KR101216493B1 - backfire prevention burner - Google Patents

Abstract

It is an object of the present invention to minimize the incomplete combustion of fuel to improve the combustion efficiency and heating performance, to burn a large amount of solid fuel with small particles, and to provide a flashback prevention burner that can prevent backfire.
Flashback burner according to the present invention, the tubular combustion chamber; An inner space forming body located in a central portion of the combustion chamber, the upper portion of which is narrower than the lower portion; A post combustion inner tube connected inside the inner space forming body to communicate with each other; And a fuel supply pipe connected to the combustion chamber so as to supply fuel to the combustion chamber.

Description

Flashback Burner {BACKFIRE PREVENTION BURNER}

The present invention relates to a flashback burner, and more particularly, to a flashback 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. Thus, only the outside of the solid fuel stack is burned, making it impossible to apply to a flashback burner that burns a large amount of solid fuel.

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.

It is an object of the present invention to provide a flashback burner capable of burning a large amount of solid fuel with small particles.

It is another object of the present invention to provide a flashback prevention burner that can maximize combustion efficiency and heating performance by minimizing incomplete combustion by uniformly maximizing the contact between continuously introduced solid fuel and air.

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

Another object of the present invention is to provide a flashback prevention burner that can prevent a safety accident due to flashback.

Flashback burner according to the present invention, the tubular combustion chamber; An inner space forming body located in a central portion of the combustion chamber, the upper portion of which is narrower than the lower portion; A post combustion inner tube connected inside the inner space forming body to communicate with each other; And a fuel supply pipe connected to the combustion chamber so as to supply fuel to the combustion chamber.

Preferably, at least one fuel supply blower pipe connected to the fuel supply pipe to supply air into the fuel supply pipe; A first check valve positioned in the fuel supply pipe, and configured to open and close the fuel supply blower pipe; And a second check valve positioned in the fuel supply pipe and opening and closing a hole formed at one side of the fuel supply pipe.

Preferably, the outer space having a cone shape of the upper narrower than the lower portion, and spaced apart from the inner space forming a predetermined interval to surround the outside of the inner space forming body, the plurality of through-holes are formed; And a late combustion appearance spaced apart from the late combustion inner tube by a predetermined distance to surround the outer side of the late combustion inner tube, and connected to the inside of the outer space forming body so as to communicate with each other, and having a plurality of through holes formed therein. .

Preferably, at least one first blower pipe connected to the outer space forming body to supply air between the outer space forming body and the inner space forming body; And at least one second blower tube connected to the late combustion appearance to supply air between the late combustion appearance and the late combustion inner tube.

Preferably, at least one third blower pipe connected to the combustion chamber to supply air to the combustion chamber; A body surrounding the outside of the combustion chamber at a predetermined distance from the combustion chamber; And at least one fourth blower pipe connected to the body to supply air between the body and the combustion chamber, and a plurality of through holes may be formed in the combustion chamber.

Preferably, the heater provided in at least one or more of the first to fourth blower pipe for igniting the fuel; A blower for forcibly supplying air to at least one of the first to fourth blower pipes; And a valve for controlling the flow of air provided in at least one of the first to fourth blower pipes.

Preferably, the air supply unit may further include an auxiliary blower connected to a hole formed at one side of the fuel supply pipe and forcibly supplying air through the second check valve.

Preferably, the apparatus may further include a fuel supply auxiliary blower pipe connecting the air blower and the hole formed at one side of the fuel supply pipe to forcibly supply air to the second check valve.

Preferably, the apparatus may further include a third check valve positioned between the blower unit and the first to fourth blower pipes, and the third check valve may include the blower unit and the first to fourth controllers in a first position. It is possible to cut off between the blower and the second blower between the blower and the fuel supply unit at a second position.

Preferably, the fuel supply pipe may further include a temperature measuring unit for measuring the temperature of the fuel supply pipe.

The flashback 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, thereby This has the effect of enabling a burner to burn large amounts of small solid fuel, which was not applicable to the particles. 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 flashback burner according to an embodiment of the present invention,
Figure 2a is a plan view of a flashback burner according to an embodiment of the present invention,
Figure 2b is a front view of the flashback burner according to an embodiment of the present invention,
Figure 2c is a left side view of the flashback burner according to an embodiment of the present invention,
Figure 2d is a right side view of the flashback burner according to an embodiment of the present invention,
3 is a side perspective view of a flashback burner according to an embodiment of the present invention;
4 is a view showing the flow of air supplied to the combustion chamber of the flashback burner according to an embodiment of the present invention,
5A and 5B are partial enlarged views of a fuel supply part blower tube side of a flashback burner according to an embodiment of the present invention; and
6A and 6B are partially enlarged views of a fuel supply part blower tube side of a flashback burner according to another embodiment of the present invention.

Hereinafter, exemplary 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 flashback burner according to an embodiment of the present invention, Figure 2a is a plan view of a flashback burner according to an embodiment of the present invention, Figure 2b is a front view of a flashback burner according to an embodiment of the present invention Figure 2c is a left side view of the flashback burner according to an embodiment of the present invention, Figure 2d is a right side view of a flashback burner according to an embodiment of the present invention, Figure 3 is a flashback according to an embodiment of the present invention Side perspective view of the burner, and Figure 4 is a view showing the flow of air supplied to the combustion chamber of the flashback burner according to an embodiment of the present invention.

Flashback burner according to an embodiment of the present invention includes an inner space forming body 120, the combustion chamber 100, and a blower 240.

The combustion chamber 100 has a cylindrical shape, and a cone-shaped inner space forming member 120 is formed at a central portion inside the combustion chamber 100, and is spaced apart from the inner space forming body 120 by a predetermined interval outside the inner space forming body 120. The cone-shaped outer space forming body 121 is located. The upper combustion inner tube 130 is connected to the upper end of the inner space forming body 120, and is connected to communicate with the inner space forming body 120. In addition, the late combustion inner tube 130 is spaced apart from the late combustion inner tube 130 by a predetermined interval outside the late combustion outer tube 131, the outer space forming body 121 and the outer space forming body 121 to communicate with the inside. ) Is connected to the top. In addition, the upper end of the late combustion exterior 131 and the late combustion inner tube 130 is connected to each other, a plurality of through-holes are formed in the connection portion.

The outer side of the combustion chamber 100 is spaced apart from the combustion chamber 100 by a predetermined interval to form a cylindrical combustion chamber exterior 110. 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 lower combustion chamber 150 is connected to the lower portion of the combustion chamber 100. The lower combustion chamber 150 has a cone shape and solid fuel introduced into the combustion chamber 100 is stacked from the lower combustion chamber 150. In addition, dust in which the solid fuel is combusted may be discharged to the lower combustion chamber 150. A pair of discharge rollers 160 are formed at the lower end of the lower combustion chamber 150. When the discharge rollers 160 are stopped, the dust is blocked, and when the discharge rollers 160 are rotated, the dusts are discharged. The emission of can be controlled. Although not shown, a temperature measuring unit having a predetermined distance from the lower portion of the lower combustion chamber 150 may be positioned to measure a temperature of the lower portion of the lower combustion chamber 150. According to an embodiment of the present invention, the temperature measuring unit may include a temperature sensor or It may include an optical sensor for measuring the temperature. In addition, the discharge portion 220 is connected to the lower portion of the body 200 may discharge the dust discharged through the discharge roller 160. In addition, the discharge roller 160 is not completely in contact with each other, there is a gap between the discharge roller 160, the air forcibly introduced through the fuel supply unit blowing pipe 260 connected to the discharge unit 220 is lower combustion chamber 150 It is introduced inside to help the combustion of solid fuel.

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 410 can detect whether the solid fuel, and the input amount.

The blower 240 is for supplying fresh air to the combustion chamber 100, the lower combustion chamber 150, and the like, and supplies air to the plurality of blower tubes 250. The blower tube 250 includes the combustion chamber 100, the lower combustion chamber 150, the inner body 210, the late combustion exterior 131, the gas discharge exterior 141, the outer space forming body 121, and the fuel supply pipe 230. Is connected to each. In addition, the blower tube 250b connected to the combustion chamber 100 includes second and third heaters 301 and 302, and the blower tube 250e connected to the lower combustion chamber 150 includes the first heater 300. Is configured to ignite the solid fuel injected into the combustion chamber 100 and the lower combustion chamber 150. In addition, each blower pipe 250 is configured with a valve 420, by operating each valve 420 individually, it is possible to independently adjust the air supply amount through each blower pipe (250). 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, the lower combustion chamber 150, the outer space forming body 121, the late combustion external appearance 131, and the gas discharge inner tube 140, according to one embodiment of the present invention. According to this, the through hole preferably has a diameter through which the 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 flashback burner according to an embodiment of the present invention is as follows. The air supplied from the blower 240 is supplied through the fuel supply part blower 260 configured at one side of the fuel supply pipe 230, and the first check valve 271 is supplied to the air supplied through the fuel supply part blower 260. Is opened. Solid fuel such as pellets is introduced into the combustion chamber 100 through the first check valve 271. The solid fuel to be injected is stacked from the lower combustion chamber 150 to be accumulated in the combustion chamber 100. At this time, the solid fuel does not accumulate and a space is formed inside the internal space forming member 120 configured at the center of the combustion chamber 100. .

The injected solid fuel is ignited by the first to third heaters 300, 301 and 302, and the air from the blower opens the third check valve 273 and the combustion chamber 100 through the blower pipes 250b and 250e. , And the air flowing into the lower combustion chamber 150 is heated to ignite the solid fuel. Meanwhile, the solid fuel may be stacked only in the lower combustion chamber 150 for efficient ignition of the solid fuel, and the solid fuel may be further charged after the solid fuel in the lower combustion chamber 150 is ignited to stack the solid fuel in the combustion chamber. In this case, the first heater 300 is operated first to ignite the solid fuel in the lower combustion chamber 150, and then the second and third heaters 301 and 302 are operated to operate the solid fuel in the combustion chamber 100. Can ignite. After the ignition is finished, the operation of the first to third heaters 300, 301, and 302 is stopped.

On the other hand, air is supplied for smooth and complete combustion of the solid fuel, and the air conveyed through the blower pipe 250c connected to the outer space forming body 121 is solid through the through hole of the outer space forming body 121. Supplied to the fuel. The air transferred through the blower pipe 250d connected to the late combustion appearance 131 is supplied to the solid fuel through the through hole of the late combustion appearance 131. In addition, the air transported through the blower tube 250a connected to the inner body 210 is supplied to the solid fuel through the through hole of the combustion chamber exterior 110, the combustion chamber 100, and the lower combustion chamber 150. The air is supplied to the combustion chamber 100 and the lower combustion chamber 150 through the blower pipes 250b and 250e including the first to third heaters 300, 301, and 302. Each blower tube 250 may be changed in position and number configured for smooth air supply, and the first and third heaters 300, 301 and 302 may also be changed in consideration of ignition performance. have.

The hot gas generated while the solid fuel is pyrolyzed is discharged through the gas discharge inner tube 140, wherein the gas is mixed with incomplete combustion gas, and it is preferable to completely burn the incomplete combustion gas. Since the internal space former 120 is located at the center of the solid fuel, the interior of the internal cavity 120 is at a very high temperature and strong flames and complete combustion gases are generated. The high temperature complete combustion gas generated inside the inner space former 120 is discharged along the late combustion inner tube 130, and a strong flame inside the inner space former 120 is also ejected along the late combustion inner tube 130. .

At this time, the incomplete combustion gas passing through the gas discharge inner pipe 140 is supplied from the high-temperature flame ejected from the late combustion inner pipe 130, the blowing pipe (250g) connected to the gas discharge outer tube 141 of the gas discharge inner pipe 140 It is completely combusted by the air introduced through the through hole, and the air introduced through the through hole formed at the connection portion between the late combustion inner tube 130 and the late combustion appearance 131.

Dust of the burned solid fuel and foreign matter such as sand buried in the solid fuel are discharged to the lower portion of the lower combustion chamber 150. 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 combustion chamber 150, in which case the discharge roller 160 is operated. According to the operation of the discharge roller 160, the dust of the lower combustion chamber 150 is discharged to the discharge unit 220, the dust and foreign matter in the dust is more densely pulverized by the roller. If the temperature measured by the temperature measuring unit 400 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.

On the other hand, the central portion of the solid fuel to be burned is higher than the outside, and problems such as corrosion and deterioration may occur when a metal such as the outer space forming body 121 located at the central portion of the solid fuel is exposed to excessive high temperatures. Can be. Therefore, the air flows between the spaced outer space forming body 121 and the space space 120, and between the late combustion appearance 131 and the late combustion inner tube 130 to prevent excessive temperature rise. Can be.

Similarly, the metal is caused by the air flowing between the combustion chamber 100 and the combustion chamber exterior 110, between the lower combustion chamber 150 and the inner body 210, and between the gas exhaust inner tube 140 and the gas exhaust exterior 141. It is possible to prevent excessive high temperature exposure of the components consisting of corrosion and degradation 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. 4, 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. 4, the configuration of the apparatus is briefly exaggerated to help the understanding of the air flow supplied through the blower pipe 250a connected to the inner body 210.

5A and 5B are partially enlarged views of a fuel supply part blower tube side of a flashback burner according to an embodiment of the present invention. When the combustion proceeds, a backfire may occur when the air pressure outside the burner is higher than the inside of the burner. 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. 5A, 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 and 273. ) Is supplied to the combustion chamber 100 side. At this time, the auxiliary blower 280 is stopped and the second check valve 272 is closed.

Meanwhile, referring to FIG. 5B, when the blower 240 is stopped, the third check valve is closed, and the temperature of the fuel supply pipe 230 is increased when the flame backs into the fuel supply pipe 230. Therefore, when the temperature of the fuel supply pipe 230 is measured by the fuel supply pipe temperature measuring unit 290 to a predetermined value or more, the auxiliary blower 280 operates. The auxiliary blower 280 is connected to the second check valve 272 through the fuel supply blower 260 and air is supplied into the fuel supply pipe 230 through the second check valve 272 to block the flame. Flashback is thereby prevented. Meanwhile, according to one embodiment of the present invention, the first to third check valves 271, 272, and 273 are opened by the flow of air, and closed by their own weight when there is no flow of air, or not shown. It can be closed by an elastic member, a weight, or the like. In addition, the first check valve 271 can also be developed by solid fuel.

6A and 6B are partially enlarged views of the fuel supply part blower tube side of the flashback burner according to another embodiment of the present invention, in which the fuel supply auxiliary blower tube 261 penetrates through the fuel supply part blower tube 260 to provide a second check valve 272. ) Is directly connected to the side. When forcibly supplying air into the combustion chamber 100 through the blower 240, the third check valve 273 is opened. Referring to FIG. 6A, when the third check valve 273 is completely rotated to the right, the third check valve 273 is opened. The check valve 273 closes the fuel supply auxiliary blower tube 261, and the blower 240 operates to supply 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 auxiliary 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 supplied into the fuel supply pipe 230 through the fuel supply auxiliary blower pipe 261 and the second check valve 272. Backfire by preventing flames. Meanwhile, the third check valve 273 may be automatically rotated and opened and closed by an operating means (not shown) such as a motor.

Small particle solid fuels do not have a large space between the particles. 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 does not reach the center of the solid fuel accumulated in a large volume. Therefore, since only the outer side of the solid fuel pile is burned and the central portion is difficult to burn, it is very difficult to implement a flashback burner that burns a large amount of solid fuel 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.

The flashback 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 an anti-flash 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, the flashback burner according to the present invention can cool the components by making the air supplied to the solid fuel contact the components made of metal such as a combustion chamber sufficiently uniformly. 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 flashback burner according to the present invention can increase combustion efficiency because dust and foreign matter removal are removed in real time and automatically 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.

As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited thereto and is intended by those skilled in the art to which the present invention pertains. Various modifications and variations are possible within the scope of equivalents of the claims to be described.

100: combustion chamber 110: combustion chamber appearance
120: internal space formation 121: external space formation
130: late combustion inner tube 131: late combustion appearance
140: gas discharge inner tube 141: gas discharge appearance
150: lower combustion chamber 160: discharge roller
200: body 210: inner body
220: discharge portion 230: fuel supply pipe
240: blower 250a-250g: blower
260: fuel supply part blower tube 261: fuel supply part blower tube
271: first check valve 272: second check valve
273: third check valve 280: auxiliary blower
290: fuel supply pipe temperature measuring unit
300: first heater 301: second heater
302: third heater 410: fuel detection sensor
420: valve

Claims (11)

Tubular combustion chamber;
An inner space forming body located in a central portion of the combustion chamber, the upper portion of which is narrower than the lower portion;
A post combustion inner tube connected inside the inner space forming body to communicate with each other;
A fuel supply pipe connected to the combustion chamber to supply fuel to the combustion chamber;
At least one fuel supply blower pipe connected to the fuel supply pipe to supply air to the fuel supply pipe; And
A first check valve located in the fuel supply pipe and opening and closing the fuel supply blower pipe;
Flashback burner comprising a.
The method of claim 1,
A second check valve located in the fuel supply pipe and opening / closing a hole formed in one side of the fuel supply pipe;
Flashback burner further comprising a.
The method of claim 2,
An outer space forming body having an upper cone shape narrower than the lower portion, being spaced apart from the inner space forming body by a predetermined interval, surrounding the outside of the inner space forming body, and having a plurality of through holes formed therein; And
The late combustion exterior which is spaced apart from the late combustion inner tube by a predetermined interval to surround the outer side of the late combustion inner tube, and is connected to the inside of the outer space forming body so as to communicate with each other, and a plurality of through holes are formed.
Flashback burner further comprising a.
The method of claim 3,
At least one first blower pipe connected to the outer space forming body so as to supply air between the outer space forming body and the inner space forming body; And
At least one second blower tube connected to the late combustion appearance to supply air between the late combustion appearance and the late combustion inner tube.
Flashback burner further comprising a.
5. The method of claim 4,
At least one third blower pipe connected to the combustion chamber so as to supply air to the combustion chamber;
A body surrounding the outside of the combustion chamber at a predetermined distance from the combustion chamber; And
At least one fourth blower pipe connected to the body to supply air between the body and the combustion chamber
Further comprising, wherein the combustion chamber is a flame prevention burner is formed with a plurality of through holes.
The method of claim 5,
A heater provided to at least one of the first to fourth blower pipes to ignite the fuel;
A blower for forcibly supplying air to at least one of the first to fourth blower pipes; And
A valve for controlling the flow of air provided in at least one or more of the first to fourth blower pipe
Flashback burner further comprising a.
The method according to any one of claims 1 and 3 to 6,
An auxiliary blower connected to a hole formed at one side of the fuel supply pipe and forcibly supplying air through the second check valve;
Flashback burner further comprising a.
The method according to claim 6,
A fuel supply part blower pipe connecting a hole formed in one side of the fuel supply pipe and the blower part to forcibly supply air to the second check valve.
Flashback burner further comprising a.
9. The method of claim 8,
A third check valve positioned between the blower and the first to fourth blower pipes
Further comprising:
And the third check valve blocks a gap between the blower and the first to fourth blowers at a first position, and blocks the blower and the fuel supply auxiliary blower at a second position.
The method of claim 7, wherein
Fuel supply pipe temperature measuring unit for measuring the temperature of the fuel supply pipe
Flashback burner further comprising a.
9. The method of claim 8,
Fuel supply pipe temperature measuring unit for measuring the temperature of the fuel supply pipe
Flashback burner further comprising a.

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