CN116568594A - Liquefied gas storage tank and ship comprising same - Google Patents
Liquefied gas storage tank and ship comprising same Download PDFInfo
- Publication number
- CN116568594A CN116568594A CN202180082881.4A CN202180082881A CN116568594A CN 116568594 A CN116568594 A CN 116568594A CN 202180082881 A CN202180082881 A CN 202180082881A CN 116568594 A CN116568594 A CN 116568594A
- Authority
- CN
- China
- Prior art keywords
- liquefied gas
- storage tank
- gas storage
- tank
- guide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
- B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
- B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
- B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
- B63B25/16—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed heat-insulated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B17/00—Vessels parts, details, or accessories, not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B17/00—Vessels parts, details, or accessories, not otherwise provided for
- B63B17/0027—Tanks for fuel or the like ; Accessories therefor, e.g. tank filler caps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/004—Details of vessels or of the filling or discharging of vessels for large storage vessels not under pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/03—Mixtures
- F17C2221/032—Hydrocarbons
- F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/01—Improving mechanical properties or manufacturing
- F17C2260/016—Preventing slosh
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2270/00—Applications
- F17C2270/01—Applications for fluid transport or storage
- F17C2270/0102—Applications for fluid transport or storage on or in the water
- F17C2270/0105—Ships
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
A liquefied gas storage tank according to an embodiment of the present invention may include: a tank member in which liquefied gas is stored; and an inner frame unit provided inside the tank member to replace the oscillation wall and guide the flow of the liquefied gas.
Description
Technical Field
The present invention relates to a liquefied gas storage tank and a ship including the same.
Background
Transportation fuels such as automobiles and ships, and petroleum resources such as various fuels used at home and abroad are gradually exhausted, and the use of liquefied gas as an alternative energy source is increasing due to the rising of oil prices and the enhancement of environmental regulations.
Liquefied gases include liquefied natural gas (Liquefied Natural Gas; LNG) or liquefied propane gas (Liquefied Propane Gas; LPG) and the like. These liquefied gases have a volume much smaller than that of the gas (for example, in the case of LNG, the volume is reduced to 1/600 in the case of liquefaction and to 1/250 in the case of LPG), and are convenient to store and transport in the liquefied state, but have difficulty in being kept below the boiling point (about-162 ℃ in the case of LNG and about-50 ℃ in the case of LPG).
In order to store these liquefied gases, an ultralow temperature liquefied gas storage tank that keeps the liquefied gas below the boiling point is required.
However, the liquefied gas storage tank is a structure for storing liquefied fuel as a transport means such as a ship, which stores liquid therein, and thus the liquefied gas storage tank cannot always be kept level with the water surface or the ground as a floating structure such as a ship or a land transport means moves, so that the flow of liquid fuel cannot be avoided.
Due to the flow of the liquefied gas, the inner wall portion of the liquefied gas storage tank collides with the flowing liquefied gas, and the continuous collision may cause damage to the liquefied gas storage tank.
Thus, an oscillation bulkhead (swash bulk head wall) is conventionally provided inside the liquefied gas storage tank to prevent the liquefied gas from swaying resulting in damage to the liquefied gas storage tank.
The bulkhead is provided in the form of a bulkhead in the middle of the liquefied gas storage tank, and is a high-weight component, so that construction in the liquefied gas storage tank is difficult, and the manufacturing cost is increased.
Accordingly, in order to solve or improve the above-described problems, studies on a liquefied gas storage tank and a ship including the same are required.
Disclosure of Invention
Technical problem
The present invention is directed to a liquefied gas storage tank and a ship including the same, for preventing a problem that an inner wall portion of the liquefied gas storage tank collides with flowing liquefied gas due to the flow of the liquefied gas.
In another aspect, the present invention is directed to a liquefied gas storage tank and a ship including the same, which can prevent a problem that an inner wall portion of the liquefied gas storage tank collides with flowing liquefied gas due to the flow of the liquefied gas without using a conventional bulkhead, and support the liquefied gas storage tank.
Technical proposal
A liquefied gas storage tank according to an embodiment of the present invention may include: a tank member in which liquefied gas is stored; and an inner frame unit provided inside the tank member to replace the oscillation wall and guide the flow of the liquefied gas.
In particular, the inner frame unit of the liquefied gas storage tank according to one embodiment of the present invention may include: a ring support continuously provided along an inner circumference of the can; and a division guide coupled to the ring support and provided in a shape having a curved surface for guiding the liquefied gas to return to a flow inflow direction along the curved surface portion.
Wherein the division guide of the liquefied gas storage tank according to an embodiment of the present invention may be provided in a shape in which one end is coupled to the ring support and the other end is bent toward the short side wall portion of the tank member.
In addition, the division guide of the liquefied gas storage tank according to an embodiment of the present invention may be provided in plurality along the inner circumference of the tank body member, and formed such that a curved surface forming direction is opposite to a curved surface forming direction of another adjacent division guide.
Alternatively, the division guide of the liquefied gas storage tank according to an embodiment of the present invention may be provided in plurality along the inner circumference of the tank body member and formed in the same curved surface forming direction as that of another adjacent division guide.
Wherein the ring support of the liquefied gas storage tank according to an embodiment of the present invention may be formed in a T-shape in cross section.
Furthermore, the liquefied gas storage tank according to an embodiment of the present invention may further include: a pump unit provided with an inflow pipe section connecting the inside and the outside of the tank member, through which the liquefied gas stored in the inside of the tank member is sucked and transferred to the outside, the inner frame unit may include: a residual liquid accommodating member provided at a bottom of the tank member and formed with a recess portion into which the liquefied gas is introduced so that an end of the inflow pipe portion is immersed in the liquefied gas; and a top end guide coupled to a top end of the residual liquid accommodating part.
Wherein the top end guide of the liquefied gas storage tank according to an embodiment of the present invention may be provided in a shape having a curved surface for guiding the liquefied gas to return to a flowing-in direction along the curved surface portion.
In addition, the residual liquid accommodating part of the liquefied gas storage tank according to an embodiment of the present invention may be formed with a residual liquid flow hole in which the liquefied gas moves at a top end.
Furthermore, the inner frame unit of the liquefied gas storage tank according to an embodiment of the present invention may include: the bottom supporting piece is at least arranged at the bottom of the tank body piece and is formed into a T-shaped cross section; and an inclined guide coupled to the horizontal portion of the top end of the bottom support, and having one end coupled to one side end of the horizontal portion of the bottom support and the other end coupled to the bottom of the tank for guiding the liquefied gas across the bottom support.
A ship according to another embodiment of the present invention may include: the liquefied gas storage tank; and a hull in which the liquefied gas storage tank is provided, and which includes an engine section that provides driving force.
Effects of the invention
The liquefied gas storage tank and the ship comprising the same have the advantage that the problem that the inner wall part of the liquefied gas storage tank collides with the flowing liquefied gas due to the flowing liquefied gas can be prevented.
On the other hand, the liquefied gas storage tank and the ship comprising the same according to the present invention have advantages in that the problem that the inner wall portion of the liquefied gas storage tank collides with the flowing liquefied gas due to the flow of the liquefied gas can be prevented and the liquefied gas storage tank can be supported without using the conventional bulkhead for the ship.
This has the following effects: the manufacture of the liquefied gas storage tank is easier, the manufacture cost is reduced, and the damage of the liquefied gas storage tank can be prevented.
However, various advantageous advantages and effects of the present invention are not limited to the above, which is more easily understood in describing the embodiments of the present invention.
Drawings
Fig. 1 is a side view showing an embodiment in which ring supports and split guides are included in a liquefied gas storage tank of the present invention, the embodiment being formed such that curved surfaces of adjacent split guides are formed in different directions.
Fig. 2 is a perspective view showing the ring support and the split guide of fig. 1, the embodiment being formed such that curved surfaces of adjacent split guides are formed in different directions.
Fig. 3 is a side view showing an embodiment in which ring supports and segment guides are included in the liquefied gas storage tank of the present invention, the embodiment being formed such that curved surfaces of adjacent segment guides are formed in the same direction.
Fig. 4 is a perspective view showing the ring support and the split guides of fig. 3, which are formed such that curved surfaces of adjacent split guides are formed in the same direction.
Fig. 5 is a front view of an embodiment showing that the liquefied gas storage tank of the present invention includes a residual liquid receiving part and a top end guide.
Fig. 6 is a front view of an embodiment showing the inclusion of a bottom support and a tilt guide in the liquefied gas storage tank of the present invention.
Fig. 7 is a side view showing the liquefied gas storage tank and the ship including the same according to the present invention.
Detailed Description
Hereinafter, preferred embodiments of the present invention are described with reference to the accompanying drawings. However, the embodiments of the present invention may be modified in various ways, and the scope of the present invention is not limited to the embodiments described below. Furthermore, embodiments of the present invention are intended to more fully describe the present invention to those of ordinary skill in the art. The shape and size of the components may be exaggerated in the drawings for a clearer description.
Furthermore, in this specification, unless the context clearly dictates otherwise, singular expressions cover plural expressions and the same reference numerals or similarly labeled reference numerals refer to the same components or corresponding components throughout the specification.
The present invention relates to a liquefied gas storage tank 1 and a ship including the liquefied gas storage tank 1, wherein an inner frame unit 20 for replacing a bulkhead (swash bulk head wall) is provided in an inner part of a tank body member 10, and the inner frame unit 20 guides a flow of liquefied gas, thereby preventing a problem that an inner wall part of the liquefied gas storage tank 1 collides with the flowing liquefied gas due to the flow of the liquefied gas.
On the other hand, the liquefied gas storage tank 1 and the ship including the liquefied gas storage tank 1 according to the present invention can prevent the problem that the flow of the liquefied gas collides with the flowing liquefied gas and support the liquefied gas storage tank 1 without using the conventional bulkhead by providing the inner frame unit 20.
Thereby, the manufacture of the liquefied gas storage tank 1 is easier, the manufacture cost is reduced, and the damage of the liquefied gas storage tank 1 can be prevented.
In particular, the liquefied gas storage tank 1 of the present invention may include a tank body member 10, an inner frame unit 20.
Fig. 1 and 3 are side views of an embodiment showing that the liquefied gas storage tank 1 of the present invention includes the ring support 21 and the division guide 22, fig. 1 shows an embodiment in which the curved surface formation direction of the division guide 22 is opposite to the curved surface formation direction of another adjacent division guide 22, and fig. 3 shows an embodiment in which the formation directions are the same.
In addition, fig. 2 and 4 are perspective views showing the ring support and the division guide of fig. 1 or 3, respectively.
The tank body member 10 of the liquefied gas storage tank 1 according to an embodiment of the present invention may store liquefied gas.
In addition, the inner frame unit 20 of the liquefied gas storage tank 1 according to an embodiment of the present invention may be provided inside the tank body 10 instead of the bulkhead and guide the flow of the liquefied gas.
That is, the inner frame unit 20 is provided inside the tank member 10 instead of the conventional bulkhead for the oscillation, thereby functioning to guide the flow of the liquefied gas.
Thus, the problem of impact of the liquefied gas on one side of the inside of the tank body 10 can be improved, and the liquefied gas storage tank 1 can be manufactured more easily because of the lack of a high-weight bulkhead, and manufacturing cost can be reduced.
Specifically, as one example, the inner frame unit 20 may include a ring support 21, a division guide 22.
Wherein the ring support 21 may be continuously arranged along the inner circumference of the can body 10. In addition, the division guide 22 is coupled to the ring support 21 and is provided in a shape having a curved surface for guiding the liquefied gas to return to the flow inflow direction D along the curved surface portion.
That is, the ring support 21 functions to support the can 10. Thus, the tank member 10 can be supported even if the conventional bulkhead is removed, and replaced with the inner frame unit 20 of the present invention. With such a supporting function of the ring support 21, by arranging the ring support 21 in a ring shape continuous in the inner circumferential direction of the can body 10, it is possible to support more firmly.
With such a ring support 21, the supporting force can be further improved by defining the shape of the cross section. That is, the ring support 21 of the liquefied gas storage tank 1 according to one embodiment of the present invention may be formed in a T-shape in cross section.
The function of the split guide 22 of the present invention is to improve the problem of the liquefied gas suddenly moving from one side of the tank member 10 to the other side to apply an impact to the tank member 10. For this reason, the division guide 22 is formed to have a curved shape, thereby guiding the liquefied gas to be able to flow along the curved portion of the division guide 22. Further, thereby, the liquefied gas is guided back to the flow inflow direction D delivered to the partition guide 22.
Thus, the problem of the liquefied gas suddenly leaning from one side of the tank member 10 to the other side is ameliorated, and the problem of the liquefied gas applying an impact to the tank member 10 is ameliorated.
Specifically, the division guide 22 of the liquefied gas storage tank 1 according to one embodiment of the present invention may be provided in a shape in which one end is coupled to the ring support 21 and the other end is bent toward the short side wall portion 10b of the tank member 10. The short side wall portion 10b is a side wall portion of the can body 10 having a short length in a plan view of the can body 10. The long side wall 10c is a side wall of the can 10 having a long length in a plan view of the can 10.
That is, the division guide 22 may be formed in a shape curved toward any one of the both side short side wall parts 10b of the can body 10. Therefore, when the liquefied gas stored in the one-side short-side wall portion 10b suddenly moves in the direction of the other-side short-side wall portion 10b to generate a flow, the liquefied gas flows along the curved surface of the partition guide 22 and returns to the direction of the one-side short-side wall portion 10b at the original position. This can prevent the problem of the liquefied gas from striking the other short side wall 10b.
Further, as an example, such a divided guide 22 may be formed in a curved surface shape curved in the opposite direction to the adjacent other divided guide 22.
That is, the division guide 22 of the liquefied gas storage tank 1 according to one embodiment of the present invention may be provided in plurality along the inner circumference of the tank body member 10 and formed such that the curved surface forming direction is opposite to the curved surface forming direction of the adjacent other division guide 22.
Accordingly, by dividing the guide 22, it is possible to prevent the problem of impact caused by the liquefied gas suddenly transferred from any one of the both side directions.
As one example, some of the split guides 22 are curved to face the one-side short-side wall portion 10b, and the rest of the split guides 22 adjacent are curved to face the other-side short-side wall portion 10b. Accordingly, some of the division guides 22 may guide the portion of the liquefied gas suddenly transferred from the one-side short-side wall portion 10b to be returned to the one-side short-side wall portion 10b, and the adjacent other division guides 22 may guide the portion of the liquefied gas suddenly transferred from the other-side short-side wall portion 10b to be returned to the other-side short-side wall portion 10b.
Further, as an example, the plurality of division guides 22 may be formed in a curved surface shape that is curved in the same direction.
That is, the division guide 22 of the liquefied gas storage tank 1 according to one embodiment of the present invention may be provided in plurality along the inner circumference of the tank body member 10 and formed in the same curved surface forming direction as that of the adjacent other division guide 22.
Accordingly, by dividing the guide 22, the problem of impact caused by the liquefied gas suddenly transferred from one side direction can be prevented.
As an example, when the plurality of division guides 22 are curved to face the one-side short-side wall portion 10b, the liquefied gas suddenly transferred from the one-side short-side wall portion 10b may be guided to return to the one-side short-side wall portion 10b again.
With this embodiment of the split guide 22, a larger flow rate of the liquefied gas passing from the one-side short-side wall portion 10b can be guided back than in the aforementioned embodiment of the split guide 22 formed by bending in the opposite direction to the other split guide 22 adjacent thereto.
Fig. 5 is a front view of the embodiment, showing that the liquefied gas storage tank 1 of the present invention includes a residual liquid container 23 and a top end guide 24. Referring to fig. 5, the liquefied gas storage tank 1 of the present invention may further include a pump unit 30. Further, the inner frame unit 20 of the present invention may include a residual liquid accommodating member 23, a top end guide member 24.
Wherein the pump unit 30 of the liquefied gas storage tank 1 according to an embodiment of the present invention may be provided with an inflow pipe section 31 connecting the inside and the outside of the tank member 10. In addition, the pump unit 30 may suck the liquefied gas stored in the inside of the tank member 10 through the inflow pipe portion 31 and then transmit it to the outside.
The residual liquid receiving part 23 of the present invention may be provided at the bottom 10a of the tank member 10 and formed with a recess 23a into which liquefied gas is charged so that the end of the inflow pipe part 31 is immersed in the liquefied gas.
In addition, the tip guide 24 of the present invention may be coupled to the tip of the residual liquid receiver 23. Further, the tip guide 24 of the present invention may be provided in a shape having a curved surface for guiding the liquefied gas to return to the flow inflow direction D along the curved surface portion.
Part of the liquefied gas stored in the tank member 10 is transferred to the outside through the inflow pipe portion 31 of the pump unit 30, and the rest of the liquefied gas remains in the bottom 10a of the tank member 10. In particular, the residual liquefied gas is collected in the recess 23a of the residual liquid container 23 located below the bottom 10a of the tank member 10, so that even if the residual liquefied gas is small, the end of the inflow pipe 31 is immersed in the liquefied gas.
In addition, in order to make the liquefied gas collect into the recess 23a of the residual liquid receiver 23, a residual liquid flow hole 23b may be formed on the residual liquid receiver 23.
That is, the residual liquid receiver 23 of the liquefied gas storage tank 1 according to one embodiment of the present invention may be formed with a residual liquid flow hole 23b for movement of liquefied gas at the top end.
Thereby, the liquefied gas located adjacent to the bottom 10a of the tank member 10 can move to the recess 23a of the residual liquid accommodating member 23 through the residual liquid flow hole 23b.
The tip guide 24 of the present invention serves to return the liquefied gas suddenly flowing due to the inclination of a transport means such as a ship to its original position.
Specifically, the tip guide 24 of the present invention includes a curved surface portion of a curved shape. In addition, when the liquefied gas suddenly flows to be transferred to the curved surface portion of the top end guide 24, the liquefied gas moves along the curved surface portion of the top end guide 24.
Thus, the liquefied gas is guided to flow toward the direction in which the curved surface portion of the tip guide 24 faces. As an example, the curved surface portion of the tip guide 24 may be formed in a shape curved toward any one of the both side short side wall portions 10b. Therefore, when the liquefied gas stored in the one-side short-side wall portion 10b suddenly moves in the direction of the other-side short-side wall portion 10b to generate a flow, the liquefied gas flows along the curved surface of the tip guide 24 and returns to the direction of the one-side short-side wall portion 10b at the original position. This can prevent the problem of the liquefied gas from striking the other short side wall 10b.
Fig. 6 is a front view of an embodiment showing the inclusion of a bottom support 26 and a tilt guide 25 in the liquefied gas storage tank 1 of the present invention. Referring to fig. 6, the inner frame unit 20 of the liquefied gas storage tank 1 of the present invention may include a bottom support 26, an inclined guide 25.
The bottom support 26 may be provided at least at the bottom 10a of the can 10, and formed in a T-shape in cross section. The inclined guide 25 is coupled to a horizontal portion of the top end of the bottom support 26, and one end is coupled to one side end of the horizontal portion of the bottom support 26, and the other end is coupled to the bottom 10a of the tank 10, so that the liquefied gas can be guided over the bottom support 26.
That is, the bottom support 26 functions to support the tank member 10. Thus, the tank member 10 can be supported even if the conventional bulkhead is removed, and replaced with the inner frame unit 20 of the present invention. Such a bottom support 26 may be provided only at the bottom 10a of the tank member 10, or may be provided in a ring shape continuous in the inner circumferential direction of the tank member 10.
For the bottom support 26, the supporting force can be further improved by defining the shape of the cross section as a "T".
In addition, the inclined guide 25 solves the following problems: when the liquefied gas on one side of the tank member 10 suddenly flows toward the other side of the tank member 10, the liquefied gas is gathered around the bottom support member 26 by the bottom support member 26 blocking the flow path, and the increased flow rate due to the gathering overcomes the sudden movement of the bottom support member 26 to the other side of the tank member 10, thereby applying a larger impact to the other side of the tank member 10.
That is, even if a small amount of liquefied gas remains in the interior of the tank member 10, the liquefied gas is at least at the bottom 10a of the tank member 10, and the liquefied gas at the bottom 10a is gathered by the bottom support 26 when suddenly flowing, and the problem that such gathering of the liquefied gas causes an amplified impact to be applied to the tank member 10 can be ameliorated by the inclined guide 25.
In other words, the inclined guide 25 connects the top horizontal portion of the bottom support 26 and the bottom 10a of the tank member 10 in an inclined shape to avoid the flowing liquefied gas from being caught by the "T" shape of the bottom support 26. Thus, the liquefied gas can be transferred from one side of the tank member 10 to the other side along the inclined guide member 25, thereby preventing the problem of accumulation around the bottom support member 26.
On the other hand, the inclined guide 25 is located only around the bottom 10a of the can 10, and is not located around the long side wall 10c of the can 10. This is because, when the liquefied gas is stored around the long side wall portion 10c, the flow rate of the liquefied gas is large, and the accumulation of the liquefied gas is not required to be considered. That is, if the liquefied gas is stored to the long side wall portion 10c of the tank member 10, it is only necessary to prevent the flow of the liquefied gas to prevent the shock caused by the abrupt flow of the liquefied gas without considering the accumulation.
Fig. 7 is a side view showing the liquefied gas storage tank 1 and the ship including the liquefied gas storage tank 1 of the present invention. Referring to fig. 7, the ship of the present invention may include a liquefied gas storage tank 1, a hull 2.
The description of the liquefied gas storage tank 1 is replaced with the previous description of the liquefied gas storage tank 1.
In addition, the hull 2 may be provided with a liquefied gas storage tank 1, and includes an engine part 2a that provides driving force.
That is, since the ship of the present invention includes the liquefied gas storage tank 1 as described above, it is possible to prevent the problem that the inner wall portion of the liquefied gas storage tank 1 collides with the flowing liquefied gas due to the abrupt flow of the liquefied gas without using the conventional bulkhead.
As described above, the ship of the present invention does not need to use the conventional bulkhead, so that the liquefied gas storage tank 1 can be manufactured more easily, the manufacturing cost can be reduced, and damage to the liquefied gas storage tank 1 can be prevented.
Further, since the weight of the liquefied gas storage tank 1 can be reduced, the operation efficiency of the ship can be improved.
Although the embodiments of the present invention have been described above, the scope of the claims of the present invention is not limited to the above, and various modifications and alterations may be made without departing from the technical spirit of the present invention as described in the claims, which will be apparent to those of ordinary skill in the art.
Description of the reference numerals
1: liquefied gas storage tank 2: ship body
10: can body member 20: inner frame unit
21: ring support 22: segmentation guide
23: raffinate holding part 24: tip guide
25: the inclined guide 26: bottom support
30: pump unit 31: inflow pipe section
Claims (11)
1. A liquefied gas storage tank, comprising:
a tank member in which liquefied gas is stored; and
an inner frame unit disposed inside the tank member to replace the bulkhead and guide the flow of the liquefied gas.
2. The liquefied gas storage tank of claim 1, wherein,
the inner frame unit includes:
a ring support continuously provided along an inner circumference of the can; and
and a dividing guide coupled to the ring support and configured to have a curved shape for guiding the liquefied gas to return to a flow inflow direction along the curved portion.
3. The liquefied gas storage tank of claim 2, wherein,
the split guide is provided with one end coupled to the ring support and the other end having a shape curved in a direction toward a short side wall portion of the can.
4. The liquefied gas storage tank of claim 2, wherein,
the plurality of dividing guides are provided along the inner circumferential direction of the tank member, and are formed such that the curved surface forming direction is opposite to the curved surface forming direction of the adjacent other dividing guide.
5. The liquefied gas storage tank of claim 2, wherein,
the plurality of dividing guides are arranged along the inner circumference of the tank body member, and the curved surface forming direction is the same as the curved surface forming direction of the adjacent other dividing guide.
6. The liquefied gas storage tank of claim 2, wherein,
the ring support is formed in a T-shape in cross section.
7. The liquefied gas storage tank of claim 1, further comprising:
a pump unit having an inflow pipe portion connecting the inside and the outside of the tank member, sucking the liquefied gas stored in the inside of the tank member through the inflow pipe portion, and transferring the liquefied gas to the outside,
the inner frame unit includes:
a residual liquid accommodating member provided at a bottom of the tank member and formed with a recess portion into which the liquefied gas is introduced so that an end of the inflow pipe portion is immersed in the liquefied gas; and
and a top end guide coupled to a top end of the residual liquid accommodating part.
8. The liquefied gas storage tank of claim 7, wherein,
the tip guide is provided in a shape having a curved surface for guiding the liquefied gas to return to a flowing-in direction along the curved surface portion.
9. The liquefied gas storage tank of claim 7, wherein,
the raffinate holding member is formed with a raffinate flow hole in which the liquefied gas moves at a top end.
10. The liquefied gas storage tank of claim 1, wherein,
the inner frame unit includes:
the bottom supporting piece is at least arranged at the bottom of the tank body piece and is formed into a T-shaped cross section; and
and an inclined guide member coupled to the horizontal portion of the top end of the bottom support member and having one end coupled to one side end of the horizontal portion of the bottom support member and the other end coupled to the bottom of the tank member for guiding the liquefied gas over the bottom support member.
11. A watercraft, comprising:
the liquefied gas storage tank of any one of claims 1 to 10; and
a hull in which the liquefied gas storage tank is provided, and including an engine section that provides driving force.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020200178480A KR102445125B1 (en) | 2020-12-18 | 2020-12-18 | LNG storage tank and ship having thereof |
| KR10-2020-0178480 | 2020-12-18 | ||
| PCT/KR2021/019162 WO2022131812A1 (en) | 2020-12-18 | 2021-12-16 | Liquefied gas storage tank and ship including same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116568594A true CN116568594A (en) | 2023-08-08 |
Family
ID=82059414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202180082881.4A Pending CN116568594A (en) | 2020-12-18 | 2021-12-16 | Liquefied gas storage tank and ship comprising same |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2024500741A (en) |
| KR (1) | KR102445125B1 (en) |
| CN (1) | CN116568594A (en) |
| WO (1) | WO2022131812A1 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100973174B1 (en) * | 2008-03-21 | 2010-07-30 | 대우조선해양 주식회사 | Lng storage tank for a floating structure |
| KR101007700B1 (en) * | 2008-09-29 | 2011-01-13 | 삼성중공업 주식회사 | Cargo Containment for liquid |
| KR20140091891A (en) * | 2013-01-14 | 2014-07-23 | 현대중공업 주식회사 | Pump guide and ocean floating structure having the same |
| WO2018012752A1 (en) * | 2016-07-10 | 2018-01-18 | (주)금강 | Water tank with improved durability by having structure in which training wall having opening for manhole formed therein is integrated with inner and outer walls or both side walls |
| US10876686B2 (en) * | 2017-08-31 | 2020-12-29 | Altair Engineering, Inc. | Storage tank containment system |
-
2020
- 2020-12-18 KR KR1020200178480A patent/KR102445125B1/en active IP Right Grant
-
2021
- 2021-12-16 CN CN202180082881.4A patent/CN116568594A/en active Pending
- 2021-12-16 JP JP2023536877A patent/JP2024500741A/en active Pending
- 2021-12-16 WO PCT/KR2021/019162 patent/WO2022131812A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| KR20220087940A (en) | 2022-06-27 |
| WO2022131812A1 (en) | 2022-06-23 |
| JP2024500741A (en) | 2024-01-10 |
| KR102445125B1 (en) | 2022-09-21 |
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