JPH0232960Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to an emergency treatment device for high-pressure gas containers.

``Purpose of the invention'' In a high-pressure gas container filled with a highly toxic gas used in the semiconductor manufacturing process, such as silane or arsine, if the filled gas blows out due to a malfunction or breakage of a valve, conventional methods prevent the gas from blowing out. If they couldn't stop it, they would have no choice but to let it erupt, and if it was indoors, the only thing they could do was to improve ventilation and evacuate.

However, it is extremely dangerous to leave the toxic gas emitted, and ejection of the gas, especially in a laboratory or the like with poor ventilation, may lead to an unexpected disaster.

In view of these circumstances, the purpose of the present invention is to provide an emergency treatment tool that can safely treat the above-mentioned gas ejected from a high-pressure gas container due to a malfunction or breakage of a valve. This is what I did.

"Means for Achieving the Purpose" The high-pressure gas container emergency treatment device of the present invention includes a balloon having an opening, a fixing part provided at the periphery of the opening, and an airtight part provided on the circumference of the balloon. Consisting of a globe protruding inward from the balloon and a gas processing section connected in communication with the inside of the balloon, the gas ejected from the valve section of the high-pressure gas container is treated and rendered harmless. In addition, the valve portion can be repaired using gloves.

"Embodiment" Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows a side view of the high-pressure gas container of this embodiment in a state in which the emergency treatment tool is used, and reference numeral 1 designates the high-pressure gas container. At the upper part of this high pressure gas container 1, a valve part 2 of the high pressure gas container 1 is provided.
The emergency treatment equipment 3 is airtightly attached.

This emergency treatment tool 3 includes a bag-shaped (spherical when inflated) balloon part 5 having a circular opening 4, a fixing part 6 provided on the periphery of the opening 4, and a fixing part 6 provided on the periphery of the balloon part 5. A pair of gloves 7, 7 provided and protruding inward of the balloon section 5, a processing section 8 installed in communication with the inside of the balloon section 5, and a safety valve 9 attached to the circumferential surface of the balloon section 5. It is composed of. Further, reference numeral 10 denotes a support that supports the high-pressure gas container 1 so that it does not fall down.

The balloon portion 5 is formed from a sheet of a transparent and flexible material such as polyethylene resin or polypropylene resin. The internal volume of this balloon part 5 is determined according to the gas capacity of the high pressure gas container 1 to which this emergency treatment tool 3 is applied, and if it is too small, it will not be possible to sufficiently stop the gas that blows out.
On the other hand, if it is too large, the balloon portion 5 will expand too much, making it difficult to operate the valve portion 2 by inserting both hands into the gloves 7, 7 inside the balloon portion 5.

The fixing part 6 has three ring tubes 11a.
A cylindrical portion 11 formed of coaxially connected ring tubes 11a, and a check valve 12 for each of the ring tubes 11a.
The gas supply section 13 is connected to the check valve 1 through the gas supply section 13.
By supplying gas to each ring tube 11a through 2..., each ring tube 11a...
is inflated to reduce the inner diameter of the cylindrical portion 11, and the upper part of the high-pressure gas container 1 is tightened to fix the emergency treatment tool 3 to the high-pressure gas container 1.

As shown in FIG. 2, the ring tubes 11a... are formed integrally with the balloon part 5, and each ring tube 11a... has an independent airtight structure. The aforementioned check valves 12 are attached to the outer circumferential surfaces of the valves 11a. These check valves 12... regulate the flow of gas supplied from the gas supply section 13, and allow the flow from the gas supply section 13 to the ring tube 11a... and prevent the flow in the opposite direction. It is being done. And the above check valve 1
The gas introduction sides of the two gas inlets are both connected to a flow divider 15 via pipes 14, and further, this flow divider 15 is connected to the gas supply section 13 via a pipe 16.

As shown in FIG.
is stretched. This rubber sheet 17 is for increasing the adhesion between the inner circumferential surface of the cylindrical portion 11 and the outer circumferential surface of the high-pressure gas container 1, and is preferably made of soft rubber such as butadiene rubber or urethane rubber. used.

The gas supply section 13 has a carbon dioxide gas cartridge therein, and when the carbon dioxide gas cartridge is opened, it supplies high pressure carbon dioxide to the ring tubes 11a. This carbon dioxide gas cartridge is a commercially available one that has traditionally been used as a buoyancy adjustment device for diving.
It is opened by punching a hole in the mouth of the cylindrical cartridge.

The gloves 7, 7 are made of the same material as the balloon part 5, and are flexible gloves into which a hand can be inserted, and the parts of the gloves 7, 7 that correspond to the palms are anti-slip. It is desirable that the As shown in FIG. 1, these gloves 7, 7 are stuck to the openings 7a, 7a formed in the balloon part 5 with their opening side ends protruded inward from the balloon part 5. Fixed. The attachment device for these gloves 7, 7 to the balloon part 5 is determined by considering the height of the balloon part 5 from the ground when this emergency treatment equipment 3 is attached to the high pressure gas container 1, the height of the person, etc. be done.

The processing section 8 includes an inlet pipe 18 and an outlet pipe 19.
It consists of a plastic bag 20 into which a gas is inserted and a processing agent sealed inside the bag, and the processing agent adsorbs the harmful gases flowing in from the introduction pipe 18 and renders them harmless. be. In this processing section 8, the introduction pipe 18 is connected to the circumference of the balloon section 5 via a pipe 21 and a screw 22, and the introduction pipe 18 and the pipe 21 are
It can be easily replaced by attaching and detaching.

The most appropriate treatment agent is selected depending on the type of harmful gas, such as one that adsorbs and fixes it using the oxidizing power of FeCl ₃ , one that adsorbs and fixes it using alkali and an oxidizing agent, or one that adsorbs and removes it using activated carbon. is used. And 20 bags
The amount of processing agent sealed therein is determined in consideration of the gas content of the high-pressure gas container 1, the gas processing ability of the processing agent, and the replaceability of the processing section 8.

The safety valve 9 is attached to the circumferential surface of the balloon part 5 so as to communicate with the inside of the balloon part 5, and when the pressure in the balloon part 5 rises to a predetermined value or higher, a spare bulb connected to this safety valve (Fig. (not shown), and the balloon part 5
This is to prevent damage to the product.

The support tool 10 includes an annular support ring 23 and four legs 24 attached to the support ring so as to be expandable.
It consists of. The support ring 23 is connected by a semi-circular arc-shaped member with a flywheel 25, and the opposite end of the flywheel 25 is fixed with a flywheel screw 26. This support 10 is provided to create a space around the high-pressure gas container 1 for the balloon portion 5 to inflate when the emergency treatment tool 3 is attached to the high-pressure gas container 1.

Next, the method of use and operation of the high-pressure gas container emergency treatment tool 3 constructed as described above will be explained.

This emergency treatment tool 3 is usually folded and packed into a small package, and when a gas blowout accident occurs due to a malfunction in the valve part 2 of a high-pressure gas container, the tools necessary to repair the valve part 2 can be stored in the high-pressure gas container. Place it on the top of the container 1, quickly expand the balloon part 5, and cover the valve part 2. Next, the cylindrical part 1 of the fixed part 6
1 at the upper position of the high-pressure gas container 1, the carbon dioxide gas cartridge of the gas supply section 13 is opened, and carbon dioxide gas is blown into each ring tube 11a.
Then, each ring tube 11a... expands and tightens the gas container 1, and the emergency treatment tool 3 is firmly fixed to the gas container 1 in a state where the valve portion 2 is accommodated in an airtight manner. Once ring tube 11a...
When carbon dioxide gas is blown into the ring tube, this carbon dioxide gas is prevented from flowing out from the ring tube 11a by the check valve 12, and the ring tube 11a is inflated until the carbon dioxide gas is removed by directly operating the check valve 12. is maintained.

Here, both hands are inserted into the gloves 7, 7, and the valve part 2 is repaired using the tools placed on the container 1 in advance. During repairs, if you think that the effectiveness of the treatment agent has decreased, close the screw tank 22, remove the pipe 21 from the introduction pipe 18,
Then, replace the processing unit 8 with a new one, open the screw stock 22 again, and continue the repair.

In the emergency treatment device 3 of the high-pressure gas container of the above embodiment having such a configuration, when dangerous poisonous gas or flammable gas blows out, it can be sealed in the balloon portion 5 with almost no leakage. , processing section 8
The valve part 2 can be repaired while making the gas harmless. Therefore, it is possible to safely deal with gas ejection caused by a failure in the valve portion 2 of the high-pressure gas container 1, etc., which conventionally had no means to deal with.

Moreover, this emergency treatment tool 3 is small and lightweight in a folded state, and is easy to transport. moreover,
Since the cylinder part 11 can be firmly fixed simply by placing it over the gas container 1 and inflating it, a prompt response to an accident is possible.

Furthermore, this emergency treatment tool 3 has a relatively simple configuration and is inexpensive to manufacture, so the cost required for deployment is low.

Note that the configuration of the emergency treatment tool of the present invention is not limited to the above embodiment, and various other modifications are possible. For example, the fixing part is composed of a magic band and a ring tube formed integrally with the magic band, and after the balloon part is loosely fastened to the high-pressure gas container 1 with the magic band, it is firmly fixed by supplying carbon dioxide gas to the ring tube. A configuration in which the emergency treatment tool 3 is tightened is also possible, and in such a case, the emergency treatment tool 3 can be attached and detached more easily.

It is also possible to use a small manual pump as the gas supply unit 13, and in this case, there is no need to replace the carbon dioxide gas cartridge after using the emergency treatment tool 3.

Furthermore, as shown in FIG. 3, a configuration in which a water pump 28 is attached to the outlet pipe 19 of the processing section 8 via a pipe 27 is also possible, and in this case,
The gas ejected within the balloon section 5 can be forcibly guided to the processing section 8, and a part of the gas that has not been processed at the processing section 8 can be dissolved in water and discarded inside the water pump 28. can be achieved, resulting in higher safety.

Furthermore, a configuration in which a plurality of balloon parts 5 are connected in series is also possible, and in this case, the actual capacity of the balloon part 5 can be increased several times, making it possible to process larger-capacity high-pressure gas containers. It can be carried out.

``Effects of the invention'' The high-pressure gas container emergency treatment device of the invention consists of a balloon having an opening, a fixing part provided around the opening around the opening, and a fixing part provided airtight on the circumferential surface of the balloon. Since it is composed of an inwardly protruding globe and a gas processing section connected in communication with the inside of the balloon, it has the following excellent effects.

When dangerous gas blows out from a high-pressure gas container, it is sealed inside the balloon with almost no leakage, the gas is rendered harmless in the processing section, and the valve is repaired by inserting your hand into the glove. This makes it possible to safely deal with gas blowouts due to valve malfunction.

Furthermore, this emergency treatment tool is small and lightweight when folded, making it easy to transport. In addition, since it is simply placed over a high-pressure gas container and fixed with a fixing part, it is possible to quickly respond to a gas blowout accident.

Furthermore, this emergency treatment device has a relatively simple construction and is inexpensive to manufacture, so it is inexpensive to deploy.

[Brief explanation of drawings]

Fig. 1 is a side view showing an embodiment of the emergency treatment device for a high-pressure gas container of the present invention attached to a high-pressure gas container; Fig. 2 is a partially cutaway side view of the main part of Fig. 1; The figure is a side view showing the main parts of another embodiment. 1... High pressure gas container, 2... Valve part, 3...
Emergency treatment equipment, 4... Opening, 5... Balloon part, 6
...Fixing part, 7...Glove, 8...Processing part.

Claims (1)

[Scope of utility model registration request] a balloon having an opening; a fixing part having the opening on a peripheral edge and removably fixing the balloon to the high-pressure gas container so that the valve part of the high-pressure gas container is hermetically housed within the balloon; a glove that is airtightly provided on the circumferential surface of the balloon and protrudes inward from the balloon;
A high-pressure gas container emergency treatment tool comprising a gas processing section connected in communication with the inside of the balloon.