EP1166861A1 - Mixer for mixing at least two gas streams or other Newtonian liquids - Google Patents

Mixer for mixing at least two gas streams or other Newtonian liquids Download PDF

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Publication number
EP1166861A1
EP1166861A1 EP00112875A EP00112875A EP1166861A1 EP 1166861 A1 EP1166861 A1 EP 1166861A1 EP 00112875 A EP00112875 A EP 00112875A EP 00112875 A EP00112875 A EP 00112875A EP 1166861 A1 EP1166861 A1 EP 1166861A1
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EP
European Patent Office
Prior art keywords
flow channel
installation surface
separate
mixer according
gas
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.)
Granted
Application number
EP00112875A
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German (de)
French (fr)
Other versions
EP1166861B1 (en
Inventor
Hans Prof. Dr.-Ing. Ruscheweyh
Michael Dipl.-Ing. Kaatz
Miroslav Dr.-Ing. Podhorsky
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.)
Balcke Duerr GmbH
Original Assignee
Balcke Duerr Energietechnik GmbH
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
Priority to AT00112875T priority Critical patent/ATE235311T1/en
Application filed by Balcke Duerr Energietechnik GmbH filed Critical Balcke Duerr Energietechnik GmbH
Priority to DE50001550T priority patent/DE50001550D1/en
Priority to ES00112875T priority patent/ES2192505T3/en
Priority to DK00112875T priority patent/DK1166861T3/en
Priority to EP00112875A priority patent/EP1166861B1/en
Priority to CA002350961A priority patent/CA2350961C/en
Priority to MXPA01006231A priority patent/MXPA01006231A/en
Priority to US09/884,356 priority patent/US6779786B2/en
Publication of EP1166861A1 publication Critical patent/EP1166861A1/en
Application granted granted Critical
Publication of EP1166861B1 publication Critical patent/EP1166861B1/en
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    • 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
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B01F25/4311—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor the baffles being adjustable
    • 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
    • B01F25/313—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
    • B01F25/3131—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit with additional mixing means other than injector mixers, e.g. screens, baffles or rotating elements
    • 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
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B01F25/4316—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor the baffles being flat pieces of material, e.g. intermeshing, fixed to the wall or fixed on a central rod

Definitions

  • the invention relates to a mixer for mixing at least two Gas flows or other Newtonian liquids, with one of the first Gas flow through the main flow channel with an arranged therein, the Installation area influencing flow, the installation area being a vortex-generating Disc with freely flowing front edges directed against the current is, the course of which is both in the main flow direction of the gas stream and also has a component running transversely thereto.
  • the invention has for its object a mixer for mixing at least two gas streams or other Newtonian liquids create that through a quick mixing with a short mixing distance also excels when a volume flow has a comparatively small proportion another component is to be added.
  • Possible applications are, for example, in Denox systems in flue gas cleaning technology or in the conditioning of dust in electrostatic filters.
  • cleaning the flue gas add NH 3 or NH 4 OH to the flue gas flowing to the reactor rooms, the proportion of the ammonia compound being only about 2% by mass.
  • the mixer according to the invention enables the two components to be mixed quickly with a short mixing section. The result of the mixing is that the profiles of the gas and / or liquid flow passed through are made more uniform, with a loss in performance being avoided.
  • the vortex installation surface has a relatively low flow resistance, since it does not act as a guiding surface with its entire surface, but rather creates vortex fields with its front edges, which expand automatically in the direction of flow without additional installations or guiding surfaces for this expansion would be required.
  • the mouth of the second Gas flow is located in the area of the front half of the disc. In this way becomes the second gas stream brought up via the separate flow channel captured by those early vertebral fields, those in the foremost edge area the disk are generated.
  • the disc has a chamber into which the flow channel for the second gas flow leads, the chamber facing away from the inflow of the first gas stream Back of the disc is provided with outlet openings.
  • the chamber, into which the flow channel for the second gas stream leads enables one distribution of the outlet openings adapted to the operating mode of the mixer for the second gas stream, i.e. the arrangement of these outlet openings can with great constructive freedom. For example, it is possible that To direct outlet openings against the main flow direction, or to attach special baffles, which the from the outlet openings escaping gas flow is particularly favorable in the area of the Steer leading edges of the disc from forming vertebrae.
  • the chamber is used to stiffen the installation surface can be.
  • the chamber have side walls is provided, which are arranged at an angle to the disc and the Stiffen the pane against bending loads and any vibrations.
  • the disc be supported on struts in the main flow channel one of which is tubular and has a separate flow channel forms.
  • the flow channel also takes on a static one Function in the arrangement of the vortex installation area within the main flow channel.
  • FIG. 1 shows a section through part of a flue gas denitrification plant with a main flow channel 1 in an arm rising upwards and a reactor 2 in a flow arm of the plant pointing downwards.
  • the reactor 2 is usually equipped with catalysts 3.
  • the flue gas NH 3 or NH 4 OH entering 4 in the main flow channel 1 must be added. This takes place via a separate flow channel 5, which is guided through the wall 6 of the main flow channel 1.
  • the ammonia compound in the flue gas is distributed very quickly and thus homogenized, so that the ammonia compound is completely evenly distributed in the flue gas stream when it subsequently flows into the reactor 2.
  • the media are mixed using at least one in the Main flow channel 1 arranged installation area 7.
  • the installation area 7 is a so-called "vortex installation area" for the production of Leading edge vortices.
  • the free flow, against the current in the Main flow channel 1 directed front edges 8 of e.g. a circular disk designed installation surface 7 have both in the main flow direction 9 and also a component running transversely to this.
  • each installation surface 7 at an acute angle ⁇ to the main flow direction 9 in the Flow channel 1 is arranged, arise on each front edge of the Installation area of vortex fields, which spread out in a circular cone downstream.
  • the individual vertebrae roll inwards onto the back 10 of the Installation area 7 from.
  • Each vortex field is formed by its Rotation a flow component transverse to the main flow direction 9 of the Gases through the associated exchange of momentum transversely to the direction of flow good mixing of the gas mixture results.
  • the separate flow channel 5, preferably designed as a tube, for the second Gas flow extends into the main flow channel 1 and opens there in the region of the rear side 10 facing away from the inflow of the first gas stream the installation surface 7.
  • the installation surface 7 is opposite one another via a plurality of struts 11 the wall 6a of the main flow channel 1 is supported so that the angle ⁇ with respect to the main flow direction 9 between 40 ° and 80 ° and preferably is approximately 60 °.
  • the separate flow channel 5 is in shape of a tube cantilevered from the wall 6 on the rear 10 of the Disk 7 led to this without touching the disk 7.
  • the exit opening 12 of the separate flow channel 5 is approximately in the direction of the main flow direction 9 directed.
  • Figure 1 shows that the outlet opening 12 of the second gas flow at the level of the front half of the disc or installation area 7.
  • FIG. 2 shows that there are multiple existing outlet openings 12 in the area of the front half of the installation area 7 are located.
  • the separate flow channel 5 is open the front of the installation surface 7 led to this. This takes over Pipe of the separate flow channel 5 also the static function of one of the Struts 11. These struts 11 are located on the front of the installation surface 7, so as not to influence the formation of the vertebrae on their back.
  • Angle of attack ⁇ of the disc 7 relative to the main flow direction 9 change, for example by changing the effective length of the struts 11. This change or setting can also be made while the mixer is operating respectively.
  • Figure 2 also shows that the separate flow channel 5 is not immediate merges into the outlet openings 12, rather that via the flow channel 5 supplied second gas stream first enters a chamber 13, which on the Rear of the installation surface 7 is arranged. In the outside of the chamber 13 the outlet openings 12 are then located.
  • FIGS. 3 and 4 show two possible configurations of the chambers 13, in the case of FIG. 3, the outlet openings 12 around the center line 14 the disc 7 are arranged around while in the embodiment according to FIG. 4, the outlet openings 12 on two groups on both sides of the center line 14 to distribute only in those areas that are from the left or be swept by the right front edge vertebrae.
  • the embodiment according to FIG. 5 differs from the embodiment 4 through two separate flow channels 5, via the two separate Gas flows in turn pass into two separate chambers 13a, 13b.
  • the separate chambers 13a, 13b can also lie one behind the other. This is shown in Fig. 5a.
  • Figures 7 and 8 show that the outlet openings 12 in the Area of the front end 16 of the chamber 13 can be located. To this This results in an outflow that is almost opposite the front edges 8 forming vortex fields, which makes it a very early Mixing comes.
  • FIG. 9 shows that the installation area also the shape a delta-shaped triangle with a direction opposite to the direction of flow Can have tip.
  • Figure 10 reveals an additional hood 16 with over its entire circumference distributed outlet openings 12 are used.
  • the hood 16 is on the placed on the back of the disc 7 arranged chamber 13, but can the chamber 13 itself can be designed hood-shaped.
  • FIGS. 2 to 10 show that the walls of the chamber 13, since this is arranged vertically, but at least at an angle to the installation surface 7 are, can increase the installation area 7 with respect to bending loads. Out For this reason, those that serve as distributors for the second gas stream follow Chambers 13 other chambers 17, but no distribution function or have a fluidic function, but exclusively the stiffening serve the installation area 7.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

A separate flow channel (5) for a second gas stream extends into a main channel (1) and discharges at the rear (10) of a baffle (7) situated in the main gas stream. Preferred Features: Discharge occurs near the front half of the baffle (7). The flow channel for the second stream leads into chambers within it. Their outlet openings are on the rear of the baffle. The chamber has sidewalls at an angle to the baffle surface (7), which strengthen the it against bending loads. The separate flow channel is led to the front or the rear side of the baffle, which is supported by stays in the main flow channel. One stay is tubular and forms a separate flow channel. The angle ( alpha ) of the baffle with respect to the main flow direction can be adjusted. Outlet openings of separate chambers are arranged in series.

Description

Die Erfindung betrifft einen Mischer für die Mischung mindestens zweier Gasströme oder anderer Newtonscher Flüssigkeiten, mit einem von dem ersten Gasstrom durchströmten Hauptströmungskanal mit einer darin angeordneten, die Strömung beeinflussenden Einbaufläche, wobei die Einbaufläche eine wirbelerzeugende Scheibe mit frei umströmten, gegen die Strömung gerichteten Vorderkanten ist, deren Verlauf sowohl eine in Hauptströmungsrichtung des Gasstroms als auch eine quer hierzu verlaufende Komponente aufweist.The invention relates to a mixer for mixing at least two Gas flows or other Newtonian liquids, with one of the first Gas flow through the main flow channel with an arranged therein, the Installation area influencing flow, the installation area being a vortex-generating Disc with freely flowing front edges directed against the current is, the course of which is both in the main flow direction of the gas stream and also has a component running transversely thereto.

Zum Mischen von Gas- oder Flüssigkeitsströmungen in Rohrleitungen oder in Kanälen benötigt man bei turbulenter Strömung Mischlängen vom 15 bis 100-fachen des Kanaldurchmessers. Mittels geeigneter statischer Mischer in Gestalt von Einbaukörpern läßt sich diese Mischstrecke deutlich verkürzen. Es muß jedoch bei den meisten herkömmlich angewendeten Systemen ein hoher Druckverlust insbesondere dann in Kauf genommen werden, wenn hohe Anforderungen an die Homogenität der sich einstellenden Mischung gestellt werden. Viele der herkömmlichen Mischsysteme sind außerdem auf einfache Geometrien beschränkt, z.B. auf zylindrische Rohre oder quadratische Kanäle und lassen sich nicht bei Großanlagen und komplizierten Mischkammersystemen anwenden.For mixing gas or liquid flows in pipes or in ducts mixed lengths of 15 to 100 times are required for turbulent flow of the channel diameter. Using suitable static mixers in the form of built-in bodies this mixing distance can be shortened significantly. However, it must most conventional systems have a high pressure drop in particular be accepted if high demands are placed on homogeneity the resulting mixture. Many of the conventional ones Mixing systems are also limited to simple geometries, e.g. on cylindrical pipes or square channels and cannot be used in large systems and use complicated mixing chamber systems.

Aus der DE 29 11 873 C2 ist zur Anwendung in einem Kühlturm ein statischer Mischer bekannt, bei dem die Einbauten aus schräg angeströmten, deltaförmigen oder kreisscheibenförmigen Blechen bestehen, an deren Vorderkanten Wirbel entstehen. Die so gebildeten stationären und stabilen Wirbelsysteme wirken in den Strömungsnachlauf hinein, die zu mischenden Komponenten werden schichtenförmig eingerollt, was zu einer schnellen Vermischung bei sehr geringen Druckverlusten führt. Diese so genannten "Wirbeleinbauflächen" haben sich wegen der erzielbaren kurzen Mischstrecken in der Praxis bewährt.DE 29 11 873 C2 describes a static mixer for use in a cooling tower known, in which the internals from diagonally flowed, delta-shaped or circular disk-shaped sheets, on the front edges of which vortices are formed. The stationary and stable vortex systems thus formed act in the Flow wake in, the components to be mixed become layered rolled up, resulting in quick mixing at very low Loss of pressure leads. These so-called "vortex installation areas" have been due to the achievable short mixing distances proven in practice.

Der Erfindung liegt die Aufgabe zugrunde, einen Mischer für die Vermischung mindestens zweier Gasströme oder anderer Newtonscher Flüssigkeiten zu schaffen, der sich durch eine schnelle Vermischung bei kurzer Mischstrecke auch dann auszeichnet, wenn einem Volumenstrom ein vergleichsweise geringer Anteil einer weiteren Komponente beizumengen ist.The invention has for its object a mixer for mixing at least two gas streams or other Newtonian liquids create that through a quick mixing with a short mixing distance also excels when a volume flow has a comparatively small proportion another component is to be added.

Zur Lösung dieser Aufgabe ist ein Mischer mit den eingangs genannten Merkmalen gekennzeichnet durch einen separaten Strömungskanal für den zweiten Gasstrom, der sich bis in den Hauptströmungskanal hinein erstreckt und dort im Bereich der der Zuströmung des ersten Gasstroms abgewandten Rückseite der Scheibe mündet.To solve this problem is a mixer with the above Characterized by a separate flow channel for the second gas stream, which extends into the main flow channel and there in the area of the rear side facing away from the inflow of the first gas stream the disc opens.

Die Vorteile eines solchen Mischers bestehen insbesondere in solchen Fällen, in denen einem großen Volumenstrom einer ersten Komponente ein relativ kleiner Volumenstrom einer zweiten Komponente beizumischen ist und gleichwohl anschließend auf kurzer Mischstrecke eine Homogenisierung erreicht werden muß.The advantages of such a mixer are particularly in such cases, in a large volume flow of a first component is a relatively small one Volume flow of a second component is to be mixed and nevertheless homogenization can then be achieved over a short mixing section got to.

Anwendungsmöglichkeiten ergeben sich zum Beispiel bei Denox-Anlagen in der Rauchgas-Reinigungstechnik oder bei der Konditionierung des Staubes bei Elektrofiltern. Bei der Rauchgas-Reinigung ist dem zu den Reaktorräumen strömenden Rauchgas NH3 oder NH4 OH beizumischen, wobei der Anteil der Amoniak-Verbindung lediglich circa 2 Massen-% beträgt. In diesem Fall läßt sich mit dem erfindungsgemäßen Mischer eine schnelle Vermischung der beiden Komponenten bei kurzer Mischstrecke erzielen. Die Durchmischung hat zur Folge, daß die Profile des hindurchgeführten Gas- und/oder Flüssigkeitsstromes vergleichmäßigt werden, wobei Leistungseinbußen vermieden werden. Trotz der Bildung ausgedehnter und stabiler Wirbel hat die Wirbeleinbaufläche einen verhältnismäßig geringen Strömungswiderstand, da sie nicht mit ihrer gesamten Oberfläche als Leitfläche wirkt, sondern mit ihren vorderen Kanten Wirbelfelder erzeugt, die sich in Strömungsrichtung selbsttätig erweitern, ohne daß für diese Erweiterung zusätzliche Einbauten oder Leitflächen erforderlich wären.Possible applications are, for example, in Denox systems in flue gas cleaning technology or in the conditioning of dust in electrostatic filters. When cleaning the flue gas, add NH 3 or NH 4 OH to the flue gas flowing to the reactor rooms, the proportion of the ammonia compound being only about 2% by mass. In this case, the mixer according to the invention enables the two components to be mixed quickly with a short mixing section. The result of the mixing is that the profiles of the gas and / or liquid flow passed through are made more uniform, with a loss in performance being avoided. Despite the formation of extensive and stable vortices, the vortex installation surface has a relatively low flow resistance, since it does not act as a guiding surface with its entire surface, but rather creates vortex fields with its front edges, which expand automatically in the direction of flow without additional installations or guiding surfaces for this expansion would be required.

Zur Homogenisierung auf kürzester Mischstrecke trägt ferner bei, wenn sich gemäß einer bevorzugten Ausgestaltung der Erfindung die Mündung des zweiten Gasstroms im Bereich der vorderen Hälfte der Scheibe befindet. Auf diese Weise wird der zweite, über den separaten Strömungskanal herangeführte Gasstrom bereits von jenen früh einsetzenden Wirbelfeldern erfaßt, die im vordersten Kantenbereich der Scheibe generiert werden.Also contributes to homogenization over the shortest mixing distance if according to a preferred embodiment of the invention, the mouth of the second Gas flow is located in the area of the front half of the disc. In this way becomes the second gas stream brought up via the separate flow channel captured by those early vertebral fields, those in the foremost edge area the disk are generated.

In weiterer Ausgestaltung des erfindungsgemäßen Mischers weist die Scheibe eine Kammer auf, in die hinein der Strömungskanal für den zweiten Gasstrom führt, wobei die Kammer auf der der Zuströmung des ersten Gasstroms abgewandten Rückseite der Scheibe mit Austrittsöffnungen versehen ist. Die Kammer, in die hinein der Strömungskanal für den zweiten Gasstrom führt, ermöglicht eine an die Betriebsweise des Mischers angepaßte Verteilung der Austrittsöffnungen für den zweiten Gasstrom, d.h. die Anordnung dieser Austrittsöffnungen kann mit großer konstruktiver Freiheit erfolgen. So ist es zum Beispiel möglich, die Austrittsöffnungen entgegen der Hauptströmungsrichtung zu richten, oder spezielle Umlenkbleche anzubringen, welche den aus den Austrittsöffnungen austretenden Gasstrom besonders günstig in den Bereich der sich von den Vorderkanten der Scheibe aus bildenden Wirbel lenken.In a further embodiment of the mixer according to the invention, the disc has a chamber into which the flow channel for the second gas flow leads, the chamber facing away from the inflow of the first gas stream Back of the disc is provided with outlet openings. The chamber, into which the flow channel for the second gas stream leads enables one distribution of the outlet openings adapted to the operating mode of the mixer for the second gas stream, i.e. the arrangement of these outlet openings can with great constructive freedom. For example, it is possible that To direct outlet openings against the main flow direction, or to attach special baffles, which the from the outlet openings escaping gas flow is particularly favorable in the area of the Steer leading edges of the disc from forming vertebrae.

Von Vorteil ist ferner, daß die Kammer zur Versteifung der Einbaufläche herangezogen werden kann. Hierzu wird vorgeschlagen, daß die Kammer mit Seitenwänden versehen ist, welche im Winkel zu der Scheibe angeordnet sind und die Scheibe gegenüber Biegebelastungen und etwaigen Schwingungen versteifen.It is also advantageous that the chamber is used to stiffen the installation surface can be. To this end, it is proposed that the chamber have side walls is provided, which are arranged at an angle to the disc and the Stiffen the pane against bending loads and any vibrations.

In Bezug auf die Anordnung des Strömungskanals für den zweiten Gasstrom innerhalb des Hauptströmungskanals wird mit einer ersten Ausführungsform vorgeschlagen, daß der separate Strömungskanal auf der Vorderseite der Scheibe zu dieser hingeführt ist. Auf diese Weise beeinflußt das Bauvolumen des separaten Strömungskanals nicht die Wirbelbildung und -fortpflanzung an der Rückseite der Scheibe. With regard to the arrangement of the flow channel for the second gas flow inside the main flow channel is proposed with a first embodiment, that the separate flow channel on the front of the disc too this is led. In this way, the volume of the separate affects Flow channel not the vortex formation and propagation at the back of the Disc.

In anderen Fällen kann es auch von Vorteil sein, wenn das durch den separaten Strömungskanal bedingte Bauvolumen nicht die gleichmäßige vorderseitige Anströmung der Wirbeleinbaufläche stört. Mit einer zweiten Ausführungsform wird daher vorgeschlagen, daß der separate Strömungskanal auf der Rückseite der Scheibe zu dieser hingeführt ist.In other cases it can also be an advantage if this is done by the separate Flow channel-related construction volume is not the uniform front Inflow to the vortex installation surface is disruptive. With a second embodiment therefore suggested that the separate flow channel on the back of the Disk is led to this.

Schließlich wird im Sinne einer baulichen Vereinigung und damit Vereinfachung vorgeschlagen, daß die Scheibe über Streben in dem Hauptströmungskanal abgestützt ist, von denen eine rohrförmig gestaltet ist und den separaten Strömungskanal bildet. In diesem Fall übernimmt der Strömungskanal zusätzlich eine statische Funktion bei der Anordnung der Wirbeleinbaufläche innerhalb des Hauptströmungskanals.Finally, in the sense of a structural union and thus simplification suggested that the disc be supported on struts in the main flow channel one of which is tubular and has a separate flow channel forms. In this case, the flow channel also takes on a static one Function in the arrangement of the vortex installation area within the main flow channel.

Auf der Zeichnung ist ein Ausführungsbeispiel eines erfindungsgemäßen Mischers dargestellt, und zwar zeigen:

Figur 1
einen Schnitt durch eine Denox-Anlage einer Rauchgas-Reinigungsanlage mit einer in dem Hauptströmungskanal vor dem Reaktor angeordneten Wirbeleinbaufläche in Gestalt einer Scheibe;
Figur 2
in Schnittdarstellung eine alternative Ausführungsform der Scheibe in dem Hauptströmungskanal;
Figur 3
eine Draufsicht auf die Rückseite der Scheibe nach Figur 2;
Figur 4
eine Draufsicht auf die Rückseite einer Scheibe bei einer gegenüber Figur 3 abgewandelten Ausführungsform;
Figur 5
eine Draufsicht auf die Rückseite einer Scheibe bei einer gegenüber den Figuren 3 und 4 nochmals abgewandelten Ausführungsform;
Figur 5a
eine Draufsicht bei einer weiteren Ausführungsform;
Figur 6
in Schnittdarstellung eine weitere Ausführungsform einer Wirbeleinbaufläche in Gestalt einer Scheibe;
Figur 7
in Schnittdarstellung einschließlich des Hauptströmungskanals eine weitere Ausführungsform einer Wirbeleinbaufläche in Gestalt einer Scheibe;
Figur 8
eine Draufsicht auf die Rückseite der Scheibe nach Figur 7;
Figur 9
eine Draufsicht auf die Rückseite einer Wirbeleinbaufläche in Form einer deltaförmig gestalteten Scheibe und
Figur 10
in Schnittdarstellung eine weitere Ausführungsform einer scheibenförmigen Wirbeleinbaufläche.
An exemplary embodiment of a mixer according to the invention is shown in the drawing, namely:
Figure 1
a section through a Denox system of a flue gas cleaning system with a vortex installation surface in the form of a disk arranged in the main flow channel in front of the reactor;
Figure 2
in section an alternative embodiment of the disc in the main flow channel;
Figure 3
a plan view of the back of the disc of Figure 2;
Figure 4
a plan view of the back of a disc in a modified embodiment compared to Figure 3;
Figure 5
a plan view of the back of a disc in an embodiment modified again compared to Figures 3 and 4;
Figure 5a
a plan view in a further embodiment;
Figure 6
in sectional view a further embodiment of a vortex installation surface in the form of a disc;
Figure 7
in a sectional view including the main flow channel, a further embodiment of a vortex installation surface in the form of a disk;
Figure 8
a plan view of the back of the disc of Figure 7;
Figure 9
a plan view of the back of a vortex installation surface in the form of a delta-shaped disc and
Figure 10
in a sectional view a further embodiment of a disk-shaped peg installation surface.

Figur 1 zeigt einen Schnitt durch einen Teil einer Rauchgas-Entstickungsanlage mit einem Hauptströmungskanal 1 in einem nach oben aufsteigenden Arm und einem Reaktor 2 in einem nach unten weisenden Strömungsarm der Anlage. Der Reaktor 2 ist üblicherweise mit Katalysatoren 3 bestückt. Zum Betrieb der Anlage ist dem bei 4 in den Hauptströmungskanal 1 gelangenden Rauchgas NH3 oder NH4 OH beizumengen. Dies erfolgt über einen separaten Strömungskanal 5, der durch die Wand 6 des Hauptströmungskanals 1 hindurch geführt ist. Anschließend kommt es auf nachfolgend noch näher beschriebene Weise zu einem sehr schnellen Verteilen und damit Homogenisieren der Amoniak-Verbindung in dem Rauchgas, so daß bei dem anschließenden Einströmen in den Reaktor 2 die Amoniak-Verbindung völlig gleichmäßig in dem Rauchgasstrom verteilt ist.FIG. 1 shows a section through part of a flue gas denitrification plant with a main flow channel 1 in an arm rising upwards and a reactor 2 in a flow arm of the plant pointing downwards. The reactor 2 is usually equipped with catalysts 3. To operate the system, the flue gas NH 3 or NH 4 OH entering 4 in the main flow channel 1 must be added. This takes place via a separate flow channel 5, which is guided through the wall 6 of the main flow channel 1. Subsequently, in a manner described in more detail below, the ammonia compound in the flue gas is distributed very quickly and thus homogenized, so that the ammonia compound is completely evenly distributed in the flue gas stream when it subsequently flows into the reactor 2.

Die Mischung der Medien erfolgt unter Verwendung mindestens einer in dem Hauptströmungskanal 1 angeordneten Einbaufläche 7. Bei der Einbaufläche 7 handelt es sich um eine so genannte "Wirbeleinbaufläche" zur Erzeugung von Vorderkantenwirbeln. Die frei umströmten, gegen die Strömung in dem Hauptströmungskanal 1 gerichteten Vorderkanten 8 der z.B. kreisscheibenförmig gestalteten Einbaufläche 7 weisen sowohl eine in Hauptströmungsrichtung 9, als auch eine quer hierzu verlaufende Komponente auf. Da ferner jede Einbaufläche 7 unter einem spitzen Winkel α zu der Hauptströmungsrichtung 9 in dem Strömungskanal 1 angeordnet ist, entstehen an jeder Vorderkante der Einbaufläche Wirbelfelder, welche sich stromabwärts kreiskegelförmig ausbreiten. Dabei wälzen sich die einzelnen Wirbel nach innen auf die Rückseite 10 der Einbaufläche 7 ab. Die an den einzelnen Vorderkanten 4 gebildeten Wirbel, von denen ein Wirbel in Figur 1 vereinfacht dargestellt ist, verhalten sich weitgehend stationär, verändern daher ihre Lage nicht. Jedes Wirbelfeld bildet durch seine Rotation eine Strömungskomponente quer zur Hauptströmungsrichtung 9 des Gases, die durch den damit verbundenen Impulsaustausch quer zur Strömungsrichtung eine gute Vermischung des Gasgemisches zur Folge hat.The media are mixed using at least one in the Main flow channel 1 arranged installation area 7. In the installation area 7 is a so-called "vortex installation area" for the production of Leading edge vortices. The free flow, against the current in the Main flow channel 1 directed front edges 8 of e.g. a circular disk designed installation surface 7 have both in the main flow direction 9 and also a component running transversely to this. Furthermore, since each installation surface 7 at an acute angle α to the main flow direction 9 in the Flow channel 1 is arranged, arise on each front edge of the Installation area of vortex fields, which spread out in a circular cone downstream. The individual vertebrae roll inwards onto the back 10 of the Installation area 7 from. The vertebrae formed on the individual leading edges 4, of which a vortex is shown in simplified form in FIG. 1 behave largely stationary, therefore do not change their position. Each vortex field is formed by its Rotation a flow component transverse to the main flow direction 9 of the Gases through the associated exchange of momentum transversely to the direction of flow good mixing of the gas mixture results.

Die genannten wirbelerzeugenden Eigenschaften der Einbaufläche 7 werden in Verbindung mit allen so genannten "Newtonschen Flüssigkeiten" erreicht, d.h. bei Gasen sowie bei solchen Fluiden, die sich in ihren strömungstechnischen Eigenschaften vergleichbar den Gasen verhalten.The aforementioned vortex-producing properties of the installation surface 7 are shown in Connection with all so-called "Newtonian liquids" achieved, i.e. at Gases as well as such fluids, which differ in their fluidic properties behave comparable to the gases.

Der vorzugsweise als Rohr gestaltete separate Strömungskanal 5 für den zweiten Gasstrom erstreckt sich bis in den Hauptströmungskanal 1 hinein und mündet dort im Bereich der der Zuströmung des ersten Gasstroms abgewandten Rückseite 10 der Einbaufläche 7. Über mehrere Streben 11 ist die Einbaufläche 7 gegenüber der Wand 6a des Hauptströmungskanals 1 so abgestützt, daß der Winkel α gegenüber der Hauptströmungsrichtung 9 zwischen 40° und 80° und vorzugsweise ca. 60° beträgt.The separate flow channel 5, preferably designed as a tube, for the second Gas flow extends into the main flow channel 1 and opens there in the region of the rear side 10 facing away from the inflow of the first gas stream the installation surface 7. The installation surface 7 is opposite one another via a plurality of struts 11 the wall 6a of the main flow channel 1 is supported so that the angle α with respect to the main flow direction 9 between 40 ° and 80 ° and preferably is approximately 60 °.

Bei der Ausführungsform nach Figur 1 ist der separate Strömungskanal 5 in Gestalt eines frei von der Wand 6 auskragenden Rohres auf der Rückseite 10 der Scheibe 7 zu dieser hingeführt, ohne die Scheibe 7 zu berühren. Die Austrittsöffnung 12 des separaten Strömungskanals 5 ist in etwa in Richtung der Hauptströmungsrichtung 9 gerichtet. Desweiteren läßt Figur 1 erkennen, daß sich die Austrittsöffnung 12 des zweiten Gasstroms auf Höhe der vorderen Hälfte der Scheibe bzw. Einbaufläche 7 befindet.In the embodiment of Figure 1, the separate flow channel 5 is in shape of a tube cantilevered from the wall 6 on the rear 10 of the Disk 7 led to this without touching the disk 7. The exit opening 12 of the separate flow channel 5 is approximately in the direction of the main flow direction 9 directed. Furthermore, Figure 1 shows that the outlet opening 12 of the second gas flow at the level of the front half of the disc or installation area 7.

Auch die Ausführungsform nach Figur 2 läßt erkennen, daß sich die dort mehrfach vorhandenen Austrittsöffnungen 12 im Bereich der vorderen Hälfte der Einbaufläche 7 befinden. Bei dieser Ausführungsform ist der separate Strömungskanal 5 auf der Vorderseite der Einbaufläche 7 zu dieser hingeführt. Hierbei übernimmt das Rohr des separaten Strömungskanals 5 zugleich die statische Funktion einer der Streben 11. Diese Streben 11 befinden sich auf der Vorderseite der Einbaufläche 7, um das Entstehen der Wirbel auf deren Rückseite nicht zu beeinflussen.The embodiment of Figure 2 shows that there are multiple existing outlet openings 12 in the area of the front half of the installation area 7 are located. In this embodiment, the separate flow channel 5 is open the front of the installation surface 7 led to this. This takes over Pipe of the separate flow channel 5 also the static function of one of the Struts 11. These struts 11 are located on the front of the installation surface 7, so as not to influence the formation of the vertebrae on their back.

Es ist möglich, zwecks Anpassung an die jeweiligen Betriebsbedingungen den Anstellwinkel α der Scheibe 7 gegenüber der Hauptströmungsrichtung 9 zu verändern, beispielsweise durch Veränderung der wirksamen Länge der Streben 11. Diese Änderung bzw. Einstellung kann auch während des Betriebes des Mischers erfolgen.It is possible to adapt to the respective operating conditions Angle of attack α of the disc 7 relative to the main flow direction 9 change, for example by changing the effective length of the struts 11. This change or setting can also be made while the mixer is operating respectively.

Figur 2 läßt ferner erkennen, daß der separate Strömungskanal 5 nicht unmittelbar in die Austrittsöffnungen 12 übergeht, vielmehr der über den Strömungskanal 5 zugeführte zweite Gasstrom zunächst in eine Kammer 13 gelangt, die auf der Rückseite der Einbaufläche 7 angeordnet ist. In der Außenseite der Kammer 13 befinden sich dann die Austrittsöffnungen 12.Figure 2 also shows that the separate flow channel 5 is not immediate merges into the outlet openings 12, rather that via the flow channel 5 supplied second gas stream first enters a chamber 13, which on the Rear of the installation surface 7 is arranged. In the outside of the chamber 13 the outlet openings 12 are then located.

In den Figuren 3 und 4 sind zwei mögliche Ausgestaltungen der Kammern 13 dargestellt, wobei im Fall der Figur 3 die Austrittsöffnungen 12 um die Mittellinie 14 der Scheibe 7 herum angeordnet sind, während sich bei der Ausführungsform nach Figur 4 die Austrittsöffnungen 12 auf zwei Gruppen beiderseits der Mittellinie 14 verteilen, um so nur in jene Bereiche auszuströmen, die von den linken bzw. von den rechten Vorderkantenwirbeln überstrichen werden.FIGS. 3 and 4 show two possible configurations of the chambers 13, in the case of FIG. 3, the outlet openings 12 around the center line 14 the disc 7 are arranged around while in the embodiment according to FIG. 4, the outlet openings 12 on two groups on both sides of the center line 14 to distribute only in those areas that are from the left or be swept by the right front edge vertebrae.

Die Ausführungsform nach Figur 5 unterscheidet sich von der Ausführungsform nach Figur 4 durch zwei getrennte Strömungskanäle 5, über die zwei getrennte Gasströme in wiederum zwei getrennte Kammern 13a, 13b gelangen. Auf diese Weise ist es zum Beispiel möglich, zwei unterschiedliche Gasströme den im Hauptströmungskanal geführten Gasstrom zuzumischen. Die getrennten Kammern 13a, 13b können auch hintereinander liegen. Dies ist in Fig. 5a eingezeichnet.The embodiment according to FIG. 5 differs from the embodiment 4 through two separate flow channels 5, via the two separate Gas flows in turn pass into two separate chambers 13a, 13b. To this For example, it is possible to use two different gas flows in the Main gas flow to mix the main flow channel. The separate chambers 13a, 13b can also lie one behind the other. This is shown in Fig. 5a.

In Figur 6 ist dargestellt, daß die Austrittsöffnung 12 der Kammer mit einem Umlenkblech 15 versehen werden kann, um so eine möglichst günstige Zuströmung des zweiten Gasstroms in den Bereich der gebildeten Vorderkantenwirbel zu erzielen. In Figure 6 it is shown that the outlet opening 12 of the chamber with a Deflection plate 15 can be provided, so as a favorable inflow of the second gas flow in the region of the leading edge vortex formed achieve.

Die Figuren 7 und 8 lassen erkennen, daß sich die Austrittsöffnungen 12 auch im Bereich der vorderen Stirnseite 16 der Kammer 13 befinden können. Auf diese Weise ergibt sich eine Ausströmung, die nahezu entgegengerichtet den sich an den Vorderkanten 8 bildenden Wirbelfeldern ist, wodurch es zu einer sehr frühen Vermischung kommt.Figures 7 and 8 show that the outlet openings 12 in the Area of the front end 16 of the chamber 13 can be located. To this This results in an outflow that is almost opposite the front edges 8 forming vortex fields, which makes it a very early Mixing comes.

Im Rahmen der voranstehend beschriebenen Ausführungsbeispiele der Erfindung waren die Einbauflächen 7 im wesentlichen kreisförmig oder auch elliptisch gestaltet. Die Figuren 9 und 10 lassen erkennen, daß die Einbaufläche auch die Gestalt eines deltaförmigen Dreiecks mit entgegen der Strömungsrichtung gerichteter Spitze aufweisen kann. Für den Austritt des zweiten Gasstroms kann ferner, wie Figur 10 erkennen läßt, eine zusätzliche Haube 16 mit über deren ganzen Umfang verteilten Austrittsöffnungen 12 verwendet werden. Die Haube 16 ist auf die auf der Rückseite der Scheibe 7 angeordnete Kammer 13 aufgesetzt, jedoch kann auch die Kammer 13 selbst haubenförmig gestaltet sein.Within the scope of the exemplary embodiments of the invention described above were the installation surfaces 7 essentially circular or elliptical. Figures 9 and 10 show that the installation area also the shape a delta-shaped triangle with a direction opposite to the direction of flow Can have tip. For the exit of the second gas stream, how Figure 10 reveals an additional hood 16 with over its entire circumference distributed outlet openings 12 are used. The hood 16 is on the placed on the back of the disc 7 arranged chamber 13, but can the chamber 13 itself can be designed hood-shaped.

Die Figuren 2 bis 10 lassen schließlich erkennen, daß die Wände der Kammer 13, da diese senkrecht, zumindest jedoch im Winkel zu der Einbaufläche 7 angeordnet sind, die Einbaufläche 7 in Bezug auf Biegebelastungen verstärken können. Aus diesem Grunde schließen sich an die als Verteiler für den zweiten Gasstrom dienenden Kammern 13 weitere Kammern 17 an, die jedoch keine Verteilerfunktion oder strömungstechnische Funktion haben, sondern ausschließlich der Versteifung der Einbaufläche 7 dienen. Finally, FIGS. 2 to 10 show that the walls of the chamber 13, since this is arranged vertically, but at least at an angle to the installation surface 7 are, can increase the installation area 7 with respect to bending loads. Out For this reason, those that serve as distributors for the second gas stream follow Chambers 13 other chambers 17, but no distribution function or have a fluidic function, but exclusively the stiffening serve the installation area 7.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
HauptströmungskanalMain flow channel
22
Reaktorreactor
33
Katalysatorencatalysts
44
Eintrittentry
55
separater Stömungskanalseparate flow channel
66
Wandwall
6a6a
Wandwall
77
Einbaufläche, ScheibeInstallation area, washer
88th
Vorderkanteleading edge
99
HauptströmungsrichtungMain flow direction
1010
Rückseiteback
1111
Strebestrut
1212
Austrittsöffnungoutlet opening
1313
Kammerchamber
13a13a
Kammerchamber
13b13b
Kammerchamber
1414
Mittelliniecenter line
1515
UmlenkblechBaffle plate
1616
HaubeHood
1717
Kammerchamber
αα
Winkelangle

Claims (9)

Mischer für die Mischung mindestens zweier Gasströme oder anderer Newtonscher Flüssigkeiten, mit einem von dem ersten Gasstrom durchströmten Hauptströmungskanal (1) mit einer darin angeordneten, die Strömung beeinflussenden Einbaufläche (7), wobei die Einbaufläche (7) eine wirbelerzeugende Scheibe mit frei umströmten, gegen die Strömung gerichteten Vorderkanten (8) ist, deren Verlauf sowohl eine in Hauptströmungsrichtung (9) des Gasstroms als auch eine quer hierzu verlaufende Komponente aufweist,
gekennzeichnet durch einen separaten Strömungskanal (5) für den zweiten Gasstrom, der sich bis in den Hauptströmungskanal (1) hinein erstreckt und dort im Bereich der der Zuströmung des ersten Gasstroms abgewandten Rückseite (10) der Scheibe mündet.Mixer for the mixing of at least two gas flows or other Newtonian liquids, with a main flow channel (1) through which the first gas flow flows and with an installation surface (7) arranged therein that influences the flow, the installation surface (7) flowing freely against a vortex-generating disk the flow is directed front edges (8), the course of which has both a main flow direction (9) of the gas flow and a component running transversely thereto,
characterized by a separate flow channel (5) for the second gas stream, which extends into the main flow channel (1) and opens there in the region of the rear side (10) of the disk facing away from the inflow of the first gas stream. Mischer nach Anspruch 1, dadurch gekennzeichnet, daß sich die Mündung des zweiten Gasstroms im Bereich der vorderen Hälfte der Einbaufläche (7) befindet.Mixer according to claim 1, characterized in that the mouth of the second gas flow is in the region of the front half of the installation surface (7). Mischer nach Anspruch 1 oder Anspruch 2, dadurch gekennzeichnet, daß die Einbaufläche (7) eine Kammer (13, 13a, 13b) aufweist, in die hinein der Strömungskanal (5) für den zweiten Gasstrom führt, und daß die Kammer (13, 13a, 13b), auf der der Zuströmung des ersten Gasstroms abgewandten Rückseite (10) der Einbaufläche (7) mit Austrittsöffnungen (12) versehen ist.Mixer according to Claim 1 or Claim 2, characterized in that the installation surface (7) has a chamber (13, 13a, 13b) into which the flow channel (5) for the second gas flow leads, and in that the chamber (13, 13a , 13b), on the back (10) of the installation surface (7) facing away from the inflow of the first gas stream is provided with outlet openings (12). Mischer nach Anspruch 3, dadurch gekennzeichnet, daß die Kammer (13, 13a, 13b), mit Seitenwänden versehen ist, welche im Winkel zu der Einbaufläche (7) angeordnet sind und die Einbaufläche (7) gegenüber Biegebelastungen versteifen.Mixer according to claim 3, characterized in that the chamber (13, 13a, 13b) is provided with side walls which are arranged at an angle to the installation surface (7) and stiffen the installation surface (7) against bending loads. Mischer nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der separate Strömungskanal (5) auf der Vorderseite der Einbaufläche (7) zu dieser hingeführt ist.Mixer according to one of claims 1 to 4, characterized in that the separate flow channel (5) is guided to the front of the installation surface (7). Mischer nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der separate Strömungskanal (5) auf der Rückseite (10) der Einbaufläche (7) zu dieser hingeführt ist. Mixer according to one of claims 1 to 5, characterized in that the separate flow channel (5) on the rear side (10) of the installation surface (7) is led to the latter. Mischer nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Einbaufläche (7) über Streben (11) in dem Hauptströmungskanal (1) abgestützt ist, von denen eine rohrförmig gestaltet ist und den separaten Strömungskanal (5) bildet.Mixer according to one of claims 1 to 6, characterized in that the installation surface (7) is supported by struts (11) in the main flow channel (1), one of which is tubular and forms the separate flow channel (5). Mischer nach einem der vorangehenden Ansprüche, gekennzeichnet durch eine Einrichtung zur Verstellung des Anstellwinkels (α) der Einbaufläche (7) in Bezug auf die Hauptströmungsrichtung (9).Mixer according to one of the preceding claims, characterized by a device for adjusting the angle of attack (α) of the installation surface (7) with respect to the main flow direction (9). Mischer nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Ausströmöffnungen (12) getrennter Kammern (13a, 13b) hintereinander angeordnet sind.Mixer according to one of the preceding claims, characterized in that the outflow openings (12) of separate chambers (13a, 13b) are arranged one behind the other.
EP00112875A 2000-06-19 2000-06-19 Mixer for mixing at least two gas streams or other Newtonian liquids Expired - Lifetime EP1166861B1 (en)

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DE50001550T DE50001550D1 (en) 2000-06-19 2000-06-19 Mixer for mixing at least two gas flows or other Newtonian liquids
ES00112875T ES2192505T3 (en) 2000-06-19 2000-06-19 MIXER TO MIX AT LEAST TWO CURRENTS OF GAS OR OTHER NEWTONIAN FLUIDS.
DK00112875T DK1166861T3 (en) 2000-06-19 2000-06-19 Mixer for mixing at least two gas streams or other Newtonian liquids
EP00112875A EP1166861B1 (en) 2000-06-19 2000-06-19 Mixer for mixing at least two gas streams or other Newtonian liquids
AT00112875T ATE235311T1 (en) 2000-06-19 2000-06-19 MIXER FOR MIXING AT LEAST TWO GAS STREAMS OR OTHER NEWTONIAN LIQUIDS
CA002350961A CA2350961C (en) 2000-06-19 2001-06-18 Mixer for mixing at least two flows of gas or other newtonian liquids
MXPA01006231A MXPA01006231A (en) 2000-06-19 2001-06-18 Mixer for mixing at least two flows of gas or other newtonian liquids.
US09/884,356 US6779786B2 (en) 2000-06-19 2001-06-19 Mixer for mixing at least two flows of gas or other newtonian liquids

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EP0526393A1 (en) * 1991-07-30 1993-02-03 Sulzer Chemtech AG mixing-in device
US5547540A (en) * 1993-08-03 1996-08-20 Bdag Balcke-Durr Aktiengesellschaft Device for cooling gases and optionally drying solid particles added to the gas
EP0956897A2 (en) * 1998-05-11 1999-11-17 Deutsche Babcock Anlagen Gmbh Apparatus for mixing a gas flowing through a conduit

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1568410A1 (en) * 2004-02-27 2005-08-31 Haldor Topsoe A/S Apparatus for mixing of fluid streams
US7448794B2 (en) 2004-02-27 2008-11-11 Haldor Topsoe A/S Method for mixing fluid streams
US7547134B2 (en) 2004-02-27 2009-06-16 Haldor Topsoe A/S Arrangement for mixing of fluid streams
KR101140594B1 (en) * 2004-02-27 2012-05-02 할도르 토프쉐 에이/에스 Arrangement for mixing of fluid streams
EP1962995B2 (en) † 2005-12-15 2017-09-06 FISIA Babcock Environment GmbH Apparatus for mixing a fluid with a large gas stream, especially for introducing a reducing agent into a flue gas comprising nitrogen oxides
WO2007085471A1 (en) * 2006-01-28 2007-08-02 Fisia Babcock Environment Gmbh Method and device for mixing a gaseous fluid with a large gas flow, especially to introduce a reducing agent into a flue gas containing nitrogen oxides
WO2007085472A1 (en) * 2006-01-28 2007-08-02 Fisia Babcock Environment Gmbh Process and device for mixing a gaseous fluid with a large flow-rate gas stream, in particular for introducing a reducing agent into flue gas containing nitrogen oxides
CN101394919B (en) * 2006-01-28 2011-12-28 菲希亚巴高克环境股份有限公司 Method and device for mixing a gaseous fluid with a large gas flow, especially to introduce a reducing agent into a flue gas containing nitrogen oxides
US8517599B2 (en) 2006-01-28 2013-08-27 Fisia Babcock Environment Gmbh Method and apparatus for mixing a gaseous fluid with a large gas stream, especially for introducing a reducing agent into a flue gas that contains nitrogen oxides
WO2019012179A1 (en) * 2017-07-11 2019-01-17 Outotec (Finland) Oy Sparger apparatus and method for extracting particles
EA039537B1 (en) * 2017-07-11 2022-02-08 Оутотек (Финлэнд) Ой Sparger apparatus and method for extracting particles
DE102018005192B3 (en) 2018-07-02 2019-12-05 Truma Gerätetechnik GmbH & Co. KG burner device

Also Published As

Publication number Publication date
US6779786B2 (en) 2004-08-24
DE50001550D1 (en) 2003-04-30
US20020017731A1 (en) 2002-02-14
DK1166861T3 (en) 2003-07-21
CA2350961C (en) 2005-08-16
EP1166861B1 (en) 2003-03-26
ATE235311T1 (en) 2003-04-15
MXPA01006231A (en) 2003-05-19
ES2192505T3 (en) 2003-10-16
CA2350961A1 (en) 2001-12-19

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