公开(公告)号：US20210254750A1

公开(公告)日：2021-08-19

申请号：US17256556

申请日：2019-07-03

Applicant: SAMSON AKTIENGESELLSCHAFT

Inventor： David Wagner-Stuerz

IPC: F16K37/00

Abstract: A method for diagnosing possible causes of changes in at least one control valve, in a plant of which the control valve is a part, or in a process which is carried out on the plant is proposed, wherein at least in a first and in a second time interval the position of the actuator is detected, an operating point or operating range is determined from the first and from the second time interval, these are compared, and possible causes of changes in the at least one control valve, in the plant or in the process are diagnosed from detected differences. Such a diagnosis does not require any additional sensors and makes it possible to detect emerging problems or undesirable developments solely from the operating state of the valve.

公开(公告)号：US20210062933A1

公开(公告)日：2021-03-04

申请号：US17000359

申请日：2020-08-23

Applicant: SAMSON Aktiengesellschaft

Inventor： Sebastian KRAUSE ,  Michael MERSCHER ,  Janusz KOINKE ,  Joerg KUEHNBAUM

IPC: F16K31/06

Abstract: The invention relates to a control valve (10) for a process plant, comprising an actuator (16) which is connected to, and spaced from, a valve body (12) of a valve unit (11) via a yoke (14), the valve body (12) having a housing flange (32) which is detachably connected to the yoke (14), with the valve body (12) having an inlet (20) and an outlet (22) adapted to allow the flow of a process fluid therethrough, which inlet (20) and outlet (22) are each arranged in a fluid connection region (18, 19), and with an actuating member adapted to be displaced by the actuator (16) for controlling the flow rate of the process fluid being arranged in the passage (24) from the inlet (20) to the outlet (22). The invention is characterized in that the housing flange (32) connected to the yoke (14) has at least one recess (44) as well as a yoke fastening region (33), with the yoke fastening region (33) being formed as a bolt hole circle (34) with radially arranged connecting holes (36).

公开(公告)号：US20200088547A1

公开(公告)日：2020-03-19

申请号：US16575626

申请日：2019-09-19

Applicant: SAMSON AKTIENGESELLSCHAFT

Inventor： Matthias Grasz

IPC: G01D5/14 ,  G01B7/30 ,  F16K31/50

Abstract: A holder for a magnet of a magnet sensitive regulating valve position detector of a regulating valve of a process plant. The detector can include a shaft turnably movable supported in a housing of the detector, the shaft defining a turning axis oriented parallel to a turning spring supporting itself at the housing, and having a lever arm being turnably fixed with the shaft, the lever arm being coupled to the regulating valve such that a regulating valve stroke movement by the lever arm is transferable into a shaft rotation movement. The holder includes a holding fixture to interlockingly hold the magnet, a fixing section connected to the holding fixture to fix the holder at the shaft turnably fixedly, and a support connected to the holding fixture and the fixing section to latchingly support the rotational spring to generate a rotational spring force on shaft rotation movement.

公开(公告)号：US10274103B2

公开(公告)日：2019-04-30

申请号：US15172675

申请日：2016-06-03

Applicant: Samson Aktiengesellschaft

Inventor： Harald Kah

IPC: F16K37/00 ,  F16K31/42 ,  F15B5/00 ,  F15B19/00 ,  F15B20/00

Abstract: An electro-pneumatic actuator, such as a positioner or an I/P transducer array, for a field device of a processing plant, such as a brewery, a petrochemical plant or the like, can include a pneumatically operated display configured to visually and/or acoustically display at least one field device-specific operating information. The information can include a drive or valve position, or a regulating variable. The electro-pneumatic actuator can be configured to output at least one pneumatic drive actuating signal to a pneumatic drive so as to set a final controlling device, such as a control valve, of the field device. The electro-pneumatic actuator can be configured to output at least one pneumatic display actuating signal to the pneumatically operated display, which can differ from the pneumatic drive actuating signal.

公开(公告)号：US20190113910A1

公开(公告)日：2019-04-18

申请号：US16164135

申请日：2018-10-18

Applicant: SAMSON AKTIENGESELLSCHAFT

Inventor： David Wagner-Stuerz

IPC: G05B23/02 ,  G05B19/19 ,  G05B19/418

Abstract: In a diagnostic method for a positioning device of a process plant, such as a chemical plant, a food processing plant or the like, which includes an actuator (e.g. pneumatic or electric actuator) with a drive shaft and a positioning armature, such as an actuator valve, with a positioning shaft, the drive shaft and the positioning shaft being connected to one another in a rotationally fixed manner (e.g. by a detachable coupling interface and/or a positive-locking torque coupling, such as a claw coupling), a first measurement signal is detected during a movement of the drive shaft, and the first measurement signal or a derivative of the first measurement signal is evaluated with respect to a step-like change in order to detect a rotational backlash.

公开(公告)号：US10197076B2

公开(公告)日：2019-02-05

申请号：US15235560

申请日：2016-08-12

Applicant: Samson Aktiengesellschaft

Inventor： Frank Valentin-Rumpel

IPC: F15B13/04 ,  F15B15/20 ,  F15B11/04 ,  F15B5/00 ,  F15B11/10

Abstract: A pneumatic volume booster to amplify a control pressure output signal can include a pneumatic control outlet for attachment to a pneumatic working chamber of the pneumatic actuator; a pneumatic aeration inlet configured to receive the pneumatic control pressure signal from the position controller, a pneumatic amplification inlet configured to receive a constant pneumatic air amplification signal, a pneumatic de-aeration connection from the control outlet to a pressure sink configured to aerate the control actuator, a deaerator seat-valve separating and/or opening the pneumatic de-aeration connection, a pneumatic aeration connection between the first aeration inlet and the control outlet; an aerator seat-valve separating and/or opening the pneumatic aeration connection, a pneumatic amplification connection between the amplification inlet and the control outlet; an amplification seat-valve separating and/or opening the pneumatic amplification connection; and a mechanical seat-valve-operator for commonly operating the de-aeration seat-valve, the first aerator seat-valve and the amplification seat-valve.

公开(公告)号：US20180202577A1

公开(公告)日：2018-07-19

申请号：US15874260

申请日：2018-01-18

Applicant: SAMSON AKTIENGESELLSCHAFT

Inventor： Andreas Widl ,  Gerhard Widl ,  Stefan Unland ,  Uwe Schwab

IPC: F16K37/00 ,  H04R29/00 ,  G01N29/036 ,  E21B47/10

CPC classification number: F16K37/0083 ,  E21B47/101 ,  F16K37/0041 ,  F16K37/005 ,  F16K37/0058 ,  G01H9/00 ,  G01M3/025 ,  G01M3/24 ,  G01M3/38 ,  G01N29/036 ,  H04R1/028 ,  H04R23/008 ,  H04R29/004

Abstract: A diagnostic system and method to function-monitor an actuator to affect a process medium stream of a process engineering plant can include an optical microphone allocated to the actuator and a diagnostic electronics. The optical microphone can be configured to measure an acoustic, actuator-specific operating signal, as leakage sound and cavitation sound, based on electromagnetic radiation that is affected by the acoustic, actuator-specific operating signal, and generate an electrical measuring signal based on the measured acoustic, actuator-specific operating signal. The diagnostic electronics can be configured to receive and store, process, and/or transmit the electrical measuring signal.

公开(公告)号：US09903502B2

公开(公告)日：2018-02-27

申请号：US14998359

申请日：2015-12-23

Applicant: Samson Aktiengesellschaft

Inventor： Philipp Fuhr ,  Sebastian Krause ,  Christof Weigand

IPC: F16K31/122 ,  F15B11/036 ,  F15B15/14 ,  F15B20/00 ,  F15B15/16 ,  F15B11/12

CPC classification number: F16K31/1225 ,  F15B11/036 ,  F15B11/123 ,  F15B15/1409 ,  F15B15/16 ,  F15B20/004

Abstract: In a fluid-operated drive for a field device, the drive being designed to set a control valve of the field device, a fluidically operated basic drive is provided with a basic working chamber loaded fluidically and delimited by a basic drive housing part and by a basic actuating piston guided in the basic drive housing part. At least one supplementary drive is provided with a supplementary working chamber loaded fluidically and delimited by a supplementary drive housing part. The basic drive housing part and the supplementary drive housing part are displaceable in one another in accordance with a piston and chamber arrangement so that a volume of the supplementary chamber changes in the event of a relative movement of the drive housing parts.

公开(公告)号：US20160327964A1

公开(公告)日：2016-11-10

申请号：US15148171

申请日：2016-05-06

Applicant: Samson Aktiengesellschaft

Inventor： Joerg Kiesbauer

IPC: G05D7/06

CPC classification number: G05D7/0682 ,  F16K31/1262 ,  F16K31/1266 ,  G05D7/0688

Abstract: A field device that includes a primary valve, a main actuator, a bypass line, a secondary valve, and a position controller. The primary valve can be configured to adjust a process fluid flow. The main actuator can be configured to control the primary valve. The main actuator includes a working chamber to be subjected with a process fluid and a return device configured to bias the valve member. The bypass line can be configured to fluidly connect an inlet and an outlet of the primary valve to feed the process fluid to the working chamber. The position controller configured to control a pneumatic actuator to control the secondary valve to change a process fluid pressure in the working chamber. The controlling of the pneumatic actuator can include generating a pneumatic control signal based on a position of the primary valve and supplying the pneumatic control signal to the pneumatic actuator.

Abstract translation: 包括主阀，主致动器，旁通管线，次阀和位置控制器的现场设备。 主阀可以被配置成调节过程流体流量。 主执行器可以配置为控制主阀。 主致动器包括待处理流体的工作室和构造成偏压阀构件的返回装置。 旁路管线可以被配置成流体地连接主阀的入口和出口，以将过程流体供给到工作室。 位置控制器被配置为控制气动致动器以控制二次阀以改变工作室中的过程流体压力。 气动致动器的控制可以包括基于主阀的位置产生气动控制信号并将气动控制信号提供给气动致动器。

公开(公告)号：US20250004441A1

公开(公告)日：2025-01-02

申请号：US18754498

申请日：2024-06-26

Applicant: SAMSON AKTIENGESELLSCHAFT

Inventor： Christian Fiebiger ,  Andreas Fiebiger

IPC: G05B19/406

Abstract: A method is proposed for identifying the cause of oscillations in a cascaded control loop of a control valve in a controlled process plant, including the following steps: Setpoint value and actual value of the control valve are determined over time. The setpoint value and actual value are checked to see whether they exhibit a continuous oscillation. If an oscillation is detected, the amplitude and period duration are determined. If only the actual value or only the setpoint value oscillates, the period duration is compared with a characteristic period duration of the control valve. If the actual value and setpoint value oscillate, the amplitudes are compared with each other and/or the period duration is compared with a characteristic period duration of the control valve. The cause of the oscillations is identified from the comparisons. With this method, the cause of oscillations in a control loop of a control valve can be narrowed down so that the effort required for troubleshooting in the plant is reduced. Production downtimes can be minimized and costs avoided.