KR20230100263A - Support for double wall pipe - Google Patents

Abstract

In the double pipe support according to an embodiment of the present invention, a plurality of braces disposed at a predetermined angle along the circumferential direction of the inner pipe in the space between the exterior and the inner pipe of the double pipe, formed to surround the inner pipe, and a plurality of braces are formed to surround the inner pipe. A coupling body disposed at a predetermined angle along the circumferential direction of the coupling body and a coupling portion having a fixing portion extending outwardly at both ends of the coupling body and a bearing connected to the brace and in contact with the inner surface of the exterior, the brace The end of may be connected to one surface of the fixing part.

Description

Support for double piping {SUPPORT FOR DOUBLE WALL PIPE}

The present invention relates to a support for double piping.

In general, a ship using LNG, LPG, etc. as fuel gas is installed from the storage tank to the engine or from the storage tank to the boiler with a double pipe composed of an outer pipe and an inner pipe to supply fuel gas to the engine. will do

In the case of a double pipe in which the pipe-shaped inner tube is accommodated inside the pipe-shaped exterior, a support structure capable of supporting the inner tube is formed in the space between the exterior and the inner tube to prevent the inner tube from moving or colliding with the exterior.

However, as the operating pressure of the fuel supply system for improving engine performance increases, the thickness and weight of the inner tube increase to withstand it, and accordingly, the required stiffness of the supporter increases.

One embodiment of the present invention is to provide a double pipe support that can firmly support between the exterior and the interior tube and easily absorb external impact by improving rigidity.

In the double pipe support according to an embodiment of the present invention, a plurality of braces disposed at a predetermined angle along the circumferential direction of the inner pipe in the space between the exterior and the inner pipe of the double pipe, formed to surround the inner pipe, and a plurality of braces are formed to surround the inner pipe. A coupling body disposed at a predetermined angle along the circumferential direction of the coupling body and a coupling portion having a fixing portion extending outwardly at both ends of the coupling body and a bearing connected to the brace and in contact with the inner surface of the exterior, the brace The end of may be connected to one surface of the fixing part.

The brace may include a second support member connected to one surface of the fixing part and a second support member connected to the second support member and pressurizing the inner surface of the exterior, to which the bearing is coupled.

The brace may have an end inserted between the fixing part formed in one of the plurality of coupling parts and the fixing part formed in the other adjacent coupling part.

It may further include a fastening member fastened through the fixing part formed in any one of the plurality of coupling parts and the fixing part formed in the other adjacent coupling part.

The fixing part may have an insertion groove formed on a surface facing the exterior.

The coupling part may include a fixing plate inserted into the insertion groove to press an end of the brace seated in the insertion groove.

The bearing may include a protrusion formed on one surface to have a predetermined length and connected to the brace through.

The protrusion may be spaced apart from the center of the bearing to one side in the longitudinal direction of the bearing.

The bearing may have a shape in which the thickness increases from one end in the longitudinal direction to the other end in the longitudinal direction.

The caulking part is formed as one end of the protrusion, which is exposed to the outside through the brace, is pressed toward the brace, and the bearing and the brace may be coupled by the caulking part.

The support for double piping according to an embodiment of the present invention has improved rigidity, so that it can firmly support the outer and inner tubes and easily absorb external impact.

1 is a perspective view showing a state in which a dual pipe support according to an embodiment of the present invention is installed in a double pipe.
2 is a perspective view of a support for double piping according to an embodiment of the present invention.
Figure 3 is an exploded perspective view of the dual pipe support shown in Figure 2;
Figure 4 is a cross-sectional view of the dual pipe support shown in Figure 1;
5 is a perspective view showing a state in which a modified example of a dual pipe support according to an embodiment of the present invention is installed in a double pipe.
6 is a perspective view showing a modified example of a dual pipe support according to an embodiment of the present invention.
7 is an exploded perspective view of the dual pipe support shown in FIG. 6;
8 is a cross-sectional view of the dual pipe support shown in FIG. 5;
9 is a cross-sectional view showing a state in which the position of a protrusion of a bearing is varied according to an embodiment of the present invention.
10 is a perspective view showing a modified example of a bearing according to an embodiment of the present invention.
11 is a cross-sectional view showing a state in which the position of the protrusion of the bearing shown in FIG. 10 is varied.
12 is a view showing a coupling process of a brace and a bearing according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily carry out the present invention. This invention may be embodied in many different forms and is not limited to the embodiments set forth herein. In order to clearly describe the present invention in the drawings, parts irrelevant to the description are omitted, and the same reference numerals are attached to the same or similar components throughout the specification.

In this specification, terms such as "include" or "have" are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that it does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof. In addition, when a part such as a layer, film, region, plate, etc. is said to be “on” another part, this includes not only the case where it is “directly on” the other part, but also the case where there is another part in the middle. Conversely, when a part such as a layer, film, region, plate, etc. is said to be "under" another part, this includes not only the case where it is "directly below" the other part, but also the case where another part exists in the middle.

1 is a perspective view showing a state in which a support for double pipe according to an embodiment of the present invention is installed in a double pipe, FIG. 2 is a perspective view of a support for double pipe according to an embodiment of the present invention, and FIG. 3 is shown in FIG. It is an exploded perspective view of the double pipe support, and FIG. 4 is a cross-sectional view of the double pipe support shown in FIG.

As shown in Figure 1, the double pipe support 10 according to an embodiment of the present invention is disposed in the space between the inner pipe (P1) and the outer pipe (P2) of the double pipe, a plurality of the length of the inner pipe (P1) They may be arranged at regular intervals along the direction. For example, the plurality of supports 10 may be connected to the inner pipe P1 while being rotated at different angles, and the inner pipe P1 and the outer pipe P2 may be firmly supported by these supports 10 .

2 to 4, the support 10 for a double pipe according to an embodiment of the present invention may include a brace 100, a coupling part 200, a bearing 300 and a fastening member 400. .

A plurality of braces 100 may be arranged at a constant angle along the circumferential direction of the inner pipe (P1). For example, two braces 100 are disposed at predetermined intervals, and each may be connected by a coupling part 200 and a fastening member 400 .

The brace 100 may include a first support member 110 , a second support member 120 and a connection member 130 .

The first support member 110 has a flat plate shape, and a first fastening hole 111 through which the fastening member 400 is penetrated may be formed on one surface. Accordingly, the first support member 110 may be fastened to the coupler 200 by the fastening member 400 .

The second support member 120 has a plate shape having a curved surface, and is formed to have a curvature corresponding to that of the inner tube P1 so as to contact the outer surface of the inner tube P1. In addition, a first connection hole 121 may be formed on one surface of the second support member 120 . The second support member 120 may be coupled to a bearing 300 to be described later by a protrusion 330 inserted into the first connection hole 121 . At this time, the second support member 120 can improve the rigidity of the support 10 by bringing the bearing 300 into close contact with the inner surface of the exterior P2 by means of an elastic force.

The connection member 130 has a predetermined plate shape and may connect ends of the first support member 110 and the second support member 120 . The connection member 130 can easily maintain a distance between the inner tube and the outer tube and absorb shock while being bent by an elastic force when an external force is applied or the inner tube P1 vibrates.

A plurality of coupling parts 200 may be disposed at a predetermined angle along the circumferential direction of the inner tube P1. For example, two couplers 200 are disposed at a predetermined interval, and each may be connected by a fastening member 400 .

It may include a coupling body 210, a fixing part 220, an insertion groove 230, and a second fastening hole 240.

Coupling body 210 has a plate shape having a curved surface, may be formed to surround the inner tube (P1). For example, the curvature of the coupling body 210 may be formed to correspond to the curvature of the outer surface of the inner tube (P1).

The fixing part 220 may extend from both ends of the coupling body 210 . For example, the fixing part 220 may be formed extending from the end of the coupling body 210 toward the exterior (P2) side. At this time, the fixing part 220 may be formed to extend in the radial direction of the exterior (P2).

The insertion groove 230 may be formed on one surface of the fixing part 220 . For example, the insertion groove 230 may be formed on a surface facing the exterior (P2) on the outer surface of the fixing part (220). As another example, the insertion groove 230 may extend from the fixing part 220 to the coupling body 210. The head 410 of the fastening member 400 may be accommodated in the insertion groove 230 .

The second fastening hole 240 may be formed through from the inner surface of the insertion groove 230 to the other surface of the fixing part 220 . The fastening member 400 may be through-connected to the second fastening hole 240 .

The fastening structure of the above-described brace 100 and coupling part 200 will be described as follows.

First, the first support member 110 of the brace 100 may be inserted between coupling parts 200 adjacent to each other. Specifically, the first support member 110 may be inserted between the fixing part 220 formed on one coupling part 200 and the fixing part 220 formed on the other adjacent coupling part 200 . At this time, the positions of the first fastening hole 111 and the second fastening hole 240 may be matched.

Then, the fastening member 400 may be fastened to the first fastening hole 111 and the second fastening hole 240 . For example, the fastening member 400 may be a bolt, which may pass through the first fastening hole 111 and the second fastening hole 240 and fasten it with a nut. Accordingly, the brace 100 may be coupled to the coupling part 200 to have a structure in which all of the plurality of braces 100 are connected.

Meanwhile, the bearing 300 may include a guide rail 310 , a sliding groove 320 and a protrusion 330 .

The bearing 300 has a plate shape extending to a predetermined length, and is coupled to the outer surface of the second support member 120 to contact the inner surface of the exterior P2. At this time, the bearing 300 may be bent to correspond to the shape of the second support member 120 .

In addition, a sliding groove 320 may be formed on one surface of the bearing 300, and guide rails 310 may be formed extending along the longitudinal direction of the bearing 300 on both sides of the sliding groove 320, respectively. Accordingly, the second support member 120 may be inserted between the guide rails 310 and connected to the bearing 300 while being inserted into the sliding groove 320 in a sliding manner.

The protrusion 330 may protrude from one surface of the sliding groove 320 . When the bearing 300 is coupled to the second support member 120 , the protrusion 330 may be through-connected to the first connection hole 121 of the second support member 120 . Accordingly, the bearing 300 may be prevented from being separated from the second support member 120 by the protrusion 330 .

5 is a perspective view showing a state in which a modified example of a support for double pipe according to an embodiment of the present invention is installed in a double pipe, and FIG. 6 is a perspective view showing a modified example of a support for double pipe according to an embodiment of the present invention. 7 is an exploded perspective view of the double pipe support shown in FIG. 6, and FIG. 8 is a cross-sectional view of the double pipe support shown in FIG.

Since most of the configuration of the support 10 for double piping according to the modified example is the same as the configuration of the support 10 for dual piping according to the above-described embodiment, only the differences will be described.

A plurality of coupling parts 200 may be disposed at a predetermined angle along the circumferential direction of the inner tube P1. For example, two couplers 200 are disposed at a predetermined interval, and each may be connected by a fastening member 400 .

It may include a coupling body 210, a fixing part 220, an insertion groove 230, a second fastening hole 240, and a fixing plate 250.

The insertion groove 230 may be formed on one surface of the fixing part 220 . For example, the insertion groove 230 may be formed on a surface facing the exterior (P2) on the outer surface of the fixing part (220). As another example, the insertion groove 230 may extend from the fixing part 220 to the coupling body 210.

Also, the width of the insertion groove 230 may be formed to correspond to the width of the first support member 110 . The head 410 of the fastening member 400 , the fixing plate 250 and the first support member 110 may be accommodated in the insertion groove 230 .

The second fastening hole 240 may be formed through from the inner surface of the insertion groove 230 to the other surface of the fixing part 220 . For example, a pair of second fastening holes 240 may be spaced apart from each other. The fastening member 400 may be through-connected to the second fastening hole 240 .

The fixing plate 250 has a predetermined plate shape, and a third fastening hole 251 may be formed therethrough. For example, the third fastening hole 251 may be formed to correspond to the second fastening hole 240 . As the fixing plate 250 is inserted into the insertion groove 230, the first support member 110 seated in the insertion groove 230 may be pressurized and fixed.

The fastening structure of the above-described brace 100 and coupling part 200 will be described as follows.

First, the first support member 110 of the brace 100 may be seated on one side of the insertion groove 230 . At this time, the positions of the first fastening hole 111 and the second fastening hole 240 may be matched.

Thereafter, the fixing plate 250 may be inserted into the insertion groove 230 and disposed on the upper surface of the first support member 110 . In this case, the positions of the third fastening hole 251 may coincide with the positions of the first fastening hole 111 and the second fastening hole 240 .

Then, the fastening member 400 may be fastened to the first fastening hole 111 , the second fastening hole 240 and the third fastening hole 251 . For example, the fastening member 400 may be a bolt, which may be passed through the first fastening hole 111, the second fastening hole 240, and the third fastening hole 251, and may be fastened with a nut. Accordingly, the brace 100 may be coupled to the coupling part 200 to have a structure in which all of the plurality of braces 100 are connected.

9 is a cross-sectional view showing a state in which the position of a protrusion of a bearing according to an embodiment of the present invention is varied, FIG. 10 is a perspective view showing a modified example of a bearing according to an embodiment of the present invention, and FIG. It is a cross-sectional view showing a state in which the position of the protrusion of the shown bearing is varied.

On the other hand, when the support 10 is installed in the double pipe, the second support member 120 may be pressed by the inner surface of the outer pipe P2. At this time, the second support member 120 is pushed by the inner pipe P1. ) side, the curvature may change. Accordingly, in order to increase the adhesion between the bearing 300 and the second support member 120 by compensating for the change in curvature of the second support member 120, the bearing 300 has a variable curvature as shown in FIG. can be formed

Referring to FIG. 9 , the first end 300a on one side in the longitudinal direction of the bearing 300 is adjacent to the end of the second support member 120, and the second end 300b on the other side in the longitudinal direction of the bearing 300 may be adjacent to the connecting member 130. In this case, the curvature of the bearing 300 may decrease from the first end 300a to the second end 300b.

Also, the thickness of the bearing 300 may increase from the first end 300a to the second end 300b. As shown in FIG. 9 , the second end side thickness Tb may be formed thicker than the first end side thickness Ta.

Accordingly, even when the second support member 120 is bent by the exterior (P2), the gap between the bearing 300 and the second support member 120 is prevented from occurring, so that the bearing for the exterior (P2) As the contact area of the 300 is increased, the stiffness of the support 10 can be improved.

Also, referring to FIG. 9 , the protrusion 330 may be formed at a position spaced apart from the center of the bearing 300 . For example, as shown in FIG. 9(a), the protrusions 330 are formed at a predetermined distance from the center of the bearing 300 toward the first end 300a, and as shown in FIG. 9(b), the protrusions 330 are It may be spaced apart from the center of the bearing 300 by a predetermined distance in a direction toward the second end portion 300b.

At this time, as shown in FIG. 9 (a), when the protrusion 330 is moved toward the first end portion 300a, it is deflected toward the end of the second support member 120, so that the bending section of the second support member 120 becomes longer. Depending on the elastic limit bending amount can be increased.

As shown in FIG. 9 (b), when the protrusion 330 is moved toward the second end portion 300b, it is deflected toward the connecting member 130, so that the bending section of the second support member 120 is shortened and thus the stiffness is increased. can

Accordingly, the position of the protrusion 330 may be adjusted according to the bending amount or stiffness required for the support 10 .

Meanwhile, referring to FIG. 10 , the bearing 300 according to the modified example may include a guide rail 310 , a sliding groove 320 , a second connection hole 340 , and a protrusion 330 .

The bearing 300 may have a second connection hole 340 passing through one surface of the sliding groove 320 . At this time, a rod-shaped protrusion 330 having a predetermined length may be connected to the second connection hole 340 . That is, the bearing 300 and the protrusion 330 may be formed as separate components, and the protrusion 330 may be connected through the second connection hole 340 .

At this time, the protrusion 330 is through-connected to the second connection hole 340 of the bearing 300 and the first connection hole 121 of the second support member 120, so that the bearing 300 is connected to the second support member ( 120) can be prevented.

In addition, referring to FIG. 11 , the curvature of the bearing 300 decreases from the first end 300a to the second end 300b, and the thickness of the bearing 300 varies from the first end 300a to the second end. It may increase toward (300b).

That is, the bearing 300 is formed to have a variable curvature as described above, and even when the second support member 120 is bent by the exterior (P2), there is a gap between the bearing 300 and the second support member 120. It is possible to improve the rigidity of the support 10 by preventing the occurrence of gaps and increasing the contact area of the bearing 300 with respect to the exterior (P2).

Also, the second connection hole 340 may be formed at a position spaced apart from the center of the bearing 300 . For example, as shown in FIG. 11(a), the second connection hole 340 is formed at a predetermined distance from the center of the bearing 300 toward the first end 300a, and as shown in FIG. The connection hole 340 may be formed at a predetermined distance from the center of the bearing 300 toward the second end portion 300b. A protrusion 330 may be connected to the second connection hole 340 .

At this time, as shown in FIG. 11 (a), when the protrusion 330 is moved toward the first end portion 300a, it is deflected toward the end of the second support member 120, so that the bending section of the second support member 120 becomes longer. Depending on the elastic limit bending amount can be increased.

As shown in FIG. 11 (b), when the protrusion 330 is moved toward the second end portion 300b, it is deflected toward the connection member 130, so that the bending section of the second support member 120 is shortened and thus the stiffness is increased. can

Accordingly, the positions of the second connection hole 340 and the protrusion 330 may be adjusted according to the bending amount or stiffness required for the support 10 .

12 is a view showing a coupling process of a brace and a bearing according to an embodiment of the present invention.

Referring to FIG. 12 , the double pipe support 10 may couple the brace 100 and the bearing 300 through the caulking portion 331 .

First, as the bearing 300 is connected to the brace 100 , the protrusion 330 may pass through the first connection hole 121 of the brace 100 .

The protrusion 330 may be processed by caulking. The caulking operation refers to the operation of beating the head of a rivet and the joint of a metal plate with a caulking tablet with a blunt end to make it airtight. As it is beaten and pressed with a tool such as a caulking tablet (not shown), a pressed caulking portion 331 may be formed at one end of the protruding portion 330 .

At this time, as the protrusion 330 is pressed toward the brace 100, the caulking portion 331 may adhere to one surface of the brace 100. That is, the bearing 300 and the brace 100 may be mutually coupled by the caulking part 331 .

As described above, the support 10 for double pipe according to an embodiment of the present invention includes a plurality of braces 100, coupling parts 200, bearings 300, and fastening members 400, and braces adjacent to each other 100 may have a structure in which all of the plurality of braces 100 are connected while being connected by the coupling part 200 and the fastening member 400. This may be applied to various structures such as a structure in which the brace 100 is two, as well as a structure in which there are three, four, or five braces.

As described above, the double pipe support 10 according to an embodiment of the present invention is arranged at regular intervals in the inner pipe P1 of the double pipe in a state in which the bearing 300 is coupled to the plurality of braces 100, thereby improving the appearance and the inner tube can be firmly supported and external impact can be easily absorbed, and the rigidity of the support 10 is improved due to the structure of the brace 100 and the bearing 300.

Although one embodiment of the present invention has been described above, the spirit of the present invention is not limited to the embodiments presented herein, and those skilled in the art who understand the spirit of the present invention may add elements within the scope of the same spirit. However, other embodiments can be easily proposed by means of changes, deletions, additions, etc., but these will also fall within the scope of the present invention.

10: Support for double piping
100: brace 110: first support member
111: first fastening hole 120: second support member
121: first connection hole 130: connection member
200: coupling part 210: coupling body
220: fixing part 230: insertion groove
240: second fastening hole 250: fixing plate
251: third fastening hole 300: bearing
300a: first end 300b: second end
310: guide rail 320: sliding groove
330: projection 331: caulking
340: second connection hole 400: fastening member
410: head

Claims (10)

A plurality of braces disposed at a predetermined angle along the circumferential direction of the inner pipe in the space between the outer and inner pipes of the double pipe;
A coupling portion formed to surround the inner tube and having a plurality of coupling bodies arranged at a predetermined angle along the circumferential direction of the inner tube and fixing portions extending outwardly from both ends of the coupling body; and
It is connected to the brace and includes a bearing in contact with the inner surface of the exterior,
An end of the brace is connected to one side of the fixing part for a double pipe support. According to claim 1,
The brace,
a second support member connected to one surface of the fixing part; and
A support for double piping comprising a second support member connected to the second support member, pressing the inner surface of the exterior, and to which the bearing is coupled. According to claim 1,
The brace,
A support for double pipe having an end portion inserted between the fixing part formed in any one of the plurality of coupling parts and the fixing part formed in the other adjacent coupling part.
According to claim 1,
Support for double piping further comprising a fastening member fastened through the fixing part formed in any one of the plurality of coupling parts and the fixing part formed in the other adjacent coupling part. According to claim 1,
The fixing part,
Support for double piping in which an insertion groove is formed on the surface facing the exterior. According to claim 5,
The coupling part,
Support for double piping including a fixing plate inserted into the insertion groove to press the end of the brace seated in the insertion groove. According to claim 1,
the bearing,
Formed to have a predetermined length on one side, support for double piping including a protrusion connected through the brace. According to claim 7,
The protrusion,
A support for a double pipe disposed spaced apart from the center of the bearing to one side in the longitudinal direction of the bearing. According to claim 7,
the bearing,
A support for double piping in which the thickness increases from one end in the longitudinal direction to the other end in the longitudinal direction. According to claim 7,
The protrusion,
As one end exposed to the outside through the brace is pressed toward the brace, a caulking portion is formed, and the bearing and the brace are coupled to each other by the caulking portion.

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