KR20110090153A - Pressure vessel - Google Patents

Abstract

PURPOSE: A pressurizing container including the inner pressure applied to an inside bladder is provided to manufacture the pressurizing container with an economic material including a polymer plastic bag and a spun-bonded olefin material. CONSTITUTION: A pressurizing container includes a sealing body, and an inside bladder. The sealing body(12) is manufactured with a spun-bonded olefin material. The inside bladder(14) is manufactured with a sealable polymer plastic bag. The inner pressure is applied to the inside bladder to insert the inside bladder into an internal space of the sealing body.

Description

Pressure vessel

The present invention is a flexible, gaseous, liquid permeable encapsulant having a closed access opening in the interior cavity and closure with an inexpensive material such as an envelope of a sealable polymer plastic bag and a spun bonded olefin material. A pressure vessel comprising a containment envelope.

At the urging of organizations like the International Air Transport Association (IATA), countries around the world are adopting international standards for the packaging of dangerous goods for transportation. These international standards under the International Civil Aviation Organization (ICAO) require that dangerous goods be transported in pressure vessels. A current state-of-the-art pressure vessel is represented by US Patent No. 5,167,344 to Saf-T-Pak Inc., December, 1992. The pressure vessel is threaded to an anchoring collar with a mating thread and an annular collar extending outward and downward from the sidewall adjacent the top rim. Has an outer surface. As described, the threaded connection is protected from contraction of the container sidewalls, which necessarily results when the container is exposed to pressure differentials.

However, the conventional Saf-T-Pak Inc. has a problem that the cost is excessively increased as a large amount of goods transported annually according to the standards of the International Air Transport Fair. Could.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and is to provide a low-cost pressure vessel by forming a low-cost material such as an envelope of a sealable polymer plastic bag and a spun bonded olefin material.

In order to achieve the above object, the present invention provides a pressure vessel, the internal cavity and access to accommodate a flexible gas, a liquid permeable encapsulation having an access opening closed through the internal cavity and the closure, and an item covered with a closed closure. And a separate, flexible gas, liquid-sealed inner bladder having an opening, wherein the closure is formed such that the closure that is kept sealed is dimensionally stable even at the maximum pressure difference, and the bladder is The inner bladder, which is applied in the inner cavity of the suture and is positioned within the inner cavity of the suture, generates a pressure difference exceeding an external pressure, the inner bladder being larger than the outer of the suture that is larger than the inner cavity of the suture. Expands and the internal bladder is placed in compression within the internal cavity of the suture while the suture is in tension. It can form a pressure vessel containing the pressure acting on the bladder deosang.

In this case, the encapsulation may be formed of a spunbonded olefin material, and the inner bladder may be formed of a sealable polymer plastic bag.

The present invention as described above is an effect that can provide a low-cost pressure vessel by forming a pressure vessel with a low-cost material, such as an envelope of a sealable polymer plastic bag and a spun bonded olefin material (envelope) There is.

1 is an elevational view of the side of a pressure vessel component assembled in accordance with the teachings of the present invention.
FIG. 2 shows a partial cross-sectional perspective view of a pressure vessel assembled in accordance with the techniques of the present invention out of the component shown in FIG. 1. FIG.
3 shows a partial cross-sectional perspective view of the pressure vessel depicted in FIG. 2 under a pressure differential;
4 shows a cross section of FIG. 3;

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Before describing the present invention, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout the specification.

In addition, the pressure vessel described in the present invention is generally indicated by reference numeral 10 and will be described with reference to the drawings shown.

As shown in FIG. 1, the pressure vessel 10 has two main parts, a suture 12 and an inner bladder 14. The suture 12 is preferably made of a spunbonded olefin material, if possible.

In addition, what specific material the suture 12 is made of is not as important as the properties that the suture 12 should have, and the suture 12 must be made of a flexible material and thereby the inner bladder. It can match the shape of (14).

This is to ensure that the suture 12 must be dimensionally stable at the maximum intended pressure differential, thereby allowing the inner bladder 14 to be efficiently trapped.

In addition, since no fluid barrier is allowed between the enclosure 12 and the inner bladder 14, the enclosure 12 should be formed so that gas and liquid can be hermetically sealed.

In addition, as shown in FIG. 2, the suture 12 is formed by forming an internal cavity 16.

1, the suture 12 is configured by forming an access opening 18 into an inner cavity 16 that is closed by a closure flap 20, the inner bladder ( 14 is preferably formed from a polymeric plastic material and made into a closed closure, whereby several polymeric plastic bags are made commercially available.

At this time, the specific material outside the inner bladder 14 is less important than the property that the inner bladder 14 must have.

The inner bladder 14 must be flexible and hermetically formed because the inner bladder 14 repeats expansion and contraction with pressure in a balloon-like manner.

In addition, the inner bladder 14 should be waterproof to prevent any dangerous liquid contained therein from leaking. This same property applies to cost effective rubber bladder only when high sealing strength is required.

In addition, as shown in FIG. 2, the inner bladder 14 is formed by forming an inner cavity 22.

This is because, as shown in FIG. 1, an access opening 24 is provided into the inner cavity 22. At this time, the access opening 24 is configured to be closed with a closure flap 26.

As above, the particular inner bladder 14 shown is a commercially available polymer plastic bag having a sealed closure, which polymer closure bag 26 and the peripheral edge 28 of the access opening 24. An adhesive (not shown) is thus provided, and the backer strips 30, 32 are removed such that the closure flap 26 is sealable along the peripheral edge 28.

2 shows how the inner bladder 14 is applied within the inner cavity 16 of the suture 12. At this time, as shown in FIG. 4, the inner bladder 14 is the internal cavity of the suture 12 in the state where the outer foot of the suture 12 is fully extended for reasons to be described more fully with regard to the method of use. It is important that it is larger than (16).

How to use the pressure vessel 10 as described above will be described as follows with reference to FIGS.

The pressure vessel 10 is designed to maintain pressure closure on dangerous goods and in this case is a diagnostic specimen 34. First, as shown in FIG. 1, the diagnostic specimen 34 is placed into the inner cavity 22 of the flexible gas, liquid hermetic inner bladder 14. The access opening 24 into the inner cavity 22 is then sealed with a closure flap 26. Second, as shown in FIG. 2, the inner bladder 14 is placed into the inner cavity 16 of the flexible gas, liquid hermetically sealed enclosure 12. And, when the inner bladder is in the fully extended state, the access opening 18 into the inner cavity 16 is then closed with a closure flap 20.

However, it should be noted that, as shown in FIG. 3, the inner bladder 14 may expand to the extent allowed by the suture 12 when under pressure.

In addition, as shown in FIG. 4, various acting forces are shown on the pressure vessel 10.

In detail, the external force generated by the internal pressure is shown by arrow 36, and the internal force generated by the external pressure and the restriction by the suture 12 are represented by arrow 38, and the suture The tensile force acting on sieve 12 is indicated by the facing arrow 40.

Accordingly, the external force 36 generated by the internal pressure compresses the inner bladder 14 against the suture 12, and the flexible suture 12 follows the shape of the inner bladder 14. . This eliminates tensile strain, which is inevitably present on the inner bladder 14 when the suture is rigid, and the suture 12 is in tension, as indicated by arrow 40. It should be noted that

For this reason, the suture 12 must have a tensile stress that can be maintained dimensionally stable at the maximum intended pressure differential.

It will be apparent to those skilled in the art that the present invention has applications beyond the field of pressure vessels used for the transportation of dangerous goods, as described above.

In addition, the technology of the present invention encompasses all of its applications in meeting practical shipping limitations. For example, it becomes possible to assemble large folding and easily transportable for sealing liquids or gases in remote locations. Those skilled in the art should understand that such storage tanks may be shipped in a relatively small state, even when set for use, and that changes may be made in the illustrated embodiments without departing from the spirit and scope of the invention as defined in the claims. something to do.

Description of the Related Art [0002]
10: pressure vessel 12: suture
14: Internal bladder 16, 22: Internal cavity
18: opening 24: access opening
26: closure flap

Claims (3)

In a pressure vessel,
Flexible gas, liquid permeable sutures with access openings closed through internal cavities and closures,
It consists of a separate, flexible gas and liquid hermetic internal bladder with internal cavities and access openings for receiving items covered by a closed closure,
The suture is formed such that the closure that is kept sealed is kept dimensionally stable even at the maximum pressure difference,
The bladder is applied in the inner cavity of the suture, and the outer bladder is larger than the inner cavity of the suture when the inner bladder located in the inner cavity of the suture produces a pressure difference that exceeds the outer pressure. Wherein the inner bladder is expanded and includes an internal pressure acting on the inner bladder to force the inner bladder to compress in the inner cavity of the suture while the suture is in tension.
The method according to claim 1,
And the suture is formed of a spunbonded olefin material.
The method according to claim 1,
And the inner bladder is formed from a sealable polymer plastic bag.

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