Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
  • F23D—BURNERS
  • F23D5/00—Burners in which liquid fuel evaporates in the combustion space, with or without chemical conversion of evaporated fuel
  • F23D5/12—Details
  • F23D5/123—Inserts promoting evaporation
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
  • F23D—BURNERS
  • F23D5/00—Burners in which liquid fuel evaporates in the combustion space, with or without chemical conversion of evaporated fuel
  • F23D5/02—Burners in which liquid fuel evaporates in the combustion space, with or without chemical conversion of evaporated fuel the liquid forming a pool, e.g. bowl-type evaporators, dish-type evaporators
  • F23D5/04—Pot-type evaporators, i.e. using a partially-enclosed combustion space
  • F23D5/045—Pot-type evaporators, i.e. using a partially-enclosed combustion space with forced draft
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F24—HEATING; RANGES; VENTILATING
  • F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
  • F24B1/00—Stoves or ranges
  • F24B1/18—Stoves with open fires, e.g. fireplaces
  • F24B1/1802—Stoves with open fires, e.g. fireplaces adapted for the use of both solid fuel and another type of fuel or energy supply 

Definitions

• the present invention relates to a gasification burner and its supply, adaptable to a closed hearth chimney, making it possible to transform this wood chimney into a liquid fuel chimney.
• the device according to the invention overcomes these drawbacks, for example for a power of 2 to 14 kw. It includes two separate parts: The first part is the fuel supply device.
• This device includes a conventional supply (mini-tank, filter, solenoid valves, constant level tank), an air-liquid separator, and a double-walled inclined tube, the final end of which ends in two bent down tubes, small diameter, separated by a few millimeters, penetrates inside the chimney through the rear base of the outlet and arrives vertically from the center of the burner.
• a conventional supply mini-tank, filter, solenoid valves, constant level tank
• an air-liquid separator a double-walled inclined tube, the final end of which ends in two bent down tubes, small diameter, separated by a few millimeters, penetrates inside the chimney through the rear base of the outlet and arrives vertically from the center of the burner.
• the external part of the tube chimney includes a cross allowing filling with distilled water, through a transparent flexible tube to control the water level, and continuous pressure control, by a conventional pressure gauge; the whole forming a sealed radiator for cooling the internal part.
• the internal part of the chimney of the tube is held by a larger tube, terminated by a vertical descending part protecting the combustible liquid after it leaves the supply tube.
• this tube can be doubled by a tube of larger diameter or in its vertical part by an air-water heat recovery cooler of suitable shape. This tube can pivot inside its support around the supply tube, in order to free the hearth, for example during periods of use with wood.
• the continuous slope of the double tube allows on the one hand the flow, by gravity of the liquid fuel in the internal tube of small diameter, and on the other hand, the cooling of this same fuel by the heat pipe effect of demineralized water located in the outer tube surrounding the fuel. Water flows through the tube and cools the injector tube.
• the second part ensuring combustion is the assembly placed in the center of the fireplace.
• This set has two separate parts.
• the first is the box supplying the fresh air necessary for combustion.
• This box has a shape adapted to each type of chimney in order to match the air inlet of the chimney to the air inlet of the box.
• This box contains a flat axial fan with a vertical axis, corresponding to the axis of fall of the liquid; this variable speed fan can be a low voltage fan.
• the second part is the hearth proper, placed on a circular support stamped vertically from the fan, abutting on two rear adjustment screws located at 120 ° from one another.
• an evaporator receptacle having the shape of a "Mexican hat" in one piece or in two parts.
• the conical part at a slight angle at the top, receives the drops of fuel liquid and prevents them from spurting into the burner.
• the receptacle preferably made of ceramic glass, is easy to clean. Its centering is ensured by a circular part provided with six rods, or by a stamping at the bottom of the burner.
• a central tube protects the drops of fuel liquid from direct contact with the flames.
• the simplest construction includes the central envelope with bottom, all in metal, placed on the outer envelope in transparent glass ceramic.
• An intermediate piece provides support and centering.
• the burn pot can be a commercial stamp, such as a pressure cooker.
• the outer casing makes it possible to see the reddening of the pot and the punctual combustion, through the air injection holes of the pot.
• the most sophisticated construction includes the two transparent glass-ceramic casings, which allow a total view of the combustion.
• thermocouples in the upper part of the hearth, ensure the safety of the system, by acting on two normally closed solenoid valves, placed in series on the fuel circuit.
• a contactor allows the two solenoid valves to be opened at the time of ignition.
• Gravity feed can also be replaced by a system using a variable flow micro-pump.
• the air-liquid separator is no longer necessary.
• the complete burner-fuel supply assembly can be an independent heating system, without necessarily being installed in a chimney.
• All elements will be made of corrosion resistant materials, for example: - accessories before injector tube: copper.
• fireplace components refractory or glass ceramic stainless steel, stainless steel.
• - reflective screen polished aluminum.
• the modular construction allows easy exchange of certain parts.
• the internal elements of the pot being simply placed in this pot, and the latter being posed without attachment to the box, it follows very easy handling for easy cleaning of the hearth.
• the end of the fuel injector tube being located at the bottom of the vertical protective tube, it is not reached by the combustion products and thus remains clean for a very long time. This end being terminated by two bent downward tubes of small diameter, the flow of fuel is done without dispersion whatever the displayed flow rate (within the limits initially set).
• an additional fuel such as methylated spirits
• FIG 1 shows the general diagram of the installation.
• Figure 2 shows the fuel supply device.
• Figure 3 shows in left half-section, the burner and its accessories, with metallic inner wall and outer wall in transparent glass ceramic and in right half-section, a variant with two walls in transparent glass ceramic.
• FIG. 4 shows in section the air-water heat recovery cooler (without its support or its connections).
• the device comprises:
• a fuel inlet 1 with its various accessories, an air-liquid separator 2, a small diameter injector tube 3, a cooler tube 4 with its axial stop, a pressure gauge 5, a transparent tube 6, a filling tap 7, a leveling and air pressure fitting valve 8, the wall of the chimney flue 9, a support 10 fixed to the flue by screws 11 plus springs 12, a two-part holding and protection tube 13, a centering system 14, a centering system 15, a protective tube 16, a centering system 17, a protective tube 18 with its retaining screws 19, two seals 29, one double outlet angled downwards 30.
• FIG. 3 left side, an air intake box, hearth support 20, a fan 22, a deflector 23, a heat shield 24, support legs 25, a burn pot 26 with its holes air injection at different levels, a receptacle 27, a stamped horizontal disc 28, gri-Uage discs or expanded metal or perforated sheet metal 31 (number depends on the type of burner), a tube 32, a stamped circular support 33, peripheral spacers 34 on axes 35, vertical peripheral radial fins 36, a stamped crown 37, a transparent glass-ceramic tube 38, two safety thermocouples 39 and according to variant, FIG.

Landscapes

• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Evaporation-Type Combustion Burners (AREA)
• Solid-Fuel Combustion (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=9534814

Family Applications (1)

Country Status (5)

Families Citing this family (4)

Family Cites Families (4)

• 1998
  • 1998-12-31 FR FR9816790A patent/FR2788107B1/fr not_active Expired - Fee Related
• 1999
  • 1999-12-17 WO PCT/FR1999/003194 patent/WO2000040899A1/fr not_active Application Discontinuation
  • 1999-12-17 AU AU16651/00A patent/AU1665100A/en not_active Abandoned
  • 1999-12-17 EP EP99959497A patent/EP1147340A1/de not_active Withdrawn
• 2001
  • 2001-06-22 US US09/887,316 patent/US20010044088A1/en not_active Abandoned

Non-Patent Citations (1)

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