CN107673492B - Double-wall type perforated aerator pipe and aeration method thereof - Google Patents
Double-wall type perforated aerator pipe and aeration method thereof Download PDFInfo
- Publication number
- CN107673492B CN107673492B CN201711002088.0A CN201711002088A CN107673492B CN 107673492 B CN107673492 B CN 107673492B CN 201711002088 A CN201711002088 A CN 201711002088A CN 107673492 B CN107673492 B CN 107673492B
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- Prior art keywords
- wall
- aeration
- pipe
- double
- perforated
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- 238000005273 aeration Methods 0.000 title claims abstract description 139
- 238000005276 aerator Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000002002 slurry Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 10
- 238000007789 sealing Methods 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000009991 scouring Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
-
- 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
-
- 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
Landscapes
- 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)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a double-wall type perforated aerator pipe, which is characterized in that the aerator pipe is a double-layer aerator pipe with an inner wall and an outer wall, wherein an air hole is formed in the bottom of the inner wall, an aeration hole is formed in the outer wall, and an air passage is formed in a space between the inner wall and the outer wall. The double-walled perforated aeration pipe can thoroughly drain accumulated water in the perforated aeration pipe, and meanwhile, the phenomenon that the slurry outside the pipe flows back into the pipe when aeration is stopped is avoided, and the influence of the setting height of the aeration air hole is avoided.
Description
Technical Field
The invention relates to a double-wall type perforated aerator pipe. The device is mainly applied in the water treatment aeration process, through setting up the double-deck perforation aeration pipe that has inner wall and outer wall, can thoroughly discharge the interior bottom ponding of aeration pipe when the aeration, can effectively avoid muddy water to flow backward the aeration pipe when stopping the aeration, guarantees that perforation aeration pipe is inside unblocked.
Background
Perforated aeration pipes are common aeration devices in aeration processes. The perforated aeration pipe which is common at the present stage is provided with holes obliquely downwards in the horizontal direction, and the obliquely downwards sprayed gas not only has a good diffusion effect, but also has the effect of flushing the bottom of the pool to avoid mud accumulation. Some perforated aeration pipes adopt horizontal holes or inclined upward holes, and the hole forming mode has better gas diffusion effect, but the scouring effect of the bottom of the tank is poor. Some perforated aeration pipes use bottom openings which amplify to better pool bottom scouring effect but gas diffusion effect is poor. In summary, the perforated aerator pipe with the holes obliquely downwards has better overall effect, and is a common perforated aerator pipe at the present stage.
However, other types of perforated aeration pipes, except the perforated aeration pipe with the bottom open hole, all have the problem of gas-water two-phase layering during aeration. The higher the vent opening position, the smaller the available cross-sectional area of gas in the perforated aerator pipe, and the more limited the perforated aerator pipe opening position. Meanwhile, when the perforated aeration pipe stops aeration, the gas below the air holes in the perforated pipe overflows, and mud water outside the perforated pipe enters the pipe. Because the muddy water contains a large amount of sediment with various particle sizes, the sediment flowing back into the perforated pipe is easy to block the air holes, thereby blocking the perforated aeration pipe and affecting the aeration effect.
In order to solve the problem of gas-water two-phase layering in the perforated aeration pipe and the problem of mud water backflow after stopping aeration, it is necessary to develop a novel perforated aeration pipe, which can discharge accumulated water at the bottom of the perforated aeration pipe, avoid mud water backflow and ensure aeration effect.
Disclosure of Invention
The invention relates to a double-wall type perforated aeration pipe, wherein a special air passage is arranged at the bottom of the perforated aeration pipe, so that gas enters the air passage from the bottom of the perforated aeration pipe and is led to an air hole through the air passage to be discharged. The aeration device can completely remove water in the perforated aeration pipe, simultaneously avoid mud water backflow, and is not influenced by the setting height of the aeration air holes.
In order to achieve the above object, the technical scheme of the present invention is as follows: the double-walled type perforated aerator pipe is characterized in that the aerator pipe is a double-layer aerator pipe with an inner wall and an outer wall, an air hole is formed in the bottom of the inner wall, an aeration hole is formed in the outer wall, an air passage is formed in a space between the inner wall and the outer wall, one end of the perforated aerator pipe is used for air inlet, and a sealing plate is arranged at the other end of the perforated aerator pipe for sealing.
Further, the distance between the inner wall and the outer wall is the same as the diameters of the aeration holes on the inner wall and the aeration holes on the outer wall of the aeration pipe.
Further, the air holes and the aeration holes are located on the same cross section.
Further, a sealing plate is arranged between the inner wall and the outer wall of the air inlet end of the perforated aeration pipe to seal, and an air inlet is formed only at the end opening of the inner wall.
Further, the diameters of the air holes and the aeration holes are each 4 mm to 5 mm.
Further, the diameter of the aeration holes on the outer wall of the aeration pipe is 4-5 mm, the opening direction is alpha degrees upwards or downwards in the horizontal direction, and alpha is 0-90 degrees. The open space is 10 cm to 40 cm.
Further, the diameter of the outer wall is 20 mm to 40 mm, and the length of the aeration tube is 50 cm to 150 cm.
Further, the inner wall and the outer wall of the perforated aerator pipe are made of light corrosion-resistant materials, such as stainless steel or resin.
The invention also aims to provide an aeration method of the double-wall type perforated aeration pipe, which can completely remove water in the perforated aeration pipe, simultaneously avoid mud water backflow and is not influenced by the setting height of aeration holes.
In order to achieve the above object, the technical scheme of the present invention is as follows: an aeration method of a double-walled perforated aeration pipe is characterized in that the aeration pipe is a double-layered aeration pipe with an inner wall and an outer wall, an air hole is arranged at the bottom of the inner wall, an aeration hole is arranged on the outer wall, and an air passage is formed in a space between the inner wall and the outer wall;
the method comprises the following steps:
before aeration, the perforated aeration pipe is filled with water;
in the initial stage of aeration, gas enters an aeration pipe through an air inlet at the end part of the aeration pipe and gathers at the top part of the aeration pipe; as the gas continuously enters the aeration pipe, the gas at the top of the aeration pipe is more and more, the lower water body is gradually extruded, passes through the air holes at the bottom of the inner wall and the air passages between the inner wall and the outer wall, and is finally discharged from the aeration hole until all accumulated water in the aeration pipe is discharged;
and (5) normal aeration.
The double-layer aeration pipe with the inner wall and the outer wall is arranged, so that accumulated water in the perforated aeration pipe is completely discharged in the aeration process, and the mud water outside the pipe can be effectively prevented from flowing back after the aeration is finished. The perforated aeration pipe can ensure that no matter where the aeration holes are arranged, the accumulated water in the pipe can be completely removed in the aeration process, and the phenomenon that the gas flow is influenced by more water in the pipe is avoided. The perforated aeration pipe is provided with a bottom air passage, and the main function of the perforated aeration pipe is to ensure that aeration gas completely passes through the bottom air holes on the inner wall of the perforated aeration pipe before passing through the aeration holes, so that accumulated water in the perforated aeration pipe is thoroughly discharged. The invention can eliminate the limitation that the too high opening of the aeration holes can prevent the gas from normally flowing in the perforated aeration pipe.
Drawings
Fig. 1 is a plan view of a double-walled perforated aerator pipe.
FIG. 2 is a cross-sectional view of a double-walled perforated aerator pipe (with the air holes obliquely upward).
FIG. 3 is a cross-sectional view of a double-walled perforated aerator pipe (with the air holes obliquely downward).
Detailed Description
The invention is further described below with reference to the drawings and examples.
As shown in the figure, the embodiment of the invention is a double-wall type perforated aerator pipe, which mainly comprises a double-layer aerator pipe with an inner wall and an outer wall, wherein the bottom of the inner wall is provided with an air hole 2, the outer wall is provided with an aeration hole 3, and a space between the inner wall and the outer wall forms an air passage.
Wherein, one end of the perforated aeration pipe is provided with air inlet, the inner wall and the outer wall of the air inlet are communicated, and the other end is provided with a sealing plate for sealing.
The diameter of the outer layer 1 of the perforated aeration pipe is 20-40 mm, the length of the aeration pipe is 50-150 cm, the diameter of the inner layer is slightly smaller than that of the outer layer, and the distance between the inner layer and the outer layer is the same as the diameters of the air holes and the aeration holes. The diameters of the air holes 2 and the aeration holes 3 are 4 mm to 5 mm, the air holes are arranged at the bottom of the inner wall, the opening direction of the aeration holes is alpha degrees upwards or downwards in the horizontal direction, and alpha is 0 degrees to 90 degrees. The open space is 10 cm to 40 cm. The inner wall and the outer wall of the perforated aeration pipe are made of light corrosion-resistant materials, such as stainless steel or resin.
Before aeration, the perforated aeration pipe is filled with water. In the initial stage of aeration, gas starts to enter the aeration pipe and gathers at the top of the aeration pipe. As the gas continuously enters the aeration pipe, the gas at the top of the aeration pipe is more and more, the lower water body is gradually extruded, passes through the bottom air hole 2, passes through the space between the inner wall and the outer wall, and is finally discharged at the aeration hole 3, so that the accumulated water in the aeration pipe is avoided.
After aeration is finished, the existence of the air holes 2 in the perforated aeration pipe can prevent mud water outside the pipe from flowing back into the pipe, so that the air holes are effectively prevented from being blocked by mud and sand in the mud water.
It differs from the prior art in that:
1. compared with the existing perforated aeration pipe, the device provided by the invention has two layers of aeration pipes of the outer wall and the inner wall, and can completely discharge accumulated water in the perforated aeration pipe in the aeration process.
2. The air holes of the perforated aeration pipe can be obliquely upwards or downwards, and the gas flow state in the perforated aeration pipe can not be influenced.
3. Because the air hole is formed below the inner wall of the perforated aeration pipe, the mud water outside the pipe can be prevented from flowing back into the pipe, and the blocking condition of the perforated aeration pipe is reduced.
4. The aeration device can be installed in various aeration tanks adopting perforated aeration pipes, has light weight and simple installation, can be widely used in various newly-built or modified projects, and improves the aeration effect.
Claims (6)
1. The utility model provides a double-walled formula perforation aeration pipe, its characterized in that the aeration pipe is the double-deck aeration pipe that has inner wall and outer wall, the gas pocket is established to the inner wall bottom, the outer wall is equipped with the aeration hole, space formation air flue between inner wall and the outer wall, the stuffy board shutoff is established to perforation aeration pipe one end, set up the shrouding shutoff between inner wall and the outer wall of perforation aeration pipe air inlet one end, only form the air inlet at inner wall tip opening.
2. A double-walled perforated aerator pipe according to claim 1, wherein the spacing between the inner and outer walls is the same as the diameters of the aeration holes in the inner wall and the aeration holes in the outer wall of the aerator pipe.
3. A double-walled perforated aerator pipe according to claim 1, wherein the outer wall has a diameter of 20 mm to 40 mm and the aerator pipe has a length of 50 cm to 150 cm.
4. A double-walled perforated aerator pipe according to claim 1, wherein the diameter of the aeration holes in the outer wall of the aerator pipe is 4 mm to 5 mm, the direction of the openings is a degree of upward or downward in the horizontal direction, a is 0 degrees to 90 degrees, and the distance between the openings is 10 cm to 40 cm.
5. A double-walled perforated aerator pipe according to claim 1, wherein the perforated aerator pipe is made of a lightweight corrosion-resistant material.
6. An aeration method of a double-walled perforated aeration pipe is characterized in that the aeration pipe is a double-layered aeration pipe with an inner wall and an outer wall, an air hole is arranged at the bottom of the inner wall, an aeration hole is arranged on the outer wall, and an air passage is formed in a space between the inner wall and the outer wall; the method comprises the following steps:
before aeration, the perforated aeration pipe is filled with water;
in the initial stage of aeration, gas enters an aeration pipe through an air inlet at the end part of the aeration pipe and gathers at the top part of the aeration pipe; as the gas continuously enters the aeration pipe, the gas at the top of the aeration pipe is more and more, the lower water body is gradually extruded, passes through the air holes at the bottom of the inner wall and the air passages between the inner wall and the outer wall, and is finally discharged from the aeration hole until all accumulated water in the aeration pipe is discharged;
and (5) normal aeration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711002088.0A CN107673492B (en) | 2017-10-24 | 2017-10-24 | Double-wall type perforated aerator pipe and aeration method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711002088.0A CN107673492B (en) | 2017-10-24 | 2017-10-24 | Double-wall type perforated aerator pipe and aeration method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107673492A CN107673492A (en) | 2018-02-09 |
| CN107673492B true CN107673492B (en) | 2023-10-24 |
Family
ID=61140362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711002088.0A Active CN107673492B (en) | 2017-10-24 | 2017-10-24 | Double-wall type perforated aerator pipe and aeration method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107673492B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113209785A (en) * | 2021-04-02 | 2021-08-06 | 宁波泽瑞环保科技有限公司 | High-efficient sulphur is retrieved and tail gas processing apparatus |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6511054B1 (en) * | 2000-10-05 | 2003-01-28 | Truman Green | Porous air diffuser for treatment of liquids |
| CN101125708A (en) * | 2007-09-12 | 2008-02-20 | 王家骐 | Inclined micro-pore aeration flexible pipe |
| JP2008264711A (en) * | 2007-04-23 | 2008-11-06 | Japan Water Agency | Submerged combined aerator |
| CN201726754U (en) * | 2009-07-20 | 2011-02-02 | 李江 | Micromolecular aerator pipe |
| CN201842704U (en) * | 2010-11-01 | 2011-05-25 | 天津市绿源净化设备有限公司 | Bundling tube type micropore aerator |
| CN203128307U (en) * | 2013-01-15 | 2013-08-14 | 成都吉露科技有限公司 | Aerator pipe capable of aerating sufficiently and uniformly |
| CN203159314U (en) * | 2013-04-03 | 2013-08-28 | 长春黄金研究院 | Anti-blocking single-hole membrane aerator |
| CN204981309U (en) * | 2015-05-06 | 2016-01-20 | 北京动力康环保科技有限公司 | Prevent perforation aeration equipment of long -pending mud of pipeline |
-
2017
- 2017-10-24 CN CN201711002088.0A patent/CN107673492B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6511054B1 (en) * | 2000-10-05 | 2003-01-28 | Truman Green | Porous air diffuser for treatment of liquids |
| JP2008264711A (en) * | 2007-04-23 | 2008-11-06 | Japan Water Agency | Submerged combined aerator |
| CN101125708A (en) * | 2007-09-12 | 2008-02-20 | 王家骐 | Inclined micro-pore aeration flexible pipe |
| CN201726754U (en) * | 2009-07-20 | 2011-02-02 | 李江 | Micromolecular aerator pipe |
| CN201842704U (en) * | 2010-11-01 | 2011-05-25 | 天津市绿源净化设备有限公司 | Bundling tube type micropore aerator |
| CN203128307U (en) * | 2013-01-15 | 2013-08-14 | 成都吉露科技有限公司 | Aerator pipe capable of aerating sufficiently and uniformly |
| CN203159314U (en) * | 2013-04-03 | 2013-08-28 | 长春黄金研究院 | Anti-blocking single-hole membrane aerator |
| CN204981309U (en) * | 2015-05-06 | 2016-01-20 | 北京动力康环保科技有限公司 | Prevent perforation aeration equipment of long -pending mud of pipeline |
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| Publication number | Publication date |
|---|---|
| CN107673492A (en) | 2018-02-09 |
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