JPH0335985Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an oil combustor equipped with a device for sucking unburned gas during extinguishing a fire.

[Conventional technology]

In a typical oil burner, when a fire is extinguished, a small amount of unburned gas remaining in the wick regulator rises to the combustion section, emitting an odor for a short period of time. In order to eliminate this drawback even to a small extent, in order to prevent the unburned gas vaporized from the combustion wick from flowing into the high-temperature combustion section, unburned gas remaining around the combustion wick is removed from the wick regulator or oil tank using a turbo fan, etc. There are commercially available combustors equipped with a mechanism that sucks in the gas and releases it outside the combustion section.

[The problem that the idea aims to solve]

By the way, in oil combustors, where the combustion wick is lowered into the wick regulator to extinguish the fire, the temperature of the combustion part is extremely high even immediately after the extinguishment, and the oil that continues to vaporize from the combustion wick that has descended into the wick regulator. It is known that when gas flows into a high-temperature combustion zone, it undergoes thermal decomposition and turns into a gas with a strong odor.

For this reason, the mechanism in which the petroleum gas flowing into the combustion section after extinguishing is sucked in by a turbo fan and released outside the combustion section at a low temperature does not cause thermal decomposition of the petroleum gas, and is effective in preventing the generation of bad odors, but it is not completely effective. I couldn't stop the stench.

[Means to solve problems]

This idea solves the above problem by removing the timing between the fan operation and the fire extinguishing mechanism, and aims to reduce odor control during extinguishing. In an oil combustor that is equipped with a suction device 4 that sucks and discharges unburned gas to the outside of the combustion section 3, the timing at which the suction device 4 starts driving and the timing at which the combustion wick 1 descends are not at the same time, and the suction device 4 is activated. A delay mechanism 5 is provided in which the combustion wick 1 is lowered 0.1 to 5 seconds after the start.

[Explanation of action]

When extinguishing an oil combustor in which the combustion wick 1 is in the raised position and normal combustion is occurring in the combustion section 3, the suction device 4 is first activated and the delay mechanism 5 is activated at the same time. When the suction device 4 operates, the unburned gas near the combustion wick 1 during combustion begins to be forcibly discharged to the outside of the combustion section 3, and the delay mechanism 5 uses the suction device 4 to reduce the negative pressure near the combustion wick 1. The point at which it has increased (0.1 to 0.5
seconds later) Lower the combustion wick 1 to extinguish the fire.

Therefore, when the combustion wick 1 descends to extinguish the fire, the petroleum gas vaporized from the combustion wick 1 has already become under negative pressure near the combustion wick 1 due to the suction device 4.
It is immediately sucked and discharged outside the combustion section 3 without flowing into the combustion section 3.

Since the bad odor at the time of extinguishing is caused by unburned gas flowing into the high-temperature combustion section 3, unburned gas no longer flows into the high-temperature combustion section 3 immediately after extinguishing, and the odor control effect is improved. It is.

[Explanation of Examples]

The drawing shows an example of extinguishing a petroleum combustor using an electric circuit, 1 is a combustion wick, 2 is a wick regulator, 3 is a combustion part in which the elevated combustion wick 1 is seen, The combustion wick 1 is housed in a wick adjuster 2 composed of an inner and outer wick cylinder, and when the wick upper and lower shaft 2a is rotated, a return spring (not shown) is wound up, and a gear 6a and a claw 6 are rotated.
The wick is held in the raised position by the fire extinguishing actuator 6 consisting of b.

4 is a suction device composed of a turbo fan attached to the upper surface of the oil tank 7 communicating with the wick regulator 2; 8 is a deodorizing device installed at the discharge part of the suction device 4; ) to enhance the deodorizing effect.

9 is a power source for the oil combustor, 10 is a switch for extinguishing the combustor, and 4a is a timer for the suction device, which closes the circuit for 90 seconds after the fire extinguishing switch 10 is closed, and then opens the circuit.
operates for a certain period of time. 5 is a delay mechanism that is connected in parallel with the suction device 4 and closes after 5 seconds of energization; 5a is a solenoid operated by the delay mechanism 5; 6c is a vibration-sensitive weight that activates the fire extinguishing device operating section 6;
When the contact of the delay mechanism 5 closes 5 seconds after the suction device 4 is activated, the solenoid 5a is energized and the vibration-sensitive weight 6
Forcibly press c. For this reason, the fire extinguisher operating section 6
The gear 6a and the claw 6a are disengaged, and the combustion wick 1 is lowered by the force of a return spring (not shown), automatically extinguishing the fire.

Therefore, when the fire extinguishing switch 10 is operated during combustion in the oil combustor, the suction device 4 is activated immediately, and the combustion wick 1 is lowered after a short delay to extinguish the fire.By the time the combustion wick 1 is lowered, the oil tank 7 and wick adjustment are The pressure in the chamber 2 is negative, and immediately after the fire is extinguished, unburned gas flows into the combustion section 3.
It is something that is reliably sucked and released outside.

Reference numeral 11 denotes a cartridge oil tank that is attached to and detached from the oil tank 7 to supply oil.

[Explanation of the idea]

As described above, in this invention, the operation of the core regulator 2 is delayed compared to the operation of the suction device 4, and the suction device 4 is
If the fire extinguisher was activated and the extinguishing operation was activated at different times, unburnt gas could be sucked in smoothly. In this type of combustor, combustion is performed by the draft of the combustion section 3, so the draft of the combustion section 3 is still strong immediately after the fire is extinguished, so if the wick adjuster 2 and the suction device 4 are operated at the same time, the combustion will be carried out by the suction device 4 side. The tensile force that pulls the unburned gas is lost and the unburned gas is discharged to the combustion section 3.

This invention is effective because the bad odor generated from the combustion section 3 is eliminated by activating the suction device 4 in advance.

[Brief explanation of the drawing]

The drawing is a longitudinal cross-sectional view of the essential parts of an upper-and-lower wick type oil combustor, which is an embodiment of the present invention. 1... Combustor, 2... Core regulator, 3... Combustion section, 4... Suction device, 5... Delay mechanism.

Claims (1)

[Scope of utility model registration request] In an oil combustor equipped with a suction device 4 that sucks and discharges unburned gas remaining in the wick regulator 2 to the outside of the combustion section 3 when the combustion wick 1 is lowered to extinguish the fire, the drive start timing of the suction device 4 and This extinguishing mechanism for an oil combustor is provided with a delay mechanism 5 in which the combustion wick 1 is lowered not at the same time, but after 0.1 to 5 seconds have elapsed after the start of operation of the suction device 4.