JP2686563B2 - Hot air heater and burner used therefor - Google Patents

Description

TECHNICAL FIELD The present invention relates to a hot-air heater such as a closed oil stove and a Bunsen-type burner used for the same.

<Prior Art> FIG. 7 is a front longitudinal sectional view of a closed oil stove using a conventional Bunsen burner, and FIG. 8 is a side longitudinal sectional view thereof.
FIG. 9 is a plan view of a conventional Bunsen burner, and FIG. 10 is a vertical sectional view thereof.

In FIG. 7, 1 is a warm air heater main body, 2 is an oil tank, 3 is an oil tray, 4 is an oil feed pump, 5 is a vaporizer, 6 is a nozzle, 7 is a burner, and 8 is a combustion chamber.

Further, in FIG. 8, 9 is a combustion air inlet, 10 is an exhaust gas outlet, 11 is a blower fan, 12 is a warm air outlet,
13 is the flame.

Further, in FIG. 9, 14 is a burner body, 15 is a burner head, 16 is a flame hole, 17 is a packing, and 18 is a holding plate.

In the above configuration, the fuel sent by the oil feed pump 4 is
It burns in the burner 7, and its exhaust gas passes through the inside of the combustion chamber 8 and exits from the outlet 10.

On the other hand, the blower fan 11 causes the air to pass through the surface of the combustion chamber 8 so that heat is exchanged and becomes warm air, and the air blows out.
Blow out from 12. In this case, in order to effectively change the combustion heat into warm air (increase the thermal efficiency), it is necessary to increase the surface area of the combustion chamber, especially the part exposed to the wind.

<Problems to be Solved by the Invention> However, in the case of the Bunsen burner 7 as shown in FIGS. 9 and 10 in the above-mentioned conventional technique, since the flame holes 16 are entirely present on the burner head 15, FIG. Forming a continuous flame 13 such as. Therefore, the combustion chamber 8 ends up in a box shape as shown. For this reason, it is difficult to effectively apply air to the combustion chamber 8, and in order to increase the thermal efficiency, the combustion chamber 8 must be enlarged, and as a result, a closed oil stove that requires a large warm air heater body 1 is obtained. .

In view of the above, an object of the present invention is to provide a small and thin hot air heater such as a closed oil stove and a burner thereof.

<Means for Solving the Problems> In the means for solving the problems according to the present invention, as shown in FIGS. 1 and 2, an air passage 22 extending from the air suction port 21 to the warm air outlet 12 is formed in the warm air heater body 1. In the air passage 22, a combustion chamber 23 having a burner 7 in the lower part is arranged, and the burner 7 has a plurality of flame hole aggregates 34 that form independent flames,
The combustion chamber 23 has a plurality of combustion tubes 26 formed immediately above it corresponding to the flame hole assemblies 34 of the burner 7, and the combustion tubes 26 are spaced from each other in the air passage 22. It was arranged in advance.

The burner 7 used for this purpose is shown in Figs.
As shown in FIGS. 5 and 6, on the same plane of the burner head 32, a plurality of flame hole assemblies 34 composed of a plurality of flame holes 33 are arranged in parallel and do not overlap with the flame formed by the adjacent flame hole assemblies 34. Each flame hole assembly 34 is arranged at an interval so as to form an independent flame.

That is, in the problem solving means according to the present invention, the burner head is divided into an assembly of a plurality of flame holes to form independent flames, and the combustion chamber is made into a combustion cylinder adapted to each flame.

<Operation> In the above means for solving the problems, since the flame holes 33 formed in the burner head 32 are divided into a plurality of flame hole aggregates 34, a plurality of independent flames A as shown in FIG. 1 are formed. .

Corresponding to each flame A, a plurality of combustion tubes 26 are provided in the combustion chamber 23.
Are arranged, the air effectively passes through the surface of the combustion cylinder 26, and the thermal efficiency becomes high.

In this way, by using a plurality of combustion cylinders 26, the surface area of the combustion cylinders, especially the part exposed to the wind, increases, and sufficient thermal efficiency can be improved even in a small combustion chamber.

<Embodiment> Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[First Embodiment] FIG. 1 is a longitudinal sectional view showing a first embodiment of a closed oil stove using a Bunsen burner according to the present invention, FIG. 2 is a side sectional view thereof, and FIG. FIG. 4 is a plan view of the Bunsen burner according to FIG. The same functional components as those of the conventional components shown in FIGS. 7 to 10 are designated by the same reference numerals.

As shown in the figure, in the warm air heater according to the present invention, an air passage 22 extending from the air suction port 21 to the warm air outlet 12 is formed in the warm air heater main body 1, and a burner is provided at a lower portion in the air passage 22. A combustion chamber 23 having 7 is arranged.

As shown in FIGS. 1 and 2, the warm air heater main body 1 is formed in a box shape, and the warm air blowout port 12 is formed on the front surface and the air suction port 21 is formed on the rear surface thereof. And the air inlet
Blower Juan 11 is arranged in 21.

The combustion chamber 23 includes a lower burner storage chamber 25 in which the burner 7 is installed, a plurality of (three) combustion cylinders 26 connected to the burner storage chamber 25 and arranged above the burner storage chamber 25, and the combustion cylinder 26. A common cylinder 27 communicating the upper ends of the common cylinder 27 and a plurality of (three) branch cylinders 28 branched again at the end of the common cylinder 27, and exhaust gas from the branch cylinder 28 is exhausted at the rear of the main body of the warm air heater. It is composed of an exhaust pipe 29 leading to the gas outlet 10.

Of the combustion chamber 23, a combustion cylinder 26, a common cylinder 27 and a branch cylinder
28 is located in the air blow passage 22 and can exchange heat with the blown air.

As shown in FIGS. 3 and 4, the burner 7 is composed of a burner main body 31 that guides vaporized fuel ejected from the nozzle 6 of the carburetor 5 to the upper burner head 32, and a ceramic body disposed on the burner main body 31. A burner head 32, and the burner head
In the 32, a plurality (three) of flame hole assemblies 34 of a plurality of flame holes 33 are arranged in parallel at intervals, and each flame hole assembly 34 forms an independent flame.

The flame hole assembly 34 is located immediately below the combustion tube 26 so as to correspond to the combustion tube 26 of the combustion chamber 23.

In the burner head 32, flame transfer flame holes 35 are formed between the flame hole assemblies 34. Further, in FIGS. 3 and 4, 17 is a packing and 18 is a holding plate, and these have the same configurations as those shown in FIGS.

In the above structure, as shown in FIGS. 1 and 2, the fuel sent by the oil feed pump 4 is burned by the burner 7, and the exhaust gas passes through the combustion chamber 23 and goes out.

On the other hand, the blower fan 11 exchanges heat with the air passing through the surface of the combustion chamber to form warm air, which is blown out from the outlet 12.

In this case, since the flame holes 33 formed in the burner head 32 are divided into a plurality of flame hole assemblies 34, a plurality of independent flames A are formed as shown in FIG.

Corresponding to each flame A, a plurality of combustion tubes 26 are provided in the combustion chamber 23.
Are arranged, the air effectively passes through the surfaces of the combustion cylinder 26, the common cylinder 27, and the hot air outlet 12 to increase the thermal efficiency.

[Second Embodiment] FIG. 5 is a plan view of a Bunsen burner showing a second embodiment of the present invention, and FIG. 6 is a longitudinal sectional view thereof.

As shown in the figure, in the Bunsen burner 7 of the present embodiment, flame holes 33 are formed on the burner head 32 as a whole, and a plurality of (three) holes 37 are formed in a shielding plate 36 above the flame holes 33. Therefore, the flame holes 33 are separated into the aggregates 34.

In this case, since the flame holes 33 are evenly formed on the ceramic burner head 32, the distortion is small when the ceramic is molded.

Further, if the shield plate 36 is made of a metal such as stainless steel, when the presence or absence of the flame is detected by the resistance of the flame, it is reliable because the flame is in contact with the metal plate (the ceramic is an insulator and cannot detect the flame. ).

 Other components and functions are similar to those of the first embodiment.

It should be noted that the present invention is not limited to the above-described embodiment, and it goes without saying that many modifications and changes can be made to the above-described embodiment within the scope of the present invention.

<Effects of the Invention> As is clear from the above description, according to the present invention, since the combustion tubes are divided into a plurality of combustion tubes, the contact area with the air in the air passage becomes large, and sufficient thermal efficiency can be obtained even in a small combustion chamber. It is possible to provide a small hot air heater.

At this time, if a burner in which the flame hole assemblies are arranged at intervals so as not to overlap with the flames formed by the adjacent flame hole assemblies is used, each flame hole assembly forms an independent flame. If the thermal efficiency in the corresponding combustion cylinder can be improved, it has an excellent effect.

[Brief description of the drawings]

FIG. 1 is a vertical sectional view showing a first embodiment of a closed oil stove using a Bunsen burner according to the present invention, FIG. 2 is a side sectional view thereof, and FIG. 3 is a plan view of a Bunsen burner according to the present invention. FIG. 4 is a vertical sectional view thereof, FIG. 5 is a plan view of a Bunsen burner showing a second embodiment of the present invention, FIG. 6 is a vertical sectional view thereof, and FIG. 7 is a hermetic seal using a conventional Bunsen burner. FIG. 8 is a side elevational sectional view of a type oil stove, FIG. 8 is a side elevational sectional view, FIG. 9 is a plan view of a conventional Bunsen burner, and FIG. 10 is a longitudinal sectional view thereof. 1: Hot air heater body, 7: Burner, 12: Hot air outlet, 21:
Air suction port, 22: air passage, 23: combustion chamber, 26: combustion cylinder, 31: burner body, 32: burner head, 33: flame hole, 34: flame hole aggregate.

Claims (3)

(57) [Claims] 1. A hot air heater main body is provided with a blower passage extending from an air suction port to a warm air blower outlet, and a combustion chamber having a burner at a lower portion is arranged in the blower passage, and the burners are independent of each other. Having a plurality of flame hole aggregates forming a flame, the combustion chamber has a plurality of combustion cylinders formed immediately above it corresponding to each flame hole aggregate of the burner, each combustion cylinder is ,
A warm air heater, wherein the hot air heaters are arranged at intervals in the air passage. 2. A burner head has a plurality of flame hole assemblies, each of which is composed of a plurality of flame holes, arranged in parallel on the same plane. The flames formed by the adjacent flame hole assemblies are independent of each other without overlapping with each other. The burner used in the hot-air heater according to claim 1, wherein the respective flame hole assemblies are arranged at such intervals. 3. A burner according to claim 2, wherein flame transfer flame holes are formed between the respective flame hole aggregates.