EP3163162B1 - Radiateur à infrarouge mobile - Google Patents

Radiateur à infrarouge mobile Download PDF

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Publication number
EP3163162B1
EP3163162B1 EP16020419.4A EP16020419A EP3163162B1 EP 3163162 B1 EP3163162 B1 EP 3163162B1 EP 16020419 A EP16020419 A EP 16020419A EP 3163162 B1 EP3163162 B1 EP 3163162B1
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EP
European Patent Office
Prior art keywords
unit
combustion
housing
radiant heater
combustion unit
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.)
Active
Application number
EP16020419.4A
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German (de)
English (en)
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EP3163162A1 (fr
Inventor
Johannes LANDRICHINGER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lasco Heutechnik GmbH
Original Assignee
Lasco Heutechnik 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.)
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Publication date
Priority claimed from DE102016114527.0A external-priority patent/DE102016114527A1/de
Application filed by Lasco Heutechnik GmbH filed Critical Lasco Heutechnik GmbH
Publication of EP3163162A1 publication Critical patent/EP3163162A1/fr
Application granted granted Critical
Publication of EP3163162B1 publication Critical patent/EP3163162B1/fr
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B20/00—Combustion apparatus specially adapted for portability or transportability
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B40/00—Combustion apparatus with driven means for feeding fuel into the combustion chamber
    • F23B40/04—Combustion apparatus with driven means for feeding fuel into the combustion chamber the fuel being fed from below through an opening in the fuel-supporting surface
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B60/00—Combustion apparatus in which the fuel burns essentially without moving
    • F23B60/02—Combustion apparatus in which the fuel burns essentially without moving with combustion air supplied through a grate

Definitions

  • the invention relates to a mobile radiant heater with a combustion unit for burning solid fuel, a transparent radiation unit for radiating combustion heat into the environment, a flue gas flue, which is directed upwards through the radiation unit, and a conveyor for conveying solid fuel to the combustion unit.
  • Radiant heaters are known for heating semi-open tents or in the outdoor area, in which gas from a gas bottle is burned over a large area along a metal network, so that this heating surface radiates the heat in a desired direction.
  • the heating effect is mainly based on radiant heat that strikes the person or objects to be heated.
  • the radiant heater When using the radiant heater as a mobile radiant heater, it is advantageous if there is as much weight as possible or a high proportion of the radiant heater overall in its lower area, so that the radiant heater has good stability. It is beneficial for this if the solid fuel storage is below the Burning unit is.
  • the weight of the fuel storage can contribute to the stability of the heater position.
  • the delivery unit is expediently designed in such a way that it delivers the solid fuel from the solid fuel storage to over a burner plate of the burner unit, so that the solid fuel can fall onto the burner plate, for example, it is dropped onto the burner plate from above. Underfeed firing is also possible, in which the solid fuel is conveyed from below through an opening in the burner plate.
  • the radiant heater can be a stationary radiant heater. However, it is expediently a mobile radiant heater which can be transported manually as a whole, so that it can be moved simply by rolling, carrying or moving without impairing its function. Such a displacement is expediently also possible during the regular operation of the radiant heater.
  • the combustion unit has a burner and a burner housing, the burner completely radially enclosing a combustion chamber and the burner housing completely radially surrounding the burner.
  • Such an at least radially double-shell design allows heat transfer from the burner to an environment of the radiant heater in the area of the burner to be restricted. This can increase the safety of the radiant heater.
  • the axial direction can be related to an axis of the combustion unit and in particular of the radiant heater as a whole, which can run longitudinally through the combustion unit and in particular through the radiation unit, in particular in the center.
  • the axial direction is expediently directed vertically upward, so that the radial directions are horizontal.
  • firing unit is detachably fastened in a housing in such a way that the firing unit can be removed from the housing without tools for emptying ash.
  • the firing unit can be removed from the housing manually and emptied into an ash pan, for example.
  • the firing unit expediently comprises an upper opening which faces the radiation unit. If the firing unit is removed from the housing and turned upside down, the ashes can come out of the burner plate through the upper opening and fall, for example, into an ash box.
  • the combustion unit has a lateral fuel injection opening and the combustion unit is tilted so that the ash falls out of the fuel injection opening.
  • the combustion unit is thus tilted laterally by, for example, 90 degrees, so that the ash falls onto a side wall in which the fuel insertion opening lies and then falls out through it.
  • This procedure has the advantage that the ash can be removed even with a double-shell combustion unit.
  • the burner housing has an opening on the side of the fuel insertion opening from the intermediate space between the combustion unit and the burner housing, the ash can be emptied from this intermediate space through these openings. Then not only the combustion chamber but also the intermediate space is emptied.
  • the combustion unit has an ash collecting space which can be emptied by tilting the combustion unit.
  • the ash collecting space can be part of the combustion chamber and / or an intermediate space between a burner and a burner housing radially enclosing it.
  • the combustion unit has a handle.
  • the handle is expediently a unit which projects radially from a burner or a burner housing, if present, so that the burner unit can be gripped without touching the burner and possibly the burner housing if present.
  • the combustion unit is plugged onto a fastening unit in its operating position.
  • the combustion unit can be detached from the fastening unit by pulling it off, this advantageously being possible without tools.
  • the fastening unit can have a bolt and a sleeve which is pushed onto the bolt. Several such fastening units are also possible.
  • the firing unit becomes very hot during operation.
  • the combustion unit is arranged in a housing with a housing base in such a way that a base the combustion unit is spaced downward from the housing base by air, in particular is completely spaced apart by air. In this way, excessive exposure to heat, for example on a solid fuel store, can be avoided.
  • Such a spacing can be easily achieved if the combustion unit hangs on a burner suspension, for example one or more fastening units. Standing, i.e. supporting downwards and thus excessive heat transfer downwards, can be dispensed with.
  • combustion air can flow radially into all sides of a combustion chamber. This can be achieved particularly effectively if the combustion unit has a burner and a burner housing and an air supply opens into a space between the burner and the burner housing, so that combustion air can be blown into the space during operation. Openings in the burner allow the combustion air to get into the combustion chamber from the intermediate space and thus stimulate the combustion.
  • the burner expediently has an inner housing which is arranged inside the burner housing. The space is expediently accessible to the outside only through the air supply through the burner housing or is only connected to the outside in this way. Inwardly, the intermediate space is expediently connected to the combustion chamber only via air openings in the inner housing.
  • the air openings can be primary air openings and optionally additional secondary air openings, the secondary air openings advantageously being located above the primary air openings.
  • the secondary air openings are advantageously arranged in a radially tapered area of the combustion chamber or the combustion unit.
  • the secondary air intakes can lie in a transition area between the firing unit and the radiation unit.
  • the primary air openings can be holes in the burner inner housing, the hole axis of which is expediently aligned eccentrically to the burner axis.
  • the hole axes are all arranged at the same angle to the radial direction of the burner, that is to say they all aim past the burner axis at the same distance.
  • the radial direction is the direction from the center of the hole perpendicular to the burner axis.
  • the angle can be between 20 ° and 60 °.
  • An air flow can be achieved in the burner, which forms a vortex around the burner axis, so that good combustion is achieved. The same can also apply to the secondary openings.
  • the air outlet expediently opens into a screw chamber in which a screw conveyor is arranged. Air can be blown out of the conveyor into a combustion chamber, so that backburning into the conveyor is counteracted.
  • the firing unit can become very hot during prolonged operation of the radiant heater, so there is a risk of external burns. This can be counteracted if the combustion unit is arranged in a housing with a housing base below the combustion unit and a housing cover above the combustion unit and one or more openings are present in the housing cover and / or housing base through which air from a housing space around the combustion unit goes up can leave the housing space or air can flow into the housing space from below. In this way, air cooling of the combustion unit can be achieved.
  • the housing has an air supply, so that cooling air can flow from the air supply through the housing space to cool the combustion unit.
  • the air supply can be an open housing area or an opening which is connected to a blower unit directly, for example via an air hose or via an overpressure space.
  • a further advantageous embodiment of the invention provides that the radiant heater has at least one electrical unit and an energy supply unit for supplying the unit with electrical energy.
  • the energy supply unit expediently comprises a rechargeable battery, so that the radiant heater can be operated without cables becomes. This counteracts a risk of stumbling, especially when operating outdoors.
  • the foot unit for mobile support on a floor.
  • the foot unit expediently contains a foot housing which encloses a housing space in which an energy supply unit, for example a rechargeable battery, is arranged.
  • the radiant heater has an electrical interface for connection to an electrical energy supply from the outside.
  • a rechargeable battery can be charged, for example, via a cable connection to a socket.
  • a further electrical interface for the series connection of two or more radiant heaters is present in the radiant heater. In this way, several radiant heaters can be supplied from one socket.
  • the radiant heater has a cable unit for the variable removal of an electrical cable, for example a cable drum.
  • the cable unit is advantageously arranged in a foot housing space.
  • the invention also relates to a method for heating by means of radiant heat, according to claim 14.
  • hot combustion gas is passed through a flue gas duct of the radiation unit and there releases heat of combustion to the radiation unit.
  • the solid fuel is advantageously conveyed from a solid fuel store to the combustion unit by a conveyor device of the radiant heater, in particular automatically.
  • FIG 1 shows a schematic representation of a radiant heater 2 with a combustion unit 4 and a radiation unit 6 for radiating combustion heat into the environment. Furthermore, the radiant heater 2 comprises a solid fuel store 8, optionally a conveyor device 10 is provided with which solid fuel is fed from the solid fuel store 8 to the combustion unit 4.
  • the radiant heater 2 can be a stationary radiant heater 2, which is screwed onto a floor, for example, or a mobile radiant heater 2.
  • a transport unit 12 is advantageous which forms a supporting structure for all further units of the mobile radiant heater 2, so that the entire mobile radiant heater 2 on the transport unit 12 can be raised and / or moved, for example.
  • the radiant heater 2 weighs less than 100 kg, in particular less than 70 kg, without solid fuel, so that manual lifting by, for example, 2 people is easily possible.
  • Wheels 26, as shown in FIG FIG 2 and FIG 5 are shown by way of example so that the radiant heater 2 can easily be moved manually, possibly even during its regular operation.
  • the mobile radiant heater 2 obtains its mobility from its compact structure, its low weight and in particular from the optionally available transport unit 12. In this way, the mobile radiant heater 2 can be transported by a single person over a distance of several meters, for example, by hand.
  • the entire construction of the mobile radiant heater 2 is such that a movement of the transport unit 12 moves the entire mobile radiant heater 2, which in this case is designed to be stable for tilting at least 30 ° without damage to a regular operating orientation, for example a vertical axis.
  • a good system is also assisted by an optional unit system 14 with one or more electrical units, such as one or more electrical drives, a control unit and / or a sensor unit with one or more sensors.
  • the unit system 14 is in the schematic representation in FIG 1 only shown as a rectangular box. However, it is possible that the aggregate system 14 has several units, such as drives, which can be arranged at distant positions within the radiant heater 2. A spatially contiguous arrangement, such as the box of the aggregate system 14 FIG 1 suggests is not necessary.
  • FIG 1 Two arrows mark in FIG 1 a combustion air supply 16, wherein one of the arrows, for example the straight and centered arrow, a primary air supply and the other arrow, for example the curved arrow, indicate a secondary air supply and / or an alternative primary air supply.
  • one of the arrows for example the straight and centered arrow, a primary air supply and the other arrow, for example the curved arrow, indicate a secondary air supply and / or an alternative primary air supply.
  • the ash removal from the combustion unit 4 can be simplified by an optional ash removal 18. It is also possible to design the ash removal 18 as part of the combustion unit 4, so that, for example, the combustion unit 4 can be removed from a surrounding housing and used as an ash removal 18.
  • a likewise optional chimney 20 serves as a flue gas outlet into the environment and above all as a catcher for fly ash.
  • it expediently contains an ash collecting container 22, in which the majority of the fly ash passing through the chimney 20 is captured and deposited.
  • FIG 1 the essential units of the radiant heater 2 are shown schematically.
  • the spatial arrangement of the units with respect to one another is not specified here and can be determined by the FIG 1 shown embodiment differ.
  • the conveying device 10 does not convey the fuel into the combustion unit 4 from below but at an angle from above, so that the solid fuel is, for example, on a burner plate or a furnace trough is dropped. This is from the example FIG 6 shown.
  • the radiation unit 6 also does not have to be arranged vertically, but can also be inclined or designed as a wall with a greater width than height. It can be designed as a straight or curved surface and in general any shape.
  • a reflector 23, which bundles the heat radiated by the radiation unit 6 in a desired direction, is particularly advantageous in the case of a design as or in the case of a wall.
  • solid fuel is conveyed from the solid fuel storage 8 by means of the conveying device 10 to the combustion unit 4 and burned there.
  • Combustion gases are generated in the combustion unit 4 and are guided through the radiation unit 6.
  • Combustion gases are referred to in the following simply as flue gases and, depending on the temperature, also include flames which protrude into the radiation unit 6 and possibly extend completely through it.
  • the radiation unit 6 is heated by the hot flue gases and in turn radiates heat into the surroundings of the mobile radiant heater 2.
  • the radiated heat results from components of the radiation unit 6, which radiate heat through their temperature like a so-called black radiator known from physics. Depending on the temperature of the components, they glow in whole or in part to an orange glow, so that in addition to the infrared radiation mentioned, visible radiation is added. Thermal energy is also radiated directly by flames in the radiation unit 6, which penetrate directly through the radiation unit 6 when it is transparent.
  • the flue gases cooled in the radiation unit 6 are conducted into the surroundings of the mobile radiant heater 2, for example through the chimney 20.
  • part of the combustion heat generated in the combustion unit 4 is dissipated into the surroundings via the radiation unit 6 as radiant heat.
  • the radiation unit 6 lights up glowing, especially in its lower area.
  • the flue gas generated in the combustion unit 4 is advantageously guided upwards through the radiation unit 6.
  • the buoyancy of the hot flue gas causes a natural draft, by means of which combustion air can be drawn into the combustion unit 4 from below.
  • Such a natural draft is already sufficient for good combustion, so that a flame temperature of 800 ° C to 900 ° C can be reached in the combustion unit 4.
  • an aggregate-driven combustion air supply 16 is advantageous.
  • Combustion air is conveyed to the combustion unit 4 by the blower unit, for example in overpressure operation, and can amplify any natural draft that may be present. Flame temperatures from 1000 ° C to 1400 ° C are possible.
  • the natural draft can be dispensed with, so that the combustion gases are only supplied to the combustion unit 4 by an aggregate-driven combustion air supply.
  • the unit system 14 comprise an induced draft fan which produces the negative pressure in the combustion unit 4 and expediently maintains the flue gas flow through the radiation unit 6 when under pressure.
  • the induced draft fan is advantageously arranged downstream of the combustion unit 4 and in particular downwards of the radiation unit 6.
  • a primary air supply is sufficient for an aggregate-driven combustion air supply.
  • Combustion air is expediently blown into a flame area from the inside, so that the flame area surrounds the combustion air outlet.
  • An optional secondary air supply promotes more complete combustion. Secondary air is blown into a higher area of the flame area, expediently from the outside into the flame area.
  • Primary air and secondary air can in this case be fed into the combustion unit 4 via a common air supply or can be generated jointly by separate channels and by a blower or in each case a separate blower.
  • the unit system 14 has one or more drive motors for one or more units.
  • one or more fans, one or more drives of the conveying device 10 and / or one or more holding magnets for holding a combustion chamber flap can be driven by a motor.
  • the radiation unit 6 and the memory 8 all units can optionally be seen which, individually or in any combination in a variant, can supplement the mobile radiant heater 2 and can also be exchanged between the different variants of the radiant heater 2.
  • essentially the same components are numbered with the same reference numerals.
  • similar components in different versions are also designated with the same reference numbers and different reference letters, units with the same reference numbers being interchangeable. In this way, a combination of a mobile radiant heater 2 with units of different reference letters is to be represented. If a reference number is mentioned alone without a reference letter, such as for example FIG 1 , all relevant units are addressed.
  • FIG 2 each shows a possible embodiment of a plurality of units of the mobile radiant heater 2, which are reproduced for the sake of illustration only to form a mobile radiant heater 2a.
  • a possible variation of a transport unit 12a, a solid fuel store 8a, a conveying device 10a, a combustion unit 4a, an ash removal 18a, a radiation unit 6a, a downward-looking reflector 23a and a chimney 20a is shown.
  • the transport unit 12a FIG 2 has a supporting structure 24, which is designed with a wheel or a roller 26 for the rolling transport of the mobile radiant heater 2a.
  • a roller-free stand 28 prevents the mobile radiant heater 2a from rolling away undesirably.
  • the entire mobile radiant heater 2a can be raised, for example with the aid of a forklift that moves its forks into a cavity between roller 26 and base 28. Lifting by hand is also possible, for this purpose a handle 30 is attached to the supporting structure 24.
  • the handle 30 can be designed on only one side for rolling movement or on both sides for lifting and carrying the mobile radiant heater 2a.
  • the supporting structure 24 contains the storage 8a, the conveyor 10a and the aggregate system 14a as well as expediently also the combustion unit 4a and the ash removal 18a.
  • the radiation unit 6 is mounted on or in the supporting structure 24.
  • the mobile radiant heater 2 can be fired with biomass pellets.
  • the solid fuel store 8 is expediently a pellet store.
  • the memory 8 can be designed to taper downwards, for example taper conically downwards or vice versa.
  • a conveying inlet of the conveying device 10 can be arranged, into which the pellets fall from above or are pushed in from the side, as is exemplified in FIG FIG 2 you can see.
  • the conveying device 10 can be positioned inside or outside the solid fuel storage 8, for example symmetrically within the solid fuel storage 8, as exemplified in FIG FIG 2 you can see. In this way, fuel, such as pellets, can penetrate all around into the conveying device 10 or its entrance.
  • the solid fuel storage 8 expediently has an opening in its upper region for the filling of solid fuel.
  • the firing unit 4 can have a firing surface, such as a firing grate, a firing plate or a firing trough, on which the solid fuel is burned.
  • the burning surface can be arranged at an upper end of the conveyor device 10, in particular in the case of underfeed firing, or under an outlet of the conveyor device 10, as shown in FIG FIG 6 is shown.
  • FIG 3 shows the firing unit 4a FIG 2 in an enlarged and detailed representation.
  • a firing trough 32 widens conically or pyramidally at the top, so that with pellets moving in from below, a fire surface that increases ever larger arises.
  • a primary air outlet 34 is arranged in the middle of the firing trough 32, through which primary combustion air can flow into the flame region 36 of the combustion unit 4a.
  • the conveyor 10a is designed with a screw conveyor 38 which runs on a shaft 40 and within a conveyor tube 42. Firing trough 32 and conveyor pipe 42 can be made in one piece, in particular the conveying pipe 42 going up to the firing trough 32 and expanding into the firing trough 32. By rotating the shaft 40, pellets are conveyed from the bottom upwards within the conveying pipe 42 and transported to the firing trough 32.
  • the shaft 40 can be a hollow shaft into which primary combustion air is blown from below through the aggregate system 14.
  • the hollow shaft 40 has openings 44 in the region of the firing trough 32, which connects the hollow space of the hollow shaft 40 to the flame region 36 on or within the firing trough 32.
  • the openings 44 are aligned laterally so that the primary combustion air flows out of the hollow shaft 40 laterally, especially all around.
  • the hollow shaft 40 is closed at the top.
  • a blower unit 46 of the aggregate system 14a is shown in FIG FIG 4 shown schematically.
  • the conveyor device 10 contains a combustion air channel through which combustion air from the combustion air drive 46 is blown into a flame region 36 in the combustion unit 4.
  • the combustion air duct can run through the shaft 40 of the conveyor 10a.
  • the combustion air drive 46 comprises a radial fan or an axial fan, the fan output of which is connected to the hollow shaft 40. In this way, primary combustion air from the combustion air drive 46 is blown into the inner cavity of the hollow shaft 40.
  • the assembly system 14a further comprises a drive 47 for rotating the shaft 40 and thus the worm 38.
  • the shaft 40 is mounted in the supporting structure 24.
  • the combustion unit 4a comprises a combustion chamber 48 which surrounds the flame region 36.
  • the combustion chamber 48 is open at the top and opens into a flue gas flue 50, which is already part of the radiation unit 6 at its lower end or only in the further course.
  • the top 52 of the combustion chamber 48 which is open at the top, is tapered towards the top, so that its opening is wider at the bottom than at the top and the hot flue gas has a tapered section for acceleration into the flue gas duct 50.
  • the hot flue gas passes through the flue gas duct 50 in a main flow direction 54, which in the exemplary embodiment shown FIG 2 runs vertically upwards.
  • the flue gas duct 50 comprises a wall 56, on the inside of which the hot flue gas flows.
  • the Wall 56 of the flue gas flue 50 is thereby heated up and radiates the heat to the outside as radiant heat.
  • the wall 56 can be formed from sheet metal or glass, the design from glass having the advantage that radiant heat from the flue gas or the flames can pass through the wall 56 directly, so that even with a small fire, more heat can be radiated.
  • a turbulator 58 is arranged inside the wall 56 or the flue gas duct 50.
  • An example of a turbulator 58a is shown in FIG FIG 2 indicated schematically.
  • the turbulator 58a is equipped with vortex elements 60a, which are shown in the example FIG 2 inclined swirl elements 60a are in the form of swirl plates, along which the hot flue gas flows and is swirled by them.
  • vortex elements 60a which are shown in the example FIG 2 inclined swirl elements 60a are in the form of swirl plates, along which the hot flue gas flows and is swirled by them.
  • pellets are entered into the pellet store 8. By rotating the screw 38, these are conveyed into the firing unit 4 from bottom to top.
  • the pellets can be lit by hand, for example with a grill lighter, or automatically with a lighter, for example a hot air lighter, by heating air by means of electrical energy above the flame temperature of pellets and blowing them between them.
  • the blower unit 46 blows primary air into the area of a burner plate, such as the combustion bowl 32, so that the pellets be kindled.
  • a flame temperature or flue gas temperature is measured with a temperature sensor, which can be arranged in the combustion unit 4 or within the radiation unit 6. Based on the measured values, a feed motor can be controlled and the amount of fuel delivered per time can be set.
  • the hot flue gas produced by the combustion flows upwards through the opening of the ceiling 52 of the combustion chamber 48 into the radiation unit 6 and flows along the wall 56, whereby it is swirled by the turbulator 58. It gives off part of its thermal energy to the wall 56 and the turbulator 58, which becomes red or orange glowing in its lower region.
  • the flue gas continues to cool down, reaches the chimney 20 and leaves the mobile radiant heater 2 through it.
  • the fly ash entrained by the flue gas is largely separated out in the ash collecting container 22.
  • the radiation unit 6 emits the majority of its energy radially outward as radiant heat. To protect against burns, it includes a protective unit 62 outside the wall 56, for example a protective grid 62a, which surrounds the wall 56 of the flue gas duct 50 radially all around.
  • the radiation unit 6a is adjacent upwards by a reflector 22a, which reflects radiation radiating upwards downwards, so that less radiant heat is lost upwards.
  • FIG 5 shows a further radiant heater 2b with a supporting structure 24b, a radiation unit 6b, which is radially surrounded by a protection unit 62b, and a chimney 20b above the radiation unit 6b.
  • Wheels 26 serve a manual Transport so that the mobile radiant heater 2b can be easily moved, for example on a terrace of a catering establishment.
  • Two electrical interfaces 64 and a cable unit 66 can also be seen at one of the interfaces 64.
  • the interfaces 64 are electrical plugs, a male plug and a female plug being provided, in order to connect several radiant heaters in series 2 to enable.
  • the right electrical interface 64 is a commercially available male plug for plugging into a standard building socket.
  • the left interface 64 can be a female plug, for example a socket into which a plug of a further radiant heater 2 can be inserted.
  • the two electrical interfaces 64 are electrically connected to one another, so that the power supply can be passed through the mobile radiant heater 2 to the neighboring radiant heater 2.
  • FIG 6 shows the mobile radiant heater 2b in a cross section from above and FIG 7 shows the mobile radiant heater 2b in a longitudinal section from the side.
  • the position of the other cross section is indicated in both figures by the dash-dotted line.
  • the supporting structure 24b and the solid fuel storage 8b can be seen in both figures.
  • FIG 7 shown rear wall 68 removable, so that the solid fuel storage 8b is easily accessible, as from FIG 6 you can see.
  • the conveyor 10b with the screw conveyor 38 and a combustion unit 4b, which is connected to the conveyor 10b, can be seen.
  • the radiation unit 6b with the protection unit arranged around it 62b recognizable.
  • the chimney 20b with an ash collecting container 22b is arranged on the radiation unit 6b.
  • the protection unit 62b is in FIG 5 shown as a transparent unit through which the radiation unit 6b is visible.
  • the protective unit 62 can be a grid, for example a wire grid, a perforated plate with a sufficient number or sufficiently large openings or another protective unit which is as metallic as possible, through which the thermal energy radiated radially outward by the radiation unit 6 can be easily passed.
  • the protection unit 62 should heat up as little as possible in order not to represent a source of danger when touched.
  • the combustion unit 4b can be removed particularly easily from a housing 70 which partially radially surrounds the combustion unit 4b.
  • the combustion unit 4b is shown in two versions. On the right it is fastened within the housing 70 in the radiant heater 2b. It is removed on the left and turned upside down so that the ash collected in it can be poured into an ash container 72, for example a metal bucket.
  • the combustion unit 4b contains a handle 74 on which the combustion unit 4b can be easily removed from the housing 70. The ash falls out of the combustion unit 4b through a filler neck 92 and an opening 94 in the burner housing 84. If it is turned upside down, the ash falls out of the combustion unit 4b through an upper opening 95.
  • FIG 6 the suspension of the combustion unit 4b in the housing 70 is shown.
  • the combustion unit 4b hangs on a burner suspension 76, of which it is shown in FIG FIG 6 can be subtracted by an arrow 78.
  • the burner suspension 76 expediently comprises one or better two bolts 80, onto each of which a sleeve 82 is pushed.
  • the bolts 80 are fixed to the housing and the sleeves 82 are fixed to the combustion unit, which is also possible vice versa.
  • the suspension 76 expediently engages above the center of gravity of the combustion unit 4b so that it can hang down stably.
  • the bolt 80 can have a thickening, for example, over which the sleeve 82 can only be pushed with an additional effort. A lack of this force prevents undesired slipping.
  • the combustion unit 4b is particularly securely held in place by a positive connection with an element fixed to the housing, for example by a lever which engages behind the element fixed to the housing, the rear grip being able to be released by moving the lever.
  • the firing unit 4b is formed in two shells.
  • a burner housing 84 encloses a burner 86, which in turn encloses an inner combustion chamber 88 by means of an inner housing.
  • the combustion unit 4b can be kept relatively cool on the outside.
  • the burner housing 84 is radial to the side and to the front Housing 70 spaced.
  • the burner housing 84 is spaced axially downward from a housing base 90, as from FIG 7 you can see.
  • the burner housing 84 hangs on the burner suspension 76 above the housing base 90 and is completely separated from the housing base 90 by a layer of air. As a result, the housing base 90 remains relatively cool, and combustion on the housing base 90 by contact is counteracted.
  • the latter is located in such a way that it is cooled by an air flow that flows around it convectively.
  • the housing 70 is closed radially all around the combustion unit 4b, so that a heat build-up can form inside the housing 70, which in turn heats the housing 70 strongly.
  • a housing cover 91 above the combustion unit 4b is provided with openings 93, through which the ambient air heated by the combustion unit 4b can leave the housing interior of the housing 70 upwards. It enters the space around the radiation unit 6b.
  • the combustion chamber floor 90 is also provided with openings 97, as in FIG FIG 6 and FIG 7 you can see.
  • an air flow can flow through the interior of the housing 70 from bottom to top and cool the combustion unit 4b.
  • the air flow can be formed convectively and / or by an overpressure generated under the housing 70, for example in the solid fuel storage 8b.
  • the housing 70 is closed at the front around the combustion unit 4b by a flap 99.
  • This is kept closed in the operation of the radiant heater 2b in addition to a lock by an electrical holding magnet 101, which is supplied with current during the operation of the radiant heater 2b and the flap by the current flow, for example in a coil generated magnetic force holds firmly on the housing 70. Only when the operation is interrupted does the magnetic force of the holding magnet 101 decrease due to the interruption of the current, and the flap 99 can be opened.
  • the burner 86 contains a filler neck 92 which reaches an opening 94 of the delivery unit 10b.
  • the solid fuel conveyed upwards by the conveying unit 10b falls through the opening 94 into the filler neck 92 and from there into the combustion chamber 88 or onto a burner plate 96 at the lower end of the combustion chamber 88.
  • An opening 98 of the conveying device 10b is in register with the opening 94 of the burner housing 84, which in FIG 7 is visible in the removed form of the firing unit 4b.
  • the burner housing 84 contains two air inlets 100 at the bottom in the burner housing 84, which in FIG FIG 7 are shown for better understanding, although they are actually below the cutting plane and would therefore not be visible.
  • the firing unit 4b is provided with an opening 95, which adjoins the radiation unit 6b from below.
  • hot flue gases 102 formed in the combustion chamber 88 can be produced as shown by the dashed arrows in FIG FIG 6 from the combustion chamber 8 through the opening 95 directly into the interior of the radiation unit 6b and from there into the chimney 20b, where they flow through the ash collecting container 22b and leave the chimney 20b through openings 104.
  • the radiation unit 6b is constructed in two shells.
  • an outer wall 56 which is formed for example by a glass tube, an inner turbulator 58b is arranged, which in this case also has the function of flame bundling.
  • the turbulator 58b can also be referred to as a flame bundle tube.
  • the flame bundle tube is a metallic tube, for example a perforated plate with a plurality of holes, through which the flue gas 102 can enter the intermediate space 106 between the wall 56 and the turbulator 58b.
  • a wire mesh made of a wire mesh rolled into a tube is also possible - in the following, no mesh is inserted between the mesh and the mesh.
  • a combination of, for example, a perforated plate which has openings covered with a wire mesh is also possible. It is also possible here, in addition to a tube made of perforated sheet metal, a tube made of a wire mesh, in which the wire mesh can be positioned on the inside or outside of the sheet metal tube. On the outside, it has the advantage that the rapid flow of the flue gas 102 within the flame bundle tube is braked less. Inside, the look of the flame bundle tube is more beautiful.
  • the transparency of the radiation unit 6 through the glass tube 66 and / or openings in the flame bundle tube 68 can be given, wherein the radiation unit 6 can have the glass tube 66 and / or the flame bundle tube 68.
  • the glass tube around the flame bundle tube can be dispensed with, so that the flame bundle tube is the outer tube, in particular the only tube of the radiation unit that carries flue gas. This is possible in particular when the flame bundle tube is made from a wire mesh, since here the escape of flue gas from the wire mesh can be kept low.
  • the fuel store 8 is filled with solid fuel, for example pellets.
  • the fuel is conveyed into the combustion unit 4 with the delivery unit 10 until a desired fill level is reached.
  • the fuel is conveyed upwards by the screw conveyor 38 and falls through the opening 94 and the nozzle at the top 92 into the combustion unit 4b.
  • the combustion unit 4b can be partially filled with solid fuel manually. The fuel is then lit with a fireplace lighter.
  • a control unit 108 controls a blower 110 which blows air into an overpressure chamber 114 via an air supply 112.
  • the overpressure chamber 114 is arranged directly on the combustion unit 4b and has two openings which merge directly into the openings 100 of the combustion unit 4b, so that combustion air is blown into the combustion unit 4b.
  • the combustion air enters an intermediate space 116 between the burner 86 and the burner housing 84, which extends radially around the burner 86, so that there is an overpressure in this intermediate space 116 relative to the surroundings. Combustion air presses out of this intermediate space 116 through primary air openings 118 below and secondary air openings 120 further up in the inner housing of burner 86 into its interior or combustion chamber 88, where it fuses the combustion.
  • the pressure chamber 114 is connected to the conveyor device 10b by a further air outlet 122, so that combustion air flows from the conveyor device 10b through the filler neck 92 into the combustion chamber 88 of the combustion unit 4b.
  • the supporting structure 24b has a foot unit 124 with which it stands on a floor.
  • the foot unit 124 has a foot housing 126 which encloses several electrical units in a rainproof manner, such as a conveyor motor 128 which drives the worm 38 via a gear 130, or the blower 110.
  • the heater 2 has an energy supply unit 132 for supplying the units with electrical energy on the includes a battery, for example. This lies on the floor of the foot housing 126, so that the center of gravity of the radiant heater 2 is as low as possible and is therefore stable.
  • the energy supply unit 132 is connected by cable both to the units for supplying them and to an interface 64 for connection to a power supply system for recharging the energy supply unit 132.
  • the energy content of the energy supply unit 132 is sufficient for wireless operation of the radiant heater 2 over a period of 30 Hours, so that a long self-sufficient operation is possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Direct Air Heating By Heater Or Combustion Gas (AREA)
  • Combustion Of Fluid Fuel (AREA)

Claims (14)

  1. Radiateur rayonnant mobile (2) comprenant une unité de combustion (4) pour brûler du combustible solide, un réservoir de combustible solide (8), une unité d'irradiation transparente (6) pour irradier la chaleur de combustion dans l'environnement, une prise de gaz de fumée (50) qui est orientée vers le haut à travers l'unité d'irradiation (6), une unité de soufflante (110) pour souffler de l'air ambiant dans l'unité de combustion (4) et un dispositif de transport (10) pour transporter du combustible solide jusqu'à l'unité de combustion (4), l'unité d'irradiation (6) présentant un tube en verre à travers lequel des flammes générées par la combustion du combustible solide dans l'unité de combustion (4) sont visibles depuis l'extérieur,
    caractérisé par
    une chambre de surpression (114) disposée directement au niveau de l'unité de combustion (4), qui est raccordée à l'unité de soufflante (110) et qui présente plusieurs sorties d'air, dont l'une est raccordée à l'unité de combustion (4) et une deuxième est raccordée au dispositif de transport (10) pour insuffler de l'air dans le dispositif de transport (10), de telle sorte que l'air puisse s'écouler depuis le dispositif de transport (10) dans l'unité de combustion (4).
  2. Radiateur rayonnant mobile (2) selon la revendication 1,
    caractérisé en ce que
    le réservoir de combustible solide (8b) est situé en dessous de l'unité de combustion (4b) et l'unité de transport (10b) transporte le combustible solide depuis le réservoir de combustible solide (8b) jusqu'au-dessus d'une plaque de combustion (96) de l'unité de combustion (4b), de telle sorte que le combustible solide soit jeté obliquement depuis le haut sur la plaque de combustion (96).
  3. Radiateur rayonnant mobile (2b) selon la revendication 1 ou 2,
    caractérisé en ce que
    l'unité de combustion (4b) présente un brûleur (86) et un boîtier de brûleur (84), le brûleur (86) entourant radialement complètement une chambre de combustion (88) et le boîtier de brûleur (84) entourant radialement complètement le brûleur (86).
  4. Radiateur rayonnant mobile (2b) selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'unité de combustion (4b) est fixée de manière amovible dans un boîtier (70) de telle sorte que l'unité de combustion (4b) puisse être enlevée du boîtier (70) sans outil pour vider les cendres.
  5. Radiateur rayonnant mobile (2b) selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'unité de combustion (4b) est enfichée sur une unité de fixation (76) dans sa position de fonctionnement, et peut être enlevée de celle-ci sans outil par traction.
  6. Radiateur rayonnant mobile (2b) selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'unité de combustion (4b) est disposée dans un boîtier (70) ayant un fond de boîtier (90), de telle sorte qu'un fond (96) de l'unité de combustion (4b) soit complètement espacé vers le bas du fond de boîtier (90) par de l'air.
  7. Radiateur rayonnant mobile (2b) selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'unité de combustion (4b) présente un brûleur (86) et un boîtier de brûleur (84) et une alimentation en air débouche dans un espace intermédiaire (116) entre le brûleur (86) et le boîtier de brûleur (84), de telle sorte que pendant le fonctionnement, de l'air comburant puisse être insufflé dans l'espace intermédiaire (116) .
  8. Radiateur rayonnant mobile (2b) selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'une parmi la pluralité de sorties d'air est raccordée à un espace intermédiaire (116) entre le brûleur (86) et le boîtier de brûleur (84) dans l'unité de combustion (4b).
  9. Radiateur rayonnant mobile (2b) selon la revendication 8,
    caractérisé en ce que
    la liaison (122) entre la chambre de surpression (114) et le dispositif de transport (10b) débouche dans une chambre à vis avec une vis convoyeuse (38) .
  10. Radiateur rayonnant mobile (2b) selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'unité de combustion (4b) est disposée dans un boîtier (70) ayant un fond de boîtier (90) sous l'unité de combustion (4b) et un couvercle de boîtier (91) au-dessus de l'unité de combustion (4b) et au moins le couvercle de boîtier (91) est pourvu d'ouvertures (93) à travers lesquelles de l'air provenant d'un espace de boîtier autour de l'unité de combustion (4b) peut quitter l'espace de boîtier vers le haut.
  11. Radiateur rayonnant mobile (2b) selon la revendication 10,
    caractérisé en ce que
    le boîtier (70) présente une alimentation en air de telle sorte que de l'air de refroidissement puisse s'écouler depuis l'alimentation en air à travers l'espace de boîtier et les ouvertures (93) dans le couvercle de boîtier (91) pour refroidir l'unité de combustion (4b) depuis l'extérieur.
  12. Radiateur rayonnant mobile (2b) selon l'une quelconque des revendications précédentes,
    caractérisé
    par une unité d'embase (124) pour le support mobile sur un sol avec un boîtier d'embase (126) qui entoure un espace de boîtier et dans lequel est disposée une unité d'alimentation en énergie (132) .
  13. Radiateur rayonnant mobile (2b) selon l'une quelconque des revendications précédentes,
    caractérisé
    par une interface électrique (64) pour le raccordement à une alimentation en énergie électrique depuis l'extérieur et une interface électrique supplémentaire (64) pour le montage en série avec un radiateur rayonnant mobile supplémentaire en vue de son alimentation en énergie.
  14. Procédé pour faire fonctionner un radiateur rayonnant (2), en particulier selon l'une quelconque des revendications précédentes, dans lequel du combustible solide est transporté au moyen d'un dispositif de transport (10) depuis un réservoir de combustible solide (8) jusqu'à une unité de combustion (4) du radiateur rayonnant (2), de l'air ambiant est soufflé au moyen d'une unité de soufflante (110) dans l'unité de combustion (4), le combustible solide est brûlé dans l'unité de combustion (4), du gaz de combustion chaud est guidé par une prise de gaz de fumée (50) à travers une unité d'irradiation (6) et dégage à cet endroit de la chaleur de combustion vers l'unité d'irradiation (6) et la chaleur de combustion est délivrée avec l'unité d'irradiation (6) dans l'environnement du radiateur rayonnant (2), l'unité d'irradiation (6) présentant un élément transparent à travers lequel des flammes générées par la combustion dans l'unité de combustion (4) sont visibles depuis l'extérieur,
    caractérisé en ce que
    l'air ambiant est soufflé dans l'unité de combustion (4) par le biais d'une parmi plusieurs sorties d'air d'une chambre de surpression (114) disposée directement au niveau de l'unité de combustion (4), qui est raccordée à l'unité de combustion, et est insufflé dans le dispositif de transport (10) par le biais d'une deuxième parmi la pluralité de sorties d'air qui est raccordée au dispositif de transport (10), de telle sorte que l'air s'écoule dans l'unité de combustion depuis le dispositif de transport (10).
EP16020419.4A 2015-10-30 2016-10-26 Radiateur à infrarouge mobile Active EP3163162B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015118628 2015-10-30
DE102016114527.0A DE102016114527A1 (de) 2016-08-05 2016-08-05 Mobiler Heizstrahler

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Publication Number Publication Date
EP3163162A1 EP3163162A1 (fr) 2017-05-03
EP3163162B1 true EP3163162B1 (fr) 2020-07-15

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Publication number Priority date Publication date Assignee Title
DE102017130475A1 (de) * 2017-12-19 2019-06-19 Lasco Heutechnik Gmbh Mobiler Holzpelletsheizstrahler
AT521755A1 (de) * 2018-08-22 2020-04-15 Gerd Mooshammer Ing Feuerungsvorrichtung für den aussenbereich
AT523073B1 (de) * 2019-10-24 2021-05-15 Smart Pellet Heater Gmbh Vorrichtung zum Verbrennen fester Brennstoffe im Freien
WO2022236098A1 (fr) * 2021-05-06 2022-11-10 Halo Products Group, Llc Appareil de chauffage à granulés
US11655982B2 (en) * 2021-05-06 2023-05-23 Halo Products Group, Llc Pellet heater
DE102022132863A1 (de) 2022-12-09 2024-06-20 Johannes Heller Biomassebetriebener Heizstrahler

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DE102006013863A1 (de) * 2006-03-23 2007-09-27 Rolf Härdtner Brennersystem, insbesondere für mit Biofeststoffen befeuerte Backöfen
DE102010007478A1 (de) * 2010-02-09 2011-08-11 Wörle Umwelttechnik GmbH, 74172 Beheizter Unterstand
US20140238282A1 (en) * 2011-10-11 2014-08-28 Hongfeng Zhu Bonfire oven

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DE202014104897U1 (de) * 2014-10-14 2014-10-28 Lasco Heutechnik Gmbh Mobile Festbrennstofffeuerungsanlage
DE202014008158U1 (de) * 2014-10-15 2014-10-30 Lasco Heutechnik Gmbh Mobilie Festbrennstofffeuerungsanlage
DE202014105041U1 (de) * 2014-10-21 2014-10-28 Lasco Heutechnik Gmbh Mobile Festbrennstofffeuerungsanlage
DE202014105262U1 (de) * 2014-11-03 2014-11-13 Lasco Heutechnik Gmbh Mobile Festbrennstofffeuerungsanlage
DE202015101271U1 (de) * 2015-03-12 2015-04-27 Lasco Heutechnik Gmbh Mobile Feuerungsanlage

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DE102006013863A1 (de) * 2006-03-23 2007-09-27 Rolf Härdtner Brennersystem, insbesondere für mit Biofeststoffen befeuerte Backöfen
DE102010007478A1 (de) * 2010-02-09 2011-08-11 Wörle Umwelttechnik GmbH, 74172 Beheizter Unterstand
US20140238282A1 (en) * 2011-10-11 2014-08-28 Hongfeng Zhu Bonfire oven

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