CN105236558B

CN105236558B - Porous menbrane aerator

Info

Publication number: CN105236558B
Application number: CN201510752704.9A
Authority: CN
Inventors: 王超; 杜磊; 孙亚利; 王奎; 刘勇
Original assignee: Suzhou Aiyou Precision Industrial Co Ltd
Current assignee: Suzhou Aiyou Precision Industrial Co Ltd
Priority date: 2015-11-06
Filing date: 2015-11-06
Publication date: 2017-09-15
Anticipated expiration: 2035-11-06
Also published as: CN105236558A

Abstract

The invention discloses a kind of porous menbrane aerator, fitted including disk body and with disk body set diaphragm, the diaphragm provided with inwall fit with disk body outer wall setting cyclic spring projection, the raised inwall of the cyclic spring is provided with the annular groove of concentric setting, the contiguous block for being fixedly connected and being distributed around annular groove axis uniform circular with annular groove side wall provided with several in the annular groove, the disk body sidewall is provided with the fixture block that several can be stretched into annular groove.Pass through the setting of contiguous block, after diaphragm produces largely deformation, fixture block can extrude annular groove side wall, and due to the presence of contiguous block, it can effectively prevent the side wall of annular groove from occurring significantly deforming, and then reach the effect for preventing fixture block from departing from annular groove.

Description

Porous menbrane aerator

Technical field

The present invention relates to a kind of sewage-treatment plant, more specifically, it relates to a kind of porous menbrane aerator.

Background technology

With continuing to develop for modernization construction, in order to improve the quality of environment, and in environment this part, water resource Pollution stand in the breach, therefore sewage aerobic processing in, by aeration make have appropriate oxygen in water, water process can be kept In aerobic bacteria group energy it is enough exist and effectively work, mostly improved at present by the way of blast aeration aerating machine in sewage Oxygen content, and aerator is the necessary equipment of blast aeration aerating machine.

And existing aerator is mostly microporous diaphragm aerator, the device aeration bubbles diameter is small, and gas-liquid interface is straight Footpath is small, and gas-oil interfaces are big, and bubble diffusion is uniform, will not produce eyelet blocking, and corrosion resistance is strong, therefore by the general of consumer All over welcome.

And microporous diaphragm aerator is also classified into many kinds, wherein plate-type aerator also obtains very wide in culture fishery General use.And existing plate-type aerator includes disk body and diaphragm, diaphragm is made up of silicon rubber, provided with many micro- on diaphragm Hole and diaphragm is wrapped around on one end of disk body, by the way that tracheae is connected on the air inlet of disk body, gas can be from gas outlet Place goes out, and because membrane covered is at gas outlet, therefore, gas can make diaphragm deformation, and then the micropore on diaphragm is become big, At this time gas can just be gone out by micropore, when non-aerating when, and diaphragm recovers deformation, and micropore is re-closed, so It can effectively prevent the water in the external world from pouring in down a chimney by micropore into tracheal strips.But it is due to that diaphragm is to be enclosed on disk body, but due to Sometimes in air pressure fluctuation, cesspool other parts aerator block etc. reason, cause air pressure exceed normal value when, aerator diaphragm Abnormal dilatation is stretched, and diaphragm is torn or is come off, whole aerating system cisco unity malfunction causes larger economic loss.

And this problem is directed to, and the Chinese patent of Application No. 201120115544.4, it discloses a kind of anti-tear anticreep Aerator, including supporting plate（That is disk）With microcellular rubber diaphragm, by setting arch stopping means on support plate, work as aeration When other are raised extremely in pipeline, after diaphragm is heaved to a certain extent, arch stopping means can with film contact so that Diaphragm stops heaving.But such setting can cause when the mould of support plate is designed, it is difficult progress that can cause mould The demoulding, and then cause the complicated words of mould structure, improve processing cost；It is flexible to be additionally, since diaphragm, when diaphragm After a part is contacted with arch stopping means, the part will not continue to expansion, and the part not contacted with arch stopping means is then Expansion is may proceed to, and then is caused when aeration intraductal atmospheric pressure is sufficiently large, diaphragm still can have break-off.

The content of the invention

In view of the deficienciess of the prior art, it is an object of the invention to provide a kind of simple in construction, easy to process and energy Enough prevent diaphragm from departing from the microcellular rubber diaphragm of disk.

To achieve the above object, the invention provides following technical scheme：A kind of porous menbrane aerator, including disk body and Fitted with disk body set diaphragm, the diaphragm provided with inwall fit with disk body outer wall setting cyclic spring projection, it is described The raised inwall of cyclic spring is provided with the annular groove of concentric setting, the annular groove and is provided with several and annular The contiguous block that recess sidewall is fixedly connected and is distributed around annular groove axis uniform circular, the disk body sidewall is provided with some The individual fixture block stretched into annular groove.

It is preferred that, annular groove is divided into several necks coordinated with fixture block by several described contiguous blocks.

It is preferred that, the depth of the neck can fit less than the length and card groove sidewall of fixture block with fixture block side wall.

It is preferred that, the arc surface that can be fitted with contiguous block side wall is formed between fixture block described in adjacent two.

It is preferred that, the disk body provided with gas outlet and using gas outlet as the annular lug in the center of circle, the annular lug with Diaphragm offsets.

It is preferred that, the gas outlet is in horn-like.

It is preferred that, the diaphragm surrounds the air-vent that annular lug is set, the diameter of the air-vent provided with several For 3-5mm.

It is preferred that, the thickness of the disk body is more than one end of one end and fixture block provided with gas outlet of the thickness and disk body of fixture block In same plane.

It is preferred that, the inner ring surface of the cyclic spring projection extends to form flange towards the side back to diaphragm.

Compared with prior art, beneficial effects of the present invention are：When assembling, by the way that fixture block is stretched into annular groove It is interior, diaphragm is fixed on disk body so as to realize, when porous menbrane aerator works, diaphragm can expand, so that diaphragm There is gap between annular lug, at this moment, then oxygen can just be gone out by this gap by air-vent, and in film During piece expands, due to being provided with contiguous block in annular groove, contiguous block can stop that the side-walls of annular groove occur Largely deformation, and fixture block is uniform circular distribution, so that ensure can to the various pieces of annular groove side wall Produce and pull power well, and then can effectively prevent fixture block from departing from annular groove.

Brief description of the drawings

Fig. 1 is the installation diagram of porous menbrane aerator of the invention；

Fig. 2 is the explosive view of embodiment one in porous menbrane aerator of the invention；

Fig. 3 is the sectional view of diaphragm in embodiment one；

Fig. 4 is the structure chart of embodiment one in porous menbrane aerator of the invention；

Fig. 5 is the sectional view of disk body；

Fig. 6 is the structure chart of embodiment two in porous menbrane aerator of the invention；

Fig. 7 is the sectional view of diaphragm in embodiment two.

Reference：1st, disk body；11st, gas outlet；2nd, cyclic spring is raised；21st, neck；22nd, annular groove；3rd, diaphragm； 31st, air-vent；32nd, annular caulking groove；4th, flange；5th, contiguous block；6th, arc surface；7th, fixture block；8th, annular lug.

Embodiment

The present embodiment is described further referring to figs. 1 to Fig. 7.

Embodiment one：

A kind of porous menbrane aerator, including disk body 1 and the diaphragm 3 set of being fitted with the one end of disk body 1, the diaphragm 3 are covered The gas outlet 11 firmly set on disk body 1, and set the cyclic spring set of being fitted with the outer wall of disk body 1 convex on one end of diaphragm 3 The annular groove 22 that concentric setting is set on 2, the inwall of annular protrusion is played, several and ring are set in annular groove 22 The contiguous block 5 that the side wall of connected in star 22 is fixedly connected and is distributed around the axis uniform circular of annular groove 22, and it is corresponding, in disk body The fixture block 7 for setting several to stretch into annular groove 22 on 1 side wall, certainly, this fixture block 7 preferably surround the axle of disk body 1 The distribution of line uniform circular, by the set-up mode of uniform circular, to ensure that the side wall of annular groove 22 is each when diaphragm 3 expands The stress at place is all visibly homogeneous, and in order to reduce power of the connection function on the side wall of annular groove 22, the present embodiment is used will Fixture block 7 is designed as the projection of circular arc, reduces fixture block 7 and the stress concentration of the contact position of annular groove 22.When air pressure in aerator Suddenly when rise, the swell increment of diaphragm 3 can increased dramatically, and diaphragm 3 is departed from disk body 1, then to make cyclic spring convex Play 2 and largely deformation quantity occur, and then fixture block 7 is departed from annular groove 22, but be due to be set in annular groove 22 The contiguous block 5 of uniform circular distribution, the presence of contiguous block 5 can play the good effect of pullling to the side wall of annular groove 22, It can effectively prevent the side wall of annular groove 22 from the situation of the disengaging annular groove 22 of fixture block 7 caused by larger deformation quantity occur Occur, and as a preferred scheme, the present embodiment selection makes to form the neck coordinated with fixture block 7 between adjacent two contiguous block 5 21, after fixture block 7 is extend into neck 21, two contiguous blocks 5 can play a part of clamping to fixture block 7, and then further reach Prevent fixture block 7 from departing from the effect of neck 21.The improvement that the present embodiment is related to is main on diaphragm 3, and diaphragm 3 is to use silica gel piece It is made, it has preferable pliability, when injection molding diaphragm 3, it is only necessary to diaphragm 3 deformation is occurred, you can complete Into the demoulding work of diaphragm 3, therefore avoid the need for the mould emptier of specifically related to too complex, reduce cost, and diaphragm 3 with The assembling very simple of disk body 1.

And due to existing diaphragm 3, aperture all very littles of the air-vent 31 above it, by way of making diaphragm 3 and expanding Open air-vent 31, when diaphragm 3 restores to the original state, air-vent 31 is closed automatically, and structure is very ingenious, but the structure It may be only available for gas or liquid free from foreign meter, when needing to be passed through the liquid that some contain suspended particulate, then hold It is easily caused air-vent 31 to block, and with the blocking of air-vent 31, then needs pressure bigger in aerator, produces diaphragm 3 Bigger deformation, and the aperture of air-vent 31 also becomes big accordingly, has reached that adaptation suspended particulate passes through.And if when diaphragm 3 When in limit of stretch, the aperture of air-vent 31 still can not pass through for suspended particulate, then diaphragm 3 can be caused to tear Phenomenon, influence aerator normal work.Therefore, in order to solve this problem, the present embodiment from set on disk body 1 with Gas outlet 11 is the annular lug 8 in the center of circle, and annular lug 8 and diaphragm 3 offset so that deformation occurs in diaphragm 3, now convex annular Block 8 can fit with the formation of diaphragm 3, prevent under the non-working condition of aerator, extraneous moisture passes through gas outlet 11.And so If one, it is possible to by the aperture of air-vent 31 set it is big a bit, and because the volume of suspended particulate is also smaller, because After the aperture of air-vent 31 is set greater than 3mm by this, but air-vent 31 is big, gas outlet 11 can be caused out The injection dynamics of gas or liquid diminishes, therefore air-vent 31 is unsuitable excessive, so air-vent 31 is set into 3-5mm i.e. Can.

And in order that the connection between diaphragm 3 and disk body 1 is more firm, while making the compactness of annular lug 8 and diaphragm 3 more The depth of neck 21 is less than the length of fixture block 7 by height, the present embodiment selection, and when fixture block 7 is stretched into neck 21, in order to Neck 21 is set to accommodate fixture block 7 completely, the top of fixture block 7 can extrude the bottom of neck 21, so that the depth of neck 21 becomes The distance between it is long, and at the same time, the width of neck 21 can be reduced by a certain degree of, that is, adjacent two contiguous block 5 Diminish, and because contiguous block 5 before originally plays clamping action, now clamping of the contiguous block 5 to fixture block 7 to fixture block 7 Effect is bigger, and the side wall of neck 21 can fit with the side wall formation of fixture block 7, and then makes between neck 21 and fixture block 7 Contact area is bigger, connect even closer, so that the fastness for being processed further being connected between diaphragm 3 and disk body 1 is reached, and by The arc surface 6 that can be fitted with the side wall of contiguous block 5 is formed between adjacent two fixture block 7, therefore contiguous block 5 can also fit with fixture block 7, Two fixture blocks 7 can produce clamping action to contiguous block 5, and then improve the being completely embedded property between contiguous block 5 and fixture block 7；And and this Meanwhile, when extruding the bottom of neck 21 on the top of fixture block 7, diaphragm 3 can be made to be in the situation upheld, and due to convex annular The presence of block 8, annular lug 8 can make diaphragm 3 phenomenon arched upward occur, therefore when diaphragm 3 is upheld, can cause diaphragm 3 and ring Conflict power between shape projection 8 is bigger, so that what is combined between annular lug 8 and diaphragm 3 is even closer, even if when diaphragm 3 Occur after a certain degree of elastic deformation, be still able to ensure the compactness between diaphragm 3 and annular lug 8.

And because after deformation occurs in diaphragm 3, certain gap occurs in the junction between diaphragm 3 and disk body 1, and After having these gaps, a part of gas or liquid can be gone out by the gap, and so, at aerator The gas or liquid ejected is not linearly injection, but in the injection of four bulks, has led to liquid or gas yet Straight line jet length diminish so that cause staff need many places carry out Air Exposure, add labour cost, reduce Operating efficiency.Therefore, for this phenomenon, the present embodiment uses the thickness that the thickness of disk body 1 is set greater than to fixture block 7, And the one end of disk body 1 provided with gas outlet 11 and one end of fixture block 7 are in same plane.During due to 1 side wall of disk body and annular elastomeric Property projection 2 inwall laminating, after deformation occurs in diaphragm 3, fixture block 7 can give annular groove 22 back to the side of diaphragm 3 Lateral plate one outwardly against power, and fitted now or with the side wall of disk body 1 due to cyclic spring projection 2, the side wall of disk body 1 It can give the power that one, 22 side wall of annular groove prevents it from deforming, and then showing of avoiding that tilting occurs in the side of annular groove 22 As, it is ensured that when diaphragm 3 is heaved, it is sealed between cyclic spring projection 2 and disk body 1, is so located at diaphragm 3 and disk body 1 Between gas can only be gone out by air-vent 31, make the gas of ejection or the Objective of liquid and directionality all brighter Really, the unnecessary waste of gas or liquid is reduced.

And during constantly dismounting diaphragm 3 is with disk body 1, disk body 1 is to be connected by cyclic spring projection 2 with disk body 1 Connect, therefore, the phenomenon ruptured very easily occurs in the edge of cyclic spring projection 2, therefore in order to prevent such case Appearance, the present embodiment is used to be extended to form flange 4, mistake in the inner ring surface of cyclic spring projection 2 towards the side back to diaphragm 3 The setting of this flange 4 of journey, the thickness at raised 2 edges of increase cyclic spring, and then reaching prevents cyclic spring projection 2 from breaking The phenomenon split.

And on the shape of gas outlet 11, the present embodiment preferably gas outlet 11 is set to it is horn-like, when gas or liquid When body is by gas outlet 11, because the opening of gas outlet 11 becomes larger, therefore, liquid or gas can gush to surrounding It is dynamic, then impact again on diaphragm 3, increase the contact area between gas or liquid and diaphragm 3, prevent diaphragm 3 due to Local pressure is excessive and causes rupture.

Embodiment two：

The difference of embodiment two and embodiment one is to open up the annular caulking groove 32 with the cooperation of annular lug 8 on diaphragm 3, When diaphragm 3 and disk body 1 are assembled together, some is entrenched in annular caulking groove 32 to annular lug 8, further improves ring Fitting between shape projection 8 and diaphragm 3, improves sealing property, and on the depth of annular caulking groove 32, the preferred ring of the present embodiment The depth of shape caulking groove 32 is less than the height of annular lug 8, and when this belt transect diaphragm 3 is fitted with disk body 1, annular lug 8 can make diaphragm 3 Deform, and then annular lug 8 is brought into close contact with the annular bottom of caulking groove 32.

Described above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications It should be regarded as protection scope of the present invention.

Claims

1. a kind of porous menbrane aerator, including disk body and the diaphragm set of being fitted with disk body, it is characterized in that：Set on the diaphragm Having inwall to be fitted with disk body outer wall, the cyclic spring set is raised, and the raised inwall of the cyclic spring is set provided with concentric It is fixedly connected and around annular groove axis with annular groove side wall provided with several in the annular groove put, the annular groove The contiguous block of uniform circular distribution, the disk body sidewall is provided with the fixture block that several can be stretched into annular groove, several institutes State contiguous block and annular groove is divided into several necks coordinated with fixture block, the depth of the neck is less than the length and card of fixture block Groove sidewall can fit with fixture block side wall, and the disk body is provided with gas outlet and using gas outlet as the annular lug in the center of circle, the ring Shape projection offsets with diaphragm.

2. porous menbrane aerator according to claim 1, it is characterized in that：Being formed between fixture block described in adjacent two can be with being connected The arc surface of block side wall laminating.

3. porous menbrane aerator according to claim 1, it is characterized in that：The gas outlet is in horn-like.

4. porous menbrane aerator according to claim 3, it is characterized in that：The diaphragm surrounds convex annular provided with several The air-vent that block is set, a diameter of 3-5mm of the air-vent.

5. porous menbrane aerator according to claim 1, it is characterized in that：The thickness of the disk body be more than fixture block thickness and One end of disk body one end and fixture block provided with gas outlet is in same plane.

6. porous menbrane aerator according to claim 1, it is characterized in that：The inner ring surface of the cyclic spring projection is towards the back of the body The side of diaphragm is extended to form flange.