EP3120074A1 - Dispositif de postcombustion thermique d'air d'échappement - Google Patents

Dispositif de postcombustion thermique d'air d'échappement

Info

Publication number
EP3120074A1
EP3120074A1 EP15712287.0A EP15712287A EP3120074A1 EP 3120074 A1 EP3120074 A1 EP 3120074A1 EP 15712287 A EP15712287 A EP 15712287A EP 3120074 A1 EP3120074 A1 EP 3120074A1
Authority
EP
European Patent Office
Prior art keywords
cone
burner
wall
symmetry
exhaust air
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.)
Granted
Application number
EP15712287.0A
Other languages
German (de)
English (en)
Other versions
EP3120074B1 (fr
Inventor
Eberhard Wahl
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.)
Duerr Systems AG
Original Assignee
KBA Metalprint GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by KBA Metalprint GmbH and Co KG filed Critical KBA Metalprint GmbH and Co KG
Publication of EP3120074A1 publication Critical patent/EP3120074A1/fr
Application granted granted Critical
Publication of EP3120074B1 publication Critical patent/EP3120074B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
    • F23C9/006—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber the recirculation taking place in the combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2202/00—Fluegas recirculation
    • F23C2202/20—Premixing fluegas with fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
    • F23C2900/07002—Premix burners with air inlet slots obtained between offset curved wall surfaces, e.g. double cone burners

Definitions

  • the invention relates to a device for thermal afterburning of exhaust air according to the preamble of claim 1.
  • KBA-MetalPrint from 03/2008 is known with the "thermal exhaust air cleaning TNV" a device for thermal post-combustion of exhaust air with a burner whose burner cone opens in the axial direction of the burner to the downstream cone opening in a funnel shape , The burner is arranged with at least the burner cone in a space upstream of a combustion chamber and surrounded by exhaust air to be treated. In the upstream of the burner exhaust gas stream is provided with the clean gas flow heat energy exchanging shell and tube heat exchanger.
  • DE 37 38 141 A1 discloses a burner whose burner cone engages around a fuel nozzle tube.
  • the cone has in its truncated cone jacket-shaped opening wall portion through openings, through which exhaust gas from a leading the exhaust gas and surrounding the cone channel can flow into the cone interior.
  • exhaust gas flows into the combustion chamber through an annular gap formed between the combustion chamber diaphragm and the cone.
  • the burner cone is made of so-called engineering ceramics, in particular of silicon infiltrated silicon carbide.
  • DE 196 54 009 A1 discloses a cone burner with a burner cone made up of two conical shell-shaped partial bodies which are offset radially relative to one another at their end sections considered in the circumferential direction and thereby form tangential inlet openings for combustion air.
  • the cone In the area of the cylindrical initial part the cone is atomized via a nozzle preferably liquid fuel into the cone interior.
  • gaseous In the area of the tangential inlet openings, gaseous is additionally preferred by radially inwardly pointing openings in the partial body wall
  • Fuel injected into the tangential incoming combustion air can be assisted by preheating the supplied combustion air or enriching it with recirculated exhaust gas.
  • DE 41 13 681 A1 and DE 195 45 310 A1 disclose comparable burner designs to DE 196 54 009 A1, wherein the radial injection into the tangential inlet openings in DE 41 13 681 A1, however, via radially directed openings in parallel to the inlet openings extending supply ducts he follows. Again, for gas turbine or atmospheric furnaces return of a portion of the exhaust gas in the fresh air supplied to form the combustion air can be beneficial.
  • DE 195 45 310 A1 a plurality of cone-shaped part bodies are provided to form the burner cone, in the illustration of an exemplary embodiment. The Operakegelachsen the Operakegelschalen lie on a common cone axis, so that a straight interrupted by entry channels
  • DE 195 45 309 A1 discloses a premix burner to be used, for example, in a gas turbine group with two conical shell-shaped partial bodies, which form slot-like tangential inlet openings between them for the entry of compressed combustion air generated in a compressor.
  • gaseous fuel is injected in the area of the tangential entry slots. If, at partial load, operation is not ensured solely by injection in the region of the slots, fuel is additionally injected via a nozzle via a lance in the area of the return flow zone, thereby avoiding pulsation between full-load and part-load operation.
  • In a cavity between the lance tube limiting the lance and the coaxial in this arranged raw fuel r flows combustion air to the lance head opening in the region of the return flow zone.
  • CH 684 962 A5 discloses a burner for operating an internal combustion engine, a combustion chamber of a gas turbine group or a firing installation with a burner cone likewise formed by partial cone bodies, wherein fuel is injected in the region of the tangential inlet slots. If required, in addition to the tangential introduction, axial combustion air may at most be introduced into the conical cavity downstream of the ignition electrodes.
  • WO 2006/048405 A1 also relates to a burner for a heat generator.
  • Fuel gas flow transition channels forming internals provided
  • US Pat. No. 6,599,121 B2 relates to a burner of a turbo-power machine with a plurality of conical part shells, wherein combustion air is provided with fuel in the slots formed therebetween and introduced tangentially into the interior of the cone.
  • a partial cross-sectional taper is provided in the axial course of the cone flow by appropriate shaping or internals in at least one peripheral portion, through which the flow profile is deformed.
  • the cross section tapering peripheral portion extends in a downstream last third of the burner cone by 2 to 45 °, in particular 5 ° to 15 °, inclined to the burner axis.
  • EP 0 629 817 A2 discloses a firing plant which consists essentially of a combustion chamber with a premix burner. This is due to the combustion The flue gas produced by the fuel is passively returned.
  • the burner cone comprises two tangential inlets formed by displacement of two conical partial bodies for the entry of the combustion air. The burner is fresh air in the foot area axially and in the
  • Tangential entries are provided fuel nozzles.
  • DE 100 22 969 A1 relates to a burner for operating an aggregate for producing a hot gas with a burner cone formed by two fan-shaped part cone bodies.
  • a variety of flow obstacles protrude into the flow.
  • openings for the supply of fuel may be provided in the region of the tangential air openings.
  • EP 0 780 630 A2 relates to a burner for a heat generator.
  • the burner comprises a conical swirl generator and a fuel nozzle.
  • the burner cone comprises two tangential inlets formed by displacement of two conical partial bodies for the entry of the combustion air.
  • the latter can be enriched with recirculated exhaust gas for preheating.
  • radially or quasi-radial arranged openings are provided, through which a purge air flows into the cross-section induced by the size of the fuel nozzle.
  • JP 2004 053 048 A discloses a premix burner, wherein axial bores appear in an end wall delimiting the cone at the foot end, which open on the other side in a pilot mixed gas line.
  • the cone comprises windows through which a main fuel gas mixture flows from the outside into the interior of the cone.
  • US 2007/0254254 A1 relates to a conical cyclone oxidation burner, which the side of its smaller cross-section of coal-containing gas from a pyrolysis plant is supplied.
  • Burner basket can in the cone wall via hoses fuel z. B. be supplied in the form of propane. Also in the wall of the cone-shaped burner basket rings of openings are provided on the inner sides
  • Deflector flaps for generating a cyclonic flow.
  • GB 1 276 199 A also relates to a thermal afterburner system of contaminated exhaust air with a burner cone arranged in the exhaust air flow and comprising radial air openings.
  • the invention is based on the object, a device for thermal
  • a special air duct in the burner or burner cone without the mixing and thus the effectiveness of the afterburning being impaired.
  • a tangential air inlet and / or fußground paragraph konusmantelnah predominantly axially entering air inlet and / or a specific actual or effective conicity, for example in a range for the opening angle within the angular range of z. B. 10 ° to 30 °, in particular 14 ° to 24 °, or an area for the inclination of the cone wall of the effective inner or actual cone within the
  • Be burner cone with tangential Beereintriffsöffitch These can preferably by forming the Brennerkonusmantels or at least a section with
  • radiärsymmetrischer in particular fan-like and / or twisted arrangement of several, z. B. more than two, preferably four, wall sections of a single or preferably multi-part running wall formed.
  • the formation of the wall protecting against excessive temperatures air basket can advantageously by radial air inlet openings in the wall and / or
  • an annular sheath flow forming the air basket can in an advantageous development between the foot-side front end of the cone shell and an annular, the frontal burner nozzle profile surrounding additional guide element, for. B. baffle, done.
  • the air basket can instead or preferably in addition to the axial supply air flow and / or the swirl flow and / or the preferred cone geometry, d. H. the shell-like structure and / or the conicity, radial air inlet openings, for example as injector, be provided in the cone sheath.
  • the or part of the injector openings may be variable in their degree of opening in order to adjust the air flow and the sheath flow can.
  • Air inlet openings in the region of the downstream cone end are improved by near or in the plane of the outlet opening of the burner cone in the space surrounding the burner cone on the outside surrounding space obstructing flow obstacles. This is especially true in connection with the annular sheath flow, which must be broken at the cone end and swirled with the rest of the supply air stream.
  • the burner cone can, in particular in addition to the axial supply air flow and / or the swirl flow and / or the shell-like conical structure and / or the taper and / or, the radial air inlet openings and / or the flow obstacles comprise a downstream end plate through which a necessary pressure difference in the cone interior and / or termination of tangential inlet openings is effected.
  • Burner and Nachverbrennungsvoriques are z. B. executed in such a way that during operation of the burner, the exhaust air to a temperature level of> 600 ° C, especially greater 650 ° C, preferably> 700 ° C, z. B. about 750 ° C are heated at which the pollutants, eg. As hydrocarbons, decompose with the oxygen from the exhaust air in CO / C0 2 and water.
  • the pollutants eg. As hydrocarbons, decompose with the oxygen from the exhaust air in CO / C0 2 and water.
  • the z. B. a significant and / or compared to the z. B. in Germany applicable limits contains increased hydrocarbon load.
  • the exhaust gas or exhaust air stream to be treated and / or surrounding the burner cone contains at least 5 g / m 3 of hydrocarbon compounds.
  • a heat exchange is provided in the clean gas flow, by means of which thermal energy can be delivered to a fluid flow for a process or for heating the system which delivers the exhaust air to be purified.
  • FIG. 1 is a schematic representation of an industrial plant downstream Nachverbrennungsvortechnik.
  • FIG. 2 is an enlarged view of the afterburning apparatus of FIG. 1;
  • FIG. 1 is a schematic representation of an industrial plant downstream Nachverbrennungsvoroplasty.
  • Fig. 3 is a schematic representation of a front part of
  • Fig. 4 is a perspective view obliquely from the front for an embodiment of
  • Fig. 5 is a rear perspective view of one embodiment of the burner;
  • Fig. 6 is a side view of an embodiment of the burner;
  • Fig. 7 is a schematic diagram for a) a first and b) a second section through the wall of the burner;
  • FIG. 8 shows a schematic sectional view in longitudinal section through the burner in the region of an outlet opening of the fuel nozzle
  • Fig. 9 is a slightly perspective view from the front for an embodiment of the burner.
  • a device 01 for thermal aftertreatment in particular for
  • a gaseous for example contaminated fluid stream 02, z. B. a Nachverbrennungsvorraum 01
  • a gaseous fuel 03 can be operated or operated burner 04, in particular a fuel supply 07, z. B. fuel nozzle 07, and a so-called.
  • Brennerkonus 06 comprehensive cone burner 04 which with at least his
  • the fuel nozzle 07 is the preferred gaseous fuel 03, z.
  • natural gas propane or LPG
  • propane or LPG can be fed into the space surrounded by burner cone 06 (see, for example, FIGS. 1, 2 and 3).
  • exhaust air for the gaseous fluid to be purified both a fluid actually present as process exhaust air or “cold exhaust gas” and as a “hot” exhaust gas, in particular as combustion exhaust gas and thermally to be treated by post combustion a fluid stream 02 present as exhaust air or exhaust gas flow 02.
  • the polluted exhaust air is heated by an open flame and oxidizable pollutants, such as hydrocarbons, at high temperatures, eg. As temperatures> 600 ° C, especially greater than 650 ° C, preferably> 700 ° C, oxidized.
  • oxidizable pollutants such as hydrocarbons
  • hydrocarbons are oxidized to carbon dioxide and water.
  • the oxygen required for this purpose is for example as a
  • the burner 04 is here z. B. not specifically with - in particular compressed - ambient air (ie, a low-pollution clean air gas mixture) fed, but is located in an atmosphere formed by exhaust air or environment with z. B. a hydrocarbon concentration of at least or more than 0.5 g / m 3 (25 ° C, 1 .013 mbar), in particular of at least 1, 0 g / m 3 . D. h., The burner 04 is in addition to the fuel rohgasschau 03 only a polluted, but an oxygen content of z. B. at least 5%, preferably at least 10% entrained exhaust air supplied with a hydrocarbon load of at least 0.5 g / m 3 .
  • Execution of the post-combustion device 01, the burner 04 or its burner cone 06 project directly into a pipe section of the exhaust air stream 02 of the system 06 discharging pipe or be provided in such a pipe section.
  • This pipe section can be widened like a chamber in terms of its cross section with respect to a raw gas inlet and a clean gas side outlet section of the pipeline.
  • the torch 04 is part of a self-contained one
  • Exit opening 13 are z. B. dimensioned and arranged relative to each other, that between the outer circumference ausgans document defining edge of the burner cone 06 and the inlet opening-defining edge of an inlet-side, in particular end-side, combustion chamber wall 17 an entrance slit 18 is formed, through which raw gas from the raw gas space 09 directly, ie without first entering a trained inside the burner cone 06 Vormischhunt the burner cone 06 can flow into the combustion chamber 1 1.
  • This entrance slit 18 can as a - possibly up to a few places between the burner cone 06 and the combustion chamber 1 1 arranged support and / or holding elements - continuously circulating or as a total of z. B. over an angular range of at least 270 °, preferably at least 300 ° of the circumference reaching free entrance gap 18 be executed.
  • Inlet opening into the combustion chamber 1 1 and the plane of the outlet opening 13 of the burner cone 06 need not but can fall together. However, they can also be mutually spaced parallel to each other and in the axial direction of the burner 04, whereby the flat in the event of collapse, the Brennerkonusrand circumferential gap cross-sectional area in the axially offset case forms a frustoconical surface.
  • the fluid to be cleaned 02 can be supplied as Rohgasstrom 02 upstream or Rohgas paragraph of the system 03 via a corresponding pipeline.
  • the feed into the raw gas space 09 takes place via a flow guide along a route section through a flow cross section 21 which is bounded at least on one side by the outside of a combustion chamber wall 22, in particular a longitudinal combustion chamber wall 22.
  • a flow guide along a route section through a flow cross section 21 which is bounded at least on one side by the outside of a combustion chamber wall 22, in particular a longitudinal combustion chamber wall 22.
  • a cylindrical combustion chamber 1 1 and a combustion chamber 1 1 at least to the length of the combustion chamber 1 1 concentrically surrounding this cylindrical shell 23, z. B. outer shell 23 of the
  • Nachverbrennungsaggregates 01, 21 may be formed as a flow cross-section 21 on at least one section of an annular annular gap. This can - up to possibly provided support and / or holding elements between the combustion chamber 1 1 and sheath 23 - as reaching over the entire circumference of the circumference or z. B. as a total of at least 80%, preferably at least 90% of the undisturbed annular surface
  • exhaust air of the exhaust air stream 02 which is subsequently to be burned further downstream can absorb energy in the form of heat by exchanging heat with the combustion chamber outer wall 22.
  • a heat exchanger 24 for the recuperative heat exchange, z. B. in a design as a tube bundle heat exchanger 24 with a plurality of parallel-flow tubes 26, be provided through which a heat exchange between already nachverbranntem hot clean gas of the clean gas flow 08 and still to be purified raw gas of the crude gas stream 02 takes place or can be done.
  • the heat exchanger 24 may in principle be structurally integrated as a separate unit upstream of the device 01 or, preferably, in the post-combustion unit 01 and downstream of the raw gas inlet 19 in the flow path.
  • the raw gas can in principle either be guided in the tubes 22 of the heat exchanger 24 or, preferably, the tubes 26 of the heat exchanger 21 flow around on the outside.
  • the clean gas can flow around the tubes 26 of the heat exchanger 21 on the outside or preferably in the parallel tubes 22 of the
  • Heat exchanger 24 may be guided to a common collection and discharge space 27, before the clean gas flow 08 leaves the device 01 through a clean gas outlet 28.
  • the unpurified exhaust air is passed over the tube bundle of the heat exchanger 24 in the cross / counterflow.
  • the exhaust air is preheated and flows in the outer annular gap 21 around the combustion chamber 1 1 around to the other end of the combustion chamber 1 1, where it is deflected in the direction of the burner 04.
  • Part of the exhaust air flows in an advantageous, set out in more detail below
  • Embodiment from the side and / or from the upstream end side by the burner 04 itself and also serves as an oxygen supplier for combustion in the burner 04, another part flows past the burner 04 through the example annular entrance gap 18 into the combustion chamber 1 first Both parts are then with the hot burned exhaust air / gas mixture from the burner cone 06 to a
  • Design of the combustion chamber 1 1 is advantageously dimensioned such that the residence time in the combustion chamber 1 1, z. B. at least 0.5 s, designed so that the proportions of the legally permitted residual contents of CO, NO x and unburned hydrocarbons are exceeded.
  • the burnt, purified exhaust air then flows through the tubes of the heat exchanger 24 and gives off a large part of their heat to the inflowing unpurified exhaust air.
  • an adjustable flap 31 be provided remotely variable flow rate.
  • a gas conveyor 32 for. B. designed as a fan, as a compressor or as a pump conveyor, be provided.
  • a device for heat recovery 33 may be provided in the flow path of the clean gas stream 08.
  • the heat recovery can be based on any technology, but is preferably recuperative with a heat over a heat exchanger 36 between the still hot clean gas flow 08 and a fluid of Nutzumble textbooken heat transfer fluid flow 37, z. B. a Schufluid Vietnameselaufs 37, executed.
  • the device for heat recovery 33 may in principle also be structurally integrated in the post-combustion device 01 configured as an assembly 01, it is preferably configured as an independent sub-assembly 33 of the post-combustion device 01 in a system for exhaust air treatment. It may, for example, a heat dissipation via, for example, the flow guidance by means of an actuating means 38, for example an actuator 38, via an adjusting element 39, z. B. a system adjustable flaps 39, be remotely variable.
  • actuating means 38 for example an actuator 38
  • a system adjustable flaps 39 be remotely variable.
  • Clean gas stream 08 ' which downstream, for example, z. B. is to give a fireplace 41 to the environment is varied within limits. This may possibly be necessary to comply with the dew point limit to be observed for the chimney flue.
  • brach cone 06 does not designate a cone as a body in terms of its geometric meaning with a regular and, for example, uninterrupted shell-side rotation surface, but - as in connection with cone burners in common usage - a one- or multi-part component, which is a in the cross-sectional area towards the outlet funnel-shaped premixing chamber 42 laterally limiting one or more parts, possibly interrupted by air passage openings to the outside cone sheath 43 or, hereinafter also referred to as wall 43 or
  • Wall structure 43 includes (see, for example, Fig. 4 and Fig. 5). This is funnel-shaped at least in a longitudinal section in the direction of the outlet opening of
  • Wall 43, or wall structure 43 can, viewed in one or more cross-sections perpendicular to the axial direction of burner 04, form an irregular peripheral line, which may be interrupted in places, as shown in FIG. 6 and FIG.
  • the space surrounded by the burner cone 06 or its wall 43 or multi-part wall structure 43 forms the premixing chamber 42, in which (residual) oxygen-containing exhaust gas and the fuel 03 can mix.
  • the axial direction of the burner 04 is z. B. by the course of a center of gravity or symmetry axis S of at least in a funnel-shaped opening
  • Symmetry axis S be executed.
  • radial symmetry or rotational symmetry is here to understand a form of symmetry in which the rotation of an object by a certain angle about an axis of symmetry brings the object again with itself to cover.
  • a rotation of 360 n forms the object on itself.
  • the fuel nozzle 07 comprises at least one fuel outlet 44 for delivering the z. B. liquid or preferably gaseous fuel 03 in the interior of the fuel nozzle 07
  • the fuel nozzle 07 can basically in any geometry with one or more in the direction
  • Premixing chamber directed openings 44 may be designed as an outlet or outlets. However, it is preferably - at least in the region of its cone-shaped end portion - tubular and designed with a frontally centrally provided circular disk or annular fuel outlet 44 forming opening 44. In a variant, further, possibly smaller openings may be provided symmetrically around the central opening 44.
  • the fuel nozzle 07 and the burner cone 06 are viewed in the axial direction advantageously arranged such relative to each other, so that at least one foot portion of the burner cone 06, z. B. an upstream end of the wall 43 or a specially provided Konusfuß 46, which carries the upstream end of the wall 43 and the wall construction 43, the fuel nozzle 07 at least at the level of the at least one Brennstoffauslasses, but preferably on a fuel outlet upstream extending longitudinal section , z. B. in the manner of a cuff surrounds.
  • the term upstream, upstream, downstream and downstream refers to the axially-oriented flow direction of the fuel in the outlet region of the fuel nozzle 07, unless stated otherwise or obviously different.
  • this forms the upstream end-side termination of the burner cone 06 and carries the one- or multi-part conical shell-side wall 43 or wall structure 43. Otherwise, the
  • the conical base 46 may be structurally attributable to the fuel nozzle 07, with a detachment between the cone foot 46 and the wall 43 or wall structure 43 taking place to remove the premixing chamber 42.
  • the cone foot 46 in a preferred embodiment structurally be attributable to the burner cone 06, wherein for removing the burner cone 06 a release of the
  • Wall 43 and wall structure 43 bearing cone base 46 of the burner nozzle 07 or an attachment 47 of the burner nozzle 07 between the fuel nozzle 07 and cone base 46 takes place.
  • the cone foot 46 can also be detachably connected to the wall 43 or wall structure 43.
  • the foot base 49 may be formed by the side facing the cone interior of a designed as a closure ring or spoke ring Konusfußes 46, viewed in the circumferential direction of the fuel nozzle 07 several predominantly extending in the axial direction and / or a predominant axial flow permitting
  • the footing 49 also by a completely open space between the upstream end of the wall 43 and the fuel nozzle 07 may be formed at the axial height or axially upstream of the fuel nozzle end, if the cone 06, for example, not on the burner nozzle 07 or this stormaufwarts continuing tubular piece, but from the outside, z. B. on a Abgaskamme- or
  • Combustion chamber wall is attached.
  • the bushings 49 are z. B. such that they cause the exit of the exhaust air into the cone interior in a predominantly axial flow.
  • the cone foot 46 is formed by a component in the manner of a face plate with a preferably annular, for example, the preferred tubular fuel nozzle 07 receiving in the assembled state receiving opening and z. B. releasably connected to the fuel nozzle 07 non-positively and / or positively.
  • the Konusfuß 46 is preferably designed annular and may be formed in the manner of a clamping ring set, wherein one of the two clamping rings, the wall 43 and wall structure 43 carries and frictionally connected by a clamping ring with the fuel nozzle 07 on the outer circumference.
  • the cone foot 46 by a front plate z. B. in execution of a flange 46, in particular flange rings 46, formed with exemplary annular recess, which with a, for example, on the circumference of the fuel nozzle 07 with a flush or preferably with an offset to the nozzle end side of the
  • Fuel nozzle 07 arranged as a flange 47, in particular flange 47, formed attachment 47 is connectable (see, for example, Fig. 8).
  • the z. B. designed as a clamping ring or flange 46 cone base 46 is preferably arranged in the assembled state with its circular opening centric to the axial direction of the burner 04.
  • the wall 43 or the wall construction 43 is arranged with its stromaufwartigen end at least on a portion of the circumference in sections, advantageously predominantly, preferably in the entire circumferential region radially spaced from the lateral surface of the particular tubular burner nozzle 07, so between the stromaufwartigen end of the wall 43 and the wall construction 43 at least in the circumferential direction of the burner nozzle 07 sections, but preferably - except for possibly provided support and / or holding elements - fully in the radial direction, a gap with a distance d, z. B. a distance d of at least 1 mm, advantageously of at least 5 mm, in particular at least 10 mm between the combustion nozzle 07 and the wall 43 or wall construction 43 is present. Possibly.
  • annular and z. B can in this end an annular and z. B. except for possibly provided support and / or holding elements freely or partially permeable space between the burner nozzle shell and wall 43 or wall construction 43 with a ring width of z. B. at least 1 mm, preferably at least 5 mm, in particular at least 10 mm, are present. The possibly
  • interrupted bottom clearance in this case represents a fluid-through passage in a front footing 49 of the burner cone 06.
  • the bottom 49 denotes the narrower upstream end of the burner cone 06, which surrounds the downstream end of the fuel nozzle 07 and the latter together with the upstream end the Vormischklammer 42 forms.
  • Burner nozzle 07 encompassing - cone 46 carries this the upstream end of the wall 43 and the wall construction 43 at least on part of the circumference in sections, advantageously predominantly, preferably circumferentially radially spaced from the surface of the particular tubular burner nozzle 07, so that on the premixing chamber facing side of the cone foot at least in the circumferential direction of the burner nozzle 07 sections, but preferably fully a distance d in the radial direction, z. B. a distance d of at least 1 mm, advantageous of at least 5 mm, in particular at least 10 mm between the combustion nozzle 07 and the wall 43 or wall construction 43 is present.
  • a preferred embodiment are in Konusfuß 46 in the circumferential direction a plurality of opening into the gap, z. B. as air inlet nozzles 48 effective
  • Bushings 48 provided.
  • the passages 48 open in the interior of the premixing chamber in the bottom of the foot 49 or on the bottom surface 49 bounding the premix chamber side end face of the particular in the manner of a face plate
  • the bushings 48 end, for example, z. B. coming from the upstream end side of the Konusfußes 46 forth, formed in a between the upstream end of the wall 43 and wall construction 43 and the Brenstoffdüsenmantel space.
  • the bushings can basically any, z. B. as round holes or in the form of spaces formed by spoke-like struts. In an advantageous embodiment, they are designed as slit-like channels in a rectangular shape, which establishes a guided flow for the purpose of forming an air cushion or basket on the wall inside.
  • the burner 04 advantageously has at least one opening of the at least one space 09 surrounding the burner 04, preferably leading into the cone interior at the front side Feedthrough 48 (as an open ring or as a plurality of feedthroughs 48) preferably in an upstream foot portion at the axial height or upstream of the downstream end of the fuel nozzle 07, ie, depending on the design thereof, the raw or outlet port 14 thereof.
  • the without specially provided cone foot 46 z. B. annular possibly open up to support and / or holding elements or by the cone foot 46 entirely or preferably only partially completed upstream end of the burner cone 06 and the burner cone 06 formed by the premixing chamber is also referred to as the bottom 49 of the burner cone 06 and is in a preferred embodiment of gaseous fluid, for example, exhaust air from the raw gas space 09, flowed through.
  • a flow through the foot base 49 can in this case take place with the flow component running predominantly in the axial direction of the burner 04, ie. h.,
  • the flow characterizing vector has in the axial direction compared to a radial component larger
  • the burner 04 is thus in the result between the upstream end of the on or multi-part wall of the burner cone 06 and the outer circumference of the surrounding of a foot portion of the burner cone 06 burner nozzle 07 at the level or upstream of the fuel nozzle orifice formed with a at least predominantly in the axial direction of gaseous fluid to flow through the bottom 49.
  • the predominantly axially extending lead-through 48 preferably leads from an end-side opening to the environment to the mouth lying in the bottom 49.
  • a completely continuous or partially multi-part circuit can be provided on a radially inner circle lying opposite the mouth of the one or more foot-side bushings 48
  • Guide element 51 may be arranged radially between the at least one fuel outlet and the passages. By the guide element 51 and the relevant section flowing through the respective passage 48 fluid, z. As exhaust gas, directed in a direction inclined to the symmetry axis S direction in the direction of the funnel-shaped opening wall 43 and forms at this a sheath flow. Through all-round bushings 48 in conjunction with a partially or continuously arranged over the circumference guide element 51, z. B. baffle 51, an annular sheath flow from the fluid, z. B. the exhaust gas from the
  • the guide element 51 is preferably formed as a fully extending guide plate 51 and is formed for example in the form of a truncated cone opening which opens downstream in the axial direction.
  • the measured against the symmetry axis inclination angle ( half the opening angle) of z. B.
  • Kontsumpfmantelartig shaped baffle 51 should in the range of the opening for the cone portion preferred angle range, for. B. in the range of 10 ° to 20 °, in particular 12 to 16 °.
  • the guide element 51 formed in particular as a guide plate 51 extends in the axial direction z. B. at least from the height of the downstream end of the fuel nozzle 07 shell side limiting Pipe piece forth over at least a length of 10 mm, preferably at least 20 mm.
  • the baffle 51 should initially extend tubular over the length of the straight entrance section and following the bend of the wall 43 still over at least 10 mm, preferably at least 20 mm ,
  • the burner cone 06 as a one-part or multi-part component comprises a premixing chamber 42 opening funnel-shaped on at least one longitudinal cone section in the cross-sectional area.
  • the burner cone 06 or its wall 43 projects on the fuel outlet 44 in the axial direction of the fuel outlet 44 Burner 04 downstream, funnel - shaped cone longitudinal section a section of the premixing chamber with an increasing distance from the
  • the torch cone 06 can, as shown here in the example, on its entire length - for example, except for a possibly provided specifically for holding the cone foot 46 and / or a possibly specifically for stability and / or functional reasons provided closing element 53 - be funnel-shaped opening. In unillustrated embodiment, he can have a constant cross-sectional area
  • the burner cone 06 downstream of the funnel-shaped opening section may have a re-tapered section.
  • Embodiment - which relates to the inner wall surface area - in at least one of the opening cone longitudinal section in one piece and / or rotationally symmetrical about the coincident with the axis of symmetry axial direction of the burner 04 be executed. This may also be the case irrespective of possibly provided air passage openings for the wall 43, which may then be interrupted at certain points. In this
  • Wall structure 43 of the burner cone 06 extends this in axially spaced sections on circular lines of varying radii, wherein the space surrounded by the wall 43 and 43 wall space in the opening cone longitudinal section has the shape of a truncated cone and such, with the wall 43 over the entire surface in
  • Touch contact (virtual) truncated cone can record.
  • the individual shell-like wall sections 43.1; 43.2; 43.3; 43.4 of the multi-part wall construction 43 when trained as truncated cone shells with their considered in cross-section lines on circular lines or training as Pyramidenstupfrow with their cross-sectional lines on a closed polygonal pyramidal base arranged, with the wall 43 and wall structure 43 surrounded space in itself opening cone longitudinal section in the first case has the shape of a truncated cone and in the second case of an m-side truncated pyramid (here then with n m). In both cases, this can by the wall 43 and
  • Wall structure 43 defined interior thus accommodate a maximum (virtual) truncated cone, the area in the first case with the entire surrounding the interior wall 43 and wall structure 43 and in the second case along the line
  • the burner cone 06 outwardly surrounding and / or enveloping wall 43 or wall construction 43 on the entire or at least a portion of the funnel-shaped cone longitudinal section in the axial direction perpendicular to the cross-section viewed at least one
  • Exhaust air inlet openings 54 through which to be treated exhaust air from the space surrounding the burner can flow into the burner interior.
  • these exhaust air or air inlet openings 54 are formed as radially outwardly from the circumferential line elevating tangential inlet openings 54 for a tangential air inlet of the burner cone 06 surrounding air or exhaust air.
  • These tangential inlet openings 54 which are preferably slit-shaped or slit-shaped in the longitudinal direction of the burner 06, are preferably formed by the fact that, viewed at the axial height of a relevant inlet opening 54 in the circumferential direction, the inlet area 54 forms adjacent edge areas between them
  • Circumferential sections of a one- or multi-part wall 43 or wall construction 43 with respect to the symmetry axis S are radially spaced from each other. Basically, these inlet openings 54 by the corresponding configuration of
  • Wall sections 43.1; 43.2; 43.3; 43.4 be formed.
  • Premixing chamber on the outer side bounding inner wall of the wall 43 and wall structure 43 of Brennerkonus 06 formed at least in the funnel-shaped cone longitudinal section in shape and structure for receiving a maximum (virtual) Kegelstupfes largest cross-sectional profile, which is defined by that he at least two in the axial direction of each other
  • the burner cone 06 thus preferably comprises at least in the funnel-shaped opening Brennerkonusab mustard the wall 43 n, z. B. more than two or even at least four by the example fan-like arrangement of preferably (partially) shell-like wall sections 43.1; 43.2; 43.3; 43.4 formed, circumferentially spaced and radially each from the preceding circumferential shell portion - in particular outwardly - radially rising tangential inlet openings 54 for a tangential air inlet of the burner cone 06 surrounding exhaust air.
  • shaping are the n radially symmetrically offset wall sections 43.1; 43.2; 43.3; 43.4 about a respective parallel to the axial direction or axis of symmetry S extending imaginary axis with respect to a closed truncated cone shell structure or
  • Pyramid stump sheath structure forming orientation twisted arranged.
  • the axes cut z. B. in this case all a concentric about the axis of symmetry S extending circular line equidistant from each other in the circumferential direction.
  • wall sections 43.1; 43.2; 43.3; 43.4 a fan-shaped conical surface is formed in the circumferential direction.
  • the pitch cone axes are formed in the form of part cone shells wall sections 43.1; 43.2; 43.3; 43.4 not on a common cone axis, so that the o. G. tangential inlet openings 54 in their opening cross section on the outside of the wall 43 radially each rise from the circumferentially preceded before circumferential peripheral portion.
  • These shell segments 43.1; 43.2; 43.3; 43.4 can in
  • Circumferential direction opposite its length in the closed form each be slightly extended (see angle ⁇ ), so that the thus twisted shell segments 43.1; 43.2; 43.3; 43.4 in the circumferential angle with respect to the axis of symmetry S continue at least directly or advantageously slightly overlap.
  • Wall construction 43 with z. B. in a manner mentioned above fan-shaped and / or rotated on the circumference arranged wall sections 43.1; 43.2; 43.3; 43.4 and / or in the event that by the shaping of the wall sections 43.1; 43.2; 43.3; 43.4 in
  • Circumferential direction o Mantellinien different inclination occur against the axis of symmetry S, for the characterization of the conicity in a first, the strength of the radial offset of the adjacent peripheral portion ends and / or the extent of o.
  • G. Twisting and / or twisting of the wall sections 43.1; 43.2; 43.3; 43.4 method, which is not considered as a conical effect in the first approximation of o.
  • G. which is effective for the twisting motion and / or the proximity to the flame.
  • maximum (virtual) inner Kegelstupf largest cross-sectional profile are used, as defined above in connection with the first variant.
  • This virtual truncated cone corresponds to the objective straight truncated cone which can be introduced as far as possible into the opening cone section and at the same time can correspond to a smallest effective angle of inclination ⁇ 1 of a pointed truncated cone, as defined in the following embodiment.
  • an embodiment of the burner cone 06 is of particular advantage, wherein the wall sections 43.1; 43.2; 43.3; 43.4 of the torch cone 06 in the area of the
  • Pre-mixing chamber 42 outwardly bounding wall 43 and wall construction 43 are formed at least in the - quasi funnel-shaped - opening cone longitudinal section in shape and structure such that the sharpest virtual
  • Truncated cone has a cone or opening angle of at least 10 °, preferably at least 14 °, d. H. one in this funnel-shaped opening
  • the blunt virtual truncated cone has in such an embodiment with in the circumferential direction of the shells varying inclination a maximum cone or opening angle of z. B. at most 50 °, preferably at most 40 °, on, d. h in this funnel-shaped opening cone longitudinal section in the longitudinal direction of the
  • Brennerkonus 06 extending inside the wall portion and most inclined to the axial direction of the generatrix in a perpendicular projection on a sectional plane comprising the axial direction with the axial direction a maximum inclination angle of z. B. at most 25 °, preferably at most 20 °, be formed.
  • An "average" conicity or a mean inclination angle * * which can be used in this way for a more precise geometric characterization, is formed, for example, by averaging, for example by means of integral averaging along the
  • Circumferential direction determined by the inclination of all surface lines, ie averaged over the circumference length weighted averaging, corresponds to the mean value of the passing over a plane passing through the axis of symmetry S over the considered circumferential portion, z. B. the 360 ° circumference or surrounded by the respective wall portion angle range, on the inside of the wall 43 and
  • This average inclination may advantageously be 10 ° to 20 °, in particular 12 ° to 17 °.
  • Sheath segments of a radiar symmetrical pyramid or truncated cone corresponds to z.
  • the integral mean is the arithmetic mean.
  • the inclinations at the two points of greatest deviation deviate by at most 5 °, advantageously by at most 3 ° from one another.
  • the downstream funnel-shaped cone longitudinal section of the burner cone 06 is thus a plurality, for. B. the number n, thus formed with the first and second ends of different inclination wall sections 43.1; 43.2; 43.3; 43.4 arranged staggered in the circumferential direction of the burner cone 06 in such a way that in Circumferentially viewed a less inclined second end of a over a first angular range, z. B. 360 n plus possibly a small separation ⁇ ( ⁇ from 1 ° to 5 °), in particular 90 ° or 90 ° + ⁇ , reaching first wall section 43.1; 43.2; 43.3; 43.4 by a to the first angle range with regard to the on
  • Burner longitudinal axis as the center-related angle gapless or with a small angular coverage ⁇ (overlap) subsequent, opposite the second end of the first wall section 43.1; 43.2; 43.3; 43.4 more inclined first end of a second wall section 43.2; 43.3; 43.4; 43.1; will continue.
  • the related to the axis of symmetry S through the respective adjacent wall sections 43.1; 43.2; 43.3; 43.4 angle sections covered in the circumferential direction continued at least completely or even slightly overlap in the above sense. This is a - with respect to the axis of symmetry S - purely radial flow through the between the adjacent wall sections 43.1; 43.2; 43.3; 43.4 formed tangential inlet openings 54 prevented.
  • FIG. 6 and Fig. 7 the situation for the stated embodiment with varying Slope for the second variant illustrated, wherein in Figure 7 by a schematic representation of two axially spaced-apart cross-sections I - 1; II-II (see eg Fig. 6) of the opening cone longitudinal section, an inner virtual truncated cone shell M1; M2 are indicated by the circle lines K1 and KV, and an outer virtual truncated cone shell by the circular lines K2 and K2 '.
  • the cone 06 is preferably designed with such an effective or moderate inclination, so that the resulting effective or average inner radius or diameter from the upstream end to the downstream end of the
  • sheath segments 43.1; 43.2; 43.3; 43.4 of a profile closed radially symmetrical cone shell - possibly with the extension in the circumferential direction to form the closed angle range and possibly an overlap - are the wall sections 43.1; 43.2; 43.3; 43.4 by equally large shell segments 43.1; 43.2; 43.3; 43.4 of a z. B. l-sided straight
  • Premixing chamber 42 on the shell side outwardly bounding inner wall 43 of the burner cone 06 is formed at least in the funnel-shaped cone longitudinal section in shape and structure for receiving a maximum virtual Kegelstupfes largest cross-sectional profile, the z. B. at least two axially spaced-apart cross-sectional planes of at least three circumferentially spaced locations on the wall 43 is present, and the truncated cone of this maximum virtual truncated cone in the in
  • the ends of the circumferentially adjoining, but in the end region radially spaced shell segments 43.1; 43.2; 43.3; 43.4 can be partially connected to each other via support elements 68 and thus increase the strength of the cone structure.
  • the burner cone 06 can downstream through a with the wall 43 and
  • Wall construction 43 in particular material or form-fitting - connected
  • End element 53, z. B. a surrounding the opening end plate 53 be completed.
  • This end plate 53 can only be embodied for stiffening and / or for forming a collar 62 or edge region 62 that surrounds the end-side outer contour of the wall 43 or wall construction 43 in a collar-like manner.
  • a trained edge 62 With such a trained edge 62, a swirling of the entering through the entrance slit 18 into the combustion chamber 1 1 incoming air or exhaust air, through an end-side cover 61 of the air or exhaust air inlet openings 54, the tangential flow may be favored.
  • Burner cone 06 is this in the circumferential direction by a number of individual, in
  • the all or group connected segments are z. B. in the region of the upstream end with, for example, the cone foot 46 and / or in the region of the downstream Brennerkonusendes
  • closing element 53 for example, with the closing element 53, z. B. a surrounding the opening end plate 53, - in particular material or form-fitting - connected.
  • End plate 53 may be designed for stiffening.
  • the funnel-like opening cone section has the wall 43 and wall structure 43 in the circumferential direction a plurality of obliquely in the longitudinal direction of the burner 04 against the axial direction of the burner 04 extending planar segments, for. B. flat sheet strip on, which forms viewed in cross section chordal extending peripheral portions.
  • the m segments 43.1x; 43.2x; 43.3x; 43.4x are with each other and in the region of the upstream end with, for example, the cone foot 46 and / or in the region of the downstream
  • sheath segments 43.1; 43.2; 43.3; 43.4 formed in a closed profile radially symmetrical cone sheath trained
  • Wall sections 43.1; 43.2; 43.3; 43.4 include the n shell segments 43.1; 43.2; 43.3; 43.4, for example, a truncated pyramid in turn segments 43.1x; 43.2x; 43.3x; 43.4x, where z. B. for the inclination of the partial surfaces to the inclination of
  • Design features particularly advantageous embodiment of the burner cone 06, the wall 43 and wall construction 43 in its inner wall enclosing area of possibly tangential air inlet openings 54 different axial air or exhaust air inlet openings 56; 57 include, which as z. B. round holes 56 or formed as a slit-like profile recesses 57 are formed and at least by fluid with a purely radially to the symmetry axis S directed flow direction can be flowed through. Both types of air or exhaust air inlet openings 56; 57 may be provided. Furthermore, exhaust air inlet openings 56; 57, preferably slit-like exhaust air inlet openings 57, with edge-side outwardly spread part covers, 58, z. B. flaps 58 may be provided. For example, these flaps 58 may be substantially the shape of the subject
  • Exhaust air inlets 56; 57 correspond and for adjusting the passing Lucas, Ab povertystromes changeable in the inclination to the surrounding closed lateral surface, z. B. at the on one side of the exhaust air inlet opening 56; 57 edge of the flap 58 existing connection bendable be.
  • Wall construction 43 are effective as Zu povertyinjektoren and wear in addition
  • These can basically be formed or fastened directly in the region of the front end on the wall of the wall 43 forming the cone shell or wall construction 43 itself.
  • the flow obstacles 59; 63; 64; 66 have the function to effectively mix the hot combustion gases from the flame with the supply air flowing outside the burner 04 through the entrance gap 18 into the combustion chamber 1 1.
  • the inclined or just to the plane of the outlet opening 16 extending, z. B. as a guide vanes 59; 63; 64; 66 trained flow obstacles 59; 63; 64; 66 disruptively disturb the air flow passing through the entrance slit 18 and / or the essentially rotationally symmetric conical flow in the burner cone 06 and with this the substantially
  • z. B. in combination with the fan-like embodiment particularly advantageous embodiment of the burner cone 06 are out of the profile outwardly outstanding flow obstacles 59; 63; 64; 66 formed as part of the burner cone 06 at the downstream end final end plate 53 at this or attached to this form or cohesively.
  • Flow obstacles 59; 63; 64 are z. B. as a guide vanes 59; 63; 64 off
  • Flat sheet material formed which is flat or at least a flat portion are executed, with the or at least one of its planar portions preferably inclined to the plane perpendicular to the axial plane of the
  • Outlet opening 16 are arranged.
  • the guide vanes 59; 63; 64 executed flow obstacles 59; 63; 64 at one of its sides at the edge of the end plate 53 so connected or connected so that they are more or less bend to adjust the turbulence.
  • Exhaust air inlet openings 54 may be arranged on the front side terminating portion of the cover plate 62.
  • second ones may be executed as planar guide vanes 59
  • Flow obstacles 63; 64 with an edge at an edge portion of the wall 43 and wall construction 43 in the region of the wall sections 43.1; 43.2; 43.3; 43.4 covering portion of the cover plate 62 may be arranged.
  • Guide vanes 59; 63; 64 in particular the first guide vanes 59, can in principle all point away from the plane of the outlet opening 16 downstream or downstream, or preferably to a part upstream and to the other part downstream.
  • Guide vanes 59; 63; 64, in particular the second guide vanes 63; 64 can be seen as a pair of guide vanes 63, 64 viewed in the circumferential direction on both sides of a radially outward circumference of the
  • Cover plate 62 outreaching section 66 may be arranged, wherein z. B. one away from the plane of the outlet opening 16 downstream and the other upstream.
  • the above device 01 for thermal aftertreatment comprises the burner 04 in one of the abovementioned embodiments with one or a combination of several of the features highlighted above as being advantageous.
  • the combustion chamber 1 1 in its interior a Verwirbelungseinnchtung 67 attributable to the chamber, for example, a baffle plate 67 on. Trained as baffle 67 Verwirbelungseinnchtung 67 extends z. B. parallel to the plane of the outlet opening 16 of the burner 04 and substantially centric to the axial direction of the burner 04th

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion Of Fluid Fuel (AREA)
  • Incineration Of Waste (AREA)

Abstract

L'invention concerne un dispositif de postcombustion d'air d'échappement, comprenant un brûleur (04) pourvu d'un injecteur de carburant (07) et d'un cône de brûleur (06) et saillant, au moins avec son cône de brûleur (06) situé dans une chambre de gaz brut (09), dans un flux d'air d'échappement (02) à traiter provenant d'un système (12) placé en amont, le cône de brûleur (06) comportant une paroi (43), constituée d'une ou plusieurs parties, qui entoure la chambre de pré-mélange (42) et qui comporte une ou plusieurs portions de paroi (43.1 ; 43.2 ; 43.3 ; 43.4) et l'injecteur de carburant (07) comportant un orifice d'au moins une sortie de carburant (44), qui sert à délivrer le carburant dans la chambre de pré-mélange (42), la paroi (43), qui délimite la chambre de pré-mélange (42) vers la l'extérieur du côté de l'enveloppe, ayant une structure telle que la chambre de pré-mélange (42), formée à l'intérieur, s'ouvre en entonnoir vers l'aval sur au moins une partie longitudinale du côté symétriquement à un axe de symétrie (S) définissant la direction axiale du brûleur (04), le cône de brûleur (06) sur au moins une partie de la longueur de la partie longitudinale de cône de la paroi (43) s'ouvrant en entonnoir comportant une pluralité d'orifices d'entrée tangentiels (54) qui permettent à l'air d'échappement, entourant le cône de brûleur (06), d'entrer tangentiellement dans la chambre de pré-mélange (42).
EP15712287.0A 2014-03-20 2015-03-16 Dispositif de postcombustion thermique d'air d'échappement Active EP3120074B1 (fr)

Applications Claiming Priority (2)

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DE102014205200.9A DE102014205200B3 (de) 2014-03-20 2014-03-20 Vorrichtung zur thermischen Nachverbrennung von Abluft
PCT/EP2015/055385 WO2015140085A1 (fr) 2014-03-20 2015-03-16 Dispositif de postcombustion thermique d'air d'échappement

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EP3120074B1 EP3120074B1 (fr) 2018-09-26

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EP (1) EP3120074B1 (fr)
CN (1) CN106415126B (fr)
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WO (1) WO2015140085A1 (fr)

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CN109872356A (zh) * 2017-12-01 2019-06-11 贵州中烟工业有限责任公司 一种定量评价卷烟燃烧锥形态的方法
US10900723B2 (en) * 2018-09-17 2021-01-26 Pony Ai Inc. Cover for creating circular airflows inside an enclosure
DE202019004693U1 (de) 2019-11-15 2019-12-13 Dominik Heinzelmann Antriebsmodul mit Überlastungssicherung
DE202020106660U1 (de) 2020-11-19 2020-12-04 Dominik Heinzelmann Hebehilfe
CN117267736B (zh) * 2023-11-21 2024-01-23 唐山市蓝欣玻璃有限公司 一种玻璃镀膜尾气在线分级处理装置

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CH680157A5 (fr) * 1989-12-01 1992-06-30 Asea Brown Boveri
EP0446436B1 (fr) * 1990-03-10 1993-02-24 H. Krantz GmbH & Co. Procédé et dispositif pour la combustion d'impuretés dans un courant de milieu
CH682952A5 (de) * 1991-03-12 1993-12-15 Asea Brown Boveri Brenner für eine Vormischverbrennung eines flüssigen und/oder gasförmigen Brennstoffes.
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Also Published As

Publication number Publication date
CN106415126A (zh) 2017-02-15
WO2015140085A1 (fr) 2015-09-24
US20170254531A1 (en) 2017-09-07
DE102014205200B3 (de) 2015-06-11
EP3120074B1 (fr) 2018-09-26
CN106415126B (zh) 2018-08-31

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