KR101756437B1 - Gas container with safety device - Google Patents

Gas container with safety device Download PDF

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Publication number
KR101756437B1
KR101756437B1 KR1020150091573A KR20150091573A KR101756437B1 KR 101756437 B1 KR101756437 B1 KR 101756437B1 KR 1020150091573 A KR1020150091573 A KR 1020150091573A KR 20150091573 A KR20150091573 A KR 20150091573A KR 101756437 B1 KR101756437 B1 KR 101756437B1
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KR
South Korea
Prior art keywords
gas
gas container
container
valve body
overpressure prevention
Prior art date
Application number
KR1020150091573A
Other languages
Korean (ko)
Other versions
KR20170001493A (en
Inventor
허률
Original Assignee
허률
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Publication date
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Priority to KR1020150091573A priority Critical patent/KR101756437B1/en
Publication of KR20170001493A publication Critical patent/KR20170001493A/en
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Publication of KR101756437B1 publication Critical patent/KR101756437B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0332—Safety valves or pressure relief valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/04—Reducing risks and environmental impact
    • F17C2260/042—Reducing risk of explosion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/07—Applications for household use
    • F17C2270/0709—Camping gas

Abstract

The present invention is characterized in that, when the pressure inside the gas container rises, the flame is firstly removed and then the internal pressure of the gas container is reduced, thereby preventing a fire or an explosion accident, .
The gas cylinder equipped with the safety device of the present invention comprises a gas container (100); A mounting cup (200) provided at an upper portion of the gas container (100) and expanding upward when the pressure inside the gas container (100) rises; A valve body 300 fixed to the mounting cup 200 for moving gas contained in the gas container 100 upward; A stem 400 mounted on the valve body 300 to discharge the gas to the outside; An overpressure prevention pipe (500) disposed inside the gas container (100), a lower end fixed to a lower portion of the gas container (100) and opened downward; Wherein the overpressure prevention tube 500 is opened when the mounting cup 200 is inflated upward so that an overpressure for discharging the gas inside the gas container 100 to the outside of the gas container 100 A prevention hole 521 is formed.

Description

[0001] Gas container with safety device [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a gas cylinder having a safety device, and more particularly, to a gas cylinder equipped with a safety device capable of preventing a gas container from exploding when a pressure in a gas cylinder becomes high due to an external temperature rise.

Generally, the portable gas container includes a portable butane gas container used for a portable gas range filled with a butane gas mixture mainly composed of butane gas as a main raw material of liquefied petroleum gas, a hair spray, a pesticide, a lacquer spray using a liquefied petroleum gas as a propellant Such a portable gas container ejects the contents to the outside by using the gas pressure in the container. When the contents are filled, a pressure of a certain level or more always acts in the container.

When the butane gas container receives high heat from the surroundings during distribution or use, the pressure of the liquefied gas inside the butane gas container rises and explodes. In particular, in the case of the butane gas container used for the portable gas stove, Do not observe and use it irregularly. If the internal pressure is increased due to high temperature or above certain pressure, the container may be deformed or damaged, and in case of severe explosion, it may explode.

Of course, various safety valves have been developed in order to prevent such explosion, but they have been avoided due to the complicated configuration and cost increase.

Korea Patent No. 10-1281536

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a gas container which is capable of preventing a fire or an explosion accident, And it is an object of the present invention to provide a gas cylinder equipped with a safety device that can be used.

In order to achieve the above object, a gas container provided with a safety device of the present invention comprises: a gas container (100); A mounting cup (200) provided at an upper portion of the gas container (100) and expanding upward when the pressure inside the gas container (100) rises; A valve body 300 fixed to the mounting cup 200 for moving gas contained in the gas container 100 upward; A stem 400 mounted on the valve body 300 to discharge the gas to the outside; An overpressure prevention pipe (500) disposed inside the gas container (100), a lower end fixed to a lower portion of the gas container (100) and opened downward; Wherein the overpressure prevention tube 500 is opened when the mounting cup 200 is inflated upward so that an overpressure for discharging the gas inside the gas container 100 to the outside of the gas container 100 A prevention hole 521 is formed.

The valve body 300 includes a connection part 310 in which the stem 400 is inserted at an upper end thereof and the overpressure prevention pipe 500 is inserted at a lower end thereof; A gas inflow part 320 protruded laterally from a lower end of the connection part 310 to move the gas inside the gas container 100 to the stem 400; .

The overpressure prevention pipe 500 is formed with a connection hole 511 connected to the gas inlet 320 so that the gas flowing through the gas inlet 320 is moved to the stem 400 A passage portion 510; The overpressure prevention hole 521 is formed on the outer side of the first passage part 510 and is cut off from the first passage part 510. The lower end of the overpressure prevention hole 521 is connected to the lower part of the gas container 100 An open second passage portion 520; The connection hole 511 is connected to the gas inlet 320 and the overpressure prevention hole 521 is cut off by the connection part 310 and the mounting cup 200 is moved upward The connection hole 511 is separated from the gas inlet 320 due to the rise of the valve body 300. When the valve body 300 further rises after the valve body 300 is inflated, The hole 521 is opened so that the gas is discharged to the lower portion of the gas container 100.

The gas cylinder having the safety device of the present invention as described above has the following effects.

When the pressure inside the gas container 100 rises, the connection hole 511 is firstly cut off first to remove the flame, and then the overpressure prevention hole 521 is opened to open the gas container 100 ), The effect of preventing a fire or an explosion accident can be obtained.

Particularly, by first removing the flame, the risk that the fire is diffused by the gas discharged thereafter is reduced, and as a result, an accident such as an image is more strongly prevented.

In addition, since the construction is simple, the manufacturing cost is lower than that of the gas cylinder equipped with the conventional safety device, and the productivity is improved.

FIG. 1 is a sectional view of a gas cylinder provided with a safety device according to an embodiment of the present invention,
FIG. 2 is a sectional view showing a primary operation state of a gas cylinder provided with a safety device according to an embodiment of the present invention, FIG.
FIG. 3 and FIG. 4 are sectional views showing a secondary operation state of the gas cylinder provided with the safety device according to the embodiment of the present invention.

FIG. 1 is a sectional view of a gas cylinder provided with a safety device according to an embodiment of the present invention, FIG. 2 is a sectional view showing a primary operation state of a gas cylinder provided with a safety device according to an embodiment of the present invention, Sectional view illustrating a secondary operation state of a gas cylinder provided with a safety device according to an embodiment of the present invention.

1 to 4, a gas container provided with a safety device according to an embodiment of the present invention includes a gas container 100, a mounting cup 200, a valve body 300, a stem 400, Prevention pipe 500.

The gas container 100 is a container corresponding to general portable butane gas. Butane gas, which is a petroleum gas which is liquefied when air is pressurized at a room temperature of about 5 atm, is accommodated therein.

In this gas container 100, when the ambient temperature rises, the gas in the liquefied state is vaporized and expanded.

The mounting cup 200 covers the upper portion of the gas container 100 and seals the gas therein so that the gas does not escape to the outside. The mounting cup 200 is generally applied to portable butane gas in general.

Specifically, as shown in FIG. 1, the mounting cup 200 has a center portion protruding upward, and an upper end of the protruded central portion is opened, so that the valve body 300, which will be described later, is inserted and fixed.

In addition, the rim of the mounting cup 200 is seam-joined with the rim of the gas container 100.

Here, "seaming" refers to a technique of joining an upper lid and a lower lid to a body in the production of an article such as an aluminum can, which is a joining operation in which thin aluminum members are folded, folded, .

The rim of the mounting cup 200 is coupled to the outside of the gas container 100 in a state where the rim overlaps with the rim of the gas container 100.

In addition, an expansion part 210 bent downward in a downward direction is formed near the rim of the mounting cup 200.

When the internal pressure of the gas container 100 is maintained at about 5 atmospheres, the expanding portion 210 is concavely bent downward. When the internal pressure of the gas container 100 is increased due to an increase in external temperature, When it rises, it moves upward and expands.

The upper end of the valve body 300 is inserted into and fixed to the center of the mounting cup 200 to move the gas accommodated in the gas container 100 to the stem 400 to be described later Functioning as a passageway.

More specifically, the valve body 300 includes a connection part 310 and a gas inflow part 320.

The connection part 310 is in the shape of a tube that passes through the upper and lower parts. The stem 400 is inserted into the upper part and the overpressure prevention tube 500 to be described later is inserted into the lower part.

The connection unit 310 is vertically movably coupled along the overpressure prevention pipe 500 and a sealing member 311 made of a rubber material is provided on the inner peripheral surface of the lower end of the connection unit 310.

The gas inlet 320 is formed in a tubular shape protruding upwards from the lower end of the connection part 310 so as to function as a passage for moving the gas inside the gas container 100 to the stem 400 .

The stem 400 is vertically movably mounted on the upper end of the connection part 310 and is elastically supported upward by a spring 450.

When the pressure is released, the stem 400 is lifted by the spring to block the hole. In this case, as shown in FIG.

The overpressure prevention pipe 500 includes a first passage portion 510 and a second passage portion 520 and is formed in a tubular shape protruding upward from a lower portion of the gas container 100.

The first passage portion 510 is an upwardly opened passage and is inserted into the connection portion 310 and has a connecting hole 511 formed in the side portion thereof to be connected to the gas inlet portion 320, (320) to the stem (400).

The second passage portion 520 is extended downwardly from the first passage portion 510 and is blocked from being connected to the first passage portion 510 and is opened downward.

An overpressure prevention hole 521 is formed on the outer side of the second passage portion 520 and a lower end thereof is coupled to the lower portion of the gas container 100 to be opened to the outside.

Here, the overpressure prevention hole 521 is normally in contact with the sealing member of the connection part 310 and is shut off, and the inner pressure of the gas container 100 rises and the mounting cup 200 is expanded upward And the gas inside the gas container 100 is discharged to the outside through the lower portion of the gas container 100.

As shown in FIG. 1, when the ambient temperature is maintained at a normal temperature, the connection hole 511 is connected to the gas inlet (not shown) 320 to move the gas contained in the gas container 100 to the stem 400 through the first passage part 510 and the connection part 310. The overpressure prevention hole 521 is formed in the connection part 310, The sealing member 311 of the sealing member 310 is cut off.

2, when the inner pressure of the gas container 100 is increased due to the influence of the surrounding environment, the expansion part 210 of the mounting cup 200 moves upward while expanding Thereby causing the valve body 300 to rise together.

The valve body 300 is moved upward along the overpressure prevention pipe 500 so that the connection hole 511 is separated from the gas inlet 320 and is cut off through the stem 400 As the gas can not be discharged, the surrounding flames are removed and the risk of fire and explosion is primarily blocked.

 3, when the internal pressure of the gas container 100 continues to rise and the valve body 300 further rises, the connection portion 310 is moved upward to the upper portion of the overpressure prevention hole 521 The overpressure prevention hole 521 is slightly opened and the gas contained in the gas container 100 is discharged to the outside of the gas container 100 through the overpressure prevention hole 521. [

4, when the internal pressure is continuously applied, the valve body 300 is maximally raised, the overpressure prevention hole 521 is opened to the maximum, and a large amount of air is supplied through the overpressure prevention pipe 50, So that the internal pressure of the gas container 100 is lowered.

Here, since the ambient fires generated by the gas are already turned off, the internal pressure is reduced by discharging the gas safely without any additional fire risk.

As described above, when the pressure inside the gas container 100 rises, the gas container having the safety device according to the embodiment of the present invention firstly blocks the connection hole 511 to remove the flame first, Then, by opening the overpressure prevention hole 521 to reduce the internal pressure of the gas container 100, an effect of preventing a fire or an explosion accident can be prevented.

Particularly, by first removing the flame, the risk that the fire is diffused by the gas discharged thereafter is reduced, and as a result, an accident such as an image is more strongly prevented.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims something to do.

100: Gas container 200: Mounting cup
210: expansion part 300: valve body
310: connection part 320: gas inlet part
400: Stem 500: Overpressure prevention pipe
510: first passage portion 510: connection hole
520: second passage portion 520: overpressure prevention ball

Claims (3)

A gas container (100);
A mounting cup (200) provided at an upper portion of the gas container (100) and expanding upward when the pressure inside the gas container (100) rises;
A valve body 300 fixed to the mounting cup 200 for moving gas contained in the gas container 100 upward;
A stem 400 mounted on the valve body 300 to discharge the gas to the outside;
An overpressure prevention pipe (500) disposed inside the gas container (100), a lower end fixed to a lower portion of the gas container (100) and opened downward; ≪ / RTI >
The overpressure prevention pipe 500 is provided with an overpressure prevention hole 521 for discharging the gas inside the gas container 100 to the outside of the gas container 100 when the mounting cup 200 is expanded upward, Is formed,
The valve body 300 includes a connection part 310 through which the stem 400 is inserted and the lower end of which is inserted with the overpressure prevention tube 500 and a connection part 310 protruding laterally from a lower end of the connection part 310 And a gas inlet (320) for moving the gas inside the gas container (100) to the stem (400)
The overpressure prevention pipe 500 is formed with a connection hole 511 to be connected to the gas inlet 320 so that the gas introduced through the gas inlet 320 flows into the stem 400, And an upper pressure preventing hole 521 is formed on the outer side of the first passage part 510 and a lower end of the gas passage 521 is formed on the lower side of the first passage part 510. [ And a second passage portion 520 opened to the lower portion of the main body 100,
The connection hole 511 is connected to the gas inlet 320 and the overpressure prevention hole 521 is blocked by the connection portion 310. When the mounting cup 200 is expanded upward The connection hole 511 is separated from the gas inlet 320 due to the rise of the valve body 300 and then the overpressure prevention hole 521 is opened when the valve body 300 is further raised. And the gas is discharged to the lower portion of the gas container (100).
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KR1020150091573A 2015-06-26 2015-06-26 Gas container with safety device KR101756437B1 (en)

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KR1020150091573A KR101756437B1 (en) 2015-06-26 2015-06-26 Gas container with safety device

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Application Number Priority Date Filing Date Title
KR1020150091573A KR101756437B1 (en) 2015-06-26 2015-06-26 Gas container with safety device

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KR20170001493A KR20170001493A (en) 2017-01-04
KR101756437B1 true KR101756437B1 (en) 2017-07-10

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102395105B1 (en) * 2021-08-18 2022-05-09 김영한 Safety device of butane gas canister

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101464493B1 (en) * 2013-10-25 2014-11-24 주식회사 대륙제관 Over pressure safety relief valve for portable gas container
KR200476903Y1 (en) * 2014-12-24 2015-04-16 최병석 Explosion-proof gas container

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101281536B1 (en) 2012-01-19 2013-07-19 주식회사 대륙제관 Over-pressure preventing safety relief valve for prtable gas container

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101464493B1 (en) * 2013-10-25 2014-11-24 주식회사 대륙제관 Over pressure safety relief valve for portable gas container
KR200476903Y1 (en) * 2014-12-24 2015-04-16 최병석 Explosion-proof gas container

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102395105B1 (en) * 2021-08-18 2022-05-09 김영한 Safety device of butane gas canister

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