WO2023025879A1 - Radiateur fixe à infrarouges - Google Patents

Radiateur fixe à infrarouges Download PDF

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Publication number
WO2023025879A1
WO2023025879A1 PCT/EP2022/073657 EP2022073657W WO2023025879A1 WO 2023025879 A1 WO2023025879 A1 WO 2023025879A1 EP 2022073657 W EP2022073657 W EP 2022073657W WO 2023025879 A1 WO2023025879 A1 WO 2023025879A1
Authority
WO
WIPO (PCT)
Prior art keywords
reflector
infrared radiator
component
radiator
infrared
Prior art date
Application number
PCT/EP2022/073657
Other languages
German (de)
English (en)
Inventor
Thomas KÜBLER
Original Assignee
Kübler Gmbh
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 Kübler Gmbh filed Critical Kübler Gmbh
Priority to CA3229867A priority Critical patent/CA3229867A1/fr
Publication of WO2023025879A1 publication Critical patent/WO2023025879A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/12—Tube and panel arrangements for ceiling, wall, or underfloor heating
    • F24D3/16—Tube and panel arrangements for ceiling, wall, or underfloor heating mounted on, or adjacent to, a ceiling, wall or floor
    • F24D3/165—Suspended radiant heating ceiling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D13/00—Electric heating systems
    • F24D13/02—Electric heating systems solely using resistance heating, e.g. underfloor heating
    • F24D13/022—Electric heating systems solely using resistance heating, e.g. underfloor heating resistances incorporated in construction elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D5/00—Hot-air central heating systems; Exhaust gas central heating systems
    • F24D5/06—Hot-air central heating systems; Exhaust gas central heating systems operating without discharge of hot air into the space or area to be heated
    • F24D5/08—Hot-air central heating systems; Exhaust gas central heating systems operating without discharge of hot air into the space or area to be heated with hot air led through radiators

Definitions

  • the invention relates to a stationary and decentrally operated infrared radiator for heating buildings, with a reflector and at least two different components emitting IR radiation for heating, the reflector having a longitudinal axis and one perpendicular to the longitudinal axis and parallel has a transverse axis running to the reflector and a reflector surface.
  • the first component is designed as a light radiator or as a dark radiator and has a connection for supplying fuel gas.
  • the second component is designed as an electrical resistance heater with at least one heating element.
  • the infrared heater is preferably mounted hanging from a ceiling.
  • An infrared radiator to be operated in a stationary and decentralized manner is to be understood as meaning a heating device, in particular for halls, which is primarily designed as a ceiling device and is operated directly with fuel gas and/or with electrical energy.
  • Such decentralized infrared radiators generate the thermal energy themselves and emit it to the environment via the respective radiation components, mainly in the form of IR radiation. They work with fuel in a temperature range between 300 °C and 900 °C and electrically operated at up to 1200 °C.
  • Fuel is to be understood as meaning fuel gas and also fuel oil.
  • the thermal energy is generated externally, centrally outside of the respective radiator and fed to the radiators hydraulically by means of heat exchangers.
  • EP 2 492 600 B1 describes heating the combustion air before it is introduced into the burner with the aid of solar energy, with electrical energy also being used in addition to thermal energy.
  • EP 3239616B1 describes a system of an infrared radiator in which the radiant tube made of stainless steel can be heated both with fuel gas and with an electrical resistance heater.
  • DE10 2009 021158 A1 describes the basic structure of an infrared radiator with a reflector constructed as a housing with a reflector surface and an additional tubular reflector arranged between the radiation tube and the reflector surface.
  • An alternative construction of infrared radiators of this type is known from DE10 2012 025299 A1, in which a reflector is accommodated by a separate housing and additional tubular reflectors are also provided.
  • the respective reflector forms a hood for the warm air generated by the infrared radiators.
  • CN 203 605 313 U a standing device is known in which a gas heater and an electric heater are combined.
  • the invention is based on the object of designing and arranging an infrared radiator that can be operated with different energy media in such a way that, as a ceiling device, its temperature can be controlled more precisely and at the same time it is easier to manufacture.
  • first component and the second component in a direction of the transverse axis and/or the first component and the second component in a direction at right angles to the longitudinal axis and/or in a direction at right angles to the transverse axis - are offset from each other in front of the reflector surface.
  • This solution also includes the preferred solution that the first component and the second component are each arranged offset to one another in a direction of the transverse axis and in a direction at right angles to the longitudinal axis and to the transverse axis in front of the reflector surface.
  • the electric heating element partially heats up the component of the dark or light radiator intended for emitting during purely electric operation.
  • the dark radiator preferably forms an exhaust gas pipe acting as a radiation pipe for burning the fuel gas.
  • the radiant energy of the electrical heating elements taken up or absorbed by the exhaust gas pipe designed as a radiant tube is given off or emitted again as radiant heat. Since the dark or light radiator is also located completely under the reflector, the so-called shadowing of the electrically generated IR radiation does not have a negative effect on the radiation factor or the efficiency of the infrared radiator.
  • the advantage of shading becomes clear when power is adjusted by pulse width modulation of the electrical heating elements.
  • the mass of the dark or light radiator causes additional inertia, which results in a favorable equalization of the radiation profile over time.
  • the advantage according to the invention is greater in the case of dark radiators than in the case of light radiators due to the construction and the geometry.
  • Another advantage that supports this effect is the convection trough or hood of the reflector, which is usually formed by the reflector, in which the warm air collects and which thus prevents any convection loss due to the shading.
  • the structural separation of the radiation tube or incandescent body for the fuel gas energy medium from the resistance heating for the electricity energy medium means that the radiation temperatures can be specifically controlled separately for each medium. Due to the structural separation, the respective surface temperatures do not significantly affect each other in bivalent operation of the infrared heater, i.e. when heating is carried out with fuel gas and electricity at the same time. Compared to the relevant prior art, there is also no need for electrical insulation of the radiant tube and the processing of stainless steel for the radiant tube.
  • the method for operating an infrared radiator is also advantageous, in which the radiant tube absorbs the radiant energy of the electrical heating element by absorption and, with pulse width modulation of the electrical heating element, the mass inertia of the radiant tube is used to equalize the temporal radiation profile of the infrared radiator.
  • the radiation tube creates a shadow for the radiation of the Heating element or shading of the electrically generated IR radiation, which is advantageously used.
  • the infrared emitter has a mount which is designed, for example, as a reflector, housing and/or bulkhead, with the respective component being able to be attached to the mount.
  • a separate tubular reflector is provided between the reflector and the component.
  • the tube reflector makes it possible to adjust the radiation sector and the radiation direction of the respective component with regard to efficiency and shading.
  • the surface of the tube reflector can have different radii of curvature and an asymmetry relative to the respective component.
  • the reflector is double-walled and reflects the IR radiation emitted by all components.
  • On the side of the reflector opposite the reflector surface there is an outer wall which runs parallel to the reflector and is air-gap insulated from the reflector.
  • insulation is provided between the reflector and the tubular reflector. As a result, the amount of radiation reflected by the tubular reflector is optimized compared to pure air gap insulation.
  • the heating element has a heating coil that is encased in a metal and/or ceramic jacket.
  • the two materials are usually used alternatively. It has been shown that the advantage of pulse width modulation can be used for both types of heating elements, i.e. those made of metal and those made of ceramic.
  • the heating coil can be meander-shaped or Loops laid next to each other, embedded in or encased in a metallic and/or ceramic material.
  • the heating element is mounted on the reflector.
  • the reflector serves as a supporting component and a connection for the heating element through the reflector into a supporting housing that is present behind the reflector can thereby be avoided.
  • the first component designed as a dark radiator has a burner for fuel and at least one exhaust gas pipe coupled to the burner and designed as a radiation tube.
  • the exhaust pipe forms a very good buffer for absorbing the radiation emitted by the heating element and the exhaust pipe has very good properties for releasing or emitting this absorbed radiation.
  • the large surface and the large mass of an exhaust pipe are decisive for the advantage of being used as a buffer.
  • a suction fan is arranged at the end of the exhaust pipe, so that the exhaust pipe connects the burner to the suction fan.
  • the fuel does not flow freely into the exhaust pipe and burns completely in the exhaust pipe.
  • the exhaust gas pipe has at least one linear section or at least two linear exhaust pipes coupled via a connecting pipe that deflects the exhaust gas flow.
  • the course of the exhaust pipe is largely dependent on the geometry of the flame, which is also controlled by the suction fan.
  • the first component designed as a light radiator has at least one incandescent body and a connection for supplying fuel gas to the incandescent body.
  • Such heat sinks preferably made of ceramic, form a very large surface area for the fuel and can also have catalytic properties.
  • the combination of electrical components with components that are operated with fuel has the advantage that the infrared radiator has only one electrical connection that is provided for supplying and/or controlling all components.
  • the addition of a second component therefore does not make it necessary to increase the installation effort.
  • the reflector is placed on at least two bulkheads arranged parallel to the transverse axis, the bulkheads having attachment points for hanging up the infrared radiator.
  • the bulkheads have several recesses that serve as bearings for the exhaust pipe.
  • At least one electric ceiling light with a light source is provided as a working light adjoining the reflector surface in at least one direction of one of the axes or adjoining the reflector in at least one direction of one of the axes.
  • connection is designed for three-phase alternating current and the same number is connected to each phase of the connection connected to heating elements and/or lamps. This achieves an even network load.
  • FIG. 1 shows a sectional view at right angles to the longitudinal axis of an infrared radiator with an electric heating element made of metal and a dark radiator to be operated with fuel gas;
  • FIG. 1a shows an electrical heating element with a metal jacket running symmetrically around the heating spiral
  • FIG. 2 shows a sectional view at right angles to the longitudinal axis of an infrared radiator with an electrical heating element made of ceramic and a dark radiator to be operated with fuel gas,
  • Figure 3 is a sectional view of an infrared radiator with an electric
  • FIG. 4 shows a sectional view of an infrared radiator through a bulkhead
  • FIG. 5 shows a view from below of an infrared radiator according to FIG. 1;
  • FIG. 6 shows a view from below of an infrared radiator according to FIG. 2;
  • FIG. 7 shows a sectional view in the direction of the longitudinal axis of an infrared radiator according to FIG. 6;
  • FIG. 8 shows a basic sketch of an infrared radiator in a view from below.
  • the identical components shown in the following figures are not numbered throughout in all figures.
  • the respective reference number of a specific component can be determined from the respective first figure of a specific view. These are essentially Figures 1, 5 and 7.
  • FIG. 1 shows numerous details of an infrared radiator 1 in a sectional view.
  • the central structural component is an air-gap insulated reflector housing, which is formed from a trapezoidal reflector 2 with an inner reflector surface 20 and an outer wall 23 spaced apart by an air gap 10 .
  • the reflector 2 and the outer wall 23 are connected to one another via webs 11 .
  • the reflector 2 forms a hood 26 which is closed at the top and in which several components 30, 40 are arranged for generating heat in the form of infrared radiation.
  • the air gap 10 is accessible via holes 29 in the reflector 2, so that air can be sucked out of the hood 26 via the air gap 10 and fed to a burner 3 (FIG. 7).
  • the reflector 2 rests on a bulkhead 25 shown in section in FIG. 4, which has lugs 27 for hanging.
  • a component designed as a radiant tube 30 for heating is positioned identically below the reflector 2 .
  • the radiant tube 30 serves to supply and burn fuel gas and has two sections A1 and A2 (FIG. 8) running parallel in the direction of the longitudinal axis L.
  • a second heating component is provided between the radiant tube 30 and the reflector surface 20, which reflects and also focuses the infrared rays more precisely than the reflector surface 20.
  • insulation 6 is introduced between the tubular reflector 21 and the reflector 2, insulation 6 is introduced.
  • a second heating component is provided in the form of an electrical resistance heater 4 .
  • This comprises three heating elements 40 running in the direction of the longitudinal axis L, which have a heating spiral 41 with a metallic jacket 42, as shown in more detail in FIG. 1a.
  • an additional tubular reflector 22 is provided above the heating elements 40 in front of the reflector surface 20, which reflects and also focuses the infrared rays more precisely than the reflector surface 20.
  • the efficiency can be increased by additional insulation 6.
  • the electrical resistance heater 4 is arranged centrally above the two sections of the radiant tube 30 . In the direction of the transverse axis Q, the electrical resistance heater 4 is also offset relative to the radiant tube 30, as in the vertical direction at right angles to the transverse axis Q at the top. Due to the offset, the radiant tube 30 is in the radiant sector of the heating elements 40, which is shown on the left-hand side as an example for a heating element 40 with dashed lines. This always creates a radiation shadow, regardless of whether the radiation tube 30 is colder or warmer than the heating elements 40.
  • heating elements 40 are provided with a jacket 42 made of ceramic, from which the heating coil 41 is embedded. Due to the larger base area of ceramic heating element 40 compared to heating element 40 made of metal, insulation 60 is placed between ceramic heating element 40 and tubular reflector 22 . The ceramic heating element 40 also creates a radiation shadow, which is shown as an example for the left-hand section of the radiation tube 30 .
  • FIG. 3 shows a combination of metal and ceramic heating elements 40 in connection with a dark radiator.
  • the ceramic heating elements 40 are positioned laterally on the flanks of the reflector 2. Irrespective of the choice of material for the electrical resistance heater 4, there is an offset to the radiant tube 30 in all of the exemplary embodiments shown, which according to the invention enables simpler power adjustment by pulse width modulation of the electrical heating elements as well as independent assembly.
  • the bulkhead 25 has two recesses 28 for mounting the radiant tube 30, as well as three recesses 28 for the three heating elements 40 made of metal.
  • the exemplary embodiment corresponding to FIG. 5 The two sections A1 and A2 of the radiant tube 30 are fluidically connected to one another at their end opposite the burner 3 via a connecting tube 32 .
  • the two exemplary embodiments according to FIGS. 5 and 6 are identical in construction and are equipped with ceiling lights 50.
  • a lamp housing 5 is connected to the reflector 2 on both sides, through which the reflector 2 is increased in length.
  • the lamp housing 5 closes off at the bottom with a translucent cover 52 .
  • a lamp 51 is provided behind the cover 52 as a working light with a luminous flux of at least 5,000 lumens and up to 150,000 lumens in the lamp housing 5 .
  • the housing 5 serves to accommodate the burner 3, the suction fan 31 and the flame tube 33 at the same time as the lamp housing.
  • the sectional view shows that this technology is housed in the left-hand light housing 5.
  • the flame is introduced into the radiant tube 30 via the flame tube 33 adjoining the burner 3 .
  • the light source 51 and the cover 52 are provided in the light housing 5 below the technology.
  • FIG. 8 outlines further exemplary embodiments in which the reflector 2 is widened by differently arranged and dimensioned lamp housings 5 and the convection is thereby slowed down.
  • a first possibility is to arrange further lamp housings 5 parallel to the longitudinal axis L on one side in the direction of the longitudinal axis L or, as indicated by the dashed line, also on both sides, so that the reflector 2 is also enlarged in its width, i.e. in the direction of the transverse axis Q.
  • the lamp housing 5 could be constructed as a module 54 and attached to or attached to the already existing housing 24 or to a first lamp housing 5 .
  • Appropriate contacts (not shown in detail) between the modules and the lamp housing 5 or housing 24 provide the power supply for the controller and for the lighting means 51 when plugging in or plugging in.
  • a further possibility envisages arranging the reflector 2 and the technology in a common housing 24 and also mounting the two ceiling lights 50 in this common housing 24, which are provided on both sides in the direction of the longitudinal axis L.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Resistance Heating (AREA)
  • Electric Stoves And Ranges (AREA)

Abstract

L'invention concerne un radiateur fixe à infrarouges (1) qui est destiné à fonctionner d'une manière décentralisée pour chauffer des bâtiments, comprenant un réflecteur (2) et au moins deux composants différents (30, 40) qui émettent un rayonnement infrarouge (IR) pour chauffer, le réflecteur (2) ayant un axe longitudinal (L) et un axe transversal (Q), qui s'étend à angle droit par rapport à l'axe longitudinal (L) et parallèlement au réflecteur, et une surface de réflecteur (20). Le premier composant (30) est conçu comme un radiateur clair ou un radiateur sombre et possède une connexion pour une alimentation en gaz combustible. Le second composant (40) est conçu comme un dispositif chauffant à résistance électrique (4) ayant au moins un élément chauffant. L'objectif de l'invention est de réguler la température plus précisément et simultanément pour produire le radiateur à infrarouges plus simplement. Le premier composant (30) et le second composant (40) sont respectivement disposés de manière décalée l'un par rapport à l'autre dans une direction de l'axe transversal (Q) et dans une direction à angle droit par rapport aux deux axes (L, Q) devant la surface de réflecteur (20).
PCT/EP2022/073657 2021-08-27 2022-08-25 Radiateur fixe à infrarouges WO2023025879A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA3229867A CA3229867A1 (fr) 2021-08-27 2022-08-25 Radiateur fixe a infrarouges

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202021004139 2021-08-27
DEDE202021004139.7 2021-08-27

Publications (1)

Publication Number Publication Date
WO2023025879A1 true WO2023025879A1 (fr) 2023-03-02

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Application Number Title Priority Date Filing Date
PCT/EP2022/073657 WO2023025879A1 (fr) 2021-08-27 2022-08-25 Radiateur fixe à infrarouges

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CA (1) CA3229867A1 (fr)
WO (1) WO2023025879A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989001592A1 (fr) * 1987-08-18 1989-02-23 Frico Ab Dispositif dans des appareils d'air chaud
DE19617718A1 (de) * 1996-04-24 1997-10-30 Uwe Klix Deckenradiator
DE102009021158A1 (de) 2009-05-13 2010-11-18 Kübler Gmbh Infrarot-Heizung, insbesondere zum Beheizen von Hallen
US20110079218A1 (en) * 2009-09-25 2011-04-07 Detroit Radiant Products Co. Radiant heater
EP2492600B1 (fr) 2011-02-28 2013-10-09 GoGas Goch GmbH & Co Agencement de chauffage d'une pièce
CN203605313U (zh) 2013-10-21 2014-05-21 胡东升 一种带电热器的燃气取暖器
DE102012025299A1 (de) 2012-12-28 2014-07-03 Helmut Haimerl Heizstrahler mit Heizrohrelement
EP3239616B1 (fr) 2016-04-29 2018-08-01 Kübler GmbH Dispositif de chauffage infrarouge destiné à chauffer un bâtiment et procédé de chauffage d'un bâtiment faisant appel à un tel dispositif de chauffage infrarouge

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989001592A1 (fr) * 1987-08-18 1989-02-23 Frico Ab Dispositif dans des appareils d'air chaud
DE19617718A1 (de) * 1996-04-24 1997-10-30 Uwe Klix Deckenradiator
DE102009021158A1 (de) 2009-05-13 2010-11-18 Kübler Gmbh Infrarot-Heizung, insbesondere zum Beheizen von Hallen
US20110079218A1 (en) * 2009-09-25 2011-04-07 Detroit Radiant Products Co. Radiant heater
EP2492600B1 (fr) 2011-02-28 2013-10-09 GoGas Goch GmbH & Co Agencement de chauffage d'une pièce
DE102012025299A1 (de) 2012-12-28 2014-07-03 Helmut Haimerl Heizstrahler mit Heizrohrelement
CN203605313U (zh) 2013-10-21 2014-05-21 胡东升 一种带电热器的燃气取暖器
EP3239616B1 (fr) 2016-04-29 2018-08-01 Kübler GmbH Dispositif de chauffage infrarouge destiné à chauffer un bâtiment et procédé de chauffage d'un bâtiment faisant appel à un tel dispositif de chauffage infrarouge

Also Published As

Publication number Publication date
CA3229867A1 (fr) 2023-03-02

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