SHELL-AND-TUBE HEAT EXCHANGER ASSEMBLY AND METHOD FORLIMITING A CORROSION RESPONSE OF TUBES THEREIN

    公开(公告)号:US20250012525A1

    公开(公告)日:2025-01-09

    申请号:US18753196

    申请日:2024-06-25

    Abstract: A shell-and-tube heat exchanger assembly including a first tube sheet, a second tube sheet, and a plenum, is disclosed. The first tube sheet is adapted to be secured to a shell of the shell-and-tube heat exchanger assembly. The first tube sheet includes a plurality of first holes adapted to support a plurality of tubes extending through the shell. The second tube sheet is adapted to be fastened to a front surface of the first tube sheet and fastened to a rear surface of the plenum. The second tube sheet includes a plurality of second holes adapted to support the plurality of tubes extending through the plurality of first holes. The second tube sheet is made of a metal adapted to limit a corrosion response of the plurality of tubes when exposed to a chiller fluid.

    A SHELL-AND-TUBE HEAT EXCHANGER WITH HELICAL BAFFLES

    公开(公告)号:US20240369305A1

    公开(公告)日:2024-11-07

    申请号:US18577521

    申请日:2022-06-24

    Applicant: Famet S.A.

    Inventor: Janusz Przybyla

    Abstract: A shell-and-tube heat exchanger with helical baffles wherein the shell (1) includes inside an outer continuous helical baffle (8) to support the tubes (4) of the outer bundle of tubes (2), and an integrated inner discontinuous helical baffle (23) to support the tubes (4) of the inner bundle of tubes (22). The outer continuous helical baffle (8) is formed of many main flat segments (11) and many intermediate flat segments (14) or (16). The inner discontinuous helical baffle (23) is formed of flat segments (25). The flat segments (25) with the intermediate flat segments (14) or (16) form together common flat segments (27) or (27A). The heat exchanger according to the present invention solves the problem of optimal continuous helical flow characterized by highly efficient heat transfer.

    HEAT EXCHANGER
    4.
    发明公开
    HEAT EXCHANGER 审中-公开

    公开(公告)号:US20240200884A1

    公开(公告)日:2024-06-20

    申请号:US18510818

    申请日:2023-11-16

    CPC classification number: F28D21/0001 F28D7/103 F28F1/022

    Abstract: A heat exchanger includes: a hollow heat recovery member having an inner peripheral surface and an outer peripheral surface in an axial direction, and an inflow end face and an outflow end face for a first fluid in a direction perpendicular to the axial direction; a first outer cylindrical member having an inflow port and an outflow port for the first fluid; a first inner cylindrical member having an inflow port and an outflow port for the first fluid, the first inner cylindrical member being fitted to the inner peripheral surface of the heat recovery member; and a second inner cylindrical member having an inflow port and an outflow port for the first fluid, the outflow port being located on an upstream side of the inflow end face of the heat recovery member based on the flow direction of the first fluid as a reference.

    Heat exchanger
    5.
    发明授权

    公开(公告)号:US12000656B2

    公开(公告)日:2024-06-04

    申请号:US16644969

    申请日:2018-09-11

    Abstract: A heat exchanger (10) of heat pipe configuration for transferring heat between a first and second process streams via a heat transfer fluid comprises: at least one first process stream passage (19); at least one second process stream passage (29); and a shell (11) enclosing the first and second process stream passages (19, 29) within a volume (55). The volume (55), as a result of a heat transfer process, is fully filled with both vapour and liquid phases of the heat transfer fluid. The first and second process stream passages (19, 29) are spaced by a disengagement zone (50) enabling gravitational separation of said vapour and liquid phases and limiting accumulation of liquid phase heat transfer fluid about the first process stream passage(s) (19). Such heat exchangers can be used, among other applications, to replace a flash cooling stage in a Bayer process plant.

    Flow path member for heat exchanger, and heat exchanger

    公开(公告)号:US11859916B2

    公开(公告)日:2024-01-02

    申请号:US17447704

    申请日:2021-09-15

    CPC classification number: F28D7/10 F01N5/02 F28F13/12

    Abstract: A flow path member for a heat exchanger includes: an inner cylinder capable of housing a heat recovery member through which a first fluid can flow; an outer cylinder having a feed port capable of feeding a second fluid and a discharge port capable of discharging the second fluid, the outer cylinder being disposed so as to be spaced on a radially outer side of the inner cylinder such that a flow path for the second fluid is formed between the outer cylinder and the inner cylinder; a feed pipe connected to the feed port; and a discharge pipe connected to the discharge port. The feed port and the discharge port are provided so as to be located in a distance of less than half the circumference of the outer cylinder in a circumferential direction.

    Heat exchanger and system for cooling a fluid comprising such a heat exchanger

    公开(公告)号:US11768036B2

    公开(公告)日:2023-09-26

    申请号:US17298536

    申请日:2019-11-22

    CPC classification number: F28D7/106 F28D2021/0021 F28F2210/02

    Abstract: A tubular heat exchanger (10) comprising: a fluid circulation chamber (20) intended to be supplied with a first fluid, referred to as outer fluid, brought to a first temperature, a heat exchange matrix (30) housed in said circulation chamber and formed by a plurality of heat exchange tubes (31) each comprising at least one pair of ducts (32; 33) nested one inside the other, extending along a direction, referred to as longitudinal direction, and defining: a channel for circulating a fluid, referred to as inner channel (32c; 33c), suitable for being able to be supplied with a second fluid, referred to as inner fluid, brought to a second temperature, and a channel for the circulation of a fluid, referred to as intermediate channel (32d; 33d), and suitable for being able to be supplied with a third fluid, referred to as intermediate fluid, brought to a third temperature, different from said first temperature.

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