EP1140340B1 - Vorrichtung zum mischen zweier fluidkomponenten - Google Patents
Vorrichtung zum mischen zweier fluidkomponenten Download PDFInfo
- Publication number
- EP1140340B1 EP1140340B1 EP99966961A EP99966961A EP1140340B1 EP 1140340 B1 EP1140340 B1 EP 1140340B1 EP 99966961 A EP99966961 A EP 99966961A EP 99966961 A EP99966961 A EP 99966961A EP 1140340 B1 EP1140340 B1 EP 1140340B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- openings
- space
- tubes
- chamber
- fluid
- 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.)
- Expired - Lifetime
Links
- 239000012530 fluid Substances 0.000 title claims description 29
- 238000002156 mixing Methods 0.000 title claims description 29
- 239000000203 mixture Substances 0.000 claims description 9
- 125000006850 spacer group Chemical group 0.000 description 16
- 239000007789 gas Substances 0.000 description 12
- 230000003197 catalytic effect Effects 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000008240 homogeneous mixture Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/311—Injector mixers in conduits or tubes through which the main component flows for mixing more than two components; Devices specially adapted for generating foam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/432—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction with means for dividing the material flow into separate sub-flows and for repositioning and recombining these sub-flows; Cross-mixing, e.g. conducting the outer layer of the material nearer to the axis of the tube or vice-versa
Definitions
- the invention relates to a device for mixing two fluid components. It can be gaseous or liquid components.
- Fluid component mixers are known.
- EP 0 303 439 A2 a gas mixer and distributor for a reactor, for example a catalytic one Reactor known.
- EP GB 735 519 A a method and a Apparatus for mixing gases known, the mixing over a relative small area.
- the invention is based, the mixture very homogeneous and the task to generate large areas.
- each row in turn consists of three rows of openings, namely a central row of first openings and two flanking rows of second openings.
- the Mixture is thus formed on the entire surface of the field, on everyone Place the field with the same homogeneity.
- the degree of homogeneity is high, conditional by assigning the first to the second openings, namely the flanking a central row through two adjacent outer rows.
- the device is particularly suitable for mixing two gaseous components. It is proposed in a further development of the invention that the common The plane of the tubes is aligned substantially horizontally, the first Room of the chamber is the lower one and the second room is the upper one.
- Essential area of application are surface burners, catalytic reactors and the like. These form the top cover of the chamber and are homogeneous with the Mixture applied to a large area. For example, refer to catalytic Burners such as those used in fuel cell technology.
- the fluid components can be blown out or sucked out of the openings become.
- Individual spacer elements can be arranged between adjacent tubes between which the first openings are formed. It is more advantageous to use a strip-shaped spacer that has the first openings is provided. In any case, it is recommended that the latter, like the second openings, to be slit-shaped. The spacers stabilize the entire tube matrix, so that thermal stresses are evenly distributed over the chamber.
- the one another opposite walls of adjacent pipes are flat and starting from the associated spacer, into the lower chamber diverge. This leads to the upstream side of the spacer, i.e. that is, on the upstream side the first openings to a nozzle-shaped design, in its narrowest Cross section the first openings are arranged. The flow of some Fluid component is thus accelerated. Right behind the narrowest cross section open the second openings formed in the tubes. So the blending effect is optimal.
- the arrangement is such that the two fluid components at the mixing point preferably at least approximately the same flow velocities exhibit.
- the mixing ratio is set by the area ratio of the first to the second openings, taking into account density and Temperature of the fluid components.
- the mixing zone above each spacer is optimized that the opposite walls of adjacent pipes are flat are and, starting from the associated spacer, in the upper room of the The chamber diverge.
- the feed device connected to the pipes is designed as a premixing chamber, which by means of a wall, the one Has a plurality of outlet openings for impact jets, in a first and a second mixing room is divided into that a supply line for a to the first room first fluid flow and to the second mixing space a supply line for a second fluid flow is connected and that the second mixing chamber one to the Has chamber connected outlet opening for the fluid mixture.
- the outlet openings are preferably designed as tubular extensions, which have a baffle plate at their end.
- the device is thereby characterized in that the premixing chamber and the chamber form a structural unit and that the pre-mixing chamber and its outlet opening over the length of the Extend chamber.
- the device has a chamber 1, which consists of a plurality of Pipes 2 is divided into a lower room 3 and an upper room 4.
- a hydrogen-rich gas is introduced, which from a Fuel cell is coming.
- the tubes 2 are filled with a mixture of air and recirculation gas of the fuel cell.
- the device serves the two To mix fluid components gas and recirculation gas homogeneously, namely to produce a large-area mixture, which one Catalyst burner is supplied. This forms the upper end of chamber 1.
- Figure 2 shows two adjacent tubes 2 in front view.
- the two pipes are connected to each other by a spacer 5.
- the spacer 5 has first openings 6.
- Figure 3 shows the arrangement of Figure 2 in plan view.
- the trained in the spacer 5 Row of the first openings 6 is on both sides of a row of the second Flanked openings 9. All openings are slit-shaped. Moreover are the openings of all three rows of openings in the pipe longitudinal direction against each other added.
- the arrangement is such that the second openings 9 of an outer row, the second openings 9 of the other outer Overlap the row, while overlapping the first openings 6 in the middle row.
- the arrangement is symmetrical. It was found, that optimal mixing results can be achieved in this way, above the total area of chamber 1.
- a premixing chamber 10 is shown schematically in FIG.
- a first mixing room 11 is separated from a second mixing space 12 by a wall 13.
- the first Mixing room 11 is supplied with air via an air supply line 14.
- the second Mixing chamber 12 is via a recirculation gas supply line 15 with the one not shown Fuel cell connected.
- the wall 13 has a plurality of outlet openings 16 in the form of tubular ones Extensions on top of each other in rows side by side and one behind the other the entire area of the premixing chamber 10 is arranged.
- the tubular extensions 16 each have an impact plate 17 at their open end.
- the air hits perpendicular to the baffle plates and enters at a substantially right angle the second room 12 in which the recirculation gas is located. To this In this way, the two non-combustible gases become homogeneous and cover a large area mixed together.
- the relatively cold fresh air is thereby Recirculation gas, which has a temperature of about 650 ° C, warmed up.
- the Air temperature is about the operating temperature of the catalyst burner raised.
- the premixing chamber has an outlet opening 18 which, in a manner not shown and is connected to the chamber 1 shown in FIG. 1.
- the premixing chamber 10 and the chamber 1 form a structural unit.
- the premixing chamber 10 and the outlet opening 18 extend substantially over the Length of the chamber 1. This means that the gas mixture from the premixing chamber becomes all Pipes 2 supplied to the chamber 1.
- the tubes unlike the hexagonal shape shown, one have a square cross-section.
- a pentagonal shape with an upper tip and a lower horizontal conclusion is equally possible.
- slot-shaped openings can be worked with circular or oval openings become.
- Different opening shapes can also be combined.
- the lower space can extend continuously below the tube matrix or be divided into individual sections that run in the longitudinal direction of the pipe. Also exists the possibility of dividing the upper room 4 into sectors, although the characteristic of the large area is retained.
- the orientation When applied to a surface burner, the orientation is essentially horizontal the chamber particularly advantageous. For other reactions, the orientation can the chamber can be changed as needed.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
Description
- daß eine Kammer vorgesehen ist, die durch eine Mehrzahl von im wesentlichen in einer gemeinsamen Ebene im wesentlichen parallel zueinander ausgerichteten Rohren in einen ersten und einen zweiten Raum unterteilt ist,
- daß der erste Raum der Kammer an eine Zuführungseinrichtung für die eine Fluidkomponente angeschlossen ist,
- daß die Rohre an eine Zuführungseinrichtung für die andere Fluidkomponente angeschlossen sind,
- daß zwischen benachbarten Rohren mindestens ein Abstandshalter vorgesehen ist, der erste Öffnungen für den Durchtritt des einen Fluids aus dem ersten in den zweiten Raum der Kammer bildet, und
- daß benachbarte Rohre zweite Öffnungen für den Austritt des anderen Fluids aus den Rohren in den zweiten Raum aufweisen,
- wobei die ersten und die zweiten Öffnungen einander benachbart angeordnet sind.
Claims (14)
- Vorrichtung zum Mischen zweier Fluidkomponenten,
dadurch gekennzeichnet,daß eine Kammer (1) vorgesehen ist, die durch eine Mehrzahl von im wesentlichen in einer gemeinsamen Ebene im wesentlichen parallel zueinander ausgerichteten Rohren (2) in einen ersten (3) und einen zweiten Raum (4) unterteilt ist,daß der erste Raum (3) der Kammer (1) an eine Zuführungseinrichtung für die eine Fluidkomponente angeschlossen ist,daß die Rohre (2) an eine Zuführungseinrichtung für die andere Fluidkomponente angeschlossen sind,daß zwischen benachbarten Rohren (2) mindestens ein Abstandshalter (5) vorgesehen ist, der erste Öffnungen (6) für den Durchtritt des einen Fluids aus dem ersten (3) in den zweiten Raum (4) der Kammer (1) bildet, unddaß benachbarte Rohre (2) zweite Öffnungen (9) für den Austritt des anderen Fluids aus den Rohren in den zweiten Raum (4) aufweisen,wobei die ersten und die zweiten Öffnungen (6, 9) einander benachbart angeordnet sind. - Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet, daß die gemeinsame Ebene der Rohre (2) im wesentlichen horizontal ausgerichtet ist, wobei der erste Raum (3) der Kammer (1) der untere und der zweite Raum (4) der obere ist. - Vorrichtung nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß die zweiten Öffnungen (9) benachbarter Rohre (2) sowohl relativ zueinander als auch relativ zu den zugehörigen ersten Öffnungen (6) geneigt angeordnet sind. - Vorrichtung nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, daß die zweiten Öffnungen (9) benachbarter Rohre (2) in Rohrlängsrichtung sowohl gegeneinander als auch gegen die zugehörigen ersten Öffnungen (6) versetzt angeordnet sind. - Vorrichtung nach Anspruch 4,
dadurch gekennzeichnet, daß die Versetzung der Öffnungen (6, 9) symmetrisch ist. - Vorrichtung nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, daß die Öffnungen (6, 9) schlitzförmig ausgebildet sind. - Vorrichtung nach Anspruch 6,
dadurch gekennzeichnet, daß die zweiten Öffnungen (9) benachbarter Rohre (2) quer zur Rohrlängsrichtung sowohl einander als auch die zugehörigen ersten Öffnungen (6) überlappend angeordnet sind. - Vorrichtung nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet, daß die einander gegenüberliegenden Wände (7) benachbarter Rohre (2) eben ausgebildet sind, und, ausgehend von dem zugehörigen Abstandshalter (5), in den ersten Raum (3) der Kammer (1) hineindivergieren. - Vorrichtung nach einem der Ansprüche 1 bis 8,
dadurch gekennzeichnet, daß die einander gegenüberliegenden Wände (8) benachbarter Rohre (2) eben ausgebildet sind und, ausgehend vom zugehörigen Abstandshalter (5), in den zweiten Raum (4) der Kammer (1) hineindivergieren. - Vorrichtung nach Anspruch 8 oder 9,
dadurch gekennzeichnet, daß die Rohre (2) einen im wesentlichen sechseckigen Querschnitt aufweisen. - Vorrichtung nach Anspruch 8 oder 9,
dadurch gekennzeichnet, daß die Rohre (2) einen im wesentlichen viereckigen Querschnitt aufweisen. - Vorrichtung nach einem der Ansprüche 1 bis 11,
dadurch gekennzeichnet, daß die an die Rohre (2) angeschlossene Zufuhreinrichtung für eine Fluidkomponente als Vormischkammer (10) ausgebildet ist, die mittels einer Wand (13), die eine Vielzahl von Austrittsöffnungen (16) für Prallstrahlen aufweist, in einen ersten und einen zweiten Mischraum (11, 12) unterteilt ist, daß an den ersten Mischraum (11) eine Zufuhrleitung (14) für einen ersten Fluidstrom und an den zweiten Mischraum (12) eine Zufuhrleitung (15) für einen zweiten Fluidstrom angeschlossen ist und daß der zweite Raum (12) eine Auslaßöffnung (18) für das Fluidgemisch aufweist. - Vorrichtung nach Anspruch 12,
dadurch gekennzeichnet, daß die Austrittsöffnungen (16) als rohrförmigen Verlängerungen ausgebildet sind, die an ihrem Ende eine Prallplatte (17) aufweisen. - Vorrichtung nach Anspruch 12 oder 13,
dadurch gekennzeichnet, daß die Vormischkammer (10) und die Kammer (1) eine Baueinheit bilden und daß sich die Vormischkammer und deren Auslaßöffnung (18) im wesentlichen über die Länge der Kammer (1) erstrecken.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19860240A DE19860240A1 (de) | 1998-12-24 | 1998-12-24 | Vorrichtung zum Mischen zweier Fluidkomponenten |
DE19860240 | 1998-12-24 | ||
DE19947565 | 1999-10-02 | ||
DE19947565A DE19947565A1 (de) | 1999-10-02 | 1999-10-02 | Vorrichtung zum Mischen von fluidförmigem Brennstoff mit zwei Gasströmen |
PCT/EP1999/009883 WO2000038826A1 (de) | 1998-12-24 | 1999-12-14 | Vorrichtung zum mischen zweier fluidkomponenten |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1140340A1 EP1140340A1 (de) | 2001-10-10 |
EP1140340B1 true EP1140340B1 (de) | 2003-07-23 |
Family
ID=26051057
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99966961A Expired - Lifetime EP1140340B1 (de) | 1998-12-24 | 1999-12-14 | Vorrichtung zum mischen zweier fluidkomponenten |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1140340B1 (de) |
DE (1) | DE59906393D1 (de) |
WO (1) | WO2000038826A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011083407A1 (de) * | 2011-09-26 | 2013-03-28 | J. Eberspächer GmbH & Co. KG | Restgasbrenner |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE60023485T2 (de) | 1999-05-21 | 2006-07-20 | The Procter & Gamble Company, Cincinnati | Saugfähiger artikel mit einem körperpflegemittel |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB735519A (en) * | 1951-05-30 | 1955-08-24 | Bataafsche Petroleum | Apparatus for stabilising the flames of gas burners |
GB911421A (en) * | 1960-02-26 | 1962-11-28 | Shell Int Research | Method of mixing gases |
DE2301644C2 (de) * | 1973-01-13 | 1974-07-18 | Friedrich Uhde Gmbh, 4600 Dortmund | Vorrichtung zur Herstellung eines homogenen Gasgemisches |
US4865820A (en) * | 1987-08-14 | 1989-09-12 | Davy Mckee Corporation | Gas mixer and distributor for reactor |
DE4224911A1 (de) * | 1992-07-09 | 1994-01-13 | Tech Resources Pty Ltd | Durchlüfter |
JP3634519B2 (ja) * | 1996-09-13 | 2005-03-30 | 三洋電機株式会社 | 元混合式面状火炎型バーナ |
-
1999
- 1999-12-14 EP EP99966961A patent/EP1140340B1/de not_active Expired - Lifetime
- 1999-12-14 WO PCT/EP1999/009883 patent/WO2000038826A1/de active IP Right Grant
- 1999-12-14 DE DE59906393T patent/DE59906393D1/de not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011083407A1 (de) * | 2011-09-26 | 2013-03-28 | J. Eberspächer GmbH & Co. KG | Restgasbrenner |
US9028246B2 (en) | 2011-09-26 | 2015-05-12 | Eberspaecher Climate Control Systems Gmbh & Co. Kg | Residual gas burner |
DE102011083407B4 (de) * | 2011-09-26 | 2021-07-01 | Eberspächer Climate Control Systems GmbH & Co. KG | Restgasbrenner |
Also Published As
Publication number | Publication date |
---|---|
EP1140340A1 (de) | 2001-10-10 |
DE59906393D1 (de) | 2003-08-28 |
WO2000038826A1 (de) | 2000-07-06 |
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