JPS61217612A - Liquid fuel combustion device - Google Patents

Abstract

PURPOSE:To prevent incomplete combustion and increase heat efficiency due to restaining of soot generation and to minimize a hot-water supplier or the like due to shortening of flames by a method wherein an evaporating cylinder having a tip end of large diameter is fitted to the tip end part of a combustion section and the flame keeping plate of a cone shape which is formed large diameter at a tip is arranged at the tip center portion of the evaporating cylinder while induction port of combustion gas is formed on the base part of the evaporating cylinder. CONSTITUTION:The primary air is introduced and mixed from the circumference of a nozzle 5 for liquid fuel ejected from the nozzle 5 forcibly with an electromagnetic pump, these mixtures are ignited with an ignition electrode rod 8 in a sub-combustion cylinder 7 forming holes 6 for the introduction of the secondary air and are burnt due to the introduction of the secondary air from the holes 6. The evaporating cylinder 2 having a large diameter at the tip is fitted to the tip end center part of the evaporating cylinder 2 through supporting fitting metals 11 and the flame keeping plate 3 of the cone shape which is formed with the large diameter at the tip is fitted to the tip end center portion of the evaporating cylinder 2 by stays 12 while the introduction ports 4 which introduces the combustion gas into the evaporating cylinder 2 may be formed on the base part of the evaporating cylinder 2.

Description

[Detailed description of the invention]

[Technical Field 1] The present invention relates to a liquid fuel combustion device that burns liquid fuel while jetting it out, and more specifically relates to a technique for increasing combustion efficiency through simple improvements. [Back! Fujutsu J Conventionally, in type burners that eject liquid fuel for combustion, premixing was not possible, and as a result, there were problems such as loud low-frequency noise and easy soot production. In addition, the flame is thick due to diffusive combustion (and the combustion gas temperature is around 800°C, resulting in poor thermal efficiency when incorporated into water heaters, etc.).Also, the combustion chamber is large, making water heaters smaller. It was difficult. [Object of the invention] The present invention was made in view of such problems,
The aim is to achieve complete combustion, increase thermal efficiency, suppress soot generation, and shorten the combustion flame, making the combustion chamber smaller and downsizing water heaters, etc. through simple improvements. The object of the present invention is to provide a liquid fuel combustion device that is easy to maintain and inspect. [Disclosure of the Invention] In the present invention, a vaporizing tube 2 having a large diameter at the tip is attached to the tip of a combustion section 1 of a liquid fuel combustion device that performs combustion while jetting liquid fuel. A liquid fuel characterized by having a conical flame stabilizing plate 3 with a large diameter at the tip thereof, and an inlet 4 for introducing combustion gas into the vaporizing cylinder 2 at the base of the vaporizing cylinder 2. This relates to a combustion device, and by doing so in this manner, the above objective has been achieved. In other words, although the flame of the combustion gas ejected from the vaporization tube 2 can be released to the surrounding area in cooperation with the vaporization tube 2 and the flame stabilizing plate 3, and the flame can be shortened, such combustion The ejector effect causes the gas to be introduced into the vaporizer cylinder 2 again through the inlet 4 and combusted again, thereby preventing incomplete combustion and achieving complete combustion, suppressing the generation of soot and improving thermal efficiency. This allows the flame to be made shorter, the combustion chamber to be made smaller, and the water heater or the like in which the device of the present invention is installed to be made smaller. Embodiments of the present invention will be described in detail below based on the drawings. Primary air is introduced from the nozzle 511 and mixed with the liquid fuel forcibly ejected from the nozzle 5 by a blower (not shown), and these are mixed into the pre-combustion tube 7 in which the holes 6 for introducing secondary air are formed. The combustion section 1 is configured so that the ignition electrode rod 8 ignites the liquid fuel, and secondary air is introduced through the hole 6 to perform combustion due to the ejector effect accompanying the delivery of the liquid fuel from the rear. Such a combustion section 1 is housed inside the supply 88!9,
This allows the water in the water channel 10 on the wall of the hot water supply ff1s to be heated. A vaporizing tube 2 whose tip has a large diameter is attached to the tip of the combustion section 1 via a support metal 11. A conical flame-holding plate 3 whose tip has a large diameter is attached to the center of the tip of the vaporizer cylinder 2 by a stay 12. An introduction port 4 for introducing combustion gas into the vaporization cylinder 2 is formed at the base of the vaporization cylinder 2. According to such a configuration, vaporization tf! The flame of the combustion gas ejected from i2 is emitted to a large extent locally by the cooperation of the vaporizer v12 and the flame-holding plate 3, the flame is shortened, and such combustion gas is vaporized again from the inlet 4 by the ejector effect. Tube 2
By introducing the fuel into the interior and combusting it again, complete combustion is achieved, soot generation is suppressed, thermal efficiency is increased, and the combustion chamber is made smaller, making water heaters and other equipment more compact.

【Effect of the invention】

In summary, the present invention attaches a vaporizing tube with a large diameter tip to the tip i part of the combustion section, and arranges a conical flame-holding plate with a large diameter tip in the center of the tip of the vaporizing tube. Since an inlet for introducing combustion gas into the vaporization cylinder is formed at the base of the cylinder, the flame of the combustion gas ejected from the vaporization cylinder is released to the surrounding area in cooperation with the vaporization cylinder and the flame-holding plate. I was able to
Although the flame can be shortened, the ejector effect causes these combustion gases to be introduced into the vaporizer cylinder again through the inlet and burned again, preventing incomplete combustion and achieving complete combustion. This has the advantage of suppressing the generation of soot, increasing thermal efficiency, shortening the flame, making the combustion chamber smaller, and downsizing the water heater, etc. in which the device of the present invention is installed.

[Brief explanation of drawings]

Fig. 1 is a sectional view of one embodiment of the present invention, and Fig. 2 is a sectional view of another embodiment of the same.
is a flame holding plate, and 4 is an inlet. Agent Patent Attorney Ishi 1) Ai (Voluntary author of 7 amendments) May 7, 1985

Claims (1)

[Claims] (1) A vaporizing tube with a large diameter tip is attached to the tip of the combustion section of a liquid fuel combustion device that performs combustion while spouting liquid fuel, and a conical tip with a large diameter tip is attached to the center of the tip of the vaporizing tube. 1. A liquid fuel combustion device characterized in that a flame holding plate is disposed, and an inlet for introducing combustion gas into the vaporization cylinder is formed at the base of the vaporization cylinder.