GB2461580A - A Heat-Storage Stove Burner - Google Patents

A Heat-Storage Stove Burner Download PDF

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Publication number
GB2461580A
GB2461580A GB0812392A GB0812392A GB2461580A GB 2461580 A GB2461580 A GB 2461580A GB 0812392 A GB0812392 A GB 0812392A GB 0812392 A GB0812392 A GB 0812392A GB 2461580 A GB2461580 A GB 2461580A
Authority
GB
United Kingdom
Prior art keywords
heat
burner unit
burner
cooking
water heating
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.)
Withdrawn
Application number
GB0812392A
Other versions
GB0812392D0 (en
Inventor
Mark Talbot
Terence Fox
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB0812392A priority Critical patent/GB2461580A/en
Publication of GB0812392D0 publication Critical patent/GB0812392D0/en
Publication of GB2461580A publication Critical patent/GB2461580A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B40/00—Combustion apparatus with driven means for feeding fuel into the combustion chamber
    • F23B40/06—Combustion apparatus with driven means for feeding fuel into the combustion chamber the fuel being fed along the fuel-supporting surface
    • F23B40/08—Combustion apparatus with driven means for feeding fuel into the combustion chamber the fuel being fed along the fuel-supporting surface into pot- or trough-shaped grates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B1/00—Combustion apparatus using only lump fuel
    • F23B1/30—Combustion apparatus using only lump fuel characterised by the form of combustion chamber
    • F23B1/38—Combustion apparatus using only lump fuel characterised by the form of combustion chamber for combustion of peat, sawdust, or pulverulent fuel on a grate or other fuel support
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B40/00—Combustion apparatus with driven means for feeding fuel into the combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B50/00—Combustion apparatus in which the fuel is fed into or through the combustion zone by gravity, e.g. from a fuel storage situated above the combustion zone
    • F23B50/12—Combustion apparatus in which the fuel is fed into or through the combustion zone by gravity, e.g. from a fuel storage situated above the combustion zone the fuel being fed to the combustion zone by free fall or by sliding along inclined surfaces, e.g. from a conveyor terminating above the fuel bed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
    • F23K3/10—Under-feed arrangements
    • F23K3/14—Under-feed arrangements feeding by screw
    • 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
    • F24B1/02—Closed stoves
    • F24B1/024—Closed stoves for pulverulent fuels
    • 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
    • F24B1/20—Ranges
    • F24B1/24—Ranges with built-in masses for heat storage or heat insulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/18—Water-storage heaters
    • F24H1/187—Water-storage heaters using solid fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/235—Temperature of exhaust gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/345—Control of fans, e.g. on-off control
    • F24H15/35—Control of the speed of fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/355—Control of heat-generating means in heaters
    • F24H15/36—Control of heat-generating means in heaters of burners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
    • F24H9/2057—Arrangement or mounting of control or safety devices for water heaters using solid fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2900/00—Special features of, or arrangements for incinerators
    • F23G2900/70—Incinerating particular products or waste
    • F23G2900/7012—Incinerating rice or grain husks, hulls or bran
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/06—Solid fuel fired boiler
    • F24D2200/065—Wood fired boilers
    • F24D2200/067—Pellet fired boilers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Solid-Fuel Combustion (AREA)

Abstract

A heat-storage stove burner unit is fuelled by a wood pellet/ grain store and an associated fuel feed system 'C'. The feed system may be either rotary or reciprocating, and may be driven by either electrical or hydraulic means. The burner unit may also include a fan assembly, and both the fan and a hydraulic pump may be driven by the same electric motor. The burner unit may include an air shutter arrangement 'B' and an associated phial 'A' arranged in a heated chamber. The phial may be connected by a capillary tube to the air shutter, such that it only opens when there is sufficient heat to heat the heat-storage stove. The heat-storage stove burner unit may also include suitable controls to ensure the efficient running of the burner, and may be used for cooking and/or water heating. The rotary fuel feed system may be an auger.

Description

Wood pellet and grain fired burner for insulated range type cookers.
This invention is related to heat-storage stoves such as are used for cooking and/or for water heating.
Examples of such stoves are AgaRayburriype insulated range cooker and water heating stoves which run mostly on gas, oil, coal and electricity. Our invention allows most cookers, existing and new, to run on wood pellets and grain.
These type of heat-storage stoves such as are used for cooking and/or for water heating, normally have a near constant heat source so the cooker stays the same temperature most of the time, it may be turned up for cooking but is very slow to react. The solid fuel AgRayburri''type insulated range cooker and water heating stoves have limited fuel supply so require constant maintenance.
However our invention is a burner unit, which sits beside the heat-storage stoves, such as are used for cooking and/or for water heating. It has a large wood pellet/grain hopper to store fuel, and has a fan blown wood pelletlgrain burner, the flue gases being blown in to the beat-storage stoves such as are used for cooking and/or for water heating, at a controlled rate. The controls on our burner enable it to react quickly and accurately to any heat requirement. This enables the appliance to run at a low temperature during off peak times, and high temperatures when required., giving a considerable reduction in fuel consumption.
Fig. 1 shows the burner, the existing heat-storage stoves such as are used for cooking and/or for water heating, and how they are coupled together.
Fig. 2 shows a grain/wood pellet burner with a reciprocating shutter feed mechanism.
A) Phial. B) Air shutter. C) Pellet feed.
Fig. 3 shows a grain/wood pellet burner with a rotating shutter feed mechanism. A) Rotary feed.
Fig. 4 shows a grain/wood pellet burner with an auger feed mechanism. A) Auger.
Fig. 5 shows the burner with an increased hopper capacity, and no hot plate.
Fig. 6 shows an external grain/wood pellet store hopper.
There are options of an additional hot plate, Fig. 2; or a larger pellet store, Fig5; and a remote pellet store, Fig 6.
There is the option of 2 types of control systems: System A) The hydraulically driven system.
The controls I;A Hydraulically driven pellet feed system. The hydraulic pump is driven by the same electric motor that drives the fan; this pellet system could either be a rotary feed, a reciprocating-shutter feed or an auger feed.
2; A Thermostat in the flue, measuring flue gas temperature, which controls the speed of the fan/hydraulic motor, which in turn controls the pellet feed and the fan.
3; A user-operated adjustable valve on the hydraulic feed system controls running temperature on the heat-storage stoves such as are used for cooking and/or for water heating.
4:There is a phial in the heat chamber connected by a capillary tube to the air shutter mechanism which allows the air shutter to open only when there is sufFient heat in the boiler to heat the heat-storage stoves such as are used for cooking and/or for water heating 5;An electrical time clock that allows the heat-storage stoves such as are used for cooking and/or for water heating, to run in idle mode during the night and off peak times to conserve fuel.
The hydraulic system will now will be described by means of the working cycle with the help of the working drawings. The hydraulic reciprocating-shutter feed system is used in this example, Fig 5 shows the rotary feed system and Fig 6 Shows the Auger fed system.
1;Lighting.The timer is turned on, the electrical motor drives both fan and hydraulic pump, which in turn drives the feeders and tips pellets into the grate, the igniters light pellets, the fire is alight. At this stage only enough air is blown in to the fire to maintain good combustion.
2;The Heating sequence. The fire heats up the burner box, which in turn heats up a phial connected to the air shutter on the burner. As the air expands in the phial the pressure opens the air shutter on the fan allowing hot air in to the heat-storage stoves such as are used for cooking andlor for water heating. See Fig 2. A) Phial. B) Shutter.
3;Cooker Temperature control. As the heat-storage stoves such as are used for cooking and/or for water heating heats up, and the flue gas temperature begins to rise, the thermostat in the flue controls the speed of the electric motor driving the fan and the pellet feed system. Ensuring that only limited heat is lost through the flue to stop any condensation and to maintain fire.
4; Running The valve on the hydraulic feed system controls running temperature on heat-storage stoves such as are used for cooking and/or for water heating.
5; Sleep Mode. To set the heat-storage stoves such as are used for cooking and/or for water heating in off peak mode, the timer is set to maintain minimal combustion via a thermostatically controlled cycle.
System B) The Electrically operated system, A variable speed electrical motor drives a wood pellet feed system. This could be either rotary feed, reciprocating-shutter feed or auger feed system.
A variable speed electrical fan or shutter fan system provides regulated airflow for the burner.
Sensors in the heat-storage stoves such as are used for cooking and/or for water heating, and the burner, regulate both fan and feed systems.
The electrically operated system will now be described by means of working cycle.
1;Lighring The heat-storage stoves such as are used for cooking and/or for water heating is switched on; the feed motor drives grain/wood pellets in to the burner; the fan starts and the igniters light fire.
2;The Heating sequence. The sensors in the burner compartment react to the rise in temperature; the fan speed increases to send heat in to the heat-storage stoves such as are used for cooking and/or for water heating.
3;Cooker Temperature control. The Sensors in the heat-storage stoves such as are used for cooking and/or for water heating, react to temperature change, and control fan and feed systems through a central electrical control system (PCB).

Claims (9)

  1. Claims 1. A burner unit that heats heat-storage stoves such as are used for cooking and/or for water heating.
  2. 2. A burner unit, according to claim 1, which burns grain.
  3. 3. A burner unit, according to claim 1, which burns wood pellets.
  4. 4. A burner unit, with a hydraulically driven mechanism, according to claims 1,2 and 3.
  5. 5. A burner unit fed by a reciprocating shutter mechanism, according to claims 1,2 and 3.
  6. 6. A burner unit fed by a rotating shutter mechanism, according to claims 1,2 and 3.
  7. 7. A burner unit fed by an auger mechanism, according to claims 1, 2 and 3.
  8. 8. A burner unit fed by an electrically driven mechanism, according to claims 1,2,3,4,5 and 6.
  9. 9. An air shutter controlled by a capillary phial according to claims 1,2,3,4,5,6,7 and 8.
GB0812392A 2008-07-05 2008-07-05 A Heat-Storage Stove Burner Withdrawn GB2461580A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0812392A GB2461580A (en) 2008-07-05 2008-07-05 A Heat-Storage Stove Burner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0812392A GB2461580A (en) 2008-07-05 2008-07-05 A Heat-Storage Stove Burner

Publications (2)

Publication Number Publication Date
GB0812392D0 GB0812392D0 (en) 2008-08-13
GB2461580A true GB2461580A (en) 2010-01-06

Family

ID=39718088

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0812392A Withdrawn GB2461580A (en) 2008-07-05 2008-07-05 A Heat-Storage Stove Burner

Country Status (1)

Country Link
GB (1) GB2461580A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011161268A2 (en) 2010-06-26 2011-12-29 Ungaro Srl Cooking and heating stove fuelled by pellet or biomass grain apt to cook and to heat water for domestic heating

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB261777A (en) * 1925-11-19 1928-05-21 Theodor Popescu Heating devices with heat accumulators
GB509941A (en) * 1938-02-10 1939-07-25 Parkinson Stove Co Ltd Improvements in or relating to burners for gas-fires and the like
GB1249165A (en) * 1969-06-02 1971-10-06 Kin Hip Metal Plastic Improvements in or relating to spirit stoves
GB1415776A (en) * 1972-05-29 1975-11-26 Brohltal Deumag Ag Burner for blast heating apparatus
DE3043458A1 (en) * 1980-11-18 1982-07-01 Gottschall & Sohn, 4000 Düsseldorf Blown-gas fired burner with motor-driven impeller - has fan motor driving hydraulic pump to open air intake shutter against spring
US5522696A (en) * 1995-01-04 1996-06-04 Aqua-Chem, Inc. Multiple-shutter throttle characterization assembly for burners
US20040129262A1 (en) * 2001-05-18 2004-07-08 Paulu Pieti Burner for solid fuel
WO2008043920A2 (en) * 2006-10-12 2008-04-17 Entreprise Ronot Cereal burner

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB261777A (en) * 1925-11-19 1928-05-21 Theodor Popescu Heating devices with heat accumulators
GB509941A (en) * 1938-02-10 1939-07-25 Parkinson Stove Co Ltd Improvements in or relating to burners for gas-fires and the like
GB1249165A (en) * 1969-06-02 1971-10-06 Kin Hip Metal Plastic Improvements in or relating to spirit stoves
GB1415776A (en) * 1972-05-29 1975-11-26 Brohltal Deumag Ag Burner for blast heating apparatus
DE3043458A1 (en) * 1980-11-18 1982-07-01 Gottschall & Sohn, 4000 Düsseldorf Blown-gas fired burner with motor-driven impeller - has fan motor driving hydraulic pump to open air intake shutter against spring
US5522696A (en) * 1995-01-04 1996-06-04 Aqua-Chem, Inc. Multiple-shutter throttle characterization assembly for burners
US20040129262A1 (en) * 2001-05-18 2004-07-08 Paulu Pieti Burner for solid fuel
WO2008043920A2 (en) * 2006-10-12 2008-04-17 Entreprise Ronot Cereal burner

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
http://www.chaseheating.co.uk/rayburn_heatranger_345w_wood_burning_range_cooker.asp *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011161268A2 (en) 2010-06-26 2011-12-29 Ungaro Srl Cooking and heating stove fuelled by pellet or biomass grain apt to cook and to heat water for domestic heating

Also Published As

Publication number Publication date
GB0812392D0 (en) 2008-08-13

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