• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    To make a Fluidmiseher adjustable via a drive explosion-proof, a recess (16) is seen in front of a first, displaceable inner part (4) of the fluid mixer (1) into which a drive element of the drive (3) for moving the first inner part (4 ), wherein axially on both sides of the recess (16) each have a first sealing element (18) is arranged between the first inner part (4) and the housing (2) of the fluid mixer (1) against the fluid flow through the parts of the fluid mixer (1 ) seal.
    公开号:AT513460A1
    申请号:T50444/2012
    申请日:2012-10-12
    公开日:2014-04-15
    发明作者:
    申请人:Hoerbiger Kompressortech Hold；
    IPC主号:
    专利说明:

    823 AI
    Ftuidrmscher with drive
    The present invention relates to a fluid mixer with a housing in which a first inner part slidably angeord net Is and the housing © is provided in the second Innentelf, wherein between the first Innenteii and second innenteii Zumischöffnungen ausgebii- • 5 det sfnd and wherein the housing in a drive recess Furthermore, a drive for moving the first innenteiis is provided
    Fluidmisdw are rotated around two fluids, such as z, B. Air and fuel gas for a gas engine to mix in a desired ratio with each other and as homogeneous as possible. Such Fluidmiseher are usually as Ventuhmhre: constructed and working sm sub-10 sound field at a substantially constant ambient pressure. In the process, a first fluid, z, egg, flows through the air, the tube, whereby the velocity of the fluid in the fluid motor never reaches the speed of the tube. At the narrowest part of the venturi, ie at the stiffener, where the dynamic pressure (dynamic pressure) is maximal and the static pressure (static pressure) is minimal. If openings in the venturi tube have a second fluid, such as B, B. Less than or equal to liquid fuel, but in the most confined space, it is not possible to achieve total sagging, and so in the subsequent divergent part of known walls there is a delay in the flow and an increase in static pressure. The divergent nozzle area is due to the hesitant flow particularly sensitive to flowabiosang of the flowed-through Fiuldgemisehes. In existing fluid mixers, a known sample is thus the separation of the syrup in the divergent part of the fluid mixer and thus adverse adverse pressure effects.
    From such after the Vehturiphnzlp working fluid mixers Laval nozzles are fundamentally ·· Iich to distinguish. A lava nozzle is understood to mean a nozzle for accelerating a compressible gas flow from a unseparated state to a vertical state. For the acceleration of a gas in the subsonic area, a constricting (converging) contour is required. The incoming subsonic flow is accelerated in the convergent nozzle to the narrowest, critical cross-section at the speed of sound and from there to the supersonic velocity in the divergent nozzle. This is based on the physical fact that a supersonic flow is accelerated in a diffuser (in contrast to a lower flow which is retarded in a diffuser, as in a Venfur tube). Thus, there is an accelerated flow throughout the lava nozzle and the static pressure decreases monotonically with increasing velocity. Strömunosablö- solutions of the gas flowing through are not relevant due to the existing stability of the accelerated flows. The far more important effect in OberschalF 35 currents in a lava nozzle is the so-called Verdichtongsstoil, which by abrupt 2/9
    S23 AT
    Delaying the flow is due to Untemchäliö conditions and comes with large losses. Whether such a compression stroke occurs in a Lavaibuse depends solely on the ratio of pressure between nozzles and on the ratio of minimum cross-section to Austotis cross-section. Such Lavaldösen are often used as rocket nozzles, where you so-called Pöppetglöckengeometrien are known to prevent the on the one hand, the occurrence of a compression shock and on the other hand form defined demolition edges, äh which the flow should tear off at defined conditions, for: all Steigh heights to have the best possible bavafdöse available. Here, a stall is thus brought about quite purposefully. In order to regulate the amount of gas to be added, fluid mills are frequently used; the one movable, in particular axially displaceable, inner part, for example, the divergent part of Venturiirorhrs, aufweisan. By moving this inner part of the Zumisehöff-nyngen and; so that the amount of gas supplied are adjusted. For this purpose, an electrical drive is usually provided on the faulty irr, which interacts with the displaceable interior door. The problem here is the fact that a combustible gas is mixed in and precautions must be taken with regard to an effective explosion protection device.
    It is therefore an object of the subject invention to provide a Fluidm iseber with slidable henenteil, which has a simple and effective Schulz against Explo-sion sion.
    According to the invention, this object is achieved by providing a recess in each of the first inner elements, in which an actuating element for displacing the first inner part engages and axially on both sides of the recess a respective first part is arranged between the first inner part and the housing seal with respect to the flowed through by the fluid 25 parts of the fluid mixer. Thus, the drive recess is separated from the fluid flow through parts of the Flyidmischer which it does not cause any explosion, z, S. triggered by a spark in the drive, can come in Fluidmiscber.
    The explosion protection can be improved if a second sealing element is provided between the drive and the housing, whereby a two-stage sealing is realized. Thus, for automatic pressure equalization, the housing may be provided with a vent valve connected to the anti-sundage. By the seals against the fluid is prevented from being discharged through the vent valve fluid into the environment. 3.9
    823 er
    Advantageous VV'eiseist a Prüfanschususs arranged on the housing, which is connected to the recess. On the one hand, this allows for the least possible flooding, z, B > on a Druckaöfaitsprüfung, and on the other hand, a permanent: leakage test, which further increases the security and Explaionssehutzutz, • In order to check the Fiuidmischer easy and quick or throw, can be provided advantageously Wslse, detachably arrange the second Innenteii on the housing, which the area of the tooth openings are easily accessible.
    The subject invention will be described in more detail with reference to the exemplary, non-limiting Figures 1 and 2, which show advantageous embodiments of the invention, in more detail
    FIG. 1 is a section through an inventive fluid mixer; and FIG. 2 is a view of the fluid guide with the second internal valve removed.
    The inventive FIMdmischer 1 is described below with reference to the Flgs. 1 and 2 and comprises a housing 2, in which in the recess 2 to the housing: 2 displaceable first Innenteii 4 {indicated by the double arrow in Figure 1) here in the form of a diffuser, and a drive 3 for displacing this displaceable internal 4 are disordered. On: Housing 2 is further arranged a rigid, nozzle-shaped second inner part S. Of course, the second interior S could also be an integral part of the housing 2 and not a separate component. The first and second inner parts 4, 5 together form a Venturi circle. The flow direction through the fluid mixer is indicated by the arrow in FIG. 1. A first fluid, e.g. Air is supplied via an egg niriitsberejeh at the second innenteii 5 (eg the äxiaie end of the second Innenteiis B) and the fluid mixture over a Äusthttsbereieh at the first innenteii 4 (eg the axial end of the first Innenteiis 4} discharged from the Fiuidmischer 1, 25 Irn Housing 2, here between housing 2, first inner part 4 and second inner part 5, is further provided with a recess 6, which is connected with a second fluid supply opening 7. The recess 8 is preferably annular and has the first and / or second inner part 5. In the region of the narrowest cross-section of the venturi, a number of admixing openings 8 are provided distributed over the circumference, which are thus connected to the recess 6 and thus to the feed opening 7. The second fluid, eg fuel gas, is injected through the orifices 3. cycled and finally with: the first fluid, eg air mixed.
    The Zumlschöffnungen 8 are executed here in the form of an axially protected ring 9, the radially outside of an axial shoulder 19 on the first inner part 4 facing axial 4/9 823 A7
    End of the second Innenteiis 5 is arranged. The axially slotted ring 9 also includes the second innentei! 5 facing axial end of the first Innenteiis 4, so that the length of the admixing openings 8 formed by the axial slots, and thus the zttfütirbare Fluidmehge, is determined by the axial position of the displaceable first innenteiis 4, s Of course, the Zumisehöffnuhgen could also be any differently ausgeiaitei, z.8, the axial slots could be incorporated directly into the second innenteii 5, which could be dispensed with an independent ring 9. Similarly, in the region of the axial end of the second Innenteiis 5 distributed over the circumference radial bores are conceivable; those from the first innenteii 4 partially; be covered. In addition, the second inner element 5 can also be detachable from the housing, as indicated in FIG. by a suitable: screw connection in order to easily and quickly reach the area of the admixing openings 8. for maintenance or cleaning. 15 in a Äntnebsausnehmung 10 of the housing 2, which is completed here by a cover 11, the drive 3 for the displaceable inner part 4 is arranged. The drive 3 is here as an electric motor 12 executed on the housing 2 further connections 13 can be provided for the power supply of the drive 3: and for control and measurement signals to or from the drive 3, the; are suitably connected to the drive 3.
    By means of a drive 3, a drive belt which engages in a recess 18 on the displaceable inner part 4 and cooperates therewith for displacing the inner element 4. In the illustrated embodiment, an electric motor 12 is provided as the drive, which drives a disk 14 on which an eccentric pin 15 is arranged as the drive element. The recess 16 nm first inner part 4 can also be designed as a ring spout. By rotating the disc 14 and thus the eccentric pin 15, the rotational movement in a translational, axiaie movement of the displaceable harvest innenfeiis 4 25 converted The inner wall 17 of the housing 2 serves as a guide surface for the displaceable innenteii 4, Of course, could also any other suitable drive as a Ünearantfieb, a hydraulic or pneumatic drive, etc., are used
    In order to seal the drive 3 against the supplied second fluid and against the fluid mixture, on both axial sides of the recess 1b first sealing elements 18t are e.g. Q ~ so rings, provided. The sealing elements 18 are seated in recesses of the displaceable interior 4 or the housing 2. In addition, between the drive 3 and the housing, preferably a moving part of the drive 3 and the housing 2, e.g. häerzwA see disc 14 or between drive shaft and housing 2, and second sealing elements 22, as here, for example. a ring seal, be arranged. This achieves a two-stage as sealing the Anthebsausnehmung 10 against a fluid in the fluid mixer 1. On this; 5.9
    823 AT
    In this way, the ablation recess 10 can be safely forced against the fluid inlet mixer 1, and even an exploratory cleaning apparatus such as that shown in FIG. a® ATEX certification.
    Furthermore, it is possible to provide on the housing 2 a venting valve 20, which is in the inlet position with the actuating shaft 10. The venting valve 2 O is e.g. As a vent hole, which is versohlossen by a gasdurchlässige'Membran (eg, a GoreTex membrane) carried out: This can diffuse at low or positive pressure air in both directions through without water or moisture can penetrate into the Annebsausnehmung 10 , 10 Similarly, a Prufanschiiuss 2.1 may be provided on the housing 2, which is in communication with the recess 16. A pressure drop test can be carried out via this test connection 21 and can be determined in this way as to whether the seal between leaktight recess 10 and the part of the fluid separator 1 which is in the fluid flow direction is leaky. The Prüfanschiuss 21 may, as indicated in Figure 2, also serve as a connection for a 15 permanent leak test, z.8, by means of suitable sensors 23 for the detection of gas. The sensor 23 responds to gas leaks and signals the z.8. to a controller 24, which takes appropriate action, e.g. an emergency stop by closing the admixing openings 8, or a corresponding signal triggers. 6.9
    权利要求:
    Claims (5)
    [1]
    323 AI Patentansprüche 1 Fiuidmischer with a housing (2) in which a first inner part (4) is slidably mounted and on the housing (2) a second Innenteü (5) is provided where between 5 tem inner part (4) and second inner part (5) Zurrtischöftnungen (8) are formed and wöbe, in the housing (2) in a Äniriahsausnehmung (10) further comprises a drive (3) for moving the first Innenteiis (4) is provided, characterized in that the first inner part (4) has a recess (18) is provided in which a Äntriehselement the drive (3) for moving the first Innenteiis (4} eingusteft and that axially on both sides of the το Äusnehmung (16) each a first sealing element (18) is arranged which seal between the first inner part (4) and the housing (2) with respect to the parts of the fluid mixer (1) through which the fluid flows,
    [2]
    2. Fiuidmischer according to claim 1, characterized in that between the drive (3) and housing (2), a second sealing element (22) is provided. is
    [3]
    3. Fiuidmischer hach claim 1 or 2, characterized in that on the housing (2) a vent valve (20) is arranged in an art, which is connected to the Äritriebsausnehmung (10),
    [4]
    4, Fiuidmischer according to one of claims 1 to 3, characterized in that the housing (2) a test connection (21) is arranged angeordnei, which is connected to the recess (16) 2ö,
    [5]
    5. Fiuidmischer according to one of claims 1 to 4, characterized in that the second innenteir (S) Idsbar on the housing (2) is conveyed)
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    同族专利:
    公开号 | 公开日
    AT513460B1|2014-09-15|
    DE102013016454A1|2014-04-17|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE4002340A1|1990-02-02|1991-08-01|N I S Pri Vtu Angel Kantschev|DEVICE FOR MIXING AIR AND GAS OR VAPORED FUELS|
    DE4137573A1|1991-11-15|1993-05-19|Motoren Werke Mannheim Ag|Venturi mixer - for mixing gas of sharply changing quality with air esp. for combustion engines|
    AT511466B1|2011-08-03|2012-12-15|Hoerbiger Kompressortech Hold|FLUID MIXER|
    CN105370446A|2015-11-23|2016-03-02|重庆普什机械有限责任公司|Novel gas mixing device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50444/2012A|AT513460B1|2012-10-12|2012-10-12|Fluid mixer with drive|ATA50444/2012A| AT513460B1|2012-10-12|2012-10-12|Fluid mixer with drive|
    DE201310016454| DE102013016454A1|2012-10-12|2013-10-02|Fluid mixer for mixing air and combustible gas, used in gas engine, has sealing element that is provided between inner element and housing to seal the drive recess against the fluid flowing through mixer portion|
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