KR101487242B1 - Combustion Apparatus - Google Patents

Abstract

According to the present invention, a combustion apparatus includes: a fuel storage thank to store a fuel; a combustor having a given length and connected to the fuel storage tank by a pipe to receive and combust the fuel; a blower provided on one end of the combustor to supply air to the combustor; and a flame plate provided on an upper portion of the combustor in a longitudinal direction to completely combust the air incompletely combusted by the combustor. The combustor is formed with a groove in the longitudinal direction thereof, and has an ignition heater provided in the groove in the longitudinal direction to generate heat, an ignition wick provided on the ignition heater to absorb the fuel and be fired by the heat, and a pair of combustion wicks provided in the longitudinal direction to be spaced apart from the ignition wick at a given interval to combust the fuel.

Description

Combustion Apparatus

The present invention relates to a combustion apparatus, and more particularly, to a combustion apparatus capable of efficiently burning a fuel oil having a relatively high flash point, such as a liquid animal or vegetable oil, which is hard to ignite and has a high viscosity and generates a large amount of tar.

Global warming is accelerating with the increase of carbon dioxide generated by the use of fossil fuels. As fossil fuels become depleted, interest in alternative energy that can replace fossil fuels is increasing.

This interest in alternative energy has led to the term green growth.

Green growth means saving energy and resources, reducing climate change and environmental degradation, making energy self-reliance, clearing the economic crisis through research and development of clean energy and green technology, and creating new growth engines and jobs. The concept of green growth was first mentioned by the Economist in January 2000 and has become widely used throughout the Davos Forum.

In 2005, the Seoul Initiative for Green Growth was adopted at the Ministerial Conference on Environment and Development in the Asia-Pacific (MECD), and the discussions took place at the United Nations Economic and Social Commission for Asia and the Pacific (UNESCAP).

The policy direction for green growth is to reduce greenhouse gas emissions, enhance oil independence and self-reliance, enhance adaptation capacity for climate change (climate change adaptation and energy independence), green technology development and growth engineization, greening of industries and green industry development (The creation of a new growth engine), the creation of green land and green transportation, the green revolution of life, and the implementation of a world-class model of green growth (improving quality of life and strengthening national status).

As the interest in green growth grows, efforts are being made to use environmentally-friendly liquid-phase flora and fauna as fuel for combustion devices, rather than conventional fossil fuels.

In the case of fossil fuels, carbon dioxide is emitted when it is burned, and the emitted carbon dioxide is causing global warming. Of course, vegetable oil also releases carbon dioxide when it is burned. However, when the plant that is the raw material of vegetable oil grows, it absorbs atmospheric carbon dioxide. Therefore, when the vegetable oil burns and the carbon dioxide absorbed when the plant grows, The amount of carbon dioxide produced by the reaction can be regarded as zero.

Despite these advantages, liquid flora and fauna has not been used as a fuel for combustion devices. The reason for this is that in order to use the fuel channel generally, the ignitability should be good, and the viscosity should be low enough to cause swelling. However, the liquid animal or vegetable oil has high ignition point because of high ignitability and high viscosity. In order to use liquid or liquid animal or vegetable oil as a fuel flow channel, it is necessary to process the liquid animal or vegetable oil so as to have a low viscosity, and it takes a lot of cost to process the liquid animal or vegetable oil, which is not economical.

Therefore, it is inevitable that development of a combustion apparatus capable of using as a fuel oil without processing a liquid animal or vegetable oil having a high ignition property and a high viscosity is desperately needed.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a combustion apparatus which has a high ignition point and is easy to ignite liquid animal or animal matter with poor ignitability.

Another object of the present invention is to provide a combustion apparatus capable of reducing the amount of tar generation by causing complete combustion of the liquid animal or vegetable oil.

It is another object of the present invention to provide an industrial combustion apparatus capable of simultaneously supplying a large amount of thermal power in a large space such as a factory, a vinyl house, and a cogeneration power plant.

According to an aspect of the present invention, there is provided a combustion apparatus comprising: a fuel storage for storing fuel; a combustor connected to the fuel reservoir through a pipe, A flame plate provided at one end of the combustor and supplying air to the combustor; and a flame plate provided in the longitudinal direction of the combustor so as to completely burn the incompletely burnt flame or gas into the flame, The combustor includes a groove formed in the longitudinal direction of the combustor, an ignition heater provided in the longitudinal direction of the groove to generate heat, and a heater disposed on the ignition heater for absorbing the fuel, Wherein the ignition core is provided with a core for ignition, It is provided may be provided with a pair of the wick for combustion for combusting the fuel.

Wherein the combustor further comprises a combustion chamber in which fuel supplied from the fuel reservoir is burnt, and an air supply chamber for supplying air to the combustion chamber by receiving air from the blower, wherein the air supply chamber is provided between the air supply chamber and the combustion chamber A plurality of air holes may be formed to supply air of the air supply chamber so that the fuel is burned efficiently.

The combustor may include an inner wall having a plurality of air holes formed in a side surface thereof and an outer wall spaced apart from the inner wall by a predetermined distance from the inner wall to form the air supply chamber together with the inner wall.

The air hole may be formed on the lower side of the inner wall, and may include a primary combustion air hole for supplying air for primarily burning fuel in the combustion chamber.

The air hole may be formed on the opposite side of the upper portion of the primary combustion air hole, and may further include an air hole for secondary combustion to supply air for secondary combustion of the primary combusted fuel.

The air hole may be formed at a predetermined distance from the upper portion of the secondary combustion air hole, and may further include an air hole for flame alignment for aligning the flame burned in the combustion chamber to the center.

A fuel supply pipe extending from the groove, and a fuel adjusting device for adjusting the amount of fuel flowing into the combustor may be provided between the fuel supply pipe and the pipe.

The blower includes a blowing fan coupled to a motor shaft to generate wind, and a blowing duct for guiding the air blown from the blowing fan to the air supply chamber, wherein the blowing duct is provided with a through hole through which the fuel supplying pipe passes .

The flame plate is provided at an upper end of the combustor to completely re-heat the incompletely burnt gas in the combustor to completely burn the gas. The ceramic is formed to have a size smaller than the width of the combustion chamber to discharge the combusted gas from the combustor An outlet may be provided.

The pipe may be provided with a fuel pump for smoothly supplying the fuel to the combustor.

The combustion apparatus according to an embodiment of the present invention can easily ignite fuel such as liquid animal or plant oil having a high ignition point and having poor ignitability.

It is also possible to completely burn the fuel, such as liquid animal or animal oil, which is difficult to completely burn, thereby reducing the amount of tar generated.

In addition, by having a predetermined length, a large amount of thermal power can be supplied simultaneously in a large space such as a plant, a plastic house, and a cogeneration power plant.

1 is a schematic perspective view of a combustion apparatus according to an embodiment of the present invention;
2 is an enlarged perspective view of a combustor according to an embodiment of the present invention;
3 is a cross-sectional view of a combustor and a flame plate in accordance with an embodiment of the present invention.
4 is a perspective view of a blower according to an embodiment of the present invention;

Hereinafter, a combustion apparatus according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a perspective view of a combustor according to an embodiment of the present invention. FIG. 3 is a cross-sectional view of a combustor according to an embodiment of the present invention, Fig.

1 to 3, a combustion apparatus 10 according to an embodiment of the present invention includes a fuel reservoir 100 in which fuel is stored, a fuel reservoir 100 and a pipe 120, A blower 300 provided at one end of the combustor 200 to supply air to the combustor 200 and a blower 300 connected to the combustor 200 to supply the air to the combustor 200, And a flame plate 400 provided in the upper portion in the longitudinal direction to completely burn the incompletely burnt air in the combustor 200.

The fuel flow path used in the combustion apparatus 10 according to an embodiment of the present invention may be a fuel having a high viscosity such as liquid animal or vegetable oil (including waste cooking oil).

The fuel reservoir 100, in which the fuel oil is stored, is provided separately from the combustor 200. At this time, since the amount of the liquid fuel, such as animal or plant oil, is determined by the capacity of the fuel reservoir 100, the volume of the fuel reservoir 100 can be increased to fill a large amount of fuel at once.

The fuel reservoir 100 is connected to the combustor 200 through the pipe 120 so that the fuel oil stored in the fuel reservoir 100 is supplied to the combustor 200. At this time, the fuel reservoir 100 may be provided at a higher position than the combustor 200, so that the fuel oil stored in the fuel reservoir 100 may be supplied to the combustor 200 side naturally without a separate supply device.

The fuel reservoir 100 may further include a support 110 and may be supported by the support 110 so that the fuel reservoir 100 is disposed at a higher position than the combustor 200. [

The fuel pump 130 can be connected to the pipe 120 for supplying fuel of the fuel stored in the fuel reservoir 100 regardless of the position of the fuel reservoir 100.

In this embodiment, the fuel pump 130 is shown for supplying the fuel of the fuel stored in the fuel reservoir 100 smoothly. However, the fuel pipe 130 is not only the fuel pump 130 but also the fuel heating (not shown) (Not shown) may be connected and used.

The combustor 200 includes a groove 210 formed in the longitudinal direction of the combustor 200 and an ignition heater 280 provided in the longitudinal direction of the groove 210 to generate heat, (220a) provided at an upper portion of the combustion chamber (220a) for absorbing the fuel and ignited by the heat, and a heater (220a) provided in the longitudinal direction of the combustor (200) And a pair of combustion wicks 220b for burning.

The combustor 200 has a predetermined length and has a cylindrical shape whose one surface is opened as shown in the drawing. Since the combustor 200 has a predetermined length, a large amount of thermal power can be supplied at a time.

The combustor 200 may be provided in various forms including a linear type in accordance with the purpose of use or a place.

In this embodiment, the combustor 200 is shown as a cylinder, but the combustor 200 may have various shapes such as a polygonal shape as well as a cylinder.

A lower part of the combustor 200 is provided with a support member 200 for moving the combustor 200 when the combustion unit 10 is in operation so that the combustion unit 10 is stopped or the combustor 200 is not moved Not shown).

The combustor 200 includes an inner wall 260a forming the combustion chamber 230 and an outer wall 260b forming the air supply chamber 240 together with the inner wall 260a.

Fuel oil such as liquid animal or animal oil is supplied to the combustion chamber 230 and air is supplied to the air supply chamber 240 so that the fuel supplied to the combustion chamber 230 is efficiently burned.

A fuel supply pipe 270 made of a metal material is provided to extend into the groove 210 to supply fuel oil to the combustion chamber 230.

A fuel regulator 271 may be provided between the fuel supply pipe 270 and the pipe 120 to regulate the amount of fuel flowing from the fuel reservoir 100 to the combustor 200. Thus, the user can easily adjust the amount of fuel supplied to the combustor 200 from the fuel reservoir 100 only by the adjustment of the fuel regulator 271.

And an upper plate 261 continuously connected to the inner wall 260a and the outer wall 260b at an upper end of the air supply chamber 240 formed between the inner wall 260a and the outer wall 260b. The top plate 261 can improve the coupling force between the inner wall 260a and the outer wall 260b and the flame plate 400 to be described later can be coupled to the upper portion of the top plate 261. [

A first end plate 290a for blocking only the combustion chamber 230 is provided at one longitudinal end of the combustor 200 connected to one end of a blower 300 to be described later, A second end plate 290b is provided to prevent one end of the combustion chamber 230 and one end of the air supply chamber 240 from leaking out of the combustor 200.

At this time, the first end plate 290a is provided with a hole 291 for inserting a part of the fuel supply pipe 270 to supply fuel oil to the groove 210.

A groove 210 is formed in the longitudinal direction of the combustor 200 at the center of a bottom plate 262 connecting the inner wall 260a and the adjacent inner wall 260a. In the groove 210, an ignition heater 280 is provided in the longitudinal direction of the combustor 200 to generate heat using electricity or gas. In this embodiment, the ignition heater 280 is cylindrical, but the ignition heater 280 may have various shapes such as a polygonal shape as well as a cylinder.

The ignition heater 280 is provided at its upper portion with an ignition core 220a for igniting the combustion apparatus 10. [ The ignition wick 220a may ignite when the ignition heater 280 absorbs fuel oil contained in the groove 210 and receives heat of a certain temperature or more. More details of the ignition wick 220a will be described later.

Meanwhile, the bottom plate 262 is provided with a pair of combustion wicks 220b spaced apart from the ignition wick 220a by a predetermined distance. The combustion wick 220b is provided in the same shape and material as the ignition wick 220a.

The fuel oil supplied from the fuel reservoir 100 may be provided on the bottom surface of the bottom plate 262 including the groove 210. Therefore, since the combustion wick 220b also retains the state of absorbing the fuel oil, the fire attached to the ignition wick 220a is transferred to the combustion wick 220b, and as a result, a thermal power can be generated from the three wicks .

One end of the air supply chamber 240 is connected to the blower 300 to receive air from the blower 300.

By introducing air into the combustion chamber 230, the ignition core 220a installed in the combustion chamber 230 can be quickly ignited. Further, by supplying sufficient air to the inside of the combustion chamber 230, it is possible to prevent incomplete combustion of a fuel such as liquid animal or plant oil having a high viscosity.

A plurality of air holes 250 are formed in the inner wall 260a to improve the combustion efficiency in the combustion chamber 230 when the air is dispersed and supplied from the blower 300 to the combustion chamber 230. [

A primary combustion air hole 250a for supplying air for primarily burning the fuel inside the combustion chamber 230 is formed at the lower part of the inner wall 260a of one of the pair of inner walls 260a.

At this time, the primary combustion air hole 250a may be formed at a position that is less than 1/2 of the height of the combustion chamber 230 or at a position higher than the core. And may be spaced apart from the bottom plate 262 by a predetermined distance. When air is supplied into the combustion chamber 230 through the primary combustion air holes 250a, the air circulates along the inner wall surface of the combustion chamber 230 and is discharged to a lower position than the lower end of the primary combustion air holes 250a . Accordingly, air can be supplied to the ignition wick 220a located inside the combustion chamber 230, so that ignition of the fuel oil absorbed in the ignition wick 220a can be facilitated. In addition, by continuously supplying air to the ignition wick 220a, the fuel oil absorbed in the ignition wick 220a can be thermally decomposed.

A secondary combustion air hole 250b is formed in the upper portion of the primary combustion air hole 250a to supply air for secondary combustion of the primary combusted fuel. At this time, the secondary combustion air holes 250b may be formed at a height equal to or more than a half of the height of the combustion chamber 230.

Meanwhile, the secondary combustion air holes 250b may be formed in another inner wall 260a which is paired with the inner wall 260a in which the primary combustion air holes 250a are formed.

The reason why the secondary combustion air holes 250b are formed in a direction in which the primary combustion air holes 250a are not formed is to move in the combustion chamber 230 while forming a bend, So that the air inside the combustion chamber 230 can be circulated evenly.

The pyrolysis layer D is formed in the lower part of the combustion chamber 230 and the combustion layer C is formed in the upper part of the combustion chamber 230.

The thermal decomposition layer (D) is a layer in which the fuel oil absorbed in the ignition wick (220a) made of a ceramic fiber is decomposed by heat.

Describing the combustion process in the pyrolysis layer (D), the radiant energy of the ignition wick 220a of the ceramic fiber material is heated to lower the viscosity of the fuel oil into which the radiant energy is introduced, and the viscosity of the fuel oil is lowered by capillary phenomenon And is raised to the upper portion of the core 220a. As the temperature of the ignition core 220a increases, the fuel oil is easily pyrolyzed in the pyrolysis layer (D), and heat recirculation between the ignition core (220a) of the ceramic fiber material and the combustion flame is performed, The supply of air creates a high temperature flame.

The fuel oil pyrolyzed in the pyrolysis layer (D) by the air supplied from the primary combustion air hole (250a) is converted into gas and supplied to the combustion layer (C). The combustion layer C is a layer in which a hot gas is burnt, and the hot gas supplied from the pyrolysis layer (D) is mixed with air supplied from the secondary combustion air hole (250b) and burned. Therefore, it is possible to completely induce fuel induction such as liquid or liquid animal or vegetable oil having a high viscosity, and the amount of tar generation can be reduced.

On the other hand, on the upper side of the pair of inner walls 260a forming the combustor 200, a flame alignment air hole 250c is formed at a predetermined interval in the longitudinal direction. The flame alignment air holes 250c serve to align the flames ejected from the combustor 200 to the center.

Since the primary combustion air hole 250a and the secondary combustion air hole 250b are formed in the combustor 200, the flame does not rise in the vertical direction and is not ejected from the combustor 200, . In order to prevent the flame from being ejected in an oblique direction, air is injected toward the center of the combustor 200 through the flame alignment air hole 250c immediately before the flame is ejected from the combustor 200, ) In the center of the flame.

The ignition core (220a) is made of a non-combustible ceramic type fiber woven by crossing yarns horizontally and vertically on a lattice-type metal wire net. The transverse thread of the lower part of the fiber is removed by a predetermined height, Is formed. The reason for forming the wick legs 221 in the ignition wick 220a is that a part of the high temperature gas of the combustion layer C formed in the upper portion of the combustion chamber 230 circulates to the lower portion of the combustion wick, The viscosity of the fuel oil located at the lower portion of the combustion chamber 220a is lowered so that the fuel oil is quickly absorbed into the ignition wick 220a by a smooth capillary phenomenon.

Meanwhile, a flame plate 400 having a ceramic 410 for completely re-heating the incompletely burnt gas in the combustor 200 and an outlet 420 for discharging the burned air is provided in the upper portion of the combustor 200 Respectively.

The flame plate 400 can completely combust the incompletely burnt gas in the combustor 200 through a discharge port 420 narrower than the combustor 200 in a high temperature flame by converging the flame. Most of the discharged gas comes into contact with the ceramic 410 and then is discharged through the discharge port 420.

The ceramic discharged from the combustor 200 is heated once more by the radiant energy radiated from the ceramic 410 and is discharged from the combustor 200 to the incomplete combustion The gas can be completely burned by passing through the hot narrow outlet 420 by the flame plate 400.

Therefore, the liquid animal or plant oil can be completely burned even when the fuel flow path of the combustion apparatus 10 is used, so that the amount of tar generated upon incomplete combustion can be reduced.

On the other hand, a blower 300 for supplying air to the combustor 200 is installed at one end of the air supply chamber 240.

Hereinafter, the blower 300 for supplying air to the combustor 200 will be described in detail.

4 is a perspective view of a blower in accordance with an embodiment of the present invention.

4, the blower 300 according to an embodiment of the present invention includes a blowing fan 310 that generates wind by being coupled with a motor shaft, and a blower 310 that blows air blown from the blowing fan 310 to the air supply chamber 240. [ And a blowing duct 320 for guiding the blowing air to the blowing duct.

The blower 300 is coupled to the combustor 200 by a coupling member 340 such as a screw. On one side of the blowing duct 320, a through hole 321 through which the fuel supply pipe 270 passes is provided.

Therefore, air can be supplied to the air supply chamber 240 through the blowing duct 320, and fuel can be supplied to the combustion chamber 230 through the fuel supply pipe 270.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. Those skilled in the art, who understands the spirit of the present invention, can readily suggest other embodiments by adding, changing, deleting, adding, or the like of components within the scope of the same idea, I would say.

10: Combustion apparatus 100: Fuel reservoir
200: combustor 300: blower
400: Flame plate

Claims (10)

A fuel reservoir in which fuel is stored,
A combustor having a predetermined length and connected to the fuel reservoir by a pipe to receive fuel and burn fuel,
A blower provided at one end of the combustor to supply air to the combustor,
And a flame plate provided on an upper portion of the combustor in the longitudinal direction to completely burn the incompletely burned air in the combustor,
The combustor includes a groove formed in the longitudinal direction of the combustor, an ignition heater provided in the longitudinal direction of the groove to generate heat, and a valve disposed on the ignition heater for igniting the fuel, And a pair of combustion wicks provided in the longitudinal direction of the combustor so as to be spaced apart from the ignition wick by a predetermined distance to burn the fuel.
The method according to claim 1,
The combustor includes a combustion chamber in which fuel supplied from the fuel reservoir is burnt,
Further comprising an air supply chamber for supplying air from the blower to the combustion chamber,
Wherein a plurality of air holes are formed between the air supply chamber and the combustion chamber to supply air to the air supply chamber so that fuel supplied to the combustion chamber is efficiently burned.
3. The method of claim 2,
The combustor includes an inner wall having a plurality of air holes formed in a side surface thereof,
And an outer wall spaced apart from the inner wall by a predetermined distance from the inner wall to form the air supply chamber together with the inner wall.
The method of claim 3,
Wherein the air hole is formed on the lower side of the inner wall and includes a primary combustion air hole for supplying air for primarily burning fuel in the combustion chamber.
5. The method of claim 4,
Wherein the air hole is formed on the upper portion of the primary combustion air hole and further comprises an air hole for secondary combustion for supplying air for secondary combustion of the primary combusted fuel.
6. The method of claim 5,
Wherein the air hole is formed to have a predetermined gap at an upper portion of the secondary combustion air hole and further includes an air hole for flame alignment for centering the flame burned in the combustion chamber.
The method of claim 3,
And a fuel supply pipe of a metal material extending from the groove,
And a fuel regulating device is provided between the fuel supply pipe and the pipe to regulate the amount of fuel flowing into the combustor.
8. The method of claim 7,
The blower includes a blowing fan coupled to the motor shaft to generate wind,
And a blowing duct for guiding the air blown from the blowing fan to the air supply chamber,
Wherein the blowing duct is provided with a through hole through which the fuel supply pipe passes.
3. The method of claim 2,
Wherein the flame plate is provided at an upper end of the combustor and reheats the incompletely burnt gas in the combustor to completely burn the ceramic,
And a discharge port formed in the ceramic by a predetermined size smaller than the width of the combustion chamber and discharging the combusted gas from the combustor.
The method according to claim 1,
Wherein the pipe is provided with a fuel pump for smoothly supplying the fuel to the combustor.

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