EP1166861B1 - Mélangeur pour mélanger au moins deux courants de gaz ou d'autres liquides newtoniens - Google Patents

Mélangeur pour mélanger au moins deux courants de gaz ou d'autres liquides newtoniens Download PDF

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Publication number
EP1166861B1
EP1166861B1 EP00112875A EP00112875A EP1166861B1 EP 1166861 B1 EP1166861 B1 EP 1166861B1 EP 00112875 A EP00112875 A EP 00112875A EP 00112875 A EP00112875 A EP 00112875A EP 1166861 B1 EP1166861 B1 EP 1166861B1
Authority
EP
European Patent Office
Prior art keywords
built
gas stream
flow channel
main flow
chamber
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
Application number
EP00112875A
Other languages
German (de)
English (en)
Other versions
EP1166861A1 (fr
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/de
Application filed by Balcke Duerr Energietechnik GmbH filed Critical Balcke Duerr Energietechnik GmbH
Priority to EP00112875A priority patent/EP1166861B1/fr
Priority to DK00112875T priority patent/DK1166861T3/da
Priority to DE50001550T priority patent/DE50001550D1/de
Priority to ES00112875T priority patent/ES2192505T3/es
Priority to MXPA01006231A priority patent/MXPA01006231A/es
Priority to CA002350961A priority patent/CA2350961C/fr
Priority to US09/884,356 priority patent/US6779786B2/en
Publication of EP1166861A1 publication Critical patent/EP1166861A1/fr
Application granted granted Critical
Publication of EP1166861B1 publication Critical patent/EP1166861B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B01F25/40—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 the mixture of at least two Gas streams or other Newtonian fluids, with one of the first Gas stream flowed through the main flow channel with a arranged therein, the Flow influencing mounting surface, the mounting surface is a vortex-generating Disc with free-flowing, directed against the flow leading edges whose course is both one in the main flow direction of the gas flow as well as a transverse thereto extending component.
  • Generic mixers are known, for example, from EP-A-0 956 897, EP-A-0 526 393 and DE 37 23 618 C previously known. All this mix is common, in that they have a mounting surface arranged in the main flow channel, wherein it is further known from EP-A-0 956 897 to mix in the second gas flow with respect to the flow direction on the back of the To introduce mounting surface.
  • From DE 29 11 873 C2 is for use in a cooling tower, a static mixer known, in which the internals of obliquely flowed, delta-shaped or circular disc-shaped sheets are made at the leading edges vortex.
  • the thus formed stationary and stable vortex systems act in the Flow back into it, the components to be mixed are layered rolled up, resulting in a quick mixing at very low Pressure loss leads.
  • These so-called “vertebral surfaces” are due to the achievable short mixing distances proven in practice.
  • the invention has for its object to provide a mixer for the mixing of at least two gas streams or other Newtonian liquids, which is characterized by a fast mixing at a short mixing distance even when a volume flow, a comparatively small proportion of another component is to be added.
  • a mixer is proposed with the invention, which is characterized in that the mounting surface has a chamber into which a flow channel for a second gas flow leads, and that the chamber facing away from the inflow of the first gas flow back of the mounting surface is provided with outlet openings.
  • the vortex mounting surface has a relatively low flow resistance, since it does not act with its entire surface as a guide surface, but generates vortex fields with their front edges, which expand automatically in the flow direction, without additional fittings or fins for this extension would be required.
  • the mouth of the second Gas stream is located in the area of the front half of the disc. In this way is the second, via the separate flow channel introduced gas flow already detected by those early onset vortex fields, those in the foremost edge region the disc will be generated.
  • a further advantage is that the chamber used for stiffening the installation surface can be.
  • the chamber with side walls is provided, which are arranged at an angle to the disc and the Stiffen the disc against bending loads and any vibrations.
  • the disc supported by struts in the main flow channel is, one of which is tubular and the separate flow channel forms.
  • the flow channel also assumes a static Function in the arrangement of the vortex mounting surface within the main flow channel.
  • Figure 1 shows a section through a portion of a flue gas denitrification with a main flow channel 1 in an upwardly rising arm and a reactor 2 in a downwardly pointing flow arm of the plant.
  • the reactor 2 is usually equipped with catalysts 3.
  • the flue gas passing through 4 in the main flow channel 1 NH 3 or NH 4 OH is to be added. This is done via a separate flow channel 5, which is guided through the wall 6 of the main flow channel 1 therethrough. Then it comes in a manner described in more detail below to a very rapid distribution and thus homogenizing the ammonia compound in the flue gas, so that in the subsequent inflow into the reactor 2, the ammonia compound is distributed completely uniformly in the flue gas stream.
  • the mixture of media is carried out using at least one in the Main flow channel 1 arranged mounting surface 7.
  • the installation surface. 7 it is a so-called "swirling area" for the production of Leading edge vortices.
  • the free flow around, against the flow in the Main flow channel 1 directed leading edges 8 of the e.g. a circular disk designed mounting surface 7 have both in the main flow direction 9, as also a transverse to this component.
  • each installation surface 7 at an acute angle ⁇ to the main flow direction 9 in the Flow channel 1 is arranged, arise at each leading edge of the Installation area Vortex fields, which spread downstream in a circular cone shape.
  • the individual vortices roll inwards on the back 10 of the Installation surface 7 from.
  • the vortex-generating properties of the mounting surface 7 are in Achieved connection with all so-called “Newtonian fluids", i. at Gases as well as in such fluids, resulting in their fluidic properties behaving comparably to the gases.
  • the preferably designed as a pipe separate flow channel 5 for the second Gas flow extends into the main flow channel 1 and opens there in the chamber 13 of the mounting surface 7.
  • About several struts 11 is the Installation surface 7 relative to the wall 6a of the main flow channel 1 so supported, that the angle ⁇ with respect to the main flow direction 9 between 40 ° and 80 ° and preferably about 60 °.
  • Figure 1 shows that multiple existing Outlet openings 12 at the level of the front half of the disc or mounting surface 7 are located.
  • the separate flow channel 5 is on the front of the Installation surface 7 led to this.
  • the pipe takes over the separate Flow channel 5 at the same time the static function of one of the struts 11.
  • This Struts 11 are located on the front of the mounting surface 7 to the Do not cause the vortex on the back to influence.
  • An attack angle ⁇ of the disc 7 relative to the main flow direction 9 to change, for example, by changing the effective length of the struts 11. This change or adjustment may also occur during operation of the mixer respectively.
  • Figure 1 also shows that the separate flow channel 5 is not immediate merges into the outlet openings 12, but rather via the flow channel.
  • 5 supplied second gas stream first passes into a chamber 13, which on the Rear of the mounting surface 7 is arranged. In the outside of the chamber 13 then are the outlet openings 12th
  • FIGS. 2 and 3 show two possible embodiments of the chambers 13, wherein in the case of Figure 3, the outlet openings 12 about the center line 14th the disc 7 are arranged around, while in the embodiment according to Figure 3, the outlet openings 12 on two groups on both sides of the center line 14 so as to escape only in those areas that are from the left or be swept over by the right leading edge vertebrae.
  • the embodiment of Figure 4 differs from the embodiment according to Figure 3 by two separate flow channels 5, on the two separate Gas flows in turn get two separate chambers 13 a, 13 b.
  • the separate chambers 13a, 13b can also be behind each other. This is shown in Fig. 5a.
  • Figures 7 and 8 show that the outlet openings 12 in the Area of the front end face 16 of the chamber 13 can be located. To this The result is an outflow, the almost opposite to the the leading edges 8 forming vertebral fields, which makes it a very early Mixing comes.
  • the installation surfaces 7 were designed substantially circular or elliptical.
  • Figures 9 and 10 show that the mounting surface and the shape a delta-shaped triangle directed counter to the flow direction Tip may have.
  • Figure 10 reveals an additional hood 16 with over its entire circumference distributed outlet openings 12 are used.
  • the hood 16 is on the up the back of the disc 7 arranged chamber 13 placed, however, can also be the chamber 13 itself hood-shaped.
  • FIGS. 1 to 10 show that the walls of the chamber 13, since these are arranged perpendicularly, but at least at an angle to the mounting surface 7 are that can reinforce the mounting surface 7 with respect to bending loads. Out For this reason, close to serve as the distributor for the second gas stream Kammem 13 more Kammem 17 on, but no distribution function or fluidic function, but only the stiffening serve the mounting surface 7.

Claims (7)

  1. Mélangeur pour mélanger au moins deux courants gazeux ou d'autres liquides newtoniens, avec un conduit d'écoulement principal (1) parcouru par le premier courant gazeux avec une surface encastrée (7) disposée dans celui-ci, influençant l'écoulement, dans lequel la surface encastrée (7) est un disque produisant des vortex avec des bords avant (8) librement contournés par l'écoulement, dirigés contre l'écoulement, dont l'allure présente aussi bien une composante se prolongeant dans la direction de l'écoulement principal (9) du courant gazeux, qu'une composante se prolongeant transversalement par rapport à celle-ci,
       caractérisé en ce que,
       la surface encastrée (7) présente une chambre (13, 13a, 13b), dans laquelle un conduit d'écoulement (5) est amené pour un deuxième courant gazeux, et en ce que la chambre (13, 13a, 13b) est pourvue d'ouvertures de sortie (12) sur la face arrière (10) de la surface encastrée (7) faisant dos à l'afflux du premier courant gazeux.
  2. Mélangeur selon la revendication 1, caractérisé en ce que l'embouchure du deuxième courant gazeux dans le premier courant gazeux se trouve dans la zone de la moitié avant de la surface encastrée (7).
  3. Mélangeur selon la revendication 1 ou 2, caractérisé en ce que la chambre (13, 13a, 13b) est pourvue de parois latérales, qui sont disposées selon un angle par rapport à la surface encastrée (7) et qui renforcent la surface encastrée (7) envers des sollicitations en flexion.
  4. Mélangeur selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le canal d'écoulement séparé (5) sur la face avant de la surface encastrée (7), tourné vers l'afflux du premier courant gazeux, est amené vers celle-ci.
  5. Mélangeur selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la surface encastrée (7) est supportée par des traverses (11) dans la conduit d'écoulement principal (1), dont une est façonné en forme de tube et forme le conduit d'écoulement séparé (5).
  6. Mélangeur selon l'une quelconque des revendications précédentes, caractérisé par un dispositif pour ajuster l'angle d'ajustement (α) de la surface encastrée (7) par rapport à la direction de l'écoulement principal (9).
  7. Mélangeur selon l'une quelconque des revendications précédentes, caractérisé en ce que les ouvertures d'écoulement (12) des chambres séparées (13a, 13b) sont disposées l'une derrière l'autre.
EP00112875A 2000-06-19 2000-06-19 Mélangeur pour mélanger au moins deux courants de gaz ou d'autres liquides newtoniens Expired - Lifetime EP1166861B1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP00112875A EP1166861B1 (fr) 2000-06-19 2000-06-19 Mélangeur pour mélanger au moins deux courants de gaz ou d'autres liquides newtoniens
DK00112875T DK1166861T3 (da) 2000-06-19 2000-06-19 Blander til blanding af i det mindste to gasstrømme eller andre Newtonske væsker
DE50001550T DE50001550D1 (de) 2000-06-19 2000-06-19 Mischer für die Mischung mindestens zweier Gasströme oder anderer Newtonscher Flüssigkeiten
ES00112875T ES2192505T3 (es) 2000-06-19 2000-06-19 Mezclador para mezclar por lo menos dos corrientes de gas o de otros fluidos newtonianos.
AT00112875T ATE235311T1 (de) 2000-06-19 2000-06-19 Mischer für die mischung mindestens zweier gasströme oder anderer newtonscher flüssigkeiten
MXPA01006231A MXPA01006231A (es) 2000-06-19 2001-06-18 Mezclador para la mezcla de cuando menos dos corrientes de gas u otros fluidos newtonianos.
CA002350961A CA2350961C (fr) 2000-06-19 2001-06-18 Melangeur pour melanger au moins deux flux de gaz ou d'autres liquides newtoniens
US09/884,356 US6779786B2 (en) 2000-06-19 2001-06-19 Mixer for mixing at least two flows of gas or other newtonian liquids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00112875A EP1166861B1 (fr) 2000-06-19 2000-06-19 Mélangeur pour mélanger au moins deux courants de gaz ou d'autres liquides newtoniens

Publications (2)

Publication Number Publication Date
EP1166861A1 EP1166861A1 (fr) 2002-01-02
EP1166861B1 true EP1166861B1 (fr) 2003-03-26

Family

ID=8169004

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00112875A Expired - Lifetime EP1166861B1 (fr) 2000-06-19 2000-06-19 Mélangeur pour mélanger au moins deux courants de gaz ou d'autres liquides newtoniens

Country Status (8)

Country Link
US (1) US6779786B2 (fr)
EP (1) EP1166861B1 (fr)
AT (1) ATE235311T1 (fr)
CA (1) CA2350961C (fr)
DE (1) DE50001550D1 (fr)
DK (1) DK1166861T3 (fr)
ES (1) ES2192505T3 (fr)
MX (1) MXPA01006231A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006004068A1 (de) * 2006-01-28 2007-08-09 Fisia Babcock Environment Gmbh Verfahren und Vorrichtung zum Vermischen eines Fluids mit einem großen Gasmengenstrom
DE102006004069A1 (de) * 2006-01-28 2007-09-06 Fisia Babcock Environment Gmbh Verfahren und Vorrichtung zum Vermischen eines Fluids mit einem großen Gasmengenstrom
US8501131B2 (en) 2011-12-15 2013-08-06 General Electric Company Method and apparatus to inject reagent in SNCR/SCR emission system for boiler
DE102017002811A1 (de) 2017-03-22 2018-09-27 Balcke-Dürr GmbH Strömungskanal mit einer Mischvorrichtung

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US20050056313A1 (en) * 2003-09-12 2005-03-17 Hagen David L. Method and apparatus for mixing fluids
DE602005021003D1 (de) 2004-02-27 2010-06-17 Haldor Topsoe As Vorrichtung zum Mischen von Fluidströmen
US7448794B2 (en) 2004-02-27 2008-11-11 Haldor Topsoe A/S Method for mixing fluid streams
US7383850B2 (en) * 2005-01-18 2008-06-10 Peerless Mfg. Co. Reagent injection grid
US20060216573A1 (en) * 2005-03-25 2006-09-28 Pfister Dennis M Power supply incorporating a chemical energy conversion device
DE102005059971A1 (de) † 2005-12-15 2007-06-21 Fisia Babcock Environment Gmbh Vorrichtung zum Vermischen eines Fluids mit einem großen Gasmengenstrom, insbesondere zum Einbringen eines Reduktionsmittels in ein Stickoxide enthaltendes Rauchgas
US8277116B2 (en) * 2007-05-07 2012-10-02 The Boeing Company Fluidic mixer with controllable mixing
US8010236B2 (en) * 2007-10-30 2011-08-30 Babcock Power Environmental Inc. Adaptive control system for reagent distribution control in SCR reactors
US9387448B2 (en) * 2012-11-14 2016-07-12 Innova Global Ltd. Fluid flow mixer
DE202013006962U1 (de) 2013-08-05 2013-08-28 Tenneco Gmbh Mischkammer
CN103877837B (zh) * 2014-02-26 2016-01-27 中国科学院过程工程研究所 一种应用于低温氧化脱硝技术的烟道臭氧分布器及其布置方式
US9784163B2 (en) 2015-01-22 2017-10-10 Tenneco Automotive Operating Company Inc. Exhaust aftertreatment system having mixer assembly
DE102015103425B3 (de) 2015-03-09 2016-05-19 Tenneco Gmbh Mischvorrichtung
US10058829B2 (en) * 2015-10-21 2018-08-28 Jason Ladd Static mixer manifold
GB2550130B (en) * 2016-05-09 2021-01-27 James Muggleton Kevin System including passive blender for use with gas from an unconventional source
WO2019012176A1 (fr) * 2017-07-11 2019-01-17 Outotec (Finland) Oy Appareil d'arrosage
DE102018005192B3 (de) 2018-07-02 2019-12-05 Truma Gerätetechnik GmbH & Co. KG Brennervorrichtung

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006004068A1 (de) * 2006-01-28 2007-08-09 Fisia Babcock Environment Gmbh Verfahren und Vorrichtung zum Vermischen eines Fluids mit einem großen Gasmengenstrom
DE102006004069A1 (de) * 2006-01-28 2007-09-06 Fisia Babcock Environment Gmbh Verfahren und Vorrichtung zum Vermischen eines Fluids mit einem großen Gasmengenstrom
US8501131B2 (en) 2011-12-15 2013-08-06 General Electric Company Method and apparatus to inject reagent in SNCR/SCR emission system for boiler
DE102017002811A1 (de) 2017-03-22 2018-09-27 Balcke-Dürr GmbH Strömungskanal mit einer Mischvorrichtung

Also Published As

Publication number Publication date
CA2350961C (fr) 2005-08-16
DE50001550D1 (de) 2003-04-30
EP1166861A1 (fr) 2002-01-02
DK1166861T3 (da) 2003-07-21
MXPA01006231A (es) 2003-05-19
US20020017731A1 (en) 2002-02-14
ES2192505T3 (es) 2003-10-16
US6779786B2 (en) 2004-08-24
CA2350961A1 (fr) 2001-12-19
ATE235311T1 (de) 2003-04-15

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