CN107055638B - Perforated plug-in type aeration head - Google Patents

Perforated plug-in type aeration head Download PDF

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Publication number
CN107055638B
CN107055638B CN201710193823.4A CN201710193823A CN107055638B CN 107055638 B CN107055638 B CN 107055638B CN 201710193823 A CN201710193823 A CN 201710193823A CN 107055638 B CN107055638 B CN 107055638B
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China
Prior art keywords
perforated
hook
hole
socket
plug
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CN107055638A (en
Inventor
陆少鸣
杨立
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South China University of Technology SCUT
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South China University of Technology SCUT
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/12—Activated sludge processes
    • C02F3/20—Activated sludge processes using diffusers
    • C02F3/201—Perforated, resilient plastic diffusers, e.g. membranes, sheets, foils, tubes, hoses
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/14—Maintenance of water treatment installations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Microbiology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)

Abstract

The invention discloses a perforation plug-in type aeration head; comprises an open pore cover plate with a hook, a single pore rubber diaphragm, an open pore socket with a hook and a rubber gasket; the rubber diaphragm is arranged in the positioning groove of the perforated cover plate, the rubber gasket is sleeved on the periphery of the plug, the plug of the perforated socket with the hook is inserted into the air hole of the perforated air distribution pipe, and the straight hook of the perforated cover plate hooks the flat plate on the step of the perforated socket with the hook; the rubber diaphragm is clamped between the cover plate and the top plate of the perforated socket; the arc-shaped hook with the opening socket of the hook passes through the air hole to hook the inner wall of the perforated air distribution pipe; the rubber gasket is positioned at the upper end of the perforated gas distribution pipe. Compared with the existing aeration device, the invention adopts the perforation insertion type installation, has simple and fast installation, convenient maintenance, small released bubbles and anti-blockage of rubber air holes, and is suitable for the air flushing process in water treatment and the oxygenation of water treatment facilities needing air supply.

Description

Perforated plug-in type aeration head
Technical Field
The invention relates to a perforation insertion type aeration head for air flushing or oxygenation aeration of a water treatment facility, which can be used for air flushing of the water treatment facility and can also be used for providing oxygen required by water microorganisms in the water treatment facility.
Background
In water treatment facilities in the field of water supply and drainage, the water treatment facilities are usually cleaned by air flushing, and a large amount of compressed air needs to be blown into the facilities; in a biological treatment facility, aerobic microorganisms are required to consume oxygen for degrading pollutants in water, and aeration is usually adopted for supplying oxygen. The air flushing or aeration oxygen supply needs to distribute air uniformly and prevent the aeration head from being blocked. At present, the common air supply equipment for air flushing or oxygen charging aeration in water treatment facilities comprises a micropore aerator, a single-pore membrane aerator, a perforated pipe and the like.
The gas used for gas flushing is generally larger than the oxygen supply aeration amount, so a perforated pipe is generally used for gas supply in the gas flushing process. In the process of using the perforated pipe for air supply, the aperture is generally not less than 5mm in order to prevent blocking of the air holes. However, the larger pore size tends to result in less uniform gas distribution.
The oxygen utilization efficiency of the microporous aerator is high, but the structure is complex, the installation and the maintenance are inconvenient, and the manufacturing cost is higher; the single-hole membrane aerator is high in air oxygen utilization efficiency and not easy to block, but a special pipeline is needed during installation; perforated pipe aeration is a method in which holes are directly formed in an aeration pipe to allow air to be released from the holes. The method is very simple and convenient, has low manufacturing cost, but has low utilization efficiency of air oxygen, difficult uniform aeration and easy blockage of pipe holes.
Disclosure of Invention
The invention aims to solve the problems and provides a perforated plug-in aeration head which has the advantages of simple and reasonable structure, firmness, durability, simple and convenient installation, low manufacturing cost, uniform air distribution, difficult blockage, small diameter of released bubbles and large distribution range.
The invention is realized by the following technical scheme:
a perforation plug-in type aeration head comprises a perforated cover plate with a hook, a single-hole rubber diaphragm, a perforated socket with a hook and a rubber gasket;
the middle part of the perforated cover plate is provided with a central hole, the periphery of the lower end of the middle part is provided with a positioning groove, and the edge of the perforated cover plate extends downwards to form a straight hook;
the center of the single-hole rubber diaphragm is provided with a diaphragm hole, and the outer edge of the single-hole rubber diaphragm is an O-shaped solid sealing ring;
the top of the perforated socket with the hook is a flat plate, steps are arranged on the peripheral edge of the flat plate, a socket center hole is formed in the middle of the flat plate, a plurality of arc-shaped plugs are uniformly arranged at the lower end of the flat plate at intervals along the circumference of the socket center hole, and an arc-shaped hook is arranged at the bottom of each arc-shaped plug;
a through hole is formed in the center of the rubber gasket;
the rubber diaphragm is arranged in the positioning groove of the perforated cover plate, the rubber gasket is sleeved on the periphery of the plug, the plug of the perforated socket with the hook is inserted into the air hole of the perforated air distribution pipe, and the straight hook of the perforated cover plate hooks the flat plate on the step of the perforated socket with the hook; the rubber diaphragm is clamped between the cover plate and the top plate of the perforated socket; the arc-shaped hook with the opening socket of the hook passes through the air hole to hook the inner wall of the perforated air distribution pipe; the rubber gasket is positioned at the upper end of the perforated gas distribution pipe;
the aperture of the membrane hole of the single-hole rubber membrane is 1-3 mm, and the aperture of the central hole of the socket is 5-8 mm.
To further achieve the object of the present invention, it is preferable that the number of the circular arc plugs is 3.
Preferably, the aperture of the central hole of the cover plate is 9-10 mm.
Preferably, the pore diameter of the air hole on the perforated air distribution pipe is 0.5mm larger than the outer diameter of the plug.
Preferably, the outer diameter of the plug is 2-3 mm larger than the inner diameter of the plug.
Preferably, the diameters of the rubber film hole and the central hole of the socket are respectively 2-3 mm and 6-8 mm.
Preferably, the diameters of the rubber film hole and the central hole of the socket are 1-2 mm and 5-7 mm respectively.
The rubber diaphragm is arranged in a positioning groove of a perforated cover plate, is clamped between the cover plate and a perforated socket top plate and is arranged in an air hole of a perforated pipe; a rubber diaphragm hole is formed in the center of the rubber diaphragm, and the outer edge of the diaphragm is an O-shaped solid sealing ring; when the aeration pipe is installed, the rubber gasket is sleeved on the plug, the assembled perforation insertion type aeration head is forcibly inserted into the air hole, the hook is buckled on the lower edge of the air hole by virtue of the elasticity of the arc plug, and the perforation socket can be tightly buckled on the inner wall of the perforation air distribution pipe by virtue of the elasticity of the pressed rubber gasket and the acting force of the hook; the rubber gasket also has a sealing function, and air in the perforated air distribution pipe is basically discharged outwards through the central hole of the socket; when the engineering runs, air is diffused outwards from the center hole of the cover plate through the air holes in the perforated air distribution pipe, the center hole of the socket and the rubber film hole; when the maintenance is needed, the cover plate hook is broken off outwards, and the cover plate and the rubber diaphragm can be detached. The center of the single-hole rubber diaphragm is provided with a small hole with the diameter of 1-3 mm, the aperture of the center hole of the socket is 5-8 mm, a gradual change process of air inlet from the large hole and air outlet from the small hole is formed, air distribution is uniform, and air hole blockage is prevented.
The invention has the beneficial effects that: the perforated inserted aeration head can be used for uniform gas distribution in the gas flushing process during backwashing and can also be used for aeration oxygen supply in facilities. Because the air is discharged from the small holes, the air distribution is uniform, the pore diameter of the central hole of the socket can be increased to prevent the blockage of the air hole, and the air supply device is particularly suitable for the air supply process and the aeration oxygen supply process during air flushing in a sewage biological treatment facility.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the structure is simple and reasonable, and the installation and the overhaul are simple and convenient by adopting the jack type installation;
2. low price, firmness and durability;
3. the released bubbles have small diameter, large distribution range and good gas distribution uniformity;
4. the diameter of the aeration head socket can be increased to prevent the air holes from being blocked.
Drawings
Fig. 1 is a schematic structural view of a perforated insert type aeration head according to the present invention.
Fig. 2 is an exploded view of fig. 1.
Fig. 3 is a top view of the vent cover plate of fig. 1.
Fig. 4 is a top view of the single hole rubber diaphragm of fig. 1.
Fig. 5 is a top view of the apertured receptacle with hooks of fig. 1.
Fig. 6 is a schematic view of the working state of the perforated insert type aeration head of the present invention.
The figures show that: the rubber gasket comprises a perforated cover plate 1, a single-hole rubber diaphragm 2, a perforated socket 3 with a hook, a rubber gasket 4, a perforated gas distribution pipe 5, a cover plate center hole 6, a diaphragm hole 7, a socket center hole 8, a gas hole 9, a positioning groove 10, a straight hook 11, an O-shaped solid sealing ring 12, a flat plate 13, a plug 14 and an arc-shaped hook 15.
Detailed Description
As shown in fig. 1 and 2, the perforated plug-in aeration head comprises an perforated cover plate 1 with a hook, a single-hole rubber diaphragm 2, a perforated socket 3 with a hook and a rubber gasket 4.
As shown in fig. 1-3, the perforated cover plate 1 has a central hole 6 in the middle, a positioning groove 10 at the lower end of the middle, and a straight hook 11 extending downward from the edge.
As shown in fig. 1, 2 and 4, the center of the single-hole rubber diaphragm 2 is provided with a diaphragm hole 7, and the outer edge is provided with an O-shaped solid sealing ring 12.
As shown in fig. 1, 2 and 5, the top of the opening socket 3 with the hook is a flat plate 13, the peripheral edge of the flat plate 13 is provided with steps, the middle part of the flat plate 13 is provided with a socket central hole 8, the lower end of the flat plate 13 is uniformly provided with a plurality of arc-shaped plugs 14 at intervals along the circumference of the socket central hole 8, and the bottom of each arc-shaped plug 14 is provided with an arc-shaped hook 15; the number of the circular arc type plugs 14 is preferably 3.
As shown in fig. 1 and 2, the rubber gasket 4 is centrally provided with a through hole.
As shown in fig. 1 and fig. 6, the rubber diaphragm 2 is arranged in a positioning groove 10 of the perforated cover plate 1, the rubber gasket 4 is sleeved on the periphery of a plug 14, the plug 14 of the perforated socket 3 with a hook is inserted into an air hole 9 of the perforated air distribution pipe 5, and a straight hook 11 of the perforated cover plate 1 hooks a flat plate 13 on a step of the perforated socket 3 with a hook; the rubber diaphragm 2 is clamped between the cover plate 1 and the perforated socket top plate 13; the arc-shaped hook 15 of the opening socket 3 with the hook passes through the air hole 9 to hook the inner wall of the perforated air distribution pipe 5; the rubber gasket 4 is positioned at the upper end of the perforated gas distribution pipe 5. The aperture of a membrane hole 7 of the single-hole rubber membrane is 1-3 mm, and the aperture of a central hole 8 of the socket is 5-8 mm; the aperture of the central hole 6 of the cover plate is 9-10 mm.
When the device is installed, the rubber gasket 4 is firstly sleeved on the plug 14, the plug 14 of the assembled opening socket 3 with the hook is forcibly inserted into the air hole 9 of the perforated air distribution pipe 5, the arc-shaped hook 15 is buckled on the lower edge of the air hole 9 by virtue of the elasticity of the arc-shaped plug 14, and the opening socket 3 with the hook can be tightly buckled on the inner wall of the perforated air distribution pipe 5 by virtue of the elasticity of the pressed rubber gasket 4 and the acting force of the arc-shaped hook 15; the rubber gasket 4 also has a sealing function, and air in the perforated air distribution pipe 5 is basically discharged outwards through the central hole 8 of the socket.
The lower part of the perforated socket 3 with the hook is provided with 3 arc-shaped plugs 14, the inner diameter of each plug 14 is the aperture of a central hole 8 of the socket, the central hole 8 is an air outlet channel of the whole perforated socket with the hook, and the aperture size of the central hole is the same as the inner diameter of each plug 14; the lower end of the plug 14 is provided with an arc-shaped hook 15, the inner diameter of the arc-shaped hook 15 is equal to the wall thickness of the material, and the outer diameter of the arc-shaped hook 15 is equal to the thickness of the material and is 2-3 mm larger than the inner diameter of the plug 14; the aperture of the air hole 9 on the perforated air distribution pipe 5 is 0.5mm larger than the outer diameter of the plug 14.
The perforated cover plate 1 is provided with a central hole 6, the two walls are provided with hooks 11, the cover plate 1 and the rubber diaphragm 2 are aligned with the central hole 8 of the socket and pressed downwards with hands during installation, the straight hooks 11 on the perforated cover plate buckle the lower edge of the perforated socket top plate 13 of the perforated socket 3 with the hooks, the perforated cover plate 1 and the rubber diaphragm 2 are tightly buckled on the socket top plate 13 by the elasticity of the pressed rubber diaphragm 2 and the acting force of the straight hooks 11, and air is diffused outwards from the central hole 6 of the cover plate; during maintenance, the straight hook 11 is broken off outwards, and the perforated cover plate 1 and the single-hole rubber diaphragm 2 can be detached.
The perforated inserted aerator can be used for air supply process and aeration oxygen supply process when air is flushed in sewage biological treatment facilities, and the application of the perforated inserted aerator depends on the sizes of the rubber membrane holes and the central hole diameters of the sockets. The aperture range of the rubber membrane hole 7 is generally between 1 mm and 3mm, and the aperture range of the central hole 8 of the socket is correspondingly between 5mm and 8 mm; when the perforated pipe is used for air distribution, the aperture is required to be not less than 5 mm. When the water treatment facility is subjected to air washing, the required apertures of the rubber membrane hole 7 and the socket central hole 8 are larger, namely 2-3 mm and 6-8 mm, so that the rubber membrane hole can be used for the air washing process when the larger aperture is adopted; and for guaranteeing higher oxygen utilization ratio, the required bubble diameter is small enough, therefore when adopting less aperture, is 1 ~ 2mm and 5 ~ 6mm respectively, and this perforation bayonet aeration head is applicable to and oxygenates the aeration to water treatment facilities.
When the invention works, air is diffused outwards from the cover plate central hole 6 through the air hole 9 on the perforated air distribution pipe 5, the socket central hole 8 and the rubber film hole 7; compressed air passes through a central hole 8 of the socket and passes through a small rubber film hole 7 with the diameter of 1-3 mm in the center of the single-hole rubber film 2, and is continuously discharged in a micro-bubble shape, because the outer edge of the single-hole rubber film 2 is an O-shaped solid sealing ring, a uniform air cushion layer can be formed, and the air is in a turbulent flow state, so that the compressed air in the turbulent flow state flows out through the rubber film hole 7 under the action of pressure, and a fan-shaped micro-bubble flow with a large range can be formed; finally, the sewage enters the pool through the central circular hole 6 of the perforated cover plate 1, so that the aeration and gas distribution are uniform in the gas washing process, and the back washing or aeration effect is good.
The diameters of the central round hole 6 of the perforated cover plate 1 and the central hole 8 of the socket are larger, so the plug is not easy to block; air in the air supply line has little solid particle secretly and blocks up among the haplopore rubber diaphragm 2 the central little rubber diaphragm hole 7, the air pressure grow rapidly of this department, make the aperture of rubber diaphragm hole 7 prop big thereupon, prop when the aperture of rubber diaphragm hole 7 props big slightly to than the impurity particle grain diameter, the impurity particle just can be blown off by compressed air and bring into aquatic, haplopore rubber diaphragm 2 resumes normal operating condition again this moment, consequently, the difficult jam in rubber diaphragm hole 7 of haplopore rubber diaphragm 2. Therefore, the whole perforation insertion type aeration head has the effects of uniform air distribution during air flushing or aeration and difficult blockage.
In the prior art, the oxygen utilization efficiency of the microporous aerator is high, but the microporous aerator has a complex structure, is inconvenient to install and maintain and has higher manufacturing cost;
the single-hole membrane aerator is high in air oxygen utilization efficiency, not easy to block and resistant to stacking of biological ceramsite filter materials, but is special in structure and needs a special pipeline during installation;
perforated pipe aeration is a method in which holes are directly formed in an aeration pipe to allow air to be released from the holes. The method is very simple and convenient, has low manufacturing cost, but has low utilization efficiency of air oxygen, difficult uniform aeration and easy blockage of pipe holes.
Compared with the three types of aeration, the invention has the advantages of simple structure, convenient installation and maintenance, small diameter of released bubbles, large distribution range, difficult blockage, higher oxygen utilization efficiency and low manufacturing cost, and is embodied as follows:
(1) the aeration head is arranged in the air hole of the original perforated pipe, no extra special pipe is needed, and the structure is simple; the plug-in installation is adopted, the installation and maintenance are convenient, and the manufacturing cost is low;
(2) the single-hole rubber diaphragm of the aeration head has smaller membrane hole size, is uniform in aeration and is not easy to block;
(3) the aeration head of the invention adopts the design of the single-hole rubber membrane and the O-shaped solid sealing ring, and a uniform air cushion layer can be formed during aeration. Under the action of pressure, compressed air in a turbulent flow state passes through the small film holes in the center of the rubber diaphragm and is continuously discharged in a micro-bubble shape, a fan-shaped micro-bubble flow in a large range is formed, and the oxygen utilization efficiency is high.

Claims (7)

1. A perforation plug-in type aeration head is characterized in that: comprises an open pore cover plate with a hook, a single pore rubber diaphragm, an open pore socket with a hook and a rubber gasket;
the middle part of the perforated cover plate is provided with a central hole, the periphery of the lower end of the middle part is provided with a positioning groove, and the edge of the perforated cover plate extends downwards to form a straight hook;
the center of the single-hole rubber diaphragm is provided with a diaphragm hole, and the outer edge of the single-hole rubber diaphragm is an O-shaped solid sealing ring;
the top of the perforated socket with the hook is a flat plate, steps are arranged on the peripheral edge of the flat plate, a socket center hole is formed in the middle of the flat plate, a plurality of arc-shaped plugs are uniformly arranged at the lower end of the flat plate at intervals along the circumference of the socket center hole, and an arc-shaped hook is arranged at the bottom of each arc-shaped plug;
a through hole is formed in the center of the rubber gasket;
the rubber diaphragm is arranged in the positioning groove of the perforated cover plate, the rubber gasket is sleeved on the periphery of the plug, the plug of the perforated socket with the hook is inserted into the air hole of the perforated air distribution pipe, and the straight hook of the perforated cover plate hooks the flat plate on the step of the perforated socket with the hook; the rubber diaphragm is clamped between the cover plate and the top plate of the perforated socket; the arc-shaped hook with the opening socket of the hook passes through the air hole to hook the inner wall of the perforated air distribution pipe; the rubber gasket is positioned at the upper end of the perforated gas distribution pipe;
the aperture of the membrane hole of the single-hole rubber membrane is 1-3 mm, and the aperture of the central hole of the socket is 5-8 mm.
2. The perforated insert aerator as defined in claim 1, wherein the number of said circular arc type plugs is 3.
3. The perforated insert aeration head of claim 1, wherein the aperture of the center hole of the cover plate is 9-10 mm.
4. The perforated insert aeration head of claim 1, wherein the pore diameter of the pores of the perforated gas distribution pipe is 0.5mm larger than the outer diameter of the plug.
5. The perforated insert aeration head of claim 1, wherein the outer diameter of the plug is 2 to 3mm larger than the inner diameter of the plug.
6. The perforated plug-in aerator according to claim 1, wherein the apertures of the membrane holes of the single-hole rubber membrane and the central holes of the socket are 2-3 mm and 6-8 mm, respectively.
7. The perforated plug-in aerator according to claim 1, wherein the apertures of the membrane holes of the single-hole rubber membrane and the central holes of the socket are 1-2 mm and 5-7 mm, respectively.
CN201710193823.4A 2017-03-28 2017-03-28 Perforated plug-in type aeration head Active CN107055638B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710193823.4A CN107055638B (en) 2017-03-28 2017-03-28 Perforated plug-in type aeration head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710193823.4A CN107055638B (en) 2017-03-28 2017-03-28 Perforated plug-in type aeration head

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CN107055638A CN107055638A (en) 2017-08-18
CN107055638B true CN107055638B (en) 2020-06-19

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Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT413380B (en) * 2004-05-28 2006-02-15 Meyer Udo Dipl Ing DEVICE FOR ATTACHING A PERFORATED FAN MEMBRANE
CN100479906C (en) * 2007-04-30 2009-04-22 华南理工大学 Film-type boring aeration pipe
JP5349370B2 (en) * 2010-03-04 2013-11-20 株式会社クボタ Air diffuser and diffuser
CN203855462U (en) * 2014-05-26 2014-10-01 江苏裕隆环保有限公司 Novel rubber diaphragm aerator
CN205603333U (en) * 2016-04-01 2016-09-28 江苏荆溪环保设备有限公司 Rubber tubular microporous aerator
CN105776509B (en) * 2016-04-01 2019-04-26 江苏荆溪环保设备有限公司 A kind of platy fine bubble aerator

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