JPS6016227A - Kerosene burner - Google Patents

Abstract

PURPOSE:To heighten the safety by a structure wherein a solenoid to mechanically operate a wick lifting mechanism, a control circuit to electrically control the action of said solenoid and a temperature switch for preventing overheating, which connects in series to a relay to control the action of the solenoid, are equipped. CONSTITUTION:When some abnormalities occur on combustion and consequently a temperature switch 15 for preventing overheating, which is arranged above a wick, opens, a relay 13 is deenergized and a change-over contact 12 is changed- over from (a) to (b). Thereupon, the electric charge stored in a capacitor 8 is discharged through a solenoid 1 and accordingly the solenoid 1 operates until the discharge stops. The left end of an iron sheet 2 is pushed counterclockwise for the certain fixed period of time during the discharge by the operating rod 1a of the solenoid 1, resulting in releasing the blocking of rotation of a wick lifting gear 5 by means of the iron sheet 2 so as to allow to turn the wick lifting gear 5 counterclockwise by the weight of a wick itself and the energizing force of a spring in order to instantly lower the wick and to stop the combustion.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an oil combustor having a wick, and aims to improve the safety of the oil combustor.

Oil burners that use a wick are evaporative combustion type, so in order to stop the combustion, it is necessary to lower the wick and suffocate the fire to extinguish it.However, conventional types extinguish the fire by mechanically detecting vibrations. However, no other safety measures were taken, and the safety was low.

In other words, it was not possible to extinguish the fire when the temperature of the equipment rose abnormally, and the present invention eliminates such conventional drawbacks. One embodiment will be described below with reference to the drawings.

In Figure 1, 1 is a solenoid, and 2 is a 1
4 is a spring that pulls the right end of the iron plate 2 in the clockwise rotation direction; 6 is a lamp wick; Force is applied in the direction of left rotation. The structure of the lamp wick, lower wick, etc. is exactly the same as that of the known one.

Figure 2 shows the control circuit, 6 A (1ooV power supply, 7 is a power switch, 8 is an electrolytic capacitor that stores the operating power of solenoid 1, 9 and 10 are a charging resistor and diode for capacitor 8, respectively, and 11 is a switching 13 is a heater for ignition, 14 is a well-known convection blower that generates warm air using the heat obtained above the lamp wick, 15 is a temperature switch for overheating prevention, 16 is a temperature fuse for overheating prevention, and 17 is a temperature switch for preventing overheating. The earthquake automatic fire extinguishing system, 18 is a pilot lamp.

In the above structure, when the lamp upper and lower wheels 5 are rotated clockwise using a knob as is well known, the lamp wick is moved to the combustion position, and at this time, the iron plate 2 engages with the lamp upper and lower wheels 2 to prevent its rotation to the left. Next, when the power switch 7 is turned on, the ignition heater 13 is energized to ignite the wick and start combustion. Also at this time, pilot lamp 18
lights up, and warm air is generated by the convection blower 15. At the same time, relay 11 is also energized, so
The switching contact 12 switches from the opening to the opening, and the capacitor 8 is charged via the diode 10 and the resistor 9. As described above, combustion continues to be maintained as long as electrical current is maintained.

Here, if some abnormality occurs in the combustion and the overheat prevention temperature switch 15 provided above the lamp wick opens, the relay 13 is de-energized and the switching contact 12 switches from A to Open. The charge accumulated in the capacitor 8 is then discharged through the solenoid 1, and the solenoid 1 operates until the discharge is completed. As a result of this operation, the left end of the iron plate 2 is pushed in the counterclockwise direction by the operating rod 1a of the solenoid 1 for a certain period of time during discharge, and the rotation prevention of the lamp wick by the iron plate 2 is released, and the lamp wick upper and lower wheels 5 are rotated. Due to its own weight and the biasing force of the spring, it rotates to the left and the wick drops instantly, stopping combustion.

Further, when the overheating prevention temperature fuse 16 and the anti-seismic automatic fire extinguishing device 17 detect an abnormality and operate, combustion is similarly stopped by the action of the solenoid 1.

Furthermore, normal fire extinguishing can also be performed by opening the power switch 7.

Moreover, FIG. 3 shows another embodiment of the present invention. In the figure, 1' is a solenoid, 2' is a steel plate that rotates around 3', 4' is a spring that pulls the steel plate 2' downward, and 6
' is the wick set lever 15a/ is the wick set lever 5'
7' is a power switch, 19' is a lamp wick, and 20 is a lever that rotates around a fulcrum 21. In the above configuration,
Push down the wick set lever 5', push down the right end of the lever 2o, and raise the wick 19 with the left end, then the iron plate 2
' and the projection 5a/ of the wick set lever 5' are engaged as shown in the figure, and combustion takes place in this state. Next, when the solenoid 1' operates in the same manner as in the above embodiment, the iron plate 2'
is pushed up as shown by the broken line, and the wick set lever is
5' is released and the wick is lowered. Here, the power switch 7' is linked to the vertical movement of the wick setting lever 6', and when the wick is set, as shown by the solid line in Fig. 3,
The power switch contact is closed, and when the wick is lowered, it is opened as shown by the broken line in FIG.

As described above, since the present invention lowers the light by controlling the energization of the solenoid, it is possible to electrically detect various abnormal conditions and automatically extinguish the fire, and its safety is extremely high. Become.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram of an oil combustor according to an embodiment of the present invention, FIG. 2 is a control circuit diagram of the oil burner, and FIG. 3 is a configuration diagram of an oil combustor according to another embodiment of the present invention. It is a diagram. 1.1' Old... Solenoid, 7, 7' Hit - Power switch, 15... Temperature switch for overheating prevention, 1
9'...Lamp wick. Name of agent: Patent attorney Toshio Nakao is Rikishi's first name
Figure 3 “-1

Claims (2)

[Claims] (1) A lamp wick that is biased downward, a wick up-and-down mechanism that moves the wick up and down, a solenoid that mechanically operates the wick up-and-down mechanism, and a control circuit that electrically controls the operation of the solenoid. An oil burner. (2) The oil combustion system according to claim 1, wherein the control circuit has a safety device such as a temperature switch for preventing overheating electrically connected in series with a solenoid or a relay that controls the operation of the solenoid. vessel.