公开(公告)号：US20240255937A1

公开(公告)日：2024-08-01

申请号：US18566167

申请日：2022-05-16

Applicant: Samson Aktiengesellschaft

Inventor： Andreas Fiebiger ,  Christian Fiebiger ,  Tobias Boll

IPC: G05B23/02

CPC classification number: G05B23/0275 ,  G05B23/0224

Abstract: A method for diagnosing a control/regulating system of a process facility having an actuator for setting a process fluid, may include: providing a diagnostic database with assignment of multiple state causes to a respective set of specified system reference properties, where each system reference property is assigned a necessary condition; providing a test database with an assignment of different diagnostic tests for a specified system reference property; detecting an actual system property of the system; determining a first system reference property, the condition of which is satisfied by the actual system property; for at least one state cause with a set of specified system reference properties, for a second system reference property of the set, detecting whether the condition assigned to the second system reference is certain; and ascertaining a diagnostic test the second system reference property.

公开(公告)号：US11867315B2

公开(公告)日：2024-01-09

申请号：US17190742

申请日：2021-03-03

Applicant: SAMSON AKTIENGESELLSCHAFT

Inventor： Tobias Boll

IPC: F16K37/00 ,  G01M13/003

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.

公开(公告)号：US20210278013A1

公开(公告)日：2021-09-09

申请号：US17190742

申请日：2021-03-03

Applicant: SAMSON AKTIENGESELLSCHAFT

Inventor： Tobias Boll

IPC: F16K37/00

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.