KR20170068193A

KR20170068193A - Securing device for insulation system of self supporting type tank and insulation system with the same

Info

Publication number: KR20170068193A
Application number: KR1020150175096A
Authority: KR
Inventors: 황범석; 박성우; 김광석; 김재웅; 강중규
Original assignee: 대우조선해양 주식회사
Priority date: 2015-12-09
Filing date: 2015-12-09
Publication date: 2017-06-19
Also published as: KR101788757B1

Abstract

The present invention relates to a method for preventing leakage of liquid cargo stored in a stand-alone tank installed on a ship, comprising the steps of: providing a barrier to be coupled to the body of the independent tank and a heat insulating block An inserting portion for inserting into a wall for preventing the leakage of the liquid cargo stored in the independent tank coupled to the body of the independent tank, and an inserting portion for inserting the inserting portion And a primary coupling cap including a barrier portion provided with an enlarged diameter and having a hole through which a stud formed in the body of the independent tank can be inserted. Thus, the insulation of the independent tank- According to the system, it is possible to reduce the load and risk to the insulation, and the function to prevent leakage It is possible to effectively reduce the risk of breakage of the sheet attached between the panels, minimize the deformation in the thickness direction, and minimize leakage through the securing device for securing the adiabatic system.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a retention device assembly for an insulation system for an independent tank type cargo hold, and a heat insulation system including the same.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a securing device assembly for a cargo hold insulation system and an insulation system including the same, and more particularly, to a securing device assembly applied to an insulation system of an independent tank- .

LNG carriers are classified into two types, one of which is largely independent of the cargo container system, and the other of which is a membrane cargo hold in the hull.

Independent tank types include spherical moss (MOSS) and rectangular SPB. Membrane types include GT-96, Mark-III, and CS1.

On the other hand, the independent tank type is divided into type A, type B and type C based on the IMO IGC code, and it is required to design a structure capable of preparing for insulation and leakage to store cryogenic liquid contents.

The most commonly used type B independent tank type is made by attaching a relatively hard insulating panel such as polyurethane to a tank body made of an alloy of aluminum alloy, SUS and 9% nickel, which is resistant to low temperature such as nickel, On a plurality of tank supports.

This type B independent tank type cargo holds should be constructed in accordance with the IGC code standards for insulation and leakage. The insulation system of the type B independent tank type cargo holds is composed of a primary barrier corresponding to the tank structure, And a secondary barrier comprising a thermal barrier and a drip tray that are partially constructed at the bottom.

Figs. 1 and 2 illustrate such a conventional insulation system for an independent tank-type cargo hold. Fig. 1 and Fig. 2 differ from the means for fixing the insulation panel to the tank.

The conventional insulation system of the independent tank-type cargo hold is constituted by fixing the panel for insulation to the outer surface of the tank.

That is, as shown in Fig. 1, the stud 1 is attached to a predetermined position outside the tank, and the leveling member 2 is placed so that the space between the tank and the heat insulating system is constant.

The heat insulating panel 3 serves as a heat insulating and leakage preventing member and a securing device 4 is inserted into a hole of the heat insulating panel 3 so as to be fastened to the stud 1.

A gap is provided between the panel and the panel for installation and construction. After inserting and adhering the heat insulating member 5 to the corresponding portion, the panel is finished with the use of the finish sheet (6) Thereby preventing leakage that may occur.

Alternatively, as shown in Fig. 2, grooves are formed in the leveling member 2-1 instead of studs, and the securing device 4-1 is inserted in such grooves.

However, in such a conventional heat insulation system, since the heat insulating panel must perform both the role of heat insulation and the function of a leakage barrier, there is a problem that its shape and construction method are complicated to prevent water leakage besides insulation.

Also, since the heat shrinkage of the heat insulating panel is large, the sheet attached between the panel and the panel for finishing is stretched in the width direction and compressed in the longitudinal direction at a very low temperature, resulting in a high risk of breakage.

Therefore, in order to prepare for this, although the sheet is wrinkled at the construction stage, there is a problem that it is difficult to secure the quality of the construction in this case.

In addition, when a heat insulating system is constituted by laminating the heat insulating panel with different materials for the prevention of the heat insulation and the water leakage, there is a problem that the heat insulating system is deformed by the temperature gradient in the thickness direction and the use environment changing from the normal temperature to the cryogenic temperature .

And, if leakage occurs in the tank, the possibility of leakage through the coupling portion of the securing device should also be taken into consideration.

1. Korean Patent Publication No. 10-2011-0028881 2. Korean Patent Publication No. 10-2011-0109115 3. Korean Patent Publication No. 10-1034472

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and it is an object of the present invention to reduce the load and risk factors applied to the heat insulating material, to improve the function of preventing leakage, The present invention provides an improved insulation system for an independent tank type cargo hold and an independent tank type cargo hold including the same.

It is also an object of the present invention to provide a new securing device assembly capable of minimizing leakage through a securing device for securing an adiabatic system and an insulated system including the same.

The securing device assembly for the insulation system of the independent tank type cargo holds of the present invention comprises an inserting portion which is inserted into a wall for preventing the leakage of the liquid cargo stored in the independent tank coupled to the body of the independent type tank, And a first coupling cap including a hole formed in the body of the independent tank and having a hole through which the stud can be inserted.

And the diameter of the barrier part is larger than the through hole formed to insert the insertion part into the barrier wall.

The primary coupling cap is tightly coupled to the stud.

Particularly, it is more specific that the primary bonding cap is a material having a larger heat shrinkage amount than the stud.

The coupling nut may be screwed to the stud so as to closely contact the primary coupling cap to the barrier.

In addition, in order to thermally isolate the independent tank from the outside, an inserting portion is inserted into the through hole formed in the heat insulating block stacked on the barrier, in the form of a plywood laminated on the upper surface and the lower surface of the polyurethane foam, And a barrier portion having a diameter larger than that of the insertion portion so as to cover an upper surface of the flywood. The hole may include a hole for receiving the stud.

Here, the diameter of the barrier part is larger than the through hole formed in the plywood to penetrate the stud.

Next, the securing device assembly for the insulation system of the independent tank-type cargo hold of the present invention is characterized in that, in order to prevent leakage of the liquid cargo stored in the independent tank, A barrier portion having a diameter larger than that of the primary insertion portion, and a secondary insertion portion inserted into the through hole formed in the secondary barrier stacked on the primary barrier. The primary insertion portion is inserted into the through- And a primary securing device having a hole through which the stud formed in the body of the independent tank can pass.

And the primary securing device is a material having a larger heat shrinkage amount than the stud.

The secondary insertion portion is inserted into the through hole formed in the secondary barrier. The barrier portion has a diameter larger than that of the secondary insertion portion, and inserted into the through hole formed in the heat insulating block stacked on the secondary barrier. And a secondary securing device coupled to the primary securing device.

And the secondary insertion portion of the primary securing device is inserted into the secondary insertion portion of the secondary securing device.

The inserting block includes an insertion portion inserted into the through hole formed in the heat insulating block and a barrier portion extended from the insertion portion to cover the secondary barrier. .

Next, the adiabatic system of the independent tank-type cargo hold of the present invention is characterized in that it comprises a barrier to be connected to the body of the independent tank for preventing leakage of the liquid cargo stored in the independent tank installed in the ship, And a barrier portion having a diameter larger than that of the insertion portion so as to cover the upper surface of the barrier, wherein the barrier portion is formed to have a diameter larger than that of the insertion portion, And a securing device assembly including a primary engagement cap having a hole through which the formed stud can be passed.

The securing device assembly may further include a coupling nut screwed to the stud to thereby bring the primary coupling cap into close contact with the barrier.

The heat insulating block is formed by stacking plywoods on the upper and lower surfaces of the polyurethane foam. The securing device assembly includes an insertion portion to be inserted into the through hole formed in the polyurethane foam, And a barrier portion having a diameter larger than that of the inserting portion so that the stud can be covered with the hole.

Next, the adiabatic system of the independent tank-type cargo hold of the present invention is characterized in that it comprises a barrier which is double stacked on the outer edge of the independent tank for preventing leakage of the liquid cargo stored in the independent tank installed on the ship, A primary side inserting portion inserted into the through hole formed in the primary wall near the tank side of the wall, and a barrier having a diameter larger than that of the primary side inserting portion, And a primary securing device having a hole through which a stud formed in a body of the independent tank is formed, the securing device including a secondary insertion portion inserted into a through hole formed in a secondary barrier laminated on the primary barrier, Device assembly.

Wherein the securing device assembly includes a secondary insertion portion inserted into the through hole formed in the secondary barrier, a barrier portion having a diameter larger than that of the secondary insertion portion, and a through hole formed in the heat insulating block stacked on the secondary barrier And a secondary securing device including a tertiary insertion portion inserted into the hole and engaged with the primary securing device.

INDUSTRIAL APPLICABILITY The insulation system of the independent tank-type cargo hold according to the present invention separates the barrier for preventing leakage of the insulation system from the thermal insulating material for heat insulation, thereby effectively reducing the possibility of breakage of the finished sheet between the panel and the panel, .

In addition, by minimizing deformation due to heat shrinkage in the thickness direction, it is possible to effectively reduce the system load that may be caused by thermal deformation in the thickness direction.

Further, the present invention reduces the load and risk factors applied to the heat insulating material.

In addition, since the thickness for the barrier is not large, it can be constructed in a double structure and is configured to be as close as possible to the outer wall of the tank, thereby minimizing the risk of hull due to heat loss and temperature drop due to leakage.

Further, according to the securing device assembly for the insulating system of the independent tank type cargo hold proposed by the present invention and the adiabatic system including the securing device assembly, it is possible to minimize the leakage at the portion fixed by the securing device, thereby securing the hull.

FIG. 1 is a schematic view showing a conventional insulation system for an independent tank type cargo hold, and FIG. 2 is a structural view of another conventional isolation tank type cargo hold.
FIG. 3 is a schematic view of a heat insulating system of a stand-alone tank type hold according to an embodiment of the present invention, and FIG. 4 is an exploded perspective view of a heat insulating system of an independent tank type hold according to an embodiment of the present invention.
FIG. 5 illustrates a securing apparatus assembly for an insulation system of an independent tank type cargo hold according to an embodiment of the present invention.
6 is a view for explaining application of a retention device assembly for an insulation system of an independent tank type cargo hold according to an embodiment of the present invention.
7 is an exploded perspective view of an insulation system of an independent tank type cargo hold according to another embodiment of the present invention, and FIG. 8 is an exploded perspective view of an insulation system of an independent tank type cargo hold according to another embodiment of the present invention. 9 is a cross-sectional view of an insulation system of an independent tank type cargo hold according to another embodiment of the present invention.
FIG. 10 illustrates a securing apparatus assembly for an insulation system of an independent tank type cargo hold according to another embodiment of the present invention.
FIG. 11 is a view illustrating a securing apparatus assembly for an insulation system of an independent tank type cargo hold according to another embodiment of the present invention applied to the entire system.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in adding reference numerals to the constituents of the drawings, it is to be noted that the same constituents are denoted by the same reference symbols as possible even if they are displayed on different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an independent tank-type cargo hold constructed on a ship and an insulation system applied thereto.

The present invention relates to an insulation system capable of enhancing safety and insulation against leakage of a stand-alone tank by improving an insulation system applied by IMO standards, and a cargo hold including the insulation system.

This is a view to strengthening the existing secondary barrier.

The independent tank, to which the present invention is applied, has its own tank structure unlike the membrane type tank, and it is installed on the ship by the supporting equipment provided on the ship, and the tank itself can withstand the low temperature, And it is necessary to supplement the leakage prevention measures and the thermal insulation function in order to prepare for the situation of the operating environment and the situation of the ship. However, the present invention is not limited to such a complementary system .

Hereinafter, an independent tank-type cargo hold and its insulation system according to the present invention will be described in detail with reference to the drawings.

FIG. 3 is a schematic view of a heat insulating system of a stand-alone tank type hold according to an embodiment of the present invention, and FIG. 4 is an exploded perspective view of a heat insulating system of an independent tank type hold according to an embodiment of the present invention.

3 and 4, an independent tank type hold according to an embodiment of the present invention includes an insulation system for preventing leakage of liquid cargo from a stand-alone tank to a stand-alone tank and for thermally protecting a stand-alone tank .

The stand-alone tanks in one embodiment of the present invention are constructed of a high-Mn steel material to withstand cryogenic temperatures and for sufficient rigidity.

The high manganese steel contains 0.2 to 0.6% of carbon (C), 22.0 to 26.0% of manganese (Mn), 0.1 to 1.0% of silicon (Si), 0.03% of phosphorus (P) 0.01% at the maximum.

In one embodiment of the present invention, the adiabatic system is formed of a double structure of a barrier 110 and an adiabatic block.

By having the structure in which the barrier 110 and the heat insulating block are stacked on the tank in a double manner, the heat insulating performance is maintained by the heat insulating block by independently separating the structure for performing the heat insulating function and the water leakage blocking function, It is a structure to prevent water leakage.

The barrier 110 and the heat insulating block are configured such that a plurality of unit cells are layered in a direction parallel to each other to surround the tank.

The naming of the barrier and adiabatic block referred to below may refer to each cell or may simply represent the entire layer.

The barrier 110 is fixed to the outer wall of the body of the tank T so that the leakage of water is primarily prevented when leakage occurs in the tank T. [

The studs S are fixedly attached to the body of the tank T in order to fix the barriers 110. The studs S pass through the through holes formed in the barriers 110 and the penetrating studs S Is coupled to the securing device assembly 111 to allow the barrier 110 to be secured to the tank T. [

The specific configuration of the securing device assembly 111 and the connection with the stud S will be described later.

The leveling member L is provided so that the barrier 110 can maintain a constant gap with the tank T. [

Such a barrier is made of a material having a small heat shrinkage such as plywood, thereby reducing the risk of breakage of the primary finishing sheet, which will be described later, and contributing to minimizing the thickness direction deformation of the heat insulating block to be described later.

The material of the barrier can be replaced by other materials that can perform these functions. The replaceable material may be a fiber-reinforced plastic material, specifically, a fiber-reinforced propylene material having a fiber-reinforced epoxy or a separate primer treated.

It is preferable that the barrier wall has a thickness of 9 mm or more and 1/10 or less of the thickness of the heat insulating block.

If the thickness of the barrier is smaller than 9 mm, sufficient leakage prevention can not be guaranteed, or there is a danger of bending deformation or breakage. If the thickness of the barrier is excessively thick, the function may be substantial but the material takes a lot of space, Therefore, if the thickness is 1/10 or less of the thickness of the heat insulating block, the function can be sufficiently achieved.

As described above, a plurality of unit barriers are formed as layers in the barrier, and a gap is generated between the unit barriers.

In order to prevent leakage through such gap, it is more preferable that a primary finishing sheet 112 of liquid tight material is attached between the unit walls.

Next, the heat insulating blocks stacked on the barrier 110 are laminated on upper and lower surfaces of the polyurethane foam 122 to form one block.

The heat insulating block is not constituted merely by a heat insulating material, and by adding the plywood layer in this way, it is more suitable for prevention of water leakage and prevention of deformation.

A through hole is formed through the plywood 121 and 123 and the polyurethane foam 122 on the heat insulating block and the stud S partially inserted into the through hole is coupled by the securing device assembly 111, The upper portion of the device assembly 111 is filled with the through-hole block 124 to be closed.

Further, a plurality of unit heat insulating blocks are formed as a layer in the heat insulating block, and a gap is generated between the unit heat insulating blocks.

In order to minimize the heat loss through such an interval, it is preferable that the space between the unit heat insulating blocks is filled with a bridge heat insulating member 130 for filling the space, and the bridge heat insulating member 130 and the heat insulating member A secondary finishing sheet 125 is attached between the blocks to ultimately protect the leakage that may occur in the event of an emergency.

The secondary finishing sheet 125 is a sheet adhered in a tape form.

The bridge member 130 is disposed above the bridge heat insulating member 130 at the point where the unit heat insulating blocks meet and facilitates insertion and fixation of the bridge heat insulating member 130, do.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a securing device assembly according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 5 illustrates a securing device assembly for a thermal insulation system of an independent tank type cargo hold according to an embodiment of the present invention, and FIG. 6 illustrates a securing device assembly for an insulation system of an independent tank type cargo hold according to an embodiment of the present invention. Fig.

5 and 6, the securing device assembly 111 according to an embodiment of the present invention is composed of a primary coupling cap 10, a coupling nut 20, and a secondary coupling cap 30.

The primary coupling cap 10 includes an insertion portion 11 inserted into the through hole h1 formed in the barrier 110 and a barrier having a diameter larger than that of the insertion portion 11 to cover the barrier 110 surface. And a hole through which the stud S can penetrate is formed in the insertion portion 11 and the barrier portion 12.

The holes formed in the primary coupling cap 10 are formed in a size slightly smaller than the diameter of the studs S so that the studs S can be inserted and inserted, 110 in the through hole h1 of the barrier 110 in correspondence with the thickness of the barrier 110. [

The primary coupling cap 10 conforms to the interference fit standard and allows the liquid tightness naturally when the heat shrinkage is caused by the difference in heat shrinkage coefficient.

That is, when the temperature change is about 190 degrees, the shrinkage of the aluminum material with respect to the hole of 10 mm shrinks to a hole diameter of about 0.045 mm, so that no leakage occurs due to heat shrinkage.

The barrier 110 is further formed with holes corresponding to the thickness of the barrier portion 12 and the barrier portion 12 is coupled to the upper surface of the further formed hole so that the barrier portion 12 is configured as described above It is possible to protect the occurrence of water leakage in the longitudinal direction of the stud S.

The coupling nut 20 is screwed into the stud S penetrating the upper portion of the primary coupling cap 10 so that the primary coupling cap 10 can be brought into close contact with the barrier 110.

To this end, the first plywood 121 of the heat insulating block is formed with a through hole h2 through which the coupling nut 20 can be inserted.

The first plywood 121 is formed with the minimum required diameter through which the engaging nut 20 can be inserted and the second through hole h2 with the minimum diameter required for the stud S to pass therethrough.

The secondary joint cap 30 is inserted into the through hole h3 formed in the through block 231, thereby fixing the heat insulating block.

The secondary coupling cap 30 is composed of a barrier portion 31 and an insertion portion 32. By forming a hole therein, the stud S is inserted into the hole formed in the secondary coupling cap 30, Are formed so as not to pass through the studs S and are finally combined with the stud S. [

The barrier portion 31 is formed to have a diameter larger than that of the insertion portion 32 so as to cover the first plywood 121 so as to firmly fix the first plywood 121 to the longitudinal direction of the stud S Thereby blocking the risk of leaking to.

The insulation system of the independent tank type cargo hold and the independent tank type cargo hold including the same according to an embodiment of the present invention are configured as described above so that the barrier and the insulation block independently perform the function of preventing water leakage and adiabatic effect, In addition, the performance of preventing water leakage can be greatly improved, and the deformation due to the temperature change due to cryogenic liquid contents is minimized, so that the safety of a cargo hold and a ship can be greatly improved.

In addition, the fixing device assembly for an insulation system according to an embodiment of the present invention can block the leakage of water through a component for fixing the insulation system, and enables stable fixing with a simple configuration.

7 is an exploded perspective view of an insulation system of an independent tank type cargo hold according to another embodiment of the present invention, and FIG. 7 is a perspective view of an insulation system of an independent tank type cargo hold according to another embodiment of the present invention. And FIG. 9 is a cross-sectional view of an insulation system of an independent tank-type cargo hold according to another embodiment of the present invention.

Hereinafter, an insulation system of an independent tank-type cargo hold according to another embodiment of the present invention will be described with reference to FIGS.

In describing another embodiment of the present invention, the description of the same configuration as that of the above embodiment will be omitted or omitted.

The insulation system of the independent tank type cargo hold according to another embodiment of the present invention differs from the above embodiment in that a barrier wall is formed in a double shape and a heat insulating block is stacked thereon to have a triple structure, Can be strengthened.

For convenience, the barrier near the tank T side is referred to as a primary barrier, and the far barrier wall is referred to as a secondary barrier.

The primary barrier 210 is fixed to the outer wall of the tank T so that leakage of water to the tank T can be prevented in the first place.

In order to fix the primary barrier 210, the stud S is fixedly attached to the tank T, and the stud S passes through the through hole h4 formed in the primary barrier 210 The perforated stud S is coupled to the primary securing device 40-1 so that the primary barrier 210 can be fixed to the tank T. [

A primary finishing sheet 212 is attached between unit walls forming the primary barrier 210 and a secondary barrier 220 is also deposited on the primary barrier 210.

The secondary barrier 220 is also formed with a through hole h5 so as to be stacked on the primary barrier 210 and fixed by the secondary securing device 40-2, The deadline is set by

However, the units of the primary barrier 210 and the secondary barrier 220 are stacked so that the corners do not coincide with each other, thereby preventing leakage more securely.

The primary finishing sheet 212 and the secondary finishing sheet 222 are preferably made of a product made of a metal material such as aluminum (Al) so as to be liquid tight.

The material and thickness of the barriers are as described in the previous embodiment.

However, the thickness of the insulation system in this embodiment is more important because it has a dual structure.

If the thickness is more than that, the thickness of the entire adiabatic system becomes larger than the improvement of the function.

Next, the heat insulating block 230 is stacked on the secondary barrier 220. The heat insulating block 230 in this embodiment can be composed of a single polyurethane foam. This is due to the dual structure of the barrier.

A through hole is formed in the heat insulating block 230, and the stud S inserted therein is fixed by the coupling cap 30 to fix the heat insulating block 230.

The bridge insulating member 240 and the coupling member 241 are the same as those described above.

A third finishing sheet 232 may be adhered and closed between the unit heat insulating blocks on the rear side of the heat insulating block 230.

The third finishing sheet 232 in this embodiment is not necessarily made of a metal material or the like, unlike the previous embodiment.

This is because the double finish sheets 212 and 222 which are stacked so as to be offset from each other by the double barrier walls can sufficiently exhibit their functions.

Hereinafter, a securing device assembly according to another embodiment of the present invention will be described with reference to the drawings.

FIG. 10 illustrates a securing apparatus assembly for an insulation system of an independent tank type cargo hold according to another exemplary embodiment of the present invention, and FIG. 11 illustrates a securing apparatus assembly for an insulation system of an independent tank type cargo hold according to another exemplary embodiment of the present invention. Is applied to the entire system.

10 and 11, the securing device assembly according to another embodiment of the present invention includes the first securing device 40-1, the second securing device 40-2, and the coupling cap 30, .

The primary securing device 40-1 includes a primary insertion portion 41-1 inserted into the through hole h4 formed in the primary barrier 210 and a secondary inserted portion 41-1 extending from the primary inserted portion 41-1, And a secondary insertion portion 43-1 inserted into the through hole h5 formed in the secondary barrier 220. The primary insertion portion 41-1, A hole through which the stud S can pass is formed in the barrier portion 42-1.

The holes formed in the primary securing device 40-1 allow the secondary insertion portion 43-1 to be bolted and inserted therein and the primary securing device 210 is provided with the holes of the primary securing device 40-1 The through hole h4 is provided in such a manner that the primary insertion portion 41-1 and the barrier portion 42-1 can be inserted.

As described above, since the barrier portion 42-1 is provided with a larger diameter than the primary insertion hole 41-1, leakage through the through hole h4 can be minimized.

The secondary side inserting portion 43-1 is inserted into the through hole h5 formed in the secondary barrier 220 and inserted into the secondary securing device 40-2 to be described later.

The secondary securing device 40-2 has a secondary insertion portion 41-2 inserted into the through hole h5 formed in the secondary barrier 210 and a secondary inserted portion 41-2 extending from the secondary insertion portion 42-1 And a secondary side inserting portion 43-2 inserted into the through hole formed in the heat insulating block 230. The secondary side inserting portion 41-2 and the barrier portion 42 -2), a hole through which the stud S can penetrate is formed.

The configuration of the secondary side inserting portion 41-2, the barrier portion 42-2 and the tertiary inserting portion 43-2 is the same as the configuration of the first primary securing device 40-1, The holes formed in the car side inserting portion 41-2 are provided in such a size that the secondary side inserting portion 43-1 of the first securing device can be inserted.

The holes formed in the secondary securing device 40-2 are formed to have a size slightly smaller than the diameter of the stud S so that the upper hole and the secondary insertion portion 41-2 ) Is formed as a lower hole larger than this.

The through hole h5 is formed in the secondary barrier 210 in such a manner that the secondary insertion portion 41-2 and the barrier portion 42-2 of the secondary securing device 40-2 can be inserted. .

Thus, the barrier portion 42-2 is provided with a larger diameter than the secondary insertion hole 41-2, thereby minimizing leakage through the through hole h5.

The secondary side inserting portion 43-2 is inserted into the through hole formed in the heat insulating block 230 and the stud S passing through the tertiary side inserting portion 43-2 is inserted into the through hole of the heat insulating block 230 And ultimately to the coupling cap 50 to be inserted.

The coupling cap 30-1 in this embodiment has the same structure as that of the secondary coupling cap 30 in the previous embodiment, and a corresponding through hole is formed in the heat insulating block 230. [

The insulation system of the independent tank type cargo hold according to another embodiment of the present invention and the independent tank type cargo hold including the same are constructed as described above, Can be further improved.

In addition, since the secondary barrier structure is also configured on the tank side as much as possible, the risk of hull due to heat loss and deformation can be further minimized in the event of leakage.

And, the adiabatic system can be stably fixed to the tank by a simple configuration, and leakage can be minimized through the joint structure, so that the hull can be protected.

Although the present invention has been described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

110: barrier
111: securing device assembly
10: primary coupling cap
20: Coupling nut
30: Secondary coupling cap
112: primary finishing sheet
121: 1st ply wood
122: polyurethane foam
123: 2nd plywood
124: penetrating block
125: Secondary finishing sheet
130: bridge member
131: joint member
210: Primary barrier
220: Secondary barrier
230: Insulation block
30-1: Coupling cap
40-1: Primary securing device
40-2: Second Securing Device

Claims

An insertion portion inserted into a barrier wall for preventing leakage of the liquid cargo stored in the independent tank coupled to the body of the independent tank and a barrier portion extending from the insertion portion to cover the upper surface of the barrier, And a primary engagement cap having a hole through which a stud formed in the body of the stand-
Securing device assembly for insulation systems in independent tank - type holds.

The method according to claim 1,
Wherein a diameter of the barrier portion is larger than a through-hole formed to insert the insertion portion into the barrier wall.
Securing device assembly for insulation systems in independent tank - type holds.

The method of claim 2,
Characterized in that the primary coupling cap is tightly coupled to the stud.
Securing device assembly for insulation systems in independent tank - type holds.

The method of claim 3,
Wherein the primary coupling cap is a material having a larger heat shrinkage amount than the stud.
Securing device assembly for insulation systems in independent tank - type holds.

The method of claim 2,
Further comprising a coupling nut threadably engaged with the stud to thereby bring the primary coupling cap into close contact with the barrier.
Securing device assembly for insulation systems in independent tank - type holds.

The method of claim 5,
An inserting portion inserted into a through hole formed in a heat insulating block stacked on the barrier to form a laminated plywood on an upper surface and a lower surface of the polyurethane foam so as to thermally isolate the independent tank from the outside, Further comprising a barrier portion having a diameter larger than that of the insertion portion so as to cover an upper surface of the insertion portion,
Securing device assembly for insulation systems in independent tank - type holds.

The method of claim 6,
Wherein the diameter of the barrier portion is larger than the through-hole formed in the ply through the stud.
Securing device assembly for insulation systems in independent tank - type holds.

A primary side inserting portion inserted into a through hole formed in a primary wall near a tank side of a barrier wall which is double stacked on the outer edge of the independent type tank to prevent leakage of the liquid cargo stored in the independent type tank; And a secondary side inserting portion inserted into the through hole formed in the secondary wall which is stacked on the primary wall, wherein the hole formed in the body of the independent tank is formed with a hole Comprising a car securing device,
Securing device assembly for insulation systems in independent tank - type holds.

The method of claim 8,
Wherein the primary securing device is a material having a larger amount of heat shrinkage than the stud.
Securing device assembly for insulation systems in independent tank - type holds.

The method of claim 8,
A secondary side inserting portion inserted into the through hole formed in the secondary wall, a barrier portion having a diameter larger than that of the secondary side inserting portion, and a third portion inserted into the through hole formed in the heat insulating block stacked on the secondary wall Further comprising a secondary securing device including a primary side securing device and a secondary side securing device,
Securing device assembly for insulation systems in independent tank - type holds.

The method of claim 10,
Wherein the secondary insertion portion of the primary securing device is inserted into the secondary insertion portion of the secondary securing device.
Securing device assembly for insulation systems in independent tank - type holds.

The method of claim 10,
An inserting portion inserted into the through hole formed in the heat insulating block and a barrier portion provided with a diameter larger than that of the inserting portion so as to cover the secondary wall and having a hole in which the stud is inserted doing,
Securing device assembly for insulation systems in independent tank - type holds.

A barrier coupled to the body of the stand-alone tank to prevent leakage of liquid cargo stored in a stand-alone tank installed in the vessel;
A heat insulating block stacked on the barrier to thermally isolate the independent tank from the outside; And
And a barrier portion extending from the insertion portion to cover the upper surface of the barrier, wherein the barrier portion has a hole through which the stud formed in the body of the independent tank can be inserted, And a securing device assembly including a coupling cap.
Insulation system of independent tank type hold.

14. The method of claim 13,
Wherein the securing device assembly further comprises a coupling nut threadedly engaged with the stud to thereby bring the primary coupling cap into close contact with the barrier.
Insulation system of independent tank type hold.

15. The method of claim 14,
Wherein the heat insulating block is formed by stacking plywood on the upper surface and the lower surface of the polyurethane foam,
Wherein the securing device assembly includes an insertion portion to be inserted into the through hole formed in the polyurethane foam and a barrier portion having a diameter larger than that of the insertion portion so as to cover the upper surface of the plywood, And a second coupling cap formed with the second coupling cap.
Insulation system of independent tank type hold.

A barrier which is double stacked on the outer edge of the independent tank to prevent leakage of the liquid cargo stored in the independent tank installed on the ship;
A heat insulating block stacked on the barrier to thermally isolate the independent tank from the outside; And
A primary side inserting portion inserted into a through hole formed in a primary wall near the tank side of the barrier wall, a barrier portion having a diameter larger than that of the primary side inserting portion, and a secondary barrier formed on the primary wall And a securing device assembly including a primary securing device including a secondary side inserting portion inserted into the through hole, the securing device including a hole through which a stud formed in a body of the independent type tank can pass,
Insulation system of independent tank type hold.

18. The method of claim 16,
Wherein the securing device assembly includes a secondary insertion portion inserted into the through hole formed in the secondary barrier, a barrier portion having a diameter larger than that of the secondary insertion portion, and a through hole formed in the heat insulating block stacked on the secondary barrier Further comprising a secondary securing device coupled to the primary securing device, the secondary securing device including a tertiary insertion portion inserted into the hole,
Insulation system of independent tank type hold.

18. The method of claim 16,
An inserting portion inserted into the through hole formed in the heat insulating block and a barrier portion provided with a diameter larger than that of the inserting portion so as to cover the secondary wall and having a hole in which the stud is inserted Lt; RTI ID = 0.0 >
Insulation system of independent tank type hold.