CN111302509A - Water cutting aerator for large aeration tank - Google Patents
Water cutting aerator for large aeration tank Download PDFInfo
- Publication number
- CN111302509A CN111302509A CN202010255262.8A CN202010255262A CN111302509A CN 111302509 A CN111302509 A CN 111302509A CN 202010255262 A CN202010255262 A CN 202010255262A CN 111302509 A CN111302509 A CN 111302509A
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- China
- Prior art keywords
- water
- shell
- aeration
- air
- aerator
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 87
- 238000005273 aeration Methods 0.000 title claims abstract description 62
- 238000005276 aerator Methods 0.000 title claims abstract description 48
- 239000010865 sewage Substances 0.000 abstract description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 4
- 239000001301 oxygen Substances 0.000 abstract description 4
- 229910052760 oxygen Inorganic materials 0.000 abstract description 4
- 238000003756 stirring Methods 0.000 abstract description 3
- 230000008021 deposition Effects 0.000 abstract description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 13
- 239000010935 stainless steel Substances 0.000 description 13
- 239000007789 gas Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000006213 oxygenation reaction Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
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
-
- 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)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The invention discloses a water cutting aerator for a large aeration tank, which comprises a shell and a plurality of jet aeration heads uniformly arranged on the surface of the shell, wherein the top end of the shell is provided with an air inlet, the bottom end of the shell is provided with a water inlet, the central area in the shell is provided with an air cavity, the periphery of the air cavity is provided with a water cavity, the air inlet is communicated with the air cavity, the water inlet is communicated with the water cavity, and the surface of the air cavity is provided with an air outlet corresponding to the jet aeration heads on the surface of the shell. The aerator disclosed by the invention can realize three-dimensional aeration and accurate air control, and the water flow impact force of the water cutting jet aerator is wide in aeration range coverage, large in stirring force, uniform in aeration, free of dead angles in the pool and free of deposition at the bottom of the pool, so that the aeration in a sewage pool is more sufficient, the dissolved oxygen efficiency is improved compared with that of the traditional jet aerator, and the sewage treatment efficiency is high. Easy to realize engineering application and has good market promotion prospect.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a water cutting aerator for a large aeration tank.
Background
In the technical field of sewage treatment, the aerator is widely used. The aerator is a necessary device for water supply and drainage aeration and oxygenation, and can be divided into a surface aerator and an underwater aerator according to a use method, wherein the underwater aerator mainly comprises a micropore aerator and a jet aerator. At present, the micropore aerators at home and abroad adopt a micropore diffusion method technology, fine bubbles can be generated when air is discharged into a water body through micropores, but in high-concentration, high-suspended matter, high-hardness or easily-scaling sewage, the micropore aerators are easy to block, so that frequent maintenance and equipment replacement are caused, the operation cost of sewage treatment is increased, and even the normal operation of a sewage treatment plant is influenced. The existing jet aerator has insufficient air-water mixing, particularly, the air flow cannot be accurately controlled, the oxygenation efficiency is low, the oxygen transfer efficiency is low, the overall aeration effect is not ideal, and the requirements of high-standard aeration treatment cannot be met. For example, the chinese patent application No. 201610755207.9 discloses an improved jet aerator, which comprises a housing and jet aeration heads uniformly arranged on the surface of the housing, wherein the top end and the bottom end of the housing are respectively provided with an air inlet and a water inlet, a flow control block is arranged at the water outlet end in the jet aeration head, a water collection outlet hole is arranged on the flow control block, a stainless steel mesh is arranged at the water outlet end of the water collection outlet hole, and the stainless steel mesh covers the water outlet end of the water collection outlet hole.
The problems of exposure of the jet aerator include that the water inlet has no diversion facilities, so that the water inlet impact is too large, the equipment vibrates violently during the operation process, and the failure rate is high. The gas that the air inlet got into the casing can't with the accurate dispersion after the water mixes in the efflux aeration head of range at the casing surface, be provided with the stainless steel net in the play water end that gathers the stream apopore moreover, the stainless steel net cover is outside gathering the play water end that gathers the stream apopore, have impurity to get into the casing when the aquatic, long-time operation can lead to the whole shutoff of play water end stainless steel net, the stainless steel net can be washed out by the air water mixture body owing to stopping up seriously even, break away from the play water end that gathers the stream apopore, thereby lead to the aeration inhomogeneous. Therefore, it is desirable to provide a water cutting aerator that is particularly suitable for use in large aeration tanks.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a water cutting aerator for a large-sized aeration tank.
The invention adopts the following technical scheme: the utility model provides a water cutting aerator for large-scale aeration tank, includes casing and a plurality of jet aeration head of align to grid at housing face, the top of casing sets up the air inlet, the bottom sets up the water inlet, the inside central zone of casing sets up the air cavity, surrounds the air cavity and sets up the water cavity all around, air inlet intercommunication air cavity, water inlet intercommunication water cavity, air cavity surface set up the gas outlet corresponding with housing face's jet aeration head.
Further, the shell is in a circular barrel shape or an oval shape. Preferably, the section of the joint of the upper part of the shell and the air inlet is circular arc; the joint of the lower part of the shell and the water inlet is in a cone frustum shape.
Furthermore, the jet aeration head is provided with a conical nozzle.
Furthermore, in order to further ensure uniform aeration, an even number of jet aeration heads are symmetrically arranged outside the shell.
Furthermore, the air outlet extends into the jet aeration head nozzle at the opposite position and is away from the two thirds of the water outlet end of the jet aeration head, so that air is cut by the water jet cutter, and the high-pressure air-water mixture is ejected from the nozzle opening. After the gas enters the gas cavity, the gas is uniformly distributed into 8 stainless steel tubes which are arranged, so that the same ventilation volume is ensured, and accurate gas control is realized. Preferably, the diameter of the air outlet is reduced by 25-35% compared with the diameter of the jet flow aeration head nozzle (the sizes of the aerator, the air outlet and the nozzle are determined according to parameters such as process design, tank volume, inlet water concentration, fan type selection and the like).
Further, in order to improve the water cutting effect, the bottom of the air cavity is provided with a circular arc-shaped bottom plate, and the outer wall of the circular arc-shaped bottom plate is welded with a counterclockwise guide plate, so that water flow impact is counterclockwise rotated. The novel design can ensure uniform water distribution, reduce the impact of water power on equipment and prolong the service life of the equipment.
The invention has the beneficial effects that: the water cutting aerator for the large aeration tank provided by the invention can realize three-dimensional aeration and accurate air control, has wide aeration range coverage, large stirring force and uniform aeration through the water flow impact force of the water cutting jet aerator, ensures no dead angle in the tank and no deposition at the bottom of the tank, ensures more sufficient aeration in a sewage tank, improves the dissolved oxygen efficiency compared with the traditional jet aerator, and has high sewage treatment efficiency. Easy to realize engineering application and has good market promotion prospect.
Drawings
Fig. 1 is a front view of a water cutting aerator for a large-sized aeration tank according to an embodiment of the present invention.
Fig. 2 is a top view of a water cutting aerator for a large-sized aeration tank according to an embodiment of the present invention.
Fig. 3 is a partial view of a water cutting aerator for a large-sized aeration tank according to an embodiment of the present invention.
FIGS. 1-3 include: 1 is a shell, 2 is a jet aeration head, 3 is an air inlet, 4 is a water inlet, 5 is an air cavity, 6 is a water cavity, 7 is an air outlet, and 8 is a guide plate.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following embodiments and accompanying drawings.
As shown in fig. 1-2, a water cutting aerator for large-scale aeration tank, including circular tubbiness casing 1 and 8 efflux aeration heads 2 evenly symmetrically arranged on oval casing 1 surface, the top and the bottom of oval casing 1 set up air inlet 3 and water inlet 4 respectively, the inside central region of oval casing 1 sets up air cavity 5, surround air cavity 5 set up water cavity 6 all around, air inlet 3 intercommunication air cavity 5, water inlet 4 intercommunication water cavity 6, 8 stainless steel gas outlets 7 are set up for the same position of 8 efflux aeration heads 2 on casing surface in the air cavity 5 surface.
As shown in figure 3, sewage enters the water cavity 6 from the water inlet 4, air enters the air cavity 5 from the air inlet 3, the bottom structure of the air cavity 5 is a circular arc-shaped stainless steel bottom plate, a clockwise guide plate 8 is welded on the circular arc-shaped stainless steel bottom plate, and the water flow impact guide plate 8 rotates clockwise, so that water distribution is uniform, the impact of water power on equipment is reduced, and the service life of the equipment is prolonged.
As shown in fig. 1-2, the pipe diameter of the stainless steel air outlet 7 is about 15mm smaller than the caliber of the jet aerator 2, 8 stainless steel air outlets 7 extend into the jet aerator 2 at opposite positions, the jet aerator 2 adopts a conical nozzle and is two thirds away from the water outlet end of the jet aerator 2, so that air is cut by a water knife, and a high-pressure air-water mixture is ejected from the nozzle. After the gas enters the gas cavity 5, the gas is uniformly distributed in 8 stainless steel pipes which are arranged, so that the same ventilation volume is ensured, and accurate gas control is realized.
An improved SBR process is adopted in a certain sewage plant, the length of a pool body is 20 meters, the width of the pool body is 15 meters, the effective water depth is 6 meters, 1 water cutting aerator is arranged in the pool, the diameter of the aerator is about 100cm, the height of the aerator is about 80cm, and the improved SBR sewage plant is matched with a 15kw Roots blower and a 5.5kw centrifugal water pump. On the test site, the atmospheric pressure is 101.3kpa, the air temperature is 20 ℃, the relative humidity is 50 percent, and the air density is 1.2kg/m3And the medium in the tank is clear water. The experimental process comprises the following steps: the blower outlet pressure was set at 0.065mpa and the pump pressure at 5 kg. The experimental results are as follows: the system continuously operates for 8 hours, the on-site effect is good, and the aeration is uniform and has no dead angle.
The water cutting aerator for the large aeration tank of the embodiment can realize three-dimensional aeration and accurate air control, and has the advantages of wide aeration range coverage, large stirring force, uniform aeration, no dead angle in the tank and no sedimentation at the bottom of the tank through the water flow impact force of the water cutting jet aerator, more sufficient aeration in a sewage tank, improved dissolved oxygen efficiency compared with the traditional jet aerator and high sewage treatment efficiency.
The above embodiments are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical solution according to the technical idea of the present invention falls within the protection scope of the present invention. The technology not related to the invention can be realized by the prior art.
Claims (8)
1. A water cutting aerator for a large aeration tank is characterized in that: the jet aeration head structure comprises a shell and a plurality of jet aeration heads uniformly arranged on the surface of the shell, wherein an air inlet is formed in the top end of the shell, a water inlet is formed in the bottom end of the shell, an air cavity is formed in the central area inside the shell, a water cavity is formed around the air cavity, the air inlet is communicated with the air cavity, the water inlet is communicated with the water cavity, and an air outlet corresponding to the jet aeration heads on the surface of the shell is formed in the surface of the air cavity.
2. The water cutting aerator for large aeration tanks as claimed in claim 1, wherein: the shell is in a round barrel shape or an oval shape.
3. The water cutting aerator for large aeration tanks according to claim 1 or 2, characterized in that: the section of the joint of the upper part of the shell and the air inlet is arc-shaped; the joint of the lower part of the shell and the water inlet is in a cone frustum shape.
4. The water cutting aerator for large aeration tanks as claimed in claim 1, wherein: the jet aeration head is provided with a conical nozzle.
5. The water cutting aerator for large aeration tanks as claimed in claim 4, wherein: the jet aeration heads are arranged in an even number and are symmetrically arranged outside the shell.
6. The water cutting aerator for large aeration tanks according to claim 1 or 4, characterized in that: the air outlet extends into a nozzle of the jet aeration head and is two thirds away from the water outlet end of the jet aeration head.
7. The water cutting aerator for large aeration tanks as claimed in claim 6, wherein: the diameter of the air outlet is reduced by 30% than that of the jet aeration head.
8. The water cutting aerator for large aeration tanks as claimed in claim 1, wherein: the bottom of the air cavity is provided with an arc-shaped bottom plate, and the outer wall of the arc-shaped bottom plate is welded with an anticlockwise guide plate, so that water flow impact is anticlockwise rotated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010255262.8A CN111302509A (en) | 2020-04-02 | 2020-04-02 | Water cutting aerator for large aeration tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010255262.8A CN111302509A (en) | 2020-04-02 | 2020-04-02 | Water cutting aerator for large aeration tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111302509A true CN111302509A (en) | 2020-06-19 |
Family
ID=71157659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010255262.8A Pending CN111302509A (en) | 2020-04-02 | 2020-04-02 | Water cutting aerator for large aeration tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111302509A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201376915Y (en) * | 2008-07-28 | 2010-01-06 | 李威 | Jet aerating device with air supplied by positive pressure in middle layer |
| CN202470429U (en) * | 2011-12-31 | 2012-10-03 | 武汉海尔热水器有限公司 | Electric water heater with manger at water inlet |
| CN106277292A (en) * | 2016-08-30 | 2017-01-04 | 宜兴市中发水处理环保设备有限公司 | A kind of Novel jet aerator |
| WO2018098971A1 (en) * | 2016-12-02 | 2018-06-07 | 江苏申江环境科技有限公司 | Aeration tank resin-based spraying device for water treatment |
| CN109654320A (en) * | 2018-12-13 | 2019-04-19 | 山东劳动职业技术学院（山东劳动技师学院） | A kind of energy-saving water collector |
| CN209271005U (en) * | 2018-08-30 | 2019-08-20 | 广西博世科环保科技股份有限公司 | A kind of filtering cloth filtering pool of strong impact resistance |
| CN211999075U (en) * | 2020-04-02 | 2020-11-24 | 江苏道科环境科技有限公司 | Water cutting aerator for large aeration tank |
-
2020
- 2020-04-02 CN CN202010255262.8A patent/CN111302509A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201376915Y (en) * | 2008-07-28 | 2010-01-06 | 李威 | Jet aerating device with air supplied by positive pressure in middle layer |
| CN202470429U (en) * | 2011-12-31 | 2012-10-03 | 武汉海尔热水器有限公司 | Electric water heater with manger at water inlet |
| CN106277292A (en) * | 2016-08-30 | 2017-01-04 | 宜兴市中发水处理环保设备有限公司 | A kind of Novel jet aerator |
| WO2018098971A1 (en) * | 2016-12-02 | 2018-06-07 | 江苏申江环境科技有限公司 | Aeration tank resin-based spraying device for water treatment |
| CN209271005U (en) * | 2018-08-30 | 2019-08-20 | 广西博世科环保科技股份有限公司 | A kind of filtering cloth filtering pool of strong impact resistance |
| CN109654320A (en) * | 2018-12-13 | 2019-04-19 | 山东劳动职业技术学院（山东劳动技师学院） | A kind of energy-saving water collector |
| CN211999075U (en) * | 2020-04-02 | 2020-11-24 | 江苏道科环境科技有限公司 | Water cutting aerator for large aeration tank |
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