JPS6224686B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention raises the temperature of the vaporizing cylinder and the gas chamber body to the vaporized gas generation temperature by the direct heating action of the combustion flame without using any electric power such as a heater. The supplied fuel is quickly evaporated and vaporized while the vaporizing cylinder is heated to a uniform temperature by flowing hot air without being directly heated by combustion flames, and good vaporization and combustion continues over a long period of time. Regarding the vaporizing burner that can be used.

Conventionally, the fuel supplied to the vaporization cylinder through which combustion air flows is evaporated and vaporized by a heater, and the generated vaporized gas is stirred and mixed with the combustion air to form a mixed gas, which is vaporized and burned from the combustion part of the gas chamber body. This type of vaporizing burner is known as described in Japanese Utility Model Application Publication No. 16334/1983, which was filed prior to the present application, and in general, the generation of vaporized gas necessary to maintain the continuation of vaporized combustion occurs in the vaporizing cylinder itself. This was done by directly heating the gas to a high temperature using a vaporizing combustion flame.

By the way, when the vaporizing cylinder itself is directly heated to a high temperature by the vaporizing combustion flame during the transition to vaporizing combustion, if the heating temperature is not uniform, the vaporizing cylinder will generate a local red-hot phenomenon, and the tar of the supplied fuel will reach the red-hot position. Once generated, the above-mentioned tar gradually spreads throughout the carburetor cylinder, causing residual accumulation and significantly reducing the ability of the fuel to evaporate in this area.
Eventually, the evaporation effect of the fuel becomes impossible and the evaporative combustion stops, and the height of the evaporative burner cannot be made as low as possible, and maintenance costs cannot be saved.

In view of the above, the present invention uses the proximal end as an air outlet,
Inside a horizontal cylinder with a closed tip side, a horizontal vaporization cylinder with a diameter slightly smaller than that of the cylinder and with an open tip side is connected to the tip side of the vaporization cylinder between the inner surface of the cylinder and the outer surface of the vaporization cylinder. A horizontal gas chamber body is inserted so as to form a ventilation passage, and is connected to the proximal end side of the vaporization cylinder on the outside of the cylinder, and is equipped with a combustion section that heats the outer surface of the cylinder. At the same time, the tips of the fuel oil supply pipe and the spark plug are exposed inside the opening side of the tip of the vaporization cylinder, so that when starting vaporization combustion, the vaporization cylinder and the gas chamber body are directly exposed to the combustion flame without using any heaters. After heating, once the temperature of the vaporization cylinder and gas chamber body has risen to the vaporization gas generation temperature, the vaporization cylinder is heated continuously by the direct heating action of the vaporization combustion flame, eliminating the situation where the vaporization cylinder is directly heated to a non-uniform temperature by the vaporization combustion flame. The fuel oil supplied into the vaporization cylinder is heated to a uniform temperature by the circulation action of high-temperature hot air generated in a shape, and tar is generated by the heating action of the vaporization cylinder and the jetting action of high-temperature hot air. The purpose of the present invention is to provide a vaporizing burner that can continuously evaporate and vaporize without evaporation and maintain good vaporization combustion over a long period of time. A preferred embodiment will now be described.

In FIGS. 1 and 2, reference numeral 1 is a horizontal cylindrical body with an air outlet 2 on the base end and a closed distal end. Moreover, a horizontal vaporizing cylinder 3 with an opening 4 on the tip side
between the inner surface of the cylinder body 1 and the outer surface of the vaporizer tube 3.
The cylinder body 1 is inserted so that a ventilation passage 5 connecting to the tip opening 4 side is formed, and gas chambers 7 formed inside are connected to the base end side of the vaporizing cylinder 3 and the connecting member 8 on both left and right sides of the cylinder body 1. Horizontal gas chamber bodies 6, 6 are arranged, which are connected to each other through the cylinder body 1 and are equipped with a combustion section 9 which heats the outer surface of the cylinder body 1. The combustion section 9 is constructed by arranging a large number of gas ejection holes 10 in parallel over substantially the majority of the gas chamber bodies 6, 6 facing the cylinder 1 side, and is a gas chamber body in which no gas ejection holes 10 are formed. A flame plate 11 is attached to the outer periphery of the cylinders 6 and 6, with both ends thereof extending upward and toward the cylinder body 1, respectively.

Reference numeral 12 is a spray type fuel oil supply pipe whose tip is exposed inside the tip opening 4 of the carburetor cylinder 3, and 13 is an ignition plug. Note that the spray type fuel oil pipe 12 may be a drip type fuel oil pipe.

In the case shown in FIG. 3, a gas chamber body 6' connected to the proximal end of the vaporizing cylinder 3 via a connecting member 8' is formed to have a concave curved cross section. The cylinder body 1 into which the vaporization cylinder 3 is inserted is positioned at the center, and the gas chamber body 6' forms a gas chamber 7' connected to the vaporization cylinder 3 inside thereof. This is another example of a vaporizing burner in which a combustion section 9' consisting of a large number of gas ejection holes 10' is provided on the inner surface of the gas chamber body 6' facing the cylinder 1, and its effects are also shown in FIGS. 1 and 2. It is similar to the vaporizing burner described throughout the figures.

Next, the operation of the present invention will be explained.

Now, in FIGS. 1 and 2, combustion air is forcibly blown into the horizontal cylinder 1 from the air outlet 2 side, and at the same time, fuel is injected into the opening 4 on the tip side of the carburetor 3 through the fuel oil supply pipe. 12. Then, the fuel sprayed into the vaporization cylinder 3 is quickly ignited by the ignition start of the spark plug 13 and the replenishment of combustion air, and is live-combusted in the vaporization cylinder 3, and the raw combustion flame is transferred to the connecting member. After the gas is introduced into the gas chambers 7, 7 of the left and right gas chamber bodies 6, 6 through the gas chambers 8, 8, it is forcefully ejected toward the cylindrical body 1 from a large number of gas ejection holes 10. As a result, due to the circulation action of the raw combustion flame as described above, the combustion air flowing through the ventilation passage 5 as well as the vaporization tube 3 and the left and right gas chamber bodies 6, 6 are heated to a high temperature, and the vaporization tube 3. Raise the internal temperature to a vaporizing atmosphere temperature sufficient to quickly evaporate the fuel. Once the internal temperature of the vaporization cylinder 3 has been raised to the vaporization atmosphere temperature in this way, if the continuation of live combustion is temporarily stopped and only fuel is supplied again via the fuel oil feed pipe 12, the fuel will be transferred to the vaporization cylinder 3. While the combustion air is injected from the distal end to the proximal end, the generated vaporized gas is stirred and mixed with the combustion air, becoming a complete mixed gas and entering the gas chamber. It is press-fitted into the gas chambers 7, 7 of the bodies 6, 6, and a large number of gas ejection holes 10 are released under constant pressure.
. . . Since the fumes are generated more vigorously, they are ignited with a suitable spark plug (not shown) to start vaporization combustion, and the entire cylinder 1 is intensely heated from the outside by this vaporization combustion flame.

As a result, the vaporization cylinder 3 is not directly heated by the vaporization combustion flame, but the combustion air flowing through the ventilation passage 5 becomes high-temperature hot air and is continuously supplied into the vaporization cylinder 3. The entire unit is heated at a uniform temperature by circulating high-temperature combustion air. Therefore, since the vaporization cylinder 3 is maintained in a uniformly heated state, from now on, the vaporization cylinder 3 is heated through the fuel oil pipe 12.
The fuel sprayed on the tip side is efficiently evaporated and vaporized while being injected by high-temperature combustion air toward the base end of the inside of the vaporization cylinder 3 without leaving residual tar deposits. The vaporized gas is stirred and mixed with high-temperature combustion air to form a complete mixed gas, which is then pressurized into the gas chamber bodies 6, 6, and is vigorously jetted toward the cylinder body 1 from the numerous gas ejection holes 10 for vaporization and combustion. I do.

As mentioned above, since the vaporizing cylinder 3 is heated to a uniform vaporizing atmosphere temperature by high-temperature combustion air, tar is never generated and the mixed gas is stably and continuously generated, allowing for long-term use. It is possible to continue good vaporization combustion over a long period of time.

In short, since the present invention has the above-mentioned configuration, the temperature of the vaporizing cylinder and the gas chamber body is raised to the air gas generation temperature by the direct heating action of the combustion flame without using any heater or the like. In this method, the vaporizing cylinder for evaporating the fuel oil is not directly heated by the vaporizing combustion flame, but the whole is heated to a uniform temperature by the circulation action of high-temperature combustion air blown in the ventilation passage 5. , it is possible to completely eliminate the generation of residual fuel tar when the vaporizing cylinder 3 is heated to a non-uniform temperature by the vaporizing combustion flame, and to continue good vaporizing combustion for a long period of time. Since there is no residual tar accumulation inside the cylinder 3, the evaporation of the fuel is performed stably, and high-temperature combustion air can be easily obtained by heating the own evaporation combustion flame. , maintenance costs can be kept low,
Since the generated gas is stirred and mixed with high-temperature combustion air, the mixed gas becomes more complete and is combusted with fumes. At the same time, the overall vaporization burner can be kept as low as possible, making it suitable for various uses. play.

[Brief explanation of the drawing]

The drawing shows a vaporizing burner according to the present invention.
The figures are a partially cutaway longitudinal sectional plan view of the first embodiment, and a partially cutaway longitudinal plan view of the first embodiment.
The drawings are a side view taken along the line A--A in FIG. 1, and FIG. 3 is a longitudinal sectional side view of the second embodiment. 1... Cylindrical body, 2... Ventilation port, 3... Vaporizer tube, 4
... Opening on the tip side of the vaporization cylinder, 5 ... Ventilation passage, 6 ...
...Gas chamber body, 9...Combustion section, 12...Fuel feed pipe.

Claims (1)

[Claims] 1. Inside a horizontal cylinder whose proximal end serves as an air outlet and whose distal end is closed, a horizontal vaporizing cylinder with a slightly smaller diameter than the cylinder and open at its distal end is connected between the inner surface of the cylinder and the outer surface of the vaporizer cylinder. It is inserted so that a ventilation passage connecting to the distal end side of the vaporizing cylinder is formed between the cylinders, and a combustion part is provided on the outside of the cylinder body, which is connected to the proximal end side of the vaporizing cylinder and heats the outer surface of the cylinder body. 1. A vaporizing burner, characterized in that a horizontal gas chamber body is disposed therein, and the tips of a fuel oil feed pipe and a spark plug are respectively visible inside the tip opening side of the vaporizing cylinder.