WO2024042737A1

WO2024042737A1 - Liquefied carbon dioxide storage equipment and marine vessel

Info

Publication number: WO2024042737A1
Application number: PCT/JP2023/005532
Authority: WO
Inventors: 和也安部; 俊夫小形; 晋介森本; 怜子 ▲高▼島; 岳佐々木
Original assignee: 三菱重工業株式会社
Priority date: 2022-08-24
Filing date: 2023-02-16
Publication date: 2024-02-29
Also published as: JP2024030419A

Abstract

This liquefied carbon dioxide storage equipment comprises a tank that is capable of retaining liquefied carbon dioxide, a pressure release device that is provided to the tank and is capable of releasing the pressure in the tank, and a discharge tube that extends from the pressure release device and discharges carbon dioxide gas from inside the tank to the outside, wherein the discharge direction of the carbon dioxide gas from the discharge tube is inclined upward with respect to the horizontal direction.

Description

Liquefied carbon dioxide storage equipment and ships

The present disclosure relates to liquefied carbon dioxide storage equipment and ships.
This application claims priority to Japanese Patent Application No. 2022-133303 filed in Japan on August 24, 2022, the contents of which are incorporated herein.

In a tank containing liquefied gas, the pressure inside the tank may increase due to evaporation of the liquefied gas within the tank. For example, Patent Document 1 discloses a configuration in which such a tank is equipped with a safety valve so that the pressure inside the tank does not rise excessively. The safety valve releases the gas inside the tank to the outside when the pressure inside the tank reaches a predetermined operating pressure value.

Japanese Patent No. 6582347

By the way, when gas is released from a safety valve, it is common to release the gas upward.
However, when the liquefied gas stored in the tank is liquefied carbon dioxide, the specific gravity of the carbon dioxide gas is greater than that of the atmosphere. For this reason, when carbon dioxide gas is released upward from the safety valve, the released carbon dioxide gas comes down like rain and is not dispersed, especially when there is no wind, causing a locally high concentration of carbon dioxide in the atmosphere. There is a possibility that it will become.

The present disclosure has been made to solve the above problems, and is a liquefied carbon dioxide storage facility that can suppress a local increase in carbon dioxide concentration when discharging carbon dioxide gas from inside a tank. , and ships.

In order to solve the above problems, a liquefied carbon dioxide storage facility according to the present disclosure includes a tank, a pressure release device, and a discharge pipe. The tank can store liquefied carbon dioxide. The pressure relief device is provided on the tank. The pressure release device is capable of releasing pressure within the tank. The discharge pipe extends from the pressure relief device and discharges carbon dioxide gas from within the tank to the outside. The discharge direction of the carbon dioxide gas in the discharge pipe is inclined upward with respect to the horizontal direction.

A ship according to the present disclosure includes a hull and a liquefied carbon dioxide storage facility as described above.

According to the liquefied carbon dioxide storage equipment and ship of the present disclosure, when carbon dioxide gas is discharged from inside the tank, it is possible to suppress the carbon dioxide concentration from becoming locally high.

1 is a plan view showing a schematic configuration of a ship according to an embodiment of the present disclosure. 2 is a diagram showing a liquefied carbon dioxide storage facility installed in a ship according to an embodiment of the present disclosure, and is a sectional view taken along line II-II in FIG. 1. FIG. 2 is a diagram showing a liquefied carbon dioxide storage facility installed in a ship according to an embodiment of the present disclosure, and is a sectional view taken along line III-III in FIG. 1. FIG. FIG. 2 is a cross-sectional view showing a discharge tube according to an embodiment of the present disclosure. FIG. 2 is a diagram schematically showing a movement trajectory of carbon dioxide gas when carbon dioxide gas is released from a discharge pipe of a ship according to an embodiment of the present disclosure.

Hereinafter, a liquefied carbon dioxide storage facility and a ship according to an embodiment of the present disclosure will be described with reference to FIGS. 1 to 5.
(Ship configuration)
In an embodiment of the present disclosure, the vessel 1 transports liquefied carbon dioxide. As shown in FIGS. 1 and 2, this ship 1 includes at least a hull 2 and a liquefied carbon dioxide storage facility 10.

(hull configuration)
The hull 2 has a pair of

sides

3A and 3B forming its outer shell, a bottom 4 (see FIG. 2), and an upper deck 5. The

sides

3A and 3B have a pair of side skins forming port and starboard sides, respectively. As shown in FIG. 2, the bottom 4 has a bottom shell plate that connects these

sides

3A and 3B. The pair of

sides

3A, 3B and the bottom 4 make the outer shell of the hull 2 U-shaped in a cross section perpendicular to the bow and stern direction Da. The upper deck 5 illustrated in this embodiment is a full deck exposed to the outside. As shown in FIG. 1, an upper structure 7 having a living area is formed in the hull 2, for example, on an upper deck 5 on the stern 2b side. Note that the position and size of the upper structure 7 can be changed as appropriate.

A cargo loading compartment (hold) 8 is formed in the hull 2 closer to the bow 2a than the superstructure 7. The cargo loading compartment 8 is recessed from the upper deck 5 toward the bottom of the ship and opens upward.

(Overall configuration of liquefied carbon dioxide storage facility)
FIG. 3 is a diagram showing a liquefied carbon dioxide storage facility installed in a ship according to an embodiment of the present disclosure, and is a sectional view taken along line III-III in FIG. 1.
As shown in FIGS. 2 and 3, the liquefied carbon dioxide storage facility 10 mainly includes a tank 11, a pressure release device 30, and a discharge pipe 40 (see FIG. 2). In addition, in FIG. 3, the pressure release device 30 is simplified and shown as a square.

(Tank configuration)
As shown in FIG. 1, a plurality of tanks 11 are arranged in the cargo loading compartment 8 in a line in the bow and aft direction Da. In the embodiment of the present disclosure, two tanks 11 are arranged at intervals in the bow-stern direction Da, for example. Each tank 11 can store liquefied carbon dioxide L.

As shown in FIG. 3, the tank 11 has, for example, a cylindrical shape. The tank 11 extends with the bow and aft direction Da as the longitudinal direction Dx. The tank 11 includes a cylindrical portion 12 and an end plate portion 13. The cylindrical portion 12 extends in the longitudinal direction Dx. As shown in FIG. 2, in this embodiment, the cylindrical portion 12 is formed in a cylindrical shape, and its cross-sectional shape perpendicular to the longitudinal direction Dx is circular. As shown in FIG. 3, the mirror plate portions 13 are arranged at both ends of the cylindrical portion 12 in the longitudinal direction Dx. Each mirror plate portion 13 has a hemispherical shape and closes the opening of the cylindrical portion 12 in the longitudinal direction Dx.
Note that the tank 11 may be arranged so that its longitudinal direction Dx is along the vertical direction Dv. Further, the tank 11 is not limited to a cylindrical shape, and may have other shapes such as a spherical shape or a rectangular shape.

The tank 11 is provided with, for example, a loading pipe 15 and a discharging pipe 16. The loading pipe 15 and the discharging pipe 16 are each connected to the tank 11. Liquefied carbon dioxide L can flow through the loading pipe 15 and the discharging pipe 16, respectively.

The loading pipe 15 loads liquefied carbon dioxide L supplied from the outside into the tank 11. For example, the loading pipe 15 penetrates the top of the tank 11 and extends inside and outside the tank 11 from above to below in the vertical direction Dv. The tip of the loading pipe 15 (in other words, the lower end in the up-down direction Dv) is open at the lower part of the tank 11 facing downward.

The discharge pipe 16 communicates with the inside of the tank 11. For example, the discharge pipe 16 penetrates the top of the tank 11 from the outside of the tank 11 and extends into the inside of the tank 11 . The distal end of the dispensing pipe 16 is arranged at the lower part of the tank 11 . A pump 17 is provided at the tip of the delivery pipe 16. Pump 17 is arranged within tank 11 . The pump 17 sucks in liquefied carbon dioxide L from the tank 11 and sends it out of the tank 11 through the discharge pipe 16 .

(Pressure release device, release pipe configuration)
As shown in FIGS. 2 and 3, the pressure release device 30 is provided in the tank 11. The pressure relief device 30 is a so-called safety valve. The pressure release device 30 releases the pressure inside the tank 11 to the outside when the pressure inside the tank 11 reaches a preset set pressure. In addition to the safety valve, the pressure release device 30 can also be used for adjusting the pressure inside the tank 11 for a desired purpose.

The pressure release device 30 is connected to the tank 11 via piping 31. Piping 31 is connected to the top of tank 11, for example, and communicates with the gas phase within tank 11. The gas phase in the tank 11 mainly contains carbon dioxide gas G generated by evaporating the liquefied carbon dioxide L. A discharge pipe 40 (see FIG. 2) is connected to the pressure release device 30. The pressure release device 30 and the discharge pipe 40 are arranged above the upper deck 5, for example.

The pressure release device 30 is in a closed state when the pressure of the gas phase within the tank 11 is less than a preset pressure. The pressure release device 30 becomes open when the pressure of the gas phase within the tank 11 reaches a preset pressure, and connects the pipe 31 and the discharge pipe 40 . As a result, the gaseous carbon dioxide gas G in the tank 11 is released from the pipe 31, through the pressure release device 30, and through the release pipe 40 to the outside.

A discharge tube 40 extends from the pressure relief device 30. The release pipe 40 releases carbon dioxide gas G from inside the tank 11 to the outside when the pressure release device 30 is in an open state. The discharge tube 40 is cylindrical, and its cross-sectional shape intersecting the extending direction may be circular or polygonal. The discharge tube 40 can be made of a metal material such as stainless steel alloy, for example.

FIG. 4 is a cross-sectional view of a discharge tube according to an embodiment of the present disclosure.
As shown in FIG. 4, the discharge pipe 40 includes a connecting pipe section 41, an inclined pipe section 42, and a curved pipe section 43. The curved pipe section 43 is arranged between the connecting pipe section 41 and the inclined pipe section 42 . As a result, when the pressure release device 30 is opened and the carbon dioxide gas G is released from the pressure release device 30 to the release pipe 40, the carbon dioxide gas G passes through the connecting pipe section 41, the curved pipe section 43, and then tilts. It is discharged from the pipe section 42 into the outside atmosphere.

As shown in FIG. 2, the connecting pipe section 41 is connected to the pressure release section 30r of the pressure release device 30. In this embodiment, the connecting pipe portion 41 extends from the pressure release portion 30r in a horizontal direction intersecting the vertical direction Dv, but the connecting pipe portion 41 does not extend directly upward from the pressure release portion 30r, for example. It's okay.

As shown in FIG. 4, the curved pipe section 43 is provided between the connecting pipe section 41 and the inclined pipe section 42. The curved pipe section 43 is formed between the connecting pipe section 41 and the inclined pipe section 42 . The curved pipe portion 43 is curved with a curvature less than or equal to a predetermined value. When carbon dioxide gas G is released from the pressure release device 30 into the release pipe 40 , the carbon dioxide gas G flows from the connecting pipe section 41 to the curved pipe section 43 to the inclined pipe section 42 .

For example, if the discharge pipe 40 is not provided with the curved pipe part 43 and the connection part between the connecting pipe part 41 and the inclined pipe part 42 is bent without being curved, the pressure loss with respect to the flow of carbon dioxide gas G becomes larger. This may cause a local decrease in the pressure of carbon dioxide gas G, leading to the production of dry ice.
On the other hand, as in the present embodiment, the curved pipe part 43 is provided between the connecting pipe part 41 and the inclined pipe part 42, and the curvature of the curved pipe part 43 is made as small as possible. Pressure loss against carbon gas G is suppressed, and dry ice generation is suppressed.

The inclined pipe part 42 is inclined with respect to both the vertical direction Dv and the horizontal direction Dh perpendicular to the vertical direction Dv, and extends obliquely upward from the connecting pipe part 41. In this embodiment, the vertical direction Dv refers to the vertical direction when the hull 2 is not shaking. Further, in this specification, the horizontal direction Dh refers to the horizontal direction Dh in a state where the hull 2 is not shaking.

A tip opening 42h that opens obliquely upward is formed at the tip 42t of the inclined tube portion 42 of the discharge tube 40. When the pressure release device 30 is in the open state, carbon dioxide gas G is released from the tip opening 42h. The release direction Ds of carbon dioxide gas G from the inclined tube section 42 through the tip opening 42h is the extending direction De of the inclined tube section 42. That is, the release direction Ds of the carbon dioxide gas G in the release pipe 40 is inclined upward with respect to the horizontal direction Dh.

In such a liquefied carbon dioxide storage facility 10, the pressure release device 30 is in a closed state during normal times when the pressure of the gas phase in the tank 11 is less than a preset pressure. In this state, the pipe 31 and the discharge pipe 40 are cut off by the pressure release device 30.
When the pressure of the gas phase within the tank 11 reaches a preset set pressure for some reason, the pressure release device 30 is brought into an open state, and the pipe 31 and the discharge pipe 40 are communicated with each other. As a result, the gaseous carbon dioxide gas G in the tank 11 is released from the pipe 31 to the release pipe 40 via the pressure release device 30. The carbon dioxide gas G released from the pressure release device 30 into the release pipe 40 passes through the connecting pipe part 41 and the curved pipe part 43, and is released into the outside atmosphere from the inclined pipe part 42.

FIG. 5 is a diagram schematically showing a movement trajectory of carbon dioxide gas when carbon dioxide gas is released from a discharge pipe of a ship according to an embodiment of the present disclosure.
As shown in FIG. 5, since the release direction Ds of the carbon dioxide gas G in the release pipe 40 is inclined upward with respect to the horizontal direction Dh, the carbon dioxide gas G released from the release pipe 40 has a parabolic shape. After rising diagonally upward through the atmosphere, it descends diagonally downward through the atmosphere. The carbon dioxide gas G released from the release pipe 40 descends diagonally downward, so that when viewed from the vertical direction Dv, the carbon dioxide gas G reaches the sea surface (or the land surface if released toward land). ), it diffuses more widely in the emission direction Ds.

The height H from the discharge pipe 40 to the highest reaching position P1 of the carbon dioxide gas G discharged diagonally upward, and the height H from the discharge pipe 40 to the position P2 where the carbon dioxide gas G descends diagonally downward in the atmosphere and reaches the sea surface (land surface). For example, the reach distance D is determined by the inclination angle θ of the release direction Ds of the carbon dioxide gas G in the release pipe 40 with respect to the horizontal direction Dh, the set pressure when the pressure release device 30 switches from the closed state to the open state, and the set pressure of the release pipe 40. It varies depending on various conditions such as the opening diameter of the tip opening 42h, wind speed, navigation speed of the ship 1, temperature, and atmospheric pressure. For example, depending on the conditions, the maximum height H of the carbon dioxide gas G released from the release pipe 40 may be several hundred meters or more.

Furthermore, when carbon dioxide gas G is released in the horizontal direction Dh, if there is another ship, offshore floating equipment, land equipment, etc. on the side of the pressure release device 30 in the horizontal direction Dh, the released carbon dioxide gas G As a result, the concentration of carbon dioxide in the atmosphere may locally increase.

Therefore, when the carbon dioxide gas G released diagonally upward from the discharge pipe 40 descends diagonally downward, the discharge pipe is It is preferable to set an inclination angle θ of the release direction Ds of the carbon dioxide gas G at 40 with respect to the horizontal direction Dh. The inclination angle θ of the release direction Ds of the carbon dioxide gas G with respect to the horizontal direction Dh can be, for example, 15° or more and 75° or less. The inclination angle θ of the discharge direction Ds with respect to the horizontal direction Dh may be, for example, 30° or more and 60° or less.

Further, in this embodiment, the ship 1 is equipped with the liquefied carbon dioxide storage facility 10. In this case, the release direction Ds of the carbon dioxide gas G from the inclined pipe portion 42 of the release pipe 40 is in a direction intersecting the bow and stern direction Da (for example, in the transverse direction) when viewed from the vertical direction Dv. It is preferable to set
For example, when the release direction Ds of the carbon dioxide gas G is directed toward the bow 2a side in the bow and stern direction Da, when the carbon dioxide gas G is released obliquely upward from the release pipe 40 of the vessel 1 during navigation, the released dioxide There is a possibility that the ship 1, which has continued to navigate after being released, may approach (enter) the carbon gas G that has descended through the atmosphere in a parabolic manner.
Furthermore, when the release direction Ds of the carbon dioxide gas G is directed toward the bow 2a side in the bow-stern direction Da, the carbon dioxide gas G released from the release pipe 40 may collide with the upper structure 7.
Therefore, as shown in FIG. 2, the release direction Ds of the carbon dioxide gas G from the inclined pipe portion 42 of the release pipe 40 is determined by, for example, the ship width connecting the gunwale side 3A and the gunwale side 3B when viewed from the vertical direction Dv. It may be set to face one side in the direction Dw. Furthermore, in order to avoid releasing carbon dioxide gas G to the land side when the ship 1 is docked at a port or the like, the release direction Ds of carbon dioxide gas G from the inclined pipe portion 42 of the release pipe 40 is set to The orientation of the inclined pipe portion 42 may be adjustable (changed) so that it faces toward the ocean in the width direction Dw.

(effect)
In the liquefied carbon dioxide storage facility 10 and the ship 1 of the embodiments described above, the discharge direction Ds of the carbon dioxide gas G in the discharge pipe 40 is inclined upward with respect to the horizontal direction Dh. Thereby, the carbon dioxide gas G released from the pressure release device 30 can be prevented from falling down and can be diffused in a direction away from the pressure release device 30. Furthermore, it is also possible to prevent the carbon dioxide concentration from becoming locally high at a position on the side of the pressure release device 30, as in the case where the carbon dioxide gas G is released in the horizontal direction Dh. Therefore, when the carbon dioxide gas G is discharged from the tank 11, it is possible to prevent the carbon dioxide concentration from becoming locally high.

Further, in the above embodiment, by setting the inclination angle of the release direction Ds with respect to the horizontal direction Dh to be 15° or more and 75° or less, the carbon dioxide gas G released from the pressure release device 30 can be locally rained down. It is well diffused in the direction away from the pressure release device 30 while suppressing the pressure from coming down.

Further, in the above embodiment, by setting the inclination angle of the release direction Ds with respect to the horizontal direction Dh to be 30° or more and 60° or less, the carbon dioxide gas G released from the pressure release device 30 can be locally rained down. It is possible to better diffuse the air in the direction away from the pressure release device 30 while suppressing the air from coming down.

Furthermore, in the above embodiment, the discharge pipe 40 includes a connecting pipe section 41 and an inclined pipe section 42. Thereby, the carbon dioxide gas G is released from the pressure release device 30, through the connecting pipe part 41, and from the inclined pipe part 42 that extends upwardly with respect to the horizontal direction Dh. Thereby, the carbon dioxide gas G released from the pressure release device 30 can be diffused in the direction away from the pressure release device 30 while suppressing the carbon dioxide gas G from falling down like rain.

Furthermore, in the embodiment described above, the curved pipe part 43 is provided between the connecting pipe part 41 and the inclined pipe part 42. Thereby, the carbon dioxide gas G can be released from the connecting pipe part 41 to the inclined pipe part 42 via the curved pipe part 43 while suppressing the pressure drop of the carbon dioxide gas G. Therefore, generation of dry ice within the discharge pipe 40 is suppressed.

(Other embodiments)
Although the embodiment of the present disclosure has been described above in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and includes design changes within the scope of the gist of the present disclosure. .
In addition, in the said embodiment, although the structure of the liquefied carbon dioxide storage facility 10 was shown, the structure of each part can be changed suitably.
Further, in the embodiment described above, the above configuration is shown as the hull 2 of the ship 1, but the configuration of each part of the hull 2 and the like of the ship 1 can be changed as appropriate.

Further, in the above embodiment, the liquefied carbon dioxide storage facility 10 is provided in the ship 1, but the liquefied carbon dioxide storage facility 10 may be provided in the floating body of offshore floating equipment, a liquefied gas storage facility on land, etc. Good too. When the liquefied carbon dioxide storage facility 10 is installed in a liquefied gas storage facility on land, the release direction Ds of the carbon dioxide gas G released from the release pipe 40 is directed toward the ocean side rather than toward the land side where other buildings, etc. are located. is preferable.

<Additional notes>
The liquefied carbon dioxide storage facility 10 and the ship 1 described in the embodiment are understood as follows, for example.

(1) The liquefied carbon dioxide storage facility 10 according to the first aspect includes a tank 11 capable of storing liquefied carbon dioxide L, and a pressure release device provided in the tank 11 and capable of releasing the pressure inside the tank 11. 30, and a discharge pipe 40 extending from the pressure release device 30 and discharging carbon dioxide gas G from inside the tank 11 to the outside, wherein the discharge direction Ds of the carbon dioxide gas G in the discharge pipe 40 is horizontal. It is inclined upward with respect to the direction Dh.

In this liquefied carbon dioxide storage facility 10, when the pressure inside the tank 11 storing liquefied carbon dioxide L increases, the pressure inside the tank 11 is released by the pressure release device 30. Carbon dioxide gas G in the tank 11 is released from the pressure release device 30 to the outside through the release pipe 40. Since the release direction Ds of the carbon dioxide gas G in the release pipe 40 is inclined upward with respect to the horizontal direction Dh, the carbon dioxide gas G released from the pressure release device 30 can be seen falling down like rain. and diffused away from the pressure relief device 30. Furthermore, it is also possible to prevent the carbon dioxide concentration from becoming locally high at a position on the side of the pressure release device 30, as in the case where the carbon dioxide gas G is released in the horizontal direction Dh. Therefore, when the carbon dioxide gas G is discharged from the tank 11, it is possible to prevent the carbon dioxide concentration from becoming locally high.

(2) The liquefied carbon dioxide storage facility 10 according to the second aspect is the liquefied carbon dioxide storage facility 10 of (1), in which the inclination angle of the discharge direction Ds with respect to the horizontal direction Dh is 15° or more and 75° or less. It is.

As a result, by setting the inclination angle of the release direction Ds with respect to the horizontal direction Dh to be 15° or more and 75° or less, the carbon dioxide gas G released from the pressure release device 30 can be locally rained down. It is well diffused in the direction away from the pressure release device 30 while suppressing the amount of water.

(3) The liquefied carbon dioxide storage facility 10 according to the third aspect is the liquefied carbon dioxide storage facility 10 of (2), wherein the inclination angle of the discharge direction Ds with respect to the horizontal direction Dh is 30° or more and 60° or less. It is.

As a result, by setting the inclination angle of the release direction Ds with respect to the horizontal direction Dh to be 30° or more and 60° or less, the carbon dioxide gas G released from the pressure release device 30 can be locally rained down. It is possible to better diffuse the air in the direction away from the pressure release device 30 while suppressing the air flow.

(4) The liquefied carbon dioxide storage facility 10 according to the fourth aspect is the liquefied carbon dioxide storage facility 10 according to any one of (1) to (3), in which the discharge pipe 40 is connected to the pressure release device 30. It has a connecting pipe part 41 connected to and extending from the pressure release device 30, and an inclined pipe part 42 extending upwardly from the connecting pipe part 41 with respect to the horizontal direction Dh.

Thereby, the carbon dioxide gas G is released from the pressure release device 30 through the connecting pipe part 41 and from the inclined pipe part 42 that extends upwardly with respect to the horizontal direction Dh. Thereby, the carbon dioxide gas G released from the pressure release device 30 can be diffused in the direction away from the pressure release device 30 while suppressing the carbon dioxide gas G from falling down like rain.

(5) The liquefied carbon dioxide storage facility 10 according to the fifth aspect is the liquefied carbon dioxide storage facility 10 of (4), in which the discharge pipe 40 is connected to the connecting pipe section 41 and the inclined pipe section 42. It further includes a curved pipe section 43 that is provided between the two and curved with a curvature equal to or less than a predetermined value.

Thereby, the carbon dioxide gas G can be made to flow from the connecting pipe part 41 to the inclined pipe part 42 via the curved pipe part 43 while suppressing the pressure drop of the carbon dioxide gas G. Therefore, generation of dry ice within the discharge pipe 40 is suppressed.

(6) The ship 1 according to the sixth aspect includes the ship body 2 and the liquefied carbon dioxide storage facility 10 according to any one of (1) to (5).

Thereby, it is possible to provide a ship 1 equipped with a liquefied carbon dioxide storage facility 10 that can suppress a local increase in carbon dioxide concentration when discharging carbon dioxide gas G from inside the tank 11. .

According to the liquefied carbon dioxide storage equipment and ship of the above aspects, when carbon dioxide gas is discharged from the tank, it is possible to suppress the carbon dioxide concentration from increasing locally.

1... Vessel 2... Hull 2a... Bow 2b...

Stern

3A, 3B... Broadside 4... Bottom 5... Upper deck 7... Upper structure 8... Cargo loading compartment 10... Liquefied carbon dioxide storage facility 11... Tank 12... Cylindrical part 13... End plate part 15...Loading piping 16...Discharge piping 17...Pump 30...Pressure release device 30r...Pressure release part 31...Piping 40...Discharge pipe 41...Connecting pipe part 42...Slanted pipe part 42h...Tip opening 42t...Tip 43... Curved tube section D...reaching distance Da...fore/stern direction De...stretching direction Dh...horizontal direction Ds...release direction Dv...vertical direction Dw...width direction Dx...longitudinal direction G...carbon dioxide gas L...liquefied carbon dioxide P1...maximum Arrived position P2...Position H...Height θ...Inclination angle

Claims

A tank capable of storing liquefied carbon dioxide;
a pressure release device provided in the tank and capable of releasing pressure within the tank;
a discharge pipe extending from the pressure release device and discharging carbon dioxide gas from within the tank to the outside;
The liquefied carbon dioxide storage facility, wherein the direction of release of the carbon dioxide gas in the release pipe is inclined upward with respect to the horizontal direction.
The liquefied carbon dioxide storage facility according to claim 1, wherein the inclination angle of the discharge direction with respect to the horizontal direction is 15° or more and 75° or less.
The liquefied carbon dioxide storage facility according to claim 2, wherein the inclination angle of the discharge direction with respect to the horizontal direction is 30° or more and 60° or less.
The discharge tube is
a connecting pipe portion connected to and extending from the pressure relief device;
The liquefied carbon dioxide storage facility according to claim 1 or 2, further comprising: an inclined pipe section extending upwardly from the connecting pipe section with respect to the horizontal direction.
The liquefied carbon dioxide storage facility according to claim 4, wherein the discharge pipe further includes a curved pipe section that is provided between the connecting pipe section and the inclined pipe section and is curved with a curvature equal to or less than a predetermined value.
The hull and
A ship comprising the liquefied carbon dioxide storage facility according to claim 1 or 2.