KR101644374B1 - Fixing and support apparatus for insulation structure - Google Patents

Abstract

A fixing region of a liquefied gas insulating structure is disclosed. The fixing support of the liquefied gas thermal insulating structure according to an embodiment of the present invention is a fixing zone of a liquefied gas thermal insulating structure in which a liquefied gas is fixed to a lower thermal insulation board and an upper thermal insulation board provided in a cargo hold, A welding portion welded to the secondary barrier provided on the upper surface of the lower heat insulating board, a coupling portion coupled to the upper heat insulating board, and a support portion supporting the member or the apparatus used in the manufacturing process of the heat insulating structure .

Description

FIELD AND SUPPORT APPARATUS FOR INSULATION STRUCTURE [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a fixing zone of a liquefied gas insulating structure, and more particularly, to a fixing zone of a liquefied gas insulating structure capable of improving the efficiency and productivity of a process for manufacturing a liquefied gas holding zone.

The liquefied gas is a liquid made by cooling or compressing gas, and is a gas phase liquid phase change industrially at room temperature for convenience of transportation and storage. One of the most widely used and important resources in liquefied gas is Liquefied Natural Gas (LNG). Liquefied natural gas refers to a colorless transparent cryogenic liquid with methane-based natural gas cooled to -162 degrees Celsius and its volume reduced to 1/600.

As such liquefied gas is used as an important energy source, an efficient transportation method capable of transporting liquefied gas from a production base to various demand sites has been examined. As part of this effort, a liquefied gas transport vessel capable of transporting large volumes of liquefied gas through the sea has been developed.

The liquefied gas transport vessel shall be provided with a liquefied gas cargo hold capable of storing and storing the liquefied gas liquefied at a cryogenic temperature. Since the liquefied gas has a higher vapor pressure than the atmospheric pressure and has a boiling temperature of ultra-low temperature, in order to safely store and store such liquefied gas, the liquefied gas storage window must be made of a material that can withstand the extremely low temperature, It should be designed with a unique insulation panel structure to prevent intrusion.

Generally, the heat insulating structure of the liquefied gas holding window is composed of a structure in which a primary barrier, an upper insulating board, a secondary barrier and a lower insulating board are sequentially connected. This is to prevent additional leakage of the fluid in the secondary barrier, even if there is a small leakage of cryogenic fluid in the primary barrier. The secondary barrier includes a secondary kitchen wall and a secondary auxiliary barrier.

Since the size of the liquefied gas hold is very large, tens of thousands of units are installed in the unitary box as the insulation structure of the liquefied gas hold. The heat insulating structure of the liquefied gas cargo holds is characterized in that a plurality of lower heat insulating boards having the same thickness are fixed on the inner wall of the cargo hold, a secondary main wall is provided on the lower heat insulating board, an upper heat insulating board and a primary barrier .

On the other hand, when fixing the plurality of lower heat insulating boards, the lower heat insulating boards are spaced apart from each other by a predetermined distance between the adjacent lower heat insulating boards. Such a gap is provided between the secondary walls adjacent to each other to ensure continuity and hermeticity.

The secondary wall and the secondary auxiliary barrier are welded together. Generally, the liquefied gas holding window is very large, so that the welding process is performed using an automatic welding device or the like.

In the welding process, it is necessary to fix and support a device such as a guide rail guiding the traveling direction of the welding device or the welding device. In the related art, a welding device or a guide rail Were fixed and supported.

The stud bolts are installed on the lower heat-insulating board so as to protrude from the upper side of the lower heat-insulating board. In order to ensure the hermeticity of the heat-insulating structure, the stud bolts are fixed to the heat- In a device such as a welding device or a guide rail, a fixing member such as a nut is fixed to and supported by a projecting thread of a stud bolt.

In this case, if the welding apparatus or guide rail is fixed to and supported by the thread of the stud bolt, there is a fear that the thread is worn or damaged, thereby causing a problem that affects the joining performance between the upper insulating board and the lower insulating board Lt; / RTI >

In addition, since the stud bolts are firmly fixed on the heat insulating structure, they are installed in a welding manner. Therefore, when the stud bolts are damaged, the efficiency of the process is decreased and unnecessary labor and time are required.

Korean Patent Laid-Open Publication No. 10-2012-0013228 (published on February 14, 2012)

An embodiment of the present invention is to provide a fixing zone for a liquefied gas insulating structure capable of improving the efficiency and productivity of a process for manufacturing a heat insulating structure of a liquefied gas holding window.

An embodiment of the present invention seeks to provide a fixing region of a liquefied gas insulating structure capable of stably and effectively fixing and installing an upper insulating board and a lower insulating board.

An embodiment of the present invention is to provide a fixing region of a liquefied gas insulating structure capable of improving the quality and accuracy of a welding process of a heat insulating structure of a liquefied gas holding window.

The embodiment of the present invention is intended to provide a fixing area for a liquefied gas insulating structure which can increase the airtightness and continuity between components as a simple structure.

An embodiment of the present invention is to provide a fixing region of a liquefied gas insulating structure capable of stably receiving and storing liquefied gas by improving the performance of the liquefied gas insulating structure.

According to an aspect of the present invention, there is provided a fixing zone of a liquefied gas insulating structure for fixing and joining a lower heat insulating board and an upper heat insulating board provided in a liquefied gas holding window, A welding portion welded to the secondary barrier provided on the upper surface of the heat insulating board, a coupling portion coupled to the upper heat insulating board, and a support for supporting a member or device used in the manufacturing process of the heat insulating structure .

The support portion may be provided at an end portion of the coupling portion and include a thread formed on an outer circumferential surface.

The supporting portion may be provided with a locking protrusion provided at an end of the coupling portion.

The supporting portion may be provided at an end portion of the coupling portion and includes a coupling hole to which the member or the device is coupled.

The supporting portion may be provided by being provided with a supporting surface in which at least one side surface of the coupling portion is formed as a flat surface.

The fixed support may be provided with at least one anti-rotation preventing part having at least one side surface formed in a flat surface.

The fixing support may further include a loosening preventing portion formed at least on one side in a plane, and the supporting portion may include a binding opening to which the member or the device is bound, and the binding opening may be provided in the anti- .

The fixed support of the liquefied gas thermal insulating structure according to the embodiment of the present invention has the effect of improving the efficiency and productivity of the process of manufacturing the heat insulating structure of the liquefied gas holding window.

The fixed support of the liquefied gas thermal insulating structure according to the embodiment of the present invention has the effect of improving the quality and accuracy of the welding process of the heat insulating structure.

The fixed support of the liquefied gas thermal insulating structure according to the embodiment of the present invention has the effect of stably connecting and fixing the upper and lower insulation boards.

The fixed support of the liquefied gas thermal insulating structure according to the embodiment of the present invention has a simple structure and has an effect of enhancing the hermeticity and continuity of the thermal insulating structural body.

The fixed support of the liquefied gas insulating structure according to the embodiment of the present invention has the effect of reducing unnecessary labor and process.

The fixed support of the liquefied gas thermal insulating structure according to the embodiment of the present invention has the effect of improving the performance and quality of the heat insulating structural body.

FIG. 1 is a perspective view showing an example of a heat insulating structure of a liquefied gas holding window to which a fixing plate of a liquefied gas insulating structure according to an embodiment of the present invention is applied.
FIG. 2 is a cross-sectional view of the liquefied gas thermal insulating structure according to the embodiment of the present invention, which is installed in a liquefied gas thermal insulating structure.
3 is a cross-sectional view illustrating a fixing plate of a liquefied gas insulating structure according to a first embodiment of the present invention.
4 is a perspective view showing a fixing region of the liquefied gas insulating structure according to the first embodiment of the present invention.
5 is a cross-sectional view illustrating a fixing plate of a liquefied gas insulating structure according to a second embodiment of the present invention.
6 is a perspective view showing a fixing region of a liquefied gas insulating structure according to a second embodiment of the present invention.
7 is a cross-sectional view showing a fixing plate of a liquefied gas insulating structure according to a third embodiment of the present invention.
8 is a perspective view showing a fixing region of a liquefied gas insulating structure according to a third embodiment of the present invention.
9 is a cross-sectional view showing a fixing plate of a liquefied gas insulating structure according to a fourth embodiment of the present invention.
10 is a perspective view showing a fixing region of a liquefied gas insulating structure according to a fourth embodiment of the present invention.
11 is a cross-sectional view illustrating a fixing plate of a liquefied gas insulating structure according to a fifth embodiment of the present invention.
12 is a perspective view showing a fixing region of a liquefied gas insulating structure according to a fifth embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments described below are provided by way of example so that those skilled in the art will be able to fully understand the spirit of the present invention. The present invention is not limited to the embodiments described below, but may be embodied in other forms. In order to clearly explain the present invention, parts not related to the description are omitted from the drawings, and the width, length, thickness, etc. of the components may be exaggerated for convenience. Like reference numerals designate like elements throughout the specification.

The liquefied gas hold can be used to store and transport cryogenic liquefied gas. Liquefied gas is a liquid made by cooling or compressing gas. It includes Liquefied natural gas (LNG), Liquefied petroleum gas (LPG), and Dimethyl ether (DME).

Liquefied gas cargo holds include liquefied gas carriers such as LNG carrier, LNG RV (regasification vessel) carrier, LPG carrier or ethylene carrier, FSRU (Floating Storage Regulation Unit), FPSO (Floating Production Storage Offloading) Or Barge Mounted Power Plant (BMPP), or to marine floating plants with vaporization facilities. In addition, the liquefied gas cargo holds include not only the facilities installed on the sea, but also those used for facilities to store or produce liquefied gas installed on land.

Hereinafter, a membrane-type cargo hold of a liquefied gas holding cargo will be described as an example. FIG. 1 is a perspective view showing an example of a liquefied gas holding space insulation structure to which a fixing plate 100 of a liquefied gas insulating structure according to an embodiment of the present invention is applied. FIG. 2 is a cross- Sectional view showing a state in which the liquefied gas insulating structure according to the embodiment is installed on the liquefied gas insulating structure. FIG. 1 and FIG. 2 are provided as an example to facilitate understanding of the present invention, and the components not related to the present invention may be variously changed.

1 and 2, a liquefied gas holding window surrounds a space capable of accommodating liquefied gas and includes a primary barrier 50 in direct contact with the liquefied gas, and a primary barrier 50 surrounding the primary barrier 50, A liquefied gas insulating structure that is insulated from the outside, and an outer wall that surrounds and supports the liquefied gas insulating structure.

The heat insulating structure can be made of a double heat insulating structure in order to improve the heat insulating performance and to facilitate repair and maintenance. Specifically, the heat insulating structure of the liquefied gas holding window may include a lower heat insulating board 20 installed on the outer wall side and an upper heat insulating board 30 installed on the upper side of the lower heat insulating board 20. [ An inner hull can be used as the outer wall and supports the load of the storage fluid.

The lower insulation board 20 may be coupled to the outer wall by various fixing members including a stud bolt or the like so that the lower insulation panel 20 can be firmly fixed to the outer wall. The lower reinforcement panel 21 may be made of a material such as plywood or the like and may be attached to the bottom surface of the lower heat insulation board 20 using an adhesive such as epoxy glue or the like.

On the upper portion of the lower insulation board 20, a lower sub-panel 22 may be laminated for installing a secondary barrier 40 to be described later. The lower sub-panel 22 may be made of a material such as plywood or the like as the lower reinforcement panel 21 and may be attached to the lower heat-insulating board 20 using an adhesive such as epoxy glue.

An upper portion of the lower heat insulating board 20 may be provided with a fixing region 100 for fixing the upper insulating board 30 to the liquefied gas insulating structure. The fixing plate 100 may be partially inserted into the lower sub-panel 22 and may be coupled to the upper heat-insulating board 30 to be described later. After the fixing plate 100 is mounted on the lower sub-panel 22, it is arc-welded with a secondary barrier 40 (to be described later) to maintain air-tightness. Various embodiments of the stationary area 100 and a detailed description thereof will be described later with reference to Figs. 3 to 12. Fig.

The insulating structure of the liquefied gas hold can include a secondary barrier 40 interposed between the upper and lower insulating boards 30 and 20. The secondary barrier 40 protects the lower insulation board 20 even if the primary barrier 50 loses airtightness, thereby greatly reducing the time and cost required for repair and maintenance.

The secondary barrier 40 may be made of a metallic material such as an INVAR, stainless steel (SUS), or an aluminum alloy in the same manner as the primary barrier 50, and may be formed of a rigid triplex and a shuffle triplex (Supple triplex) can be used.

The secondary barrier 40 may be attached to the lower insulation board 20 by welding. When the secondary barrier 40 is attached by welding, it is welded to an anchor strip 24 made of a metal material and joined to the lower sub-panel 22. The anchor strip 24 may be mechanically coupled to the lower sub-panel 22 by means of a rivet or the like and the anchor strip 24 may be received in a groove formed in the lower sub- As shown in Fig.

The anchor strip 24 is positioned below the weld line during welding between adjacent sheets of the secondary barrier 40 as described later, so that the secondary barrier 40 sheet can be prevented from being deformed by welding heat. The anchor strips 24 may be arranged in different directions to form an intersection. For example, two strips orthogonal to each other.

In Fig. 1, eight lower insulation boards 20 are disposed adjacent to each other, and a secondary barrier 40 having a shape corresponding to the shape of the anchor strip 24 provided on the lower sub-panel 22 is formed in eight lower insulation But it is not limited to the number and the shape of the board 20.

The secondary barrier 40 may be composed of a plurality of secondary barrier 40 sheets and the secondary barrier 40 may have a hole through which the fixing base 100 may pass. After the installation of the secondary barrier 40 is completed, the secondary barrier 40 and the fixing plate 100 are welded to each other to ensure airtightness and continuity of the heat insulating structure.

After one secondary barrier 40 sheet is fixed, another secondary barrier 40 sheet is fixedly installed on one adjacent side. At this time, the sheets of the secondary barrier 40 and the sheets of the secondary barrier 40 adjacent to each other are disposed so as to overlap with each other on the adjacent edges.

The secondary barrier 40 may include a corrugation 41 to have a low surface stiffness. The corrugated portion 41 can elastically deform its shape corresponding to the thermal stress applied to the secondary barrier 40, thereby reducing the thermal stress at the welded portion.

The secondary barrier 40 includes a first corrugation 41-1 and a second corrugation 41-2 which are arranged in different directions and an intersection 42 where the two corrugations intersect. The thermal stress acting in the in-plane direction of the secondary barrier 40 can be relieved by the wrinkles 41 in different directions. That is, the thermal stress acting in the longitudinal direction of the first wrinkled portion 41-1 is canceled by the elasticity of the second wrinkled portion 41-2, and the thermal stress acting in the longitudinal direction of the second wrinkled portion 41-2 The thermal stress can be solved by the stretchability of the first wrinkle portion 41-1.

In FIG. 1, the two wrinkles 41 are arranged in directions orthogonal to each other. However, the wrinkles 41 may be formed in various numbers according to design requirements. For example, when the folds are arranged in three directions, they may be provided at an angle of 60 degrees with respect to each other.

The corrugated portion 41 provided in the secondary barrier 40 may be formed in a convex shape downward and may be located at the boundary of the adjacent lower heat-insulating board 20. Chamfer is formed at the corner of the lower heat insulating board 20 to prevent interference with the corrugated portion 41.

An upper reinforcing panel 31 may be coupled to the bottom surface of the upper insulating board 30 so that the upper insulating board 30 can be firmly fixed to the lower insulating board 20. The upper reinforcing panel 31 may be made of a material such as plywood or the like and may be attached to the upper heat insulating board 30 using an adhesive such as epoxy glue.

The upper insulating board 30 and the upper reinforcing panel 31 are provided with through holes 30a and 31a so that the fixing plate 100 can be inserted or inserted. A thread is formed on the inner circumferential surface of the through holes 30a and 31a so that the upper heat insulating board 30 can be fixedly installed by being screwed with the engaging portion 120 of the fixing plate 100. [ The airtightness can be maintained by inserting the foam plug 30b into the through holes 30a and 31a.

The upper insulating board 30 may be provided in a size and shape corresponding to the area where the two lower insulating boards 20 are disposed adjacent to each other. The upper insulating board 30 may be fixed by the two fixing grounds 100, Can be prevented.

An upper sub-panel 32 may be provided on the upper surface of the upper insulation board 30 for installing the primary barrier 50. The upper sub-panel 32 may be made of a material such as plywood or the like and may be attached to the upper heat-insulating board 30 using an adhesive such as epoxy glue or the like.

An anchor strip (34) may be provided on the upper surface of the upper sub-panel (32). The anchor strip 34 may be made of a metal such as SUS and welded to the primary barrier 50 and may be mechanically coupled to the upper sub-panel 32 by rivets or the like. A groove 32a may be formed on the upper surface of the upper sub-panel 32 so that the anchor strip 34 may be seated and the anchor strip 34 may not protrude from the upper surface of the upper sub-

The anchor strips 34 may be arranged in different directions to form an intersection. For example, two strips orthogonal to each other and may be provided at a position corresponding to a corner shape of the primary barrier 50.

The primary barrier 50 is welded to the anchor strip 34 of the upper sub-panel 32. The primary barrier 50 may be made of a metal material such as INVAR, stainless steel (SUS), or aluminum alloy so as to maintain its physical and chemical state even at a low temperature. The primary barrier 50 may be formed by connecting a plurality of unit primary barrier 50 sheets, and they are bonded and bonded to each other to secure airtightness.

Because the primary barrier 50 is in direct contact with the cryogenic storage fluid, it is exposed to rapid contraction and expansion. The primary barrier 50 may accumulate fatigue due to repeated heat shrinkage and thermal expansion, or may damage the welded portion during heat shrinkage and degrade the airtightness. Due to this problem, the primary barrier 50 includes the corrugations 51 to have an in-plane stiffness. The corrugated portion 51 can elastically deform its shape corresponding to the thermal stress applied to the primary barrier 50, thereby reducing the thermal stress at the welded portion.

The primary barrier 50 includes first and second corrugated portions 51-1 and 51-2 disposed at different directions and an intersection portion 52 where the two corrugations intersect with each other. The thermal stress acting in the in-plane direction of the primary barrier 50 can be relieved by the wrinkles 51 in different directions. That is, the thermal stress acting in the longitudinal direction of the first wrinkled portion 51-1 is canceled by the elasticity of the second wrinkled portion 51-2, and the thermal stress acting in the longitudinal direction of the second wrinkled portion 51-2 Can be solved by the stretchability of the first wrinkled portion 51-1.

On the other hand, since the liquefied gas holding window is generally large in size, the number of secondary barriers 40 to be welded is also very large. Accordingly, the secondary barrier 40 is welded using an automatic welding device. In order to operate the automatic welding device, an automatic welding device or a guide rail or the like is installed as a component such as a stud bolt of a heat insulating structure or a separate structure And the automatic welding operation is performed after fixing and supporting.

However, when a member or an apparatus used in a manufacturing process of an insulating structure such as an automatic welding device or a guide rail is fixed and supported on a component such as a stud bolt of a heat insulating structure, the thread of the stud bolt is worn, There is a possibility of causing a problem, and when a separate structure is installed and supported in the heat insulating structure, unnecessary labor and time are required, and the efficiency of the process is deteriorated. Therefore, there is a need for a structure that does not require unnecessary labor and process while stably fixing and supporting a member or apparatus used in a manufacturing process of a heat insulating structure.

Figs. 3 and 4 are views showing the fixing plate 100 of the liquefied gas-insulating structure according to the first embodiment of the present invention, and Figs. 3 and 4 are respectively a sectional view and a perspective view.

3 and 4, the fixing region 100 of the liquefied gas insulating structure according to the first embodiment of the present invention includes a fixing portion 130 to be coupled to the lower heat insulating board 20, A welding part 140 welded to the secondary barrier 40 and a support part 110 for supporting a member or an apparatus used in a manufacturing process of the heat insulating structure.

The fixing portion 130 is inserted into the lower sub-panel 22 coupled to the upper surface of the lower heat-insulating board 20 so that the lower sub-panel 22 is inserted into the fixing holes 22a, (See FIG. 2). A screw thread is formed on the outer circumferential surface of the fixing portion 130 and a screw thread is formed on the inner circumferential surface of the fixing hole 22a of the lower auxiliary panel 22 to fix the fixing portion 130 And the fixing hole 22a of the lower sub-panel 22 are screwed together so that the fixing station 100 can be fixedly installed on the lower sub-panel 22. [

A welding portion 140 welded to the secondary barrier 40 may be provided on the upper portion of the fixing portion 130. The welded portion 140 may be provided in a disc shape having an outer diameter larger than the outer diameter of the fixing portion 130 and may have a thickness corresponding to the thickness of the secondary barrier 40 for smooth welding with the secondary barrier 40 . ≪ / RTI >

The joining portion 120 may be provided on the upper side of the welding portion 140 so as to protrude upward with reference to the lower sub-panel 22 and the secondary barrier 40. Threading is provided on the outer circumferential surface of the joint portion 120 and threads formed on the upper reinforcing panel 31 and the holes 30a and 31a provided on the upper heat insulating board 30 are formed on the inner circumferential surface, The upper 120, the upper reinforcing panel 31, and the upper heat insulating board 30 may be screwed and fixed.

The support portion 110 may be provided on the upper side of the coupling portion 120. The supporting part 110 also has threads 111 on the outer circumferential surface like the coupling part 120 so as to be able to stably support the member or the device by screwing with a member used in the manufacturing process of the heat- have. The outer diameter of the support portion 110 is formed to be smaller than the outer diameter of the coupling portion 120 so that when the coupling portion 120 is inserted into the holes of the upper reinforcing panel 31 and the upper heat insulating board 30, May not be generated.

A dead anti-rotation part 150 may be provided between the joint part 120 and the weld part 140. The anti-idling portion 150 is formed on at least one side surface in a plan view so that when the fixing portion 130, the engaging portion 120 or the supporting portion 110 is rotated for screwing, So that occurrence of idling can be prevented. In FIG. 4, the anti-rotation preventing part 150 is shown as being flat on both sides, but the number and direction of the plane may be variously changed.

FIGS. 5 and 6 are views showing a fixing region 100 of a liquefied gas insulating structure according to a second embodiment of the present invention, and FIGS. 5 and 6 are respectively a sectional view and a perspective view.

5 and 6, the fixing region 100 of the liquefied gas insulating structure according to the second embodiment of the present invention includes a fixing portion 130 to be coupled to the lower heat insulating board 20, A welding part 140 welded to the secondary barrier 40 and a support part 110 for supporting a member or an apparatus used in a manufacturing process of the heat insulating structure. Hereinafter, the same components as those of the first embodiment of the present invention will not be described in detail.

The supporting part 110 according to the second embodiment of the present invention may be provided on the upper side of the engaging part 120. The supporting part 110 may be provided at an upper end of the coupling part 120 and may include a locking protrusion 112 for fastening a member or a device used in the manufacturing process of the heat insulating structure. The locking protrusion 112 is provided at the upper end of the fixing plate 100 and is formed to be smaller than the outer diameter of the fitting portion 120 so that the member or the apparatus can be stably held on the locking protrusion 112 side. The outer diameter of the end portion of the support portion 110 is smaller than the outer diameter of the coupling portion 120 so that when the coupling portion 120 is inserted into the holes 30a and 31a of the upper reinforcing panel 31 and the upper heat insulating board 30 So that interference by the support portion 110 does not occur.

FIGS. 7 and 8 are views showing a fixing region 100 for a liquefied gas insulating structure according to a third embodiment of the present invention, and FIGS. 7 and 8 are respectively a sectional view and a perspective view.

7 and 8, the fixing plate 100 of the liquefied gas thermal insulating structure according to the third embodiment of the present invention includes a fixing part 130 to be coupled to the lower heat insulating board 20, A welding part 140 welded to the secondary barrier 40 and a support part 110 for supporting a member or an apparatus used in a manufacturing process of the heat insulating structure. Hereinafter, the same components as those of the first embodiment of the present invention will not be described in detail.

The supporting part 110 according to the third embodiment of the present invention may be provided at the upper end of the coupling part 120. The supporting portion 110 may include a binding hole 113 to which a member or device used in the manufacturing process of the heat insulating structure is bound. A ring or a bar (not shown), which is connected to a member or a device, is inserted into the binding opening 113 and can be stably fixed and supported. The outer diameter of the support portion 110 is formed to be smaller than the outer diameter of the coupling portion 120 so that interference of the support portion 110 when the coupling portion 120 is inserted into the holes of the upper reinforcing panel 31 and the upper heat insulating board 30 May not be generated.

9 and 10 are views showing a fixing plate 100 for a liquefied gas insulating structure according to a fourth embodiment of the present invention, and Figs. 9 and 10 are respectively a sectional view and a perspective view.

9 and 10, the fixing region 100 of the liquefied gas insulating structure according to the fourth embodiment of the present invention includes a fixing portion 130 to be coupled to the lower heat insulating board 20, A welding part 140 welded to the secondary barrier 40 and a support part 110 for supporting a member or an apparatus used in a manufacturing process of the heat insulating structure. Hereinafter, the same components as those of the first embodiment of the present invention will not be described in detail.

The supporting part 110 according to the fourth embodiment of the present invention may be provided with a supporting surface 114 on which at least one side of the supporting part 110 is formed in a plane. The support portion 110 may be provided as a support surface 114 formed on both sides of the central portion of the coupling portion 120 in parallel and the support surface 114 may be a clamp (Not shown) to stably fix and support the member or the apparatus. Even though the supporting portion 110 is formed as the flat supporting surface 114 on one side or both sides of the coupling portion 120, since the threads of the same pitch are formed in the portion where the supporting surface 114 is not formed, The upper reinforcing panel 31 and the upper insulating board 30 can be screwed.

Figs. 11 and 12 are views showing a fixing region 100 of a liquefied gas insulating structure according to a fifth embodiment of the present invention, and Figs. 11 and 12 are respectively a sectional view and a perspective view.

11 and 12, the fixing region 100 of the liquefied gas insulating structure according to the fifth embodiment of the present invention includes a fixing portion 130 to be coupled to the lower heat insulating board 20, A welding portion 140 welded to the secondary barrier 40 and a connection portion 120 to be coupled to the secondary barrier 40. The welding portion 140 is welded to the secondary barrier 40, (150), and a support part (110) for supporting a member or a device used in a manufacturing process of the heat insulating structure. Hereinafter, the same components as those of the first embodiment of the present invention will not be described in detail.

The supporting part 110 according to the fifth embodiment of the present invention may include a binding hole 115 to which a member or device used in the manufacturing process of the heat insulating structure is bound. A binding orifice 115 is provided in the anti-spin preventing part 150 to insert a ring or a bar (not shown) or the like connected to the member or the apparatus, thereby stably fixing and supporting the member or the apparatus. The coupling 115 may be formed through the plane of the anti-rotation member 150, but may be formed in various directions according to design requirements.

The fixing zone 100 of the liquefied gas thermal insulating structure according to the embodiment of the present invention having the above-described structure is configured such that a member or an apparatus used in the manufacturing process of the heat insulating structure is stably fixed And it has an effect of improving efficiency and productivity of a manufacturing process.

Particularly, when the device fixed and supported by the stationary plate 100 is a welding device or a guide rail, the welding quality of the secondary barriers 40 is improved and the performance of the liquefied gas insulating structure is improved.

In addition, a member or a device (not shown) used in the manufacturing process of the heat insulating structure by using the fixing member 100 for fixing the upper heat insulating board 30 on the lower heat insulating board 20 without having to install and remove a separate member, So that it is possible to reduce the unnecessary labor and process for installing and removing the separate members for supporting it, and to shorten the process time.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, You will understand. Accordingly, the true scope of the invention should be determined only by the appended claims.

20: lower insulation board 21: lower reinforcement panel
22: lower sub-panel 30: upper insulating board
31: upper reinforcing panel 32: upper auxiliary panel
40: secondary barrier 50: primary barrier
100: fixing station 110: supporting unit
111: thread 112:
113, 115: coupling means 114: support surface
120: coupling portion 130:
140: welding portion 150: anti-idle portion

Claims (7)

A fixing zone of a liquefied gas insulating structure for fixing liquefied gas by joining a lower heat insulating board and an upper heat insulating board provided in a cargo hold,
A fixing unit coupled to the lower heat insulating board,
A welded portion welded to the secondary barrier provided on the upper surface of the lower heat-
An engaging portion coupled to the upper heat insulating board,
A supporting portion for supporting a member or a device used in a manufacturing process of the heat insulating structure;
Wherein at least one side surface is formed in a flat surface. The method according to claim 1,
The support
And a thread formed on an outer circumferential surface of the fixing portion of the liquefied gas insulating structure. The method according to claim 1,
The support
And a locking projection provided at an end of the coupling portion. A fixing zone of a liquefied gas insulating structure for fixing liquefied gas by joining a lower heat insulating board and an upper heat insulating board provided in a cargo hold,
A fixing unit coupled to the lower heat insulating board,
A welded portion welded to the secondary barrier provided on the upper surface of the lower heat-
An engaging portion for engaging with the upper heat insulating board,
And a support for supporting a member or a device used in a manufacturing process of the heat insulating structure,
The support
And a coupling means provided at an end of the coupling portion, the coupling means being coupled to the member or the device. A fixing zone of a liquefied gas insulating structure for fixing liquefied gas by joining a lower heat insulating board and an upper heat insulating board provided in a cargo hold,
A fixing unit coupled to the lower heat insulating board,
A welded portion welded to the secondary barrier provided on the upper surface of the lower heat-
An engaging portion for engaging with the upper heat insulating board,
And a support for supporting a member or a device used in a process of manufacturing the heat insulating structure,
The support
Wherein at least one side surface of the coupling portion is formed as a flat support surface. delete The method according to claim 1,
Wherein the support portion includes a binding hole to which the member or the apparatus is bound,
And the binding claw is provided in the idling prevention portion.

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