JPS58160718A - Wick type oil burning device - Google Patents

Abstract

PURPOSE:To reduce the producing of hydrocarbon compound and odor at the cut-off of burning of the titled device by a method wherein a suction means of a igniting heater is still operated during a certain period after the cut-off of burning. CONSTITUTION:Just after the cut-off of burning, large amount of unburned gas still remains in a burning chamber 6. When a wick 3 is lowered by the burning cut-off operation, an igniting heater 8 and a fan 17 are simultaneously electrified and kept at electrified condition during designated period. The condition in said burning chamber 6 after the cut-off of burning is kept under negative pressure by the ejector effect produced by the air flow from said fan 17. Accordingly, the air is introduced into said burning chamber 6 from air openings 13 of an outer fine tray part 12 and air openings 14a of a burner 14. Thereby, whole space area of said ring-shaped burning chamber 6 is rapidly maintained at combustible condition. A flame ignited by said igniting heater 8 is instantly spread over whole space area inside of said burning chamber 6, the remaining unburned gas is burnt out. Thus, the producing of hydrocarbon compound and odor can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wick-type oil combustion device, and is intended to significantly reduce odor and generation of hydrocarbon compounds during extinguishing.

Generally, when a wick-type oil combustion device is extinguished, a large amount of residual unburned gas is generated, and when it rises with hot air and passes through a high temperature area such as a combustion tube, a portion of it is decomposed to produce hydrocarbon compounds such as aldehydes, which remain unburned. There was concern that the gases would be emitted outside the machine, and that they would give off a strong, pungent odor that would cause discomfort to users and harm their health.

In order to solve this problem, we considered burning the unburned gas by energizing the ignition heater for a certain period of time after extinguishing the fire. However, in this case, the wick-type oil combustion equipment generally has a unique structure in which the wick is cylindrical and the combustion chamber space is ring-shaped, so even if the unburned gas is ignited by the ignition heater when extinguishing, Only the area near the flame ignited by the ignition heater obtains air sucked in from the pores at the bottom of the burner due to the draft of the flame and burns.As there is almost no air inflow to the pond area, the flame spreads from the vicinity of the heater to the surrounding area. When the unburned gas spreads into the combustion chamber space, a portion of the unburned gas is discharged to the outside of the machine as it is, making it difficult to obtain the desired effect.

The present invention has been designed to eliminate these points, and one embodiment of the present invention will be described below using an example in which the present invention is used in a hot air fan equipped with a fan.

In the figure, 1 is a fuel tank, and the fuel in the tank or the cylindrical wick 3 sucks up the fuel by capillary action. This lamp wick 3 is connected to a lever 4 of a wick up/down mechanism, and is normally 1! Inside the core is set up as a guide on the end fuel tank 1.

It is located between the outer cylinders 9 and 10 and is biased so as to protrude into the combustion chamber 6 only during combustion. A solenoid 7 holds the lever 4 in a state in which the lamp wick 3 is pushed upward simultaneously with the ignition operation. Also, at this time, at the same time as the first ignition operation, the ignition heater 8 is energized to ignite the fuel 2 drawn up into the lamp wick 3 and start combustion. Reference numeral 9 denotes the cylindrical core inner tube that is erected so as to penetrate inside the tank 1, and 1o denotes an outer core tube provided on the outer periphery of the cylindrical inner core tube 9, and the outer core tube 1o and the inner core tube 9 holds (guides) the lamp wick 3 in a vertically movable manner. 1
1,12Fi is a large plate part integrally formed at the upper end of the core inner/outer cylinder 9, 1o, and the large plate part 12 provided in the core outer cylinder 1o has a large number of ventilation holes 13 in its rising wall. Reference numeral 14 indicates a plurality of pores 141 placed on the inner and outer large plate portions 11°12.
A burner 14 having a triple cylinder configuration having L, 16 is this burner 14.
A cylindrical combustion chamber tube forms a combustion chamber 16 above the combustion chamber tube, and 17 is a fan disposed on the combustion chamber tube 15 via a disc-shaped plate 18. The air from this fan 17 is Ejector when passing between the outer periphery of the plate body 18 and the wind barrel 19
Depending on the effect, combustion gas is sucked and exhausted as shown by the dashed arrow.
It mixes with this combustion gas and blows out as warm air.

Also, to explain the circuit in FIG. 4, when lever 4 is pushed down, switch 21 is turned on and solenoid 7. fan 1
79 Ignition heater 8. Each of the timers 22 is energized and combustion is started. Here, when the ignition heater 8 reaches a certain time, the relay 23 is opened by the timer 22, so that the current supply to the ignition heater 8 is stopped. 241d A thermostat that detects the ambient temperature, which is normally open when it is cooled and closes when it burns and the ambient temperature rises.

Next, the operation of the above configuration will be explained. First, when the lever 4 is pushed down, the lamp wick 316 is pushed upwards into the flame part 11°12 and protrudes into the combustion chamber 6, and at the same time, the switch 21
closes solenoid 7, large point heater 8. Fan 17. The timers 22 are energized, and the lamp wick 3 is held as it is by the attraction effect of the solenoid 7. When the time for ignition heater 8 is reached, a relay 23 is opened by a timer 22 to stop the energization, but during the energization time, the fuel 2 sucked up from the tank 1 contained in the lamp wick 3 is ignited to start combustion. At the same time, the fan 17 rotates, and the air blows into the air guide 19.
' is blown out downward 1, mixed with combustion gas, and blown out from the blow-off port 2o. Further, the above-mentioned combustion takes place in the pores 14 of the burner 14, and the pores 14! The vaporization of the fuel 2 continues due to the heat from the flame formed in L, and combustion continues with a constant amount of vaporization maintained. Also, at this time, the ambient temperature of the thermostat 24 increases and closes the contact.

If you operate the fire extinguisher in such a state, the switch 21 will change, and the solenoid 7 will be de-energized instantly.The lever 4 will rise and the lamp wick 3 will come down, and at the same time the thermostat 24 contacts will close, so the fan 17 and ignition heater will continue to operate. 8. Timer 22. The solenoids 7 are energized. At this point, the solenoid 7 is energized, but since the lever 4 remains up, the solenoid 7 cannot attract it, and the lamp wick 3 remains down. Also, if this state is maintained for a certain period of time, thermostat 2
4 is cooled and its contacts open, fan 7° ignition heater 8
．． Timer 22. The energization of each solenoid 7 is stopped.

Immediately after this extinguishing, a large amount of unburned gas remains in the combustion chamber 6, but when the extinguishing operation is performed and the wick 3 is lowered, the fan 17 is also energized along with the ignition heater 8, and the power is kept energized for at least 30 seconds, for example. Therefore, even after the fire is extinguished, the atmosphere in the combustion chamber 6 becomes negative pressure due to the ejector effect caused by the air flow from the fan 17, and the pores 1 in the large outer recess 12
Air flows into the combustion chamber e through the pores 141L of the combustion chamber 3 and the burner 14. As a result, the entire area of the ring-shaped combustion chamber 6 quickly becomes a flammable range, and the flame formed by the ignition of the ignition heater 8 spreads all at once to the entire area of the combustion chamber 6, and the remaining unburned gas is burned out.

In the above embodiment, the hot air fan installed above the wick type burner via a plate is energized even after the fire is extinguished, and the resulting ejector effect makes the pressure in the combustion chamber negative and supplies air to the combustion chamber. As explained in , the fan may be placed below or on the side, as long as a large amount of air is supplied to the combustion chamber of the percussion type burner after the fire is extinguished, and the preferred method may be selected. .

As described above, according to the present invention, it is possible to significantly reduce the generation of hydrocarbon compounds and odors when extinguishing a fire, and it is possible to use the equipment with peace of mind without causing discomfort to the user or impairing health. It can be used, etc., and the effect is that of a dog.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of a wick-type hot air heating stove according to an embodiment of the present invention, and FIGS. 2 and 3 are enlarged cross-sectional views of the same essential parts.
FIG. 4 is the same circuit diagram. 1...-tank, 3...light wick, 8...
...Ignition heater, 9... Core inner cylinder, (guide body)
, 1o...core outer cylinder (guide body), 11.12...
...Fire pan section, 17...Fan. Name of agent: Patent attorney Akio Nakao and one other iR
Figure 1 Figure 2 Figure 3 Figure 4 Figure 7 /7 d

Claims (2)

[Claims] (1) A vertically movable lamp wick that sucks up fuel from the tank, a wick chamber interior that guides the vertical movement of the lamp wick, and this guide, which is placed on the 1 m L end of the interior body, -・ζ -, the ignition lamp that ignites the lamp wick, and the combustion υ1 from the burner.
N1, which is equipped with a suction means for sucking and exhausting gas, and in which part of the ignition mentioned above and the suction means are opened for a certain period of time after extinguishing the ignition;
1-! Light wick type % type % with 1 path (2) The suction F stage t consists of a partition plate installed in the exhaust gas path above the burner b, and a warm air blower installed on the opposite side of the above-mentioned /q-space of this chemical conversion plate, The wick-type oil combustion apparatus according to claim 1, wherein the combustion exhaust gas from the burner section is sucked and exhausted by an ejector effect caused by air blown from the blower.