Testing control valves in the field

    公开(公告)号:US12098782B2

    公开(公告)日:2024-09-24

    申请号:US17504816

    申请日:2021-10-19

    Applicant: Dresser, LLC

    CPC classification number: F16K37/0083

    Abstract: A controller is configured to perform in-situ testing on a control valve. These configurations can generate a signal that changes position of a closure member in the valve during operation of a process. These changes exercise components of the valve for a short period of time. This testing may result in data that can indicate whether the device is operating properly or may be in need of maintenance or repair.

    Monitoring energy use on flow controls

    公开(公告)号:US12078263B2

    公开(公告)日:2024-09-03

    申请号:US17732610

    申请日:2022-04-29

    Applicant: Dresser, LLC

    Abstract: A flow control that is configured to monitor energy use. These configurations may include a controller that delivers a signal to pressurize a pneumatic actuator. This controller may have software that can calculate energy use based on pressure of the signal and, for example, changes in position of a valve. This feature can provide real-time data that operators can use to identify potential problems on their process lines. In one implementation, the operators can flag devices that exhibit energy use that trends away from baseline levels. These devices may have inherent issues that can manifest into larger, more catastrophic problems, potentially causing quality problems with end product or requiring the operating to shut-down the process line altogether.

    VALVE ACTUATION CONTROL
    3.
    发明公开

    公开(公告)号:US20240219934A1

    公开(公告)日:2024-07-04

    申请号:US18090832

    申请日:2022-12-29

    Applicant: Dresser, LLC

    CPC classification number: G05D7/0623 G05B15/02 G05D7/0635

    Abstract: Systems, devices, and methods of controlling valve actuation using an inertial sensor are provided. The system can include a valve including an inlet, an outlet, and a plug positioned between the inlet and the outlet. The plug can include a stem configured to translate or rotate in a first direction causing the plug to open the valve or to translate or rotate in a second direction causing the plug to close the valve. The system can also include an actuator coupled to the stem, an inertial sensor coupled to the stem, and a controller coupled to the inertial sensor and to the actuator. The controller can cause the controller to receive sensor data from the inertial sensor and to generate control signals provided to the actuator. The control signals can cause the actuator to translate or rotate the stem in the first direction or the second direction.

    MONITORING CONDITION OF A VALVE PLUG IN A VALVE

    公开(公告)号:US20240175518A1

    公开(公告)日:2024-05-30

    申请号:US18070685

    申请日:2022-11-29

    Applicant: Dresser, LLC

    CPC classification number: F16K37/0041 F16K1/36

    Abstract: A monitoring unit is configured for use on a valve. These configurations may include sensors that can generate data consistent with physical condition of a closure member, like a valve “plug,” when the valve is in service on a process line. Analysis of this data may indicate erosion on the plug that is often due to highly-erosive working fluids or other process (or application) conditions. Signals or alerts from the process control system, or DCS, may alert operators to perform timely maintenance that avoids problems that may arise as a result of physical changes in the valve plug.

    COATINGS FOR VALVE PARTS TO PREVENT EROSION
    5.
    发明公开

    公开(公告)号:US20240175506A1

    公开(公告)日:2024-05-30

    申请号:US18070736

    申请日:2022-11-29

    Applicant: Dresser, LLC

    CPC classification number: F16K25/04 B33Y10/00 B33Y40/20 B33Y80/00

    Abstract: A closure member is configured for use in a valve. These configurations may have a coating or conformal layer that may cover most, if not all, of the underlying material. This layer may include pre-propagated cracks that form due to thermal cycling prior to use in service. These pre-propagated cracks act as stress relief to accommodate for possible thermal stress that occurs due to different rates of thermal expansion between the underlying closure member and the coating. In one implementation, the layer may include a crack profile, which is engineered to direct formation of the pre-propagated cracks as well as to arrest crack development to a certain depth to maintain at least some integral layer of material over the underlying plug 118. This feature can extend service life of the plug, particularly in highly-erosive process fluids, like particle-entrained fluids commonly found in hydrocracking or refining operations.

    Packing for a high-pressure valve

    公开(公告)号:US11898656B1

    公开(公告)日:2024-02-13

    申请号:US18146060

    申请日:2022-12-23

    Applicant: Dresser, LLC

    CPC classification number: F16K41/04 F16K27/02

    Abstract: A valve bonnet defines a packing box having an inner surface Roughness Average (Ra) of 0.15 or less, for example, between 0.10 and 0.15. Multiple Polytetrafluoroethylene (PTFE) packing rings are in a packing stack. A packer is bolted to the bonnet and extends into the packing box. The packer is configured to apply a packing pressure on the packing, for example, between 100 megapascals (MPa) and 200 MPa. Such arrangements can allow for high pressure valves, for example valves that can retain up to 10,000 pounds per square inch (PSI) of pressure or up to 15,000 PSI.

    Clamping a plug tip in a control valve

    公开(公告)号:US11867297B2

    公开(公告)日:2024-01-09

    申请号:US17745951

    申请日:2022-05-17

    Applicant: Dresser, LLC

    CPC classification number: F16K1/482 F16K1/38 F16K1/54 F16K3/0281 F16K2200/30

    Abstract: A plug assembly that is configured to secure a plug tip to a valve stem. These configurations may include a clamp that secures to an end of the valve stem. The clamp encloses at least part of the plug tip. In one implementation, the design may include a spring assembly that generates a pre-load on the top of the plug tip, as well. The clamp is useful because it accommodates plug tips made from ceramics and like, brittle materials. Its features can prevent certain mechanical failure, for example, cracks or breaks that can occur during manufacture or assembly. As an added benefit, the device can maintain alignment of the plug tip with the valve stem. This feature can ensure proper engagement with a seat in a flow control, like a control valve.

    MONITORING ENERGY USE ON FLOW CONTROLS
    8.
    发明公开

    公开(公告)号:US20230349486A1

    公开(公告)日:2023-11-02

    申请号:US17732610

    申请日:2022-04-29

    Applicant: Dresser, LLC

    CPC classification number: F16K37/0083 F16K31/1221

    Abstract: A flow control that is configured to monitor energy use. These configurations may include a controller that delivers a signal to pressurize a pneumatic actuator. This controller may have software that can calculate energy use based on pressure of the signal and, for example, changes in position of a valve. This feature can provide real-time data that operators can use to identify potential problems on their process lines. In one implementation, the operators can flag devices that exhibit energy use that trends away from baseline levels. These devices may have inherent issues that can manifest into larger, more catastrophic problems, potentially causing quality problems with end product or requiring the operating to shut-down the process line altogether.

    DETECTING NOISE ON FLOW CONTROLS
    9.
    发明公开

    公开(公告)号:US20230213115A1

    公开(公告)日:2023-07-06

    申请号:US17566770

    申请日:2021-12-31

    Applicant: Dresser, LLC

    CPC classification number: F16K37/0083 H04R1/42 G01F1/386

    Abstract: A monitor device that is configured for use on flow controls and like industrial devices. The embodiments may include a resonator that is sensitive to vibrations on the flow control. The resonator may generate a non-electrical signal, like pressure waves. This non-electrical signal can transit a conduit to a sensor that can convert the pressure waves into an electrical signal. On valve assemblies, a controller can process the electrical signal to detect potential health or maintenance issues. The controller may, in turn, generate an alert to prompt operators to perform maintenance on the flow control.

    Pilot-operated safety relief valve nozzle

    公开(公告)号:USD987032S1

    公开(公告)日:2023-05-23

    申请号:US29729553

    申请日:2020-03-27

    Applicant: Dresser, LLC

    Abstract: FIG. 1 is a perspective view of one embodiment of a pilot-operated safety relief valve nozzle;
    FIG. 2 is a front side view of the pilot-operated safety relief valve nozzle of FIG. 1;
    FIG. 3 is a back side view of the pilot-operated safety relief valve nozzle of FIG. 1;
    FIG. 4 is a top side view of the pilot-operated safety relief valve nozzle of FIG. 1;
    FIG. 5 is a bottom side view of the pilot-operated safety relief valve nozzle of FIG. 1;
    FIG. 6 is a cross-sectional view of the pilot-operated safety relief valve nozzle of FIG. 1, taken about line 8-8 as shown in FIG. 5;
    FIG. 7 is a perspective exploded view of the pilot-operated safety relief valve nozzle of FIG. 1;
    FIG. 8 is a perspective view of one embodiment of a system including the pilot-operated pressure relief valve nozzle of FIG. 1 and a sensing line inserted into the pilot-operated pressure relief valve nozzle;
    FIG. 9 is a perspective view of another embodiment of a pilot-operated safety relief valve nozzle;
    FIG. 10 is a front side view of the pilot-operated safety relief valve nozzle of FIG. 9;
    FIG. 11 is a back side view of the pilot-operated safety relief valve nozzle of FIG. 9;
    FIG. 12 is a right side view of the pilot-operated safety relief valve nozzle of FIG. 9;
    FIG. 13 is a top side view of the pilot-operated safety relief valve nozzle of FIG. 9;
    FIG. 14 is a bottom side view of the pilot-operated safety relief valve nozzle of FIG. 9;
    FIG. 15 is a cross-sectional view of the pilot-operated pressure relief valve nozzle of FIG. 9, taken about line 19-19 as shown in FIG. 9;
    FIG. 16 is a magnified perspective view of the inlet of the pilot-operated pressure relief valve nozzle shown at location 16 of FIG. 9; and,
    FIG. 17 is a cross-sectional view of the pilot-operated pressure relief valve nozzle of FIG. 9, taken about line 21-21 as shown in FIG. 14.
    The left and right side views of the pilot-operated safety relief valve nozzle of FIG. 1 are not shown, as they are identical to the back side view shown in FIG. 3.
    The left side view of the pilot-operated safety relief valve nozzle of FIG. 9 is not shown, as it is identical to the back side view shown in FIG. 11.
    The broken line shown in all of the drawing figures are for illustrative purposes only and form no part of the claimed design.

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