EP1182689A1 - Kühlbares Infrarotstrahlerelement - Google Patents
Kühlbares Infrarotstrahlerelement Download PDFInfo
- Publication number
- EP1182689A1 EP1182689A1 EP01116888A EP01116888A EP1182689A1 EP 1182689 A1 EP1182689 A1 EP 1182689A1 EP 01116888 A EP01116888 A EP 01116888A EP 01116888 A EP01116888 A EP 01116888A EP 1182689 A1 EP1182689 A1 EP 1182689A1
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- EP
- European Patent Office
- Prior art keywords
- cooling
- heating
- heating tube
- tube
- element according
- 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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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
- H05B3/42—Heating elements having the shape of rods or tubes non-flexible
- H05B3/44—Heating elements having the shape of rods or tubes non-flexible heating conductor arranged within rods or tubes of insulating material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/02—Incandescent bodies
- H01K1/04—Incandescent bodies characterised by the material thereof
- H01K1/06—Carbon bodies
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/02—Incandescent bodies
- H01K1/14—Incandescent bodies characterised by the shape
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/28—Envelopes; Vessels
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/28—Envelopes; Vessels
- H01K1/32—Envelopes; Vessels provided with coatings on the walls; Vessels or coatings thereon characterised by the material thereof
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/50—Selection of substances for gas fillings; Specified pressure thereof
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/58—Cooling arrangements
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/0033—Heating devices using lamps
- H05B3/009—Heating devices using lamps heating devices not specially adapted for a particular application
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
- H05B3/04—Waterproof or air-tight seals for heaters
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/032—Heaters specially adapted for heating by radiation heating
Definitions
- the invention relates to a coolable infrared radiator element made of silica glass with at least one Heating tube, which has a gas-tight feedthrough at both ends, wherein an elongated electrical heating conductor is arranged in the heating tube as a radiation source, with at least one cooling element, the at least one cooling channel for a liquid coolant has, and at least in the area of the heating conductor with a metallic reflector, the at least has a reflective surface.
- an infrared radiator element which has a water-cooled twin tube made of silica glass with a heating tube and a cooling tube, a reflection layer made of gold being attached to a surface of the cooling tube.
- the reflection layer is applied either on the outer surface of the cooling tube or on that surface of the common wall surface of the heating tube and cooling tube which is turned away from the heating conductor.
- a permitted energy concentration for this radiator is described as 400 kW / m 2 .
- the DD 257 200 A1 describes an infrared high-power radiation source, which is an elongated one Has a glow lamp in a cladding tube.
- the cladding tube is arranged in a jacket tube and offset from the jacket pipe in the plane of the radiation direction by 3 to 15%.
- a liquid cooling and filter medium flows through the jacket tube.
- the cladding tube has a plurality of strip-shaped cylinder segments on its surface facing the liquid medium as reflective surfaces.
- the jacket pipe has on the liquid Surface facing away from the medium has an approximately half-shell-shaped reflection layer.
- the distance between two cylinder segments is equal to the width of a cylinder segment and a cylinder segment parallel to Reflection surface is arranged on the jacket tube.
- EP 0 163 348 describes an infrared lamp with a coiled tungsten heating conductor in a quartz vessel.
- the quartz vessel is equipped with a halogen gas to form a halogen circuit filled.
- An infrared reflective coating made of gold or rhodium covers the surface of the quartz vessel preferably half-shell-shaped over its entire length. Gas-tight, electrical feedthroughs through the quartz vessel are included in the Crimped thin molybdenum foils with electrical connections realized at the ends of the vessel.
- DE 28 03 122 C2 finally discloses a halogen incandescent lamp with a bromine circuit, the incandescent lamp being made of a quartz glass bulb, a filling gas and an incandescent filament Has tungsten.
- the bromine is in the operating state of the light bulb after decomposing one in solid form in the glass bulb introduced metal bromide for the well-known tungsten-halogen cycle to disposal. Copper bromide is used as the metal bromide.
- the task is to provide an infrared radiator with which high energy concentrations> 500 kW / m 2 can be achieved and with which the radiation losses are low.
- At least one reflecting surface viewed in cross section, describes a line around a surface, the passage of at least part of the liquid coolant being provided in the region of the surface.
- the cross section here means a section perpendicular to the longitudinal axis of the heating tube, in which a reflecting surface can only be seen as a line.
- One of these lines should now enclose a surface in cross section.
- the line can preferably be a circular line.
- other line shapes such as the lines around a square, a rectangular, a triangular, an elliptical, a crescent-shaped surface or around an irregularly or irregularly shaped surface can be used without any problems.
- At least one of the reflective surfaces recognizable in cross section itself forms a channel for the liquid coolant or at least a part thereof.
- a heating tube must be designed for a specific output of up to 190 W / cm, whereby very high heating conductor temperatures in the range of around 3000K are necessary. At these high heating conductor temperatures, on the one hand, the stability of the silica glass heating tube is endangered and, on the other hand, the likelihood of overheating or boiling of the cooling water and thus of the radiator element breaking is high.
- the stability of the silica glass heating tube is now achieved in the sense of the invention by a high heat absorption capacity of the liquid coolant used for cooling, here in particular water.
- the configuration of the reflector according to the invention prevents the coolant from being overheated. This would be the case, for example, with an arrangement of a reflection layer on the outer surface of a cooling tube, as is already known from the prior art.
- the reflector can be formed from a metal layer, the cooling element being attached to the at least one heating tube immediately adjacent cooling tube with at least one cooling channel and at least one cooling channel is lined with the metal layer.
- a metal layer an interior gold plating of the cooling tube is preferred here.
- the reflector can also be formed from a thin-walled metal part, the Cooling element with at least one cooling tube immediately adjacent to the at least one heating tube is a cooling channel and wherein a cooling channel is lined with the metal part.
- the Metal part can be formed here by a film or sheet, a film being more flexible and can be more precisely adapted to the internal dimensions of the cooling tube.
- the reflector is formed from a thin-walled metal part, that the Cooling element is a cooling tube surrounding the at least one heating tube and that the thin-walled one Metal part is arranged in the cooling tube.
- a self-supporting reflector can preferably be used here with a hollow structure in the cooling tube, but also a combination of reflector layers on cooling and / or heating pipe and a metal part can be used.
- a radiator is a special embodiment in which the cooling element is a metallic one Reflector is formed. This means a combination of cooling properties and reflectivity. Because of the impermeability of the reflector to radiation, this should however, only a maximum of 50% of the circumference of the outer wall of the at least one heating tube enclose.
- the reflector can have at least two cooling channels for transport of the coolant.
- the heating conductor is made of tungsten and the heating tube with one inert gas is filled, which has a halogen doping. Since it is at the high heating conductor temperature If tungsten is strongly evaporated, halogen doping is used of preferably ammonium bromide or copper bromide to form the halogen cycle necessary. To a in the field of electrical feedthroughs Avoiding condensation of ammonium bromide or copper bromide is between the Heating conductor and the gas-tight bushings each have an electrical connection line arranged, the diameter of the connecting line being dimensioned such that the Connection line at nominal current due to its electrical resistance to a temperature heated from 600 to 800 ° C.
- a heating conductor made of a carbon band can also be used are, whereby here the heating pipe can be filled with noble gas or evacuated. there the carbon band can be tensioned or coiled with a spring.
- An infrared radiator element which has a first and a second heating tube is particularly preferred has, wherein part of the wall surface of the first heating tube simultaneously wall surface of the second heating tube.
- the heating tube and the cooling element can be curved.
- the two gas-tight current feedthroughs of the heating tube can be rectified and arranged parallel to one another, so that, for example, electrical connections lying on one side of an oven space can be used for the infrared radiator element.
- the heating tube is also preferably made with an inner diameter of 10 -17 mm.
- the ratio of the coil diameter of a coiled heating conductor to the inside diameter of the heating tube should be at least 1: 3.
- Figure 1 shows an infrared radiator element 1 with a heating tube 2 and a cooling tube 3 made of silica glass.
- the heating tube 2 there is an elongated electrical heating conductor 4, which means Spacers 4a, which are usually made of tungsten, is positioned.
- the heating conductor 4 is made of tungsten in the form of a spiral, the heating tube 2 with a inert gas is filled, which has a halogen doping.
- Argon is the inert gas here selected while ammonium bromide is selected for the halogen doping.
- each connecting line 6a; 6b is dimensioned such that each connecting line 6a; 6b at Nominal current due to its electrical resistance to a temperature of 600 to Heated to 800 ° C.
- the gas-tight bushings 5a; 5b are through a bruise and / or fusing of the silica glass is formed at the two ends of the heating tube 2.
- a method which is well known to the person skilled in the art is used, in which a thin Molybdenum foil 7a; 7b is melted down.
- the cooling tube 3 has a cooling channel through a metallic reflector 8 is occupied.
- the reflector 8 can be made either by thin gold plating the cooling tube 3 may be formed (see Fig. 1a) or by a non-oxidizing Metal sheet with a reflective surface, for example a gold sheet or a non-oxidizing metal foil with a reflective surface, for example a gold foil, with which / which the cooling channel is lined (see Figures 1b and 1c) are formed.
- Connections 9a are on the cooling tube 3; 9b for connecting the cooling pipe 3 to a coolant line attached, water being provided as a liquid coolant.
- Figure 1a shows a cross section A - A 'through the infrared radiator element according to Figure 1 with the heating tube 2 and the cooling tube 3, which has a cooling channel 3a for the liquid coolant having.
- the heating conductor 4 is shown in helical form, which is made by means of spacers 4a is positioned.
- the cooling tube 3 has a reflector 8a in the form of an internal gold plating in Layer shape.
- Figure 1b shows a cross section A - A 'through the infrared radiator element according to Figure 1 with the heating tube 2 and the cooling tube 3, which has a cooling channel 3a for the liquid coolant having.
- the heating conductor 4 is shown in helical form, which is made by means of spacers 4a is positioned.
- the cooling tube 3 has a reflector 8b in the form of a non-oxidizing metal foil with a reflective surface, for example a gold foil, which is in direct contact is arranged to the cooling tube 3.
- Figure 1c shows a cross section A - A 'through the infrared radiator element according to Figure 1 with the heating tube 2 and the cooling tube 3, which has a cooling channel 3a for the liquid coolant having.
- the heating conductor 4 is shown in helical form, which is made by means of spacers 4a is positioned.
- the cooling tube 3 has a reflector 8c in the form of a non-oxidizing metal sheet with a reflective surface, such as a sheet of gold on the cooling channel 3a of the cooling tube 3 is inserted.
- Figure 2 shows a similar infrared radiator element 1 as Figure 1 with a heating tube 2 and one Cooling tube 3 made of silica glass.
- An elongated electrical heating conductor is located in the heating tube 2 4, which is tensioned by means of a spring 10.
- the heating conductor 4 is designed here as a carbon band, the heating tube 2 is evacuated.
- the gas-tight bushings 5a; 5b are like formed in Figure 1.
- the cooling tube 3 has a cooling channel through a metallic reflector 8 is occupied.
- the reflector 8 can either be through a thin inner gold plating of the cooling tube 3 be formed (see Fig.
- a non-oxidizing metal sheet reflective surface for example a gold sheet or a non-oxidizing metal foil with a reflective surface, for example a gold foil, with which the cooling channel is lined (see Fig. 1b and 1c), are formed.
- Connections are on the cooling tube 3 9a; 9b attached to the connection of the cooling tube 3 with a coolant line, water is provided as a liquid coolant.
- Figure 3a shows an infrared radiator element 1 in cross section with two heating tubes 2a; 2b made of silica glass, in each of which a heating conductor 4a; 4b made of carbon tape.
- a metallic reflector 8 is positively attached to one side, not only the function of a reflector but also that of a cooling element takes over.
- the reflector 8 has two cooling channels 3a; 3b for receiving the liquid coolant on.
- Figure 3b shows an infrared radiator element 1 in cross section with two heating tubes 2a; 2b made of silica glass, in each of which a heating conductor 4a; 4b is arranged in the form of a tungsten coil.
- a metallic reflector 8 is positively attached to one side, not only the function of a reflector but also that of a cooling element takes over.
- the reflector 8 has two cooling channels 3a; 3b for taking up the liquid Coolant.
- FIG. 4a shows an infrared radiator element 1 in cross section with a heating tube 2 made of silica glass, in which a heating conductor 4 is arranged in the form of a tungsten coil. Is on the heating tube 2 on one side a metallic reflector 8 positively attached, which here not only Function of a reflector but at the same time that of a cooling element.
- the reflector 8 has two cooling channels 3a; 3b for receiving the liquid coolant.
- FIG. 4b shows an infrared radiator element 1 in cross section with a heating tube 2 made of silica glass, in which a heating conductor 4 is arranged in the form of a carbon strip.
- a metallic reflector 8 is positively attached to one side, which here is not only the Function of a reflector but at the same time that of a cooling element.
- the reflector 8 has two cooling channels 3a; 3b for receiving the liquid coolant.
- FIG. 5a shows an infrared radiator element 1 in cross section BB ′ including two heating tubes Tungsten filaments in a cooling tube 3 made of silica glass.
- the cooling tube 3 has a cooling channel 3a in which the heating pipes are arranged and so washed by a liquid coolant can be.
- a metallic reflector 8 On one side of the heating pipes is a metallic reflector 8 in the cooling channel 3a arranged, which has a crescent-shaped hollow cross section and thereby from one Coolant can flow through.
- Figure 5b shows the infrared radiator element 1 of Fig. 5a in a side view, in which the Reflector is not recognizable.
- the heating pipes 2a; 2b and the tungsten filaments 4a; 4b clearly visible.
- an electrical connecting line 6a; 6b; 6c; 6d arranged, the diameter of the connecting lines 6a; 6b; 6c; 6d each is dimensioned such that each connecting line 6a; 6b; 6c; 6d at nominal current due their electrical resistance heated to a temperature of 600 to 800 ° C.
- the gas-tight bushings 5a; 5b are by crushing and / or merging of the silica glass at the two ends of the heating pipes 2a; 2b formed.
- the cooling tube 3 surrounds both heating pipes 2a; 2b spaced and can via the connections 9a; 9b for the coolant a coolant line can be connected.
- Figure 6a shows an infrared radiator element 1 with two heating tubes 2a; 2b in a cooling tube 3 Pebble glass, the two connections 9a; 9b for the liquid coolant.
- the heating pipes 2a; 2b is a heating conductor 4a; 4b arranged in the form of a carbon ribbon, each via a spring 10a; 10b is excited.
- the heating tubes 2a; 2b gas tight Bushings 5a; 5b.
- FIG. 6b shows the infrared radiator element from FIG. 6a in cross section C - C '
- the reflector 8 can be seen with a crescent-shaped hollow shape in the cooling channel 3a.
- the Reflector 8 can also be formed in a different shape, for example in a form-fitting manner the heating pipes 2a; 2b and the cooling tube 3 adapted.
- FIG. 6c shows a longitudinal section through the infrared radiator element 1 from FIG. 6a. It is that Cooling tube 3 and one of the heating tubes 2a arranged therein can be seen. Located in the heating tube 2a the heating conductor 4a in the form of the carbon band, which is tensioned with the spring 10a. In addition, the gas-tight bushings 5a; 5b recognizable. The reflector is in not shown in this figure.
- Figure 7 shows an infrared radiator element 1 with a curved heating tube 2 and a curved Cooling tube 3.
- the two gas-tight bushings 5a; 5b of the heating pipe 2 rectified and arranged parallel to each other.
- the current feedthroughs 5a; 5b be fused together.
- a heating conductor 4 in the form of a tungsten filament is arranged in the heating tube 2, while the cooling channel 3a of the cooling tube 3 is surrounded by a reflector 8 in the form of an inner gold plating.
- connections 9a; 9b provided to connect the cooling pipe 3 to a coolant line.
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Abstract
Description
Unter dem Querschnitt wird hier ein Schnitt senkrecht zur Längsachse des Heizrohres verstanden, bei welchem eine reflektierende Oberfläche nur als Linie zu erkennen ist. Eine dieser Linien soll nun im Querschnitt eine Fläche umschließen. Dabei kann die Linie vorzugsweise eine Kreislinie sein. Aber auch andere Linienform wie die der Linien um eine quadratische, eine rechteckige, eine dreieckige, eine elliptische, eine halbmondförmige oder um eine irgendwie regel- oder unmäßig geformte Fläche sind problemlos verwendbar. Es bildet demnach mindestens eine der im Querschnitt erkennbaren reflektierenden Oberflächen selbst einen Kanal für das flüssige Kühlmittel oder zumindest einen Teil davon.
Mit dieser geometrischen Ausgestaltung ist es möglich, einen Hochleistungs-Infrarotstrahler mit geringem Strahlungsverlust und Energiekonzentrationen von ≥ 1 MW/m2 zu realisieren. Ein Heizrohr muss dabei für eine spezifische Leistung von bis zu 190 W/cm ausgelegt sein, wobei sehr hohe Heizleitertemperaturen im Bereich von circa 3000K notwendig sind. Bei diesen hohen Heizleitertemperaturen ist jedoch einerseits die Stabilität des Kieselglas-Heizrohres gefährdet und andererseits die Wahrscheinlichkeit für eine Überhitzung beziehungsweise ein Kochen des Kühlwassers und damit für einen Bruch des Strahlerelementes hoch. Die Stabilität des Kieselglas-Heizrohres wird nun im Sinne der Erfindung durch eine hohe Wärmeaufnahmefähigkeit des zur Kühlung verwendeten flüssigen Kühlmittels, hier insbesondere Wasser, erreicht. Die erfindungsgemäße Ausgestaltung des Reflektors verhindert andererseits, dass das Kühlmittel zu stark erhitzt wird. Das wäre beispielsweise der Fall bei einer Anordnung einer Reflexionsschicht auf der äußeren Oberfläche eines Kühlrohres, wie es aus dem Stand der Technik bereits bekannt ist.
Zur Gewährleistung der Stabilität des Heizrohres aus Kieselglas wird das Heizrohr zudem bevorzugt mit einem Innendurchmesser von 10 -17mm ausgeführt.
In diesem Zusammenhang sollte das Verhältnis von Wendeldurchmesser eines gewendelten Heizleiters zu Innendurchmesser des Heizrohres mindestens 1:3 betragen.
- Fig. 1
- ein Infrarotstrahlerelement mit einem Heizrohr, einem Kühlrohr und einer Wolframwendel als Heizleiter
- Fig. 1a
- einen Querschnitt durch das Infrarotstrahlerelement aus Fig. 1 mit Innenvergoldung des Kühlrohres
- Fig. 1b
- einen Querschnitt durch das Infrarotstrahlerelement aus Fig. 1 mit einer Auskleidung des Kühlrohres mit reflektierender Metallfolie
- Fig. 1c
- einen Querschnitt durch das Infrarotstrahlerelement aus Fig. 1 mit einer Auskleidung des Kühlrohres mit reflektierendem Metallblech
- Fig. 2
- ein Infrarotstrahlerelement mit einem Heizrohr, einem Kühlrohr und einem als Kohlenstoffband ausgebildeten Heizleiter
- Fig. 2a
- eine Seitenansicht des Infrarotstrahlerelementes aus Fig. 2
- Fig. 3a
- ein Infrarotstrahlerelement mit zwei Heizrohren, zwei Kühlkanälen und Kohlenstoffbändern als Heizleiter im Querschnitt
- Fig. 3b
- ein Infrarotstrahlerelement mit zwei Heizrohren, zwei Kühlkanälen und Wolframwendeln als Heizleiter im Querschnitt
- Fig. 4a
- ein Infrarotstrahlerelement mit einem Heizrohr, zwei Kühlkanälen und einer Wolframwendel als Heizleiter im Querschnitt
- Fig. 4b
- ein Infrarotstrahlerelement mit einem Heizrohr, zwei Kühlkanälen und einem Kohlenstoffband als Heizleiter im Querschnitt
- Fig. 5a
- ein Infrarotstrahlerelement mit zwei Heizrohren in einem Kühlrohr und Wolframwendeln als Heizleiter im Querschnitt
- Fig. 5b
- eine Seitenansicht des Infrarotstrahlerelementes aus Fig. 5a
- Fig. 6a
- eine Seitenansicht eines Infrarotstrahlerelementes mit zwei Heizrohren in einem Kühlrohr
- Fig. 6b
- das Infrarotstrahlerelement aus Fig. 6a im Querschnitt
- Fig. 6c
- das Infrarotstrahlerelement aus Fig. 6a in einer weiteren Seitenansicht
- Fig. 7
- ein Infrarotstrahlerelement mit gebogenem Heiz- und Kühlrohr.
Claims (16)
- Kühlbares Infrarotstrahlerelement aus Kieselglas mitmindestens einem Heizrohr, das an seinen beiden Enden jeweils eine gasdichte Stromdurchführung aufweist, wobei im Heizrohr ein langgestreckter elektrischer Heizleiter als Strahlungsquelle angeordnet ist,mindestens einem Kühlelement, das mindestens einen Kühlkanal für ein flüssiges Kühlmittel aufweist, und zumindest im Bereich des Heizleiterseinem metallischen Reflektor, der mindestens eine reflektierende Oberfläche aufweist, dadurch gekennzeichnet, dass
- Infrarotstrahlerelement nach Anspruch 1, dadurch gekennzeichnet, dass der Reflektor aus einer Metallschicht gebildet ist, dass das Kühlelement ein an das mindestens eine Heizrohr unmittelbar angrenzendes Kühlrohr mit mindestens einem Kühlkanal ist und dass mindestens ein Kühlkanal mit der Metallschicht ausgekleidet ist.
- Infrarotstrahlerelement nach Anspruch 1, dadurch gekennzeichnet, dass der Reflektor aus einem dünnwandigen Metallteil gebildet ist, dass das Kühlelement ein an das mindestens eine Heizrohr unmittelbar angrenzendes Kühlrohr mit mindestens einem Kühlkanal ist und dass ein Kühlkanal mit dem Metallteil ausgekleidet ist.
- Infrarotstrahlerelement nach Anspruch 1, dadurch gekennzeichnet, dass der Reflektor aus einem dünnwandigen Metallteil gebildet ist, dass das Kühlelement ein das mindestens eine Heizrohr umgebendes Kühlrohr ist und dass das dünnwandige Metallteil im Kühlrohr angeordnet ist.
- Infrarotstrahlerelement nach Anspruch 1, dadurch gekennzeichnet, dass das Kühlelement als metallischer Reflektor ausgebildet ist und dass der Reflektor maximal 50% des Umfangs der äußeren Wandung des mindestens einen Heizrohres umschließt.
- Infrarotstrahlerelement nach Anspruch 5, dadurch gekennzeichnet, dass der Reflektor mindestens zwei Kühlkanäle für den Transport des Kühlmittels aufweist.
- Infrarotstrahlerelement nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der Heizleiter aus Wolfram gebildet ist und dass das Heizrohr mit einem inerten Gas befüllt ist, welches eine Halogen-Dotierung aufweist.
- Infrarotstrahlerelement nach Anspruch 7, dadurch gekennzeichnet, dass die Halogen-Dotierung aus Ammoniumbromid oder Kupferbromid gebildet ist.
- Infrarotstrahlerelement nach einem der Ansprüche 7 bis 8, dadurch gekennzeichnet, dass zwischen dem Heizleiter und den gasdichten Stromdurchführungen jeweils eine elektrische Verbindungsleitung angeordnet ist, wobei der Durchmesser der Verbindungsleitung so dimensioniert ist, dass sich die Verbindungsleitung bei Nominalstrom aufgrund ihres elektrischen Widerstandes auf eine Temperatur von 600 bis 800°C erwärmt.
- Infrarotstrahlerelement nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der Heizleiter aus einem Kohlenstoffband gebildet ist und dass das Heizrohr mit Edelgas befüllt ist.
- Infrarotstrahlerelement nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der Heizleiter aus einem Kohlenstoffband gebildet ist und dass das Heizrohr evakuiert ist.
- Infrarotstrahlerelement nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass ein erstes und ein zweites Heizrohr vorhanden sind, wobei ein Teil der Wandfläche des ersten Heizrohres gleichzeitig Wandfläche des zweiten Heizrohres ist.
- Infrarotstrahlerelement nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass das Heizrohr und das Kühlelement gebogen ausgebildet sind.
- Infrarotstrahlerelement nach Anspruch 13, dadurch gekennzeichnet, dass die beiden gasdichten Stromdurchführungen des Heizrohres gleichgerichtet und zueinander parallel angeordnet sind.
- Infrarotstrahlerelement nach einem der Ansprüche 1 bis 14, dadurch gekennzeichnet, dass das Heizrohr einen Innendurchmesser von 10 - 17mm aufweist.
- Infrarotstrahlerelement nach Anspruch 15, dadurch gekennzeichnet, dass der Heizleiter gewendelt ist und dass das Verhältnis von Wendeldurchmesser zu Innendurchmesser des Heizrohres mindestens 1:3 beträgt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10041564A DE10041564C2 (de) | 2000-08-24 | 2000-08-24 | Kühlbares Infrarotstrahlerelement |
DE10041564 | 2000-08-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1182689A1 true EP1182689A1 (de) | 2002-02-27 |
EP1182689B1 EP1182689B1 (de) | 2010-04-21 |
Family
ID=7653630
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01116888A Expired - Lifetime EP1182689B1 (de) | 2000-08-24 | 2001-07-11 | Kühlbares Infrarotstrahlerelement |
Country Status (5)
Country | Link |
---|---|
US (1) | US6713945B2 (de) |
EP (1) | EP1182689B1 (de) |
JP (1) | JP3530509B2 (de) |
AT (1) | ATE465508T1 (de) |
DE (2) | DE10041564C2 (de) |
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JP6293509B2 (ja) * | 2014-02-07 | 2018-03-14 | 日本碍子株式会社 | 赤外線ヒーター及び赤外線ヒーターユニット |
DE102015119763A1 (de) * | 2015-11-16 | 2017-05-18 | Heraeus Quarzglas Gmbh & Co. Kg | Infrarotstrahler |
CN109874182B (zh) * | 2017-12-01 | 2021-05-07 | 中国飞机强度研究所 | 一种新型石英灯加热装置 |
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FR2362488A1 (fr) * | 1976-08-19 | 1978-03-17 | Heraeus Schott Quarzschmelze | Element de radiateur infrarouge a refroidissement |
DD257200A1 (de) * | 1987-01-19 | 1988-06-08 | Ardenne Forschungsinst | Infrarot-hochleistungsstrahlungsquelle |
US5382805A (en) * | 1993-11-01 | 1995-01-17 | Fannon; Mark G. | Double wall infrared emitter |
EP0999724A2 (de) * | 1998-11-04 | 2000-05-10 | Industrieservis Gesellschaft für Innovation Technologie-Transfer und Consulting für Thermische Prozessanlagen mbH | Lampen- und Reflektoranordnung |
WO2000049641A2 (en) * | 1999-02-19 | 2000-08-24 | Fannon Mark G | Emitter and method for heating an object with infrared energy |
DE20020150U1 (de) * | 2000-10-17 | 2001-03-08 | Advanced Photonics Tech Ag | Erwärmungsstrecke zum Streckblasen |
DE20020320U1 (de) * | 2000-10-18 | 2001-03-15 | Advanced Photonics Technologies AG, 83052 Bruckmühl | Bestrahlungsanordnung |
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DE19822829A1 (de) * | 1998-05-20 | 1999-11-25 | Heraeus Noblelight Gmbh | Kurzwelliger Infrarot-Flächenstrahler |
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2000
- 2000-08-24 DE DE10041564A patent/DE10041564C2/de not_active Expired - Fee Related
-
2001
- 2001-07-11 AT AT01116888T patent/ATE465508T1/de not_active IP Right Cessation
- 2001-07-11 EP EP01116888A patent/EP1182689B1/de not_active Expired - Lifetime
- 2001-07-11 DE DE50115441T patent/DE50115441D1/de not_active Expired - Lifetime
- 2001-08-17 US US09/932,287 patent/US6713945B2/en not_active Expired - Fee Related
- 2001-08-21 JP JP2001250640A patent/JP3530509B2/ja not_active Expired - Lifetime
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FR2362488A1 (fr) * | 1976-08-19 | 1978-03-17 | Heraeus Schott Quarzschmelze | Element de radiateur infrarouge a refroidissement |
DD257200A1 (de) * | 1987-01-19 | 1988-06-08 | Ardenne Forschungsinst | Infrarot-hochleistungsstrahlungsquelle |
US5382805A (en) * | 1993-11-01 | 1995-01-17 | Fannon; Mark G. | Double wall infrared emitter |
EP0999724A2 (de) * | 1998-11-04 | 2000-05-10 | Industrieservis Gesellschaft für Innovation Technologie-Transfer und Consulting für Thermische Prozessanlagen mbH | Lampen- und Reflektoranordnung |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1744592A1 (de) * | 2005-07-14 | 2007-01-17 | Lg Electronics Inc. | Heizkörper |
US7439472B2 (en) | 2005-07-14 | 2008-10-21 | Lg Electronics Inc. | Heating body |
WO2016124279A1 (de) * | 2015-02-03 | 2016-08-11 | Heraeus Nobelight Gmbh | Vorrichtung zur bestrahlung eines zylinderförmigen substrats |
Also Published As
Publication number | Publication date |
---|---|
ATE465508T1 (de) | 2010-05-15 |
DE10041564A1 (de) | 2002-03-21 |
JP2002134253A (ja) | 2002-05-10 |
US20020024277A1 (en) | 2002-02-28 |
DE50115441D1 (de) | 2010-06-02 |
EP1182689B1 (de) | 2010-04-21 |
JP3530509B2 (ja) | 2004-05-24 |
DE10041564C2 (de) | 2002-06-27 |
US6713945B2 (en) | 2004-03-30 |
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