CN214457107U - Aerator for urban sewage treatment - Google Patents

Abstract

The utility model discloses an aerator for municipal sewage treatment, including supporting disk, diaphragm and gland, the diaphragm cladding is the arch at the upper surface of supporting disk and the arch that makes progress, gland and supporting disk threaded connection can compress tightly the diaphragm on the supporting disk, a plurality of trompils have been seted up on the diaphragm, evenly be provided with many air feed grooves along the direction of radius in the supporting disk, the supporting disk bottom is equipped with the trachea, be equipped with the check valve in the trachea, the supporting disk passes through cavity bolt and saddle shape leg joint, saddle shape leg's inner wall is provided with a plurality of mounting holes and can pass through mounting hole and spacing leg joint, realizes high-efficient aeration and improves the practicality.

Description

Aerator for urban sewage treatment

Technical Field

The utility model relates to an aerator technical field especially relates to an aerator for municipal sewage treatment.

Background

The aerator is a necessary device for aerating and oxygenating the drained water, is one of indispensable devices of urban sewage treatment plants, and is directly related to the treatment benefit and the operation condition of the sewage treatment plants. The method can be divided into a surface aerator and an underwater aerator according to the using method, at present, most of municipal sewage treatment plants in China adopt disc-type aerators in the underwater aerators for biochemical aeration and oxygenation, and the market demand of the disc-type aerators is more and more increased along with the rapid construction of the municipal sewage treatment plants in China.

The prior aerator mainly has the following problems:

1. in the prior art, the supporting disc and the diaphragm thereof are flat plates, the diaphragm has small elasticity and tension when in work, can not thoroughly prevent blockage, has short service life and needs to be frequently replaced or maintained;

2. in the prior art, the ventilation mode of the ventilation pipe for the diaphragm is circumferential ventilation or central ventilation, and the existing ventilation mode is not uniform, so that the stress of the diaphragm is not balanced, and each micropore on the diaphragm is not uniformly stressed, thereby influencing the aeration effect of the aerator;

3. the supporting disc in the aerator is generally fixed on the pipe in an adhesive or solution welding mode, the adhesive or solution welding is very labor-consuming, the water quality of a sewage treatment plant is complex, the corrosivity is high, an adhesive or solution welding material is easily corroded, so that the connection between the aerator and an air main pipe is unstable, and meanwhile, the problem that the supporting disc is not easily aligned with an air supply port exists, so that the floating accident caused by insufficient solid strength of the aerator is caused;

4. for being connected stably between messenger's aerator and the pipe, be provided with the support in the supporting disk bottom among the prior art, carry out the joint through support and pipe, but the pipeline size of circulation sewage differs in the city, needs to change the support according to pipeline size, avoids because of the joint is unstable leads to the aerator admittedly not enough, has reduced efficiency when having increased the cost.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects, the utility model aims to provide an aerator for urban sewage treatment, which realizes high-efficiency aeration and improves the practicability.

In order to achieve the above purpose, the utility model discloses a technical scheme is: the utility model provides an aerator for municipal sewage treatment, includes supporting disk, diaphragm and gland, the diaphragm cladding is the arch at the upper surface of supporting disk and the arch that makes progress, gland and supporting disk threaded connection can compress tightly the diaphragm on the supporting disk, a plurality of trompils have been seted up on the diaphragm, evenly be provided with many air feed grooves along the direction of radius in the supporting disk, the supporting disk bottom is equipped with the trachea, be equipped with the check valve in the trachea, the supporting disk passes through hollow bolt and saddle shape leg joint, saddle shape leg's inner wall is provided with a plurality of mounting holes and can passes through mounting hole and spacing leg joint.

Further, be provided with a plurality of installation pieces on the spacing support, the quantity of installation piece is the same with the mounting hole and the one-to-one from top to bottom in position, the size and the shape phase-match of installation piece and mounting hole, can be through installation piece and mounting hole cooperation joint between saddle-shaped support and the spacing support.

Further, the number of the air supply grooves is four, and the air supply grooves are arranged around the air pipes by taking the air pipes as centers.

Further, the diaphragm comprises first diaphragm and second diaphragm and through bonding fixed connection, all be equipped with a plurality of trompils and crisscross setting from top to bottom on first diaphragm and the second diaphragm, it is a plurality of the trompil outwards is the heliciform by the center and distributes.

Furthermore, a flow guide supporting plate is arranged between the diaphragm and the supporting plate, and a plurality of through holes are formed in the edge of the flow guide supporting plate.

Furthermore, the supporting disk is made of ABS plastic material

Furthermore, the diaphragm is made of rubber.

Compared with the prior art, the utility model, its beneficial effect lies in:

1. the diaphragm is upwards convex and arched, so that blockage can be effectively prevented, and the service life is prolonged;

2. a plurality of air feeding grooves are arranged in the supporting disc, so that the entering air is buffered by a check valve and then is directly fed to the center of the supporting disc, the diaphragm is ensured to be easily opened at one time with low resistance, the aeration effect of the aerator is improved, and the aeration efficiency is improved;

3. the support plate is connected with the saddle-shaped support through the hollow bolt, so that the connection stability of the aerator and the pipeline is improved;

4. the inner wall of the saddle-shaped support is provided with a plurality of mounting holes and can be connected with a limiting support through the mounting holes, when the pipeline size is too small, the connecting stability between the aerator and the pipeline is improved through selecting the limiting support matched with the pipeline size, and the increase of cost and the reduction of efficiency caused by the fact that the solid force of the aerator is not enough due to unstable clamping are avoided.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a diaphragm;

fig. 3 is a schematic structural view of the limiting bracket.

In the figure:

1-a support disk; 2-a membrane; 21-a first membrane; 22-a second membrane; 3-pressing the cover; 4-a flow guiding support plate; 5-a check valve; 6-air feeding groove; 7-saddle shaped support; 8-a hollow bolt; 9-a limit bracket; 10-mounting blocks.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Referring to the attached drawings 1-3, an aerator for urban sewage treatment comprises a supporting plate 1 (the supporting plate 1 is made of ABS plastic materials), a diaphragm 2 (the diaphragm 2 is made of rubber materials) and a gland 3, wherein the diaphragm 2 is coated on the upper surface of the supporting plate 1 and protrudes upwards to form an arch, so that blockage is avoided, the service life is prolonged, the gland 3 is in threaded connection with the supporting plate 1 and can compress the diaphragm 2 on the supporting plate 1, and the diaphragm 2 is ensured not to fall off;

a flow guide support plate is further arranged between the membrane 2 and the support plate 1, a plurality of openings are formed in the membrane 2, the membrane 2 is composed of a first membrane 21 and a second membrane 22 and is fixedly connected with the first membrane 21 and the second membrane 22 in an adhering mode, the first membrane 21 and the second membrane 22 are respectively provided with a plurality of openings which are arranged in a vertically staggered mode, the plurality of openings are distributed spirally from the center to the outside, and a plurality of through holes are formed in the edge of the flow guide support plate 11;

a plurality of air supply grooves 6 are uniformly arranged in the supporting plate 1 along the radius direction, the number of the air supply grooves 6 is four, and the air supply grooves are arranged around the air pipes as the center, so that the entering air is buffered by a check valve 5 and then directly sent to the center of the supporting plate 1, the diaphragm 2 is ensured to be easily opened at a low resistance at one time, the air pipes are arranged at the bottom of the supporting plate 1, and the check valves 5 are arranged in the air pipes;

supporting disk 1 is connected with saddle support 7 through hollow bolt 8, saddle support 7's inner wall is provided with a plurality of mounting holes and can be connected with spacing support 9 through the mounting hole, be provided with a plurality of installation pieces 10 on spacing support 9, the quantity of installation piece 10 and the same and one-to-one from top to bottom in position of mounting hole, the size and the shape phase-match of installation piece 10 and mounting hole, can be through installation piece 10 and mounting hole cooperation joint between saddle support 7 and the spacing support 9, when the pipeline size is too small, through selecting with pipeline size assorted spacing support 9, improve the stability of being connected between aerator and the pipeline.

The opening on the membrane 2 automatically expands and expands during air intake to ensure air to pass through, and when aeration is stopped, the opening on the membrane 2 is in a closed state, and the opening of the aerator is prevented from being blocked by automatic expansion and contraction of the opening;

simultaneously, the bottom of the aerator is provided with a check valve, when the pipeline system stops supplying air, the mixed liquid is prevented from entering the supporting disc 1, the situation that the mixed liquid enters the supporting disc 1 and is blocked can be avoided, and the entering air does not need to be specially filtered.

When the aerator is specifically implemented, the aerator is mutually matched and fixed on a pipeline through a saddle-shaped support 7 and a limiting support 9 in a base, when the pipeline is ventilated, air enters the pipeline, enters a hollow bolt 8 from an air outlet of the pipeline upwards and reaches a check valve 5, then is conveyed to a flow guide supporting plate, and reaches the membrane 2 from a through hole of the flow guide supporting plate, so that the first membrane 21 and the second membrane 22 are expanded, and the air overflows from open holes of the first membrane 21 and the second membrane 22 to form small bubbles of 1-2 mm; when the aeration is stopped, the first membrane 21 and the second membrane 22 are attached to the flow guide supporting plate due to the suction effect generated by the rapid withdrawal of the air, the second membrane 22 is arched when attached to the flow guide supporting plate, and the arched second membrane 22 has large elastic space due to the action of the air when the aeration is performed again, so that the suspended matters, sludge and the like are automatically dropped under the action of the elastic force due to the enhancement of the elastic force, and the circulation work is realized without blockage.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.

Claims (7)

1. The utility model provides an aerator for municipal sewage treatment, includes supporting disk (1), diaphragm (2) and gland (3), its characterized in that: the utility model discloses a supporting disk, including supporting disk (1), gland (1), trachea (4), be equipped with check valve (5) in trachea (4), supporting disk (1) is connected with saddle-shaped support (7) through cavity bolt (8), the inner wall of saddle-shaped support (7) is provided with a plurality of mounting holes and can be connected with spacing support (9) through the mounting hole.

2. The aerator for municipal sewage treatment according to claim 1, wherein: be provided with a plurality of installation pieces (10) on spacing support (9), the quantity and the mounting hole of installation piece (10) are the same and the one-to-one from top to bottom in position, the size and the shape phase-match of installation piece (10) and mounting hole, can be through installation piece (10) and mounting hole cooperation joint between saddle-shaped support (7) and spacing support (9).

3. The aerator for municipal sewage treatment according to claim 1, wherein: the number of the air supply grooves (6) is four, and the air supply grooves are arranged around the air pipes (4) by taking the air pipes as centers.

4. The aerator for municipal sewage treatment according to claim 1, wherein: diaphragm (2) comprise first diaphragm (21) and second diaphragm (22) and through bonding fixed connection, all be equipped with a plurality of trompils and crisscross setting from top to bottom on first diaphragm (21) and second diaphragm (22), it is a plurality of the trompil outwards is the heliciform by the center and distributes.

5. The aerator for municipal sewage treatment according to claim 4, wherein: a flow guide supporting plate (11) is further arranged between the diaphragm (2) and the supporting plate (1), and a plurality of through holes are formed in the edge of the flow guide supporting plate (11).

6. The aerator for municipal sewage treatment according to claim 1, wherein: the support plate (1) is made of ABS plastic.

7. The aerator for municipal sewage treatment according to claim 1, wherein: the diaphragm (2) is made of rubber.

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