JPS61501312A - Smoke, especially exhaust gas treatment equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Smoke, especially exhaust gas treatment equipment The present invention relates to a device for smoke treatment, in particular for exhaust gas treatment of internal combustion engines, the treatment device comprising: It consists of a waste chamber into which the gas to be treated is transferred tangentially. The trash room is on the left It has a cylindrical shape with right symmetry, becoming wider from the edge toward the center and narrowing in the axial direction. is connected to the air passage. There is an opening in the center of the wall of the waste room, and the air passes through it. This device is used in exhaust manifolds, automobile exhaust pipes, heating kettle smoke passages or liquid and and can be connected to equipment using solid fuels.

It is common knowledge that the exhaust gas from internal combustion engines contains gases that are harmful to the environment. well known. This type of gas remains in the combustion space without burning. Examples include -carbon oxide, chlorine oxide, and hydrocarbon. Also, normal combustion Similar gases are also formed elsewhere in the heating reactor. Regarding combustion, gas formation This is mainly due to spent fuel.

The amount of smoke or exhaust gas is controlled to optimally adjust the combustion process, i.e. complete combustion. As a result, I naturally receive shadow training.

This is not always possible, i.e. impossible, and requires some kind of auxiliary equipment. be. Thanks to the auxiliary equipment, harmful gases to the environment are removed from smoke or exhaust gases. removed. Effective methods include increasing air (oxygen) and normal combustion. Gases may be reprocessed at high temperatures after the process, and at least some of the gases may be combusted. Transforms into something harmless to the environment.

As a smoke or exhaust gas combustion device, the applicant's British Patent No. 1.358.7 No. 43 and U.S. Pat. No. 4,191,132. . The above U.S. patent relates to a combustion chamber for burning gaseous substances with an after-combustion chamber. The combustion gases are then transferred to the waste stream. The proper combustion chamber is the rotating type. It is made of a cylindrical hollow body, and the gas flows toward the outer ring of one or more is introduced tangentially through further nozzles. Then, in the center of the combustion chamber A low pressure is applied to which combustion air is directed from the outside through the first central opening. be introduced. From this combustion chamber, the mixture of gas and air is sucked through the second central opening. Alternatively, under the influence of pressure, it is introduced into one or more after-combustion chambers. V-shaped in each post-combustion chamber Since there are 5 surfaces for orientation, there are two differences. A waste stream that grows or develops and decreases or is emitted occurs. Combustion is effective What ultimately happens is that the gas flows from the central opening and/or from the next pair of combustion chambers. This is when the waste streams partially mix with each other when they are connected tangentially. . This principle is particularly applied to heated reactors, where oil fists/henna The mixture of fuel and combustion air introduced through the opening passes first to the smoking chamber and then to the after-combustion chamber. from which gas is removed through the smoke passage.

The disadvantage of the device according to the above US patent is that its structure is difficult to manufacture. . The equipment must be large enough and the smoke pressure must be low for proper operation. The advancement of the smoke stream in the after-combustion chamber due to pressure fluctuations, which must be considerably high. will be considerably hindered. This type of device is suitable for internal combustion engines such as automobiles. It is not.

British Patent No. 1,358,743 relates to an exhaust gas oxidizer or after-burner. However, this device is especially designed for internal combustion engines. This device has a There is a double chamber, i.e. a mixing chamber, which is wide and has one or more nozzles. Exhaust gas is introduced into this mixing chamber from the tangential direction through the nozzle, and the exhaust gas is rotated. make a move. Additional air is introduced through air openings in the axial direction of the mixing chamber. gas The mixture of air and air exits the mixing chamber through an opening opposite the air opening and forms a spherical combustion introduced into the room. An igniter is preferably placed here to ensure effective combustion of the gas. be placed.

The problem with the device according to the above British patent is that it is not satisfactory when the engine speed is low. The fact is that the device will not function under these conditions. If the supply of additional air is not constant, Due to exhaust gas pressure waves, low pressure sometimes disappears from the central axis of the mixing chamber. On the other hand, pressure Due to the force fluctuations, the combustion process temporarily moves towards the air mass and the mixing chamber.

The object of the invention is to provide a smoke treatment device which eliminates the aforementioned drawbacks. Ru. This object is achieved by the features disclosed in the claims.

The capabilities of fumigation equipment based on waste stream combustion or related after-treatment equipment are particularly important for internal use. When used in a combustion engine, improvements can be made by creating a new shape of the device. subordinate Therefore, exhaust gas treatment equipment is used in a wide range of engine functions and during idling. However, known aftertreatment devices often have problems. Furthermore, the present invention Due to the external shape and structure of the processing equipment related to ushes) are efficiently attenuated. For example, it can be used as part of the exhaust pipe of an internal combustion engine. It also acts as an effective muffler.

The smoke must be combusted and catalyzed for a relatively long reaction time in the aftertreatment equipment. The gas is kept in a controlled waste flow motion for as long as possible within the device. If a catalyst chamber is used, gas may remain in the catalyst chamber for a long time. According to the apparatus according to the present invention, the required processing time is determined simply and effectively. A first preferably tubular reaction chamber is axially closed. The first g of the room! Connected on four sides, the length of this reaction chamber can be selected as required, and the A medium filler or coating can also be placed in the first reaction chamber. Opposite side of the trash room In this case, another reaction chamber is coaxially connected by a cylindrical intermediate chamber and a conical exhaust chamber. It is continued. The length of the baking process can be increased by changing the length of the first reaction chamber. can do.

According to one embodiment of the invention, the catalyst packing or the catalyst chamber and/or the electrodes are preferably or can be connected to the other end of the first reaction chamber, which is replaceable. With these methods, The process is effectively carried out in a known manner. Catalyst packing material and electrodes can be easily exchanged. Replaceability is important with regard to maintenance.

Additionally, devices according to the invention can be easily combined in parallel. this place If the Optimally connected to

The invention will be explained below with reference to the accompanying drawings.

FIG. 1 is a cross-sectional view of one embodiment of the invention seen from the side: FIG. 2 is a cross-sectional view of the embodiment shown in FIG. 1 taken along line B-B. FIG. 3 is a cross-sectional view of the embodiment shown in FIG. 1. is a sectional view taken along line C-C; Figure 4 shows an annular passage connected to a waste chamber and a horizontally extending deflector plate. FIG. 5 is a sectional view of another embodiment of the invention seen from the side; FIG. 6 is a cross-sectional view of the first reaction chamber with catalyst packing: FIG. 7 is a cross section of a case where the post-processing devices according to the present invention are connected in parallel; Figure 8 is a cross-sectional view taken along line E-E of the apparatus shown in Figure 7 in which post-processing devices are connected in parallel. can be: FIG. 9 is a sectional view showing an individual post-processing device for parallel coupling as shown in FIG.

The smoke aftertreatment device according to the invention consists of two treatment units. The first unit is , a waste chamber 1, a first air passage 2 and a first air passage 4 arranged in the axial direction of the chamber. The first reaction chamber is connected to the first exhaust port 3 of the waste chamber 1, and the first air passage 4 is Preferably, it is connected to the waste chamber 1 and the reaction chamber 2. The second processing unit is a second exhaust Mouth 5. An intermediate chamber 6 connected to the exhaust port 5, an exhaust chamber 7, and an intermediate chamber 6 connected to the exhaust port 5 and the intermediate chamber 6. It consists of a second reaction chamber 8, and the exhaust port 5 is located on the main axis A-A of the waste chamber 1. It faces reception room 2. Furthermore, preferably another air passage is connected to the exhaust lower. be done.

The waste room l is a cylindrical space with left and right symmetry, and the direction is from the edge to the center, that is, the axis A-A. It used to be wider. Ml and second walls 1o and 11 of the waste chamber 1 are axis A - It forms an angle α with respect to A. The angle α is 50'≦α and 90°, preferably The distance is 75°.

The processing unit is arranged inside the cylindrical casing 12. The casing 12 is Furthermore, it is surrounded by a heat insulator 13. Therefore, in the after-treatment process, the heat energy of the exhaust gas is Lugi can be especially used.

The smoke to be treated passes through one or more openings, i.e. nozzles, and is tangentially is introduced into room 1. According to the embodiment of the present invention shown in FIG. such as to be introduced via the inlet passage 14 in the housing 12 or the first intermediate space 15. The structure is as follows. The inlet passage 15 is in this case in the direction of the axis A-A, but It can be connected to the intermediate space 15 in any desired manner and angle. Intermediate space 15 and trash A first annular passage 16 is arranged between the chamber 1 and the passageways 16 spaced apart from each other. A baffle plate 17 is provided. These deflectors are arranged with respect to the vertical plane of axis A-A It is assembled so that the oblique angle β is optimally an acute angle.

When gas is introduced into the first intermediate space 15 through the inlet passage 14, the first and second In the direction of the arrow shown in the figure, that is, the axis! Move towards trash room 1 in the direction of A-A. . When the gas hits the deflector plate 17, it moves tangentially when it reaches the waste room 1 due to the deflector plate. The gas moves in the opposite direction, creating a gaseous waste flow.

Preferably, in addition to the first baffle plate 17 described above, another baffle plate connected to the waste chamber 1 is provided. 19 are provided and arranged in the annular passage 18 on opposite sides of the annular region of the waste chamber 1. Keishi Between the ring 12 and the waste chamber 1 there is an intermediate passage 20, which in this case is annular. Therefore, the gas flows out into another intermediate space 21 on the other side of the waste chamber 1 through the intermediate passage 2. 0 extends as a cylindrical extension in the direction of the axis A-A, so that the gas circulation The fit is effective and occurs through the rear part of the intermediate space 21.

The other deflecting slopes 19 correspond to the first deflecting slopes 17. 8. Perpendicular to axis A-A It is assembled at an oblique angle β to the surface. Angle β' coincides with angle β, i.e. β '=-β. As a result, the gas flowing out from the second intermediate space 21 to the waste chamber l is , $1 Move in the tangential direction in the same direction as the gas flowing out from the intermediate space 14 to find the optimal In some cases, there is almost no axial movement. At this time, smoke flows from the annular area to the middle. The waste flows toward the heart, that is, it moves in a circular motion, and its angular velocity is accelerated.

The first reaction chamber 2 is a long cylindrical space, the length of which is set according to the desired discharge. The resulting zero reaction chamber 2 has its first end connected to the exhaust port 3 of the waste chamber 1, i.e. into the wall 10. The other end of the reaction chamber 2, which is connected in the center along the axis A-A of the waste chamber, is closed. The first exhaust port 3 forming the mouth of the reaction chamber 2 is larger than the second exhaust port 5 in this way. With this configuration, the gas waste flow generated in the waste chamber 1 first flows into the reaction chamber 2. absorbs the air coming from the first air passage 4, and further rotates to heighten the entire reaction chamber 2. Fill with warm air-gas mixture, then the gas mixture is passed through the second outlet 5 to the second treatment removed to the unit.

The first reaction chamber 2 is a tubular or cylindrical space, but it can also be modified. toward the closed end You can also make the center wider than the A end, i.e. It can also be spherical or ellipsoidal. The gaseous scum kasuri moves in the longitudinal direction without any interference. In order to be able to move to reaction chamber 2, the reaction chamber must have a cylindrical shape that is symmetrical about the axis A-A. It is essential that

The first air passage 4 is arranged at the center axis of the first reaction chamber 2, similar to the axis A-A of the waste chamber 1. one or more inlets 23 of the passage are open to outside air or other suitable connected to a suitable air or oxygen source. Preferably the outlet opening of the air passage? 4 is , is arranged between the central part of the waste chamber 1 and the second exhaust port 5.

In addition, the air passage 4 is connected to the waste chamber 1 and the reaction chamber 2 by a method different from the method already shown. For example, from near the connection point of chambers 1 and 2 to axis A-A (the (see Figure 4), or into both the center of waste chamber 1 and reaction chamber 2. It is also possible to provide two outlet openings 24 which are open towards the same.

The total cross-sectional area of the annular passage 16,18 is usually the same as or less than the cross-sectional area of the second exhaust port 5. They are almost the same size. Due to this structure, smoke inside the waste chamber 1 and the first reaction chamber 2 The pressure of the gas in the waste stream flowing out from the exhaust port 5 is A low pressure base is formed in the direction of line A-A, so that additional air is sucked in from air passage 4. It will be done.

In the embodiment shown in FIG. 1, the second exhaust port 5 is provided in the intermediate chamber 6 and has a directly connected cylindrical It forms a space. Therefore.

By immediately advancing the waste stream of gas from the waste chamber 1 and the first mixing chamber 2, It is possible to maintain a sufficiently strong low pressure group in the axial direction, and also to provide sufficient pressure to the second processing unit. Additional air is supplied.

Also, preferably at or near the connection point between the wall 11 of the waste chamber 1 and the exhaust port 5. Place the annular edge on. At the same time, the edge of the intermediate chamber 6 extends from the wall of the waste chamber to the inside. The edge 25, which preferably extends a predetermined distance into the space, is e.g. The edge 25, which may be an extension of the chamber 6, prevents a direct connection between the wall of the chamber 1 and the chamber 6. There is. Therefore, before chambers 1 and 2 are filled with gas and a strong waste flow occurs there, , the first processing unit/) cannot escape from the smoke.

The exhaust chamber 7 is a symmetrical cylindrical space with conical outer walls 71 and inner walls 72. It is connected to the second reception chamber 8 by an original passageway 26. trash room The opening angle of the conical outer wall 71 is 75° to 30°.

Preferably it is 45°. The opening angle 6 of the inner wall is slightly smaller than the top of the cone, e.g. For example, it is 5° to 15° smaller. The effective cross-sectional area of the waste chamber 7 is toward the reaction chamber 8. is decreasing. The cross-sectional area of the exhaust port 5 and the intermediate chamber 6 is the same as the exit of the waste chamber or the passage 26. Same as or larger than the cross-sectional area of the opening.

Preferably, baffle plates 26a are provided within the annular passage 26 at intervals. In addition, the baffle plate is at an oblique angle with respect to the vertical plane of the axis A-A. The deflector is a passageway It is similar to the deflecting plates 17 and 19 installed at 16 and 18, and is preferably The angle is also the same as the angle β.

If the opening angle of the outer wall 71 of the exhaust chamber is of the above-mentioned size, the flow from the intermediate chamber 6 to the second reaction chamber 8, the gas waste stream widens and advances in a controlled manner. Because there is an inner wall 72 , the exhaust chamber 7 is a relatively narrow; A waste stream of gas is provided. Therefore, the intermediate chamber 6 and further the reaction chamber 2 Pressure returns to the low-pressure space, apparently throughout the after-treatment process of smoke and exhaust gas. For example, the increase or decrease in pressure caused by the engine is controlled by the exhaust chamber 7. facilitated by

The second reaction chamber 8 has a cylindrical shape with an axis connected to the main axis A-A of the after-treatment device. It is space. The exhaust chamber 7 is connected to the combustion chamber by an annular outlet opening, namely 26. The reaction chamber 8 is connected to an exhaust or corresponding outlet passage 27 . of the second reaction chamber 8 The length is preferably approximately the same as the first combustion chamber 2.

The second air passage 9 is connected to the apex of the conical inner wall 72 of the exhaust chamber 7 . child The air passage is provided with a conical shelter 28, and an empty space is provided in the center of the shelter 28. There is an air opening 29a. Further, the annular air passage 29 near the inner wall 72 extends to the exhaust chamber 7. It is growing. Therefore, sufficient air is supplied into the second reaction chamber 8.

The basic function of the smoke or exhaust gas after-treatment device according to the invention is as follows. smoke enters the inside of the casing 12 of the device along the entry O passage 14 into the Zl intermediate space 15. Ru.

When the pressure at the inlet increases, the smoke flows through the annular intermediate passage 20 to the second intermediate space 21. It then flows into the waste chamber 1 through annular passages 16 and 18. Passage 16 and 1 Due to the deflector plates 17 and 19 in 8, the gas trying to pass through the waste chamber 1 is directed in the tangential direction. At that time, the gas swirls in the direction D with acceleration toward the center of the waste chamber l. It begins to rotate in a diagonal pattern. First, the diameter of the first well chamber opening 3 is larger than the second wind chamber opening 5. At this point, the gaseous waste stream begins to flow towards the first reaction chamber 2. On the other hand, Ayabe 25 As a result, the chamber is partially filled with gas, and the gas begins to flow out into the first reaction chamber 2. The gas waste flow affects the potential axial interlocking along the waste chamber walls 11 until The only thing I can do is run away from Scum Room 1.

The gas accelerates the waste flow and is drawn along the mantle from the exhaust port 3 to the closed end of the reaction chamber 2. The waste flows from the waste chamber 1 to the first reaction chamber 2, and further flows into the second waste box below this first waste flow. come back as. However, the waste chamber 1 and reaction chamber 2 are almost full, and the second exhaust port 5 The foregoing is carried out until the vehicle advances from the point to the intermediate chamber 6. At the same time, due to the influence of centrifugal force , the low pressure field is the @ line A-A of the waste chamber 1 and the air passage 4 having its axis in the same direction. formed against the outer surface of the

Due to the pressure difference between the external air pressure, i.e. the pressure of the air or oxygen container, and the aforementioned low pressure field After receiving the color 1, the air moves axially through the air passage 4 and is sucked into the center of the waste flow. drawn and effectively mixed with the waste stream. The temperature of the smoke stream is mostly self- The temperature is high enough to ignite, especially when the gaseous waste flow moves and condenses in the first reaction chamber 2. When it does, it will fire at the same time.

As the waste stream of gas advances into the intermediate chamber 6, the openings 2 of the first air passage 4 and the second air passage Additional air is absorbed from the firepower with 9a and mixed into the center of the waste stream. gaseous waste advances along the outer wall 71 of the exhaust chamber and further passes through the annular passage 29 to the second air passage. 9. Aspirate air. The gaseous waste flow expands and passes through the exhaust chamber 7 and the annular passage 26, and then recurs. It moves to reception room 8, where the final combustion takes place. The products of combustion are transferred to the exhaust pipe or exit passage. 27 to the outside air.

The after-treatment device according to the invention is particularly suitable for removing carbon monoxide from smoke. The following reaction formula is known.

1. - Ordinary oxidation of carbon oxide 2 CO+ Ol-+ 2 CO□ 2. Water gas reaction CO+ H, O--CO2+ H2 Reactions between carbon monoxide molecules when catalyzing S, especially metallic iron 2CO-Co2+C The environmental conditions in the aftertreatment device beyond the central opening 3, in particular the temperature, may be one of the above-mentioned or Make it something that will cause more reactions than that. Gaseous waste with smoke rotating at high speed As you move forward through chambers 1, 2, 6 and 7 near the walls of each chamber, you will be directed there. It is noteworthy that air is absorbed from the air passages. gaseous waste Since the axial velocity of the flow is not large, for example, the length of the 1F reception room is such that the smoke does not flow into the processing equipment. are selected so that they remain relatively long. - Carbon oxide is optimized by the reaction described above. Almost completely disappears under certain conditions. Each chamber, especially when performing the function of a catalyst (reaction 3), Preferably made of steel.

FIG. 5 shows a second embodiment of the processing apparatus according to the present invention, the apparatus generally having the above-mentioned nine parts. The same parts are represented by the same reference numerals. The smoke to be treated is tangential. is introduced from the inlet passage 14a into the casing 12, that is, into the first intermediate space 15. It will be done. Therefore, the invading gas undergoes a scraping motion as it enters the processing device. intermediate space 1 5 is connected to the waste chamber 1 by one annular passage 16. The annular passage 16 also Preferably, a baffle plate 17 is provided.

The first reaction chamber 2 is a cylindrical space similar to the embodiment shown in FIG. At the end of the reaction chamber 2, which leads to the casing 12 of the device or to the outside thereof, there is a catalyst chamber 3. o is connected. This chamber is screwed onto the end of reaction chamber 2 for easy replacement. Preferably there are toxic gases, especially carbon oxides, nitrogen oxides and hydrocarbons. In order to remove the elements, a known catalyst is provided with a cover membrane 31 or with a replaceable filler in the catalyst chamber. used.

In addition, a pair of electrodes 32 are connected to each other in the catalyst chamber 30, and the potential difference between the two electrodes is If it is a known type, a spark discharge will occur between the two, and the smoke in the reaction chamber 2 will be ignited. It burns. This method is used when the smoke temperature is not high enough for some reason. Can self-ignite.

An alternating current source with a frequency of approximately 300) 1z is optionally connected to the pair of electrodes. The discharge between the two electrodes is caused by this alternating current power supply, for example, when decomposing nitrogen oxides. Ru. The catalyst chamber 30 can also be provided with a heat insulating layer 33. Operation completed for specified time Then, for example, when the catalyst loses its effectiveness or the electrode becomes chipped, the chamber 30 It should be noted that they can also be easily replaced.

The first air passage 4 is connected to the reaction chamber 2 in the embodiment shown in FIG. The two inlet openings 23 are connected to the outside air. In this example, the air passage 4 has two There is an outlet opening 24, the @l opening 24a is connected to the waste chamber 1 according to the embodiment shown in FIG. and the second exhaust port 5, and the second opening 24b is aligned with the axis t of the first reaction chamber. ! It opens in the A-A direction. Due to the low pressure field formed in the axis mA-A direction, additional air Air flows out into the first reaction chamber 2 through the second opening 24b.

On the other side of the waste chamber 1, that is, opposite to the first reaction chamber 2, there is a second processing unit, that is, an intermediate chamber. 6, an exhaust chamber 7 and a second reaction chamber 8. The second processing unit is similar to the embodiment of FIG. It is therefore configured. The conical shelter 28 of the second air passage 9 is now located in the center. No air openings are provided, but there is an annular air passage 29. if necessary , an air opening of this type may be provided in the center of the shelter 28.

Figure 6 shows another method of supplying catalyst to the first reaction chamber 2. 0 yen starting from the air hole 3, consisting of a conically expanding part 2a, and then a cylindrical space 2b The bottom portion 34 of the cylindrical space 2b is fixed relative to the end of the space 2b for easy replacement. A tubular part that is preferably screwed together or sealed with a simple coupling at 35 has a smaller diameter and is attached concentrically to the bottom 34 together with 1 reaction chamber 2. The tubular portion is at least partially filled with catalyst material, such as a cylindrical catalyst filler 36. be satisfied. This, together with the hole 37, is provided at least in part, especially near the bottom. There are n. These holes are of type 5 with respect to the direction of gas circulation with respect to the radial direction of the chamber 2. Preferably, it is oblique.

In the above-described embodiment of the invention, the gaseous waste stream passes from the waste chamber l through the first outlet 3; first into the annular external space 38 of the first reaction chamber 2 and then from there said opening of the catalyst packing. 37 and into a cylindrical interior space 39 . The advantage of this arrangement is that smoke and catalyst An effective interaction occurs between the material and the exchangeable catalyst filler.

@The structure of the catalyst charge can also be changed. 0 For example, by attaching a rod to the center of the bottom part 34 in the direction of the axis A-A, A disk, plate, or stack-shaped part that allows access to the middle part is made of the above-mentioned catalyst material. and are attached vertically to the rod at intervals of 2 mm. aforementioned All the fruits of! In particular, nickel, palladium, platinum or Or their alloys can be used.

The smoke treatment units according to the invention can also be combined in series and/or in parallel. . When coupled in series, two or more processing units can be coupled in series. It becomes. If each processing unit is exactly the same, or if the first processing unit If all processing units, except for knitting, lack the first reaction chamber 2, they can be connected in series. Can be combined.

In the absence of the first reaction chamber 2, gas is directly supplied from the waste chamber 1 to the exhaust chamber 7. parallel In the case of coupling, preferably identical processing units are coupled laterally or in parallel.

In the embodiment of the invention shown in FIGS. 7 and 8, a preferred example of parallel combination of post-processing devices is shown. It is. Two or more identical post-processing devices preferably treat the fault 8 layer 46. located within the same casing structure 40 provided.

A processing device 41 of this type is shown separately in FIG.

Casing 40. smoke inlet passage 42, first and second intermediate spaces 43,44 and A passage 45 connecting the rain spaces is common to the post-processing device 41.

Each processing device 41 is almost the same as that shown in FIG. The minutes are represented by the same symbols. Within the processing device 141, the second intermediate space 44 is It is connected to the waste chamber l by an annular passage 18 with a baffle plate 19. in this case , the first annular passage of the aftertreatment device of FIG. 5 (or FIG. 1) is closed.

When post-processing devices are coupled in parallel, each device can be balanced at the same time or one after the other. It becomes.

A function of the last-mentioned type is achieved by the pressure sensor 4 which is in contact with the intermediate space 43 or 44. 6. By providing a valve 47 installed in the outlet passage 27 of the processing device and a valve actuator. realizable. As shown in FIG. 7, one processing device 41 does not have a valve 47. Alternatively, the pressure sensor 46 and the valve actuator 48 are connected to a control unit 49 .

The above-mentioned side-by-side combined treatment device is connected to an exhaust manifold of an internal combustion engine. Eye When the engine rotates at low speeds, such as when driving, the amount of exhaust gas is minimal.

The pressure in the intermediate space 43, 44 of the aftertreatment device is such that one of the treatment devices 41 Because it can process more power, it doesn't get expensive and more power is extracted from the engine. and/or the engine rotates at high speed, which could occur with only one processing device 41. Since not all the exhaust gas is processed, the gas ψ increases and at the same time the amount of gas in the intermediate space increases. Pressure also increases. The pressure is measured by a sensor 46 and a control unit 49.

If the pressure is higher than a predetermined value, it is stored in the memory of the control unit 49. When this is detected, the actuator 48 receives a command from the control unit 49. The receiving valve 47 is opened. The exhaust gas is then transferred to a second treatment device coupled in parallel with the first treatment device. Flowing into the processing device, the pressure in the intermediate space 43,44 decreases. Similarly, When the pressure increases, the valves 47 of the third and fourth processing devices are opened one after another to release the gas. can be processed.

Although the present invention has first been described in relation to an internal combustion engine as described above, the invention relates to an internal combustion engine. It goes without saying that the device can also be applied to the treatment of waste gases or smoke from any process. do not have.

FIG. 2 FIG.3 FIG. 4 <1 Procedural amendment November 26, 1985 Mr. Michibe Uga, Commissioner of the Patent Office 1. Indication of incident PCT/FI851000192, title of invention Smoke, especially exhaust Gas processing device 3, person performing correction Relationship to the incident: Patent applicant Address: Nisev-00740 Helsin, Finland.

Kakunstentie 5 Knee 73 Name: Rahi 7 Riki, Vaifco Address〒100゜ 3-2-3 Marunouchi, Chiyoda-ku, Tokyo. Fuji Building Room 209 Telephone (213) 1561 (representative) 5. Subject of amendment (1) “Translation of the specification” (2) “Translation of the scope of claims” 6. Contents of the amendment: Translation of the separate specification and scope of claims = International communication report -N--^””””　”’　PCT/Fri15100019

Claims (10)

[Claims] 1. In a treatment device for smoke consisting of a smoke chamber (1), especially exhaust gas of an internal combustion engine, The gas to be treated is introduced in the tangential direction and spreads from the edges to the center. It has a symmetrical cylindrical shape and is connected to the air passage (4) in the axis (A-A) direction, and There is an opening in the center of the wall of the chamber through which a mixture of gas and air flows into the chamber (1 ). The processing device includes two processing units, the first processing unit being a bowl chamber (1). and; disposed on the axis (A-A) of the bowl chamber, and connected to the bowl chamber at the first exhaust port (3). a cylindrical first reaction chamber (2); preferably a bowl chamber (1) and a reaction chamber (2); ) and a first air passage (4) connected to the Located on the axis (A-A) of the chamber (1) and facing the first exhaust port (3) and the reaction chamber (2) a second exhaust port (5) in the bowl chamber (1); a cylindrical interior connected to the exhaust port (5) an intermediate chamber (8); a conical exhaust chamber (7) continuous from the intermediate chamber; and a cylindrical second chamber. A processing device characterized by comprising a reception room (8). 2. A processing unit is provided within the casing (12), preferably with insulation (13). ), and between the casing (12) and the processing unit there is an intermediate space ( 15). The gas to be treated is introduced there from the inlet passage (14), and further the intermediate space is Between the chamber (15) and the uzu chamber (1). at least one annular passage (16, 18 ) is provided, through which the gas can reach the chamber (1). The processing device according to claim 1, characterized in that 3. The first reaction chamber (2) is a long cylindrical space with a closed end. A processing device according to claim 1 or 2. 4. The annular edge (25) is connected to the second exhaust port (5) of the bowl chamber (1). Claims 1, 2, or 3, characterized in that: Processing equipment. 5. The exhaust chamber (7) is defined by a conical outer wall (71) and an inner wall (72). further connected to the annular passageway (28), i.e. opening into the second reaction chamber (8); The opening angle of the outer wall (71) of the exhaust chamber (7) is between 75° and 30°, preferably 45°, and the opening angle (α) of the inner wall is the same as or slightly smaller than the opening angle of the outer wall. Claims 1 to 4 characterized in that the size is smaller by, for example, 5° to 15°. The processing device according to any one of the preceding items. 6. In the annular passage (18, 18, 28). Deflectors (17, 19) is arranged, and the baffle plate is aligned with the vertical plane of the axis (A-A) of the bowl chamber (1). Claim 2 or 5, characterized in that it forms an oblique angle (β; β'). The processing device described in . 7. A second reaction passage (9) connects to the top of the conical inner wall (72) of the exhaust chamber (7) 6. The processing device according to claim 5, wherein: 8. A catalyst filler (36) or equivalent is provided in the first reaction chamber (2). Any one of claims 1 to 7, characterized in that: Processing device described in . 9. characterized in that the catalyst chamber (30) is connected to the end of the first reaction chamber (2). A processing device according to any one of claims 1 to 8. 10. A pair of electrodes (32) are connected to the first reaction chamber (2), and the electrodes are connected to a power source, Preferably, the claim 1 is connected to a high frequency AC power source. The processing device according to any one of items 1 to 9.