WO2023106290A1 - Procédé de refroidissement d'un récipient de liquide et installation de stockage - Google Patents

Procédé de refroidissement d'un récipient de liquide et installation de stockage Download PDF

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Publication number
WO2023106290A1
WO2023106290A1 PCT/JP2022/044910 JP2022044910W WO2023106290A1 WO 2023106290 A1 WO2023106290 A1 WO 2023106290A1 JP 2022044910 W JP2022044910 W JP 2022044910W WO 2023106290 A1 WO2023106290 A1 WO 2023106290A1
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WO
WIPO (PCT)
Prior art keywords
liquid container
supply
liquid
cryogenic
cryogenic liquid
Prior art date
Application number
PCT/JP2022/044910
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English (en)
Japanese (ja)
Inventor
裕也 山根
一輝 北田
勇希 八村
直也 荻山
誠二 山下
大輔 笠井
Original Assignee
川崎重工業株式会社
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by 川崎重工業株式会社 filed Critical 川崎重工業株式会社
Priority to AU2022407768A priority Critical patent/AU2022407768A1/en
Priority to KR1020247017656A priority patent/KR20240091063A/ko
Publication of WO2023106290A1 publication Critical patent/WO2023106290A1/fr

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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
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment

Definitions

  • the present disclosure relates to a liquid container cool-down method and storage facility.
  • Patent Document 1 discloses a cool-down method for cooling a cryogenic liquid container by spraying the cryogenic liquid from a spray pipe in the cryogenic liquid container.
  • the stored cryogenic liquid When cooling down a liquid container that stores cryogenic liquid, the stored cryogenic liquid is sprayed inside the liquid container. For a while after the cryogenic liquid is sprayed, the cryogenic liquid evaporates and increases in volume, increasing the pressure in the liquid container. However, if the cryogenic liquid is continued to be sprayed, at some point the volume of the gas in the liquid container will start to decrease, the pressure in the liquid container will decrease, and there is a risk that the pressure in the liquid container will eventually become negative. be.
  • an object of the present disclosure is to provide a cool-down method and storage equipment for cooling a liquid container while suppressing pressure drop in the liquid container.
  • a method is a method for cooling down a liquid container that stores a cryogenic liquid, comprising: sprinkling and supplying the cryogenic liquid into the liquid container; and a non-sparging supply of the cryogenic liquid, initiating the non-sparging supply or the amount of the cryogenic liquid supplied in the non-sparging supply when the temperature of the liquid container falls below a predetermined threshold.
  • a storage facility includes a liquid container that stores a cryogenic liquid, a distribution supply pipe that supplies the cryogenic liquid while dispersing it in the liquid container, and a cryogenic liquid in the liquid container.
  • a non-sparging supply pipe supplying a cryogenic liquid; and a cool-down program for cooling the liquid container by combining the supply of the cryogenic liquid from the sprinkling supply pipe and the supply of the cryogenic liquid from the non-spraying supply pipe.
  • FIG. 1 is a configuration diagram of a storage facility.
  • FIG. 2 is a flow diagram of the cooldown program.
  • FIG. 1 is a configuration diagram of a storage facility 100.
  • the storage facility 100 includes a liquid container 10 , a sprinkling supply line 20 , a non-spraying supply line 30 , a vent line 40 and a controller 50 . These constituent elements will be described in order below.
  • the liquid container 10 is a container for storing cryogenic liquid.
  • Cryogenic liquids include liquid hydrogen, liquid helium, and the like.
  • the liquid container 10 of this embodiment is spherical.
  • the liquid container 10 may be of a flat-bottomed cylindrical type in which the lower part is a cylinder extending vertically and the upper part is a panel, or it may be a pillow type in which both sides of the cylinder extending in the horizontal direction are paneled.
  • the liquid container 10 may be installed on the ground, or may be mounted on a moving object such as a ship.
  • the liquid container 10 includes a metal inner tank 11 and a metal outer tank 12 that covers the inner tank 11 from the outside.
  • the inner tank 11 and the outer tank 12 are made of SUS304L, for example.
  • the material of the inner tank 11 and the outer tank 12 is not limited to this.
  • the space between the inner tank 11 and the outer tank 12 is, for example, a vacuum and is filled with a heat insulating material such as perlite.
  • the liquid container 10 is provided with a plurality of temperature sensors 13, 14, and 15 at different height positions. Each temperature sensor 13, 14, 15 measures the temperature of the liquid container 10 (inner tank 11) at the corresponding height position. Although three temperature sensors 13, 14, and 15 are provided in the liquid container 10 in this embodiment, the number of temperature sensors provided in the liquid container 10 is not limited. Furthermore, the liquid container 10 is also provided with a pressure sensor 16 that measures the pressure inside the liquid container 10 .
  • the sprinkling supply pipe 20 is a pipe for "spraying and supplying" the cryogenic liquid while spraying it into the liquid container 10 .
  • spray supply is a method of supplying the cryogenic liquid in the form of particles into the liquid container 10 .
  • the spray supply pipe 20 is connected to a common pipe 60 located outside the liquid container 10, from which the cryogenic liquid is supplied.
  • the sprinkling supply pipe 20 extends from the common pipe 60 , penetrates the liquid container 10 in the radial direction, and reaches the top inside the liquid container 10 .
  • the spraying supply pipe 20 includes a plurality of spraying supply ports 21 . Each sprinkling supply port 21 is positioned at the upper portion within the liquid container 10 .
  • the cryogenic liquid supplied from the common pipe 60 to the sprayed supply pipe 20 is sprayed into the liquid container 10 from each sprayed supply port 21 (sprayed supply is performed).
  • a spray supply valve 22 is provided in the spray supply pipe 20 . By opening the spraying supply valve 22, the spraying supply is started. By reducing the opening of the spraying supply valve 22, the amount of cryogenic liquid supplied in the spraying supply is reduced. Spray supply stops.
  • the non-spraying supply pipe 30 is a pipe that performs "non-spraying supply” while supplying (without spraying) the cryogenic liquid into the liquid container 10 while spouting or discharging it.
  • non-dispersed feeding is a method of feeding the cryogenic liquid into the liquid container 10 as a series of continuous bodies.
  • the non-spray supply line 30, like the sprinkling supply line 20, is connected to a common line 60 from which cryogenic liquid is supplied. That is, the common line 60 supplies cryogenic liquid to both the sprinkling supply line 20 and the non-sparging supply line 30 .
  • the non-spraying supply pipe 30 extends from the common pipe 60 , radially penetrates the liquid container 10 and reaches the lower portion within the liquid container 10 .
  • the non-spraying supply pipe 30 includes a non-spraying supply port 31 .
  • the non-dispersing supply port 31 is located at the bottom inside the liquid container 10 .
  • the cryogenic liquid supplied from the common pipe 60 to the non-spraying supply pipe 30 is supplied from the non-spraying supply port 31 while being ejected or released into the liquid container 10 (non-spraying supply is performed).
  • a non-spraying supply valve 32 is provided on the non-spraying supply pipe 30 . By opening the non-spraying supply valve 32, non-spraying supply is started, and by reducing the opening degree of the non-spraying supply valve 32, the amount of cryogenic liquid supplied in the non-spraying supply is reduced, and the non-spraying supply valve 32 is closed. Full closure stops non-spray feeding.
  • the non-spraying supply port 31 of this embodiment supplies the cryogenic liquid from the inner surface of the liquid container 10 toward the central portion of the liquid container 10 . That is, the cryogenic liquid is supplied so as to flow out from the non-dispersion supply port 31 .
  • the non-spraying supply pipe 30 is arranged to pass through the inside of the liquid container 10, and the cryogenic liquid is supplied from the non-spraying supply port 31 arranged near the inner surface of the liquid container 10 toward the inner surface of the liquid container 10. may Also, the non-dispersion supply port 31 does not have to be positioned at the bottom inside the liquid container 10 .
  • the non-dispersion supply pipe 30 functions as a pipe for filling the liquid container 10 with the cryogenic liquid or carrying the cryogenic liquid from the liquid container 10 to the outside of the liquid container 10 .
  • the ventilation pipe 40 is a pipe for carrying out the boil-off gas generated by the vaporization of the cryogenic liquid inside the liquid container 10 to the outside of the liquid container 10 .
  • the vent pipe 40 includes an outlet 41 that opens upward within the liquid container 10 .
  • the boil-off gas in the liquid container 10 flows from the outlet 41 into the ventilation pipe 40 and is carried out of the liquid container 10 .
  • a ventilation pipe valve 42 is provided in the ventilation pipe 40 .
  • the control device 50 is a device that performs various controls.
  • the control device 50 has a processor, a volatile memory, a nonvolatile memory, an I/O interface, and the like.
  • Various programs including a cool-down program, which will be described later, and various data are stored in the nonvolatile memory of the control device 50, and the processor performs arithmetic processing using the volatile memory based on each program.
  • the control device 50 is electrically connected to the temperature sensors 13, 14, 15 provided on the liquid container 10, and receives measurement signals from the respective temperature sensors 13, 14, 15 to determine the temperature of the liquid container 10. can be obtained.
  • the control device 50 is also electrically connected to the pressure sensor 16 provided in the liquid container 10, and can acquire the pressure in the liquid container 10 by receiving a measurement signal from the pressure sensor 16. .
  • the control device 50 is electrically connected to the sprinkling supply valve 22, the non-spraying supply valve 32, and the ventilation piping valve 43, and by transmitting control signals to each valve 22, 32, 43, each The opening of the valves 22, 32, 43 can be controlled.
  • the control device 50 may open and close the valves 22, 32 and 43 using a motor, or may open and close the valves 22, 32 and 43 using air pressure or hydraulic pressure.
  • a circuit, unit, or means is hardware that performs or is programmed to perform the recited functions.
  • the hardware may be the hardware disclosed herein, or other known hardware programmed or configured to perform the recited functions.
  • a circuit, means or unit is a combination of hardware and software where the hardware is a processor which is considered a type of circuit, the software being used to configure the hardware and/or the processor.
  • a cool-down program is a program for cooling the liquid container 10 .
  • the room temperature liquid container 10 is filled with cryogenic liquid from the non-spraying supply port 31, for example, the area around the non-spraying supply port 31 is locally cooled.
  • the liquid container 10 may be damaged due to an increase in the temperature difference between the two. For this reason, when the liquid container 10 at room temperature is filled with the cryogenic liquid, the liquid container 10 is first cooled down by slowly supplying the cryogenic liquid to the entire inside of the liquid container 10 to cool it down.
  • FIG. 2 is a flow chart of the cooldown program.
  • the controller 50 opens the sprinkling supply valve 22 to perform sprinkling supply and closes the non-spraying supply valve 32 (step S1). That is, the cryogenic liquid is sprayed from the spraying supply ports 21 of the spraying supply pipe 20 , so that the cryogenic liquid is sprayed toward the inner space of the liquid container 10 from the upper part of the liquid container 10 .
  • the gas inside the liquid container 10 is cooled, and the cooled gas uniformly cools the entire liquid container 10 . That is, the liquid container 10 is indirectly cooled by the cryogenic liquid via the internal gas.
  • the cryogenic liquid dispersed in the liquid container 10 is vaporized by performing the spraying supply, and boil-off gas is generated in the liquid container 10 .
  • the pressure inside the liquid container 10 rises due to the generation of the boil-off gas.
  • part of the boil-off gas generated within the liquid container 10 is released to the outside of the liquid container 10 via the ventilation pipe 40 .
  • the amount of boil-off gas released can be adjusted by controlling the opening of the ventilation pipe valve 42 .
  • the opening and closing of the ventilation pipe valve 42 is controlled based on the pressure inside the liquid container 10 obtained from the pressure sensor 16 .
  • the vent pipe valve 42 may be closed during cool-down so that the boil-off gas is not discharged to the outside of the liquid container 10 .
  • the control device 50 acquires the temperature of the liquid container 10 (step S2).
  • the control device 50 acquires the temperature of the liquid container 10 from the temperature sensors 13, 14, 15.
  • the temperature of the liquid container 10 in this embodiment means the temperature of the inner surface of the inner tank 11 of the liquid container 10 .
  • the control device 50 determines whether or not the temperature of the liquid container 10 obtained in step S2 is below a predetermined threshold (step S3).
  • a predetermined threshold As described above, when the cryogenic liquid is sprayed inside the liquid container 10 , the pressure inside the liquid container 10 increases unless the liquid is discharged to the outside through the vent pipe 40 . Therefore, the pressure of the liquid container 10 is adjusted by opening and closing the vent pipe valve 42 so that the maximum working pressure of the liquid container 10 is not exceeded.
  • the threshold value in step S3 is the temperature of the liquid container 10 immediately before the inside of the liquid container 10 becomes negative pressure. This threshold value may be determined based on the results of a cool-down test conducted in advance using the liquid container 10, or may be a value obtained by desk study or a value obtained by empirical rules. .
  • step S3 when the temperature of the liquid container 10 has not fallen below the threshold value (NO in step S3), that is, when there is no possibility that the inside of the liquid container 10 will become negative pressure, the process returns to step S2.
  • the control device 50 closes the spray supply valve 22. It is closed to stop the sprinkling supply, and the non-spraying supply valve 32 is opened to start the non-spraying supply (step S4).
  • step S4 by closing the spraying supply valve 22, the spraying of the cryogenic liquid from the top inside the liquid container 10 is stopped. As a result, the cooling of the gas in the liquid container 10 is suppressed, thereby suppressing the reduction in the volume of the gas in the liquid container 10 . As a result, a decrease in pressure inside the liquid container 10 can be suppressed. Furthermore, in step S4, by opening the non-spraying supply valve 32, the cryogenic liquid is supplied from the non-spraying supply pipe 30 to the liquid container 10, and the liquid container 10 is directly cooled. At this time, the cryogenic liquid supplied from the non-dispersion supply pipe 30 is vaporized to generate boil-off gas. As a result, the amount of gas in the liquid container 10 increases, and the pressure drop in the liquid container 10 can be suppressed.
  • the control device 50 determines whether or not the cooling down of the liquid container 10 has been completed (step S5). For example, the control device 50 determines that the cool-down is completed when the temperature of the liquid container 10 is equal to or lower than a predetermined cool-down completion temperature, and when the temperature of the liquid container 10 is higher than the cool-down completion temperature. It may be determined that the cooldown is not complete. Further, for example, the control device 50 controls the cooling when the cryogenic liquid supplied to the liquid container 10 starts to accumulate in the liquid container 10 without being vaporized and the liquid level of the cryogenic liquid becomes equal to or higher than a predetermined reference liquid level. It may be determined that cooling down is completed, and that cooling down is not completed when the liquid level of the cryogenic liquid is lower than the reference liquid level.
  • step S5 if the control device 50 determines that the cooldown has not been completed (NO in step S5), the process returns to step S5. On the other hand, if it is determined in step S5 that the cooldown has been completed (YES in step S5), the cooldown program ends.
  • the control device 50 determines that the cooldown has not been completed (NO in step S5), the process returns to step S5. On the other hand, if it is determined in step S5 that the cooldown has been completed (YES in step S5), the cooldown program ends.
  • the control device 50 starts filling the liquid container 10 with the cryogenic liquid.
  • Cryogenic liquid filling is provided by non-sparging supply line 30 or by both sparse supply line 20 and non-sparse supply line 30 .
  • the supply amount of the cryogenic liquid supplied from the non-spraying supply pipe 30 may increase the supply amount in step S4. That is, the amount of cryogenic liquid supplied to the liquid container 10 from the non-spraying supply pipe 30 can be increased after cooling down.
  • the non-spraying supply valve 32 is opened to start supplying the cryogenic liquid from the non-spraying supply pipe 30 (non-spraying supply). (See step S4).
  • the non-spraying supply valve 32 is opened to perform non-spraying supply in advance, and when the temperature of the liquid container 10 falls below the threshold (YES in step S3), non-spraying supply is performed.
  • the opening of the valve 32 may be increased to increase the cryogenic liquid supply in the non-spray supply.
  • the spray supply valve 22 was closed to stop the supply of the cryogenic liquid (spray supply) from the spray supply pipe 20 (step S4).
  • the opening of the sprinkling supply valve 22 may be decreased to reduce the supply amount of the cryogenic liquid in the sprinkling supply.
  • step S4 the sprinkling supply valve 22 is closed and the non-spraying supply valve 32 is opened at the same time. That is, in step S4, the non-spraying supply valve 32 may be opened (non-spraying supply may be started) after a predetermined time has elapsed since the sprinkling supply valve 22 was closed (spraying supply was stopped). The sprinkling supply valve 22 may be closed (spraying supply may be stopped) after a predetermined time has passed since the supply valve 32 was opened (non-spraying supply was started).
  • the liquid container 10 is cooled down by the control device 50 executing the cool down program.
  • the operator may manually cool down the liquid container 10 .
  • the method according to the above-described embodiment is a method for cooling down a liquid container that stores a cryogenic liquid, comprising: sprinkling and supplying the cryogenic liquid into the liquid container; and a non-sparging supply of cryogenic liquid, initiating said non-sparging supply or reducing the supply of said cryogenic liquid in said non-sparging supply when the temperature of said liquid container falls below a predetermined threshold. are increasing.
  • the liquid container is directly cooled by the cryogenic liquid by initiating a non-sparging supply or increasing the cryogenic liquid supply in the non-sparging supply. or will be directly cooled by more cryogenic liquid.
  • the liquid container since the liquid container is locally cooled, cooling of the gas in the liquid container as a whole is suppressed, and reduction in volume is suppressed.
  • the cryogenic liquid supplied by the non-sparging supply vaporizes and produces boil-off gas, thus increasing the amount of gas in the liquid container. As a result, a decrease in pressure inside the liquid container can be suppressed.
  • the cooling of the gas in the liquid container is suppressed.
  • a decrease in the volume of the gas within the liquid container is suppressed, and a decrease in pressure within the liquid container can be suppressed.
  • the cryogenic liquid is supplied from the upper part of the liquid container in the sprinkling supply, and the cryogenic liquid is supplied from the lower part of the liquid container in the non-spraying supply. are doing.
  • the cryogenic liquid in spray supply, the cryogenic liquid is supplied from the upper part of the liquid container, and if there is no possibility that the inside of the liquid container will become negative pressure, the entire liquid container is evenly distributed through the cooled gas. can be cooled to
  • the cryogenic liquid is supplied from the bottom of the liquid container, and if there is a risk that the inside of the liquid container will become negative pressure, the cryogenic liquid tends to stay at the bottom of the liquid container and the liquid The container is locally cooled. As a result, the gas in the liquid container as a whole is less likely to be cooled, and pressure drop in the liquid container can be suppressed.
  • the storage facility includes a liquid container for storing a cryogenic liquid, a spray supply pipe for supplying the cryogenic liquid while dispersing it in the liquid container, and the cryogenic liquid in the liquid container.
  • a non-sparging supply line that supplies liquid; and a cool-down program that combines the supply of the cryogenic liquid from the spray supply line and the supply of the cryogenic liquid from the non-sparging supply line to cool the liquid container. and in the cool-down program, when the temperature of the liquid container falls below a predetermined threshold, the cryogenic liquid is started to be supplied from the non-spray supply line or the cryogenic liquid is supplied from the non-spray supply line. and a controller for increasing the supply of liquid.
  • the liquid container when the temperature of the liquid container falls below a predetermined threshold, by initiating the cryogenic liquid supply from the non-sprayed supply or increasing the cryogenic liquid supply from the non-sprayed supply piping, The liquid container begins to be directly cooled by the cryogenic liquid, or becomes directly cooled by more cryogenic liquid. At this time, since the liquid container is locally cooled, cooling of the gas in the liquid container as a whole is suppressed, and reduction in volume is suppressed. Furthermore, the cryogenic liquid supplied from the non-sparging supply line vaporizes and produces boil-off gas, increasing the amount of gas in the liquid container. As a result, a decrease in pressure inside the liquid container can be suppressed.
  • liquid container 20 sprinkling supply pipe 30 non-spraying supply pipe 50 control device 100 storage facility

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)

Abstract

Un aspect de l'invention concerne un procédé de refroidissement d'un récipient de liquide stockant un liquide cryogénique. Le procédé combine une alimentation par pulvérisation pour alimenter en liquide cryogénique le récipient de liquide tout en pulvérisant le liquide cryogénique et une alimentation sans pulvérisation pour alimenter en liquide cryogénique le récipient de liquide, et commence l'alimentation de non-pulvérisation ou augmente l'alimentation du liquide cryogénique par alimentation de non-pulvérisation lorsque la température du récipient de liquide tombe au-dessous d'un seuil prédéfini.
PCT/JP2022/044910 2021-12-07 2022-12-06 Procédé de refroidissement d'un récipient de liquide et installation de stockage WO2023106290A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2022407768A AU2022407768A1 (en) 2021-12-07 2022-12-06 Method for cooling down liquid container and storage facility
KR1020247017656A KR20240091063A (ko) 2021-12-07 2022-12-06 액체 용기의 쿨다운 방법 및 저장 설비

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021198800A JP2023084555A (ja) 2021-12-07 2021-12-07 液体容器のクールダウン方法及び貯蔵設備
JP2021-198800 2021-12-07

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WO2023106290A1 true WO2023106290A1 (fr) 2023-06-15

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PCT/JP2022/044910 WO2023106290A1 (fr) 2021-12-07 2022-12-06 Procédé de refroidissement d'un récipient de liquide et installation de stockage

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JP (1) JP2023084555A (fr)
KR (1) KR20240091063A (fr)
AU (1) AU2022407768A1 (fr)
TW (1) TW202328615A (fr)
WO (1) WO2023106290A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09217897A (ja) * 1996-02-14 1997-08-19 Hitachi Ltd Ｓｆ６貯蔵供給装置、その貯蔵方法及び供給方法
JP2000266295A (ja) * 1999-03-17 2000-09-26 Ishikawajima Harima Heavy Ind Co Ltd 蒸発ガス量制御装置
JP2013019453A (ja) * 2011-07-11 2013-01-31 Nippon Sharyo Seizo Kaisha Ltd 低温液体容器の配管構造
WO2013146316A1 (fr) * 2012-03-30 2013-10-03 三菱重工業株式会社 Navire, dispositif de vaporisation de gaz liquéfié, procédé de contrôle et procédé d'amélioration correspondants
KR20170054008A (ko) * 2015-11-09 2017-05-17 정우호 식물 번식용 육묘지지장치

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5799606B2 (ja) 2011-06-22 2015-10-28 日産自動車株式会社 ロータの製造方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09217897A (ja) * 1996-02-14 1997-08-19 Hitachi Ltd Ｓｆ６貯蔵供給装置、その貯蔵方法及び供給方法
JP2000266295A (ja) * 1999-03-17 2000-09-26 Ishikawajima Harima Heavy Ind Co Ltd 蒸発ガス量制御装置
JP2013019453A (ja) * 2011-07-11 2013-01-31 Nippon Sharyo Seizo Kaisha Ltd 低温液体容器の配管構造
WO2013146316A1 (fr) * 2012-03-30 2013-10-03 三菱重工業株式会社 Navire, dispositif de vaporisation de gaz liquéfié, procédé de contrôle et procédé d'amélioration correspondants
KR20170054008A (ko) * 2015-11-09 2017-05-17 정우호 식물 번식용 육묘지지장치

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KR20240091063A (ko) 2024-06-21
AU2022407768A1 (en) 2024-06-13
TW202328615A (zh) 2023-07-16

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