JPS58198611A - Kerosene burner - Google Patents

Abstract

PURPOSE:To reduce an offensive smell at the time of extinguishing a fire by a method wherein the kerosene burner is provided with a combustion cylinder and an exhaust gas purification catalyst above an upper opening in the upper end of the combustion cylinder through an exhaust gas passage so that the exhaust gas passage between the upper opening and the exhaust gas purification catalyst is closed at the time of extinguishing the fire. CONSTITUTION:When a lever 7 for moving a wick 5 vertically is pushed down, the wick 5 moves up and a fire extinguishing cylinder 12 lowers to thereby open the exhaust gas passage 18 between the catalyst 16 and the combustion cylinder 4. When the wick 5 is ignited in the above condition, air which has entered the burner from an air intake port 24 by the operation of a ventilating fan 21 passes through a partition plate 19 to be supplied to a blowout port 25 while combustion air is divided into a part to pass through a passage 18 and a port to pass through an exhaust gas passage 20 through vent holes 17 in the catalyst 16. Next, to extinguish the fire on the wick 5, the lever 7 is moved upward whereupon the wick 5 lowers to extinguish the fire and the fire extinguishing cylinder 12 closes the passage 18 to cause almost all the exhaust gases to pass through the vent holes 17 so that the exhaust gas purifying efficiency is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention reduces fire extinguishing odor in an oil combustor having a combustion tube.

Conventionally, methods for reducing fire extinguishing odors from oil combustors include methods of supporting platinum catalysts on heat-resistant glass fibers, or installing exhaust gas purification catalysts such as platinum supported on titanium oxide or manganese in the flue gas passage from the combustion tube. It has been known. However, if a catalyst is installed to block the exhaust gas passage, the pressure in the combustion chamber of the combustion tube will increase and the combustion characteristics will deteriorate.
However, the purification efficiency is poor and the extinguishing odor is not significantly improved.

In the present invention, during combustion, the exhaust gas purification catalyst and the upper end opening of the combustion cylinder are provided with a space between them, and the exhaust gas passage is opened, and when extinguishing a fire with a particularly strong odor, this exhaust gas passage is closed, and when the fire is extinguished, all the exhaust gas is By passing through the exhaust gas purification melting medium, the purification rate is improved and the odor during extinguishing the fire is significantly reduced.

An embodiment of the present invention will be described below based on the drawings.

In Figures 1 to 3, reference numeral 1 denotes a dual-tube type burner consisting of a cylindrical inner flame tube 2 having a large number of pores and a cylindrical outer flame tube 3, which is built in a combustion tube 4. has been done. 5 is a cylindrical wick that sucks up the fuel in the tank 6, and the wick up/down lever 7
via pin 8. The core up and down lever 7 is 9
is used as a fulcrum and is connected to the interlocking lever 11 via a pin 1o.

Further, the other end of the interlocking lever 11 is connected to a combustion cylinder 12 via a pin 11'. As shown in FIG. 2, the bin 11' is interlocked via the balance lever 13 and slides downward along the slide hole 15 of the blast tube 14.

16 is a disk-shaped exhaust gas purification catalyst having a large number of vent holes 17, and is made of platinum supported on titanium oxide or manganese. This exhaust gas purification catalyst 16 is located with an exhaust gas passage 18 having a gap between it and the upper end opening of the combustion cylinder 4, and further with an exhaust gas passage 20 between it and a disk-shaped partition plate 19. 21 is a blower fan, and 22 is a motor. 23 is an exterior case, with an air intake 24 at the top and a hot air hole at the bottom.
* m C105t Rn (Ih b.

The present embodiment has been constructed from the above-mentioned configuration, and the operation will now be explained.

As shown in Fig. 1, when the right end of the wick lower <-7 is pushed down in the direction of the arrow, it will rise above the wick SFi. On the other hand, the fire extinguisher cylinder 12 connected to the interlocking lever 11 is lowered along the slide hole 15, and the exhaust gas passage 18 defined by the space between the exhaust gas purification catalyst 16 and the upper end opening of the combustion cylinder 4 is opened.

When the lamp wick 6 is ignited and the blower fan 21 is rotated, air is sucked through the air intake [124] as shown by the solid line arrow, and is sent to the hot air outlet 25 through the outer periphery of the partition plate 19, while the combustion air is is supplied from the bottom of the burner 1 by the Venturi effect of the air as shown by arrow A. As shown by the broken line arrow, the combustion exhaust gas is divided into two parts: one that flows into the exhaust gas passage 18 and the other that passes through the vent hole 17 of the exhaust gas purification catalyst 16 and the exhaust gas passage 20, and is then discharged from the hot air outlet 25 as warm air for heating. It's blown out. The narrower the exhaust gas passage 18 is, the more exhaust gas passes through the exhaust gas purification catalyst 17, improving the exhaust gas purification ability, but the narrower the exhaust gas passage 18 is, the greater the exhaust resistance becomes, resulting in poor combustion conditions and incomplete combustion. Therefore, during normal combustion.

It is preferable that the exhaust gas passage 18 be made large so that this exhaust resistance is reduced as much as possible.

Next, to explain the state when the lamp is extinguished, as shown in FIG. 3, when the right end of the wick up/down lever 7 is pushed up in the direction of the arrow, the lamp wick 5 is lowered and the lamp is extinguished. On the other hand, the fire extinguishing cylinder 12 connected to the interlocking lever 11 closes the exhaust gas passage 18 at the upper end of the combustion cylinder 4.

Therefore, most of the exhaust gas during extinguishing passes through the vent hole 17 of the exhaust gas purification catalyst 16, the purification efficiency is improved, and the extinguishing odor is extremely reduced.

As can be seen from the above embodiments, the present invention opens the exhaust gas passage at the top of the combustion cylinder during combustion to allow combustion, and when extinguishing the fire, closes the passage and sends almost all the exhaust gas to the exhaust gas purification catalyst side. , greatly reduces fire extinguishing odor.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention, FIG. 2 is a sectional view taken along the line rr in FIG. 1, and FIG. 3 is a longitudinal sectional view of the same essential parts. 4... Combustion cylinder, 16... Exhaust gas purification catalyst, 1... Exhaust gas passage. Name of agent: Patent attorney Uneo Nakao and 1 other person No. 1
Figure 2

Claims (1)

[Claims] A combustion tube and an exhaust gas purification catalyst provided on the -F side of the upper end opening of the combustion tube through an exhaust gas passage, and the exhaust gas passage between the combustion tube upper opening and the exhaust gas purification catalyst is closed when extinguishing the fire. An oil combustor configured to