JPH08233269A - Ignition device of oil burning appliance of type wherein wick is moved vertically - Google Patents

Abstract

PURPOSE: To improve an ignition performance even in a state wherein white fuel vapor is produced and ignition fails, in regard to an ignition device using an ignition heater, of an oil burning appliance of a type wherein a wick is moved vertically. CONSTITUTION: In an oil burning appliance wherein a wick 3 is fitted in a wick holding tube 2 so that it can be moved vertically and wherein an ignition heater 5 of a glowing type is made opposed to the upper part of the wick 3 moved up and the wick 3 is ignited by electrifying the ignition heater 5, a suction pump 4 sucking vaporization gas from the wick 3 vaporized at the time of the extinction by lowering the wick is fitted, and deodorization at the time of the extinction is executed by discharging the vaporization gas outside. An intermittence timer operating at the time of electrification of the ignition heater 5 is provided, on the other hand, and the suction pump 4 is operated intermittently at the time of ignition, too, by the intermittence timer so as to suck intermittently the vaporization gas produced in the vicinity of the ignition heater 5. Thereby an ignition performance is improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention improves the ignition performance of a petroleum combustor with a core above and below.

[0002]

2. Description of the Related Art In a petroleum combustor using a wick, a combustion cylinder is mounted on a wick containing cylinder, and the wick is raised to look under the combustion cylinder and fixed or moved to an ignition heater. It energizes to make it red hot, and this heat vaporizes kerosene from the wick, ignites this vaporized gas, and this flame ignites at the upper end of the wick to start combustion, and most of the currently marketed The core up-down type oil combustor is of this type.

Further, in the core up-down type oil combustor, the vaporized gas vaporized from the core immediately after the core is lowered and extinguished is thermally decomposed when passing through the still high temperature combustion cylinder immediately after the fire is extinguished to generate a strong malodor. However, this disadvantage is that an oil combustor with a shorter fire extinguishing time and higher safety has a bad odor.

For this reason, in recent core up-down type oil combustors,
It is equipped with a suction pump that has a suction port that communicates with the space between the wick and the wick, and sucks the vaporized gas that evaporates from the wick immediately after extinguishing the fire with the suction pump to separate it from the hot combustion cylinder. It is released into the frame of No. 1 and prevents vaporized gas from passing through the high temperature combustion cylinder to prevent generation of strong odor.

[0005]

When igniting the upper part of the wick by a red-hot ignition heater, the most important point is the positional relationship between the wick and the ignition heater. In the most commercially available type of ignition device with a structure in which the ignition heater approaches the wick, the ignition heater approaches the wick by strongly pressing the operation knob, so the wick and the ignition heater are too far apart and ignition failure occurs. The reason why ignition is not possible even if the battery is replaced with a new dry battery is that the wick and the ignition heater are too close to each other.

When the coil portion of the ignition heater touches the core, not only the red heat of the coil deteriorates, but also a large amount of vaporized gas is generated from the core to wrap the coil portion of the ignition heater to generate white vapor. It is a condition that cannot be ignited. In addition, this state is likely to occur even when the power source of the dry battery is deteriorated, and when white vapor is generated from the ignition heater portion, almost no ignition is possible.

[0007]

SUMMARY OF THE INVENTION The present invention improves ignition performance by utilizing a suction pump used as a deodorizing mechanism for extinguishing a fire in a recent oil wick type oil combustor.
And a suction pump 4 provided above the oil tank 1 and provided with a wick housing 2 in which the wick 3 is vertically movably mounted, and a suction port 4a communicating with a gap between the wick housing 2 and the wick 3. And a suction pump 4 is operated for a short time to extinguish the core to prevent a bad odor from occurring during the extinguishing of the fire, and an ignition heater 5 for energizing at the time of ignition is provided in the vicinity of the upper part of the raised wick 3 and the ignition heater 5 is provided. In an up-down core type petroleum combustor in which the suction pump 4 and the suction pump 4 are supplied from the same power source, an intermittent timer 6 that operates when the ignition heater 5 is energized is provided, and the intermittent timer 6 operates the suction pump 4 intermittently.

[0008]

The wick 3 is vertically movably mounted in the gap of the wick housing cylinder 2. When the ignition heater 5 near the upper end of the wick 3 which has been raised is energized, the intermittent timer 6 is also activated. The intermittent timer 6 intermittently operates the suction pump 4 while the ignition heater 5 is energized. During the operation of the suction pump 4, a part of the vaporized gas vaporized from the core 3 by the ignition heater 5 is partially charged into the core 3 and the core housing cylinder. The gas is sucked into the gap between the two and the concentration of vaporized gas near the ignition heater 5 is reduced. Next, when the suction pump 4 is stopped, the red heat of the ignition heater 5 sharing the power source is improved, and the vaporized gas rises conversely, while the suction pump 4 is stopped.
Since fresh air was flowing in the vicinity of the ignition heater 5 until just before, the ignition was started when the mixing ratio of the vaporized gas and the air approached the mixed gas concentration suitable for ignition.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to the embodiments shown in the drawings. 1 is an oil tank, 2 is a core outer cylinder 2a which is erected from the top plate of the oil tank 1, and an inner core which is erected from the bottom plate of the oil tank 1. A wick containing cylinder configured with the barrel 2b, 3 is a wick mounted in a gap of the wick containing barrel 2, 7 is a combustion barrel mounted on an upper end of the wick containing barrel 2, and a lower end of the wick 3 is inside the oil tank 1. Stretched into the fuel of
When the lead 3 is lifted by the lead up / down device (not shown),
The upper end of the wick 3 projects below the combustion tube 7.

Reference numeral 4 denotes a suction pump attached to the upper surface plate of the oil tank 1, and 4a denotes a suction port of the suction pump 4, which suction port 4
By opening a in the upper space of the oil tank 1, a communicates with the gap between the wick housing 2 and the wick 3, and the suction motor 4
By operating b, air reaches the upper space of the oil tank 1 from the vicinity of the upper end of the wick 3 through the gap between the wick 2 and the wick 3, and is discharged by the suction pump 4 into the frame of the oil combustor. .

Reference numeral 8 is a delay timer attached to the circuit of the power source 9 using a dry battery, and 10 is an operation switch for opening and closing in conjunction with the upper and lower cores. When the operation switch 10 is switched to the core raising side, the delay timer 8 is in an activated state. Becomes

After that, when the lead 3 is lowered to extinguish the fire, the operation switch 10 is switched to the lowering side, and the delay timer 8
Makes the drive transistor 11 of the suction motor 4b conductive.
Therefore, the vaporized gas that is vaporized from the wick 3 that has fallen into the gap of the wick housing cylinder 2 is discharged into the frame body by the suction pump 4, so that it is possible to prevent the generation of a foul odor during fire extinguishing.

Reference numeral 5 indicates an ignition heater which approaches the upper end of the wick 3 which has risen. Reference numeral 5a indicates an ignition door for making an opening for ignition in the wick housing 2. Reference numeral 5b indicates the ignition heater 5 while opening the ignition door 5a.
An ignition knob 12 is provided near the upper end of the ignition switch 12, and an ignition switch 12 is attached to the circuit of the power source 9 using a dry battery. When the ignition knob 5b is pressed, the ignition door 5a opens and the ignition heater 5 approaches the core 3, while the ignition switch 12 closes and the coil portion at the tip of the ignition heater 3 becomes red and the core 3 is closed.
It ignites.

Reference numeral 6 denotes an intermittent timer that operates when the ignition heater 5 is energized. When the ignition switch 5 is energized by the ignition switch 12, the ignition heater 5 becomes red hot and the intermittent timer 6 operates. The intermittent timer 6 of the embodiment repeats OFF for 5 seconds and ON for 2 seconds, and when the ON time is reached, the drive transistor 11 is activated to rotate the suction motor 4b.

Therefore, the suction pump 4 is intermittently operated, and when the suction pump 4 is operated, the vaporized gas vaporized from the wick 3 by the ignition heater 5 is sucked into the gap of the wick housing cylinder 2 and the coil portion of the igniter heater 5 is drawn. Has more air, then
When the suction pump 4 is stopped, the vaporized gas vaporized by the heat of the ignition heater 5 is mixed with air to increase the mixing ratio, and ignition is performed when the mixing ratio becomes suitable for ignition. Also,
When the suction pump 4 is operated in the state of the rich mixed gas, the rich mixed gas is sucked into the gap of the lead housing cylinder 2 and the mixing ratio becomes thin, so that an ignition chance is created.

Conventionally, when the coil portion at the tip of the ignition heater 5 touches the core 3, the ignition heater 5 produces a large amount of vaporized gas while being cooled. At this time, the ignition heater 5 vaporizes around the coil portion. Since only gas cannot be supplied with oxygen and the heat of the ignition heater 5 is also used for thermal decomposition of the vaporized gas, the red heat state is further deteriorated. Therefore, the ignition condition becomes very bad, and when white vapor of fuel is generated from the wick 3, almost no ignition is possible.

According to the present invention, since the suction pump 4 works to allow fresh air to flow into the coil portion of the ignition heater 5, the redness of the ignition heater 5 is improved and the reliability of ignition is improved.
Further, when the capacity of the power source is limited like the dry battery power source, the red heat of the suction pump 4 is poor during operation, the suction pump 4 is stopped, and the red heat of the ignition heater 5 suddenly improves, and the amount of vaporized gas increases. When the white fuel vapor cannot be ignited by using the exhausted dry battery, the probability of ignition is greatly improved.

[0018]

As described above, according to the present invention, when the coil portion of the ignition heater 5 is in contact with the wick 3 or the power supply voltage is lowered, only the white fuel vapor is emitted, and it is difficult to ignite. It was possible to increase the certainty of ignition.

Further, in order to improve the ignition performance, a simple intermittent timer 6 is simply added to the fire extinguishing and deodorizing mechanism using the conventional suction pump 4, and the intermittent timer 6 controls the conventional suction pump 4. Since it is only added to the printed circuit board, the cost increase is negligible with the additional electronic component cost, and it has become possible to suppress the price increase to a cheap oil combustor with a very small increase.

Further, it is almost impossible for the operator to carry out the conventional method of improving the ignition performance by finely adjusting the mounting gap between the wick 3 and the ignition heater 5, and in many cases, the ignition device is damaged. Ignition was performed by a match, but by implementing the present invention, the ignition performance is improved, and even a considerably consumed power source can be ignited, so that the handling is improved.

[Brief description of drawings]

FIG. 1 is a sectional view of an oil combustor using an ignition device according to the present invention.

FIG. 2 is a plan view showing a main part of the ignition device according to the present invention.

FIG. 3 is an electric circuit diagram used in the ignition device according to the present invention.

[Explanation of symbols]

 1 oil tank 2 lead storage cylinder 3 lead 4 suction pump 4a suction port 5 ignition heater 6 intermittent timer

Claims (1)

[Claims] 1. An oil tank 1 and a lead accommodating cylinder 2 mounted above the oil tank 1 and on which a lead 3 is vertically movably mounted.
And a suction pump 4 provided with a suction port 4a communicating with the gap between the wick housing 2 and the wick 3. The suction pump 4 is operated for a short time at the time of extinguishing the core to prevent the generation of a foul odor at the time of extinguishing the fire. In an upper and lower wick type petroleum combustor in which an ignition heater 5 for energizing at the time of ignition is provided in the vicinity of the upper portion of the raised wick 3, and the ignition heater 5 and the suction pump 4 are supplied from the same power source, the ignition heater 5 is activated when energizing. An ignition device for an up-down core type petroleum combustor, which is provided with an intermittent timer 6 for operating the suction pump 4 intermittently by the intermittent timer 6.