CN104556363A - Gas dispersion device and application thereof - Google Patents

Gas dispersion device and application thereof Download PDF

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Publication number
CN104556363A
CN104556363A CN201310522780.1A CN201310522780A CN104556363A CN 104556363 A CN104556363 A CN 104556363A CN 201310522780 A CN201310522780 A CN 201310522780A CN 104556363 A CN104556363 A CN 104556363A
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China
Prior art keywords
wall
gas dispersion
dispersion apparatus
inlet pipe
gas
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CN201310522780.1A
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Chinese (zh)
Inventor
张超
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Sinopec Research Institute of Petroleum Processing
China Petroleum and Chemical Corp
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Sinopec Research Institute of Petroleum Processing
China Petroleum and Chemical Corp
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Priority to CN201310522780.1A priority Critical patent/CN104556363A/en
Publication of CN104556363A publication Critical patent/CN104556363A/en
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/02Aerobic processes
    • C02F3/12Activated sludge processes
    • C02F3/1278Provisions for mixing or aeration of the mixed liquor
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2203/00Apparatus and plants for the biological treatment of water, waste water or sewage
    • C02F2203/006Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

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

Abstract

The invention discloses a gas dispersion device which comprises a cavity (2) as well as a gas inlet (3), wherein the cavity (2) is defined by a wall (1); the gas inlet (3) goes to the cavity (2); gas diffusion holes (5) are formed in the surface of the wall (1); a gas inlet tube (6) is arranged in the cavity (2); one end of the gas inlet tube (6) is communicated with the gas inlet (3); the other end of the gas inlet tube (6) is closed; gas holes (7) are formed in the wall of the gas inlet tube (6). The invention further discloses application of the gas dispersion device in sewage treatment. The gas dispersion device disclosed by the invention is applied to sewage treatment, the diameter of each diffused bubble is smaller than 1mm, and the oxygen transfer efficiency can be kept greater than 30% and can be up to 35-40% at most.

Description

A kind of gas dispersion apparatus and application thereof
Technical field
The present invention relates to a kind of gas dispersion apparatus and application thereof.
Background technology
In sewage treatment process, the pressurized gas that compressed air unit (as air compressor machine, gas blower) produces to sewage oxygenation, provides the gas needed for microorganism by aeration tube or aeration head.Aeration adopts corresponding equipment and technical measures, and the oxygen in air is transferred in mixed solution by process that microorganism utilizes.The Main Function of aeration, except oxygen supply, also works the effect of being uniformly mixed, and makes the active sludge in aeration tank keep suspended state, fully contacts mixing, thus improve mass-transfer efficiency, ensure the treatment effect of aeration tank with sewage.
Blast aeration system is made up of gas blower, aerating apparatus and airflow pipe.Gas blower by air by a series of Cemented filling to the aerating apparatus be installed on bottom aeration tank, through aerating apparatus, the oxygen in air is transferred in mixed solution and goes.
Gas dispersion apparatus in blast aeration system is mainly divided into the type such as microbubble, middle bubble, water impact.Wherein, (1) fine bubble diffuser adopts porous material such as haydite, coarse porcelain etc. to mix with the suitable tackiness agent as resol one class, at high temperature be sintered into the form of diffuser plate, diffuser tube and diffusion shell, shortcoming is that atmospheric pressure lost is large, easy blocking, the air of feeding should pass through filtration treatment in advance.(2) the bubble diameter 2-6mm that in, air bubble aerator produces, in the past mainly perforated pipe.Perforated pipe is made up of steel pipe or plastics tubing, diameter 25-50mm, opens the eyelet of diameter 3-5mm, spacing 50-100mm at tube wall two side lower part.Perforated pipe not easily blocks, simple structure, and resistance is little; But the utilization ratio of oxygen is low, and dynamic efficiency is low.(3) water impact formula aerator is based on jetting type air-diffuser, the kinetic energy of the mud utilizing water pump to squeeze into, the high velocity flow of water mixed liquid, suck large quantity of air, mud, water, gas mixed solution intense mixing in trunnion is stirred, bubble is pulverized for vaporific, oxygen is transferred to rapidly in mixed solution, and oxygen transfer efficiency can reach 20%, but dynamic efficiency is not high.
Summary of the invention
Object of the present invention is for providing a kind of new gas dispersion apparatus, and the bubble size adopting gas dispersion apparatus of the present invention to diffuse out is less, and oxygen transfer efficiency is higher.
To achieve these goals, the invention provides a kind of gas dispersion apparatus for sewage disposal, this gas dispersion apparatus comprises the cavity 2 surrounded by wall 1, the surface of described wall 1 is provided with gas diffusion through hole 5, described device also comprises the inlet mouth 3 leading to described cavity 2, wherein, is provided with inlet pipe 6 in described cavity 2, one end of described inlet pipe 6 communicates with described inlet mouth 3, the other end is closed, and tube wall is provided with pore 7.
The bubble diameter adopting gas diffuser provided by the invention to diffuse out is less than 1mm, and oxygen transfer efficiency can be stabilized in more than 30%, reaches as high as 35%-40%.
Preferably, on the outside surface of every square centimeter of wall 1, the number of described gas diffusion hole 5 is 1-30.
Preferably, described gas spreads the distance h between the central axis of through hole 5 and the centre of sphere is 0.3-3cm.
Preferably, the bore dia of described pore 7 is 0.5-10mm, and be preferably 1-5mm, porosity is 5-40%, is preferably 8-35%; Preferably, described pore 7 is arranged on tube wall along the central axis of inlet pipe 6.
Preferably, the volume of described cavity 2 is 30-4000ml.
Preferably, described cavity 2 is hollow ball.
Preferably, in described cavity 2, be also provided with the support frame 4 that cavity 2 is played a supporting role, and the support end of described support skeleton 4 is connected on the internal surface of wall 1.
Preferably, described support frame 4 and inlet pipe 6 all cross the centre of sphere, and mutually vertical.
Preferably, the central axis only centre of sphere of the pore 7 on described inlet pipe 6 tube wall.
Preferably, the other end of described inlet pipe 6 extends and is fixed in the spacing hole on the internal surface of wall 1, and the support end of described support frame 4 is fixed in the spacing hole of the internal surface of wall 1.
Preferably, described inlet pipe 6 is pipe, and pipe diameter is at least 5mm, is more preferably 8-30mm.
Preferably, the material forming described wall 1 is resilient material, described resilient material be selected from polyisoprene, styrene-butadiene rubber(SBR), polybutadiene rubber, ethylene-propylene rubber(EPR) and isoprene-isobutylene rubber one or more, the thickness of described wall 1 is 0.2-4cm, is preferably 0.5-2cm; Form described inlet pipe 6 identical or different, various independently selected from one or more in polyisoprene, styrene-butadiene rubber(SBR), polybutadiene rubber, ethylene-propylene rubber(EPR), isoprene-isobutylene rubber, vinylbenzene, polyolefine, urethane and polyester with the material forming described support frame 4.
Present invention also offers the application of described gas dispersion apparatus for sewage disposal.Under preferable case, under the inside and outside differential pressure of described gas diffuser is the using state of 1-100kPa, the bore dia of described gas diffusion through hole 5 is 0.2-1mm, and porosity is 1-20%.
Gas dispersion apparatus provided by the invention is applied to after in sewage disposal, aeration effect can be provided better, active sludge wherein is fully contacted with oxygen with sewage, thus improve mass-transfer efficiency, ensure aeration effect, make the better processing effect of sewage.In addition, adopt of the present invention preferred embodiment time, after stopping aeration, the distance spread between the central axis of through hole 5 and the centre of sphere due to described gas is 0.3-3cm, namely, the central axis only centre of sphere of described gas diffusion through hole 5, and the wall 1 forming described gas diffuser adopts resilient material, therefore, the closedown performance of gas diffusion hole is good, can suck-back be prevented, and not easily cause the blocking of through hole.
Other features and advantages of the present invention are described in detail in embodiment part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification sheets, is used from explanation the present invention, but is not construed as limiting the invention with embodiment one below.In the accompanying drawings:
Fig. 1 is the schematic diagram of a kind of embodiment that gas dispersion apparatus of the present invention is described;
Fig. 2 is the vertical view of gas dispersion apparatus described in explanatory view 1;
Fig. 3 is the sectional view of the X-Y plane of gas dispersion apparatus described in explanatory view 1;
Fig. 4 is the schematic diagram of the inlet pipe for described gas dispersion apparatus;
Fig. 5 is the schematic diagram of a kind of Sewage treatment systems of the present invention.
Description of reference numerals
1: wall 2: cavity 3: inlet mouth 4: support frame 5: gas diffusion through hole
6: inlet pipe 7: pore 8: termination 10: gas dispersion apparatus
Embodiment
Below the specific embodiment of the present invention is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
In the present invention, when not doing contrary explanation, the noun of locality such as " upper and lower, left and right " of use typically refers to reference to upper and lower, left and right shown in the drawings; " inside and outside " refers to profile inside and outside relative to each parts itself.
According to the present invention, gas dispersion apparatus comprises the cavity 2 surrounded by wall 1, the surface of described wall 1 is provided with gas diffusion through hole 5, described device also comprises the inlet mouth 3 leading to described cavity 2, wherein, be provided with inlet pipe 6 in described cavity 2, one end of described inlet pipe 6 communicates with described inlet mouth 3, the other end closes, and tube wall is provided with pore 7.
Adopt gas dispersion apparatus of the present invention, oxygen-containing gas (being generally pressurized air) is introduced in tracheae 6 by inlet mouth 3, be diffused in the cavity 2 surrounded by wall 1 by the pore 7 on inlet pipe 6 tube wall, and be again dispersed into as more tiny bubble by the gas diffusion hole 5 being distributed in wall 1 surface and from cavity 2 internal divergence to cavity 2 outside.On the one hand, the bubble spread out by the pore 7 of inlet pipe 6 is made again to become more tiny bubble through the diffusion of gas diffusion through hole 5, on the other hand, can be able to by described gas dispersion apparatus, bubble is evenly diffused in treatment sewage, to improve oxygen transfer efficiency.
According to the present invention, described cavity 2 is surrounded by wall 1.The selectable range forming the kind of the material of described wall 1 is wider, can select suitable material according to actual needs, as long as be suitable for forming gas diffusion through hole 5 on its surface and having certain bearing capacity.Under preferable case, in order to be easier to form gas diffusion through hole 5, and be beneficial to the self-closing of the gas diffusion through hole 5 when stopping aeration, the material forming described wall 1 can be various resilient material, described resilient material be preferably selected from polyisoprene, styrene-butadiene rubber(SBR), polybutadiene rubber, ethylene-propylene rubber(EPR) and isoprene-isobutylene rubber one or more, under normal circumstances, the thickness of described wall 1 is 0.2-4cm, is preferably 0.5-2cm.
According to the present invention, described gas diffusion hole 5 can be selected according to the actual needs in sewage treatment process in the distribution situation (i.e. quantity and distribution form) on wall 1 surface, under preferable case, in order to ensure aeration oxygen supply effect better, on the outside surface of every square centimeter of wall 1, the number of described gas diffusion hole 5 is 1-30, is preferably 2-20.Make the size of the bubble be diffused into outside cavity 2 less of to ensure in sewage treatment process to realize better, the dissolved oxygen amount of oxygen and active sludge are to the utilization ratio of oxygen, preferably under the inside and outside differential pressure of described gas diffuser is the using state of 1-100kPa, the bore dia of described gas diffusion through hole 5 is 0.2-1mm, and porosity is 1-20%.
According to the present invention, described gas diffusion through hole 5 can adopt the method for well known to a person skilled in the art to carry out in the generation type of wall 1 outside surface, such as, to be punctured through hole by mechanical type.Under preferable case, as shown in Figure 3, the distance h between the central axis of described gas diffusion through hole 5 and the centre of sphere is 0.3-3cm, is preferably 0.5-2cm.That is, the central axis only centre of sphere of described gas diffusion through hole 5.After stopping aeration, because the pressure of cavity 2 inside reduces, extraneous hydraulic pressure is easy to cause suck-back, therefore, adopt so self-closing performance of gas diffusion hole 5 that preferred embodiment can make better, and can suck-back be prevented, and not easily cause gas to spread the blocking of through hole 5.
According to the present invention, the volume of described cavity 2 can be arranged to suitable size according to the needs of aeration, and usually, the volume of described cavity 2 is 30-4000ml.The volume of described cavity 2 refers to: with the inwall of cavity for benchmark, calculates the volume of cavity 2.
According to the present invention, described cavity 2 can be different shape, and such as, column, square, rectangular parallelepiped etc., preferably, in order to avoid producing dead angle, and in order to easy to make, according to a concrete embodiment of the present invention, described cavity 2 is hollow ball.
According to the present invention, described inlet mouth 3 for introducing oxygen-containing gas, and is formed on the wall 1 of cavity 2.As long as the openings of sizes of inlet mouth 3 is adapted to the mouth of pipe size of inlet pipe 6, one end of described inlet pipe 6 is communicated with described inlet mouth 3, and compact siro spinning technology both ensureing.The method to set up of inlet mouth 3 can adopt the method for well known to a person skilled in the art to carry out.
According to the present invention, described inlet pipe 6 mainly plays the oxygen-containing gas (being generally pressurized air) introduced and sent into by the external world, and makes the effect that it spreads out from the pore 7 of inlet pipe 6 tube wall.That is, one end of described inlet pipe 6 is communicated with inlet mouth 3, in order to ensure that the oxygen-containing gas be all introduced into all spreads out from the pore 7 of inlet pipe 6 tube wall, preferably, as shown in Figure 4, other one end of described inlet pipe 6 is closed, as the other end utilizes termination 8 inlet pipe 6 to be sealed.In order to fix described inlet pipe 6 better, and make inlet pipe 6 also can play the effect of support frame, other one end of described inlet pipe 6 extends and is fixed on the internal surface of wall 1.Described fixing means can adopt and well known to a person skilled in the art any means.Such as, wall 1 is provided with spacing hole (blind hole), other one end of described inlet pipe 6 extends and is fixed in the spacing hole of the internal surface of wall 1.
According to the present invention, described support frame 4 mainly plays the effect supporting its inside cavity structure, and the support end of described support skeleton 4 is connected on the internal surface of wall 1.Avoid when after stopping aeration, because the pressure of inside cavity reduces, extraneous hydraulic pressure is excessive and cavity is out of shape by compressing.And described support frame 4 can be arranged on the inside of described cavity 2 in any suitable way, e.g., can be arranged in parallel, also can interlock (as orthogonal) is arranged.In addition, the quantity of described support frame 4 and shape also can carry out appropriate selection according to the support effect of inside cavity, and such as, can be A-frame, also can be support bar etc.The selectable range forming the kind of the material of described support frame 4 is wider, can select suitable material according to actual needs, as long as have certain rigidity can play the effect supporting cavity.Under preferable case, the material forming described support frame 4 be preferably selected from polyisoprene, styrene-butadiene rubber(SBR), polybutadiene rubber, ethylene-propylene rubber(EPR), isoprene-isobutylene rubber, polyolefins, polyurethanes, polyester one or more.In addition, the fixing means of described support frame 4 can also adopt and well known to a person skilled in the art any means, can also with reference to the fixing means of above-mentioned inlet pipe 6, that is, the support end of described support frame 4 is fixed in the spacing hole of the internal surface of wall 1.
According to the present invention, the quantity of described inlet pipe 6 suitably can be selected according to aeration rate, can be 1-2 bar usually, and the quantity of inlet mouth 3 is corresponding with the quantity of inlet pipe 6.Under preferable case, described inlet pipe 6 is pipe, and pipe diameter is at least 5mm, is preferably 8-30mm.In addition, the selectable range forming the kind of the material of described inlet pipe 6 is wider, can select suitable material according to actual needs.Forming described inlet pipe 6 can be identical or different with the material forming described support frame 4.Under preferable case, be easier to form pore 7 on the tube wall of inlet pipe 6 to meet, it can be made again to play the effect of support frame, under preferable case, the material forming described inlet pipe 6 be preferably selected from polyisoprene, styrene-butadiene rubber(SBR), polybutadiene rubber, ethylene-propylene rubber(EPR), isoprene-isobutylene rubber, polyolefine, urethane and polyester one or more.
According to the present invention, the described pore 7 that the tube wall of described inlet pipe 6 is arranged is mainly used in oxygen-containing gas being formed bubble and introduces in cavity, more tiny after being spread by the pore diffusion through hole 5 on wall 1 surface to make bubble, the bore dia of described pore 7 is 0.5-10mm, is preferably 1-5mm.Described pore 7 can be selected according to the actual needs in sewage treatment process and the gas volume being flooded to cavity 2 outside in the distribution situation (i.e. quantity and distribution form) of the tube wall of inlet pipe 6, under preferable case, in order to ensure aeration oxygen supply effect better, the distribution of pore 7 on inlet pipe 6 tube wall makes its porosity be 5-40%, is preferably 8-35%.The generation type of described pore 7 on the tube wall of inlet pipe 6 can adopt the method for well known to a person skilled in the art to carry out, such as, to be punctured through hole by mechanical type.According to a kind of concrete embodiment of the present invention, described pore 7 is arranged on tube wall along the central axis of inlet pipe 6.The benefit of such design is uniform air distribution.
According to a concrete embodiment of the present invention, as shown in Figure 1, described cavity 2 is hollow ball, and under preferable case, described support frame 4 and inlet pipe 6 all cross the centre of sphere, and mutually vertical.Article two, support frame 4 is mutually vertical with Y direction along X-direction respectively, and an inlet pipe 6 is vertical with two support frames 4 along Z-direction, and object makes spheroid uniform force.Under preferable case, as shown in figs. 1 and 4, the central axis only centre of sphere of the pore 7 on described inlet pipe 6 tube wall, and inlet pipe 6 and the position of the inlet pipe 6 of the junction of support frame 4 do not arrange pore 7 so that arrange the support frame 4 perpendicular with inlet pipe 6.Under preferable case, as shown in Figure 2, described gas diffusion through hole 5 is uniformly distributed at the whole circumferential surface of wall 1.And more preferably meeting under the inside and outside differential pressure of described gas diffuser is the using state of 1-100kPa, the bore dia of described gas diffusion through hole 5 is 0.2-1mm, and porosity is the requirement of 1-30%.
The method adopting gas diffuser of the present invention to carry out sewage disposal is specifically described in detail below by Fig. 1-5.
As Figure 1-4, according to a kind of concrete embodiment of the present invention, it is styrene-butadiene rubber(SBR) that described gas dispersion apparatus comprises by wall 1(material, wall thickness is 10mm) volume of spherical hollow space 2(cavity that surrounds is 60ml), the surface of described wall 1 is provided with gas diffusion through hole 5(on the outside surface of every square centimeter of wall 1, the number of described gas diffusion hole 5 is 6, distance h between the central axis of described gas diffusion through hole 5 and the centre of sphere is 0.8cm), described device also comprises inlet mouth 3, being provided with 1 inlet pipe 6(material in described spherical hollow space 2 is styrene-butadiene rubber(SBR)) and be styrene-butadiene rubber(SBR) to 2 support frame 4(materials that cavity is played a supporting role), and described support frame 4 and inlet pipe 6 all cross the centre of sphere, article 2, support frame 4 is mutually vertical with Y-direction in X direction respectively, article 1, inlet pipe 6 is vertical with 2 support frames 4 respectively along Z-direction.Along inlet pipe 6(pipe on the tube wall of described inlet pipe 6, pipe diameter is 10mm, material is styrene-butadiene rubber(SBR)) the central axial direction number that is provided with 8 every venting holes of venting hole 7(be 8, hole diameter is 3mm, porosity is 20%, and the central axis only centre of sphere of pore 7 on described inlet pipe 6 tube wall).One end of described inlet pipe 6 is communicated with inlet mouth 3, the other end is the sealed structure sealed by termination 8, and this other end extends and is fixed in the spacing hole (not shown) on the internal surface of wall 1, the termination at the two ends of 2 described support frames 4 is fixed in the spacing hole (not shown) of the internal surface of wall 1.Gas dispersion apparatus of the present invention is by two hemispheric shells and inner skeleton are assembled.
As shown in Figure 5, place the above-mentioned preferred gas dispersion apparatus 10 of the present invention in aeration tank, and introduce in aeration tank by sewage (COD value is 500mg/L) and active sludge (3000mg/L), sewage hydraulic detention time is 3h.Pressurized air is introduced in inlet pipe 6 by pump by the inlet mouth 3 of gas dispersion apparatus of the present invention, the inside of the cavity 2 surrounded by wall 1 is diffused into by the pore 7 on inlet pipe 6 tube wall, and be again dispersed into as more tiny bubble by the gas diffusion hole 5 being distributed in wall 1 surface and be diffused into from cavity 2 inner homogeneous outside cavity 2 (the inside and outside differential pressure of described gas diffuser is the using state of 35kPa, the bore dia of described gas diffusion through hole 5 is 0.8mm, porosity is 15%), enter sewage fully to contact with sewage with active sludge, recording oxygen transfer efficiency is 37%.
Wherein, oxygen transfer efficiency K lacalculate according to the following formula:
dC dt = ( K La C s ′ - R ) - K La C
Wherein, t is the time, and C is the concentration of oxygen, C s' be the dissolved oxygen saturation concentration of mixed solution, R is the oxygen consumption rate of active sludge.
More than describe the preferred embodiment of the present invention in detail; but the present invention is not limited to the detail in above-mentioned embodiment, within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each concrete technical characteristic described in above-mentioned embodiment, in reconcilable situation, can be combined by any suitable mode, in order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible array mode.
In addition, also can carry out arbitrary combination between various different embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.

Claims (14)

1. a gas dispersion apparatus, this gas dispersion apparatus comprises the cavity (2) surrounded by wall (1), the surface of described wall (1) is provided with gas diffusion through hole (5), described device also comprises the inlet mouth (3) leading to described cavity (2), it is characterized in that, be provided with inlet pipe (6) in described cavity (2), one end of described inlet pipe (6) communicates with described inlet mouth (3), the other end closes, and tube wall is provided with pore (7).
2. gas dispersion apparatus according to claim 1, wherein, on the outside surface of every square centimeter of wall (1), the number of described gas diffusion hole (5) is 1-30.
3. gas dispersion apparatus according to claim 1 and 2, wherein, the distance h between the central axis of described gas diffusion through hole (5) and the centre of sphere is 0.3-3cm.
4. gas dispersion apparatus according to claim 1, wherein, the bore dia of described pore (7) is 0.5-10mm, and be preferably 1-5mm, porosity is 5-40%, is preferably 8-35%; Preferably, described pore (7) is arranged on tube wall along the central axis of inlet pipe (6).
5. gas dispersion apparatus according to claim 1, wherein, the volume of described cavity (2) is 30-4000ml.
6. according to the gas dispersion apparatus in claim 1-5 described in any one, wherein, described cavity (2) is hollow ball.
7. gas dispersion apparatus according to claim 6, wherein, be also provided with the support frame (4) of playing a supporting role to cavity (2), and the support end of described support skeleton (4) is connected on the internal surface of wall (1) in described cavity (2).
8. gas dispersion apparatus according to claim 7, wherein, described support frame (4) and inlet pipe (6) all cross the centre of sphere, and mutually vertical.
9. gas dispersion apparatus according to claim 8, wherein, the central axis only centre of sphere of the pore (7) on described inlet pipe (6) tube wall.
10. according to the gas dispersion apparatus in claim 7-9 described in any one, wherein, the other end of described inlet pipe (6) extends and is fixed in the spacing hole on the internal surface of wall (1), and the support end of described support frame (4) is fixed in the spacing hole of the internal surface of wall (1).
11. according to the gas dispersion apparatus in claim 7-9 described in any one, and wherein, described inlet pipe (6) is pipe, and pipe diameter is at least 5mm, is preferably 8-30mm.
12. according to the gas dispersion apparatus in claim 1-11 described in any one, wherein, the material forming described wall (1) is resilient material, described resilient material be selected from polyisoprene, styrene-butadiene rubber(SBR), polybutadiene rubber, ethylene-propylene rubber(EPR) and isoprene-isobutylene rubber one or more, the thickness of described wall (1) is 0.2-4cm, is preferably 0.5-2cm; Form described inlet pipe (6) identical or different, various independently selected from one or more in polyisoprene, styrene-butadiene rubber(SBR), polybutadiene rubber, ethylene-propylene rubber(EPR), isoprene-isobutylene rubber, vinylbenzene, polyolefine, urethane and polyester with the material forming described support frame (4).
In 13. claim 1-12, gas dispersion apparatus described in any one is in the application for sewage disposal.
14. application according to claim 13, wherein, under the inside and outside differential pressure of described gas diffuser is the using state of 1-100kPa, the bore dia of described gas diffusion through hole (5) is 0.2-1mm, and porosity is 1-20%.
CN201310522780.1A 2013-10-29 2013-10-29 Gas dispersion device and application thereof Pending CN104556363A (en)

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CN108706698A (en) * 2018-06-08 2018-10-26 程度 A kind of water tank automatic cleaning sterilizing device for environmentally friendly water process
CN110354705A (en) * 2019-08-14 2019-10-22 湖南亿纳环保科技有限公司 Micro air bubble method for generation and micro-bubble generator
CN111533326A (en) * 2020-07-09 2020-08-14 天津万峰环保科技有限公司 Ozone catalytic reaction device

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CN108706698A (en) * 2018-06-08 2018-10-26 程度 A kind of water tank automatic cleaning sterilizing device for environmentally friendly water process
CN110354705A (en) * 2019-08-14 2019-10-22 湖南亿纳环保科技有限公司 Micro air bubble method for generation and micro-bubble generator
CN111533326A (en) * 2020-07-09 2020-08-14 天津万峰环保科技有限公司 Ozone catalytic reaction device
CN111533326B (en) * 2020-07-09 2020-10-20 天津万峰环保科技有限公司 Ozone catalytic reaction device

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Application publication date: 20150429