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 gasInfo
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS 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
- F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
- F17C7/02—Discharging liquefied gases
- F17C7/04—Discharging liquefied gases with change of state, e.g. vaporisation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS 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
- F17C2270/00—Applications
- F17C2270/07—Applications for household use
- F17C2270/0745—Gas 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
Description
Claims
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)
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 |
-
1999
- 1999-02-25 FR FR9902343A patent/FR2790307B1/en not_active Expired - Fee Related
-
2000
- 2000-02-01 DE DE60040037T patent/DE60040037D1/en not_active Expired - Fee Related
- 2000-02-01 DK DK00901688T patent/DK1075622T3/en active
- 2000-02-01 SI SI200031005T patent/SI1075622T1/en unknown
- 2000-02-01 AT AT00901688T patent/ATE406542T1/en not_active IP Right Cessation
- 2000-02-01 ES ES00901688T patent/ES2307492T3/en not_active Expired - Lifetime
- 2000-02-01 EP EP00901688A patent/EP1075622B1/en not_active Expired - Lifetime
- 2000-02-01 AU AU23009/00A patent/AU2300900A/en not_active Abandoned
- 2000-02-01 WO PCT/FR2000/000227 patent/WO2000050804A1/en active IP Right Grant
- 2000-02-01 PT PT00901688T patent/PT1075622E/en unknown
Non-Patent Citations (1)
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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