EP0136928A1 - Burner for premixed gas and boiler equipped with such a burner - Google Patents
Burner for premixed gas and boiler equipped with such a burner Download PDFInfo
- Publication number
- EP0136928A1 EP0136928A1 EP84401550A EP84401550A EP0136928A1 EP 0136928 A1 EP0136928 A1 EP 0136928A1 EP 84401550 A EP84401550 A EP 84401550A EP 84401550 A EP84401550 A EP 84401550A EP 0136928 A1 EP0136928 A1 EP 0136928A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- burner
- gas
- main
- ignition
- fan
- 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.)
- Granted
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Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23Q—IGNITION; EXTINGUISHING-DEVICES
- F23Q9/00—Pilot flame igniters
- F23Q9/02—Pilot flame igniters without interlock with main fuel supply
- F23Q9/04—Pilot flame igniters without interlock with main fuel supply for upright burners, e.g. gas-cooker burners
- F23Q9/045—Structurally associated with a main-burner
Definitions
- the present invention relates to a gas premix burner for a boiler, in particular for instantaneous preparation of domestic hot water, as well as a boiler equipped with such a burner with upstream fan.
- the main burner is generally ignited either by an auxiliary so-called ignition burner, or directly by electrical means.
- the ignition burners are of different types, for example of the permanent type called pilot light, semi-permanent or semi-permanent alternating with limitation on the ignition time.
- the ignition burner When the ignition burner is of the semi-permanent alternating type, or when the ignition is carried out by electrical means, it is necessary for safety reasons to pre-sweep the combustion circuit before each ignition of the main burner.
- the pre-purge time for example 15 seconds, does not allow an immediate response to the user's demand for domestic water and the latter's needs can therefore only be satisfied with a certain delay.
- the invention aims in particular to remedy the drawbacks of the various devices set out, in a gas premix burner for a boiler for instantaneous preparation of domestic hot water, by using a permanent operation ignition burner provided with a supply of oxidant which varies according whether the fan is on or off.
- the invention relates to a gas premix burner for a sealed hearth boiler intended for the instantaneous preparation of domestic hot water, this burner comprising, in the hearth, a main burner with gas premix, supplied with gas by a main pipe. gas under the control of a solenoid valve block and pressurized air by a fan, and an ignition burner supplied with gas by a bypass of the main line.
- the ignition burner is supplied with oxidant by a bypass of a sealed connection pipe of the fan with the main burner.
- the ignition burner behaves like an atmospheric pilot light when the main burner stops and as a total air burner during the operation of the main burner.
- the oxidizer bypass can advantageously be constituted by a tube of relatively large diameter, by example of at least 18 mm, to allow a sufficient supply of atmospheric air when the main burner stops, tube whose mouth is arranged as a dynamic and adjustable outlet in the tight connection piping of the fan with the burner main.
- the ignition burner 10 illustrated in FIG. 1 has a gas injector 11 housed at the inlet of a venturi tube 12 permitting the suction of the main atmospheric air of combustion API; combustion is completed by means of atmospheric secondary air AS1 taken from the hearth.
- FIG. 2 shows an ignition burner 13 with total air; the gas injector 14 opens into an air inlet tube 15, this air being pressurized by means of a fan V, the flow rate of which is adjusted so as to produce in a mixing tube 16 a mixture with a slight excess of air.
- the atmospheric pilot light 10 of FIG. 1 cannot function satisfactorily in a gas-fired air boiler and gas premix when the main burner is operating, while the total air ignition burner 13 of FIG. 2 is not not economically adaptable to such a boiler.
- the gas boiler 20 of FIG. 3 comprises in a hearth sealed 21 a main burner 22, an ignition burner 23, a smoke-water exchanger 24 and a pipe 25 for discharging the fumes; the exchanger 24 is constituted for example by a tube wound in a spiral and intended for the preparation of sanitary water; it can also be arranged to allow heating of central heating water.
- the main burner 22 is supplied with gas by a main gas pipe 26, under the control of a solenoid valve 27, and with pressurized air by a fan 28.
- the latter is connected to the burner 22 by a connecting pipe. watertight 29.
- the gas pipe 26 opens either at 26a in a pipe or a suction outlet 30 of the fan (fig. 3), or at 26b in the pipe 29 (fig. 4); the premix is carried out in the first case in the fan itself and in the second case downstream of it.
- the ignition burner 23 according to the invention has a gas injector 31 disposed at the inlet of a venturi tube 32 and supplied with gas by a bypass 33 of the main gas pipe 26 under the control of the solenoid valve block 27.
- the burner 23 is supplied with a gas premix (fig. 3) or with air (fig. 4) by a branch 34 of the sealed connection pipe 29; in the embodiment of Figure 4, the bypass 34 is located upstream of point 26b.
- the branch 34 is linked to the venturi tube 32.
- the oxidizer derivation 34 is arranged in lateral engagement or in Pitot tube in the piping 29 so as to benefit in the latter case of a dynamic effect and it has for example a tubular end piece 35 capable of rotation about its axis 36 and provided with an orifice 37 cut into a whistle; in this way, the rotation of the nozzle 35 about its axis modifies, thanks to the aforementioned dynamic effect, the flow of oxidant towards the ignition burner 23 and makes it possible to easily adjust in situ the flow of oxidant and the coupling. of flame.
- Figures 5 and 6 show the configuration of the ignition burner flame at stop and respectively during operation of the main burner.
- the relatively high flame F5 is obtained by means of the supply of primary air AP5 passing through the bypass 34 and of secondary air AS5 coming from the piping 30 via the fan, the main burner and the hearth.
- the reduced height flame F6 is obtained by means of the supply of total air AT6 or of air-gas premix AG6; the reduction in flame height due to the overpressure of the air or the premix does not alter the temperature of the ignition flame.
- the gas premix burner described operates in the following manner: when the solenoid valve block 27 authorizes it, the ignition burner 23 is permanently lit and, when the main burner 22 is stopped, receives a low flow of gas from the bypass 33; the burner 23 receives on the other hand the necessary primary air flow AP5 coming from the piping or the inlet 30 inlet of the fan while at rest and passing by the bypass tube 34 then by the venturi tube 32. L the secondary air AS5 is supplied by the pipe 30, the fan 28, the pipe 29, the main burner 22 and the hearth 21.
- the orifice 37 of the bypass tube 34 dynamically draws part of the air with a flow rate and a pressure determined by the rotational position of the tubular end or sleeve 35 and by its relatively large diameter, for example greater than 18 mm . It goes without saying that one could provide another means of adjustment or adjustable concealment of the section of the branch 34.
- the boiler object of the invention can be of the mixed type, that is to say have several exchangers intended respectively for preparing domestic hot water and for heating central heating water.
Abstract
Description
La présente invention concerne un brûleur à prémélange gazeux pour chaudière notamment à préparation instantanée d'eau chaude sanitaire, ainsi qu'une chaudière équipée d'un tel brûleur à ventilateur amont.The present invention relates to a gas premix burner for a boiler, in particular for instantaneous preparation of domestic hot water, as well as a boiler equipped with such a burner with upstream fan.
Dans une chaudière à gaz, le brûleur principal est généralement allumé soit par un brûleur auxiliaire dit d'allumage, soit directement par un moyen électrique. Les brûleurs d'allumage sont de différents types, par exemple de type permanent dit veilleuse, semi-permanent ou semi-permanent alterné avec limitation au temps d'allumage.In a gas boiler, the main burner is generally ignited either by an auxiliary so-called ignition burner, or directly by electrical means. The ignition burners are of different types, for example of the permanent type called pilot light, semi-permanent or semi-permanent alternating with limitation on the ignition time.
Lorsque le brûleur d'allumage est du type semi-permanent alterné, ou lorsque l'allumage est effectué par un moyen électrique, il est nécessaire pour des raisons de sécurité de prébalayer le circuit de combustion avant chaque allumage du brûleur principal. Dans le cas d'une chaudière à préparation instantanée d'eau chaude sanitaire, le temps de prébalayage, par exemple de 15 secondes, ne permet pas de répondre immédiatement à la demande de l'utilisateur en eau sanitaire et les besoins de celui-ci ne peuvent donc être satisfaits qu'avec un certain retard.When the ignition burner is of the semi-permanent alternating type, or when the ignition is carried out by electrical means, it is necessary for safety reasons to pre-sweep the combustion circuit before each ignition of the main burner. In the case of a boiler with instantaneous preparation of domestic hot water, the pre-purge time, for example 15 seconds, does not allow an immediate response to the user's demand for domestic water and the latter's needs can therefore only be satisfied with a certain delay.
Il serait possible de balayer en permanence le foyer de la chaudière à gaz en recourant à un flux d'air fourni par un ventilateur fonctionnant même à l'arrêt du brûleur, mais on comprend aisément qu'un tel système pénaliserait le rendement d'exploitation de la chaudière du fait de pertes thermiques prohibitives dues au balayage permanent.It would be possible to permanently sweep the hearth of the gas boiler by using an air flow supplied by a fan operating even when the burner is stopped, but it is easily understood that such a system would penalize the operating efficiency of the boiler due to prohibitive heat losses due to permanent sweeping.
Il est d'autre part connu d'utiliser dans des chaudières à gaz des brûleurs atmosphériques comprenant un brûleur principal et un petit brûleur d'allumage à fonctionnement permanent dit "veilleuse". Dans un tel brûleur d'allumage, le gaz injecté induit au moyen d'un venturi une partie de l'air de combustion dite "air primaire", tandis que l'autre partie de l'air de combustion dite "air secondaire" est prélevée dans le foyer. Présentant une pression de flamme très faible, une telle veilleuse ne peut pas fonctionner dans une chaudière à foyer étanche munie d'un brûleur principal à prémélange, du fait que la pression du foyer est trop grande et que le taux de C02 est trop élevé.It is also known to use in gas boilers atmospheric burners comprising a main burner and a small ignition burner with permanent operation called "pilot light". In such an ignition burner, the injected gas induces by means of a venturi part of the combustion air called "primary air", while the other part of the combustion air called "secondary air" is taken from the household. Presenting a very low flame pressure, such a pilot light cannot operate in a sealed hearth boiler provided with a main premix burner, because the hearth pressure is too great and the CO 2 content is too high.
Il est possible d'utiliser dans un foyer pressurisé un brûleur d'allumage à air total permettant le fonctionnement en atmosphère confinée ; l'apport de l'air comburant s'effectue alors dans un rapport supérieur au rapport stoechiométrique grâce à un ventilateur surpresseur ; celui-ci permet ainsi de doser le débit d'air nécessaire à la combustion. Mais ce système a le défaut de requérir un débit d'air permanent pénalisant là encore le rendement d'exploitation.It is possible to use in a pressurized fireplace a total air ignition burner allowing operation in a confined atmosphere; the combustion air is then supplied in a ratio greater than the stoichiometric ratio thanks to a supercharger; this thus makes it possible to dose the air flow rate necessary for combustion. However, this system has the defect of requiring a permanent air flow rate which again penalizes operating efficiency.
L'invention vise notamment à remédier aux inconvénients des divers dispositifs exposés, dans un brûleur à prémélange gazeux pour chaudière à préparation instantanée d'eau chaude sanitaire, en utilisant un brûleur d'allumage à fonctionnement permanent doté d'une alimentation en comburant variable selon que le ventilateur est en marche ou à l'arrêt.The invention aims in particular to remedy the drawbacks of the various devices set out, in a gas premix burner for a boiler for instantaneous preparation of domestic hot water, by using a permanent operation ignition burner provided with a supply of oxidant which varies according whether the fan is on or off.
L'invention concerne à cet effet un brûleur à prémélange gazeux pour chaudière à foyer étanche destinée à la préparation instantanée d'eau chaude sanitaire, ce brûleur comprenant, dans le foyer, un brûleur principal à prémélange gazeux, alimenté en gaz par une conduite principale de gaz sous le contrôle d'un bloc électrovanne et en air sous pression par un ventilateur, et un brûleur d'allumage alimenté en gaz par une dérivation de la conduite principale.To this end, the invention relates to a gas premix burner for a sealed hearth boiler intended for the instantaneous preparation of domestic hot water, this burner comprising, in the hearth, a main burner with gas premix, supplied with gas by a main pipe. gas under the control of a solenoid valve block and pressurized air by a fan, and an ignition burner supplied with gas by a bypass of the main line.
Selon l'invention, le brûleur d'allumage est alimenté en comburant par une dérivation d'une tuyauterie de raccordement étanche du ventilateur avec le brûleur principalAccording to the invention, the ignition burner is supplied with oxidant by a bypass of a sealed connection pipe of the fan with the main burner.
De la sorte, le brûleur d'allumage se comporte comme une veilleuse atmosphérique à l'arrêt du brûleur principal et comme un brûleur à air total pendant le fonctionnement du brûleur principal.In this way, the ignition burner behaves like an atmospheric pilot light when the main burner stops and as a total air burner during the operation of the main burner.
La dérivation de comburant peut avantageusement être constituée par un tube de diamètre relativement important, par exemple d'au moins 18 mm, pour autoriser un apport suffisant d'air atmosphérique à l'arrêt du brûleur principal, tube dont l'embouchure est disposée en tant que prise dynamique et ajustable dans la tuyauterie de raccordement étanche du ventilateur avec le brûleur principal.The oxidizer bypass can advantageously be constituted by a tube of relatively large diameter, by example of at least 18 mm, to allow a sufficient supply of atmospheric air when the main burner stops, tube whose mouth is arranged as a dynamic and adjustable outlet in the tight connection piping of the fan with the burner main.
La description d'un exemple non limitatif qui suit en regard des dessins annexés va permettre de mieux expliciter l'invention.The description of a nonlimiting example which follows with reference to the appended drawings will make it possible to better explain the invention.
- La figure 1 représente schématiquement un brûleur d'allumage classique sous forme de veilleuse atmosphérique.FIG. 1 diagrammatically represents a conventional ignition burner in the form of an atmospheric pilot light.
- La figure 2 représente de même un brûleur d'allumage classique à air total pour chaudière à gaz à foyer pressurisé.FIG. 2 likewise represents a conventional total air ignition burner for a pressurized hearth gas boiler.
- La figure 3 est le schéma d'une chaudière à gaz à préparation d'eau chaude sanitaire comprenant le brûleur d'allumage conforme à l'invention.FIG. 3 is the diagram of a gas boiler for preparing domestic hot water comprising the ignition burner according to the invention.
- La figure 4 montre une variante de réalisation de la chaudière de la figure 3.FIG. 4 shows an alternative embodiment of the boiler of FIG. 3.
- Les figures 5 et 6 représentent schématiquement le brûleur d'allumage dans ses deux modes de fonctionnement.Figures 5 and 6 schematically represent the ignition burner in its two operating modes.
Le brûleur d'allumage 10 illustré par la figure 1 présente un injecteur de gaz 11 logé à l'entrée d'un tube à venturi 12 perinettant l'aspiration d'air principal atmosphérique de combustion API ; la combustion est complétée au moyen d'air secondaire atmosphérique AS1 prélevé dans le foyer.The ignition burner 10 illustrated in FIG. 1 has a
On voit sur la figure 2 un brûleur d'allumage 13 à air total ; l'injecteur de gaz 14 débouche dans un tube 15 d'arrivée d'air, cet air étant pressurisé au moyen d'un ventilateur V dont le débit est réglé de manière à produire dans un tube mélangeur 16 un mélange à léger excès d'air.FIG. 2 shows an
La veilleuse atmosphérique 10 de la figure 1 ne peut pas fonctionner de manière satisfaisante dans une chaudière à gaz à air soufflé et prémélange gazeux lorsque le brûleur principal fonctionne, tandis que le brûleur d'allumage à air total 13 de la figure 2 n'est pas économiquement adaptable à une telle chaudière. La chaudière à gaz 20 de la figure 3 comprend dans un foyer étanche 21 un brûleur principal 22, un brûleur d'allumage 23, un échangeur fumées-eau 24 et un conduit 25 d'évacuation des fumées ; l'échangeur 24 est constitué par exemple par un tube enroulé en spirale et destiné à la préparation d'eau sanitaire ; il peut également être agencé pour permettre de réchauffer de l'eau de chauffage central.The atmospheric pilot light 10 of FIG. 1 cannot function satisfactorily in a gas-fired air boiler and gas premix when the main burner is operating, while the total
Le brûleur principal 22 est alimenté en gaz par une conduite principale de gaz 26, sous la commande d'un bloc-électrovanne 27, et en air sous pression par un ventilateur 28. Celui-ci est relié au brûleur 22 par une tuyauterie de raccordement étanche 29. La conduite de gaz 26 débouche soit en 26a dans une tuyauterie ou une ouie d'aspiration 30 du ventilateur (fig. 3), soit en 26b dans la tuyauterie 29 (fig. 4) ; le prémélange se réalise dans le premier cas dans le ventilateur lui- même et dans le deuxième cas en aval de celui-ci. Le brûleur d'allumage 23 conforme à l'invention présente un injecteur de gaz 31 disposé à l'entrée d'un tube à venturi 32 et alimenté en gaz par une dérivation 33 de la conduite principale de gaz 26 sous la commande du bloc électrovanne 27.The
Le brûleur 23 est alimenté en prémélange gazeux (fig. 3) ou en air (fig. 4) par une dérivation 34 de la tuyauterie de raccordement étanche 29 ; dans le mode de réalisation de la figure 4, la dérivation 34 est située en amont du point 26b. La dérivation 34 est liée au tube à venturi 32.The
La dérivation de comburant 34 est disposée en prise latérale ou en tube de Pitot dans la tuyauterie 29 de façon à bénéficier dans ce dernier cas d'un effet dynamique et elle présente par exemple un embout tubulaire 35 susceptible de rotation autour de son axe 36 et muni d'un orifice 37 coupé en sifflet ; de la sorte, la rotation de l'embout 35 autour de son axe modifie grâce à l'effet dynamique précité le débit de comburant vers le brûleur d'allumage 23 et permet d'ajuster aisément in situ le débit de comburant et l'accrochage de la flamme.The
On voit sur les figures 5 et 6 la configuration de la flamme du brûleur d'allumage à l'arrêt et respectivement lors du fonctionnement du brûleur principal. Sur la figure 5, la flamme relativement haute F5 est obtenue grâce à l'apport d'air primaire AP5 transitant par la dérivation 34 et d'air secondaire AS5 provenant de la tuyauterie 30 via le ventilateur, le brûleur principal et le foyer. Sur la figure 6, la flamme de hauteur réduite F6 est obtenue grâce à l'apport d'air total AT6 ou de prémélange air-gaz AG6 ; la réduction de hauteur de flamme due à la surpression de l'air ou du prémélange n'altère pas la température de la flamme d'allumage.Figures 5 and 6 show the configuration of the ignition burner flame at stop and respectively during operation of the main burner. In FIG. 5, the relatively high flame F5 is obtained by means of the supply of primary air AP5 passing through the
Le brûleur à prémélange gazeux décrit fonctionne de la manière suivante :lorsque le bloc électrovanne 27 l'autorise, le brûleur d'allumage 23 est allumé en permanence et, à l'arrêt du brûleur principal 22, reçoit un faible débit de gaz de la dérivation 33 ; le brûleur 23 reçoit d'autre part le débit d'air primaire AP5 nécessaire provenant de la tuyauterie ou l'ouie 30 d'entrée du ventilateur alors au repos et passant par le tube de dérivation 34 puis par le tube à venturi 32. L'air secondaire AS5 est amené par la tuyauterie 30, le ventilateur 28, la tuyauterie 29, le brûleur principal 22 et le foyer 21.The gas premix burner described operates in the following manner: when the
Lorsque le brûleur principal 22 doit être mis en fonctionnement suite à une demande d'eau chaude sanitaire, le ventilateur 28 est mis en marche et le bloc électrovanne 27 ouvre la liaison 26-26a (fig. 3) ou 26-26b (fig. 4) ; de l'air sous pression parvient à la tuyauterie de raccordement 29.When the
L'orifice 37 du tube de dérivation 34 prélève dynamiquement une partie de l'air avec un débit et une pression déterminés par la position en rotation de l'extrémité tubulaire ou douille 35 et par son diamètre relativement grand, par exemple supérieur à 18 mm. Il va de soi que l'on pourrait prévoir un autre moyen d'ajustement ou d'occultation réglable de la section de la dérivation 34.The
D'autre part, la chaudière objet de l'invention peut être du type mixte, c'est-à-dire présenter plusieurs échangeurs destinés respectivement à préparer l'eau chaude sanitaire et à réchauffer de l'eau de chauffage central.On the other hand, the boiler object of the invention can be of the mixed type, that is to say have several exchangers intended respectively for preparing domestic hot water and for heating central heating water.
Claims (4)
caractérisé par le fait que le brûleur d'allumage (23) est alimenté en comburant par une dérivation tubulaire (34) d'une tuyauterie (29) de raccordement étanche du ventilateur (28) avec le brûleur principal (22).1. Gaseous premix burner for a sealed hearth boiler intended for the presentation of domestic hot water and if necessary for the heating of heating water, comprising a main burner (22) and an ignition burner (23), the main burner being of the gas premix type and being supplied with gas by a main gas pipe (26) under the control of a solenoid valve (27), and by combustion by a fan (28), the ignition burner being supplied with gas by a branch (33) of the main pipe,
characterized by the fact that the ignition burner (23) is supplied with oxidant by a tubular branch (34) of a pipe (29) sealingly connecting the fan (28) with the main burner (22).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8312280 | 1983-07-25 | ||
| FR8312280A FR2549938B1 (en) | 1983-07-25 | 1983-07-25 | GAS PREMIX BURNER AND BOILER EQUIPPED WITH SUCH A BURNER |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0136928A1 true EP0136928A1 (en) | 1985-04-10 |
| EP0136928B1 EP0136928B1 (en) | 1986-12-30 |
Family
ID=9291096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19840401550 Expired EP0136928B1 (en) | 1983-07-25 | 1984-07-23 | Burner for premixed gas and boiler equipped with such a burner |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0136928B1 (en) |
| DE (1) | DE3461860D1 (en) |
| FR (1) | FR2549938B1 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4861261A (en) * | 1986-02-05 | 1989-08-29 | Kurt Krieger | Method of operating a gas-infrared radiator, and the gas-infrared radiator |
| EP0532165A2 (en) * | 1991-09-09 | 1993-03-17 | Aos Holding Company | Pressurized air seal for combustion chamber |
| US5344310A (en) * | 1991-11-22 | 1994-09-06 | Aichelin Gmbh | Burner for an industrial furnace |
| US5460515A (en) * | 1991-11-22 | 1995-10-24 | Aichelin Gmbh | Burner for an industrial furnace |
| US5513981A (en) * | 1991-11-22 | 1996-05-07 | Aichelin Gmbh | Burner with variable volume combination chamber |
| US5998605A (en) * | 1994-07-07 | 1999-12-07 | Glaxo Wellcome Inc. | Antiviral benzimidazole nucleoside analogues and method for their preparation |
| US20110200707A1 (en) * | 2008-10-20 | 2011-08-18 | Dsm Ip Assets B.V. | Fish flavour |
| CN103388902A (en) * | 2012-05-11 | 2013-11-13 | 四川汇利实业有限公司 | Multifunctional heating furnace for logistics department of hospital |
| CN105352171A (en) * | 2015-11-18 | 2016-02-24 | 常杰 | Portable combined water heater |
| EP3845804A1 (en) * | 2019-12-30 | 2021-07-07 | Pinnacle Climate Technologies | Gas line for gas appliance |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805748A (en) * | 2016-04-08 | 2016-07-27 | 重庆理工大学 | Fuel gas nozzle device and control method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE366780C (en) * | 1920-06-15 | 1923-01-11 | Franz Ungemach | Double gas-saving burner for gas cooker |
| US2494243A (en) * | 1944-07-31 | 1950-01-10 | Louis D Houlis | Pressure ribbon-type gas burner |
| FR2028635A5 (en) * | 1969-01-09 | 1970-10-09 | Saunier Duval | |
| DE2752663A1 (en) * | 1977-11-25 | 1979-05-31 | Haller Meurer Werke Ag | Gas burner automatic air-fuel ratio regulating equipment - has thermostatic unit controlling gas valve, linked airflow control flap |
| DE2905415A1 (en) * | 1979-02-10 | 1980-08-14 | Vaillant Joh Gmbh & Co | Diffusion pilot burner operating system - exhausts combustion air from underside of guide above nozzle |
| DE3112073A1 (en) * | 1981-03-27 | 1982-11-11 | Joh. Vaillant Gmbh U. Co, 5630 Remscheid | Premixing pilot burner |
-
1983
- 1983-07-25 FR FR8312280A patent/FR2549938B1/en not_active Expired
-
1984
- 1984-07-23 DE DE8484401550T patent/DE3461860D1/en not_active Expired
- 1984-07-23 EP EP19840401550 patent/EP0136928B1/en not_active Expired
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE366780C (en) * | 1920-06-15 | 1923-01-11 | Franz Ungemach | Double gas-saving burner for gas cooker |
| US2494243A (en) * | 1944-07-31 | 1950-01-10 | Louis D Houlis | Pressure ribbon-type gas burner |
| FR2028635A5 (en) * | 1969-01-09 | 1970-10-09 | Saunier Duval | |
| DE2752663A1 (en) * | 1977-11-25 | 1979-05-31 | Haller Meurer Werke Ag | Gas burner automatic air-fuel ratio regulating equipment - has thermostatic unit controlling gas valve, linked airflow control flap |
| DE2905415A1 (en) * | 1979-02-10 | 1980-08-14 | Vaillant Joh Gmbh & Co | Diffusion pilot burner operating system - exhausts combustion air from underside of guide above nozzle |
| DE3112073A1 (en) * | 1981-03-27 | 1982-11-11 | Joh. Vaillant Gmbh U. Co, 5630 Remscheid | Premixing pilot burner |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4861261A (en) * | 1986-02-05 | 1989-08-29 | Kurt Krieger | Method of operating a gas-infrared radiator, and the gas-infrared radiator |
| EP0256063B1 (en) * | 1986-02-05 | 1990-09-12 | KRIEGER, Kurt | Process for operating a gas infra-red radiatior and gas infra-red radiatior |
| USRE34541E (en) * | 1986-02-05 | 1994-02-15 | Kreiger; Kurt | Method of operating a gas-infrared radiator, and the gas-infrared radiator |
| EP0532165A2 (en) * | 1991-09-09 | 1993-03-17 | Aos Holding Company | Pressurized air seal for combustion chamber |
| EP0532165A3 (en) * | 1991-09-09 | 1993-07-14 | Aos Holding Company | Pressurized air seal for combustion chamber |
| US5460515A (en) * | 1991-11-22 | 1995-10-24 | Aichelin Gmbh | Burner for an industrial furnace |
| US5344310A (en) * | 1991-11-22 | 1994-09-06 | Aichelin Gmbh | Burner for an industrial furnace |
| US5513981A (en) * | 1991-11-22 | 1996-05-07 | Aichelin Gmbh | Burner with variable volume combination chamber |
| US5998605A (en) * | 1994-07-07 | 1999-12-07 | Glaxo Wellcome Inc. | Antiviral benzimidazole nucleoside analogues and method for their preparation |
| US20110200707A1 (en) * | 2008-10-20 | 2011-08-18 | Dsm Ip Assets B.V. | Fish flavour |
| US8652548B2 (en) * | 2008-10-20 | 2014-02-18 | Dsm Ip Assests B.V. | Fish flavour |
| US8815314B2 (en) | 2008-10-20 | 2014-08-26 | Dsm Ip Assets B.V. | Fish flavour |
| CN103388902A (en) * | 2012-05-11 | 2013-11-13 | 四川汇利实业有限公司 | Multifunctional heating furnace for logistics department of hospital |
| CN105352171A (en) * | 2015-11-18 | 2016-02-24 | 常杰 | Portable combined water heater |
| EP3845804A1 (en) * | 2019-12-30 | 2021-07-07 | Pinnacle Climate Technologies | Gas line for gas appliance |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0136928B1 (en) | 1986-12-30 |
| FR2549938A1 (en) | 1985-02-01 |
| FR2549938B1 (en) | 1987-08-07 |
| DE3461860D1 (en) | 1987-02-05 |
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