JPH0484007A - Burner and hot air space heater using same - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a warm air heater such as a closed kerosene stove, and a burner such as a Bunsen type burner used therein.

<Prior art> Fig. 7 is a front longitudinal cross-sectional view of an enclosed kerosene stove using a conventional Bunsen burner, Fig. 8 is a side longitudinal cross-sectional view thereof, Fig. 9 is a plan view of a conventional Bunsen burner, and Fig. 1O. is a longitudinal sectional view thereof.

In Fig. 7, l is the hot air heater body, 2 is the oil tank,
3 is an oil pan, 4 is an oil pump, 5 is a carburetor, 6 is a nozzle, 7 is a burner, and 8 is a combustion chamber.

Further, in FIG. 8, 9 is a combustion air inlet, 1O is an exhaust gas outlet, 11 is a blower fan, 12 is a hot air outlet, and 13 is a flame.

Further, in FIG. 9, 14 indicates a burner body, 15 indicates a burner head, 16 indicates a flame hole, 17 indicates a gasket, and 18 indicates a presser plate.

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

On the other hand, the air passes through the surface of the combustion chamber 8 by the blower fan 11, undergoes heat exchange, becomes warm air, and is blown out from the outlet 12. In this case, in order to effectively convert combustion heat into warm air (increase thermal efficiency), it is necessary to increase the surface area of the combustion chamber, especially the area that is exposed to the wind.

<Problems to be Solved by the Invention> However, in the above-mentioned prior art, in the case of the Bunsen burner 7 as shown in FIG.
Since there are flame holes 16 all over the top, a continuous flame 13 as shown in FIG. 7 is formed.

Therefore, the combustion chamber 8 becomes box-shaped as shown in the figure. For this reason, it is difficult to apply air effectively to the combustion chamber 8, and the only way to increase thermal efficiency is to make the combustion chamber 8 larger.As a result, a closed kerosene stove requires a large hot air heater body. .

SUMMARY OF THE INVENTION 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 kerosene stove and its burner.

<Means for Solving the Problems> The problem solving means according to claim 1 of the present invention is to provide a plurality of flame holes 33 in the burner head 32 of the burner body 31, as shown in FIGS. A plurality of flame hole assemblies 34 are arranged in parallel at intervals, and each flame hole assemblage 34 forms an independent flame.

The means for solving the problem according to claim 2 of the present invention is that, as shown in FIG. a combustion chamber 23 having a burner 7 according to claim I in its lower part;
The combustion chamber 23 has a plurality of combustion tubes 26 formed directly above each flame hole assembly 34 of the burner 7, and each combustion tube 26 has a plurality of combustion tubes 26 formed in the air passage 22. They are arranged at intervals from each other.

That is, in the problem-solving means according to the present invention, by dividing the burner head into a plurality of flame hole aggregates, independent flames are formed, and the combustion chamber is made into a combustion tube suitable for each flame.

Effect> In the above problem solving means, the flame hole 33 in the burner head 32 is divided into a plurality of flame hole aggregates 34, so that a plurality of independent flames A are formed as shown in FIG.

A plurality of combustion tubes 2 are provided in the combustion chamber 23 corresponding to each flame A.
6, air can effectively pass through the surface of the combustion tube 26, resulting in high thermal efficiency.

In this way, by providing a plurality of combustion tubes 26, the surface area of the combustion tube, especially the area exposed to the wind, increases, and even a small combustion chamber can achieve sufficient thermal efficiency.

<Example> Embodiments of the present invention will be described below based on the drawings.

[First Embodiment] Fig. 1 is a longitudinal sectional view showing a first embodiment of a closed kerosene stove using a Bunsen burner according to the present invention, Fig. 2 is a side sectional view thereof, and Fig. 3 is a longitudinal sectional view showing a first embodiment of an enclosed kerosene stove using a Bunsen burner according to the present invention. A plan view of such a Bunsen burner, and FIG. 4 is a longitudinal sectional view thereof. Note that functional parts that are the same 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 hot air heater according to the present invention, an air passage 22 extending from an air inlet 21 to a hot air outlet 12 is formed in the hot air heater main body l, and a burner is installed at the bottom of the air passage 22. A combustion chamber 23 with 7 is arranged.

As shown in FIG. 1.2, the hot air heater main body 1 is formed into a box shape, with the hot air outlet 12 formed on the front surface and the air suction port 21 formed on the rear surface. A blower fan ti is arranged at the air suction port 21.

The combustion chamber 23 includes a lower burner storage chamber 25 in which the burner 7 is housed, a plurality (three) of combustion tubes 26 that communicate with the burner storage chamber 25 and are disposed above it, and the combustion tubes 26. A common cylinder 27 that communicates the upper ends with each other, a plurality of (three) branch cylinders 28 that are branched again at the end of the common cylinder 27, and exhaust gas from the branch cylinders 28 is exhausted from the rear of the hot air heater main body. It is composed of an exhaust pipe 29 leading to the gas outlet lO.

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

As shown in Fig. 3.4, the burner 7 includes a burner body 31 that guides vaporized fuel ejected from the nozzle 6 of the carburetor 5 to an upper burner head 32, and a ceramic burner body 31 arranged on the upper part of the burner body 31. In the burner head 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 assemblage 34 has an independent flame. It is designed to form a

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

Incidentally, in the burner head 32, flame holes 35 for flame transfer are formed between each flame hole assembly 34. Also, in Figure 3.4, 17 is a packing, 18 is a presser plate, and these are the 9th
, 10 has the same configuration as that shown in FIG.

In the above configuration, as shown in FIG.
Go through it and go outside.

On the other hand, the air passes through the surface of the combustion chamber by the blower fan 11 and undergoes heat exchange to become warm air, which is then blown out from the outlet 12.

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

A plurality of combustion tubes 2 are provided in the combustion chamber 23 corresponding to each flame A.
6 is arranged, the air flows through the combustion tube 26 and the common tube 27.
The hot air also passes effectively through the surface of the hot air outlet 12, increasing 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, the Bunsen burner 7 of this embodiment has a flame hole 33 formed entirely on the burner head 32, and a plurality of (three) holes 37 formed in the shielding plate 36 above the flame hole 33.
Accordingly, the flame holes 33 are separated into aggregates 34.

The advantage in this case is that the flame holes 33 are uniformly formed on the ceramic burner head 32, so there is less distortion when molding the ceramic.

In addition, if the shielding plate 36 is made of a metal such as stainless steel, it is possible to detect the presence or absence of a flame based on flame resistance since the flame is in contact with the metal plate (ceramic is an insulator, so flame detection is possible). Can not).

Other structural functions are the same as those of the first embodiment.

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

<Effects of the Invention> As is clear from the above explanation, according to the present invention, since the combustion chamber is 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.

In this case, if the burner according to claim 1 is used, an independent flame is formed in each flame hole assembly, so there is an excellent effect that the thermal efficiency of the corresponding combustion tube can also be improved.

[Brief explanation of drawings]

Fig. 1 is a vertical sectional view showing a first embodiment of a closed kerosene 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 the Bunsen burner according to the present invention. , Fig. 4 is a vertical cross-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 longitudinal cross-sectional view thereof, and Fig. 7 is a sealed structure using a conventional Bunsen burner. FIG. 8 is a front vertical cross-sectional view of a type oil stove, FIG. 8 is a side vertical cross-sectional view, FIG. 9 is a plan view of a conventional Bunsen burner, and FIG. 10 is a vertical cross-sectional view thereof. ■=Hot air heater body, 7: Burner, 12: Hot air outlet, 21: Air inlet, 22: Air duct, 23: Combustion chamber,
26: combustion tube, 31: burner body, 32: burner head, 33: flame hole, 34: flame hole assembly. Figure Figure Figure Figure

Claims (1)

[Claims] 1. A plurality of flame hole assemblies of a plurality of flame holes are arranged in parallel at intervals in the burner head of the burner body, so that each flame hole assemblage forms an independent flame. A burner characterized by: 2. An air passage from the air inlet to the hot air outlet is formed in the main body of the hot air heater, and a combustion chamber having the burner according to claim 1 at the bottom thereof is disposed in the air passage, and the combustion chamber is , a plurality of combustion tubes are formed directly above each flame hole assembly of the burner, and each combustion tube is arranged at intervals in the air passage. Hot air heater.