Aeration device for town sewage treatment

Abstract

The utility model discloses an aeration device for town sewage treatment, the aeration device comprises an aeration disc base, an aeration disc top cover and a gas transmission mechanism, the upper surface of the aeration disc base is fixedly connected with an annular insertion plate, the upper surface of the annular insertion plate is bonded with a rubber sealing gasket, the upper surface of the aeration disc top cover is provided with a plurality of gas holes, and the gas transmission mechanism is connected with the aeration disc base. An annular groove is formed in the lower surface of the aeration disc top cover, the inner surface of the annular groove is clamped with the outer surface of the annular insertion plate, positioning grooves are formed in the outer side faces of the two ends of the annular insertion plate, side grooves are formed in the inner side walls, close to the positioning grooves, of the annular groove, through holes are formed in the inner side walls of the side grooves, and the ends, away from the side grooves, of the through holes are communicated with the external space; a dismounting mechanism is mounted on the inner side wall of the side groove; through the cooperation of the structure, the aeration disc base and the aeration disc top cover can be conveniently disassembled and assembled, and air holes in the aeration disc top cover can be conveniently cleaned subsequently.

Description

Technical Field

[0001] The utility model belongs to the technical field of aeration devices, in particular to an aeration device for treating urban sewage. Background Art

[0002] Aeration systems used in urban sewage treatment are key components of activated sludge treatment. Aeration discs are crucial in the sewage treatment process, providing sufficient oxygen to promote microbial growth and metabolism, thereby accelerating the purification process. Aeration discs are typically installed underwater and are well connected to air supply pipes and cables to ensure proper operation.

[0003] The utility model with announcement number CN213652020U discloses an aeration device for urban sewage treatment, including a main air pipe, an aeration plate connected to the main air pipe and located above the main air pipe, the aeration plate is hollow inside, a partition is fixed inside the aeration plate, a main air chamber and a secondary air chamber separated by the partition are provided in the aeration plate, the main air chamber is connected to the main air pipe, the secondary air chamber is located above the main air chamber and connected to the secondary air chamber; a plurality of support plates fixed vertically to the top of the partition are fixed inside the secondary air chamber, and the plurality of support plates are distributed in a circular array; a plurality of through holes connected to the secondary air chamber are provided on the top of the aeration plate, the through holes include wide mouth portions located at both ends and a narrow mouth portion located between the two wide mouth portions, and the width of the narrow mouth portion is smaller than the width of the wide mouth portion.

[0004] During the implementation of this application, it was discovered that the technology has the following problems: the aeration disc in the above patent document is an integrated structure, and the air outlet hole is mainly set with a wide mouth and a narrow mouth. This shape structure reduces the width of the blockage point; however, the aeration disc is usually installed underwater. During long-term use, due to the accumulation of dirt, sediment and biofilm in the water, some dirt and impurities will inevitably adhere to the inner wall of the air outlet hole. Over time, this may cause the air outlet to be blocked, affecting its aeration effect. Therefore, the aeration disc needs to be cleaned regularly. However, the integrated structure in the document is not convenient for disassembly and cleaning of the aeration disc. For this reason, an aeration device for urban sewage treatment is proposed. Utility Model Content

[0005] The purpose of the present invention is to provide an aeration device for urban sewage treatment in order to facilitate the disassembly and assembly of the aeration plate base and the aeration plate top cover, and to facilitate the subsequent cleaning of the air holes on the aeration plate top cover.

[0006] The technical solutions adopted in this utility model are as follows:

[0007] An aeration device for treating urban sewage, comprising an aeration plate base, an aeration plate top cover, and an air delivery mechanism. An annular plug plate is fixedly connected to the upper surface of the aeration plate base, a rubber sealing gasket is bonded to the upper surface of the annular plug plate, a plurality of air holes are formed on the upper surface of the aeration plate top cover, an annular groove is formed on the lower surface of the aeration plate top cover, the inner surface of the annular groove is engaged with the outer surface of the annular plug plate, and positioning grooves are formed on the outer side surfaces of both ends of the annular plug plate, a side groove is formed on the inner side wall of the annular groove near the positioning groove, a through hole is formed on the inner side wall of the side groove, and an end of the through hole away from the side groove is connected to the external space, and a disassembly mechanism is installed on the inner side wall of the side groove;

[0008] The disassembly mechanism includes a spring, which is fixedly connected to the inner wall of the side groove near the through hole, and the other end of the spring is fixedly connected to a positioning block, and the outer surface of the positioning block is clamped with the inner surface of the positioning groove, and the middle part of the side of the positioning block close to the spring is fixedly connected to a pull rod, and the end of the pull rod away from the positioning block passes through the spring and the middle part of the through hole and extends to the external space, and the end of the pull rod extending to the external space is fixedly connected.

[0009] Furthermore, a partition is fixedly connected to the middle of the inner side wall of the aeration plate base, a main air chamber is provided on the lower surface of the partition, a secondary air chamber is provided on the upper surface of the partition, and the secondary air chamber and the support plate are connected through the secondary air hole.

[0010] Furthermore, a plurality of support plates are fixed to the upper surface of the partition, and the plurality of support plates are distributed in a circular array.

[0011] Furthermore, the gas delivery mechanism includes a connecting pipe, the upper surface of the connecting pipe is fixedly connected to the connecting pipe, and one end of the connecting pipe away from the gas delivery mechanism is connected to the interior of the main air chamber.

[0012] Furthermore, a one-way valve is provided on the outer surface of the connecting pipe.

[0013] Furthermore, the outer surface of the positioning block is slidably connected to the inner surface of the side groove.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0015] In the present invention, when the aerator plate base and the aerator plate top cover are disassembled, the pulling block can be pulled to make the pulling rod drive the positioning block to compress the spring until the positioning block moves out of the positioning groove and slides into the side groove. At this time, the aerator plate top cover can be moved upward to separate the annular groove and the annular plug plate to achieve disassembly; when installation is required, the positioning block is first compressed into the side groove, and then the annular groove and the annular plug plate are engaged, and then the pulling block is released. Under the elastic reset action of the spring, the positioning block will be driven from the side groove to the inside of the positioning groove, thereby realizing the rapid connection of the aerator plate base and the aerator plate top cover; through the cooperation of the above structures, the aerator plate base and the aerator plate top cover can be conveniently disassembled and assembled, and the subsequent cleaning of the air holes on the aerator plate top cover is also convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a cross-sectional view of the utility model;

[0018] Figure 3 For this utility model Figure 2 A magnified view of point A;

[0019] Figure 4 It is a cross-sectional view of the aeration plate top cover in the utility model.

[0020] Markings in the figure: 1-aeration plate base, 2-aeration plate top cover, 3-gas transmission mechanism, 4-disassembly mechanism, 11-partition, 12-main air chamber, 13-auxiliary air hole, 14-auxiliary air chamber, 15-support plate, 16-annular plug plate, 17-rubber sealing gasket, 18-positioning groove, 21-air hole, 22-annular groove, 23-side groove, 24-through hole, 31-connecting pipe, 32-one-way valve, 41-spring, 42-positioning block, 43-pull rod, 44-pull block. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0022] Reference Figure 1-Figure 4The utility model is an aeration device for treating urban sewage, comprising an aeration plate base 1, an aeration plate top cover 2 and an air delivery mechanism 3. An annular plug plate 16 is fixedly connected to the upper surface of the aeration plate base 1, and a rubber sealing gasket 17 is bonded to the upper surface of the annular plug plate 16. A plurality of air holes 21 are opened on the upper surface of the aeration plate top cover 2. A partition plate 11 is fixedly connected to the middle part of the inner side wall of the aeration plate base 1. A main air chamber 12 is provided on the lower surface of the partition plate 11, and an auxiliary air chamber 14 is provided on the upper surface of the partition plate 11. The auxiliary air chamber 14 and the support plate 15 are connected through the auxiliary air holes 13. A plurality of support plates 15 are fixed to the upper surface of the partition 11, and the plurality of support plates 15 are distributed in a circular array. The gas delivery mechanism 3 includes a connecting pipe 31. The upper surface of the connecting pipe 31 is fixedly connected to the connecting pipe 31. The end of the connecting pipe 31 away from the gas delivery mechanism 3 is connected to the interior of the main air chamber 12. A one-way valve 32 is provided on the outer surface of the connecting pipe 31. Specifically, the one-way valve 32 is opened to ventilate the gas delivery mechanism 3, and the gas is sent to the main air chamber 12 through the connecting pipe 31. The main air chamber 12 sends the gas to the auxiliary air chamber 14 through the auxiliary air hole 13, and then discharged from the air hole 21.

[0023] An annular groove 22 is provided on the lower surface of the aeration plate top cover 2, and the inner surface of the annular groove 22 is snap-fitted with the outer surface of the annular insert 16, and positioning grooves 18 are provided on the outer sides of both ends of the annular insert 16. A side groove 23 is provided on the inner side wall of the annular groove 22 close to the positioning groove 18, and a through hole 24 is provided on the inner side wall of the side groove 23. The end of the through hole 24 away from the side groove 23 is connected to the external space, and a disassembly mechanism 4 is installed on the inner side wall of the side groove 23; the disassembly mechanism 4 includes a spring 41, which is fixedly connected to the inner side wall of the side groove 23. The side groove 23 is close to the inner wall of the through hole 24, and the other end of the spring 41 is fixedly connected to the positioning block 42. The outer surface of the positioning block 42 is slidably connected to the inner surface of the side groove 23, and the outer surface of the positioning block 42 is snapped into the inner surface of the positioning groove 18. The positioning block 42 is fixedly connected to the middle of one side close to the spring 41. The end of the pull rod 43 away from the positioning block 42 passes through the spring 41 and the middle of the back of the through hole 24 and extends to the external space, and the end of the pull rod 43 extending to the external space is fixedly connected to 45.

[0024] Specifically, when the inner wall of the air hole 21 needs to be cleaned due to a lot of impurities attached to it under water for a long time and affecting the air outlet, the staff can pull the pulling block 44 to make the pull rod 43 drive the positioning block 42 to compress the spring 41 until the positioning block 42 moves out of the positioning groove 18 and slides into the side groove 23. At this time, the aeration plate top cover 2 can be moved upward to separate the annular groove 22 from the annular insert plate 16 to achieve disassembly; when installation is required, first make the positioning block 42 compress the spring 41 to the inside of the side groove 23, Then the annular groove 22 and the annular insert plate 16 are engaged, and then the pulling block 44 is released. Under the elastic reset action of the spring 41, the positioning block 42 will be driven from the side groove 23 to the inside of the positioning groove 18, thereby realizing the quick connection of the aeration plate base 1 and the aeration plate top cover 2. Compared with the integrated aeration plate in CN213652020U, the aeration plate base 1 and the aeration plate top cover 2 in this application form an aeration device that can be easily disassembled and assembled, which is convenient for subsequent cleaning of the air hole 21.

[0025] The above structure cooperates to realize convenient disassembly and assembly of the aeration plate base 1 and the aeration plate top cover 2 , and also facilitates the subsequent cleaning of the air holes 21 on the aeration plate top cover 2 .

[0026] In order to better illustrate the utility model, its working process is described in detail below:

[0027] The air delivery mechanism 3 is ventilated, and the air is sent to the main air chamber 12 through the connecting pipe 31. The main air chamber 12 sends the air to the auxiliary air chamber 14 through the auxiliary air hole 13, and then discharged from the air hole 21. When the inner wall of the air hole 21 has a lot of impurities attached to it due to long-term underwater use, which affects the air output and needs to be cleaned;

[0028] The staff can pull the pulling block 44 to make the pull rod 43 drive the positioning block 42 to compress the spring 41 until the positioning block 42 moves out of the positioning groove 18 and slides into the side groove 23. At this time, the aeration plate top cover 2 can be moved upward to separate the annular groove 22 from the annular insert 16 to achieve disassembly;

[0029] When installation is required, first compress the spring 41 to the inside of the side groove 23 with the positioning block 42, then engage the annular groove 22 and the annular insert plate 16, and then release the pulling block 44. Under the elastic reset action of the spring 41, the positioning block 42 will be driven from the side groove 23 to the inside of the positioning groove 18, thereby realizing the quick connection between the aeration plate base 1 and the aeration plate top cover 2. Compared with the integrated aeration plate in CN213652020U, the aeration plate base 1 and the aeration plate top cover 2 in this application form an aeration device that can be easily disassembled and assembled, which is convenient for subsequent cleaning of the air holes 21; through the cooperation of the above structure, the aeration plate base 1 and the aeration plate top cover 2 can be easily disassembled and assembled, and the air holes 21 on the aeration plate top cover 2 can be easily cleaned.

[0030] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An aeration device for treating urban sewage, comprising an aeration disc base (1), an aeration disc top cover (2) and an air delivery mechanism (3), characterized in that: The upper surface of the aeration plate base (1) is fixedly connected to an annular plug plate (16), and a rubber sealing gasket (17) is bonded to the upper surface of the annular plug plate (16). The upper surface of the aeration plate top cover (2) is provided with a plurality of air holes (21), and the lower surface of the aeration plate top cover (2) is provided with an annular groove (22). The inner surface of the annular groove (22) is engaged with the outer surface of the annular plug plate (16), and positioning grooves (18) are provided on the outer side surfaces of both ends of the annular plug plate (16). The inner side wall of the annular groove (22) close to the positioning groove (18) is provided with a side groove (23), and the inner side wall of the side groove (23) is provided with a through hole (24). The through hole (24) is connected to the external space at one end away from the side groove (23), and a disassembly mechanism (4) is installed on the inner side wall of the side groove (23); The disassembly mechanism (4) includes a spring (41), the spring (41) is fixedly connected to the inner wall of the side groove (23) near the through hole (24), the other end of the spring (41) is fixedly connected to a positioning block (42), and the outer surface of the positioning block (42) is snap-fitted to the inner surface of the positioning groove (18), the positioning block (42) is fixedly connected to a pull rod (43) in the middle of one side near the spring (41), the end of the pull rod (43) away from the positioning block (42) passes through the spring (41) and the rear middle of the through hole (24) and extends to the external space, and the end of the pull rod (43) extending to the external space is fixedly connected to (45).

2. The aeration device for urban sewage treatment according to claim 1, characterized in that: A partition (11) is fixedly connected to the middle of the inner side wall of the aeration plate base (1), a main air chamber (12) is provided on the lower surface of the partition (11), a secondary air chamber (14) is provided on the upper surface of the partition (11), and the secondary air chamber (14) and the support plate (15) are connected through the secondary air hole (13).

3. The aeration device for urban sewage treatment according to claim 2, characterized in that: A plurality of support plates (15) are fixed to the upper surface of the partition plate (11), and the plurality of support plates (15) are distributed in a circular array.

4. The aeration device for treating urban sewage according to claim 2, characterized in that: The gas delivery mechanism (3) comprises a connecting pipe (31), the upper surface of the connecting pipe (31) is fixedly connected to the connecting pipe (31), and one end of the connecting pipe (31) away from the gas delivery mechanism (3) is connected to the interior of the main air chamber (12).

5. The aeration device for treating urban sewage according to claim 4, characterized in that: A one-way valve (32) is provided on the outer surface of the connecting pipe (31).

6. The aeration device for treating urban sewage according to claim 1, characterized in that: The outer surface of the positioning block (42) is slidably connected to the inner surface of the side groove (23).

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