EP0400845B1 - Improvements relating to gas burners - Google Patents

Improvements relating to gas burners Download PDF

Info

Publication number
EP0400845B1
EP0400845B1 EP90305386A EP90305386A EP0400845B1 EP 0400845 B1 EP0400845 B1 EP 0400845B1 EP 90305386 A EP90305386 A EP 90305386A EP 90305386 A EP90305386 A EP 90305386A EP 0400845 B1 EP0400845 B1 EP 0400845B1
Authority
EP
European Patent Office
Prior art keywords
combustion chamber
solid fuel
gas
burner
gas burner
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 - Lifetime
Application number
EP90305386A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0400845A1 (en
Inventor
Kulwant Mandir
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.)
Valor Ltd
Original Assignee
Valor 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 Valor Ltd filed Critical Valor Ltd
Publication of EP0400845A1 publication Critical patent/EP0400845A1/en
Application granted granted Critical
Publication of EP0400845B1 publication Critical patent/EP0400845B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/002—Stoves
    • F24C3/006—Stoves simulating flames
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
    • F23D14/08—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with axial outlets at the burner head

Definitions

  • the present invention relates to a gas burner arrangement for use in a solid fuel effect gas fire.
  • one or more aerated gas burners provide the main heat and glow and these or a number of under aerated or neat gas burners provide the wispy flames which add visual realism to the fire but little heat.
  • This type of known arrangement requires selective control of the various burners to achieve optimum performance in respect of heat output and visual effect, otherwise poor combustion and sooting could occur.
  • known fires are inherently prone to sooting and poor combustion due to the impingement of the flames on the simulated solid fuel elements beneath which the burners are conventionally located.
  • these known fires are used with a heat exchanger and the products of combustion have to be vented out via a chimney. If purely a decorative fire the products of combustion are immediately vented out via a chimney.
  • French Patent Specification No. 2343972 describes a gas burner arrangement wherein a gas burner is located within a combustion chamber, the top of the combustion chamber being closed by a porous ceramic simulated solid fuel element bed.
  • the gas burner burns primary aerated gas and an inlet into the combustion chamber enables secondary air to be drawn into the combustion chamber to enhance combustion.
  • the gas burner is offset from the simulated solid fuel element bed and arranged so that, in use, the flames are directed substantially horizontally across the combustion chamber under the simulated solid fuel element bed, the flames thus heating the walls of the combustion chamber as well as the simulated solid fuel element bed.
  • the aim of the present invention is to provide a simple but high efficiency gas burner arrangement which can provide a visual effect with good combustion, allowing use in unvented and vented type appliances.
  • a gas burner arrangement for use in a solid fuel effect gas fire, the burner arrangement comprising a gas burner located in a combustion chamber underneath a simulated solid fuel element construction, which forms an upper wall of the combustion chamber, the gas burner having outlet ports for gas which has been aerated with a primary quantity of air, the combustion chamber having inlets through which a secondary quantity of air can be drawn into the combustion chamber to aid combustion of the primary aerated gas/air mix within the combustion chamber, characterised in that the inlets are located below the level of the said outlet ports and in that the gas burner is located directly underneath the simulated solid fuel element construction which is comprised of simulated solid fuel elements between which apertures in the said construction allow the combusting gases and flames to pass from the combustion chamber to mix with the ambient air, when the burner arrangement is in use, to enable complete combustion to occur outside the combustion chamber above the said simulated solid fuel elements construction.
  • the burner used is a standard primary aerated strip type gas burner adjusted to give yellow tipped flames i.e. the quantity of primary air is insufficient for complete combustion to occur.
  • the combustion chamber is preferably a rectangular open topped box configuration with the burner set in the base of the box, a simulated solid fuel effect construction made, for example, from a ceramic material, closing the top of the combustion chamber.
  • Inlets for secondary air are preferably located in the base region of the combustion chamber below the level of the outlet ports of the burner, and are designed to provide insufficient air for complete combustion to occur, but sufficient air to cause the gases to burn in the combustion chamber with flames which are hot enough to heat the simulated solid fuel effect construction to a temperature at which sooting, i.e.
  • the apertures in the solid fuel effect construction are of a size which results in the combustion chamber filling with burning gases, reverse air flow at the edges of the apertures being minimised.
  • the combusting gases pass through the apertures in the simulated solid fuel effect construction, they mix with the ambient air and the combustion is completed with a yellow flame.
  • a chimney therefore may or may not be provided or even required. Further, a heat exchanger may be provided of desired.
  • a pilot or ignition system may be provided in or adjacent to the combustion chamber.
  • a simplex burner allows the gas feed rate to be turned down to very low levels, a duplex type burner or two or more burners may of course be alternatively provided.
  • the burner arrangement of the present invention can thus be used to provide a visual effect without the paramount need for a chimney and thus the present invention may be used to advantage in, for example, a portable cabinet heater fed with bottled gas.
  • the preferred embodiment of the present invention illustrated in the accompanying drawings comprises a burner arrangement 1 having a strip-like burner 3 which is arranged to burn gas aerated with a primary quantity of air, in a rectangular box-like combustion chamber 5.
  • the strip-like burner 3 is an elongate ribbon-type burner with an arrangement of outlet ports 3a in a generally horizontal upper surface 3b of the burner.
  • the combustion chamber 5 is made of metal and has an open top which is closed over by a simulated solid fuel effect construction 7 which is made of a ceramic material and which has a number of apertures 13 between the simulated fuel elements 15.
  • the combustion chamber can be completely made of a ceramic material.
  • the burner 3 is provided in the base 9 of the combustion chamber 5, directly beneath the simulated solid fuel effect construction 7. Alternatively a number of burners can be substituted. Also located in the base region 9 of the combustion chamber 5 below the level of the outlet ports 3a, are a number of elongate inlet apertures 11 for allowing a quantity of secondary air to be drawn into the combustion chamber 5.
  • the burner 3 is designed so that the gas it burns is insufficiently aerated by the primary air to produce complete combustion i.e. the quantity of primary air is only sufficient to produce yellow tipped flames when the fuel effect 7 is not in position.
  • a quantity of secondary air is thus drawn into the combustion chamber 5 via the inlet apertures 11, though this is insufficient to complete combustion but sufficient to cause the gases to burn in the combustion chamber 5 with flames which are hot enough to heat the simulated solid fuel effect construction 7 to a temperature at which sooting by the flames impinging on the simulated solid fuel effect construction 7, is minimised.
  • the combusting gases pass through the apertures 13 in the simulated fuel effect construction 7 the apertures 13 being of a size such that the combustion chamber 5 is filled with burning gases and reverse air flow around the edges of the apertures 13 is minimised.
  • the combusting gases pass through the apertures 13 they mix with the ambient air, combustion being thus completed with a yellow flame.
  • the combustion figures are good. A chimney or flue need not therefore be necessary.
  • the simulated solid fuel effect construction 7 is thus heated by the flames in the combustion chamber and thus acts as a radiant heater, with the hot gases passing through the apertures 13 causing the edges of the aperture 13 to become heated sufficiently to glow red as per a real fire, the yellow flames produced by complete combustion in the ambient atmosphere adding to the visual realism of the fire as well as to the heat output.
  • the fuel effect 7 can be constructed of multiple levels and segments from ceramic type materials or a combination of metal and ceramic or all metal configurations. These can be designed so as to modify the combustion characteristics to thus induce variations in the flame colour and pattern, in conjunction with variations to the combustion chamber 5 which may be constructed of materials other than metal.
  • an igniter 17 in the form of a pilot or ignition system can be located in the combustion chamber 5.
  • the present invention thus provides a burner arrangement which provides a visual effect without the need for the previously essential chimney or flue.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
  • Combustion Of Fluid Fuel (AREA)
EP90305386A 1989-05-27 1990-05-18 Improvements relating to gas burners Expired - Lifetime EP0400845B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB898912304A GB8912304D0 (en) 1989-05-27 1989-05-27 Improvements relating to gas burners
GB8912304 1989-05-27

Publications (2)

Publication Number Publication Date
EP0400845A1 EP0400845A1 (en) 1990-12-05
EP0400845B1 true EP0400845B1 (en) 1994-12-07

Family

ID=10657527

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90305386A Expired - Lifetime EP0400845B1 (en) 1989-05-27 1990-05-18 Improvements relating to gas burners

Country Status (16)

Country Link
EP (1) EP0400845B1 (xx)
KR (1) KR100208308B1 (xx)
CN (1) CN1020654C (xx)
AR (1) AR243668A1 (xx)
AT (1) ATE115267T1 (xx)
CA (1) CA2017408A1 (xx)
CZ (1) CZ280179B6 (xx)
DE (1) DE69014715T2 (xx)
DK (1) DK0400845T3 (xx)
ES (1) ES2065488T3 (xx)
GB (1) GB8912304D0 (xx)
HR (1) HRP921401A2 (xx)
IE (1) IE66573B1 (xx)
PL (1) PL161907B1 (xx)
RU (1) RU2039319C1 (xx)
ZA (1) ZA903916B (xx)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110986148B (zh) * 2019-05-15 2024-06-21 宁波丽辰电器有限公司 一种燃气壁炉燃烧装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7702318A (nl) * 1976-03-09 1977-09-13 Foseco Int Gashaard.
GB2040440A (en) * 1979-01-27 1980-08-28 Valor Heating Ltd Gas Fire Elements
GB2136949A (en) * 1983-03-07 1984-09-26 Douglas Allison Mitchell Solid fuel effect gas fires
GB8333399D0 (en) * 1983-12-15 1984-01-25 Baxi Partnership Ltd Gas-fired appliances
GB2179438A (en) * 1985-07-17 1987-03-04 Flamelog And Coal Fires Limite Solid-fuel simulating gas fire

Also Published As

Publication number Publication date
CN1049223A (zh) 1991-02-13
CA2017408A1 (en) 1990-11-27
ZA903916B (en) 1991-03-27
DK0400845T3 (da) 1995-02-06
ES2065488T3 (es) 1995-02-16
DE69014715D1 (de) 1995-01-19
EP0400845A1 (en) 1990-12-05
IE901824L (en) 1990-11-27
AR243668A1 (es) 1993-08-31
PL161907B1 (pl) 1993-08-31
CS9002492A2 (en) 1991-10-15
KR100208308B1 (ko) 1999-07-15
CZ280179B6 (cs) 1995-11-15
GB8912304D0 (en) 1989-07-12
ATE115267T1 (de) 1994-12-15
KR900018597A (ko) 1990-12-22
CN1020654C (zh) 1993-05-12
HRP921401A2 (en) 1995-10-31
DE69014715T2 (de) 1995-05-04
RU2039319C1 (ru) 1995-07-09
IE66573B1 (en) 1996-01-24

Similar Documents

Publication Publication Date Title
US5320520A (en) Gas burner assembly for simulating a natural log fire
US5069200A (en) Gas-fired artificial log assembly
GB2152655A (en) Gas fire with coal effect
US4883043A (en) Gas-fired artificial log fireplace assembly
US4110063A (en) Gas fire
CA2267869A1 (en) Electric cooking oven with infrared gas broiler
GB2222673A (en) Solid fuel effect gas fire
US6036474A (en) Gas burner for fireplace
US5931154A (en) Gas fireplace burner plate
EP0400845B1 (en) Improvements relating to gas burners
GB2136949A (en) Solid fuel effect gas fires
US5769623A (en) Oil fired burner
US6026805A (en) Heating apparatus
EP0386957A1 (en) Gas fire
GB2207499A (en) Simulated solid fuel gas fire
CA2255305C (en) Gas burner for fireplace
GB2253475A (en) Gas fire
KR920003238Y1 (ko) 장작형 난방기
GB2053443A (en) Heating air in incandescent gas fires
EP0145298A2 (en) Space heating appliances
GB2074719A (en) Radiants for gas fires
GB2183329A (en) Simulated solid fuel gas fire
GB2181228A (en) Simulated solid fuel gas fires
GB2196422A (en) Simulated solid fuel gas fire
US20030008253A1 (en) Ceramic gas fired hearth burner

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19910425

17Q First examination report despatched

Effective date: 19910723

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19941207

Ref country code: CH

Effective date: 19941207

Ref country code: NL

Effective date: 19941207

Ref country code: BE

Effective date: 19941207

Ref country code: LI

Effective date: 19941207

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19941207

REF Corresponds to:

Ref document number: 115267

Country of ref document: AT

Date of ref document: 19941215

Kind code of ref document: T

ITF It: translation for a ep patent filed
REF Corresponds to:

Ref document number: 69014715

Country of ref document: DE

Date of ref document: 19950119

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2065488

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

ET Fr: translation filed
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19950531

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DK

Payment date: 19990512

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19990525

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20000510

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000518

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010301

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020131

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20020508

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20020522

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030519

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030519

EUG Se: european patent has lapsed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20030519

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050518

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20070516

Year of fee payment: 18

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20080518

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080518