JP2001182939A - Oil burning appliance - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make an improvement in shortening of a quenching time in the sphere of combustion regulation and in reduction of a quenching smell at the same time. SOLUTION: This oil burning appliance is equipped with a tank 1 storing fuel, a wick outer tube 4 and a wick guide tube 2 provided in the tank 1, a wick 8 moving vertically between the wick outer tube 4 and the wick guide tube 2, a guide tube 5 provided in internal communication with the wick outer tube 4 and guiding the vertical movement of the wick 8, and a smell absorbing device 11 provided on the upper side of the tank 1. The guide tube 5 has a prescribed gap to the inner peripheral surface of the wick outer tube 4 and forms an air chamber 3 made to communicate with a wick guide passage 8a through which the wick 8 moves vertically, while a plurality of communication paths 5a are provided on the bottom side and the air chamber 3 is made to open inside the tank 1 and to communicate with the smell absorbing device 11 through these communication paths 5a. Vaporized gas from the wick 8 in quenching is sucked by this constitution. Besides, quenching holes 4d making the air chamber 3 communicate with the external air are provided at prescribed intervals in the outer peripheral surface 4b of the wick outer tube opposite to the air chamber 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to improving the fire extinguishing characteristics of a light-core oil combustor, and more particularly to simultaneously reducing the fire extinguishing time and the fire extinguishing odor.

[0002]

2. Description of the Related Art In general, a wick type oil combustor is provided with a wick that can be moved up and down between a wick outer tube and a wick guide tube, and at the time of ignition, the wick is moved upward to open the tip of the wick to the atmosphere. The required amount of air is secured and mixed with the vaporized gas generated from the tip of the wick to burn, and at the time of fire extinguishing, the combustion air is rapidly reduced by lowering the wick into the gap formed by the core outer cylinder and the core guide cylinder. It reduces and extinguishes fire. However, in such a configuration, it is impossible to completely shut off the combustion air at the time of fire extinguishing, and the vaporized gas generated from the lamp core at the fire extinguishing position is in a gap formed by the core outer cylinder and the core guide cylinder. There is a problem that the combustion is continued by the small amount of air and the fire extinguishing time is prolonged. Therefore, various methods have been devised as a countermeasure.For example, an opening communicating with the outside air is provided in the outer peripheral wall of the core outer cylinder, and when the fire is extinguished, the lamp core is rapidly lowered to below the opening. There is a method of rapidly extinguishing the fire by diluting the vaporized gas generated from the wick to an incombustible state by introducing outside air and increasing the amount of air.Alternatively, there is a core outer tube and a core guide tube outside the light core. There has been known a rapid fire extinguishing structure in which an air chamber communicated with a gap formed by the above is provided, and at the time of fire extinguishing, the mixed gas staying in the air chamber is ignited and explosively burns to blow out the flame at the tip of the light core.

The rapid fire extinguishing structure described above is effective as a fire extinguishing method in an emergency such as an earthquake, but since the fire is extinguished rapidly and forcibly, a large amount of unburned gas is released to the surroundings. And produced a strong odor. Therefore, as a method for solving this problem, a method has been devised which distinguishes between emergency fire extinguishing and normal fire extinguishing, and changes the position of the wick at the time of fire extinguishing. In other words, by using the rapid fire extinguishing structure described above during emergency fire extinguishing, during normal fire extinguishing, the descent position of the wick is set higher than the opening to prevent inflow of air from the opening, and by extinguishing the fire slowly, extinguishing the fire slowly. Try to extinguish fires without odor.

[0004]

However, in the conventional configuration, it is necessary to change the position of the wick at the time of fire extinguishing in order to distinguish between emergency fire extinguishing and normal fire extinguishing. As a result, there is a problem that cost is increased and productivity is lowered, and a problem of generating a strong odor at the time of emergency fire extinguishing is not solved. This emergency fire extinguishing is acceptable if it is an emergency such as an actual earthquake.However, in general, most fire extinguishing systems use an anti-seismic fire extinguishing system. In many cases, emergency fire extinguishing is performed even in a state that is not an emergency. In that case, generating a strong odor is unbearable as a user's emotion. Furthermore, since normal fire extinguishing involves continuing combustion until the generation of vaporized gas due to a decrease in the temperature of the wick, the extinction time greatly fluctuates depending on the state of the wick temperature at the time of extinction, and the extinction time becomes abnormally long. However, there was a problem in safety such as fire extinguishing.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object to reduce the fire extinguishing time and the fire extinguishing odor irrespective of normal fire extinguishing or emergency fire extinguishing.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a tank for storing fuel, a core outer cylinder and a core guide cylinder provided in the tank, and a space between the core outer cylinder and the core guide cylinder. A wick that moves up and down, a guide cylinder provided through the wick outer tube to guide up and down movement of the wick, and an odor absorbing device provided on the tank upper surface, wherein the guide cylinder is an inner peripheral surface of the wick outer cylinder. The air chamber having a predetermined gap with respect to the space in which the wick moves up and down is formed, and a plurality of communication paths are provided on the bottom side, and the air chamber is inserted into the tank through this communication path. An opening that opens and communicates with the absorbing device, sucks vaporized gas from the lamp core at the time of fire extinguishing, and an opening that communicates the air chamber and outside air at predetermined intervals on the outer peripheral surface of the core outer cylinder facing the air chamber. Is provided.

According to the invention, the fire extinguishing is performed by rapid extinguishing by setting the fire extinguishing core height at the time of normal fire extinguishing and the emergency fire extinguishing to be the same by the opening provided on the outer peripheral surface of the core outer cylinder and the air chamber provided in communication with the core guiding passage. The time can be shortened, and the air chamber is opened into the tank by the communication passage provided on the bottom surface of the guide cylinder, and is communicated with the odor absorbing device provided on the top surface of the tank. The air is sucked from the room by the odor absorbing device through the communication passage and diffused into the atmosphere, so that the strong odor at the time of fire extinguishing can be alleviated, and the fire extinguishing time can be shortened regardless of whether it is normal or emergency fire extinguishing. In addition, the fire odor can be improved at the same time.

[0008]

The oil combustor according to the first aspect of the present invention has a tank for storing fuel, a core outer cylinder and a core guide cylinder provided in the tank, and a vertical movement between the core outer cylinder and the core guide cylinder. And a guide cylinder provided through the core outer cylinder to guide the up and down movement of the light core, and an odor absorbing device provided on the tank upper surface, wherein the guide cylinder is provided with respect to the inner peripheral surface of the core outer cylinder. While forming an air chamber having a predetermined gap and communicating with a space in which the wick moves up and down, a plurality of communication paths are provided on the bottom side, and the air chamber is opened into the tank through this communication path to open the air chamber. It is configured to communicate with the absorbing device, to suck the vaporized gas from the lamp core at the time of fire extinguishing, and to provide an opening for communicating the air chamber and the outside air at predetermined intervals on the outer peripheral surface of the core outer cylinder facing the air chamber. It has a configuration.

The opening provided on the outer peripheral surface of the core outer cylinder and the air chamber provided in communication with the core guide passage make it possible to shorten the fire extinguishing time by rapid fire extinguishing with the same fire extinguisher height during normal fire extinguishing and emergency fire extinguishing. By opening the air chamber into the tank through a communication passage provided on the bottom surface of the guide cylinder and communicating with the odor absorbing device provided on the top surface of the tank, a large amount of unburned gas generated by the rapid fire extinguishing is communicated from the air chamber. Inhaled by the odor absorbing device and diffused into the atmosphere, it can alleviate the strong odor at the time of fire extinguishing. Can be improved at the same time.

Further, in the oil combustor according to the second aspect, the communicating portion between the lead guide passage in which the light core moves up and down and the air chamber is provided with a slit having a predetermined width on the entire circumference, and suction is uniformly performed from the entire circumference. I am trying to do it.

By providing a slit of a predetermined width determined by the amount of unburned gas at the time of fire extinguishing on the entire circumference of the communicating portion between the core guide passage and the air chamber, the unburned gas generated over the entire circumference of the lamp core can be made uniform. The air chamber can be quickly and efficiently taken into the air chamber, so that the air chamber can be turned into a flammable area in a short time at the time of fire extinguishing. The suction operation can also be performed uniformly from the entire circumference of the lamp core, and the fire extinguishing odor can be improved without the unburned gas being partially leaked to the upper combustion cylinder side to emit a strong odor.

Further, in the petroleum combustor according to the third aspect, the core outer cylinder is integrated as a double-cylinder configuration in which a guide cylinder is press-fitted and a sealed portion is provided on the bottom side.

An expansion portion is provided on the outer peripheral side of the core outer cylinder, and a guide cylinder is integrated by press-fitting and caulking the outer circumference of the core outer cylinder with reference to the outer periphery of the core outer cylinder. It is possible to provide an air chamber by making it cylindrical,
Since the closed portion is provided on the bottom surface side, the communication passage can be formed with a predetermined passage resistance, and high-temperature combustion gas can be prevented from flowing back to the tank side during fire extinguishing.

According to a fourth aspect of the present invention, in the oil combustor, the plurality of communication paths communicating the air chamber and the inside of the tank are formed by providing beads on at least one of the core outer cylinder and the guide cylinder.

[0015] Since a bead is provided on the bottom surface of the guide cylinder or the core outer cylinder, when the guide cylinder is press-fitted into the core outer cylinder, a predetermined communication path is formed by bringing the bottom surfaces into contact with each other. It is possible to simplify the configuration and improve the workability, and it is possible to process into any shape,
The shape of the communication passage, that is, the passage resistance can be freely set.

Further, in the oil combustor according to the fifth aspect, the plurality of communication passages communicating the air chamber and the inside of the tank have at least one bent portion in the middle of the passage.

Since the communication passage has a predetermined passage resistance due to the bent portion, it is possible to prevent the high-temperature combustion gas from flowing back to the tank during fire extinguishing.

According to a sixth aspect of the present invention, in the petroleum combustor, the plurality of communication passages communicating the air chamber and the inside of the tank are arranged at equal intervals on the bottom side of the guide cylinder, so that the sucked vaporized gas is uniformly stored in the tank. It is discharged into the inside.

Further, in the oil combustor according to the seventh aspect, the plurality of communication passages communicating the air chamber and the inside of the tank are configured such that the passage resistances thereof are equal to each other.

Further, in the oil combustor according to the eighth aspect, the plurality of communication passages communicating the air chamber and the inside of the tank have a configuration in which the inlet and the outlet have a predetermined distance in the circumferential direction.

Since a plurality of communication passages are arranged at equal intervals in the same shape and the passage resistances thereof are equalized, a balanced suction passage can be formed, and the communication passage is partially concentrated at the time of fire extinguishing. The problem that the high-temperature combustion gas flows backward can also be solved, and a stable deodorizing operation can be secured.

In the oil combustor according to the ninth aspect, the inner diameter of the core outer cylinder of the portion forming the air chamber is 1.1 times the outer diameter of the guide cylinder.
１．２1.2 times.

By limiting the volume of the air chamber so that the inner diameter of the core outer cylinder is 1.1 to 1.2 times the outer diameter of the guide cylinder, the fire extinguishing time can be significantly reduced over the entire combustion range. it can.

In the oil combustor according to the tenth aspect, the guide cylinder is made of a stainless steel material.

By suppressing the heat conduction from the core outer cylinder, the generation of vaporized gas from the lamp core at the time of fire extinguishing can be reduced, and the fire extinguishing time and the fire extinguishing odor can be reduced.

[0026]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a structural diagram of an oil combustor of the present invention, and FIG.
FIG. 4 is a view of the core outer cylinder viewed from the bottom.

In FIG. 1, reference numeral 1 denotes a fixed tank (hereinafter, referred to as a tank) for receiving kerosene from a cartridge tank (not shown), and 2 denotes a cylindrical core guide tube erected on the tank 1. Is provided with a multi-cylinder core outer cylinder 4 having an air chamber 3 formed therein. The core outer cylinder 4 is integrally formed by press-fitting the guide cylinder 5 until it comes into contact with the bottom surface 4c of the core outer cylinder 4 with the lower outer peripheral portion 4a as a reference. The air chamber 3 is formed with a predetermined gap, and a core guide passage 8a for guiding the vertical movement of the lamp core 8 is formed. An opening 3a having a slit shape of a predetermined width is provided over the entire circumference above the core guide passage 8a so as to communicate with the air chamber 3. This unit is attached to the tank 1 via the packing 6. Further, a plurality of fire extinguishing holes 4d for communicating the air chamber 3 with the outside air are provided in the expansion portion 4b of the core outer cylinder 4 facing the air chamber 3, and the outside fire tray 7 is press-fitted and mounted on the upper portion. ing. A light core 8 is provided between the core guide tube 2 and the guide tube 5, and is vertically movable by a well-known core vertical mechanism (not shown). An inner fire tray 9 is provided above the core guide tube 2.
Is provided, and a combustion cylinder 10
Is placed.

A plurality of convex beads are provided on the bottom surface 5a of the guide cylinder 5 on the surface that contacts the bottom surface 4c of the core outer cylinder 4 so as to open the air chamber 3 to the tank 1. Communication passage 5
a. An odor absorbing device 11 having a built-in motor is installed on the upper surface of the tank 1 so that the communication passage 5a, the air chamber 3, the opening 3a, and the core guide passage a communicate with each other via the inside of the tank 1. are doing.

In the above configuration, the inner fire tray 9 is used during normal combustion.
The wick 8 protrudes from the surface, and changes the wick height from the maximum height A shown in FIG.
At this time, since a slight gap is provided between the light core 8 and the core outer cylinder 4, the air chamber 3 and the opening 3a are formed through the fire extinguishing hole 4d of the core outer cylinder 4.
, A slight flow of air is generated from the gap with the light core 8 to the upper portion, so that there is no condensation in the air chamber 3 and the air chamber 3 can be maintained in a negative pressure state. Then, the heat from the combustion tube 10 is received by the light core 8, the outer fire plate 7, and the inner fire plate 9, and the temperature of each of them rises. In addition, when the combustion is reduced, the combustion position is lowered, and each temperature is about 100 ° C. compared to when the maximum height A of the wick is attained.
In the normal configuration, even after the wick 8 has been lowered to the fire extinguishing position B by the fire-extinguishing operation, heat conduction from the wick outer tube 4 and the wick guide tube 2 and vaporization of kerosene from the wick 8 due to the temperature rise of the wick 8 itself. It usually takes about 3 minutes to extinguish the fire.

However, in the configuration having the air chamber 3 as in the present invention, the wick 8 is moved to the fire extinguishing position B by the fire extinguishing operation.
When it descends, the opening 3a, which is the communication portion between the wick guide passage 8a and the air chamber 3, is opened, and the unburned gas near the lamp core 8 is taken into the air chamber 3 under a negative pressure, and the fire extinguishing hole 4
d instantaneously becomes a flammable region by mixing with air supplied from d, ignites by the residual fire of the wick 8 at the fire extinguishing position, burns explosively, and can extinguish the fire instantaneously. Can be achieved.

However, the rapid fire extinguishing involves a unique combustion mode in which the fire is extinguished instantaneously by explosive combustion, so that its exhaust gas characteristics cannot be said to be good and the fire extinguishing odor tends to deteriorate. In addition, since the temperature of the wick 8 and its surroundings do not drop immediately, the vaporization of kerosene from the wick 8 continues,
In combination with the above exhaust gas characteristics, the fire extinguishing odor at the time of rapid fire extinguishing is extremely bad.

Therefore, the present invention is configured such that the odor absorbing device 11 faces the inside of the tank 1, and the communication passage 5a, the air chamber 3, the opening 3a, and the core guide passage a communicate with each other through the inside of the tank 1. As a result, the exhaust gas generated at the time of rapid fire extinguishing and the vaporized gas from the wick 8 are operated by the odor absorbing device 11 so that the opening 3
a, and is sucked into the communication path 5a and the tank 1 and diffused into the atmosphere to reduce the odor by reducing the odor, and to prevent the kerosene vaporized gas that continues to be vaporized from the wick 8 from rising to the combustion tube 10 to extinguish the fire. Combustion cylinder 10 in high temperature condition
To prevent thermal decomposition and prevent generation of odor, such as acetaldehyde, to suppress odor, which was a problem during rapid fire extinguishing.

Further, the configuration of the air chamber 3 can be made into a unit by press-fitting the guide cylinder into the core outer cylinder 4, and it can be configured only by installing it in the tank 1, so that accuracy and assemblability can be improved. In addition, since the odor absorbing operation does not involve suction from the gap between the light core 8 and the core outer tube 4 as in the conventional case, there is no variation in the suction amount due to the variation in pressure loss due to the variation in the light core 8, and there is no variation in the fire extinguishing time. Improved fire fighting performance and reduced odor.

As shown in FIG. 2, the communication passage 5a has a predetermined distance in the circumferential direction between an inlet 5b communicating with the air chamber 3 and an outlet 5c facing the tank 1. Arrange
By forming a double L-shape therebetween, an appropriate passage distance can be secured and a predetermined passage resistance can be provided, so that high-temperature combustion gas can be prevented from flowing back to the tank side during fire extinguishing. . Then, the communication path 5a
By disposing a plurality of patterns and distributing the patterns uniformly, it becomes possible to suction unburned gas at the time of fire extinguishing in a well-balanced and uniform manner. The deodorizing effect can be secured.

According to experiments, if the volume of the air chamber 3 is set so that the diameter of the expansion portion 4b of the core outer cylinder 4 is 1.1 to 1.2 times the outer diameter of the guide cylinder 5, It was found that the fire extinguishing time in the entire combustion range was significantly reduced.

Further, since the guide cylinder 5 is made of a stainless steel material, heat conduction can be suppressed.
The temperature when the light core 8 is lowered can be lowered, the vaporization of kerosene from the light core 8 can be suppressed, and the fire extinguishing performance and the reduction of odor can be improved.

[0038]

According to the first aspect of the present invention, the fire extinguisher for normal and emergency fire extinguishing is provided by the opening provided on the outer peripheral surface of the core outer cylinder and the air chamber provided in communication with the core guiding passage. The fire extinguishing time can be shortened by rapid fire extinguishing with the same height, and the air chamber is opened into the tank by the communication passage provided on the bottom of the guide cylinder and communicated with the odor absorbing device provided on the top of the tank, which causes the rapid fire extinguishing. A large amount of unburned gas is sucked from the air chamber through the communication passage by the odor absorbing device and diffused into the atmosphere, which can reduce the strong odor at the time of fire extinguishing. The time can be reduced, and the fire odor can be improved at the same time.

According to the petroleum combustor of the second aspect, a slit having a predetermined width determined by the amount of unburned gas at the time of fire extinguishing is provided on the entire circumference of the communicating portion between the core guide passage and the air chamber. Unburned gas generated around the entire circumference of the wick can be uniformly and efficiently taken into the air chamber, so that the air chamber can be turned into a flammable area in a short time at the time of fire extinguishing. It becomes possible, and the suction operation of unburned gas after fire extinguishing can be performed uniformly from the entire circumference of the wick,
The fire extinguishing odor can be improved without the unburned gas partially leaking to the upper side of the combustion cylinder to emit a strong odor.

According to the third aspect of the present invention, the oil combustor is provided with an expansion portion on the outer peripheral side of the core outer cylinder, and a guide cylinder is press-fitted and crimped on the inner side thereof with reference to the outer periphery of the core outer cylinder. Because it is integrated, it is possible to accurately and easily form a double cylinder to provide an air chamber, and since a closed portion is provided on the bottom surface side, a communication passage having a predetermined passage resistance is formed. It is possible to prevent the high-temperature combustion gas from flowing back to the tank side during fire extinguishing.

According to the fourth aspect of the present invention, since the bead is provided on the bottom surface of the guide cylinder or the core outer cylinder, when the guide cylinder is pressed into the core outer cylinder, the bottom faces are brought into contact with each other. A predetermined communication path can be formed by contact, and the structure can be simplified and workability can be improved, and processing can be performed to an arbitrary shape. Therefore, the shape of the communication path, that is, the path resistance can be freely set. Can be set to

According to the fifth aspect of the present invention, since the communication path has a predetermined passage resistance due to the bent portion, it is possible to prevent the high-temperature combustion gas from flowing back to the tank during fire extinguishing. be able to.

According to the petroleum combustor of the sixth, seventh and eighth aspects, a plurality of communication passages are arranged at equal intervals in the same shape and the passage resistances are made equal, so that balanced suction is achieved. A path can be formed, and the problem that the high-temperature combustion gas flows back in a concentrated manner at the time of fire extinguishing can be solved, and a stable deodorizing operation can be ensured.

According to the petroleum combustor of the ninth aspect, the capacity of the air chamber is set so that the inner diameter of the core outer cylinder is 1.1 times the outer diameter of the guide cylinder.
By limiting to 1.2 times, the fire extinguishing time can be extremely shortened in the entire combustion range.

According to the petroleum combustor of the tenth aspect, by suppressing the heat conduction from the core outer cylinder, the generation of vaporized gas from the lamp core at the time of fire extinguishing is reduced, thereby shortening the fire extinguishing time and extinguishing the fire. Odor can be reduced.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an oil combustor according to an embodiment of the present invention.

FIG. 2 is a bottom view of a core outer cylinder of the oil combustor.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tank 2 Core guide cylinder 3 Air chamber 3a Opening (communication part) 4 Core outer cylinder 4d Fire extinguishing hole 5 Guide cylinder 5a Communication passage 8 Light core 8a Core guide passage 11 Odor absorbing device

Claims (10)

[Claims] 1. A tank for storing fuel, a core outer cylinder and a core guide cylinder provided in the tank, a light core which moves up and down between the core outer cylinder and the core guide cylinder, and a lamp passing through the core outer cylinder. A guide tube for guiding the vertical movement of the light core, and an odor absorbing device provided on the upper surface of the tank, wherein the guide tube moves up and down with a predetermined gap with respect to the inner peripheral surface of the core outer tube. An air chamber communicated with the wick guide passage is formed, and a plurality of communication passages are provided on the bottom surface side. The air chamber is opened into the tank through the communication passage to communicate with the absorbing device, and a wick for fire extinguishing is provided. An oil combustor having a configuration for sucking vaporized gas from the air, and having a fire extinguishing hole for communicating the air chamber with the outside air at predetermined intervals on an outer peripheral surface of the core outer cylinder facing the air chamber. 2. A petroleum according to claim 1, wherein a communicating portion between the core guide passage in which the light core moves up and down and the air chamber is provided with a slit having a predetermined width all around the circumference so as to uniformly suction from the entire circumference. Combustor. 3. The oil combustor according to claim 1, wherein the core outer cylinder is press-fitted with a guide cylinder and integrated as a double cylinder having a sealed portion on the bottom side. 4. The petroleum combustor according to claim 1, wherein the plurality of communication passages for communicating between the air chamber and the inside of the tank are formed by providing beads on at least one of the core outer cylinder and the guide cylinder. 5. The petroleum combustor according to claim 1, wherein the plurality of communication passages communicating between the air chamber and the inside of the tank have at least one bent portion in the middle of the passage. 6. A plurality of communication passages communicating between the air chamber and the inside of the tank are arranged at equal intervals on the bottom surface side of the guide tube so as to uniformly discharge the sucked vaporized gas into the tank.
Or the oil combustor according to 4. 7. The petroleum combustor according to claim 1, wherein the plurality of communication passages communicating between the air chamber and the inside of the tank have the same passage resistance. 8. The petroleum combustor according to claim 1, wherein the plurality of communication paths communicating the air chamber and the inside of the tank have a configuration in which an inlet portion and an outlet portion have a predetermined distance in a circumferential direction. 9. The petroleum combustor according to claim 1, wherein the inner diameter of the core outer cylinder of the portion forming the air chamber is 1.1 to 1.2 times the outer diameter of the guide cylinder. 10. The oil combustor according to claim 1, wherein the guide cylinder is made of a stainless steel material.