JPH07174307A - Wick type petroleum burner - Google Patents

Abstract

PURPOSE:To satisfy both an improvement in a suction force and a decrease in noise in a wick type petroleum burner having an odor absorbing unit. CONSTITUTION:This wick type petroleum burner comprises a structure in which a fan 21 of an odor absorbing unit 16 is installed to protrude toward inside a tank 11 to communicate with the tank 11, an upper part of the fan 21 is covered with a plate 19 having the fan 21 and the fan 21 is sunk from an upper surface of a tank wall, an exhaust opening 23 is provided, in place, the plate 19 to externally discharge petroleum vapor sucked from the tank 11. Accordingly, since the fan 21 of the unit 16 does not narrow a space in an upper part of the tank 11, even if the tank 11 is reduced in size, the fan 21 can be formed in a present state or slightly larger than the present state, and its suction force can be improved without considerably increasing number of revolutions of the fan 21, i.e., while decreasing noise.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wick type oil combustor such as an oil stove.

[0002]

2. Description of the Related Art Generally, in a wick type oil combustor, when a wick is lowered to extinguish a fire, petroleum vapor which continues to vaporize from the wick enters a high temperature combustion cylinder and is thermally decomposed to generate a strong odor. was there.

Therefore, recently, in order to reduce the odor at the time of extinguishing the fire, it has been proposed to operate an odor absorbing device such as a fan at the same time as the fire is extinguished so that petroleum vapor that continues to be vaporized from the wick is sucked into the tank and then released to the outside. ing. FIG. 3 shows a wick type oil combustor having such a device. When the wick 1 is lowered to extinguish the fire, the fan 3 of the odor absorbing device 2 starts to rotate, and the petroleum vapor that continues to vaporize from the upper part of the wick 1 is tanked as shown by an arrow. 4 is sucked in and discharged from the discharge port 5 to the outside.

According to the wick type petroleum combustor with an odor absorbing device, the petroleum vapor which continues to be generated after extinguishing is released into the atmosphere through the tank 4 without flowing into the high temperature combustion cylinder 6, so that the petroleum vapor is generated. Exciting odor caused by thermal decomposition is eliminated, and odor can be significantly reduced.

[0005]

However, when such an odor absorbing device 2 is provided, there arises a problem that the rotating sound of the fan 3 and the motor leaks out of the device during the odor absorbing operation to generate noise. In particular, the odor absorbing device 2 needs to overcome the draft generated by the high temperature combustion cylinder 6 to absorb the petroleum vapor generated during fire extinguishing, so that it is necessary to increase the suction force as much as possible, and to increase the suction force, the number of revolutions can be increased. There was a problem that the noise was increased as it was raised.

On the other hand, the recent wick type oil combustor has been downsized, and the tank 4 is naturally downsized. Further, a core up / down mechanism for moving the wick up and down, a refueling detection mechanism for informing the necessity of oil supply, and the like have come to be provided in the upper part of the miniaturized tank 4, and the upper space of the tank 4 is reduced. And the odor absorber 2 provided at the top of the tank
Also, miniaturization has been demanded. However, when the odor absorber 2 is downsized, the suction force is inevitably reduced, and if the rotation speed of the fan 3 is increased to compensate for it, the noise becomes high as described above, and the suction force is maintained or improved. Reducing noise was becoming a major issue. In other words, there is a case where it is inevitable to downsize the odor absorbing device 2 due to the downsizing of the tank 4, and it is extremely difficult to secure the suction force by increasing the size of the odor absorbing device 2 to a level equal to or larger than the current level. Therefore, reducing the noise generated from the odor absorbing device 2 while maintaining and improving the suction force of the odor absorbing device 2 has been a major issue. In particular, in recent years, the tank 4 has been downsized as in the recent wick type oil combustor, and the height of the combustion cylinder 6 has become high, resulting in a strong draft at the time of extinguishing a fire.

[0007] The present invention has solved such a problem, and an object of the present invention is to make it possible to satisfy both the improvement of the suction force and the reduction of noise.

[0008]

In order to achieve the above object, the present invention provides a tank having a vertically movable wick, and an odor absorbing device for sucking petroleum vapor from the upper portion of the wick through a space in the tank. The odor absorbing device includes a motor, a fan driven by the motor to suck the oil vapor from the tank, and a plate body that is located between the fan and the motor and integrates them. Further, the odor absorbing device has a shape in which the fan is installed so as to project toward the inside of the tank so as to communicate with the inside of the tank, and the plate body covers the upper part of the fan so that the fan sinks from the upper surface of the tank wall. Moreover, an opening for exhaust is provided at an appropriate position of the plate body to discharge the petroleum vapor sucked from the inside of the tank to the outside.

[0009]

According to the present invention, even if the odor absorber is installed in the tank according to the above-mentioned structure, only the motor is located above the tank. The odor absorbing device can be installed in the tank without disturbing the installation of the. That is,
Since the fan of the odor absorber does not narrow the space above the tank, the fan can be the same size as the current one or larger than the current one, even if the tank is downsized.
The suction force can be improved without increasing the rotation speed of the fan, that is, while reducing noise.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In FIGS. 1 and 2, 11 is a tank, 12 and 13 are inner and outer core guide cylinders provided on the upper portion of the tank 11, and 14 is the tank 11 described above. Is a wick whose lower part is immersed in petroleum oil, and its upper part is provided so as to be vertically movable so as to be retractable into and from the combustion cylinder 15 through the space between the core guide cylinders 12 and 13. Reference numeral 16 is an odor absorber attached to the upper surface of the tank 11, and this odor absorber will be described in detail below with reference to FIG.

In FIG. 1, reference numeral 17 denotes a concave portion provided on the upper surface of the tank 11, which is integrally formed by press molding so as to project to the inside of the tank, and a through hole 18 communicating with the inside of the tank 11 is formed on the bottom surface thereof. I am doing it. 19 is the recess 1
A fan 21 that is a main body of the odor absorbing device 16 and a motor 22 that drives the fan 21 are attached to the peripheral stepping portion 17a of the plate 7 via the packing 20. This plate 19
Is provided with an exhaust opening 23 at an appropriate position in its peripheral portion and is formed so as to incline downward toward the center.
A screw is fixed to the upper wall surface of the tank so that the fan 21 is located in the recess 17. The recess 17 of the tank 11 constitutes a fan casing that surrounds the fan 21 together with the plate body 19, and is hereinafter referred to as a casing wall body.

In the above structure, when the wick 14 is lowered to extinguish the fire, the motor 22 starts to rotate, and the rotation is stopped after a predetermined time, for example, 120 seconds. Then, the fan 21 rotates during that time, and the petroleum vapor that continues to vaporize from the upper portion of the wick is sucked through the through hole 18 through the tank 11 as shown by the arrow of the broken line, and from the opening 23 provided in the plate body 19 to the outside of the combustion cylinder. Exhaust will reduce the odor significantly.

Here, the odor absorbing device 16 has its fan 2
1 is located inside a casing wall body 17 formed in the tank 11, and its upper portion is covered with a plate body 19 so that the plate body 19 becomes a part of the upper wall of the tank 11.
The fan 21 of the odor absorber 16 is sunk from the upper surface of the tank 11, and only the motor 22 is located above the tank 11. That is, the fan 21 occupying most of the volume of the odor absorbing device 16 is the tank 11
Tank 1 because it looks like it sank inside
No more occupying the upper area of 1
Even if the tank is miniaturized and the core up-down mechanism and the like are installed, the fan 21 of the odor absorbing device 16 should be made equal to or larger than the current state without disturbing the installation of the core up-down mechanism and the like. Is possible. Therefore, by adopting a large-diameter fan, the suction force can be increased, and the suction force can be maintained or improved even if the rotation speed of the fan 21 is reduced to a level equal to or lower than the current level. The rotation noise generated from the motor 22 can also be low.

Further, the odor absorbing device 16 reduces the space volume in the tank by that amount by sinking the fan 21 from the upper surface of the tank 11 to the inside. Therefore, when the odor absorbing device 16 sucks the petroleum vapor from the upper portion of the wick 14 through the space in the tank 11, the amount of the petroleum vapor sucked by the volume reduced by the fan 21 is reduced, and the suction effect is correspondingly reduced. Is improved. This is more effective as the fan 21 is made larger, and the suction force is also improved. Therefore, it is effective as a wick type oil combustor with an odor absorbing device for sucking oil vapor.

Further, the fan 21 of the odor absorber 16 is sunk inward from the upper surface of the tank 11 so that the petroleum vapor at the corner shown in FIG. It becomes difficult to suck the oil vapor in this part. Therefore, the amount of petroleum vapor sucked from the tank is further reduced accordingly, and the suction effect is improved.

Further, in the product of this embodiment shown in FIG. 1, since the tank wall 17 is provided in the tank 11 so that the fan 21 of the odor absorber 16 is submerged in the tank 11, the casing wall body 17 is formed. The rotation sound from the fan 21 is double-insulated by the wall of the tank 11 and the wall of the tank 11, and there is an advantage that the noise can be further reduced.

The configurations described in the above embodiments are shown as an example of the present invention, and it goes without saying that any configuration may be used as long as the effects of the present invention are achieved. Nor.

[0018]

As described above, the wick type oil combustor of the present invention is a tank having a vertically movable wick, and an odor absorbing device for sucking petroleum vapor from the upper part of the wick through the space in the tank. The odor absorbing device includes a motor, a fan driven by the motor to suck the oil vapor from the tank, and a plate body located between the fan and the motor to integrate them. The above-mentioned odor absorbing device has a shape in which the fan is installed so as to project toward the inside of the tank so as to communicate with the inside of the tank, and the plate body covers the upper part of the fan so that the fan sinks from the upper surface of the tank wall. In addition, since the exhaust opening is provided at an appropriate place on the plate body to discharge the petroleum vapor sucked from the inside of the tank to the outside, the fan of the odor absorbing device can reduce the upper space of the tank. Even if the tank is downsized, the fan can be the same size as the current one or larger than the current one, so it is possible to improve the suction power without increasing the rotation speed of the fan. At the same time, since it is not necessary to increase the rotation speed of the fan to increase the suction force, noise can be reduced.

Further, since the fan of the odor absorbing device is sunk from the upper surface of the tank, the space volume in the tank is reduced accordingly, and in the case where the oil vapor is sucked from the upper part of the wick through the space in the tank, There is also an advantage that the suction effect of petroleum vapor is improved by the volume reduced by the fan.

[Brief description of drawings]

FIG. 1 is an enlarged sectional view of an essential part of a wick type oil combustor according to an embodiment of the present invention.

FIG. 2 is a sectional view showing the entire wick type oil combustor.

FIG. 3 is a sectional view of a conventional wick type oil combustor.

[Explanation of symbols]

 11 Tank 14 Wick 17 Casing Wall (Concave) 16 Odor Absorber 19 Plate 21 Fan 22 Motor 23 Opening

Claims (1)

[Claims] 1. A tank having a vertically movable wick, and an odor absorbing device for sucking petroleum vapor from the upper part of the wick via a space in the tank, the odor absorbing device being a motor.
The fan is driven by the motor to suck the petroleum vapor from the tank, and the plate body is located between the fan and the motor to integrate them. The plate is installed so as to project toward the inside of the tank so as to communicate with the inside, and the fan is sunk from the upper surface of the tank wall by covering the upper part of the fan with the plate, and at the appropriate place of this plate for exhaust. A wick type petroleum combustor which has an opening and discharges the petroleum vapor sucked from the inside of the tank to the outside.