ANTI-CAVITATION LOW-NOISE CONTROL VALVE CAGE TRIM FOR HIGH PRESSURE REDUCING SERVICE IN LIQUID OR GASEOUS FLOW
    1.
    发明公开
    ANTI-CAVITATION LOW-NOISE CONTROL VALVE CAGE TRIM FOR HIGH PRESSURE REDUCING SERVICE IN LIQUID OR GASEOUS FLOW 失效
    防空气低噪声控制阀笼式装置,用于液体或气体流中的高压降低

    公开(公告)号:EP0174340A1

    公开(公告)日:1986-03-19

    申请号:EP85901213.0

    申请日:1985-02-07

    IPC分类号: F16K3 F16K47

    摘要: Un assemblage (17) d'une garniture de cage d'une vanne pour des vannes de commande d'anticavitation comprend une pluralité de manchons cylindriques emboîtés concentriquement (23, 25-29 et 41-46) avec des canaux annulaires d'étranglement d'écoulement de fluide (39, 47) définis entre des manchons adjacents. Chaque manchon possède un nombre identique de trous de plénum radiaux (38, 49) contenus dans le manchon et qui servent de chambre d'expansion, chaque trou de plénum intersectant au moins un canal d'étranglement d'écoulement pour obtenir des chemins d'écoulement de fluide tortueux de trous de plénum d'expansion et de canaux annulaires d'étranglement en alternance radialement au travers de l'assemblage de cage. La surface de section des canaux augmente d'un manchon à l'autre dans le sens d'écoulement du fluide pour obtenir une réduction étagée et progressive de la pression au fur et à mesure que l'écoulement avance au travers de l'assemblage de cage. La surface des trous de plénum est beaucoup plus grande que la surface de section totale de tous les canaux annulaires intersectant le trou de plénum de sorte que les canaux sont toujours des étranglements d'écoulement et les trous de plénum sont des chambres d'expansion.

    摘要翻译: 用于防气蚀控制阀的阀笼衬套的组件(17)包括具有环形节流通道的多个同心嵌套的圆柱套筒(23,25-29和41-46)。 限定在相邻套筒之间的流体流动(39,47)。 每个套筒具有相同数量的径向增压孔(38,49),所述径向增压孔容纳在套筒中并且用作膨胀室,每个增压孔与至少一个流动节流通道相交以获得 曲折的流体从膨胀压力通风孔和环形节流通道交替径向通过罩组件。 通道的横截面积沿着流体的流动方向从一个套筒增加到另一个,以在流体前进通过流体组件时实现阶梯式和逐渐减小的压力。 笼子里。 增压孔的表面远大于与增压孔相交的所有环形通道的总截面面积,使得通道仍然是限流器,并且增压室孔是扩张室。

    Integrated process control valve
    2.
    发明公开
    Integrated process control valve 失效
    Integriertes Prozess-Regelventil。

    公开(公告)号:EP0462432A2

    公开(公告)日:1991-12-27

    申请号:EP91108859.9

    申请日:1991-05-29

    IPC分类号: G05D7/06 F16K31/124 F16K37/00

    摘要: An integrated process control valve includes a fluid valve body having an inlet for receiving fluid, an outlet for discharging fluid, a fluid flow passage connecting the inlet and outlet, and a controllable throttling element which is moveable to selectively vary the flow rate of fluid through the fluid flow passage. The valve also includes an actuator coupled to the valve body and responsive to control signals for selectively moving the throttling element, a first pressure sensor disposed at the inlet of the valve body for producing a first signal representing the pressure of the fluid at the inlet, a second pressure sensor disposed at the outlet of the valve body for producing a second signal representing the pressure of the fluid at the outlet, a position sensor for producing a position signal indicating the position of the throttling element, and a utilization device for receiving the signals and either producing a display representing the signal values and/or producing control signals for supply to the actuator to cause the actuator to move the throttling element to thereby vary the fluid pressure at the inlet and outlet of the valve body. The control signals include pneumatic signals for developing pressures in the actuator to cause the actuator to move the throttling element. Sensors are provided for detecting the values of the pneumatic signals which may be displayed by the utilization device along with the display of representations of the other signal values, including the position signal values.

    摘要翻译: 集成过程控制阀包括具有用于接收流体的入口的流体阀体,用于排出流体的出口,连接入口和出口的流体流动通道,以及可控制的节流元件,其可移动以选择性地改变流体的流速 流体流动通道。 阀还包括致动器,其联接到阀体并响应于用于选择性地移动节流元件的控制信号;设置在阀体入口处的第一压力传感器,用于产生表示入口处的流体压力的第一信号, 第二压力传感器,设置在阀体的出口处,用于产生表示出口处的流体的压力的第二信号,用于产生指示节流元件的位置的位置信号的位置传感器,以及用于接收 并且产生表示信号值的显示器和/或产生控制信号以供给致动器,以使致动器移动节流元件,从而改变阀体入口和出口处的流体压力。 控制信号包括用于在致动器中显影压力以使致动器移动节流元件的气动信号。 提供了用于检测可由利用装置显示的气动信号的值以及包括位置信号值的其它信号值的表示的显示的传感器。

    Inner loop valve spool positioning control apparatus and method
    4.
    发明公开
    Inner loop valve spool positioning control apparatus and method 失效
    Vorrichtung und Methode zur Positionsregelung des Steuerkolbens eines Ventils mit innerer Regelschleife。

    公开(公告)号:EP0827056A2

    公开(公告)日:1998-03-04

    申请号:EP97110826.1

    申请日:1997-07-01

    发明人: Smith, Brian

    摘要: A valve control system for positioning a valve in response to a command signal. The valve control system comprises a sensor for detecting the position of the valve and for generating an outer feedback signal, a valve location command circuit for comparing the command signal to the outer feedback signal to generate a correction signal, an actuator for positioning the valve in response to pneumatic pressure, a spool slidably disposed within a block to direct pneumatic pressure to the actuator, a spool positioning device for moving the spool to a desired position, a spool sensor for detecting the current position of the spool and generating an inner feedback signal, and a spool location command for comparing the correction signal to the inner feedback signal to generate a spool positioning signal to direct the spool positioning device to move the spool to the desired position.

    摘要翻译: 一种用于响应于命令信号定位阀的阀门控制系统。 阀控制系统包括用于检测阀的位置并产生外部反馈信号的传感器,用于将命令信号与外部反馈信号进行比较以产生校正信号的阀位置指令电路,用于将阀定位的致动器 响应气动压力,可滑动地设置在块内以将气压引导到致动器的线轴,用于将线轴移动到期望位置的线轴定位装置,用于检测线轴当前位置并产生内反馈信号的线轴传感器 以及用于将校正信号与内部反馈信号进行比较以产生卷轴定位信号以引导卷筒定位装置将卷轴移动到期望位置的卷轴位置命令。

    Inner loop valve spool positioning control apparatus and method
    6.
    发明公开
    Inner loop valve spool positioning control apparatus and method 失效
    内回路阀芯定位控制装置和方法

    公开(公告)号:EP0827056A3

    公开(公告)日:1998-03-11

    申请号:EP97110826.1

    申请日:1997-07-01

    发明人: Smith, Brian

    摘要: A valve control system for positioning a valve in response to a command signal. The valve control system comprises a sensor for detecting the position of the valve and for generating an outer feedback signal, a valve location command circuit for comparing the command signal to the outer feedback signal to generate a correction signal, an actuator for positioning the valve in response to pneumatic pressure, a spool slidably disposed within a block to direct pneumatic pressure to the actuator, a spool positioning device for moving the spool to a desired position, a spool sensor for detecting the current position of the spool and generating an inner feedback signal, and a spool location command for comparing the correction signal to the inner feedback signal to generate a spool positioning signal to direct the spool positioning device to move the spool to the desired position.

    摘要翻译: 一种阀控制系统,用于响应命令信号来定位阀。 阀门控制系统包括用于检测阀门位置并用于产生外部反馈信号的传感器,用于将命令信号与外部反馈信号进行比较以产生校正信号的阀门位置命令电路,用于将阀门定位在 响应于气动压力;可滑动地设置在块内以将气动压力引导到致动器的滑阀;用于将滑阀移动到期望位置的滑阀定位装置;用于检测滑阀的当前位置并产生内反馈信号的阀芯传感器 以及用于将校正信号与内部反馈信号进行比较以产生阀芯定位信号以指导阀芯定位装置将阀芯移动到期望位置的阀芯位置命令。

    ANTI-CAVITATION LOW-NOISE CONTROL VALVE CAGE TRIM FOR HIGH PRESSURE REDUCING SERVICE IN LIQUID OR GASEOUS FLOW
    7.
    发明授权
    ANTI-CAVITATION LOW-NOISE CONTROL VALVE CAGE TRIM FOR HIGH PRESSURE REDUCING SERVICE IN LIQUID OR GASEOUS FLOW 失效
    用于液体或气体流量的高压减压服务的防渗低阻控制阀笼

    公开(公告)号:EP0174340B1

    公开(公告)日:1989-05-31

    申请号:EP85901213.0

    申请日:1985-02-07

    IPC分类号: F15D1/00 F16K47/00

    摘要: A valve trim cage assembly (17) for anti-cavitation control valves compises a plurality of concentrically nested, cylindrical sleeves (23, 25-29 and 41-46) with fluid flow constricting annular channels (39, 47) defined between adjacent sleeves. Each sleeve has an identical multiplicity of radial plenum holes (38, 49) contained therein which serve as expansion chambers, each plenum hole intersecting at least one flow constricting channel to provide tortuous fluid flow paths of alternating expansion plenum holes and constricted annular channels radially through the cage assembly. The cross sectional area of the channels increase from sleeve to sleeve in the direction of fluid flow to provide staged and gradually decreasing pressure reduction as the flow proceeds through the cage assembly. The area of the plenum holes is much greater than the total cross sectional area of all annular channels intersecting the plenum hole such that the channels are always flow restricting and the plenums are expansion chambers.