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公开(公告)号：US20240344664A1
公开(公告)日：2024-10-17
申请号：US18682207
申请日：2022-08-09
发明人： Shuichiro HONDA , Tetsuji KASATANI , Hayato IKEDA , Mitsutaka IWAMI , Asaki SUZUKI , Koichiro YAMANOUCHI , Yuya YAMANE , Yuichi EMI , Tomonori TAKASE , Akihiko INOMATA
IPC分类号： F17C9/00
CPC分类号： F17C9/00 , F17C2201/0104 , F17C2201/032 , F17C2201/052 , F17C2203/0333 , F17C2203/0391 , F17C2205/0323 , F17C2221/012 , F17C2223/0153 , F17C2223/047 , F17C2227/0142 , F17C2227/0178 , F17C2227/044 , F17C2250/0439 , F17C2250/0491
摘要： A purge container (1) has a container body (21) having an interior space (20) for accommodating a submersible pump (2), an upper lid (23) configured to cover an upper opening of the container body (21), a lower lid (24) configured to cover a lower opening of the container body (21), and a purge-gas inlet port (27) and a purge-gas outlet port (28) communicating with the interior space (20) of the container main body (21). The container body (21) is secured to an upper portion of a pump column (3) in which the submersible pump (2) is to be installed.
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公开(公告)号：US20240360832A1
公开(公告)日：2024-10-31
申请号：US18682528
申请日：2022-08-09
申请人： EBARA CORPORATION
发明人： Shuichiro HONDA , Tetsuji KASATANI , Hayato IKEDA , Mitsutaka IWAMI , Kei WATAJI , Hyuga KIKUCHI
摘要： A purge apparatus is provided. The purge apparatus is capable of preventing air from being entrained when a submersible pump is moved into a pump column, and capable of warming the submersible pump when the submersible pump is removed from the pump column to thereby prevent component of the air from being liquefied, thus preventing the liquefied gas from being emitted in the atmosphere. The purge apparatus includes a hermetic purge container configured to accommodate the submersible pump therein; a vacuum line coupled to the hermetic purge container and coupled to a vacuum source; a purge-gas supply line coupled to the hermetic purge container and coupled to a purge-gas supply source; and a purge-gas supply valve mounted to the purge-gas supply line.
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公开(公告)号：US20240344529A1
公开(公告)日：2024-10-17
申请号：US18681592
申请日：2022-08-09
申请人： EBARA CORPORATION
CPC分类号： F04D29/607 , F04B15/08 , F04D13/08 , F04D29/604 , F04B2015/0822
摘要： An elevating apparatus that can eliminate a need for a permanently installed large hoist is provided. The elevating apparatus is used to elevate and lower a submersible pump in a pump column. The submersible pump is used for delivering liquefied gas. The elevating apparatus includes a cable including multiple split cables and multiple coupling links configured to detachably couple the multiple split cables to each other; and a take-up device coupled to the cable.
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公开(公告)号：US20240360745A1
公开(公告)日：2024-10-31
申请号：US18681950
申请日：2022-08-09
申请人： EBARA CORPORATION
发明人： Shuichiro HONDA , Tetsuji KASATANI , Hayato IKEDA , Mitsutaka IWAMI , Kei WATAJI , Hyuga KIKUCHI
CPC分类号： E21B43/128 , E21B17/0285 , H02G9/00 , H02G11/02
摘要： The present invention relates to a power feeding apparatus and a power feeding method for supplying electric power to a submersible pump for delivering liquefied gas, such as liquefied ammonia, liquefied natural gas (LNG), or liquid hydrogen. The power feeding apparatus includes a first electrical contact secured to the submersible pump and electrically coupled to an electric motor of the submersible pump; a second electrical contact configured to contact the first electrical contact; and a power cable electrically coupled to the second electrical contact. At least a part of the second electrical contact is located in a pump column in which the submersible pump is arranged.
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5.发明公开公开(公告)号：US20240353068A1
公开(公告)日：2024-10-24
申请号：US18683004
申请日：2022-08-09
申请人： EBARA CORPORATION
IPC分类号： F17C9/00
CPC分类号： F17C9/00 , F17C2201/0104 , F17C2201/032 , F17C2201/052 , F17C2205/0323 , F17C2221/012 , F17C2223/0153 , F17C2223/046 , F17C2227/0142 , F17C2227/0178 , F17C2227/044 , F17C2250/0439 , F17C2250/0491
摘要： An integrally-transportable purge container capable of preventing entry of air when a submersible pump is carried into a pump column, and capable of warming the submersible pump when it is removed from the pump column to prevent components of the air from being liquefied is provided. The integrally-transportable purge container includes: a container body having an interior space for accommodating a submersible pump therein; an upper lid configured to cover an upper opening of the container body; a lower lid configured to cover a lower opening of the container body; and a purge-gas inlet port and a purge-gas outlet port communicating with the interior space of the container body. The integrally-transportable purge container is detachably coupled to an upper portion of a pump column in which the submersible pump is to be installed. The integrally-transportable purge container is configured to be transportable together with the submersible pump.
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6.发明公开公开(公告)号：US20240011492A1
公开(公告)日：2024-01-11
申请号：US18253610
申请日：2021-08-27
申请人： EBARA CORPORATION
CPC分类号： F04D7/02 , F04D13/086 , F04D29/445
摘要： The present invention relates to a technique of preventing idling rotation of a submersible pump used for delivering liquefied gas, such as liquefied ammonia, liquid hydrogen, liquid nitrogen, liquefied natural gas, liquefied ethylene gas, or liquefied petroleum gas. A fluid-path switching apparatus (5) includes: a flow-passage structure (45) having a first flow passage (41), a second flow passage (42), and a third flow passage (43); and a valve element (47) for allowing the third flow passage (43) to selectively communicate with the first flow passage (41) or the second flow passage (42). The first flow passage (41) communicates with a discharge outlet (1b) of the submersible pump (1), the second flow passage (42) communicates with an interior of the suction vessel (2), and the third flow passage (43) communicates with a discharge port (8) of the suction vessel (2).
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