JP2000007103A - Fore extinguishing container for combusting matter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To keep a combusting matter from being extinguished due to lack of oxygen immediately after it is fed into the container case so as to keep tar from adhering to an internal wall of a container case for wastes by communicating the container case with a nitrogen gas generator, and to prevent offensive odors from being given off therearound and simultaneously to facilitate removal of wastes in the container case with dry type construction thereof. SOLUTION: A fire extinguishing container for a combusting matter has a feed port 1 for wastes, a container case 2 for wastes, and a nitrogen gas generator 3. The generator 3 and the container case 2 are connected to each other with a pipe 4. The container case 2 may be connected to an incombustible gas supplier 14 equipped with an incombustible gas cartridge 11, a plug opening device 12 and a decompression valve 13. The generator 3 is a type to separate and extract nitrogen gas from air by alternately pressurizing and depressurizing an adsorbing tank 22 containing adsorbent 2, or a type to obtain nitrogen gas from pressurized air fed into a hollow fiber membrane in a permeating tank by permeating gases other than nitrogen gas through the hollow fiber membrane.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire extinguishing container for combustion products, and is suitable for, for example, a cigarette stand or a container for burnable garbage, which may be filled with a burning material such as a cigarette butt. .

[0002]

2. Description of the Related Art There is no conventional butler stand equipped with a fire extinguishing mechanism. Smoke often rises in a butter stand such as that at a station platform. At present, the fire is extinguished in this case with water. There is also a cigarette stand with a partial smoke suppression mechanism.

[0003]

The application of water produces an unpleasant odor and the treatment of butts wet with water is a very time-consuming task. In addition, there is a problem that a cigarette butt is clogged in the dosing part because the cigarette butt charging part is narrow with a part of the smoke eliminating mechanism. The present invention aims to solve the problems of the prior art by providing a nitrogen gas generator.

[0004]

SUMMARY OF THE INVENTION A fire extinguishing container according to the present invention has a waste inlet, a waste storage case, and a nitrogen gas generator. The generator and the storage case are connected by a conduit.

This fire extinguishing container is not suitable for a portable type having a small capacity of a waste storage case, and is suitable for a stationary type having a large capacity. The input port is open at the top of the container in the case of a butt holder, and may be on the top or side of the container in the case of burnable garbage. A door is provided on the side of the container, and the container is opened and closed when the storage case is taken out and the waste is thrown away, or when the generator is inspected or repaired.

In general, a tube is used to connect the generator to the storage case. The nitrogen gas generated by the generator flows into the storage case, and the inside of the storage case is deprived of oxygen to extinguish the burning one. The supply of nitrogen gas may be continuous or intermittent. In addition, the supply amount is an amount necessary for extinguishing the combustion material.

[0007] The storage case may be connected to a nonflammable gas supply device provided with a nonflammable gas cartridge, an opening device, and a pressure reducing valve. If the generator requires a power source, the generator may stop when a power failure or wiring failure occurs. However, since the gas supply device does not use a power supply, it serves as a backup when the generator is stopped in this way.

[0008] The generator may be of a type in which nitrogen gas is separated and extracted from air by alternately increasing and decreasing pressure in an adsorption tank containing an adsorbent. Since the adsorbent undergoes the action of pressurization and depressurization alternately and repeatedly, even if foreign matter enters the gas and this foreign matter enters the fine voids of the adsorbent at the time of pressurization, it is sucked out of this void during the subsequent depressurization It is discharged to the outside together with oxygen gas and the like, and does not cause clogging.

[0009] Even if the generator is of a type in which a gas other than nitrogen gas is transmitted from the compressed air fed into the hollow fiber membrane in the permeation tank through the hollow fiber membrane, nitrogen gas is obtained. Good. As compressed air flows through the hollow fiber membrane, oxygen passes through the hollow fiber membrane and is separated from nitrogen,
The separation action is performed continuously. Therefore, there is no cycle switching such as adsorption and regeneration, and no noise is generated or dust is scattered.

[0010] The housing case may be provided with a flange for preventing diffusion of nitrogen gas at the upper end of the peripheral wall. Nitrogen gas is easily diffused because of its low density. However, since the upper end of the peripheral wall of the housing case has a flange, the nitrogen gas is prevented from diffusing by the flange. Therefore, the consumption of nitrogen gas is saved.

This flange may be in a state where the upper end of the peripheral wall is bent. However, if the flange is curled, nitrogen gas which is to be diffused to the outside along the peripheral wall is diverted into the housing case at the curled portion, so that diffusion is prevented. Is more certain.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a waste input port, 2 denotes a waste storage case, and 3 denotes a nitrogen gas generator. The generator 3 and the housing case 2 are connected by a conduit 4.

The nitrogen gas generated by the nitrogen gas generator 3 flows into the storage case 2 through the conduit 4. Therefore, the inside of the storage case 2 is in an oxygen-deficient state, and the combustion products C introduced from the input port 1 into the storage case 2 cannot continue burning, and immediately extinguishes the fire. Therefore, the smoke does not rise.

The main object of the burned material C is a cigarette butt, and in this case, the container serves as a cigarette stand. In the case of a butts stand, it is not necessary to inject water as in the conventional case, so that the injection of water does not cause a bad odor or the butts are decomposed and troublesome in removal. Even in the case of regular burning garbage boxes, cigarette suckers may be inadvertently thrown in, or in the case of malicious use, fire may be thrown in. It is also possible to divert the sex container as a trash can.

The storage case 2 is connected to a noncombustible gas supply device 14 having a noncombustible gas cartridge 11, an opening device 12 and a pressure reducing valve 13. In this case, if the generator 3 requires a power supply, even if the generator 3 is stopped due to a power failure or a wiring failure, the power supply 14 does not use the power supply, and thus serves as a backup.

An adsorption tank 2 in which a generator 3 contains an adsorbent 2
2 is a type in which nitrogen gas is separated and extracted from air by alternately increasing and decreasing pressure.

The raw material air is compressed by a compressor 23 and sent to a dehumidifying and dust removing device 24, and moisture and the like are discharged by an auto drain 25. The clean pressurized air alternatively enters a pair of adsorption tanks 22 filled with the adsorbent 21, and oxygen is adsorbed by the adsorbent 21. The remaining nitrogen enters the buffer tank 26 and is sent to the demand side through the flow control valve 27. The non-selected adsorption tank 22 is depressurized, and the oxygen adsorbed by the adsorbent 21 escapes from this and is discharged to the outside. Therefore, one adsorption tank 22 receives the pressurizing and depressurizing actions alternately.

In this case, the adsorbent 21 undergoes the pressurizing and depressurizing actions alternately and repeatedly, so that even if foreign matter enters the gas and enters the fine void of the adsorbent 21 at the time of pressurization, During the subsequent depressurization, the air is sucked out of this gap and discharged to the outside together with oxygen gas and the like. Therefore, no clogging occurs.

The generator 3 is a hollow fiber membrane 32 in a permeation tank 31.
In this type, nitrogen gas can be obtained by passing gas other than nitrogen gas through the hollow fiber membrane 32 from the compressed air sent into the air.

The raw material air is compressed by a compressor 33 and sent to a dehumidifying and dust removing device 34 to remove moisture and the like. The pressure of the clean air is adjusted by the pressure adjuster 35.

The pressure-adjusted pressurized air enters the permeation tank 31 loaded with the hollow fiber membrane 32, oxygen permeates through the hollow fiber membrane 32 and is taken out of the permeation tank 31, and nitrogen gas is supplied to the hollow fiber membrane 31. After passing through the internal space without being able to permeate through 32, it is sent to the demand side through the flow control valve 36. Therefore, the permeation tank 31 is continuously subjected to a pressurizing action.

In this way, while the compressed air flows through the hollow fiber membrane 32, oxygen permeates through the hollow fiber membrane 32 and is separated from nitrogen, so that the separating action is continuously performed. Therefore,
There is no cycle switching such as adsorption and regeneration, and no noise or dust is scattered.

The housing case 2 has a flange 42 at the upper end of the peripheral wall 41 for preventing diffusion of nitrogen gas. In this case,
The nitrogen gas is easily diffused because of its low density. However, since the flange 42 is provided at the upper end of the peripheral wall 41 of the housing case 2, the diffusion of the nitrogen gas is prevented by the flange 42. Therefore, the consumption of nitrogen gas is saved.

[0024]

EXAMPLES The following experiments were conducted using a pressurized-depressurized type nitrogen gas generator. The amount of nitrogen gas generated by the pressurized-depressurized type nitrogen gas generator was adjusted to 1 liter per minute by a flow control valve, and sent to a W300 × D300 × H300 buttress container. 15% in minutes
After that, the oxygen concentration gradually decreased with the passage of time, and settled at an oxygen concentration of about 5% in one hour. This seems to have influenced the nitrogen gas diffusion to some extent, but had no effect on the fire extinguishing performance. This is because combustion does not occur when the oxygen concentration is 15% or less. In this state, even if the lit cigarette was put into the cigarette holder, the cigarette was extinguished immediately.

[0025]

According to the present invention, since the waste storage case is connected to the nitrogen gas generator, even if the combustion material is thrown into the storage case, the fire is immediately extinguished due to lack of oxygen and the dust is stored. Since it does not adhere to the inner wall surface of the case and is of a dry type, it does not cause a bad smell to drift around, and it is easy to remove waste in the storage case.

According to the second aspect of the present invention, since the non-combustible gas supply device that does not require a power supply is provided, the fire extinguishing function can be kept unchanged even if the generator does not operate due to a power failure or the like.

According to the third aspect, clogging of the adsorbent due to foreign matter can be prevented, and a long-term and stable operation can be achieved.

According to the fourth aspect, since the separating operation of the nitrogen gas is performed continuously, generation of noise and scattering of dust can be eliminated.

According to the fifth aspect, the diffusion of the nitrogen gas having a low density can be prevented by returning it by the flange, and the consumption of the nitrogen gas can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a specific example of a digestible container with a door opened.

FIG. 2 is a sectional side view of the storage case.

FIG. 3 is a flow sheet of a pressurized-depressurized type nitrogen gas generator.

FIG. 4 is a flow sheet of a film type nitrogen gas generator.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Input port 2 Storage case 3 Generator 4 Pipe C Combustion material 14 Supply device 21 Adsorbent 22 Adsorption tank 31 Permeation tank 32 Hollow fiber membrane 41 Peripheral wall 42 Flange

Claims (5)

[Claims] 1. A waste inlet (1), a waste storage case (2), and a nitrogen gas generator (3).
A fire extinguishing container for combustible material, wherein (3) and the storage case (2) are connected by a conduit (4). 2. The storage case (2) is connected to an incombustible gas supply device (14) including a noncombustible gas cartridge (11), an opening device (12) and a pressure reducing valve (13). The fire-extinguishing container for a combustion product according to claim 1. 3. The type in which the generator (3) separates and extracts nitrogen gas from air by alternately pressurizing and depressurizing an adsorption tank (22) containing an adsorbent (2). Item 6. A fire extinguisher container for a combustion product according to Item 1. 4. A gas other than nitrogen gas permeates through the hollow fiber membrane from the compressed air sent from the generator (3) to the hollow fiber membrane (32) in the permeation tank (31), thereby producing nitrogen gas. The fire extinguishing container for combustible matter according to claim 1, wherein the container is of a type that can obtain gas. 5. The storage case (2) is provided with a flange (41) at the upper end of its peripheral wall (41) for preventing diffusion of nitrogen gas.
Or a fire-extinguishing container for a combustion product according to item 2.