tube 3 to rotate. This connects the second air outlet 7 with the first air outlet 4, allowing the gas in the third circular tube 8 to be discharged sequentially through the second air outlet 7 and the first air outlet 4. At the same time, the air passage 5 is connected to a row of aeration holes 16 along the length of the corresponding first circular tube 2, so that the gas discharged from the first air outlet 4 is discharged from the aeration holes 16 through the air passage 5 to achieve aeration treatment. When the device is not in use, the gas supply is stopped. At this time, the spring 10 rebounds and extends, so that the third circular tube 8 moves and resets. At the same time, with the cooperation of the ball bearing 13 and the guide groove 12, the second circular tube 3 is reset. At this time, the second circular tube 3 blocks the second air outlet 7, and the first circular tube 2 blocks the air passage 5, thereby preventing sewage backflow.

[0026] Furthermore, the terms "installation," "setup," "connection," and "socketing" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral constructions; they can refer to mechanical or electrical connections; they can refer to direct connections or indirect connections via an intermediate medium, or internal connections between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

Claims

1. A backflow-preventing sewage treatment aeration device, comprising a first circular pipe (2), wherein a plurality of aeration holes (16) are provided on the outer circumference of the first circular pipe (2), characterized in that, The first round tube (2) is fixedly connected to a front end cap (1) and a rear end cap (6) at both ends. The first round tube (2) is provided with a second round tube (3). The outer circumference of the second round tube (3) is provided with multiple air passages (5), and the air passages (5) are connected to the aeration holes (16). The middle position of each of the multiple air passages (5) is provided with a first air outlet (4). The second round tube (3) is provided with a third round tube (8). The outer side of the third round tube (8) is provided with multiple second air outlets (7), and the first air outlet (4) can be connected to the second air outlet (7). The third round tube (8) is slidably connected to the front end cap (1). The rear end cap (6) is provided with a clearance groove (11) on one side. A spring (10) is fixedly connected to one side of the clearance groove (11), and the spring (10) is fixed to the third round tube (8). The outer side of the third round tube (8) is provided with a connecting component that drives the second round tube (3) to rotate.

2. The backflow prevention sewage treatment aeration device according to claim 1, characterized in that, The connecting assembly includes multiple rolling grooves (14), which are formed on the outer circumference of the third circular tube (8). Rolling balls (13) roll in each of the multiple rolling grooves (14), and multiple guide grooves (12) are formed on the inner circumference of the second circular tube (3).

3. The backflow prevention sewage treatment aeration device according to claim 2, characterized in that, The ball (13) is slidably connected to the guide groove (12).

4. The backflow prevention sewage treatment aeration device according to claim 1, characterized in that, Multiple guide rods (9) are fixedly connected to one side of the outer wall of the rear end cover (6).

5. A wastewater treatment aeration device for preventing backflow according to claim 4, characterized in that, The third circular tube (8) has multiple grooves (15) inside one end, and the guide rod (9) is slidably connected to the grooves (15).

6. The backflow prevention aeration device for sewage treatment according to claim 1, characterized in that, The outer circumference of the second circular tube (3) is in contact with the inner circumference of the first circular tube (2).

7. The backflow prevention sewage treatment aeration device according to claim 1, characterized in that, The second round tube (3) is rotatably connected to the front end cover (1) and the rear end cover (6).

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