JPS6337292B2 - - Google Patents

Description

[Detailed description of the invention] Industrial applications The present invention relates to a combustion device.

Conventional configuration and its problems Conventional combustion equipment has a conventional combustion system that normally drives the ignition device to burn unburned gas and reduce odor when extinguishing a fire, and when it falls and extinguishes the fire, the ignition device is stopped and the fire is extinguished. Some people try to shorten the time, but if the heat capacity of the combustion part increases due to increasing the amount of combustion, the combustion part does not cool down even after the fire is extinguished, and the fuel continues to vaporize, causing the fire to go out. There was a problem that the time did not meet the JIS standard.

Purpose of the Invention The present invention eliminates these conventional drawbacks, shortens the extinguishing time, and improves safety.

Structure of the Invention In order to achieve the above object, the present invention operates an ignition device and a blower for a certain period of time during normal fire extinguishing, and stops the operation of the ignition device and operates only the blower for a certain period of time when extinguishing a fall. It is.

DESCRIPTION OF EMBODIMENTS One embodiment of the present invention will be described below regarding a wick-type liquid combustion device used in a hot-air heater.

In Figure 1, 1 is a fuel tank; tank 1
The fuel 2 inside is sucked up by the capillary action of the cylindrical wick 3. The above lamp wick 3 is the lever 4 of the wick up and down mechanism.
It is connected to the right side of the fulcrum, and the upper part of the lamp wick 3 is normally biased to be located within the fuel tank 1 by the action of a spring 5 on the left side of the fulcrum. Reference numeral 6 denotes a solenoid that holds the left side of the fulcrum of the lever 4 in a state in which the lamp wick 3 is pushed upward at the same time as the ignition operation, and 7 is a vent cylinder having a vent hole 8, which serves as a guide for the vertical sliding of the lamp wick 3. 9 is an outer fire pan having a large number of pores 10;
Reference numeral 1 denotes an inner flame cylinder, which has a large number of primary air supply holes 12. 13 is an outer flame tube having a large number of secondary air supply holes 14, 15 is an outer tube, 16 is a combustion tube, 17 is a blower fan, and 17a is a blower motor. 18 is a disk-shaped wind partition plate having a ventilation hole 19; 20 is a blower guide; 21 is a stand; 22 is an exterior case mounted on the stand 21 so as to cover the combustion section and the blower fan 17; A suction port 23 is provided nearby, and a blowout port 24 is provided at a portion of the blower guide 20 facing the opening. Reference numeral 25 indicates an ignition heater used as an example of an ignition device, 26 a temperature switch that opens when the temperature is low and closes when the temperature of the combustion section rises, and 27 an anti-seismic automatic fire extinguishing device.

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

30 is a power transformer, 31 is a diode bridge for full-wave rectification, 32 is a smoothing capacitor, 3
3 is a Zener diode for a stabilized power supply; 34 is a timer comparator having an output that is switched depending on the charging time of the charging capacitor 35; 36 is a transistor driven by the comparator 34;
A relay 37 is driven by the transistor 36 and has a switching contact 37a. The common contact D of this switching contact 37a is connected to the ignition heater 25, the normally closed contact H is connected to the normally closed contact B of the operation switch 29 via the temperature switch 26, and the normally open contact is connected to the operation switch 29. It is connected to the normally open contact C of No. 29.

27a indicates a switching contact of the anti-seismic automatic fire extinguishing system 27, whose normally closed contact 1 is connected to one side a of the power supply,
The normally open contact is connected to the cathode side of the Zener diode 33 for the stabilized power supply, and the common contact is connected to circuits such as the ignition heater 25 and the power transformer 30. 38 is a transistor for driving the solenoid 6, the base of which is connected to a stabilized power supply via a resistor. 39 is the power transformer 30
It is a relay that is driven at the same time when the switch is energized, and has a switching contact 39a, the normally open contact of which is connected to the normally open contact of the operating switch, and the normally closed contact is connected to the temperature switch 26. , the common contact N is connected to the normally open contact of the switching contact 37a of the relay 37 and to the blower motor 17a, and the other end of the blower motor 17a is connected to one side a of the power source.

Next, the operation of the above configuration will be explained. First, the power plug 28 is connected to a power outlet, and then when the left end of the fulcrum of the lever 4 is pushed down, the movement switch 29 is switched from E-ro to I-H, and the power transformer 30 is energized. Therefore, a voltage is generated in the low voltage circuit, and the capacitor 35 starts to be charged. However, since the electric charge is not sufficiently charged at the beginning, the potential connected to the input of the comparator 34 is lower than the input. The output is
becomes Hi, transistor 36 turns on, and relay 3
7 is energized, and the switching contact 37a changes from knee to knee.
Switch to F. Therefore, the ignition heater 25 is energized via the contact knee. At this time, since the upper part of the lamp wick 3 is pushed out above the outer fire pan 9 by the lever 4, the lamp wick 3 is ignited and combustion begins.

Since the solenoid 6 is also energized, the lever 4 is held in a depressed state due to its adsorption action, and combustion continues. At the same time, relay 39
In order to turn ON, the switching contact 39a is switched from NO to NO, the blower motor 17a is also energized, the blower fan 17 rotates, and the air is blown downward along the blower guide 20. At this time, the combustion exhaust gas is sucked in as shown by the broken line in FIG. 1 due to the vent Ury effect of the blown wind, mixes with the wind from the blower fan 17, and is blown out from the blower outlet 24 as a temperature. Combustion air is forcibly sucked and supplied from the vent 8 of the ventilation cylinder 7 due to the Ventilé effect.

Then, the capacitor 35 is sufficiently charged,
When the potential of the input of the comparator 34 becomes higher than the potential of the input, the output of the comparator 34 becomes
It changes from Hi to Lo, and the transistor 36 turns OFF.
The relay 37 is also turned off, the switching contact 37a is switched from knee to knee, the energization to the ignition heater 25 is stopped, and the ignition state shifts to combustion.

The temperature switch 26 is closed due to the rise in temperature of the combustion section.

Next, when extinguishing the fire, release the lever 4 and lower the wick 3 to extinguish the fire. At this time, the operation switch 29 switches from I-H to E-L, so the ignition heater 25 is energized through the closed temperature switch 26 and the contact N-H of the switching contact 37a of the relay 37. Since the relay 39 is also turned off, the switching contact 39a is switched from null to null, so the blower motor 17a is also energized via the temperature switch 26 and the contact null of the switching contact 39a of the relay 39, and when the fire is extinguished, The generated end combustion gas is combusted.
Then, the temperature of the combustion part decreases and the temperature switch 26
When the ignition heater 25 and the blower motor 17a are opened, the energization to the ignition heater 25 and the blower motor 17a is stopped.

On the other hand, when the anti-seismic automatic fire extinguishing device 27 is activated and the contact 27a switches from torch to torch when extinguishing a fall, the stabilized power supply becomes Lo potential, so the transistor 38 is turned off and the solenoid 6 is no longer energized. It is completely stopped, the lever 4 is released and the wick 3 is released.
lowers and extinguishes the fire, but at this time, the contact 27a is switched to the tory, so unlike the normal extinguishing time, even if the temperature switch 26 is closed, the ignition heater 25
The blower motor 17a is not energized, and only the blower motor 17a is energized. Then, when the temperature switch 26 is opened, the supply of electricity to the blower motor 17a is stopped, as in the case of normal fire extinguishing.

Effects of the Invention In the present invention, when a fire is extinguished by a fall, the wind speed motor can be driven to blow out small flames in the combustion section, and a great effect on safety can be expected. Furthermore, since both the ignition heater and the blower motor are driven even during normal fire extinguishing, the temperature at the top of the main body does not rise significantly, and it is also possible to reduce extinguishing odor, which can be expected to have great effects.

[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 electric circuit diagram thereof. 3... Light wick, 4... Lever, 6... Solenoid, 17a... Air blower motor, 25... Ignition heater (igniter), 26... Temperature switch, 27... Anti-shock automatic fire extinguishing device, 27a... Switching Switch, 28
...Power plug, 29...Operation switch, 30...
...Power transformer, 37...Relay, 37a...Relay switching contact, 39...Relay, 39a...Relay switching contact.

Claims (1)

[Claims] 1.Equipped with a combustion section, a blower that sends combustion air to the combustion section, and an ignition device for the combustion section, the ignition device and the blower are operated for a certain period of time when the combustion section is normally extinguished, and when extinguished in the event of a fall. A combustion device that shuts down the ignition system and only operates the blower for a certain period of time.