JPS6119881B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vaporizing burner that can automatically shift liquid fuel from a raw combustion state to a green flame vaporization combustion state simply by blowing forced air without requiring a preheater or the like.

Firstly, the present applicant has developed a system in which hot air heated by a preheater is caused to flow in a zigzag pattern into a tube formed in a horizontal U-shape, so that the supplied fuel is combusted from the beginning as a mixed gas, and the vaporization process described above is carried out. We have developed a vaporization burner that can continue vaporization combustion over a long period of time under stable conditions by converting fuel, which has been fed by the heating action of a combustion flame, into a mixed gas by the blowing action of forced air at room temperature.

By the way, in the case of the vaporizing burner mentioned above, when starting combustion, it is assumed that a preheater is always used to generate hot air at the temperature of the vaporizing atmosphere, so it goes without saying that it takes a certain amount of time for combustion to start. In particular, it consumes a lot of electricity, which increases costs and causes breakdowns due to disconnection accidents, and there is a strong desire for improvement.

In view of the foregoing, the present invention has been developed by causing the supplied liquid fuel to be blown out by forced air flowing in the vaporization chamber and automatically refueled into the combustion dish disposed directly under the upper pipe for live combustion. By heating the upper pipe with a flame, the fuel to be sent is quickly vaporized and mixed gas is generated, and the mixed gas is transferred from the combustion part of the lower pipe located below the upper pipe to the upper pipe. The upper pipe is preheated by a flame, and the fuel is continuously vaporized.
Furthermore, without using any conventional preheating heaters, the fuel can be automatically transferred from a raw combustion state to a vaporized combustion state in a short period of time by simply using forced air jetting, and at the same time, it is possible to significantly save costs. The present invention aims to provide a vaporizing burner that prevents the occurrence of failures, and a preferred embodiment of the structure of the vaporizing burner according to the present invention will be described below as shown in the accompanying drawings.

1 is a single tube having a suitable diameter,
The tube body 1 has an air outlet 4 on one side, an upper tube 2 with a vaporization chamber 3 inside, and a stopper-shaped gas chamber 6 inside, and also has an upper tube 2 with a vaporizing combustion flame. A lower tube 5 having a combustion section 7 for raising flames is connected to the lower tube 5 via a bent tube 8, so that the whole is formed into a substantially horizontal U-shape. And an air outlet 4 provided on one side of the upper pipe 2
At this position, a fuel backflow stopper 9 is erected at an appropriate height, and the tip of an oil feed pipe 10 is opened at the starting end of the vaporizing chamber 3. Further, the tip of the lower pipe 5 is formed in a tapered shape, and a combustion section 7 is formed on the upper surface, and the combustion section 7 has a large number of gas ejection holes 11.
It is constructed by drilling holes in parallel. In the embodiment of the present invention, as shown in FIG. , a large number of gas ejection holes 11 are formed in the left and right concave portions of the combustion dish 12 . The combustion plate 12 may be provided separately from the lower tube 5. In this case, two lower pipes 5 are arranged with an interval between them, and the two lower pipes 5 are connected to one upper pipe 2, and the two lower pipes 5, 5 are connected to one upper pipe 2. A combustion plate 12 is disposed between the upper pipe 2 and the upper pipe 2.

A receiving wall 14 is installed at an appropriate position on the inner wall 13 of the bent pipe 8 to catch the fuel jetted down along the wall surface of the vaporization chamber 3 due to the forced air jet action, and the receiving wall 14 A flow hole 15 is bored in the inner wall 13 of the bent pipe 8 corresponding to the lowest position of the pipe 14, and the fuel received by the receiving wall 14 is allowed to flow down into the combustion dish 12 through the flow hole 15.

Note that the air outlet 4 is connected to the discharge side of a suitable air blower (not shown).

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

If normal temperature forced air is now blown from the air outlet 4 side, the normal temperature forced air will flow through the upper pipe 2, bent pipe 8 and lower pipe 5, and then forcefully flow into the upper pipe 2 through the numerous gas ejection holes 11. Squirt towards. Next, when liquid fuel is sent into the vaporization chamber 3 through the oil transfer pipe 10, the fuel is transferred along the wall surface of the vaporization chamber 3 by the jet action of forced air at room temperature, falls into the receiving wall 14, and then flows down. It is supplied into the combustion dish 12 through the hole 15. Therefore, if the fuel in the combustion dish 12 is ignited by an appropriate means, raw combustion will occur quickly due to the replenishment effect of room temperature forced air ejected from the numerous gas ejection holes 11, and the vaporization chamber 3 of the upper pipe 2 will be ignited. The temperature of the vaporizing atmosphere is raised to a temperature sufficient to vaporize the fuel in a short period of time. As a result, the fuel that is continuously supplied into the vaporization chamber 3 via the oil pipe 10 becomes a mixed gas during the transition due to the above-mentioned preheating action and forced air injection action, and becomes a mixed gas in the gas chamber of the lower pipe 5. After the gas is stored in the gas chamber 6, vaporizing combustion flames are blown up toward the upper tube 2 from the numerous gas ejection holes 11, thereby heating the inside of the vaporizing chamber 3.
Therefore, with the automatic transition to the vaporization combustion state described above, the fuel sent into the vaporization chamber 3 quickly and continuously turns into mixed gas, and the vaporization combustion state continues for a long period of time. Can continue.

In short, the present invention provides an upper pipe 2 with an air outlet 4 on one side and a vaporizing chamber 3 inside, and a gas chamber 6 inside, and combustion that causes vaporized combustion flames to rise against the upper pipe 2. The lower pipe 5 provided with the section 7 is connected to the lower pipe 5 through a bent pipe 8 to form a horizontal U-shape as a whole. A receiving wall 14 for receiving fuel supplied dropwise and blown by forced air flowing through the vaporization chamber 3 from the air outlet 4 side toward the gas chamber 6 and the received fuel. Since the flow holes 15 are provided to allow the water to flow down onto the combustion dish 12 disposed directly below the upper pipe 1, when starting combustion, the upper pipe 2, the bent pipe 8 and the lower pipe are A predetermined amount of fuel is automatically aligned along the bottom wall of the upper pipe 2 and the bent pipe 8 by the simple jetting action of the room temperature forced air flowing to the pipe 5 and the fuel dripping supply action into the vaporization chamber 3. After passing through the receiving wall 14 and the flow hole 15, it is reliably supplied to the combustion dish 12, and live combustion occurs smoothly on the combustion dish 12, making the vaporization chamber 3 of the upper pipe 2 shorter than the outside. It is preheated to the vaporizing atmosphere temperature within the time, the fuel moving inside is immediately evaporated and vaporized by the preheating action, and the generated vaporized gas is stirred and mixed with the blown forced air to form a complete mixed gas into the lower pipe 5. The fuel can be blown into the upper pipe 2 through the combustion section 7 for combustion. Therefore, according to the vaporizing burner of the present invention, the fed fuel can be automatically shifted from a raw combustion state to a green flame vaporizing combustion state without using any heat source such as a preheater, thereby stabilizing the vaporizing combustion. Since the combustion can be continued for a long period of time under the conditions of

[Brief explanation of the drawing]

The drawings show one embodiment of the vaporizing burner according to the present invention, in which FIG. 1 is a partially cutaway longitudinal sectional front view, FIG. 2 is a sectional view taken along the line A-A in FIG. Figure 3 is a sectional view taken along the line B-B in Figure 1;
FIG. 4 is an enlarged perspective view of the lower tube with a portion cut away. 1... tube body, 2... upper tube, 3... vaporization chamber, 4...
...Blower port, 5...Lower pipe, 6...Gas chamber, 7...Combustion section, 8...Bent pipe, 10...Oil pipe, 13...
Inner wall of bent pipe, 14...receiving wall, 15...flow hole.

Claims (1)

[Claims] 1. An upper pipe with an air outlet on one side and a vaporizing chamber inside, and a lower pipe with a gas chamber inside and a combustion part for emitting vaporized combustion flames above the upper pipe. The whole is connected by a pipe to form a horizontal U-shape, and the inner wall of the bent pipe is supplied with oil dropwise to the starting end of the vaporization chamber via a feed pipe, and inside the vaporization chamber from the air outlet side to the gas chamber. A receiving wall for receiving the sent fuel blown by the circulating forced wind, and a flow hole for allowing the received fuel to flow down onto the combustion dish located directly below the upper pipe. A vaporizing burner characterized by being provided with.