A SUBSEA HEAT EXCHANGER
    1.
    发明公开

    公开(公告)号:EP3382312A1

    公开(公告)日:2018-10-03

    申请号:EP17164210.1

    申请日:2017-03-31

    Applicant: ABB Schweiz AG

    CPC classification number: F28D7/106 F28D1/022 F28D7/10

    Abstract: The invention relates to a subsea heat exchanger (1) comprising a first (2) and a second (3) chamber, the first chamber (2) comprising a fluid inlet (4) and the second chamber (3) comprising a fluid outlet (5), wherein the first chamber (2) and the second chamber (3) are connected with at least one outer pipe (6). The heat exchanger (1) comprises an inner pipe (7) surrounded by the outer pipe (6). A first end (8) of the inner pipe (7) extends into the first chamber (2) and is connected to a first connection point (9a) in the first chamber (2), a second end (10) of the inner pipe (7) extends into the second chamber (3) and is connected to a second connecting point (9b) in the second chamber (3). Between the outer pipe (6) and the inner pipe (7) is a gap (12) open to the first (2) and the second chamber (3) providing a fluid communication between the first chamber (2) and the second chamber (3). The first (8) and the second ends (10) of the inner pipe (7) are open providing a flow path for surrounding fluid (13) through the inner pipe (7).The invention relates also to a subsea assembly comprising the subsea heat exchanger (1) and to a use of a subsea heat exchanger (1).

    A COOLING ARRANGEMENT OF A SUBSEA INSTALLATION

    公开(公告)号:EP3404198A1

    公开(公告)日:2018-11-21

    申请号:EP17171982.6

    申请日:2017-05-19

    Applicant: ABB Schweiz AG

    Abstract: The invention relates to a cooling arrangement (1) of a subsea installation (2), wherein the subsea installation (2) comprises a tank (3) and a pressure compensator (4). The tank (3) comprises an insulation fluid (5) or other fluid. The pressure compensator (1) is in fluid communication with the tank (3), the pressure compensator (4) is configured to compensate volume variations of the insulation fluid (5) or the other fluid by performing an expansive and a contracting movement. The tank (3) and the pressure compensator (4) are connected with a first (6) and a second (7) fluid flow connections, and the first fluid flow connection (6) provides a flow path from the tank (3) to the pressure compensator (4) and the second fluid flow connection (7) provides a flow path from the pressure compensator (4) to the tank (3). The invention relates also to a use of the cooling arrangement.

    A SUBSEA INSTALLATION
    4.
    发明公开

    公开(公告)号:EP3883355A1

    公开(公告)日:2021-09-22

    申请号:EP20163289.0

    申请日:2020-03-16

    Applicant: ABB Schweiz AG

    Abstract: The subsea installation comprises an enclosure filled with a dielectric fluid, an electric component positioned within the enclosure, and a cooling arrangement (100) for intensifying the cooling of the dielectric fluid within the enclosure. The cooling arrangement comprises an impeller (110) fitted within the enclosure and a motor (130) fitted outside the enclosure, the impeller being connected to the motor via a contactless coupling (120, 140) based on magnets positioned on opposite sides of a wall (23) of the enclosure, whereby the wall of the enclosure remains unbroken.

    ARRANGEMENT FOR OVERVOLTAGE PROTECTION OF SUBSEA ELECTRICAL APPARATUS

    公开(公告)号:EP3934043A1

    公开(公告)日:2022-01-05

    申请号:EP20183053.6

    申请日:2020-06-30

    Applicant: ABB Schweiz AG

    Abstract: An arrangement (1) for an overvoltage protection of a subsea electrical apparatus and a method for operating it. The arrangement (1) comprises a tank (3) submersible below a water surface level, an electrical apparatus accommodated in the tank (3), and a surge arrester arrangement (6) accommodated in the tank (3) and coupled to a power supply of the electrical apparatus in the tank (3) for providing the overvoltage protection of the electrical apparatus. The arrangement (1) further comprises a controllable grounding switch (7) for connecting the surge arrester arrangement (6) to a ground point (GP) in response to a control of the grounding switch (7) to a closed state and for disconnecting the surge arrester arrangement (6) from the ground point (GP) in response to a control of the grounding switch (7) to an open state.

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