WO2019165378A1 - Système compact de combustion de surface à maille de prémélange à allumage vers l'intérieur, et système de chauffage de fluide et système de brûleur en boîtier le comprenant - Google Patents

Système compact de combustion de surface à maille de prémélange à allumage vers l'intérieur, et système de chauffage de fluide et système de brûleur en boîtier le comprenant Download PDF

Info

Publication number
WO2019165378A1
WO2019165378A1 PCT/US2019/019441 US2019019441W WO2019165378A1 WO 2019165378 A1 WO2019165378 A1 WO 2019165378A1 US 2019019441 W US2019019441 W US 2019019441W WO 2019165378 A1 WO2019165378 A1 WO 2019165378A1
Authority
WO
WIPO (PCT)
Prior art keywords
substrate
burner
combustion
fuel
cone
Prior art date
Application number
PCT/US2019/019441
Other languages
English (en)
Inventor
Carl Nicholas NETT
Alireza BAHRAMI
Keith Richard WALTZ
Original Assignee
Fulton Group N.A., Inc.
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 Fulton Group N.A., Inc. filed Critical Fulton Group N.A., Inc.
Priority to US16/439,873 priority Critical patent/US20190293285A1/en
Priority to PCT/IB2019/054959 priority patent/WO2019207559A2/fr
Publication of WO2019165378A1 publication Critical patent/WO2019165378A1/fr
Priority to US17/001,230 priority patent/US11236903B2/en
Priority to US17/547,078 priority patent/US20220099291A1/en
Priority to US17/587,586 priority patent/US20220154926A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/12—Radiant burners
    • F23D14/14—Radiant burners using screens or perforated plates
    • F23D14/145—Radiant burners using screens or perforated plates combustion being stabilised at a screen or a perforated plate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2203/00—Gaseous fuel burners
    • F23D2203/10—Flame diffusing means
    • F23D2203/101—Flame diffusing means characterised by surface shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2203/00—Gaseous fuel burners
    • F23D2203/10—Flame diffusing means
    • F23D2203/103—Flame diffusing means using screens
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2203/00—Gaseous fuel burners
    • F23D2203/10—Flame diffusing means
    • F23D2203/106—Assemblies of different layers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/00019—Outlet manufactured from knitted fibres

Definitions

  • This application relates to a compact premix mesh surface fuel combustion system for the purpose of heat generation, methods of using a premix mesh surface fuel combustion system, and methods of fluid heating incorporating a compact premix mesh surface fuel combustion system.
  • Premix fuel combustion systems are used to provide a heated thermal transfer fluid for a variety of commercial, industrial, and domestic applications such as hydronic, steam, and thermal fluid boilers, for example. Because of the desire for improved energy efficiency, compactness, reliability, and cost reduction, there remains a need for improved premix fuel combustion systems, as well as improved methods of manufacture thereof.
  • FIG. 1 A shows an illustration of the elements used to define semi-cone geometry, in accordance with embodiments of the present disclosure.
  • FIG. 1B shows a perspective diagram of a truncated cone in accordance with embodiments of the present disclosure.
  • FIG. 1C shows a perspective diagram of a semi-cone in accordance with embodiments of the present disclosure.
  • FIG. 1D shows a perspective diagram of a composite semi-cone in accordance with embodiments of the present disclosure.
  • FIG. 1E shows a perspective diagram of a composite semi-cone without cylindrical sections in accordance with embodiments of the present disclosure.
  • FIG. 2 shows a cutaway diagram of an embodiment of a premix combustion system with a single semi-conical combustion substrate in accordance with embodiments of the present disclosure.
  • FIG. 3 shows cutaway diagram showing an expanded view of an embodiment of the mesh and substrate structure of the combustion diffuser in accordance with
  • premix burner combustion systems comprising inward firing geometries, including the use of composite semi -cone burner combustion substrates and flow guides or baffles.
  • premix fuel-air burner combustion systems with composite semi-cone substrates that further comprises a metal fiber mesh layer on the inner surface of the substrate improves the performance and reliability of embodiments, particularly when operated in the“surface combustion” regime, as described herein.
  • a cone is a geometric surface that can be used to describe certain aspects of embodiments of the present disclosure, e.g., a combustion surface or substrate (as discussed hereinafter).
  • FIG. 1 A illustrates key concepts.
  • a cone 118 is a surface defined by a ray called the generator 116 emanating from a fixed point called the vertex 102 which intersects a fixed plane curve called the directrix 112.
  • the directrix as a geometric curve, need not be either continuous or convex but, when it is, it defines an
  • the axis 114 of the cone is the straight line passing between the vertex 102 and center 120 of the plane curve defined by the directrix 112. If the axis is perpendicular to the plane of the directrix, it is a right cone; otherwise, it is an oblique cone.
  • a semi-cone 100 is a section of a cone surface bounded between by intersecting a cone with at most two 2- dimensional surfaces.
  • the illustrated cone is intersected by a surface 104 proximal to the vertex 102, forming an upper or proximal semi-cone edge 106.
  • the surface 104 need not be planar or perpendicular to the axis 114 or any generator 116, and the proximal edge 106 need not be a plane curve.
  • the resulting semi-cone 100 is the surface of the cone 118 bounded above by the proximal edge 106 and by the distal edge 110 below.
  • the proximal surface 104 intersects the cone 118 only at the vertex 102, wherein the semi-cone 100 is the surface of the cone 118 between the vertex 102 and the distal edge 110.
  • FIG. 1C show a perspective diagram of a semi-cone 124 with a non-planar proximal edge 126.
  • a semi-cone wherein the cone 118 is intersected by proximal 104 and distal planar surfaces 108 is a truncated cone.
  • a semi-cone wherein the cone 118 is intersected by parallel proximal 104 and distal planar surfaces 108 is a frustum.
  • a semi cone wherein the cone 118 is a right circular cone, the proximal 104 and distal surfaces 108 are planar and perpendicular to the axis 114 is a right frustum.
  • FIG. 1B shows a perspective diagram of a right frustum 122.
  • a composite semi-cone is a composition of one or a plurality of semi-cones and zero, one or a plurality of cylinders disposed along their edges.
  • FIG. 1D shows a perspective diagram of a composite semi-cone 128.
  • FIG. 1E shows a perspective diagram of a composite semi -cone 129 without a cylindrical section.
  • the generator angle (alpha or a, as discussed further herein, e.g., regarding an angle of a combustion surface or substrate) is the angle 114 formed between a specific generator ray 116 and the axis 114 at the vertex 102.
  • the generator angles are equal and a unique generator angle can be determined.
  • a burner is a combustion system designed to provide thermal energy through a combustion process to apparatuses used for a variety of applications.
  • the burner may include, depending upon the fuel, combustion geometry and target application, a burner head that supports the combustion process, one or a plurality of nozzles or orifices, air blower with damper, burner control system, shut-off devices, fuel regulator, fuel filters, fuel pressure switches, air pressure switches, flame detector, ignition devices, air damper and fuel valves and fittings.
  • Typical burner systems range in capacity from 30kW to l,500kW
  • a package burner is a burner combustion system designed to be incorporated as a standalone modular subsystem unit into apparatuses used for a variety of applications.
  • the package burner may include, depending upon the fuel, combustion geometry and target application, an integrated subsystem comprising a burner head that supports the combustion process, one or a plurality of nozzles or orifices, air blower with damper, burner control system, shut-off devices, fuel regulator, fuel filters, fuel pressure switches, air pressure switches, flame detector, ignition devices, air damper and fuel valves and fittings.
  • Typical package burner systems range in capacity from 30kW to l,500kW (approximately 40 HP to 2,100 HP) are can be adapted to a wide range of uses including incinerators, boilers, drying systems, industrial ovens & furnaces.
  • thermodynamic combustion occurs where a fuel-air mixture is ignited in a spatial volume.
  • a physical structure may contain the combustion process, such as in a cavity burner, but the details of the structure do not directly participate in the thermodynamic combustion process.
  • SF combustion in“suspended flame combustion”
  • the combustion process (or a majority thereof) occurs near - but not directly on- the surface of a combustion substrate. which provides physical support for the generation of the flame front. In some conditions, a small portion of the flame may contact the burner surface (as described more hereinafter).
  • the flame front (or a majority thereof) is suspended near a positional equilibrium at a distance from the substrate determined partly by a balance of opposing forces due to fuel-air mass flow and flame migration toward its fuel source. If the fuel-air mass flow is reduced below a threshold, the flame front can approach the substrate and enter a regime of surface combustion. If the fuel-air mass flow is increased above a threshold, the flame front can enter a regime of volume combustion.
  • a boiler is a fluid heating system incorporating a heat exchanger that may be used to exchange heat between any suitable fluids, e.g., a first fluid and the second fluid, wherein the first and second fluids may each independently be a gas or a liquid.
  • the first fluid which is directed through the heat exchanger core, is a thermal transfer fluid, and may be a combustion gas, e.g., a gas produced by fuel fired combustor, and may comprise water, carbon monoxide, nitrogen, oxygen, carbon dioxide, combustion byproducts or combination thereof.
  • the thermal transfer fluid may be a product of combustion from a hydrocarbon fuel such as natural gas, propane, or diesel, for example.
  • the second fluid which is directed through the pressure vessel and contacts an entire outer surface of the heat exchanger core, is a production fluid and may comprise water, steam, oil, a thermal fluid (e.g., a thermal oil), or combination thereof.
  • the thermal fluid may comprise water, a C2 to C30 glycol such as ethylene glycol, a
  • halogenated hydrocarbons include l,l,l,2-tetrafluoroethane, pentafluoroethane, difluoroethane, l,3,3,3-tetrafluoropropene, and 2,3,3, 3-tetrafluoropropene, e.g.,
  • chlorofluorocarbons such as a halogenated fluorocarbon (HFC), a halogenated chlorofluorocarbon (HCFC), a perfluorocarbon (PFC), or a combination thereof.
  • the hydrocarbon may be a substituted or unsubstituted aliphatic hydrocarbon, a substituted or unsubstituted alicyclic hydrocarbon, or a combination thereof.
  • Commercially available examples include Therminol® VP-l, (Solutia Inc.), Diphyl® DT (Bayer A. G.), Dowtherm® A (Dow Chemical) and Therm® S300 (Nippon Steel).
  • the thermal fluid can be formulated from an alkaline organic compound, an inorganic compound, or a combination thereof. Also, the thermal fluid may be used in a diluted form, for example with a concentration ranging from 3 weight percent to 10 weight percent, wherein the concentration is determined based on a weight percent of the non-water contents of the thermal transfer fluid in a total content of the thermal transfer fluid.
  • combustion products comprises predominately gaseous products from combustion of natural gas or propane, and further comprises liquid water, steam, or a combination thereof and the production fluid comprises liquid water, steam, a thermal fluid, or a combination thereof is specifically mentioned.
  • FIG. 2 shows a cutaway diagram of an embodiment of an inward-firing premix burner comprising a semi cone combustion substrate and mesh insulator, although some advantages of inward-fining premix burner embodiments discovered by the inventors are not limited to the composite semi-cone geometry.
  • a semi-cone shaped combustion substrate 213 is disposed between the burner top head 206 and the inner surface of the furnace 230.
  • the burner combustion substrate 213 is a right circular frustum wherein the proximal edge 202 (or top edge) is a planar circle perpendicular to a longitudinal (or aial) axis 216 with proximal diameter D p and distal edge 236 (or bottom edge) a planar circle perpendicular to the longitudinal axis 216 with diameter D d , with height H.
  • the burner combustion substrate angle, a in a right frustum embodiment, is then determined to be:
  • the semi-cone sections of the burner combustion substrate angle may have any suitable generator angle between 1 degree, 2 degrees, 3 degrees, 4 degrees, 5 degrees, 10 degrees to 11 degrees, 12 degrees, 13 degrees, 14 degrees, 15 degrees, 16 degrees, 17 degrees, 18 degrees, 19 degrees, 20 degrees, 21 degrees, 22 degrees, 23 degrees, 24 degrees, 25 degrees, 26 degrees, 27 degrees, 28 degrees, 29 degrees, 30 degrees, 31 degrees, 32 degrees, 33 degrees, 34 degrees, 35 degrees, 36 degrees, 37 degrees, 38 degrees, 39 degrees, 40 degrees, 50 degrees, 60 degrees, 70 degrees, 80 degrees, and 85 degrees wherein the foregoing upper and lower bounds can be independently combined.
  • the burner combustion substrate angles between 18 degrees and 35 degrees is specifically mentioned.
  • the burner combustion substrate angle of 25 degrees is also specifically mentioned.
  • the burner combustion substrate is porous to the flow of premix fuel-air mixtures predominately in a vapor state.
  • Substrate pores 212 are distributed over the area of the burner combustion substrate 213.
  • the combustion process may be monitored by a sensor 204 which can detect if the flame is extinguished.
  • a premix(ed) fuel-air mixture 210 enters the inlet 238 of the burner and flows 222 within a burner pre-combustion cavity 217 and around and through the burner combustion substrate 213 inward toward the longitudinal axis 216.
  • the fuel-air mixture 210 ratio is arranged so that the premix fuel is ignited 220 within the burner combustion cavity 218.
  • the combustion products e.g., hot gases, particulate byproducts
  • the tubesheet 224 where they pass through the openings 228 of the heat exchanger tubes 226.
  • Heat generated by the combustion process is transferred across the walls of the heat exchanger tubes 226 to production fluid occupying the space between the outer surfaces of the furnace 230 and heat exchanger tubes 226 and the inner surface of the pressure vessel 214, sealed at one end by the boiler top head 208.
  • FIG. 3 shows a cutaway view of the diffuser 300 comprising (in its entirety) a right circular semi-cone combustion substrate 212A with circular proximal edge 202A and distal edge 236A.
  • a pattern of pores (alternatively, perforations) 213A in the combustion substrate admit the passage of the premix fuel-air to pass 308 from an exterior of the substrate, through a metal fiber mesh 232A disposed on the substrate 212A into a interior of the diffuser 310.
  • the mesh 232A is likewise in the shape of a semi-cone with proximal edge 306 and distal edge 304.
  • the metal fiber mesh can be of any type or construction. Woven metal fiber (warp and weave construction), knitted, sintering techniques are all specifically mentioned, as are equivalent methods.
  • Final mesh fabric thickness can be between 0.05” to 0.30”, with the threads forming the mesh being between 0.005 to 0.1.
  • the threads, if used can be made from fibers which are 0.0005 to 0.005”. If sintered metal mesh is used, fibers which are 0.0005 to 0.005” can be used to create the sintered mat.
  • Joining the mesh with itself, or affixing it to a metal substrate is typically done using electric resistance spot welding, with multiple spot welds done in series to create a continuous seam where required for strength and durability.
  • a first aspect is that the mesh insulation layer enables the premix fuel-air burner combustion system to be operated in the“surface combustion” regime where the mass flow rate through the diffuser is low.
  • the close proximity of the flame front to the substrate can result in excessively high temperatures of the substrate, which can lead to thermal stresses and material failure. Additionally, these high temperatures can ultimately exceed autoignition temperature for premixed fuel and air, resulting the flame igniting behind the substrate, causing combustion in the annular region between the burner casing and substrate.
  • a second aspect is that the metal fiber mesh distributes and homogenizes the premix fuel-air flow stream emanating through the substrate pores or perforations, and contributes to a more uniform distribution of fuel on the combustion diffuser surface.
  • the mesh serves to further direct the passage of the premix fuel-air flow stream so that it emerges close to orthogonal to the inner diffuser surface (also called flow
  • a third aspect is that the action of the metal fiber mesh to distribute and direct the premix fuel-air mixture to produce a uniform flow field for surface combustion reduces the risk of flashback. That is, it reduces the risk that the flame front locally migrates from the interior combustion surface, through the pores in the substrate, and into the annular region between the burner casing and the substrate.
  • a fourth aspect is that fine control of the delivery of the premix fuel-air to the interior of the burner cavity, or the burner combustion cavity, by the metal fiber mesh implies that the pores or perforations in the combustion substrate can be coarser and less uniform than if the substrate pores were solely responsible for the diffusion of the fuel mixture.
  • the incorporation of the metal fiber mesh disposed on the inner substrate surface relaxes the manufacturing requirements and tolerances for the combustion substrate, reducing cost and enabling a broader range of usable materials and fabrication methods.
  • a fifth aspect is that in some embodiments where the premix fuel-air mixture is generated by injecting fuel into an air stream before it reaches the burner inlet conduit 238, the mesh helps provides additional mixing through the turbulent action of the fuel stream passing through the mesh openings.
  • the metal fiber mesh contributes to the creation of a well-mixed lean fuel-air stream before it is ignited in the surface combustion process.
  • the various components of the premix fuel burner combustion system can each independently comprise any suitable material.
  • a metal is specifically mentioned.
  • Representative metals include iron, aluminum, magnesium, titanium, nickel, cobalt, zinc, silver, copper, and an alloy comprising at least one of the foregoing.
  • Representative metals include carbon steel, mild steel, cast iron, wrought iron, a stainless steel such as a 300 series stainless steel or a 400 series stainless steel, e.g., 304, 316, or 439 stainless steel, Monel, Inconel, bronze, and brass.
  • the premix fuel burner combustion system components each comprise steel, specifically stainless steel.
  • the premix burner combustion system may comprise a burner head, a combustion substrate, a baffle, a furnace wall that can each independently comprise any suitable material.
  • a steel such as mild steel or stainless steel this mentioned. While not wanting to be bound by theory, it is understood that use of stainless steel in the dynamic components can help to keep the components below their respective fatigue limits, potentially eliminating fatigue failure as a failure mechanism, and promote efficient heat exchange.
  • the disclosed system can alternately comprise, consist of, or consist essentially of, any appropriate components herein disclosed.
  • the disclosed system can additionally be substantially free of any components or materials used in the prior art that are not necessary to the achievement of the function and/or objectives of the present disclosure.
  • endpoints of all ranges directed to the same component or property are inclusive of the endpoints, are independently combinable, and include all intermediate points.
  • ranges of“up to 25 N/m, or more specifically 5 to 20 N/m” are inclusive of the endpoints and all intermediate values of the ranges of“5 to 25 N/m,” such as 10 to 23 N/m.
  • Embodiment A Further disclosed is a premix burner comprising: a burner casing with an inlet conduit for a premix fuel-air mixture to be disposed in the burner casing; a porous burner combustion substrate disposed in the burner casing; a metal fiber mesh disposed on the interior surface of the combustion substrate; wherein a premix fuel-air mixture enters the inlet conduit on an outside (exterior) of the burner combustion substrate.
  • a premix fuel-air mixture is disposed under pressure through the burner inlet to an outside of the porous burner combustion substrate; passes through pores in the burner combustion substrate and through the pores of the metal fiber mesh to an interior of the difuser; the fuel- air mixture is ignited in the interior of the burner combustion substrate; combustion gases and products flow from the interior of the burner cavity through an outlet in the burner casing.
  • Embodiment B Further disclosed is the premix burner of Embodiment A, wherein the porous burner combustion substrate and metal fiber mesh has the shape of a cylinder.
  • Embodiment C Further disclosed is the premix burner of Embodiment A, wherein the porous burner combustion substrate and metal fiber mesh has the shape of a composite semi-cone.
  • Embodiment D Further disclosed is the premix burner of Embodiment A, wherein the porous burner combustion substrate and metal fiber mesh has the shape of a semi-cone.
  • Embodiment E Further disclosed is the premix burner of Embodiment A, wherein the porous burner combustion substrate and metal fiber mesh has the shape of a truncated cone.
  • Embodiment F Further disclosed is the premix burner of Embodiment A, wherein the porous burner combustion substrate and metal fiber mesh has the shape of a circular truncated cone.
  • Embodiment G Further disclosed is the premix burner of Embodiment A, wherein the porous burner combustion substrate and metal fiber mesh has the shape of a right circular truncated cone.
  • Embodiment H Further disclosed is the premix burner of Embodiment A, wherein the porous burner combustion substrate and metal fiber mesh has the shape of a frustum.
  • Embodiment I Further disclosed is the premix burner of Embodiment A, wherein the porous burner combustion substrate and metal fiber mesh has the shape of a circular frustum.
  • Embodiment J Further disclosed is the premix burner of Embodiment A, wherein the porous burner combustion substrate and metal fiber mesh has the shape of a right circular frustum.
  • Embodiment K Further disclosed is the premix burner of any of Embodiments A to K, further comprising a plurality of burner casing inlets disposed on the burner casing.
  • hydronic fluid heating system (equivalently, a“hydronic boiler”) comprising a premix combustion system of any of Embodiments A to K or elsewhere disclosed in this specification.
  • a steam fluid heating system (equivalently, a“steam boiler”) comprising a premix combustion system of any of Embodiments A to K or elsewhere disclosed in this specification.
  • thermo fluid heating system (equivalently, a“thermal fluid boiler”) comprising a premix combustion system of any of Embodiments A to K or elsewhere disclosed in this specification.
  • a packaged burner comprising a premix combustion system of any of Embodiments A to K or elsewhere disclosed in this specification.
  • Conditional language such as, among others,“can,”“could,”“might,” or “may,” unless specifically stated otherwise, or otherwise understood within the context as used, is generally intended to convey that certain embodiments could include, but do not require, certain features, elements, or steps. Thus, such conditional language is not generally intended to imply that features, elements, or steps are in any way required for one or more embodiments or that one or more embodiments necessarily include logic for deciding, with or without user input or prompting, whether these features, elements, or steps are included or are to be performed in any particular embodiment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)

Abstract

L'invention concerne un brûleur à combustion de surface à allumage vers l'intérieur comprenant un boîtier de brûleur conçu pour recevoir un mélange carburant-air au niveau d'une entrée de brûleur et pour fournir un gaz de combustion chaud au niveau d'une sortie de brûleur, un substrat de combustion disposé à l'intérieur du boîtier de brûleur, le substrat ayant une forme comprenant au moins un semi-cône, ayant un angle de substrat mesuré à partir d'un axe longitudinal, présentant une porosité de substrat délimitée par une pluralité de pores, et ayant une surface interne de substrat et une surface externe de substrat, une maille disposée sur la surface interne du substrat de combustion, le substrat étant conçu pour recevoir le mélange combustible-air au niveau de la surface externe du substrat, le mélange combustible-air passant à travers les pores du substrat et à travers les pores de la maille à un débit de mélange de la surface extérieure du substrat vers la surface intérieure du substrat, le brûleur étant conçu de sorte que, lors de son fonctionnement, le mélange carburant-air s'allume directement au contact de la pluralité de pores de la maille ou en grande partie au contact de ceux-ci.
PCT/US2019/019441 2018-02-23 2019-02-25 Système compact de combustion de surface à maille de prémélange à allumage vers l'intérieur, et système de chauffage de fluide et système de brûleur en boîtier le comprenant WO2019165378A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US16/439,873 US20190293285A1 (en) 2018-02-23 2019-06-13 Compact dual-fuel combustion system, and fluid heating system and packaged burner system including the same
PCT/IB2019/054959 WO2019207559A2 (fr) 2018-04-13 2019-06-13 Système compact de combustion à deux combustibles, et système de chauffage de fluide et système de brûleur conditionné incluant celui-ci
US17/001,230 US11236903B2 (en) 2018-02-23 2020-08-24 Compact inward-firing premix fuel combustion system, and fluid heating system and packaged burner system including the same
US17/547,078 US20220099291A1 (en) 2018-02-23 2021-12-09 Compact flat plate premix fuel combustion system, and fluid heating system and packaged burner system including the same
US17/587,586 US20220154926A1 (en) 2018-02-23 2022-01-28 Compact inward-firing premix fuel combustion system, and fluid heating system and packaged burner system including the same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201862634520P 2018-02-23 2018-02-23
US62/634,520 2018-02-23

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US16/285,119 Continuation-In-Part US10989406B2 (en) 2018-02-23 2019-02-25 Compact inward-firing premix fuel combustion system, and fluid heating system and packaged burner system including the same
US17/001,230 Continuation-In-Part US11236903B2 (en) 2018-02-23 2020-08-24 Compact inward-firing premix fuel combustion system, and fluid heating system and packaged burner system including the same

Publications (1)

Publication Number Publication Date
WO2019165378A1 true WO2019165378A1 (fr) 2019-08-29

Family

ID=67688494

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2019/019441 WO2019165378A1 (fr) 2018-02-23 2019-02-25 Système compact de combustion de surface à maille de prémélange à allumage vers l'intérieur, et système de chauffage de fluide et système de brûleur en boîtier le comprenant

Country Status (1)

Country Link
WO (1) WO2019165378A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6612295B2 (en) * 1998-10-22 2003-09-02 Greentech Motors Ltd. Fuel-air mixer for engine
KR100568027B1 (ko) * 2003-06-26 2006-04-05 김연형 연소효율을 개선한 기화식 버너
US20060251998A1 (en) * 2003-04-18 2006-11-09 Dinand Lamberts Metal burner membrane
US20100007773A1 (en) * 2008-07-14 2010-01-14 O'connell Ian Video Processing and Telepresence System and Method
KR20170075494A (ko) * 2015-12-23 2017-07-03 두산엔진주식회사 버너장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6612295B2 (en) * 1998-10-22 2003-09-02 Greentech Motors Ltd. Fuel-air mixer for engine
US20060251998A1 (en) * 2003-04-18 2006-11-09 Dinand Lamberts Metal burner membrane
KR100568027B1 (ko) * 2003-06-26 2006-04-05 김연형 연소효율을 개선한 기화식 버너
US20100007773A1 (en) * 2008-07-14 2010-01-14 O'connell Ian Video Processing and Telepresence System and Method
KR20170075494A (ko) * 2015-12-23 2017-07-03 두산엔진주식회사 버너장치

Similar Documents

Publication Publication Date Title
US10989406B2 (en) Compact inward-firing premix fuel combustion system, and fluid heating system and packaged burner system including the same
Wood et al. Porous burners for lean-burn applications
Yu et al. Combustion characteristics and thermal efficiency for premixed porous-media types of burners
US6213757B1 (en) Advanced emissive matrix combustion
US20060035190A1 (en) Pore-type burner with silicon-carbide porous body
CN104566367B (zh) 低浓度煤层气或瓦斯燃烧器及其配套系统
US20220154926A1 (en) Compact inward-firing premix fuel combustion system, and fluid heating system and packaged burner system including the same
US20190293285A1 (en) Compact dual-fuel combustion system, and fluid heating system and packaged burner system including the same
JP4694955B2 (ja) ２層式燃焼器
JP5857502B2 (ja) 燃焼加熱器
EP2764294B1 (fr) Brûleur sans flamme
WO2019165378A1 (fr) Système compact de combustion de surface à maille de prémélange à allumage vers l'intérieur, et système de chauffage de fluide et système de brûleur en boîtier le comprenant
US20220099291A1 (en) Compact flat plate premix fuel combustion system, and fluid heating system and packaged burner system including the same
WO2009110509A1 (fr) Appareil de chauffage
RU2596900C1 (ru) Каталитическое нагревательное устройство с распределителем газового потока
EP3961097A1 (fr) Système compact de combustion de combustible à prémélange à allumage vers l'intérieur, et système de chauffage de fluide et système de brûleur conditionné incluant celui-ci
WO2023028129A1 (fr) Système de combustion de combustible à pré-mélange à plaque plate compacte, et système de chauffage de fluide et système de brûleur intégré le comprenant
CN216897838U (zh) 一种全预混燃烧波浪式火管燃气热水器
JP5232474B2 (ja) 燃焼容積を減少させるためのマトリクス手段
CN219933991U (zh) 一种高效率VOCs处理设备
US7493876B2 (en) Passive mixing device for staged combustion of gaseous boiler fuels
JP3110091U (ja) ブラウンガスを利用した産業用ボイラー
JP5211765B2 (ja) 加熱装置
TR2023015029A2 (tr) LNG ısıtma kazanı
ITMO20120281A1 (it) Bruciatore atmosferico parzialmente premiscelato a combustibile gassoso.

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19757932

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19757932

Country of ref document: EP

Kind code of ref document: A1