• 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:
    A silencer for an exhaust duct (2), in particular a gas turbine, comprises a plurality of silencer elements (5), between which intermediate spaces (6, 7) for the passage of exhaust gas lie. A respective silencer element (5) is longitudinally extended in a z-direction lying parallel to a flow direction through the silencer and has a length (I) with respect to a z-direction relative to an x-direction perpendicular to the z-direction is the smallest dimension of the muffler element (5), a thickness (d) and in a direction perpendicular to the z-direction and the x-direction y-direction has a width (b), which is smaller than the length (I) of the muffler element (5) , The width (b) of a respective muffler element (5) is less than half, preferably less than one third, of the total extension of the muffler relative to the y direction of the respective muffler element (5). There are silencer elements (5) are present, the y-direction angle, preferably perpendicular to each other. (Fig. 3)
    公开号:AT513843A4
    申请号:T375/2013
    申请日:2013-05-06
    公开日:2014-08-15
    发明作者:Peter Alexander Prochazka
    申请人:Compact Power Plant Products Gmbh；
    IPC主号:
    专利说明:

    ♦ · ♦ · Patent Attorneys Hofmann 5 < Fechner
    Dr. Ralf Hofan · rfh · .. ·
    Dr. Thomas Fechner 6806 Feldkirch, Austria Egelseestr 65a, post office box 61 • t »·· ^: ^. (9) 5522 73 137 F +43 (0) 5522 73 359: M office@vpat; at I www.voat.a: 25311 / 33 / ss 130424 1
    The invention relates to a silencer for an exhaust duct, in particular a gas turbine, with a plurality of silencer elements, between which interstices for flow of exhaust gas lie, wherein a respective silencer element is formed in a direction parallel to a flow through the silencer lying z-direction longitudinally and with respect to the z-direction, a length relative to a x-direction perpendicular to the z-direction, which represents the direction of the smallest extent of the muffler element, has a thickness and a perpendicular to the z-direction and the x-direction. Direction has a width which is less than 10 the length of the muffler element.
    Such silencers are known as slotted silencers. The individual muffler elements, which are also referred to as scenes, are parallel to one another and each extend substantially over the entire width of the exhaust gas channel. The exhaust gas flows through the intermediate spaces between the adjacent silencer elements. In an embodiment of such a slotted silencer as an absorption silencer, the scenes have a porous sound-absorbing material arranged in a frame, in particular mineral fiber materials are used for this purpose. The 20 spaces facing side walls of the scenes can be covered with a perforated plate.
    Resonance silencers, also referred to as resonator silencers, which may also be designed in the form of slotted silencers, are known below. Such may be formed in the manner of membrane absorbers (also called plate resonators or plate vibrators) or Helmholtz resonators (also referred to as hole resonators). 1/30 2 • · · · • ♦ • · · ··· ··· · · • ♦ • · · · ·
    The use of a combination of absorption mufflers and resonance mufflers is known.
    The object of the invention is to provide an advantageous muffler of the type mentioned, which is characterized by an effective sound insulation. According to the invention, this is achieved by a silencer having the features of claim 1.
    In the silencer according to the invention, the width of a respective silencer element is less than half, preferably less than a third, more preferably less than a quarter, of the total extent of the silencer related to the y-direction of the respective silencer element. In addition, the silencer elements are not all aligned parallel to one another with their y-directions, but rather there are silencer elements whose y-directions are at an angle, preferably at right angles, to one another.
    By a construction according to the invention, a high sound attenuation can be achieved. The reflections between the muffler elements which are angularly aligned with one another in the aforementioned manner lead to mirror sound sources which are advantageous for the soundproofing.
    In an advantageous embodiment of the invention, the muffler elements are all the same design, but at least some of the muffler elements are rotated relative to each other about parallel to the z-axis axes against each other, preferably by 90 °. For example, the muffler elements may each be arranged in pairs lying parallel to each other, wherein the two muffler elements of such a group of two have a distance between them. Adjacent such groups of two are then each rotated against each other, preferably by 90 °, and are spaced from each other. Pro 2/30 • · · · · · · · · · · · ······················································································· · · * · *
    Group could also be more than two mutually parallel, spaced apart silencer elements, for example three (so that groups of three are formed). Preferably, the silencer elements are of parallelepiped shape at least over portions of their longitudinal extension in the z-direction, the sides of the cuboid being aligned parallel to the x, y and z directions. In particular, a central portion of a respective muffler element may have such a cuboid shape, wherein an end cap adjoins the middle section on both sides, which terminates the respective muffler element with respect to the z-direction. The end caps in this case advantageously have tapered ends in order to achieve a favorable inflow and outflow behavior of the silencer elements.
    In preferred embodiments, a respective muffler element 15 is at least over a portion of its longitudinal extension in the z-direction as
    Absorption silencer formed. In the case of absorption silencers, friction of the gas molecules in the absorber occurs, which converts sound into heat. In particular, a respective silencer element has at least over a portion of its longitudinal extension a sound absorption material lying within 20 outer walls. For example, a mineral wool can be used as the sound absorption material. Conveniently, the interior surrounded by the outer walls can be completely filled with the sound absorption material. The outer walls of the silencer element are preferably formed by a perforated plate over at least part of the section over which it is designed as an absorption silencer. This is preferably the case for all outer walls whose surface normals lie in the x-y plane (= plane spanned by the x and y directions).
    In an advantageous embodiment of the invention, a respective silencer element is at least over a portion of its longitudinal extent in 3/30 30 • ····················································································. The z-direction is designed as a resonance muffler, in particular in the manner of a Helmholtz resonator. To form a resonance muffler in the manner of a Helmholtz resonator, the relevant at least one section of the muffler element has an internal cavity which is at least partially free of filling material and which is connected to the exterior via at least one opening. Preferably, the cavity 20 is completely filled with gas only or has at least a plurality of imaginary subregions, each with at least 5 mm3 volume, over which the cavity 20 is filled only with gas. If appropriate, at least one oscillatable resonant part can be arranged in the cavity.
    A resonance silencer is primarily used to dampen low frequencies in a frequency range.
    In a particularly advantageous embodiment of the invention, the silencer elements are each formed at least over a portion of their related to the z-direction expansion as an absorption silencer and at least a portion of their related to the z-direction expansion as a resonance muffler. Preferably, in this case, a respective silencer element is formed in its previously described middle section as an absorption silencer and in the region of at least one of its end caps, preferably both end caps, as a resonance silencer.
    Further advantages and details of the invention are explained below with reference to the accompanying drawings. In this show:
    Figure 1 is a schematic representation of a portion of the exhaust system of a gas turbine.
    2 shows an oblique view of a muffler arranged in an exhaust gas duct of an exhaust pipe according to an embodiment of the invention, the exhaust pipe partially cut open and the muffler shown somewhat simplified; 4/30 ·····························································································································································································
    3, 4 and 5 show an oblique view, top view (viewing direction A in FIG. 5) and side view (viewing direction B in FIG. 4) of the silencer of FIG. 2, the silencer in turn shown somewhat simplified;
    6 shows an oblique view of a silencer element of the silencer in greater detail;
    Fig. 7 is a side view of the muffler element in the x-direction;
    Fig. 8 is a cross-section taken along the line CC of Fig. 7;
    9 shows an oblique view of the centrally cut-off silencer element;
    Fig. 10 is an oblique view corresponding to Figure 9, but without the Schaliabsörptionsmaterial.
    11 is an oblique view of one of the end caps, the end cap cut in the middle; 12 and 13 oblique views of first and second connecting parts for connecting the individual muffler elements of the muffler.
    Fig. 1 shows possible arrangements of a silencer according to the invention in an exhaust pipe 1, through the inner exhaust duct 2, an exhaust gas stream is guided, in particular an exhaust gas stream of a gas turbine.
    FIG. 1 shows a section 1a of the exhaust gas line coming from the gas turbine. By means of a gas switch 3, the exhaust pipe is branched into a branch 1b, which leads to an exhaust gas stack, and into a branch 1c, which can in particular lead to a waste heat boiler for generating water vapor.
    In Fig. 1, an inventive silencer 4 is indicated by dashed lines both in the branch 1 b and in the branch 1 c. The muffler 4 in one of the two branches 1 b or 1 c could also be omitted, depending on the requirements. Instead of the silencers 4 indicated in FIG. 1, an inventive silencer could also be arranged in the exhaust pipe 1 upstream of the gas switch 3, that is to say in the section 1a, as will often be preferred. In principle, silencers 4 according to the invention could also be arranged both in section 1a and in branches 1b and / or 1c. 5/30 t * · ι ············································································································································································································
    An exhaust duct, in which a silencer according to the invention is used, preferably has an opening width of at least 1 m in all directions at right angles to its longitudinal direction.
    In particular, the amount of exhaust gas passed through the exhaust duct during operation may range from 5m3 / s to over 1,600m3 / s and more.
    Such exhaust gas streams of gas turbines have temperatures of over 400 ° C, for example in the range of 480 ° C to 620 ° C, so that a arranged therein muffler must withstand high temperature loads and large temperature changes in continuous operation.
    Fig. 2 shows the arrangement of a silencer 4 according to the invention in the exhaust passage 2 of the exhaust pipe 1 (= - inner cavity of the exhaust pipe 1), wherein the exhaust pipe 1 is shown in section. The cross-sectional area of the exhaust duct 2 is rectangular, preferably square. Accordingly, the exhaust pipe 1 has seen in cross section rectangular, preferably square, inner and outer contours.
    The muffler 4 abuts against the inner walls of the exhaust pipe 1 or has such a small distance from them, that the cross-sectional area of the exhaust passage 2 is at least more than 95% occupied by the muffler 4 (wherein spaces between elements of the muffler belong to the muffler).
    An exemplary embodiment of a silencer according to the invention is shown in FIGS. 3 to 13 without the exhaust pipe.
    The silencer comprises a plurality of silencer elements 5, preferably more than 15, more preferably more than 20. In the embodiment, the silencer has 32 silencer elements 5. 6/30 ··· # · ♦ · · · ··· «· · · · · * · • * * * * * ♦ ♦ · 4 · · · * 4 · 4 · · 7
    Between the muffler elements 5 are interspaces 6, 7. Through this, the exhaust gas flows through the muffler in a flow direction through the muffler. This is in the operating state of the muffler parallel to the longitudinal direction of the exhaust duct 2.
    A single silencer element is shown in detail in FIGS. 6 to 11. In the embodiment, all the muffler elements 5 are the same, as is particularly preferred. In principle, silencer elements 5 designed in various ways could also be provided. Preferably, in this case at least the outer shapes of all muffler elements 5 are the same, but this is not mandatory.
    The silencer elements 5 are longitudinally elongated in a direction which in this document is referred to as the z-direction (direction of a z-axis of the silencer element 5). The z-direction is parallel to the flow through the silencer. In arranged within the exhaust passage 2 operating state of the muffler, the z-direction is therefore parallel to the longitudinal direction of the exhaust passage 2. Relative to the z-direction, a respective muffler element 5 has a length I.
    A respective muffler element 5 has, in a direction perpendicular to the z-direction, which is referred to in this document as the x-direction (^ direction of an x-axis), its smallest extent. In the x-direction, the silencer element 5 has a thickness d (= largest extent of the silencer element S with respect to the x-direction).
    In a direction perpendicular to the z-direction and the x-direction, which is referred to in this document as y-direction (= the direction of a y-axis), has a respective muffler element 5 has a width b.
    In the exemplary embodiment, the width b of a respective silencer element 5 is constant over its entire extent in the z-direction and the length l of a 7/30 "is. The respective silencer element 5 is constant over its entire extent in the y-direction.
    The length I of a respective silencer element 5 is greater than the width b and thus of course greater than the thickness d. Preferably, the length I is more than three times the width b, more preferably more than five times.
    The width b is preferably more than twice the largest thickness d of the respective silencer element 5.
    A respective silencer element 5 has, relative to its expansion in the z-direction, a middle section 8 and end caps 9, 10 adjoining the central section 8 on both sides, which sections adjoin the two ends 11, 12 of the silencer element 5 which relate to the z-direction of the muffler element 5 form.
    The end caps 9, 10 close the middle section 8 and the entire muffler element 5 with respect to the z-direction.
    A respective muffler element 5 is in the exemplary embodiment on the central portion 8 and adjoining the central portions 8 sections of the end caps 9, 10 parallelepiped-shaped. Via end portions of the end caps 9, 10, which adjoin the respective end 11, 12 of the end caps 9, 10, the thickness d of the silencer element 5 decreases continuously towards the respective end 11, 12 of the silencer element 5. The end cap 9 directed counter to the exhaust gas flow directs the exhaust gas flow impinging on the silencer element 5 around the silencer element 5. The end cap 10 directed in the direction of flow of the exhaust gas flow brings the divided exhaust gas flow back together.
    The cuboid shape formed by the middle section 8 and by the sections of the end caps 9, 10 adjoining the middle section is provided with its sides 8/30. · · · ············· , y and z direction, ie the broad sides of the central portion 8 and the adjoining sections of the end caps 9, 10 lie in parallel, spanned by the y and z directions planes, the narrow sides of the central portion 8 and the adjoining sections of the end caps 9, 10 lie in parallel, from the x and z directions spanned planes and imaginary end faces at the end of the cuboid shape lie in parallel planes spanned by the x and y directions,
    The adjoining the ends 11,12, tapered end portions of the end caps 9, 10 have in a view in the y direction on a substantially triangular Außenköntur, wherein the respective end 11, 12 lying tip of the triangle is rounded.
    For example, the end caps 9, 10 could also be designed to taper over their entire extension in the z direction and only the middle section 8 could have a cuboid shape as described.
    The outer walls 13, 14 of the silencer element 5 in the region of the middle section 8 are formed by perforated plates. In the embodiment, both the broad-side outer walls 13 and the narrow-side outer walls 14 over its entire extensions over the middle labschnitt 8 perforated plates, as is preferred. For example, only the broad-side outer walls 13 or only the narrow-side outer walls 14 of perforated plates could be formed or the broad-side outer walls 13 and / or narrow-side outer walls 14 could not be perforated over the entire section over the middle section 8.
    Advantageously, at least more than 80% of the total area of the outer walls 13, 14 of the middle section 8 is formed by perforated sheets.
    Between the central portion 8 and the respective end cap 9, 10 is located in the interior of the muffler element 5 in each case a partition wall 15, 16, the 9/30
    T ··· φ φ φ φ · · φ ·· φ φ φ φ φφ φ · φφφ φ φ φ φ φ φ φ φ φφφ φφ φ φ φ φ · φφ
    Interior 19 of the central portion 8 to the respective end cap 9,10 out closes. The interior 19 of the middle section 8 is further subdivided into a plurality of subspaces by intermediate walls 17, which are arranged spaced apart in the z-direction in the region between the partitions 15, 16. In these subspaces 5 each a sound absorbing material 18 is arranged.
    The intermediate walls 17 could also be omitted. Preferably, the interior 19 of the middle section 8, apart from the optionally existing partitions 17, completely filled with the sound absorbing material 18. 10
    The middle sections 8 of the silencer elements 5 thus form absorption silencers. The sound absorbing material is porous in a known manner. For example, it is a mineral wool or mineral fiber board. 15
    The end caps 9, 10 each have an inner cavity 20. This is of broad-sided outer walls 21, which converge towards the respective end 11,12 of the Schalldämpfereiementes 5 and are connected to this, of narrow-sided outer walls 22, which relate to the respective end 20 11,12 towards their extension in the x-direction taper, and bounded by the respective partition wall 15, 16, which separates the cavity 20 of the respective end cap 9, 10 from the interior 19 of the central portion 8. The cavity 20 of a respective end cap 9, 10 is connected via at least one opening 23 with the outside of the silencer element 5 lying outside space. In the 25 embodiment end the narrow-side outer walls 22 at a distance from the respective end 11, 12 of the muffler element 5, so that the free space between the end of the narrow-side outer wall 22 and the end 11,12 of the muffler element 5 forms a respective opening 23. Instead or in addition thereto, for example, at least one bore could be present in at least one of the narrow-sided outer walls 22 and / or at least one of the broad-sided outer walls 21. 10/30 11 ····· ···············································.
    There could also be only a single opening 23 per end cap 9, 10.
    In the exemplary embodiment, an oscillatable resonant part 24 is arranged in the cavity 20 of a respective end cap 9, 10. This can also be called "tuning fork". be designated. The resonance part 24 is attached to the inside of one of the cavity 20 defining walls 21, 22, 15,16 and projects from this. The projecting part is in particular plate-shaped or rod-shaped. In the exemplary embodiment, the projecting part is plate-shaped and has two outgoing from its free end slots. It could also be provided a different number of shooters. Also, the resonance part 24 could, for example, have two U-shaped projecting parts which protrude from a base web connected to the wall.
    The resonant part 24 is preferably made of metal.
    Such a resonant part 24 could also be dispensed with, or moreover, more than one resonant part 24 could be arranged in the cavity 20. Apart from possibly existing resonance parts of the cavity 20 is free of solid materials disposed therein, so only gas-filled.
    The end caps 9,10 are thus formed as a resonance muffler, in particular as Helmholtz resonators. In resonance mufflers, the sound energy is converted into kinetic energy.
    As can be seen from FIGS. 2 to 5, the z-directions of the individual muffler elements 5 of the muffler 4 are all aligned parallel to one another. This direction represents the direction of flow through the silencer and is referred to below as the Z-direction of the entire silencer 4, which is thus parallel to the z-directions of the individual silencer elements 5. In installed in the exhaust duct 2 state of the 11/30
    12 · · · · · · · · · · · · · · · · · · · · · · · ···················································
    Muffler, the Z-direction of the muffler is aligned in the longitudinal direction of the exhaust passage 2.
    In a view of the muffler in the Z direction this has a square 5 outer contour, see. Fig. 4. The muffler could also have a rectangular outer contour in view in the Z direction. The directions perpendicular to the Z-direction and perpendicular to each other, which are parallel to the sides of this rectangular or square outer contour, are hereinafter referred to as X and Y direction. 10
    The muffler 4 has Schalldämpfereiemente 5, which are at an angle to each other with their y-directions, and therefore also with their x-directions. In the exemplary embodiment, a first part of the muffler elements 5 with its x and y directions is parallel to one another and a second part of the muffler elements is also parallel to one another with its x and y directions, the y directions of the second part of the muffler elements 5 is perpendicular to the y-directions of the first part of the muffler elements 5. The first part of the muffler elements 5 is aligned here with its y-directions parallel to the Y-direction of the muffler 4 and the second 20 part of the muffler elements 5 at right angles thereto.
    Muffler elements 5 could also be provided whose x and y directions enclose other angles with each other and / or whose x and y directions include other angles with the X and Y directions of the muffler 4 25.
    The widths b of the muffler elements 5, that is to say their expansions in the y direction of the respective muffler element, are substantially smaller than the extent of the entire muffler 4 with respect to the y direction of the respective muffler element 5. At least the width b of a respective muffler element 5 is less than half of the total extent of the muffler 4 relative to the y-direction of the respective 12/30 ························································································ · · · · · · · · · · · · ♦ 13 ..... *
    Silencer element 5, wherein a value of less than a third is preferred and a value of less than a quarter is particularly preferred.
    In the exemplary embodiment, the y-direction of a respective 5 silencer element 5 is parallel to the outer contour of the silencer 4 seen in the view, Other orientations of the silencer elements 5 and / or other outer contours of the silencer 4 are conceivable and possible. In the exemplary embodiment, adjacent silencer elements 5 lie in pairs parallel to one another with respect to their y-directions. Thus, groups of two mutually with their y-directions mutually parallel silencer elements 5 are formed. These groups are arranged in right-angled rows and columns. The y-directions of the 15 silencer elements 5 from within a row and adjacent groups within a column are at right angles to each other.
    Instead of groups of two, it would also be possible to form groups of more than two silencer elements whose y-directions lie parallel to one another. Between adjacent muffler elements 5 of a respective group is in each case a gap 6. Between the individual groups are intermediate spaces. 7
    Other arrangements of the silencer elements 5 are also conceivable and 25 possible.
    Parallel to each direction perpendicular to the Z direction of the muffler direction can be laid a straight line which at least two, preferably at least four muffler elements 5 passes.
    For connecting the individual silencer elements 5, connecting parts 25, 26 shown in FIGS. 12 and 13 are provided. The connecting part 25 has 13/30 30 ···· ······· I; «· · · ··· ····························································································································································· 27, 28, the first leg 27 is connected to the narrow sides of the mutually parallel silencer elements 5 of a respective group and keeps them at a distance. The second leg 28 is attached via a arranged on this connecting part 29 on the broad side of a muffler element S of an adjacent group. As a result, the adjacent groups are connected to each other and kept at a distance from each other.
    For connection of the muffler 4 edge lying in the muffler elements 5 serve the strip-shaped connecting parts 26. These are connected to the edge of the muffler 4 facing narrow sides and broad sides of the muffler elements 5.
    The connection of the connecting parts 25, 26 with the respective silencer element 5 by means of at least one connecting screw. In the exemplary embodiment, four connecting screws 30 are provided per connection. The respective wall, with which the respective connecting part 25, 26 is to be connected, has a bore for a respective connecting screw 30 and a nut 31, which is fixed to the inside of the wall and preferably welded, for screwing in the connecting screw 30.
    The outer walls 13, 14, 21, 22, dividing walls 15, 16 and any intermediate walls 17 of the silencer elements 5 are preferably made of metal.
    A muffler according to the invention preferably has an extension of at least 1 m in all directions at right angles to and parallel to the Z direction. A muffler according to the invention may also have substantially larger dimensions, e.g. of more than 3m in all directions perpendicular to and parallel to the Z direction. 14/30 ···· ··· ·············· ···· ft · '· · · · · · · · · · · · · · · · ··· · · ·
    Various modifications of the embodiment shown are conceivable and possible without departing from the scope of the invention. For example, the silencer could have an outer frame that is open in the Z direction and surrounds the silencer elements 5.
    A muffler according to the invention may also be used in other exhaust ducts than those which carry exhaust gas from gas turbines, e.g. B. in exhaust ducts of coal power plants, waste incineration plants, etc .. 10 When this document is talking about an exhaust pipe, it also includes exhaust stacks.
    An exhaust duct, in which a silencer according to the invention is used, can also have a cross section other than a rectangular, for example, a round, in particular circular, cross section. The muffler is in this case formed with a corresponding outer contour. For this purpose, edge-side muffler elements 5 can be designed to be longer and / or additional muffler elements 5 can be present at the edge and / or edge-side muffler elements 5 can be used, which have a cross-sectional contour deviating from the mean central muffler elements, for example a rounded, broad-sided outer wall 13 on the edge of the Have muffler facing side. 15/30 ····························································································· ··· «·· ··· ft · · · · · ··· · · 16
    Key to the figures: 1 Exhaust pipe 15 Partition wall 1a Section 16 Partition wall 1 b Branch 17 Partition wall 1c Branch 18 Sound absorption material 2 Exhaust gas channel 25 19 Interior 3 Gas switch 20 Cavity 4 Silencer 21 Outside wall 5 Silencer element 22 Outside wall 6 Interspace 23 Opening 7 Interspace 30 24 Resonating part 8 Middle section 25 connecting part 9 end cap 26 connecting part 10 end cap 27 leg 11 end 28 leg 12 end 35 29 connecting part 13 outer wall 30 connecting screw 14 outer wall 31 nut 16/30
    权利要求:
    Claims (10)
    [1]
    • ·· * > · Patent Attorneys Hofmann & Fechner • · · 9 · · · · · · · Ralf Hofmann · ^ · *. ** · β # · »T + ^ (β) 55 73 137 Thomas Fechner F +43 (0) 552273 359 0806 Feldkirch, Austria M office@vpat.at Egelseestr 65a, PO Box 61 I www.vpat.at 25311/33 / ss 130424 17 Claims 1. Silencer for an exhaust duct (2), in particular a gas turbine, with a plurality of silencer elements (5), between which intermediate spaces (6, 7) for flowing through exhaust gas, wherein a respective silencer element (5) in a direction parallel to a flow through the silencer lying z-direction is formed elongated and based on the z-direction is a length (I), relative to a direction perpendicular to the z-direction x-direction, which represents the direction of the smallest dimension of the silencer element (5), a thickness (d) and in a direction perpendicular to the z-direction and to the x-direction y-direction has a width (b) which is smaller than the length (I) of the muffler element (5), characterized in that the width (b) of a respective muffler element (5) less than half, preferably less than one third, of the total extent of the muffler related to the y-direction of the respective muffler element (5), and muffling elements (5) are present whose y-directions are angled, preferably rectangular, to stand by each other.
    [2]
    2. Silencer according to claim 1, characterized in that all the muffler elements (5) have the same outer shape, preferably the same overall design.
    [3]
    3. Silencer according to claim 1 or 2, characterized in that at least two respectively adjacent and an intermediate space (6) between them silencer elements (5) form a group of silencer elements (5) whose y-directions are parallel to each other, wherein adjacent and there is a space (7) between such groups of silencer elements (5), 17/30 • · «· · · · · · · 17 17 17 17 17 17 17 In which the parallel y - directions of the silencer elements (5) of one group are angled, in particular at right angles to the parallel y-directions of the muffler elements (5) of the other group stand. Silencer according to claim 3, characterized in that the groups of silencer elements (5) are arranged in rows and columns, the y-directions of the silencer elements (5) of groups of silencer elements (5) which are adjacent within a row and within a column perpendicular to one another stand. Silencer according to one of claims 1 to 4, characterized in that a respective silencer element (5) at least over a portion of its relation to the z-direction expansion has an outer shape of a cuboid, which with its sides parallel to the x-, y- and Z direction is aligned. Silencer according to one of claims 1 to 5, characterized in that at least a part of the silencer elements (5), preferably all silencer elements (5), based on the z-direction, a central portion (8) and end caps (9, 10) adjoining on both sides. wherein the end caps (9,10) close the Schalldampferelement (5) with respect to the z-direction. A muffler according to claim 6, characterized in that the thickness (d) of a respective muffler element (5) at least over an end portion of the respective end cap (9, 10), which in the z-direction relative to the respective end (11, 12) the silencer element (5) adjoins, reduced to the respective end of the silencer element (5). Silencer according to claim 6 or 7, characterized in that the central portion (8) has an outer shape of a cuboid, which is aligned with its sides parallel to the x, y and z direction. 19 • 4 94 4994 ·································································································································································································································
    [4]
    9. Silencer according to one of claims 1 to 8, characterized in that at least part of the silencer elements (5), preferably all the silencer elements (5), at least over a portion of their z-direction related expansion are formed as absorption silencer.
    [5]
    10. Silencer according to claim 9, characterized in that the outer walls (13, 14) of a respective silencer element (5) at least over a portion of the z-direction-related expansion of the silencer element (5) are at least partially formed by a perforated plate.
    [6]
    11. Silencer according to one of claims 6 to 10, characterized in that the middle labschnitt (8) at least part of the muffler elements (5), preferably all muffler elements (5), forms an absorption silencer.
    [7]
    12. Silencer according to one of claims 1 to 11, characterized in that at least part of the muffler elements (5), preferably all muffler elements (5), are designed as a resonance muffler.
    [8]
    13. Silencer according to one of claims 6 to 12, characterized in that at least one of the end caps (9, 10) of at least a part of the muffler elements (5), preferably all muffler elements (5), is designed as a resonance muffler.
    [9]
    14. Silencer according to claim 13, characterized in that the end cap (9, 10) or the respective end cap (9.10) for forming a resonance muffler has an inner cavity (20) via at least one opening (23) in the end cap (9,10) is connected to the outside space. 19/30 20. "·····························································
    [10]
    15. Silencer according to claim 14, characterized in that in the cavity (20) at least one oscillatable resonant part (24) is arranged. 20/30
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    同族专利:
    公开号 | 公开日
    PL2994620T3|2020-03-31|
    EP2994620B1|2019-09-11|
    ES2759490T3|2020-05-11|
    EP2994620A1|2016-03-16|
    EP2994620B8|2019-10-16|
    AT513843B1|2014-08-15|
    WO2014179821A1|2014-11-13|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US4127183A|1978-02-17|1978-11-28|American Air Filter Company, Inc.|Silencer device|
    US5532439A|1994-06-23|1996-07-02|Transco Products Inc.|Silencer assembly with acoustical modules therein|
    US6260658B1|1998-10-23|2001-07-17|Donaldson Company, Inc.|Silencer for a gas turbine|
    EP1628004A1|2004-08-19|2006-02-22|Aarding Thermal Acoustics B.V.|Sound damper, sectional component and method for the production of a splitter|
    DE102008017743A1|2007-09-07|2009-03-12|Poroson Gmbh|Muffler for component i.e. air filter, of internal combustion engine in motor vehicle, has connecting member including hollow space that is sectionally formed by absorber element with layer made of sound-absorbing material|US10753638B2|2016-12-13|2020-08-25|Solar Turbines Incorporated|Ventilation panel with panel silencer for a turbine package enclosure|
    EP3929410A1|2020-06-23|2021-12-29|General Electric Technology GmbH|Exhaust duct for a gas turbine engine|
    法律状态:
    2015-08-15| PC| Change of the owner|Owner name: FIVEWATER GMBH, AT Effective date: 20150630 |
    2019-11-15| PC| Change of the owner|Owner name: JORD INTERNATIONAL PTY LTD, AU Effective date: 20191011 |
    2022-01-15| MM01| Lapse because of not paying annual fees|Effective date: 20210506 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA375/2013A|AT513843B1|2013-05-06|2013-05-06|Silencer for an exhaust duct|ATA375/2013A| AT513843B1|2013-05-06|2013-05-06|Silencer for an exhaust duct|
    EP14719188.6A| EP2994620B8|2013-05-06|2014-03-31|Muffler for an exhaust-gas duct|
    ES14719188T| ES2759490T3|2013-05-06|2014-03-31|Muffler for an exhaust gas channel|
    PCT/AT2014/000065| WO2014179821A1|2013-05-06|2014-03-31|Muffler for an exhaust-gas duct|
    PL14719188T| PL2994620T3|2013-05-06|2014-03-31|Muffler for an exhaust-gas duct|
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