SENSOR DEVICE, MEASURING ARRANGEMENT, AND METHOD FOR ASSEMBLING A SENSOR DEVICE

    公开(公告)号:US20250027762A1

    公开(公告)日:2025-01-23

    申请号:US18708704

    申请日:2022-11-11

    Abstract: A sensor for a control valve of a process plant (e.g., a chemical plant, a power plant, a food-processing plant) may include a position sensor (e.g., a magnetoresistive position sensor), and a lever arm that may be rotationally movable about a fixed pivot point of the sensor device for converting a linear stroke movement of a control rod of the control valve into a corresponding transmission movement (e.g., rotational transmission movement) which is mapped on the position sensor. The lever arm may have a coupling for position-true, rotationally movable connection of the lever arm to a reference point of the control rod. The lever arm may include at least one first lever section and at least one second lever section movable relative to the first lever section.

    Actuator for a process plant
    62.
    发明授权

    公开(公告)号:US12169032B2

    公开(公告)日:2024-12-17

    申请号:US17918982

    申请日:2021-04-16

    Inventor: Manuel Hielscher

    Abstract: The invention relates to an actuator (10) for a process plant, comprising an actuating valve (14) and an actuating drive (12) which has an actuating drive housing (20) and a drive rod (18) mounted in the actuating drive housing (20), wherein the actuating drive housing (20) is connected to a valve housing (22) of the actuating valve (14) via a connecting housing. The invention is characterized in that a second rod coupling (46) and an adjusting rod (42) are provided, the adjusting rod (42) being provided in the region between the drive rod (18) and the valve rod (38), one rod coupling (44, 46) coupling the adjusting rod (42) to the drive rod (18), and one rod coupling (44, 46) coupling the adjusting rod (42) to the valve rod (18).

    CONTROL VALVE
    63.
    发明公开
    CONTROL VALVE 审中-公开

    公开(公告)号:US20240328519A1

    公开(公告)日:2024-10-03

    申请号:US18575220

    申请日:2022-06-28

    CPC classification number: F16K3/246 F16K47/08

    Abstract: A control valve incorporates a valve housing with a main body having a valve inlet and valve outlet, a valve seat in the flow duct between the valve inlet and valve outlet, a valve cage in the flow duct between the valve inlet and valve outlet, and a valve member which is movable in the axial direction (a) relative to the valve seat and valve cage and connectable to an actuator rod of a drive via a drive rod. The valve housing has an extension body extending the main body in the axial direction (a) and a valve cover which closes the extension body and through which the actuator rod can sealably pass. The control valve further includes a circulation barrier in the valve housing which prevents circulation of a process medium in the extension body. The circulation barrier and the valve cage are in contact with each other via contact pressure surfaces opposite one another in the axial direction (a). The circulation barrier and valve cage components are jointly fixed in the valve housing via a fastening means.

    Electropneumatic field device
    66.
    发明授权

    公开(公告)号:US12038093B2

    公开(公告)日:2024-07-16

    申请号:US17920939

    申请日:2021-05-07

    Inventor: Sven Rausch

    CPC classification number: F16K15/148 F16K17/02

    Abstract: An electropneumatic field device, such as an electropneumatic setting regulator or the like, incorporates a protective housing which has a housing cover and in which at least one electronic component and at least one pneumatic component are arranged. The protective housing is connected to at least one electric field input, at least one pneumatic supply inlet, and at least one pneumatic field outlet. The electric field input is connected to the electronic component, the pneumatic supply inlet and the pneumatic field outlet are coupled to the pneumatic component, the pneumatic component is connected to the electronic component for signaling purposes, and the protective housing has a ventilation device paired with the pneumatic component. The pneumatic component is at least partly surrounded by the housing cover which is releasably connected to the protective housing, and the ventilation device of the protective housing is integrated into the housing cover.

    METHOD FOR PROVIDING AT LEAST ONE ITEM OF INFORMATION RELATING TO A HYDRAULIC SYSTEM

    公开(公告)号:US20240102497A1

    公开(公告)日:2024-03-28

    申请号:US18261468

    申请日:2022-01-12

    CPC classification number: F15B19/005 F15B19/007

    Abstract: The invention relates to a method for providing at least one piece of information about a hydraulic apparatus (1), wherein the following stages are performed:



    Performing a detection (201) of detection values (210) at the apparatus (1), wherein the detection values (210) are specific for measurements at different measuring points and at different apparatus components (120) of the apparatus (1),
    Performing a transmission (202) of the detected detection values (210) to a processing component (300),
    Providing an apparatus information (211) about a specification of the apparatus (1) and/or the measurements, wherein providing the apparatus information (211) is performed at the processing component (300) to provide the transmitted detection values (210) with the apparatus information (211).

    VALVE CONTROL DEVICE, PROCESS ENGINEERING PLANT HAVING A VALVE CONTROL DEVICE, DIAGNOSTIC METHOD AND USE OF A VALVE CONTROL DEVICE

    公开(公告)号:US20240052948A1

    公开(公告)日:2024-02-15

    申请号:US18005315

    申请日:2021-06-28

    CPC classification number: F16K37/0083 G05B17/02

    Abstract: In a position closed-loop controller (31) for a valve control device (1) of a process engineering plant (100), comprising a first signal input (11) for a pilot signal, such as a process control signal (pg) from a process closed-loop controller (120) of the process engineering plant (100), a second signal input for a position actual signal (i) with regard to a control valve (35), wherein the position control-loop controller (31) is designed to generate a more particularly pneumatic control variable (g) for an actuator (33) to actuate the control valve on the basis of the pilot signal and the position actual signal (i) and comprises a more particularly pneumatic control output for the control variable (g). According to the invention, the position closed-loop controller (31) is configured to calculate an approximation signal (ap), by means of a configurable closed-loop controller model based on a particular closed-loop controller, more particularly the process closed-loop controller (120), proceeding from the pilot signal, wherein the closed-loop controller model is configured such that a signal generated by the particular closed-loop controller proceeding from the approximation signal (ap) corresponds to the pilot signal.

    Method for verifying the operability of a safety valve

    公开(公告)号:US11867315B2

    公开(公告)日:2024-01-09

    申请号:US17190742

    申请日:2021-03-03

    Inventor: Tobias Boll

    CPC classification number: F16K37/0083 F16K37/0091 F16K37/0041 G01M13/003

    Abstract: A method for verifying the operation of a safety valve having a valve member and a positioner for controlling the position of the valve member is proposed. The safety valve is part of a plant on which a process with a process medium runs. The plant has a sensor for monitoring the state of the plant, the process and the process medium. A sensor's measured value is used to determine a point in time during ongoing plant operation at which the operability of the valve can be verified in the context of a partial stroke test. The test can also be monitored with the sensor and the stroke range traversed therein can be dynamically adapted to the state. The test can thus be performed safely during operation and with an optimized stroke range. The method enables more frequent testing of and more reliable statements about the operability of the safety valve.

    Testing the operability of a safety valve for a safety case

    公开(公告)号:US20230304603A1

    公开(公告)日:2023-09-28

    申请号:US18007738

    申请日:2021-05-27

    CPC classification number: F16K37/0083 F16K31/423

    Abstract: Methods for testing the operability of a safety valve, as well as a solenoid valve for triggering a safety valve, and corresponding devices are proposed. The safety valve has a solenoid valve which is used to vent the pneumatic actuator in a safety case. Initially, a safety case is triggered. The position course of the valve member is recorded, and the time required until the safety position is reached is compared with a reference value. From this, it can be reliably concluded whether the assumption of the fail-safe position was caused by the solenoid valve or by the positioner. The measured values of pressure sensors can also be taken into account and allow further diagnostics to be carried out if operability is not assured. If the result of the test is positive, maintenance intervals can be optimized.

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