JP2016061511A - Combustion device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combustion device capable of completely combusting fuel, for example heavy oil, diesel and kerosene, by efficiently evaporating the same and generating flame with required heating power.SOLUTION: A combustion device 10 comprises: a cylindrical combustion chamber 20 which has an outlet port 21 at one edge side Ya in an axis direction Y and an inlet port 22 at the other edge side Yb; a fuel spray nozzle 30 which sprays fuel Fu toward the combustion chamber 20 through the outlet port 22; an ignition device 32 which ignites the fuel Fu sprayed through the fuel spray nozzle 30; an air supply fan 40 which supplies air Ar necessary to combust the fuel Fu to the combustion chamber 20 through the outlet port 22; and a transfer pipe 50 to evaporate the fuel Fu sprayed in an obliquely radial fashion toward an inner circumference of the combustion chamber 20 through the fuel spray nozzle 30.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a combustion apparatus (burner) that can efficiently and completely burn fuels such as heavy oil, light oil, and kerosene to generate a flame with a desired thermal power.

  Conventionally, when the above-described fuel is burned, for example, not only a considerable amount of heat is required to burn the liquefied fuel, but it also takes time to burn, so the liquefied fuel is burned. Rather, it is possible to burn the fuel in a vaporized state more efficiently.

As a combustion apparatus for vaporizing and burning the fuel described above, for example, a heating combustion apparatus including a vaporization chamber 15 for vaporizing liquefied fuel injected from the fuel injection nozzle 6 has been proposed. (See Patent Document 1). This combustion apparatus for heating derives unvaporized fuel injected from the fuel injection nozzle 6 into the rear cylinder 5 constituting the cylinder 1 to the outside of the rear cylinder 5 from the through hole 14. It introduce | transduces in the vaporization chamber 15 provided between the part cylinder 3 and the rear cylinder 5. FIG.
The fuel introduced into the vaporizing chamber 15 is heated and vaporized by the flame in which the fuel is burned in the rear cylinder 5, and the vaporized fuel is reintroduced into the rear cylinder 5 from the through holes 14 and burned. However, it has the structure which leads out from the through-hole 9 and supplies it in the front cylinder 3 (refer FIG. 4, FIG. 5 in literature).

However, the through hole 14 formed in the rear cylinder 5 is provided with a hole for leading the unvaporized fuel injected from the fuel injection nozzle 6 to the outside of the rear cylinder 5, and the vaporized fuel is supplied to the rear cylinder 5. Since it also serves as a hole for introducing the fuel into the inside, the operation of leading the unvaporized fuel out of the rear cylindrical body 5 and the operation of introducing the vaporized fuel into the rear cylindrical body 5 are disturbed. become.
That is, since the efficiency of vaporizing the unvaporized fuel and the efficiency of burning the vaporized fuel are deteriorated, it is difficult to completely burn the fuel injected from the fuel injection nozzle 6. In addition, poor combustion and insufficient thermal power are likely to occur, and the combustion efficiency of the entire apparatus is also reduced.

JP 61-223417 A

  An object of the present invention is to provide a combustion apparatus that can efficiently and completely burn fuels such as heavy oil, light oil, and kerosene, and can generate a flame with a desired thermal power.

  The present invention includes a cylindrical combustion chamber having a blowing port on one end side and a blowing port on the other end side, a fuel injection nozzle for injecting fuel from the blowing port into the combustion chamber, An ignition means for igniting the fuel injected from the fuel injection nozzle; and an air supply means for supplying air necessary when the fuel burns from the inlet toward the combustion chamber. In the inner periphery, a transfer path that allows transfer of the fuel and the air is provided from the blowing port toward the blowing port, and the fuel and the one end side corresponding to the blowing port in the transfer path One end side opening that allows the air to be blown out is provided, and the other end side corresponding to the blowing port in the transfer path is provided with the other end side opening that is allowed to blow in the fuel and the air, The transfer path to the transfer path Communicating with the interior, characterized in that blown from the fuel injection nozzle of the fuel injected obliquely radially toward the inner periphery of the combustion chamber is a combustion apparatus provided with a hole to be allowed.

  The fuel can be composed of, for example, heavy oil, light oil, and kerosene. The fuel injection nozzle can be composed of, for example, a one-hole fuel injection nozzle, a two-hole fuel injection nozzle, or the like. The ignition means can be constituted by, for example, a heater, a piezoelectric ignition device, or the like. The air supply means can be configured by an air supply fan such as a plate fan or a turbo fan, for example.

According to the present invention, for example, fuel such as heavy oil, light oil, and kerosene can be efficiently vaporized and completely burned, and a flame with a desired thermal power can be generated.
More specifically, fuel in an unvaporized state (for example, mist-like fuel) injected from the fuel injection nozzle is injected from the inlet toward the center and inner periphery of the combustion chamber, and at the inner periphery of the combustion chamber. The fuel that is injected obliquely radially is sprayed to the portion of the transfer path provided in the inner periphery of the combustion chamber where the hole is provided, and is injected from the hole toward the transfer path.

  A flame in which air necessary for combustion of fuel is supplied from an air inlet to the combustion chamber through an air supply means, and the fuel injected from the fuel injection nozzle is ignited by the ignition means, and the fuel burns. Is blown out vigorously from the outlet toward the outside of the combustion chamber.

  Since the transfer path provided in the inner periphery of the combustion chamber is heated by the heat of the flame in which the above-mentioned fuel is burned, the fuel blown into the transfer path can be heated to a temperature at which the fuel is vaporized. Thereby, vaporization of the fuel is promoted in the transfer path and can be efficiently vaporized (gasified).

  The vaporized fuel vaporized in the transfer path is transferred from the other end side opening of the transfer path toward the one end side opening by the transfer force of air blown from the other end side opening of the transfer path. When the air is blown out from the side opening toward the blowout port, it is burned while joining the flame blown out from the blowout port of the combustion chamber, and is blown out vigorously from the blowout port of the combustion chamber.

As a result, the fuel injected from the fuel injection nozzle can be efficiently vaporized and completely burned, and a flame with a desired heating power can be reliably generated.
Moreover, compared to burning unvaporized (liquefied) fuel, it is more reliable to burn vaporized fuel to ensure complete combustion, thus preventing the occurrence of poor combustion and lack of thermal power. And the combustion efficiency of the whole combustion apparatus can be improved more.
Further, since the vaporized fuel is burned, the fuel consumption can be kept low and the combustion cost can be reduced.

  The above-mentioned combustion apparatus includes, for example, PCB (polychlorinated biphenyl), flammable waste, garbage, sludge, sewage, manure, waste oil, waste liquid, paint, tire, synthetic resin molded article, etc., used syringe It can also be used in burners for incineration of incineration materials such as medical waste such as gauze and bandages, or burners for operating boilers for power generation and heating.

  In addition, when processing wood from oats that are generated when whitening grains such as rice and brown rice, or squeezed when squeezing soy milk, the air supplied into the combustion chamber by the air supply means Combustible materials such as generated wooden chips (including wood chips) may be mixed, and the above-mentioned combustible materials can be used as fuel.

  As an aspect of the present invention, the opening on the other end side in the transfer path is provided at a predetermined interval with respect to an inner wall corresponding to the injection port in the combustion chamber, and from the fuel injection nozzle to the combustion chamber. It can be provided at a position closer to the injection port side than the fuel injection line injected obliquely radially toward the inner periphery.

According to this invention, the fuel injected diagonally radially from the fuel injection nozzle can be more reliably vaporized and completely burned.
More specifically, the fuel injected obliquely radially from the fuel injection nozzle toward the inner periphery of the combustion chamber can be reliably blown to the portion of the transfer path provided with the hole.
Thereby, the fuel injected from the fuel injection nozzle can be prevented from being blown into the transfer path from the opening on the other end side, and the fuel injected obliquely radially from the fuel injection nozzle is transferred from the hole into the transfer path. Can be reliably blown toward.

For example, mist-like fuel injected obliquely radially from a fuel injection nozzle is blown into the transfer path heated by the heat of the flame and vaporized, so that the fuel in an unvaporized state (liquefied state) is heated and vaporized. Compared to this, heating and vaporizing fuel in a vaporized state allows more efficient combustion and requires less heat during heating.
As a result, the fuel injected from the fuel injection nozzle can be efficiently vaporized in a shorter time.

  In addition, as an aspect of the present invention, transfer of air supplied from the air supply means from the air inlet to the air outlet is allowed between the inner periphery of the combustion chamber and the outer periphery of the transfer path. There can be a passage.

According to this invention, the fuel blown into the transfer path can be vaporized more stably.
More specifically, the air supplied from the air supply means is blown from the blowing port toward the center and inner periphery of the combustion chamber, and the air blown into the center of the combustion chamber is fuel injected from the fuel injection nozzle. Is consumed when burning.

On the other hand, the air blown toward the inner circumference of the combustion chamber is blown to the inner circumference of the combustion chamber exposed between the blow-in port in the combustion chamber and the other end side opening in the transfer path. The air blown to the inner periphery of the combustion chamber is sent from the inlet side into a passage provided between the inner periphery of the combustion chamber and the outer periphery of the transfer path, and blown from the inlet side along the passage. It is transferred toward the mouth side.
Thus, heat exchange is performed between the air transferred through the passage and the combustion chamber and the transfer path, so that the inner periphery of the combustion chamber and the outer periphery of the transfer path are air-cooled by contact with the air.

As a result, the transfer path can be maintained at a temperature at which fuel vaporization is promoted, and the fuel can be prevented from being heated to a temperature higher than the temperature at which the fuel vaporizes.
In addition, since the heat insulating action of the fuel transferred in the transfer path and the air transferred in the path is obtained synergistically, it is possible to prevent the combustion chamber and the transfer path from being dissolved, and to have heat resistance and fire resistance. Can be improved.

  Further, as an aspect of the present invention, the transfer path is constituted by a cylindrical transfer pipe provided with the one end side opening and the other end side opening, and the transfer pipe is formed with respect to the inner periphery of the combustion chamber. The plurality of holes are arranged in the circumferential direction along the inner periphery of the combustion chamber, and the hole is formed in the radial center of the combustion chamber in the transfer pipe. Can be provided at a predetermined interval in the axial direction with respect to the corresponding peripheral surface.

According to this invention, the fuel injected diagonally radially from the fuel injection nozzle can be vaporized more efficiently and completely burned.
More specifically, the fuel injected obliquely radially from the fuel injection nozzle is sprayed on the peripheral surface provided with holes in the plurality of transfer pipes arranged along the inner periphery of the combustion chamber, and is heated by the heat of the flame. Then, each of the plurality of transfer pipes is vaporized by being blown from a plurality of holes provided on the peripheral surface of the transfer pipe.
As a result, substantially all of the fuel that is injected obliquely radially from the fuel injection nozzle can be vaporized more efficiently and can be completely burned more reliably.

  As an aspect of the present invention, the hole portion can be inclined at an angle corresponding to the injection direction of the fuel that is injected obliquely radially from the fuel injection nozzle toward the inner periphery of the combustion chamber.

According to the present invention, the fuel injected obliquely radially from the fuel injection nozzle can be more reliably blown into the transfer path or the transfer pipe.
More specifically, for example, when the hole is provided at an angle that intersects the injection direction of the fuel that is obliquely injected radially from the fuel injection nozzle, the amount of fuel injected into the transfer pipe is limited by the hole. For this reason, the amount of fuel injected into the combustion chamber is greater than the amount of fuel injected into the transfer pipe.

On the other hand, since the hole part of this embodiment inclines at the angle corresponding to the injection direction of the fuel injected diagonally radially from the fuel injection nozzle, the fuel injected diagonally radially from the fuel injection nozzle , Can be actively blown into the transfer pipe from the hole. As a result, the amount of fuel blown into the transfer pipe can be increased.
As a result, the fuel injected obliquely radially from the fuel injection nozzle can be reliably and efficiently vaporized in the transfer pipe, and the combustion efficiency of the entire combustion apparatus can be further increased.

  Further, as an aspect of the present invention, a concentric circle is fixed to the combustion chamber at a central portion in the radial direction, the one end side corresponding to the outlet of the combustion chamber is closed, and the inlet of the combustion chamber is Corresponding other end side is provided with a cylindrical flame blowing cylinder, and the flame blown toward the center of the flame blowing cylinder in the radial direction is outside the diameter of the flame blowing cylinder. A plurality of flame blowing holes that are allowed to blow in the direction can be provided.

According to this invention, it is possible to more efficiently generate a flame having a desired heating power.
More specifically, a flame in which the fuel injected from the fuel injection nozzle is burned is blown toward the radial center of the flame blowing cylinder, and the diameter of the flame blowing holes provided on the peripheral surface of the flame blowing cylinder is reduced. Blow outward.

  A part of the flame that is blown toward the radial center of the flame blowing cylinder is shunted radially outward by hitting one end of the flame blowing cylinder, and the shunted flame is divided into the inner circumference of the flame blowing cylinder. Blow out from the other end side opening toward the blowing port along the surface.

  While combining the flame blown out from the flame blowout hole of the flame blowout cylinder with the flame blown out from the opening on the other end side of the flame blowout cylinder and the flame blown into the combustion chamber from the blowout opening, It blows out vigorously from the outlet.

  Since a swirling flow of flame occurs between the flame blown toward the radial center of the flame blowing cylinder and the flame blown from the opening on the other end side along the inner peripheral surface of the flame blowing cylinder, Not only does the central part of the spiral part in the flame become high temperature, it also becomes a fire type for completely burning the fuel.

  Further, the fuel vaporized in the transfer path (specifically, in the transfer pipe) provided along the inner periphery of the combustion chamber is blown out from the opening on one end side of the transfer path toward the outlet, and combustion is performed. Burn while joining the flame blown from the blowout opening of the chamber.

  As a result, the fuel injected from the fuel injection nozzle can be completely burned more reliably, and even if unburned fuel remains in the combustion chamber, it can be burned more reliably, with the desired thermal power. A flame is obtained.

Moreover, as an aspect of the present invention, the portion heated by the flame can be covered with a heat resistant cement formed by adding a hydrophilic inorganic polymer solution having heat resistance.
Here, the part heated by the flame is, for example, the inner peripheral surface of the combustion chamber, the inner peripheral surface of the air supply fan and the outer surface of the blade, the entire peripheral surface of the flame blowing cylinder, the inner peripheral surface of the one end side of the air supply path Or the like.

According to this invention, the heat resistance and fire resistance of the combustion apparatus can be further improved.
More specifically, in the combustion apparatus of the present embodiment, a part that is heated directly or indirectly by a flame (specifically, the inner periphery of the combustion chamber, the inner periphery of the fan main body and the outer surface of the blade in the air supply fan, Cover the entire circumference of the flame blowing cylinder, the inner circumference of the air supply path, etc.) with heat-resistant cement to which a hydrophilic inorganic polymer solution (specifically, product name = MSL “Metal Silicon Liquid”) is added. ing.
Thereby, for example, even if a high-temperature flame is generated in which a metal having heat resistance and fire resistance is dissolved, the portion heated by the flame in the combustion apparatus can be prevented from melting.

As a result, the heat resistance and fire resistance of the combustion apparatus are improved, and a function sufficient to generate a flame with a desired thermal power can be stably obtained over a long period of time.
In addition, the hydrophilic inorganic polymer solution contained in heat-resistant cement contains abundant sodium (Na). For example, it has the property of capturing chlorine generated during combustion and replacing it with sodium chloride, so it generates dioxins. The effect which suppresses is acquired.

  According to the present invention, for example, it is possible to provide a combustion apparatus that can efficiently and completely burn fuels such as heavy oil, light oil, and kerosene, and can generate a flame with a desired thermal power.

Sectional drawing which divided the combustion chamber in the combustion apparatus of Example 1 into the axial direction. The MM line | wire cut end elevation of the combustion chamber shown in FIG. Sectional drawing of the air supply path in an air supply fan. The perspective view of the transfer pipe | tube which provided the arc-shaped or round hole. Sectional drawing which divided the combustion chamber in the combustion apparatus of Example 2 to the axial direction. The NN line | wire cutting end elevation of the combustion chamber shown in FIG. The perspective view which shows the other example of the transfer pipe which provided the hole part diagonally.

An embodiment of the present invention will be described in detail with reference to the drawings.
Example 1
1 is a cross-sectional view of the combustion chamber 20 of the combustion apparatus 10 according to the first embodiment divided in the axial direction Y, FIG. 2 is an end view taken along the line MM of the combustion chamber 20 shown in FIG. It is sectional drawing of the air supply path 60 in.

  A combustion apparatus 10 (burner) according to the first embodiment includes a cylindrical combustion chamber 20 having an outlet 21 on one end side Ya in the axial direction Y of the apparatus body 10a and an inlet 22 on the other end Yb; A fuel injection nozzle 30 that injects fuel Fu in an unvaporized state (liquefied state) from the inlet 22 into the combustion chamber 20; an ignition device 32 that ignites the fuel Fu injected from the fuel injection nozzle 30; A plate fan type air supply fan 40 for supplying air Ar required when the fuel Fu burns from the inlet 22 into the combustion chamber 20, and a slant from the fuel injection nozzle 30 toward the inner periphery of the combustion chamber 20. And a transfer pipe 50 for vaporizing (gasifying) the radially injectable fuel Fu.

The combustion chamber 20 is formed in a substantially cylindrical shape with a metal having heat resistance and fire resistance, and is supported in a horizontally placed state by a support means (not shown).
At one end side Ya in the axial direction Y of the combustion chamber 20, an air outlet 21 that allows the flame FH to be generated when the fuel Fu burns is opened. On the other end side Yb in the axial direction Y, an air inlet 22 that allows the fuel Fu, the flame FH, the air Ar, and the combustible D to be injected is opened.

The fuel injection nozzle 30 is a one-hole type nozzle that injects fuel Fu radially, and is connected to the radial center P1 of the air inlet 22 in the combustion chamber 20, that is, the air inlet 22 in the air supply fan 40. The air outlet 43 is arranged at the center P1 in the radial direction.
An injection hole (not shown) for injecting fuel Fu from the injection port 22 toward the center and the inner periphery of the combustion chamber 20 is provided at the tip of the fuel injection nozzle 30.

One end of a fuel supply pipe 30a is connected to the fuel injection nozzle 30 via a pump and a valve (not shown). The other end of the fuel supply pipe 30a is connected to a fuel supply source 31 that supplies fuel Fu.
An ignition device 32 that ignites the fuel Fu injected from the fuel injection nozzle 30 (specifically, a heater, a piezoelectric element) is provided in an ignition allowable region where the fuel Fu injected from the fuel injection nozzle 30 is allowed to ignite. Ignition device).
The injection nozzle 30 and the ignition device 32 are supported by a frame holder 33 provided on the inner peripheral surface of the air outlet 43.

  The transfer pipe 50 is formed in a substantially cylindrical shape from a metal having heat resistance and fire resistance, and is parallel to the axial direction Y from the inlet 22 side toward the outlet 21 with respect to the inner peripheral surface of the combustion chamber 20. Are arranged in the circumferential direction X along the inner peripheral surface of the combustion chamber 20 (see FIGS. 1 and 2).

One end side Ya in the axial direction Y corresponding to the blowout port 21 in the transfer pipe 50 is provided with one end side opening 51 that allows the fuel Fu that is vaporized (gasified) toward the blowout port 21 to be blown out. Yes.
The other end side Yb in the axial direction Y corresponding to the blowing port 22 in the transfer pipe 50 is provided with the other end side opening 52 that allows the fuel Fu injected from the fuel injection nozzle 30 to be blown.
The openings 51 and 52 allow the air Ar and the combustible D to be blown out and blown in.

The total length in the axial direction Y from the one end side opening 51 to the other end side opening 52 in the transfer pipe 50 is set to be shorter than the total length in the axial direction Y from the outlet 21 to the inlet 22 in the combustion chamber 20. ing.
The one end side opening 51 in the transfer pipe 50 is provided at a position closer to the indoor side than the outlet 21 in the combustion chamber 20.

  The other end side opening 52 in the transfer pipe 50 is on the indoor side of the combustion chamber 20 with respect to the inlet 22, and the fuel Fu is injected radially from the fuel injection nozzle 30 toward the inner periphery of the combustion chamber 20. It is provided at a position closer to the blowing port 22 side than the line. The other end side opening 52 is provided at a predetermined interval with respect to the inner wall corresponding to the inlet 22 in the combustion chamber 20.

The peripheral surface of the transfer pipe 50 corresponding to the central portion in the radial direction of the combustion chamber 20 communicates with the inside of the transfer pipe 50 and has an arc shape that allows the injection of fuel Fu injected from the fuel injection nozzle 30. A hole 53 is provided (see FIG. 4A).
A plurality of holes 53 are arranged at predetermined intervals in the axial direction Y (longitudinal direction) with respect to the peripheral surface of the transfer pipe 50, and obliquely radiate from the fuel injection nozzle 30 with respect to the peripheral surface of the transfer pipe 50. It is provided at an angle that intersects the injection direction of the injected fuel Fu. Specifically, it is provided in the radial direction orthogonal to the axial direction Y of the transfer pipe 50.

If the shape and number of the holes 53 are changed, the amount of fuel Fu injected into the transfer pipe 50 can be adjusted accordingly.
Specifically, if the hole 53 is made smaller, the amount of fuel Fu blown from the hole 53 into the transfer pipe 50 is reduced, and the amount of vaporized fuel Fu blown from the one end side opening 51 is reduced. Therefore, the fire power of the flame FH blown out from the blow-out port 21 of the combustion chamber 20 can be weakened.

  On the contrary, if the hole 53 is enlarged, the amount of fuel Fu blown into the transfer pipe 50 from the hole 53 increases and the amount of vaporized fuel Fu blown from the one end side opening 51 increases. Therefore, the heating power of the flame FH blown out from the blowout port 21 of the combustion chamber 20 can be increased.

Between the outer periphery of the transfer pipe 50 and the inner periphery of the combustion chamber 20, the air Ar (including the fuel Fu and the combustible D) is transferred from the inlet 22 to the outlet 21 in the combustion chamber 20. Is formed in parallel with the axial direction Y.
The passage 23 arranges the cylindrical transfer pipes 50 so as to be adjacent to each other in the circumferential direction X along the inner peripheral surface of the combustion chamber 20, and the outer peripheral surfaces of the adjacent transfer pipes 50 to each other with respect to the circumferential direction X. By arranging them in contact with each other, they are formed between the outer periphery of the adjacent transfer pipe 50 and the inner periphery of the combustion chamber 20.
The total length of the passage 23 is set to a length corresponding to the total length in the axial direction Y from the one end side opening 51 to the other end side opening 52 in the transfer pipe 50.

  The air supply fan 40 includes a fan main body 41 formed of a metal having heat resistance and fire resistance, and a plurality of blades 42. The air outlet 43 of the fan main body 41 is connected to the inlet 22 of the combustion chamber 20. One end of an air supply path 60 (specifically, the main supply path 61) is connected to the air suction port 44 of the fan body 41.

The plurality of blades 42 are rotated in the supply direction Z by the driving force of the motor 45 directly connected to one side of the fan main body 41, and the air Ar and the combustible D are sucked into the air suction port 44 side. Generate negative pressure.
That is, the air Ar in which the combustible D is uniformly diffused or only the air Ar is sucked from the air suction port 44 of the fan main body 41 and supplied toward the air blowing port 43 (see FIGS. 1 and 3). .

The air supply path 60 is constituted by an air Ar in which the combustible D is uniformly diffused, or a main supply path 61 that is allowed to supply only the air Ar. One end side of the main supply path 61 is connected to the air suction port 44 of the fan body 41 in the air supply fan 40. The other end side of the main supply path 61 is connected to the combustible material storage unit 70 that stores the combustible material D (specifically, rice bran dried to a desired water content).
In addition, the above-mentioned to-be-combusted material storage part 70 is comprised by the to-be-combusted material storage part described in the patent 55099797.

  A portion of the combustion apparatus 10 that is directly or indirectly heated by the flame FH, specifically, the inner periphery of the combustion chamber 20, the inner periphery of the fan main body 41 in the air supply fan 40, and the outer surface of the blade 42. The hydrophilic inorganic polymer solution (specifically, product name = MSL “ It is covered with heat-resistant cement C to which “metal, silicon, liquid” is added.

A temperature sensor 24 for detecting the temperature of the flame FH blown from the blow-out port 21 is provided on the inner periphery of the combustion chamber 20 on the blow-out port 21 side.
The fuel injection nozzle 30 and the air supply fan 40 described above are controlled by a control device (not shown) based on a detection signal output from the temperature sensor 24. The control device incorporates a CPU, a ROM, and a RAM (not shown), and the CPU controls driving and stopping of the fuel injection nozzle 30 and the air supply fan 40 in accordance with a program stored in the ROM. .

  Based on the detection signal output from the temperature sensor 24, the CPU determines whether or not the temperature of the flame FH blown from the blowout port 21 of the combustion chamber 20 is within the temperature range stored in advance in the RAM. To do.

Based on the above determination result, the injection amount of the flame FH injected from the fuel injection nozzle 30 (specifically, the injection amount of the fuel Fu) and the supply amount of the air Ar supplied by the air supply fan 40 are variable. Adjust.
Thereby, the thermal power of the flame FH which blows off from the blower outlet 21 of the combustion chamber 20 is weakened or strengthened.

An operation of generating a desired flame FH by the combustion apparatus 10 of the first embodiment configured as described above will be described.
First, the fuel Fu in an unvaporized state (liquefied state) injected from the fuel injection nozzle 30 is injected from the blowing port 22 toward the center and the inner periphery of the combustion chamber 20 and the inner periphery of the combustion chamber 20. The fuel Fu that is injected obliquely radially toward the surface is sprayed to the peripheral surface provided with the holes 53 in the plurality of transfer pipes 50 arranged along the inner periphery of the combustion chamber 20, and a plurality of fuel Fu provided on the peripheral surface The holes 53 are blown into the transfer pipe 50 (see FIGS. 1 and 2).

  Air Ar required when the fuel Fu burns is supplied from the air inlet 22 into the combustion chamber 20 by the air supply fan 40, and the fuel Fu injected from the fuel injection nozzle 30 is ignited by the ignition device 32. Then, the flame FH combusted by the fuel Fu is blown out vigorously toward the outside of the combustion chamber 20 from the blowout port 21 (see FIG. 3).

  In order to heat the plurality of transfer pipes 50 arranged on the inner periphery of the combustion chamber 20 substantially uniformly by the heat of the flame FH in which the fuel Fu is burned, the fuel Fu in an unvaporized state blown into the transfer pipe 50 is used. It can be heated to the vaporizing temperature. Thereby, vaporization of the fuel Fu is promoted in the transfer pipe 50, and can be efficiently vaporized (gasified).

The fuel Fu in the vaporized state vaporized in the transfer pipe 50 is injected with the fuel Fu injected from the fuel injection nozzle 30 and the transfer force of the air Ar blown into the transfer pipe 50 from the other end side opening 52. Thus, the sheet is transferred from the other end side opening 52 toward the one end side opening 51.
When the fuel Fu in a vaporized state is blown out from the one end side opening 51 toward the blowout port 21, the fuel Fu is burned while being merged with the flame FH blown out from the blowout port 21, and is discharged from the blowout port 21 to the outside of the combustion chamber 20. The air is blown out vigorously (see FIGS. 1 and 2).

As a result, the fuel Fu injected from the fuel injection nozzle 30 can be reliably vaporized and efficiently burned completely, and a desired flame FH can be reliably generated.
In addition, combustion of the vaporized fuel Fu is more reliable than combustion of the fuel Fu in an unvaporized state (liquefied state), so that complete combustion can be surely prevented. And the combustion efficiency of the entire combustion apparatus 10 can be further increased.
Furthermore, since the vaporized fuel Fu is burned, the consumption of the fuel Fu can be kept low, and the combustion cost can be reduced.

Further, the air Ar blown toward the inner periphery of the combustion chamber 20 from the blow port 22 is exposed between the blow port 22 in the combustion chamber 20 and the other end side opening 52 in the transfer pipe 50. Sprayed against the inner periphery of the combustion chamber 20.
Air Ar blown to the inner periphery of the combustion chamber 20 is fed into the passage 23 from the blow port 22 and is transferred along the passage 23 from the blow port 22 side toward the blow port 21 side.
That is, since heat exchange is performed between the air Ar transferred in the passage 23 and the combustion chamber 20 and the transfer pipe 50, the inner periphery of the combustion chamber 20 and the outer periphery of the transfer pipe 50 are brought into contact with the air Ar. Air cooled.

By the above heat exchange, the transfer pipe 50 can be maintained at a temperature at which vaporization of the fuel Fu is promoted, and the fuel Fu can be prevented from being heated to a temperature higher than the vaporization temperature. The fuel Fu injected into the fuel can be vaporized more stably.
In addition, since the heat insulating action by the fuel Fu transferred in the transfer pipe 50 and the air Ar transferred in the passage 23 is obtained synergistically, the combustion chamber 20 and the transfer pipe 50 can be prevented from melting. , Heat resistance and fire resistance can be improved.

  Furthermore, the fuel Fu injected obliquely and radially from the fuel injection nozzle 30 is sprayed on the peripheral surface provided with the holes 53 in the plurality of transfer pipes 50 arranged along the inner periphery of the combustion chamber 20, and the flame FH. In the plurality of transfer pipes 50 heated by the heat of the gas, the gas is blown and vaporized from the plurality of holes 53 provided on the peripheral surface of the transfer pipe 50, so that almost all of them are injected obliquely radially from the fuel injection nozzle 30. The fuel Fu can be vaporized more efficiently and can be completely burned more reliably.

Furthermore, the inner periphery of the combustion chamber 20 heated directly or indirectly by the flame FH, the inner periphery of the fan body 41 and the outer surface of the blade 42 in the air supply fan 40, and the entire surface of the transfer pipe 50 (the inner periphery and the outer periphery). ) Since the inner circumference of the air supply path 60 is covered with a heat-resistant cement C to which a hydrophilic inorganic polymer solution is added, a high-temperature flame FH in which a metal having heat resistance and fire resistance is dissolved. Even if it generates, it can prevent that the combustion chamber 20, the air supply fan 40, the transfer pipe 50, and the air supply path 60 melt | dissolve.
As a result, the heat resistance and fire resistance of the combustion apparatus 10 are further improved, and a function sufficient to generate the desired flame FH can be stably obtained over a long period of time.

  In addition, the hydrophilic inorganic polymer solution contained in heat-resistant cement C contains abundant sodium (Na) and has the property of capturing chlorine generated during combustion and replacing it with sodium chloride. The effect of suppressing is acquired.

  Hereinafter, other examples of the above-described combustion apparatus 10 will be described. In this description, parts that are the same as or equivalent to those in the above configuration are denoted by the same reference numerals, and detailed description thereof is omitted.

(Example 2)
The combustion apparatus 10 of the second embodiment in which a cylindrical flame blowing cylinder 80 is fixed concentrically at the radial center in the combustion chamber 20 will be described.
FIG. 5 is a cross-sectional view of the combustion chamber 20 in the combustion apparatus 10 of the second embodiment divided in the axial direction Y, and FIG. 6 is an end view taken along the line NN of the combustion chamber 20 shown in FIG.

  More specifically, a cylindrical flame blowing cylinder 80 disposed at the center in the radial direction inside the combustion chamber 20 is supported by a support (not shown), and a concentric circle sharing one radial center P1 with the combustion chamber 20. It is fixed to.

  The flame blowing cylinder 80 is formed in a substantially cylindrical shape with a metal having heat resistance and fire resistance. The axial length Y of the flame blowing cylinder 80 is shorter than the overall length Y of the combustion chamber 20, and the outer diameter of the flame blowing cylinder 80 is smaller than the inner diameter of the combustion chamber 20.

  One end side Ya in the axial direction Y of the flame blowing cylinder 80 is closed by a closing portion 81 that prevents the flame FH from blowing out. On the other end side Yb of the flame blowing cylinder 80 in the axial direction Y, an opening 82 that allows the flame FH, the air Ar, and the combustible D to be blown is opened toward the blowing port 22 of the combustion chamber 20. ing.

  A number of flames are formed on the outer peripheral surface of the flame blowing cylinder 80 other than the blocking portion 81 so that the flame FH supplied from the fuel injection nozzle 30 is allowed to blow out in the radially outward direction of the flame blowing cylinder 80. A blowout hole 83 is provided.

  The flame blowing holes 83 are formed so as to penetrate in the radial direction of the flame blowing cylinder 80, and are spaced apart from each other in the circumferential direction X and the axial direction Y along the outer peripheral surface of the flame blowing cylinder 80 other than the closing portion 81. Arranged.

The operation of generating the desired flame FH by the combustion apparatus 10 of the second embodiment configured as described above will be described.
First, the mist-like fuel Fu injected from the fuel injection nozzle 30 is injected from the blowing port 22 toward the center and inner periphery of the combustion chamber 20 and obliquely radially toward the inner periphery of the combustion chamber 20. The mist-like fuel Fu injected to the inner surface of the combustion chamber 20 is sprayed to the peripheral surface provided with the hole portions 53 in the plurality of transfer pipes 50 and from the plurality of hole portions 53 provided on the peripheral surface. Each is blown into the transfer pipe 50 (see FIGS. 5 and 6).

  On the other hand, the flame FH obtained by burning the fuel Fu in an unvaporized state (liquefied state) injected from the fuel injection nozzle 30 is blown toward the radial center P1 of the flame blowing cylinder 80, and the flame blowing cylinder 80 The plurality of flame blowing holes 83 provided on the peripheral surface are blown in the radially outward direction.

  A part of the flame FH blown toward the radially central portion P1 of the flame blowing cylinder 80 is applied to the closed portion 81 of the flame blowing cylinder 80 and diverted radially outward, and the divided flame FH is blown out of the flame. Blowing is performed from the opening 82 toward the blowing port 22 along the inner peripheral surface of the tube 80.

  A flame FH blown from the opening 82 of the flame blowing cylinder 80 and a flame FH blown into the combustion chamber 20 from the blowing port 22 into the flame FH blown from the flame blowing hole 83 of the flame blowing cylinder 80 , The air is blown out vigorously from the air outlet 21 of the combustion chamber 20.

  A swirling flow of the flame FH is generated between the flame FH blown toward the radially central portion P1 of the flame blowing cylinder 80 and the flame FH blown from the opening 82 along the inner peripheral surface of the flame blowing cylinder 80. As a result, the center of the spiral portion in the flame FH not only becomes high temperature, but also becomes a fire type for completely burning the fuel Fu.

  Further, when the fuel Fu vaporized in the plurality of transfer pipes 50 arranged on the inner periphery of the combustion chamber 20 is blown out from the one end side opening 51 of the transfer path 50 toward the blowout port 21, the combustion chamber 20. The fuel is burned while being joined to the flame FH blown from the blowout port 21, and blown out vigorously from the blowout port 21 of the combustion chamber 20.

As a result, the fuel Fu injected from the fuel injection nozzle 30 can be completely burned more reliably.
Even if unburned fuel Fu or a combusted material in place of fuel Fu remains in combustion chamber 20, complete combustion can be performed more reliably, and flame FH having a desired thermal power can be more reliably obtained.
For this reason, there can exist an effect | action and effect substantially equivalent to the above-mentioned Example 1 or more than equivalent.

In the correspondence between the configuration of the present invention and the embodiment,
The ignition means of the present invention corresponds to the ignition device 32 of the embodiment,
Similarly,
The air supply means corresponds to the air supply fan 40,
The transfer path corresponds to the transfer pipe 50,
The present invention is not limited to the configuration of the above-described embodiment, but can be applied based on the technical idea shown in the claims, and many embodiments can be obtained.

In the first embodiment described above, an example in which the arc-shaped hole portion 53 is provided in the transfer pipe 50 has been described. However, for example, the shape may be changed to a desired shape such as a round shape, an oval shape, a rectangular shape, or a square shape. It is not limited only to the shape.
For example, a large number of round holes 54 may be arranged at predetermined intervals in the axial direction Y with respect to the peripheral surface of the transfer pipe 50 (see FIG. 4B). Alternatively, the holes 54 may be arranged alternately (for example, a staggered pattern).
If the hole diameter and the number of the holes 54 are changed, the amount of fuel Fu injected into the transfer pipe 50 can be adjusted accordingly.

Further, as shown in FIG. 7, the hole 53 is formed in the injection direction of the fuel Fu that is injected obliquely radially from the fuel injection nozzle 30 toward the inner periphery of the combustion chamber 20 with respect to the peripheral surface of the transfer pipe 50. You may incline to the corresponding angle.
More specifically, when the hole 53 is provided at an angle that intersects the injection direction of the fuel Fu injected obliquely radially from the fuel injection nozzle 30 (see FIG. 1), the hole 53 is blown into the transfer pipe 50. Since the amount of fuel injected is limited, the amount of fuel Fu injected into the combustion chamber 20 is larger than the amount of fuel Fu injected into the transfer pipe 50.

  On the other hand, by inclining the hole 53 at an angle corresponding to the injection direction of the fuel Fu injected obliquely radially from the fuel injection nozzle 30, the fuel Fu injected obliquely radially from the fuel injection nozzle 30 is reduced. , It can be reliably and positively blown into the transfer pipe 50 from the hole 53. Thereby, the blowing amount of the fuel Fu blown into the transfer pipe 50 can be increased.

As a result, the fuel Fu injected obliquely radially from the fuel injection nozzle 30 can be reliably and efficiently vaporized in the transfer pipe 50.
Moreover, since the vaporized fuel Fu blown out from the one end side opening 51 of the transfer pipe 50 is burned while being joined to the flame FH blown out from the blowout port 21, the combustion efficiency of the entire combustion apparatus 10 can be further increased. it can.

  Furthermore, in the configuration of the second embodiment in which the above-described flame blowing cylinder 80 is disposed in the combustion chamber 20, when the efficiency of vaporizing the fuel Fu is worse than that in the first embodiment, the number of transfer pipes 50 is Change the configuration so that the vaporization efficiency is substantially the same as or equal to or greater than that of the first embodiment, for example, by reducing the number of tubes in the first embodiment or by arranging a plurality of tubes having a diameter smaller than that of the transfer tube 50. May be.

Ar ... Air C ... Heat-resistant cement D ... Combustible material FH ... Flame Fu ... Fuel 10 ... Combustion device 20 ... Combustion chamber 21 ... Blow-in port 22 ... Blow-in port 23 ... Passage 30 ... Fuel injection nozzle 32 ... Ignition device 40 ... Air Supply fan 50 ... Transfer pipe 51 ... Opening on one end side 52 ... Opening on the other end side 53,54 ... Hole 60 ... Air supply passage 70 ... Combustible material storage part 80 ... Flame blowing cylinder 83 ... Flame blowing hole

  The present invention relates to a combustion apparatus (burner) that can efficiently and completely burn fuels such as heavy oil, light oil, and kerosene to generate a flame with a desired thermal power.

  Conventionally, when the above-described fuel is burned, for example, not only a considerable amount of heat is required to burn the liquefied fuel, but it also takes time to burn, so the liquefied fuel is burned. Rather, it is possible to burn the fuel in a vaporized state more efficiently.

As a combustion apparatus for vaporizing and burning the fuel described above, for example, a heating combustion apparatus including a vaporization chamber 15 for vaporizing liquefied fuel injected from the fuel injection nozzle 6 has been proposed. (See Patent Document 1). This combustion apparatus for heating derives unvaporized fuel injected from the fuel injection nozzle 6 into the rear cylinder 5 constituting the cylinder 1 to the outside of the rear cylinder 5 from the through hole 14. It introduce | transduces in the vaporization chamber 15 provided between the part cylinder 3 and the rear cylinder 5. FIG.
The fuel introduced into the vaporizing chamber 15 is heated and vaporized by the flame in which the fuel is burned in the rear cylinder 5, and the vaporized fuel is reintroduced into the rear cylinder 5 from the through holes 14 and burned. However, it has the structure which leads out from the through-hole 9 and supplies it in the front cylinder 3 (refer FIG. 4, FIG. 5 in literature).

However, the through hole 14 formed in the rear cylinder 5 is provided with a hole for leading the unvaporized fuel injected from the fuel injection nozzle 6 to the outside of the rear cylinder 5, and the vaporized fuel is supplied to the rear cylinder 5. Since it also serves as a hole for introducing the fuel into the inside, the operation of leading the unvaporized fuel out of the rear cylindrical body 5 and the operation of introducing the vaporized fuel into the rear cylindrical body 5 are disturbed. become.
That is, since the efficiency of vaporizing the unvaporized fuel and the efficiency of burning the vaporized fuel are deteriorated, it is difficult to completely burn the fuel injected from the fuel injection nozzle 6. In addition, poor combustion and insufficient thermal power are likely to occur, and the combustion efficiency of the entire apparatus is also reduced.

JP 61-223417 A

  An object of the present invention is to provide a combustion apparatus that can efficiently and completely burn fuels such as heavy oil, light oil, and kerosene, and can generate a flame with a desired thermal power.

The present invention includes a cylindrical combustion chamber having a blowing port on one end side and a blowing port on the other end side, a fuel injection nozzle for injecting fuel from the blowing port into the combustion chamber, An ignition means for igniting the fuel injected from the fuel injection nozzle; and an air supply means for supplying air necessary when the fuel burns from the inlet toward the combustion chamber. In the inner periphery, a cylindrical transfer pipe that allows the transfer of the fuel and the air from the blowing port toward the blowing port is provided, and at one end side corresponding to the blowing port in the transfer pipe , One end side opening that allows the fuel and the air to be blown out is provided, and the other end side opening that allows the fuel and the air to be blown into the other end of the transfer pipe corresponding to the blowing port. the provided the transfer pipe, before Thereby directed toward the blow port side from the blowout port side relative to the inner circumference of the combustion chamber, a plurality arranged in a circumferential direction along the inner circumference of the combustion chamber, the transfer pipe, the inside of the transfer tube A hole portion that is allowed to blow the fuel that is injected obliquely radially from the fuel injection nozzle toward the inner periphery of the combustion chamber, and the hole portion is formed in the combustion chamber in the transfer pipe. A plurality of combustion apparatuses are provided at predetermined intervals in the axial direction with respect to a circumferential surface corresponding to the radial central portion .

  The fuel can be composed of, for example, heavy oil, light oil, and kerosene. The fuel injection nozzle can be composed of, for example, a one-hole fuel injection nozzle, a two-hole fuel injection nozzle, or the like. The ignition means can be constituted by, for example, a heater, a piezoelectric ignition device, or the like. The air supply means can be configured by an air supply fan such as a plate fan or a turbo fan, for example.

According to the present invention, for example, fuel such as heavy oil, light oil, and kerosene can be efficiently vaporized and completely burned, and a flame with a desired thermal power can be generated.
More specifically, fuel in an unvaporized state (for example, mist-like fuel) injected from the fuel injection nozzle is injected from the inlet toward the center and inner periphery of the combustion chamber, and at the inner periphery of the combustion chamber. the fuel injected obliquely radially towards, blown to a hole provided part in the transfer pipe provided in the inner periphery of the combustion chamber is blown toward the hole in the transfer tube.

  A flame in which air necessary for combustion of fuel is supplied from an air inlet to the combustion chamber through an air supply means, and the fuel injected from the fuel injection nozzle is ignited by the ignition means, and the fuel burns. Is blown out vigorously from the outlet toward the outside of the combustion chamber.

The transfer tube provided in the inner periphery of the combustion chamber, for heating by the heat of the flame was burning fuel described above can be heated to a temperature to vaporize the fuel injected into the transfer tube. Accordingly, vaporization of the fuel is promoted in the transfer tube, it is possible to efficiently vaporized (gasified).

Fuel vaporization state of being vaporized in the transfer tube, by the transfer force of the air blown from the other end opening of the transfer tube, and transported toward the one end side opening from the other side opening of the transfer tube, one end When the air is blown out from the side opening toward the blowout port, it is burned while joining the flame blown out from the blowout port of the combustion chamber, and is blown out vigorously from the blowout port of the combustion chamber.

As a result, the fuel injected from the fuel injection nozzle can be efficiently vaporized and completely burned, and a flame with a desired heating power can be reliably generated.
Moreover, compared to burning unvaporized (liquefied) fuel, it is more reliable to burn vaporized fuel to ensure complete combustion, thus preventing the occurrence of poor combustion and lack of thermal power. And the combustion efficiency of the whole combustion apparatus can be improved more.
Further, since the vaporized fuel is burned, the fuel consumption can be kept low and the combustion cost can be reduced.

Furthermore, the fuel injected obliquely radially from the fuel injection nozzle is sprayed on the peripheral surface provided with the holes in the plurality of transfer pipes arranged along the inner periphery of the combustion chamber, and heated by the heat of the flame. Since a plurality of holes provided on the peripheral surface of the transfer pipe are blown into the plurality of transfer pipes for vaporization, substantially all of the fuel injected obliquely radially from the fuel injection nozzle can be more efficiently vaporized. At the same time, complete combustion can be achieved more reliably.

  The above-mentioned combustion apparatus includes, for example, PCB (polychlorinated biphenyl), flammable waste, garbage, sludge, sewage, manure, waste oil, waste liquid, paint, tire, synthetic resin molded article, etc., used syringe It can also be used in burners for incineration of incineration materials such as medical waste such as gauze and bandages, or burners for operating boilers for power generation and heating.

  In addition, when processing wood from oats that are generated when whitening grains such as rice and brown rice, or squeezed when squeezing soy milk, the air supplied into the combustion chamber by the air supply means Combustible materials such as generated wooden chips (including wood chips) may be mixed, and the above-mentioned combustible materials can be used as fuel.

As an aspect of the present invention, the other end side opening in the transfer pipe is provided at a predetermined interval with respect to an inner wall corresponding to the blowing port in the combustion chamber, and from the fuel injection nozzle to the combustion chamber. It can be provided at a position closer to the injection port side than the fuel injection line injected obliquely radially toward the inner periphery.

According to this invention, the fuel injected diagonally radially from the fuel injection nozzle can be more reliably vaporized and completely burned.
More specifically, the fuel injected obliquely radially from the fuel injection nozzle toward the inner periphery of the combustion chamber can be reliably blown to the portion of the transfer pipe provided with the hole.
Accordingly, the fuel injected from the fuel injection nozzle can be prevented to be blown into the transfer tube from the other end opening, the fuel injected obliquely radially from the fuel injection nozzle, the hole portion in the transfer tube Can be reliably blown toward.

For example, the atomized fuel injected from the fuel injection nozzle at an angle radially, for vaporizing blown into the transfer tube heated by the heat of the flame to heat the fuel in the unvaporized state (liquefied) vaporizing Compared to this, heating and vaporizing fuel in a vaporized state allows more efficient combustion and requires less heat during heating.
As a result, the fuel injected from the fuel injection nozzle can be efficiently vaporized in a shorter time.

In addition, as an aspect of the present invention, transfer of air supplied from the air supply means from the blowing port toward the blowing port is allowed between the inner periphery of the combustion chamber and the outer periphery of the transfer pipe. There can be a passage.

According to the invention, it is possible to more stably vaporize the fuel injected into the transfer tube.
More specifically, the air supplied from the air supply means is blown from the blowing port toward the center and inner periphery of the combustion chamber, and the air blown into the center of the combustion chamber is fuel injected from the fuel injection nozzle. Is consumed when burning.

On the other hand, the air blown toward the inner periphery of the combustion chamber is blown to the inner periphery of the combustion chamber that is exposed between the injection port in the combustion chamber and the other end side opening in the transfer pipe . The air blown to the inner periphery of the combustion chamber is sent from the inlet side into a passage provided between the inner periphery of the combustion chamber and the outer periphery of the transfer pipe , and blown from the inlet side along the passage. It is transferred toward the mouth side.
As a result, heat exchange is performed between the air transferred through the passage and the combustion chamber and the transfer pipe , so that the inner periphery of the combustion chamber and the outer periphery of the transfer pipe are air-cooled by contact with the air.

As a result, it is possible to keep the transfer pipe at a temperature at which vaporization of the fuel is promoted and to prevent the transfer pipe from being heated to a temperature higher than the temperature at which the fuel vaporizes.
Moreover, the fuel being transported through the transfer tube, since the heat insulating effect of the air being transported through the passage is obtained by synergy, it is possible to prevent the dissolution of the combustion chamber and the transfer tube, heat resistance, and fire Can be improved.

  As an aspect of the present invention, the hole portion can be inclined at an angle corresponding to the injection direction of the fuel that is injected obliquely radially from the fuel injection nozzle toward the inner periphery of the combustion chamber.

According to the invention, the fuel injected from the fuel injection nozzle at an angle radially, can be blown more reliably towards the transfer tube.
More specifically, for example, when the hole is provided at an angle that intersects the injection direction of the fuel that is obliquely injected radially from the fuel injection nozzle, the amount of fuel injected into the transfer pipe is limited by the hole. For this reason, the amount of fuel injected into the combustion chamber is greater than the amount of fuel injected into the transfer pipe.

On the other hand, since the hole part of this embodiment inclines at the angle corresponding to the injection direction of the fuel injected diagonally radially from the fuel injection nozzle, the fuel injected diagonally radially from the fuel injection nozzle , Can be actively blown into the transfer pipe from the hole. As a result, the amount of fuel blown into the transfer pipe can be increased.
As a result, the fuel injected obliquely radially from the fuel injection nozzle can be reliably and efficiently vaporized in the transfer pipe, and the combustion efficiency of the entire combustion apparatus can be further increased.

  Further, as an aspect of the present invention, a concentric circle is fixed to the combustion chamber at a central portion in the radial direction, the one end side corresponding to the outlet of the combustion chamber is closed, and the inlet of the combustion chamber is Corresponding other end side is provided with a cylindrical flame blowing cylinder, and the flame blown toward the center of the flame blowing cylinder in the radial direction is outside the diameter of the flame blowing cylinder. A plurality of flame blowing holes that are allowed to blow in the direction can be provided.

According to this invention, it is possible to more efficiently generate a flame having a desired heating power.
More specifically, a flame in which the fuel injected from the fuel injection nozzle is burned is blown toward the radial center of the flame blowing cylinder, and the diameter of the flame blowing holes provided on the peripheral surface of the flame blowing cylinder is reduced. Blow outward.

  A part of the flame that is blown toward the radial center of the flame blowing cylinder is shunted radially outward by hitting one end of the flame blowing cylinder, and the shunted flame is divided into the inner circumference of the flame blowing cylinder. Blow out from the other end side opening toward the blowing port along the surface.

  While combining the flame blown out from the flame blowout hole of the flame blowout cylinder with the flame blown out from the opening on the other end side of the flame blowout cylinder and the flame blown into the combustion chamber from the blowout opening, It blows out vigorously from the outlet.

  Since a swirling flow of flame occurs between the flame blown toward the radial center of the flame blowing cylinder and the flame blown from the opening on the other end side along the inner peripheral surface of the flame blowing cylinder, Not only does the central part of the spiral part in the flame become high temperature, it also becomes a fire type for completely burning the fuel.

Further, the fuel vaporized in the transfer pipe provided along the inner periphery of the combustion chamber is blown out from the opening on one end side of the transfer pipe toward the blowout port, and the flame blown out from the blowout port of the combustion chamber Burn while joining.

  As a result, the fuel injected from the fuel injection nozzle can be completely burned more reliably, and even if unburned fuel remains in the combustion chamber, it can be burned more reliably, with the desired thermal power. A flame is obtained.

Moreover, as an aspect of the present invention, the portion heated by the flame can be covered with a heat resistant cement formed by adding a hydrophilic inorganic polymer solution having heat resistance.
Here, the part heated by the flame is, for example, the inner peripheral surface of the combustion chamber, the inner peripheral surface of the air supply fan and the outer surface of the blade, the entire peripheral surface of the flame blowing cylinder, the inner peripheral surface of the one end side of the air supply path Or the like.

According to this invention, the heat resistance and fire resistance of the combustion apparatus can be further improved.
More specifically, in the combustion apparatus of the present embodiment, a part that is heated directly or indirectly by a flame (specifically, the inner periphery of the combustion chamber, the inner periphery of the fan main body and the outer surface of the blade in the air supply fan, Cover the entire circumference of the flame blowing cylinder, the inner circumference of the air supply path, etc.) with heat-resistant cement to which a hydrophilic inorganic polymer solution (specifically, product name = MSL “Metal Silicon Liquid”) is added. ing.
Thereby, for example, even if a high-temperature flame is generated in which a metal having heat resistance and fire resistance is dissolved, the portion heated by the flame in the combustion apparatus can be prevented from melting.

As a result, the heat resistance and fire resistance of the combustion apparatus are improved, and a function sufficient to generate a flame with a desired thermal power can be stably obtained over a long period of time.
In addition, the hydrophilic inorganic polymer solution contained in heat-resistant cement contains abundant sodium (Na). For example, it has the property of capturing chlorine generated during combustion and replacing it with sodium chloride, so it generates dioxins. The effect which suppresses is acquired.

  According to the present invention, for example, it is possible to provide a combustion apparatus that can efficiently and completely burn fuels such as heavy oil, light oil, and kerosene, and can generate a flame with a desired thermal power.

Sectional drawing which divided the combustion chamber in the combustion apparatus of Example 1 into the axial direction. The MM line | wire cut end elevation of the combustion chamber shown in FIG. Sectional drawing of the air supply path in an air supply fan. The perspective view of the transfer pipe | tube which provided the arc-shaped or round hole. Sectional drawing which divided the combustion chamber in the combustion apparatus of Example 2 to the axial direction. The NN line | wire cutting end elevation of the combustion chamber shown in FIG. The perspective view which shows the other example of the transfer pipe which provided the hole part diagonally.

An embodiment of the present invention will be described in detail with reference to the drawings.
Example 1
1 is a cross-sectional view of the combustion chamber 20 of the combustion apparatus 10 according to the first embodiment divided in the axial direction Y, FIG. 2 is an end view taken along the line MM of the combustion chamber 20 shown in FIG. It is sectional drawing of the air supply path 60 in.

  A combustion apparatus 10 (burner) according to the first embodiment includes a cylindrical combustion chamber 20 having an outlet 21 on one end side Ya in the axial direction Y of the apparatus body 10a and an inlet 22 on the other end Yb; A fuel injection nozzle 30 that injects fuel Fu in an unvaporized state (liquefied state) from the inlet 22 into the combustion chamber 20; an ignition device 32 that ignites the fuel Fu injected from the fuel injection nozzle 30; A plate fan type air supply fan 40 for supplying air Ar required when the fuel Fu burns from the inlet 22 into the combustion chamber 20, and a slant from the fuel injection nozzle 30 toward the inner periphery of the combustion chamber 20. And a transfer pipe 50 for vaporizing (gasifying) the radially injectable fuel Fu.

The combustion chamber 20 is formed in a substantially cylindrical shape with a metal having heat resistance and fire resistance, and is supported in a horizontally placed state by a support means (not shown).
At one end side Ya in the axial direction Y of the combustion chamber 20, an air outlet 21 that allows the flame FH to be generated when the fuel Fu burns is opened. On the other end side Yb in the axial direction Y, an air inlet 22 that allows the fuel Fu, the flame FH, the air Ar, and the combustible D to be injected is opened.

The fuel injection nozzle 30 is a one-hole type nozzle that injects fuel Fu radially, and is connected to the radial center P1 of the air inlet 22 in the combustion chamber 20, that is, the air inlet 22 in the air supply fan 40. The air outlet 43 is arranged at the center P1 in the radial direction.
An injection hole (not shown) for injecting fuel Fu from the injection port 22 toward the center and the inner periphery of the combustion chamber 20 is provided at the tip of the fuel injection nozzle 30.

One end of a fuel supply pipe 30a is connected to the fuel injection nozzle 30 via a pump and a valve (not shown). The other end of the fuel supply pipe 30a is connected to a fuel supply source 31 that supplies fuel Fu.
An ignition device 32 that ignites the fuel Fu injected from the fuel injection nozzle 30 (specifically, a heater, a piezoelectric element) is provided in an ignition allowable region where the fuel Fu injected from the fuel injection nozzle 30 is allowed to ignite. Ignition device).
The injection nozzle 30 and the ignition device 32 are supported by a frame holder 33 provided on the inner peripheral surface of the air outlet 43.

  The transfer pipe 50 is formed in a substantially cylindrical shape from a metal having heat resistance and fire resistance, and is parallel to the axial direction Y from the inlet 22 side toward the outlet 21 with respect to the inner peripheral surface of the combustion chamber 20. Are arranged in the circumferential direction X along the inner peripheral surface of the combustion chamber 20 (see FIGS. 1 and 2).

One end side Ya in the axial direction Y corresponding to the blowout port 21 in the transfer pipe 50 is provided with one end side opening 51 that allows the fuel Fu that is vaporized (gasified) toward the blowout port 21 to be blown out. Yes.
The other end side Yb in the axial direction Y corresponding to the blowing port 22 in the transfer pipe 50 is provided with the other end side opening 52 that allows the fuel Fu injected from the fuel injection nozzle 30 to be blown.
The openings 51 and 52 allow the air Ar and the combustible D to be blown out and blown in.

The total length in the axial direction Y from the one end side opening 51 to the other end side opening 52 in the transfer pipe 50 is set to be shorter than the total length in the axial direction Y from the outlet 21 to the inlet 22 in the combustion chamber 20. ing.
The one end side opening 51 in the transfer pipe 50 is provided at a position closer to the indoor side than the outlet 21 in the combustion chamber 20.

  The other end side opening 52 in the transfer pipe 50 is on the indoor side of the combustion chamber 20 with respect to the inlet 22, and the fuel Fu is injected radially from the fuel injection nozzle 30 toward the inner periphery of the combustion chamber 20. It is provided at a position closer to the blowing port 22 side than the line. The other end side opening 52 is provided at a predetermined interval with respect to the inner wall corresponding to the inlet 22 in the combustion chamber 20.

The peripheral surface of the transfer pipe 50 corresponding to the central portion in the radial direction of the combustion chamber 20 communicates with the inside of the transfer pipe 50 and has an arc shape that allows the injection of fuel Fu injected from the fuel injection nozzle 30. A hole 53 is provided (see FIG. 4A).
A plurality of holes 53 are arranged at predetermined intervals in the axial direction Y (longitudinal direction) with respect to the peripheral surface of the transfer pipe 50, and obliquely radiate from the fuel injection nozzle 30 with respect to the peripheral surface of the transfer pipe 50. It is provided at an angle that intersects the injection direction of the injected fuel Fu. Specifically, it is provided in the radial direction orthogonal to the axial direction Y of the transfer pipe 50.

If the shape and number of the holes 53 are changed, the amount of fuel Fu injected into the transfer pipe 50 can be adjusted accordingly.
Specifically, if the hole 53 is made smaller, the amount of fuel Fu blown from the hole 53 into the transfer pipe 50 is reduced, and the amount of vaporized fuel Fu blown from the one end side opening 51 is reduced. Therefore, the fire power of the flame FH blown out from the blow-out port 21 of the combustion chamber 20 can be weakened.

  On the contrary, if the hole 53 is enlarged, the amount of fuel Fu blown into the transfer pipe 50 from the hole 53 increases and the amount of vaporized fuel Fu blown from the one end side opening 51 increases. Therefore, the heating power of the flame FH blown out from the blowout port 21 of the combustion chamber 20 can be increased.

Between the outer periphery of the transfer pipe 50 and the inner periphery of the combustion chamber 20, the air Ar (including the fuel Fu and the combustible D) is transferred from the inlet 22 to the outlet 21 in the combustion chamber 20. Is formed in parallel with the axial direction Y.
The passage 23 arranges the cylindrical transfer pipes 50 so as to be adjacent to each other in the circumferential direction X along the inner peripheral surface of the combustion chamber 20, and the outer peripheral surfaces of the adjacent transfer pipes 50 to each other with respect to the circumferential direction X. By arranging them in contact with each other, they are formed between the outer periphery of the adjacent transfer pipe 50 and the inner periphery of the combustion chamber 20.
The total length of the passage 23 is set to a length corresponding to the total length in the axial direction Y from the one end side opening 51 to the other end side opening 52 in the transfer pipe 50.

  The air supply fan 40 includes a fan main body 41 formed of a metal having heat resistance and fire resistance, and a plurality of blades 42. The air outlet 43 of the fan main body 41 is connected to the inlet 22 of the combustion chamber 20. One end of an air supply path 60 (specifically, the main supply path 61) is connected to the air suction port 44 of the fan body 41.

The plurality of blades 42 are rotated in the supply direction Z by the driving force of the motor 45 directly connected to one side of the fan main body 41, and the air Ar and the combustible D are sucked into the air suction port 44 side. Generate negative pressure.
That is, the air Ar in which the combustible D is uniformly diffused or only the air Ar is sucked from the air suction port 44 of the fan main body 41 and supplied toward the air blowing port 43 (see FIGS. 1 and 3). .

The air supply path 60 is constituted by an air Ar in which the combustible D is uniformly diffused, or a main supply path 61 that is allowed to supply only the air Ar. One end side of the main supply path 61 is connected to the air suction port 44 of the fan body 41 in the air supply fan 40. The other end side of the main supply path 61 is connected to the combustible material storage unit 70 that stores the combustible material D (specifically, rice bran dried to a desired water content).
In addition, the above-mentioned to-be-combusted material storage part 70 is comprised by the to-be-combusted material storage part described in the patent 55099797.

  A portion of the combustion apparatus 10 that is directly or indirectly heated by the flame FH, specifically, the inner periphery of the combustion chamber 20, the inner periphery of the fan main body 41 in the air supply fan 40, and the outer surface of the blade 42. The hydrophilic inorganic polymer solution (specifically, product name = MSL “ It is covered with heat-resistant cement C to which “metal, silicon, liquid” is added.

A temperature sensor 24 for detecting the temperature of the flame FH blown from the blow-out port 21 is provided on the inner periphery of the combustion chamber 20 on the blow-out port 21 side.
The fuel injection nozzle 30 and the air supply fan 40 described above are controlled by a control device (not shown) based on a detection signal output from the temperature sensor 24. The control device incorporates a CPU, a ROM, and a RAM (not shown), and the CPU controls driving and stopping of the fuel injection nozzle 30 and the air supply fan 40 in accordance with a program stored in the ROM. .

  Based on the detection signal output from the temperature sensor 24, the CPU determines whether or not the temperature of the flame FH blown from the blowout port 21 of the combustion chamber 20 is within the temperature range stored in advance in the RAM. To do.

Based on the above determination result, the injection amount of the flame FH injected from the fuel injection nozzle 30 (specifically, the injection amount of the fuel Fu) and the supply amount of the air Ar supplied by the air supply fan 40 are variable. Adjust.
Thereby, the thermal power of the flame FH which blows off from the blower outlet 21 of the combustion chamber 20 is weakened or strengthened.

An operation of generating a desired flame FH by the combustion apparatus 10 of the first embodiment configured as described above will be described.
First, the fuel Fu in an unvaporized state (liquefied state) injected from the fuel injection nozzle 30 is injected from the blowing port 22 toward the center and the inner periphery of the combustion chamber 20 and the inner periphery of the combustion chamber 20. The fuel Fu that is injected obliquely radially toward the surface is sprayed to the peripheral surface provided with the holes 53 in the plurality of transfer pipes 50 arranged along the inner periphery of the combustion chamber 20, and a plurality of fuel Fu provided on the peripheral surface The holes 53 are blown into the transfer pipe 50 (see FIGS. 1 and 2).

  Air Ar required when the fuel Fu burns is supplied from the air inlet 22 into the combustion chamber 20 by the air supply fan 40, and the fuel Fu injected from the fuel injection nozzle 30 is ignited by the ignition device 32. Then, the flame FH combusted by the fuel Fu is blown out vigorously toward the outside of the combustion chamber 20 from the blowout port 21 (see FIG. 3).

  In order to heat the plurality of transfer pipes 50 arranged on the inner periphery of the combustion chamber 20 substantially uniformly by the heat of the flame FH in which the fuel Fu is burned, the fuel Fu in an unvaporized state blown into the transfer pipe 50 is used. It can be heated to the vaporizing temperature. Thereby, vaporization of the fuel Fu is promoted in the transfer pipe 50, and can be efficiently vaporized (gasified).

The fuel Fu in the vaporized state vaporized in the transfer pipe 50 is injected with the fuel Fu injected from the fuel injection nozzle 30 and the transfer force of the air Ar blown into the transfer pipe 50 from the other end side opening 52. Thus, the sheet is transferred from the other end side opening 52 toward the one end side opening 51.
When the fuel Fu in a vaporized state is blown out from the one end side opening 51 toward the blowout port 21, the fuel Fu is burned while being merged with the flame FH blown out from the blowout port 21, and is discharged from the blowout port 21 to the outside of the combustion chamber 20. The air is blown out vigorously (see FIGS. 1 and 2).

As a result, the fuel Fu injected from the fuel injection nozzle 30 can be reliably vaporized and efficiently burned completely, and a desired flame FH can be reliably generated.
In addition, combustion of the vaporized fuel Fu is more reliable than combustion of the fuel Fu in an unvaporized state (liquefied state), so that complete combustion can be surely prevented. And the combustion efficiency of the entire combustion apparatus 10 can be further increased.
Furthermore, since the vaporized fuel Fu is burned, the consumption of the fuel Fu can be kept low, and the combustion cost can be reduced.

Further, the air Ar blown toward the inner periphery of the combustion chamber 20 from the blow port 22 is exposed between the blow port 22 in the combustion chamber 20 and the other end side opening 52 in the transfer pipe 50. Sprayed against the inner periphery of the combustion chamber 20.
Air Ar blown to the inner periphery of the combustion chamber 20 is fed into the passage 23 from the blow port 22 and is transferred along the passage 23 from the blow port 22 side toward the blow port 21 side.
That is, since heat exchange is performed between the air Ar transferred in the passage 23 and the combustion chamber 20 and the transfer pipe 50, the inner periphery of the combustion chamber 20 and the outer periphery of the transfer pipe 50 are brought into contact with the air Ar. Air cooled.

By the above heat exchange, the transfer pipe 50 can be maintained at a temperature at which vaporization of the fuel Fu is promoted, and the fuel Fu can be prevented from being heated to a temperature higher than the vaporization temperature. The fuel Fu injected into the fuel can be vaporized more stably.
In addition, since the heat insulating action by the fuel Fu transferred in the transfer pipe 50 and the air Ar transferred in the passage 23 is obtained synergistically, the combustion chamber 20 and the transfer pipe 50 can be prevented from melting. , Heat resistance and fire resistance can be improved.

  Furthermore, the fuel Fu injected obliquely and radially from the fuel injection nozzle 30 is sprayed on the peripheral surface provided with the holes 53 in the plurality of transfer pipes 50 arranged along the inner periphery of the combustion chamber 20, and the flame FH. In the plurality of transfer pipes 50 heated by the heat of the gas, the gas is blown and vaporized from the plurality of holes 53 provided on the peripheral surface of the transfer pipe 50, so that almost all of them are injected obliquely radially from the fuel injection nozzle 30. The fuel Fu can be vaporized more efficiently and can be completely burned more reliably.

Furthermore, the inner periphery of the combustion chamber 20 heated directly or indirectly by the flame FH, the inner periphery of the fan body 41 and the outer surface of the blade 42 in the air supply fan 40, and the entire surface of the transfer pipe 50 (the inner periphery and the outer periphery). ) Since the inner circumference of the air supply path 60 is covered with a heat-resistant cement C to which a hydrophilic inorganic polymer solution is added, a high-temperature flame FH in which a metal having heat resistance and fire resistance is dissolved. Even if it generates, it can prevent that the combustion chamber 20, the air supply fan 40, the transfer pipe 50, and the air supply path 60 melt | dissolve.
As a result, the heat resistance and fire resistance of the combustion apparatus 10 are further improved, and a function sufficient to generate the desired flame FH can be stably obtained over a long period of time.

  In addition, the hydrophilic inorganic polymer solution contained in heat-resistant cement C contains abundant sodium (Na) and has the property of capturing chlorine generated during combustion and replacing it with sodium chloride. The effect of suppressing is acquired.

  Hereinafter, other examples of the above-described combustion apparatus 10 will be described. In this description, parts that are the same as or equivalent to those in the above configuration are denoted by the same reference numerals, and detailed description thereof is omitted.

(Example 2)
The combustion apparatus 10 of the second embodiment in which a cylindrical flame blowing cylinder 80 is fixed concentrically at the radial center in the combustion chamber 20 will be described.
FIG. 5 is a cross-sectional view of the combustion chamber 20 in the combustion apparatus 10 of the second embodiment divided in the axial direction Y, and FIG. 6 is an end view taken along the line NN of the combustion chamber 20 shown in FIG.

  More specifically, a cylindrical flame blowing cylinder 80 disposed at the center in the radial direction inside the combustion chamber 20 is supported by a support (not shown), and a concentric circle sharing one radial center P1 with the combustion chamber 20. It is fixed to.

  The flame blowing cylinder 80 is formed in a substantially cylindrical shape with a metal having heat resistance and fire resistance. The axial length Y of the flame blowing cylinder 80 is shorter than the overall length Y of the combustion chamber 20, and the outer diameter of the flame blowing cylinder 80 is smaller than the inner diameter of the combustion chamber 20.

  One end side Ya in the axial direction Y of the flame blowing cylinder 80 is closed by a closing portion 81 that prevents the flame FH from blowing out. On the other end side Yb of the flame blowing cylinder 80 in the axial direction Y, an opening 82 that allows the flame FH, the air Ar, and the combustible D to be blown is opened toward the blowing port 22 of the combustion chamber 20. ing.

  A number of flames are formed on the outer peripheral surface of the flame blowing cylinder 80 other than the blocking portion 81 so that the flame FH supplied from the fuel injection nozzle 30 is allowed to blow out in the radially outward direction of the flame blowing cylinder 80. A blowout hole 83 is provided.

  The flame blowing holes 83 are formed so as to penetrate in the radial direction of the flame blowing cylinder 80, and are spaced apart from each other in the circumferential direction X and the axial direction Y along the outer peripheral surface of the flame blowing cylinder 80 other than the closing portion 81. Arranged.

The operation of generating the desired flame FH by the combustion apparatus 10 of the second embodiment configured as described above will be described.
First, the mist-like fuel Fu injected from the fuel injection nozzle 30 is injected from the blowing port 22 toward the center and inner periphery of the combustion chamber 20 and obliquely radially toward the inner periphery of the combustion chamber 20. The mist-like fuel Fu injected to the inner surface of the combustion chamber 20 is sprayed to the peripheral surface provided with the hole portions 53 in the plurality of transfer pipes 50 and from the plurality of hole portions 53 provided on the peripheral surface. Each is blown into the transfer pipe 50 (see FIGS. 5 and 6).

  On the other hand, the flame FH obtained by burning the fuel Fu in an unvaporized state (liquefied state) injected from the fuel injection nozzle 30 is blown toward the radial center P1 of the flame blowing cylinder 80, and the flame blowing cylinder 80 The plurality of flame blowing holes 83 provided on the peripheral surface are blown in the radially outward direction.

  A part of the flame FH blown toward the radially central portion P1 of the flame blowing cylinder 80 is applied to the closed portion 81 of the flame blowing cylinder 80 and diverted radially outward, and the divided flame FH is blown out of the flame. Blowing is performed from the opening 82 toward the blowing port 22 along the inner peripheral surface of the tube 80.

  A flame FH blown from the opening 82 of the flame blowing cylinder 80 and a flame FH blown into the combustion chamber 20 from the blowing port 22 into the flame FH blown from the flame blowing hole 83 of the flame blowing cylinder 80 , The air is blown out vigorously from the air outlet 21 of the combustion chamber 20.

  A swirling flow of the flame FH is generated between the flame FH blown toward the radially central portion P1 of the flame blowing cylinder 80 and the flame FH blown from the opening 82 along the inner peripheral surface of the flame blowing cylinder 80. As a result, the center of the spiral portion in the flame FH not only becomes high temperature, but also becomes a fire type for completely burning the fuel Fu.

Further, when the fuel Fu vaporized in the plurality of transfer pipes 50 arranged on the inner periphery of the combustion chamber 20 is blown out from the one end side opening 51 of the transfer pipe 50 toward the blowout port 21, the combustion chamber 20. The fuel is burned while being joined to the flame FH blown from the blowout port 21, and blown out vigorously from the blowout port 21 of the combustion chamber 20.

As a result, the fuel Fu injected from the fuel injection nozzle 30 can be completely burned more reliably.
Even if unburned fuel Fu or a combusted material in place of fuel Fu remains in combustion chamber 20, complete combustion can be performed more reliably, and flame FH having a desired thermal power can be more reliably obtained.
For this reason, there can exist an effect | action and effect substantially equivalent to the above-mentioned Example 1 or more than equivalent.

In the correspondence between the configuration of the present invention and the embodiment,
The ignition means of the present invention corresponds to the ignition device 32 of the embodiment,
Similarly,
The air supply means corresponds to the air supply fan 40,
The transfer path corresponds to the transfer pipe 50,
The present invention is not limited to the configuration of the above-described embodiment, but can be applied based on the technical idea shown in the claims, and many embodiments can be obtained.

In the first embodiment described above, an example in which the arc-shaped hole portion 53 is provided in the transfer pipe 50 has been described. However, for example, the shape may be changed to a desired shape such as a round shape, an oval shape, a rectangular shape, or a square shape. It is not limited only to the shape.
For example, a large number of round holes 54 may be arranged at predetermined intervals in the axial direction Y with respect to the peripheral surface of the transfer pipe 50 (see FIG. 4B). Alternatively, the holes 54 may be arranged alternately (for example, a staggered pattern).
If the hole diameter and the number of the holes 54 are changed, the amount of fuel Fu injected into the transfer pipe 50 can be adjusted accordingly.

Further, as shown in FIG. 7, the hole 53 is formed in the injection direction of the fuel Fu that is injected obliquely radially from the fuel injection nozzle 30 toward the inner periphery of the combustion chamber 20 with respect to the peripheral surface of the transfer pipe 50. You may incline to the corresponding angle.
More specifically, when the hole 53 is provided at an angle that intersects the injection direction of the fuel Fu injected obliquely radially from the fuel injection nozzle 30 (see FIG. 1), the hole 53 is blown into the transfer pipe 50. Since the amount of fuel injected is limited, the amount of fuel Fu injected into the combustion chamber 20 is larger than the amount of fuel Fu injected into the transfer pipe 50.

  On the other hand, by inclining the hole 53 at an angle corresponding to the injection direction of the fuel Fu injected obliquely radially from the fuel injection nozzle 30, the fuel Fu injected obliquely radially from the fuel injection nozzle 30 is reduced. , It can be reliably and positively blown into the transfer pipe 50 from the hole 53. Thereby, the blowing amount of the fuel Fu blown into the transfer pipe 50 can be increased.

As a result, the fuel Fu injected obliquely radially from the fuel injection nozzle 30 can be reliably and efficiently vaporized in the transfer pipe 50.
Moreover, since the vaporized fuel Fu blown out from the one end side opening 51 of the transfer pipe 50 is burned while being joined to the flame FH blown out from the blowout port 21, the combustion efficiency of the entire combustion apparatus 10 can be further increased. it can.

  Furthermore, in the configuration of the second embodiment in which the above-described flame blowing cylinder 80 is disposed in the combustion chamber 20, when the efficiency of vaporizing the fuel Fu is worse than that in the first embodiment, the number of transfer pipes 50 is Change the configuration so that the vaporization efficiency is substantially the same as or equal to or greater than that of the first embodiment, for example, by reducing the number of tubes in the first embodiment or by arranging a plurality of tubes having a diameter smaller than that of the transfer tube 50. May be.

Ar ... Air C ... Heat-resistant cement D ... Combustible material FH ... Flame Fu ... Fuel 10 ... Combustion device 20 ... Combustion chamber 21 ... Blow-in port 22 ... Blow-in port 23 ... Passage 30 ... Fuel injection nozzle 32 ... Ignition device 40 ... Air Supply fan 50 ... Transfer pipe 51 ... Opening on one end side 52 ... Opening on the other end side 53,54 ... Hole 60 ... Air supply passage 70 ... Combustible material storage part 80 ... Flame blowing cylinder 83 ... Flame blowing hole

Claims (7)

A cylindrical combustion chamber having an outlet on one end and an inlet on the other end;
A fuel injection nozzle that injects fuel from the inlet toward the combustion chamber;
Ignition means for igniting the fuel injected from the fuel injection nozzle;
Air supply means for supplying air required when the fuel burns from the inlet toward the combustion chamber;
On the inner periphery of the combustion chamber,
A transfer path that allows the transfer of the fuel and the air from the blowing port to the blowing port is provided,
On one end side corresponding to the outlet in the transfer path, an opening on one end side where the fuel and the air are allowed to blow out is provided,
On the other end side corresponding to the blowing port in the transfer path, an opening on the other end side where the blowing of the fuel and the air is allowed is provided,
In the transfer path,
A combustion apparatus provided with a hole portion that communicates with the inside of the transfer path and is allowed to inject the fuel that is injected obliquely radially from the fuel injection nozzle toward the inner periphery of the combustion chamber. The other end side opening in the transfer path,
While providing a predetermined interval with respect to the inner wall corresponding to the blowing port in the combustion chamber,
2. The combustion apparatus according to claim 1, wherein the combustion apparatus is provided at a position closer to the inlet side than an injection line of the fuel that is injected obliquely radially from the fuel injection nozzle toward the inner periphery of the combustion chamber. Between the inner periphery of the combustion chamber and the outer periphery of the transfer path,
The combustion apparatus according to claim 1 or 2, further comprising a passage that allows the air to be transferred from the inlet side toward the outlet side. The transfer path,
Consists of a cylindrical transfer pipe provided with the one end side opening and the other end side opening,
The transfer pipe,
Arranging from the outlet side to the inlet side with respect to the inner periphery of the combustion chamber, and arranging a plurality in the circumferential direction along the inner periphery of the combustion chamber,
The hole,
The combustion apparatus according to any one of claims 1 to 3, wherein a plurality of the apparatus are provided at predetermined intervals in the axial direction with respect to a circumferential surface corresponding to a radial central portion of the combustion chamber in the transfer pipe. The hole,
The combustion apparatus according to any one of claims 1 to 4, wherein the combustion apparatus is inclined at an angle corresponding to an injection direction of the fuel that is injected obliquely radially from the fuel injection nozzle toward the inner periphery of the combustion chamber. In the center in the radial direction in the combustion chamber,
The cylinder is fixed concentrically with the combustion chamber, closes one end side corresponding to the blowout port of the combustion chamber, and has a cylindrical flame blowout cylinder opened at the other end side corresponding to the blowout port of the combustion chamber,
On the outer peripheral surface of the flame blowing cylinder,
The flame blown toward the radially central portion of the flame blowing tube is provided with a plurality of flame blowing holes that are allowed to blow out toward the radially outward direction of the flame blowing tube. Combustion device described in one. The combustion apparatus as described in any one of Claims 1-6 which covered the part heated with the said flame with the heat resistant cement formed by adding the hydrophilic inorganic polymer solution which has heat resistance.

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