JP2000035300A - Apparatus for drawing fluid from sealed container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To draw fluid such as a chemical agent, poison gas or the like from a sealed container such as an artillery shell, a bullet or the like. SOLUTION: The apparatus for drawing a fluid from a sealed container comprises a piston type hollow perforated bar 12 penetrating a sealed container wall 2 by a hitting force of a hammer 16, a combustion pressure of a propellant or a pressure of a hydraulic unit and having a hollow part for drawing the fluid from the container 2 of a structure 3 in which the hollow part communicates with a fluid outlet at a position of a hole opened at an outer wall of the container, a holder for mounting the structure 3 at the outer wall of the container. In this case, the fluid is drawn from the container 2 via the hollow part of the bar 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for extracting a fluid from a sealed container capable of taking out and detoxifying the harmful fluid or gas enclosed in the sealed container without leaking the harmful fluid or gas to the outside. About. In detail, it can be used to dispose of sealed containers filled with shells containing poisonous gas, harmful gases, and harmful liquids, taking out hazardous harmful gases or liquids without leaking, and sealing used for detoxification etc. The present invention relates to a device for extracting a fluid from a container.

[0002]

2. Description of the Related Art Disposal of hermetically sealed containers containing toxic gas or ammunition or harmful or liquid gases is problematic. Leaks during disposal can harm surrounding people and become a major social problem. In particular, in the case of shells containing poison gas, the problem is complicated because the quantity to be discarded is large and explosives such as explosives and fuze are contained in the shells. here,
Explosives are used to explode ammunition and release poisonous gas to the surroundings. Fuses ignite and explode when the ammunition collides with an object, detonating explosives.

Accordingly, various performances are required for a device for extracting a harmful fluid from a closed container, but the following requirements are important. The first requirement is to be able to operate reliably and to take out the fluid in the closed container. Unreliable operation cannot be used with confidence. The second requirement is that handling be secure. Unless handling is safe, workers cannot work with peace of mind. The third requirement is that there is no leakage of harmful gases or liquids. If a harmful gas or liquid leaks, the operation is interrupted, and the leaked gas or liquid is dangerous and takes time to remove. The fourth requirement is that the time required for extraction is short. In order to dispose of a large number of closed containers containing harmful fluids, it is necessary that the processing time for each one be short. The fifth requirement is that the processing cost is low. Generally, disposal of dangerous substances is expensive, but it is desirable to be able to safely process it at low cost if possible.

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention is directed to a sealed container which operates reliably, is safe to handle, has no leakage of harmful gases or liquids, has a short operation time, and has a low equipment cost. It is an object of the present invention to provide a harmful fluid extracting device.

[0005]

SUMMARY OF THE INVENTION The present invention has been intensively studied to solve the above problems, and as a result, it operates reliably, is safe to handle, does not leak harmful gases and liquids, and operates properly. An apparatus for extracting a fluid from an airtight container, which is characterized in that the time required is short and the cost is low, is provided by the following configuration.

That is, a propellant provided with an igniter for a propellant is provided so that a hollow piercing rod can be penetrated through a closed vessel wall by the combustion pressure of the propellant, the impact force of a hammer, or the pressure of a hydraulic device. A structure having a piston-type piercing rod acting by an impact force, and having a hollow portion in the piston-type piercing rod for taking out a fluid in the target closed vessel, and Provided is a device for extracting fluid from an airtight container, comprising a holder capable of attaching the structure to an outer wall of the object airtight container, and extracting fluid in the object airtight container through a hollow portion of the piercing rod.

[0007] That is, the piston type piercing rod in the structure,
A position of an outlet pipe in a hollow portion for extracting a fluid at a position slidably provided in the structure and at which the perforation of the wall of the sealed container is completed by a propellant impact force, and an outlet of the structure. A configuration in which the positions of the tubes coincide is preferred. The piston-type piercing rod in the structure is slidably provided in the structure, and is positioned between the sliding surfaces at a position where piercing of the wall of the sealed container is completed by the propellant impact force. A structure provided with a ring to help prevent leakage of the removed fluid is preferable. Further, the hydraulic device can be operated automatically or manually.

[0008]

According to the present invention, a hammer (16) is provided.
Has a piston-type hollow piercing rod (12) that penetrates the target closed vessel wall (2) due to the impact force or the combustion pressure of the propellant (10), and in the piston-type piercing rod, Hollow part (13) for taking out the fluid in the target closed container
The hollow portion has a perforated rod formed on the outer wall of the target closed container.
A structure (3) having a structure leading to a fluid outlet (8) at a position where a hole is formed in (2), and a holder (6, 6) capable of attaching the structure to an outer wall of a target closed container. 7)
And the fluid in the target closed container (1) is taken out through the hollow portion of the perforated rod.

FIG. 1 shows a method of attaching the fluid extracting device of the present invention to a target closed container (1). That is, the fluid extracting device of the present invention is fixedly attached to the target closed container (1) by connecting the structures (3) and (4) with the set screw (6) and the spring (7), respectively. . Furthermore, container wall (2)
And packing (3), as shown in the figure.
Through (9), it is brought into close contact to prevent leakage of the liquid. Extraction outlet for extracting the extracted fluid in the structure (3)
There is (8).

The principle of the apparatus of the present invention will be described with reference to FIG. 1 by taking fluid extraction from a cylindrical closed container as an example. That is, it is a method of extracting only a chemical agent or a poison gas from a target closed container, for example, a method of extracting only a chemical agent or a poison gas from a poison gas ammunition composed of a chemical agent or a poison gas, an explosive and an ammunition. As a procedure, when the wall of the elastic body is thick (though unnecessary when the wall is thin), the surface of the wall of the elastic body is drilled to form a recess (21) as shown in the figure.

The structure of the apparatus for extracting harmful fluid from a closed container according to the present invention is shown in FIGS. 2, 3 and 4 by taking a fluid from a cylindrical closed container as an example. That is, the apparatus of the present invention is a diagram in which a structure (3) having a propellant-piston type piercing rod (12) slidably provided therein is mounted on a closed vessel wall (2). The invention will be described sequentially.

The structure (3) of the device according to the invention comprises, as shown, a cylindrical cavity in which a piston-type piercing rod slides.
(15), in which a propellant (10) is provided, and an igniter (14) is provided in the ceiling,
When (10) is ignited, explodes, and produces an impact force, the cylindrical piston (11) is rapidly pressed downward in the figure, and a piercing rod (12) provided below the cylindrical piston is pressed into the container wall (2). )
(See FIG. 4).

First, FIG. 2 shows a cross-sectional view of the structure of a propellant-piston device of the present invention suitable for a closed container having a relatively thin wall. The interior of the piercing rod (12) is hollow, which is a hole (13) for fluid removal. And
On the side surface of the structure (3), an outlet (8) for taking out the fluid is provided.

FIG. 3 shows one method for the case where the thickness of the closed vessel wall is large and it is difficult to pierce with the apparatus of the present invention.
(21) is made, and the thickness of the wall to be perforated is reduced, and then the apparatus of the present invention is applied.

FIG. 4 is a sectional view after the operation of the fluid extracting device of the present invention. Propellant combustion gas
(15) pushes the piston (11) at a high speed by the high pressure, and causes the hollow piercing rod (12) to penetrate the closed vessel wall (2). When the fluid in the closed vessel (1) is a pressurized gas, it can be taken out by its own pressure.

However, when the chemical agent or gas in the closed container is highly toxic, two sets of the fluid extraction device of the present invention are used to make two holes, thereby forming two holes.
It is preferred to use the apparatus of the present invention so that an inert gas is sent in from one side and a chemical or toxic gas is taken out from the other.

Further, when the toxic substance in the sealed container (1) is a liquid, two fluid extracting devices of the present invention are mounted on the upper and lower sides, activated from above and below, and inert gas is removed from above. The method of taking out the liquid from below while feeding it is adopted. Further, the inside of the container can be cleaned using the two ports. The toxic gas or liquid coming out of the outlet (8) is rendered harmless by a combustion method or a chemical treatment method.

FIG. 5 shows a method in which a striking force is applied to a steel piston head (17) by a dropping hammer (16) so that a piercing rod (12) having a hollow portion (13) penetrates through a closed vessel wall (2). 1 shows an example of a fluid extracting device according to the present invention. (18)
Is a hook for suspending the hammer, and (19) is a guide for the hammer.

Then, a hollow perforated rod (12) is placed in the closed container (2).
Is selected according to the properties of the liquid to be taken out and the strength of the container wall. Any of an explosive-piston method, a hammer strike method, and a hydraulic pressurization method can be used. In the case of a hammer strike method, a drop type (Fig. 5),
Any of a mechanical type and a manual type can be used. In the case of a highly toxic liquid, a propellant-piston system (FIG. 2 and the like) and a hydraulic pressurization system, which are easily operated remotely, are desirable.

Therefore, in the device for extracting liquid in a closed container according to the present invention, the hollow perforated rod (12) penetrates the target closed container wall (2), and the liquid inside the container (1) is removed from the hollow portion (13). The object to be taken out may be any gas or fluid liquid.

The diameter of the hollow perforated rod (12) can be selected according to the capacity of the closed container and the thickness of the container wall. When a large amount of liquid is contained, a perforated rod having a large diameter of the hollow hole (13) is required to complete the removal operation within a predetermined time. In order to pierce a thick container with a container wall (2), a corresponding strength of the piercing rod is required, which requires a piercing rod of large diameter.

By using the fluid take-out device of the present invention, it is possible to take out harmful liquids and gases from the target closed container without using a thick container wall or using a particularly large perforated rod. The diameter of the piercing rod of the device according to the invention is between 2 and 50
mm, the diameter of the hollow hole is 1 to 30 mm, and generally, the diameter of the perforated rod is 4 to 30 mm, and the diameter of the hollow hole is 3 to 20 mm.

The size and shape of the sealed container to which the device for removing fluid in a sealed container of the present invention can be applied are not particularly limited, but one condition is that a holder is attached. When removing the liquid, set the device of the present invention in advance so that the piercing rod is located below the container,
It is necessary to be able to change the position of the piercing rod after actuation.

There is no particular limitation on the thickness of the container wall to which the device for removing fluid from a closed container of the present invention can be applied. However,
For a container wall having a thickness of 10 mm or more, as shown in FIG. 3, it is preferable that the perforated portion is cut in advance to have an appropriate thickness.

The propellant used in combination with the propellant and the piston shown in FIGS. 1, 2, 3, and 4 is stable at room temperature, burns rapidly when ignited,
Those that generate gas are preferred. Examples of propellants that can be used in the device of the present invention include smokeless powder,
Black powder, various gas generating agents and the like can be used.
Although the amount of the propellant to be used is not particularly limited, it is usually used in the range of 0.1 to 100 g.

As the igniter (14) for igniting the propellant, either an electric igniter or a striking igniter can be used. As an example of the electric igniter, an igniter generally used in the field of pyrotechnics by a combination of a leg line, a heating bridge, an ignition ball, and an igniting agent can be used. Examples of the impact igniter include a gun detonator generally used in the pyrotechnic field. A commonly used device can be used as the hydraulic device.

In the case of the combined propellant-piston type, the liquid outlet (8) is attached to the side of the structure of the device of the present invention, and the inner surface hole is formed by a piercing rod after the device of the present invention is operated. To the hollow hole (13).

The propellant combustion chamber (15) is driven to a high pressure so that the piston is driven by the combustion pressure of the propellant so that the piercing rod (12) can penetrate the vessel wall (2). Therefore, the propellant combustion chamber (15) and the structures (3), (4) must be pressure-resistant. Combustion chamber structures can be designed from experience typically made of carbon steel and commonly used in the pyrotechnic field.

The moving distance of the piston is determined to be slightly longer than the thickness of the container wall (2). That is, it must penetrate the wall thickness of the closed container.

As an example of the fluid extracting device of the present invention, in the fluid extracting device of the present invention of the hammer impact type, the hammer (16) for hitting may be a drop type, a mechanical type, or a manual type. In the case of the drop type, the required hammer mass is changed depending on the thickness of the container wall (2), and is usually 0.5 to 20 kg.
Is suitable.

Further, as the hammer (16), a mechanical hammer, a piston type using compressed air or the like can be used.

When a highly toxic fluid is taken out by using the device for removing a fluid from a closed container according to the present invention, packing can be used at a necessary portion to prevent fluid leakage. Since the part requiring packing is circular, O-ring packing (20 in FIG. 4) can be used. The packing material for that is selected according to the properties of the fluid to be withdrawn. For example, Teflon, silicon rubber, or the like can be used.

The fluid port (8) is connected to an external conduit. The structure of this part is arbitrary, and it is sufficient that there is sufficient strength and there is no leakage. The connection method is preferably a screw-in method or a one-touch mounting method.

If the fluid to be removed is a liquid or the like and is pierced only at one location, if it is difficult to remove the fluid, a hole is made at another location in the target sealed container, for example, the elastic wall (2). That is, another fluid extracting device of the present invention is used, and attached to an elastic body, and simultaneously perforated. For example, a method is possible in which one is attached to the upper side and the other is attached to the lower side, and toxic liquid is completely driven out from the lower side while air or an inert gas is supplied from above.

Further, if necessary, a decomposing agent of a fluid can be sent in to detoxify the inside of the shell, and then can be taken out.
Furthermore, the liquid and gas extracted by the fluid extraction device of the present invention are burned in, for example, a high-temperature furnace to be detoxified. Alternatively, it can react with a decomposing agent to lose its function as a poison gas.

[0036]

The apparatus for extracting a fluid from a closed container according to the present invention has the following technical effects by the structure shown in the figure. That is, it was possible to operate reliably and to take out the fluid in the closed container without fail. In addition, it was possible to provide a device for extracting harmful fluid from a closed container which is safe to handle. Also,
It is possible to provide a device that does not leak harmful gas or liquid, requires a short time for withdrawal, and can dispose of a large number of harmful fluid-containing closed containers. An apparatus for extracting a harmful fluid from a closed container that can be safely processed with a low processing cost can be provided.

[Brief description of the drawings]

FIG. 1 is a cross-sectional side view showing the entire structure of a device for extracting a fluid from a closed container according to the present invention.

FIG. 2 is a cross-sectional side view schematically illustrating another example of the device for extracting a fluid from a closed container according to the present invention.

FIG. 3 is a cross-sectional side view schematically showing a state in which the apparatus for extracting a fluid from a closed container of the present invention is used in another type.

FIG. 4 is a cross-sectional side view showing the position of the piston piercing rod when the piercing rod penetrates the target closed container wall with an impact force and showing the function of the O-ring.

FIG. 5 is a cross-sectional view showing a structure of a device for extracting a fluid from a closed container of the present invention using an impact force of a hammer.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 target closed container 2 target closed container wall 3 structure (fluid take-out device of the present invention) 4 lower part of structure 6 set screw 7 spring 8 outlet for taking out fluid 9 packing 10 propellant 11 piston 12 hollow perforated rod 13 fluid Hollow part for taking out 14 Propellant igniter 15 Propellant combustion chamber 16 Hammer 17 Striking force receiving member 20 O-ring 21 Recess formed in closed container wall

Claims (5)

[Claims] 1. A piston-shaped hollow piercing rod which penetrates a target closed vessel wall by a hammer impact force, a propellant combustion pressure, or a pressure of a hydraulic device. A hollow portion for taking out a fluid in the target closed container, wherein the hollow portion has a structure in which a piercing rod communicates with a fluid outlet at a position where a hole is formed in an outer wall of the target closed container. Having a holder capable of attaching the structure to the outer wall of the target closed container,
An apparatus for extracting fluid from an airtight container for extracting a fluid in a target airtight container through a hollow portion of the perforated rod. 2. A piston-shaped piercing rod in the structure is slidably provided in the structure, and at a position where piercing of the wall of the closed container is completed by a propellant impact force, the fluid is evacuated. The fluid extraction device according to claim 1, wherein the position of the outlet pipe of the hollow portion is identical to the position of the outlet pipe of the structure. 3. A piston-shaped piercing rod in the structure is slidably provided in the structure, and the sliding surface is provided at a position where the wall of the closed container has been pierced by a propellant impact force. The fluid extracting device according to claim 1 or 2, wherein an O-ring is provided between the two and has a structure that helps to prevent the extracted fluid from leaking. 4. The fluid withdrawing device according to claim 1, wherein the hammer is a mechanical, dropping or manual hammer for hitting. 5. The fluid extracting device according to claim 1, wherein the hydraulic device is an automatic or manual hydraulic device that applies pressure.