CAGE VALVE
    91.
    发明公开
    CAGE VALVE 审中-公开

    公开(公告)号:US20240255072A1

    公开(公告)日:2024-08-01

    申请号:US18564726

    申请日:2022-05-19

    CPC classification number: F16K47/08 F16K3/246

    Abstract: The invention relates to a cage valve (10) comprising a valve housing (12) with a valve inlet (14) and a valve outlet (16), a valve cage (20) which is arranged between the valve inlet and valve outlet (14, 16) in the flow channel, and a valve element (18) which is movably supported in the valve housing (12) in the axial direction (a) with respect to the valve cage (20), wherein the valve cage (20) has a guide region, which guides the valve element (18) in the axial direction (a), and a throttle region, which has multiple throttle channels (22) that are mutually spaced in the axial direction and are arranged in a distributed manner when viewed in the circumferential direction (u), so that different throttle rates can be set on the basis of the axial position of the valve element (18) relative to the valve cage (20). The invention is characterized in that the throttle channels (22) are arranged such that the process medium flows exiting the throttle channels (22) are deflected in the circumferential direction (u) in the direction of the valve outlet (16) and flow out in a bundled manner in the axial direction (a).

    METHOD FOR DIAGNOSING AN OPEN- AND/OR CLOSED-LOOP CONTROL SYSTEM, AND OPEN- AND/OR CLOSED-LOOP CONTROL SYSTEM

    公开(公告)号:US20240028023A1

    公开(公告)日:2024-01-25

    申请号:US18042277

    申请日:2021-08-13

    CPC classification number: G05B23/0275

    Abstract: In a method for diagnosing control system of a process engineering plant having a plurality of actuating units for setting a process fluid and a central unit, at least one actuating-unit-specific control raw datum, such as a setpoint value, an actual value, a setpoint-actual difference value, or a control value, is detected; a particularly local diagnosis code is generated by one of the plurality of actuating units based on the at least one detected control raw datum; the diagnosis code is transmitted from the actuating unit to a central unit; a local diagnosis code, is transformed into a global diagnosis codes; a logical condition for a diagnosis deduction logic is defined such that when the logical condition is applied to at least one diagnosis code, the diagnosis deduction logic determines a predetermined deduction result; and a deduction result is determined based on the at least one diagnosis code.

    Preventing Control-Induced Oscillations of the Position of a Valve Member in a Valve with Pneumatic Actuator

    公开(公告)号:US20230400120A1

    公开(公告)日:2023-12-14

    申请号:US18207929

    申请日:2023-06-09

    CPC classification number: F16K37/0041 F16K31/12

    Abstract: A method for preventing control-induced oscillations in a valve with a pneumatic actuator and position control with an integrating component, including the following steps: Checking whether oscillations of the valve member occur by counting the zero crossings or extreme values of the control difference. If oscillations were detected, it is checked whether they result from oscillations of the set point. If not, the dead zone is increased and/or the gain parameter is decreased. If no oscillations were detected, it is checked whether wear in the drive has exceeded a predetermined measure. If so, the dead zone is decreased and/or the gain parameter is increased. In this way, oscillations caused by the I-component of the control can be detected and stopped. Further changes to the parameters are only made when friction is expected to have decreased due to wear.

    ELECTRIC FIELD DEVICE
    96.
    发明公开

    公开(公告)号:US20230160491A1

    公开(公告)日:2023-05-25

    申请号:US17919743

    申请日:2021-04-20

    CPC classification number: F16K31/02 F16K37/0083 H05K5/0052 H05K7/1462

    Abstract: The invention relates to an electric field device (10) with an ignition protection-type pressure-tight encapsulation for use in explosion-prone regions for controlling and/or regulating a valve unit of a process system, comprising a housing (12), in which a control unit (48) that comprises electronic components and is used as a monitoring, control, and/or regulating unit is arranged, said control unit (48) having a releasable communication connection to an operating unit (62). The housing (12) can be connected to a drive housing of the valve unit via a mechanical interface (42), and the housing has at least one connection feedthrough (44), via which at least one line can be connected that is connected to the control unit (48) via a connection interface (46). The invention is characterized in that the housing (12) is designed as a housing assembly with a modular structure, having a first module (16) which is formed together with the mechanical interface (42) to the drive housing and the connection feedthrough (44). The control unit (48) is secured in the first module (16) and has an interface to a control center, wherein the first module (16) can be mechanically connected to a cover element (20) selectively either directly or indirectly in a releasable manner, and the indirect connection of the first module (16) to the cover element (20) is produced with the interposition of a second module (18). The operating unit (62) is arranged in a stationary manner in the second module (16), and the second module (18) can be fixed in different angular orientations about a longitudinal axis of the electric field device relative to the first module (16).

    VALVE HOUSING AND GLOBE VALVE FOR CONTROLLING A PROCESS FLUID FLOW WITH A VALVE HOUSING

    公开(公告)号:US20220260180A1

    公开(公告)日:2022-08-18

    申请号:US17624607

    申请日:2020-07-03

    Abstract: In a valve housing for a globe valve for controlling a process fluid flow of a process plant (e.g. a chemical plant, petrochemical plant, a power plant, or a food processing plant), a passage opening is provided that can be closed by a valve member movable translationally in a vertical direction. The valve housing may define, in the vertical direction above the passage opening, a working space for accommodating the valve member. The valve housing may define a kettle space in the vertical direction below the passage opening. The valve housing may include at least one guide blade projecting radially into the kettle space for disturbing a process fluid vortex with vertical vortex axis of rotation filling the kettle space.

    MEASURING CHANNEL AND PROCESS FOR SPATIALLY ARRANGING A SENSOR COMPONENT OR SENSOR ARRAY IN A MEASURING CHANNEL

    公开(公告)号:US20210164817A1

    公开(公告)日:2021-06-03

    申请号:US17104825

    申请日:2020-11-25

    Abstract: In a method for spatially arranging at least one sensor array in a measuring channel, a predetermined desired geometry of the measuring channel is provided; a desired sensor-array arrangement associated with the desired geometry of the measuring channel is provided, where the sensor-array arrangement includes spatially-defined positioning parameters and orienting parameters in regard to the sensor components; an actual geometry of the measuring channel is captured; it is determined if a positioning parameter or an orienting parameter is outside of an admissible value range in relation to the actual geometry of the measuring channel, and the at least two sensor components of the sensor array are arranged in the measuring channel according to a most-current desired-sensor-array arrangement.

    VALVE SEAT AND CAGE ASSEMBLY
    99.
    发明申请

    公开(公告)号:US20200271230A1

    公开(公告)日:2020-08-27

    申请号:US16798360

    申请日:2020-02-22

    Abstract: The invention relates to a valve seat and cage assembly (18) comprising a valve cage (20) and a valve seat (22), the valve seat (22) being adapted to be screwed into the valve cage (20), which valve cage (20), in a connection portion (34) thereof, has a valve cage connection inner diameter (DK) in which the connection portion (32) of a valve seat (22) engages with its valve seat connection outer diameter (DV) and thus provides radial centering, a screw connection portion (37) and a shoulder (38), with the shoulder (38) serving as an axial stop between the valve cage and the valve seat, and with the valve seat (22) and the valve cage (20) being pressed against one another with an axial contact pressure component. The invention is characterized in that the screw-connection portion is located between the connection portion (32) and a shoulder (38), with the valve cage connection inner diameter (DK) and the valve seat connection outer diameter (DV) forming a fit with one another that will act to center the valve seat and the valve cage.

    Electropneumatic magnet valve, flapper valve member for an electropneumatic magnet valve

    公开(公告)号:US10724651B2

    公开(公告)日:2020-07-28

    申请号:US15482127

    申请日:2017-04-07

    Abstract: An electropneumatic solenoid valve for a pneumatically-actuated field device can include air channels, a flapper valve member, an electromagnetic controller, and a spring. An air supply channel, air dispensing channel and air exhaust channel can be mound into an air chamber. The flapper valve member can include a closure element arranged on an axial control direction and be engageable with a delimitation interior wall mouth of one of the air channels such that the flapper valve member is arranged with a circumferential axial distance to the delimitation interior wall. The electromagnetic controller can displace the flapper valve member in the axial control direction to ventilate/exhaust the air dispensing channel. The spring can bias the flapper valve member into a closed position to close closing the one of the air channels. The flapper valve member can be float-mounted in an unguided configuration except for spring within the air chamber.

Patent Agency Ranking