JPS6096836A - Kerosene combustion device - Google Patents

Abstract

PURPOSE:To reduce an upstanding flame and the development of soot at the time of extinguishing, by providing a pressure equalizing valve communicating an oil tank with an atmosphere and by providing a small chamber communicating a wick guiding cylinder. CONSTITUTION:At the time of extinguishing, most unburnt gas present in a space 13 above and below a wick flows into a small chamber 15 through a slit opening 16 to mix with an air flowed from an extinguishing port 14 defined through the outer peripheral wall of the chamber 15. An explosive combustion takes place inside the chamber 15 by an ignition from a small tray. A resultant blast is blown to inside the space 13 above and below the wick for thereby extinguishing the fire with no smell accompanied. At this moment, the inner pressure of chamber 4 of oil tank 1 is momentarily increased. However, a pressure equalizing valve 20 is opened and therefore the chamber 4 does not raise its pressure. In consequence, the unburnt gas does not pass through a clearance defined between wick guiding cylinders 8, 9 and a wick 7, whereby substantially reducing the amount of unburnt gas present in the space 13 above and below the wick. Thus, it becomes possible to reduce an offensive smell which would otherwise accompany with the extinguishing action.

Description

DETAILED DESCRIPTION OF THE INVENTION The industrial field of application relates to oil burners such as stoves and the like.

Example structure and its problems Conventional stone i+I+combustion appliance-: As shown in FIG.
and a core outer cylinder 53 with a gap provided in the outer circumferential direction;
There are 55 vertically movable lamp wicks in one gap, 11'°''j. According to this configuration, extinguishing operation,
In other words, when the core 55 is lowered, the internal pressure P of the oil tank 51 decreases.
is 1. J! At this time, the steam gas in the oil tank 51 passes through the wick 55, the wick outer cylinder 53, and the gap 8 between the wick outer cylinder 54,
Combustion occurs between the inner flame tube 56 and outer flame tube 57 of the chimney, but at this time, the balance of the combustion air-fuel ratio collapses, resulting in a lack of air and a large amount of air. It generates soot and flames, which is unfavorable for safety and health. Furthermore, even in the event of an emergency fire extinguishment, there is a problem that the extinguishing time becomes longer due to the increased amount of fuel.

Purpose of the Invention The present invention has been made in view of the above-mentioned problems, and aims to reduce the occurrence of flames and soot during fire extinguishing, and to ensure extinguishment in emergency fire extinguishing situations. .

Structure of the Invention In order to achieve the 11th object, the present invention provides a pressure equalizing valve that communicates the oil tank with the outside air in order to reduce the pressure inside the oil tank when lowering the wick (when extinguishing a fire), and also includes a pressure equalizing valve in the wick guide cylinder. By providing a communicating small chamber and providing a small hole in the small chamber, the conventional problems were solved and the intended purpose was achieved.

DESCRIPTION OF EMBODIMENTS One embodiment will be described below with reference to the drawings. 1.2
．． In Figure 3, 1 is a rectangular oil tank, and the inside of the oil tank 1 is partitioned into two groups 3.4 by a cylindrical body 2.
The chambers 3 and 4 are connected to each other through the opening 5 of the cylinder body 2.The lower end of the chamber 4 is submerged in the oil 6, and a two-part vaporizing section is connected with the knob (not shown). -1-, l: A cylindrical lamp wick 7 is provided which is moved by the lamp wick 11.
A cylindrical wick guide 1r718.9 is provided on the inside and outside of the lamp, and serves as a guide for the lamp wick 7. The wick 7 is provided so as to face between the outer flame tubes 11 and 12 of the combustion section 10, and the inner and outer flame tubes 11 and 12 are provided with a plurality of air holes. Of the foot core guide tubes 8.9, the outer core guide tube 9 is composed of three cylindrical members 'ja, 9b, and 9c as a bottom layer, and has a fire extinguishing hole 14 on the outer periphery of the core vertical movement space 13 that communicates with the outside air. A ring-shaped small chamber 15 is formed. Also, 9a of this cylindrical member 9a19b19c
A ring 116 is formed around the entire circumference of the lamp, which faces the small chamber 15 with a gap 9a in between, and communicates the small chamber 15 with the lower moving space 13 (this may be discontinuous).
are doing. Reference numeral 17 denotes a cylindrical valve receiver, which has an upwardly inclined tip and is fixed to the cylindrical member 9a of the metal outer core guide cylinder 9, and is connected to the oil tank 10 chamber 4 through the communication holes 18 and 19 of the cylindrical member 9b19c. is connected to. The other end is the valve receiving part and the pressure equalizing valve 20
At the same time, under normal conditions, the pressure equalizing valve 20 is closed by its own weight and is cut off from the outside air. Reference numeral 21 denotes a core outer cylinder ring, which is housed below the inner circumference of the cylindrical portion 4d'9c.

Based on the above configuration, the lamp wick 7 is lowered down by 8.9 degrees of the wick guide tube manually or by using a vibration extinguishing device or the like to extinguish the fire. (
(Fig. 2 shows the lamp during its descent, and Fig. 3 shows the downward drop.) At this time, most of the unburned gas present in the wick moving space 13 flows into the small chamber 15 through the slit opening 16. Mixed with air from a fire extinguishing hole 14 provided in the outer peripheral wall of the lamp, the flame is ignited from a small plate and combusts explosively in a small chamber 15, and the resulting dry air is blown into the space 13 above and below the wick to extinguish the lamp by suffocation. . Also, at this time, the internal pressure in the chamber 4 of the oil tank 1 rises instantaneously, but since the pressure equalization valve 20 is opened, the pressure in the chamber 4 does not rise much, and the wick guide tube 8.9 and the lamp wick 7 The amount of unburned gas existing in the 1' 1lflJ space 13 above the wick is greatly reduced without the unburned gas passing through, the generation of soot and the standing flame during extinguishing are reduced, and the amount of unburned gas is reduced. This reduces the amount of fire extinguishing odor. Further, the fire extinguishing valve 20 has a chamber 40; when the power returns to its original state, it is shut off from the atmosphere by its own weight, so that unburned gas from the oil tank 1 is not released and there is no risk of backfire.

According to the above-mentioned e-Futsu-1, it is possible to extinguish a fire without generating soot or flames during manual fire extinguishing or emergency fire extinguishing, and it also reduces fire extinguishing odors, etc. 1, which reduces the safety and reliability of

[Brief explanation of drawings]

Figures 1 to 3 are diagrams of an oil combustor according to an embodiment of the present invention (Figure 1 is during normal combustion, Figure 2 is when the core is lowered, and Figure 3 is when the core is lowered). 1 and 4 are cross-sectional views showing a conventional example. 1... Oil tank, 7... Light wick, 8.9
... Core guide cylinder, 13 ... Core vertical movement space, 14 ... Fire extinguishing hole, 15 ... Small chamber, 1
6... Slit opening, 17... Valve receiver,
20... Pressure equalization valve, 21... Core outer cylinder ring. Name of agent: Patent attorney Toshio Nakao and 1 other person 1st
Figure Io Figure 2 Figure 0 Figure 3 1θ

Claims (1)

[Claims] A wick guide tube that freely guides the wick is provided on the oil tank, and a small chamber is provided that communicates with the wick guide tube and has multiple fire extinguishing holes. An oil combustor equipped with a pressure equalizing valve that opens and closes.