KR101313759B1 - Large-capacity burner - Google Patents

Abstract

An object of the present invention is to provide a large-capacity burner capable of minimizing incomplete combustion of fuel to increase combustion efficiency and heating performance, to burn a large amount of solid fuel with small particles, and to prevent backfire.
A large capacity burner according to the present invention includes a tubular combustion chamber; A space forming body positioned at a central portion of the combustion chamber and formed to have an inner space at a lower portion thereof; And a fuel supply pipe connected to the combustion chamber so as to supply fuel to the combustion chamber.

Description

Large Burner {LARGE-CAPACITY BURNER}

The present invention relates to a large capacity burner, and more particularly to a large capacity burner for heating a boiler or the like.

Currently used boilers have various structures from industrial boilers to domestic boilers. In general, a domestic boiler is a heating means for heating the indoor space comfortably and warmly in a low temperature season such as winter season, early spring or late autumn, and is heated by heating water or heat medium in a closed container by combustion heat or other heat source. Heat medium such as water or steam is circulated to the heating line to heat the indoor space. Oil, gas, or solid fuel may be used as a fuel for hot water heating. Among them, particularly in the case of a small particle solid fuel, the space between the solid fuels is small and sufficient contact between the solid fuel and the air is not achieved. Incomplete combustion of a solid fuel and a reduction in combustion efficiency and heating performance are caused.

In addition, when small-particle solid fuel is burned in large quantities at one time, air does not reach the center of the solid fuel accumulated in a large volume. Therefore, since only the outside of the solid fuel pile is burned, it is not applicable to a large-capacity burner that burns solid fuel in large quantities.

In addition, when a component made of a metal such as a burner of a burner is exposed to excessive high temperatures, corrosion of the metal and degradation of durability occur.

In addition, there is a problem that when the flame backfires from the exhaust port side, the combustion efficiency decreases, and in particular, by backfired toward the fuel supply pipe side, it is possible to ignite solid fuel that has not yet been supplied into the burner.

In addition, in the case of solid fuel, unlike the case of using oil or gas, it takes a long time to reach the normal combustion temperature at the initial stage of fuel ignition.

An object of the present invention is to provide a large-capacity burner capable of burning a large amount of solid fuel with small particles.

In addition, another object of the present invention is to provide a large-capacity burner capable of increasing combustion efficiency and heating performance by minimizing incomplete combustion by uniformly maximizing contact between continuously introduced solid fuel and air.

In addition, the present invention has another object to provide a large-capacity burner that can minimize corrosion and increase durability.

In addition, the present invention has another object to provide a large-capacity burner that can prevent a safety accident due to backfire.

In addition, the present invention has another object to provide a large-capacity burner that can shorten the time required to the normal combustion temperature at the initial stage of ignition to increase combustion efficiency and heating performance.

A large capacity burner according to the present invention includes a tubular combustion chamber; A space forming body positioned at a central portion of the combustion chamber and formed to have an inner space; And a fuel supply pipe connected to the combustion chamber so as to supply fuel to the combustion chamber.

Preferably, the large-capacity burner further includes a main tube penetrating the combustion chamber to allow fluid to flow therein, and the space forming body is coupled thereto.

Preferably, the apparatus may further include at least one blower tube connected to the combustion chamber to supply air to the combustion chamber, and a plurality of through holes may be formed in the combustion chamber.

Preferably, it may further include a blower for forcibly supplying air to the blower.

Preferably, the blower pipe may further include a valve for controlling the flow of air.

Preferably, at least one fuel supply blower pipe connected to the fuel supply pipe to supply air into the fuel supply pipe; And a check valve positioned in the fuel supply pipe and opening and closing the fuel supply blower pipe.

Preferably, the space forming body, the upper portion may have a wedge shape.

Preferably, the space forming body may have a pair of airfoils facing downward to have an inner space at the bottom thereof.

Preferably, the space forming body has a through hole in the center, and at least a portion thereof may be recessed so that the through hole and the outside of the space forming body communicate with each other.

Preferably, the space forming body has a through hole in the center, at least a portion of the through hole and the outside of the space forming body can pass through each other.

Preferably, a plurality of through holes may be formed in the main tube so that air can be supplied through the main tube.

The large-capacity burner according to the present invention can maximize the contact between the fuel and the air to burn the pyrolysis gas of the solid fuel to a high temperature to minimize the incomplete combustion, thereby maximizing the combustion efficiency and the heating performance, and thus Particles that were not applicable have the effect of enabling burners to burn large amounts of solid fuel. In addition, the combustion of the gas through the high-temperature pyrolysis of the solid fuel can minimize incomplete combustion, increase the combustion efficiency, and the heating performance, it is possible to minimize the emission of greenhouse gases. In addition, it is possible to remove dust and foreign matter in real time during solid fuel combustion, and to minimize the time required for the normal combustion temperature at the initial stage of ignition, thereby increasing the combustion efficiency and heating performance. In addition, it is possible to prevent excessive temperature rise of the components exposed to high temperatures, thereby increasing the durability of the components, and preventing backfire to the fuel supply pipe side, thereby preventing uninjected solid fuel ignition and resulting fire accidents and device damage. There is an effect that can be prevented.

1 is a perspective view of a large-capacity burner according to an embodiment of the present invention,
Figure 2a is a plan view of a large-capacity burner according to an embodiment of the present invention,
2b is a front view of a large-capacity burner according to an embodiment of the present invention;
Figure 2c is a left side view of the large-capacity burner according to an embodiment of the present invention,
2d is a right side view of the large-capacity burner according to one embodiment of the present invention;
3a and 3b is a perspective view of a large-capacity burner according to an embodiment of the present invention,
4 is a view showing a space forming body of a large-capacity burner according to an embodiment of the present invention,
5 is a view showing the flow of air supplied to the combustion chamber of the large-capacity burner according to an embodiment of the present invention,
6A and 6B are partial enlarged views of a fuel supply part blower tube side of a large-capacity burner according to an embodiment of the present invention;
Figure 7a is a perspective view of a large-capacity burner according to an embodiment of the present invention, and
7B is a view showing a solid fuel input of a large-capacity burner according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined. Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

1 is a perspective view of a large-capacity burner according to an embodiment of the present invention, Figure 2a is a plan view of a large-capacity burner according to an embodiment of the present invention, Figure 2b is a front view of a large-capacity burner according to an embodiment of the present invention, Figure 2c is a left side view of the large-capacity burner according to an embodiment of the present invention, FIG. 2d is a right side view of the large-capacity burner according to an embodiment of the present invention, and FIGS. 3a and 3b are views of the large-capacity burner according to an embodiment of the present invention. 4 is a view showing a space forming body of a large-capacity burner according to an embodiment of the present invention, and FIG. 5 is a view showing the flow of air supplied to the combustion chamber of the large-capacity burner according to the embodiment of the present invention.

The large-capacity burner according to an embodiment of the present invention includes a space forming body 120, a combustion chamber 100, and a blower 240.

The combustion chamber 100 has a tubular shape, and the space forming body 120 is positioned in the central portion of the combustion chamber 100.

The outer side of the combustion chamber 100 is spaced apart from the combustion chamber 100 by a predetermined interval, the tubular combustion chamber exterior 110 is configured. The inner body 210 is spaced apart from the combustion chamber exterior 110 by a predetermined interval on the outside of the combustion chamber exterior 110, and the body 200 is spaced apart from the inner body 210 by a predetermined interval on the outside of the inner body 210. do. In addition, the gas discharge inner tube 140 is connected to the upper portion of the combustion chamber 100 so as to communicate with the combustion chamber 100, and the gas discharge inner tube 140 is spaced apart from the gas discharge inner tube 140 by a predetermined distance to the outside of the gas discharge inner tube 140. 141 is configured. The cover 150, which may be opened and closed, may be configured in the gas discharge appearance 141 to observe and clean the inside of the combustion chamber 100, and a fireproof material may be configured in the combustion chamber 100.

The main tube 500 is disposed to penetrate the combustion chamber 100 from the body 200 so as to communicate with the outside of the body 200, and a plurality of space forming bodies 120 are coupled to the main tube 500. The space forming body 120 forms a space in an approximately center portion of the stacked solid fuel stack when the solid fuel is injected and stacked in the combustion chamber 100, and supplies air. Referring to FIG. 4, the space forming body 120 penetrates the center, a groove is formed at the lower side, and the groove at the lower side is fitted to the main pipe 500. In addition, since the center portion penetrated is disposed to communicate with a part of the blower tube 250, air may pass between neighboring space forming bodies 120. At this time, the depression is formed radially so that air can flow from the center of the space forming body 120 to the outside of the space forming body 120. Therefore, the air can be supplied from the space forming body 120 to the center of the solid fuel. In addition, according to an embodiment of the present invention, a plurality of through holes are formed in the main pipe 500 to receive air from the outside. According to another exemplary embodiment of the present invention, the main pipe 500 may be connected to the water supply pipe outside the body 200 to receive the coolant.

Solid fuel introduced into the combustion chamber 100 may be stacked from the lower portion of the combustion chamber 100, and dust from which the solid fuel is combusted may be discharged to the lower portion of the combustion chamber 100. The discharge roller 160 is configured at the lower end of the combustion chamber 100. When the discharge roller 160 is stopped, the discharge of dust is blocked, and when the discharge roller 160 is rotated, the discharge of dust is controlled by controlling the discharge of dust. Can be. Although not shown, a temperature measuring unit having a predetermined distance from the lower portion of the combustion chamber 100 may be positioned to measure the temperature of the lower portion of the combustion chamber 150. According to an embodiment of the present invention, the temperature measuring unit may measure a temperature sensor or a temperature. It may include an optical sensor. In addition, the discharge portion 220 is connected to the lower portion of the body 200 may be discharged through the discharge roller 160, natural ash, foreign matter, dust and the like.

The lower part of the combustion chamber 100 is inclined so that the innate ash, foreign matter, dust, etc. inside the combustion chamber 100 can be discharged well, and the vibration plate 190 is hinged at one side of the lower side of the combustion chamber 100. One side of the vibration plate 190 is connected to the vibration motor 191, by vibrating the vibration plate 190 by the vibration motor 191 can effectively discharge the natural ash, foreign matter, dust and the like.

The fuel supply pipe 230 is for supplying the solid fuel into the combustion chamber 100. According to an embodiment, a screw (not shown) may be configured inside the fuel supply pipe 230 to supply the solid fuel. In addition, one side of the fuel supply pipe 230 is provided with a fuel detection sensor 400 can detect whether the solid fuel is input, and the input amount.

The blower 240 is for supplying fresh air to the combustion chamber 100 and the like, and supplies air to the plurality of blowers 250. The blower pipe 250 is connected to the combustion chamber 100, the inner body 210, the gas discharge appearance 141, and the fuel supply pipe 230, respectively. In addition, a heater 300 is configured in the blower pipe 250 connected to the lower portion of the combustion chamber 100 to ignite the solid fuel injected into the combustion chamber 100. In addition, although not shown, each blower tube 250 may be configured with a valve, and by operating each valve individually, the amount of air supplied through each blower tube 250 may be independently controlled. Therefore, optimum combustion is possible according to the input amount of the solid fuel, the combustion situation, the combustion progression stage, and the like.

Meanwhile, a plurality of through holes are formed in the combustion chamber 100 and the outer space forming body 121. According to one embodiment of the present invention, the through holes preferably have a diameter through which solid fuel cannot pass. In addition, a plurality of through holes are formed in the combustion chamber exterior 110. According to one embodiment of the present invention, the through holes of the combustion chamber exterior 110 have a larger diameter than the through holes of the combustion chamber 100 for a smooth flow of air. It is preferable to have.

Operation of the large-capacity burner according to an embodiment of the present invention is as follows.

Air supplied from the blower unit 240 is supplied through the fuel supply unit blower tube 260 configured at one side of the fuel supply tube 230, and the first check valve 271 is air supplied through the fuel supply unit blower tube 260. Is opened by. The solid fuel 600 such as pellets is introduced into the combustion chamber 100 through the first check valve 271. The injected solid fuel is stacked from the lower part of the combustion chamber 100 to be stacked in the combustion chamber 100. At this time, the solid fuel cannot be accumulated inside the wedge-shaped space forming body 120 disposed at the center of the combustion chamber 100.

The injected solid fuel is ignited by the heater 300, and the air from the blower 240 opens the third check valve 273 and heats the air introduced into the combustion chamber 100 through the blower tube 250. The solid fuel is ignited, and the operation of the heater 300 is stopped after the ignition is completed.

On the other hand, air is supplied through the blower pipe 250 and the main pipe 500 for smooth and complete combustion of the solid fuel. In addition, the air transported through the blower tube 250 connected to the inner body 210 is supplied to the solid fuel through the combustion chamber exterior 110 and through holes of the combustion chamber 100. Then, air is supplied to the combustion chamber 100 through the blower pipe 250 in which the heater 300 is configured. Each blower tube 250 may be changed in position and number configured for a smooth air supply, the heater 300 may also be changed in position and number in consideration of the ignition performance.

The hot gas generated while the solid fuel is pyrolyzed is discharged through the gas discharge inner tube 140. At this time, the gas is mixed with the incomplete combustion gas, it is preferable to completely burn the incomplete combustion gas, the incomplete combustion gas passing through the gas discharge inner tube 140 is supplied from the blower pipe 250 connected to the gas discharge appearance 141 Combustion efficiency becomes high by air which becomes.

Born of the solid fuel burned ash, foreign matter, dust and the like, foreign matter such as sand buried in the solid fuel is discharged to the lower portion of the combustion chamber (100). The dust, and foreign matter, of the solid fuel burned is lower in temperature than the solid fuel in combustion. Therefore, when the temperature measured by the temperature measuring unit is below a predetermined value, it can be seen that dust is accumulated inside the lower part of the combustion chamber 100, in which case the discharge roller 160 is operated. The dust of the lower part of the combustion chamber 100 is discharged | emitted to the discharge part 220 according to the operation of the discharge roller 160, At this time, the dust and the foreign substances in dust are densely crushed by a roller. If the temperature measured by the temperature measuring unit during the discharge of the dust is a predetermined value or more can be seen as a solid fuel in combustion, the operation of the discharge roller 160 is stopped. In addition, when the dust adheres to the lower part of the combustion chamber 100 and is difficult to discharge, the vibration plate 190 may be vibrated and moved to effectively discharge the dust.

On the other hand, the central portion of the solid fuel to be burned is higher than the outside, the problem of corrosion, deterioration, etc. when the metal or the refractory material such as the space forming body 120 located in the central portion of the solid fuel is exposed to excessive high temperature It may occur, it is possible to prevent excessive temperature rise by the air discharged from the main pipe (500).

Similarly, the air flowing between the combustion chamber 100 and the exterior of the combustion chamber 110 prevents excessive high temperature exposure of components made of metals, refractory materials, and the like, thereby preventing corrosion and deterioration of durability.

Meanwhile, in the combustion chamber 100 in which solid fuel is mainly combusted, the supply and flow of air is very important. Referring to FIG. 5, the air supplied to the inner body 210 passes through a through hole of the combustion chamber exterior 110. The fuel cell is supplied as a solid fuel through the through hole of the combustion chamber 100. This allows the air to sequentially pass through the through-hole of the relatively large diameter combustion chamber exterior 110 and the through-hole of the relatively small combustion chamber 100, thereby slowing the flow rate of the air and uniformly contacting the solid fuel with the air. Is to maximize. By lowering the air flow rate, it is possible to prevent scattering of the solid fuel which may occur when the air flow rate is high, and by increasing the contact between the solid fuel and the air uniformly, it is possible to increase combustion efficiency and reduce incomplete combustion. In addition, since the air reaches the outer surface of the combustion chamber evenly, it is possible to more reliably prevent excessive temperature rise of the combustion chamber 100. In FIG. 5, the configuration of the apparatus is briefly exaggerated to help understand the air flow supplied through the blower pipe 250 connected to the inner body 210.

In addition, referring to Figures 2c to 3b, a portion of the blower pipe 250 is provided with a blowing amount adjusting unit 280 of the bolt fastening method, it is possible to adjust the blowing amount.

6A and 6B are partial enlarged views of a fuel supply part blower tube side of a large-capacity burner according to an embodiment of the present invention, and may cause a backfire phenomenon when the air pressure outside the burner is higher than the inside of the burner when combustion proceeds. In this case, in particular, when the flame flows back to the fuel supply pipe 230 side, the fuel supply pipe 230 side is heated, and may go to the combustion chamber 100 to ignite the solid fuel that has not been supplied, thereby fuel not shown Damage to the supply system and fire accidents may occur. Referring to FIG. 6A, the blower 240 is operated, the first and third check valves 271 and 273 are opened, and the air supplied from the blower 240 is supplied to the first and third check valves 271. 273 is supplied to the combustion chamber 100 side. At this time, the second check valve 272 is in a closed state. The third check valve 273 completely rotates to the right to close the fuel supply auxiliary blower tube 261, and supply the outside air to the combustion chamber 100.

Referring to FIG. 6B, when the forced air supply to the combustion chamber 100 is stopped, the blower 240 is stopped and the third check valve 273 is rotated in the opposite direction to the above to close the fuel supply unit. The blower tube 261 is opened. At this time, when backfire is detected by the fuel supply pipe temperature measuring unit 290, the blower 240 is operated, and the outside air is introduced into the fuel supply pipe 230 through the fuel supply auxiliary blower pipe 261 and the second check valve 272. Backfire is prevented by supplying to block the flame. Meanwhile, the third check valve 273 may be automatically rotated and opened and closed by an operating means (not shown) such as a motor.

Figure 7a is a perspective view of a large-capacity burner according to an embodiment of the present invention, and Figure 7b is a view showing the solid fuel input of the large-capacity burner according to another embodiment of the present invention.

According to another embodiment of the present invention, a plurality of space forming bodies 120 'are coupled to the main tube 500', and the space forming bodies 120 have a shape in which the lower inner side thereof is empty. The solid fuel to be injected is stacked from the lower part of the combustion chamber 100 to be stacked in the combustion chamber 100. In this case, a space in which solid fuel cannot be accumulated is formed inside the wedge-shaped space forming body 120 disposed at the center of the combustion chamber 100. can do. The inner upper side of the space forming body 120 'is coupled to the main pipe 500' in a row, and is externally connected to the main pipe 500 'and the main pipe 500' and the blower pipe 250 disposed at the bottom. It can be supplied with air to help burn fuel. Due to the space forming body 120, an empty space can be formed in the center of the solid fuel, and the outside air can be supplied thereto, so that the ointment efficiency is very good. In addition, the inside of the space forming body 120 is a very high temperature, the strong flame and the complete combustion gas is generated, the high temperature complete combustion gas may be generated inside the space forming body 120.

The small particle solid fuel does not have a large space between particles, and there is no problem when burning a small amount of solid fuel, but when burning a large amount of solid fuel at a time, air flows to the center of the solid fuel accumulated in a large volume. Can't reach Therefore, since only the outer side of the solid fuel stack is burned and the center is difficult to burn, it is very difficult to implement a large-capacity burner that burns a large amount of solid fuel with small particles at present. In addition, when a large amount of fuel is burned, a component made of metal such as a combustion chamber or the like is exposed to excessive high temperature, thereby causing corrosion and deterioration of the component.

However, the large-capacity burner according to the present invention allows maximum uniform contact with air as well as the outside of the solid fuel pile continuously introduced, thereby minimizing incomplete combustion and increasing combustion efficiency and heating performance. It is possible to implement a large-capacity burner capable of burning a large amount of small solid fuel.

In addition, by burning the high-temperature pyrolysis gas of the solid fuel can minimize the incomplete combustion, improve the combustion efficiency, and the heating performance, it can also minimize the emission of greenhouse gases.

In addition, when a large amount of fuel is burned, the temperature rises excessively, and thus, a combustion chamber made of a metal or a refractory material is exposed to excessive high temperature, thereby causing corrosion and deterioration of durability. However, in the large-capacity burner according to the present invention, the air supplied to the solid fuel can cool the component by sufficiently uniformly contacting the component made of metal such as a combustion chamber. Therefore, corrosion and durability degradation can be prevented by preventing the component from being exposed to excessive high temperatures.

In addition, there arises a problem that combustion efficiency is lowered, such as dust generated after the solid fuel is burned, and air supply to the solid fuel is not smooth when foreign matter is accumulated in the combustion chamber. However, the large-capacity burner according to the present invention can increase the combustion efficiency because it is desired to remove dust and foreign matter during solid fuel combustion.

In addition, since the contact area between the solid fuel and the air is very large and it is possible to make uniform contact, it is possible to minimize the time required to the normal combustion temperature at the beginning of ignition. Therefore, combustion efficiency and heating performance can be improved.

In addition, since the backfire to the fuel supply pipe side can be reliably prevented, the present invention can prevent ignition of unfilled solid fuel, lower durability of the fuel supply pipe side, and lower combustion efficiency, and in particular, prevent the occurrence of a fire accident. have.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Various modifications and variations are possible within the scope of the appended claims.

100: combustion chamber 110: combustion chamber appearance
120, 120 ': space forming body
140: gas discharge inner tube 141: gas discharge appearance
150: cover 160: discharge roller
190: vibration plate 191: vibration motor
200: body 210: inner body
220: discharge portion 230: fuel supply pipe
240: blower 250: blower
260: fuel supply part blower tube 261: fuel supply part blower tube
271: first check valve 272: second check valve
273: 3rd check valve 280: air volume adjustment part
290: fuel supply pipe temperature measuring unit 300: heater
400: fuel sensor 500, 500 ': main pipe

Claims (11)

A tubular combustion chamber;
A space forming body positioned at a central portion of the combustion chamber and formed to have an inner space; And
A fuel supply pipe connected to the combustion chamber to supply fuel to the combustion chamber;
It includes, wherein the space forming body, a large capacity burner, characterized in that the upper portion has a wedge shape.
A tubular combustion chamber;
A space forming body positioned at a central portion of the combustion chamber and formed to have an inner space; And
A fuel supply pipe connected to the combustion chamber to supply fuel to the combustion chamber;
And a space-forming body, wherein the space-forming body has a pair of airfoils facing downward to have an inner space at the bottom thereof.
A tubular combustion chamber;
A space forming body positioned at a central portion of the combustion chamber and formed to have an inner space; And
A fuel supply pipe connected to the combustion chamber to supply fuel to the combustion chamber;
It includes, The space forming body, has a through hole in the center, the large-capacity burner, characterized in that at least a portion is recessed so that the through hole and the outside of the space forming body communicate with each other.
A tubular combustion chamber;
A space forming body positioned at a central portion of the combustion chamber and formed to have an inner space; And
A fuel supply pipe connected to the combustion chamber to supply fuel to the combustion chamber;
It includes, The space forming body, has a through hole in the center, the large-capacity burner, characterized in that at least a portion through the through hole and the outside of the space forming body to pass through each other.
5. The method according to any one of claims 1 to 4,
The main pipe penetrates the combustion chamber to allow fluid to flow therein, and the space forming body is coupled thereto.
Large burner containing more.
The method of claim 5,
At least one blower tube connected to the combustion chamber for supplying air to the combustion chamber
Further comprising a large-capacity burner in which a plurality of through holes are formed in the combustion chamber.
The method according to claim 6,
Blower for forcibly supplying air to the blower
Large capacity burner containing more.
The method of claim 7, wherein
A valve provided in the blower pipe for controlling the flow of air
Large capacity burner containing more.
9. The method of claim 8,
At least one fuel supply blower pipe connected to the fuel supply pipe to supply air to the fuel supply pipe; And
A check valve located in the fuel supply pipe and opening and closing the fuel supply blower pipe.
Large capacity burner containing more.
The method of claim 5,
The large-capacity burner, characterized in that a plurality of through-holes are formed in the main tube to supply air through the main tube. delete

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