KR101254192B1 - Combustion apparatus - Google Patents

Abstract

PURPOSE: A combustion device is provided to form multiple air holes for supplying air between an air supply chamber and a combustion chamber in order to efficiently combust fuel supplied to the combustion chamber, thereby easily igniting liquid animal/vegetable oils. CONSTITUTION: A combustion device includes a fuel storing unit, a combustor(120), a blower(130), a fuel supply pipe, and a fuel control unit. The fuel control unit is installed on the fuel supply pipe, and controls the amount of fuel supplied to the combustor. The combustor includes an inner wall(121) forming a combustion chamber(120a), and an outer wall(122) forming an air supply chamber(120b) with the inner wall. The air supply chamber is supplied with air from the blower, and supplies the air to the combustion chamber. Multiple air holes for supplying the air are formed between the air supply chamber and the combustion chamber so that the fuel supplied to the combustion chamber can be efficiently combusted.

Description

Combustion Apparatus

The present invention relates to a combustion apparatus, and more particularly, to a combustion apparatus capable of efficiently combusting fuel oil, which has a high flash point, having a high flash point and high viscosity, such as a liquid animal or vegetable oil, having a high tar.

Global warming is rapidly progressing due to the increase in carbon dioxide generated by the use of fossil fuels, and as fossil fuels are depleted, interest in alternative energy that can replace fossil fuels is increasing.

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

Green growth is a concept of saving energy and resources and using it efficiently to reduce climate change and environmental damage, achieve energy independence, and overcome economic crisis and create new growth engines and jobs through research and development of clean energy and green technology. The concept of green growth was first mentioned by the Economist in January 2000 and began to be widely used through the Davos Forum.

The 2005 Seoul Initiative for Green Growth (SI) was adopted at the Ministerial Meeting on the Environment and Development of Asia-Pacific (MECD), and discussions were in full swing at the UN Asia-Pacific Economic and Social Commission (UNESCAP).

The policy directions for green growth include efficient greenhouse gas reduction, reinforcement of de-oil and energy independence, climate change adaptation capacity (adaptation of climate change and energy independence), green technology development and growth engine, greening of industry and nurturing green industry. To enhance the industrial structure, create a foundation for green economy (creating a new growth engine), create a green land and green transportation, green revolution in life, and implement a global green growth model country (improving quality of life and strengthening national status).

As interest in green growth grows, efforts are being made to use environmentally friendly liquid animal and vegetable oils rather than conventional fossil fuels for fuels used in combustion devices.

In the case of fossil fuels, carbon dioxide is emitted when it is burned, and the emitted carbon dioxide causes global warming. Of course, even in the case of vegetable oil, carbon dioxide is emitted when it is burned, but since the plant, which is a raw material of the plant oil, absorbs carbon dioxide in the atmosphere, the carbon dioxide generated when the vegetable oil is burned and the carbon dioxide absorbed when the plant is grown are substantially reduced through the vegetable oil. The amount of carbon dioxide produced can be seen as zero.

Despite these advantages, liquid animal and vegetable oils have not been used as fuel for combustion devices. The reason is that in order to use as fuel oil in general, the ignition property should be good and the viscosity is low enough to slump, but liquid animal and vegetable oil has a high ignition point is not a good ignition property and a high viscosity has a large amount of tar generated. In order to use liquid animal and vegetable oil as fuel oil, the liquid animal and vegetable oil must be processed to have a low viscosity. However, it is not economical because the liquid animal and animal oil is expensive to process.

Therefore, it is time to develop a combustion apparatus that can be used as fuel oil without processing complex animal oil of liquidity having high ignition and high viscosity.

Republic of Korea Patent Registration No. 10-0908899

The present invention is to solve the above problems, it is an object of the present invention to provide a combustion apparatus that can easily ignite the liquid animal and vegetable oils having a high ignition point is not good ignition.

Another object of the present invention is to provide a combustion apparatus that can reduce the amount of tar generated by allowing the liquid animal and animal oil to be completely burned.

Still another object of the present invention is to provide a combustion apparatus capable of preventing a combustor from being heated by supplying an appropriate amount of liquid animal and vegetable oil to the combustor.

According to an aspect of the present invention, there is provided a combustion apparatus comprising: a fuel reservoir for storing fuel, a combustor configured to combust fuel by receiving fuel from the fuel reservoir, a blower for supplying air to the combustor, and fuel stored in the fuel reservoir; And a fuel supply pipe for supplying fuel to the combustor, and fuel control means installed on the fuel supply pipe to regulate an amount of fuel supplied to the combustor, wherein the combustor combusts the fuel supplied from the fuel reservoir. And a combustion chamber configured to receive air from the blower and supply air to the combustion chamber, and a plurality of air supplying air to efficiently burn fuel supplied to the combustion chamber between the air supply chamber and the combustion chamber. Holes are formed.

The combustor may include an inner wall forming the combustion chamber and the plurality of air holes formed therein, and an outer wall provided outside the inner wall to form the air supply chamber together with the inner wall.

A blower tube may be provided to connect the blower and the outer wall so that the air blown from the blower is supplied to the air supply chamber, and an air supply hole through which the blower tube is connected to supply air may be formed under the outer wall.

The air hole may be formed at a position facing the air supply port, and may include a primary combustion air hole for supplying air for primary combustion of fuel in the combustion chamber.

The air hole may be further formed on an upper portion of the primary combustion air hole, and may further include a secondary combustion air hole for supplying air for secondary combustion of the primary burned fuel.

The air hole may be formed to have a predetermined interval in the circumferential direction of the inner wall in the upper portion of the secondary combustion air hole, and may further include a flame alignment air hole for aligning the flame burned in the combustion chamber to the center.

A combustion wick accommodated in the combustion chamber and absorbing fuel supplied to the combustion chamber to catch fire, and a handle extending in one direction from the combustion wick so that a user can pull the combustion wick out of the combustion chamber; Can be.

The combustion wick may be formed of a woven fiber intersecting the yarn horizontally and vertically to form a wick leg by the remaining vertical yarn by removing the horizontal yarn under the fiber by a predetermined height.

It may further include a wick support frame formed of a network having perforations to support the combustion wick.

It may further include a power switch for turning on and off the blower.

The fuel control means includes a case forming a through hole through which the fuel supply pipe penetrates, a pressurizing member accommodated in the through hole and in close contact with one side of the fuel supply pipe to apply pressure to the fuel supply pipe, and to the case. It may be provided to be retractable and may be provided with a control member for applying pressure to the pressure member.

A portion of the fuel supply pipe to which the pressure member applies pressure may be provided with a protection member for preventing the fuel supply pipe from being damaged.

The fuel supply pipe may include a bent portion that is bent to be introduced into the combustion chamber, and the bent portion may be positioned above the fuel control means.

According to the combustion apparatus according to an embodiment of the present invention, it is possible to easily ignite a fuel such as a liquid animal or animal oil having a high ignition point and a poor ignition property.

In addition, it is possible to completely burn fuel such as liquid animal and vegetable oils that are difficult to burn completely, thereby reducing the amount of tar generated.

In addition, as the user operates the fuel control means, the appropriate amount of animal and animal oil can be supplied to the combustor, thereby preventing the combustor from being heated.

1 is an overall perspective view of a combustion apparatus according to an embodiment of the present invention.
2 is a perspective view of a combustor and a blower provided in the combustion device of FIG.
3 is an exploded perspective view of the combustor provided in the combustion device of FIG.
4 is a cross-sectional view of the combustor shown in FIG.
5 is an exploded perspective view of the fuel control means.

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

1 is a perspective view showing a combustion device according to an embodiment of the present invention.

Referring to FIG. 1, a combustion apparatus 100 according to an embodiment of the present invention includes a fuel reservoir 110 in which fuel is stored, and a combustor 120 configured to burn fuel by receiving fuel from the fuel reservoir 110. ), A blower 130 for supplying air to the combustor 120, a fuel supply pipe 140 for supplying fuel stored in the fuel reservoir 110 to the combustor 120, and a fuel supply pipe 140. It is provided on the fuel control means 150 for adjusting the amount of fuel supplied to the combustor 120. In addition, the combustion wick 160 accommodated in the combustor 120 and absorbing the fuel supplied from the combustor 120 is lit and the combustion wick 160 allows the user to pull the combustion wick 160 out of the combustor 120. It is provided with a handle 170 extending in one direction in the).

And a power switch 180 for turning on and off the blower 130.

As a fuel oil used in the combustion apparatus 100 according to an embodiment of the present invention, a fuel having a high viscosity such as a liquid animal or vegetable oil (including waste cooking oil) may be used.

The fuel reservoir 110 in which fuel oil is stored is provided separately from the combustor 120. At this time, since the amount of fuel reservoir 110 to fill the fuel, such as liquid animal and animal oil is determined by the capacity of the fuel reservoir 110 can be used to fill a large amount of fuel at a time by increasing the volume of the fuel reservoir 110.

The fuel reservoir 110 is connected to the combustor 120 through the fuel supply pipe 140 so that fuel oil stored in the fuel reservoir 110 is supplied to the combustor 120. At this time, the fuel reservoir 110 is provided at a position higher than the combustor 120 so that fuel oil stored in the fuel reservoir 110 is naturally supplied to the combustor 120 without a separate supply device.

On the fuel supply pipe 140 connecting the fuel reservoir 110 and the combustor 120, fuel control means 150 for controlling the amount of fuel oil supplied from the fuel reservoir 110 to the combustor 120 is installed. do. Therefore, the user can adjust the fire power of the combustor by adjusting the fuel control means (150).

The fuel oil supplied from the fuel reservoir 110 burns in the combustor 120 to generate heat required by the user. Hereinafter, the structure of the combustor 120 that generates heat by burning fuel oil will be described in detail.

FIG. 2 is a perspective view of a combustor and a blower provided in the combustion device of FIG. 1, FIG. 3 is an exploded perspective view of the combustor shown in FIG. 1, and FIG. 4 is a cross-sectional view of the combustor.

2 to 4, the combustor 120 includes an inner wall 121 forming the combustion chamber 120a and an outer wall 122 forming the air supply chamber 120b together with the inner wall 121.

The inner wall 121 and the outer wall have an area larger than the area formed by the outer wall 122 to form the combustion chamber 120a and support the lower end of the outer wall 122, and the air supply chamber 120b. The upper plate 124 is continuously coupled to the inner wall 121 and the outer wall 122 at the upper end of the space formed between the (122).

 The combustion chamber 120a in which the fuel oil supplied from the fuel reservoir 110 is accommodated has a cylindrical shape with an open top. Although the combustion chamber 120a is shown to be a cylinder in the present embodiment, the combustion chamber 120a may have various shapes such as a polygonal shape as well as a cylinder.

Fuel such as liquid animal and vegetable oil is supplied to the combustion chamber 120a, and air is supplied to the air supply chamber 120b so that fuel supplied to the combustion chamber 120a can be efficiently burned.

One side of the air supply chamber 120b is connected to the blower 130 by the blower tube 131 to receive air from the blower 130. As described above, the combustor 120 may be connected to the blower 130 by the blower tube 131 to introduce air supplied from the blower 130 into the combustion chamber 120a.

By introducing air into the combustion chamber 120a, the ignition of the combustion wick 160 may be performed quickly. In addition, by supplying sufficient air into the combustion chamber 120a, it is possible to prevent incomplete combustion of fuel such as a liquid animal or vegetable oil having a high viscosity.

As such, a blower tube 131 is connected to the lower portion of the outer wall 122 forming the combustor 120 to connect the combustor 120 and the blower 130 to form an air supply port 125 through which air is supplied.

Air supplied through the air supply port 125 is first supplied to the air supply chamber 120b and then to the combustion chamber 120a. As such, when the air supplied to the air supply chamber 120b is supplied to the combustion chamber 120a, a plurality of air holes 126a, 126b, and 126c are formed in the inner wall 121 to improve the combustion efficiency in the combustion chamber 120a. do.

First, a first combustion air hole 126a is formed at a position facing the air supply port 125 formed in the outer wall 122 to supply air for primarily burning the fuel in the combustion chamber 120a.

In this case, the primary combustion air hole 126a may be formed at a position that is 1/2 or less of the height of the combustion chamber 120a. And it may be formed spaced apart a predetermined distance from the bottom of the combustion chamber (120a). When air is supplied into the combustion chamber 120a through the primary combustion air hole 126a, the air circulates along the inner wall of the combustion chamber 120a to be lower than the lower end of the primary combustion air hole 126a. Can be supplied up to. Therefore, by supplying air to the combustion wick 160 located inside the combustion chamber 120a, ignition of the fuel oil absorbed by the combustion wick 160 can be facilitated. In addition, by continuously supplying air to the ignition combustion wick 160, the fuel oil absorbed in the combustion wick 160 can be thermally decomposed.

In addition, a secondary combustion air hole 126b is formed at an upper portion of the primary combustion air hole 126a to supply air for secondary combustion of the primary combustion fuel. In this case, the secondary combustion air hole 126b may be formed at a position of 1/2 or more of the height of the combustion chamber 120a.

Meanwhile, the secondary combustion air holes 126b may be formed in the lateral direction facing the primary combustion air holes 126a and in the direction facing the primary combustion air holes 126a. Thus, by forming the secondary combustion air hole 125b in a direction in which the primary combustion air hole 126a is not formed, the vortex is generated inside the combustion chamber 120a, and the combustion chamber ( 120a) is to allow the air inside to circulate evenly.

With this structure, a pyrolysis layer D is formed below the combustion chamber 120a, and a combustion layer C is formed above the combustion chamber 120a.

The pyrolysis layer (D) is a layer in which the fuel oil absorbed in the combustion wick 160 of the ceramic fiber is decomposed by heat. The fuel oil in which the radiant energy of the ceramic fiber combustion wick is introduced is heated, lowered in viscosity, and evenly raised by capillary action. In addition, the high temperature of the wick is easily pyrolyzed in the pyrolysis layer, and thermal recirculation between the ceramic fiber wick and the combustion flame is performed to form a high temperature flame by a continuous fuel supply and air supply.

The fuel oil pyrolyzed in the pyrolysis layer D by the air supplied from the primary combustion air hole 126a is converted into a gas and supplied to the combustion layer C. Combustion layer (C) is a layer in which high temperature gas is combusted, and the high temperature gas supplied from pyrolysis layer (D) is mixed with air supplied from secondary combustion air hole (126b) and combusted. Therefore, fuel oil such as a liquid animal or vegetable oil having a high viscosity can be completely burned, and the amount of tar generated can be reduced.

On the other hand, the upper inner circumference of the inner wall 121 forming the combustor 120 has a constant interval in the circumferential direction, the flame alignment air hole 126c is formed. The flame alignment air hole 126c serves to align the flame ejected from the combustor 120 to the center.

In the combustor 120, since the primary combustion air hole 126a and the secondary combustion air hole 126b are formed, the flame does not rise in the vertical direction in the combustor 120 but is ejected in an inclined direction rather than being ejected. Since the flame can be ejected from the combustor 120, just before the flame is ejected from the combustor 120, the flame ejected from the combustor 120 by injecting air toward the central portion of the combustor 120 through the flame alignment air hole 126c Let them gather and squirt.

Meanwhile, a combustion wick is installed inside the combustion chamber 120a by absorbing fuel.

Referring to Figure 4, the combustion wick, the combustion wick 160 is made of a non-flammable ceramic type of fibers woven cross-wise, vertically cross woven yarn remaining by removing a horizontal thread under a certain height by a certain height By the wick (160a) is formed. The reason for forming the wick legs 163a in the combustion wick 160 as described above is that some of the hot gas of the combustion layer C formed on the upper portion of the combustion chamber 120a circulates to the lower portion of the combustion wick 160 for combustion. The reason is that the fuel oil positioned under the wick 160 has a low viscosity, so that the fuel oil is quickly absorbed into the combustion wick 160 by a smooth capillary phenomenon.

On the other hand, the combustion wick 160 is formed of a reticular body having a perforated hole, the wick support frame 161 supporting the combustion wick 160 is coupled. Combustion wick 160 coupled to the wick support frame 161 is wound in a spiral and detachably coupled to the combustion chamber (120a). Since the combustion wick 160 is spirally wound, a constant space is formed in the combustion wick 160, and thermal decomposition of the hot gas is smoothly performed in the space formed between the combustion wicks 160. In addition, since the combustion wick 160 is detachably coupled to the combustion chamber 120a, the combustion wick 160 may be easily replaced when the combustion wick 160 needs to be replaced by using the combustion wick 160 for a long time. On the other hand, since the combustion wick 160 is provided with a handle 170 extending to one side from the combustion wick 160, the user can easily pull out the combustion wick 160 to the outside of the combustor 120.

Referring back to FIG. 1, one end of the fuel supply pipe 140 for supplying fuel to the combustor 120 is connected to the fuel control means 150, and the other end extends into the combustion chamber 120a. . Since the fuel supply pipe 140 extends into the combustion chamber 120a as described above, the fuel supply pipe 140 is heated by the heat in the combustion chamber 120a and fuel oil supplied through the fuel supply pipe 140. Can be preheated. When the fuel oil supplied through the fuel supply pipe 140 is preheated, the viscosity of the fuel oil supplied into the combustion chamber 120a is lowered, so that pyrolysis is smoothly performed in the pyrolysis layer D of the combustion chamber 120a. Therefore, the amount of tar generated in the combustor 120 can be reduced.

On the other hand, since the fuel supply pipe 140 extends into the combustion chamber 120a, the fuel supply pipe 140 can withstand high heat in the combustion chamber 120a and has thermal conductivity so that the fuel oil supplied through the fuel supply pipe 140 can be preheated. It may be formed of a material such as high copper.

Since the fuel supply pipe 140 needs to be introduced into the combustion chamber 120a, the fuel supply pipe 140 includes a bent portion 140a. At this time, the bent portion 140a is located above the fuel control means 150. The reason for this is to prevent the combustor 120 from overheating because fuel oil remaining inside the fuel supply pipe 140 when the user closes the fuel control means 150 is continuously supplied into the combustion chamber 120a.

On the other hand, the fuel supply pipe 140 is provided with a fuel control means 150 for adjusting the amount of fuel introduced into the combustion chamber (120a), the fuel control means will be described in detail below.

Figure 5 is an exploded perspective view of the fuel control means provided in the combustion apparatus according to an embodiment of the present invention.

Referring to FIG. 5, the fuel control means 150 includes a case 151 forming a through hole 151a through which the fuel supply pipe 140 passes, and a fuel supply pipe 140 accommodated in the through hole 151a. It is provided with a pressure member 152 in close contact with one side of the pressure supply to the fuel supply pipe 140 and the control member 153 is installed to be retractable to the case 151 to apply pressure to the pressure member 152.

The adjusting member 153 is coupled to the case 151 by a screw method, and when the adjusting member 153 is rotated to one side, the end of the adjusting member 153 moves in the direction pushing the pressing member 152 so that the fuel supply pipe ( 140) the inner diameter is narrowed. On the contrary, when the adjusting member 153 is rotated to the other side, the end of the adjusting member 153 moves in the opposite direction to the pushing direction of the pressing member 152, thereby widening the inner diameter of the fuel supply pipe 140.

Since a fuel such as a liquid animal or vegetable oil is highly viscous, the amount of fuel supplied to the combustor 120 using a general ball valve is not well controlled. However, the fuel control means 150 provided in the combustion apparatus according to the embodiment of the present invention controls the internal diameter of the fuel supply pipe 140 itself, even when the fuel is a viscous liquid such as a plant or animal oil having a high viscosity. It is possible to finely control the amount of fuel supplied to the furnace.

Meanwhile, a portion of the fuel supply pipe 140 to which the pressure member 152 exerts a pressure may be provided with a protection member 155 for preventing the fuel supply pipe 140 from being damaged. In this case, the protective member 155 may have elasticity and may be formed of a resin material such as to surround the fuel supply pipe 140 and not slip when contacted with the pressure member 152. Therefore, when the pressure is applied to the fuel supply pipe 140 using the adjustment member 153, the inner diameter is accurately changed according to the operation of the adjustment member 153 without slipping the fuel supply pipe 140.

The combustion apparatus according to an embodiment of the present invention has been described above, but the spirit of the present invention is not limited to the embodiments presented herein. And those skilled in the art to understand the spirit of the present invention can easily suggest other embodiments by the addition, modification, deletion, addition, etc. within the scope of the same idea, but this also falls within the scope of the invention something to do.

110: fuel reservoir 120: burner
130: blower 140: fuel supply pipe
150: fuel control means

Claims (13)

A fuel reservoir in which fuel is stored,
A combustor configured to combust fuel by receiving fuel from the fuel reservoir;
A blower for supplying air to the combustor,
A fuel supply pipe for supplying fuel stored in the fuel reservoir to the combustor;
A fuel control means installed on the fuel supply pipe to adjust an amount of fuel supplied to the combustor,
The combustor includes a combustion chamber in which fuel supplied from the fuel reservoir is combusted, and an air supply chamber receiving air from the blower and supplying air to the combustion chamber, wherein the combustion chamber is supplied to the combustion chamber between the air supply chamber and the combustion chamber. A plurality of air holes for supplying air to efficiently burn fuel is formed,
The combustor includes an inner wall forming the combustion chamber and the plurality of air holes formed therein, and an outer wall provided outside the inner wall to form the air supply chamber together with the inner wall.
A blower pipe connecting the blower and the outer wall to supply air blown from the blower to the air supply chamber, and an air supply hole through which the blower pipe is connected is formed at the lower portion of the outer wall to supply air;
The air hole is formed in a position facing the air supply port, the primary combustion air hole for supplying air for primary combustion of the fuel in the combustion chamber, and is formed in the upper portion of the primary combustion air hole And a secondary combustion air hole for supplying air for secondary combustion of the primary burned fuel. delete delete delete delete The method of claim 1,
The air hole is formed to have a predetermined interval in the circumferential direction of the inner wall in the upper portion of the secondary combustion air hole, characterized in that it further comprises a flame alignment air hole for aligning the flame burned in the combustion chamber to the center Combustion apparatus. The method of claim 1,
A combustion wick accommodated in the combustion chamber and absorbing fuel supplied to the combustion chamber to catch fire;
And a handle extending in one direction from the combustion wick so that a user can pull the combustion wick out of the combustion chamber. 8. The method of claim 7,
The combustion wick is composed of woven fibers intersected with the yarn horizontally and vertically to remove the horizontal yarn under the fiber by a certain height so that the wick legs are formed by the remaining vertical yarn. 8. The method of claim 7,
And a wick support frame formed of a network having perforations to support the combustion wick. The method of claim 1,
And a power switch for turning on and off the blower. The method of claim 1,
The fuel control means
A case forming a through hole through which the fuel supply pipe passes;
A pressurizing member accommodated in the through hole and in close contact with one side of the fuel supply pipe to apply pressure to the fuel supply pipe;
Combustion apparatus characterized in that it is provided to be retractable to the case and has a control member for applying pressure to the pressure member. 12. The method of claim 11,
And a protection member is provided at a portion of the fuel supply pipe to which the pressure member applies pressure to prevent the fuel supply pipe from being damaged. The method of claim 1,
The fuel supply pipe has a bent portion bent to be introduced into the combustion chamber, wherein the bent portion is located above the fuel control means.

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