JP2002095764A - Method and device for fire extinguishing or pilot-ignition prevention for combustible liquid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable the reuse of a physical object and environmental protection after the operation for pilot-ignition prevention by reliably conducting fire extinguishing or the pilot-ignition prevention for a combustible liquid by a simple method and preventing the pollution of the combustible liquid due to the operations for the fire extinguishing and the pilot-ignition prevention. SOLUTION: The device for the fire extinguishing or the pilot-ignition prevention is composed of a vacuum tank 1 whose inside is decompressed so as to permit the combustible liquid 6 to be introduced on the strength of negative pressure, a connecting body 7 for connecting the vacuum tank 1 with a storage part 5 for the combustible liquid 6, and a control valve for controlling the connection of the connecting body 7 with the vacuum tank 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to tempura oil used at home, kerosene for heating, tempura oil and alcohol used by food companies in food processing, various alcoholic beverages manufactured by brewers,
Ignition of flammable liquids such as alcohol and other solvents used by industrial producers for washing and draining and drying of workpieces, processing oil used in cutting and rolling work, and acetone used as a solvent in various industrial production work. Extinguish fire easily. Also,
The present invention relates to a method and an apparatus for extinguishing or preventing a flammable liquid for the purpose of preventing the flammable liquid from being ignited when the flammable liquid poses a danger of ignition.

[0002]

2. Description of the Related Art Conventionally, when a flammable liquid is ignited during work using a flammable liquid at home or factory, a fire extinguisher or the like is used to spray an appropriate extinguishing agent or extinguishing gas. The fire was extinguished. For example, a method of extinguishing fire by shutting off oxygen by injecting a gas such as carbon dioxide, halon, or nitrogen into a combustible liquid during combustion, a method of spraying a liquid such as water or an aqueous solution of an alkali metal salt, There was a method of spraying powder such as sodium carbonate and potassium bicarbonate.

[0003]

However, in this conventional method, the flammable liquid is not completely isolated, and the fire is extinguished in a state where it is present at the combustion site. In addition, it took a lot of time to extinguish the fire, and the danger of burning by others was high. Further, since the fire extinguishing agent is mixed into the unburned flammable liquid, it cannot be reused and must be discarded. Therefore, not only was there waste of resources and uneconomical, but also environmental destruction was likely to occur. In addition, the fire extinguishing work severely pollutes not only the flammable liquid but also the equipment and the interior of the room, so that cleaning up is troublesome.

[0004] Due to such problems, it is necessary to strictly prevent intrusion of dust, microorganisms, and the like, and in a clean room where work is performed in an enclosed space, the fire extinguishing work by the conventional method is particularly unsuitable.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is possible to reliably extinguish a fire by a simple method when a flammable liquid used at home or for business is ignited. In addition to extinguishing the fire, it also prevents the flammable liquid from igniting due to high temperature or the like.

Further, it is possible to prevent the contamination of the flammable liquid at the time of the fire extinguishing and ignition preventing work, to reuse the object after the fire extinguishing or the fire preventing operation, and to improve the economic efficiency.
Environmental protection is also possible. Further, such a fire extinguishing or flash preventing device having excellent functionality is formed at a low cost with a simple structure.

The term "flammable liquid" used in the present specification refers to tempura oil used at home, kerosene for heating, tempura oil and alcohol used by food companies in the food processing process, and various liquors manufactured by sake brewers. Alcohol and other solvents used by industrial producers for cleaning and drying
Includes all flammable liquids, such as processing oil used in rolling work and acetone used as a solvent in various industrial production works, and is a flammable liquid that can be suctioned and collected by negative pressure in a vacuum tank. It shows.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention introduces a flammable liquid which has caused ignition or danger of ignition into a vacuum tank to extinguish or prevent fire. It embodies the invention characterized by the following.

Further, the above-mentioned apparatus comprises a vacuum tank capable of reducing the pressure inside thereof and introducing a flammable liquid by negative pressure, a connecting body for connecting the vacuum tank and a flammable liquid storage section,
It comprises a control valve for controlling the connection between the connection body and the vacuum tank.

The vacuum tank may be connected to a vacuum pump so that the inside of the vacuum tank can be depressurized.

Further, the vacuum tank may be a vacuum container whose inside is previously sealed under reduced pressure.

Further, the connection between the vacuum tank and the storage section may be performed by connecting and fixing a connecting body in advance.

Further, the connection between the vacuum tank and the storage section may be performed by connecting a movably connected body to the vacuum tank and the storage section when the flammable liquid is introduced.

[0014]

The present invention is constructed as described above. When a flammable liquid is used or stored in a household or factory, etc., when the flammable liquid is in danger of igniting or igniting, a fire extinguishing or fire preventing operation is performed. In order to perform this, a vacuum tank is connected to the storage section storing the combustible liquid during combustion. This connection is made via a connection body such as a heat-resistant hose or pipe. Next, by opening a control valve provided between the connector and the vacuum tank, the flammable liquid in the storage unit is introduced into the vacuum tank using the negative pressure of the vacuum tank.

As described above, by introducing all the flammable liquid in the storage section into the vacuum tank, the cause of combustion is eliminated in the storage section. For this reason, the fire in the storage section is immediately extinguished, and a large fire due to the spread of fire can be favorably prevented. Also, even if the combustible liquid during combustion is introduced into the vacuum tank in a ignited state,
Since there is no oxygen due to being shut off from the outside air, there is no fire in the vacuum tank and it is safe. When the introduction into the vacuum tank is completed, the control valve is closed to prevent the flammable liquid in the vacuum tank from flowing back into the storage section.

In addition, as in the case of extinguishing a flammable liquid that has ignited, it is possible to prevent flammable liquid by introducing a flammable liquid that has a danger of ignition due to high temperature or the like into a vacuum tank and removing it from the storage section. it can.

As described above, the operation for extinguishing or preventing the ignition of the flammable liquid can be performed without the need for complicated operation procedures, electric power and power, etc.
The operation can be quickly performed by a simple operation of opening the control valve. Therefore, even in a panic state, the operator can smoothly extinguish or extinguish the fire.
Further, the device can be formed at a low cost with a simple structure.

Further, since a fire extinguisher or a gas which may harm the human body is not used, it can be used safely even in a place where a person exists. Furthermore, since the flammable liquid introduced into the vacuum tank is not contaminated by the fire extinguishing agent or the like, it can be reused, thereby improving economic efficiency and protecting the environment. In addition, since it prevents contamination of equipment and rooms such as storage units as well as flammable liquids, cleaning up after fire extinguishing is easy, and food processing and industrial production work can be quickly resumed. it can. In addition, the low contamination and the safety for the human body make it particularly suitable for use in a clean room or the like where it is necessary to strictly prevent dust or microorganisms from entering in a closed space and perform work. .

When the flammable liquid in the vacuum tank is reused, the control valve is opened, and the flammable liquid in the vacuum tank is returned to the storage section through the connector. At the time of this restoration, if the vacuum tank is located above the storage section, outside air may be introduced into the vacuum tank via the connector, or the vacuum release valve connected to the vacuum tank may be opened. By such a method, the flammable liquid in the vacuum tank is discharged into the storage section by its own weight. When the vacuum tank is located below the storage section or when the flammable liquid needs to be rapidly transferred to the storage section, pressure gas is introduced into the vacuum tank by appropriate means. According to the above method, the flammable liquid in the vacuum tank is forcibly pushed into the storage section.

When the operation of restoring the flammable liquid to the storage section is performed as described above, the reduced pressure in the vacuum tank is released. Therefore, if the inside of the vacuum tank can be decompressed by connecting a vacuum pump, after discharging the flammable liquid, the inside of the vacuum tank is depressurized again by the vacuum pump to prevent fire or ignition of the next flammable liquid. Can be prepared.

Further, the vacuum tank may be formed as a vacuum container whose interior is previously sealed under reduced pressure and may be formed without connecting a vacuum pump, so that a compact and inexpensive fire extinguishing or ignition preventing device can be formed. And if it is formed in a size like a conventional home fire extinguisher, it can be easily carried to an appropriate place at home and used. Further, it may be formed as a disposable product. However, if the vacuum container is collected after use and the inside is again sealed under reduced pressure by the manufacturer, it can be reused and is economical.

Further, if the connection between the vacuum tank and the storage section is made by connecting and fixing a connecting body to each of them in advance, the work of connecting the vacuum tank and the storage section is omitted when the fire extinguishing or the fire prevention work is performed. Can do things. Then, since the operation is completed only by opening the control valve, the fire extinguishing or ignition preventing operation can be quickly performed, and the spread of the fire can be favorably prevented. Therefore, quick work is possible even in a large-scale storage unit such as a large oil storage tank, a washing tank, or a sake tub for business use.
In this case, it is possible to control the opening and closing of the control valve by connecting it to a sensor or the like, and to automatically operate the control valve when a danger of ignition or ignition occurs.

Further, the connecting body is not connected and fixed in advance to the storage portion or the vacuum tank, but is connected to the vacuum tank or the storage portion when the flammable liquid is introduced by connecting a movable member formed in a movable manner. There may be. According to this structure, the vacuum tank can be moved to an arbitrary place to perform a fire extinguishing or fire preventing operation. Further, even if the storage section and the vacuum tank are not specially formed for the present invention, it is also possible to form a fire extinguishing or flash preventing device by combining existing products.
Further, the apparatus can be constituted by a vacuum tank, a connecting body and a control valve, and the connecting body can be connected to an existing home-cooking pan, a commercial oil storage tank, a washing tank, a sake barrel, or the like.

[0024]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIG. 1. (1) is a vacuum tank, which is connected to a vacuum pump (3) via an on-off valve (2). The inside is depressurized by (3). The vacuum tank (1) is connected to a pressure gauge (4) so that the inside of the vacuum tank can be checked for reduced pressure, and a vacuum release valve (10) can be connected to release the reduced pressure.

The storage unit (5) includes an oil storage tank, a storage tank for a flammable solvent, a sake barrel, a washing tank, and the like. The storage section (5) stores alcohol, alcoholic beverages, flammable solvents, processing oil, acetone, and other flammable liquids (6).

Then, the storage section (5) and the vacuum tank (1)
In addition, a connecting member (7) formed of a heat-resistant metal pipe or a hard resin pipe is connected and fixed. The connecting body (7) is provided with an appropriate control valve, and by opening and closing the control valve, communication and non-communication between the vacuum tank (1) and the storage part (5) via the connecting body (7). Is possible. In this embodiment, an automatic opening / closing valve (11) that is connected to a sensor (not shown) provided in the storage section (5) and operates in response to a detection signal of the sensor is used as the control valve.

The automatic opening / closing valve (11) is automatically closed in a normal state, and the storage section (5) and the vacuum tank (1) are kept in a non-communication state. And the sensor provided in the storage section (5)
When the ignition or high temperature of the flammable liquid (6) is detected, the automatic opening / closing valve (11) is opened, so that the storage part (5) communicates with the vacuum tank (1) and the vacuum tank (1) is negatively charged. The flammable liquid (6) in the storage part (5) through the connecting body (7) by suction force by pressure
Can be introduced into the vacuum tank (1). The vacuum tank (1) preferably has a larger liquid storage capacity than the storage section (5).

The connecting member (7) has an automatic opening / closing valve.
Apart from (11), a manual control valve (8) that can be manually opened and closed is provided in parallel with the automatic opening and closing valve (11). And power and power stop due to disasters or power outages,
When the automatic opening / closing valve (11) becomes inoperable, the manual control valve (8) is manually opened so that the flammable liquid (6) can be extinguished or ignited when ignited.
Further, even in an emergency, the operator can arbitrarily control communication or non-communication between the storage section (5) and the vacuum tank (1) with the manual control valve (8). In the vacuum tank (1) into which the flammable liquid (6) is introduced, the vacuum release valve (1) is provided.
0) is released to release the decompression, and by opening the automatic open / close valve (11) or the manual control valve (8),
The flammable liquid (6) in the vacuum tank (1) can be returned to the storage part (5).

In order to prepare for the ignition of the flammable liquid (6) during the food processing operation or the industrial production operation, the automatic open / close valve (11) and the manual control valve are provided.
(8) is closed so that the storage part (5) and the vacuum tank (1) are not in communication with each other, and the vacuum tank (3) is
Reduce the pressure inside (1). Then, the flammable liquid (6) is introduced into the storage section (5), and the fryer, the sake brewer, the other food processing, the cutting / rolling, the washing, the drying, and the other industrial production are performed.

During the introduction and storage of the flammable liquid (6) into the storage section (5), or during various operations using the flammable liquid (6) in the storage section (5), the storage section Flammable liquid in (5) (6)
When a fire occurs or a danger of ignition occurs, the sensor of the storage section (5) senses and opens the automatic open / close valve (11). If the automatic opening / closing valve (11) does not operate for some reason, the manual control valve (8) is manually opened.
By opening the automatic opening / closing valve (11) or the manual control valve (8), the storage section (5) communicates with the vacuum tank (1), and the flammability in the storage section (5) is reduced by the suction force of the negative pressure. Liquid (6) is introduced into vacuum tank (1). Then, when all the flammable liquid (6) in the storage part (5) is introduced into the vacuum tank (1), the automatic opening / closing valve (11) or the manual control valve (8) of the connecting body (7) is closed. Flammable liquid in vacuum tank (1) (6)
To prevent backflow into the storage section (5).

By introducing all the flammable liquid (6) into the vacuum tank (1) as described above, it is possible to quickly extinguish a fire that has occurred in the storage section (5) and reduce the risk of ignition. Can be prevented. Also, some flammable liquid is stored in the storage part (5).
Even if (6) remains, it burns out immediately and can prevent a large-scale fire due to fire spread or the like. Also, vacuum tank
Even if the combustible liquid (6) during combustion is introduced into (1), a fire occurs in the vacuum tank (1) because the inside of the vacuum tank (1) is shut off from the outside air and there is no oxygen. Will not
Safe introduction and storage of the flammable liquid (6) becomes possible.

Thus, the flammable liquid in the storage section (5)
When the ignition occurs in (6), the automatic opening / closing valve (11) is automatically opened, or the manual control valve is manually operated.
By simply opening (8), fire extinguishing work can be carried out quickly, and the spread of fire such as fire spread can be prevented well. Further, if the automatic opening / closing valve (11) is used, the operation can be performed smoothly even in a panic state such as ignition. Furthermore, the manual control valve (8) also enables simple operation of only the opening operation, thereby enabling a reliable operation in an emergency.
In addition, the rapid extinguishing of the fire can reduce the burning of the flammable liquid (6) and the damage to the storage section (5), other equipment, and the like, so that it can be prevented. Furthermore, since the fire extinguishing work does not use a fire extinguishing agent or gas which may adversely affect the human body, the work can be performed safely on the human body, and the flammable liquid (6) and the storage section (5) can be used. Other equipment and indoor contamination can be prevented well.

[0033] Due to this pollution prevention effect, it is easy to clean up the room and the apparatus after the fire extinguishing is completed, quick recovery is possible, and the flammable liquid (6) can be reused. That is,
When the cleaning of the work place is completed and the food processing operation and the industrial production operation can be resumed, the flammable liquid (6) introduced into the vacuum tank (1) is returned to the storage section (5). The method is to open the automatic opening / closing valve (11) or the manual control valve (8) and open the vacuum release valve (10) to open the vacuum tank.
Release the pressure reduction in (1). With this operation, outside air flows into the vacuum tank (1) through the vacuum release valve (10), and the flammable liquid (6) in the vacuum tank (1) is stored in the storage portion ( 5).

When the vacuum tank (1) is located above the storage section (5), the vacuum release valve (1)
By the opening of 1) and the inflow of outside air, the flammable liquid 6 in the vacuum tank 1 is discharged into the storage section 6 by its own weight. However, when the vacuum tank (1) is located below the storage section (5) or when the flammable liquid (6) needs to be rapidly transferred to the storage section (5), the vacuum is released. If pressure gas is introduced into the vacuum tank (1) from the valve (11) or the like, the vacuum tank (1)
The flammable liquid (6) can be forcibly and quickly pushed into the storage part (5).

When the restoration of the flammable liquid (6) is completed,
The automatic opening / closing valve (11) or the manual control valve (8) is closed again, and the inside of the vacuum tank (1) is depressurized by the vacuum pump (3) so that the flammable liquid (6) can be sucked. Therefore, the flammable liquid in the next food processing operation or industrial production operation
(6) Prepare for ignition. And the storage unit (5)
Using the non-contaminated flammable liquid (6) returned to the above, safe operation becomes possible.

Also, a connecting member having a structure connected to the storage portion (5)
Since it has a simple structure consisting only of (7) and the vacuum tank (1), the fire extinguishing or ignition preventing device can be formed at a low cost. Further, as described above, the vacuum pump (2) can be used many times by reducing the pressure in the vacuum tank (1), so that an economical apparatus can be obtained.

Further, since fire extinguishing agents and gases that adversely affect the human body or contaminate the interior of the room are not used, fire extinguishing work in a closed space such as a clean room where it is necessary to strictly prevent contamination in the room. It will be suitable.

Even when the food processing work or the industrial production work is not performed, if the flammable liquid (6) is left in the storage part (5), there is a danger of ignition and the flammable liquid
Inconveniences such as dust being mixed in the (6) and oxidation are caused. Therefore, if the flammable liquid (6) is introduced and stored in the vacuum tank (1) after completion of each operation, not only the flammable liquid (6) can be prevented from igniting, but also the quality can be prevented from deteriorating. You can do things.

In the first embodiment, the connecting member (7) is formed of a metal pipe or a hard resin pipe, and is connected and fixed to both the storage portion (5) and the vacuum tank (1). In the second embodiment, as shown in FIG. 2, the connector (7) is movably formed by a heat-resistant hose, and one end thereof is connected to only the vacuum tank (1), as shown in FIG. The vacuum tank (1) is provided with an automatic opening / closing valve (11) and a manual control valve (8) so that communication or non-communication between the vacuum tank (1) and the connector (7) can be controlled. The other end of the connecting body (7) is a storage section (5).
Are not connected and fixed, and can be freely inserted into the storage section (5).

In this embodiment, the vacuum tank (1) is
It is formed with a simple structure without providing the vacuum pump (3). The vacuum tank (1) is obtained by previously sealing the inside under reduced pressure during manufacture. Vacuum tank (1) formed in this way
Can maintain the decompression state for a long time, but the pressure gauge (4)
Is provided so that the reduced pressure state can always be checked. In addition, the vacuum tank (1) is provided with a vacuum release valve (10) to release the reduced pressure so that the flammable liquid (6) in the vacuum tank (1) can be restored to the storage part (5). .

In the device of the second embodiment formed as described above, when the flammable liquid (6) is not extinguished or ignited, the connecting member (7) is not inserted into the storage portion (5). It can be folded and rolled up for compact storage. Further, the pressure in the vacuum tank (1) is checked by the pressure gauge (4), and the flammable liquid (6) is kept in a reduced pressure state capable of sucking.

If a danger of ignition or fire occurs during various operations using the flammable liquid (6), first, the connecting body (7) is inserted into the storage section (5), and the flammable liquid (6) is inserted. Preparation for suctioning the liquid (6) is performed. Next, by automatically opening the automatic opening / closing valve (11) or manually opening the manual control valve (8), the storage portion (5) and the vacuum tank (1) are communicated with each other. The flammable liquid (6) in the storage part (5) is introduced into the vacuum tank (1) by suction. With this introduction, it is possible to reliably extinguish the fire in the storage section (5) and to avoid the danger of ignition. After the flammable liquid (6) is introduced into the vacuum tank (1), the automatic open / close valve (11) is operated in the same manner as in the first embodiment.
And the manual control valve (8) are closed to prevent backflow to the storage (5).

When the fire extinguishing or ignition preventing work and the cleaning thereof are completed, the automatic opening / closing valve (11) or the manual control valve (8) is opened, and the vacuum release valve (10) is opened to open the vacuum tank (1). Release the decompression of. By this operation, the flammable liquid (6) in the vacuum tank (1) is stored in the storage section (5).
As a result, the flammable liquid (6) can be used for food processing or industrial production operations again.

Further, in the first embodiment, since the connecting body (7) is connected and fixed to the storage part (5), only the work for extinguishing or preventing fire of the specific storage part (5) is possible. However, in the second embodiment, since the connecting body (7) is formed movably,
It is possible to perform fire extinguishing or igniting prevention work on any storage section (5). Further, the vacuum tank (1) can be formed as compact as a conventional fire extinguisher, so that it can be easily carried to any place at home and used.

However, in the second embodiment, not only the operation of opening the automatic opening / closing valve (11) or the manual control valve (8) but also the operation of inserting the connector (7) into the storage portion (5) is required. . On the other hand, in the first embodiment, the connector (7)
And the storage section (5) are connected and fixed, so that only the automatic opening / closing valve (11) or the manual control valve (8) needs to be opened, and quick work is possible. It also has a large storage area
In the case of (5), the connecting body (7) is stored in the storage section (5) and the vacuum tank.
The structure that is connected and fixed in advance to (1) is more flammable liquid
The stability of the connector (7) against the fluid pressure of (6) is increased, and smooth introduction into the vacuum tank (1) becomes possible. For the above reasons, it is preferable to form a fire extinguishing or flash preventing device having the structure of the first or second embodiment according to the purpose of use or scale.

[0046]

According to the present invention, the flammable liquid is isolated in a vacuum tank and removed from the accident site when the flammable liquid has a risk of ignition or ignition. Eliminate danger or extinguish fire. In addition, since this fire extinguishing and ignition prevention can be performed without contaminating the flammable liquid, resources can be reused, thereby improving economic efficiency, reducing waste, and reducing environmental pollution. Can be prevented.

Further, since the contamination of the equipment and the interior of the room is prevented, the recovery work after the fire is extinguished can be performed easily and quickly. In addition, since a fire extinguisher, a gas, or the like, which may have an adverse effect on the human body, is not used, a safe operation can be performed on the human body.
These advantages make the device particularly suitable for use in a closed space such as a clean room where it is necessary to severely prevent contamination. Further, a flammable liquid ignition and ignition prevention device can be obtained at a low cost with a simple structure.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a first embodiment of the present invention, in which a connecting body is previously connected and fixed to a storage section and a vacuum tank.

FIG. 2 is a sectional view of a second embodiment showing a state in which the connecting body is formed so as to be movable and inserted into a storage section.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vacuum tank 3 Vacuum pump 5 Storage part 6 Flammable liquid 7 Connecting body

[Procedure amendment]

[Submission date] February 28, 2001 (2001.2.2
8)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0003

[Correction method] Change

[Correction contents]

[0003]

However, in this conventional method, the flammable liquid is not completely isolated, and the fire is extinguished in a state where it is present at the combustion site. In addition, it took a lot of time to extinguish the fire, and the danger of burning by others was high. Further, since the fire extinguishing agent is mixed into the unburned combustible liquid, it cannot be reused and must be discarded. for that reason,
In addition to waste of resources, this is not only uneconomical, but also may cause environmental destruction. In addition, by this firefighting work,
Not only the flammable liquid but also the equipment and the room were heavily contaminated, which made the cleaning up troublesome.

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0032

[Correction method] Change

[Correction contents]

Thus, the flammable liquid in the storage section (5)
When the ignition occurs in (6), the automatic opening / closing valve (11) is automatically opened, or the manual control valve is manually operated.
By simply opening (8), fire extinguishing work can be carried out quickly, and the spread of fire such as fire spread can be prevented well. Also, it puts use an automatic open-close valve (11), can work smoothly even in a panic state of ignition and the like. Furthermore, the manual control valve (8) also enables simple operation of only the opening operation, thereby enabling a reliable operation in an emergency. Also,
Quick fire extinguishing, burning of flammable liquid (6) and storage
(5) The damage to other equipment and the like can be minimized. Furthermore, since the fire extinguishing work does not use a fire extinguishing agent or gas which may adversely affect the human body, the work can be performed safely on the human body, and the flammable liquid (6) and the storage section (5) can be used. Other equipment and indoor contamination can be prevented well.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0034

[Correction method] Change

[Correction contents]

When the vacuum tank (1) is located above the storage section (5), the vacuum release valve (1)
By opening 1) and inflow of outside air, the flammable liquid 6 in the vacuum tank 1 is discharged by its own weight into the storage section 5 . However, when the vacuum tank (1) is located below the storage section (5) or when the flammable liquid (6) needs to be rapidly transferred to the storage section (5), the vacuum is released. by introducing a pressurized gas into the vacuum tank (1) in the valves (10) or the like, vacuum tank (1)
The flammable liquid (6) can be forcibly and quickly pushed into the storage part (5).

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0036

[Correction method] Change

[Correction contents]

Also, a connecting member having a structure connected to the storage portion (5)
Since it has a simple structure consisting only of (7) and the vacuum tank (1), the fire extinguishing or ignition preventing device can be formed at a low cost. Further, as described above, by reducing the pressure of the vacuum tank (1) Te vacuum pump (3), because it can be used many times, it is possible to obtain an economical device.

Claims (8)

[Claims] 1. A method for extinguishing or preventing ignition of a flammable liquid, comprising introducing a flammable liquid that has caused a danger of ignition or fire into a vacuum tank to extinguish or prevent the ignition. 2. A vacuum tank capable of introducing a flammable liquid by depressurizing the inside and introducing a flammable liquid by a negative pressure, a connecting body for connecting the vacuum tank and a flammable liquid storage unit, and a connecting body and the vacuum tank. And a control valve for controlling connection of the flammable liquid. 3. The method for extinguishing or preventing ignition of a combustible liquid according to claim 1, wherein the vacuum tank is connected to a vacuum pump so that the pressure inside the vacuum tank can be reduced. 4. A fire extinguishing or igniting prevention device for a flammable liquid according to claim 2, wherein the vacuum tank is connected to a vacuum pump so that the inside of the vacuum tank can be depressurized. 5. The method according to claim 1, wherein the vacuum tank is a vacuum container whose interior is previously sealed under reduced pressure. 6. The apparatus for extinguishing or preventing ignition of a flammable liquid according to claim 2, wherein the vacuum tank is a vacuum vessel whose interior is previously sealed under reduced pressure. 7. The connection between the vacuum tank and the storage section is made by connecting and fixing a connecting body to each of them in advance.
Fire extinguishing or flammable protection device for flammable liquids. 8. The flammable tank according to claim 2, wherein the connection between the vacuum tank and the storage section is made by connecting a movably connected body to the vacuum tank and the storage section when the flammable liquid is introduced. For extinguishing or igniting a flammable liquid