阅读说明：本技术 膜状物精整板及包括其的膜状物的隔热结构 (Membrane finishing plate and membrane heat insulation structure comprising same ) 是由 方康济 姜重圭 吴燻铎 金秉和 于 2018-12-27 设计创作，主要内容包括：公开了一种膜状物精整板及包括其的膜状物的隔热结构。根据本发明的构成设置在膜状物型存储槽中的密封壁的多个膜状物板之中布置在膜状物的精整部上的膜状物精整板包括在朝向所述膜状物的精整部的方向上设置为闭合结构的褶皱部。此外,提供了膜状物的隔热结构,根据本发明的包括膜状物精整板的膜状物的隔热结构包括构成设置在膜状物型存储槽中的密封壁的多个膜状物板之中布置在膜状物的精整部上的膜状物精整板,其中,所述膜状物精整板的四个边之中与所述膜状物的精整部接触的最后一边中褶皱部设置为闭合结构,因此不需要用于密封膜状物的额外的精整部件。(Further, there is provided an insulation structure of a membrane according to the present invention, which includes a membrane finishing plate disposed on a finishing portion of a membrane among a plurality of membrane plates constituting a sealing wall provided in a membrane type storage tank, wherein a last wrinkled portion of four sides of the membrane finishing plate contacting the finishing portion of the membrane is provided as a closed structure, and thus an additional finishing member for sealing the membrane is not required.)

A membrane finishing plate of kinds, wherein the membrane finishing plate relates to a membrane finishing plate disposed on a finishing portion of a membrane among a plurality of membrane plates constituting a sealing wall provided in a membrane type storage tank, wherein,

the folded portion in a direction toward the finishing portion of the membrane, among the plurality of folded portions formed on the membrane finishing plate, is provided in a closed structure.

A thermal insulation structure for a membrane comprising a membrane finishing sheet of the species , comprising:

a film finishing plate (100) disposed on a finishing portion of the film among a plurality of film plates constituting a sealing wall provided in the film type storage tank; and

a membrane sheet (10) disposed at a remaining region except for a finishing portion of the membrane on which the membrane finishing sheet (100) is disposed,

wherein the membrane finishing plate (100) and the membrane plate (10) comprise a plurality of wrinkles,

the membrane finishing plate (100) is provided in a square plate shape in which folds in the last side(s) of four sides of the membrane finishing plate (100) in contact with the finishing portion of the membrane are provided in a closed configuration, and folds in the remaining three sides are provided in an open configuration.

3. A membrane insulation structure including a membrane finishing plate according to claim 2, wherein the last side(s) among four sides of the membrane finishing plate (100) is provided flat, and no of the plurality of wrinkles formed on the membrane finishing plate (100) extend to the last side(s).

4. A membrane insulation structure comprising a membrane finishing sheet according to claim 2, wherein the membrane sheet (10) is provided in a square plate shape, and

all folds in the four sides of the membrane plate (10) are arranged in an open structure.

5, an insulation structure of a film comprising a film finishing plate, wherein a side of the film finishing plate disposed on the finishing portion of the film, among a plurality of film plates constituting a sealing wall provided in a film type storage tank, which is in contact with the finishing portion of the film, is physically formed of a plate and an end cap , and thus an additional finishing member is not required.

Technical Field

The present invention relates to a film finishing sheet and a heat insulation structure of a film including the same, and more particularly, to a film finishing sheet and a heat insulation structure of a film including the same, which are disposed on a finishing portion of a film and a wrinkle portion structure of which is improved.

Background

Natural gas (natural gas) has recently been attracting attention as a low-pollution energy source in various technical fields as a fossil fuel containing methane (methane) as a main component and a small amount of ethane (ethane), propane (propane), and the like.

Natural gas is transported in a gaseous state through a gas pipeline on land or at sea, or transported to a remote consumption site in the case of being stored in a Liquefied Natural Gas (LNG) transport ship in a liquefied LNG state. Liquefied natural gas is obtained by cooling natural gas to a very low temperature (approximately around-163 ℃), and is very suitable for long-distance transportation by sea, with a volume reduced to about 1/600 compared to when natural gas is in a gaseous state.

The lng carrier is provided with a storage tank (cargo, also called a cargo tank) capable of storing and storing lng which is cooled and liquefied. The boiling point of lng is about-162 deg.c at atmospheric pressure, and thus in order to safely store and store lng, the storage tank for lng may be made of an ultra-low temperature resistant material such as aluminum steel, stainless steel, 35% nickel steel, etc., and is designed in a structure that is strong against thermal stress and thermal shrinkage and can prevent heat intrusion.

Such a liquefied gas storage tank may be classified into an independent type (independent type) and a membrane type (membrane type) according to its structure.

The conventional film type storage tank has a structure in which an th sealing wall, a th heat insulating wall, a second sealing wall and a second heat insulating wall are laminated the th sealing wall is constituted by a stainless steel film of 1.2mm thickness as a part directly contacting the liquefied natural gas stored in the storage tank.

Although stainless steel is suitable as the seal wall because it has excellent sealing ability, a plurality of wrinkles are formed in the seal wall in consideration of thermal deformation due to large thermal deformation.

Fig. 1 is a view showing a structure in which a sealing wall is disposed on a conventional film type storage tank, (a) shows a film plate, and (b) shows an end cap, and fig. 2 is a view schematically showing the structure of the conventional film type storage tank.

Referring to fig. 1 to 2, a sealing wall is composed of a film plate (10) formed with a plurality of wrinkles in a conventional film type storage tank.

In practice, the sealing wall is formed by connecting thousands of membrane sheets (10) of the same shape, in which a plurality of wrinkles are formed, and the wrinkles formed between the membrane sheets (10) adjacently joined at that time are welded so as to be continuous with each other.

However, since the adjacent membrane plate (10) does not exist in the finishing portion of the storage tank, the wrinkle part formed on the membrane plate (10) of the finishing portion must be sealed by an additional finishing member, and generally, as shown in fig. 1, a manner of finishing by welding the end cap (20) is used.

The conventional method as described above requires preparation of an additional finishing member such as an end cap and requires an additional welding work, and thus has problems in that the working time becomes long and productivity is low.

Disclosure of Invention

Technical problem

The technical problem to be solved by the present invention is to provide a thermal insulation structure of a membrane in which a wrinkle part formed on a membrane finishing plate disposed on a finishing part of the membrane among a plurality of membrane plates constituting a sealing wall is formed in a closed structure in a direction toward the finishing part, and thus an additional finishing member for sealing the membrane is not required.

Means for solving the problems

In order to achieve the above object, the present invention provides a film finishing plate relating to a film finishing plate disposed on a finishing portion of a film among a plurality of film plates constituting a sealing wall provided in a film type storage tank, wherein a wrinkle portion in a direction toward the finishing portion of the film among a plurality of wrinkle portions formed on the film finishing plate is provided in a closed structure.

Further, in order to achieve the above object, the present invention provides an insulation structure of a film including a film finishing plate, the insulation structure including a film finishing plate (100) disposed on a finishing portion of the film among a plurality of film plates constituting a sealing wall provided in a film type storage tank, and a film plate (10) disposed at a remaining region except the finishing portion of the film on which the film finishing plate (100) is disposed, the film finishing plate (100) and the film plate (10) including a plurality of wrinkles, and the film finishing plate (100) being provided in a square plate shape, wherein wrinkles among the last sides(s) contacting the finishing portion of the film among four sides of the film finishing plate (100) are provided in a closed structure, and wrinkles among the remaining three sides are provided in an open structure.

The last side(s) among the four sides of the membrane finishing plate (100) is disposed to be flat, and no of the plurality of wrinkles formed on the membrane finishing plate (100) extend to the last side(s).

The membrane sheet (10) may be provided in a square plate shape, and all folds in four sides of the membrane sheet (10) may be provided in an open structure.

In the heat insulating structure of a film including a film finishing plate according to the present invention, the side of the film finishing plate disposed on the finishing portion of the film, among a plurality of film plates constituting the sealing wall provided in the film type storage tank, which is in contact with the finishing portion of the film, is physically formed by the plate and the end cap , and thus an additional finishing member is not required.

Effects of the invention

According to the present invention, an additional finishing member for sealing the finishing of the membrane is not required, and a work for welding an additional finishing member such as an end cap is not required, thus having the effects of reducing the cost of parts and shortening the work time.

Further, the present invention can reduce the curved surface welding work for welding a finishing member such as an end cap, so the work convenience for welding can be increased and the setting work of the membrane can be simplified.

Drawings

Fig. 1 is a view showing a structure in which a sealing wall is disposed on a conventional film type storing bath, (a) shows a film plate, and (b) shows an end cap.

FIG. 2 is a view schematically showing the structure of a conventional film type storage tank.

Fig. 3 is a view showing a membrane finishing plate according to the present invention.

Fig. 4 is a view schematically showing the structure of a film type storage tank to which a film finishing plate according to the present invention is applied.

Fig. 5 (a) and 5 (b) are views schematically showing a corner portion of a conventional film-type storage tank and a corner portion of a film-type storage tank according to the present invention, respectively.

Detailed Description

For a fuller understanding of the invention, its operating advantages and the objects attained by its practice, reference should be made to the drawings which illustrate a preferred embodiment of the invention and to the accompanying descriptive matter.

The present invention will be described in detail hereinafter by describing preferred embodiments thereof with reference to the accompanying drawings. Like reference symbols in the various drawings indicate like elements.

In addition, in describing the present invention, a detailed description thereof will be omitted when it is judged that a detailed description of related well-known configurations or functions will obscure the gist of the present invention.

Fig. 3 is a view showing a film finishing plate according to the present invention, and fig. 4 is a view schematically showing a structure of a film type storage tank to which the film finishing plate according to the present invention is applied.

Referring to fig. 3, the membrane finishing plate (100) according to the present invention includes a plurality of wrinkles, wherein an edge (hereinafter, referred to as 'last edge') contacting the finishing of the membrane among four edges of the membrane finishing plate (100) is provided such that the wrinkles have a closed structure.

That is, in the film finishing plate (100), the last side(s) is set flat (flat), and no of the plurality of wrinkles formed on the film finishing plate (100) extends to the last side.

In other words, in membrane finished plates (100), the last edges(s) are not finished by additional end caps, but may be formed integrally from the plate and end caps .

In the membrane finishing plate (100), the remaining three sides except the direction toward the finishing portion of the membrane are provided so that the wrinkle portion has an open structure. As shown in fig. 4, the open-structured corrugations are connected to the corrugations formed on the adjacent plates to be continuous therewith. In this case, the connection of the adjacent wrinkle portions may be formed by welding.

Next, a thermal insulation structure of a membrane including a membrane finishing plate according to the present invention will be described with reference to fig. 4.

The membrane insulating structure according to the present invention comprises a sealing wall formed on each inner wall of the storage tank to liquid-seal the liquefied gas stored in the storage tank, and is formed by connecting a plurality of membrane sheets (10) formed with wrinkles, wherein a membrane finishing sheet (100) according to the present invention is disposed on the outermost circumference of the sealing wall.

That is, a membrane finishing plate (100) is disposed on a portion contacting the finishing portion of the membrane, and an existing membrane plate (10) is disposed on the remaining area except for it.

At this time, the membrane finishing plate (100) includes a plurality of wrinkles as described above, wherein the wrinkles have a closed structure in the last side(s) contacting the finishing portion of the membrane among the four sides of the membrane finishing plate (100), and the wrinkles have an open structure in the remaining three sides except the last side(s).

The open-structured folds formed on the membrane sheet (10) and membrane finishing sheet (100) may be joined by welding to the open-structured folds formed on the adjacent sheets.

According to the membrane insulation structure as described above, since it is not necessary to weld an additional finishing member such as an end cap on the membrane sheet in contact with the finishing portion of the membrane as in the conventional art, there is an effect of increasing convenience of the welding work, and thus shortening the working time and improving productivity.

Further, the present invention can also be applied to a corner portion formed with an inclined surface at the film type storing bath.

Fig. 5 (a) and 5 (b) are views schematically showing a corner portion of a conventional film-type storage tank and a corner portion of a film-type storage tank according to the present invention, respectively.

Referring to fig. 5 (a), conventionally, in order to also perform a wrinkle portion provided as an open form of the film plate (10) at a corner portion of the film type storage tank, an additional work of welding and finishing an end cap (20) is required.

However, referring to fig. 5 (b), as the film finishing plate (100) according to the present invention is also applied at the corner portion of the storing bath, finishing work other than conventional is not required, and thus convenience of welding work can be improved.

The present invention as described above is not limited to the described embodiments, and it will be apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the invention. Therefore, such modifications or variations are intended to fall within the scope of the claims of the present invention.