JPS5830505B2 - Automatic fire extinguishing system for oil burners - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention provides a fire extinguishing plate attached to an oil combustor so that the fire extinguishing plate instantly extinguishes the oil when the wick is lowered, and also prevents the occurrence of a bad odor immediately after extinguishing the oil.

Conventionally, as a fire extinguishing structure for an oil combustor, a shield type automatic fire extinguishing system is known that instantly extinguishes the fire by covering the inside of the wick and the upper part of the outer cylinder, or by blocking the wick housing groove.

With this structure, the fire is extinguished by cutting off the supply of oxygen, so raw petroleum gas is continuously released from the wick immediately after the fire is extinguished, and when the raw petroleum gas flows into the heated combustion tube, it is thermally decomposed. , the combustible gas emitted a strong pungent odor.

This invention overcomes the above-mentioned drawbacks and will be explained with reference to the drawings which are examples. 1 is a core housing groove formed by an inner core cylinder 2 and an outer core cylinder 3; 4 is a core housing groove that can be moved vertically into the core housing groove 1 The core 5, which can be freely stored, is a small chamber bulging from the upper part of the core outer cylinder 3.

6 is a plurality of arc-shaped fire extinguishing plates that are stored in the small chamber 5 and extend into the core accommodation groove 1 where the core is lowered to cover the entire circumference; I is a fire extinguishing plate 6;
This is an operating plate located in the small chamber 5 similarly to the above, and rotates when the wick is lowered to advance the fire extinguishing plate 6 into the wick storage groove 1.

Reference numeral 11 denotes an interlocking tube which rotates by the stored force of a spring spring 16 provided on the core vertical shaft 12; 10 is a rank plate that interlocks the movement tube 11 and the actuating plate 1 and has a rack 10';
A pinion gear 9 that meshes with a rack 10' is attached to the tip of the pinion 1, and when the interlocking tube 11 rotates, a spring 16 drives the rack plate 10 to move the actuating plate 7 and advance the extinguishing plate 6 into the core storage groove 1. let

Reference numeral 18 designates a small hole drilled in the wall of the small chamber 5, and when the fire extinguishing plate 6 is stored, the fire extinguishing plate 6 obstructs the wick storage groove 1, almost eliminating air inflow, and when the fire extinguishing plate 6 is advanced, the draft of the combustion tube prevents the small hole from entering. Air is sucked through the hole 18.

The spring 16 stores rotational force by a vibration sensing device (not shown), and when the vibration sensing device is activated, the spring 16 is released and rotates the interlocking tube 11.

In this way, the stored force of the spring 16 is transmitted to the interlocking cylinder 11 and also to the core vertical shaft 12 via the other pin 14, and the core vertical pinion 12' at the tip rotates to connect the core attached to the core 4. By driving the vertical rack 17, the core 4 can be moved up and down.

Reference numeral 15 designates a core up/down knob, to which a clutch plate 13 is attached to manually rotate the core up/down shaft 12 while holding a spring 16 storing rotational force.

That is, the clutch plate 13 is provided with a small hole 13/ through which the pin 14 is slidably inserted, and the clutch plate 13 is screwed with a male screw 15' provided on the core vertical shaft 12 or the knob 15. When the knob 15 is rotated in the direction of raising the core, the male screw 15/ and the clutch plate 13 are tightened and integrated, and the spring 16 is wound up via the pin 14, and the core 4 can be raised.

Also, when the knob 15 is reversed, the clutch plate 13 is moved to the pin 14.
Since the clutch plate 13 is prevented from rotating by the male screw 15', the core vertical shaft 12 can be rotated, and the core can be lowered.

Furthermore, when the spring 16 is released when the core rises, the spring 16 moves to the pin 1.
4, and since the male screw 15 and the clutch plate 13 are in a tightened state, the rotational force is directly transmitted to the core vertical shaft 12, and the core 4 can be automatically lowered.

Reference numeral 8 denotes a guide plate that holds the fire extinguishing plate 6 between it and the actuating plate 7, and the actuating plate 7 is provided with a long hole 7' and a pin T''.

Further, in the fire extinguishing plate 6, a pin 6" that is visible from the actuating plate 1 and fits into the elongated hole 71, and an elongated hole 6' that fits with the pin 7" of the actuating plate 7.
and a pin 6t// toward the guide plate 8,
5 /If/ is provided, and the guide plate 8 is provided with a fire extinguishing plate 6.
Elongated holes 8' are provided to fit the pins 6/'' and 6////.

The guide plate 8 is fixed to the chamber 5 and therefore the pin 6
, //, 6//// and the elongated hole 8' are fitted together, and the fire extinguishing plate 6 can advance toward the core inner cylinder 2 of the core housing groove 1 along the elongated hole 8'.

Also, the elongated holes 6' of the fire extinguishing plate 6 and the operating plate 7? Since ' is provided at an angle, the pins 6'' and 7'' fit into the long holes 6' and 7' to drive the fire extinguishing plate 6 when the actuating plate 7 is rotated.

The driving direction is regulated by the guide plate as described above, and the core receiving groove 1 can be shielded.

Long hole 6'? Since a circular arc-shaped hole is provided from the end of the inclined part, the fitting for the fitting range a between the long holes 6' and 7' and the pins 6'' and 1'' is initially performed in the circular circular part. Therefore, the fire extinguishing plate 6 is not driven while the wick 4 is lowered, and after the wick 4 is lowered, the fire extinguishing plate 6 is engaged with the slope of the fitting range.
is driven, and a time lag is provided between the vertical movement of the wick 4 and the driving of the fire extinguishing board 6, so that the fire extinguishing board 6 intersects the wick 4 in a riddle.

In the present invention constructed as described above, the fire extinguishing plate 6 is advanced into the core housing groove 1 by the force of the spring 16 to seal it, and after the core housing groove 1 is sealed, the small hole 18 is opened. Air can flow into the wick housing groove 1 by the draft of the combustion tube.

Therefore, since the wick receiving groove is cooled by the inflowing air, there is no risk of re-ignition, resulting in high safety.

In addition, the draft of the combustion tube also affects the wick accommodation groove 1.
In addition, since the sealing with the fire extinguishing board 6 is done mechanically and the sealing is substantially difficult, and the bottom part of the fire extinguishing board 6 is also covered, the wick 4
The petroleum gas vaporized from the fire extinguishing plate 6 flows into the combustion cylinder at a high temperature.

For this reason, if there is a large amount, it may turn into embers, and after the fire is extinguished, the petroleum gas may be thermally decomposed by the high-temperature combustion tube, causing a foul odor.
However, in this invention, air can flow in through the small holes 18, so the combustion tube no longer sucks in the petroleum scum below the fire extinguishing plate 6, increasing the reliability of fire extinguishing and eliminating the generation of foul odors. could be prevented.

[Brief explanation of drawings]

FIG. 1 is a longitudinal cross-sectional view of the main part of an oil combustor according to the present invention;
FIG. 2 is a sectional view taken along the line A-A in FIG. 1, FIG. 3 is a cross-sectional view taken along line A-A showing the same combustion state, and A1 in FIG. 4. C is a plan view of the parts. 1... Core accommodation groove, 2... Core inner cylinder, 3.
... Core outer cylinder, 4 ... Core, 5 ...
Small room, 6... Fire extinguishing board, 7... Operating board,
11... Interlocking tube, 12... Core vertical axis, 1
6... Spring, 18... Small hole.

Claims (1)

[Claims] 1. A fire extinguishing plate 6 that can freely move forward and backward into the core housing groove 1 formed by the core inner and outer cylinders 2 and 3 is stored in a small chamber 5 that can expand above the core outer cylinder 3. Fire extinguishing plate 6 with rotating motion
In an oil combustor equipped with an actuating plate 7 that allows the core to advance into the core housing groove 1, the actuating plate 1 is driven by an interlocking tube 11 that rotates with the stored force of a spring 16 provided on the core vertical shaft 12, and the small chamber 5. An automatic fire extinguishing system for an oil burner characterized by having a small hole 18 in the wall.