JPS61168706A - Kerosene burner - Google Patents

Abstract

PURPOSE:To reduce the odor in flame quenching by providing a shutter which closes the upper section of the wick and an air passage which communicates from the upper section of a wick guide passage to an outer tube. CONSTITUTION:A shutter 21 is open during combustion, and the air flowing in from an air inlet 20a provided on the lower section of a flame quenching chamber 20 ascends along a wick support 14 and the wall of the flame quenching chamber 20 and flows on to the lower section of the gap between a combustion chamber 18 and an outer cylinder 19 via the vicinity to the shutter 21. At this moment the fuel attached to the outer face of a wick support 14 or the inside surface of the flame quenching chamber 20 is evaporated and carried away by the air a, and the fuel flows between the combustion chamber 18 and the outer cylinder 19 and is led into the combustion chamber 18 to be burned. When quenching the flame, the upper face of the flame quenching chamber 20 is closed by the shutter 21 to shut out later the fuel vaporized from a wick 13 from the combustion chamber 18 by the shutter 21 and the vaporized fuel is condensed and caught at the wall of the flame quenching chamber 20 or the lower face of the shutter 21.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a wick-type oil combustor, including a stove,
Can be used for fan heaters, dryers, etc.

2. Prior Art A conventional oil combustor of this type is, for example, the Japanese Patent Publication No. 57-28
As shown in Publication No. 050, it had a structure as shown in FIG. That is, the lamp wick 1 is held by the fire pan 2 with its tip protruding, and the combustion chamber 3 is placed on the fire pan 2.
An outer cylinder 4 is provided on the outside. A shielding plate 6 is slidably provided on one side of the fire pan 2 and has an upright part that becomes a part of the lower end wall of the combustion chamber 3 when open and comes into contact with the other internal walls of the combustion chamber 3 when closed, and shields the upper part of the lamp wick 1. There is. 6 is a rack attached to the lamp wick 1, 7 is a sulpinion that engages with the rack 6,
8 is a knob for rotating the pinion 7.

Problems to be Solved by the Invention In the above-mentioned conventional configuration, the shielding plate 6 largely protrudes toward the front of the fire pan 2, and even if it is in contact with the combustion chamber 3 during combustion, it releases a large amount of heat, resulting in a relatively low temperature state. . Therefore, a portion of the fuel vaporized from the lamp wick 1 will recondense near the low-temperature shielding plate 5.

This condensed fuel not only penetrates between the shielding plate 5 and the fire pan 2 and wets the lower surface of the shielding plate 5, but also flows out from the gap between the lower end of the combustion chamber 3 and the shielding plate 5 to the upper surface of the shielding plate 6. Sometimes. At this time, when the shielding plate 5 is slid and shielded to extinguish the fire, the tip of the lamp wick 1 becomes almost sealed and the fire is extinguished, but the fuel that has condensed on the upper surface of the shielding plate 5 re-vaporizes and the combustion chamber is still in a high temperature state. 3, and is partially oxidized while being heated and decomposed to become malodorous substances such as aldehydes, which generate a significant odor. In addition, condensation on the lower surface of the shield plate 5 is caused by a minute gap between the shield plate 5 and the combustion chamber 3 (this gap can easily occur due to thermal deformation of the heat shield plate 5 or the combustion chamber 3). The re-vaporized fuel gas and the late-vaporized fuel gas from the tip of the lamp wick 1, which is still in a high temperature state, flow into the combustion chamber 3, producing a foul odor as described above. In this way, even when the upper part of the lamp wick 1 is closed with the shielding plate 6,
This method has the disadvantage that it is not possible to completely suppress the generation of bad odors when extinguishing a fire.

In order to solve the above-mentioned conventional drawbacks, the present invention aims to prevent dew condensation around the shielding plate during combustion, suppress the overheating of the lamp wick, and prevent leakage of fuel gas after the shielding plate is closed. be.

Means for Solving the Problems As a means, the present invention surrounds the wick that moves up and down with a wick support, and is configured so that the upper end of the wick support is in close contact with the lower end of the combustion chamber during combustion, and when the lamp is extinguished, the wick is lowered. It has a shutter that closes the upper part of the wick, and an air flow that communicates between the upper combustion chamber and the outer cylinder outside of it, from above the guideway on which the wick support is guided and slid, through the vicinity of the wall of the wick support. It is equipped with a road.

Function: With the above structure, even if dew condensation occurs on the upper end of the wick, which acts as a fire pan during combustion, it will fall with the wick when extinguishing, and will be isolated from the combustion chamber by the shutter, and the outer cylinder will be removed from the upper part of the guideway. The airflow that communicates with the lamp also prevents fuel condensation near the shutter, suppressing the generation of odors due to revaporization of condensed fuel after extinguishing, and also prevents overheating of the wick and reducing the delay after extinguishing. This suppresses vaporization and prevents the generation of odors due to leakage from the shutter, and significantly reduces the generation of bad odors during fire extinguishing.

EXAMPLE An oil combustor according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, a flat lamp wick 13 is fitted into a guiding path 12 provided at the upper part of a tank 11, with its sides surrounded by a wick support 14, and a vinyl lamp 16 which is interlocked with a knob 16 is fitted.
The zero rotation causes the core support 14 to slide up and down as the rack 17 provided on the core support 14 moves up and down. The upper end of the wick support 14 is provided with a flange 14& that projects outward, and when the wick 13 is raised, the tip of the wick 13 comes into contact with the lower end of the flat combustion chamber 18 exposed, and has the function of a fire pan. Combustion chamber 18
An outer cylinder 19 is provided on the outside of the housing, and both are joined at the upper part. A fire extinguishing room 20 having an air vent 20a at the bottom is provided on the tank 11, and a shutter 21 is provided on the top surface of the fire extinguishing room 20.
An outer cylinder 19 is placed on top. Further, the lower end of the outer cylinder 19 is provided with an opening 19a.

In the above configuration, the operation will be explained next.

During combustion, as shown in FIG. 2A, the wick support 14 also rises as the lamp wick 13 rises, and the flange 14a moves up into the combustion chamber 1B.
The combustion chamber 18 is closed at the bottom and is in close contact with the lower end, using this as a fire pan.
is configured. At this time, the shutter 21 is in an open state,
Air (arrow a) flowing in from the air port 20a provided at the lower part of the fire extinguishing chamber 2o rises along the wick support 14 and the wall of the fire extinguishing chamber 2o, passes near the shutter 21, and enters the combustion chamber 18.
and the outer cylinder 19. At this time, the core support 1
4 Fuel adhering to the outside surface or the inside surface of the fire extinguishing chamber 2o is air a.
The fuel is removed by evaporation, flows between the combustion chamber 18 and the outer cylinder 19, is introduced into the combustion chamber 18, and is used for combustion. Moreover, since the side surface of the lamp wick 13 is covered by the wick support 14, there is no fuel vaporization from there, and the outer surface of the wick support 14, the inner surface of the fire extinguishing chamber 20, and the upper and lower surfaces of the shutter 21 are kept dry and cooled. dripping Therefore, when extinguishing a fire, as shown in FIG.
The fuel that vaporizes late from the tip of the shutter 21 is isolated from the combustion chamber 18 by the shutter 21, and is condensed and collected on the still cooled wall of the fire extinguishing chamber 20 or the lower surface of the shutter 21.
1. Almost no fuel gas leaks upward, and the generation of bad odors can be prevented. In addition, due to the cooling effect of the air flow a during combustion, thermal deformation of the fire extinguishing chamber 20, shutter 21, or pedestal 22, which are kept at a low temperature, is suppressed, and the blockage caused by the shutter 21 can be maintained almost completely. Even if condensation occurs on the flange body 14a, the flange body 1
It is avoided that the lamp 4a is lowered and blocked under the shutter 21 together with the lamp wick 13, causing odor.

Furthermore, due to the wick support 14 being cooled during combustion, the lower part of the lamp wick 13 is not overheated, and fuel vaporization due to the heat held by the lamp wick 13 itself after extinguishing is reduced, and the fire extinguishing chamber 2 is more completely heated.
In addition to being collected in the lamp wick 13, it also prevents deterioration (oxidation or polymerization) of the fuel due to fuel heating in the lamp wick 13.
It also has the secondary effect of suppressing the accumulation of tar-like substances at the tip.

Furthermore, after the flange 14a is lowered during extinguishing, the lower part of the combustion chamber 18 is largely opened, and in the case where an opening 19a is provided at the lower end of the outer cylinder 19, air a' A large amount of air flows in and rapidly cools the combustion chamber 18. At the same time, even if there is a leakage of fuel gas from below, the fuel gas is surrounded by air a' and rises, causing the inner wall of the high-temperature combustion chamber 18 to cool down. Without direct contact with fuel gas, it is possible to prevent transformation into malodorous substances due to thermal decomposition or partial oxidation, and in addition to the above-mentioned shielding effect, it can have a double malodor prevention function.

As shown in FIG.
If the upper air port 22a provided on the side wall of the pedestal 22 below the lower end is used, air a can be more quickly supplied to the combustion chamber 18.
The above effects are promoted.

Furthermore, even if the air vent 20a provided at the bottom of the fire extinguishing chamber 20 is opened during extinguishing, vaporized fuel gas will hardly leak from the lamp wick 13, and will be condensed and collected on the inner wall of the fire extinguishing chamber 20. As shown in FIG.
The inside of the air outlet 20a is completely closed, and the fire is extinguished instantly and reliably, and at the same time, there is no leakage of fuel gas from the air port 20a.

Effects of the Invention As described above, the oil combustor of the present invention has a wick support surrounding the wick that moves up and down, and is constructed so that the upper end of the wick support is in close contact with the lower end of the combustion chamber during combustion, and lowers when extinguishing. The lamp is equipped with a shutter that closes the upper part of the wick, and an air flow path is provided that communicates between the upper combustion chamber and the outer cylinder from the upper part of the window guide path through which the wick support is guided and slid, passing around the wick support. This removes fuel adhering to the area around the shutter during combustion, suppressing fuel vaporization that causes foul odors when extinguishing a fire, and increases the efficiency of fuel gas condensation and collection during extinguishing due to the cooling effect of the airflow. It prevents deformation, improves occlusiveness, and significantly reduces the occurrence of bad odors after extinguishing a fire. It also has the secondary effect of preventing the wick from overheating, suppressing the formation of tar-like substances, and extending the life of the wick.

[Brief explanation of drawings]

FIG. 1 is a longitudinal cross-sectional view of an oil combustor according to one embodiment of the present invention, FIG. 2 is an explanatory diagram of the operation of its main parts, and FIGS. 3 and 4 are longitudinal cross-sections of main parts of other embodiments of the present invention. 6 are longitudinal sectional views of essential parts of a conventional oil combustor. 12...Guidance path, 13...Lamp wick, 1
4... Core supporter, 14a... Flange body, 1
8... Combustion chamber, 19... Outer cylinder, 19a
...Opening, 2o...Fire room, 20a
...Air hole, 21...Shutter, 22
...... Frame, 22a... Upper air vent. l? , Shinzai FG Road I3...Ting Core No. 2 Figure U Figure 5

Claims (4)

[Claims] (1) A combustion chamber, an outer cylinder that houses the combustion chamber, a wick that moves up and down so as to expose its tip to the lower part of the combustion chamber when raised, a guide dew for the wick, and at least the a wick support that surrounds the sliding part with the guide path and is attached so as to come into close contact with the lower end of the combustion chamber when the wick is raised; a shutter that closes the upper part of the wick when the wick is lowered; An oil combustor comprising an air passage communicating between the combustion chamber and the outer cylinder through a side surface of the wick support. (2) The oil combustor according to claim 1, further comprising an air port that is always open at a lower portion between the combustion chamber and the outer cylinder. (3) The oil combustor according to claim 2, wherein the air port is provided below the lower end of the combustion chamber. (4) The oil combustor according to claim 2 or 3, wherein the inlet of the air flow path is configured to be closed by the wick support when the wick is lowered.