JPS61147018A - Forced-feed type kerosene stove - Google Patents

Abstract

PURPOSE:To be able to put the fire out at once by return back of kerosene in a vaporizer to a kerosene tank promptly by installing a feed fuel reversing device which is linked to the signal of a vibration detector that detects vibration or upset of a stove and changes the flowing direction of feed fuel from a pump at combustion time. CONSTITUTION:In case of vibration due to big earthquake or upset of a stove, the signal of a vibration detector 10 comes into controller 13 which drives promptly the feed fuel reversing device and the inlet and outlet of the pump is switched over. As the flowing direction of the feed pump is reversed, kerosene is returned back from feed pipe 8 to pipe 25 and kerosene in the groove 17 of the vaporizer and pipe 8 is almost all returned back to kerosene tank 1. As a result, only a small amount of kerosene in the vaporizer is burnt out and the fire is put off at once.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a kerosene stove that heats a living space by burning kerosene.

Conventional technology A conventional kerosene stove uses kerosene as shown in Figure 7.
The kerosene surface 2 inside is brought into contact with a wick 3 made of FIC cotton or glass fiber woven fabric, and the kerosene that rises due to the liquid suction action of this wick 3 is vaporized and burned by the heat of the combustion tube 4. Therefore, to stop combustion, lower the lever 5 that is integrated with the lamp wick 3 to remove the lamp 3 from the combustion tube 4.
At the same time, keep the kerosene away from the kerosene and minimize the vaporization of the kerosene.
This was achieved by stopping the air supply to the

Problems to be Solved by the Invention However, in the above configuration, the lamp wick 3 is not connected to the lever 6.
Even if the temperature is lowered, the vaporization of kerosene does not stop immediately due to the surrounding heat capacity, and the combustion tube is also heated, so the vaporized gas comes into contact with the combustion tube, heats it up, and causes a foul odor. This is considered to be the biggest drawback of kerosene stoves. The present invention solves such conventional problems, and aims to prevent a kerosene stove from producing a bad odor even when it is extinguished.

Furthermore, the purpose is to provide a means for emergency fire extinguishing in addition to normal fire extinguishing in the event of an earthquake 9 kerosene stove overturning accident.

Means for Solving the Problems 1 In order to solve the problems, the forced refueling kerosene stove of the present invention includes a refueling pump that sucks up kerosene from a kerosene tank and sends it to a vaporizing element, and a pump that sucks up kerosene from a kerosene tank and sends it to a vaporizing element. a combustion cylinder that mixes air by natural convection for combustion; a vibration detector that detects vibration or overturning of the kerosene stove; It is equipped with an oil feed reversing device that reverses the rotation.

Function: With the above-described configuration, the present invention allows the amount of kerosene contained in the vaporization element to be extremely small because the kerosene is fed to the vaporization element by a fuel pump, and also when an abnormality such as an earthquake or a fall accident occurs. The oil feed reversing device operates in conjunction with the vibration detector, and by reversing the oil feed direction of the fuel pump from the combustion direction, most of the kerosene in the vaporizing element is immediately returned to the kerosene tank, so it is instantaneous. Can extinguish fires and increase safety.

Furthermore, when extinguishing a fire, unlike the wick type, a large amount of vaporized gas is emitted for a long period of time and no odor is emitted. In other words, the kerosene in the vaporizing element burns out in a short period of time, extinguishing the fire, and there is no vaporization of the kerosene after the fire is extinguished.Therefore, comfortable heating can be obtained without causing any bad odor.

Embodiments Hereinafter, embodiments of the present invention will be described based on the accompanying drawings. In FIG. 1, a kerosene tank 1 is supplied with kerosene through a cartridge tank 6, so that a constant oil level is formed. This is typically a well-known technique widely used in kerosene stoves. Further, the kerosene tank 1 is provided with a fuel pump having a suction port below the surface of the kerosene, and is connected to the kerosene tank 1 so as to send the kerosene to the combustion section 9 through an oil feed pipe 8. Furthermore, a vibration detector 10 for detecting earthquakes and overturning of the stove is fixedly installed on the stove body 11.
A signal line 12 of 0 is connected to a controller 13 . The controller 13 is also connected to the oil feed pump 7 and an oil feed reversing device 14 that reverses the oil feed direction of the oil feed pump 7. In FIG. 2, a vaporizing element 16 made of porous material such as foamed metal or ceramic and having pores is mounted on the upper surface of the combustion section 9.
is embedded, with the tip 16 facing into the combustion tube 4. Further, the oil supply pipe 8 is connected to an annular oil supply groove 17 provided in the vaporizing element 16.

In other words, all the kerosene from the oil pipe 8 is transferred to the vaporizing element 16.
It is sent out from the pores of the body. A combustion tube 4 supported by a punching metal 18 is mounted on the combustion section 9.

Combustion air is supplied from spaces 19 and 20. The igniter 21 is installed near the tip 16, and the temperature sensor 2
2 can detect the temperature at a fixed position near the combustion tube 4,
It is installed and fixed near the punching metal 18 to receive and absorb thermal radiation. The return vibe 23 is provided on the lower surface of the vaporizing element 16, and is arranged to return the kerosene discharged from the lower surface of the vaporizing element 16 to the kerosene tank 1. FIG. This is an embodiment of the oil reversing device 14, and includes a suction port 26. A check valve unit 28 is provided with a discharge port 2, and a check valve 29 is provided on the suction port 26 side of the check valve unit 28.
and a spring 30, and a check valve 31 and a spring 32 are provided on the discharge port 27 side, respectively. Check valve 29°3
1 are communicated with each other through a pump chamber 33. The pump chamber 33
A bimorph element 34 is sealed and fixed to the pump body 24 at its outer periphery with a sealing material 36 . In addition, the three communicating eyes of the check valve unit 28 are each connected to an O ring 3.
It is sealed with 6, 37 and 38. Furthermore, the check valve unit 28Fi has a structure that can be rotated by 180 degrees by a small motor 36 and a gear unit 37, and the check valve unit 28 rotates 180 degrees during normal fire extinguishing and during emergency fire extinguishing such as earthquakes and fall accidents. The configuration is as shown in FIG. In other words, the check valve unit 28, the small motor 36, and the gear unit 37 constitute the oil feed reversing device 14. The oil supply pump 7 is composed of a pump body 24, a reverse valve unit 28, a bimorph element 34, and the like.

- The alternating current voltage that causes the Kuimorph element 34 to make a bending motion is generated according to the principle shown in the block diagram of FIG. battery 42
The voltage is increased to a predetermined value by a booster circuit 43 and then
After the signal is converted into an AC voltage signal, it is adjusted by a voltage amplifier 45 to obtain a desired voltage value. The voltage value to be adjusted is commanded by the amplification factor regulator 46. Temperature sensor 2
The signal 47 from 2 is given to the amplification rate regulator 46, and the voltage applied to the bimorph element 34 is adjusted according to the temperature of the combustion tube 4.

FIG. 6 shows an embodiment of the vibration detector 1o, in which an aluminum container 48 is filled with about 60% mercury, and one terminal 49 from the aluminum container 48 and the tip of the vibration detector 1o are slightly penetrated into the normal mercury 60. The hermetic seal terminal 61 of the resin case 62
going outside. The lower end of the aluminum container 48 is formed into a small spherical shape, and is swingably supported by a fixed pedestal 66 having a three-cut earth receiving part 64 that wraps around the spherical part 53 from the outside. The structure is such that the portion 64 can be tightened and fixed from the outside. At the top of the resin case 62,
A generally widely used so-called spirit level 58 that adjusts the level by aligning the air bubble 67 with the center is the aluminum container 48. Mercury 49 is fixed parallel to the vibration sensing part 69 consisting of one terminal 50, 51, etc. In other words, by loosening the fixing member 56 of the swing support part 60 consisting of the spherical part 63 and the ball receiving part 64, and tightening the fixing member 66 while keeping the level 58 horizontal, the vibration sensing part 59 can be made horizontal. This is a configuration that can be secured.

The operation will be explained based on the above configuration.

When the battery 42 is turned on, the fuel pump 7 operates and kerosene is sent to the vaporizing element 16. Kerosene is deposited on the tip 16 through the pores of the vaporizing element 16, and is vaporized and ignited by the igniter 21. When combustion begins, combustion air is sucked in by natural draft from the spaces 19 and 20 and is combusted within the combustion tube 4. The reason why the battery 42 is turned on and kerosene is sent to the oil supply pump 7, which is composed of the bimorph element 34, the check valve unit 28, etc., is that by applying an alternating current voltage to the bimorph element 34,
This is because the volume of the pump chamber 33 is increased or decreased by the bending motion of the bimorph element 36, and this volume change is rectified by the check valves 29, 31 to perform the pumping action.

If the next big earthquake or kerosene stove falls over,
The signal from the vibration detector 10 enters the controller 13;
immediately drives the oil feed reversing device 41, and the inlet and outlet of the oil supply pump 7 are switched. Then, the oil feeding direction of the fuel pump 7 is reversed, and the kerosene is sent back from the oil feed pipe 8 to the fuel feed vibe 26, so that the kerosene in the oil feed groove 17 of the vaporizing element 16 and the oil feed pipe 8 are Almost all of the kerosene inside is returned to the kerosene tank 1, and as a result, only a very small amount of kerosene contained in the vaporizing element 16 burns out in a very short time and extinguishes the fire. Therefore, even if the wick 3 goes down like in a conventional wick type stove, vaporized gas will continue to be generated from the wick 3 due to the residual heat capacity for a long time, and it will continue to burn fuzzy for about 10 seconds, and even after the fire is extinguished, vaporized gas will continue to be generated for a long time. Compared to those that emit a large amount of bad odor, the kerosene in the combustion section 9 is returned to the kerosene tank 1 in a very short time, and the small amount of kerosene in the vaporizer 16 is combusted, regardless of whether it is an emergency fire extinguishment or a normal fire extinguishment. Since the fire is completely extinguished, the fire can be extinguished instantly, and the generation of vaporized gas after the fire is almost eliminated, resulting in a dramatic elimination of the odor after the fire is extinguished.

Since the fuel pump 7 is comprised of a bimorph element and a check valve unit, the power consumption is extremely low, and the electric capacity of a battery can be used for a sufficiently long time, which has the advantage of ensuring the portability of the kerosene stove.

In addition, the oil feed reversing device 14 is configured to reverse the check valve unit 28 by 180 degrees using a small motor 39 and a gear unit 4o.
Since the small motor 39 is only operated when the fire is turned on or extinguished,
You only need to replace the battery once at the beginning of the season.

Since the vibration detector 101d is composed of a vibration sensing part 59, a swinging support part 60, a fixing member 56, and a level 58, even when the stove is used in a somewhat inclined place, the swinging support part 6
Since the seismic part 59 can be easily and accurately leveled and fixed using the level gauge 68 by loosening the fixing member 5e of 0, it is possible to accurately extinguish an emergency fire in the event of an earthquake or abnormal vibration.

Effects of the Invention As described above, the forced lubrication type kerosene stove of the present invention provides the following effects.

(1) It has a refueling pump that sends oil to the vaporizing element, a combustion tube that burns the kerosene vaporized from the vaporizing element, and a vibration detector, and the oil feeding direction of the refueling pump is determined in conjunction with the signal from the vibration detector. It consists of an oil feed reversing device that reverses the combustion process, so in the event of an emergency fire extinguishment such as an earthquake or fall accident, almost all of the kerosene except for a small amount of kerosene impregnated in the vaporizing element is returned to the kerosene tank, and the vaporizing element is A small amount of kerosene burns out and extinguishes the fire in a short period of time, and has the effect of completely extinguishing the fire in a short period of time.

(2) For the same reason as (1), there is no kerosene to vaporize after an emergency fire extinguishment, so there is no bad odor. (3) Kerosene is forcibly fed to the vaporization element by a fuel pump, so the vaporization element is It doesn't have to be as big as a traditional lamp wick,
Since it is sufficient to have the surface area and volume necessary for vaporization and combustion, the combustion section can be made more compact since it is extremely small compared to conventional methods.

Also, by making the combustion part smaller, the extinguishing time is also shortened.

(4) In conventional wick type stoves, even after the wick is lowered when extinguishing, unburned gas is generated from the wick for a long time due to the residual heat capacity of the combustion tube. After a while, tar is generated near the wick, and when used for a long time, the tar may make it difficult to move the wick up and down smoothly.This means that when an emergency fire is to be extinguished, the wick will not go all the way down, which could lead to serious injury. Whereas there is
In the forced refueling stove of the present invention, the vaporizing element remains fixed and there is no need to raise or lower it, and each time the fire is extinguished, all the kerosene impregnated in the vaporizing element is completely burned out, resulting in a so-called dry firing effect. The vaporizing element can always be kept in a clean state, which has the unique effect of allowing stable and safe combustion over a long period of time.

[Brief explanation of the drawing]

Fig. 1 is a front view of a forced refueling oil stove according to an embodiment of the present invention, Fig. 2 is a partial sectional view of the combustion section and combustion tube, and Figs. 3 and 4 are the refueling pump and oil supply, respectively. FIG. 6 is a partial cross-sectional view of the reversing device, FIG. 6 is a block diagram of the AC voltage generation supplied to the bimorph pump, FIG. 6 is a partial cross-sectional view of the vibration detector, and FIG. 7 is a partial cross-sectional view of the combustion section of a conventional kerosene stove. It is. 1... Kerosene tank, 4... Combustion cylinder, 7
......Oil supply pump, 1o...Vibration detector, 14...Oil feed reversal device, 16...Vaporization element, 28...Reverse Stop valve unit, 34...
... Bimorph element, 66 ... Fixing member, 6
8...Level, 69...Shock sensing part, 60
... Swing support part. 11th! l
／・・・Mechoshi Yu 2shi 24...-Rinse; Boguo, 15-°ki 41 y...Door Imolua Yonago No. 4 Fig. 5 Fig. 6 Fig. 56...W fixed material

Claims (3)

[Claims] (1) A fuel pump that sucks up kerosene from the kerosene tank and sends it to the vaporizer, a combustion cylinder that mixes air with the vaporized kerosene from the vaporizer and burns it by natural convection, and a vibration that detects vibrations or falls of the kerosene stove. A forced refueling kerosene stove comprising a detector and an oil feed reversing device that reverses the oil feeding direction of the oil pump from the combustion direction in conjunction with a signal from the vibration detector. (2) The forced lubrication oil stove according to claim 1, wherein the lubrication pump is comprised of a bimorph element and a check valve unit. (3) The forced lubrication type kerosene stove according to claim 1, wherein the vibration detector comprises a vibration sensing part, a spirit level, a swing support part, and a fixing member.