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公开(公告)号：US12117099B2
公开(公告)日：2024-10-15
申请号：US17786457
申请日：2020-12-17
发明人： David Wagner-Stürz
CPC分类号： F16K37/0066 , F15B19/005 , F15B20/008 , F16K31/423 , F15B2211/8752
摘要： The disclosure provides a method for testing a solenoid valve for triggering a safety valve having a single-acting fluidic drive and a positioner. The drive fluid pressure is increased by a first pressure difference. An attempt is made to switch the solenoid valve to the safety position. The drive fluid pressure is measured at a specified point in time that is selected such that the pressure in the drive fluid lowers at most by the first pressure difference. If the pressure in the drive fluid is higher than a reference pressure at the specified point in time, the functionality test of the solenoid valve is failed. The lowering of the pressure in the drive fluid is monitored over a defined period of time to make conclusions regarding the pressure generating system. The pressure does not fall below the operating pressure so the position of the valve member remains constant.
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公开(公告)号：US12098781B2
公开(公告)日：2024-09-24
申请号：US17256556
申请日：2019-07-03
发明人： David Wagner-Stuerz
IPC分类号： F16K37/00
CPC分类号： F16K37/0083 , F16K37/0041
摘要： 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.
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公开(公告)号：US20240288073A1
公开(公告)日：2024-08-29
申请号：US18688744
申请日：2022-08-26
发明人： Stefan KOLBENSCHLAG
CPC分类号： F16J15/186 , F16K37/0033 , F16K41/02
摘要： A control valve unit includes a valve rod sealed from a valve housing via a seal assembly. The seal assembly has a packing, received axially between a pressure sleeve and a counter bearing on the valve housing. The pressure sleeve is movably and axially mounted via a pressing element relative to the valve housing and transmits a pressing force to the pressure sleeve by a spring element to the packing. The spring element is supported on a pretensioning device with an adjustable distance to the counter bearing. The pressing force of the spring element on the pressure sleeve is adjustable and the spring element is arranged axially between first and second stops of the pretensioning device. In a preinstalled state of the pretensioning device, the spring element is supported on the first and second stops. In an operating state, the second stop is at a fixed distance to the first stop in the direction of the counter bearing. The change in the axial position of the pressure sleeve is limited by the second stop and at a distance to the pressure element in the direction of the counter bearing.
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公开(公告)号：US20240053728A1
公开(公告)日：2024-02-15
申请号：US18042738
申请日：2021-08-13
发明人： Torsten Jung , Jens Bieger , Thomas Steckenreiter
IPC分类号： G05B19/4155
CPC分类号： G05B19/4155 , G05B2219/32287 , G05B2219/31119
摘要： A field device for a process plant, may include a power distributing data switch having an electrical primary connection to consume power at a first power level higher than 10W, and at least two electrical secondary connections for combined data communication and power transfer at a second power level of lower than 10W per secondary connection. The field device may also include a housing to accommodate electrical components safe from dust and/or water, which forms a first housing compartment fitted for pressure proof enclosure of electrical components in an environment with explosive or flammable atmosphere and which accommodates the primary connection. The secondary connections may be arranged outside a pressure proof enclosure and outside the first housing compartment. The device may include a protective bridge to isolate leads out of the first housing compartment to connect the primary connection to the secondary connections.
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公开(公告)号：US11698274B2
公开(公告)日：2023-07-11
申请号：US16575626
申请日：2019-09-19
发明人： Matthias Grasz
CPC分类号： G01D5/145 , F16K31/508 , G01B7/30
摘要： 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.
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6.发明申请公开(公告)号：US20220326696A1
公开(公告)日：2022-10-13
申请号：US17635321
申请日：2020-08-13
发明人： Andreas Widl , Philipp Friedrichs
IPC分类号： G05B19/418
摘要： In a method for optimizing a modular system for technical functional units of a process engineering plant, a modular system is provided having components for configuring technical functional units. The modular system can be projected in a simulation environment such that each component can be represented based on its physical properties as a virtual component with corresponding parameters in the simulation environment. Parameters of the virtual components are varied in the simulation environment to determine a modified configuration of at least one technical functional unit using at least one of the virtual components with at least one varied parameter. The operation of the technical functional unit(s) is simulated with the modified configuration. A set of virtual components is determined from the virtual components with varied parameters based on results of the simulation. One or more components of the modular system are adapted based on the determined set of virtual components.
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公开(公告)号：US20220065362A1
公开(公告)日：2022-03-03
申请号：US17415591
申请日：2019-12-17
摘要： Electropneumatic solenoid valve includes an electromagnetic actuator with an energizable coil and a solenoid armature movable relative to the coil, an air chamber with three air channels, and a valve member. The three air channels include first and second air channels and a control air channel. The valve member, in a first closed position, closes the first air channel and releases the second air channel and which, in a second closed position, closes the second air channel and releases the first air channel. The valve further includes a driver movable in a first and second actuating directions and that connects the valve member to the solenoid armature, a driver-pretensioning spring arranged between the driver and the solenoid armature, to provide a pretensioning force to the driver, and a restoring spring between the driver and the electromagnetic actuator to provide a restoring force to the driver against the driving direction.
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公开(公告)号：US11236832B2
公开(公告)日：2022-02-01
申请号：US16265751
申请日：2019-02-01
发明人： Michael Merscher
IPC分类号： F16K5/20 , F16K27/02 , F16K39/02 , F16K31/122
摘要： In a valve housing modular system, different configurations for a globe valve arranged to adjust a process fluid flow are provided. The globe valve can have a globe valve member movable in translation along a stroke axis. The system can include a housing corpus with a process fluid inlet and outlet, a process fluid passage arranged therebetween, and an actuating opening to introduce the rod for actuating the globe valve member along the stroke axis; and a housing cover for covering the actuating opening. The system can include different adapters for the different functional/structural configurations.
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公开(公告)号：US20210382459A1
公开(公告)日：2021-12-09
申请号：US16764776
申请日：2018-11-14
发明人： Andreas Widl , Leon Urbas
IPC分类号： G05B19/418 , H04L9/08
摘要： In a method for the encryption communication in a process plant, one or more keys for coding of electronic signals regarding the process plant, such as actuation signals, measurement signals, state signals, warning signals or such, are provided. The one or more keys are transmitted as acoustic signal via a ductwork guiding plant fluid, particularly a process fluid or an auxiliary fluid, from the first communication partner to the second communication partner. The process plant can be a chemical plant, a power plant, or a food-processing plant. The communication can be between a first and a second communication partner, which can include at least one field device, such as an actuator for adjusting a process fluid and/or a control electronics for supervising, controlling and/or regulating processes of the process plant.
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公开(公告)号：US11143311B2
公开(公告)日：2021-10-12
申请号：US16798360
申请日：2020-02-22
发明人： Andreas Sander , Michael Merscher
摘要： 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.
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