WO2012091522A2

WO2012091522A2 - Safe decompressor for a small compressed-gas container

Info

Publication number: WO2012091522A2
Application number: PCT/KR2011/010397
Authority: WO
Inventors: 백종태; 임태영
Original assignee: (주)씨아이제이
Priority date: 2010-12-30
Filing date: 2011-12-30
Publication date: 2012-07-05
Also published as: WO2012091522A3; KR20120076741A; KR101215036B1

Abstract

The present invention relates to a decompressor for a compressed-gas container, wherein the may adjust the amount of gas being discharged, while discharging the compressed-gas stored in the container in a timely and easy manner, and also may discharge overly pressurized gas to the outside via a safety device arranged at one side of the decompressor when the gas is exposed to a high temperature or is highly pressurized by a flame or the like during storage or use, thus preventing the explosion of the container. The decompressor of the present invention comprises: a main body made of a metal; a spindle slider which slides by means of the elastic force of a spring; and an operating lever which melts at a low temperature. The decompressor of the present invention may be provided as a sliding-type or punching-type decompressor.

Description

Safety pressure reducer for small compressed gas containers

The present invention relates to a safety pressure reducer for a compact compressed gas container, and more particularly, to control the amount of gas ejected while easily ejecting compressed gas or compressed air stored in the container through a pressure reducer in a timely manner, When a high temperature or high pressure state due to the like, the pressure reducing device of the compressed gas container to eject the overpressure gas to the outside through a safety device provided on one side of the pressure reducer to prevent the container from exploding.

In the event of a fire in the subway or in an enclosed space, most casualties are asphyxiation due to toxic gases. In order to prevent asphyxiation during a fire in such an enclosed space, there is a method of wearing a gas mask, which does not filter all kinds of toxic gas, and there are few places where a gas mask is equipped and the wearing process is inconvenient. little.

In order to solve this problem, a new concept air respirator having a compact compressed gas container containing air or oxygen has been developed to block the toxic gas and maintain breathing while being easy to install and easy to wear.

In general, a method of storing and supplying a gas is to charge or liquefy and store the liquid in a high pressure state in a special container, and to supply the gas at a proper consumption pressure using a pressure regulator such as a regulator as necessary.

In the conventional pressure reducing device, it is common to open and close the pressure reducing valve by rotating a knob such as a knob, but unlike usual, it is expected that the pressure reducing valve is adjusted as usual because there is no confusion in case of an emergency such as a fire. I can't.

Therefore, the air respirator equipped with compressed gas in case of emergency such as a fire needs to supply the compressed gas to the wearer by depressurizing the compressed gas to a pressure suitable for automatically breathing by one touch without any additional manipulation. There is this.

The air respirator with compressed gas is compressed and filled with breathing gas such as oxygen, so if the storage area itself is fired or exploded at high pressure, it can cause fatal damage to nearby facilities or people. If the pressure is higher, some or all of the gas in the container is discharged to the outside to prevent the explosion is necessary.

In addition, the above life-saving equipment is essential for long-term performance because it is not used at all times but only for emergencies, but it may not be able to function properly in case of emergency, because gas leakage may occur due to incomplete sealing of the pressure reducer. There is this.

The present invention is to provide a decompression device for supplying breathing maintenance gas at a proper pressure to the wearer by reducing the high-pressure compressed gas with one touch in an emergency such as a fire in a life-saving air respirator equipped with a compressed gas do.

In addition, the present invention is to prevent the explosion of the gas container by ejecting the over-pressure gas in the gas container to the outside through the pressure reducer when pressure is applied from the outside to the small gas container or excessively high pressure in the gas container due to the temperature rise. It is intended to provide a safety device for a compressed gas container.

In addition, the present invention is to provide a pressure reduction device and a safety device that maintains a sealed state to maintain long-term performance while automatically or manually ejecting and decompressing the gas in the event of an emergency.

The pressure reducer for a small compressed gas container according to the present invention for solving the above problems is a sliding type of opening and closing, consisting of a metal body, the opening and closing spindle slider sliding by the elastic force of the spring and the operating lever.

Specifically, the lower portion of the main body is formed with a screw fastening portion to be coupled to the coupling portion of the container, the container through pin having a flow hole connected to the gas discharge portion of the container and the pressure reducing spindle nozzle of the upper body is formed,

The upper portion of the main body is formed with a reduced pressure spindle nozzle for adjusting the amount of gas discharged,

The central portion of the main body is formed with a through hole on the left and right, and a distribution hole is shifted up and down, the opening and closing spindle slider is inserted into the through hole is tapered to form a concave groove with a predetermined width in the middle, to maintain a plurality of seals An O-ring is inserted and installed, and an elastic spring is installed at one side and an operating lever is installed at the other side, and when the operating lever is removed, the spring is slid by the elastic force of the spring, and the narrow groove and the distribution hole are connected to discharge gas. and,

The actuating lever is characterized in that the polymer is one side is opened in the form of tongs and inserted into one side of the opening and closing spindle slider to be manually removed or melted by heat.

In another embodiment of the sliding pressure reducer according to the present invention, a safety valve configured to open and close the piston valve while compressing the spring when the container is overpressured by the elastic force of the pressure spring and the container is overpressured so that the pressure in the container is greater than the elastic force of the pressure spring. It includes more.

As another embodiment of the sliding type pressure reducer according to the present invention, it is characterized in that it further comprises a melting safety screw cover so that the melted and the overpressure gas is discharged when a certain temperature is exceeded.

As another embodiment according to the present invention for application to a canned gas vessel in which the outlet of the vessel is not preformed, the punching decompressor is a metallic body, a punching spindle slider and an actuating lever that slides under the elastic force of the spring. It consists of.

Specifically, the lower portion of the main body is formed with a screw fastening portion to be coupled to the coupling portion of the container, and a punching pin elastically supported by a spring in the flow hole connected to the pressure reducing spindle nozzle of the container and the upper body,

The central portion of the main body is a hole is formed only in one side in the transverse direction and the distribution hole is formed up and down,

The punching spindle slider is inserted into the hole, the groove is formed to be inclined to a predetermined width in the middle, a plurality of O-rings are inserted to maintain the sealability, the thread is formed on one side and the operation lever is installed on the other side When the operation lever is rotated in one direction, the inclined narrow groove of the punching spindle slider slides over the punching pin head, and the punching pin descends to penetrate the upper portion of the container made of cans to discharge gas into the distribution hole.

In another embodiment of the punching type pressure reducer according to the present invention, a lower portion of the main body is provided with a fastening portion to be coupled to the engaging portion of the container, and the punching pin is slid into the flow hole connected to the pressure reducing spindle nozzle of the upper portion of the container and the main body is provided. Become,

One side of the body in the lateral direction is formed with a reduced pressure spindle nozzle for adjusting the amount of gas discharged,

The central portion of the main body is formed with a through hole up and down,

When the opening and closing spindle slider inserted into the through hole is inserted into a plurality of O-rings are inserted to maintain the sealability, one side of the compression elastic spring is installed and the other side operating lever is installed, the operation lever is removed When the punching pin hits the punching pin by the spring's elastic force, the punching pin slides downward and pierces the upper part of the container made of cans to discharge gas into the distribution hole.

As another embodiment of the punching type pressure reducer according to the present invention, it is further characterized by further comprising a safety valve configured to open the piston valve while compressing the spring when the vessel is overpressured and the pressure in the vessel is greater than the elastic force of the pressurizing spring. .

Pressure reducer for compressed gas container according to the present invention by reducing the high-pressure compressed gas in one touch (one touch) in an emergency situation, such as a fire by supplying the breathing maintenance gas at an appropriate pressure to the wearer, the operation is simple and safe and toxic You can save lives by preventing gas asphyxiation and maintaining a comfortable breathing until you escape.

In addition, the present invention is to prevent the explosion of the gas container by ejecting the over-pressure gas in the gas container to the outside through the pressure reducer when the pressure in the small gas container from the outside or excessively high pressure in the gas container due to the temperature rise It is effective to ensure safety.

In addition, by providing a pressure reducer and a safety device for the can type that can be stored for a long time, it is easy to supply, there is an effect that the maintenance inspection cost and replacement cost is reduced.

1 is a photograph showing a state in which a pressure reducer is attached as a small compressed gas container used for a life-saving air respirator.

2 is a sectional view of an automatic slide type pressure reducer.

3 is a sectional view of an automatic slide type pressure reducer with a safety valve added.

4 is a photograph of an automatic slide type pressure reducer equipped with a high temperature melting screw.

5 is a sectional view of a manual punching pressure reducer.

6 is a sectional view of an automatic punching type pressure reducer.

7 is a sectional view of an automatic punching pressure reducer with a safety valve added.

In the pressure reducer in which the main body is coupled to the small compressed gas container and the sliding opening and closing spindle is formed,

The lower part of the main body is formed with a screw fastening portion to be coupled to the coupling portion of the container, the container through pin having a flow hole connected to the gas discharge portion of the container and the pressure reducing spindle nozzle of the upper body is formed,

The central portion of the main body is formed with a through hole in the left and right and up and down is formed a distribution hole,

The opening and closing spindle slider inserted into the through hole has a tapered shape in which a narrow groove is formed at a predetermined width, and an O-ring is inserted to maintain the sealing property, and an elastic spring is installed at one side and an operation lever at the other side. Is installed, when the operating lever is removed is slid by the elastic force of the spring is connected to the narrow groove and the distribution hole to discharge the gas,

Hereinafter, a safety pressure reducer for a compact compressed gas container according to a preferred embodiment of the present invention will be described with reference to the drawings. The illustrated drawings are only enlarged to the essential content for clarity of the invention, and the additional ones are omitted and should not be construed as limited to the drawings. The same reference numerals are used for configurations having the same function.

1 is a photograph showing a small compressed gas container combined with a pressure reducer as used in a one-touch type air respirator.

Example 1

Figure 2 shows an embodiment of a sliding pressure reducer according to the present invention, shows a pressure reducer that automatically depressurizes in a one-touch manner when the air respirator is worn.

The pressure reducer includes a main body 10, an open / close spindle slider 20, an actuating lever 30, a compressed elastic spring 40, a decompression spindle nozzle 50, and a

flow hole

60a, 60b. Removing the (30) by sliding the opening and closing spindle slider 20 with a groove in the center with the restoring force of the compression spring (40) to connect the distribution hole 60 is positioned up and down on the main body in a gas depressurized state Allow discharge through the reduced-pressure spindle nozzle.

The material of the pressure reducer body is manufactured by machining with brass or aluminum or by molding injection of reinforced plastic (FRP).

The lower portion of the main body 10 has a screw fastening portion 11 is formed to be coupled to the coupling portion of the container, and has a flow hole 60 connected to the gas outlet of the container and the pressure-sensitive spindle nozzle 50 of the upper body The container through pin 12 is formed.

The upper portion of the main body 10 controls the amount of gas discharged by the pressure reducing spindle nozzle 50 is formed. The gas discharged here is supplied to the breathing unit of the air respirator and the gas discharge can be adjusted by adjusting the pressure reducing spindle nozzle 50.

The central portion of the main body 10 is formed with a through hole on the left and right, and through

holes

60a and 60b displaced up and down to form a plurality of opening and closing spindle sliders 20 to maintain the sealing property so that gas does not leak. O-ring (22) is fitted.

The opening / closing spindle slider 20 has a tapered shape so that a groove 21 is formed in the center thereof in a predetermined width to form a flow path. Compressed elastic spring 40 is installed on one side of the opening and closing spindle slider 20 and the operating lever 30 is installed on the other side, and when the operating lever 30 is removed, it is slid by the elastic force of the compressed spring 40. The narrow groove 21 and the distribution holes (60a, 60b) is connected to discharge the gas under reduced pressure.

The actuating lever 30 is open in the form of a forceps so that one side of the actuating spindle slider can enter, so that the elastic spring on the other side is compressed by the thickness of the actuating lever when fitted to one side of the actuating spindle slider 20. When 30) is removed, the compressed elastic spring is restored and slides the opening and closing spindle slider 20 in one direction with elastic force.

The actuating lever 30 may be removed or pulled out by a pulling force that opens when opening the air respirator pack to wear the air respirator. The operation lever 30 uses a plastic that can be melted by high heat, which is melted and removed by heat when an abnormally high temperature such as a fire occurs during storage, and the decompressor operates to discharge the overpressure gas to prevent explosion of the compressed gas container. have.

The material of the actuating lever is a low-temperature type (120 ° C. melting type) and a high-temperature type (150 ° C. melting type) polymer polymer. Generally, a hot melt stick is used.

Example 2

Figure 3 shows another embodiment of the sliding type pressure reducer according to the present invention, a relief valve for operating when the pressure of the compressed gas container is above the specified pressure to prevent deformation or explosion of the container is further It is included.

Referring to Figure 3, the safety valve 70 is a cylinder hole is formed on the side of the pressure reducing spindle nozzle of the upper body 10, the operating hole 71, the pressure spring 72, the outlet hole is formed in the cylinder hole spring It consists of a piston valve 74 fitted with a housing 73 and an O-ring. The diameter of the lower end of the cylinder hole is formed so as to fit snugly with the piston valve, but the diameter of the upper part is large so that the gas can flow out and install the pressure spring 72.

The pressure of the compressed gas container is transmitted to the lower end of the piston valve 74 through the outlet of the container, the outlet hole 60a of the pressure reducer, and the concave groove 21 of the opening and closing spindle slider. When the pressure in the container exceeds the specified pressure (for example, 200 atm or more) due to a fire, the cylinder pushes up the lower end of the piston valve. When the pressure applied to the piston is greater than the pressure spring 72 elastic force, the spring is compressed and the piston When the valve is raised to prevent the gas is discharged by explosion, and the pressure in the container is lowered, the piston valve is lowered by the elastic restoring force of the pressure spring to block the gas discharge.

The operating pressure of the safety valve 70 may be adjusted by changing the pressing force of the spring 72 by tightening or releasing the pressure spring by forming the spring housing 73 as an adjustment bolt.

Example 3

Figure 4 shows another embodiment of the sliding type pressure reducer according to the present invention, which further includes a safety device 80 to operate when the compressed gas container is in an overheated state to prevent deformation or explosion of the container. .

The safety device 80 is composed of a safety discharge hole 81 and the melting safety screw cover 82 in the side portion of the body (10). The melt safety screw cover 82 is made of a material such as plastic that can withstand a certain pressure at room temperature and can be melted by a high temperature of 120 ° C. or higher or destroyed by a certain pressure.

The pressure of the compressed gas container is transmitted to the melt safety screw cover 82 through the outlet of the container, the outlet hole 60a of the pressure reducer, and the concave groove 21 of the opening / closing spindle slider. When the container has a high temperature of 120 ° C. or higher due to a fire or the like, the sealing is released while melting due to the material characteristics of the safety screw, and the gas in the container is ejected to prevent explosion of the container in advance.

The material of the safety screw cover 82 is a low-temperature type (120 ℃ melting type) and a high-temperature type (150 ℃ melting type) polymer polymer, considering the mechanical strength high temperature type is preferable.

Example 4

It is essential to maintain long-term performance because life-saving equipment is used only in emergencies, not always. However, the above-described pressure reducer is connected to the discharge portion of the container, there is a problem that the O-ring, etc. are aging and the sealing is not complete, so that the gas can be leaked, so the validity period is as short as one year.

The long-term method of maintaining compressed gas is to use a can-type container that forms a discharge port only when necessary by using a completely sealed container. The discharge port of the can-type gas container includes a punching pin having an outlet hole when necessary. Use a pressure reducer.

5 shows a passive pressure reducer having a punching pin 90, which includes a main body 10, a punching pin 90, a spindle slider 20, and a pressure reducing spindle nozzle 50.

The lower portion of the main body 10 is formed with a screw fastening portion to be coupled to the coupling portion of the container, the container punching pin 90 having a flow hole connected to the gas outlet of the container and the pressure-sensitive spindle nozzles on the upper body is formed. The punching pin is elastically supported by the pressure spring.

The central portion of the main body 10 has a hole formed only in one side in the transverse direction, and a distribution hole is formed up and down, and the punching spindle slider 20 inserted into the hole has a tapered shape and a tapered groove with a predetermined width in the center thereof. Is formed, a plurality of O-ring (O-ring) is inserted and installed to maintain the sealing, the thread is formed on one side and the operation lever 30 is installed on the other side, by rotating the operation lever in one direction of the punching spindle slider As the inclined narrow groove is slid over the punching pin head, the punching pin 90 descends to pierce the upper portion of the canned container and decompress the gas into a distribution hole.

Example 5

Figure 6 shows another embodiment of the punching type pressure reducer according to the present invention, shows a device for automatically reducing the pressure by using a spring elasticity.

The lower portion of the main body is provided with a fastening portion to be coupled to the coupling portion of the container, the punching pin 90 is slid in the through-hole 76 connected to the pressure-sensitive spindle nozzle 50 of the container and the upper body.

One side of the body in the lateral direction adjusts the amount of gas discharged by the pressure reducing spindle nozzle 50 is formed. The discharged gas is supplied to the breathing unit of the air respirator by bending in a 90 ° direction with the decompression spindle nozzle 50, and the gas discharge may be adjusted by adjusting the decompression spindle nozzle 50.

The through hole 76 is formed in the center of the main body up and down, and the punching spindle slider 20 inserted into the through hole 76 has a plurality of O-rings inserted therein so as to maintain hermeticity. The compressed elastic spring 40 is installed on the other side and the operating lever 30 is installed on the other side, when the operating lever 30 is removed, the end portion 75 of the punching spindle slider hits the punching pin head by the elastic force of the spring. When the punching pin 90 is lowered, the punching pin 90 is lowered, and the gas is discharged by decompressing the upper portion of the can made of cans through the

distribution holes

60a and 60b.

The actuating lever 30 may be removed or pulled out by the pulling force to open when opening the respirator pack for wearing. The material of the operation lever 30 is a polymer polymer that can be melted by a high temperature of 120 ° C. or higher, which is melted and removed by heat when an abnormally high temperature such as a fire occurs during storage, and the pressure reducer operates to discharge the overpressure gas to discharge the pressurized gas container. Can prevent explosion.

Example 6

Figure 7 shows another embodiment of the punching type pressure reducer according to the present invention, the pressure of the compressed gas container is more than the specified pressure when the can-type container is punched through the punching pin to discharge the high-pressure gas is excessively ejected The safety valve (relief valve) is further included.

Referring to Figure 7 (A), the safety valve 70 has a cylinder hole formed on the other side of the main body 10 in the opposite direction to the pressure-reducing spindle nozzle on the side of the side 10, the working shaft 71, the pressure spring 72, It consists of a spring housing 73 in which an outlet hole is formed and a piston valve 74 fitted with an O-ring. The shape of the cylinder hole is the same as that of the second embodiment.

A fire occurs during storage, and the operating lever melts and is removed at a high temperature, and the tip of the punching spindle slider hits the head of the punching pin 90 by the elastic force of the spring, and the punching pin 90 descends, and the upper portion of the can container When the gas flows into the distribution hole 60a and the pressure of the container is transmitted to the lower end of the piston valve 74 of the safety valve 70, the pressure is compressed while the pressure in the container is greater than the elastic force of the pressure spring 72. The valve 74 is opened so that the overpressure is eliminated.

The operating pressure of the safety valve 70 may be adjusted by changing the pressing force of the spring by tightening or releasing the pressure spring 72 by forming the spring housing 73 as an adjustment bolt.

FIG. 7B illustrates a state in which the operation lever 30 is removed by a one-touch operation, and illustrates a state in which the punching pin 90 is hit by being inflated with the elastic force of the spring.

This one-touch operation state is equally applicable to the first, second, third and fifth embodiments.

[Description of the code]

10: body 11: screw connection

12: through pin 20: spindle slider

21: tapered groove 22: O-ring

30: operating lever 40: spring

50: pressure

reduction spindle nozzle

60a, 60b: flow hole

70: safety valve 71: operating shaft

72: pressure spring 73: spring housing

74: piston valve 80: safety device

90: punching pin

Pressure reducer for compressed gas container according to the present invention by reducing the high-pressure compressed gas in one touch (one touch) in an emergency situation, such as a fire by supplying the breathing maintenance gas at an appropriate pressure to the wearer, the operation is simple and safe and toxic It is applied to the one-touch type air respirator that prevents choking by gas and keeps breathing comfortable until it escapes.

In addition, it provides a pressure reducer and a safety device for the respirator of can type air that can be stored for a long time.

Claims

In the pressure reducer in which the main body is coupled to the small compressed gas container and the sliding opening and closing spindle is formed,

The lower part of the main body is formed with a screw fastening portion to be coupled to the coupling portion of the container, the container through pin having a flow hole connected to the gas discharge portion of the container and the pressure reducing spindle nozzle of the upper body is formed,

The upper portion of the main body is formed with a reduced pressure spindle nozzle for adjusting the amount of gas discharged,

The central portion of the main body is formed with a through hole in the left and right and up and down is formed a distribution hole,

The opening and closing spindle slider inserted into the through hole has a tapered shape in which a narrow groove is formed at a predetermined width, and an O-ring is inserted to maintain the sealing property, and an elastic spring is installed at one side and an operation lever at the other side. Is installed, when the operating lever is removed is slid by the elastic force of the spring is connected to the narrow groove and the distribution hole to discharge the gas,

The actuating lever is a pressure reducer for a compact compressed gas container, characterized in that one side is a polymer that is opened in the form of tongs and inserted into one side of the opening and closing spindle slider to be manually removed or melted by heat.
The miniature compression of claim 1, further comprising a safety valve configured to open and close the piston valve while compressing the spring when the container is kept blocked by the elastic force of the pressure spring and the container is overpressured so that the pressure in the container is greater than the elastic force of the pressure spring. Pressure reducer for gas container
The pressure reducer for a compact compressed gas container according to claim 1, further comprising a melting safety screw cover to melt and discharge the overpressure gas when the temperature exceeds a predetermined temperature.
In the pressure reducer the main body is screwed with the small compressed gas container, the spindle lever and the punching pin is formed,

The lower part of the main body is formed with a screw fastening portion to be coupled to the coupling portion of the container, and a punching pin elastically supported by a spring in the flow hole connected to the pressure reducing spindle nozzle of the container and the upper body,

The upper portion of the main body is formed with a reduced pressure spindle nozzle for adjusting the amount of gas discharged,

The central portion of the main body is a hole is formed only in one side in the transverse direction and the distribution hole is formed up and down,

The punching spindle slider is inserted into the hole, the groove is formed to be inclined to a predetermined width in the middle, the O-ring is inserted to be installed, the thread is formed on one side and the operating lever is installed on the other side, When the operation lever is rotated in one direction, the inclined narrow groove of the punching spindle slider slides over the punching pin head, and the punching pin descends to penetrate the upper portion of the canister and discharge the gas to the distribution hole. Decompressor
In the pressure reducer, the main body is screwed into the small compressed gas container and the sliding punching spindle slider is formed,

The lower portion of the main body is provided with a fastening portion to be coupled to the coupling portion of the container, the punching pin is provided that slides in the flow hole connected to the pressure reducing spindle nozzle of the container and the upper body,

One side of the body in the lateral direction is formed with a reduced pressure spindle nozzle for adjusting the amount of gas discharged,

The central portion of the main body is formed with a through hole up and down,

The opening and closing spindle slider inserted into the through hole is installed in the O-ring (O-ring) is inserted to maintain the sealing, one side of the compressed elastic spring is installed and the other side of the operating lever is installed, when the operating lever is removed of the spring When the punching pin is hit by elastic force, the punching pin slides downward and drills the upper part of the canned container to discharge gas to the distribution hole.

The actuating lever is a pressure reducer for a compact compressed gas container, characterized in that one side is a polymer that is opened in the form of tongs and inserted into one side of the opening and closing spindle slider to be manually removed or melted by heat.
6. The pressure reducer of claim 5, further comprising a safety valve configured to open the piston valve while compressing the spring when the vessel is overpressured and the pressure in the vessel is greater than the elastic force of the pressure spring.
The pressure reducer for a compact compressed gas container according to any one of claims 1 to 3 and 5 to 6, wherein the operating lever is operated by one touch operation.