JPS6151207B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a control device for a combustor, and particularly aims at reducing the fire extinguishing odor after extinguishing a fire and improving safety during reuse.

Conventional combustors that emit exhaust gas into the room have the disadvantage that they emit a large odor due to the unburned gas produced when extinguishing the fire, and wick-type types in particular have the disadvantage that the wick must be dropped to extinguish the fire. but,
Since the spark remains for a certain period of time, when the wick is set to the combustion position again, it immediately ignites again, causing abnormal combustion. Furthermore, even when there is no spark remaining, if the lamp is reset when the lamp wick is at a high temperature, there is a problem in that unburned gas is abnormally generated from the lamp wick.

The present invention eliminates these conventional drawbacks, and one embodiment of the present invention will be described below with reference to a wick-type liquid fuel combustion apparatus used in a hot air heater.

In FIG. 1, reference numeral 1 denotes a fuel tank, and fuel 2 in the tank is sucked up by a lamp wick 3 by capillary action. The lamp wick 3 is connected to a lever 4 of a wick up-and-down mechanism, and is normally biased to be located within the fuel tank 1 by the action of a spring 5. Reference numeral 6 denotes a solenoid that holds the levers 4 above and below the wick in a state in which the lamp wick 3 is pushed upward simultaneously with the ignition operation, and 7 is a vent cylinder having a vent hole 8, which serves as a guide for vertically sliding the lamp wick 3. Reference numeral 9 denotes an outer fire pan having a large number of air holes 10, and 11 an inner flame tube, which has a large number of primary air supply holes 1.
It has 2. 13 is a large number of primary air supply holes 14
15 is an outer cylinder, 16 is a combustion cylinder, 1
7 is a blower fan, 17a is a blower motor, 18 is a wind partition plate having a vent 19, 20 is a blower guide,
21 is a stand, 22 is the combustion section and blower fan 1
The external case is mounted on the stand 21 so as to cover the air blower 7, and has a suction port 23 near the blower fan 17 and an air outlet 24 in a portion facing the opening of the blower guide 20. 25 is an ignition heater, and 26 is a temperature switch that opens when the temperature is low and closes when the temperature of the combustion section rises.

Figure 2 shows the electrical circuit diagram of this combustion device.
7 is a power plug, 29 is an operation switch that can be switched from E-R to I-H by pressing levers 4 above and below the core, contact C is connected to a circuit such as solenoid 6, and contact R is a temperature switch. The common contact A is connected to the switch 26, and the common contact A is connected to the power supply.

Reference numeral 30 denotes a lamp, which is connected to the normally closed contact RO of the operation switch 29 via the temperature switch 26. 3
1 is a timer comparator having an output that switches according to the elapse of the charging time of the charging capacitor 32;
33 is a transistor driven by the comparator 31, and 34 is a relay driven by the transistor 33 and having a switching contact 34a. The common contact d of this switching contact 34a is the ignition heater 2
The normally closed contact H is connected to the normally closed contact B of the operating switch 29 via the temperature switch 26, and the normally open contact is connected to the operating switch 29.
It is connected to the normally open contact C of No.9.

The operation of the above configuration will be explained below. First, the power plug 27 is connected to a power outlet, and then the levers 4 above and below the wick are pushed down, and the operation switch 29 is switched from E-ro to I-H, and operation is started. Charging of the capacitor 32 is then started, and the output of the comparator 31 becomes Hi at first, the transistor 33 is turned on, the relay 34 is energized, and the switching contact 34a of the relay 34 is switched from knee to knee. Therefore, the ignition heater 25 is energized via the contact knee.

At this time, since the lamp wick 3 is simultaneously pushed above the outer fire pan 9 by the levers 4 above and below the wick, the lamp wick 3 is ignited and combustion begins.

Since the solenoid 6 is also energized, its suction action holds the levers 4 above and below the wick in a depressed state, and combustion continues. At the same time, the blower motor 17a is also energized, and the blower fan 17 rotates.
The wind is blown downward along the blow guide 20. Due to the ventilly effect of the air blown out at this time, the combustion exhaust gas is sucked in as shown by the broken line, mixes with the wind from the blower fan 17, and is blown out from the blower outlet 24 as warm air. As a result, combustion air is forcibly sucked and supplied from the vent 8.

When the capacitor 32 is fully charged, the output of the comparator 31 becomes Lo, the transistor 33 is turned off, the relay 34 is de-energized, the switching contact 34a of the relay 34 is switched from knee to knee, and the ignition heater is turned off. 25 is stopped, and the ignition state shifts to the combustion state. The temperature switch 26 is closed due to the rise in temperature of the combustion section.

Next, when extinguishing the fire, the levers 4 above and below the wick are released, the wick is lowered, and the fire is extinguished. At this time, the operating switch changes from I-H to E-L, so the lamp 30 is energized via the closed temperature switch 26, and the temperature switch 26 and the contact point 34a of the relay 34 are turned on. The ignition heater 25 is also energized via the ignition heater 25 to combust the unburned gas generated during extinguishing the fire, and the lamp 30 indicates that the ignition heater 25 is energized. When the temperature of the combustion section falls and the temperature switch 26 is opened, the energization to the ignition heater 25 and the lamp 30 is stopped.

As described above, according to the present invention, the extinguishing odor can be reduced by energizing the ignition heater at the time of extinguishing, and the energization is indicated by a lamp, and the lamp display is not performed at the time of ignition. If a warning is issued to prohibit reuse during the middle period, it will be possible to prevent abnormal combustion and the generation of unburned gas due to early reuse after the fire has been extinguished, and a great effect on safety and hygiene can be expected.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a combustion device according to an embodiment of the present invention, and FIG. 2 is an electrical circuit diagram thereof. 1... Tank, 3... Light wick, 4... Lever, 6
...Solenoid, 17a...Blower motor, 25...
...Ignition heater, 26...Temperature switch, 29...
Operation switch, 37...Relay, 37a...Relay switching contact.

Claims (1)

[Claims] 1 Normally closed contact of the operation switch that closes when the fire is extinguished,
An alarm means such as a lamp is connected in series to a series circuit consisting of a temperature switch that closes when the temperature of the combustion part rises, and a relay that closes when extinguishing the fire and after ignition is switched in parallel to the alarm means such as the lamp. An ignition device is connected through the normally closed contact of the contact, and the ignition device is connected to the normally open contact of the operation switch through the normally open contact of the relay, and the ignition device is operated for a certain period of time when extinguishing the fire. 1. A control device for a combustor, characterized in that the unburned gas is burned to reduce the odor of extinguishing, and at the same time, only when the extinguishment is extinguished, the energization of the ignition device is indicated by an alarm means such as a lamp for a certain period of time.