CN210457628U - A structure for improving oxygenation efficiency of air-supplied jet aerator - Google Patents
A structure for improving oxygenation efficiency of air-supplied jet aerator Download PDFInfo
- Publication number
- CN210457628U CN210457628U CN201920685455.XU CN201920685455U CN210457628U CN 210457628 U CN210457628 U CN 210457628U CN 201920685455 U CN201920685455 U CN 201920685455U CN 210457628 U CN210457628 U CN 210457628U
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- air
- mixing unit
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- 238000005276 aerator Methods 0.000 title claims abstract description 21
- 238000006213 oxygenation reaction Methods 0.000 title claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 38
- 238000005273 aeration Methods 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 9
- 239000001301 oxygen Substances 0.000 abstract description 9
- 229910052760 oxygen Inorganic materials 0.000 abstract description 9
- 239000010865 sewage Substances 0.000 abstract description 9
- 239000010802 sludge Substances 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001706 oxygenating effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000008247 solid mixture Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
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Classifications
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- 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
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
一种提高供气式射流曝气装置充氧效率的结构，包括混合室，所述的混合室内部设置有球形气液混合单元，球形混合单元与进气管相连并设置于一级喷嘴前端，进气管位于球形混合单元上方，在球形混合单元背离一级喷嘴处一侧开设孔洞或设置出气管，位于出气管前端的混合室处设置有二级喷嘴，一级喷嘴设置在循环水管上。本实用新型通过改进曝气器中的结构，使污水、活性污泥和进气管中通入的空气进行充分接触混合，从而提高曝气器的氧转移效率和动力效率。
A structure for improving the oxygenation efficiency of an air-supplied jet aeration device, comprising a mixing chamber, a spherical gas-liquid mixing unit is arranged inside the mixing chamber, the spherical mixing unit is connected with an air inlet pipe and is arranged at the front end of the first-stage nozzle, and the inlet The air pipe is located above the spherical mixing unit, and a hole or an air outlet is arranged on the side of the spherical mixing unit away from the primary nozzle. The mixing chamber at the front end of the air outlet is provided with a secondary nozzle, and the primary nozzle is arranged on the circulating water pipe. The utility model improves the oxygen transfer efficiency and power efficiency of the aerator by improving the structure in the aerator, so that the sewage, the activated sludge and the air introduced into the air inlet pipe are fully contacted and mixed.
Description
Technical Field
The utility model relates to the technical field of aerobic biological treatment facilities for sewage treatment, in particular to a structure for improving the oxygenation efficiency of an air supply type jet aeration device.
Background
The aerobic biological treatment is a main process for treating domestic sewage and industrial wastewater, and has the advantages of good treatment effect, low operation cost and the like. The aeration equipment mainly supplies oxygen to the water in the aerobic treatment system, so that the oxygen in the air can be effectively dissolved into unsaturated water to maintain the growth and biological oxidation of microorganisms; the activated sludge in the water body is in a suspension state through the stirring and mixing action of the aeration equipment, and organic matters, microorganisms and oxygen in the water can be fully contacted, so that favorable conditions are created for the removal of the organic matters and the growth of the microorganisms; the aeration equipment has driving force on water flow, so that the mud-water mixture circularly flows in the aeration tank, and the uniform distribution of oxygen in the water body is promoted. Meanwhile, the aeration system is used as a core unit of the sewage treatment plant, and the energy consumption accounts for about 45-75% of that of the whole sewage treatment plant. Therefore, the research on the aeration equipment with high oxygenation performance has great significance for saving energy and reducing consumption of the sewage treatment plant.
Currently, aerators in more use can be roughly classified into three categories: air diffusion aerator, mechanical aerator, jet aerator. The jet aerator has both oxygen-charging and flow-pushing functions on sewage, so that the jet aerator is widely applied to aerobic biological treatment processes. The improved air supply type low-pressure jet aerator forcibly blows air into the aerator through the air blower to be mixed with a solid-liquid mixed phase, the oxygen transfer efficiency reaches 30% -35%, the requirement on the lift of a circulating water pump is low, and the power efficiency can reach 4.0-5.2 kg/(kW.h). Compared with a self-suction jet aerator, the aerator has the advantages of difficult blockage, no need of maintenance basically, higher sludge concentration, no secondary pollution caused by flying fog and better advantages than a microporous aerator and mechanical aeration. The mixing effect of the gas and the water is poor due to low oxygenation efficiency.
Disclosure of Invention
In order to further improve the oxygen transfer efficiency and the power efficiency of air supply formula low pressure jet aerator, the utility model discloses a structure in through improving the aerator makes the air that lets in carry out the intensive contact mixture in sewage, activated sludge and the intake pipe to improve the oxygen transfer efficiency and the power efficiency of aerator.
In order to realize the purpose, the utility model discloses a technical scheme is:
the utility model provides an improve air feed formula efflux aeration equipment oxygenating efficiency's structure, includes mixing chamber 5, 5 inside spherical gas-liquid mixing unit 3 that is provided with of mixing chamber, spherical gas-liquid mixing unit 3 links to each other and sets up in 2 front ends of one-level nozzle with intake pipe 4, intake pipe 4 is located 3 tops of spherical gas-liquid mixing unit, deviates from one side of 2 departments of one-level nozzle at spherical gas-liquid mixing unit 3 and sets up hole 7 or set up outlet duct 8, 5 departments of mixing chamber that are located 8 front ends of outlet duct are provided with second grade nozzle 6, one-level nozzle 2 set up on circulating water pipe 1.
The sectional area of the spherical gas-liquid mixing unit 3 accounts for 30-50% of that of the mixing chamber 5.
The spherical gas-liquid mixing unit 3 is arranged at the position 5-10cm away from the front end of the primary nozzle 2, and the center point in the spherical gas-liquid mixing unit 3 and the center of the primary nozzle 2 are at the same horizontal height.
The maximum projection area of the hole 7 accounts for 20-50% of the maximum sectional area of the spherical gas-liquid mixing unit 3, the length of the gas outlet pipe 8 is 1-4cm, and the area of the gas outlet pipe 8 accounts for 20-50% of the maximum sectional area of the spherical gas-liquid mixing unit 3.
The utility model has the advantages that:
compare with air feed formula low pressure jet aerator in the actual engineering of being applied to now, the utility model discloses can disperse the mixture better with the gas-liquid solid mixture phase of sewage, activated sludge and air, increase the turbulence intensity in the mixing chamber simultaneously, break up the air into small bubble, increase the gas-liquid area of contact and dissolve in the gas-liquid mixture phase more rapidly to improve the oxygen transfer efficiency and the power efficiency of aerator, reach energy saving and consumption reduction's effect.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 and 2: set up spherical gas-liquid mixing unit 3 in air feed formula efflux aeration equipment mixing chamber, spherical mixing unit 2 links to each other with intake pipe 4 and sets up in the anterior segment suitable position department in one-level nozzle 2 exit, and the one side of keeping away from nozzle department is seted up hole 7 or is set up outlet duct 8, and gas flows out in hole 7 or outlet duct 8. The liquid flowing out from the primary nozzle 2 is directly sprayed onto the spherical gas-liquid mixing unit 3, the liquid wraps the spherical mixing unit and flows to the mixing chamber 5, violent turbulence is formed at the front end of the opening surface of the spherical gas-liquid mixing unit 3, and gas and liquid are fully mixed, so that the oxygenation efficiency of the device is improved.
The tail end of an air inlet pipe 4 of the air supply type jet aerator is provided with a hollow spherical gas-liquid mixing unit 3, and the sectional area of the spherical gas-liquid mixing unit 3 accounts for 30-50% of the sectional area of a mixing chamber 5. The spherical gas-liquid mixing unit 3 is placed at the position of 5-10cm in the front section of the first-stage nozzle 2, and the center point in the spherical gas-liquid mixing unit 3 and the center of the first-stage nozzle 2 are at the same horizontal height. The side opposite to the first-stage nozzle 2 is provided with a hole 7 or an air outlet pipe 8, the maximum projection area of the hole 7 accounts for 20-50% of the maximum sectional area of the spherical gas-liquid mixing unit 3, the length of the air outlet pipe 8 is 1-4cm, and the area of the air outlet pipe 8 accounts for 20-50% of the maximum sectional area of the spherical gas-liquid mixing unit 3. The liquid flowing out from the primary nozzle 2 is directly sprayed onto the spherical gas-liquid mixing unit 3, the liquid wraps the spherical mixing unit and flows to the mixing chamber 5, violent turbulence is formed at the front end of the opening surface of the spherical gas-liquid mixing unit 3, and gas and liquid are fully mixed, so that the oxygenation efficiency of the device is improved.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920685455.XU CN210457628U (en) | 2019-05-14 | 2019-05-14 | A structure for improving oxygenation efficiency of air-supplied jet aerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920685455.XU CN210457628U (en) | 2019-05-14 | 2019-05-14 | A structure for improving oxygenation efficiency of air-supplied jet aerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210457628U true CN210457628U (en) | 2020-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920685455.XU Active CN210457628U (en) | 2019-05-14 | 2019-05-14 | A structure for improving oxygenation efficiency of air-supplied jet aerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210457628U (en) |
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2019
- 2019-05-14 CN CN201920685455.XU patent/CN210457628U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200629 Address after: No. a0705, 7th floor, block B, Kairui, northwest corner of Fengcheng 12th road and Mingguang Road, Xi'an Economic Development Zone, Shaanxi Province 710016 Patentee after: XI AN LONGHUA ENVIRONMENTAL PROT TECHNOLOGY Co.,Ltd. Address before: 710021 Shaanxi province Xi'an Weiyang university campus of Shaanxi University of Science and Technology Patentee before: SHAANXI University OF SCIENCE & TECHNOLOGY |
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| TR01 | Transfer of patent right |