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    A PROCESS WATER ANALYZER
    4.
    发明公开
    A PROCESS WATER ANALYZER 审中-公开

    公开(公告)号：EP4310460A1

    公开(公告)日：2024-01-24

    申请号：EP22185435.9

    申请日：2022-07-18

    申请人： Hach Lange GmbH

    发明人： GOLITZ, Andreas ,  BATTEFELD, Manfred ,  DE HEIJ, Dr. Bas ,  HEUWOLD, Maik ,  MINKE, Sebastian

    IPC分类号： G01F11/02 ,  F04B49/00 ,  G01N21/17 ,  G01N33/18 ,  G01F22/02

    摘要： The invention is directed to a process water analyzer (10) for automatically analyzing a parameter of a water sample, comprising
    a process liquid reservoir tank (70,72) with a process liquid (70',72'), whereas the process liquid reservoir volume (V70,V72) in the reservoir tank (70,72) defines a reservoir liquid level (170,172) at a reservoir liquid level height (h70, h72),
    a dosage chamber (30) fluidically connected to the process liquid reservoir tank (70,72) and being positioned fluidically downstream of the process liquid reservoir tank (70,72), and
    a positive displacement dosage pump (20) fluidically connected to the top of the dosage chamber (30) for sucking in the process liquid (70', 72') into the dosage chamber (30),
    whereas an air cushion (27) is always provided vertically between the dosage pump (20) and a dosage chamber liquid level (I) in the dosage chamber (30), so that a liquid column (Ic70, Ic72) with an effective vertical liquid column length (c70,c72) is given between the reservoir liquid level (170,172) and the dosage chamber liquid level (I),
    whereas the dosage pump (20) directly sucks a pressure-adapted gas volume (Vgas) of the air cushion (27) having an air cushion pressure (P) so that a set process liquid volume (Vliquid) is pumped into the dosage chamber (30), and
    whereas a process liquid dosage control unit (200) is provided, the process liquid dosage control unit (200) providing the value of the pressure-adapted pumped gas volume (Vgas) dependent on the air cushion pressure (P) effected by the effective vertical liquid column length (c70,c72).

    SYSTEM FOR MONITORING THE LIQUID LEVEL IN A MIXTURE OF A GAS AND A LIQUID COMPRISING TWO INTERMISCIBLE COMPONENTS HAVING DIFFERENT DENSITIES AND METHOD THEREOF
    9.
    发明公开
    SYSTEM FOR MONITORING THE LIQUID LEVEL IN A MIXTURE OF A GAS AND A LIQUID COMPRISING TWO INTERMISCIBLE COMPONENTS HAVING DIFFERENT DENSITIES AND METHOD THEREOF 审中-公开

    公开(公告)号：EP4184130A1

    公开(公告)日：2023-05-24

    申请号：EP21209192.0

    申请日：2021-11-19

    申请人： Yara International ASA

    发明人： Williams, Rebecca Sian ,  Halasa, Matej

    IPC分类号： G01F23/00 ,  G01F22/00

    摘要： The present disclosure relates to a system for containing a chemical mixture comprising a liquid comprising at least two intermiscible components having different densities, and a gas. The system comprises a spherical reservoir (1) comprising a top section (2), a bottom section (3) and a bottom (9); a vertically positioned standpipe (4) having a top section (5) in fluid communication with the top section (2) of the spherical reservoir (1) through a connection pipe (15), and a bottom section (6) comprising a bottom (11), in fluid communication with the bottom section (3) of the spherical reservoir (1) through a connection pipe (12); a conduit (7) in fluid communication with the top section (2) of the spherical reservoir (1) for supplying the gas from the chemical mixture; a first draining pipe (8) in fluid connection with the bottom (9) of the spherical reservoir (1); and a second draining pipe (10) in fluid communication with the bottom (11) of the standpipe (4). The system is characterised in that the bottom section (6) of the standpipe (4) is higher than the bottom section (3) of the spherical reservoir (1), and wherein the connection pipe (12) is a downwardly-inclined pipe from the bottom section (6) of the standpipe (4) to the bottom section (3) of the spherical reservoir (1). The system further relates to a method for indicating the level of liquid in a system according to the system of the disclosure and to the use of the system of the disclosure for performing the method of the disclosure.