EP1075622A1 - Liquid petroleum gas burner heating device and method for supplying liquid petroleum gas - Google Patents

Liquid petroleum gas burner heating device and method for supplying liquid petroleum gas

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Publication number
EP1075622A1
EP1075622A1 EP00901688A EP00901688A EP1075622A1 EP 1075622 A1 EP1075622 A1 EP 1075622A1 EP 00901688 A EP00901688 A EP 00901688A EP 00901688 A EP00901688 A EP 00901688A EP 1075622 A1 EP1075622 A1 EP 1075622A1
Authority
EP
European Patent Office
Prior art keywords
bottle
petroleum gas
liquefied petroleum
heating
enclosure
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
Application number
EP00901688A
Other languages
German (de)
French (fr)
Other versions
EP1075622B1 (en
Inventor
Daniel Bouvier
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.)
Compagnie des Gaz de Petrole Primagaz SA
Original Assignee
Compagnie des Gaz de Petrole Primagaz SA
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 Compagnie des Gaz de Petrole Primagaz SA filed Critical Compagnie des Gaz de Petrole Primagaz SA
Priority to SI200031005T priority Critical patent/SI1075622T1/en
Publication of EP1075622A1 publication Critical patent/EP1075622A1/en
Application granted granted Critical
Publication of EP1075622B1 publication Critical patent/EP1075622B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C7/00Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
    • F17C7/02Discharging liquefied gases
    • F17C7/04Discharging liquefied gases with change of state, e.g. vaporisation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00Applications
    • F17C2270/07Applications for household use
    • F17C2270/0745Gas bottles

Definitions

  • a heating device with a liquefied petroleum gas burner comprising a bottle of liquefied petroleum gas having a gaseous phase above a liquid phase and a supply conduit for supplying the gas phase burner, which increases the flow and keeps it at a substantially constant level, regardless of the outside temperature and consumption, while being very safe to use.
  • means are provided for heating the bottle and means intended to interrupt the action of the heating means when the pressure of the liquefied petroleum gas in the bottle reaches a given threshold.
  • the bottle As the bottle is heated and brought to a given temperature, higher than the ambient temperature, the bottle is capable of providing a constant flow at a given pressure. If the pressure rises above the operating pressure, for example 13 bar for propane (which corresponds to 42 ° C) and 10 bar for a mixture of 60% by volume of butane and 40% in volume of propane, which can endanger the bottle, the means, in particular with a pressure switch, intended to interrupt the action of the heating means come into action and interrupt the heating of the bottle. The pressure decreases.
  • the means intended to interrupt the action of the heating means when the pressure of the liquefied petroleum gas in the bottle reaches a given threshold are such that they also interrupt the action of the heating means when the pressure of the liquefied petroleum in the bottle becomes below a limit value below the given threshold. This avoids heating the bottle whose tap is closed and which does not communicate with the pressure switch.
  • the heating means can be electrical means or means of heating by hot air. Admittedly, hot air has a low conductivity and tends to escape in particular upwards. However, in spite of these drawbacks, it has the decisive advantages, for example compared to water, of not freezing, of being less dense and therefore less heavy and of not causing spurts during transport, nor corrosion.
  • the heating means comprise a burner supplied by a bypass in the liquefied petroleum gas contained in the bottle.
  • the device is thus autonomous from the thermal point of view.
  • the heating means comprise a boiler, the hearth of which is supplied with liquefied petroleum gas coming from the bottle and which comprises a circuit having a hot water outlet duct going to a heat exchanger and a return pipe going from the exchanger to the boiler and a circulation pump.
  • a fan blows air into the heat exchanger and directs it over the bottle, preferably at the bottom of the latter.
  • the heat exchanger, the fan and the lower part of the bottle are enclosed in an enclosure, preferably insulated, and there is provided in the enclosure a baffle arranged with so that the air, after giving heat to the bottle, is taken up by the fan.
  • the air is enclosed in an enclosure, it does not escape upwards to the outside and as it is constantly taken up, the quantity of thermal energy to be supplied is reduced as much as possible.
  • the upper part of the bottle is outside the enclosure and seals are provided between the bottle and the enclosure at the transition between the lower and upper parts of the bottle.
  • a temperature probe is placed in the air flow, preferably as close as possible to the bottle, and an electric circuit is provided for switching off the heating means, preferably the pump, when the probe detects a temperature above a given temperature threshold.
  • an electric circuit is provided for switching off the heating means, preferably the pump, when the probe detects a temperature above a given temperature threshold.
  • the enclosure is located in a lower chamber delimited by a base and by a horizontal bottom, while a partition, preferably vertical, subdivides the upper space into a compartment comprising the heating means and regulator and in another compartment comprising the bottles. In the event of a leak, this prevents any fire hazard.
  • the invention also relates to a method for supplying liquefied petroleum gas in the gaseous phase from a bottle of liquefied petroleum gas which consists in heating the bottle and in interrupting the heating when the pressure of the liquefied petroleum gas in the bottle reaches a given threshold.
  • U.S. Patent No. 5,761,911 (Jurci) describes a device for supplying liquefied gas. These liquefied gases are not petroleum gases. These are gases used in the semiconductor manufacturing processes as listed in Table I.
  • the present invention recommends maintaining the temperature of the bottle of liquefied petroleum gas at a given value whatever the ambient temperature.
  • the value given is most often, especially in winter, higher than the ambient temperature. This increases the flow and keeps it at a substantially constant level.
  • U.S. Patent 5,557,940 (Hendricks) describes a portable heating unit for adding refrigerant to a cooling system which is discharged. He explains that the on-site loading of cooling systems, such as air conditioners, freezers and refrigerators, is problematic in cold weather because the refrigerant cools to the point where it is difficult to obtain vapor pressure. loading. When a refrigerant is sent to a refrigerator from a bottle containing it, it is sent there as a liquid. To form frigories, the liquid is evaporated.
  • the Hendricks document recommends heating the bottle so that the gas, which is there in the upper part, is under sufficient pressure to push the liquid phase which is in the lower part.
  • liquefied petroleum gas is not supplied and a gas phase is not supplied.
  • FIG. 1 is a schematic view of an apparatus according to the invention
  • FIG. 2 is a sectional view of the enclosure of the supply apparatus
  • the Figure 3 is a partial schematic view of a variant.
  • the device according to the invention comprises a bottle 1 of liquefied petroleum gas, an outlet duct 2 of which leads to a distribution block 3. From the distribution block, a duct 4 leads to a regulator D then a burner B, a duct 5 to a regulator 6 and a conduit 7 to a pressure switch 8.
  • the liquefied petroleum gas expanded in the regulator 6 arrives through a conduit 9 to the hearth of a boiler 10.
  • the boiler 10 comprises an outlet conduit 11 leading to an exchanger 12 of heat.
  • the hot water after having been cooled in the heat exchanger 12, leaves it through a conduit 13 provided with a recirculation pump 14 to return to the boiler.
  • a conduit 15 is also provided, bypassing the conduit 13 and leading to an expansion tank 16.
  • the heat exchanger 12 is interposed between a fan 17 and the bottle 1, while a temperature probe 18 as close as possible to the bottle 1 is interposed between the latter and the heat exchanger 12. Finally, a electrical circuit 19 connects the pressure switch 8 and the temperature probe 18 to a relay 20 for supplying electrical power to the pump 14.
  • the fan 17, the heat exchanger 12 and the bottom of the bottle 1 are housed in an enclosure 21, the opening through which the bottle 1 enters the enclosure being sealed by a seal 22 flexible circular.
  • baffles 22 which are arranged so as to create an air circulation in the enclosure 21. The air heated in the heat exchanger 12 comes to lick the bottom of the bottle 1 and then leaves above the baffle 23 to return to the fan 17.
  • the enclosure 21 is arranged in the lower part, while the upper part of the device is separated by a partition which is not represented in two compartments, one comprising the bottle (s) 1 and the other essentially the boiler. 10, the pressure switch 8, the probe 18, their circuit and the expansion tank.
  • the pressure switch 8 When the pressure switch 8 detects a pressure above a given threshold (13 bar), it stops the pump 14 by the relay 20. The bottle 1 stops to be heated by hot air. When the pressure switch 8 detects a pressure below a limit value (2 bar), it also interrupts the heating.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

A liquid petroleum gas burner heating device, wherein means (10-17) for heating the cylinder (1) are interrupted by the action of other means (8) when the pressure of the liquid petroleum gas inside the cylinder (1) reaches a specific threshold value.

Description

Dispositif de chauffage à brûleur de gaz de pétrole liquéfié et procédé d'alimentation en gaz de pétrole liquéfiéLiquefied petroleum gas burner heating device and method for supplying liquefied petroleum gas
De nombreuses applications des gaz de pétrole liquéfié en bouteille demandent pour l'alimentation d'un brûleur de chauffage un débit important (rôtissoire à poulet, friteuse, désherbage, marquage thermique, etc.). Dans la pratique, on est vite limité par les possibilités de débit des bouteilles et l'on est conduit à en associer un grand nombre en parallèle, ce qui pose des problèmes de poids, d'encombrement et de sécurité du fait des raccords multiples. Le débit d'une bouteille de gaz de pétrole liquéfié dépend de la température. Plus celle-ci est élevée, plus le débit possible est grand. Le débit dépend également de la durée de l'utilisation. Plus celle-ci est longue, plus le débit est petit. Une demande de gaz trop importante entraîne une baisse de température et, par conséquent, une chute de pression qui peut se traduire par le givrage des parois de la bouteille qui, en raison de son effet isolant, rend le problème encore plus aigu.Many applications of bottled liquefied petroleum gases require a significant flow rate for the supply of a heating burner (chicken roasting pan, fryer, weeding, thermal marking, etc.). In practice, one is quickly limited by the possibilities of flow of the bottles and one is led to associate a large number in parallel, which poses problems of weight, size and safety due to the multiple fittings. The flow rate of a cylinder of liquefied petroleum gas depends on the temperature. The higher this is, the greater the possible flow. The flow also depends on the duration of use. The longer it is, the smaller the flow. Too much gas demand leads to a drop in temperature and, consequently, a pressure drop which can result in icing of the walls of the bottle which, due to its insulating effect, makes the problem even more acute.
L'invention pallie ces inconvénients par un dispositif de chauffage à brûleur de gaz de pétrole liquéfié, comprenant une bouteille de gaz de pétrole liquéfié ayant une phase gazeuse au-dessus d'une phase liquide et un conduit d'alimentation permettant d'alimenter le brûleur en la phase gazeuse, qui permet d'augmenter le débit et de le maintenir à un niveau sensiblement constant, quelle que soit la température extérieure et la consommation, tout en étant d'une grande sécurité d'emploi.The invention overcomes these drawbacks by a heating device with a liquefied petroleum gas burner, comprising a bottle of liquefied petroleum gas having a gaseous phase above a liquid phase and a supply conduit for supplying the gas phase burner, which increases the flow and keeps it at a substantially constant level, regardless of the outside temperature and consumption, while being very safe to use.
Suivant l'invention, il est prévu des moyens de chauffage de la bouteille et des moyens destinés à interrompre l'action des moyens de chauffage lorsque la pression du gaz de pétrole liquéfié dans la bouteille atteint un seuil donné. Comme on chauffe la bouteille et on la porte à une température donnée, supérieure à la température ambiante, la bouteille est apte à fournir un débit constant à une pression donnée. Si la pression vient à s'élever au- delà la pression de service, par exemple de 13 bar pour du propane (qui correspond à 42°C) et de 10 bar pour un mélange à 60% en volume de butane et à 40% en volume de propane, ce qui peut mettre en danger la bouteille, les moyens, notamment à pressostat, destinés à interrompre l'action des moyens de chauffage entrent en action et interrompent le chauffage de la bouteille. La pression diminue. De préférence, les moyens destinés à interrompre l'action des moyens de chauffage lorsque la pression du gaz de pétrole liquéfié dans la bouteille atteint un seuil donné sont tels qu'ils interrompent aussi l'action des moyens de chauffage lorsque la pression du gaz de pétrole liquéfié dans la bouteille devient inférieure à une valeur limite inférieure au seuil donné. On évite ainsi de chauffer la bouteille dont le robinet est fermé et qui ne communique pas avec le pressostat.According to the invention, means are provided for heating the bottle and means intended to interrupt the action of the heating means when the pressure of the liquefied petroleum gas in the bottle reaches a given threshold. As the bottle is heated and brought to a given temperature, higher than the ambient temperature, the bottle is capable of providing a constant flow at a given pressure. If the pressure rises above the operating pressure, for example 13 bar for propane (which corresponds to 42 ° C) and 10 bar for a mixture of 60% by volume of butane and 40% in volume of propane, which can endanger the bottle, the means, in particular with a pressure switch, intended to interrupt the action of the heating means come into action and interrupt the heating of the bottle. The pressure decreases. Preferably, the means intended to interrupt the action of the heating means when the pressure of the liquefied petroleum gas in the bottle reaches a given threshold are such that they also interrupt the action of the heating means when the pressure of the liquefied petroleum in the bottle becomes below a limit value below the given threshold. This avoids heating the bottle whose tap is closed and which does not communicate with the pressure switch.
Les moyens de chauffage peuvent être des moyens électriques ou des moyens de chauffage par de l'air chaud. Certes, l'air chaud a une faible conductibilité et a tendance à s'échapper notamment vers le haut. Mais, en dépit de ces inconvénients, il présente les avantages décisifs, par rapport par exemple à de l'eau, de ne pas geler, d'être moins dense et donc moins lourd et de ne pas provoquer de giclées lors du transport, ni de corrosion.The heating means can be electrical means or means of heating by hot air. Admittedly, hot air has a low conductivity and tends to escape in particular upwards. However, in spite of these drawbacks, it has the decisive advantages, for example compared to water, of not freezing, of being less dense and therefore less heavy and of not causing spurts during transport, nor corrosion.
Suivant un mode de réalisation, les moyens de chauffage comprennent un brûleur alimenté par une dérivation en le gaz de pétrole liquéfié contenu dans la bouteille. Le dispositif est ainsi autonome du point de vue thermique.According to one embodiment, the heating means comprise a burner supplied by a bypass in the liquefied petroleum gas contained in the bottle. The device is thus autonomous from the thermal point of view.
Suivant un mode de réalisation particulier, les moyens de chauffage comprennent une chaudière dont le foyer est alimenté en gaz de pétrole liquéfié provenant de la bouteille et qui comporte un circuit ayant un conduit de sortie d'eau chaude allant à un échangeur de chaleur et un conduit de retour allant de l'échangeur à la chaudière et une pompe de circulation. Un ventilateur insuffle de l'air dans l'échangeur de chaleur et le dirige sur la bouteille, de préférence à la partie inférieure de celle-ci. Suivant un mode de réalisation tout particulièrement préféré, l'échangeur de chaleur, le ventilateur et la partie inférieure de la bouteille sont enfermés dans une enceinte, de préférence calorifugée, et il est prévu dans l'enceinte une chicane disposée de manière à ce que l'air, après avoir cédé de la chaleur à la bouteille, soit repris par le ventilateur. Grâce au fait que l'air est enfermé dans une enceinte, il ne s'échappe pas vers le haut à l'extérieur et comme il est repris constamment, la quantité d'énergie thermique à fournir est réduite autant que possible. De préférence, la partie supérieure de la bouteille est hors de l'enceinte et il est prévu des joints d'étanchéité entre la bouteille et l'enceinte à la transition entre les parties inférieure et supérieure de la bouteilleAccording to a particular embodiment, the heating means comprise a boiler, the hearth of which is supplied with liquefied petroleum gas coming from the bottle and which comprises a circuit having a hot water outlet duct going to a heat exchanger and a return pipe going from the exchanger to the boiler and a circulation pump. A fan blows air into the heat exchanger and directs it over the bottle, preferably at the bottom of the latter. According to a very particularly preferred embodiment, the heat exchanger, the fan and the lower part of the bottle are enclosed in an enclosure, preferably insulated, and there is provided in the enclosure a baffle arranged with so that the air, after giving heat to the bottle, is taken up by the fan. Thanks to the fact that the air is enclosed in an enclosure, it does not escape upwards to the outside and as it is constantly taken up, the quantity of thermal energy to be supplied is reduced as much as possible. Preferably, the upper part of the bottle is outside the enclosure and seals are provided between the bottle and the enclosure at the transition between the lower and upper parts of the bottle.
Suivant un perfectionnement, une sonde de température est disposée dans le flux d'air, de préférence le plus près possible de la bouteille et il est prévu un circuit électrique de mise à l'arrêt des moyens de chauffage, de préférence de la pompe, lorsque la sonde détecte une température supérieure à un seuil de température donné. On dispose ainsi d'une sécurité supplémentaire en plus de celle due à la surveillance de la pression à l'intérieur de la bouteille. Suivant une variante, on fournit de l'air chaud à l'aide d'un ventilateur qui envoie de l'air sur une résistance électrique chauffante, le ventilateur, la résistance et la partie inférieure de la bouteille étant enfermés dans une enceinte.According to an improvement, a temperature probe is placed in the air flow, preferably as close as possible to the bottle, and an electric circuit is provided for switching off the heating means, preferably the pump, when the probe detects a temperature above a given temperature threshold. This provides additional security in addition to that due to monitoring the pressure inside the bottle. According to a variant, hot air is supplied using a fan which sends air to an electric heating resistor, the fan, the resistor and the lower part of the bottle being enclosed in an enclosure.
Dans un mode de réalisation préféré, l'enceinte se trouve dans une chambre inférieure délimitée par un socle et par un fond horizontal, tandis qu'une cloison, de préférence verticale, subdivise l'espace supérieur en un compartiment comprenant les moyens de chauffage et de régulation et en un autre compartiment comprenant les bouteilles. En cas de fuite, on prévient ainsi tout danger d'incendie. L'invention vise également un procédé d'alimentation en gaz de pétrole liquéfié en phase gazeuse à partir d'une bouteille de gaz de pétrole liquéfié qui consiste à chauffer la bouteille et à interrompre le chauffage lorsque la pression du gaz de pétrole liquéfié dans la bouteille atteint un seuil donné. Le brevet des Etats-Unis d'Amérique n° 5 761 911 (Jurci ) décrit un dispositif d'alimentation en gaz liquéfié. Ces gaz liquéfiés ne sont pas des gaz de pétrole. Ce sont des gaz utilisés dans les procédés de fabrication de semi conducteurs tels qu'ils sont énumérés au tableau I.In a preferred embodiment, the enclosure is located in a lower chamber delimited by a base and by a horizontal bottom, while a partition, preferably vertical, subdivides the upper space into a compartment comprising the heating means and regulator and in another compartment comprising the bottles. In the event of a leak, this prevents any fire hazard. The invention also relates to a method for supplying liquefied petroleum gas in the gaseous phase from a bottle of liquefied petroleum gas which consists in heating the bottle and in interrupting the heating when the pressure of the liquefied petroleum gas in the bottle reaches a given threshold. U.S. Patent No. 5,761,911 (Jurci) describes a device for supplying liquefied gas. These liquefied gases are not petroleum gases. These are gases used in the semiconductor manufacturing processes as listed in Table I.
Ce document antérieur vise à empêcher que des gouttelettes soient entraînées avec les gaz. Pour éviter cela, il ne faut pas qu'il se produise de bouillonnement, ce qui signifie qu'il ne faut pas trop chauffer. Il faut chauffer pour compenser simplement l'effet endothermique de l'évaporation. A cet effet, et comme mentionné explicitement à la page 4, lignes 14 à 18, le document antérieur prévoit des moyens pour augmenter la vitesse de transfert de chaleur entre l'atmosphère ambiante et la bouteille sans élever la température de la bouteille de gaz au-dessus de la température ambiante.This prior document aims to prevent droplets from being entrained with the gases. To avoid this, it should not happen bubbling, which means you shouldn't overheat. It must be heated to simply compensate for the endothermic effect of evaporation. To this end, and as explicitly mentioned on page 4, lines 14 to 18, the prior document provides means for increasing the speed of heat transfer between the ambient atmosphere and the cylinder without raising the temperature of the gas cylinder at -above room temperature.
La présente invention préconise à l'opposé de maintenir la température de la bouteille de gaz de pétrole liquéfié à une valeur donnée quelle que soit la température ambiante. La valeur donnée est le plus souvent, notamment en hiver, supérieure à la température ambiante. Cela permet d'augmenter le débit et de le maintenir à un niveau sensiblement constant.The present invention, on the other hand, recommends maintaining the temperature of the bottle of liquefied petroleum gas at a given value whatever the ambient temperature. The value given is most often, especially in winter, higher than the ambient temperature. This increases the flow and keeps it at a substantially constant level.
Le brevet des Etats-Unis d'Amérique n° 5 557 940 (Hendricks) décrit une unité portative de chauffage pour ajouter du réfrigérant à un système de refroidissement qui est déchargé. Il explique que le chargement sur site de systèmes de refroidissement, tels que de conditionneurs d'air, de congélateurs et de réfrigérateurs, pose problème par temps froid parce que le réfrigérant se refroidit au point où il est difficile d'obtenir une pression de vapeur de chargement. Lorsqu'un réfrigérant est envoyé à un réfrigérateur à partir d'une bouteille le contenant, il y est envoyé sous forme de liquide. Pour former des frigories, le liquide est évaporé.U.S. Patent 5,557,940 (Hendricks) describes a portable heating unit for adding refrigerant to a cooling system which is discharged. He explains that the on-site loading of cooling systems, such as air conditioners, freezers and refrigerators, is problematic in cold weather because the refrigerant cools to the point where it is difficult to obtain vapor pressure. loading. When a refrigerant is sent to a refrigerator from a bottle containing it, it is sent there as a liquid. To form frigories, the liquid is evaporated.
Le document Hendricks préconise de chauffer la bouteille de manière à ce que le gaz, qui s'y trouve dans la partie supérieure, soit sous une pression suffisante pour pousser la phase liquide qui est à la partie inférieure. Dans le dispositif de Hendricks, on n'alimente pas en gaz de pétrole liquéfié et on n'alimente pas en une phase gazeuse.The Hendricks document recommends heating the bottle so that the gas, which is there in the upper part, is under sufficient pressure to push the liquid phase which is in the lower part. In the Hendricks device, liquefied petroleum gas is not supplied and a gas phase is not supplied.
Le FR-A-2 354 507 ne décrit pas un brûleur dans lequel on utilise du gaz de pétrole liquéfié pour un chauffage. Il prévoit de chauffer une bouteille de gaz de pétrole liquéfié, mais pas d'interrompre le chauffage dans certaines conditions. Au dessin annexé, donné uniquement à titre d'exemple : la figure 1 est une vue schématique d'un appareil suivant l'invention, la figure 2 est une vue en coupe de l'enceinte de l'appareil d'alimentation, et la figure 3 est une vue schématique partielle d'une variante. Le dispositif suivant l'invention comprend une bouteille 1 de gaz de pétrole liquéfié dont un conduit 2 de sortie mène à un bloc de distribution 3. Du bloc de distribution partent un conduit 4 vers un détendeur D puis un brûleur B, un conduit 5 vers un détendeur 6 et un conduit 7 vers un pressostat 8. Le gaz de pétrole liquéfié détendu dans le détendeur 6 arrive par un conduit 9 au foyer d'une chaudière 10. La chaudière 10 comporte un conduit 11 de sortie menant à un échangeur 12 de chaleur. L'eau chaude, après avoir été refroidie dans l'échangeur 12 de chaleur, en sort par un conduit 13 muni d'une pompe 14 de recirculation pour retourner à la chaudière. Il est prévu également un conduit 15 en dérivation du conduit 13 et menant à un vase d'expansion 16.FR-A-2 354 507 does not describe a burner in which liquefied petroleum gas is used for heating. It plans to heat a cylinder of liquefied petroleum gas, but not to stop the heating under certain conditions. In the accompanying drawing, given solely by way of example: FIG. 1 is a schematic view of an apparatus according to the invention, FIG. 2 is a sectional view of the enclosure of the supply apparatus, and the Figure 3 is a partial schematic view of a variant. The device according to the invention comprises a bottle 1 of liquefied petroleum gas, an outlet duct 2 of which leads to a distribution block 3. From the distribution block, a duct 4 leads to a regulator D then a burner B, a duct 5 to a regulator 6 and a conduit 7 to a pressure switch 8. The liquefied petroleum gas expanded in the regulator 6 arrives through a conduit 9 to the hearth of a boiler 10. The boiler 10 comprises an outlet conduit 11 leading to an exchanger 12 of heat. The hot water, after having been cooled in the heat exchanger 12, leaves it through a conduit 13 provided with a recirculation pump 14 to return to the boiler. A conduit 15 is also provided, bypassing the conduit 13 and leading to an expansion tank 16.
L'échangeur de chaleur 12 est interposé entre un ventilateur 17 et la bouteille 1 , cependant qu'une sonde 18 de température aussi près que possible de la bouteille 1 est interposée entre celle-ci et l'échangeur de chaleur 12. Enfin, un circuit électrique 19 relie le pressostat 8 et la sonde 18 de température à un relais 20 de puissance d'alimentation en énergie électrique de la pompe 14.The heat exchanger 12 is interposed between a fan 17 and the bottle 1, while a temperature probe 18 as close as possible to the bottle 1 is interposed between the latter and the heat exchanger 12. Finally, a electrical circuit 19 connects the pressure switch 8 and the temperature probe 18 to a relay 20 for supplying electrical power to the pump 14.
Comme le montre la figure 2, le ventilateur 17, l'échangeur de chaleur 12 et le bas de la bouteille 1 sont logés dans une enceinte 21 , l'ouverture par laquelle la bouteille 1 pénètre dans l'enceinte étant rendue étanche par un joint 22 souple circulaire. Il est prévu dans l'enceinte 21 des chicanes 22 qui sont disposées de manière à créer une circulation d'air dans l'enceinte 21. L'air chauffé dans l'échangeur de chaleur 12 vient lécher le bas de la bouteille 1 puis repart au-dessus de la chicane 23 pour retourner au ventilateur 17. A la figure 3, on reconnaît le même ventilateur 17 logé dans l'enceinteAs shown in Figure 2, the fan 17, the heat exchanger 12 and the bottom of the bottle 1 are housed in an enclosure 21, the opening through which the bottle 1 enters the enclosure being sealed by a seal 22 flexible circular. There are provided in the enclosure 21 baffles 22 which are arranged so as to create an air circulation in the enclosure 21. The air heated in the heat exchanger 12 comes to lick the bottom of the bottle 1 and then leaves above the baffle 23 to return to the fan 17. In Figure 3, we recognize the same fan 17 housed in the enclosure
21 , mais l'échangeur de chaleur est remplacé par une résistance électrique 24.21, but the heat exchanger is replaced by an electrical resistance 24.
L'enceinte 21 est disposée en partie basse, tandis que la partie haute de l'appareil est séparée par une cloison qui n'est pas représentée en deux compartiments, l'un comportant la ou les bouteilles 1 et l'autre essentiellement la chaudière 10, le pressostat 8, la sonde 18, leur circuit et le vase d'expansion.The enclosure 21 is arranged in the lower part, while the upper part of the device is separated by a partition which is not represented in two compartments, one comprising the bottle (s) 1 and the other essentially the boiler. 10, the pressure switch 8, the probe 18, their circuit and the expansion tank.
Lorsque le pressostat 8 détecte une pression supérieure à un seuil donné (13 bar), il arrête la pompe 14 par le relais 20. La bouteille 1 cesse d'être chauffée par de l'air chaud. Lorsque le pressostat 8 détecte une pression inférieure à une valeur limite (2 bar), il interrompt aussi le chauffage. When the pressure switch 8 detects a pressure above a given threshold (13 bar), it stops the pump 14 by the relay 20. The bottle 1 stops to be heated by hot air. When the pressure switch 8 detects a pressure below a limit value (2 bar), it also interrupts the heating.

Claims

REVENDICATIONS
1. Dispositif de chauffage à brûleur de gaz de pétrole liquéfié, comprenant une bouteille (1 ) de gaz de pétrole liquéfié ayant une phase gazeuse au-dessus d'une phase liquide et un conduit d'alimentation permettant d'alimenter le brûleur en la phase gazeuse, caractérisé par des moyens de chauffage (10 à 17) de la bouteille (1 ) à une température supérieure à la température ambiante et par des moyens (8) destinés à interrompre l'action des moyens (10 à 17) de chauffage lorsque la pression du gaz de pétrole liquéfié dans la bouteille (1 ) atteint un seuil donné.1. A device for heating a liquefied petroleum gas burner, comprising a bottle (1) of liquefied petroleum gas having a gaseous phase above a liquid phase and a supply duct for supplying the burner with the gas phase, characterized by means (10 to 17) of heating the bottle (1) to a temperature above ambient temperature and by means (8) intended to interrupt the action of the heating means (10 to 17) when the pressure of the liquefied petroleum gas in the bottle (1) reaches a given threshold.
2. Dispositif suivant la revendication 1 , caractérisé en ce que les moyens de chauffage comprennent un foyer alimenté par une dérivation (5) en le gaz de pétrole liquéfié contenu dans la bouteille (1 ).2. Device according to claim 1, characterized in that the heating means comprise a hearth supplied by a bypass (5) in the liquefied petroleum gas contained in the bottle (1).
3. Dispositif suivant la revendication 2, caractérisé en ce que les moyens de chauffage comprennent une chaudière (10) dont le foyer est alimenté en le gaz de pétrole liquéfié provenant de la bouteille (1 ) et qui comporte un circuit ayant un conduit (11 ) de sortie d'eau chaude allant à un echangeur de chaleur (12), un conduit (13) de retour allant de l'échangeur de chaleur (2) à la chaudière (10) et une pompe (14) de circulation, un ventilateur (17) insufflant de l'air dans l'échangeur de chaleur (12) et le dirigeant sur la bouteille (1 ), de préférence, à la partie inférieure de celle-ci.3. Device according to claim 2, characterized in that the heating means comprise a boiler (10) whose hearth is supplied with liquefied petroleum gas coming from the bottle (1) and which comprises a circuit having a duct (11 ) hot water outlet going to a heat exchanger (12), a return pipe (13) going from the heat exchanger (2) to the boiler (10) and a circulation pump (14), a fan (17) blowing air into the heat exchanger (12) and directing it on the bottle (1), preferably at the bottom of the latter.
4. Dispositif suivant la revendication 3, caractérisé en ce que l'échangeur de chaleur (12), le ventilateur (17) et la partie inférieure de la bouteille (1 ) sont enfermés dans une enceinte (21 ), de préférence calorifugée. O 00/508044. Device according to claim 3, characterized in that the heat exchanger (12), the fan (17) and the lower part of the bottle (1) are enclosed in an enclosure (21), preferably insulated. O 00/50804
5. Dispositif suivant la revendication 4, caractérisé par une chicane (23) disposée à l'intérieur de l'enceinte (21) de manière à ce que l'air, après avoir cédé de la chaleur à la bouteille (1), soit repris par le ventilateur (17).5. Device according to claim 4, characterized by a baffle (23) disposed inside the enclosure (21) so that the air, after having transferred heat to the bottle (1), is taken up by the fan (17).
6. Dispositif suivant l'une des revendications 2 à 5, caractérisé par une sonde (18) de température disposée dans le flux d'air, de préférence le plus près possible de la bouteille (1), et par un circuit (19) électrique de mise à l'arrêt des moyens de chauffage, de préférence de la pompe (14), lorsque la sonde (18) détecte une température supérieure à un seuil de température donné. 6. Device according to one of claims 2 to 5, characterized by a temperature probe (18) disposed in the air flow, preferably as close as possible to the bottle (1), and by a circuit (19) electric shutdown of the heating means, preferably of the pump (14), when the probe (18) detects a temperature above a given temperature threshold.
7. Dispositif suivant l'une des revendications 3 à 6, caractérisé en ce que la partie supérieure de la bouteille (1 ) est hors de l'enceinte et il est prévu des joints (22) d'étanchéité entre la bouteille et l'enceinte à la transition entre les parties inférieure et supérieure de la bouteille.7. Device according to one of claims 3 to 6, characterized in that the upper part of the bottle (1) is outside the enclosure and there are provided seals (22) sealing between the bottle and the enclosure at the transition between the lower and upper parts of the bottle.
8. Dispositif suivant la revendication 1 , 6 ou 7, caractérisé en ce que les moyens de chauffage par de l'air chaud comprennent un ventilateur (17) disposé de manière à envoyer de l'air sur une résistance électrique (24) chauffante, le ventilateur, la résistance et la partie inférieure de la bouteille étant, de préférence, enfermée dans une enceinte.8. Device according to claim 1, 6 or 7, characterized in that the means for heating with hot air comprise a fan (17) arranged so as to send air over an electric resistance heater (24), the fan, the resistance and the lower part of the bottle being preferably enclosed in an enclosure.
9. Dispositif l'une des revendications précédentes, caractérisé en ce que les moyens (8) destinés à interrompre l'action des moyens (10 à 17) de chauffage lorsque la pression du gaz de pétrole liquéfié dans la bouteille (1 ) atteint un seuil donné sont tels qu'il interrompent aussi l'action des moyens (10 à 17) de chauffage lorsque la pression du gaz de pétrole liquéfié dans la bouteille devient inférieure à une valeur limite inférieure au seuil donné. 9. Device one of the preceding claims, characterized in that the means (8) intended to interrupt the action of the heating means (10 to 17) when the pressure of the liquefied petroleum gas in the bottle (1) reaches a given threshold are such that they also interrupt the action of the heating means (10 to 17) when the pressure of the liquefied petroleum gas in the bottle becomes below a limit value below the given threshold.
10. Procédé d'alimentation en gaz de pétrole liquéfié en phase gazeuse, à partir d'une bouteille de gaz de pétrole liquéfié, qui consiste à chauffer la bouteille, caractérisé en ce qu'il consiste à interrompre le chauffage lorsque la pression du gaz de pétrole liquéfié dans la bouteille atteint un seuil donné. 10. A method of supplying liquefied petroleum gas in the gas phase from a bottle of liquefied petroleum gas, which consists in heating the bottle, characterized in that it consists in interrupting the heating when the pressure of the gas of liquefied petroleum in the bottle reaches a given threshold.
EP00901688A 1999-02-25 2000-02-01 Liquid petroleum gas burner heating device and method for supplying liquid petroleum gas Expired - Lifetime EP1075622B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI200031005T SI1075622T1 (en) 1999-02-25 2000-02-01 Liquid petroleum gas burner heating device and method for supplying liquid petroleum gas

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9902343 1999-02-25
FR9902343A FR2790307B1 (en) 1999-02-25 1999-02-25 LIQUEFIED PETROLEUM GAS SUPPLY APPARATUS WITH HEATING MEANS
PCT/FR2000/000227 WO2000050804A1 (en) 1999-02-25 2000-02-01 Liquid petroleum gas burner heating device and method for supplying liquid petroleum gas

Publications (2)

Publication Number Publication Date
EP1075622A1 true EP1075622A1 (en) 2001-02-14
EP1075622B1 EP1075622B1 (en) 2008-08-27

Family

ID=9542516

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00901688A Expired - Lifetime EP1075622B1 (en) 1999-02-25 2000-02-01 Liquid petroleum gas burner heating device and method for supplying liquid petroleum gas

Country Status (10)

Country Link
EP (1) EP1075622B1 (en)
AT (1) ATE406542T1 (en)
AU (1) AU2300900A (en)
DE (1) DE60040037D1 (en)
DK (1) DK1075622T3 (en)
ES (1) ES2307492T3 (en)
FR (1) FR2790307B1 (en)
PT (1) PT1075622E (en)
SI (1) SI1075622T1 (en)
WO (1) WO2000050804A1 (en)

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
DE754458C (en) * 1943-12-04 1953-08-03 Elektro Thermit Gmbh Process for increasing the vapor pressure of liquid gases stored in steel cylinders
FR2354507A1 (en) * 1976-06-11 1978-01-06 Antargaz Power generator fuel supply system - uses fluid in engine cooling circuit to heat fuel container to maintain gas level
DE2650880C2 (en) * 1976-11-06 1986-04-03 Linde Ag, 6200 Wiesbaden Device for withdrawing gases from cylinders
DE2851862A1 (en) * 1978-11-30 1980-06-04 Linde Ag METHOD FOR TAKING GASES FROM CONTAINERS
DE3042944A1 (en) * 1980-11-14 1982-07-01 Linde Ag, 6200 Wiesbaden METHOD AND DEVICE FOR PROVIDING A GAS
US5557940A (en) * 1995-10-27 1996-09-24 Hendricks; Roger G. Portable heating unit for on-site charging of a cooling unit
US5761911A (en) * 1996-11-25 1998-06-09 American Air Liquide Inc. System and method for controlled delivery of liquified gases

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0050804A1 *

Also Published As

Publication number Publication date
SI1075622T1 (en) 2008-12-31
WO2000050804A1 (en) 2000-08-31
PT1075622E (en) 2008-12-11
FR2790307B1 (en) 2001-04-06
ATE406542T1 (en) 2008-09-15
FR2790307A1 (en) 2000-09-01
AU2300900A (en) 2000-09-14
DE60040037D1 (en) 2008-10-09
EP1075622B1 (en) 2008-08-27
ES2307492T3 (en) 2008-12-01
DK1075622T3 (en) 2008-10-20

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