Liquefier heat insulation system and liquefier applying same

Abstract

The invention discloses a liquefier heat insulation system and a liquefier applying the same. The liquefier heat insulation system according to an embodiment of the present invention comprises: a storage container having an open opening formed at the upper end thereof; a plurality of baffles which are arranged in the interior of the opening side of the storage container at predetermined intervals; the vacuum part is arranged at the upper parts of the plurality of baffles; the vacuum portion is disposed such that a lower portion thereof is spaced apart from a baffle disposed at the uppermost end of the plurality of baffles by a predetermined interval.

Description

[0001] This application claims priority from Korean Patent Application No. 10-2022-0136698, filed on October 21, 2022, and the entire text of the Korean patent application is cited in this application. Technical Field

[0002] The present invention relates to a liquefier insulation system and a liquefier using the same, and more particularly, to a technical concept of providing a vacuum space on a baffle previously provided at an opening of a storage container in order to improve the insulation efficiency of a storage container storing liquefied liquefied gas in a liquefier that liquefies a given gas. Background Art

[0003] Compared with directly storing them in a gaseous state, liquefying and storing various gases such as hydrogen, nitrogen, helium, etc. shows extremely high efficiency, and therefore liquefiers for liquefying these gases are widely known.

[0004] In order to liquefy and store the gas as described above, it is necessary to maintain extremely low temperatures.

[0005] Furthermore, since liquefied gas can be easily vaporized again even if a little external heat is transferred, thermal insulation is of great significance not only in liquefiers used for gas liquefaction but also in storage tanks for storing extremely low-temperature fluids such as liquefied gas.

[0006] Conventional thermal insulation systems used in conventional liquefiers are limited to simply arranging a plurality of baffles inside the opening side of a storage container storing liquefied gas.

[0007] The plurality of baffles are arranged parallel or nearly parallel to the bottom of the storage container, and the baffles are arranged in a stacked manner with predetermined intervals. The plurality of baffles absorb heat during the regasification process of the liquefied gas stored in the storage container, slowing down the gasification of the liquefied gas. The baffles cooled by the low temperature of the liquefied gas can cut off the external heat flowing in from the opening of the storage container, thereby performing the functions of heat insulation and reliquefaction for the liquefier.

[0008] However, in the case where a plurality of baffles are simply provided in the past, there is a problem that external heat flowing in from the opening side of the storage container is easily transferred to the plurality of baffles, which reduces the insulation performance and the efficiency.

[0009] Therefore, a technical concept is needed that can more robustly prevent external heat from flowing into the interior of the storage container of the liquefier.

[0010] * Prior art literature

[0011] -Patent Literature

[0012] Patent Document 1. Korean authorized patent (Registration No. 10-2384711, "Liquefied gas storage tank with insulation portion"). Summary of the invention

[0013] Technical issues

[0014] The problem to be solved by the present invention is to provide a technical idea, namely, in order to prevent external heat from being transmitted through the opening of the storage container storing liquefied liquefied gas in the liquefier, an independent vacuum space can be provided in addition to the multiple baffles originally provided, thereby improving the insulation efficiency.

[0015] Technical Solution

[0016] A liquefier insulation system according to an embodiment of the present invention, which is intended to solve the technical problem, may include: a storage container having an open opening formed at an upper end; a plurality of baffles, which are respectively arranged at predetermined intervals inside the opening side of the storage container; and a vacuum portion, which is arranged on the upper part of the plurality of baffles; wherein the vacuum portion may be configured such that the lower part is separated from a baffle arranged at the uppermost end of the plurality of baffles by a predetermined interval.

[0017] In addition, the storage container may include: a lower end flange formed to protrude a predetermined length toward the outside of the storage container to surround the opening; and an upper end flange configured to be combined with the lower end flange to close the opening.

[0018] In addition, the liquefier insulation system may further include: an insulation member disposed between the lower end flange and the upper end flange.

[0019] In addition, it may be characterized in that the insulating member includes an edge portion, which is formed so that a predetermined range from the edge is thicker than the remaining range by a predetermined thickness; so that the upper portion of the vacuum portion can be separated from the lower surface of the insulating member by a predetermined distance.

[0020] In addition, it may be characterized in that the storage container includes: a storage portion that stores liquefied liquefied gas; and a neck that is formed at a predetermined height in a manner having a smaller diameter than the storage portion; and the multiple baffles and the vacuum portion are configured to be located only inside the neck.

[0021] A liquefier according to an embodiment of the present invention that is intended to solve the technical problem may include: a storage container having an open opening formed at an upper end; and a liquefier insulation system that is equipped on the storage container; wherein the liquefier insulation system may include: a plurality of baffles that are respectively arranged at predetermined intervals inside the opening side of the storage container; and a vacuum portion that is arranged on the upper parts of the plurality of baffles; wherein the vacuum portion may be configured so that its lower part is separated by a predetermined interval from a baffle that is arranged at the uppermost end of the plurality of baffles.

[0022] Effects of the Invention

[0023] According to the embodiment of the present invention, there is an effect that, in a liquefier for liquefying a predetermined gas, the thermal insulation efficiency of a storage container storing the liquefied liquefied gas can be improved with a relatively simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more fully understand the drawings cited in this summary, a brief description of each drawing is provided.

[0025] Figure 1 The general configuration of a liquefier is shown.

[0026] Figures 2 to 4 The structure of a liquefier insulation system according to an embodiment of the present invention is shown.

[0027] Figure 5 FIG. 4 is a diagram for describing a fastening method of a liquefier insulation system according to an embodiment of the present invention.

[0028] Figure 6 FIG. 4 is a diagram for describing a fastening method of a liquefier insulation system according to another embodiment of the present invention. DETAILED DESCRIPTION

[0029] The present invention may be subjected to various transformations and may have several embodiments, and specific embodiments are exemplified in the drawings and described in detail in the content of the invention. However, this is not intended to limit the present invention to a specific embodiment, but should be understood to include all transformations, equivalents and even substitutes included in the concept and technical scope of the present invention. In the process of describing the present invention, if it is judged that the specific description of the relevant known technology may confuse the gist of the present invention, its detailed description will be omitted.

[0030] The terms "first", "second" and the like can be used to describe various structural elements, but the components are not limited by the terms. The terms are only used to distinguish one structural element from other structural elements.

[0031] The terms used in this application are only used to describe specific embodiments and are not intended to limit the present invention. Unless the context clearly dictates otherwise, a singular expression includes a plural expression.

[0032] In this specification, terms such as "including" or "having" are used to specify the existence of features, numbers, steps, actions, structural elements, components or combinations thereof recorded in the specification, and do not preclude the existence or additional possibility of one or more other features or numbers, steps, actions, structural elements, components or combinations thereof.

[0033] The present invention will be described in detail below with reference to the accompanying drawings, focusing on the embodiments of the present invention. The same reference numerals disclosed in the drawings represent the same components.

[0034] Figure 1 shows the general form of a liquefier, Figures 2 to 4 The structure of a liquefier insulation system according to an embodiment of the present invention is shown.

[0035] Reference Figures 1 to 4 According to an embodiment of the present invention, the liquefier insulation system is as follows Figure 1 As shown, a storage container 100 may be provided for storing liquefied gas (eg, hydrogen, etc.).

[0036] In one embodiment, the storage container 100 may include: a lower end flange 130, which has an open opening portion formed at the upper end and is formed to protrude a predetermined length toward the outside of the storage container 100 to surround the opening portion; and an upper end flange 140, which is configured to be combined with the lower end flange 130 to be able to close the opening portion.

[0037] In addition, as shown in the figure, the storage container 100 may include: a storage part 110 storing liquefied gas; and a neck 120 formed with a predetermined length from the opening so that a portion of the opening side may have a smaller diameter than the storage part.

[0038] According to an implementation example, the storage container 100 may also be in a form in which the neck 120 is not distinguished from the storage container 100. That is, the neck 120 with a relatively small diameter may not be independently formed on the opening side. In this case, the technical concept of the present invention described later may also be applied. Below, the storage container 100 is mainly described in a manner in which it includes the storage portion 110 and the neck 120 with a diameter smaller than that of the storage portion 110, but the present invention is not necessarily limited to this.

[0039] According to an embodiment of the present invention, the liquefier insulation system may be provided on the neck of such a storage container 100 .

[0040] Conventional insulation systems are limited to the opening side of the storage container 100 , for example, a plurality of baffles 200 are provided inside the neck 120 .

[0041] Such a plurality of baffles 200 are arranged parallel or nearly parallel to the bottom of the storage container 100, and each baffle is arranged in a stacked manner with a predetermined interval. The plurality of baffles can absorb heat during the regasification process of the liquefied gas stored in the storage container 100 and / or the storage part 110 of the storage container 100, slowing down the gasification of the liquefied gas, and the baffles cooled by the low temperature of the liquefied gas can cut off the external heat flowing in from the opening of the storage container 100, thereby performing the functions of thermal insulation and reliquefaction of the liquefier. The technical concept of using the plurality of baffles 200 for thermal insulation and / or reliquefaction of cryogenic fluids as described above is widely known not only in liquefiers, but also in various fields such as cryogenic fluid storage tanks for storing cryogenic fluids, and thus will not be described in detail in this specification.

[0042] However, as in the past, when simply arranging a plurality of baffles, there is a problem that external heat flowing in from the opening side of the storage container 100 is easily transferred to the plurality of baffles, which reduces the insulation performance and the efficiency.

[0043] Therefore, the present invention provides a technical concept that even if the number of baffles is slightly reduced, the transfer of external heat to the baffle 200 can be further suppressed by disposing a vacuum portion 300 having a vacuum space between the baffle and the upper flange 140 .

[0044] Reference Figure 2 The liquefier insulation system according to the technical concept of the present invention may include: a plurality of baffles 200 disposed inside the opening side of the storage container 100; and a vacuum portion 300 disposed on the upper portion of the plurality of baffles 200.

[0045] According to an embodiment of the present invention, the vacuum part 300 may be formed in a box shape having a shape (e.g., a cylindrical shape) that can be inserted into the neck 120 or the opening of the storage container 100. At this time, the interior of the box shape maintains a vacuum state to ensure a vacuum space.

[0046] Of course, the vacuum portion 300 and / or the baffle 200 may have various shapes according to the cross-sectional shape of the opening portion or the neck portion 120 of the storage container 100 .

[0047] A plurality of baffles 200 may be disposed at a predetermined interval below the vacuum portion 300 .

[0048] According to an implementation example, the liquefier insulation system may further include: a predetermined insulation component 150 disposed between the lower end flange 130 and the upper end flange 140 of the storage container 100 .

[0049] In one embodiment, the thermal insulation component 150 may be made of a material with low thermal conductivity, such as G10 material.

[0050] The heat insulating member 150 may be formed to have an area that can cover the entire opening of the storage container 100. In addition, as described above, the heat insulating member 150 is located between the upper flange 140 and the lower flange 130, which can prevent the vacuum portion 300 from directly contacting or approaching the upper flange 140, and can greatly suppress the transfer of heat from the outside to the inside of the storage container 100.

[0051] like Figure 5 As shown, the plurality of baffles 200 can be fixed at predetermined intervals by a predetermined fixing device. As long as the plurality of baffles 200 can be fixed along the A axis in the figure, the fixing device can be implemented in various forms. For example, the fixing device can be implemented by a combination of bolts and nuts, or can be implemented by a predetermined pin shape.

[0052] According to an implementation example, the fixing device may penetrate the plurality of baffles 200 at a predetermined position to fix the plurality of baffles 200 , or may be combined with the lower end of the vacuum portion 300 to fix the plurality of baffles 200 and the vacuum portion 300 together.

[0053] Figure 5 FIG. 4 is a diagram for describing a fastening method of a liquefier insulation system according to an embodiment of the present invention.

[0054] Reference Figure 5 The liquefier insulation system according to the embodiment of the present invention may include: a plurality of baffles 200 disposed inside the neck 120 of the storage container 100 ; and a vacuum portion 300 disposed on the upper ends of the plurality of baffles 200 .

[0055] In the drawings, the plurality of baffles 200 and the vacuum portion 300 are shown to be separated by a predetermined distance from the inner surface of the neck 120 of the storage container 100, but this is an example shown for the convenience of visually distinguishing the various structural elements in the drawings. In practice, the edges of the plurality of baffles 200 and the side surfaces of the vacuum portion 300 may be formed to contact the inner surface of the neck 120 of the storage container 100, or may be formed to be very close to the inner surface of the neck 120 of the storage container 100 although not in contact.

[0056] When the liquefier insulation system includes the insulation member 150 as described above, the insulation member 150 may be configured to cover the opening of the storage container 100 at the upper portion of the vacuum portion 300 as described above.

[0057] At this time, in order to prevent the insulating member 150 from directly contacting the upper portion of the vacuum part 300 , a predetermined range (hereinafter referred to as an edge portion) from the edge of the insulating member 150 may be thicker than the remaining range.

[0058] In one embodiment, as shown in the figure, the edge portion of the heat insulating member 150 may be formed to have the same width as that of the lower end flange 130 or to have a range slightly narrower than the width of the lower end flange 130 .

[0059] Due to the edge of the heat insulating member 150, the upper portion of the vacuum portion 300 and the lower surface of the heat insulating member 150 are not in direct contact with each other at the opening of the storage container 100, but a predetermined interval is generated. A person skilled in the art of the present invention can easily infer that such an interval that can avoid direct contact between the structural elements can more effectively suppress the transfer of heat from the outside to improve the heat insulation effect.

[0060] On the other hand, according to another embodiment of the present invention, when the insulation member 150 is fastened, the liquefier insulation system may also include a second insulation member independent of the insulation member 150. Figure 6 Shown in.

[0061] Figure 6 FIG. 4 is a diagram for describing a fastening method of a liquefier insulation system according to another embodiment of the present invention.

[0062] Reference Figure 6 As described above, the liquefier insulation system may include an insulation member 150 and a second insulation member 151 between a lower end flange 130 formed outside the neck 120 of the storage container 100 and an upper end flange 140 closing the opening of the storage container 100 .

[0063] The insulating member 150 is the same as described above, and the second insulating member 151 can be formed in the following manner, that is, having a width that is the same as or similar to the width of the edge portion of the insulating member 150 and / or the lower end flange 130, and having a hollow ring shape within a predetermined range of the central portion, such as a portion corresponding to the opening portion of the storage container 100.

[0064] Moreover, the upper flange 140 and the insulating member 150 may be fixed by a fixing device 400 , the insulating member 150 and the second insulating member 151 may be fixed by a separate fixing device 400 , and the lower flange 130 and the second insulating member 151 may be fixed by another fixing device 400 .

[0065] This structure can have the following effects: the upper flange 140, the lower flange 130 and the insulation member are more firmly fastened, and the interval between the upper end of the vacuum part 300 and the lower surface of the insulation member 150 is expanded, thereby slightly improving the insulation effect.

[0066] The foregoing description is for illustrative purposes, and those skilled in the art to which the present invention belongs may understand that the present invention may be easily transformed into other specific forms without changing the technical concept or essential features of the present invention. Therefore, the embodiments described above should be understood to be exemplary in all respects and not restrictive. For example, each structural element described as a single type may also be implemented in a dispersed manner, and similarly, each structural element described as a dispersed type may also be implemented in a combined form.

[0067] The scope of the present invention is indicated by the scope of the invention claims described below rather than the above detailed description, and the meaning and scope of the scope of the invention claims and all changes or deformations derived from their equivalent concepts should be interpreted as being included in the scope of the present invention.

[0068] [Industrial Applicability]

[0069] The present invention can be used for a liquefier insulation system and liquefaction using the same.

Claims

1. A liquefier insulation system, comprising: A storage container having an open opening formed at an upper end; a plurality of baffles disposed at predetermined intervals inside the opening of the storage container; and A vacuum portion, which is disposed on the upper portion of the plurality of baffles; The vacuum portion is configured such that a lower portion is spaced a predetermined distance from an uppermost baffle plate among the plurality of baffle plates.

2. The liquefier insulation system of claim 1, wherein: The storage container comprises: a lower end flange formed to protrude a predetermined length toward the outside of the storage container so as to surround the opening; and The upper end flange is configured to be combined with the lower end flange to close the opening.

3. The liquefier insulation system of claim 2, wherein: Also includes: The heat insulating member is disposed between the lower end flange and the upper end flange.

4. The liquefier insulation system of claim 3, wherein: The heat insulating member includes: an edge portion, which is formed so that a predetermined range from the edge is thicker than the remaining range by a predetermined thickness; Thus, the upper portion of the vacuum portion can be spaced apart from the lower surface of the heat insulating member by a predetermined distance.

5. The liquefier insulation system of claim 1, wherein: The storage container comprises: a storage unit storing liquefied liquefied gas; and a neck portion formed at a predetermined height in such a manner as to have a smaller diameter than the storage portion; The plurality of baffles and the vacuum portion are configured to be located only inside the neck portion.

6. A liquefier comprising: A storage container having an open opening formed at an upper end; and a liquefier insulation system provided to the storage container; Wherein, the liquefier insulation system comprises: a plurality of baffles disposed at predetermined intervals inside the opening of the storage container; and A vacuum portion, which is disposed on the upper portion of the plurality of baffles; The vacuum portion is configured such that a lower portion is spaced a predetermined distance from an uppermost baffle plate among the plurality of baffle plates.

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