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EP1604731B1 - Mélangeur incluant une tête de mélange pour introduire des fluides dans la cavité de mélange du mélangeur. - Google Patents

Mélangeur incluant une tête de mélange pour introduire des fluides dans la cavité de mélange du mélangeur. Download PDF

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Publication number
EP1604731B1
EP1604731B1 EP05011802A EP05011802A EP1604731B1 EP 1604731 B1 EP1604731 B1 EP 1604731B1 EP 05011802 A EP05011802 A EP 05011802A EP 05011802 A EP05011802 A EP 05011802A EP 1604731 B1 EP1604731 B1 EP 1604731B1
Authority
EP
European Patent Office
Prior art keywords
mixer
accordance
flow
segments
axis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP05011802A
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German (de)
English (en)
Other versions
EP1604731A1 (fr
Inventor
Hermann Dr.-Ing. Hald
Markus Dipl.-Ing. Ortelt
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.)
Deutsches Zentrum fuer Luft und Raumfahrt eV
Original Assignee
Deutsches Zentrum fuer Luft und Raumfahrt eV
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Publication date
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Publication of EP1604731A1 publication Critical patent/EP1604731A1/fr
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Publication of EP1604731B1 publication Critical patent/EP1604731B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
    • B01F25/23—Mixing by intersecting jets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/313—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
    • B01F25/3132—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit by using two or more injector devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/313—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
    • B01F25/3132—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit by using two or more injector devices
    • B01F25/31324—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit by using two or more injector devices arranged concentrically
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/435—Mixing tubes composed of concentric tubular members

Definitions

  • the invention relates to a mixer comprising a mixing head for supplying media to the mixing chamber of the mixer.
  • Such mixing heads have the primary task of achieving optimum mixing of the components when feeding the media into the mixing chamber. This is achieved in the mixing heads known so far by mixing nozzles, via which the media to be mixed are supplied
  • the invention is therefore based on the object as simple as possible to form a mixing head for supplying the media to a mixing room.
  • the mixing head is constructed of at least two coaxial with an axis interlocking segments, that the at least two segments at least one distribution channel with an associated elongated outlet region for a stream of a first medium and at least a distribution channel with an associated elongate outlet region for a second medium flow limiting wall areas and that the elongated outlet region for the first medium and the elongated outlet region for the second medium are formed coaxially with each other and at least in an angular range of 360 ° around the axis.
  • the advantage of the solution according to the invention lies in the fact that this creates a favorable concept in that the media over at least two or more elongated outlet areas are supplied, so that the entire structure of the mixing head can be substantially simplified.
  • a transport of the media into the mixing chamber can be realized with little design effort, the media entering the distribution channel and flowing to the outlet regions still opening a favorable possibility for the temperature control of the segments and optionally of the media to be mixed.
  • the distribution channels can be carried out in a simple manner so that the media streams can be conducted as subsonic or transonic or supersonic or hypersonic media streams
  • Such a mixing head can be constructed particularly advantageously in that the segments have wall regions extending in the direction of the axis and bounding the distribution channels with the outlet regions and engage with these wall regions extending in the direction of the axis. This makes it possible to realize in a simple manner around the axis extending outlet areas, in particular more than two such outlet areas.
  • the at least one outlet region allows the flow of the first medium to escape with a component in the direction of the axis.
  • the at least one outlet region allows the flow of the first medium with a component in the direction away from the axis.
  • the at least one outlet region allows the flow of the first medium with a component in the direction of the axis exit.
  • the at least one outlet region allows the flow of the second medium with a component in the direction of the axis to escape.
  • the at least one outlet region allows the flow of the second medium with a component in the direction away from the axis.
  • a further embodiment provides that the at least one outlet region allows the flow of the second medium with a component in the direction of the axis exit.
  • a conceivable solution which is particularly advantageous if combustion is not to take place immediately following the outlet region, provides that the flow of the first medium and the flow of the second medium run without intersection, so that there is the possibility of this Mixture only at the greatest possible distance from the outlet areas to enter, which is particularly important for chemically reacting media of importance.
  • the distribution channels are closed around the axis formed circumferentially and thus at one point of a distribution channel, a supply of the respective medium can take place, which can then distribute particularly favorable over the closed around the axis circulating distribution channel.
  • the distribution channels are formed substantially at least 360 ° spirally around the axis circumferentially.
  • the outlet regions can be formed.
  • the outlet areas are each formed closed around the axis circumferentially.
  • the outlet areas are each formed by at least approximately 360 ° spirally around the axis.
  • a particularly favorable solution provides that cross-sections of the outlet areas are adjustable relative to each other by a mobility of at least parts of the segments.
  • Such mobility of the segments would be, for example, a relative rotation thereof about the axis.
  • Another possibility for the mobility of the segments for adjusting the cross-sectional areas of the outlet regions is a movement of the segments relative to one another in the direction of the axis.
  • the axis is a central axis of the mixing head.
  • the axis is a central axis of the mixing chamber.
  • the axis is an axis of symmetry with the same symmetry for each of the outlet regions, so that the streams emerging from the various outlet regions from the first and second medium always occur in the same symmetry and enter the mixing chamber in the same symmetry.
  • the elongated outlet areas may be formed as elongated slots.
  • the elongate outlet regions are formed by a multiplicity of outlet openings arranged along a path.
  • outlet regions are formed by a media-permeable material region arranged along a web.
  • Such a media-permeable material region can be formed by any type of material permeable to the respective medium.
  • the permeable material region may be formed, for example, by a material region with fine channels, a material region with pores, or a material region with any type of interstices between the particles.
  • an advantageous solution provides that the outlet areas can be close to a surface defining a mixing space.
  • outlet regions are located in an injector surface delimiting the mixing chamber.
  • the injector surface delimiting the mixing chamber can be a flat surface. However, it is particularly favorable if the injector surface delimiting the mixing chamber is a curved surface.
  • the injector surface delimiting the mixing chamber is a curved surface, in particular a concavely curved surface viewed from the mixing chamber.
  • the injector as a surface having different areas, such as concave, convex, planar or cylindrical areas that can be combined with each other in each constellation to form the injector.
  • the injector surface delimiting the mixing chamber is a dome-like curved surface.
  • a dome-like curved surface allows a particularly favorable conclusion of the mixing chamber with which it is advantageous to suppress Mischrauminstabilticianen.
  • an advantageous embodiment provides that the distribution channel is limited with the associated outlet region by two successively arranged segments, that is not so alone in a segment is provided, but is formed by the composite successive segments only in the form.
  • Such a structure of the segments enables a particularly simple manufacturability of the same.
  • At least one of the segments delimits the distribution channel on one side with one of its wall regions.
  • segment closest to the at least one segment delimits the distribution channel with one of its wall regions.
  • a structurally particularly favorable design of the distribution channel provides that the distribution channel is formed in a wall region of one of the segments.
  • the design of the outlet regions it is favorable if at least one of the segments delimits the outlet region on one side with one of its wall regions.
  • segment closest to the at least one segment delimits the outlet region with one of its wall regions.
  • each segment comprises a jacket body and that the segments engage with each other at least with partial sections of their jacket body in the direction of the axis.
  • Such a design of the segments enables a particularly simple and cost-effective production and thus a particularly simple and inexpensive construction of the mixing head with a particularly simple management of the media to the outlet areas.
  • the jacket bodies do not extend to the injector surface and thus also the outlet regions are spaced from the injector surface, so that a mixing of the media takes place even before reaching the injector surface.
  • jacket bodies extend as far as an injector surface of the mixing head.
  • the jacket body form the distribution channel and the outlet areas delimiting wall surfaces.
  • the structure of the sheath body is also determined by the course of the outlet areas. So it is particularly advantageous if the sheath bodies are designed as a closed body rotating around the axis.
  • Such about the axis rotating body may have any cross-sectional shapes.
  • polygonal, ellipsoidal, star-shaped or all other possible around an axis closed circulating body shapes are conceivable.
  • a particularly simple form provides that the jacket body have conically circumferential portions to the axis.
  • jacket body have cylindrical portions extending to the axis, wherein such cylindrical sections to the axis need not necessarily be formed in a circular cylindrical cross-section, but may also have elliptical, star-shaped or similar cross-sectional shapes.
  • sheath bodies extend spirally to the axis.
  • a mixing head according to the invention can be constructed by designing the segments differently.
  • the segments are made of identical starting bodies, so that starting from the identical starting bodies, these can be assembled to form the mixing head.
  • an editing of the segments after assembling the identical starting body has the advantage that in a particularly simple manner, the Injektor vom can be made with the desired precision.
  • a particularly advantageous exemplary embodiment provides that a connection between the segments which is impermeable to the respective medium takes place in a sealing region of the segments which is remote from the outlet region.
  • a connection between the segments which is impermeable to the respective medium takes place in a sealing region of the segments which is remote from the outlet region.
  • sealing region is arranged on the segments in an outlet region approximately opposite part of the segments.
  • an advantageous embodiment provides that the connection of the segments takes place in the sealing area by joining.
  • connection of the segments in the sealing region is dense by a sealing member for the respective medium.
  • the segments are formed in a manner advantageous for the respective medium dense structure which extends from the sealing region to the outlet, so that only by sealing the segments relative to each other in the sealing the desired guidance of the respective media of the respective distribution channel in the outlet takes place without further seals are necessary.
  • An advantageous embodiment of a solution according to the invention therefore provides that a mechanical fixation of the segments takes place relative to one another in a fixation region of the segments remote from the outlet region.
  • the fixing region is preferably arranged in a part of the segments which is approximately opposite the outlet region.
  • a supply of the respective medium takes place in a feed region of the distribution channel remote from the outlet region.
  • the supply area is close to the sealing area and / or fixing area, so that it is possible to keep the sealing area and / or the fixing area and in particular also the entire segments in a temperature range which is suitable for the functional capability of the same, in particular to cool it ,
  • a flow-determining element is arranged between the distribution channel and the outlet region.
  • such a flow-setting element distributes the flow substantially uniformly over the entire outlet region and, moreover, the mass flow discharged by the flow can be defined at a fixed pressure in the distribution channel with such a flow-setting element, and thus the relative mass flows of the media can also be determined with such a flow-setting element Set each other at a predetermined pressure in the respective distribution channel.
  • a particularly simple form of such a flow-determining element provides that this is as a flow cross-section for the flow of the respective medium reducing element.
  • such a flow-determining element is designed so that it has leading channels to the outlet.
  • such a flow-determining element has a flow-permeable structure in the direction of the outlet region.
  • this structure may be porous or of a material having interparticle channels or spaces.
  • the flow-determining element defines a flow direction of the flow of the respective medium.
  • the flow setting element not only serves to set the mass flow itself and set the most uniform mass flow over the entire outlet, but also to define the flow direction of the respective medium.
  • Such flow-determining elements have a particularly efficient effect if they are arranged between two successive jacket bodies and thus guide the medium flowing between these jacket bodies.
  • the flow setting elements extend as far as the injector surface.
  • an advantageous solution provides that the flow setting elements are made of a material permeable to the respective medium.
  • Such a permeable material for the respective medium is for example a porous material or a fine channels or spaces between particles material.
  • the flow-determining elements have openings.
  • Such apertures may be channels or bores provided in the flow setting elements.
  • the flow-determining elements themselves may be formed either of a solid body or of a porous body.
  • the flow-determining element for controlling a mass flow of the respective medium, it is also conceivable to form the flow-determining element as an elastic element, wherein the flow cross-section for the respective medium by deformation of the flow-setting element is adjustable.
  • a flow distribution element is provided between the distribution channel and the flow-determining element, which is able to compensate for the pressure drop occurring over the length of the distribution channel and thus the flow-setting element, the respective medium with a substantially constant over the extent thereof To provide pressure.
  • Such a flow-determining element can also be a solid body with bores or channels, which are adaptable in terms of their cross-section to the pressure conditions, which must be compensated.
  • an advantageous solution provides that the segments are in their adjacent to the outlet portions of a machinable material.
  • Such a structure of the segments makes it possible to determine the shape of the injector each by machining and thus adapt the shape of the injector to the conditions of the combustion chamber and the type of combustion in the mixing chamber. This can be taken in a particularly simple manner flow instabilities influence.
  • the flow setting elements are made of a machinable material, so that the unit of the segments and the flow setting elements as a whole is machinable and thus the entire injector can be formed by machining in a simple manner.
  • a machinable material can be made of a variety of materials. Such materials may be ceramic materials, metals, foamed materials or mixed materials.
  • machinable material is a carbon or oxide fiber composite, as carbon or oxide fiber composites are light in weight, temperature resistant, and easily machined.
  • the mixing chamber can be completely outside the mixing head.
  • the mixing space extends at least partially into the mixing head.
  • a first illustrated in Fig. 1 embodiment of a mixing head according to the invention, designated as a whole with 10 is placed on a mixing chamber housing 12, and forms with an injector 14 a conclusion of a mixing chamber 16, so that from the injector 14 escaping media in the mixing chamber 16th mix and propagate in a direction 18 to an outlet, not shown in the drawing, of the mixing chamber 16.
  • the mixing chamber housing 12 for example, a the mixing head 10 facing the end opening 20, to which at the opening 20 having an end portion 22 of the mixing chamber housing 12 mounted mixing head 10 extending into the mixing head 10 and at least a portion of the mixing chamber 16 receiving recess 24 with the dome-like in the mixing head 10 hineinersummenden injector 14 adjoins, so that a total of the mixing chamber 16 extends both in the mixing chamber housing 12 and in the mixing head 10 inside.
  • the recess 24 in such a way that it receives the entire mixing chamber 16 and the mixing chamber housing 12 has only the outlet.
  • the outlet from the mixing head 10 could also be included in the extreme case.
  • the mixing head 10 is formed of, for example, four segments 30a, 30b, 30c and 30d and a closure body 32, which are held together by a holding device 34.
  • the segments 30a to 30d and the closure body 32 are arranged coaxially to a central axis 36 and engage in the direction of the central axis 36 into one another.
  • the segments 30a to 30d are formed from identical starting bodies and comprise an outer ring body 40 with an outer ring 42 extending cylindrically with respect to the central axis 36 and a ring bottom 44 extending transversely to the central axis 36, which extends into a starting from the Ring bottom 44 extends in the direction of the central axis 36 extending sheath body 46, which increases with a conical portion 47 of an integrally formed on the ring bottom 44 foot area 48 Extension extends in the direction of the central axis 36 and thereby tapers.
  • the jacket body 46 lies on a side facing away from the outer ring 42 of the annular bottom 44 and extends away from the latter opposite to the extension of the outer ring 42nd
  • the jacket body 46 comprises an inner surface 50 facing the central axis 36 and an outer surface 52 facing away from the central axis 36, wherein the inner surface 50 and the outer surface 52 preferably extend parallel to one another and conically with respect to the central axis 36.
  • each of the segments 30a to 30d is formed identically and arranged coaxially with the central axis 36. For this reason, the segments 30a to 30d may be assembled so that the various sheath bodies 46a to 46d intermesh with the inner surface 50a of the sheath body 46a of the segment 30a facing the outer surface 52b of the sheath body 46b of the next segment 30b, etc.
  • FIGS Segments 30a to 30d can be assembled such that on a side facing away from the jacket body 46 end face 54 of the respective annular body 40, for example, on the front side 54a, each of the nearest ring body 40, for example, the ring body 40b, with its bottom 56, for example, the bottom 56b, is seated and with the end face 54 is tightly connected, so that a sealing portion 55 of the segments 30 is formed.
  • Such a tight connection in the region of the end faces 54 and the undersides 56 can be achieved by inserting a seal or attaching sealing material, provided that the segments 30 are to be detachably connected to one another.
  • a tight connection in the sealing region 55 can also be combined with the mechanically fixed connection of the segments 30 in a fixing region 57, which at the same time constitutes the sealing region 55, if a joining, that is, for example welding, soldering or gluing the segments 30 in FIG Area of the end faces 54 and the lower sides 56 takes place.
  • sheath body 46 of this next segment for example of the segment 30b, extending parallel but spaced from the sheath body 46 of the preceding segment, for example the segment 30a, leaving a gap between both sheath bodies 46a, 46b, as in FIG Fig. 3 again exemplified.
  • each of the segments 30a to 30d is provided with a step 58, for example the step 58b, which upon insertion of this segment 30, for example of the segment 30b, into the preceding segment 30, for example the Segment 30a, the outer ring 42 in the region of its inside, for example, the inside 60a, engages behind and thus leads to a positive centering of the segments 30 relative to each other.
  • Each of the ring body 40 defines with the outer ring 42 and the ring bottom 44 a distribution channel 62, which lies closed in a plane perpendicular to the central axis 36 extending plane 64 and which has a feed region 65, which via a supply port 66, a medium or oxidizer can be fed.
  • the distribution channel 62 is open on a side facing away from the jacket body 46 and is at two successive segments 30 are closed by the annular bottom 44 of the next segment 30 on a side opposite the ring bottom 44 own side.
  • the distribution channel 62 is enclosed and bounded on its radially outer axis to the central axis 36 by the outer ring 42 and bounded on its inner side by the shell body 46, for example, the shell body 46b of the next segment.
  • a medium supplied via the supply opening 66 can circulate circumferentially around the central axis 36 in the distribution channel 62, but only escape from the distribution channel 62 via a gap 74, through which it passes between the inner surface 50 of the respective segment 30, for example the Segment 30a belonging sheath body 46, for example, the sheath body 46a, and the outer surface 52 of the sheath body 46, for example, the sheath body 46b, the next segment 30, for example of the segment 30b, with a component in the direction of the central axis 36 of the mixing chamber 16 flows, wherein In this case, as shown in Fig. 1, the medium from an outlet region 70 in the form of a stream 72, emerges in the direction of the central axis 36 in the mixing chamber 16 flowing.
  • the outlet region 70 preferably extends in a closed manner around the central axis 36 and lies in the injector surface 14, which delimits the mixing chamber 16, so that a stream 72 enclosing the central axis 36 is also formed.
  • a flow-determining element 80 is used, which extends from the gap 74 bounding the inner surface 50 to the intermediate space 74 also delimiting outer surface 52 and is made of porous material or of dense material with Duchlrawkanälen which, as shown in Fig. 2, when assembling the segments 30a to 30d between two successive sheath body 46, for example, the sheath body 46a and 46b, is used.
  • the flow-determining element 80 is in this case formed so that it abuts each of the inner side 30 and the outer surface 52 of the successive sheath body 46 and arranged so that an end face 82 thereof is in the outlet region and thus also in the Injektor configuration 14, wherein when forming the flow-setting element 80th from a porous material in the end face 82 are pores, from which then the respective medium in the form of the stream 72 emerges.
  • the end face 82 of the flow setting element 80 thus extends around the central axis 36 and lies substantially completely in the injector surface 14, on both sides of the end face 82 of the flow setting element 80 end faces 84, for example, the end faces 84a of the first segment 30a and 84b of the second segment 30b also lie in the injector 14 and thus limit the end faces 84a and 84b of the shell body 46a and 46b of the segments 30a and 30b, the outlet portion 70 on both sides.
  • the course of the injector surface 14 is determined by the end faces 84 of the jacket body 46 together with the lying between these end face 82 of the respective flow setting element.
  • the flow-setting element 80 lying in the intermediate space 74 has the task of releasing the medium distributed around the central axis 36 via the distribution channel 62 with a predeterminable mass flow around the center axis 36, so that essentially in each section of the distribution channel 62 associated outlet region 70 approximately the same predetermined mass flow of the respective medium in the distribution channel 62 exits, so that altogether from each of the outlet regions 70 around the central axis 36 approximately identically and with respect to the entrained mass per unit time determinable flows 72 in the direction of the central axis 36 out.
  • the flow-determining element 80 thus represents a throttling of the available flow cross-section running around the central axis 36.
  • the stream emerging from the outlet region 70a constitutes a stream 72a whose mass flow is determined by the porosity or permeability of the flow setting element 80.
  • the stream 72b which is directed approximately in the same direction as the stream 72a, issues from the outlet region 70b.
  • the two streams namely the stream 72a and the stream 72b, thus emerge side by side from the injector surface 14, mix and mix in the mixing chamber 16.
  • one medium and the distribution channel 62d can supply the other medium to the distribution channel 62c, so that a stream 72c and a stream 72d also emerge from the outlet regions 70c and 70d, and mix in the mixing chamber 16.
  • the streams 72a and 72c and the streams 72b and 72d also circulate circumferentially around the central axis 36 out of the injector surface 14 and all intermesh so that mixing can take place in the mixing chamber16.
  • the segments 30a to 30d are advantageously tempered by the media flowing therethrough, wherein, depending on the medium used, the segments 30a to 30d can be heated or cooled by the media.
  • the construction of the mixing head 10 is carried out by nesting identically formed segments 30a to 30d with the flow-determining elements 80a to 80d therebetween and subsequently shaping the same, for example by a machining process, which results in the Sheath bodies 46a to 46d and the flow-determining elements 80a to 80d are removed to varying degrees in the region of their end faces 84 and 82 be, so that in total then the recess 24 with the injector for the surface 14 and optionally in the mixing head 10 lying part of the mixing chamber 16 desired shape can be generated.
  • a fixed fixation of the flow setting elements 80a to 80d to the sheath bodies 46a to 46d and a fixation of the segments 30a to 30d relative to each other for example by connecting them together in the Area of the outer rings 42, preferably the end faces 54 and the lower sides 56 of the outer rings 42nd
  • the segments 30a to 30d connected to one another can then be placed on a flange surface 92 of the mixing chamber housing 12, with the underside 56a of the outer ring 42a and by the holding device 34, which acts on a closure plate 94 of the closure body 32 and in the mixing chamber housing 12 screwed clamping screws 96 includes, which clamp the mixing head 10 against the mixing chamber housing 12.
  • the end plate 94 rests on the end face 54d of the outer ring 42d and covers its distribution channel 62d on a side opposite the ring bottom 44d. Furthermore, the closure body 32 also bounded with an outer surface 98 of its conical portion 100 the distribution channel 62d and abuts with this also on the flow setting element 80d, so that this between the outer surface 98 of the conical portion 100 of the closure body 32 and the inner surface 50d of the shell body 46d lies.
  • the closure body 32 extends with its conical portion 100 further to the injector 14 and forms with an end face 102 an inner portion of the Injektor formula 14. Further, the closure body 32 is still provided with a central opening 104, through which an injector 106 can be inserted into this up to the Injektor configuration 14 to offset the exiting from the injector 14 streams 72a and 72c and 72b and 72d flows in the mixing chamber 16 nor with a catalyst or another mixture component ,
  • the segments 30a to 30d and also the closure body 32 are preferably made of a temperature-resistant material, such as metal or ceramic or a fiber-containing material, however, which is formed for the respective media substantially gas-tight.
  • a temperature-resistant fibers for example carbon fibers
  • comprehensive material for the segments 30 and the closure body 32 is, for example, in the Research Report 2001-17 German Aerospace Center, entitled: "Fiber ceramics for hot structures of reentry vehicles -Simulation, Test and Comparison with Experimental Flight Data ", author: Hermann Hald, Institute for Construction Design and Construction, ISSN 1434-8454.
  • the sheath bodies 46 of the segments 30 produce a heat exchange and thus a heat balance between the guided in the adjacent interstices 74 media or prevent heat exchange between the guided in adjacent spaces media.
  • the material for producing the segments 30 and the closure body 32 is preferably a thermal expansion neutral material in order to maintain the geometric relationships and the tightness between the individual parts even under thermal gradients and thermal cycling.
  • the flow setting elements 80a to 80d are made of a temperature-resistant media-permeable, for example, porous material.
  • the porous materials are preferably heat-expansion compatible at least with the materials of the segments 30 so that there are no thermal problems with temperature gradients or thermal cycling.
  • braided materials or felts of fiber materials, metal oxides, foamed materials or ceramics, such as sintered ceramics or sintered metals, are suitable as materials.
  • Such suitable materials are fiber ceramics of C / C, C / SiC, SiC / SiC or Al 2 O 3
  • a mixing head 10 2 shown in Figs. 5 and 6, those elements which are identical to those of the first embodiment, but with the same reference numerals are provided with index 2, so that with respect to the description of these elements in full Embodiments of the first embodiment can be made reference.
  • the segments 30a 2 to 30f 2 are not formed identically, but have a different shape, but each of these segments 30a 2 to 30f 2 has a ring body 40 2 , from which starting the shell body 46 2 with the conical section 47 2 extends in the direction of the central axis 36. 2
  • the tapered portions 47 2 of the casing body 46 2 close to the respective annular shelves 44 2 from segment 30 to segment 30 different angle, the angle between the two until the segment 30f 2 are progressively smaller starting from the segment 30a. 2
  • the conical sections 47 2 of the jacket bodies 46 2 do not run parallel to one another, but at least partially antiparallel to each other.
  • the flow setting elements 80 2 are adapted, each in the same manner as in the first embodiment between the conical sections 47 2 of the shell body 46 2 2 successive segments 30 2 lie.
  • the ring body 40 2 are formed such that they not only the ring bottom 44 2 and the outer ring 42 2 , but a ring bottom 44 2 opposite and integrally formed on the outer ring 42 2 annular flange 114, on then the next following ring body 42 2 rests.
  • the distribution channels 62 2 is not the next succeeding annular body 40 2 and the next following casing body 46 2 thus are open, but only in the direction of the next casing body 46 2, which cooperates with the casing body 46 2 of the respective segment 30 2 to the Interspace 74 2 to form, through which the one medium or the other medium in the direction of the respective outlet region 70 2 flow.
  • a flow distributor 116 is provided between the distribution channel 62 2 and the respective flow setting element 80 2 , which serves to optimize the distribution of the distribution channel 62 2 supplied medium via this distribution channel 62 2 , to a substantially uniform distribution of the medium to reach around the central axis 36 before the medium enters the flow setting element 80 2 .
  • the flow distributor 116 also serves to pre-flow set before the flow setting element.
  • the holding means 34 2 in the second embodiment comprises an outer shell 118 and a held on the outer casing 118 lower support ring 120 on which the first segment 30a 2 rests with the annular bottom 44a 2, wherein the outer casing 118 to the support ring by a clamping connection 122 is connected tensile strength.
  • a pressure ring 124 of the holding device 34 2 is provided, with which the closure body 32 is acted upon, which in turn acts on the annular flange 114f of the last segment 30f 2 .
  • the pressure ring 124 is fixedly connected to the outer shell 118 by a clamping connection 126.
  • a mixing head 10 3 of the invention only schematized shown in Fig. 7, the segments 30a 3 and 30b 3 and the closure body 32 3 is arranged so that from the discharge zones 70a 3 and 70b 3 exiting streams 72a 3 and 72b 3 in the direction of the center axis 36 are directed away and thus spread in the direction of an outer wall 130 of the mixing chamber 16, so that the mixing of the media takes place near the outer wall 130 of the mixing chamber 16.
  • the segments 30a 3 and 30b 3 are formed only by the conical portions 47a 3 and 47b 3 of the sheath bodies 46a 3 and 46b 3 .
  • the associated annular body 40 are not shown here, since only the illustration of the supply of media to the mixing chamber to be displayed.
  • the annular body 40 are formed, for example, similar to the first embodiment and close to the foot portions 48 at.
  • a fourth embodiment shown in Fig. 8 is based on the concept of the third embodiment, wherein the segments 30a 4 and 30b 4 have not only the conical portions 47a 4 and 47b 4 of the sheath bodies 46a 4 and 46b 4 , but subsequent thereto extending cylindrical portions 136a and 136b of the sheath bodies 46a 4 and 46b 4 .
  • the streams 72 a 4 and 72 b 4 are directed away from the central axis 36 in the direction of the outer wall 130 of the mixing space 16.
  • the segments 30a 4 and 30b 4 are interconnected in the region of their cylindrical portions 136a and 136b.
  • the segments 30a 4 and 30b 4 are connected via the holding device 34 4 with the closure body 32 4 , wherein the holding means 34 4, for example, on the segment 30a 4 engages and on the closure body 32 4 and the segment 30b 4 on the one hand via the end flange 139 against the segment 30a 4 is fixed, and on the end flange 139b at the terminal body 32, 4 is fixed.
  • a fifth embodiment illustrated in Fig. 9 includes the covering body 46a 5 in the same manner as in the fourth embodiment, the conical portion 47a 5 and the cylindrical portion 140a 5, wherein the cylindrical portion 140a 5 leads to the outlet portion 70a 5 and this limited. Further, the sheath body 46b 5 is provided with the cylindrical portion 140b 5 and a conical portion 47b 5 , wherein also the cylindrical portion 140b 5 to the outlet portion 70b 5 leads.
  • the segments 30a 6 and 30b 6 are formed to generate streams 72a 6 and 72b 6 which flow toward the central axis 36, while further segments 30d 6 and 30e 6 are designed in principle to provide streams 72d 6 and 72e 6 directed away from the central axis 36 so that the currents 72a 6 and 72b 6 as well as the currents 72d 6 and 72e 6 intersect.
  • the streams 72a 6 and 72b 6 carry one medium and the streams 72d e and 72e 6 the other medium.
  • the segments 30d 6, 30e 6 and the sealing body 32 6 are connected in the same manner with each other, as discussed for example in connection with the fourth embodiment shown in FIG. 8, while the segments 30a 6 30b 6 and 30c 6 are connected together in a manner which, for example, corresponds to the manner set forth in connection with the first embodiment.
  • a seventh exemplary embodiment illustrated in FIG. 11, it is likewise possible to generate intersecting streams of media, namely on the one hand the streams 72a 7 and 72b 7 and on the other hand 72c 7 and 72d 7 .
  • outlet portions 70a 7 and 70 b 7 are located in this embodiment on a portion 14a 7 of the injector face 14 7, which is formed convex, whereas the outlet portions 70c 7 and 70d 7 lie on a portion 14 b 7 of the injector face 14 7, which is concave so that in this case the injector surface 14 7 is a total of one of a convex portion 14 a 7 and a concave portion 14 b 7 composed injector.
  • the segments 30a 8, provided with disc-shaped portions 142a, 142b and 142c 30b 8 and 30c 8 which have outlet portions 70a 8 and 70b 8, directed to the central axis 36 8 radially outwardly are so that also the exiting streams 72a 8 and 72b 8 spread substantially in the radial direction transverse to the central axis 36 8 .
  • the eighth embodiment corresponds to the arrangement of the cylindrical portions 140a 8 , 140b 8 and 140c 8 in principle the fourth embodiment of FIG. 8, but with the difference that take the place of the conical portions 47, the disc-shaped portions 142 and thus the exiting flows 72a 8 and 72b 8 are substantially radial to the central axis 36 8 .
  • cylindrical portions 140 a 8 to 140 c 8 are connected to each other in the same manner, as has been explained for example in connection with the fourth embodiment.
  • a ninth embodiment shown in Fig. 13, based on the basic principle in the fourth embodiment, with the difference that now the exiting streams 72 9 have an angle with the central axis 36 9 , which is smaller than 90 ° (Fig. 13) ,
  • cylindrical portions 140a 9 and 140b 9 are connected to each other in a similar manner as explained in connection with the fourth embodiment.
  • the segments 30a 10 and 30b 10 serve to generate streams 72a 10 and 72b 10 , which are directed approximately parallel to the central axis 36 10 and thus approximately parallel to the outer wall 130 10 enter the mixing chamber 16 10 .
  • Fig. 15 corresponds to the structural design of the mixing head according to the first embodiment, shown in Fig. 1 to 4.
  • the flow setting member 80 In connection with the formation of the flow setting member 80, it has been explained in the first embodiment that it should be formed of porous material.
  • the flow-setting member 80 11 is formed of fibrous material, the orientation of the fibers being defined by sheets 143 of sheet material made of such fibers.
  • the layers 143 of the sheet extend in the eleventh embodiment, for example, parallel to an outer side 144 and an inner side 146 of the flow setting member 80 11 and around the central axis 36 11 , wherein in the layers 143 of the sheet material in the simplest case are approximately perpendicular to each other, that is in that the first fibers are circumferentially aligned about the central axis 36 11 with a first orientation direction 152 and the second fibers extend with a second orientation direction 154 in a plane group passing through the central axis 36 11 and at an angle to the central axis 36 11 .
  • a twelfth exemplary embodiment, illustrated in FIG. 16, is likewise based on the structural concept of the first exemplary embodiment according to FIGS. 1 to 4.
  • the individual layers 143 'of the fibrous material sheet are oriented so that they are parallel to planes passing through the central axis 36 12 and thus extend in an approximately radial direction to the central axis 36 12 .
  • the fibers travel in the first direction 152 'transversely to the outside 144 and the inside 146 and in the second direction 154' at an angle to the central axis 36 or parallel to the central axis.
  • the twelfth embodiment may preferably be made of individual sectors 150 successive in a circumferential direction 148, which are machined from a plate material, the layers 143 'being approximately parallel to plate surfaces.
  • the layers 143 "of the fiber material sheet extend in perpendicular to the central axis 36 13 directed planes, so that the fibers in both the first direction 152 "and the second direction 154" are each aligned transversely to the central axis 36 13 .
  • the production of the segments 30 from raw bodies with woven fabrics, UD-layers, rovings or semi-finished products, which are bonded together by suitable binders, for example resins, is preferably carried out.
  • the segments 30a 14 and 30b 14 are constructed entirely of a porous body 160, which, however, on one side, for example, the outer surface 52 14 forming side 162, is compressed so that it the respective medium is impermeable.
  • the tightness can also be ensured by a coating.
  • the impermeable side 162 extends in each case along the jacket body 46 14 and also on an outer side of the annular body 40 14 to the end face 54 14 of the same, so that when assembling the segments 30 14, the respective medium can be out tightly sealed.
  • distribution channels 62a 14 and 62b 14 are still separated from each other since the next porous body 160, again at its side 162, is impermeable to the respective medium.
  • the flow-determining element 80 15 is formed as a solid or porous body, are passed through the holes 164 through which the respective medium can pass, the bores 164 to a cross-section reduction and, to compensate for Lead flow and allow a specification of the exiting mass flow.
  • the flow setting members 80 15 are insertable between the segments 30 in the same manner as in the first embodiment.
  • the flow setting member 80 16 is formed to have milled-in channels 168 on one side thereof in a solid or porous body thereof, which are open on one side and covered by a next-following segment 30.
  • the holes 164 or channels 168 according to the thirteenth or fourteenth embodiment not only have the advantage that can be defined by the cross section of the passing mass flow in a simple manner, but also the advantage that the flow direction of the exiting stream 72 can set better.
  • the segments 30a 17 and 30b 17 are formed in the same manner as in the second embodiment.
  • the outer rings 42a 17 and 42b 17 are formed of elastic material, so that the possibility exists by means of an adjusting device 170, which acts for example on the shell body 46a 17 , the shell body 46a 17 to move in the direction of the central axis 36 17th and, for example, thereby to move in the direction of the sheath body 46b 17 , so that a cross-sectional area of the outlet areas 70a 17 and 17b 17 is variably adjustable and thus the mass flow exiting therefrom is adjustable.
  • the outer rings 42a 17 and 42b 17 of a bellows which may be made of metal, and thus in the direction of the central axis 36 17 slidably.
  • outer rings 42a 17 and 42b, 17 is connected by a joint connection in the fixing portion 57 to each other 17, said fixing portion 57 17 simultaneously 55 17 illustrating the sealing region between the two segments 30a and 30b 17 17th
  • outer rings 42a 18 and 42b 18 are formed in the same way.
  • annular seal 172 is provided at the eighteenth embodiment in the sealing region 55 18 which 30a 18 and 30b, 18 against each other to seal the segments, the segments are not illustrated, for example, by a 30a 18 and 30b 18 external retaining device 34 are clamped together, to obtain the necessary surface pressure around area of the ring seal 172.
  • the distance between adjacent shell bodies, for example, the shell bodies 46a 19 and 46b 19 vary in that one of the shell body, for example, the shell body 46b 19 relative to the shell body 46a 19 in the direction of Central axis 36 19 is displaceable, so that a distance A between the shell bodies 46a 19 and 46b 19 reduce to a distance A ' leaves, as long as the sheath body 46b 19 is further pushed from its in Fig. 20 shown solid position in the direction of the central axis 36 19 in the shell body 46a 19 and thus the distance A to the distance A 'is reduced, thereby thereby also the flow cross section and Thus, the mass flow is adjustable.
  • a sealing bellows 180 is provided between them, which allows the relative displacement of the shell body 46b 19 to the shell body 46a 19 and yet the gap 74a 19 between the two shell bodies 46a 19 and 46b 19 completes.
  • a twentieth embodiment illustrated in Fig. 24 preferably immediately consecutive segments, such as segments 30a 20 and 30b, 20, rigidly connected together and lying between these distribution channel 62a 20 is closed by a radially outer wall 180, which is also the segments 30a 20 and 30b 20 rigidly interconnects.
  • the distribution channel 62b 20, 30b between the segments 20 and 30c 20 to a distribution chamber 182 open through which the supply of the medium in this takes place.
  • the segments 30c 20 and 30d 20 are rigidly connected to each other, so that the distribution space 62c 20 is also completed to the outside, while a partial channel 62 20 between the segment 30d 20 and the closure body 32 20 to the distribution chamber 182 is open.
  • the distribution channels 62 b and 62 d via the distribution chamber 182 also serving as a reservoir, while in the distribution channels 62a 20 and 62c 20 via a separate line 184, the medium is to be supplied, the line 184, for example, from a On one of the injector 14 20 opposite side feed chamber 186 goes out.
  • the line 184 flexible, there is in this embodiment, the possibility of the segments 30c 20 relative and 30d 20 which are in turn connected firmly to one another to move, and the segments interconnected 30a 20 and 30b 20 thus a Cross section of the outlet portions 70d 20 and 70b 20 to vary, while the outlet cross sections 70a 20 and 70c 20 are invariable in this case.
  • the two segments 30a 21 and 30b 21 are formed as helical bodies which engage with each other, wherein in each of the segments 30a 21 and 30b 21 a distribution channel 62a 21 or 62b 21 is provided, which also runs in the spiral-shaped body.
  • the two segments 30a 21 and 30b, 21 forming a spiral-shaped body are spirally wrapped around more than or equal to 360 ° about the central axis 36 21 wherein in each of the segments 30a 21 and 30b 21 from the respective distribution channel 62a 21, 62b 21, a flow setting member 80a 21 and 80b 21 70a leads 21 and 21 to an outlet 70b, which faces the Mischraum16 21, so that the exiting streams enter 72a 21 and 72b 21 in the Mischraum16 21 and result there in known manner, a mixing.
  • the segments 30 21 are formed in multiple layers in the twenty-first embodiment, so that 21 respectively, a jacket body is formed 46a 21 and 46a '21 and 46b, 21 and 46b' 21 on both sides of the flow defining member 80 which ensures a gas-tight seal to the through the medium supplied to the respective distribution channel 62 to the outlet regions 70 21 to lead.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Accessories For Mixers (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Claims (68)

  1. Mélangeur, comprenant une tête de mélange (10), qui est constituée d'au moins deux segments (30) s'engageant l'un dans l'autre coaxialement par rapport à un axe (36),
    caractérisé en ce que la tête de mélange (10) forme, avec une surface d'injecteur (14), une terminaison d'un espace de mélange (16) disposé dans un boîtier de l'espace de mélange (12), en ce que, pour l'amenée d'un premier fluide et d'un deuxième fluide à l'espace de mélange (16), lesdits au moins deux segments (30) comportent des zones de paroi limitant au moins un premier canal de distribution (62) avec une zone de sortie (70) allongée correspondante, pour un courant (72) du premier fluide et au moins un deuxième canal de distribution (62), séparé du premier, avec une zone de sortie (70) allongée correspondante pour un courant (72) du deuxième fluide, et en ce que la zone de sortie (70) allongée pour le premier fluide et la zone de sortie (70) allongée pour le deuxième fluide sont configurées coaxialement l'une par rapport à l'autre et au moins dans une zone angulaire de 360° tout autour de l'axe (36) et sont disposées dans la surface de l'injecteur (14).
  2. Mélangeur selon la revendication 1, caractérisé en ce que les segments (30) comportent des zones de paroi (46) s'étendant dans la direction de l'axe (36) et limitant les canaux de distribution (62) avec les zones de sortie (70), et s'engageant l'un dans l'autre avec ces zones de paroi (46) s'étendant en direction de l'axe (36).
  3. Mélangeur selon la revendication 1 ou 2, caractérisé en ce que les segments (30) comportent des zones de paroi s'étendant transversalement par rapport à la direction de l'axe (36) et limitant les canaux de distribution (62) avec les zones de sortie (70).
  4. Mélangeur selon l'une quelconque des revendications précédentes, caractérisé en ce que ladite au moins une zone de sortie (70) laisse sortir le courant (72) du premier fluide avec une composante dirigée vers l'axe (36).
  5. Mélangeur selon l'une quelconque des revendications 1 à 3, caractérisé en ce que ladite au moins une zone de sortie (70) laisse sortir le courant (72) du premier fluide avec une composante dirigée en sens opposé à l'axe (36).
  6. Mélangeur selon l'une quelconque des revendications 1 à 3, caractérisé en ce que ladite au moins une zone de sortie (70) laisse sortir le courant (72) du premier fluide avec une composante dans la direction de l'axe (36).
  7. Mélangeur selon l'une quelconque des revendications précédentes, caractérisé en ce que ladite au moins une zone de sortie (70) laisse sortir le courant (72) du deuxième fluide avec une composante dirigée vers l'axe (36).
  8. Mélangeur selon l'une quelconque des revendications 1 à 6, caractérisé en ce que ladite au moins une zone de sortie (70) laisse sortir le courant (72) du deuxième fluide avec une composante dirigée en sens opposé à l'axe (36).
  9. Mélangeur selon l'une quelconque des revendications 1 à 6, caractérisé en ce que ladite au moins une zone de sortie (70) laisse sortir le courant (72) du deuxième fluide avec une composante dans la direction de l'axe (36).
  10. Mélangeur selon l'une quelconque des revendications précédentes, caractérisé en ce que le courant (72) du premier fluide et le courant (72) du deuxième fluide se déplacent sans croisement l'un par rapport à l'autre.
  11. Mélangeur selon l'une quelconque des revendications 1 à 9, caractérisé en ce que le courant (72) du premier fluide et le courant (72) du deuxième fluide se déplacent en se croisant.
  12. Mélangeur selon l'une quelconque des revendications précédentes, caractérisé en ce que les canaux de distribution (62) sont configurés respectivement en un tracé fermé tournant autour de l'axe (36).
  13. Mélangeur selon l'une quelconque des revendications 1 à 12, caractérisé en ce que les canaux de distribution (62) sont configurés essentiellement en un tracé en spirale tournant d'au moins environ 360° autour de l'axe (36).
  14. Mélangeur selon l'une quelconque des revendications précédentes, caractérisé en ce que les zones de sortie (70) sont configurées respectivement en un tracé fermé tournant autour de l'axe (36).
  15. Mélangeur selon l'une quelconque des revendications 1 à 14, caractérisé en ce que les zones de sortie (70) sont configurées respectivement en un tracé en spirale tournant d'au moins 360° environ autour de l'axe (36).
  16. Mélangeur selon l'une quelconque des revendications précédentes, caractérisé en ce que l'axe (36) est un axe médian de la tête de mélange (10).
  17. Mélangeur selon l'une quelconque des revendications précédentes, caractérisé en ce que les zones de sortie (70), du point de vue de leur section d'écoulement, sont réglables par déplacement des segments (30) l'un par rapport à l'autre.
  18. Mélangeur selon l'une quelconque des revendications précédentes, caractérisé en ce que l'axe (36) est un axe médian de l'espace de mélange (16).
  19. Mélangeur selon l'une quelconque des revendications précédentes, caractérisé en ce que l'axe (36) est un axe de symétrie avec la même symétrie pour chacune des zones de sortie (70).
  20. Mélangeur selon l'une quelconque des revendications précédentes, caractérisé en ce que les zones de sortie allongées (70) sont formées par une multitude d'orifices de sortie disposés le long d'une piste.
  21. Mélangeur selon l'une quelconque des revendications précédentes, caractérisé en ce que les zones de sortie (70) sont formées par une zone de matière perméable disposée le long d'une piste.
  22. Mélangeur selon l'une quelconque des revendications précédentes, caractérisé en ce que les zones de sortie (70) se trouvent proches d'une surface (14) limitant l'espace de mélange (16).
  23. Mélangeur selon l'une quelconque des revendications précédentes, caractérisé en ce que les zones de sortie (70) se trouvent dans une surface de l'injecteur (14) limitant l'espace de mélange (16).
  24. Mélangeur selon la revendication 23, caractérisé en ce que la surface de l'injecteur (14) limitant l'espace de mélange (16) est une surface incurvée.
  25. Mélangeur selon la revendication 24, caractérisé en ce que la surface de l'injecteur (14) limitant l'espace de mélange (16) est une surface bombée.
  26. Mélangeur selon la revendication 25, caractérisé en ce que la surface de l'injecteur (14) limitant l'espace de mélange (16) est une surface bombée à la manière d'une calotte.
  27. Mélangeur selon l'une quelconque des revendications précédentes, caractérisé en ce que le canal de distribution (62) avec la zone de sortie (70) correspondante est limité par deux segments (30) disposés à la suite l'un de l'autre.
  28. Mélangeur selon la revendication 27, caractérisé en ce qu'au moins un des segments (30) limite d'un côté le canal de distribution (62) par une de ses zones de paroi.
  29. Mélangeur selon la revendication 28, caractérisé en ce que le segment (30) se trouvant le plus proche dudit au moins un segment (30) limite le canal de distribution (62) par une de ses zones de paroi.
  30. Mélangeur selon l'une quelconque des revendications 27 à 29, caractérisé en ce que le canal de distribution (62) est formé dans une zone de paroi d'un des segments (30).
  31. Mélangeur selon l'une quelconque des revendications 27 à 30, caractérisé en ce qu'au moins un des segments (30) limite la zone de sortie (70) d'un côté par une de ses zones de paroi.
  32. Mélangeur selon la revendication 31, caractérisé en ce que le segment (30) se trouvant le plus proche dudit au moins un segment (30) limite la zone de sortie (70) avec une de ses zones de paroi.
  33. Mélangeur selon l'une quelconque des revendications précédentes, caractérisé en ce que chaque segment (30) comporte un corps périphérique (46) et en ce que les segments (30) s'engagent l'un l'autre dans la direction de l'axe (36), au moins par des tronçons partiels (47, 140) de leurs corps périphériques (46).
  34. Mélangeur selon la revendication 33, caractérisé en ce que les corps périphériques (46) s'étendent jusqu'à une surface d'injecteur (14) de la tête de mélange (10).
  35. Mélangeur selon la revendication 33 ou 34, caractérisé en ce que les corps périphériques (46) forment les surfaces de la paroi limitant le canal de distribution (62) et les zones de sortie (70).
  36. Mélangeur selon l'une quelconque des revendications 33 à 35, caractérisé en ce que les corps périphériques (46) sont configurés comme des corps fermés entourant l'axe (36).
  37. Mélangeur selon l'une quelconque des revendications 33 à 36, caractérisé en ce que les corps périphériques (46) comportent des sections (47) de tracé conique par rapport à l'axe (36).
  38. Mélangeur selon l'une quelconque des revendications 33 à 36, caractérisé en ce que les corps périphériques (46) comportent des sections (140) de tracé cylindrique par rapport à l'axe (36).
  39. Mélangeur selon l'une quelconque des revendications 33 à 35, caractérisé en ce que les corps périphériques (46) s'étendent en forme de spirale par rapport à l'axe (36).
  40. Mélangeur selon l'une quelconque des revendications précédentes, caractérisé en ce que les segments (30) sont fabriqués à partir de corps de départ identiques.
  41. Mélangeur selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une liaison étanche au fluide respectif entre les segments (30) s'effectue dans une zone d'étanchement (55) des segments (30) se trouvant à distance de la zone de sortie (70).
  42. Mélangeur selon la revendication 41, caractérisé en ce que la zone d'étanchement (55) des segments est disposée dans une partie des segments (30) sensiblement opposée à la zone de sortie (70).
  43. Mélangeur selon la revendication 41 ou 42, caractérisé en ce que la liaison des segments (30) dans la zone d'étanchement (55) s'effectue par ajustement.
  44. Mélangeur selon la revendication 41 ou 42, caractérisé en ce que la liaison des segments (30) dans la zone d'étanchement (55) est formée de manière étanche par un élément d'étanchéité pour le fluide respectif.
  45. Mélangeur selon l'une quelconque des revendications 41 à 44, caractérisé en ce que le segment (30) respectif s'étend comme conformation étanche au fluide respectif de la zone d'étanchement (55) jusqu'à la zone de sortie (70).
  46. Mélangeur selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un positionnement mécanique des segments (30) l'un par rapport à l'autre s'effectue dans une zone de positionnement (57) se trouvant à distance de la zone de sortie (70) des segments.
  47. Mélangeur selon la revendication 46, caractérisé en ce que la zone de positionnement (57) des segments (30) est disposée dans une partie des segments (30) opposée à la zone de sortie (70).
  48. Mélangeur selon l'une quelconque des revendications 41 à 47, caractérisé en ce que la zone de positionnement (57) et la zone d'étanchement (55) sont essentiellement coïncidentes.
  49. Mélangeur selon la revendication 48, caractérisé en ce qu'une amenée du fluide respectif s'effectue dans une zone d'amenée (65) du canal de distribution (62) se trouvant à distance de la zone de sortie (70).
  50. Mélangeur selon la revendication 49, caractérisé en ce que la zone d'amenée (65) se trouve proche de la zone d'étanchement (55) et/ou de la zone de positionnement (57).
  51. Mélangeur selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un élément pour fixer l'écoulement (80) est disposé entre le canal de distribution (62) et la zone de sortie (70).
  52. Mélangeur selon la revendication 51, caractérisé en ce que l'élément pour fixer l'écoulement (80) est un élément réduisant une section d'écoulement pour le courant du fluide respectif.
  53. Mélangeur selon la revendication 52, caractérisé en ce que l'élément pour fixer l'écoulement (80) comporte des canaux (164, 168) qui conduisent à la zone de sortie (70).
  54. Mélangeur selon la revendication 52, caractérisé en ce que l'élément pour fixer l'écoulement (80) comporte une structure poreuse perméable au courant dans la direction de la zone de sortie (70).
  55. Mélangeur selon l'une quelconque des revendications 51 à 54, caractérisé en ce que les éléments pour fixer l'écoulement (80) définissent une direction de l'écoulement du courant (72) du fluide respectif.
  56. Mélangeur selon l'une quelconque des revendications 51 à 55, caractérisé en ce que les éléments pour fixer l'écoulement (80) sont disposés entre deux corps périphériques (46) consécutifs.
  57. Mélangeur selon la revendication 56, caractérisé en ce que les éléments pour fixer l'écoulement (80) s'étendent jusqu'à la surface de l'injecteur (14).
  58. Mélangeur selon l'une quelconque des revendications 51 à 57, caractérisé en ce que les éléments pour fixer l'écoulement (80) sont fabriqués en un matériau perméable au fluide respectif.
  59. Mélangeur selon l'une quelconque des revendications 51 à 57, caractérisé en ce que les éléments pour fixer l'écoulement (80) comportent des traversées (164, 168).
  60. Mélangeur selon l'une quelconque des revendications précédentes, caractérisé en ce que l'élément respectif pour fixer l'écoulement (80) s'appuie au moins sur un des corps périphériques (46).
  61. Mélangeur selon l'une quelconque des revendications précédentes, caractérisé en ce que l'élément respectif pour fixer l'écoulement (80) s'appuie respectivement sur les côtés opposés sur un des corps périphériques (46) avoisinant celui-ci.
  62. Mélangeur selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un élément de distribution de l'écoulement (116) est prévu entre le canal de distribution (62) et l'élément pour fixer l'écoulement (80).
  63. Mélangeur selon l'une quelconque des revendications précédentes, caractérisé en ce que, dans leurs tronçons jouxtant les zones de sortie (70), les segments (30) sont en un matériau usinable par enlèvement de copeaux.
  64. Mélangeur selon l'une quelconque des revendications 51 à 63, caractérisé en ce que les éléments pour fixer l'écoulement (80) sont fabriqués en un matériau usinable par enlèvement de copeaux.
  65. Mélangeur selon la revendication 63 ou 64, caractérisé en ce que le matériau usinable par enlèvement de copeaux limite l'espace de mélange (16) par la surface (82, 84) produite lors de l'usinage.
  66. Mélangeur selon la revendication 65, caractérisé en ce que le matériau usinable par enlèvement de copeaux est un corps composite avec des fibres de carbone ou d'oxyde.
  67. Mélangeur selon l'une quelconque des revendications précédentes, caractérisé en ce que l'espace de mélange (16) s'étend au moins en partie jusque dans la tête de mélange (10).
  68. Mélangeur selon la revendication 67, caractérisé en ce que l'espace de mélange (16) s'étend dans un évidement (24) formé dans la tête de mélange (10).
EP05011802A 2004-06-09 2005-06-01 Mélangeur incluant une tête de mélange pour introduire des fluides dans la cavité de mélange du mélangeur. Expired - Lifetime EP1604731B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004029028 2004-06-09
DE102004029028A DE102004029028A1 (de) 2004-06-09 2004-06-09 Mischkopf

Publications (2)

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EP1604731A1 EP1604731A1 (fr) 2005-12-14
EP1604731B1 true EP1604731B1 (fr) 2008-01-02

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EP05011802A Expired - Lifetime EP1604731B1 (fr) 2004-06-09 2005-06-01 Mélangeur incluant une tête de mélange pour introduire des fluides dans la cavité de mélange du mélangeur.

Country Status (3)

Country Link
EP (1) EP1604731B1 (fr)
AT (1) ATE382421T1 (fr)
DE (2) DE102004029028A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017109732A1 (de) * 2017-05-05 2018-11-08 Deutsches Zentrum für Luft- und Raumfahrt e.V. Schalenstruktur mit thermoelektrischer Einrichtung, Brennkammervorrichtung und Verfahren zur Gewinnung eines nutzbaren elektrischen Stroms
US10674751B1 (en) 2019-02-21 2020-06-09 Empirical Innovations, Inc. Heating medium injectors and injection methods for heating foodstuffs

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Publication number Priority date Publication date Assignee Title
DE102006029586A1 (de) 2006-06-20 2007-12-27 Deutsches Zentrum für Luft- und Raumfahrt e.V. Einblaskopf, Mischungsraum und Triebwerk
DE102011000383B4 (de) 2011-01-28 2015-01-22 Deutsches Zentrum für Luft- und Raumfahrt e.V. Triebwerkvorrichtung und Verfahren zum Betreiben einer Triebwerkvorrichtung
DE102013105345B4 (de) 2013-05-24 2019-01-10 Deutsches Zentrum für Luft- und Raumfahrt e.V. Schubkammervorrichtung und Verfahren zum Betreiben einer Schubkammervorrichtung
DE102013105342B4 (de) 2013-05-24 2021-06-17 Deutsches Zentrum für Luft- und Raumfahrt e.V. Verfahren zur Herstellung eines Injektors und Injektor
CN103657491B (zh) * 2013-12-04 2015-08-26 上海森松混合技术工程装备有限公司 一种鼠笼式超重力混合器
WO2017194198A1 (fr) * 2016-05-10 2017-11-16 Linde Aktiengesellschaft Procédé, dispositif de mélange et installation technologique

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AT362755B (de) * 1977-10-21 1981-06-10 Huetter Karl Vorrichtung zum belueften von fluessigkeiten
SE449449B (sv) * 1984-11-26 1987-05-04 Bejaco Ab Forfarande for inblandning av finfordelad vetska i ett gasflode samt anordning for utovande av forfarandet
US6395175B1 (en) * 2000-04-03 2002-05-28 Battelle Memorial Institute Method and apparatus for energy efficient self-aeration in chemical, biochemical, and wastewater treatment processes
US6623154B1 (en) * 2000-04-12 2003-09-23 Premier Wastewater International, Inc. Differential injector
JP4431857B2 (ja) * 2003-05-30 2010-03-17 富士フイルム株式会社 マイクロデバイス

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017109732A1 (de) * 2017-05-05 2018-11-08 Deutsches Zentrum für Luft- und Raumfahrt e.V. Schalenstruktur mit thermoelektrischer Einrichtung, Brennkammervorrichtung und Verfahren zur Gewinnung eines nutzbaren elektrischen Stroms
DE102017109732B4 (de) * 2017-05-05 2020-03-05 Deutsches Zentrum für Luft- und Raumfahrt e.V. Schalenstruktur mit thermoelektrischer Einrichtung, Brennkammervorrichtung und Verfahren zur Gewinnung eines nutzbaren elektrischen Stroms
US10674751B1 (en) 2019-02-21 2020-06-09 Empirical Innovations, Inc. Heating medium injectors and injection methods for heating foodstuffs
US11147297B2 (en) 2019-02-21 2021-10-19 Empirical Innovations, Inc. Heating medium injectors and injection methods for heating foodstuffs
US11864572B2 (en) 2019-02-21 2024-01-09 Empirical Innovations, Inc. Systems and methods for receiving the output of a direct steam injector
US11896040B2 (en) 2019-02-21 2024-02-13 Empirical Innovations, Inc. Articles including undenatured meat protein and water condensed from steam
US12137714B2 (en) 2019-02-21 2024-11-12 Empirical Innovations, Inc. Systems and methods for receiving the output of a direct steam injector
US12382970B2 (en) 2019-02-21 2025-08-12 Empirical Innovations, Inc. Articles including undenatured meat protein
US12389918B2 (en) 2019-02-21 2025-08-19 Empirical Innovations, Inc. Heating medium injectors and injection methods for heating foodstuffs

Also Published As

Publication number Publication date
DE502005002373D1 (de) 2008-02-14
EP1604731A1 (fr) 2005-12-14
ATE382421T1 (de) 2008-01-15
DE102004029028A1 (de) 2006-01-05

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