KR20220034338A - Support device for high pressure gas storage container - Google Patents

Abstract

The present invention relates to a supporting apparatus of a high-pressure gas storage container, which is formed to interlock with generation of displacement according to a usage pressure of a gas stored inside a storage container. The supporting apparatus of the high-pressure gas storage container may comprise: an end box coupled to one side of the storage container in which a high-pressure gas is stored, and having a first long hole formed on at least one surface in the longitudinal direction of the storage container; a frame unit wherein a accommodation part for accommodating an end box is formed on one side, and a second long hole corresponding to a first long hole of the end box is formed on at least one surface is formed; and a fastening member passing through the first long hole and the second long hole to fasten the frame unit and the end box.

Description

Support device for high pressure gas storage container

The present invention relates to a support device for a high-pressure gas storage container for accommodating the high-pressure gas storage container inside and transporting and loading the high-pressure gas storage container to a specific location. It relates to a support device for a high-pressure gas storage container that is provided to interlock so that stable support is possible, and can prevent the container from being separated from the support device even when an external shock is applied.

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 with a structure (TYPE3) in which fiber-reinforced resin or reinforcing fibers are wound on the outer surface of a liner such as aluminum alloy or metal, and a structure in which reinforcing fibers are wound around a container made of reinforced plastic ( It can be classified as a TYPE4) composite storage container.

1 shows a state in which a type 4 composite storage container is coupled to a support device according to the prior art. It may be coupled to the frame portion 20 of the.

On the other hand, in the case of the TYPE4 composite storage container (S), when the gas is charged/discharged with the operating pressure, displacement occurs in the longitudinal direction. Shear stress is generated between the storage container (S) and the fixture, which may cause damage to the fixture and cause a problem in stability.

In order to solve this problem, a coupling structure was developed such that the composite storage container (S) is positioned in the longitudinal direction from the end box (10). However, this coupling structure can solve the displacement problem between the Type 4 composite storage container (S) and the end box 10 during gas charging/discharging, but the end box 10 is simply placed on the frame part 20 Therefore, there was a problem in that the end box 10 was separated from the frame unit 20 due to an external impact when the composite storage container (S) was transferred to the trailer vehicle.

Registered Patent Publication No. 10-1987357 (2019.09.30 Announcement)

The object of the present invention is to provide stable support by interlocking with the generation of displacement according to the use pressure of the gas stored inside the storage container, and high-pressure gas storage that can prevent the container from escaping from the support device even when an external shock is applied To provide a support device for a container.

The support device of the high-pressure gas storage container according to the present invention for achieving the above object is coupled to one side of the storage container in which the high-pressure gas is stored, and a first long hole is formed on at least one surface in the longitudinal direction of the storage container. end box; a frame part having a receiving part formed on one side for accommodating the end box and having a second long hole corresponding to the first long hole of the end box on at least one surface; and a fastening member penetrating the first long hole and the second long hole to fasten the frame part and the end box.

In addition, when displacement in the longitudinal direction due to a change in internal pressure of the storage container or an impact from the outside acts, the end box may be provided to be slidable in the longitudinal direction of the storage container on the frame portion.

In addition, the end box may be provided with a reinforcing member on the contact surface with the frame portion.

In addition, in the reinforcing member, a third long hole corresponding to the first long hole may be formed in a portion facing the first long hole.

In addition, the reinforcing member may be formed of a polyethylene (PE) material.

In addition, the end box may be provided in the shape of an open box at one side, and a through hole may be formed at the other side so that the boss of the storage container can be inserted.

In addition, the first long hole may be provided in the upper and lower portions and both sides of the end box, respectively.

In addition, the length of the first long hole may be formed to be greater than the length of the displacement in the longitudinal direction due to the change in internal pressure of the storage container.

In addition, the second long hole may be provided at upper and lower portions of the frame portion, respectively.

In addition, the frame portion includes a skid having a loading space on which the storage container is loaded, and an end box connection frame coupled to one side of the skid and formed with a plurality of accommodating portions so that a plurality of the end boxes can be accommodated therein; It is coupled to the other side of the skid and may include a fixing plate to which the other end of the storage container is fixed.

In addition, the fastening member is a first bolt comprising a first body portion having a screw thread formed on an outer circumferential surface and penetrating the first long hole and the second long hole, and a first head portion formed so that one side is in contact with the upper surface of the frame portion and a second bolt including a second body portion having a thread formed on an outer circumferential surface and penetrating the first and second long holes, and a second head portion having one side formed to contact a lower surface of the frame portion, and the second bolt; It is provided between the first bolt and the second bolt, and may include a connecting nut having a cylindrical shape having a screw thread to which the first body part and the second body part are fastened therein.

In addition, the fastening member includes a first flat washer provided between the first bolt and the connecting nut to distribute the pressure applied to the first head, and the connecting nut in a state of surrounding the first body of the first bolt. A first spring washer provided inside and preventing loosening of the first bolt due to vibration, and a second flat washer provided between the second bolt and the connection nut to distribute the pressure applied to the second head portion And, a second spring washer provided inside the connection nut in a state of surrounding the second body portion of the second bolt and preventing loosening of the second bolt due to vibration may be added.

The support device of the high-pressure gas storage container according to the present invention for the end box is coupled to one side of the storage container in which the high-pressure gas is stored therein, the first long hole is formed on at least one surface in the longitudinal direction of the storage container; a frame part having a receiving part formed on one side for accommodating the end box and having a second long hole corresponding to the first long hole of the end box on at least one surface; and a fastening member that penetrates the first long hole and the second long hole so that the end box can slide from the frame part and fastens the end box and the frame part.

According to the present invention, by forming the end box to which one end of the storage container is fixed is slidable with respect to the frame part, damage to the fastening member even if the storage container is stretched or contracted in the longitudinal direction when gas is charged/discharged into the storage container The vessel can be stably supported without

In addition, since the end box is coupled to the frame portion through the fastening member, the end box does not separate from the frame portion even if an impact is applied when the storage container accommodated in the support device is transported through the trailer vehicle.

In addition, the end box can improve the strength and lifespan by providing a reinforcing member on the surface in contact with the frame portion.

1 is a perspective view showing a state in which a composite storage container of Type 4 is coupled to a support device according to the prior art.
Figure 2 is a perspective view showing a state in which the storage container is coupled to the support device of the high-pressure gas storage container according to an embodiment of the present invention.
Fig. 3 is a perspective view showing a part of the support device shown in Fig. 2;
Figure 4 is an exploded perspective view of the support device shown in Figure 3;
5 is an exploded perspective view of the fastening member shown in FIG.
FIG. 6 is a view showing the operation of the support device when the gas is filled into the storage container or an impact is applied to the support device in FIG. 2 .

Hereinafter, with reference to the accompanying drawings, the support device of the high-pressure gas storage container 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.

Figure 2 is a perspective view showing a state in which the storage container is coupled to the support device of the high-pressure gas storage container according to an embodiment of the present invention, Figure 3 is a perspective view showing a part of the support device shown in Figure 2, Figure 4 is an exploded perspective view of the support device shown in FIG. 3 .

2 to 4 , the support device 100 for the high-pressure gas storage container may include an end box 110 , a frame unit 120 , and a fastening member 130 .

The support device 100 for the high-pressure gas storage container in the present invention can 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. there is.

The end box 110 is for supporting one side of the storage container (S), is coupled to one side of the storage container (S) in which the high-pressure gas is stored therein, and is on at least one side in the longitudinal direction of the storage container (S). A first long hole 110a may be formed. Here, the storage container (S) has a structure in which reinforcing fibers are wound around a container made of reinforced plastic as a main material, and a boss part (b) connected to an external gas inlet is formed on one side of a type 4 (TYPE4) composite container. can

The TYPE4 storage container (S) may have a length of about 25 to 30 mm due to the increased internal pressure due to the gas being filled therein compared to before the gas is filled therein. That is, the storage container (S) may be displaced by tension or compression according to the use pressure of the stored gas in the longitudinal direction.

The end box 110 is provided in the shape of an open box on one side, and a through hole 110b may be formed on the other side so that the boss portion b of the storage container S can be inserted. For example, by bolting and fixing one end of the storage container S to the end box 110 in a state in which the boss portion b of the storage container S is inserted into the through hole 110b, the end box 110 and The storage container (S) may be combined.

The frame part 120 is for supporting the other side of the end box 110 and the storage container (S), and a receiving part 120b for accommodating the end box 110 is formed on one side, and on at least one surface. A second long hole 120a corresponding to the first long hole 110a of the end box 110 may be formed.

Specifically, the frame unit 120 may include a skid 121 , a connection frame 122 , and a fixing plate 123 .

The skid 121 may have a loading space 121a in which the storage container S is loaded. For example, the skid 121 has a plurality of frame bars connected to each other to form a rectangular parallelepiped loading space 121a therein, and a plurality of storage containers S are arranged in multiple rows and in this loading space 121a. Fortunately, it can be loaded.

The connection frame 122 is coupled to one side of the skid 121 , and a plurality of accommodating portions 120b may be formed so that a plurality of end boxes 110 can be accommodated therein. For example, the receiving portion 120b of the connection frame 122 may be formed in a shape corresponding to the appearance of the end box 110, that is, a rectangular shape, and the end box 110 is provided in the rectangular receiving portion 120b. ) may be inserted and seated on the connection frame 122 .

The fixing plate 123 is to be fixed to the other end of the storage container (S), it may be coupled to the other side of the skid (121). For example, the fixing plate 123 may be disposed to face the connection frame 122 , and the other end of the storage container S may be bolted to one surface thereof.

The fastening member 130 may pass through the first long hole 110a and the second long hole 120a to fasten the frame unit 120 and the end box 110 . In this way, as the fastening member 130 fastens the frame part 120 and the end box 110 in a structure that penetrates the first long hole 110a and the second long hole 120a, the end box 110 is a frame It may be provided to be slidable on the part 120 in the longitudinal direction of the storage container (S).

For example, when gas is charged/discharged into the storage container (S) and displacement occurs in the longitudinal direction due to a change in internal pressure or an impact is applied from the outside when transported through a trailer vehicle, the end box 110 is a frame It is to slide on the part 120 in the longitudinal direction of the storage container (S).

Accordingly, even if the storage container S is displaced or vibrated in the longitudinal direction when the gas is charged/discharged or transported through a trailer vehicle, the end box 110 does not separate from the frame unit 120 , and the fastening member 130 ) does not generate shear stress, so it is possible to prevent the fastening member 130 from being damaged or deformed.

That is, in the prior art, there is no separate configuration for coupling the end box 110 and the frame part 120, so when charging/discharging gas into the storage container (S) or transferring the storage container (S) to a trailer vehicle, There was a problem in that the end box 110 was separated from the frame unit 120 due to the deformation of the storage container (S) or the vibration of the support device (100).

However, when the end box 110 is coupled to be slidable in the longitudinal direction of the storage container S on the frame portion 120 through the fastening member 130 as in the present invention, the separation of the end box 110 is prevented. Thus, it is possible to protect the storage container (S). In addition, since the fastening member 130 is provided in the first long hole 110a and the second long hole 120a and is not constrained by the end box 110 or the frame unit 120 , the shear stress during the slide movement of the end box 110 . Accordingly, it is possible to prevent the fastening member 130 from being damaged or deformed.

On the other hand, the length of the first long hole (110a) formed in the end box (110) may be formed to be greater than the length of the displacement in the longitudinal direction due to the change in internal pressure of the storage container (S). For example, the first long hole 110a may be provided with a length of 25 to 30 mm. This is because when the first long hole (110a) is provided to be less than 25 mm, the moving distance of the end box 110 is greater than the length of the first long hole (110a), so that the fastening member 130 may be damaged, and the first long hole (110a) This is because the size of the end box 110 may become larger than necessary when it exceeds 30 mm.

In addition, the first long hole 110a may be provided on the upper and lower portions and both sides of the end box 110 , respectively, and the second long hole 120a may be provided on the upper and lower portions of the frame unit 120 , respectively. That is, the first long hole (110a) is provided with four can be located in the upper, lower, and both sides of the end box 110, respectively, the second long hole (120a) is provided with two frame portion (120) may be respectively located at the upper and lower portions of the

This is to prepare for wear or deformation when the end box 110, which is weaker in strength compared to the frame 120, slides. That is, when the end box 110 is deformed due to continued friction, the end box 110 is turned over at 90° and coupled to the frame unit 120 again, the end box 110 can be reused.

According to the present invention, the end box 110 may be provided with a reinforcing member 140 on the contact surface with the frame portion (120).

The reinforcing member 140 is for reinforcing the strength of the end box 110 and may be formed in a rectangular pad shape made of polyethylene (PE) material. For example, four reinforcing members 140 are provided to be respectively attached to the outer surface of the end box 110 , and the first long hole 110a and the first long hole 110a corresponding to the portion facing the first long hole 110a are provided. It may be a three-hole (140a).

As such, as the reinforcing member 140 is provided on the outer surface of the end box 110 , when the end box 110 slides on the frame unit 120 , the reinforcing member 140 protects the end box 110 . Thus, it is possible to prevent wear and damage of the end box 110 .

5 is an exploded perspective view of the fastening member shown in FIG.

Referring to FIG. 5 , the fastening member 130 includes a first bolt 131 , a second bolt 132 , a connection nut 133 , a first flat washer 134 , and a first spring washer 135 . ), and a second flat washer 136 , and a second spring washer 137 .

The first bolt 131 has a first body portion 31a having a thread formed on its outer circumferential surface and penetrating the first long hole 110a and the second long hole 120a, and one side is on the upper surface of the frame portion 120 . It may include a first head portion 31b formed to be in contact.

The second bolt 132 has a screw thread formed on the outer peripheral surface and a second body portion 32a formed to pass through the first long hole 110a and the second long hole 120a, and one side is on the lower surface of the frame portion 120 . It may include a second head portion 32b formed to be in contact.

The connection nut 133 is provided between the first bolt 131 and the second bolt 132, and has a cylindrical shape in which the first body part 31a and the second body part 32a are fastened with a screw thread. can be formed. Accordingly, while the first bolt 131 is screwed to one side of the connection nut 133, the other side of the connection nut 133 is passed through the first long hole 110a and the second long hole 120a, and then the connection nut When the second bolt 132 is screwed to the other side of 133 , the end box 110 may be fastened to the frame unit 120 .

The first flat washer 134 may be provided between the first bolt 131 and the connection nut 133 to distribute the pressure acting on the first head part 31b. Accordingly, it is possible to prevent the first bolt 131 from being easily damaged by preventing abrasion of the first head portion 31b when the end box 110 slides.

The first spring washer 135 is provided inside the connection nut 133 in a state of surrounding the first body portion 31a of the first bolt 131, and prevents loosening of the first bolt 131 due to vibration. can For example, the first spring washer 135 may prevent the first bolt 131 from being easily loosened from the connection nut 133 by applying tension to the connection nut 133 through tension and restoring force.

The second flat washer 136 may be provided between the second bolt 132 and the connection nut 133 to distribute the pressure acting on the second head portion 32b. Accordingly, it is possible to prevent the first bolt 131 from being easily damaged by preventing abrasion of the second head portion 32b when the end box 110 slides.

The second spring washer 137 is provided inside the connection nut 133 in a state that surrounds the second body portion 32a of the second bolt 132, and prevents loosening of the second bolt 132 due to vibration. can For example, the second spring washer 137 may prevent the second bolt 132 from being easily loosened from the connection nut 133 by applying tension to the connection nut 133 through tension and restoring force.

6 is a view showing the operation of the support device when the gas is filled into the storage container or an impact is applied to the support device in FIG. ), the coupling structure and operation will be described as follows.

2 to 6, one side of the container is coupled to the connection frame 122 through the end box 110, and the other side is coupled to the fixing plate 123 to the loading space 121a of the frame unit 120. It can be stored and loaded inside. At this time, since the first long hole 110a and the second long hole 120a are respectively formed in the end box 110 and the connecting frame 122 in the longitudinal direction of the storage container S, the end through the fastening member 130 When the box 110 and the connection frame 122 are combined, the end box 110 may slide on the frame unit 120 by the length of the first long hole 110a and the second long hole 120a.

Accordingly, when the storage container (S) is stretched or contracted in the longitudinal direction due to a change in internal pressure of the storage container (S) when gas is charged/discharged into the storage container (S), as shown in FIG. The end box 110 is moved in the longitudinal direction of the storage container (S) on the frame portion (120). Therefore, it reduces the fatigue applied to the fastening member 130 coupling the container and the end box 110 between them, which prevents damage to the fastening member 130 and prevents the container from being separated from the support device 100 . can

In addition, when transporting the storage container (S) accommodated in the support device 100 to the trailer vehicle, even when an impact is applied, the end box 110 and the frame part 120 are mutually coupled by the fastening member 130 , so , it is possible to prevent a phenomenon in which the end box 110 to which one side of the storage container (S) is coupled is separated from the frame part (120).

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

110: end box
110a: Chapter 1 Hall
120: frame part
120a; Chapter 2 Hall
121: skid
122: connection frame
123: fixing plate
130: fastening member
131: first bolt
132: second bolt
133: connecting nut
134: first flat washer
135: first spring washer
136: second flat washer
137: second spring washer
140: reinforcing member

Claims (13)

an end box coupled to one side of a storage container in which the high-pressure gas is stored, and having a first long hole formed on at least one surface in the longitudinal direction of the storage container;
a frame part having a receiving part formed on one side for accommodating the end box and having a second long hole corresponding to the first long hole of the end box on at least one surface; and
a fastening member passing through the first long hole and the second long hole to fasten the frame part and the end box;
A support device for a high-pressure gas storage container comprising a.
According to claim 1,
When displacement in the longitudinal direction due to a change in internal pressure of the storage container or an impact from the outside acts, the end box is provided to be slidable in the longitudinal direction of the storage container on the frame part.
According to claim 1,
The end box is a support device for a high-pressure gas storage container in which a reinforcing member is provided on a contact surface with the frame portion. 4. The method of claim 3,
The reinforcing member is a support device for a high-pressure gas storage container in which a third long hole corresponding to the first long hole is formed in a portion facing the first long hole.
4. The method of claim 3,
The reinforcing member is a support device for a high-pressure gas storage container formed of a polyethylene (PE) material.
According to claim 1,
The end box is provided in the shape of a box with one side open, and the other side is a support device for a high-pressure gas storage container in which a through hole is formed so that the boss of the storage container can be inserted.
The method of claim 1,
The first long hole is a support device for a high-pressure gas storage container provided in the upper and lower portions and both sides of the end box, respectively.
The method of claim 1,
The length of the first long hole is formed to be greater than the length of the displacement in the longitudinal direction due to the change in internal pressure of the storage container.
The method of claim 1,
The second long hole is a support device for a high-pressure gas storage container provided in the upper and lower portions of the frame, respectively.
The method of claim 1,
The frame part,
A skid having a loading space in which the storage container is loaded;
An end box connection frame coupled to one side of the skid and having a plurality of accommodating portions formed therein so that a plurality of the end boxes can be accommodated therein;
A support device for a high-pressure gas storage container comprising a fixing plate coupled to the other side of the skid and to which the other end of the storage container is fixed.
According to claim 1,
The fastening member is
A first bolt including a first body portion having a thread formed on an outer circumferential surface and penetrating the first long hole and the second long hole, and a first head portion formed so that one side is in contact with the upper surface of the frame portion,
A second bolt comprising a second body portion having a thread formed on an outer circumferential surface and penetrating the first and second long holes, and a second head portion formed so that one side is in contact with the lower surface of the frame portion,
A support device for a high-pressure gas storage container including a connecting nut provided between the first bolt and the second bolt, and having a screw thread formed therein to which the first body part and the second body part are fastened.
12. The method of claim 11,
The fastening member is
a first flat washer provided between the first bolt and the connection nut to distribute the pressure acting on the first head part;
a first spring washer provided inside the connection nut in a state of enclosing the first body portion of the first bolt and preventing loosening of the first bolt due to vibration;
a second flat washer provided between the second bolt and the connecting nut to distribute the pressure applied to the second head;
The support device of the high-pressure gas storage container further comprising a second spring washer provided inside the connection nut in a state surrounding the second body portion of the second bolt, and preventing loosening of the second bolt due to vibration.
an end box coupled to one side of a storage container in which the high-pressure gas is stored, and having a first long hole formed on at least one surface in the longitudinal direction of the storage container;
a frame part having a receiving part formed on one side for accommodating the end box and having a second long hole corresponding to the first long hole of the end box on at least one surface; and
a fastening member that penetrates the first long hole and the second long hole so that the end box can slide from the frame part to fasten the end box and the frame part;
A support device for a high-pressure gas storage container comprising a.

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