KR-20260062108-A - INNER TANK SUPPORT INSTALLED IN DOUBLE LAYERED INSULATED VACUUM TANK AND A DOUBLE LAYERED INSULATED VACUUM TANK COMPRISING THE SAME

KR20260062108AKR 20260062108 AKR20260062108 AKR 20260062108AKR-20260062108-A

Abstract

An inner tank support installed in a double-insulated vacuum tank is provided. The inner tank support comprises an outer tank support installed on the inner circumference of the outer tank of the double-insulated vacuum tank and an inner tank support installed on the outer circumference of the inner tank, which is positioned at a predetermined distance from the outer tank toward the center of the double-insulated vacuum tank and coupled to the outer tank support. The outer tank support and the inner tank support coupled thereto may be characterized in that the coupling line in the cross-section is installed parallel to the horizontal direction or parallel to the vertical direction.

Inventors

허행성
유병문
황범석
박광준

Assignees

한화오션 주식회사

Dates

Publication Date: 20260507
Application Date: 20241024

Claims (8)

An outer tank support installed on the inner surface of the outer tank of a double-insulated vacuum tank; and Including an inner tank support installed on the outer surface of an inner tank positioned at a predetermined distance from the outer tank in the direction of the center of the double-insulated vacuum tank and coupled to the outer tank support; The above-mentioned outer support and the above-mentioned inner support coupled thereto are, Characterized by the fact that the connecting line is installed so as to be parallel to the horizontal direction or parallel to the vertical direction in the cross-section. Internal tank support.
In claim 1, The above external support is, A first outer tank support installed at the pole position of the above outer tank; and A second outer tank support installed at the equatorial position of the above outer tank; comprising The above internal support is, A first inner tank support installed at the pole position of the above inner tank; and A second inner tank support installed at the equatorial position of the inner tank; comprising Internal tank support.
In claim 2, The above-mentioned first outer support is formed in a cylindrical shape, and The first inner support above is formed in a cylindrical shape, and Characterized by the first inner support being positioned inside the cylindrical shape of the first outer support. Internal tank support.
In claim 2, The above second outer support is a bottom portion formed in the shape of a square plate; and A pair of side wall portions extending in the same direction orthogonal to the bottom portion from both sides of the bottom portion; comprising The above-mentioned second inner support is formed in the shape of a rectangular column, and Characterized by the second inner support being positioned in a concave space formed between the bottom portion of the second outer support and a pair of side wall portions. Internal tank support.
In claim 2, The second outer support is installed at a uniformly spaced distance from adjacent second outer supports in the circumferential direction by a predetermined distance, and The above-mentioned second inner support is characterized by being installed at a uniformly spaced distance in the circumferential direction from adjacent second inner supports by a predetermined distance. Internal tank support.
In claim 1, A buffer member provided between the outer support and the inner support; further comprising Internal tank support.
In a double-insulated vacuum tank for storing fluid, Characterized by allowing radial movement of the inner tank and restricting tangential movement of the inner tank. Double-walled vacuum tank.
In claim 7, An outer tank forming the exterior of the above-mentioned double-insulated vacuum tank; An inner tank positioned at a predetermined distance from the inner surface of the outer tank toward the center of the double-insulated vacuum tank; A vacuum insulation space formed between the outer tank and the inner tank, filled with insulation powder; An outer tank support installed on the inner surface of the above outer tank; and Includes an inner tank support installed on the outer surface of the inner tank and coupled to the outer tank support; The above-mentioned outer support and the above-mentioned inner support coupled thereto are, Characterized by the fact that the connecting line is installed so as to be parallel to the horizontal direction or parallel to the vertical direction in the cross-section. Double-walled vacuum tank.

Description

Inner tank support installed in a double-layered insulated vacuum tank and a double-layered insulated vacuum tank comprising the same The present invention relates to an inner tank support installed in a double-insulated vacuum tank for storing cryogenic fluids such as liquid hydrogen, and a double-insulated vacuum tank including the same. More specifically, the invention relates to an inner tank support capable of stably supporting the inner tank even when thermal shrinkage stress occurs in the inner tank or shaking occurs in the inner tank due to hull movement during the operation of the double-insulated vacuum tank, and a double-insulated vacuum tank including the same. With increasing global interest in greenhouse gas and air pollutant emissions and the rapid tightening of international environmental regulatory standards, research on transportation technologies for eco-friendly energy, such as hydrogen, is actively being conducted in ships. Hydrogen transportation can be broadly classified into inland and maritime transport. Inland transport is possible using pipelines, dedicated vehicles equipped with storage facilities, or railways, while maritime transport is possible using floating structures such as vessels equipped with storage facilities. Until recently, hydrogen has been supplied and utilized on a small scale by compressing it to over 200 bar, storing it in special containers, and transporting it. However, for efficient transportation, it should be considered to store and transport hydrogen in a liquid state obtained by cooling and pressurizing gaseous hydrogen. Liquid hydrogen can be obtained by cooling gaseous hydrogen to a cryogenic state (-253 degrees Celsius at atmospheric pressure) and can be stored and transported in a liquid state by storing it in a special cryogenic insulated storage tank. However, in order to manage the thermal shrinkage stress generated in the inner tank of a double-insulated vacuum tank due to cryogenic cargo, the sliding condition must be satisfied for the inner tank support, and in order to stably support the inner tank even under shaking caused by hull motion, the fixing condition must be satisfied for the inner tank support; however, if the sliding condition is satisfied, problems may arise regarding the fixing condition. Accordingly, there is a demand for an inner tank support structure capable of effectively satisfying both sliding and fixed conditions, and for a double-insulated vacuum tank including the same. FIG. 1 is a cross-sectional perspective view showing a double-insulated vacuum tank according to the present embodiment. FIG. 2 is a cross-sectional view showing a double-insulated vacuum tank according to the present embodiment. FIG. 3 is a perspective view showing an inner tank support according to the present embodiment. FIG. 4 is a front view showing an inner tank support according to the present embodiment. FIG. 5 is a plan view showing an inner tank support according to the present embodiment. FIG. 6 is a perspective view showing a first outer support and a first inner support according to the present embodiment. FIG. 7 is a perspective view showing a second outer support and a second inner support according to the present embodiment. FIG. 8 is a diagram showing the operating state of the inner tank support according to the present embodiment. In order to fully understand the present invention, the operational advantages of the present invention, and the objectives achieved by the implementation of the present invention, reference must be made to the accompanying drawings illustrating preferred embodiments of the present invention and the contents described in the accompanying drawings. The present invention will be described in detail below by explaining preferred embodiments of the invention with reference to the attached drawings. Identical reference numerals in each drawing indicate identical components. In this specification, singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, when the double-insulated vacuum tank is formed in a spherical shape, the circumferential direction refers to a direction parallel to an imaginary line extending along the perimeter of the double-insulated vacuum tank. In this specification, when a double-insulated vacuum tank is formed in a spherical shape, the radial direction refers to a direction parallel to an imaginary line extending from the center inside the double-insulated vacuum tank to the outside of the double-insulated vacuum tank. In this specification, when a double-insulated vacuum tank is formed in a cylindrical shape, the cylinder of the double-insulated vacuum tank refers to the part forming the body of the double-insulated vacuum tank. In this specification, when a double-insulated vacuum tank is formed in a cylindrical shape, the head of the double-insulated vacuum tank refers to a portion formed in a semi-spherical shape on each sid