EP0169689B1 - Infrarotheizungsanlage - Google Patents

Infrarotheizungsanlage Download PDF

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Publication number
EP0169689B1
EP0169689B1 EP85304968A EP85304968A EP0169689B1 EP 0169689 B1 EP0169689 B1 EP 0169689B1 EP 85304968 A EP85304968 A EP 85304968A EP 85304968 A EP85304968 A EP 85304968A EP 0169689 B1 EP0169689 B1 EP 0169689B1
Authority
EP
European Patent Office
Prior art keywords
heating
pipe
heating pipe
combustion
burner head
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.)
Expired
Application number
EP85304968A
Other languages
English (en)
French (fr)
Other versions
EP0169689A2 (de
EP0169689A3 (en
Inventor
John F. Arnold
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.)
RADIANT SYSTEMS TECHNOLOGY Ltd
Original Assignee
RADIANT SYSTEMS TECHNOLOGY Ltd
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 RADIANT SYSTEMS TECHNOLOGY Ltd filed Critical RADIANT SYSTEMS TECHNOLOGY Ltd
Publication of EP0169689A2 publication Critical patent/EP0169689A2/de
Publication of EP0169689A3 publication Critical patent/EP0169689A3/en
Application granted granted Critical
Publication of EP0169689B1 publication Critical patent/EP0169689B1/de
Expired legal-status Critical Current

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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
    • 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

  • This invention relates to an infra-red heating system comprising a heating pipe and a plurality of combustion devices spaced apart along the heating pipe for supplying hot gases into the interior of the pipe to cause the pipe to emit infra-red radiation.
  • each combustion device comprises a burner head which is disposed in the flow of gases along the heating pipe. This has a disadvantageous effect on the flow of gases along the pipe.
  • United Kingdom patent publication number 723,437 discloses an infra-red heater comprising a burner unit enclosed in a burner tube. Gas is provided as fuel to the burner unit and a pilot device placed in the tube external to the burner unit acts to ignite the fuel.
  • An object of the present invention is to provide an infra-red heating system in which none of the structure of the combustion devices interferes with the flow of hot gases along the heating pipe.
  • United States patent number 3416512 discloses a heating system in which a pair of heat-emitting conduits are disposed in axial alignment with each other and spaced axially from each other, burner units are provided spaced along said conduits for providing flames interiorly of the conduits, and means common to both conduits is provided adjacent the space between the conduits for simultaneously exhausting the products of combustion from both conduits in countercurrent relationship to the flow of heat in the first- named conduits and in heat-transferring relationship to the latter.
  • an infra-red heating system comprising a heating pipe, a plurality of combustion devices spaced apart along the heating pipe and connected in parallel therewith by respective connecting pipes, so as to be able to supply hot gases to the interior of said heating pipe, characterised in that each combustion device comprises a burner head of circular cross-section, having a plurality of burner ports, a mixing chamber upstream of said plurality of burner ports for mixing air and gas for combustion, and an igniter downstream of the burner head for igniting the air and gas combustion mixture after it has passed through said burner parts, the burner head of each combustion device extending into the connecting pipe connecting the combustion device with said heating pipe and defining with the connecting pipe an annular gap to enable carrier air into the connecting pipe to cool the connecting pipe, an inlet to said annular gap being defined between respective radial surfaces connected to the burner head and connecting pipe, said inlet being adjustable by movement of the burner head axially relative to the connecting pipe.
  • the system may include reflector means arranged to be disposed above the heating pipe in use for reflecting heat therefrom downwards, said connecting pipes extending through the reflector means and the reflector means extending between the heating pipe and the combustion devices.
  • an infra-red heating system 1 comprising a heating pipe 2 and a plurality of combustion devices 3 spaced apart along the heating pipe and connected in parallel thereto by respective connecting pipes 4 for supplying hot gases to the interior of the heating pipe 2.
  • One end 5 of the heating pipe is closed and the other end 6 is connected to a suction means 7, such as a fan or pump, which causes gas flow along the heating pipe.
  • the heating pipe emits infra-red radiant heat from its surface and a reflector means comprising an elongate reflecting element 8 disposed above the heating pipe and along its length reflects heat emitted from the heating pipe downwards.
  • the connecting pipes 4 extend through the reflecting element 8, the latter extending between the heating pipe 2 and the combustion devices 3.
  • the system comprises a single heating pipe and that pipe defines straight- line flow path
  • the heating pipe may define a U-shape flow path, in which case the pipe will comprise two parallel runs each of which is connected to the other at one end only.
  • the heating system may comprise a plurality of heating pipes 2, each having a plurality of combustion devices 3 spaced therealong, the heating pipes being connected in parallel to a common suction means for causing gas flow along the heating pipes.
  • Combustion device 3 comprises a housing 9 which is mounted to one end of the connecting pipe 4 which connects the device 3 to the heating pipe 2.
  • the combustion device comprises a burner head 10 which extends into the connecting pipe 4 and which defines therewith an annular gap 11 for introducing carrier air into the system.
  • the burner head is circular in cross-section and is provided with a plurality of burner ports 12.
  • Within the burner head 10 and a mixing block 13 mounted thereon is defined a mixing chamber 14 for mixing air and gas prior to combustion.
  • the mixing chamber 14 is provided with an air inlet orifice 15 for admitting air from the housing 9 into the mixing chamber 14 and a gas inlet orifice 16 for admitting gas to the chamber 14 from a gas supply line 17 which extends through the housing and includes within the housing a zero governor 18 and a solenoid valve 19 for use in controlling gas flow to the chamber 14.
  • the housing itself is provided with an air inlet 20 and the air admitted into the interior of the housing therethrough forms both the air for combustion and the carrier air.
  • the latter is supplied to the annular gap 11 through an inlet 21 to the annular gap which is defined between respective radial surfaces 22, 23 connected to the burner head and connecting pipe.
  • These radial surfaces are provided by a radial flange 24 of the burner head and a facing portion of the housing connected to the end of the connecting pipe.
  • the size of inlet 21 is adjustable by movement of the burner head relative to the connecting pipe to either reduce or increase the spacing apart of the surfaces 22, 23.
  • the burner head is mounted in the connecting pipe so as to be movable relative thereto to a selected position.
  • inlet 21 will be determined by the rating of the combustion device and would be preset accordingly during manufacture. Provision for adjusting the size of the inlet during manufacture therefore facilitates manufacture of combustion devices of different ratings.
  • An igniter 25 is mounted downstream of the burner head 10 for igniting the gas/air combustion mixture flowing through the burner ports.
  • the igniter is mounted on the wall of the connecting pipe 4 and extends therethrough.
  • the connecting pipe 4 acts as a 'flame tube' for the combustion device and the flame from the burner head is schematically illustrated at 26.
  • a controller 27 mounted within the housing controls operation of the igniter 25 and solenoid valve 19 in a manner which will be obvious to the man skilled in the art and which needs no further explanation here.
  • a particular advantage of the illustrated combustion device is that the carrier air which is drawn into the connecting pipe 4 around the burner head 10 acts to cool the connecting pipe 4 above the reflector element 8 to avoid loss of radiant heat. If desired the connecting pipe can also be insulated above the reflector element.
  • the structure of the combustion devices including the burner heads thereof is disposed remotely from the interior of the heating pipe and does not interfere with gas flow therealong. Furthermore it will be noted that by connecting the combustion devices in parallel to the heating pipe rather than in series therewith as in the systems disclosed in the patent specifications referred to above, a simpler construction is achieved.

Landscapes

  • 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)
  • Gas Burners (AREA)

Claims (7)

1. Infrarotheizungsanlage, enthaltend ein Heizrohr (2), mehrere Verbrennungsvorrichtungen (3), die im Abstand längs des Heizrohres angeordnet und parallel damit durch entsprechende Verbindungsrohre (4) verbunden sind, um in der Lage zu sein, Heißgase in das Innere des Heizrohres (2) abzugeben, dadurch gekennzeichnet, daß jede Verbrennungsvorrichtung (3) einen Brennerkopf (10) von kreisförmigem Querschnitt aufweist, der mehrere Brennerkanäle (12), eine Mischkammer (14) stromaufwärts der genannten Vielzahl von Brennerkanälen (12) zum Mischen von Luft und Gas zur Verbrennung aufweist, und daß ein Zünder (25) stromabwärts des Brennerkopfes (10) zum Zünden des Luft- und Gasbrenngemischs nach dem Passieren der Brennerkanäle (12) angeordnet ist, wobei der Brennerkopf (10) einer jeden Verbrennungsvorrichtung (3) sich in das Verbindungsrohr (4) erstreckt, das die Verbrennungsvorrichtung (3) mit dem Heizrohr (2) verbindet, und mit dem Verbindungsrohr (4) einen ringförmigen Spalt ausbildet, damit Trägerluft in das Verbindungsrohr (4) das Verbindungsrohr (4) kühlen kann, wobei ein Einlaß (21) in den genannten ringförmigen Spalt zwischen entsprechenden Radialflächen (22, 23, 24) definiert ist, die mit dem Brennerkopf (10) und dem Verbindungsrohr (4) verbunden sind, welcher Einlaß (21) durch Bewegung des Brennerkopfes (10) in axialer Richtung relativ zum Verbindungsrohr (4) einstellbar ist.
2. Heizanlage nach Anspruch 1, bei der die Verbrennungsvorrichtungen (3) oberhalb des Heizrohrs angeordnet sind und eine Reflektoreinrichtung (8) zwischen dem Heizrohr (2) und den Verbrennungsvorrichtungen angeordnet ist, um Wärme nach unten zu reflektieren, welche Verbindungsrohre (4) sich durch die Reflektoreinrichtung hindurcherstrecken.
3. Heizanlage nach Anspruch 1 oder 2, enthaltend eine Ansaugeinrichtung (7), die mit dem Heizrohr verbunden ist, um die Heißgase darin zu veranlassen, durch das Heizrohr zu strömen.
4. Heizanlage nach Anspruch 3, bei der das Heizrohr (2) einen geradlinigen Strömungsweg definiert.
5. Heizanlage nach Anspruch 3, bei der das Heizrohr (2) einen U-förmigen Strömungsweg definiert.
6. Heizanlage nach Anspruch 1, enthaltend mehrere Heizrohre (2), die jeweils mehrere Verbrennungsvorrichtungen (3) in Längsabständen haben, welche Heizrohre (2) parallel an eine gemeinsame Ansaugeinrichtung zum Hervorrufen einer Gasströmung durch die Rohre angeschlossen sind.
7. Heizanlage nach einem der vorhergehenden Ansprüche, bei der jedes der Verbindungsrohre (4) ein Loch darin zwischen dem Brennerkopf (10) der zugehörigen Heizvorrichtung, die sich darin erstreckt, und dem Heizrohr aufweist, und wobei der Zünder (25) einer jeden zugeordneten Verbrennungsvorrichtung (10) sich durch das Loch und in das zugehörige Verbindungsrohr (4) erstreckt.
EP85304968A 1984-07-23 1985-07-11 Infrarotheizungsanlage Expired EP0169689B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8418727 1984-07-23
GB08418727A GB2162301B (en) 1984-07-23 1984-07-23 Infra-red heating system

Publications (3)

Publication Number Publication Date
EP0169689A2 EP0169689A2 (de) 1986-01-29
EP0169689A3 EP0169689A3 (en) 1986-07-16
EP0169689B1 true EP0169689B1 (de) 1989-05-17

Family

ID=10564308

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85304968A Expired EP0169689B1 (de) 1984-07-23 1985-07-11 Infrarotheizungsanlage

Country Status (3)

Country Link
EP (1) EP0169689B1 (de)
DE (1) DE3570279D1 (de)
GB (1) GB2162301B (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2280257B (en) * 1993-07-20 1996-09-25 Ambi Rad Ltd Space heating appliances
US5842854A (en) * 1996-04-18 1998-12-01 Willms; Eric Infrared heating system and metering element
DE69728746T2 (de) * 1997-02-04 2005-04-28 May, Michael John, Bognor Regis Heizgerät mit Strahlungsrohr
GB2394019A (en) * 2002-09-20 2004-04-14 Alan Robert Newton Wheel nut locking device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB723437A (en) * 1952-02-12 1955-02-09 Frank Raymond Faber Ramsay Gas or liquid fuel fired heater

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3416512A (en) * 1967-01-09 1968-12-17 Mintz Alvin Infrared heating system
GB1315685A (en) * 1970-11-13 1973-05-02 Lord Ltd David R Heating apparatus
JPS57155004A (en) * 1981-03-20 1982-09-25 Sanree Reinetsu Kk Fuel hole in internal combustion burner of small diameter combustion cylinder
GB2102555B (en) * 1981-07-17 1985-03-20 Phoenix Burners A heating system
JPS58200919A (ja) * 1982-05-18 1983-11-22 Matsushita Electric Ind Co Ltd 燃焼器

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB723437A (en) * 1952-02-12 1955-02-09 Frank Raymond Faber Ramsay Gas or liquid fuel fired heater

Also Published As

Publication number Publication date
GB2162301A (en) 1986-01-29
GB8418727D0 (en) 1984-08-30
EP0169689A2 (de) 1986-01-29
GB2162301B (en) 1988-02-10
DE3570279D1 (en) 1989-06-22
EP0169689A3 (en) 1986-07-16

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