KR20170122334A - Anchor apparatus for cargo barrier structure - Google Patents

Abstract

An anchor apparatus for a cargo barrier structure is disclosed. According to an embodiment of the present invention, the anchor apparatus for a cargo barrier structure couples an insulating panel installed in an internal wall of cargo and at least one barrier in a stacked state, and comprises: a support plate installed on the insulating panel; an anchor rod fixing the support plate to the insulating panel; and a connection cap mounted to slide on the support plate in a state of covering the anchor rod, wherein the barrier is connected to an upper portion.

Description

{ANCHOR APPARATUS FOR CARGO BARRIER STRUCTURE}

The present invention relates to an anchor device for a cargo hold barrier structure capable of facilitating installation and permitting displacement according to thermal deformation of a barrier wall.

A barrier structure is provided on the inner wall of the cargo hold that stores the cryogenic fluid such as liquefied gas to prevent the fluid from leaking while maintaining the fluid at a cryogenic temperature.

Typically, the barrier structure of a cargo hold has a primary barrier, an upper insulation panel, a secondary barrier, and a lower insulation panel sequentially laminated from the inside to the wall in contact with the cryogenic fluid. For example, the barrier structure of the Mark III type cargo hold of GTT company adopts a method in which, when leakage of stored fluid from the primary barrier occurs, it can be blocked by the secondary barrier.

When such a barrier structure is installed, a lower insulation panel is fixed on the inner wall of the cargo hold, a secondary barrier is provided thereon, and an upper insulation panel and a primary barrier are sequentially installed on the upper part of the secondary barrier. In this process, a connection panel is installed between the upper insulation panels to connect the upper insulation panels.

However, since the conventional barrier structure of a cargo hold includes an upper insulation panel, a lower insulation panel, a connection panel, a secondary barrier, and a primary barrier, the installation process is complicated and difficult to manufacture. An example of such a barrier structure can be found in Korean Patent Publication No. 10-2012-0013207 (published on Mar. 14, 2012).

Korean Patent Publication No. 10-2012-0013207 (2012.02.14. Disclosure)

An embodiment of the present invention seeks to provide an anchor device for a cargo hold barrier structure that enables easy installation of a barrier structure.

The present invention also provides an anchor device for a cargo hold barriers structure capable of permitting displacement due to thermal deformation of a barriers while stably supporting the barriers.

According to an aspect of the present invention, there is provided a method of manufacturing a heat insulating panel, comprising: a supporting plate installed on the heat insulating panel, the heat insulating panel being installed on an inner wall of a cargo hold and one or more barriers in a laminated state; An anchor rod fixing the support plate to the heat insulating panel; And a connection cap slidably mounted on the support plate in a state where the anchor rod is covered, and the barrier cap is connected to the anchor rod at an upper portion of the anchor rod.

The connecting cap may include a flange portion surrounding the supporting plate surface. The anchor device may further include a cap supporting ring slidably supporting the flange portion of the connecting cap while being fixed to the supporting plate.

The cap support ring may include a transfer agent closure to circumferentially surround the connection cap side surface to define a range of movement of the connection cap.

Wherein the connecting cap has an inner connecting cap having an outer diameter smaller than that of the inner connecting cap and being fixed to the upper surface of the inner connecting cap, And an outer connection cap to which a primary barrier covering the barrier is connected.

The support plate, the inner connection cap, and the cap support ring are received in a receiving groove formed in an upper protective plate of the heat insulating panel, and the outer connecting cap is fixed to the upper surface of the inner connecting cap in a state of protruding outside the receiving groove. have.

The anchor rod may pass through the heat insulating panel and the support plate in the thickness direction and may be fastened.

The anchor device may further include an auxiliary support plate and a fixing nut which are fastened to the anchor rod while being accommodated in the fastening groove formed in the lower protection plate of the heat insulating panel.

The connecting cap may include a cylindrical guide ring provided at the center of the top surface for mounting the jig for positioning the center position or for mounting the jig for welding of the wall during installation of the barrier structure.

The anchor device for a cargo hold barrier structure according to an embodiment of the present invention can weld a barrier to a connection cap coupled to an adiabatic panel by an anchor rod and a support plate so that the barrier structure can be simplified in comparison with a conventional structure, An easy installation of the barrier structure can be realized.

The anchor device for a cargo hold barriers structure according to this embodiment can permit displacement due to thermal deformation of the barriers because the connection cap connected to the barriers is slidably supported. Therefore, it is possible to prevent damage due to thermal deformation of the barrier while stably supporting the barrier.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view showing a state of a cargo hold barrier structure using an anchor device for a cargo hold barrier structure according to an embodiment of the present invention; FIG.
2 is a plan view showing a primary barrier structure of a cargo hold barrier structure to which the present invention is applied.
3 is a perspective view showing a configuration of a primary barrier and a secondary barrier of a cargo hold barrier structure to which the present invention is applied.
4 is a perspective view of a substantial part of an anchor device for a cargo hold barrier structure according to an embodiment of the present invention.
5 is a cross-sectional view of a main portion of an anchor device for a cargo hold barrier structure according to an embodiment of the present invention.
6 is a view illustrating an example of confirming the position of the inner connecting cap using the jig for checking the center in the process of installing the anchor device for a cargo hold barrier structure according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are provided to fully convey the spirit of the present invention to a person having ordinary skill in the art to which the present invention belongs. The present invention is not limited to the embodiments shown herein but may be embodied in other forms. For the sake of clarity, the drawings are not drawn to scale, and the size of the elements may be slightly exaggerated to facilitate understanding.

The cargo hold to which the present invention is applied is used for storing cryogenic liquefied gas such as Liquefied Natural Gas (LNG), Liquefied Petroleum Gas (LPG), and Dimethyl Ether (DME) . In other words, these cargo holds can be used for transporting liquefied gas cargoes such as LNG carriers, LNG RV (regasification vessel) carriers, LPG carriers, or ethylene carriers, or carriers such as floating storage regasification unit (FSRU), floating production storage offloading And barge mounted power plant (BMPP) for the storage and production of liquefied gas. The liquefied gas hold can also be applied not only to marine equipment but also to land equipment for storing liquefied gas.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view showing a state of a cargo hold barrier structure using an anchor device for a cargo hold barrier structure according to an embodiment of the present invention; FIG. As shown in the figure, the cargo hold barrier structure 100 includes a heat insulating panel 110, a secondary barrier 120, a primary barrier 130, and the like, which are sequentially stacked from the cargo hold inner wall 101, And an anchor device 150 for holding the anchor device 150.

The heat insulating panel 110 may be integrally provided in a state where the lower protective plate 111, the heat insulating member 112, and the upper protective plate 113 are stacked so that the storage fluid in the cargo hold can be maintained at a cryogenic temperature through heat insulation. have. The material of the lower protective plate 111 and the upper protective plate 113 may be a plywood and the heat insulating member 112 may be made of polyurethane foam (PUF), reinforced polyurethane foam (RPUF, Reinforced PUF) .

In the present specification, the upper and lower portions are referred to as the lower portion and the upper portion, respectively, for convenience. However, the terms " upper " and " lower " The barrier structure may be installed on the bottom side of the cargo hold as in the example of FIG. 1, but may be provided on the side wall of the cargo hold or the inner surface of the upper wall. Thus, in the present specification, the term " lower " means a side closer to a wall surface and first stacked, and " upper " means a side (storage space side) laterally stacked relatively to a wall surface.

The secondary barrier 120 is installed to maintain a seal on the upper protective plate 113 of the heat insulating panel 110 to block leakage of the fluid and the primary barrier 130 is separated from the upper portion of the secondary barrier 120 It is also installed to keep the seal to block the leakage of the fluid. That is, the leakage of the fluid is blocked in a state where the primary barrier 130 is in direct contact with the stored fluid, and the secondary barrier 120 is further provided inside the primary barrier 130, Also, the leakage of fluid is blocked.

The primary barrier 130 and the secondary barrier 120 can be installed in a sealed state by connecting a metal sheet made of stainless steel, aluminum, brass, zinc, or the like. In addition, the primary barrier 130 and the secondary barrier 120 may have a plurality of wrinkles 121 and 131 protruded to correspond to thermal contraction and thermal expansion at mutually corresponding positions as shown in FIGS. 1 to 3, for example. 1, a barrier support plate 140 made of a plywood material is provided between the primary barrier 130 and the secondary barrier 120 so that the primary barrier 130 and the second barrier 120 And can be supported in a spaced apart state.

The anchor device 150 serves to bind and support the secondary barrier 120 and the primary barrier 130 stacked on the heat insulating panel 110, as shown in FIG. The anchor device 150 includes a support plate 151 installed on the upper protection plate 113 of the heat insulating panel 110, an anchor rod 152 fixing the support plate 151 to the heat insulating panel 110, An inner connection cap 153 provided on the support plate 151 and having a flange portion 153a which is in contact with the surface of the support plate 151 around the support plate 151 and a support plate 151 for preventing the inner connection cap 153 from being detached A cap support ring 154 slidably supporting the flange 153a of the inner connection cap 153 while being fixed to the upper portion of the inner connection cap 153 for installation of the primary barrier 130, ).

 4 and 5, the support plate 151 may be provided in a disc shape, and the inner connection cap 153 provided on the support plate 151 is also provided in the form of a cylinder having a flange portion 153a around the periphery thereof And the cap support ring 154 may be provided in a circular shape so as to support the flange portion 153a of the inner connection cap 153. [ The support plate 151, the inner connection cap 153 and the cap support ring 154 are accommodated in the receiving groove 114 formed in the upper protective plate 113 of the heat insulating panel 110 in the process of manufacturing the heat insulating panel 110 Lt; / RTI >

The anchor rod 152 is fastened in the thickness direction of the heat insulating panel 110 and the support plate 151 at the central position of the support plate 151 and the inner connection cap 153 is fastened after the anchor rod 152 is installed And is mounted on the support plate 151 in such a manner as to cover the head portion 152a of the anchor rod 152. [

1, the anchor rod 152 extends to the lower support plate 111 through the edge of the edge panel 150 and the auxiliary support plate 157 and the fixing nut 158 are fastened thereto And is firmly fixed to the heat insulating panel 110. The auxiliary support plate 157 to be fastened to the anchor rod 152 and the coupling groove 115 for receiving the fixing nut 158 may be formed on the lower support plate 111 side of the heat insulating panel 110.

4 and 5, the cap supporting ring 154 is fixed to the support plate 151 by welding around the flange portion 153a of the inner connection cap 153, A sliding support portion 154a slidably supporting the flange portion 153a of the inner connection cap 153 and a sliding member 154a surrounding the flange portion 153a of the inner connection cap 153 so as to separate the side periphery of the inner connection cap 153, And a step 154b. Therefore, the inner connection cap 153 can be slidably moved in the predetermined direction in the radial direction while being supported by the cap support ring 154 so as to be restricted from the support plate 151.

The sliding support portion 154a of the cap support ring 154 is held in the receiving groove 114 of the upper support plate 113 of the heat insulating panel 110 and therefore the support plate 151, the inner connection cap 153, The ring 154 is stably supported on the heat insulating panel after installation.

The upper surface of the inner connection cap 153 is maintained at the same height as the upper surface of the upper protection plate 113 of the thermal insulation panel 110 as shown in FIG. The connection end 122 of the secondary barrier 120 stacked on the upper support plate 113 can be easily connected to the upper surface of the inner connection cap 153. That is, when the secondary barrier 120 is installed, the connection end 122 of the secondary barrier 120 is naturally laid on the upper surface of the inner connection cap 153, and the upper surface of the inner connection cap 153 and the secondary barrier connection end (122) can be connected in a sealed state by welding.

Since the anchor device 150 of the present embodiment is in a state in which the inner connection cap 153 connected to the secondary barrier 120 is movably supported on the upper surface of the support plate 151, The position of the inner connection cap 153 is adjusted so that the connection of the secondary barrier 120 can be performed in a state where the center of the inner connection cap 153 is aligned with the center of the cap support ring 154 before the cap 153 is connected It needs to be adjusted.

5, when the secondary barrier 120 is placed on the inner connection cap 153 to install the secondary barrier 120, the relationship in which the cap support ring 154 is covered by the secondary barrier 120 It may be difficult to determine whether or not the inner connecting cap 153 is aligned with the center of the cap supporting ring 154. Therefore, before performing the welding of the secondary barrier 120, it is necessary to check whether the inner connecting cap 153 is positioned at the center position using the centering jig 160 shown in FIGS. 5 and 6, You can adjust the position.

 The center check jig 160 includes a support shaft 161 rotatably supported at the center of the upper surface of the inner connection cap 153, an extension 162 extending in the radial direction from the support shaft 161, a cap support ring 154 And a detection sensor 163 disposed at an extension 162 at a position corresponding to the radius of the secondary barrier 120 to detect the position of the transfer agent tip 154b of the cap support ring 154 located below the secondary barrier 120 . A cylindrical guide ring 153b for rotatably supporting the support shaft 161 is installed at the center of the upper surface of the inner connection cap 153 for mounting the centering jig 160. [

6, the central checking jig 160 rotates the extension 162 about the support shaft 161 and confirms the position of the cap support ring 154 with the detection sensor 163 The position of the inner connection cap 153 is adjusted by confirming whether the center of the inner connection cap 153 matches the center of the cap support ring 154 even when the secondary barrier 120 covers the cap support ring 154. [ . The sensing sensor 163 may be configured as a magnetic sensor when the secondary barrier 120 is a non-magnetic material and the cap support ring 154 is a magnetic material.

When the secondary barrier 120 is welded to the upper surface of the inner connection cap 153 after the position of the inner connection cap 153 is adjusted, the center check jig 160 is removed, A welding work jig (not shown) is attached to the guide ring 153b to guide the welding, so that the welding work of the secondary barrier 120 can be easily performed.

As shown in FIG. 1, when the primary barrier 130 is installed after the secondary barrier 120 is installed, the outer connecting cap 155 having a relatively smaller outer diameter than the inner connecting cap 153 is connected to the inner connecting cap 153 ) Is fixed to the upper part by welding. At this time, the outer connection cap 155 protrudes outside the receiving groove 114 of the upper protection plate 113.

After the outer connection cap 155 is installed, the barrier support plate 140 and the primary barrier 130 are sequentially stacked, and the connection end of the primary barrier 130 placed on the upper surface of the outer connection cap 155 is connected to the outer connection Welded to the cap 155 and connected in a sealed state. The outer connection cap 155 may include a cylindrical guide ring installed at the center of the upper surface for attachment of the welding work jig, like the inner connection cap 153.

The anchoring device 150 of the cargo hold barrier structure anchor device 150 of the present embodiment includes an inner connection cap 153 coupled to the heat insulating panel 110 by an anchor rod 152 and a support plate 151 and an inner connection cap 153 fixed to the inner connection cap 153, Since the secondary barrier 120 and the primary barrier 130 can be welded to the cap 155, the barrier wall structure 100 can be easily installed.

The anchor device 150 of the cargo hold barrier structure anchor device 150 of the present embodiment includes an outer connection cap 155 which is slidably supported by an inner connection cap 153 connected to the secondary barrier 120 and connected to the primary barrier 130, Since it is fixed to the movable inner connection cap 153, displacement due to thermal deformation of the primary barrier 130 and the secondary barrier 120 can be allowed. Therefore, the primary barrier 130 and the secondary barrier 120 can be stably supported while preventing damage due to thermal deformation.

The anchor device 150 includes an inner connection cap 153 and an outer connection cap 155 for coupling the secondary barrier 120 and the primary barrier 130 installed outside the heat insulating panel 110 . However, the anchor apparatus is not limited to such a configuration, and may have one connection cap connected to the barrier when one barrier is provided outside the insulation panel 110. [

100: barrier structure, 101: cargo hold inner wall,
110: a heat insulating panel, 111: a bottom protective plate,
112: heat insulating member, 113: upper protective plate,
114: receiving groove, 115: fastening groove,
120: secondary barrier, 130: primary barrier,
140: barrier support plate, 150: anchor device,
151: support plate, 152: anchor rod,
153: inner connection cap, 154: cap support ring,
155: outer connection cap, 160: jig for checking the center.

Claims (8)

An anchor device for a cargo hold barriers structure for bonding an insulating panel provided on an inner wall of a cargo hold and at least one barriers in a laminated state,
A support plate installed on the heat insulating panel;
An anchor rod fixing the support plate to the heat insulating panel; And
And a connection cap slidably mounted on the support plate in a state where the anchor rod is covered, the connection cap being connected to the barrier at an upper portion of the anchor rod. The method according to claim 1,
Wherein the connection cap has a flange portion which is in contact with the surface of the support plate,
Wherein the anchor device further comprises a cap support ring slidably supporting a flange portion of the connection cap while being fixed to the support plate. 3. The method of claim 2,
Wherein the cap support ring includes a transfer agent tip that surrounds the connection cap side surface spaced apart to define a range of movement of the connection cap. 3. The method of claim 2,
Wherein the connecting cap has an inner connecting cap having an outer diameter smaller than that of the inner connecting cap and being fixed to the upper surface of the inner connecting cap, And an outer connection cap to which a primary barrier covering the barrier is connected. 5. The method of claim 4,
The support plate, the inner connection cap, and the cap support ring are accommodated in receiving grooves formed in the upper protective plate of the heat insulating panel,
And the outer connecting cap is fixed to the upper surface of the inner connecting cap in a state of protruding outside the receiving groove. 6. The method according to any one of claims 1 to 5,
Wherein the anchor rod is coupled through the heat insulating panel and the support plate in the thickness direction. The method according to claim 6,
Further comprising an auxiliary support plate and a fixing nut fastened to the anchor rod in a state of being accommodated in a coupling groove formed in a lower protection plate of the heat insulating panel. The method according to claim 1,
Wherein the connecting cap includes a cylindrical guide ring provided at a central portion of the top surface for mounting the jig for positioning the center position or the jig for welding of the barrier during installation of the barrier structure.

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