KR20170030885A

KR20170030885A - Block apparatus emission of gas containers

Info

Publication number: KR20170030885A
Application number: KR1020150128356A
Authority: KR
Inventors: 김성민
Original assignee: 김성민
Priority date: 2015-09-10
Filing date: 2015-09-10
Publication date: 2017-03-20
Also published as: KR101731803B1

Abstract

Provided is a gas emission block apparatus of a gas container, comprising: an extended flow path which is formed on a gas flow path of a gas induction pipe to, when the temperature or the pressure in the gas container increases, let an expansion body close the gas flow path, to prevent more gas from being emitted, and to have a larger diameter than the diameter of the gas flow path; the expansion body which is formed on the extended flow path to have a greater diameter than the diameter of the gas flow path and a shorter diameter than the diameter of the extended flow path and to, when the temperature or the pressure in the gas container increases, expand and close the extended flow path without causing a disorder such as gas filling and gas emission; and a mounting cap which penetrates and is combined with the gas induction pipe on the end of the gas flow path to prevent the expansion body from being separated and letting gas pass through. Accordingly, the present invention can secure high safety, simple manufacturing, excellent assembly, high productivity, and superior economic feasibility.

Description

BACKGROUND OF THE INVENTION Field of the Invention [0001]

More particularly, the present invention relates to an apparatus and a method for controlling gas flow in a gas container, and more particularly, And a gas flow path in the gas induction pipe is closed so that the gas can be quickly shut off so that no further gas is discharged.

Generally, when cooking food such as meat, fish and vegetables in outdoor activities such as home, restaurant, camping, etc., portable gas can be easily portable and easy to use.

The portable gas range is equipped with a gas container filled with a combustible liquefied butane gas supplied to a burner portion of a portable gas range so as to generate a gas fire when cooking food.

The gas container refers to a gas container which is filled with liquefied petroleum gas (butane gas + butane gas) in a small (approximately 220 g to 450 g) gas container and uses the pressure difference between the gas pressure in the gas container and the atmospheric pressure outside, And is designed to be spontaneously discharged, and to ignite and burn flames on the discharged gas.

On the other hand, the normal internal pressure of the gas container is about 4 to 5 kgf / ㎠ in case of the 220 g container and the regulated pressure is 13 kgf / ㎠, the burst pressure is 15 kgf / ㎠, Temperature is defined as about 50 ° C.

The possibility of explosion of the gas container is mostly occurring in cooking using the gas container. When the burner which is put on the portable gas range covers the gas container mounting portion of the gas range, the radiant heat of the flame rides on the bottom surface of the burner, And the gas container is heated by being transferred to the container, thereby causing the pressure inside the gas container to exceed the deformation pressure and reach the explosion limit.

On the other hand, the gas inside the actual gas container absorbs the heat inside the container during the process of changing from the liquid phase to the gaseous phase and causes the vaporization heat (evaporation latent heat) absorption reaction to be discharged to the outside. Rather, the temperature of the container is lowered, so that the gas container is not heated and exploded when normally used.

However, as described above, when the burner covers the gas container mounting portion and the heat of radiant heat transferred from the gas range flame is larger than the latent heat of vaporization, heat accumulates in the gas container to expand the pressure of the gas to the allowable pressure or higher of the gas container, A phenomenon that the container explodes occurs.

In order to solve the above-mentioned conventional problems, there has been proposed a technique for ensuring safety against explosion in the past. For example, Korean Patent Laid-Open No. 10-2002-0070913 (hereinafter referred to as Patent Document 1) A sealing device is lifted and the overpressure gas is discharged to the outside through the orifice to prevent the explosion of the pressure vessel. Has been proposed.

In addition, as disclosed in Korean Patent Laid-Open No. 10-2003-0032784 (hereinafter referred to as "Patent Document 2"), when the internal pressure of the aerosol container becomes higher than a certain pressure, Techniques such as an overpressure safety device in an aerosol container to prevent the risk of deformation and rupture by jetting have also been proposed.

Also, as disclosed in Korean Patent Laid-Open No. 10-2010-0123081 (hereinafter referred to as Patent Document 3), when overpressure is formed in the gas container, if the pressure is reached to a certain level, the overpressure gas is discharged to the outside of the gas container So that the explosion accident of the gas container due to the overpressure gas can be prevented in advance.

In addition, as disclosed in Korean Patent Laid-Open Publication No. 10-2014-0105690 (hereinafter referred to as Patent Document 4), during the stage of expanding the pressure inside the gas container, at a selected point before reaching the deformation pressure level A gas discharge blocking device of a new construction designed to prevent the explosion or the second fire from occurring by preventing the gas pressure in the gas container from rising by extinguishing the flame of the portable gas range by automatically shutting off gas discharge from the gas container, A technique similar to a gas container equipped with a discharge preventing device has been proposed.

Also, as disclosed in Korean Patent Laid-Open Publication No. 10-2015-0062377 (hereinafter referred to as "Patent Document 5"), at the end portion of the gas induction pipe located in the gas pipe, A valve structure including a movable valve that opens and closes the gas container is proposed, thereby preventing the gas container from exploding.

Korean Patent Publication No. 10-2002-0070913 Korean Patent Publication No. 10-2003-0032784 Korean Patent Publication No. 10-2010-0123081 Korean Patent Publication No. 10-2014-0105690 Korean Patent Publication No. 10-2015-0062377

However, Patent Documents 1 to 5 have a structure in which most of them include a spring and a valve body to open and close in response to a pressure change. This structure has a considerably complicated structure, and the assembly work and installation work are considerably cumbersome and inconvenient I have.

In addition, in the structure of the spring and the valve body having a complicated structure, operation is not accurately performed in the course of use after installation, and most of them are not practically applied due to malfunction or the like.

Furthermore, even when the initial butane gas is injected into the gas container, the filling efficiency is significantly lowered because the above-described malfunction of the spring and the valve body does not substantially achieve a satisfactory filling.

The main object of the present invention for solving the above-mentioned problems of the prior art is to inject gas easily due to a simple structure and to expand the inflator when a pressure higher than a set pressure due to a temperature rise inside the gas container is expanded, And the gas passage in the induction pipe is closed so that the gas can be quickly shut off so that no more gas is discharged.

Another object of the present invention is to make it possible to secure a large area of the gas flow path.

According to an aspect of the present invention, there is provided a method of manufacturing a gas valve, comprising: forming a gas passage through a gas induction pipe connected to a valve unit of a gas container, Wherein the shielding device comprises: a gas flow path of the gas guiding tube; an expansion flow path formed to have a diameter larger than the diameter of the gas flow path; The expansion valve has a larger diameter than the gas flow path on the expansion flow path and has a diameter smaller than that of the expansion flow path so that it does not cause a trouble when filling the gas and discharging the gas, sieve; And a mounting cap penetratingly coupled to the gas guide tube at an end of the gas channel so as to allow gas to pass therethrough while preventing the inflator from being separated.

The inflatable body is composed of a ball body which is flexible and whose outer surface is flexible and which is capable of shrinking and expanding, and an expansion material filled in the ball body so as to be inflated when a pressure higher than a set pressure due to a temperature rise in the gas container is generated.

The expansion material is a gas or a liquid.

Wherein the expansion channel includes a first expansion channel in which the expansion member is located and inflated when a pressure higher than a set pressure due to a temperature rise in the gas container is generated and a second expansion channel having a diameter larger than that of the first expansion channel, And is formed as a flow path.

A guide jaw is formed on the inner surface of the mounting cap at a predetermined interval, and the inner surface of the mounting cap and the inner surface of the second expansion passage are formed to have a chamfer ring.

In the present invention, since the gas is injected smoothly due to the simple structure, the inflator is expanded when a pressure higher than the set pressure due to the temperature rise in the gas container is expanded, and the gas flow path in the gas guiding tube is closed, So that it is possible to secure high safety. In addition, it is easy to manufacture and has excellent assemblability as well as high productivity and economic efficiency.

In addition, it is possible to secure a high-level safety by ensuring that the shielding area of the gas flow path is as wide as possible.

1 is a partially exploded perspective view for explaining the present invention,
Figure 2 is a cross-sectional view of the combined state according to Figure 1,
3 is a sectional view for explaining a use state according to FIG. 1,
4 is a partially enlarged cross-sectional view for explaining another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings. The present invention is not limited to the embodiments.

FIG. 1 is a partially exploded perspective view for explaining the present invention, FIG. 2 is a sectional view of the combined state according to FIG. 1, and FIG. 3 is a sectional view for explaining a state of use according to FIG.

As shown in the figure, a gas guide tube (not shown) having a gas passage 122 coupled to a known valve unit 110 of a gas container 100 to be filled with a necessary gas such as butane gas used for a conventional portable gas range 120 to prevent the gas from being discharged when a pressure higher than a set pressure due to a rise in the temperature inside the gas container 100 is generated after the gas is filled.

In the present invention, since the gas is injected smoothly due to the simple structure, the inflator is expanded when a pressure higher than the set pressure due to the temperature rise in the gas container is expanded, and the gas flow path in the gas guiding tube is closed, So that it can be quickly intercepted.

The shielding device 1 according to the present invention includes a gas flow path 122 of the gas induction pipe 120 and an expansion flow path 10 formed to have a diameter larger than the diameter of the gas flow path 122; The diameter of the expansion passage 10 is larger than the diameter of the expansion passage 10 and the diameter of the expansion passage 10 is larger than the diameter of the expansion passage 10, An expander (20) expanding when the pressure rises and closing the expansion passage (10); And a mounting cap penetratingly coupled to the end gas induction pipe 120 of the gas passage 122 so as to allow gas to pass therethrough while preventing the inflator 20 from being disengaged.

In other words, the present invention does not have a complicated additional structure but allows the gas flow path of the gas induction pipe to be filled smoothly without closing the gas flow path when the gas is filled, and in the process of discharging the gas, When the temperature in the gas container is raised or when a pressure higher than the set pressure is generated, the expansion body provided in the expansion passage of the gas passage is expanded to shut off the gas passage so that no more gas is discharged.

That is, when the gas is charged, the expansion member is positioned in the expansion passage having a diameter larger than the diameter of the gas passage, so that the gas filling into the gas container is smoothly performed without interference.

Specifically, when the gas is charged, the gas flowing into the gas passage of the gas induction pipe through the valve unit flows into the expansion passage. At this time, the expansion member pushes toward the mounting cap side by the inflow pressure of the gas, Through the penetrating mounting cap and into the gas container. This means that there is no mechanical failure or the like compared with the conventional safety means comprising a spring, a valve body, and the like, so that the battery can be quickly charged within a short time.

On the other hand, when the temperature in the gas container rises due to heat transfer to the gas container during the process of using the gas exhausted through the mounting cap, the expansion passage and the gas passage, or when a pressure higher than the set pressure occurs, The sieve expands and closes the expansion line.

That is, when the gas container is installed in the portable gas range and gas is to be used, the gas in the gas container flows into the expansion passage through the mounting cap, then flows through the expansion body, flows into the gas passage, Burning occurs.

As the temperature rises due to the heat being transferred to the gas container during the discharge of the gas, the pressure in the gas container rises instantaneously. In particular, the pressure rises above the set pressure, The expanding flow path is closed while expanding.

Accordingly, as the portable gas range is extinguished by the gas which is no longer discharged, the heat to the gas container is no longer transferred, and the pressure in the gas container is lowered again, so that the risk of explosion is eliminated do.

Thus, the present invention does not have an additional complicated structure but has a simple structure such as an expansion channel for providing the expansion body in the gas flow path of the gas induction tube and a mounting cap for preventing the expansion body from being detached, Not only simple but also easy installation can be achieved in a short period of time, as well as excellent conditions for economical efficiency as well as high safety.

The inflator (20) includes a ball body (22) having a flexible outer surface and capable of being shrunk and inflated, and a valve body (22) for inflating the inside of the ball body (24). At this time, the expanding material is a gas or liquid that contracts or expands against changes in temperature or pressure. That is, the liquid includes aniline, mercury, glycerin, benzene, water, and ethanol. The gas may be provided with helium, mercury, neon, nitrogen, etc. In addition to the above substances, Any known material that can be used may be applied.

In addition, the ball body may be made of a flexible material such as ordinary rubber, silicone, urethane or the like, and may be made of any known flexible material that can be shrunk or expanded against changes in temperature or pressure .

In other words, when the inflator is subjected to a temperature change or pressure change in the gas container due to the internal expansion material, that is, a pressure higher than the set pressure, the volume of the ball body is expanded as the inflation material in the ball body is activated And the expansion flow path is blocked while being closely attached to the inner side surface of the expansion flow path. So that the gas is prevented from being discharged any more.

As the portable gas range is extinguished due to the gas being not discharged after the expansion passage is shut off, the temperature and the pressure in the gas container are lowered again when the heat is no longer transferred to the gas container, The activated expansion material in the ball body is stabilized and the ball body is also contracted to a state before it is inflated, so that the gas can be smoothly discharged through the expansion passage.

In addition, it is preferable that the ball body is formed in the form of a ball which can be swollen to a maximum extent when shrinking or expanding, and can be quickly brought into contact with the expanding channel at the time of expansion. It is not limited to the ball shape but any shape corresponding to the gas flow path of the gas induction pipe may be applied.

The expansion flow path 10 includes a first expansion flow path 12 in which the inflator 20 is located and inflated when a pressure higher than a set pressure due to a temperature rise in the gas container 100 is generated, 12), and is formed as a second expansion flow passage (14) in which the inflator (20) is located at the time of gas injection.

In other words, the expansion flow path is formed by the first and second expansion flow paths to allow the expansion element to be located in the second expansion flow path having a larger diameter during the gas filling, so that the gas filling can be performed more smoothly. That is, when the inflator is located at the second expansion passage having a larger diameter than the inflated position at the time of filling the gas, a wider gap is formed around the inflator, so that the gas filling into the gas container can be performed more quickly and easily You can.

Further, in order to allow the gas filling and discharging to be smoothly carried out into the gas container and to securely fix the connection of the mounting cap tightly, the guide cap (30) 32 are formed between the mounting cap 30 and the inner surface of the second expansion passage 14 which is the expansion passage.

That is, since the guide jaw is abutted and supported by the inflatable body when the gas is filled, the inflow or outflow of gas into the guide jaw can be smoothly performed even when the inflatable body is in contact with the guide jaw.

In order to prevent the gas from leaking through the gap when the mounting cap is fixed, the mounting cap can be tightly fixed to the mounting cap.

Further, it is possible to provide the guide protrusion on the gas flow path side close to the inflator.

However, as shown in FIG. 4, the first expansion flow passage 12, which is an expansion flow passage, is expanded to a larger area when expanding, so that the first expansion flow passage 12 having a larger contact area And the inflator 20 is formed in a rectangular shape so that the closing can be stably performed. That is, the ball body as the expansion is formed into a rectangular shape so as to have a wider area to the left and right.

As a result, the expandable body expands in a rectangular shape when inflated and is brought into close contact with the inner side surface of the first expansion flow path in a wider area, so that the airtightness can be further increased, It also has an advantage.

1: interrupter
10: Extension channel 12: First extension channel
14: second expansion passage 20: expansion body
22: ball body 24: expansion material
30: mounting cap 32: guide chin
34: machine milling 100: gas container
110: valve unit 120: gas induction pipe
122: gas channel

Claims

A gas discharge interrupting device for preventing gas from being discharged when a pressure higher than a set pressure due to a temperature rise in a gas container after gas filling through a gas induction pipe formed with a gas flow path coupled to a valve unit of a gas container,
Wherein the shielding device comprises: a gas flow path of the gas induction pipe; an expansion flow path formed to have a diameter larger than the diameter of the gas flow path;
The expansion valve has a larger diameter than the gas flow path on the expansion flow path and has a diameter smaller than that of the expansion flow path so that it does not cause a trouble when filling the gas and discharging the gas, sieve; And
And a mounting cap penetratingly coupled to the gas guide tube at an end of the gas channel so as to allow gas to pass therethrough while preventing the inflator from being separated from the gas guide tube.

The method according to claim 1,
Wherein the inflatable body is made of a flexible material whose outer surface is flexible and which is free to shrink and expand, and an expansion material filled in the ball body so as to be inflated when a pressure higher than a set pressure due to a rise in temperature in the gas container is generated The gas discharge device of the gas container.

3. The method of claim 2,
Wherein the expansion material is a gas or a liquid.

4. The method according to any one of claims 1 to 3,
Wherein the expansion channel includes a first expansion channel in which the expansion member is located and inflated when a pressure higher than a set pressure due to a temperature rise in the gas container is generated and a second expansion channel having a diameter larger than that of the first expansion channel, And the gas flow path is formed by a flow path.

5. The method of claim 4,
Wherein the guide cap is formed on the inner surface of the mounting cap at a predetermined interval and the inner surface of the mounting cap and the inner surface of the second expansion passage are formed to have a chamfered shape. Device.