WO1992012788A1 - Sistema de generacion de microburbujas en una masa liquida - Google Patents
Sistema de generacion de microburbujas en una masa liquida Download PDFInfo
- Publication number
- WO1992012788A1 WO1992012788A1 PCT/ES1992/000008 ES9200008W WO9212788A1 WO 1992012788 A1 WO1992012788 A1 WO 1992012788A1 ES 9200008 W ES9200008 W ES 9200008W WO 9212788 A1 WO9212788 A1 WO 9212788A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- porous
- diffuser
- diffusers
- liquid mass
- holes
- Prior art date
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000009434 installation Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 10
- 239000011148 porous material Substances 0.000 claims abstract description 5
- 238000000746 purification Methods 0.000 claims abstract description 3
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 241000251468 Actinopterygii Species 0.000 claims description 4
- 238000000265 homogenisation Methods 0.000 abstract description 7
- 239000003792 electrolyte Substances 0.000 description 5
- 238000007743 anodising Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- 238000006424 Flood reaction Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000002048 anodisation reaction Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Classifications
-
- 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
- B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
- B01F23/23105—Arrangement or manipulation of the gas bubbling devices
- B01F23/2312—Diffusers
- B01F23/23126—Diffusers characterised by the shape of the diffuser element
- B01F23/231265—Diffusers characterised by the shape of the diffuser element being tubes, tubular elements, cylindrical elements or set of tubes
-
- 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
- B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
- B01F23/23105—Arrangement or manipulation of the gas bubbling devices
- B01F23/2312—Diffusers
- B01F23/23123—Diffusers consisting of rigid porous or perforated material
-
- 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
- B01F23/237—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media
- B01F23/2373—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media for obtaining fine bubbles, i.e. bubbles with a size below 100 µm
Definitions
- the invention relates to a system intended to homogenize the mass of a liquid by means of the injection of air bubbles into the liquid mass itself, thereby agitating it to achieve a uniform homogeneity thereof.
- the system is applicable in electrolytic processes, gas transfers, water purification, fish factories, etc.
- the anodizing of the pieces is carried out in a horizontal arrangement of these, due to the small height with which the vats are made (normally between 2 and 3 m.). In this way, the height traveled by the bubbles injected into the electrolyte, barely allows time to come together before reaching the surface, so that the methods used in the injection of air bubbles can be considered acceptable.
- the effect that is intended to be achieved with the injection of bubbles is to ensure that they have the smallest possible diameter and minimum kinetic energy, that is, the lowest possible speed, so that the bubbles remain ina lterab during their focus on the tank, preventing as much as possible from joining together.
- a homogenization device is claimed using a porous diffuser, said device consisting of a gas distributor element to which several injectors are inserted through which the gas circulates at high speed and covering the injectors are precisely located the porous elements or diffusers, all in such a way that by injecting the gas to the aforementioned diffusers, it diffuses throughout the porous mass, reducing the velocity.
- a gas distributor element to which several injectors are inserted through which the gas circulates at high speed and covering the injectors are precisely located the porous elements or diffusers, all in such a way that by injecting the gas to the aforementioned diffusers, it diffuses throughout the porous mass, reducing the velocity.
- the exit of the gas through the diffusers produces microbubbles perfectly distributed throughout the surface of the diffusers and perfectly transferred and homogenized in the liquid mass.
- porous diffusers when air or fluid blows cease through it, water penetrates through the aforementioned ceramic diffusers, occupying the inside of the pipe, so that in A short period of time is achieved to reach the clogging of these porous pieces, preventing the production of bubbles.
- the branches that constitute the conduits where the porous diffusers are located are mounted in series, so that the loss of load is important and prevents the last diffusers of each branch from evacuating the water introduced to its through what is chosen on the one hand to the placement of non-return valves that prevent the penetration of water to the pipes when the blow stops, and on the other hand, and in order to get a proper blow in the last diffusers of each branch , a greater amount of air is blown, which causes the first diffusers of the branches to inject more air than is due.
- patent 4,048,072 intended for the same purposes, uses as a means of outlet of the bubbles an enclosing chamber between an external mesh and an inner concentric tube, whose chamber is filled with a granulated product, such as pebbles .
- the system that has been advocated has been designed to solve all this problem to full satisfaction by offering a simple and effective solution, based first of all on the fact that the installation will be carried out by meshes instead of the serial arrangement of the branches which constitute the conventional installations, and that arrangement in meshes is such that the porous diffusers are arranged in parallel thereby avoiding the problems of the serial arrangement referred to above.
- the air outlet is not carried out directly through the porous diffusers, as is traditional, but that before reaching these porous diffusers the air passes through holes provided in a concentric tube to the porous diffuser whose holes lead to a common channel, before reaching the porous diffuser itself, to equalize the pressures.
- These concentric tubes logically determine a chamber that can never be filled with liquid, also ensuring uniform air pressure.
- the said holes of the concentric tube that communicate the chamber determined therein as the common chamber provided before reaching the porous diffuser are made in the lower zone, which determines that the useful output surface of bubbles are made in correspondence with the upper half of the diffuser pore, while the lower half, approximately, it remains as a useless surface and no bubbles will flow through it, which results in such bubbles rising through the liquid mass to the surface of the bubble without joining each other.
- the section of the holes of each main branch is greater than the sum of the surface of the calibrated or outlet holes referred to above, in order to cause overpressures in the ducts to achieve a correct air outlet.
- porous diffusers in parallel, forming meshes, resembles an electrical scheme where the resistance is similar to the loss of load, so that the total load loss will be equivalent to that of an element divided by the number of elements, and therefore the blowing pressure of the equipment similar to the voltage for the same air passage, the blow pressure must be much lower.
- Figure 1 Schematically shows the grid-like arrangement of the porous diffusers provided in a conventional installation for the homogenization of a liquid mass.
- Figure 2 It shows a perspective, with cross section, of the lower half of a porous diffuser including the concentric tube provided with the holes calibrated in its lower part and which flow into a common chamber.
- a section of what is a porous diffuser (2) is shown, consisting of a tubular body (4), logically of porous material, inside which a tube (5), preferably plastic, is concentrically located , such as PVC, at the bottom of which it includes a plurality of calibrated holes (6) that flow into a common and linear chamber (7) before reaching the body (4) of the general porous diffuser (2).
- the orifice section of each main branch must be greater than the sum of the surface of the outlet orifices (6), in order to cause overpressures in the ducts and correct air outflow.
- the air that enters the chamber that forms the concentric tube (5) reaches the holes (6) of the latter and before reaching the body or porous diffuser (4) flows into a linear and common chamber (7) that , as just said, it joins all the holes (6), achieving an equalization of the pressures.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP92503065A JPH05505342A (ja) | 1991-01-18 | 1992-01-17 | 液体中に微小気泡を発生させるシステム |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ESP9100133 | 1991-01-18 | ||
ES9100133A ES2027605A6 (es) | 1991-01-18 | 1991-01-18 | Sistema de generacion de microburbujas en una masa liquida. |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1992012788A1 true WO1992012788A1 (es) | 1992-08-06 |
Family
ID=8270838
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/ES1992/000008 WO1992012788A1 (es) | 1991-01-18 | 1992-01-17 | Sistema de generacion de microburbujas en una masa liquida |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0523202A1 (es) |
JP (1) | JPH05505342A (es) |
AU (1) | AU1176992A (es) |
CA (1) | CA2078565A1 (es) |
ES (1) | ES2027605A6 (es) |
WO (1) | WO1992012788A1 (es) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO317340B1 (no) | 2001-09-14 | 2004-10-11 | Oxseavision As | Ny anordning for oksygenering av sjovann |
BE1020820A3 (nl) * | 2012-07-05 | 2014-05-06 | Atlas Copco Airpower Nv | Beluchtingstoestel, een gebruik ervan, en waterzuiveringsinstallatie met een dergelijk beluchtingstoestel. |
WO2017187646A1 (ja) * | 2016-04-29 | 2017-11-02 | 憲司 久木野 | 気泡の粒径分布を任意に調整できるナノサイズ気泡発生装置 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1271718A (fr) * | 1960-08-06 | 1961-09-15 | Montage des éléments diffuseurs pour l'épuration des eaux | |
US3279773A (en) * | 1963-10-31 | 1966-10-18 | Albert L Schwartz | Gas distributing structure |
US3911068A (en) * | 1973-07-02 | 1975-10-07 | Jock Hamilton | Pool chlorination diffuser |
DE3744608A1 (de) * | 1987-12-31 | 1989-07-13 | Schumacher Sche Fab Verwalt | Vorrichtung zum begasen von fluessigkeiten |
US4960546A (en) * | 1989-04-19 | 1990-10-02 | Charles E. Tharp | Diffuser mounting arrangement for waste water aeration systems |
-
1991
- 1991-01-18 ES ES9100133A patent/ES2027605A6/es not_active Expired - Lifetime
-
1992
- 1992-01-17 JP JP92503065A patent/JPH05505342A/ja active Pending
- 1992-01-17 EP EP92902926A patent/EP0523202A1/en not_active Withdrawn
- 1992-01-17 AU AU11769/92A patent/AU1176992A/en not_active Abandoned
- 1992-01-17 CA CA002078565A patent/CA2078565A1/en not_active Abandoned
- 1992-01-17 WO PCT/ES1992/000008 patent/WO1992012788A1/es not_active Application Discontinuation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1271718A (fr) * | 1960-08-06 | 1961-09-15 | Montage des éléments diffuseurs pour l'épuration des eaux | |
US3279773A (en) * | 1963-10-31 | 1966-10-18 | Albert L Schwartz | Gas distributing structure |
US3911068A (en) * | 1973-07-02 | 1975-10-07 | Jock Hamilton | Pool chlorination diffuser |
DE3744608A1 (de) * | 1987-12-31 | 1989-07-13 | Schumacher Sche Fab Verwalt | Vorrichtung zum begasen von fluessigkeiten |
US4960546A (en) * | 1989-04-19 | 1990-10-02 | Charles E. Tharp | Diffuser mounting arrangement for waste water aeration systems |
US4960546B1 (en) * | 1989-04-19 | 1996-04-09 | Environmental Dynamics Inc | Diffuser mounting arrangement for waste water aeration systems |
Also Published As
Publication number | Publication date |
---|---|
ES2027605A6 (es) | 1992-06-01 |
CA2078565A1 (en) | 1992-07-19 |
JPH05505342A (ja) | 1993-08-12 |
AU1176992A (en) | 1992-08-27 |
EP0523202A1 (en) | 1993-01-20 |
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