JPS6341714A - Fluid fuel burner - Google Patents

Abstract

PURPOSE:To make it possible to improve the aptitude for mass-production of the burner and to reduce the manufacturing cost thereof by such an organization that an oil feed part is formed into a member divided from an oil feed pipe, a communicating pipe is integrally formed with a nozzle member, and the oil feed part and the nozzle member is cast-molded into the vaporizing chamber. CONSTITUTION:An oil feed part is formed into an oil feed member 21 divided from an oil feed pipe 3 and a communicating hole 24 and the nozzle member 23 are formed integrally, whereby the oil feed member 21 and the nozzle member 23 can be simultaneously cast-molded into an integral body and fixed to each other. By this precedure, while the nozzle member 23 and the like are secured into a predetermined dimension, a part to be fixed to the vaporizing chamber can be positively and simply constructed and reduction in the manufacturing cost due to the improvement in the aptitude for mass-production can be accomplished.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a liquid fuel combustion device used in, for example, a kerosene engine or a kerosene boiler, and particularly to a structure around the vaporization of the fuel.

[Prior Art] FIG. 2 shows a cross-sectional side view of a main part of a conventional liquid fuel combustion device.

FIG. 3 shows a cross-sectional bottom view of the section ■--■ in FIG. 2.

The liquid fuel combustion device shown in FIGS. 2 and 3 has an oil pan (
1), oil supply pump (2), oil supply pipe (3), vaporization chamber (
4), oil supply part (5), nozzle member (6), nozzle hole (7)
), electromagnetic solenoid (8), pipe (9), communication pipe (10), throat (11>, lid (12>), flame hole plate (13), outlet (14), heater (15), temperature sensor → no (16), needle (17), etc.

In the same figure, the oil pump (2) is mounted on the top of the oil pan (1).
) is attached. One end of a fuel pipe (3) is connected to the fuel pump (2). This oil supply pipe (
3) The other end is protruded into the vaporizer (4), and this protruding end serves as the oil supply part (5). The nozzle member (6> is
It has a nozzle hole 7) at one end thereof. Moreover, one end of a pipe (9) is fixed to the other end. pipe (9)
The other end is connected to an electromagnetic solenoid (8).

The electromagnetic solenoid (8) opens and closes the nozzle hole (7) by driving the needle (17).

The nozzle member (6>) is connected and communicated with the vaporization chamber (4>) through a communication pipe (10), and is supported by this communication pipe (10).

The vaporization chamber (4) side of the communication pipe (10>) projects into the vaporization chamber (4>).

The throat (11) is formed by a hollow portion provided approximately in the center of the vaporization chamber (4), and its upper and lower ends are open.

The lid (12) closes the upper part of the vaporization chamber (4) to seal it. This lid (12) is welded to the vaporization chamber (4).

A flame plate (13) is attached to the top of the lid (12) and covers the outlet (14) of the throat (11).

The heater (15) is for preheating the vaporization chamber (4) and is cast into the vaporization chamber (4).

The temperature sensor (16) is for controlling the temperature of the vaporization chamber (4) and is necessarily screwed into the vaporization chamber (4).

Next, the operation will be explained.

When the heater (15) is energized, the vaporization chamber (4) is heated. When the temperature inside the vaporization chamber (4) reaches 200 to 300°C, this is detected by the temperature sensor (16). Based on the detection of this temperature sensor (16), refueling is performed by the refueling pump (2), and the refueling pipe Fuel oil is supplied into the vaporization chamber (4) through (3).

The supplied fuel oil flows from the fuel supply section (5) to the bottom wall (4a) of the vaporization chamber.
) and is heated and vaporized.

At the same time, the needle (17) is driven by the electromagnetic solenoid (8), and the nozzle hole (7) is opened. As a result, vaporized fuel is ejected from the nozzle hole (7), and the kinetic energy of this ejection causes the air intake port (18) to
Air is drawn in from the throat (11) and mixed with the fuel gas. The air-fuel mixture thus produced is supplied to the flame hole plate (13).

As a result, when the air-fuel mixture flowing out from the outer periphery of the flame hole plate (13) is ignited, a combustion flame (19) is generated, and thereafter combustion is sustained by the continuously fed fuel.

[Problems to be Solved by the Invention] In the above-described conventional liquid fuel combustion device, there are parts fixed to the fuel supply pipe (3) and the communication pipe (1o) in the vaporization chamber (4), and the nozzle member (6). The part that fixes the throat (11) and the throat (11) while ensuring a predetermined dimension is constructed by welding, brazing, etc.

Therefore, a lot of time and effort is required to construct the fixed part, which has been a major problem in improving the suitability for mass production of this type of liquid fuel combustion device.

This invention was made in order to solve this problem, and makes it possible to reliably and easily construct a part for fixing a nozzle member having a nozzle hole while ensuring a predetermined dimension, thereby facilitating mass production. The object of the present invention is to obtain a liquid fuel combustion device that has improved suitability and can reduce manufacturing costs.

[Means for Solving the Problems] A liquid fuel combustion device according to the present invention includes a nozzle member having a vaporization chamber for vaporizing liquid fuel, a nozzle hole for ejecting the vaporized fuel together with air, and a nozzle member for ejecting the vaporized fuel from the nozzle hole. a throat that mixes the vaporized fuel and external air; a combustion section that burns the vaporized fuel mixed with the external air; a fuel supply pipe that sends fuel to the vaporization chamber; A refueling section that supplies fuel into the vaporization chamber;
It has a communication pipe that communicates the vaporization chamber and the nozzle hole, and the oil supply section is formed as a separate member from the oil supply pipe, and the communication pipe is connected to the nozzle member. The oil supply portion and the nozzle member are cast into the vaporization chamber.

[Function] By forming the oil supply part separately from the oil supply pipe and integrating the communication pipe with the nozzle member, it is now possible to cast the oil supply part and the nozzle member into the vaporization chamber at the same time. There is. This makes it possible to reliably and easily configure the part that fixes the nozzle member, etc. to the vaporization chamber while ensuring the specified dimensions, thereby reducing manufacturing costs by improving suitability for mass production. Become.

[Embodiment] Hereinafter, preferred embodiments of the present invention will be described based on the drawings.

In the figures, the same reference numerals indicate the same or equivalent parts.

FIG. 1 shows an embodiment of a main part of a liquid fuel combustion apparatus according to the present invention.

The liquid fuel combustion device shown in the figure is basically the same as the liquid fuel combustion device described above, and the only differences are as follows.

In other words, in the liquid fuel combustion apparatus shown in FIG.
21) is separated from the oil supply pipe (3) and formed independently. Separate only the oil supply part from this oil supply pipe (3) υ
j. The independent oil supply member (21) is connected to the nozzle member (
23> and is fixed in the vaporization chamber (4) by simultaneous casting.

Here, the upper part of the oil supply part U (21>) is the vaporization chamber (4).
It protrudes inward, and its lower part is joined to the oil supply pipe (3) by a cap nut (22). Further, the communication hole (24) between the nozzle hole (7) and the vaporization chamber (4>) is formed integrally with the nozzle member (23).The oil supply member (21) and the nozzle member (23) Each of them is fixed to the vaporization chamber (4) by being cast at the same time while leaving the air intake port (25) when the vaporization chamber (4> is cast).

Next, the operation will be explained.

In Fig. 1, when the heater (15) is energized, the vaporization chamber (4>) is heated.The temperature inside the vaporization chamber (4) is 2.
When it reaches 00-300'C, this is the temperature sensor (1
6). The detection by the temperature sensor (16) causes the fuel pump (2) to supply fuel, and fuel oil is supplied into the vaporization chamber (4>) through the fuel supply pipe (3>).

The supplied oil is dripped onto the bottom wall (4a) of the vaporization chamber and heated.
Be vaporized. This vaporized fuel passes through the communication hole (24) and is ejected from the nozzle hole (7). The kinetic energy of this ejection causes air to be sucked in from the air intake port (18), and this sucked air is entrained with the fuel gas in the throat (11) to form an air-fuel mixture. This air-fuel mixture is then supplied to the flame hole plate (13). When the air-fuel mixture flowing out from the outer periphery of the flame hole plate (13) is ignited, a combustion flame (19) is generated, and from then on, the combustion is sustained by the connected fuel.

In the liquid fuel combustion device shown in FIG. 1, the fuel supply part is divided from the fuel supply pipe (3) to form the fuel supply member (21), and the communication hole (24) and the nozzle member (23) are integrally fixed. By this, the oil supply member (21) is placed in the vaporization chamber (4).
) and the nozzle member (23) can be cast and fixed at the same time. This makes it possible to reliably and easily configure the part for fixing the nozzle member (23) etc. to the vaporization chamber while ensuring the predetermined dimensions.
Manufacturing costs can be reduced by improving suitability for mass production.

[Effects of the Invention] As explained above, the present invention includes forming the oil supply section by separating it from the oil supply pipe, integrating the communication pipe with the nozzle member, and casting the oil supply section and the nozzle member into the vaporization chamber. With the configuration in which the nozzle member is fixed in place, it is possible to securely and easily configure the part to be fixed to the vaporization chamber while ensuring the predetermined dimensions of the nozzle member, etc., and a reduction in manufacturing costs is achieved by improving suitability for mass production. This has the effect of making you feel more comfortable.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional side view showing an embodiment of a main part of a liquid fuel combustion device according to the present invention, FIG. 2 is a cross-sectional side view showing a portion of a conventional liquid fuel combustion device, and FIG. I of
[It is a cross-sectional bottom view in the II section. In the figure, (1) is the oil pan, (2) is the oil supply pump, (
3> is the oil supply pipe, (4) is the vaporizer, (4a> is the vaporizer bottom wall, (5> is the oil supply part, (6) is the nozzle member, (7) is the nozzle hole, (8) is the electromagnetic solenoid, (9> is a pipe,
(10> is the communication pipe, (11) is the throat, (12>)
Lid, (13) is flame hole plate, (14> is outlet, (15)
is a heater, (16) is a temperature sensor, (17> is a needle, (21) is an oil supply member, (22) is a cap nut, (23) is a
) is a nozzle member, (24) is a communication hole, and (25) is an air intake port. In addition, in the figures, the same reference numerals indicate the same or equivalent parts. Figure 1 2: Tightening bolt 7° 15,5-ter 4a:
ft, bottom wall of the chamber 22: bag, bottom 7: nozzle hole 23-nosle part wing 8: electric wire
Le/I 1” 24: Ren Tsukan Figure 2 Figure 3 Procedural Amendment (Voluntary)

Claims (1)

[Claims] (1) A vaporization chamber that vaporizes liquid fuel, a nozzle hole that ejects the vaporized fuel gas together with air, a throat that mixes the vaporized fuel ejected from the nozzle hole with external air, and a throat that mixes the vaporized fuel ejected from the nozzle hole with external air. a combustion section that combusts the vaporized fuel; a fuel supply pipe that sends fuel to the vaporization chamber; a fuel supply section that supplies the fuel sent through the fuel pipe into the vaporization chamber; the vaporization chamber and the nozzle hole; A liquid fuel combustion device comprising a communication hole connecting between the fuel supply pipe and the fuel supply pipe, and the communication hole is integrated with a nozzle member having the nozzle hole. A liquid fuel combustion device characterized in that the oil supply member and the nozzle member are cast into the vaporization chamber.