A ring aerator

Abstract

The utility model provides an annular aerator, including aeration pipeline, vertical component, bottom disc, micropore diaphragm and annular tablet, aeration pipeline vertical setting, the vertical pipe top end of vertical component is connected with the bottom end of aeration pipeline, the outer flange of bottom disc is equipped with annular convex, the inner flange of bottom disc is equipped with annular convex, and the inside of inner flang is communicated with the periphery of inner flange at the bottom, the micropore diaphragm that is full of micropore is annular, and its periphery arch is equipped with the outer pressure edge cooperation of outer flange, and the inner pressure edge cooperation of its middle arch is equipped with inner flange, annular tablet is annular, micropore diaphragm is installed on the bottom disc, and the outer pressure edge is tightly sleeved on the outer flange, and the inner pressure edge is tightly sleeved on the inner flange, the vertical pipe bottom end of vertical component is fixedly connected with inner flange, makes the tight part tight on the inner pressure edge, and annular tablet is tight on the outer pressure edge, the utility model discloses convenient replacement, and the aeration is even, and the operation is stable.

Description

Technical Field

[0001] The utility model relates to the field of water treatment equipment, and particularly relates to an annular aerator. Background Art

[0002] An aerator is an important device in a biochemical pool. A blower is connected to the aerator through a pipeline, and air is filled into the biochemical pool in the form of dispersed bubbles to form aeration conditions.

[0003] The liquid in the biochemical pool is a mixed solution (activated sludge + wastewater). With the long-term operation of the biochemical pool, sludge is likely to accumulate at the bottom, resulting in the blockage of the aerator. At this time, the aerator needs to be replaced. The service life of a traditional disc aerator is generally 5 - 10 years, and the installation method is fixed installation. When replacing, the biochemical pool needs to be emptied, and workers enter the pool to replace it. Because the accumulated sludge is prone to anaerobic fermentation to produce toxic and harmful gases such as hydrogen sulfide and ammonia, there are great safety hazards when workers operate. On the other hand, sewage treatment stations generally operate continuously (for example, the sewage treatment station supporting a slaughterhouse), and it is impossible to empty the pool for workers to enter the pool for maintenance.

[0004] There is also a strip-shaped tube aerator in the prior art, which is connected by an aeration pipeline and extends outward from the bottom end of the aeration pipeline to achieve disassembly and replacement. However, the bubbles escape radially from the pipeline, there is a height difference, and it is easy to出现 the phenomenon of uneven bubbles at the top and bottom. Moreover, due to uneven aeration pressure, the tube aerator swings left and right during operation, resulting in instability of the aerator after long-term operation. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an annular aerator which is convenient to replace, has uniform aeration and stable operation in view of the problems existing in the prior art.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An annular aerator includes an aeration pipe, a vertical component, a base, a microporous membrane, and an annular pressing plate. The aeration pipe is vertically arranged. The vertical component consists of a centrally vertically arranged vertical tube and a pressing part that radially protrudes from the bottom periphery of the vertical tube. The top end of the vertical tube of the vertical component is connected to the bottom end of the aeration pipe. The base has an annularly protruding outer flange on its periphery and an annularly protruding inner flange in the middle of the base. The inner flange mates with the pressing part, and the interior of the inner flange is connected to the periphery of the inner flange at its bottom. The microporous membrane, which is covered with micropores, is annularly arranged. The microporous membrane is shaped such that its outer periphery is arched and has an outer pressure edge that mates with the outer flange, and its middle part is arched and has an inner pressure edge that mates with the inner flange; the annular pressure plate is annular and its cross-section is arched to mate with the outer pressure edge; the microporous membrane is mounted on the chassis, with the outer pressure edge pressed and fitted onto the outer flange, and the inner pressure edge pressed and fitted onto the inner flange; the bottom end of the vertical tube of the vertical component is fixedly connected to the inner flange, so that the pressing part presses against the inner pressure edge to press and fix the middle part of the microporous membrane; the annular pressure plate presses against the outer pressure edge to press and fix the periphery of the microporous membrane.

[0008] Furthermore, a plurality of support rods are provided radially between the outer flange and the inner flange of the chassis, and the support rods are evenly distributed on the circumference, so that the bottom of the inner flange is suspended from the chassis.

[0009] Furthermore, the top end of the vertical pipe of the vertical component is connected to the bottom end of the aeration pipe by a threaded seal.

[0010] Furthermore, the annular pressure plate is composed of multiple arc-shaped pressure plates spliced ​​together.

[0011] This utility model discloses a ring-shaped aerator with top-mounted air intake. In case of failure, it can be disassembled and replaced by lifting the aeration pipe, eliminating the need for manual entry into the sewage tank. Furthermore, its ring-shaped aeration layout ensures more uniform aeration and prevents twisting or deformation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of an annular aerator provided by this utility model.

[0013] Figure 2 yes Figure 1 A schematic diagram of its decomposed structure. Detailed Implementation

[0014] The technical solution of this utility model will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0015] Example 1

[0016] like Figures 1 to 2As shown, the present invention provides an annular aerator, comprising an aeration pipe 1, a vertical component 2, a base 3, a microporous membrane 4, and an annular pressing plate 5; the aeration pipe 1 is vertically arranged; the vertical component 2 consists of a vertically arranged central vertical pipe 21 and a pressing part 22 radially protruding from the bottom periphery of the vertical pipe 21, the top end of the vertical pipe 21 of the vertical component 2 being connected to the bottom end of the aeration pipe 1; the base 3 has an annularly protruding outer flange 31 on its periphery, and an annularly protruding inner flange 32 in the middle of the base 3, the inner flange 32 cooperating with the pressing part 22, and the interior of the inner flange 32 communicating with the periphery of the inner flange 32 at its bottom; a microporous membrane filled with micropores... The sheet 4 is annular, with an outer pressing edge 41 that mates with the outer flange 31 and an inner pressing edge 42 that mates with the inner flange 32. The annular pressing sheet 5 is annular, with an arched cross-section that mates with the outer pressing edge 41. The microporous membrane 4 is mounted on the base plate 3, with the outer pressing edge 41 pressed and fitted onto the outer flange 31 and the inner pressing edge 42 pressed and fitted onto the inner flange 32. The bottom end of the vertical tube 21 of the vertical component 2 is fixedly connected to the inner flange 32, so that the pressing part 22 presses against the inner pressing edge 42 to press and fix the middle part of the microporous membrane 4. The annular pressing sheet 5 presses against the outer pressing edge 41 to press and fix the periphery of the microporous membrane 4.

[0017] During operation, the aeration pipe 1 extends from the top to the bottom of the biological treatment tank, with the top end of the aeration pipe 1 protruding outside the biological treatment tank and connected to driving equipment such as blowers. The base, microporous membrane 4, and annular pressing plate 5 are immersed in the biological treatment tank. When replacement or maintenance is required, the aeration pipe 1 can be pulled up, and the microporous membrane 4 can be removed from the biological treatment tank for disassembly, replacement, or maintenance.

[0018] During operation, this invention uses top air intake. Air is introduced from the aeration pipe 1 through the vertical pipe 21 of the vertical component 2, and bubbles are generated by the microporous membrane 4. Because the microporous membrane 4 is in the shape of an annular disc, the aeration is uniform, and the aeration in all directions is basically consistent, without problems such as twisting, deformation, or shaking.

[0019] Furthermore, a plurality of support rods 33 are provided radially between the outer flange 31 and the inner flange 32 of the chassis 3. The support rods 33 are evenly distributed on the circumference, so that the bottom of the inner flange 32 is suspended from the chassis 3.

[0020] Since air entering the inner flange 32 needs to flow evenly from its bottom to its perimeter, better ventilation at the bottom of the inner flange 32 is more beneficial. A conventional ventilation structure could involve creating perforations at the bottom of the inner flange 32, but this obviously limits the flow area. However, the support rod 33 allows the inner flange 32 to be suspended in the center of the chassis 3, enabling ventilation throughout the entire bottom of the inner flange 32, promoting even aeration and reducing airflow obstruction. With this design, the inner flange 32 and chassis 3 can be assembled as separate units.

[0021] Preferably, the top end of the vertical pipe 21 of the vertical component 2 is connected to the bottom end of the aeration pipe 1 by a threaded seal, which facilitates assembly and disassembly.

[0022] Preferably, the annular pressure plate 5 is composed of multiple arc-shaped pressure plates spliced ​​together. While the annular pressure plate 5 could be a single-piece molded structure, this would increase the overall size of individual components, making processing and installation difficult. Dividing it into two or more segments helps solve this problem.

[0023] This utility model provides a ring-shaped aerator that can be lifted up for assembly and disassembly outside the biological treatment tank during maintenance. It consists of multiple detachable components for easy assembly. The microporous membrane 4 used for aeration is replaceable, and the remaining assembly components are used to fix the microporous membrane 4 and can be recycled. Furthermore, due to its overall ring shape, aeration is uniform and does not shake, which is beneficial for long-term stable operation.

[0024] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A ring-shaped aerator, characterized in that: The system includes an aeration pipe, a vertical component, a chassis, a microporous membrane, and an annular pressing plate. The aeration pipe is vertically arranged. The vertical component consists of a centrally vertically arranged vertical pipe and a radially protruding pressing part at the bottom periphery of the vertical pipe. The top of the vertical pipe is connected to the bottom of the aeration pipe. The chassis has an annularly protruding outer flange on its periphery and an annularly protruding inner flange in its center. The inner flange mates with the pressing part, and the interior of the inner flange is connected to its periphery at the bottom. The microporous membrane, covered with micropores, is annular in shape. The arched part has an outer pressure edge that mates with the outer flange, and the central arched part has an inner pressure edge that mates with the inner flange. The annular pressure plate is annular, and its cross-section is arched to mate with the outer pressure edge. The microporous membrane is mounted on the base plate, with the outer pressure edge pressed and fitted onto the outer flange, and the inner pressure edge pressed and fitted onto the inner flange. The bottom end of the vertical tube of the vertical component is fixedly connected to the inner flange, so that the pressing part presses against the inner pressure edge to press and fix the middle part of the microporous membrane. The annular pressure plate presses against the outer pressure edge to press and fix the periphery of the microporous membrane.

2. The annular aerator according to claim 1, characterized in that: Several support rods are provided radially between the outer flange and the inner flange of the chassis. The support rods are evenly distributed on the circumference, so that the bottom of the inner flange is suspended from the chassis.

3. The annular aerator according to claim 1, characterized in that: The top of the vertical pipe of the vertical component is connected to the bottom of the aeration pipe by a threaded seal.

4. The annular aerator according to claim 1, characterized in that: The annular pressure plate is composed of multiple arc-shaped pressure plates spliced ​​together.

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