EP1120151A1 - Dispositif de mélange d'un gaz secondaire dans un gaz principal - Google Patents
Dispositif de mélange d'un gaz secondaire dans un gaz principal Download PDFInfo
- Publication number
- EP1120151A1 EP1120151A1 EP20000403601 EP00403601A EP1120151A1 EP 1120151 A1 EP1120151 A1 EP 1120151A1 EP 20000403601 EP20000403601 EP 20000403601 EP 00403601 A EP00403601 A EP 00403601A EP 1120151 A1 EP1120151 A1 EP 1120151A1
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- EP
- European Patent Office
- Prior art keywords
- injectors
- pipe
- injector
- gas
- flow
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/10—Mixing gases with gases
- B01F23/19—Mixing systems, i.e. flow charts or diagrams; Arrangements, e.g. comprising controlling means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/314—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit
- B01F25/3142—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit the conduit having a plurality of openings in the axial direction or in the circumferential direction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/314—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit
- B01F25/3142—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit the conduit having a plurality of openings in the axial direction or in the circumferential direction
- B01F25/31423—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit the conduit having a plurality of openings in the axial direction or in the circumferential direction with a plurality of perforations in the circumferential direction only and covering the whole circumference
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/0318—Processes
- Y10T137/0324—With control of flow by a condition or characteristic of a fluid
- Y10T137/0329—Mixing of plural fluids of diverse characteristics or conditions
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/0318—Processes
- Y10T137/0324—With control of flow by a condition or characteristic of a fluid
- Y10T137/0368—By speed of fluid
Definitions
- the subject of the present invention is a device and a method mixing an industrial gas in a main gas.
- the invention relates to a device and a process which allow mixing in adaptable proportions and with great homogeneity a mixture of a secondary gas especially industrial in a main gas, especially industrial.
- secondary gas or gas primary means not only a pure gas but also a gas premix eg air.
- gas premix eg air.
- jet mixers are used. This technique is described in particular in European patent application 0 474 524. It is used for over-oxygenation operations in FCCs, catalytic oxidations or in furnaces (in metallurgy or in the glass or cement industries). This very effective method is limited in the quantities of gas that can be mixed and in its flexibility. Indeed, the ratio between the injected flow or secondary flow and the main flow is generally limited to 10 to 15%. It is impossible to ensure optimal mixing conditions beyond a variation of ⁇ 20% around the nominal injected flow corresponding to the definition of the mixer for a constant primary gas flow.
- This type of injector is found in the synthesis process ethylene oxide (oxygen injection) or maleic anhydride (injection butane) among others.
- These mixers are not very flexible and bulky (presence of a large long bundle of small tubes) and do not use the turbulent nature of transverse jet mixers. Like the jets are coaxial, the mixture is mainly diffusional, which penalizes the performance of mixtures.
- Some devices also include speed control gases injected to allow it to retain its safety even in variable or non-stationary conditions.
- the modification mechanical the degree of opening of the orifices at the injection point is not easily achievable and requires great care in concerns the shutter mechanism which must work in a sometimes difficult atmosphere (oxygen, reactive gases) where it is better to limit hot spots due to repeated friction or mechanical wear.
- Some other devices also include means for ensure a constant content of one of the compounds of a mixture.
- Some devices also include means for ensure the consistency of one of the constituents which will be present downstream of the mixer, for example a product or excess reagent at the outlet a reactor mounted downstream of the mixer.
- An object of the present invention is to provide a method of gas mixture and a gas mixer which combine the advantages of flexibility and performance of static mixers with low dimensions and safety and performance characteristics of cross jet mixers.
- the homogeneity of the mixture is ensured due to the multiplicity of injectors and the fact that these injectors are controlled to operate within their optimum flow range.
- optimum flow range is meant all of the flow rates for which the secondary gas jet will mix so optima with a given main gas flow. This range can be expressed by a range of characteristic energy ratios volume kinetics.
- the axis of at least some of the injectors done, in the right section of the pipe which contains the injector openings, an angle a between 10 and 70 degrees, preferably between 25 and 45 degrees, from normal to the pipe wall.
- the mixing device is equipped with an obstacle which is arranged in the mixing zone of the conducted along the longitudinal axis thereof and preferably still the obstacle is connected to the pipe itself by fixing means which are capable of creating a disturbance in the main gas flow.
- the jets produced by the injectors have an angulation with respect to normal at the wall of the pipe since, due to the presence of the obstacle, the coalescence problems do not arise.
- FIGS. 1a and 1b a cylindrical pipe 10 has been shown in which the main gas flow circulates A.
- the pipe 10 defines a length of mixture or mixing zone L.
- the injectors are all arranged in the same cross section of the pipe.
- the injectors could be offset, along the axis of the pipe, while remaining in an injection zone whose length is much less than the length of the mixture.
- the mixing length can be 2, 3 or 4 times the diameter of the pipe.
- the injectors 12 are regularly arranged on the internal periphery of the pipe.
- the axes x, x 'of the injectors make, in projection on a plane of cross section of the pipe 10, an angle a with the normal N to the internal wall of the pipe.
- the angle a is between 10 and 70 degrees and preferably between 25 and 45 degrees.
- each jet is either contained in the transverse plane of the pipe containing the orifices of outlet of the injectors, or directed upstream of the pipe with respect to this plane by making an angle b with it (see figure 1B) in order to reduce mix length.
- FIG 2 there is shown the pipe portion 10 in which flows the main gas flow A and there is also shown schematically the injectors 12.
- a set of valves 14 this set of valves 14 as will be explained later being constituted by valves can be controlled automatically or manually to interrupt the supply of one of the injectors 12 or to supply some of these or all the injectors with a determined flow rate.
- the main pipe 16 for supplying secondary gas B, the secondary gas being distributed to each injector at through the set 14.
- a flow sensor 18 for measuring the main gas flow in line 10 as well as a set of control 20 of the valve device 14.
- the control assembly 20 is also connected to an information input interface 22, for example a keyboard, making it possible to enter the set 20, in particular the percentage of secondary gas in the final mixture.
- All command 20 is associated with a memory 24 in which are stored in particular control tables indicating the injectors to be supplied to obtain a given percentage of secondary gas as well as the flow which must be applied to injectors supplied.
- the circuits of the whole 20 from gas percentage information secondary and primary gas flow information, calculate flow secondary gas and determine from the tables in the memory 24 the injectors which must be supplied via the valve device 14, as well as the common flow to be received each of the injectors supplied.
- Total secondary gas flow can be controlled also from a setpoint which may not be the percentage of secondary gas in the main gas.
- This instruction can for example be deduced from a measurement carried out on operations downstream of the mixer. In this case, the ratio of the mixture produced by the mixer is not fixed, but it depends on a measure downstream of the mixer.
- valve assembly 14 we will describe a first embodiment of the valve assembly 14.
- the supply line 16 is divided into as many unit supply lines 30 as there are injectors 12.
- On each pipe 30 is mounted a controllable valve 32.
- the valves are controlled by all command 20 as previously explained.
- the valves 32 are ordered either all or nothing, or with an opening intermediate corresponding to a flow in the optimum flow range of the injector. This optimum flow depends on the characteristics of the injector, dimensions of the main gas flow and line so that obtain optimum energy for the jet produced by the injector.
- valve 32 is closed or valve 32 is controlled to the flow rate corresponding to the percentage of secondary gas to be injected. Of plus, all open valves are set to give the same flow supplying the corresponding injectors 12.
- valve assembly 14 This comprises a valve main regulation 40 on the general gas supply line secondary 16.
- the unitary pipes 30 are all equipped with a valve 32 controlled by all or nothing.
- the control assembly 20 controls the valves 32 in all or nothing as already indicated.
- this assembly controls the general valve 40 in such a way that it delivers the total flow D of secondary gas. This flow is distributed in the various pipes 30 associated with the unit valves 32 open.
- the injector consists of a bore 50 machined in the wall 52 of the pipe 10. This bore is extended by a sleeve 54 for connection to the supply line 30. In this case, opening the injector opens into the internal surface 10a of the pipe.
- the injector is constituted by a tubular element 56 engaged in a bore 58 of the wall 52 of the pipe 10.
- the opening of the injector 56a can protrude outside the internal wall 10a of the pipe 10.
- Another embodiment of the injectors consists in providing, inside the pipe 10, a closed toric pipe, the wall of which is pierced with orifices constituting the injectors.
- the pipe is divided by radial partitions in as many internal volumes as there are injectors.
- Figures 5a and 5b show a second mode of realization of the gas mixing device. This one uses the third embodiment of the injectors.
- line 10 has a double wall 60 which defines an annular space 61.
- the pipes supply 30 open into the annular space 61.
- Partitions radial 63 share the annular space 61 in several volumes injection 65, each volume 65 being supplied by a pipe 30.
- the internal wall 10 is pierced with orifices 67 constituting the injectors. Of preferably, there is an opening 67 per volume 65.
- the injectors 67 can all be arranged in the same cross section of line 10. This is shown in the Figures 5a and 5b. It is also possible to offset the injectors 67 along the axis XX 'of the pipe 10. There is then a gas injection zone secondary, this injection zone must be less than that of the mixing zone as defined above.
- a central obstacle 62 for example of general shape cylindrical (cylindrical, conical, frustoconical, etc.), which is arranged according to the axis X, X 'of the pipe 10.
- the equivalent diameter of the obstacle is between 10 and 30% of that of the pipe 10.
- the obstacle 62 is maintained by a radiating structure 64 which constitutes thus an element disrupting the main gas flow in the pipe 10.
- the axes of the injectors 12 are tilted. Indeed, the presence of an obstacle reduces the risk of coalescence of jets, especially opposing jets.
- the maximum number of injectors to be supplied is determined from as follows:
- the number of injectors to supply N1 is equal to N and the flow rate of each injector is D / N.
- the number N1 of injectors to be supplied is equal to k and the flow rate of each injector is equal to D / N.
- N1 k if N-k is divisible by k or if k is divisible by N-k.
- N1 the number immediately below k satisfying this condition.
- the embodiment of the mixing and setting device work of the mixing process described above, whatever its embodiment, in particular in a wide flow range secondary gas to continuously obtain all flow rates intermediates while ensuring a homogeneous mixture of secondary gas in the primary gas.
- the optimal arrangement for the mixture to be homogeneous is of course that the injectors supplied are angularly regularly spread over the entire flow range. For angular injectors regularly distributed, this requires that N be divisible by N1. According to different conditions of use, such a condition may not be fulfilled than for a secondary gas flow range.
- Figure 8 illustrates an arrangement of the injectors which allows complete symmetry of the injectors supplied regardless of the flow rate considered.
- the injectors identified by the numbers 1 to 12 are angularly offset by an angle at the center of 30 degrees.
- the injectors numbered 13 to 16 are offset from each other others at an angle to the center of 90 degrees.
- each injector in the second series was equidistant from two injectors surrounding it from the first series.
- One possible embodiment is to provide that the injector 13 is offset by 15 degrees with respect to the injector 2, that the injector 14 is offset by 15 degrees with respect to the injector 5 that the injector 15 is offset by 15 degrees relative to the injector 8 and finally that the injector 16 is offset by 15 degrees relative to the injector 11.
- Table I illustrates an example of application of the mixer defined above.
- the secondary gas flow rate can be varied continuously between 160 m 3 / h and 1440 m 3 / h while ensuring that each injector is supplied within its optimum operating range, that is to say - say in the case considered between 80 m 3 / h and 120 m 3 / h.
- the memory 24 associated with the control assembly 20 of the valves contains table 1.
- the set 20 from the flow information of primary gas determines the total secondary gas flow required and function of the position of this flow in relation to the different ranges of the table I determines which valves should be opened and the flow unit in each of these valves.
- FIG. 8 corresponds to a optimal realization which allows, as already indicated, a flow nominal secondary gas which can vary continuously by a factor from 1 to 6. It goes without saying that in the case where the secondary gas flow rates do not need to vary continuously but only around discrete values, it is of course possible to decrease the number of injectors. However, in this case, the mode of supply of the injectors is always the same, that is to say that either an injector is not supplied, either it is supplied with a flow rate included in its range of optimal functioning.
- all injectors have the same optimum flow rate range. In some cases, it might not be so. This could happen if all injectors do not have the same dimensions. This will also happen if the characteristics of the gas delivered by the injectors are not the same. These differences may lie in the nature of the gas injected which may not be the same for all injectors. They can reside in the temperature or pressure characteristics of the gas injected if this gas is supplied from different sources.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Accessories For Mixers (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
Description
- on forme une veine principale dudit gaz principal ;
- on règle le débit total de gaz secondaire à injecter en fonction d'une valeur de consigne ;
- on injecte dans une zone d'injection de ladite veine principale, ladite zone d'injection s'étendant selon la direction de l'axe de ladite veine principale, ledit débit total de gaz secondaire à l'aide d'une pluralité d'injecteurs disposés dans ladite zone d'injection pour former une pluralité de jets de gaz secondaire, chaque injecteur ayant une plage de débits optima ; et
- on répartit ledit gaz secondaire entre au moins une partie desdits injecteurs de telle manière que chaque injecteur alimenté fonctionne dans sa plage de débits optima.
- on divise dans l'ensemble des nombres entiers, le débit D par d1, ce qui donne un quotient entier k et un reste r,
- on compare le quotient k au nombre N d'injecteurs
- si k ≥ N on prend N1 = N
- si k < N on prend N1 = k
- une conduite (10) d'amenée du gaz principal, ladite conduite comportant une zone d'injection ;
- N (N ≥ 2) injecteurs (12) de gaz secondaire dont les ouvertures débouchent dans la zone d'injection de ladite conduite chaque injecteur ayant une plage de débits optima ; et
- des moyens pour répartir le débit total de gaz secondaire entre au moins certains desdits injecteurs pour que chaque injecteur soit alimenté avec un débit nul ou avec un débit compris dans la plage de débits optima dudit injecteur.
Débit Total | Orifices Actifs N1 | No. Des Orifices Actifs |
160-240 | 2 | 1, 7 |
240-360 | 3 | 1, 5, 9 |
320-480 | 4 | 1,4,7, 10 |
480-720 | 6 | 1, 3, 5, 7, 9, 11 |
640-960 | 8 | 1, 13, 4, 14, 7, 15, 10, 16 |
960-1440 | 12 | 1 à 12 |
Claims (25)
- Procédé pour mélanger un gaz secondaire avec un gaz principal, à l'aide d'injecteurs, comprenant les étapes suivantes :on forme une veine principale dudit gaz principal ;on règle le débit total de gaz secondaire à injecter en fonction d'une valeur de consigne ;on injecte dans une zone d'injection de ladite veine principale, ladite zone d'injection s'étendant selon la direction de l'axe de ladite veine principale, ledit débit total de gaz secondaire à l'aide d'une pluralité d'injecteurs disposés dans ladite zone d'injection pour former une pluralité de jets de gaz secondaire, chaque injecteur ayant une plage de débits optima ; eton répartit ledit gaz secondaire entre au moins une partie desdits injecteurs de telle manière que chaque injecteur alimenté fonctionne dans sa plage de débits optima.
- Procédé selon la revendication 1, caractérisé en ce que chaque injecteur a la même plage de débits optima.
- Procédé selon l'une quelconque des revendications 1 et 2, caractérisé en ce que lesdits injecteurs sont tous sensiblement disposés dans un même plan orthogonal à l'axe de ladite veine principale.
- Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que l'axe d'au moins certains des injecteurs (12) fait, dans la section droite de la veine de gaz principal qui contient les ouvertures des injecteurs, un angle a compris entre 10 et 70 degrés avec la normale à la paroi de la conduite.
- Procédé selon la revendication 4, caractérisé en ce que ledit angle a est compris entre 25 et 45 degrés.
- Procédé selon la revendication 1, caractérisé en ce qu'on dispose, de plus, un obstacle dans la zone de mélange de ladite veine de gaz principal selon l'axe longitudinal de ladite veine.
- Procédé selon la revendication 6, caractérisé en ce qu'on crée une perturbation de la veine de gaz principal dans la zone contenant ledit obstacle.
- Procédé selon l'une quelconque des revendications 1 à 7 pour pouvoir mélanger au gaz principal un débit D de gaz secondaire compris entre 2 d1, d1 étant la valeur minimale de la plage de débits optima des injecteurs, et Nd2, d2 étant la valeur maximale de la plage de débits optima des injecteurs, caractérisé en ce qu'on détermine le nombre maximal N1 d'injecteurs à alimenter de la manière suivante :on divise dans l'ensemble des nombres entiers, le débit D par d1, ce qui donne un quotient entier k et un reste r,on compare le quotient k au nombre N d'injecteurssi k ≥ N on prend N1 = Nsi k < N on prend N1 = k
- Procédé selon la revendication 8, dans lequel les N injecteurs sont angulairement régulièrement répartis, caractérisé en ce que, pour déterminer le nombre N1 d'injecteurs alimentés, on ajoute la condition que N - N1 soit divisible par N1 ou que N1 soit divisible par N - N1, de telle manière que les injecteurs alimentés soient diamétralement opposés deux à deux,et on choisit pour N1 le nombre k si N - k est divisible par k ou si k est divisible par N - kdans le cas contraire, on choisit pour N1 le nombre entier immédiatement inférieur à k satisfaisant à cette condition.
- Procédé selon la revendication 8, caractérisé en ce que les injecteurs sont angulairement régulièrement répartis et en ce qu'on choisit N1 de telle manière que N soit divisible par N1.
- Procédé selon la revendication 8, caractérisé en ce qu'on a choisi le nombre d'injecteurs N égal à 16, en ce qu'on répartit 12 des 16 injecteurs régulièrement avec un écart angulaire égal à 30 degrés et en ce qu'on répartit les 4 autres injecteurs à 90 degrés les uns des autres de telle manière que chacun des quatre injecteurs soit à égale distance angulaire de deux des douze premiers injecteurs, par quoi les injecteurs alimentés sont angulairement régulièrement répartis.
- Dispositif de mélange d'un gaz secondaire dans un gaz principal comprenant :une conduite (10) d'amenée du gaz principal, ladite conduite comportant une zone d'injection ;N (N ≥ 2) injecteurs (12) de gaz secondaire dont les ouvertures débouchent dans la zone d'injection de ladite conduite chaque injecteur ayant une plage de débits optima ; etdes moyens pour répartir le débit total de gaz secondaire entre au moins certains desdits injecteurs pour que chaque injecteur soit alimenté avec un débit nul ou avec un débit compris dans sa plage de débits optima dudit injecteur.
- Dispositif de mélange selon la revendication 12, caractérisé en ce que tous les injecteurs ont leurs ouvertures qui débouchent sensiblement dans une même section droite de la conduite.
- Dispositif de mélange selon l'une quelconque des revendications 12 et 13, caractérisé en ce que tous les injecteurs ont la même plage de débits optima.
- Dispositif de mélange selon l'une quelconque des revendications 12 à 14, caractérisé en ce que les moyens de répartition comprennent :des moyens par vanne (14) pour contrôler le débit de gaz secondaire dans lesdits injecteurs ; etdes moyens de commande (20) pour commander lesdits moyens par vanne (14) pour que chaque injecteur soit alimenté avec un débit nul ou avec un débit commun à tous les injecteurs alimentés, ledit débit commun étant compris dans la plage de débits optima.
- Dispositif de mélange selon l'une quelconque des revendications 12 à 15, caractérisé en ce que l'axe d'au moins certains des injecteurs (12) fait, dans la section droite de la conduite qui contient les ouvertures des injecteurs, un angle a compris entre 10 et 70 degrés avec la normale à la paroi de la conduite.
- , Dispositif de mélange selon la revendication 16, caractérisé en ce que ledit angle a est compris entre 25 et 45 degrés.
- Dispositif de mélange selon l'une quelconque des revendications 12 à 15, caractérisé en ce qu'il comprend, de plus, un obstacle (62) disposé dans la zone de mélange de ladite conduite (10) selon l'axe longitudinal de ladite conduite.
- Dispositif de mélange selon la revendication 18, caractérisé en ce qu'il comprend, en outre, des moyens de fixation (64) dudit obstacle (62) à la conduite, aptes à créer une perturbation du flux de gaz principal.
- Dispositif de mélange selon l'une quelconque des revendications 18 et 19, caractérisé en ce que les axes des injecteurs (12) sont sensiblement normaux à la paroi dans le plan de section droite qui contient les ouvertures des injecteurs.
- Dispositif de mélange selon l'une quelconque des revendications 16 à 20, caractérisé en ce que les axes des injecteurs (12) sont dans le plan de section droite contenant les ouvertures des injecteurs ou dirigés vers l'amont de ladite conduite par rapport audit plan.
- Dispositif de mélange selon la revendication 15, caractérisé en ce que lesdits moyens par vanne (14) comprennent N vannes (32) commandables par tout ou rien, chaque vanne étant associée à un injecteur et une vanne principale (40) apte à régler le débit d'alimentation total desdites vannes à N' fois un débit compris dans ladite plage de débits optima, N' étant le nombre des vannes non fermées.
- Dispositif de mélange selon la revendication 15, caractérisé en ce que lesdits moyens par vanne (14) comprennent N vannes (32), chaque vanne étant associée à un injecteur (12), chaque vanne étant commandable pour laisser passer un débit nul ou un débit compris dans ladite plage.
- Dispositif de mélange selon l'une quelconque des revendications 12 à 15, caractérisé en ce qu'il comprend N - 1 injecteurs (12) dont l'axe fait ledit angle a avec la normale à la paroi de la conduite et un injecteur dont l'axe est normal à la paroi de la conduite.
- Dispositif de mélange selon l'une quelconque des revendications 12 à 15, caractérisé en ce que le nombre N d'injecteurs (12) est égal à 16, et en ce que 12 des 16 injecteurs sont angulairement régulièrement répartis sur la périphérie de la conduite avec un écart angulaire égal à 30 degrés et en ce que les quatre autres injecteurs sont régulièrement angulairement répartis avec un écart angulaire égal à 90 degrés de telle manière que chacun des quatre injecteurs soit à égale distance angulaire de deux des douze premiers injecteurs.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0000945A FR2804045B1 (fr) | 2000-01-25 | 2000-01-25 | Dispositif de melange d'un gaz secondaire dans un gaz principal |
FR0000945 | 2000-01-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1120151A1 true EP1120151A1 (fr) | 2001-08-01 |
EP1120151B1 EP1120151B1 (fr) | 2003-09-17 |
Family
ID=8846296
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20000403601 Expired - Lifetime EP1120151B1 (fr) | 2000-01-25 | 2000-12-20 | Dispositif de mélange d'un gaz secondaire dans un gaz principal |
Country Status (7)
Country | Link |
---|---|
US (2) | US20010033526A1 (fr) |
EP (1) | EP1120151B1 (fr) |
CA (1) | CA2331940A1 (fr) |
DE (1) | DE60005290T2 (fr) |
ES (1) | ES2207474T3 (fr) |
FR (1) | FR2804045B1 (fr) |
ZA (1) | ZA200100692B (fr) |
Cited By (1)
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FR2833863B1 (fr) * | 2001-12-20 | 2004-08-20 | Air Liquide | Reacteur catalytique, installation et procede de reaction correspondants |
DE602004029648D1 (de) | 2003-01-21 | 2010-12-02 | Air Liquide | Verfahren und vorrichtung zur sauerstoffanreicherung in brennstoff fördernden gasen |
DE102006024038A1 (de) * | 2006-05-23 | 2007-11-29 | Forschungszentrum Jülich GmbH | Vorrichtung zur Herstellung eines Kraftstoff-Oxidationsmittel-Gemisches |
US8334395B2 (en) * | 2007-12-14 | 2012-12-18 | Dow Technology Investments Llc | Hydrocarbon/oxygen industrial gas mixer with coarse water droplet environment to reduce ignition potential |
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CA2701527C (fr) | 2007-12-14 | 2012-03-13 | Dow Technology Investments Llc | Lavage humide pour evacuer les solides particulaires d'une chaine d'alimentation en oxygene |
EP2237872B1 (fr) | 2007-12-14 | 2016-08-03 | Dow Technology Investments LLC | Mélangeur de gaz industriel hydrocabure/oxygène à un brouillard d'eau |
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CN113477107B (zh) * | 2021-04-29 | 2022-06-07 | 中冶长天国际工程有限责任公司 | 一种富氧点火用空氧混合器及其控制方法 |
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2000
- 2000-01-25 FR FR0000945A patent/FR2804045B1/fr not_active Expired - Fee Related
- 2000-12-20 DE DE2000605290 patent/DE60005290T2/de not_active Expired - Fee Related
- 2000-12-20 ES ES00403601T patent/ES2207474T3/es not_active Expired - Lifetime
- 2000-12-20 EP EP20000403601 patent/EP1120151B1/fr not_active Expired - Lifetime
-
2001
- 2001-01-16 US US09/759,266 patent/US20010033526A1/en not_active Abandoned
- 2001-01-22 CA CA 2331940 patent/CA2331940A1/fr not_active Abandoned
- 2001-01-24 ZA ZA200100692A patent/ZA200100692B/xx unknown
-
2002
- 2002-09-25 US US10/253,435 patent/US20030021182A1/en not_active Abandoned
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US3913617A (en) * | 1972-11-20 | 1975-10-21 | Hoogovens Ijmuiden Bv | Apparatus for mixing two gas flows |
US4521117A (en) * | 1983-02-17 | 1985-06-04 | Hoogovens Groep B.V. | Arrangement for mixing a gas into a main flow of a second gas |
US4474477A (en) * | 1983-06-24 | 1984-10-02 | Barrett, Haentjens & Co. | Mixing apparatus |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN111036103A (zh) * | 2019-12-27 | 2020-04-21 | 安徽海德化工科技有限公司 | 一种正丁烷与空气混合装置 |
Also Published As
Publication number | Publication date |
---|---|
CA2331940A1 (fr) | 2001-07-25 |
ZA200100692B (en) | 2001-07-27 |
US20030021182A1 (en) | 2003-01-30 |
ES2207474T3 (es) | 2004-06-01 |
FR2804045A1 (fr) | 2001-07-27 |
EP1120151B1 (fr) | 2003-09-17 |
US20010033526A1 (en) | 2001-10-25 |
FR2804045B1 (fr) | 2002-03-29 |
DE60005290T2 (de) | 2004-07-01 |
DE60005290D1 (de) | 2003-10-23 |
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