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13 条记录 (耗时 0.008 秒)

    LIQUID TRANSFER SYSTEM
    1.
    发明公开
    LIQUID TRANSFER SYSTEM 失效
    液体输送系统

    公开(公告)号：EP1007855A1

    公开(公告)日：2000-06-14

    申请号：EP97952692.8

    申请日：1997-12-19

    申请人： Chemand Corporation

    发明人： SCHELL, Daniel

    IPC分类号： F04F10/00

    CPC分类号： B67D7/007 ,  B67D7/0272 ,  B67D7/78 ,  F04F10/00 ,  G01F3/36 ,  G01F11/28 ,  Y10T137/0396 ,  Y10T137/2509 ,  Y10T137/2733 ,  Y10T137/2842 ,  Y10T137/2863 ,  Y10T137/3124 ,  Y10T137/469 ,  Y10T137/4807

    摘要： The liquid transfer system (10) includes a liquid supply tank (14) and at least two pressurizable liquid holding vessels (34, 42). The liquid holding vessels (34, 42) are placed beneath the supply tank (14), and a liquid supply line (20) connects the supply tank (14) to each vessel (34, 42). The liquid supply line (20) is operated as a siphon from the tank (14) to each vessel (34, 42), in order to move liquid from the tank (14) to each vessel (34, 42). Each vessel (34, 42) is alternately filled and pressurized to dispense liquid from the vessel (34, 42) such that one vessel is being filled while the other is dispensing liquid, and a constant controllable liquid output flow is achieved. A preferred embodiment includes a liquid recycling line to recycle or constantly move the liquid within the system (10) to achieve thorough mixing, and an in-line filter to improve liquid purity.

    Sampling
    3.
    发明公开
    Sampling 失效
    采样

    公开(公告)号：EP0202806A3

    公开(公告)日：1987-12-16

    申请号：EP86303368

    申请日：1986-05-02

    申请人： British Nuclear Fuels PLC

    发明人： Welch, Phillip John

    IPC分类号： G01N01/10

    CPC分类号： G01N1/10 ,  G01N2001/1463 ,  G01N2001/2071 ,  G01N2033/0093 ,  Y10T137/2863

    摘要： Sampling apparatus has a syphon with a longer arm 19 leading to a needle sampling station 20 from which extends a shorter arm 21 of the syphon. Liquid flow structure including a reverse flow diverter 10 is used to produce forward and reverse flow in the syphon and, on reverse flow, reduced pressure at the needle is produced by the head N of liquid, and during reverse flow some liquid enters a sampling bottle 24 through the needle 22. The needle extend into a T-piece and has a lower end at or below the mid line of the lateral leg of the T.

    PRESSURE CONTROL SYSTEM WITH OPTIMIZED PERFORMANCE
    4.
    发明公开
    PRESSURE CONTROL SYSTEM WITH OPTIMIZED PERFORMANCE 有权
    具有改进性能的压力控制系统

    公开(公告)号：EP1996988A1

    公开(公告)日：2008-12-03

    申请号：EP07750673.1

    申请日：2007-02-12

    申请人： MKS Instruments, Inc.

    发明人： DAVIDKOVICH, Vladislav ,  HILL, Gordon ,  CHAMBERLAIN, Dave ,  LUCAS, Paul

    IPC分类号： G05D16/20 ,  F16K51/02 ,  F16K3/34 ,  C23C16/00

    CPC分类号： G05D16/2013 ,  Y10T137/2863

    摘要： A pressure control system for controlling pressure of a fluid in a chamber (105) includes a pressure sensor (110) configured to measure the pressure of the fluid in the chamber, and a valve (120) configured to control the pressure of the fluid in the chamber by regulating flow of the fluid from the chamber. The pressure control system further includes a controller (140). The controller is configured to estimate the volume of the chamber, and to generate a pump speed curve of the valve. The controller is further configured to monitor and modify the pump speed curve so as to maintain a slope of the pump speed curve to at least a minimum value, and to use the modified pump speed curve to adjust the position of the valve in response to pressure measurements by the pressure sensor, so as to maintain the pressure in the chamber at a desired pressure setpoint.

    Sample monitoring instrument for on-line application
    5.
    发明公开
    Sample monitoring instrument for on-line application 失效
    样品控制的在线应用程序的工具。

    公开(公告)号：EP0214846A2

    公开(公告)日：1987-03-18

    申请号：EP86306855.7

    申请日：1986-09-04

    申请人： TYTRONICS INCORPORATED

    发明人： Platt, Moses

    IPC分类号： G01N1/00 ,  G01N31/16

    CPC分类号： G01F11/28 ,  G01N33/04 ,  Y10T137/2761 ,  Y10T137/2774 ,  Y10T137/2849 ,  Y10T137/2863 ,  Y10T137/2917 ,  Y10T436/116664 ,  Y10T436/117497 ,  Y10T436/119163 ,  Y10T436/12

    摘要： An apparatus and method for on-line monitoring of a characteristic of a process liquid stream includes a cell for isolating a precise volume of the liquid. There are provided means for over-filling a sample chamber and means for removing the excess from the chamber comprising a downwardly extending drain line which terminates at a precisely positioned, downwardly facing inlet and means for applying negative pressure to the drain line to draw the excess liquid upwardly from the captured volume until the liquid level reaches the inlet and entry of air disrupts the liquid draining effect. The embodiment shown employs a closed volume, a vent, a conduit for delivery of process liquid into the cell under pressure and a syphon/drain line for removing excess liquid from the cell volume until there remains only a sample of accurately repeatable volume.

    PRESSURE CONTROL SYSTEM WITH OPTIMIZED PERFORMANCE
    8.
    发明授权
    PRESSURE CONTROL SYSTEM WITH OPTIMIZED PERFORMANCE 有权
    具有改进性能的压力控制系统

    公开(公告)号：EP1996988B1

    公开(公告)日：2012-04-11

    申请号：EP07750673.1

    申请日：2007-02-12

    申请人： MKS Instruments, Inc.

    发明人： DAVIDKOVICH, Vladislav ,  HILL, Gordon ,  CHAMBERLAIN, Dave ,  LUCAS, Paul

    IPC分类号： G05D16/20 ,  F16K51/02 ,  F16K3/34 ,  C23C16/00

    CPC分类号： G05D16/2013 ,  Y10T137/2863

    摘要： A pressure control system for controlling pressure of a fluid in a chamber (105) includes a pressure sensor (110) configured to measure the pressure of the fluid in the chamber, and a valve (120) configured to control the pressure of the fluid in the chamber by regulating flow of the fluid from the chamber. The pressure control system further includes a controller (140). The controller is configured to estimate the volume of the chamber, and to generate a pump speed curve of the valve. The controller is further configured to monitor and modify the pump speed curve so as to maintain a slope of the pump speed curve to at least a minimum value, and to use the modified pump speed curve to adjust the position of the valve in response to pressure measurements by the pressure sensor, so as to maintain the pressure in the chamber at a desired pressure setpoint.