KR20220051498A - Connection plug for high pressure gas storage container and Support device comprising the same - Google Patents

Abstract

The present invention relates to a connection plug for a high-pressure gas storage container capable of communicatively coupling a storage container and a safety valve, and a support device including the same. According to the present invention, the connection plug for a high-pressure gas storage container may comprise: a coupling unit communicatively coupled to one side of the high-pressure gas storage container; and a body unit extending in one direction from the coupling unit to receive a high-pressure gas from the coupling unit, and having a coupling hole formed on the side part thereof to be communicatively coupled to a safety valve to provide the high-pressure gas to the safety valve side.

Description

Connection plug for high pressure gas storage container and Support device comprising the same

The present invention relates to a connection plug for a high-pressure gas storage container capable of communicatively coupling a storage container and a safety valve, and a support device including the same, and more particularly, to a storage container and a storage container using a connection plug formed of a single body. It relates to a connection plug for a high-pressure gas storage container with improved safety by reducing disassembly and assembly time and reducing leakage points by communicatively coupling a safety valve, and a support device including the same.

In general, a high-pressure gas storage container can be used to store various high-pressure gases such as hydrogen, LNG, LN2, CNG. The gas stored in such a storage container has a very low density and has a very small volume elastic modulus compared to a liquid. In order to store a large amount of gas in a limited space, it must be compressed at a high pressure. Therefore, when manufacturing a high-pressure gas storage container, pressure design to prevent large accidents due to leakage and rupture must be thoroughly performed.

These high-pressure gas storage containers include a composite storage container of a structure (Type 3) in which a fiber-reinforced resin or reinforcing fiber is wound on the outer surface of a liner such as aluminum alloy or metal, and a reinforcing fiber wound around a container made of reinforcing plastic ( It can be classified as a type 4) composite storage container.

1 is a view showing a state in which a composite storage container of Type3 according to the prior art is coupled to a manifold. Referring to FIG. 1, the composite storage container of Type3 (S) has one end of the front frame 10 of the manifold ), and the other end may be coupled to the rear frame 20 .

Specifically, the rear frame 20 is provided with a safety valve 30 coupled in communication with the composite storage container (S), so that when the internal pressure of the composite storage container becomes a pressure greater than or equal to the operating pressure, the operating pressure is returned through release. can be maintained as At this time, the safety valve 30 provided in the rear frame 20 may be coupled to the composite storage container S by using various connecting members 40 such as the pipe 41 and the joint 42 .

As such, as the connection member 40 is composed of several accessories, the structure is complicated, disassembly and assembly take a lot of time, and there is a problem of having many leakage sections.

In addition, in the case of the rear frame 20, when the inside of the composite storage container (S) exceeds the operating pressure, special attention must be paid to leakage because it is a section in which the pressure in the storage container (S) is released. If 40) is made of a number of accessories, there is a problem in that the leakage point increases and safety cannot be secured.

Patent Publication No. 10-2018-0055415 (published on May 25, 2018)

An object of the present invention is to connect a storage container and a safety valve in a communicable manner using a connecting plug formed of a single body, thereby shortening disassembly and assembly time, and reducing leakage points and improving safety by connecting plug for high-pressure gas storage containers And to provide a support device including the same.

A connection plug for a high-pressure gas storage container according to the present invention for achieving the above object includes: a coupling part that is communicatively coupled to one side of the high-pressure gas storage container; and a body part extending in one direction from the coupling part to receive high-pressure gas from the coupling part, and having a coupling hole formed on the side part to communicate with a safety valve to provide the high-pressure gas to the safety valve side; can do.

In addition, a gas flow passage for communicatively connecting the storage container and the safety valve may be formed in the coupling part and the body part.

In addition, the flow path may include a first flow path recessed long from one end of the coupling part to a portion where the coupling hole is located, and a second flow path extending in a vertical direction from the end of the first flow path and communicating with the coupling hole. there is.

In addition, a support member may be formed in the body portion at a connection portion of the first flow path and the second flow path, and protrudes inward of the second flow path to support the safety valve.

In addition, the safety valve may be coupled to the second flow path through a coupling.

In addition, at least one step is formed in the inside of the second flow path, the coupling is formed with a seating part inserted into the second flow path to be seated on the step, and extending from the seating part in one direction, and the outer circumferential surface is the It may include a cover portion protruding outward than the seating portion to cover the coupling hole.

In addition, the coupling portion is provided in a cylindrical shape having a screw thread formed on its outer circumferential surface for coupling with the boss of the storage container, and the body portion is provided in a cylindrical shape having a larger diameter than the coupling portion so that it can be seated on the boss of the storage container. can

A support apparatus for a high-pressure gas storage container according to the present invention includes: a rack including a front frame for supporting one end of a storage container in which high-pressure gas is stored, and a rear frame for supporting the other end of the storage container; a connection plug communicatively coupled to the storage container and having a coupling hole through which the high-pressure gas is discharged; and a supply valve connected between the front frame and the storage container for charging the high-pressure gas into the storage container, and inserted and coupled to the coupling hole of the connection plug to prevent overpressure of the storage container by the high-pressure gas being filled It may include; a manifold including a safety valve.

In addition, the connection plug is provided in a cylindrical shape having a screw thread on its outer circumferential surface and includes a coupling part screwed to the boss of the storage container, and extending in one direction from the coupling part to receive a high-pressure gas from the coupling part, the storage It may include a body portion provided in a cylindrical shape having a diameter larger than that of the coupling portion so as to be seated on the boss of the container.

In addition, a gas flow passage for communicatively connecting the storage container and the safety valve may be formed in the coupling part and the body part.

In addition, the flow path may include a first flow path recessed long from one end of the coupling part to a portion where the coupling hole is located, and a second flow path extending in a vertical direction from the end of the first flow path and communicating with the coupling hole. there is.

In addition, a support member may be formed in the body portion at a connection portion of the first flow path and the second flow path, and protrudes inward of the second flow path to support the safety valve.

In addition, the safety valve may be coupled to the connection plug through a coupling.

In addition, at least one step is formed in the inside of the second flow path, the coupling is formed with a seating part inserted into the second flow path to be seated on the step, and extending from the seating part in one direction, and the outer circumferential surface is the It may include a cover portion protruding outward than the seating portion to cover the coupling hole.

According to the present invention, since the storage container and the safety valve can be communicatively coupled only with a connection plug consisting of one body without various connecting members such as multiple pipes or joints as in the prior art, the disassembly and assembly time is shortened. there is.

In addition, since a connecting member such as a pipe and a joint is not required, unnecessary waste of materials can be reduced.

In addition, since the connection plug is directly coupled to the storage container without being constrained by the rear frame, disassembly and assembly are facilitated.

In addition, as the connecting plug is formed as a single body, it is possible to secure stability by reducing the leakage point compared to the conventional connecting member made of a plurality of parts.

1 is a perspective view showing a state in which a composite storage container of Type3 according to the prior art is coupled to a manifold.
Figure 2 is a perspective view of a connection plug for a high-pressure gas storage container according to an embodiment of the present invention.
Figure 3 is a cross-sectional perspective view of Figure 2;
Figure 4 is a perspective view showing a state in which the connection plug shown in Figure 2 is coupled to the storage container.
Fig. 5 is a partial cross-sectional view of Fig. 4;
6 is a perspective view showing a support device for a high-pressure gas storage container according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, a connection plug for a high-pressure gas storage container and a support device including the same according to a preferred embodiment will be described in detail as follows. Here, the same reference numerals are used for the same components, and repeated descriptions and detailed descriptions of well-known functions and configurations that may unnecessarily obscure the gist of the invention will be omitted. The embodiments of the present invention are provided in order to more completely explain the present invention to those of ordinary skill in the art. Accordingly, the shapes and sizes of elements in the drawings may be exaggerated for clearer description.

2 is a perspective view of a connection plug for a high-pressure gas storage container according to an embodiment of the present invention, and FIG. 3 is a cross-sectional perspective view of FIG. 2 . And, FIG. 4 is a perspective view illustrating a state in which the connection plug shown in FIG. 2 is coupled to the storage container, and FIG. 5 is a partial cross-sectional view of FIG.

2 to 5 , the connection plug 200 for a high-pressure gas storage container may include a coupling part 210 and a body part 220 .

The connection plug 200 for the high-pressure gas storage container in this embodiment is to be used to connect the safety valve 300 to the storage container (S) storing high-pressure gas such as hydrogen, LNG, LN2, CNG so as to be able to communicate. can

The coupling part 210 may be communicatively coupled to one side of the high-pressure gas storage container (S). For example, the coupling portion 210 may be provided in a cylindrical shape having a screw thread formed on the outer circumferential surface to be screwed to the boss b of the storage container S. Here, the storage container (S) has a structure in which a fiber-reinforced resin or reinforcing fiber is wound on the outer surface of a liner such as aluminum alloy or metal, and may be a type 3 (TYPE3) composite container in which bosses (b) are formed at both ends. . Both ends of the TYPE3 storage container (S) can be supported by the front frame 111 and the rear frame 112 of the rack 100, a detailed description will be given later.

The body part 220 is formed to extend in one direction from the coupling part 210 to receive the high-pressure gas from the coupling part 210 . In addition, a coupling hole 220a for communicatively coupling with the safety valve 300 may be formed on the side of the body 220 . Accordingly, one side of the safety valve 300 can be inserted and coupled to the coupling hole 220a, and due to this structure, the high-pressure gas supplied into the storage container S passes through the coupling hole 220a and the safety valve ( 300) may be provided.

The body part 220 may be formed of a coupling part 210 and a single body, and may be provided in a cylindrical shape having a larger diameter than the coupling part 210 to be seated on the boss b of the storage container S. there is. That is, the body 220 is formed in a structure that more protrudes to the outside than the coupling part 210 , so that a step 223 may be formed in a portion in contact with the coupling part 210 , and the body part 220 is formed by the step 223 . The part 220 may be seated on one surface of the boss b.

The safety valve 300 may be inserted into the coupling hole 220a formed on one side of the body 220 , and the safety valve 300 may be coupled to the body 220 through the coupling 500 . At this time, by controlling the rotation angle of the coupling part 210 screwed to the boss (b) of the storage container (S), the coupling of the body part 220 when the connection plug 200 is coupled to the storage container (S). The hole 220a may be positioned to face upward.

As described above, as the coupling hole 220a is formed in the side of the body 220, the storage container S and the safety valve 300 are inserted and coupled to the safety valve 300 in the coupling hole 220a. can be communicatively coupled. Therefore, since the safety valve 300 can be coupled to the storage container S without various connecting members such as several pipes or joints as in the prior art, there is an advantage in that the disassembly and assembly time is shortened.

In addition, since it is a structure that combines the storage container (S) and the safety valve 300 only with the connection plug 200 made of one body, unnecessary waste of materials can be reduced.

In addition, since the connection plug 200 is not constrained to the rear frame 112 and is directly coupled to the storage container S, disassembly and assembly are facilitated.

According to the present invention, a gas flow passage 200a for connecting the storage container S and the safety valve 300 to communicate with each other may be formed in the coupling portion 210 and the body portion 220 . Specifically, the flow path 200a may include a first flow path 210a and a second flow path 210b.

The first flow path 210a may be formed to have a long recessed structure from one end of the coupling part 210 to a portion where the coupling hole 220a is located. For example, the first flow path 210a is a type of hole having a circular cross-section, which passes through the central portion of the coupling part 210 and is formed in a straight line up to the portion where the coupling hole 220a of the body part 220 is located. can

The second flow path 210b may extend in a vertical direction from an end of the first flow path 210a to communicate with the coupling hole 220a. For example, the second flow path 210b may be formed to have a larger diameter than the first flow path 210a, and at least one step 221 may be formed therein.

As described above, as the stepped 221 is formed inside the second flow path 210b of the body 220, one surface of the coupling 500 for coupling the body 220 and the safety valve 300 is stepped. In close contact with the 221 , it is possible to prevent the high-pressure gas from leaking through the gap between the body 220 and the coupling 500 .

Specifically, referring to FIG. 5 , the coupling 500 may include a seating part 511 and a cover part 512 .

The seating portion 511 may have an outer shape corresponding to the second flow path 210b, and may be inserted into the second flow path 210b to have one end seated on the step 221 . For example, the seating portion 511 may be formed in a cylindrical shape with a hollow therein, and may be coupled into the second flow path 210b by a method such as screw coupling or welding.

The cover part 512 may extend in one direction from the seating part 511 and may have an outer circumferential surface protruding outward from the seating part 511 to cover the coupling hole 220a. That is, the diameter of the cover part 512 may be formed to be larger than the diameter of the coupling hole 220a, whereby the cover part 512 shields the coupling hole 220a, and the high-pressure gas leaks toward the coupling hole 220a. can be prevented from becoming

In this way, the seating portion 511 of the coupling 500 is in close contact with the step 221 of the second flow path 210b to primarily prevent the high-pressure gas from leaking, and the cover portion 512 is connected to the coupling hole ( 220a) is shielded to prevent secondary leakage of high-pressure gas, so airtightness is increased to ensure product safety.

On the other hand, inside the body portion 220 is located at the connection portion of the first flow path 210a and the second flow path 210b, and protrudes inward of the second flow path 210b to support the safety valve 300 . A member 222 may be formed. As such, as the safety valve 300 is supported by the support member 222 , it is possible to prevent the safety valve 300 from entering the first flow path 210a and blocking the first flow path 210a. In addition, when the end of the safety valve 300 is in close contact with the support member 222, sealing efficiency may be further improved.

6 is a perspective view illustrating a support device for a high-pressure gas storage container according to an embodiment of the present invention. In this embodiment, the difference from the previous embodiment will be mainly described.

2 to 6 , the support device 1 for a high-pressure gas storage container may include a rack 100 , a connection plug 200 , and manifolds 300 and 400 .

The support device 1 for a high-pressure gas storage container in this embodiment is to be used to accommodate the storage container (S) storing high-pressure gas such as hydrogen, LNG, LN2, CNG, etc. therein, and transport and load it to a specific location. can

The rack 100 may include a front frame 111 for supporting one end of the storage container (S) in which the high-pressure gas is stored, and a rear frame 112 for supporting the other end of the storage container (S). . For example, the front frame 111 and the rear frame 112 may be provided in plurality and may be stacked and coupled to each other in multiple rows and fortunately, respectively. Accordingly, since the structure of the rack 100 can be freely changed according to the number of storage containers (S), there is an effect of increasing usability.

A support frame 113 may be coupled to the lower portions of the front frame 111 and the rear frame 112 . The support frame 113 is coupled to a moving means such as a wheel, so that the storage container S coupled to the front frame 111 and the rear frame 112 can be transported to a desired position.

The connection plug 200 is communicatively coupled to the storage container S, and a coupling hole 220a through which the high-pressure gas is discharged may be formed on the side thereof. Specifically, the connection plug 200 may include a coupling part 210 and a body part 220 .

The coupling portion 210 may be provided in a cylindrical shape having a screw thread formed on its outer circumferential surface to be screwed to the boss (b) of the storage container (S).

The body part 220 is formed extending in one direction from the coupling part 210 to receive a high-pressure gas from the coupling part 210, and the coupling part 210 to be seated on the boss (b) of the storage container (S). ) may be provided in a cylindrical shape having a larger diameter than that. In addition, a coupling hole 220a through which the high-pressure gas is discharged may be formed at a side of the body 220 .

The manifolds 300 and 400 are for distributing the high-pressure gas charged/discharged to the storage container (S), and are connected between the front frame 111 and the storage container (S) to supply the high-pressure gas to the storage container (S). It may include a supply valve 400 for charging, and a safety valve 300 for preventing overpressure of the storage container S by the high-pressure gas inserted and coupled to the coupling hole 220a of the connection plug 200 to be charged. there is. In addition, although not shown, the manifold is connected between the front frame 111 and the storage container (S) may further include a discharge valve for discharging the high-pressure gas stored in the storage container (S).

According to this embodiment, the high-pressure gas provided from the supply valve 400 may be introduced in the order of the storage container (S) → the connection plug 200 → the safety valve (300). Accordingly, the storage container (S), the connection plug 200, and the safety valve 300 may be coupled to communicate with each other.

For example, a gas flow passage 200a for communicatively connecting the storage container S and the safety valve 300 is formed in the coupling portion 210 of the connection plug 200 and the body portion 220 . can be Specifically, the flow path 200a extends from one end of the coupling part 210 to the portion where the coupling hole 220a is located and extends in the vertical direction from the end of the first flow path 210a and the first flow path 210a. It may include a second flow path 210b communicating with the coupling hole 220a.

Accordingly, the coupling part 210 of the connection plug 200 is coupled to the boss b of the storage container S, and one side of the safety valve 300 is inserted into the coupling hole 220a of the body part 220 . When coupled to the second flow path 210b through the coupling 500 after the coupling 500 , the high-pressure gas may be introduced into the storage container S → the connection plug 200 → the safety valve 300 in the order. Due to this connection structure, when the inside of the storage container (S) is above the operating pressure, the safety valve 300 is opened to release the high-pressure gas to the outside, thereby preventing overpressure of the storage container (S).

Meanwhile, since the structures of the first flow path 210a and the second flow path 210b are the same as those described above, a detailed description thereof will be omitted.

As described above, the connecting plug 200 for a high-pressure gas storage container and the supporting device 1 including the same are conventionally used only with the connecting plug 200 consisting of one body without various connecting members such as multiple pipes or joints. Since the storage container (S) and the safety valve 300 can be coupled in a communicable manner, there is an advantage in that the disassembly and assembly time is shortened.

In addition, since a connecting member such as a pipe and a joint is not required, unnecessary waste of materials can be reduced.

In addition, since the connection plug 200 has a structure that is directly coupled to the storage container S without being constrained by the rear frame 112 , disassembly and assembly are facilitated.

In addition, as the connecting plug 200 is formed as a single body, the leakage point is reduced compared to the conventional connecting member made of a plurality of parts, thereby ensuring stability.

Although the present invention has been described with reference to an embodiment shown in the accompanying drawings, which is merely exemplary, those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. will be able Accordingly, the true scope of protection of the present invention should be defined only by the appended claims.

100: rack
111: front frame
112: rear frame
113: support frame
200: connecting plug
210: coupling part
200a: Euro
210a: first euro
210b: second euro
220: body part
300, 400: Manifold
500: coupling
511: seating part
512: cover part

Claims (14)

a coupling unit communicatively coupled to one side of the high-pressure gas storage container; and
a body part extending in one direction from the coupling part to receive the high-pressure gas from the coupling part, and having a coupling hole formed on the side part to communicate with a safety valve to provide the high-pressure gas to the safety valve side;
A connection plug for a high-pressure gas storage container comprising a.
According to claim 1,
A connection plug for a high-pressure gas storage container in which a gas flow passage for communicatively connecting the storage container and the safety valve is formed in the coupling part and the body part.
3. The method of claim 2,
The flow path includes a first flow path recessed long from one end of the coupling part to a portion where the coupling hole is located, and a second flow path extending from the end of the first flow path in a vertical direction to communicate with the coupling hole. Connection plug for vessel.
4. The method of claim 3,
A connection plug for a high-pressure gas storage container in which a support member for supporting the safety valve is formed inside the body portion at a connection portion between the first flow path and the second flow path, and protrudes in an inner direction of the second flow path.
4. The method of claim 3,
The safety valve is a connection plug for a high-pressure gas storage container coupled to the second flow path through a coupling.
6. The method of claim 5,
At least one step is formed inside the second flow path,
The coupling includes a seating part inserted into the second flow path to be seated on the step, and a cover part extending in one direction from the seating part, and having an outer circumferential surface protruding outward from the seating part to cover the coupling hole. connection plug for high-pressure gas storage containers.
According to claim 1,
The coupling portion is provided in a cylindrical shape having a screw thread formed on an outer circumferential surface for coupling with the boss of the storage container,
A connection plug for a high-pressure gas storage container provided in a cylindrical shape with a diameter larger than that of the coupling part so that the body part can be seated on the boss of the storage container.
a rack including a front frame for supporting one end of a storage container in which high-pressure gas is stored, and a rear frame for supporting the other end of the storage container;
a connection plug communicatively coupled to the storage container and having a coupling hole through which a high-pressure gas is discharged at a side thereof; and
A supply valve connected between the front frame and the storage container to charge the high-pressure gas into the storage container, and inserted and coupled to the coupling hole of the connection plug to prevent overpressure of the storage container by the high-pressure gas being charged a manifold comprising a valve;
A support device for a high-pressure gas storage container comprising a.
9. The method of claim 8,
The connecting plug is
A coupling portion provided in a cylindrical shape with a screw thread formed on the outer circumferential surface and screwed to the boss of the storage container;
A high-pressure gas storage container including a body part extending in one direction from the coupling part to receive the high-pressure gas from the coupling part, and provided in a cylindrical shape with a diameter larger than the coupling part so as to be seated on the boss of the storage container support device.
10. The method of claim 9,
A support device for a high-pressure gas storage container in which a gas flow passage for connecting the storage container and the safety valve to communicate with each other is formed inside the coupling part and the body part.
11. The method of claim 10,
The flow path includes a first flow path recessed long from one end of the coupling part to a portion where the coupling hole is located, and a second flow path extending from the end of the first flow path in a vertical direction to communicate with the coupling hole. support for containers.
12. The method of claim 11,
A support device for a high-pressure gas storage container in which a support member is formed inside the body portion at a connection portion between the first flow path and the second flow path, and protrudes inward of the second flow path to support the safety valve.
12. The method of claim 11,
The safety valve is a support device for a high-pressure gas storage container coupled to the connection plug through a coupling.
14. The method of claim 13,
At least one step is formed inside the second flow path,
The coupling includes a seating part inserted into the second flow path to be seated on the step, and a cover part extending in one direction from the seating part, and having an outer circumferential surface protruding outward from the seating part to cover the coupling hole. A support device for high-pressure gas storage containers.

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