JPH05332514A - Safety device for wick lifting-up or descending type petroleum combustion device - Google Patents

Abstract

PURPOSE:To perform an automatic flame diminishing in a wick lifting-up or descending type petroleum combustion device during an abnormal combustion or another abnormal combustion caused by wrong fuel of gasoline and the like. CONSTITUTION:There is provided an automatic flame diminishing device in which a wick lifting-up or descending shaft 4 for use in moving up or moving down a wick 2 held in a wick storing cylinder 3 is rotated by a flame diminishing spring in a wick descending direction. An operating plate 6 for energizing the flame diminishing device is engaged with a vibration- sensitive unit 7 and at the same time there is provided an operation engaging plate 8 for use in driving the operating plate 6 with a signal other than that of the vibration-sensitive unit 7. The operation engaging plate 8 is engaged with a thermal deformation mechanism 9 connected near the wick storing cylinder 3, the thermal deformation mechanism 9 is deformed with heat of the wick storing cylinder 3 showing a high temperature during an abnormal combustion. The operating plate 6 is moved by the operation engaging plate 8 so as to perform an automatic flame diminishing. In a system in which a valve 11. is fixed to a wall of the wick storing cylinder 3 for shortening a flame diminishing time, the thermal deformation mechanism 9 is fixed near the valve 11 and as an induced combustion is started at the valve 11, the flame diminishing device is operated fast.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an upper and lower core type oil combustor which is provided with a mechanism for preventing abnormal rising flame, and relates to improvement of safety.

[0002]

2. Description of the Related Art A vertical core type oil combustor moves up a core housed in a core housing cylinder, burns it by a burner connected to the core housing cylinder, and adjusts heat power by moving the core vertically.
Further, the fire extinguishing operation is to extinguish the fire by lowering the lead below the lead containing cylinder.

If the fire is extinguished by simply lowering the wick into the wick housing cylinder, 100 to 100% is required until the burner completely extinguishes the fire.
It was common to extinguish a fire in 300 seconds. The reason for extinguishing the fire by taking this long time is that the ambient temperature rises during combustion, and the temperature and internal pressure inside the wick and the oil tank are increasing. The inside was filled with vaporized gas, and it took a long time for the gas to burn out.

Many attempts have been made to shorten the time for extinguishing the fire, and the applicant has also taken the advantage of the fact that the applicant has already published a Japanese Utility Model Publication No. 49-47225.
In No. 6, a small hole is opened in the wick housing, the combustion wick and the wick housing cylinder wall are in close contact during combustion, making it almost impossible for air to flow in through the small hole. We devised a method of extinguishing fire for a short time by allowing air to flow into the upper part.

Further, an air chamber is provided on the outer periphery of the wick, and a valve that opens during combustion is attached to the air chamber so that even if the temperature rises during combustion, the air chamber is not filled with vaporized gas to extinguish a fire. Japanese Patent Publication No. 61-25962 has announced a method for shortening the time and preventing abnormal flame formation during fire extinguishing operations.

Further, looking at Japanese Utility Model Publication No. 55-18649, contrary to the preceding paragraph, the air chamber on the outer periphery of the wick is filled with vaporized gas during combustion, and the valve is opened at the time of fire extinguishing operation to produce this vaporized gas. It has been announced that the fire will be extinguished and blown out by a blast to shorten the fire extinguishing time.

[0007]

By the way, in order to burn with the burner, it is necessary to ignite the upper end of the raised core, but during this ignition operation, the burner and the core housing cylinder are not normally connected and a gap is created. May be formed. If combustion is continued in this state, abnormal combustion will occur, and the wick housing will heat up and cause an abnormal flame. It is necessary to quickly extinguish the fire and maintain safety.

Further, in order to shorten the fire extinguishing time, a structure in which a small hole is opened in the wick housing or a valve is provided, if the user mistakenly uses highly volatile gasoline or the like instead of kerosene, a small hole or Gasoline vapor may leak from the valve and burn, causing the wick housing to become abnormally hot and causing the fuel in the oil tank to ignite, resulting in a fire accident.

The applicant, in Japanese Patent Publication No. 61-25962, previously provided a valve connected to the outside air in an air chamber adjacent to the core accommodating cylinder. This valve works in conjunction with the upper and lower sides of the core to open when the core is raised and lower the core. We sometimes invented an oil combustor with a structure that closes it, but this method has a high risk when the user accidentally uses highly volatile fuel such as gasoline because the valve is opened during combustion. there were.

[0010]

The present invention proposes the following in order to solve the above-mentioned danger. That is, the upper portion is connected to the burner 1, and the lead housing cylinder 3 that holds the lead 2 in a vertically movable manner, the lead vertical shaft 4 that vertically moves the lead 2 held in the lead housing cylinder 3, and the lead vertical shaft 4 The fire-extinguishing spring 5 that drives in the lowering direction, the operating plate 6 that locks the accumulated force of the fire-extinguishing spring 5, and the vibration absorber 7 that detects vibration such as an earthquake are provided. In an up-and-down core type oil combustor in which an automatic fire extinguishing device using a fire extinguishing spring 5 is formed in association with each other, an operation locking plate 8 that drives an operation plate 6 by a signal other than the vibration absorber 7 and a wick housing tube 3
And a thermal deformation mechanism 9 connected in the vicinity of the operating deformation plate 9, and the operation locking plate 8 is engaged with the thermal deformation mechanism 9 to hold the position apart from the operation plate 6 in the normal state. This is a safety device for a petroleum combustor that moves up and down to operate an automatic fire extinguisher.

Further, the wick housing cylinder 3 is provided with an air chamber 10 adjacent to the wick 2, and a valve 11 for communicating the air chamber 10 with the outside air.
The valve 11 is configured to open when the lead is raised and to close when the lead is lowered in conjunction with the lead vertical shaft 4.
The thermal deformation mechanism 9 connected to the wick housing cylinder 3 is mounted near the valve 11 so as to quickly and automatically extinguish a fire in the event of an abnormality.

[0012]

The operation of the present invention will be described below.
When the wick 2 housed inside is ignited by rotating the wick vertical shaft 4 and raising it, the upper burner 1 starts combustion and is used for heating or cooking.

At this time, if there is an abnormality in the connecting portion between the lead storage cylinder 3 and the burner 1, more air than necessary flows into the burner 1 to cause abnormal combustion, and the lead storage cylinder 3 is heated. Also, if you make a mistake in fuel and use gasoline instead of kerosene,
The calorific value of the burner 1 becomes abnormally large, and the temperature of each part including the lead housing cylinder 3 rises.

When the combustion is started normally, the lead containing cylinder 3
Even if the air chamber 10 is provided adjacent to the wick 2 and the valve 11 that communicates the air chamber 10 with the outside air is opened during combustion, the combustion heat causes an upward draft in the gap in the wick housing cylinder 3. However, since the outside air is sucked into the burner 1 via the valve 3 and the air chamber 2, the vaporized gas does not stay in the air chamber 2 and the vaporized gas does not flow out.

In the above structure, the fuel may be mistakenly supplied to replenish a highly volatile fuel such as gasoline. When gasoline is used, the calorific value of the burner 1 is abnormally increased, and a large amount of vaporized gas is generated in the valve 3. After that, it leaks to the outside air.
Since the vaporized gas is very flammable gasoline, the fire of the burner 1 ignites the valve 3 and the area around the valve 3 begins to burn first.

According to the present invention, an actuating locking plate 8 for moving the actuating plate 6 which is a starting member of the automatic fire extinguisher is provided, and a thermal deformation mechanism 9 is provided in the vicinity of the lead accommodating cylinder 3, and the actuating locking plate 8 is provided. Is locked to the thermal deformation mechanism 9 to stop its movement. If a combustion abnormality occurs and the temperature of the lead storage tube 3 becomes high, the lead storage tube 3
Since the thermal deformation mechanism 8 connected to is melted or deformed, the operation locking plate 8 which has been stopped by the thermal deformation mechanism 8 until now drives the operation plate 6. For this reason, the wick vertical axis 4 lowers the wick 2 by the action of the fire extinguishing spring 5 to extinguish an emergency.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to FIG. 1 (a partially cutaway front view showing the essential parts of the present invention) and FIG. 2 (a partially cutaway plan view showing the essential parts of the present invention). The configuration will be described with reference to FIG. 3 (a front view of a core lifting device showing another embodiment) and FIG. 4 (a plan view of a core lifting device showing another embodiment).

Reference numeral 1 is a burner constituted by a recuperative combustion cylinder, 2 is a core whose tip is desired to be inside the burner 1 at the time of raising the core, 3 is a core accommodating cylinder for holding the core 2 therein, and 10 is adjacent to the core 2. The air chamber 10 is formed by bulging the lead housing cylinder 3 in such a manner that the air chamber 10 is a holding chamber of the lead up / down mechanism and forms a preliminary chamber for extinguishing a fire. Reference numeral 11 denotes a valve having an opening / closing function, which is attached to an opening that communicates the air chamber 10 with the outside air.

Reference numeral 4 denotes a core vertical shaft for vertically moving the core 2 held in the core housing cylinder 3, reference numeral 12 denotes a pinion gear attached to the tip of the core vertical shaft 4, and reference numeral 13 denotes a core holding cylinder driven by rotation of the pinion gear 12. Reference numeral 14 is a cam plate attached to the lead holding cylinder 13. The lead holding cylinder 13 moves the lead 2 up and down, and
The valve 11 is also opened / closed by 4. The valve 11 of the embodiment shown in FIGS. 1 and 2 opens when the core is raised and closes when the core is lowered.

Reference numeral 5 is a fire-extinguishing spring for driving the core up-down shaft 4 in the core-lowering direction, 15 is a gear driven by the fire-extinguishing spring 5, and 6
Is an operating plate that meshes with the gear 15 to lock the stored force of the fire-extinguishing spring 5, and 7 is a vibration absorber (pendulum type weight, etc.) that detects vibration such as an earthquake. When the gear 6 moves, the gear 15 and the operating plate 6 are disengaged, and the fire extinguishing spring 5 forcibly lowers the lead 2.

Reference numeral 8 denotes an actuating locking plate provided in the vicinity of the actuating plate 6 for starting the fire extinguisher, and 16 denotes the actuating locking plate 8 for actuating plate 6.
Is a pressing spring that is driven toward the side, and 9 is a thermal deformation mechanism that is connected and attached near the core housing cylinder 3. The thermal deformation mechanism 9 is made of a flammable string-shaped member or plastic, and normally operates and locks. The plate 8 is held at a position separated from the operating plate 6 by the thermal deformation mechanism 9. Then, when the core accommodating cylinder 3 becomes hot and the thermal deformation mechanism 8 melts due to heat, burns, and is deformed or separated, the actuating locking plate 8 is actuated by the force of the push spring 16.
Is to move to automatically extinguish the fire.

In the embodiment shown in FIGS. 1 and 2, the thermal deformation mechanism 9 is used.
Is attached to a valve 11 provided in an air chamber 10 of the lead-accommodating cylinder 3 through a fixture 17, and when the temperature of the valve 11 becomes high, the thermal deformation mechanism 9 is deformed by heat conduction.

In the embodiment shown in FIGS. 3 and 4, the core vertical shaft 4 is rotated by the operating lever 18, and the gear 15 and the operating plate 6 are used.
When it is disengaged from the
Rotates, and the wick vertical shaft 4 also rotates in the fire extinguishing direction. Further, the operation locking plate 8 is composed of a leaf spring having a function of a push spring,
The thermal deformation mechanism 9 fixed to the core housing cylinder 3 stops the movement of the actuating locking plate 8, and if the thermal deformation mechanism 9 is deformed by the heat of the core housing cylinder 3, the actuating locking plate 8 will have its own spring. The actuating plate 6 is moved by force.

[0024]

As described above, the present invention has the above-mentioned structure and operation. Since the thermal deformation mechanism 9 connected to the lead housing cylinder 3 and the actuating locking plate 8 are engaged, the user should not use it. Accidentally uses fuel such as gasoline, so that even if the burner 1 abnormally burns, the thermal deformation mechanism 9 is burned or melted early, so that the thermal deformation mechanism 9 engages with the operating locking plate 8. Is released and the actuating plate 6 is moved for automatic fire extinguishing regardless of the signal from the vibration sensor 7, so that no fire will occur and it is safe.

Further, after the ignition operation, the user did not return the burner 1 to the correct position on the lead housing tube 3,
Even when the flame comes out of the vessel due to abnormal combustion, the wick housing cylinder 3 is heated. Therefore, if the heat changing mechanism 8 is deformed by the flame or the temperature of the wick housing cylinder 3, the heat transforming mechanism 9 is the same as above. Is disengaged from the actuating locking plate 8, and the actuating plate 6 is moved to automatically extinguish the fire regardless of the signal from the vibration-sensing device 7, so that no fire will occur and it is safe.

If the user accidentally uses fuel such as gasoline, the structure having the small hole or valve 11 in the wick housing cylinder 3 in order to shorten the fire extinguishing time is very dangerous because of the possibility of ignition. However, in the present invention, since the thermal deformation mechanism 9 is attached in the vicinity of the valve 11, if the valve 11 is ignited, the thermal deformation mechanism 9 immediately deforms and automatically extinguishes, so it is safe, and the fire extinguishing time during the fire extinguishing operation is increased. Never lose the shortening feature.

[Brief description of drawings]

FIG. 1 is a partially cutaway external front view showing a main part of the present invention.

FIG. 2 is a partially cutaway plan view showing an essential part of the present invention.

FIG. 3 is a front view of a core lifting device showing another embodiment.

FIG. 4 is a plan view of a core up-and-down device showing another embodiment.

[Explanation of symbols]

 1 burner 2 core 3 core accommodating cylinder 4 core vertical shaft 5 fire extinguishing spring 6 actuation plate 7 vibration absorber 8 actuation locking plate 9 thermal deformation mechanism 10 air chamber 11 valve

Claims (2)

[Claims] 1. A lead housing cylinder 3 having an upper portion connected to a burner 1 and holding a lead 2 so as to be vertically movable, a lead vertical shaft 4 for vertically moving the lead 2 held in the lead housing cylinder 3, and a lead vertical shaft. 4 is provided with a fire-extinguishing spring 5 for driving the core 4 in the direction of lowering the core, an actuating plate 6 for locking the stored force of the fire-extinguishing spring 5, and a vibration absorber 7 for detecting vibration such as an earthquake. In an up-and-down type petroleum combustor in which an automatic fire extinguishing device using a fire extinguishing spring 5 is configured in cooperation with 6,
An actuating locking plate 8 for driving the actuating plate 6 by a signal other than the vibration absorber 7 and a thermal deformation mechanism 9 connected in the vicinity of the lead housing cylinder 3 are provided. Engages and keeps the position away from the operating plate 6 during normal operation, and when abnormal, the operating plate 6
A safety device for a petroleum combustor that drives the engine and activates an automatic fire extinguisher. 2. The wick accommodating cylinder 3 is adjacent to the wick 2 and is in the air chamber 10.
Is provided with a valve 11 that communicates the air chamber 10 with the outside air. The valve 11 is configured so as to interlock with the core vertical shaft 4 so as to open when the core is raised and close when the core is lowered. 2. The safety device for a petroleum combustor according to claim 1, wherein the thermal deformation mechanism 9 connected to the valve is mounted near the valve 11.