WO2023186748A1 - Bruleur de fibrage de laine de verre - Google Patents
Bruleur de fibrage de laine de verre Download PDFInfo
- Publication number
- WO2023186748A1 WO2023186748A1 PCT/EP2023/057730 EP2023057730W WO2023186748A1 WO 2023186748 A1 WO2023186748 A1 WO 2023186748A1 EP 2023057730 W EP2023057730 W EP 2023057730W WO 2023186748 A1 WO2023186748 A1 WO 2023186748A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fuel
- burner
- injector
- flow
- oxidizer
- 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.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/04—Manufacture of glass fibres or filaments by using centrifugal force, e.g. spinning through radial orifices; Construction of the spinner cups therefor
- C03B37/048—Means for attenuating the spun fibres, e.g. blowers for spinner cups
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/04—Manufacture of glass fibres or filaments by using centrifugal force, e.g. spinning through radial orifices; Construction of the spinner cups therefor
Definitions
- the invention relates to a burner intended to be used as part of a process for forming glass fibers, during which the stretching of the fibers results from gas currents emitted at high temperature and at high speed by said burners alone. , or in combination with other means such as centrifugation means or die-type stretching means.
- the fibering process commonly used for fiberglass is the so-called internal centrifugation process. It consists of introducing a stream of stretchable material in the molten state into a centrifuge, also called fiberizing plate, rotating at high speed.
- a centrifuge also called fiberizing plate
- Such a fiberizing plate can alternatively be equipped or not with a bottom and is pierced at its periphery by a very large number of orifices through which the material is projected in the form of filaments under the effect of centrifugal force.
- Such a process for fiberizing glass wool should be distinguished from that commonly used for rock fiber, known as the external centrifugation fiberization process.
- the material to be fiberized is poured in the molten state onto the peripheral band of rotating centrifugation wheels, is accelerated by these wheels, detaches from them and is partially transformed into fibers under the effect of centrifugal force, a gaseous current being emitted tangentially to the peripheral band of the wheels so as to take charge of the fibered material by separating it from the infibrated material and to convey it to a receiving organ.
- the external centrifugation fiberization process we can refer to patent application EP195725.
- patent EP0189354B1 describes a burner suitable for drawing glass fibers, which comprises an annular-shaped combustion chamber, delimited by walls of refractory material, which opens onto a circular expansion slot whose direction is substantially parallel to the axis of the burner.
- burners of the type described in EP0189354B1 also illustrated by the , comprise an injector opening into the lower peripheral part of the combustion chamber, in order to inject therein an oxidant and combustible gas mixture.
- the mixture between the fuel and the oxidant is therefore carried out before their introduction into the combustion chamber.
- Such a technological choice finds its origin in the physical mechanisms involved in stabilizing the flame of a burner. As illustrated in Figures 2, 3 and 4, the stability of the flame depends mainly on the two opposite speeds which are the speed of ejection of the flow of fuel/oxidant mixture (uf) on the one hand, and the speed movement of the flame (Sf) on the other hand.
- the flame is stabilized. In such a state, the flame can alternately remain “hung” on the injector, or be maintained at a constant distance from the latter.
- the speed of the flame (Sf) is greater than the speed of the fuel/oxidant mixture (uf), as illustrated by the , the flame moves (Sd) towards the source of the injector, with the risks of explosion, or at least degradation of the injector, inherent in such a situation. We then speak of “backfire”.
- the speed of the flame (Sf) is lower than the speed of the fuel/oxidant mixture (uf), as illustrated by the , the flame moves away (Sd) from the injector and then risks going out or in other words, being “blown out”.
- the combustion chamber being provided with at least one flame stabilizing element located near the internal wall of the combustion chamber and the expansion orifice, this flame stabilizing element constituting a recirculation zone in which can be maintained at least part of the combustion between oxidizer(s) and fuel(s), in order to stabilize the burner flame.
- the invention makes it possible to meet this need, and relates to a burner suitable for drawing glass fibers, comprising: - a combustion chamber of annular shape, preferably delimited by walls made of refractory material, which opens onto a circular expansion slot whose direction is substantially parallel to the axis of the burner, and - an injection system comprising at least one injector, preferably of tubular shape, arranged to supply the combustion chamber with fuel and oxidant in the gaseous state, said burner being characterized in that said injector comprises at least one angular deflection element adapted to generate a flow of oxidizer and/or fuel whose flow is swirling.
- tubular means an injector composed of one or a succession of coaxial hollow cylinders having as central cavity an injection chamber opening onto the combustion chamber.
- Angular deflection designates the modification by the injector of the trajectory of the oxidant and/or fuel flow in order to make its flow swirly.
- the fuel can be in liquid or gaseous form.
- the oxidizer is chosen from a non-limited list, including air.
- vortex describes a flow animated by a spiral movement whose tangential component, also called azimuthal, is non-negligible, so that a reduction in pressure occurs on the axis of the injector and induces the creation of an internal recirculation zone.
- this internal recirculation zone allows the flame to hang near the exit of the injector. Indeed, such a zone is characterized by high levels of negative axial speeds.
- the attachment of the flame is further favored by the presence of toroidal recirculation zones which return part of the burned gases to the base of the combustion chamber, thus causing significant preheating of the fresh gases.
- a burner according to the invention therefore makes it possible to significantly improve the efficiency of combustion, in particular in lean conditions, in which the ratio of the quantity of fuel (gas) to the quantity of oxidant (air) is low. At the same heating power, fuel consumption and the resulting CO2 emissions are therefore reduced.
- expanding the operating range of the burner makes it possible to obtain better flexibility in the fiber drawing operating conditions. It is thus possible to vary the diameter and/or length of the glass fibers.
- a burner according to the invention has improved durability over time compared to a " Bluff-body”, and is moreover compatible with the injection of a pre-mixture of fuel and fuel, unlike a “Bluff-body” type burner.
- the intensity of the rotary movement of the flow is characterized by the value of the swirl number S at the injector outlet.
- This swirl number S generally expresses the ratio between the tangential and axial momentum fluxes and is defined by the following formula:
- Increasing the value of the swirl number S reduces the height of the flame, but tends to increase the opening of the flame.
- the adoption of a wide flame opening makes it possible to limit the number of injectors arranged around the perimeter of the combustion chamber, while guaranteeing uniform heating of the latter.
- said angular deflection element is a ring coaxial with the injector, preferably removable, comprising at least one lateral conduit adapted to allow the introduction of the swirling flow of oxidizer and/or fuel into the chamber.
- injection of the injector with said angular deflection angle ⁇ is preferably between 10° and 80°, more preferably between 20° and 70°, more preferably between 30° and 60°, more preferably between 40° and 50°.
- the angle formed by the lateral conduit with respect to the normal of the circular section of the ring corresponds to the angle ⁇ of angular deflection of the flow of oxidizer and/or fuel entering into the calculation of the number of swirl S.
- this angle ⁇ tends towards the values of 0° and 90°, the swirl effect disappears, the flow speed tends to be exclusively axial, thus impacting the swirl number S, and therefore the structure of the flame.
- the value of this angle ⁇ tends towards 45°, the swirl effect increases to allow optimal mixing of the fuel and the oxidizer. For an equal quantity of oxidizer, it is thus possible to reduce the quantity of fuel injected.
- the removable nature of the angular deflection ring makes it possible to replace the latter more easily and at lower cost, for maintenance reasons of adaptation of said injector to a new operational operating range.
- said angular deflection element can be a set of deflectors arranged within the injection chamber in order to rotate the flow of oxidizer and/or fuel.
- the injection system is adapted to separately supply said injector with fuel on the one hand, and with oxidant on the other hand.
- Such a separate injection makes it possible to protect against the risk of flame flashback, in the absence of an oxidizer/fuel mixture upstream of the injector, and offers the possibility of preheating the oxidizer (air) before injection, which makes it possible to improve combustion efficiency, and lower the flammability (ignition) limit of the mixture. It is therefore possible to further reduce fuel consumption, which also has the effect of reducing gas emissions from combustion (carbon dioxide). Note that such preheating is prohibited in the context of pre-mixing fuel and oxidizer, due to the risk of explosion.
- said injector comprises a central conduit adapted for the injection of a flow of fuel along the axis of the injector, the flow of oxidizer being intended to flow through said deflection element.
- Central fuel injection allows optimal mixing of oxidizer (air) and fuel (gas) flows.
- a central conduit extends at least partly into the injection chamber of the injector.
- the external surface of the upstream portion of said central conduit is of frustoconical shape, the diameter of said external surface being on this portion decreasing, according to the direction of injection.
- Such a frustoconical shape makes it possible to avoid separation of the boundary layer of the vortex flow, in order to reduce the risks of the appearance of unwanted turbulence.
- the outlet of the injector is positioned within the injection chamber, at a distance between 0 and 45 mm from the entry point of the injected flow of oxidant and fuel into the combustion chamber. .
- the flow losses are too high, due to the intensity of the swirling oxidant flow.
- this distance tends towards 0 or in other words, when the outlet of the injector approaches the combustion chamber, the central conduit undergoes too much wear due to too close proximity to the combustion chamber. interior of the combustion chamber of the burner, and the heat released therefrom.
- the distance between the outlet of the injector and the entry point of the injected flow of oxidizer and fuel into the combustion chamber is greater than 5 mm, still preferably greater than 10 mm, still preferably greater than 15 mm, still preferably greater than 20 mm.
- said injector has a straight section at the outlet relative to the axis of the injector.
- the entry point of the injected flow of oxidizer and fuel into the combustion chamber is positioned near the center of the wall of the combustion chamber most distal to the axis of the burner.
- the most distal wall of the burner axis corresponds to the peripheral wall of the combustion chamber.
- an inlet thus positioned in the combustion chamber of said injected flow of oxidizer and/or fuel is substantially equidistant from the upper and lower walls of the combustion chamber, which allows obtaining a more homogeneous and more stable flame, particularly in view of the gas flows circulating in said combustion chamber.
- said entry point of said injected flow of oxidizer and fuel into the combustion chamber has a section diameter adapted as a function of the desired flame stabilization distance.
- the diameter of the outlet section impacts the flow ejection speed.
- This section the greater the ejection speed, which increases the flame stabilization distance.
- the flame is then said to be “lifted”. Beyond a certain ejection speed value, the flame is “blown out”. On the contrary, the larger the section, the lower the ejection speed. Below a certain ejection speed value, there is a risk that the flame will stabilize inside the refractory material wall, which should be avoided.
- said injection system comprises a ring for distributing the flow of oxidizer and/or fuel to said at least one injector, said ring being preferably supplied via a plurality of inlets uniformly distributed around the periphery of said ring , the number of inputs still being preferably equal to the number of injectors.
- the invention also relates to a process for manufacturing glass fibers characterized in that it uses at least one burner such as that described above.
- the manufacturing process uses at least one burner whose injection system is adapted to separately supply said injector with fuel on the one hand, and with oxidizer on the other hand, said manufacturing process comprising a separate step of supplying the injector with fuel on the one hand, and with oxidizer on the other hand, as well as a preliminary step of preheating said fuel, preferably by means of gases resulting at least in part from combustion .
- Preheating the fuel makes it possible on the one hand to improve combustion efficiency, and on the other hand to lower the flammability (ignition) limit of the fuel/oxidant mixture.
- the use to do this of gases resulting at least in part from combustion, and therefore already heated, makes it possible to reduce the total energy consumption of the fusion and fiberization process.
- the relative consumption of fuel being reduced, such preheating also makes it possible to reduce polluting emissions.
- the invention also relates to a glass fiber obtained by implementing such a manufacturing process.
- the invention also relates to a method of controlling a burner such as that described above, said method comprising a step of controlling the flow rate of the oxidizer and/or fuel flow as a function of a measured/estimated value of temperature and/or pressure, preferably collected inside the combustion chamber.
- a burner according to the invention makes it possible to vary the temperature and/or pressure parameters over wider ranges than known burners.
- the invention also relates to a computer program downloadable from a communications network and/or recorded on a recording medium adapted to be read by a computer and/or executed by a processor, comprising an instruction code for implement such a control process.
- This program may use any programming language, and be in the form of source code, object code, or intermediate code between source code and object code, such as in partially compiled form.
- the invention also covers a computer recording medium, on which such a computer program is recorded.
- the recording medium can be any entity or device capable of storing the program.
- the medium may include a storage means, such as a read-only memory, a rewritable non-volatile memory, for example a USB key, an SD card, an EEPROM, or even a magnetic recording means, for example a Hard disk.
- the recording medium may also be an integrated circuit in which the program is incorporated, the circuit being adapted to execute or to be used in executing the method.
- the recording medium may be a transmissible medium such as an electrical or optical signal, which may be carried via electrical or optical cable, by radio or by other means.
- the program according to the invention can in particular be downloaded onto a computer network.
- the invention also relates to a fiberizing installation equipped with one or more burners such as that described above.
- Figures 2, 3 and 4 are schematic representations of the speed of ejection of the flow of fuel/oxidant mixture (uf) in a conduit on the one hand, and the speed of movement of the flame (Sf) on the other hand ,
- a burner 1 according to the invention comprises: - a combustion chamber 2 of annular shape, preferably delimited by walls made of refractory material, which opens onto a circular expansion slot 3 whose direction is substantially parallel to the axis of the burner 1, and - an injection system 4 comprising at least one injector 5, preferably of tubular shape, arranged to supply the combustion chamber 2 with fuel and oxidant in the gaseous state,
- such a burner 1 comprises an injector 5 provided with at least one angular deflection element 51 adapted to generate a flow of oxidizer and/or fuel whose flow is swirling.
- said angular deflection element 51 is a ring coaxial with the injector 5, comprising at least one lateral conduit 511 adapted to allow the introduction of the swirling flow of oxidizer into the injection chamber 52 of the injector 5 with an angular deflection angle ⁇ , formed by the lateral conduit relative to the normal of the circular section of the ring.
- this angle of angular deflection ⁇ is 45°.
- the corresponding swirl number S is 0.67, which makes it possible to optimize the mixing between fuel and oxidizer, and thus to reduce the quantity of fuel to be injected, for the same quantity of oxidizer.
- this angle can however take other values.
- said angular deflection element can be a set of deflectors arranged within the injection chamber in order to rotate the flow of oxidizer and/or fuel.
- said injector 5 comprises a central conduit 53 which extends partly into the injection chamber 52 of the injector and is adapted for the injection of a flow of fuel along the axis X of the injector 5, the oxidant flow being intended to flow through said deflection element 51.
- the injection system 4 of the burner 1 comprises on the one hand a supply of combustible gas injected via the central conduit 53, for example in the form of methane. It also comprises a separate supply 42 of oxidizer, for example in the form of air, which is introduced into the injector via the lateral conduits 511 of the injection ring 51, in a swirling flow, this is that is to say animated by a spiral movement whose tangential component, also called azimuthal, is non-negligible. The entire mixture is produced in the injection chamber 52, before being ejected into the combustion chamber 2 of the burner 1. As an illustration, the oxidant/fuel flows are represented in fine interrupted lines on the .
- the preheating of the air is carried out at least in part by heat recovery from the gases resulting from the combustion taking place within the burner, the glass melting furnace (for example via exchangers) , and/or any other heat source generated during the glass wool manufacturing process.
- the invention is not limited to a particular choice of fuel and/or oxidant.
- the fuel can be in liquid or gaseous form, and the oxidizer is chosen from an unlimited list, including oxygen and air.
- said injection system 4 comprises a crown 41 for distributing the flow of oxidizer and/or fuel to said at least one injector 5.
- This crown 41 is represented in more detail by the , and is advantageously supplied via a plurality of inlets 411 uniformly distributed around the periphery of said ring 41, in order to allow homogeneous distribution of the fuel flow in the injectors.
- the injector does not include a central conduit, or the latter is closed.
- the fuel/oxidizer mixture is then produced upstream of the injector, to be introduced there exclusively via the injection ring.
- the latter is ejected into the combustion chamber 2 of the burner 1, via a straight section outlet.
- a reduction in pressure occurs on the axis of the injector and induces the creation of an internal recirculation zone.
- this internal recirculation zone allows the flame to hang near the exit of the injector. Indeed, such a zone is characterized by high levels of negative axial speeds.
- the attachment of the flame is further favored by the presence of toroidal recirculation zones which return part of the burned gases to the base of the combustion chamber, thus causing significant preheating of the fresh gases.
- the flame being more stable, it is thus possible to reduce the quantity of fuel (gas) injected into the combustion chamber without risking the flame blowing out, as described in the rest of the text in the commentary to the .
- the entry point 21 of the injected flow of oxidant and fuel into the combustion chamber 2 is positioned near the center of the wall of the combustion chamber 2 most distal to the axis of the burner, that is to say i.e. the peripheral wall of the combustion chamber 2. This makes it possible to obtain a more homogeneous and more stable flame, particularly in view of the gas flows circulating in the combustion chamber.
- the entry point 21 also has a section diameter of (15mm, for a fuel and oxidant flow rate of approximately 1200 nm3/h.), in order to help stabilize the flame at the entrance to the bedroom 2.
- sensors collect pressure and temperature measurements inside the chamber 2, in order to facilitate the control of the burner 1, in particular by variation of the injection rate of the oxidant flow and/or combustible.
- the fumes resulting from the combustion of the fuel/oxidant mixture are ejected via the expansion slot 3 of the annular burner in a direction substantially parallel to the axis of the burner 1, this in order to stretch and/or thin the glass fibers ejected from the fiberizing plate.
- part of these fumes is used to preheat the oxidizer (air) before its introduction into the injector of burner 1.
- the tests are carried out in a combustion laboratory, on a test bench reproducing the conditions of combustion by flame within an annular burner, at atmospheric pressure and ambient temperature.
- the objective of the tests is to determine the stability limit of the injector. To do this, we fix the gas flow (combustible) and gradually increase the air flow (oxidant) until we obtain an unstable flame. The ratio of the fuel flow to the oxidant flow is then measured.
- a first series of tests is carried out with an injector according to the invention, with a straight outlet section, as illustrated in Figures 5 to 7, and a second series of tests is carried out with an injector according to the invention, but whose outlet section is beveled, at an angle of 15° relative to the axis X of the injector.
- the injectors are tested with three formats of injection rings, whose angular deflection angles are respectively 20°, 30° and 45°.
- the fuel/oxidant ratio presents for an angle of 20° a fuel/oxidizer ratio close to 1.80, and increases as the angle of deflection varies between 20° and 45°, reaching a value of 3.50 at 45°.
- This beveled profile has the negative effect of opposing the swirling effect induced by the injector, which negatively impacts the performance of the beveled injector when this swirling effect gains power.
- an injector equipped with a straight profile section has better performance than a beveled injector. Note in particular that the performance of the beveled injector deteriorates significantly at 45°.
- the first experimental protocol therefore makes it possible to designate the injector with a straight outlet section with a deflection angle of 45°, as the one presenting the best performance in terms of flame stabilization.
- the value of the fuel gain is estimated as a function of the preheating temperature of the oxidizer (air).
- the burner is considered as a black box on which a power balance is carried out by application of the first law of thermodynamics (conservation of energy).
- thermodynamics conservation of energy
- the total energy stored by the control volume is the sum of the powers received thermally, mechanically and the energy provided by the molecules.
- Enthalpies are only a function of temperature. By knowing the exit enthalpy of the burned gases, we can therefore deduce the temperature of these gases.
- the layer of gas adjacent to that which is burning must be brought to a certain temperature such that it can catch fire quickly. If the gas is heated to a high temperature, the amount of heat to be provided by the burning layer is less.
- the lower flammability limit decreases.
- the following empirical formula, used by the INRS establishes a safety value of the lower flammability limit L at temperature t, as a function of the limit L0 at temperature T0 reference :
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Gas Burners (AREA)
- Pre-Mixing And Non-Premixing Gas Burner (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
Abstract
Description
- une chambre de combustion de forme annulaire, préférentiellement délimitée par des parois en matériau réfractaire, qui débouche sur une fente de détente circulaire dont la direction est sensiblement parallèle à l’axe du brûleur, et
- un système d’injection comprenant au moins un injecteur, préférentiellement de forme tubulaire, agencé pour alimenter la chambre de combustion en combustible et en comburant à l’état gazeux,
ledit brûleur étant caractérisé en ce que ledit injecteur comprend au moins un élément de déflexion angulaire adapté pour générer un flux de comburant et/ou combustible dont l’écoulement est tourbillonnaire.
ledit nombre de tourbillon S étant compris entre 0,10 et 2,00, préférentiellement entre 0,25 et 1,70, encore préférentiellement entre 0,35 et 1,40,, encore préférentiellement entre 0,45 et 1,10, encore préférentiellement entre 0,55 et 0,90, encore préférentiellement entre 0,65 et 0,70.
- une chambre de combustion 2 de forme annulaire, préférentiellement délimitée par des parois en matériau réfractaire, qui débouche sur une fente de détente 3 circulaire dont la direction est sensiblement parallèle à l’axe du brûleur 1, et
- un système d’injection 4 comprenant au moins un injecteur 5, préférentiellement de forme tubulaire, agencé pour alimenter la chambre de combustion 2 en combustible et en comburant à l’état gazeux,
Avec Qv : débit volumique
- L’énergie ne s’accumule pas dans la chambre de combustion
- Il n’y a aucune pièce mécanique en mouvement qui fournit un travail,
- Les énergies cinétique et potentielle seront négligées devant l’énergie interne des gaz.
Claims (17)
- une chambre de combustion (2) de forme annulaire, préférentiellement délimitée par des parois en matériau réfractaire, qui débouche sur une fente de détente (3) circulaire dont la direction est sensiblement parallèle à l’axe du brûleur (1), et
- un système d’injection (4) comprenant au moins un injecteur (5), préférentiellement de forme tubulaire, agencé pour alimenter la chambre de combustion (2) en combustible et en comburant à l’état gazeux,
ledit brûleur (1) étant caractérisé en ce que ledit injecteur (5) comprend au moins un élément de déflexion angulaire (51) adapté pour générer un flux de comburant et/ou combustible dont l’écoulement est tourbillonnaire.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP23713391.3A EP4274813A1 (fr) | 2022-03-30 | 2023-03-24 | Bruleur de fibrage de laine de verre |
| KR1020247031854A KR20240169623A (ko) | 2022-03-30 | 2023-03-24 | 그라스울 섬유 인발 버너 |
| AU2023244437A AU2023244437A1 (en) | 2022-03-30 | 2023-03-24 | Glass wool fibre-drawing burner |
| CN202380031471.6A CN118973971A (zh) | 2022-03-30 | 2023-03-24 | 玻璃棉纤维拉伸燃烧器 |
| CA3243443A CA3243443A1 (fr) | 2022-03-30 | 2023-03-24 | Glass wool fibre-drawing burner |
| JP2024557170A JP2025513734A (ja) | 2022-03-30 | 2023-03-24 | グラスウール繊維延伸バーナー |
| CONC2024/0012782A CO2024012782A2 (es) | 2022-03-30 | 2024-09-20 | Quemador de estiramiento de fibra de lana de vidrio |
| MX2024011995A MX2024011995A (es) | 2022-03-30 | 2024-09-27 | Quemador de estiramiento de fibra de lana de vidrio |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2022050601 | 2022-03-30 | ||
| FRPCT/FR2022/050601 | 2022-03-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023186748A1 true WO2023186748A1 (fr) | 2023-10-05 |
Family
ID=81448869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2023/057730 Ceased WO2023186748A1 (fr) | 2022-03-30 | 2023-03-24 | Bruleur de fibrage de laine de verre |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP4274813A1 (fr) |
| JP (1) | JP2025513734A (fr) |
| KR (1) | KR20240169623A (fr) |
| CN (1) | CN118973971A (fr) |
| AU (1) | AU2023244437A1 (fr) |
| CA (1) | CA3243443A1 (fr) |
| CL (1) | CL2024002535A1 (fr) |
| CO (1) | CO2024012782A2 (fr) |
| MX (1) | MX2024011995A (fr) |
| WO (1) | WO2023186748A1 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3156777A1 (fr) | 2023-12-18 | 2025-06-20 | Saint-Gobain Isover | Bruleur pour fibrage par centrifugation interne |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3162049A1 (fr) | 2024-05-07 | 2025-11-14 | Saint-Gobain Isover | Brûleur annulaire pour la fabrication de fibres minérales |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2524610A1 (fr) * | 1982-04-06 | 1983-10-07 | Saint Gobain Isover | Perfectionnements aux bruleurs a combustion interne |
| EP0195725A1 (fr) | 1985-03-21 | 1986-09-24 | Isover Saint-Gobain | Perfectionnement aux dispositifs de formation de fibres minérales au moyen de roues de centrifugation |
| EP0189354B1 (fr) | 1985-01-25 | 1992-04-01 | Isover Saint-Gobain | Perfectionnements à la fabrication de fibres minerales |
| WO1997015532A1 (fr) | 1995-10-27 | 1997-05-01 | Isover Saint-Gobain | Procede et appareil de production de laine minerale |
| WO1999065835A1 (fr) | 1998-06-12 | 1999-12-23 | Saint-Gobain Isover | Dispositif et procede de centrifugation de fibres minerales |
| US20100139324A1 (en) * | 2007-04-12 | 2010-06-10 | Saint- Gobain Isover | Internal combustion burner |
| EP1474636B1 (fr) | 2002-02-13 | 2010-12-15 | Saint-Gobain Isover | Bruleur a combustion interne, notamment pour l'etirage de fibres minerales |
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2023
- 2023-03-24 KR KR1020247031854A patent/KR20240169623A/ko active Pending
- 2023-03-24 EP EP23713391.3A patent/EP4274813A1/fr active Pending
- 2023-03-24 WO PCT/EP2023/057730 patent/WO2023186748A1/fr not_active Ceased
- 2023-03-24 AU AU2023244437A patent/AU2023244437A1/en active Pending
- 2023-03-24 JP JP2024557170A patent/JP2025513734A/ja active Pending
- 2023-03-24 CA CA3243443A patent/CA3243443A1/fr active Pending
- 2023-03-24 CN CN202380031471.6A patent/CN118973971A/zh active Pending
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2024
- 2024-08-23 CL CL2024002535A patent/CL2024002535A1/es unknown
- 2024-09-20 CO CONC2024/0012782A patent/CO2024012782A2/es unknown
- 2024-09-27 MX MX2024011995A patent/MX2024011995A/es unknown
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2524610A1 (fr) * | 1982-04-06 | 1983-10-07 | Saint Gobain Isover | Perfectionnements aux bruleurs a combustion interne |
| EP0189354B1 (fr) | 1985-01-25 | 1992-04-01 | Isover Saint-Gobain | Perfectionnements à la fabrication de fibres minerales |
| EP0195725A1 (fr) | 1985-03-21 | 1986-09-24 | Isover Saint-Gobain | Perfectionnement aux dispositifs de formation de fibres minérales au moyen de roues de centrifugation |
| WO1997015532A1 (fr) | 1995-10-27 | 1997-05-01 | Isover Saint-Gobain | Procede et appareil de production de laine minerale |
| WO1999065835A1 (fr) | 1998-06-12 | 1999-12-23 | Saint-Gobain Isover | Dispositif et procede de centrifugation de fibres minerales |
| EP1474636B1 (fr) | 2002-02-13 | 2010-12-15 | Saint-Gobain Isover | Bruleur a combustion interne, notamment pour l'etirage de fibres minerales |
| US20100139324A1 (en) * | 2007-04-12 | 2010-06-10 | Saint- Gobain Isover | Internal combustion burner |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3156777A1 (fr) | 2023-12-18 | 2025-06-20 | Saint-Gobain Isover | Bruleur pour fibrage par centrifugation interne |
| WO2025132140A1 (fr) | 2023-12-18 | 2025-06-26 | Saint-Gobain Isover | Bruleur pour fibrage par centrifugation interne |
Also Published As
| Publication number | Publication date |
|---|---|
| CN118973971A (zh) | 2024-11-15 |
| EP4274813A1 (fr) | 2023-11-15 |
| AU2023244437A1 (en) | 2024-08-15 |
| JP2025513734A (ja) | 2025-04-30 |
| MX2024011995A (es) | 2024-11-08 |
| CO2024012782A2 (es) | 2024-10-10 |
| KR20240169623A (ko) | 2024-12-03 |
| CL2024002535A1 (es) | 2024-12-06 |
| CA3243443A1 (fr) | 2023-10-05 |
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