JPS6399406A - Kerosene combustion apparatus - Google Patents

Abstract

PURPOSE:To heighten the cost performance of a kerosene combustion apparatus, by increasing the combustion capacity at high intensity combustion, as well as to alleviate bad odor at the time of shutdown of combustion, by rotating a fan in the reverse direction from that at the time of descending of a wick when the wick is raised to its maximum height, provided that a fan for alleviating bad odor at the shutdown time rotates forwardly or reversely. CONSTITUTION:When a combustion takes place on a wick 15 at its maximum height, a switch 26 is turned ON, a transistor 33 is turned ON, transistors 34, 35 and 36, 37 are turned ON, and a motor 24 for an air suction means 18 is actuated to drive a fan 23. At this time a voltage inverse to that at the time when a switch 25 is changed over to a normally-opened contact point 25a is applied to the terminal of a motor, so that the fan 23 is rotated reversely, and combustion air outside is sucked into an oil tank 11 through a passage 22, a fan case 20 and a suction port 19. The air sucked into the oil tank 11 is pushed up to a gap 14 within the wick and is fed into a flame cylinder 17. The evaporating rate of fuel on the wick 15 and the rate of combustion air are increased, as a result combustion capacity on the wick at high intensity combustion can be increased.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a wick type oil combustor.

BACKGROUND OF THE INVENTION Conventionally, as shown in FIG. 4, a wick type oil combustor is provided with a suction means 2 made of a turbo fan or the like and communicated with the inside of an oil tank 1. Some devices are designed to activate when descending, greatly reducing the odor when extinguishing a fire. That is, by operating the suction means 2, petroleum vapor that is about to flow out into the combustion cylinder 4 by the draft is sucked into the oil tank 1, and released into the atmosphere without being thermally decomposed, thereby eliminating the irritating fire extinguishing odor. We are beginning to see products that have been reduced to a large extent.

Problems to be Solved by the Invention However, the suction means 2 requires a motor 5, a fan 6, a fan case 7, a control circuit (not shown), etc.
This will significantly increase costs. Therefore, reducing odor during fire extinguishing alone is not cost effective.

The present invention has been made in view of these points, and aims to reduce fire extinguishing odor and expand Hl combustion capacity, thereby achieving high cost performance.

Means for Solving the Problems In order to achieve the above object, the present invention configures a fan for reducing fire extinguishing odor so that it can be rotated forward and backward, and when the wick is at its maximum rise, the fan is rotated in the opposite direction to when the wick is lowered. It is.

Function: With the above-described configuration, the present invention suctions petroleum vapor generated when extinguishing a fire to suppress the odor of extinguishing the fire, and at the time of maximum combustion, a switch is activated to rotate the fan in reverse to supply air in the oil tank to the combustion section. By increasing the amount of vaporization of the wick, the H1 combustion capacity is expanded.

EXAMPLE Below, one example will be described with reference to FIGS. 1 to 3. 11 is an oil tank, 12 is a core guide tube installed in the oil tank 11, and 13 is a core fixed on the oil tank 11. An outer cylinder, 14 is a core gap formed by the core guide cylinder 12 and the core outer cylinder 13, 15 is a core provided in this core gap 14, and the core guide cylinder 12
, the tips of the core outer cylinder 13 are exposed to an appropriate extent above the inner and outer fire pans 12' and 13', respectively. 16
is a lead up/down mechanism, which is configured to allow emergency (rapid) lowering of the lead 15. 17 is a combustion cylinder, an inner fire plate 12',
It is placed on an outer fire pan 13' and is configured to mix and burn inside. 18 is a suction means fixed on the oil tank 11, which sucks and discharges the air in the oil tank 11 from the suction port 19 of the oil tank 11.The structure will be explained below. A fan case covered over 19 connects the inside of the oil tank 11 and the atmosphere 21.
A passage 22 is formed to communicate with each other. Reference numeral 23 denotes a fan that can be rotated in forward and reverse directions and is provided in the middle of this passage 22, and is driven by a motor 24 attached to the fan case 20.

FIG. 3 shows the drive circuit of the motor 24, 25.26
is a switch connected to the power supply circuit to the motor 24, and one switch 25 is provided near the core up/down mechanism 16 as shown in FIG. 2, and when the core 15 is lowered, the normally open contact 2
It is designed to switch to the 5a side. The other switch 26 is also provided near the lead up/down mechanism 16 as shown in FIG. 2, and is turned on when the lead 15 is raised to its maximum level. That is, when the core 15 falls, the switch 25 switches to the normally open terminal 25a side, and the transistor 27
, then transistors 28, 29 and 30
, 31 are ONL, and while the charging voltage of the capacitor 32 is ONL, the transistor 27 is ONL, electricity is supplied from the dry battery 3o to the motor 24, and the motor, that is, the fan 23.
is now working. When the lead 15 rises to the maximum, one of the switches 26 turns on the transistor 33, and then the transistor 34 and a5 turn on.
and turn on 36 and 37 to connect the motor 24 from the dry battery 30.
supply electricity to At this time, a voltage opposite to that when the switch 25 is turned on is supplied, causing the motor, that is, the fan, to rotate in the reverse direction. Further, the rotation speed of the fan can be varied by a variable resistor 38.

In the above configuration, the core 15 is operated by operating the core up/down mechanism 16.
If a suitable amount of the flame is exposed on the inner fire pan 12' and the outer fire pan 13' and ignited, it burns in the combustion tube 17 and it becomes possible to collect heat. When the wick up/down mechanism 16 is operated, the wick 15 rapidly descends and sinks into the wick gap 14 to a predetermined depth to extinguish the fire. At this time,
The switch 25 is switched to the normally open terminal 25a, and the charging voltage of the capacitor 32 turns on the transistor 27, and then turns on the transistors 28, 29 and 30, 31 to supply electricity to the motor 24 of the suction means 18. This causes the fan 23 to operate, sucking and discharging the air in the oil tank 11. As a result, the inside of the oil tank 11 becomes negative pressure and the core gap 1
Air flows in (is sucked in) from the wick 15, and petroleum vapor is sucked into the oil tank 11 from the wick 15 and is discharged to the outside from the passage 22. This operation continues for one minute, for example, while the transistor 27 continues to turn on due to the charging voltage of the capacitor 32.

On the other hand, when the wick 15 is firing at the maximum raised position, the switch 26 is ONL, the transistor 33 is ONL, then the transistors 34, 35 and 36, 37 are ONL,
Electricity is supplied to the motor 24 of the suction means 18 to operate the fan 23. At this time, a voltage opposite to that when the switch 25 is switched to the normally open contact 25a is supplied to the motor terminal, and the fan 23 rotates in the opposite direction.
, outside air is sucked into the oil tank 11 through the suction port 19. The air in the oil tank 11 is then pushed up into the core gap 14 and flows into the combustion tube 17.

As a result, the amount of vaporization of the wick 15 and the amount of combustion air increase, so that the H1 combustion capacity is expanded. Furthermore, in this embodiment, since the rotation speed of the fan 23 can be varied by the variable resistor 38, the amount of combustion can be adjusted accordingly.

Effects of the Invention As is clear from the description of the embodiments, according to the present invention, the suction means can not only prevent the generation of irritating odors during extinguishing, but also expand the H1 combustion capacity, resulting in high cost performance. Become something.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of essential parts of an oil combustor according to an embodiment of the present invention, Fig. 2 is a front view thereof, Fig. 3 is a control circuit diagram of the suction means, and Fig. 4 is a first folded view of a conventional example. It is a diagram. 11... Oil tank, 12... Core guide cylinder, 13... Core outer cylinder, 14... Core gap,
15... Core, 16... Core up and down mechanism, 2
2...Aisle, 23...Fan, 26.
...Switch, 38...Variable resistor. Name of agent: Patent attorney Toshio Nakao and 1 other person14
- Core relationship 15- So, Figure 2

Claims (2)

[Claims] (1) An oil tank with a core gap formed by a core guide tube and a core outer tube, a core disposed in the core gap of this oil tank so as to be able to move up and down, and a core up and down mechanism that moves this core up and down. and a suction means for reducing fire extinguishing odor that sucks the air in the oil tank when the wick is lowered, and the suction means is composed of a fan that can be reversed forward and backward, and reversed when the wick is at its maximum rise to suck out the air inside the oil tank. An oil burner configured to push up into the core gap. (2) The oil combustor according to claim 1, wherein the circuit for reversing the suction means is provided with means for varying the fan rotation speed of the suction means.