EP0207943A1 - Procede pour traiter des gaz de fumee, en particulier des gaz d'echappement. - Google Patents

Procede pour traiter des gaz de fumee, en particulier des gaz d'echappement.

Info

Publication number
EP0207943A1
EP0207943A1 EP85901447A EP85901447A EP0207943A1 EP 0207943 A1 EP0207943 A1 EP 0207943A1 EP 85901447 A EP85901447 A EP 85901447A EP 85901447 A EP85901447 A EP 85901447A EP 0207943 A1 EP0207943 A1 EP 0207943A1
Authority
EP
European Patent Office
Prior art keywords
chamber
turbulence
exhaust
opening
reaction 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.)
Granted
Application number
EP85901447A
Other languages
German (de)
English (en)
Other versions
EP0207943B1 (fr
Inventor
Veikko Rahikka
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.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT85901447T priority Critical patent/ATE44801T1/de
Publication of EP0207943A1 publication Critical patent/EP0207943A1/fr
Application granted granted Critical
Publication of EP0207943B1 publication Critical patent/EP0207943B1/fr
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/26—Construction of thermal reactors

Definitions

  • the object of this invention is an apparatus for treating smoke gases, especially for treating exhaust gases of the combustion engine, which apparatus consists of a turbulence chamber, to which the gas to be treated is tangentially brought, which chamber is a cylinder-symmetrical and from the edges towards the centre widening space and to the axis of which an air channel has been connected, at the centre of the wall of which chamber there is an opening, through which the gas and air mixture removes from the turbulence chamber.
  • the apparatus can be connected to the exhaust manifold or exhaust pipes of the motor or to the smoke channel of a heating kettle or a corresponding device using liquid or solid fuel.
  • the exhaust gases of the combustion engines contain gases injurious to the environment.
  • gases E.g. carbon monoxide, nitrogen oxides and the carbon hydrogens that remain unburnt in the combustion space of the motor are this kind of gases.
  • Corresponding gases are also formed in other places e.g. in the heating kettle in connection of the common burning process. It depens among other things on the used fuel , which gas components are formed in connection of burning.
  • the amount of the smoke or exhaust gases can naturally be influenced by adjusting the burning process as optimal as possible, i.e. such that the burning takes place as completely as possible. This cannot always be done or it is not possible, and then different auxiliary devices are necessary, with help of which the smoke or exhaust gases are tried to clean from the gases injurious to the environment.
  • An advantageous way is to increase air (oxygen) and to retreat the gases in high temperature after the proper burning process, when at least a part of the gases burns and changes harmless for the environment.
  • each chamber thanks to V-shaped steering surfaces, two different turbulences, a growing or developing and a reducing or discharging turbulence are formed.
  • the burning takes place effectively as the turbulences are partly mixing with each other when the gases flow through the centre opening and/or the tangential connection chamber to the next chamber.
  • the principle has been adapted especially for a central heating kettle, where the mixture of fuel and burning air led from the oil burner opening will be led to the combustion chamber and further to the additional chambers, from which the gases remove through the smoke channel .
  • a disadvantage in the ⁇ apparatus in accordance with the American patent is its structure which is difficult to manufacture.
  • the apparatus requires a sufficiently great and even pressure of smoke gases, in order to be able to function properly.
  • the fluctuations of the pressure considerably disturb the advance of the smoke gas turbulences in the additional combustion chambers.
  • the apparatus is not suitable for combustion motor use.
  • the British patent GB 1,358,743 is concerned with the oxidizing or additional burning apparatus of exhaust gas, which apparatus is especially determined for combustion engines.
  • a turbulence or mixing chamber widening towards the centre belongs to this, and the exhaust gases are led to this chamber tangentially through one or more nozzles and are brought in this way to revolving motion.
  • the additional air is led through the air opening at' the axis of the mixing chamber.
  • the mixture of gas and air is led out from the mixing chamber through the opening on the opposite side of the air opening to the ball-shaped combustion chamber.
  • the ignition devices have been placed to this in order to effect the burning of the gas.
  • the problem with the apparatus in accordance with the British patent is among other things the fact that the apparatus does not function in a satisfying way with the small numbers of revolution of an engine.
  • the pressure waves of the exhaust gases cause occasional disappearing of the lowpressure from the centre axis of the chamber, when the supply of the additional air is disturbed.
  • the combustion process may move once in a while owing to pressure fluctuations to the air inlet and to the mixing chamber.
  • the required treatment time can be realized simply and effectively with the apparatus in accordance with the invention, wherein to the first side of the turbulence chamber the first favourably tubeshaped reaction chamber has been axially connected, the length of which chamber can be chosen as required and to which also the catalyst charge or coating can be placed and to which first reaction chamber, to the opposite side of the turbulence chamber, another reaction chamber has been connected to the same axis by means of th cylindrical intermediate chamber and the conical exhaust chamber.
  • the length of the treatment time for smoke gases can expressly be lengthened by changing the length of the first reaction chamber.
  • a catalyst charge or chamber and/or electrical electrodes can be connected to the other end of the first reaction chamber.
  • the treatment of smoke gases can be effected in a known way.
  • the apparatus according to the invention are additionally easy to be coupled parallelly.
  • manufacture of the treatment apparatus of different sizes for smoke gases is simple, as they are most suitably connected from similar basic devices.
  • Fig. 1 illustrates one embodiment of the invention as section picture seen from the side;
  • Fig. 2 illustrates a cross section B-B of the embodiment of
  • Fig. 1; Fig. 3 illustrates a cross section C-C of the embodiment of
  • Fig. 1; Fig. 4 illustrates the ring-shaped channels connected with the turbulence chamber and steering baffles spreaded to a level ;
  • Fig. 5 illustrates another embodiment of the invention as section picture seen from the side;
  • Fig. 6 illustrates the first reaction chamber with a catalyst charge;
  • Fig. 7 illustrates a parallel coupling of the additional treatment apparatus according to the invention as profile section;
  • Fig. 8 illustrates the section E-E about the parallel coupling of the additional treatment apparatus in Fig. 7, and
  • Fig. 9 illustrates a separate additional treatment apparatus in the parallel coupling of Fig. 7.
  • the additional treatment apparatus of the smoke gases or corresponding according to the invention comprises two treatment units.
  • the first unit consists of turbulence chamber 1, of the first reaction chamber 2 placed to the axis of the chamber and at the same time to the main axis A-A of the additional treatment apparatus, which first reaction chamber is connected with the first exhaust opening 3 in the turbulence chamber 1; and of the first air channel 4, which has been favourably connected to the turbulence chamber 1 and to the reaction chamber 2.
  • the second treatment unit consists of the second exhaust opening 5, which is on the axis A-A of the turbulence chamber 1 opposite to the exhaust opening 4 and the reaction chamber 2, of the intermediate chamber 6 connected to the exhaust opening 5, of the exhaust chamber 7 and the second reaction chamber 8 following the exhaust opening 5 and the intermediate chamber 6.
  • the turbulence chamber 1 is a cylinder symmetrical space, which widenes at the edges towards the centre and the axis A-A.
  • the first and second walls 10 and 11 of the turbulenc chamber 1 are in an angle ° against the axis A-A.
  • the angl C ⁇ is 50° ⁇ r °T ⁇ 90°, preferably 75°.
  • the treatment units have been placed inside the cylinder-shaped casing 12.
  • the casing 12 has additionally been surrounded by heat insulation 13. So especially the thermal energy of the exhaust gases can be used in the additional treatment process.
  • the smoke gases to be treated are led to the turbulence chamber 1 in tangential direction through one or more openings or nozzles.
  • the inlet channel 15 is in this case in direction of the axis A-A, but it can be connected to the intermediate space 15 in a desired way and in any angle.
  • the first ring-shaped channel 16 is situated, to which the baffles 17 in a distance of each other have been placed.
  • baffles have been assembled to oblique angle [3 in regard of the vertical level of the axis A-A, most usefully to acute angle.
  • gas is led through the inlet channel 14 to the first intermediate space 15, it moves in direction of axis A-A towards the turbulence chamber 1, as shown with arrows in Fig. 1 and 2.
  • the gas hits against the baffles 17, it receives by means of these when arriving in the turbulence chamber 1, a tangential motion component and the gas turbulence is formed.
  • baffles 19 which have been placed to another ring-shaped channel 18 to the opposite side of the ring area of the turbulence chamber 1.
  • a ring-shaped intermediate channel 20 through which the the gas flow out to another intermediate space 21 on the other side of the turbulence chamber.
  • the intermediate channel 20 has been lengthened in direction of the axis A-A with a cylindrical extension part 22, in order that the circulation of the gas would become more effective and take place through the back part of the intermediate space 21.
  • the other baffles 19 correspond to the first baffles 17; they have been assembled to oblique angle
  • 3' -I3. Then the gas flowing out from the second intermediate space 21 to the turbulence chamber 1 receives a tangential motion component of the same direction as the gas flowing out from the first intermediate space 14 and in a most preferable case the axial motion components are eliminated.
  • the smoke gases receive in this case a turbulence or circulation advancing from the ring area towards the centre and accelerating in angle speed.
  • the first reaction chamber 2 is a elongated cylindrical space, the length of which can be set according to requirement depending on the adaptation.
  • the reaction chamber 2 has been connected from its first end to the exhaust opening 3 of the turbulence chamber 1 to the centre of the wall 10 and in direction of the a xis A-A of the turbulence chamber.
  • the other end of the reaction chamber 2 has been closed.
  • the first exhaust opening 3 which thus forms the mouth of the reaction chamber 2 is bigger than the second exhaust opening 5.
  • the first reaction chamber 2 can differ from the tube-shaped or cylindrical space. It can be widening towards its closed end or wider at the centre than at the ends, e.g. a ball or an ellipsoid. It is essential that the reaction chamber is in regard of the axis A-A cylinder-symmetrical, when the gas turbulence can move without hindrance to the reaction chamber 2 longitudinally.
  • the first air channel 4 has been placed to the axis A-A of the turbulence chamber 1 and at the same time to the centre axis of the first reaction chamber 2, one or more inlets 23 of which channel have been connected to open air or to some other suitable air or oxygen source.
  • the outlet opening 24 of the air channel has been preferably placed between the centre part of the turbulence chamber 1 and the second exhaust opening 5.
  • the air channel 4 can also be connected in another way to the turbulence chamber 1 and to the reaction chamber 2 as shown afore. It can be brought e.g. from the vicinity of the connection points of the chambers 1 and 2 to the axis A-A (compare Fig. 4) and it can have e.g. two outlet openings 24, which open both to the centre of the turbulence chamber 1 and towards the closed end of the reaction chamber 2.
  • the total cross-area of the ring-shaped channels 16, 18 is in general as great or at least almost as great as the cross-area of the second exhaust opening 5.
  • the second exhaust opening 5 has been made to intermediate chamber 6, which comprises a direct cylindrical space. So retaining of a sufficiently strong axial lowpressure field by means of advancing gas turbulence at once after the turbulence chamber 1 and the first reaction chamber 2 and an efficient supply of additional air is guaranteed also in the second treatment unit.
  • a ring-shaped edge to the connecting point or close to it of the second wall 11 of the turbulence chamber 1.and the exhaust opening 5 and at the same time intermediate chamber 6, which edge covers a certain distance from the wall of the turbulence chamber towards the inner space.
  • the edge 25 can consist e.g. of the extension of the intermediate chamber 6. The edge 25 breaks the direct connection between the walls of the chamber 1 and 6. So the escape of the smoke gases from the first treatment unit is prevented before the chambers 1 and 2 have been filled with gas and a strong turbulence flow has been formed there.
  • the exhaust chamber 7 is a cylinder-symmetrical space, which is bounded to conical walls, outer wall 71 and inner wall 72. It has been connected with a ring-shaped channel 26 or opening to the second reaction chamber 8.
  • the opening angle t of the conical outer wall 71 of the turbulence chamber is between 75°...30°, preferably 45°.
  • the opening angle " of the inner wall, which is half of the point angle of the cone, is either as big as the opening angle H of the outer wall or a little bigger, e.g. 5°...15°. Then the effective cross-area of the turbulence chamber 7 reduces towards the reaction chamber 8.
  • the cross-area of the exhaust opening 5 and the intermediate chamber 6 is as big or bigger than the cross-area of the outlet opening of the turbulence chamber or the channel 26.
  • baffles 26a it is preferable to place in the ring-shaped channel 26 baffles 26a in a distance of each other, which baffles are in an oblique angle in regard of the vertical l evel of the axis A-A.
  • the baffles are so similar to the baffles 17 and 19 assembled in the channels 16 and 18 and preferably to the angle ⁇ .
  • the gas turbulence widenes and advances in a controlled way from the intermediate chamber 6 to the second reaction chamber 8.
  • the exhaust chamber 7 is restricted in a way that the burning gas turbulence is fed from a relatively narrow ring-shaped area where is further baffles 26a, to the reaction chamber 8. So the pressure hits backwards to the space of lowpressure of the intermediate chamber 6 and further of the reaction chamber 2, which hits on appearing would choke the whole additional treatment process of the smoke and exhaust gases.
  • the pressure hits moving back and forth caused by the engine are smoothed by means of the exhaust chamber 7.
  • the second reaction chamber 8 is a cylindrical space the axis of which is combined to the main axis A-A of the additional treatment apparatus.
  • the exhaust chamber 7 is connected to the combustion chamber with a ring-shaped outlet opening or channel 26.
  • the reaction chamber 8 has been connected further to the exhaust or to the corresponding outlet channel 27.
  • the length of the second reaction chamber 8 is preferably approximately the same as the first combustion chamber 2.
  • the second air channel 9 can be connected to the point part of conical inner wall 72 of the exhaust chamber 7.
  • This air channel is equipped with a conical shelter 28, at the centre of which there is an air opening 29a. Further a ring-shaped air channel 29 in the vicinity of the inner wall 72 leads to the exhaust chamber 7. So the sufficient supply of air in the second reaction chamber 8 is guaranteed.
  • An additional treatment apparatus of smoke or exhaust gases functions in principle as follows.
  • the smoke gases are led along the inlet channel 14 inside the casing 12 of the apparatus to the first intermediate space 15.
  • the smoke gases flow out through the ring-shaped intermediate channel 20 to the second intermediate space 21 and further through the ring-shaped channels 16 and 18 to the turbulence chamber 1.
  • the baffles 17, 19 in the channels 16, 18 give to the gas penetrating the turbulence chamber 1 a tangential motion, when the gases begin to rotate a spiral-shaped course D with accelerating speed towards the centre of the turbulence chamber 1.
  • the gas turbulence begin to flow out to the first reaction chamber 2.
  • the edge 25 prevents the gas turbulence from escaping influenced by potential axial motion component along the wall 11 of the turbulence chamber from the turbulence chamber 1, before the chamber has been partly filled with gas and the gas has began to flow out to the first reaction chamber 2.
  • the gas flows out as accelerating turbulence from the turbulence chamber 1 to the first reaction chamber 2 along its mantle from the exhaust opening 3 to the closed end of the reaction chamber 2 and further back as undersided second turbulence of this first turbulence, until the turbulence chamber 1 and the reaction chamber 2 are almost full and the advancing continues through the second exhaus opening 5 to the intermediate chamber 6.
  • lowpressure field influenced by centrifugal power, is formed to the axis A-A of the turbulence chamber 1 and to the outer surface of the air channel 4 which has the same direction as the axis.
  • the temperature of the smoke gas turbulence is in most cases high enough to generate a sel fignition , in which case when the gas turbulence is moving and condensed in the first reaction chamber 2, it at the same time ignites.
  • the additional treatment apparatus according to the invention suits among other things to remove the carbon monoxide from the smoke gases.
  • the following reactions are known:
  • the circumstances especially the temperature in the additional treatment apparatus from the centre opening 3 forward are such that one or more aforementioned reactions take place.
  • the smoke gases advance through the chamber 1, 2, 6 and 7 at the vicinity of their walls as quickly rotating gas turbulence, to which air absorbs from the air channels.
  • the axial speed of the gas turbulence is not great and e.g. the length of the first reaction chamber can be chosen so that the smoke gases remain in the treatment apparatus relatively long.
  • the carbon monoxide has time to disappear according to the aforementioned reactions in optimal circumstances almost perfectly.
  • the chambers are preferably manufactured of steel, when they can " also function catalytically (reaction 3).
  • Fig. 5 shows a second embodiment of the treatment apparatu according to the invention.
  • the apparatus is mainly as presented above and the same reference numbers have been used for the corresponding members.
  • the smoke gases to be treated are led to the casing 12 through a tangentially adapted inlet channel 14a to the first intermediate space 15. So the coming gases receive a turbulence motion when entering the treatment apparatus.
  • the intermediate space 15 has been combined with one ring-shaped channel 16 to the turbulence chamber 1.
  • the ring-shaped channel 16 has preferably also the baffles 17.
  • the first reaction chamber 2 is a cylindrical space as in the embodiment of Fig. 1, but the space continues to the casing 12 of the treatment apparatus or outside it.
  • the catalyst chamber 30 has been connected to the end of the reaction chamber 2. This chamber has preferably been attached with threads to the end of the reaction chamber 2, when it can be easily changed.
  • known catalysts can be used as coating 31 or as changeable charge in the catalyst chamber.
  • a pair of electrodes 32 can also be connected to the catalyst chamber 30. If a voltage difference is arranged between the electrodes in a way as such known, sparking takes place between them, which contributes to ignition and burning of the smoke gas in the reaction chamber 2. This way of action can be used, when the temperature of the smoke gases is not high enough for one reason or another, in order that the selfignition could take place.
  • An alternating current source of high frequency can alternatively be connected to the pair of electrodes, the frequency of which source is about 300 Hz.
  • the electrical disharges between the electrodes generated by means of this source break up e.g. nitrogen oxides.
  • the catalyst chamber 30 can be equipped with a heat insulation layer 33. It is to be noted that the chamber 30 can always be easy to change after fullfillment of a certain time of driving, e.g. when the catalyst has lost its effect or when the electrodes become defect.
  • the first air channel 4 has been connected to the reaction chamber 2 in the embodiment of Fig. 5, the two inlet openings 23 of which channel have been connected to open air.
  • the first one 24a opens according to the embodiment of Fig. 1 between the centre part of the turbulence chamber 1 and the second exhaust opening 5 and the second 24b to the axis A-A of the first reaction chamber. Additional air flows effectively through the second outlet opening 24b to the first reaction chamber 2 by means of the lowpressure field formed to its axis A-A.
  • the second treatment unit is constructed according to the embodiment of Fig. 1.
  • the conical shelter 28 of the second air channel 9 is not this time equipped with the air opening at the centre, but with a ring-shaped air channel 29. An air opening of this kind can if necessary be arranged in the middle of the shelter 28.
  • Fig. 6 presents another solution for providing of the catalyst to the first reaction chamber 2.
  • the reaction chamber is beginning at the exhaust opening 3 first conically widening 2a and then a cylindrical space 2b.
  • the bottom part 34 of the cylindrical space 2b can be preferably attached with threads or quick couplings hermetically to their places to the end of the space 2b in a way that it can be easily changed.
  • a tube-shaped part 35 with a smaller diameter has been attached to the bottom part 34 concentrically with the reaction chamber 2, which tube-shaped part consists at least partly of catalyst material like of cylindrical catalyst charge 36. This is equipped at least partly and especially at the vicinity of the bottom part with holes 37. These are preferably according to the circulation direction of gas in regard of direction of the chamber's 2 radius, oblique holes.
  • the gas turbulence flows out from the turbulence chamber 1 through the first exhaust opening 3 first to the ring-shaped outer space 38 of the first reaction chamber 2 and from there through the said openings 37 of the catalyst charge to the cylindrical inner space 39.
  • Advantages of this arrangement are an effective reciprocity between the smokegases and catalyst material and the changeable catalyst charge.
  • the construction of the catalyst charge can also be different.
  • a bar attached to the centre of the bottom part 34 in direction of the axis A-A, which bar reaches the middle part of the reaction chamber 2.
  • Disk-, plate- or ridge-shaped parts which are of the above catalyst material have been attached to the bar vertically at a distance
  • nickel, palladium, platinum or their alloys can be used as catalyst materials in all above embodiments among other things.
  • the treatment units of smoke gases according to the invention can be coupled in series and/or parallelly.
  • the coupling in series means that two or more treatment units are coupled successively. This can take place either in a way that the treatment units are completely similar or in a way that all treatment units expect the first one are lacking the first reaction chamber 2, instead of which the gas is fed from the turbulence chamber 1 directly to the exhaust chamber 7.
  • the parallel coupling is understood coupling of treatment units, which are preferably similar, side by side, i.e. parallelly.
  • a favourable solution for parallel coupling of the additional treatment apparatus has been illustrated.
  • Two or more similar additional treatment apparatus have been adapted inside the same casing structure 40 which is preferably equipped with insulation layer 46.
  • a treatment apparatus of this kind 41 has been illustrated separately in Fig. 8. Besides the casing 40, the inlet channel 42 of the smoke gas, the first and second intermediate space 43, 44 and the channels 45 connecting the spaces are common to the additional treatment apparatus 41.
  • Each treatment apparatus 41 is almost the same as known in Fig. 5.
  • the same reference numbers are used for the corresponding parts in both Figures.
  • the second intermediate space 44 is connected to the turbulence chamber 1 with a ring-shaped channel 18 with baffles 19.
  • the first ring channel of the additional treatment apparatus of Fig. 5 (or Fig. 1 ) is closed.
  • the parallelly coupled additional treatment apparatus can be provided to function in a way that they always function at the same time or that they couple to function one after another.
  • the last mentioned form of function can be realized by means of a pressure sensor 46 connected to the intermediate space 43 or 44, by means of the valves 47 set to the outlet channels 27 of the treatment apparatus and by means of the actuators of the valves.
  • One treatment apparatus 41 can be without a valve 47, as shown in Fig. 7.
  • the pressure sensor 46 and the actuators 48 of the valve are connected to the control unit 49.
  • the above parallelly coupled treatment apparatus is connected to the exhaust manifold of a combustion engine. With the small revolutions of the engine as on idle run, the amounts of the exhaust gases are in minimum. The pressure in the intermediate spaces 43, 44 of the additional treatment apparatus cannot become great, as one treatment apparatus 41 is able to treat this gas amount. When more power is taken form the engine and/or it runs with great revolutions, the amount of gases increases and at the same time the pressure in the intermediate spaces, as the capacity of one treatment apparatus 41 is not sufficient to treat all produced exhaust gas. The pressure is observed with the sensor 46 and with control unit 49.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

Appareil pour traiter des gaz de fummée, en particulier des gaz d'échappement d'un moteur à combustion. L'appareil se compose d'une chambre de turbulences (1) à laquelle est amené tangentiellement les gaz à traiter. La chambre est un espace cylindrique symétrique, s'élargissant à partir des bords en direction du centre, à l'axe (A-A) duquel est connecté le conduit d'air (4). Au milieu de la paroi de la chambre (1) se trouve une ouverture par laquelle le mélange de gaz et d'air est rétiré de la chambre de turbulences. L'appareil est conçu pour être fixé au collecteur d'échappement ou au tuyau d'échappement d'un moteur, ou alors au conduit de fumée d'un appareil utilisant un combustible liquide ou solide. L'appareil de traitement conforme à la présente invention comporte deux unités de traitement. La première se compose de la chambre de turbulences (1), de la première chambre de réaction cylindrique symétrique (2) placée sur l'axe (A-A) de la chambre (1), cette chambre de réaction étant connectée avec la première ouverture d'échappement (3) à la chambre de turbulences (1), ainsi que du premier conduit d'air (4) qui est connecté à la chambre de turbulences (1) et à la chambre de réaction (2). La seconde unité de traitement se compose de la seconde ouverture d'échappement (5) dans la chambre de turbulences (1), cette ouverture se trouvant sur l'axe (A-A) de la chambre de turbulences (1) à l'opposé de la première ouverture d'échappement (3) et de la chambre de réaction (2), de la chambre intermédiaire cylindrique (6) connectée à l'ouverture d'échappement (5), de la chambre d'échappement conique (7) suivant la chambre intermédiaire et de la seconde chambre de réaction cylindrique symétrique (8).
EP85901447A 1984-03-01 1985-03-01 Procede pour traiter des gaz de fumee, en particulier des gaz d'echappement Expired EP0207943B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85901447T ATE44801T1 (de) 1984-03-01 1985-03-01 Vorrichtung zur behandlung von rauchgas, insbesondere auspuffgas.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
WOPCT/FI84/00020 1984-03-01
PCT/FI1984/000020 WO1985003976A1 (fr) 1984-03-01 1984-03-01 Appareil pour la post-combustion de gaz de fumee

Publications (2)

Publication Number Publication Date
EP0207943A1 true EP0207943A1 (fr) 1987-01-14
EP0207943B1 EP0207943B1 (fr) 1989-07-19

Family

ID=8556355

Family Applications (2)

Application Number Title Priority Date Filing Date
EP19840901197 Withdrawn EP0205420A1 (fr) 1984-03-01 1984-03-01 Appareil pour la post-combustion de gaz de fumee
EP85901447A Expired EP0207943B1 (fr) 1984-03-01 1985-03-01 Procede pour traiter des gaz de fumee, en particulier des gaz d'echappement

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP19840901197 Withdrawn EP0205420A1 (fr) 1984-03-01 1984-03-01 Appareil pour la post-combustion de gaz de fumee

Country Status (3)

Country Link
EP (2) EP0205420A1 (fr)
AU (1) AU4116385A (fr)
WO (2) WO1985003976A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102305117B (zh) * 2010-05-25 2014-03-05 宋殿麒 内燃机燃尽气缸—烟气净化装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO93939A (fr) * 1957-05-14
US3581494A (en) * 1970-01-02 1971-06-01 Arvin Ind Inc Exhaust gas manifold
SE374166B (fr) * 1970-06-16 1975-02-24 V Rahikka
CA938456A (en) * 1970-08-24 1973-12-18 J. Lang Robert Reactor assembly to reduce automotive emissions from an internal combustion engine
GB1389285A (en) * 1971-05-26 1975-04-03 Exxon Research Engineering Co Purification of internal combustion engine exhaust gas
GB1418826A (en) * 1972-04-14 1975-12-24 Texaco Development Corp Swirl reactor for combustion engine exhaust gases process and apparatus for forming layer of solder on a metallised surface of a sheet of glass and a process of making a soldered glazing unit involving such solder-layerformatio formation
IT984294B (it) * 1973-04-11 1974-11-20 Exxon Research Engineering Co Reattore termico a vortice con trollato e con ricupero di energia per la post combustione di gas di scarico di un motore a scoppio
CA1065714A (fr) * 1975-04-22 1979-11-06 Michio Kawamoto Tubulure pour gaz d'echappement d'un moteur a combustion interne
US4191132A (en) * 1977-11-29 1980-03-04 Rahikka Viekko E Thermic reactor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8503977A1 *

Also Published As

Publication number Publication date
WO1985003977A1 (fr) 1985-09-12
EP0207943B1 (fr) 1989-07-19
WO1985003976A1 (fr) 1985-09-12
AU4116385A (en) 1985-09-24
EP0205420A1 (fr) 1986-12-30

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