WO2017072573A1 - Aérateur de surface centrifuge pour étangs et/ou analogues - Google Patents

Aérateur de surface centrifuge pour étangs et/ou analogues Download PDF

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Publication number
WO2017072573A1
WO2017072573A1 PCT/IB2016/001538 IB2016001538W WO2017072573A1 WO 2017072573 A1 WO2017072573 A1 WO 2017072573A1 IB 2016001538 W IB2016001538 W IB 2016001538W WO 2017072573 A1 WO2017072573 A1 WO 2017072573A1
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WO
WIPO (PCT)
Prior art keywords
water
tubes
rotor
pivot
immersed
Prior art date
Application number
PCT/IB2016/001538
Other languages
English (en)
Inventor
Silla Martini
Original Assignee
Silla Martini
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 Silla Martini filed Critical Silla Martini
Publication of WO2017072573A1 publication Critical patent/WO2017072573A1/fr

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/234—Surface aerating
    • B01F23/2342—Surface aerating with stirrers near to the liquid surface, e.g. partially immersed, for spraying the liquid in the gas or for sucking gas into the liquid, e.g. using stirrers rotating around a horizontal axis or using centrifugal force
    • B01F23/23421—Surface aerating with stirrers near to the liquid surface, e.g. partially immersed, for spraying the liquid in the gas or for sucking gas into the liquid, e.g. using stirrers rotating around a horizontal axis or using centrifugal force the stirrers rotating about a vertical axis
    • B01F23/234211—Stirrers thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/50—Movable or transportable mixing devices or plants
    • B01F33/503—Floating mixing devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
    • B01F35/32—Driving arrangements
    • B01F35/323—Driving arrangements for vertical stirrer shafts
    • B01F35/3231—Driving several stirrer shafts, e.g. about the same axis
    • 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
    • C02F3/14—Activated sludge processes using surface aeration
    • C02F3/16—Activated sludge processes using surface aeration the aerator having a vertical axis
    • 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
    • C02F3/205—Moving, e.g. rotary, diffusers; Stationary diffusers with moving, e.g. rotary, distributors
    • 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
    • C02F3/24—Activated sludge processes using free-fall aeration or spraying
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
    • 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
    • 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
    • Y02W10/30—Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy

Definitions

  • the present invention relates to a new system for oxygenating the water of lakes, ponds and the like, and for oxygenating waste water in general as well.
  • the new system utilizes centrifugal force to pump the water from a lower level to a higher level; the pumped water exits in multiple continuous jets as if it exited from a multi-jet rotating fountain.
  • the new invention considers a structure that rotates in shape at right angles to the plane, said structure is composed of a plurality of straight tubes, a minimum of two, all of the same length, arranged symmetrically in a circle around a central pivot that is perpendicular to the plane, all the tubes are inclined and diverge with respect to said pivot, assuming a conical shape, converging downward and diverging upward.
  • the lower ends of said tubes converge inside a watertight cylinder that is immersed in the water, the water enters the immersed ends of the tubes, reaching the outer level of the water.
  • the water jets in exiting, break up, and during transit, before returning onto the water of the lake, they become enriched with oxygen.
  • the drawn water can be saturated with toxic substances, such as N02, N03, H2S, NH4, etc., only oxygen (0 2 ) remains dissolved in the water that returns by gravity to the pond after having a good permanence in air, by virtue of the length of the fragmented jets.
  • the device according to the invention can be coupled to a floating structure or can be fixed to the ground with a central pivot that rises from the bottom of the pond or on a protruding "arm", which is fixed to the quay.
  • Countless types of surface aerators are currently commercially available, the most common are the ones with: submerged propeller or conical impeller with vanes, fixed turbine, turbine with spatulas, brush aerators, microbubble air diffusers (various types), spiral agitators, etc., but they all have something in common, the background art is similar and moreover they are expensive and not always effective: only the ones that use high electric power levels can achieve the goal of properly oxygenating the water.
  • the aim of the present invention is to provide an aeration system for lakes, ponds and the like as well as for wastewater basins, that has low operating costs and is effective in the oxygenation work, the provision costs must be contained in order to also encourage private individuals to use the oxygenators, according to the invention.
  • an object of the present invention is to provide a water aeration system that is quiet.
  • Another object of the present invention is to be able to have multiple aerators that operate with a single motor.
  • a further object of the present invention is to be able to provide it completely by using plastic material and/or the like.
  • a further object of the present invention is to be able to have a surface aerator that does not require filters and can operate even with algae- rich water.
  • Another object of the present invention is to be able to have available a surface aerator that is decorative and is provided with rotating jets that break up at the upper outlet of the tubes.
  • Another object of the present invention is to be able to atomize the water jets that exit from the upper ends of the tubes, simply by increasing the rotation rate and by not resorting to the increase in pressure as occurs instead with pumps; atomizing the water means increasing the water/air contact surface with consequent greater oxygenation.
  • Another object of the present invention is to provide a water aeration device that is self-priming.
  • Figure 1 is a three-dimensional view of the aeration device according to the invention, highlighting the central rotor with two diverging inclined tubes that exit from the cylindrical container, the four floats (four and not three so as to be able to provide a better cross-section in the drawing) which are integral to the structure that supports the aeration device are clearly seen, the cover of the electric motor at the center of the centrifuging rotor and the electrical cable that exits from the bottom are also noticed;
  • Figure 2 is a top view of the aeration device, the four floats that surround the centrifuging rotor are clearly visible and the tubes that exit from the top of the rotor and the motor cover at the center also can be seen equally well and so can the supporting structure that connects the floats to the rotor;
  • FIG 3 shows the cross-section A-A of Figure 2, at the center we see the inside of the centrifuging rotor, we note the two tubes that are inclined and diverge with respect to the central pivot with the ends protected by the cylinder of the rotor and are fixed to a flange that is recessed on the bottom of said cylinder;
  • the central pivot is hollow, for the passage of the electrical cable of the motor, and is integral with the supporting structure supported by the lateral floats, in practice the centrifuging rotor is freewheeling on the central pivot and can rotate freely with the actuation of the electric motor;
  • the motor also is integral with the central pivot, two sleeve bearings or the like, allow the low-friction rotation of the centrifuging rotor that is fitted by gravity on the central pivot, a cylindrical spacer wraps around the base of said central pivot and supports the rotor with a sliding contact;
  • Figure 4 is a three-dimensional view of the aeration device with three equidistant floats, at the center one can see the centrifuging rotor with six tubes that exit from the rotor containment cylinder, all the tubes are equally spaced and with the same inclination with respect to the central pivot, on the central top of said cylinder we see the engine cover, at the base one can glimpse the supporting structure that connects the floats to the rotor and the electrical cable that exits from the bottom;
  • Figure 5 is a top view of the aeration device, here we see clearly the six equally spaced tubes that exit from the top of the containment cylinder, the motor cover is clearly visible at the center of the rotor with the three external floats, in particular one notices the tubes that diverge symmetrically;
  • Figure 6 is the sectional view of the aeration device of Figure 2, where one can see the device immersed in the water, the transverse undulated line indicates the level, one notices the water inside the two tubes arranged at the same level (communicating vessels), the arrows indicate the path of the water during the immersion step, we notice that the water does not invade the internal space of the containment cylinder since the underlying flange, which is integral with the ends of the tubes, is hermetic with respect to the inside of the cylinder and to the tubes themselves, the upper flange also closes hermetically said cylinder, the underlying flange is fixed internally to the cylinder, leaving free a certain recessed space, also invaded by the water;
  • Figure 7 shows the same sectional view of Figure 6 of the aeration device, here we see the upper arrow that shows the rotating centrifuging rotor, one clearly sees the water exiting from the upper ends of the tubes, and by negative pressure other water is drawn continuously from the bottom of the cylinder, all the arrows indicate
  • Figure 8 shows the same sectional view of the aeration device of Figures 6 and 7 with a variation on the upper ends of the tubes, we see two tubes added parallel to the plane, these added tubes are provided with a plurality of small holes connected to the outside when the water flows rapidly, due to the Venturi effect it, is aspirated (the small arrows indicate the entry of the atmospheric air which mixes with the water, further enriching it with oxygen);
  • Figure 9 is a top view of two centrifuging rotors, surrounded by four floats for support in water, the central hole might be useful to insert the double aerator on a pole that is fixed on the bottom of the pond, at the same time ensuring a fixed point, one notices that both said rotors have their own electric motor;
  • Figure 10 is the top view of an aeration device with three centrifuging rotors, each one has its own electric motor, to the side of the figure we see a pointed pole with a keying portion on its side, the diameter of the pole is slightly smaller than that of the through hole provided at the center of the aerator;
  • Figure 1 1 is a three-dimensional view of a double aerator with the centrifuging rotors moved by means of a belt, a single motor provides the rotational energy, two idle pulleys and the central driving pulley provide the opposite rotation, therefore the device does not tend to rotate on itself since the forces involved are balanced, the electric motor is immersed below the base and is fixed to the shaft of the central pulley (not shown in the drawings);
  • Figure 12 is a top view of the aeration device of Figure 1 1 to highlight more clearly the connection of the two belts or the like, the central pulley is the driving pulley with a double groove, the other two are idle, the arrows indicate all the movements.
  • a floating aeration device designated generally by the reference numeral 1 is characterized in that it is provided with at least three floats 12 or by a plurality of floats 12 or by a single float that is conveniently shaped (not shown in the drawings), by a centrifuging rotor 1 composed of two or a plurality of rectilinear tubes 4, all having the same length and the same diameter, all assembled in a circle around a central pivot 22 and equally inclined in a shape that diverges upward, of a cylinder 2 provided with two flanges, an upper flange 2' and a lower flange 2" which is fixed internally, of a tube 20 which passes inside the cylinder 2 with the ends welded hermetically to the center of the flanges 2' and 2", by a hollow central pivot 22 for the passage of the electrical cable 16, by two sleeve bearings, bearings or the like 24 and 26, by a spacer 20' fitted onto the pivot 22 up to its base in
  • the wave motion caused by the sprays is ideal for breaking up mats of algae and discourages the reproduction of mosquitoes.
  • Figure 1 shows the aeration device 1 composed of four floats 12 with a through hole which are fitted on the corresponding vertical rods 10 and are locked by a stroke limiter 14 which is a simple pin inserted on the rod 10, the total volume of the floats is sufficient to support the weight of the entire device, allowing it to float in water.
  • the floats 12 are integral with the rods 10, which are fixed to the supporting structure 8, all together they support the central rotor which is composed of a cylinder 2 and two inclined tubes 4 that exit from the cylinder 2 from the upper flange 2', on the top of the cylinder 2 and at the center of the flange 2' one can see the cover 6' that encloses with adapted screws 6" the internal electric motor, at the bottom we see the electrical cable 16 which exits from the bottom of the structure 8; the tension members 18 which are used to position and fix the aeration device in the preset point are also visible.
  • FIG 2 is a top view of the aeration device 1 of Figure 1 , one can see clearly the floats 12 which are integral with the rods 10 that support, by means of the structure 8, the central centrifuging rotor, one clearly notices the two diverging tubes 4 that exits from the flange 2' of the cylinder 2, one also notices the electrical cable 16; the motor is housed under the cover 6' which is fixed by means of the screws 6" to the flange 2' which is integral with the cylinder 2.
  • FIG 3 shows the sectional view A-A of the aeration device 1 of Figure 2; initially we notice the two external floats 12 coupled to their own rod 10 adjacent to their own stroke limiter 14, the rods 10 are perpendicular and integral to the supporting structure 8, the centrifuging rotor is also clearly visible at the center of the supporting structure 8 and is composed of a cylinder 2, of two inclined tubes 4 which are inclined so as to diverge and be mutually opposite with the ends fixed to the flange 2" of the cylinder 2, we notice that the flange 2" is recessed on the cylinder 2 for a length 28 from the bottom thereof.
  • a hollow central pivot 22 is fixed at right angles at the center of the supporting structure 8' by means of a ring 8" and acts as a supporting pivot for the aerator rotor 1 ; the cavity is instead used for the passage of the electrical cable 16 of the motor 6 that is fixed to the upper end of said pivot; to ensure the rotation of the aerator 1 there are the two sleeve bearings or the like 24 and 26 arranged on the internal ends of the cylinder 20, the cylinder or tube 20 is integral, at the center of the cylinder 2 to the two flanges 2' and 2" the cylinder 2 of the aerator rotor 1 is spaced from the supporting structure 8 by a preset length 30, one notices that the shaft of the electric motor 6 is directed upward and engaged with the cover 6', the cover 6', in addition to being hermetic with the flange 2' is used in particular to transmit the rotary motion of the electric motor 6 to the aerator rotor 1 , adapted screws 6" render the cover 6' integral with the upper
  • Figure 4 shows in a perspective view a centrifuging aeration device 1 , with six tubes that exit from the upper flange 2', tension members 18 and an electrical cable 16 that exits from the center of the reinforcement flange 8'.
  • the supporting structure 8 accommodates integrally at the ends the rods 10 for the floats 12, the pins 14 act as stroke limiters for the floats 12.
  • Figure 5 shows a top view of the aeration device 1 of Figure 4, one can see clearly the motor cover 6', which is fixed by means of the screws 6" to the center of the flange 2', the six inclined tubes 4 exit in a shape that is inclined so as to diverge upward from the upper flange 2' of the cylinder 2.
  • Figure 6 shows the aeration device 1 floating on the water 32; the undulated line shows the level 32' thereof; one should notice the stippled water that surrounds the submerged part of the device 1 ; the arrows 34' indicate the water 32 that invades the space 34 on the bottom of the cylinder 2 and the internal space 36 of the tubes 4, the arrows 36' indicate the entry of the water 32 that has occurred spontaneously during immersion and due to the principle of communicating vessels has arranged itself at the same level as the water of the pond, immediately after immersion one can see the device 1 that floats and one notices only the parts that protrude from the level 32' of the water 32.
  • Figure 7 shows the aeration device 1 in operation; the arrow 48 shows the direction of rotation chosen, which is optional; the water 32 enters from the bottom 34 of the cylinder 2 within the inclined tubes 4 and then exits in a jet 40 from the upper ends of the tubes 4, the path is indicated by the arrows 34', 36', 38' and 40.
  • the cited method derives from the fact that an inclined tube has been immersed in water and has been rotated about a fixed pivot.
  • the water contained in the immersed part of the tube is subjected to centrifugal force and rises inside it, causing a negative pressure which draws other water, the new water that is drawn is forced to acquire immediately the rotation rate of the tube and therefore also the centrifugal force to which it is subjected.
  • the internal water acquires speed by friction until it reaches the speed of the water of the bucket; the greatly rotating water acquires kinetic energy and is subjected to centrifugal force, but if Newton's rotating bucket were immersed and a hole were opened suddenly at the center of the bottom, water at rest would enter immediately and would mix with the rotating water, causing a great slowing with an inevitable descent from the internal walls of the bucket and not only; the water rotating inside the bucket would undergo a constant slowing from the external static water due to continuous contact.
  • a tube immersed in water which rotates about an axis is subjected to great friction and at the same time causes a rotary motion of the mass of water in which it is immersed, as if it were stirring it.
  • a system has been devised which is shown and described in the present invention, i.e., the isolation and protection of the rotating parts designed to be immersed, which are: the ends of the tubes 4; an adapted containment cylinder 2 with a recessed flange 2", the entire assembly being sealed hermetically, provide for this purpose, the only friction is reduced to the friction of the external surface of the cylinder 2 and of the flat surface of the flange 2", the recess 28 of the flange 2" on the bottom of the cylinder 2 is necessary to provide a guide for the rotation of the water 34 so as to facilitate the suction of the rotating tubes 4.
  • Figure 8 shows the same rotating aeration device 1 of Figure 7, shows the tubes 42 added to the upper ends of the tubes 4 and arranged in a shape that is preferably parallel to the plane.
  • the tubes 42 are provided with a plurality of small holes 42' which are connected to the outside and when the water 40 passes rapidly 40' inside them and, due to the Venturi effect, draws atmospheric air from outside.
  • the arrows 44 indicate the intake of air; the water jets 46 that exit with a tangential direction 40' are already enriched with oxygen by said Venturi effect; the further enrichment is received from the air during the arc-like path before touching the surface of the pond.
  • the arrow 48 indicates that it is rotating about the central pivot, the static water 32' of the pond initially invades the recess 34 of the container cylinder and then enters the pipes 4; the arrows 38' indicate the rise of the water due to centrifugal force, after having reached the ends of the inclined tubes 4 it is directed parallel to the plane through the tubes 42 provided with holes 42' and is partially oxygenated. Then the jets 46, before touching the surface of the pond, are oxygenated further.
  • Figure 9 is a top view of two aerator rotors that are coupled, this to increase the oxygenating power, not only due to the increase of the quantity of water displaced but due to the fact that part of the jets that exit from the aerator rotors 1 collide, causing microdroplets which enrich further with oxygen; the two aeration devices 1 have their own electric motor and rotate in opposite directions to cancel the acting forces.
  • Figure 10 shows three rotating devices arranged in a circle, in this case also the reason remains the preceding one of Figure 9, to increase the flow rate of water and increase the number of impacts of the jets for further enrichment of oxygen, the visual effect is also more pleasant; the three aeration devices 1 have their own electric motor which rotates with the direction programmed by the operator.
  • Figure 1 1 is a perspective view of two centrifuging aerators 1 , which are made to rotate by a single electric motor with opposite direction of rotation in order to balance the reacting forces, adapted belts or the like provide for this.
  • Figure 12 is a top view of the aerator of Figure 1 1 in order to show better the connections of the belts, the pulley 58 is the driving pulley, the electric motor is submerged (not shown).
  • any centrifugal pump which is currently commercially available, is governed by physical laws with mathematical formulas. Every pump has its own head, its own flow-rate and also its own rotation rate, but the difference between the existing centrifugal pump and the pumping system according to the invention is considerable: the delivery tube of a pump is subjected to pressure, in the case of the device according to the invention there is no pressure, indeed the opposite occurs, a negative pressure is created on the immersed end of the tubes 4 which renders them self-priming.
  • the tubes 4 must be preferably rectilinear but also curved, according to the requirements.
  • the length of the tubes 4, which are straight and open at the ends, can be any, insofar as allowed by the supporting structure.
  • the water would rise in any case without being propelled by the underlying water, the rotation rate is important and proportional to the quantity of water to be pumped in the unit time.
  • the centrifuging rotor according to the invention can be made to rotate also with mechanical systems (not shown), for example: by utilizing wind power in highly ventilated locations, or with the energy of the water of a river or of a waterfall, the use of solar power also can find an application, in view of the small amount of energy required.

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)

Abstract

L'invention concerne un système tournant qui utilise une force centrifuge pour pomper l'eau d'un niveau inférieur à un niveau supérieur, la partie sous-jacente du système de pompage étant partiellement immergée dans l'eau et/ou dans un fluide quelconque et qui devient auto-amorçant pendant la rotation. Toutes les pompes existantes nécessitent des mécanismes internes (rotor) et une partie ou un boîtier de confinement fixe (stator), tandis que le nouveau système tournant, selon l'invention, utilise une force centrifuge pour pomper l'eau, mais n'a pas de stator. Le nouveau rotor centrifuge est caractérisé en ce qu'il est constitué d'au moins deux ou d'une pluralité de tubes qui sont dirigés vers le haut et montés d'une seule pièce dans un cercle autour d'un pivot central qui est perpendiculaire au plan, les tubes divergeant par rapport au pivot, adoptant une forme conique qui s'élargit vers le haut, le degré d'inclinaison des tubes, par rapport au pivot central, étant égal pour tous et pouvant varier en fonction des exigences. Lorsque les extrémités inclinées des tubes sont immergées dans l'eau pendant un certain temps, l'eau remplit l'espace à l'intérieur des extrémités immergées et, lorsque tous les tuyaux tournent autour du pivot central, l'eau, sous l'effet d'une force centrifuge, elle s'élève le long des tubes inclinés jusqu'à ce qu'elle sorte par les extrémités supérieures, comme si elle sortait d'une fontaine tournante à jets multiples ; l'eau est ainsi oxygénée.
PCT/IB2016/001538 2015-10-26 2016-10-26 Aérateur de surface centrifuge pour étangs et/ou analogues WO2017072573A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102015000065208 2015-10-26
ITUB2015A005592A ITUB20155592A1 (it) 2015-10-26 2015-10-26 Aeratore centrifugo per laghetti e/o simili

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108726695A (zh) * 2018-07-06 2018-11-02 国合凯希水体修复江苏有限公司 微气泡溶解扩散装置
CN114130182A (zh) * 2021-11-24 2022-03-04 华能山东发电有限公司众泰电厂 一种用于火力发电厂的脱硫吸收塔氧化风输送装置

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FR2076672A5 (en) * 1970-01-23 1971-10-15 Sogreah Mixing unit - esp for aeration of waste water
US4290885A (en) * 1977-12-22 1981-09-22 Dochan Kwak Aeration device
DE3105765A1 (de) * 1980-02-19 1982-01-28 Toyo Denki Kogyosho Co., Ltd., Kitakyushu, Fukuoka Fluid-ruehrvorrichtung
BE893687R (nl) * 1980-07-08 1982-10-18 Haegeman Johny H Inrichting voor het mengen van gas met vloeistof of omgekeerd en voor het ontgassen van een vloeistof
JPS60176299U (ja) * 1984-04-26 1985-11-21 三菱電線工業株式会社 複数回転式エアレ−タ
CH654560A5 (en) * 1981-10-22 1986-02-28 Paul Ketterer Method and device for oxygen enrichment of the deep water in stagnant waters
WO2004065312A1 (fr) * 2003-01-23 2004-08-05 Vesi-Eko Oy Water-Eco Ltd Procede et dispositif permettant d'augmenter la teneur en oxygene de l'hypolimnion et d'eliminer les gaz nocifs de l'hypolimnion

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2076672A5 (en) * 1970-01-23 1971-10-15 Sogreah Mixing unit - esp for aeration of waste water
US4290885A (en) * 1977-12-22 1981-09-22 Dochan Kwak Aeration device
DE3105765A1 (de) * 1980-02-19 1982-01-28 Toyo Denki Kogyosho Co., Ltd., Kitakyushu, Fukuoka Fluid-ruehrvorrichtung
BE893687R (nl) * 1980-07-08 1982-10-18 Haegeman Johny H Inrichting voor het mengen van gas met vloeistof of omgekeerd en voor het ontgassen van een vloeistof
CH654560A5 (en) * 1981-10-22 1986-02-28 Paul Ketterer Method and device for oxygen enrichment of the deep water in stagnant waters
JPS60176299U (ja) * 1984-04-26 1985-11-21 三菱電線工業株式会社 複数回転式エアレ−タ
WO2004065312A1 (fr) * 2003-01-23 2004-08-05 Vesi-Eko Oy Water-Eco Ltd Procede et dispositif permettant d'augmenter la teneur en oxygene de l'hypolimnion et d'eliminer les gaz nocifs de l'hypolimnion

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108726695A (zh) * 2018-07-06 2018-11-02 国合凯希水体修复江苏有限公司 微气泡溶解扩散装置
CN114130182A (zh) * 2021-11-24 2022-03-04 华能山东发电有限公司众泰电厂 一种用于火力发电厂的脱硫吸收塔氧化风输送装置
CN114130182B (zh) * 2021-11-24 2023-08-29 华能山东发电有限公司众泰电厂 一种用于火力发电厂的脱硫吸收塔氧化风输送装置

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