CN201125191Y

CN201125191Y - Aerator

Info

Publication number: CN201125191Y
Application number: CNU2007201915605U
Authority: CN
Inventors: 俞建德
Original assignee: ATAL ENGINEERING Ltd
Current assignee: ATAL ENGINEERING Ltd
Priority date: 2007-11-06
Filing date: 2007-11-06
Publication date: 2008-10-01
Anticipated expiration: 2017-11-06

Abstract

The utility model provides an aerator which comprises a bowl-type base plate (1), a micropore aeration plate (2), a non-return sealplate (3) and a plurality of movable aeration heads (4). A space is left between the micropore aeration plate (2) and the non-return sealplate (3) so that the movable aeration heads (4) can be limited to move between the micropore aeration plate and the non-return sealplate. The upper parts of the movable aeration heads (4) are provided with crisscrossed bubble flow grooves (41a); the lower parts of the movable aeration heads (4) are bowl-shaped. Bowl-shaped through-holes (31) are uniformly distributed on the non-return sealplate (3). The micropore aeration plate (2) is provided with at least one micropore (21) corresponding to each movable aeration head (4). By comparing the utility model with the prior art, an air supply is cut into minute bubbles which can be dissolved in water easily by using the cutting grooves on the conical surfaces of the movable aeration heads through the clearance fit of the movable aeration heads, the micro-pore aeration plate and the non-return sealplate, thereby providing dissolved oxygen and ensuring excellent aeration effect. In addition, the aerator has the function of preventing sludge from returning, thereby prolonging the service life of the aerator.

Description

A kind of aerator

Technical field

The utility model relates to the technical field of sewage biochemical processing process, particularly a kind of aerator that dissolved oxygen is provided.

Background technology

At petrochemical industry, printing and dyeing, weaving, food, brewage, in industrial sewage such as pharmacy, papermaking and the city domestic sewage biochemical processing process, aerator is owing to can provide the required dissolved oxygen of biochemical water treatment and widespread use.At present, common aerator adopts microporous diaphragm aerator, and it generally comprises pedestal, is threaded in top cover and rubber diaphragm on the pedestal, and wherein, top cover is compressed on the top of pedestal with rubber diaphragm, offers the micropore of many open and close types in the rubber diaphragm.During ventilation, pressure gas source enters by pipeline in the pedestal of aerator, under action of air pressure, rubber diaphragm is slightly upwards heaved, and the micropore on the expansion rubber diaphragm, and gas passes through to form small bubbles from micropore, and dissolved oxygen is provided in treatment tank, to carry out biochemical treatment; When stopping air feed, the micropore on the rubber diaphragm is closed gradually, thereby prevents that the mud in the sewage is back in the aerator.In actual applications, As time goes on, rubber is aging easily, sclerosis, micropore size on the diaphragm can enlarge gradually, cause the bubble chap of generation big, and the performance of auto-closing also can descend, after the aperture increases, mud in the sewage just enters in the aerator easily, stops up gas source pipe, influences the works better of whole aerator.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of aeration effect well to be guaranteed at above-mentioned prior art present situation and can effectively prevent the aerator that mud refluxes, and it can be eliminated fully because of the easily aging defective that influences the aeration effect of parts.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of aerator, include the bottom and have the bowl type pedestal of inlet mouth, it is characterized in that: the rim of a bowl place of described bowl type pedestal also is provided with micro-pore aeration plate, the non-return sealing plate below it and is arranged between the two a plurality of movable aeration head;

Wherein, leave spacing between described micro-pore aeration plate and the non-return sealing plate, but and make the displacement of described movable aeration head between bound moving;

Described movable aeration head top has conical surface, and the outside surface of this conical surface is provided with bubble circulation stria, and the lower section of movable aeration head is bowl-shape, has back taper trim and cylindrical bottom portion;

Be evenly distributed with the bowl type through hole that adapts with described movable aeration head lower section on the described non-return sealing plate, and the footpath is greater than the external diameter of cylindrical bottom portion in the described movable aeration head outside the cylindrical part of this bowl type through hole, and the cylindrical bottom portion of each movable aeration head just is plugged on the non-return sealing plate in the corresponding bowl type through hole;

And the position of corresponding each movable aeration head has at least one micropore on the described micro-pore aeration plate.

When this aerator stuffiness, movable aeration head is because of self gravitation and the pressure that is subjected to its top sewage, make each movable aeration head be in the state that moves to lower limit, at this moment, form sealing between the oral area of corresponding bowl type through hole on the back taper trim of each movable aeration head and the non-return sealing plate, prevent the purpose of sewage backflow to the base interior of aerator thereby reach; And when this aerator ventilation, each movable aeration head is subjected to being in the state that moves to upper limit from the pressure of its below source of the gas, the lower section of movable aeration head and non-return sealing plate have the gap between bowl type through hole, also be, sealing between movable aeration head and the non-return sealing plate is removed, and, the conical surface of each movable aeration head by the micro-pore aeration integrated circuit board under the micropore of correspondence, at this moment, source of the gas through the lower section of movable aeration head and non-return sealing plate the gap between bowl type through hole, and cut into tiny bubble by the bubble on the conical surface of movable aeration head circulation stria, upwards flow among the treatment tank through micropore afterwards, thereby reach the oxygen supply purpose.

Wherein, described bubble circulation stria can be the outside surface of the movable aeration head conical surface of being distributed in of Any shape, such as S shape, longitudinal strip, but for guaranteeing the cutting effect of bubble circulation stria to bubble, described bubble circulation stria can be the outside surface that is distributed in the conical surface of described movable aeration head crisscrossly.

For ease of fixed installation micro-pore aeration plate with and the non-return sealing plate of below, the edge, the rim of a bowl place of described bowl type pedestal can be extended with wall extension vertically upward, make pedestal form kink at the intersection at its wall extension and the rim of a bowl place, the top of described pedestal also is coated with bezel ring,, the outer edge of this bezel ring, is threaded mutually with the wall extension of described pedestal, non-return sealing plate and the inside edge of this bezel ring, covers on the outer edge of described micro-pore aeration plate with micro-pore aeration plate and below thereof is fixed between the kink and bezel ring, of described pedestal, like this, as long as with micro-pore aeration plate and non-return sealing plate thickness be made into consistent or be slightly larger than the height of wall extension with the height of the wall extension at pedestal top, just can make both be fixed on the pedestal top easily by bezel ring.

Because micro-pore aeration plate and non-return sealing plate must be separated by at regular intervals between the two, and it is spacing mobile that but movable aeration head between is done up and down, for ease of realizing that micro-pore aeration plate and non-return sealing plate have enough spacings between the two all the time, the outer edge of described micro-pore aeration plate can be extended with a circle chimb downwards, and described non-return sealing plate the outer edge corresponding setting have one the circle step, on this micro-pore aeration plate the end of chimb just in time be against this non-return sealing plate on the step, keep certain spacing thereby make between micro-pore aeration plate central authorities and the non-return sealing plate upper surface, supply the up and down of movable aeration head.

For preventing that movable aeration head is subjected to unexpected the suppressing of source of the gas from its below, and dislocation is unexpectedly moved, the center of top that described movable aeration head is upper conical can also be provided with projection, and the position of corresponding each movable aeration head upper protruding block is provided with a block on the described micro-pore aeration plate, like this, the top of movable aeration head can be subjected to keeping out of block on the micro-pore aeration plate, and guarantees that whole movable aeration head is limited between micro-pore aeration plate and the non-return sealing plate all the time.

Be the further cutting of reinforcement bubble, and can guarantee the smooth and easy micro-pore aeration plate that passes of bubble energy, the micropore of corresponding each movable aeration head is a plurality of for good to be provided with on the described micro-pore aeration plate, and a plurality of micropores radially distribute around corresponding block.

Compared with prior art, the utility model has been abandoned the bubble producing method of original microporous diaphragm aerator, started a kind of brand-new aeration mode, by movable aeration head and micro-pore aeration plate, the non-return sealing plate clearance fit, bubble circulation stria on the conical surface of utilization activity aeration head, and source of the gas is cut into small bubbles in soluble in water, realization provides the purpose of dissolved oxygen, and the movable aeration head in the utility model is at the micro-pore aeration plate, flexible movements are moved in bound displacement between the non-return sealing plate, put in place, can guarantee the aeration effect that aerator is good all the time, simultaneously, because of the back taper trim of movable aeration head can and the non-return sealing plate form sealing between the bowl type through hole, aerator is had effectively prevent the function that mud refluxes, prolonged the work-ing life of aerator, and aerator of the present utility model is simple in structure, easy to install, because of there not being rubber diaphragm, can eliminate fully because of the easily aging defective that influences the aeration effect of parts.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is the sectional view of the utility model embodiment under aeration status;

Fig. 3 is the enlarged view of I portion among Fig. 2;

Fig. 4 is the sectional view of the utility model embodiment under the stuffiness state;

Fig. 5 is the structural representation of micro-pore aeration plate among the utility model embodiment;

Fig. 6 be among the utility model embodiment the non-return sealing plate structural representation.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

As Fig. 1～shown in Figure 6, this aerator, include the bottom and have the non-return sealing plate 3 of the bowl type pedestal 1 of inlet mouth 11, the micro-pore aeration plate 2 that is arranged on the rim of a bowl place 12 of bowl type pedestal 1, micro-pore aeration plate 2 belows and be arranged between the two a plurality of movable aeration head 4, and cover the bezel ring, 5 on pedestal 1 top;

Wherein, leave spacing between described micro-pore aeration plate 2 and the non-return sealing plate 3, but and make described movable aeration head 4 between bound displacements moving;

Described movable aeration head 4 tops have conical surface 41, the outside surface of this conical surface 41 is provided with crisscross bubble circulation stria 41a, and, the center of top of conical surface 41 also is provided with projection 44, and the lower section of movable aeration head 4 is bowl-shape, have back taper trim 42 and cylindrical bottom portion 43, referring to Fig. 3;

Be evenly distributed with the bowl type through hole 31 that adapts with described movable aeration head 4 lower sections on the described non-return sealing plate 3, and the footpath is greater than the external diameter of cylindrical bottom portion 43 in the described movable aeration head 4 outside the cylindrical part of this bowl type through hole 31, and the cylindrical bottom portion 43 of each movable aeration head 4 just is plugged on the non-return sealing plate 3 in the corresponding bowl type through hole 31;

The position of corresponding each movable aeration head 4 upper protruding block 44 is provided with a block 22 on the described micro-pore aeration plate 2, also be, the projection 44 of movable aeration head 4 just in time is positioned under the corresponding block 22, and, the position of corresponding each movable aeration head 4 has a plurality of micropores 21 on the micro-pore aeration plate 2, each micropore 21 is an elongated shape, size is consistent, radially distribute around corresponding block 22, and, in the present embodiment, by the bubble that guarantees to emerge from micropore 21 was all cut by the bubble of movable aeration head 4 circulation stria 41a, the bottom of micropore 21 outer side walls all is positioned at the inboard of the outer edge of 4 upper conical 41 of movable aeration heads;

12 edges, the rim of a bowl place of described bowl type pedestal 1 are extended with wall extension 13 vertically upward, make pedestal 1 at the intersection formation kink A of its wall extension 13 with the rim of a bowl place 12, the outer edge 51 of described bezel ring, 5 is threaded mutually with the wall extension 13 of pedestal 1, and the non-return sealing plate 3 and the inside edge 52 of this bezel ring, 5 covers on the outer edge of described micro-pore aeration plate 2 with micro-pore aeration plate 2 and below thereof is fixed between the kink A and bezel ring, 5 of pedestal 1;

The outer edge of described micro-pore aeration plate 2 is extended with a circle chimb 23 downwards, and the outer edge corresponding setting of described non-return sealing plate 3 has a circle step 32, the end of chimb 23 just in time is against on the step 32 of this non-return sealing plate 3 on this micro-pore aeration plate 2, and, because the height relationships of the height of this chimb 23 and step 32 is to the gap between micro-pore aeration plate 2 and the non-return sealing plate 3, the height of this chimb 23 and step 32 and the size of described movable aeration head 4 with and the bound displacement move required distance dependent.

Principle of work of the present utility model is as follows:

When this aerator work, pedestal 1 below is connected with pressure gas source, each movable aeration head 4 is subjected to being in the state that moves to upper limit from the pressure of its below source of the gas, there is the gap between the lower section of movable aeration head 4 and the bowl type through hole 31 of non-return sealing plate 3, also be, sealing between movable aeration head 4 and the non-return sealing plate 3 is removed, and, the conical surface 41 of each movable aeration head 4 is stuck under the corresponding micropore 21 by micro-pore aeration plate 2, at this moment, gap between the lower section of the movable aeration head 4 of source of the gas process and the bowl type through hole 31 of non-return sealing plate 3, and cut into tiny bubble by the bubble on the conical surface 41 of movable aeration head 4 circulation stria 41a, upwards flow among the treatment tank through micropore 21 afterwards, thereby reach the oxygen supply purpose, shown in the arrow among Fig. 2 and Fig. 3, be the flow direction of bubble;

And when this aerator stuffiness, movable aeration head 4 is because of self gravitation and the pressure that is subjected to its top sewage, make each movable aeration head 4 be in the state that moves to lower limit, at this moment, form sealing between the corresponding bowl type through hole 31 on the back taper trim 42 of each movable aeration head 4 and the non-return sealing plate 3, prevent the purpose of sewage backflow thereby reach, referring to shown in Figure 4 to pedestal 1 inside of aerator.

Claims

1, a kind of aerator, include the bottom and have the bowl type pedestal (1) of inlet mouth (11), it is characterized in that: the rim of a bowl place (12) of described bowl type pedestal (1) also is provided with micro-pore aeration plate (2), the non-return sealing plate (3) below it and is arranged between the two a plurality of movable aeration head (4);

Wherein, leave spacing between described micro-pore aeration plate (2) and the non-return sealing plate (3), and make described movable aeration head (4) but the displacement of between bound is moving;

Described movable aeration head (4) top has conical surface (41), and the outside surface of this conical surface (41) is provided with bubble circulation stria (41a), and the lower section of movable aeration head (4) is bowl-shape, has back taper trim (42) and cylindrical bottom portion (43);

Be evenly distributed with the bowl type through hole (31) that adapts with described movable aeration head (4) lower section on the described non-return sealing plate (3), and the footpath is greater than the external diameter of cylindrical bottom portion (43) in the described movable aeration head (4) outside the cylindrical part of this bowl type through hole (31), and the cylindrical bottom portion (43) of each movable aeration head (4) just is plugged in non-return sealing plate (3) and goes up in the corresponding bowl type through hole (31);

And the position of upward corresponding each the movable aeration head (4) of described micro-pore aeration plate (2) has at least one micropore (21).

2, aerator according to claim 1 is characterized in that: described bubble circulation stria (41a) is the outside surface that is distributed in the conical surface (41) of described movable aeration head (4) crisscrossly.

3, aerator according to claim 1, it is characterized in that: the edge, the rim of a bowl place (12) of described bowl type pedestal (1) is extended with wall extension (13) vertically upward, make pedestal (1) at the intersection formation kink (A) of its wall extension (13) with the rim of a bowl place (12), the top of described pedestal (1) also is coated with bezel ring, (5), the outer edge (51) of this bezel ring, (5) is threaded mutually with the wall extension (13) of described pedestal (1), and the non-return sealing plate (3) and the inside edge (51) of this bezel ring, (5) covers on the outer edge of described micro-pore aeration plate (2) with micro-pore aeration plate (2) and below thereof is fixed between the kink (A) and bezel ring, (5) of described pedestal (1).

4, aerator according to claim 1, it is characterized in that: the outer edge of described micro-pore aeration plate (2) is extended with a circle chimb (23) downwards, and the outer edge corresponding setting of described non-return sealing plate (3) has a circle step (32), and the end that this micro-pore aeration plate (2) is gone up chimb (23) just in time is against on the step (32) of this non-return sealing plate (3).

5, according to the described aerator of arbitrary claim in the claim 1 to 4, it is characterized in that: the center of top of described movable aeration head (4) upper conical (41) also is provided with projection (44), and the position of upward corresponding each movable aeration head (4) upper protruding block (44) of described micro-pore aeration plate (2) is provided with a block (22).

6, aerator according to claim 5 is characterized in that: described micropore (21) radially distributes around corresponding block (22) for a plurality of.