DEVICE FOR CONTROLLING FLUID FLOW
    41.
    发明公开

    公开(公告)号:EP3633486A1

    公开(公告)日:2020-04-08

    申请号:EP19212075.6

    申请日:2017-04-25

    摘要: A device (22) for controlling the flow of a fluid through a conduit (1) from an upstream side (4) of the device to a downstream side (6) of the device. The device includes a valve aperture (30), a cylindrical mounting member (24) on the downstream side of the valve aperture, a valve member (26) on the outside of the cylindrical mounting member that moves reciprocally to open and close the valve aperture, a control volume (44) defined between the cylindrical mounting member and the valve member, an arrangement (8) for introducing a control pressure into the control volume, and a seal (34) between the outer surface of the cylindrical mounting member and the inner surface of the valve member that substantially seals the control volume. The valve member is acted on by the pressure of the upstream side (Pi) and the control pressure (P 4 ) so as to be moved by the difference between these pressures.

    Régulateur de débit à décolmatage automatique
    44.
    发明公开
    Régulateur de débit à décolmatage automatique 有权
    Abflussdrossel mit automatischerSpülung

    公开(公告)号:EP1426507A1

    公开(公告)日:2004-06-09

    申请号:EP03078611.5

    申请日:2003-11-18

    CPC分类号: E03F5/107 G05D7/0166

    摘要: Le dispositif de décolmatage automatique, selon l'invention, comprend un capteur d'écoulement, un vérin pneumatique ( 6 ) et une bouteille de gaz comprimé, reliée au dit vérin ( 6 ), dont la mise en fonction, ainsi que la purge d'air du vérin ( 6 ), sont commandées par un distributeur, contrôlé par le bras du flotteur du capteur d'écoulement. La pleine ouverture de l'orifice ( 1 ) du régulateur est obtenue par action de la tige ( 61 ) du vérin ( 6 ) sur l'arête supérieure ( 21 ) du registre ( 2 ).

    摘要翻译: 浮阀流量调节器具有自动释放装置,其包括流量检测器浮子和连接有一瓶压缩气体的气动致动器(6)。 执行器的操作由由浮子的臂控制的分配器控制。 调节器通道(1)可以通过致动器杆(61)在控制门(2)上的作用而完全打开。

    VERFAHREN UND VORRICHTUNG ZUR DOSIERTEN ABGABE KLEINER FLÜSSIGKEITSVOLUMENSTRÖME
    45.
    发明公开
    VERFAHREN UND VORRICHTUNG ZUR DOSIERTEN ABGABE KLEINER FLÜSSIGKEITSVOLUMENSTRÖME 有权
    方法和设备的液体低体积流量的计量输送

    公开(公告)号:EP1358364A2

    公开(公告)日:2003-11-05

    申请号:EP01989461.7

    申请日:2001-11-10

    申请人: Aixtron AG

    摘要: The invention relates to a method for the metered delivery of low volumetric flows by the introduction of a gaseous stream into a tank containing a liquid and the displacement of the liquid through a liquid conduit. To improve said method, a partial gaseous stream (Q2) is diverted from a mass-flow controlled gaseous stream (Q1), at a pressure (P1) that is maintained at a constant level and that essentially corresponds to the gaseous pressure (P2) in the tank (4), and is guided into said tank to displace the liquid, the mass flow of the partial gaseous stream (2) being measured. A variation in the pressure (P1) allows a partial gaseous mass-flow to be set, whose volumetric flow, determined by taking into consideration the gas density (Q1), corresponds to the desired value for the liquid volumetric flow (Q3).

    Flow control valve apparatus
    48.
    发明公开
    Flow control valve apparatus 失效
    流量控制阀装置

    公开(公告)号:EP0291140A3

    公开(公告)日:1990-09-19

    申请号:EP88200972.3

    申请日:1988-05-16

    IPC分类号: G05D7/06 G05D7/03 F15B13/042

    摘要: A flow control valve apparatus includes a housing (5;5A) including a main fluid passage (4) having an inlet port (2) and an outlet port (3); a main valve (6;81;174) disposed between the inlet port and the outlet port for allowing or shutting off communication between the inlet port and the outlet port; a backpressure chamber (11) formed between an inner wall of the housing (5;5A,5B) and a rear portion (10) of a valve member (8;82) of the main valve, the backpressure chamber communicating with the inlet port through an orifice (12); an auxiliary passage (13;92,94) for placing the backpressure chamber in communication with the outlet port; and a pilot valve (14;61;96;101;121;141;161;177;190;191;193) for actuating the main valve member by controlling the opening and closing of the auxiliary passage and varying the fluid pressure in the backpressure chamber. A differential pressure generating means (30;64;71;131;146;171) is disposed in the main fluid passage (4) for generating differential pressures that correspond to the flow rate in the main fluid passage. The differential generating means (30;64;71;131;146;171) includes a displacement member (32;72;132;147;172) disposed for movement in the direction of fluid flow in the main fluid passage and spring means (33;182) for urging the displacement member in the direction opposite to the direction of fluid flow, and the displacement member cooperates with a wall surface (34;65) of the main fluid passage to define a fluid passage having an opening area which increases with an increase in the stroke of travel of the displacement member.

    Modulation system for pressure reducing valves
    49.
    发明公开
    Modulation system for pressure reducing valves 失效
    调制系统(Druckverminderungsventile)。

    公开(公告)号:EP0369738A2

    公开(公告)日:1990-05-23

    申请号:EP89311767.1

    申请日:1989-11-14

    IPC分类号: G05D7/03

    CPC分类号: G05D7/03

    摘要: A flow modulator system for a pressure reducing valve includes means to sense changes in flow and actuate the valve in response thereto. A first means (3) to create a first differential pressure is arranged in the flow path downstream of the valve, said first differential pressure being dependent on the flow rate of fluid in the flow path. A bypass tube (6) of smaller cross-sectional area is connected between a location substantially adjacent to a low pressure zone (4) of said first differential pressure creation means (3) and a point (5) between the valve (2) and the first differential pressure creation means (3). The bypass tube (6) is provided with a second means (7) to create a second differential pressure, the pressure at a low pressure zone (8) of said second differential pressure creation means (9) being transmitted to the valve (2) as an indication of the flow rate in the flow path.

    摘要翻译: 用于减压阀的流量调节器系统包括用于检测流量变化并响应于此来致动阀门的装置。 在阀的下游的流路中布置有用于产生第一压差的第一装置(3),所述第一压差取决于流路中流体的流量。 具有较小横截面面积的旁通管(6)连接在基本上邻近所述第一压差产生装置(3)的低压区(4)的位置和阀(2)和 第一压差产生装置(3)。 旁通管(6)设置有第二装置(7)以产生第二差压,所述第二差压创建装置(9)的低压区(8)处的压力被传递到阀(2) 作为流路中的流量的指示。

    Vorrichtung zur Regelung der Durchflussmenge
    50.
    发明公开
    Vorrichtung zur Regelung der Durchflussmenge 失效
    Vorrichtung zur Regelung der Durchflussmenge。

    公开(公告)号:EP0205056A1

    公开(公告)日:1986-12-17

    申请号:EP86107387.2

    申请日:1986-05-30

    发明人: Ries, Peter

    IPC分类号: G01F25/00 G05D7/03

    CPC分类号: G01F25/0007 G05D7/03

    摘要: Die Vorrichtung umfasst einen Vorlauf-Behälter (2) und einen Rücklauf-Behälter (3), beide gegliedert in je einen durch eine Ueberlaufkante (4, 8) begrenzten Niveauraum (5, 9), einen Gasraum (6, 10) und einen Ueberlaufraum (7, 11), und je ein auf die Behälter (2, 3) wirkende Regeleinrichtung (12, 13), mit deren Hilfe sich in den Behältern (2, 3) pneumatische Drücke einstellen lassen. Dadurch wird über der Messstrecke (1) eine hydraulische Druckdifferenz erzeugt, die frei von Druck-Oszillationen ist. Eine in eine Förderleitung (15) eingebaute Förderpumpe (16) und ein in eine Ueberströmieitung (19) eingebautes Drosselventil (18) dienen dazu, die Niveauräume (5, 9) immer bis zur Ueberlaufkante (4, 8) mit Flüssigkeit gefüllt zu erhalten. Mit Hilfe einer Temperiereinrichtung (17) kann die Temperatur der Flüssigkeit variiert werden. Eine solche Vorrichtung kann zur Prüfung und Eichung von Geräten zur Messung der Strömungsgeschwindigkeit von Flüssigkeiten und von Flüssigkeitsmengen als Integral der Strömungsgeschwindigkeit über der Zeit dienen.

    摘要翻译: 1.一种用于通过测量部分(1)控制或调节液体的定量流速的装置,其特征在于,其包括: - 进料容器(2),包括由第一溢流边缘(4)限定的第一级室(5) ),第一气室(6)和第一溢流室(7), - 返回容器(3),包括由第二溢流边缘(8)限定的第二水平室(9),第二气室(10) 和第二溢流室(11), - 输送泵(16),其安装在输送管道(15)中,用于将液体从返回容器(3)输送到进料容器(2)中; - 输送管 (19),其从所述进料容器(2)的第一溢流室(7)引导到所述返回容器(3)并且包括节流阀(18), - 第一调节装置(12) 所述进料容器(2)和用于调节所述返回容器(3)中的压力的​​第二调节装置(13),并且所述测量秒 (1)连接在第一水平室(5)和第二水平室(9)之间。