JPS61159012A - Combustor - Google Patents

Abstract

PURPOSE:To reduce an offensive odor at the usual time of fire-cut by installing at least one auxiliary wick part in the main wick in such a way that the height of the auxiliary wick part is higher than the other parts of the main wick at the upper part of the wick. CONSTITUTION:The wick 1 is composed of suck-up wick, main wick 1a and auxiliary wick and its lower end is submerged in the fuel at a tank bottom and during combustion, the upper end is exposed in the combustion chamber 4 and the wick supplies fuel by capillary action. At the time of fire-cut the wick 1 is descended by up-down mechanism and it is put back into the gap between outer cylinder 6 and wick guide cylinder 7 and as a result, its vaporizing area is reduced largely. therefore, combustion at a combustion chamber 4 stops and the flame 11 is formed at the fire dich 10 and the flame becomes smaller and is put out in response to reduction of temp. at the fire dish. At that time, even when temp. of the main wick is reduced and mixed gas at the upper end of the wick is diluted, combustion is continued by the flame formed at the auxiliary wick 1b. At the time of fire-cut by reduction of temp. of auxiliary wick and the volume of vaporized gas, temp. of the main wick is far more reduced than that of the auxiliary wick. Therefore, generated volume of vaporized gas is small and generated odor is largely reduced after fire-cut.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a wick vaporization type liquid combustor that is widely used in oil stoves, oil stoves, and the like.

Conventional technology The conventional method for extinguishing a combustor using a wick is to lower the wick between the guide station and the wick outer cylinder to cut off the supply of oxygen, lower the temperature of the wick, and stop the vaporization of fuel from the wick. A method is used. In addition, in the above method, a method is used in which a difference is made in the descending dimension of the wick depending on whether the fire is normally extinguished artificially or when extinguishing an emergency fire in the event of an earthquake or fall, and the descending dimension is shortened during normal extinguishing and lengthened during emergency extinguishing. There is.

This is because in the event of an emergency fire extinguishment, it is mandatory to extinguish the fire within 10 seconds, and by increasing the descending dimension, the oxygen supply is reliably cut off and the extinguishing time is shortened. However, in this case, the vaporization of fuel from the wick continues for a while after the wick is extinguished due to the heat capacity of the wick and the residual heat of the metal parts in contact with the wick, which causes odor after the wick is extinguished. However, methods are widely used to suppress the generation of odors by supplying oxygen little by little and burning the trace amount of vaporized gas from the wick.

Problems to be Solved by the Invention According to such conventional devices, when the wick is normally extinguished, the descending dimension of the wick is shortened, so when the amount of vaporized gas after the wick descends is relatively large, the vaporized gas is stably released. It burns and produces little odor, but as the temperature of the wick drops and the amount of vaporized gas decreases, combustion becomes unstable and is extinguished by slight disturbances (wind, vibrations), and unburned oxidized gas is released outside the appliance, causing an odor. There was a problem that occurred.

Means for Solving the Problems In order to solve these problems, the present invention has a structure in which an auxiliary wick is provided in a part of the lamp wick, which is positioned higher than the tip of the other lamp wick.

When the amount of vaporized gas is relatively large, the combustion after the wick descends occurs all around the periphery, but when the amount of electrified gas decreases, the flame burns while rotating around the fire pan in the circumferential direction.

This is because the mixed gas in the fire pan is diluted due to the small amount of vaporized gas, making it difficult to self-combust, so the combustion continues by receiving heat from the nearby flame.The conditions for this are the circumference of the wick. It is almost uniform in direction. Therefore, the ignition source moves in search of an unburned part with a relatively large amount of vaporized gas.

The structure of the present invention is to create a case where a relatively large amount of electrified gas is present in a part of the circumferential direction of the wick by providing an auxiliary wick positioned higher than the tip of the other part of the lamp wick, and to stabilize that part. This device forms a flame, and uses that flame as an ignition source to burn small amounts of vaporized gas generated from other parts.When the temperature of the auxiliary wick drops and the fire is extinguished, the temperature of other parts drops even further. Because of this, less electrified gas is generated after the fire is completely extinguished, which has the effect of greatly reducing odor.

EXAMPLE Below, one implementation of the present invention will be described based on the drawings. In Figure 1, 1 is the lamp wick, the suction wick and the habitat 1a.

It consists of an auxiliary wick 1b, the lower end of which is soaked in the fuel in the lower tank 8, and the upper end exposed in the combustion chamber 4 during combustion, supplying fuel by capillary action. A two-piece inner flame tube and a three-piece outer flame tube are held almost concentrically, and a combustion chamber 4 is formed by the gap between them. 5 is a red-hot cylinder connected to the upper part of the outer flame tube 3;
6 is a wick outer cylinder, 7 is a wick guide cylinder, and the lamp wick 1 is moved up and down through the gap therebetween by a wick up and down mechanism 9.

In the above configuration, when the tip of the housing 1a is ignited, the heat ignites the fuel contained in the housing 1a, which mixes with the air supplied from the small holes provided in the inner flame gap 2 and the outer flame tube 3, and It rises in the combustion chamber 4 while partially burning, and reaches a red hot temperature of 5″.
While heating and generating radiant heat, the exhaust gas after combustion is released outside the appliance as convective heat.

In FIG. 2, when extinguishing a fire, the wick 1 is lowered by the wick up/down mechanism 9 and stored in the gap between the lamp outer tube 6 and the wick guide tube 7, thereby greatly reducing the vaporizing area and causing combustion in the combustion chamber 4. stops and forms a flame 11 in the fire pan 10. This flame 11 is formed by the combustion of vaporized gas from the habitat 1a due to the heat capacity of the habitat 1a and the residual heat of the core outer tube 6 and core guide tube 7 that are in contact with them.
As the temperature of the rotating part decreases, the flame 11 becomes smaller and disappears. At this time, if there is no auxiliary wick at the tip of the main wick as in the past, when the amount of vaporized gas decreases due to a drop in temperature, the mixed gas in the fire pan becomes diluted, making it difficult to burn with only its own heat, and the nearby It burns while receiving heat from the flame, but
Since the nearby flame is also unstable, the combustion is extremely unstable, and the fire is extinguished by a slight wind or vibration, and the electrified gas passes through the combustion chamber with residual heat and is thermally decomposed into aldehydes with a pungent odor. This caused an odor.

Particularly in the structure of the present invention, when the auxiliary wick 1b is provided in a part of the habitat 1a, the tip of the auxiliary wick 1b is located above the other part of the habitat 1a and is close to the high-temperature combustion chamber 4. The temperature drop is delayed, and a small amount of air flow generates vaporized gas from the side of the auxiliary wick, so the wick lowers and generates more electrifying gas than other main wicks, forming a stable combustion flame.

Therefore, even if the temperature of the other main core parts decreases and the mixed gas above the interstitial part becomes diluted, combustion is continued by the flame formed in the auxiliary wick part 1b. When the temperature of the auxiliary wick 1b decreases, the amount of vaporized gas decreases, and the fire is extinguished, the temperature of the other main cores has fallen below that, so the amount of electrified gas generated after the fire is extinguished is small, and no odor is generated. It can be reduced to a large extent.

As described in detail, the present invention stably reduces the odor during normal extinguishing by providing an auxiliary wick whose tip is positioned higher than the other main wicks in at least one location above the wick. The aim is to

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a combustor according to an embodiment of the present invention, FIG. 2 is a sectional view of essential parts of the combustor when extinguished, and FIG. 3 is a perspective view of the wick. 1...Light wick, 1a...Inhabitation, 1b...
...Auxiliary wick, 2...Inner flame cylinder, 3...
- External inflammation. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure/--one lantern wick l mountain--inhabitation/b--one lantern wick・

Claims (1)

[Claims] a combustion chamber consisting of an inner flame tube and an outer flame tube having a large number of small holes;
A combustor comprising a lamp wick that is movable up and down to lower and extinguish the fire, and an auxiliary wick whose tip is positioned higher than the other main wicks at at least one part of the main wick of the lamp.