RU2475678C1 - Multifuel heating furnace - Google Patents

Multifuel heating furnace Download PDF

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Publication number
RU2475678C1
RU2475678C1 RU2011132969/03A RU2011132969A RU2475678C1 RU 2475678 C1 RU2475678 C1 RU 2475678C1 RU 2011132969/03 A RU2011132969/03 A RU 2011132969/03A RU 2011132969 A RU2011132969 A RU 2011132969A RU 2475678 C1 RU2475678 C1 RU 2475678C1
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RU
Russia
Prior art keywords
combustion chamber
fuel
piston
heating furnace
furnace
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Application number
RU2011132969/03A
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Russian (ru)
Inventor
Андрей Геннадьевич Винников
Original Assignee
Андрей Геннадьевич Винников
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Publication date
Application filed by Андрей Геннадьевич Винников filed Critical Андрей Геннадьевич Винников
Priority to RU2011132969/03A priority Critical patent/RU2475678C1/en
Application granted granted Critical
Publication of RU2475678C1 publication Critical patent/RU2475678C1/en

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Abstract

FIELD: heating.
SUBSTANCE: multifuel heating furnace includes an axisymmetrical housing forming a combustion chamber, the design of which provides for creation of natural draft, a moving piston located in combustion chamber, and fuel supply means. Moving control piston divides the combustion chamber into above-piston and below-piston volumes and is brought into movement with external action; axisymmetrical sprayer is located inside the combustion chamber; combustion chamber design provides for stationary locations of gaseous, liquid and solid fuel supply/loading means.
EFFECT: possibility of simultaneous or alternating combustion of gaseous, liquid and solid fuel; widening control ranges of combustion processes; reducing excess consumption of fuel; reducing the percentage of unreacted hydrocarbons and other hazardous substances; reducing smoke formation in the room, furnace overheating and destruction of the flue gas duct.
7 cl, 4 dwg

Description

The present invention relates to household heating devices, primarily to heating devices - stoves used in remote areas.
It is well known household portable, stationary or collapsible (tourist) stoves used for space heating, cooking or combined - for various purposes, in which solid fuel is used to obtain heat (firewood, coal, peat, etc.), liquid fuel (fuel oil , diesel fuel, etc.); or gas: main, household, biogas. The vast majority of such furnaces both manufactured on an industrial scale and handicraft ("potbelly stoves") are designed to use only one type of fuel - solid, liquid or gaseous, which often limits the possibility of their use, for example, when moving construction crews, etc. P.
In addition, such furnaces have a low range of adjustment of combustion processes both in power and in the quality of the mixture, which leads to various negative consequences. Namely: a huge over-consumption of fuel, a very high percentage of unreacted hydrocarbons as soot and other harmful substances gets into the air in the area of the heater; smoke in the room, overheating of the furnace, destruction of the chimney pipe, etc. All these factors were taken into account and incorporated into the design of the proposed device.
The above furnaces can also be used for the disposal of domestic and industrial waste - the use of domestic and industrial waste as fuel is obvious when using heating furnaces in the woodworking industries, oil fields, gas production, etc.
As the closest analogue of the proposed device, a waste incinerator, known from the copyright certificate SU 1663320, published on July 15, 1991, is proposed. The furnace described in SU 1663320 is intended for the simultaneous burning of solid and liquid waste. To smooth out the pulsations that occur during the combustion of fuel and use this energy to mix the fuel in the combustion chamber, an arrangement of a piston freely moving under the influence of fuel pulsations is provided. The furnace described in SU 1663320 retains all the above disadvantages of furnaces and, in addition, is characterized by a complicated design, the efficiency of such a furnace can be possible only with the simultaneous use of liquid and solid fuels with the required parameters.
In turn, the present invention is aimed at eliminating the known disadvantages and allows us to offer a furnace that can be used for simultaneous or alternate combustion of gaseous, liquid and solid fuels, using simple, but effective controls for the combustion process.
The specified technical result is achieved when using a multi-fuel heating furnace, which includes an axisymmetric body forming a combustion chamber, the design of which provides for the creation of natural traction, a movable piston located in the combustion chamber, and means for supplying / storing fuel. According to the proposed invention, a movable control piston divides the combustion chamber into an over-piston and under-piston volume and is driven by an external action. An axisymmetric atomizer is located inside the combustion chamber, consisting of two coaxial cylindrical walls. The inner cylindrical wall of the sprayer has uniformly distributed round holes, the outer cylindrical wall has longitudinal, equally spaced grooves, oriented along the length of the cylinder.
The design of the combustion chamber provides for regular locations for the supply / storage of gaseous and solid fuels. The movable control piston itself consists of a central nickel, a ring located between the cylindrical walls of the atomizer and an outer ring located between the outer wall of the atomizer and the furnace body. Means for supplying / storing fuel can be: a pipe for supplying gaseous fuel to the lower part of the combustion chamber; a removable evaporation cavity for liquid fuel, located below the combustion chamber; at least one formed portion of the solid fuel placed inside the combustion chamber.
The proposed invention is illustrated by drawings.
Figure 1 - General arrangement of the furnace.
Figure 2 - scheme of operation when using gaseous fuel.
Figure 3 - scheme of operation when using liquid fuel.
Figure 4 - scheme of operation when using solid fuel.
A multi-fuel heating furnace includes an axisymmetric housing forming a combustion chamber (housing 1, volumes 6 and 8), the design of which provides for the creation of natural draft through a chimney 5 and an air intake 13. A movable, regulating annular piston 7 divides the combustion chamber into a super-piston 6 and under a piston 8 volume and is driven by external influence - in this case, by the hand for the transverse plate 4. Inside the combustion chamber is an axisymmetric burner, consisting of two coaxial cylindrical walls 2 and 2 1 . The piston 7 consists of a central nickel, a ring located between the cylindrical walls of the burner 2 and 2 1 , and a ring located between the outer wall of the spray gun 2 and the furnace body 1. The inner cylindrical wall 2 1 of the spray gun is provided with round holes, the outer cylindrical wall 2 is provided with cutouts oriented along its length. Means for supplying / storing fuel can be: pipe 13 1 (FIG. 2) for supplying gaseous fuel to the lower part of the combustion chamber; a removable evaporation cavity for liquid fuel 11 located below the combustion chamber; at least one formed portion of solid fuel 14 (FIG. 4) located inside the combustion chamber. Accordingly, the fuel supply can be combined depending on the purpose of use and the availability of available fuel.
When using gaseous fuel (figure 2), combustible gas, which can be used as main natural gas or biogas, is fed into the cavity 9 through the gas supply pipe 13 1 . The oxidizing agent is atmospheric air, is drawn in through the air intake 13 and then enters the space between the nozzles of the burner 2 and 2 1 , where secondary oxygen enrichment takes place. The final afterburning takes place in the combustion chamber, in the sub-piston space 8. Having given up most of the energy, the hot gases enter the smoke zone - the supra-piston space 6, from where they are removed by natural draft through the chimney 5. The volume of zone 8 is changed by the movement of the piston 7 by means of the handle 4, due to which it is limited the contact area of the hot gases with the walls of the combustion chamber, thereby allowing a variable degree of thermal loading to be obtained. The ignition system can be performed using a manual fuse (igniter channel not shown) or from an automatic starting device.
When using liquid fractions (Fig. 3), ignition is carried out through the shutter 12 in the evaporator bowl 11 or a starting device mounted in the evaporator crankcase. Saturation with fuel vapor occurs from the evaporator bowl 11. The burning, re-enriched mixture is fed into the volume 9 by natural draft, due to the vacuum transmitted from the chimney 5. Similarly, atmospheric air is sucked in through the air intake 13. In the inter-spray cavity of the burner, the burning mixture is finally saturated with atmospheric oxygen, from where it enters the volume 8, where the final combustion takes place, followed by removal to zone 6 and further into the chimney 5. The volume of the combustion chamber is controlled by the piston 7 by means of the handle 4, and accordingly total heat load of the furnace body (flame tubes of the hot water circuit).
When using solid fuel (figure 4) in the volume 8 of the combustion chamber is placed one or more servings of solid fuel 14, for example, sawdust, peat, capable of burning solid household waste. Through the air intake 13, the cavity 10 and the inter-spray space, the air enters the upper layers of the fuel, providing a combustion process. The piston 7 gradually lowers under its own weight as the fuel burns out. In cases of damp fuel or difficultly flammable waste, short-term, joint use of the “liquid” scheme of work and the “solid fuel” will be effective. For example, used oil and municipal solid waste can be burned together. Accordingly, other combinations of combined modes are possible depending on specific tasks or the availability of available fuel.
Thus, a simple and reliable multi-fuel, multi-purpose furnace has been proposed.

Claims (7)

1. A multi-fuel heating furnace, including an axisymmetric housing forming a combustion chamber, the design of which provides for the creation of natural traction, a movable piston located in the combustion chamber, a fuel supply means, characterized in that the movable control piston divides the combustion chamber into a piston and a piston volume and is provided driven by external influences, an axisymmetric atomizer is located inside the combustion chamber, regular locations are provided in the design of the combustion chamber means for supplying / filling gaseous, liquid and solid fuels.
2. A multi-fuel heating furnace according to claim 1, characterized in that the fuel supply means is a pipe for supplying gaseous fuel to the lower part of the combustion chamber.
3. A multi-fuel heating furnace according to claim 1, characterized in that the fuel supply means is a removable liquid fuel evaporation cavity located below the combustion chamber.
4. The multi-fuel heating furnace according to claim 1, characterized in that the fuel supply means is at least one formed portion of solid fuel placed inside the combustion chamber.
5. The multi-fuel heating furnace according to claim 1, characterized in that the axisymmetric atomizer consists of two coaxial cylindrical walls.
6. A multi-fuel heating furnace according to claim 1, characterized in that the inner cylindrical wall of the sprayer is provided with round holes, the outer cylindrical wall is equipped with cutouts oriented along its length.
7. The multi-fuel heating furnace according to claim 1, characterized in that the movable control piston consists of a central nickle, a ring located between the cylindrical walls of the atomizer, a ring located between the outer wall of the atomizer and the furnace body.
RU2011132969/03A 2011-08-08 2011-08-08 Multifuel heating furnace RU2475678C1 (en)

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RU2011132969/03A RU2475678C1 (en) 2011-08-08 2011-08-08 Multifuel heating furnace

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RU2011132969/03A RU2475678C1 (en) 2011-08-08 2011-08-08 Multifuel heating furnace

Publications (1)

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RU2475678C1 true RU2475678C1 (en) 2013-02-20

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2546683C1 (en) * 2013-12-26 2015-04-10 Александр Владимирович Дороженко Heating oven
RU171801U1 (en) * 2017-03-29 2017-06-16 Апетян Павел Мкртычевич FUEL PISTON
RU2651823C1 (en) * 2017-04-04 2018-04-24 Апетян Павел Мкртычевич Multifuel oven
RU2698360C1 (en) * 2019-01-14 2019-08-26 Вадим Михайлович Голубенко Universal air heating furnace
RU2698362C1 (en) * 2019-01-09 2019-08-26 Михаил Иванович Голубенко Universal air heating furnace
CN110375332A (en) * 2019-08-01 2019-10-25 天台婉枫电子有限公司 A kind of combustion apparatus suitable for pluralities of fuel alternate combustion

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1663320A1 (en) * 1989-06-14 1991-07-15 Московский научно-исследовательский и проектно-изыскательский институт "МосводоканалНИИпроект" Incenirator
RU12721U1 (en) * 1999-07-27 2000-01-27 Бочков Владимир Борисович Heating furnace
US20050279344A1 (en) * 2002-11-20 2005-12-22 Thermic Investments S.A. High output heating device
RU70966U1 (en) * 2007-06-18 2008-02-20 Юрий Степанович Левчук Multifunctional furnace

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1663320A1 (en) * 1989-06-14 1991-07-15 Московский научно-исследовательский и проектно-изыскательский институт "МосводоканалНИИпроект" Incenirator
RU12721U1 (en) * 1999-07-27 2000-01-27 Бочков Владимир Борисович Heating furnace
US20050279344A1 (en) * 2002-11-20 2005-12-22 Thermic Investments S.A. High output heating device
RU70966U1 (en) * 2007-06-18 2008-02-20 Юрий Степанович Левчук Multifunctional furnace

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2546683C1 (en) * 2013-12-26 2015-04-10 Александр Владимирович Дороженко Heating oven
RU171801U1 (en) * 2017-03-29 2017-06-16 Апетян Павел Мкртычевич FUEL PISTON
RU2651823C1 (en) * 2017-04-04 2018-04-24 Апетян Павел Мкртычевич Multifuel oven
WO2018186765A1 (en) * 2017-04-04 2018-10-11 АПЕТЯН, Павел Мкртычевич Multi-fuel stove
RU2698362C1 (en) * 2019-01-09 2019-08-26 Михаил Иванович Голубенко Universal air heating furnace
RU2698360C1 (en) * 2019-01-14 2019-08-26 Вадим Михайлович Голубенко Universal air heating furnace
CN110375332A (en) * 2019-08-01 2019-10-25 天台婉枫电子有限公司 A kind of combustion apparatus suitable for pluralities of fuel alternate combustion

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MM4A The patent is invalid due to non-payment of fees

Effective date: 20150809

NF4A Reinstatement of patent

Effective date: 20160720

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Effective date: 20160819