CN1230523A - Vane wheel type aerating method and equipment by convective aeration and pumping atomization - Google Patents

Vane wheel type aerating method and equipment by convective aeration and pumping atomization Download PDF

Info

Publication number
CN1230523A
CN1230523A CN98106761A CN98106761A CN1230523A CN 1230523 A CN1230523 A CN 1230523A CN 98106761 A CN98106761 A CN 98106761A CN 98106761 A CN98106761 A CN 98106761A CN 1230523 A CN1230523 A CN 1230523A
Authority
CN
China
Prior art keywords
water
whole
impeller
gone
aeration
Prior art date
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.)
Pending
Application number
CN98106761A
Other languages
Chinese (zh)
Inventor
王福成
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN98106761A priority Critical patent/CN1230523A/en
Publication of CN1230523A publication Critical patent/CN1230523A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • 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

Abstract

The method and equipment of the present invention is used for aquatic farming. In the equipment, one motor drives water spinning vane wheel, atomizer, underwater aeration vane wheel and water pumping box synchronously to aerate inside water, pump water and clear away silt, simultane ously. The present invention has the features of high driving efficiency, large effective load area, multiple application, low cost and low consumption.

Description

Vane type convection current aeration pumping atomization oxygenation method and device
The present invention relates to a kind of vane type convection current aeration pumping atomization oxygenation method and device that is used for culture fishery technical field and sewage and waste water processing.
At present in the oxygen-increasing device that uses, a transmission paddle formula oxygenating machine, application number 94243687, the dynamic efficiency height, but current consumption is big, load area is little, all water is got rid of to aerial formation hydraulic jump and spray by paddle, so it is big to be equipped with power of motor, the most successful place is to have cancelled reduction box can also reach high dynamic efficiency, multi-usage is the blowing aeration machine under water, application number 88210772, cost is low, the dynamic efficiency height, current consumption is low, but load area is little, and the most successful place is that the axle of motor is made tubular shaft, and inner chamber is as the passage of air admission water body, utilize the suction of the negative-pressure vacuum of parts back side generation when rotated in the water, air is spilt in the water through the tubular shaft bore passages, and many oxygenating machines have all used this principle of negative pressure inlet under water, but their common drawback is to utilize negative pressure inlet principle under water merely, there is not to form on the aerial inlet mouth high positive pressure air district, strengthen the air capacity that spills in the water, in water, press air when the airborne impeller of the oxygenating machine that has is just changeing, be used for water lift during counter-rotating, can't in air, form the high-pressure air district, a large amount of air are pressed in the water.Oxygen making type convection current bilobed wheel aerator, application number 972175970, the most successful place is the use of circulation stationary installation, can effectively utilize sun power, can be formed with the energy cycle and the material cycle that are beneficial to aquaculture in water.
The purpose of this invention is to provide a kind of vane type convection current aeration pumping atomization oxygenation method and device.The dynamic efficiency height, the workload area is big, cost is low, manufacturing process is simple, have oxygenation, remove mud, the emulsification bubble function of drawing water, atomize, can satisfy different depth of water aquaculture needs, the present invention also is provided for the water dumping impeller unit of vane type convection current aeration pumping atomization oxygen-increasing device, aeration impeller device under water, atomisation unit.
For solving above-mentioned task, the solution that the present invention adopts is: supporting plate (3) is gone up whole or the motor that has been connected (1), one or more link spans (2) two ends and supporting plate (3) case (16) that draws water is whole or be connected, link span (2) is gone up whole or the one or more supports (24) that are connected, support (24) is gone up whole or the one or more floating drums (25) that are connected, whole or the water-in that has been connected (26) of the end that link span (2) is connected with the case that draws water (16), water-in (26) and link span (2) are gone up whole or the one or more water channels (19) that have been connected, the case (16) that draws water is gone up whole or water inlet pipe that has been connected (17) and rising pipe (13), whole or the connector link that has been connected (15) on the rotation axis of the rotation axis of motor (1) and case (16) of drawing water, whole or the rotation axis that has been connected (27) between two connector links (15), rotation axis (27) is gone up whole or is connected or is connected with water dumping impeller unit (22) and aeration impeller device (23) and atomisation unit (29) under water by inner fixed stand (14), and water dumping impeller unit (22) and atomisation unit (29) can integral body or be connected or be connected under water on the aeration impeller device (23) by external fixing rack (27).
Water dumping impeller unit (22) solution is: contact an end whole or be connected one or more suction dishes (9) or a plurality of suction impeller (32) on water-stop sheet (10) and the one side that water contacts or between water-stop sheet (10) and the water eliminator (34) with water, paddle formula or flat impeller (11) are arranged in the suction dish (9), water-stop sheet (10) is gone up whole or has been connected grade water plate (34) or impeller (8) under water, water-stop sheet (10) or water eliminator (34) are gone up whole or the one or more water dumping plates (7) that have been connected, water-stop sheet (10) go up or water-stop sheet (10) and water eliminator (34) between one or more water guide mouths (33) that are communicated with the impeller (32) that absorbs water are arranged, water dumping plate (7) has one or more water dumping plates (7) on water guide mouth (33) both sides or one or more water guide mouth (33).
The solution of aeration impeller device (23) is under water: inner fixed stand (14) whole with rotation axis (27) or that be connected is gone up whole or the one or more tubular shafts (4) that have been connected, the absorbing impeller (5) that tubular shaft (4) upper end is whole or one or more inside that are connected are communicated with tubular shaft (4) inner chamber, the airway (12) that the lower end of tubular shaft (4) or the internal diameter that is connected with tubular shaft (4) are communicated with tubular shaft (4) inner chamber is gone up whole or the one or more impellers under water (8) that have been connected, and tubular shaft (4) or airway (12) are gone up and be connected an end with impeller (8) under water one or more gas ports (20) are arranged.
The solution of atomisation unit (29) is: interior ring (30) is gone up whole or the one or more net sheets (13) that have been connected with outer shroud (31), all or part of net sheet (13) is gone up whole or the impeller (8) under water that has been connected, can be one or more net sheets (13) on impeller under water (8) airway (12) tubular shaft (4) on the whole or aeration impeller device (23) under water of being connected.
Owing on above-mentioned oxygenating machine, adopted a transmission, motor (1) drive simultaneously water dumping impeller unit (22) under water aeration impeller device (23) atomisation unit (29) case (16) that draws water work simultaneously, improved utilization rate of electrical, the water inlet pipe (17) on the case (16) of drawing water reaches and can be used for removing mud at the bottom of the pond and draw water, suction impeller (32) can offer a large amount of water water dumping plate (7) with paddle formula or flat impeller (11), form a large amount of sprays, make water dumping impeller unit (22) that high dynamic efficiency be arranged, the inner high zone of positive pressure of air of absorbing impeller (5) is communicated with the high negative pressure vacuum zone at impeller (8) back side under water, make a large amount of air enter water body from tubular shaft (4) airway (12) lower ending opening or gas port (20), make a large amount of oxygen from being dissolved in water body the bubble under water, net sheet (13) on the atomisation unit (29) is made up of a lot of different shape metals or plastic strip, increase the number of times that bubble is crashed to pieces during rotation, make bubble be crashed to pieces into tiny micro-bubble, reach the effect of emulsification and atomizing, prolonging gas ducks in drink the residence time, improve the utilization ratio of oxygen in the bubble, making under water, aeration impeller device (23) has high dynamic efficiency, water dumping impeller unit (22) aeration impeller device (23) atomisation unit (29) case (16) water channel (19) that draws water under water can be selected supporting according to user's needs, form the series product of difference in functionality combination, applied widely, the dynamic efficiency height, cost is low, and the workload area is big.
Embodiment is described in further details the present invention below in conjunction with accompanying drawing.
Fig. 1 is a vane type convection current aeration pumping atomization oxygen-increasing device overall schematic.
Fig. 2 is a kind of mutual alignment structural representation of the device of aeration impeller under water (23) water dumping impeller unit (22) atomisation unit (29) of two tubular shafts (4).
Fig. 3 is the device of aeration impeller under water (23) among Fig. 2.
Fig. 4 is the water dumping impeller unit (22) among Fig. 2.
Fig. 5 is the atomisation unit (29) among Fig. 2.
Fig. 6 is a kind of device of aeration impeller under water (23) and atomisation unit shown in Figure 5 (29) unitized construction synoptic diagram.
As shown in Figure 1: circular square or other shape supporting plate (3) is gone up whole or the motor that has been connected (1), draw water three or more connecting strip of case (16) of three or more angle bar pipe or other shape link span (2) two ends and supporting plate (3) is whole or be connected, link span (2) is gone up whole or be connected three angle bar pipes or other shape support (24), three homogeneous radiation shape supports (24) are gone up whole or three floating drums (25) that have been connected, the end that link span (2) is connected with the case that draws water (16) whole or be connected circular port square orifice or other shape water-in (26), water-in (26) and link span (2) are gone up whole or be connected three or more long trough or elongate tubular water channel (19), water channel can install the buoyancy thing additional on (19), can install net defence additional on water-in (26) and the water channel (19), the case (16) that draws water is gone up whole or water inlet pipe that has been connected (17) and rising pipe (18), whole or the connector link that has been connected (15) on the rotation axis of the rotation axis of motor (1) and case (16) of drawing water, two connector links (15) whole or be connected two cylindrical square column types or other shape inner fixed stand (14), inner fixed stand (14) is gone up whole or the aeration impeller device (23) under water that has been connected.
Inner fixed stand (14) is connected with tubular square tube shape or other shape tubular shaft (4) on the aeration impeller device (23) under water; semicircle oval or other shape absorbing impeller (5) that tubular shaft (4) upper end is whole or two or more inside that are connected are communicated with tubular shaft (4) inner chamber; absorbing impeller (5) below tubular shaft (4) is gone up whole or has been connected circular square or other shape protecting sheet (6); protecting sheet (6) below tubular shaft (4) is gone up whole or the water dumping impeller unit (22) that has been connected; the tubular shaft (4) of water dumping impeller unit (22) below is gone up two or more straight tubes or other shape airway (12) whole or that be connected impeller (8) under water or internal diameter are communicated with tubular shaft (4) inner chamber; each or a plurality of airway (12) are gone up whole or have been connected one or more tetragons or other shape impeller (8) under water; being connected on the end airway (12) with impeller (8) under water has one or more gas ports (20), and impeller (8) is gone up whole or be connected two or more net sheets (13) or atomisation unit (29) under water.
Water eliminator (34) on the water dumping impeller unit (22) and tubular shaft (4) outer wall are whole or be connected and be close to, water eliminator (34) is gone up whole or be connected two or more triangle tetragons or other shape water dumping plate (7), the paddle formula of suction dish (9) or flat impeller (11) and water eliminator (34) are whole or be connected, on paddle formula or the flat impeller (11) afterburning post can be installed, one end is connected with suction dish (9), one end is connected with water eliminator (34), the upper end open of suction dish (9) and annular or other shape water-stop sheet (10) are whole or be connected, whole or the two or more water dumping plates (7) that have been connected of water-stop sheet (10) upper surface, water-stop sheet (10) lower surface or edge are whole or be connected on two or a plurality of impeller under water (8).
As shown in Figure 2: connector link on two (15) whole or be connected cylindrical square column type or other shape rotation axis (27), inner fixed stand (14) two ends and rotation axis (27) and tubular shaft (4) are whole or be connected, aeration impeller device (23) is whole or be connected on rotation axis (27) by inner fixed stand (14) under water, external fixing rack (28) two ends and water eliminator (34) and tubular shaft (4) are whole or be connected, water dumping impeller unit (22) is by external fixing rack (28) on the whole or aeration impeller device (23) that is connected under water, water dumping impeller unit (22) can be whole or be connected on rotation axis (27), be installed on inner fixed stand (14) position, in ring (30) and net sheet (13) whole or be connected with impeller (8) under water, make on the whole or aeration impeller device (23) that is connected under water of atomisation unit (29).
As shown in Figure 3: aeration impeller device (23) structure is as follows under water, inner fixed stand (14) and two or more tubular square tube shapes or other shape tubular shaft (4) are whole or be connected, whole or inner one or more tetragons or other shape absorbing impeller (5) that is communicated with tubular shaft (4) inner chamber that be connected in tubular shaft (4) upper end, whole or one or more tetragons and other shape impeller (8) under water that has been connected in the lower end of tubular shaft (4), there is three or more circular or other shape gas port (20) lower end of tubular shaft (4).
As shown in Figure 4: water dumping impeller unit (22) structure is as follows, annular or other shape water eliminator (34) and annular or other shape water-stop sheet (10) directly is connected or by the connection of tetragon or other shape water dumping plate (7), the oval Polygons of two or more semicircles or other shape suction impeller (32) or annular suction dish (9) are arranged between water eliminator (34) and the water-stop sheet (10) or on the water-stop sheet (10), whole or two or more tetragons or other shape impeller (8) under water that has been connected of the one side at water-stop sheet (10) and the water place of connecing, suction impeller (32) water guide mouth (33) inner and on the water-stop sheet (10) is communicated with, and water eliminator (34) is gone up whole or the external fixing rack that has been connected (27).
As shown in Figure 5: atomisation unit (29) structure is as follows, ring (30) is gone up whole or be connected six or a plurality of tetragon or other shape net sheet (13) with two or more circles or other shape outer shroud (31) in two or more circles or other shape, and two or more net sheets (13) are wherein gone up whole or have been connected one or more tetragons or other shape impeller (8) under water.
As shown in Figure 6: two or more impellers under water (8) of aeration impeller device (23) and tubular shaft (4) are whole or be connected under water, there are one or more gas ports (20) and lower ending opening (21) in tubular shaft (4) lower end, impeller (8) is gone up jagged under water, breach on two or more impellers under water (8) can be formed tetragon or other shape negative pressure mouth (35), whole or be connected circle and annular or other shape rotor plate (36) on impeller (8) lower end or the breach under water, inner fixed stand (14) is can be with rotor plate (36) whole or be connected, and the net sheet (13) of atomisation unit (29) is whole or be connected with impeller (8) under water.
Install and finish; oxygenating machine can be fixed on any water surface sites such as pool side; be fixed on pool side and can cancel floating drum; adjust breed water cycle current route in the pond with water channel (19) position; make circulating water flow carry out the full water surface of lid; culture the water liquid level and can not surpass protecting sheet (6) or water-stop sheet (10); actuating motor (1); aeration impeller device (23) water dumping impeller unit (22) atomisation unit (29) case (16) that draws water is moved simultaneously; the inner high positive pressure air district that produces of absorbing impeller (5); the back side of impeller (8) produces the high negative pressure vacuum zone under water; the oar blade type or the flat impeller (11) that can produce high malleation pool or suction dish (9) in the suction impeller (32) are mentioned water; the case that draws water is a water pump; the air of high zone of positive pressure is through the inner chamber of tubular shaft (4) or enter high negative pressure vacuum zone, impeller (8) back side under water through airway (12) from gas port (20) or tubular shaft (4) airway (12) lower ending opening (21) again; in water, form bubble; through atomisation unit (29) to hit into small tiny bubble; gas residence time of ducking in drink is prolonged; reach the aeration oxygen replenishing purpose of spray and moisture film under water; the water of suction impeller (32) inner high zone of positive pressure enters between the water dumping plate (7) or suction dish (9) is directly mentioned water between the water dumping plate through water guide mouth (33); thrown away in water surface formation hydraulic jump and spray oxygenation by the water dumping plate; the case (16) that draws water is removed mud at the bottom of utilizing water inlet pipe (17) to reach the pond; can also work as water pump draws water; water dumping impeller unit (22) under water aeration impeller device (23) atomisation unit (29) when operation centrifugal action that the thrust of water or suction and water are produced because of rotation the result; push the water before the oxygenation or after the oxygenation or suck in the water channel; make not current direction oxygenating machine through oxygenation; current after the oxygenation are from oxygenating machine; successively to the oxygenation of whole breed water; strengthen the flow state of air film and pond face moisture film; quicken oxygen and dissolve in water body from the water surface; help that microorganism makes full use of sun power in the water, in water, be formed with the material cycle and the energy cycle that are beneficial to breed.
Can fishing net be installed in water channel (19), utilize fish to seek the abundant water source characteristics that flow of dissolved oxygen, the trapping fish are used as the fish trap.
Water was constantly imported in the water channel (19) after oxygenating machine enriched water and oxygenation to water surface top layer dissolved oxygen, and the water source type intensive culture that can flow in water channel uses as aquaculture device.
Can be with the airway of pneumatic pump directly forming bubble in air or purity oxygen and the ozone gas input oxygenating machine bottom water, bubble sucks in the atomisation unit with water, do not have that purity oxygen soluble in water and ozone gas are recyclable to be reused, can be sealed in oxygenating machine in the closed unit, charge into purity oxygen and ozone gas, do not have water-soluble gas to be raised to the water surface and be retracted, reuse, use purity oxygen and ozone gas purpose to reach.

Claims (4)

1, the present invention relates to a kind of vane type convection current aeration pumping atomization oxygenation method and device that is used for culture fishery technical field and sewage disposal, by motor (1), support (24), floating drum (25), water channel (19) is formed, it is characterized in that: supporting plate (3) is gone up whole or the motor that has been connected (1), one or more link spans (2) two ends and supporting plate (3) case (16) that draws water is whole or be connected, link span (2) is gone up whole or the one or more supports (24) that are connected, support (24) is gone up whole or the one or more floating drums (25) that are connected, whole or the water-in that has been connected (26) of the end that link span (2) is connected with the case that draws water (16), water-in (26) and link span (2) are gone up whole or the one or more water channels (19) that have been connected, the case (16) that draws water is gone up whole or water inlet pipe that has been connected (17) and rising pipe (18), whole or the connector link that has been connected (15) on the rotation axis of the rotation axis of motor (1) and case (16) of drawing water, whole or the rotation axis that has been connected (27) between two connector links (15), rotation axis (27) is gone up whole or is connected or is connected with water dumping impeller unit (22) and aeration impeller device (23) and atomisation unit (29) under water by inner fixed stand (14), and water dumping impeller unit (22) and atomisation unit (29) can integral body or be connected or be connected under water on the aeration impeller device (23) by external fixing rack (28).
2, the invention still further relates to a kind of water dumping impeller unit that is used for the described vane type convection current of claim 1 aeration pumping atomization oxygenation method and device, form by oar blade type impeller (11), it is characterized in that: water-stop sheet (10) downwards with one side that water contact on or downward end integral body or be connected one or more suction dishes (9) or a plurality of suction impeller (32) of contacting with water between water-stop sheet (10) and the water eliminator (34), oar blade type or flat impeller (11) are arranged in the suction dish (9), water-stop sheet (10) is gone up whole or the water eliminator that has been connected (34) and one or more impeller under water (8), water-stop sheet (10) or water eliminator (34) are gone up whole or the one or more water dumping plates (7) that have been connected, water-stop sheet (10) go up or water-stop sheet (10) and water eliminator (34) between one or more water guide mouths (33) that are communicated with the impeller (32) that absorbs water are arranged, water dumping plate (7) has one or more water dumping plates (7) on water guide mouth (33) both sides or one or more water guide mouth (33).
3, the invention still further relates to a kind of device of aeration impeller under water that is used for the described vane type convection current of claim 1 aeration pumping atomization oxygenation method and device, form by impeller (8) under water, it is characterized in that: inner fixed stand (14) whole with rotation axis (27) or that be connected is gone up whole or the one or more tubular shafts (4) that have been connected, the absorbing impeller (5) that tubular shaft (4) upper end is whole or one or more inside that are connected are communicated with tubular shaft (4) inner chamber, the airway (12) that tubular shaft (4) lower end or the internal diameter that is connected with tubular shaft (4) are communicated with tubular shaft (4) inner chamber is gone up whole or the one or more impellers under water (8) that have been connected, and tubular shaft (4) lower end or airway (12) are gone up and be connected an end with impeller (8) under water one or more gas ports (20) are arranged.
4, the invention still further relates to a kind of atomisation unit that is used for the described vane type convection current of claim 1 aeration pumping atomization oxygenation method and device, form by impeller (8) under water, it is characterized in that: interior ring (30) is gone up whole or the one or more net sheets (13) that have been connected with outer shroud (31), all or part of net sheet (13) or outer shroud (31) are gone up whole or the impeller (8) under water that has been connected, can be one or more net sheets (13) on impeller under water (8) airway (12) tubular shaft (4) on the whole or aeration impeller device (23) under water of being connected.
CN98106761A 1998-03-26 1998-03-26 Vane wheel type aerating method and equipment by convective aeration and pumping atomization Pending CN1230523A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN98106761A CN1230523A (en) 1998-03-26 1998-03-26 Vane wheel type aerating method and equipment by convective aeration and pumping atomization

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN98106761A CN1230523A (en) 1998-03-26 1998-03-26 Vane wheel type aerating method and equipment by convective aeration and pumping atomization

Publications (1)

Publication Number Publication Date
CN1230523A true CN1230523A (en) 1999-10-06

Family

ID=5219093

Family Applications (1)

Application Number Title Priority Date Filing Date
CN98106761A Pending CN1230523A (en) 1998-03-26 1998-03-26 Vane wheel type aerating method and equipment by convective aeration and pumping atomization

Country Status (1)

Country Link
CN (1) CN1230523A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108797532A (en) * 2018-05-24 2018-11-13 天津大学 A kind of Lapping quantity preventing atomization method
CN112174292A (en) * 2020-10-21 2021-01-05 安徽中环环保科技股份有限公司 Advanced treatment device and method for printing and dyeing wastewater

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108797532A (en) * 2018-05-24 2018-11-13 天津大学 A kind of Lapping quantity preventing atomization method
CN112174292A (en) * 2020-10-21 2021-01-05 安徽中环环保科技股份有限公司 Advanced treatment device and method for printing and dyeing wastewater

Similar Documents

Publication Publication Date Title
CA2284403C (en) Device for agitating a liquid in a reactor and for injecting a gas into this liquid
CN106745867A (en) A kind of aerator
CN106430661A (en) Flow-generating type aerator and aerating system
CN206858274U (en) Pin-connected panel Small Town Wastewater processing equipment
CN2347965Y (en) Turbine convection aeration water-pumping atomizing aerator
CN1309664C (en) Reinforced biological contacting oxidation water correction apparatus
CN1230523A (en) Vane wheel type aerating method and equipment by convective aeration and pumping atomization
CN215365341U (en) Sewage treatment device
CN113575501B (en) Water pushing and oxygenation device and culture tank thereof
CN116081881A (en) Cultivation sewage circulation treatment equipment and treatment method thereof
CN201722206U (en) Novel deep-level split-type external circulating biological film reactor
CN203112601U (en) Submersed ozonic oxygen-increasing machine
CN215327548U (en) Sewage treatment plant in pig farm
CN1887750A (en) Aerator
CN211712731U (en) Mobile biological membrane sewage treatment device
CN109336248B (en) Aeration system of biochemical sewage treatment tank
CN113683269A (en) Energy-saving and environment-friendly oxygen transfer biological membrane and sewage treatment system
CN207891135U (en) A kind of ecological running water equipment in situ
CN1442047A (en) Rotating pump up aeration machine
CN2402672Y (en) Electrically driven impeller aerator
CN111689590B (en) Novel aquaculture sewage treatment aeration tank
CN2491446Y (en) Self-sucking underwater diversion aerating and stirring machine
CN206512001U (en) A kind of aerator
CN215102710U (en) Sewage treatment device
CN215530923U (en) Ecological pond for enhancing water body circulation flow oxygenation

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C01 Deemed withdrawal of patent application (patent law 1993)
WD01 Invention patent application deemed withdrawn after publication