Plate condition tool
    32.
    发明授权

    公开(公告)号:US11654481B2

    公开(公告)日:2023-05-23

    申请号:US17618586

    申请日:2020-06-08

    Abstract: Plate condition tool for the measurement of condition data of slide gate valve plates coupled to the slide gate valve of a metallurgic vessel, said slide gate valve comprising a collector nozzle, said plate condition tool comprising: a) a main body comprising an obturator for obturating at least partially the collector nozzle; b) a gas injecting device comprising a pressure regulator for injecting a gas in the collector nozzle through the obturator; c) a gas flow measuring device for measuring the flow of the gas injected by the gas injecting device d) a controller being communicatively connected to the gas flow measuring device and being configured to receive input data relating to the relative position of the slide gate valve plates; and wherein the obturator comprises a seal holder for holding a collector nozzle seal.

    System and method for detecting deterioration of a control valve

    公开(公告)号:US11613999B2

    公开(公告)日:2023-03-28

    申请号:US16605623

    申请日:2018-04-18

    Abstract: Automatic testing for control valves is provided for diagnosing of actuators, including actuators not equipped with analog or discrete position transmitters. A valve controller confirms steady-state conditions for a turbo-compressor system that includes a control valve in a first position and sends, to an actuator for the control valve, a signal to initiate a partial valve stroke to move the control valve away from the first position. The valve controller receives feedback signals from sensors in the turbo-compressor system and monitors the feedback signals for a change from the steady-state conditions. When the monitoring detects a change from the steady-state conditions within a defined time period, the valve controller sends, to the actuator, a signal to return the control valve to the first position. When the monitoring does not detect a change from the steady-state conditions within the defined time period, the valve controller generates an alarm signal.

    Test device and test method for dynamic characteristics of spring-loaded safety valve

    公开(公告)号:US11519818B2

    公开(公告)日:2022-12-06

    申请号:US16767418

    申请日:2019-06-17

    Abstract: A test device and a test method for dynamic characteristics of a spring-loaded safety valve are mainly used for testing opening, emission and return seat characteristics of the safety valve. The air pressure stabilizer is used for stably adjusting gas pressure in a pressure vessel. The quick start and stop device is used for controlling opening and closing of the pressure vessel. The pipeline gas mass flow detecting device is used for detecting the mass flow of the gas in a pipeline. The safety valve stem displacement detecting device is used for detecting the displacement change of a safety valve stem. The acquisition system is used for collecting, processing and saving experimental data. The device of the present invention has simple structure and high precision, and provides guarantee for the test of the dynamic characteristics of the safety valve.

    Expansion valve performance monitoring in refrigeration system

    公开(公告)号:US11512884B2

    公开(公告)日:2022-11-29

    申请号:US16868730

    申请日:2020-05-07

    Abstract: A method of detecting electrical failure in a refrigeration system is provided. The method includes determining whether a present superheat of the refrigeration system is between a maximum superheat and a minimum superheat for the refrigeration system, the maximum superheat and the minimum superheat defining a normal operating range. The method also includes detecting an electrical property of an expansion valve assembly of the refrigeration system responsive to the superheat being outside the normal operating range. The method further includes determining whether the expansion valve assembly as experienced an electrical failure based on at least the electrical property. A signal indicating that the expansion valve has experienced an electrical failure is generated based on a determination that the expansion valve assembly has experienced the electrical failure.

    DETECTION APPARATUS AND SERVER
    36.
    发明申请

    公开(公告)号:US20220307947A1

    公开(公告)日:2022-09-29

    申请号:US17840347

    申请日:2022-06-14

    Abstract: A detection apparatus and a server are provided, where the apparatus is configured to detect whether a coolant heat pipe or a solenoid valve on the coolant heat pipe in a device is abnormal, and the apparatus includes a control chip. The control chip can control a working state of the solenoid valve. The control chip can further obtain a temperature of a component in the device. When it is detected whether the coolant heat pipe or the solenoid valve is abnormal, the control chip may obtain a temperature difference of the component in the device when the working state of the solenoid valve is controlled, and relatively conveniently determine whether the coolant heat pipe or the solenoid valve is abnormal based on the temperature difference.

    REGULATOR ASSEMBLY AND TEST METHOD
    37.
    发明申请

    公开(公告)号:US20210341106A1

    公开(公告)日:2021-11-04

    申请号:US17244650

    申请日:2021-04-29

    Applicant: ENTEGRIS, INC.

    Abstract: Regulator assemblies can be tested using test fluids selected to have a molecular weight about that of a selected fluid to be dispensed from a fluid storage and delivery vessel including the regulator assembly. The test fluid can be a single gas or a mixture. The test fluid can have a molecular weight of between 80% and 110% of the molecular weight of the selected fluid dispensed from the fluid storage and delivery vessel. Regulator assemblies tested in this manner can pass evaluation when they show fewer than two spikes on the initiation of flow of the test gas. These regulator assemblies can be installed into fluid storage and delivery vessels, particularly for storage and delivery of pressurized fluids.

    SYSTEM FOR TESTING A VALVE
    38.
    发明申请

    公开(公告)号:US20210199214A1

    公开(公告)日:2021-07-01

    申请号:US17271070

    申请日:2019-08-23

    Applicant: Inline Test AS

    Abstract: A portable system (100) for testing a valve (3) in a process plant. At least one upstream (102) or downstream (104) connector permits fluid contact to a respective upstream isolation valve (2) or a downstream isolation valve (4). A summation technique enables detection and quantification of a small leakage (20, 40) through either isolation valve (2, 4) during testing or certification of the valve (3). A portable computer (110) runs a controller (120) for automatic testing or certification. The controller (120) supports branching into separate diagnostic routines depending on measurements from sensors (122, 124). A security system (130) ensures reliable and confidential measurement data, and facilitates certification. Areas of use include chemical factories, offshore platforms for producing hydrocarbons and treatment plants aboard ships.

    Rig management system for analyzing a pump valve of a hydraulic fracturing system

    公开(公告)号:US10890061B2

    公开(公告)日:2021-01-12

    申请号:US16110684

    申请日:2018-08-23

    Abstract: A rig management system is disclosed. The rig management system may gather, from a set of sensors, data that includes: vibration data related to vibration of a valve associated with a pump of a hydraulic fracturing rig during operation of the pump, and pump speed data related to a speed of the pump during operation of the pump. The rig management system may process the data to identify a trend related to the vibration data, wherein the vibration data has been normalized based on the pump speed data. The rig management system may determine a remaining useful life of the valve based on the trend and threshold data that identifies a set of thresholds related to the vibration of the valve. The rig management system may determine that the remaining useful life satisfies a threshold. The rig management system may schedule an operation to be performed on the valve.

    Establishing termination criteria for a partial-stroke test of a fluid driven safety valve, and determining the proper functioning of a fluid driven safety valve

    公开(公告)号:US12181371B2

    公开(公告)日:2024-12-31

    申请号:US17773453

    申请日:2020-10-30

    Abstract: A method is proposed for establishing termination criteria for a partial stroke test on a safety valve, including: a) A partial stroke test is carried out when the safety valve is operational. b) Position of the valve member and pressure in the drive fluid are recorded. c) A first relation is derived, which relates position of the valve member, time, pressure of the drive fluid, and/or control deviation to one another. d) This relation is defined as a safety valve reference curve. e) A second relation is defined, which has a predetermined distance from the reference curve. f) Termination criterion include: If the partial stroke test is repeated on the same valve, the same data are recorded and a third relation is derived for the reference curve, the partial stroke test is not passed if the third relation has a greater distance to the reference curve than the second relation.

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