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1、Flow ControlJSLNG PetroChinaFlowserve PositionerFlow ControlJSLNG PetroChina调节阀辅助设施Flow ControlJSLNG PetroChina阀门定位器阀门定位器l包括电气阀门定位器和气动阀门定位器，用于改善调节阀工作特性，实现正确定位。Flow ControlJSLNG PetroChina阀位开关阀位开关l显示调节阀的上、下限的行程工作位置。Flow ControlJSLNG PetroChina气动保位阀气动保位阀l气源故障时，保持阀门当时的位置Flow ControlJSLNG PetroChina三通、四
2、通电磁阀三通、四通电磁阀l用于实现气路的自动切换和快速保护动作Flow ControlJSLNG PetroChina手轮机构手轮机构l执行机构故障时，可切换进行手动操作Flow ControlJSLNG PetroChina空气过滤减压器空气过滤减压器l作为气源净化、调节压力之用。Flow ControlJSLNG PetroChina贮气罐贮气罐l气源中断时，由其取代，使阀能够继续工作一段时间。Flow ControlJSLNG PetroChinaPositioner?Positioner? Why use aWhy use aFlow ControlJSLNG PetroChinaWh
3、at Positioners do:What Positioners do:2. Permit greater accuracy2. Permit greater accuracy1. Operate springless actuators1. Operate springless actuators8. Provide simple adjustments including split ranging8. Provide simple adjustments including split ranging7. Change characteristics7. Change charact
4、eristics4. Handle high air pressures4. Handle high air pressures5. Increase speed of operation5. Increase speed of operation6. Permit faster speed of response6. Permit faster speed of response3. Maintain position regardless of changing forces3. Maintain position regardless of changing forces9. Provi
5、de remote communications via digital signals9. Provide remote communications via digital signalsFlow ControlJSLNG PetroChina 1. A signal port1. A signal port 2. A supply port2. A supply port 3. An exhaust port3. An exhaust portA 3-way design means:A 3-way design means:Flow ControlJSLNG PetroChina A
6、4-way design means:A 4-way design means: 3. A supply port (bottom) 3. A supply port (bottom) 2. A supply port (top)2. A supply port (top) 1. A signal port1. A signal port 4. An exhaust port4. An exhaust portFlow ControlJSLNG PetroChina x Feedback Cylinder Actuator Valve positionPositioner Signalerro
7、r Pilot Valve+ - x x DiaphragmDiaphragm ActuatorActuator SignalSignalValve positionValve positionFlow ControlJSLNG PetroChina FlapperFlow ControlJSLNG PetroChina FlapperFlow ControlJSLNG PetroChina FlapperFlow ControlJSLNG PetroChina FlapperFlow ControlJSLNG PetroChina I/PModule Cylinder actuator wi
8、th 4-way I/P PositionerI/P Module is the only change from pneumatic Beta.I/P Module is the only change from pneumatic Beta.Flow ControlJSLNG PetroChina Signal 3-15 psi 60-150 psiSupplyFlow ControlJSLNG PetroChina InstallationInstallation ConceptsConcepts PositionerPositionerFlow ControlJSLNG PetroCh
9、ina2”2”2”2”3”3”-1”-1”1”1” Stroke LengthsStroke LengthsFlow ControlJSLNG PetroChinaSame rotation angleSame rotation anglefor all strokesfor all strokesFlow ControlJSLNG PetroChinaSlotsSlotsFlow ControlJSLNG PetroChinaFollower PinFollower Pin Follower pin mustFollower pin must be spring loadedbe sprin
10、g loaded to bottom of slotto bottom of slot for air-to-openfor air-to-open top of slot for top of slot for ororTake-Off ArmTake-Off Arm air-to-close.air-to-close.Flow ControlJSLNG PetroChinaL-RL-DBA Beta Positioner Return Spring/Cam MountingFlow ControlJSLNG PetroChina Profile view of Cam Return Spr
11、ing MountingProfile view of Cam Return Spring MountingFlow ControlJSLNG PetroChina AAB BL-RL-R3902639026L-RL-R L-DL-D(Linear Reverse)(Linear Reverse)(Linear Direct)(Linear Direct)(Air-to-open)(Air-to-open)Air-to-extendAir-to-extendJust turn cam overJust turn cam over Linear Actuator CamLinear Actuat
12、or CamAir-to-retractAir-to-retract(Air-to close)(Air-to close)L-DL-DL-DFlow ControlJSLNG PetroChinaI-L-DFlow ControlJSLNG PetroChinaI -L- RFlow ControlJSLNG PetroChina Beta Positioner Installation on Rotary ActuatorsPositioner isPositioner isthe same butthe same butthe cam andthe cam andfollower arm
13、follower armare different.are different.Rotary Valve PositionersRotary Valve PositionersFollower PinActuator Lever ArmCamFollower ArmFlow ControlJSLNG PetroChinaJust turn cam overJust turn cam over Cam Fail Characteristic No. Action Equal Percent Linear 46467 Air-to-Open B C Air-to-Close C B Rotary
14、Actuator Rotary Actuator Standard Standard CamCamC C4646746467B BFlow ControlJSLNG PetroChinaJust turn cam overJust turn cam over Rotary Actuator Rotary Actuator CamCam Cam Fail Linear Characteristic No. Action Fail Open Fail Closed 62406 Air-to-Open ICCW ICW Air-to-Close ICW ICCW“ “Reverse Acting”R
15、everse Acting” ICCWICCWICWICW6420664206Flow ControlJSLNG PetroChina1. Check for pin in correct slot1. Check for pin in correct slot2. Check roller/cam alignment2. Check roller/cam alignment3. Adjust zero and span3. Adjust zero and span4. Plug unused ports4. Plug unused portsCalibrationCalibrationFlo
16、w ControlJSLNG PetroChinaCamRoller BearingFollower ArmCam Cam Starting Starting PositionPosition Cam/Roller AlignmentCam/Roller AlignmentFlow ControlJSLNG PetroChinaFlow ControlJSLNG PetroChinaFlow ControlJSLNG PetroChinaLogix 3200MD SchematicFlow ControlJSLNG PetroChinaFlow ControlJSLNG PetroChinaS
17、ystem Positioning AlgorithmFlow ControlJSLNG PetroChinaFlow ControlJSLNG PetroChinaField TerminationFlow ControlJSLNG PetroChinaFlow ControlJSLNG PetroChinaLocal User InterfaceFlow ControlJSLNG PetroChinaFlow ControlJSLNG PetroChinaGain SwitchFlow ControlJSLNG PetroChinaFlow ControlJSLNG PetroChinaQ
18、UICK-CAL OperationFlow ControlJSLNG PetroChinalThe QUICK-CAL button is used to locally initiate a calibration of the positioner.lPressing and holding the QUICK-CAL button for approximately 3 seconds will initiate the calibration.lA QUICK-CAL can be aborted at any time by briefly pressing the QUICK-C
19、AL button and the previous settings will be retained.Flow ControlJSLNG PetroChina If the Quick calibration switch (be careful not to confuse with the QUICK-CAL button) is set to Auto and the valve/actuator assembly has the necessary internal stops the calibration will complete automatically. While t
20、he calibration is in progress you will notice a series of different lights flashing indicating the calibration progress. Flow ControlJSLNG PetroChina When the lights return to a sequence that starts with a green light the calibration is complete. (see the table X for an explanation of the various li
21、ght sequences) The initial calibration of extremely large or very small actuators may require several calibration attempts. The positioner adapts to the actuator performance and begins each calibration where the last attempt ended. On an initial installation it is recommended that after the first su
22、ccessful calibration that one more calibration be completed for optimum performance.Flow ControlJSLNG PetroChinaLocal control of valve positionFlow ControlJSLNG PetroChinaFlow ControlJSLNG PetroChinaFactory ResetFlow ControlJSLNG PetroChinalTo perform a factory reset, hold QUICK-CAL button while app
23、lying power and all of the internal variables including calibration will be reset to factory defaults. lThe positioner must be re-calibrated after a factory reset. Tag names and other user configured limits, alarm settings, and valve information will also be lost and need to be restored.Flow Control
24、JSLNG PetroChinalWARNING: Performing a factory reset may result in the inability to operate the valve until reconfigured properly.lNotify proper personnel that the valve may stroke, and make sure the valve is properly isolated.Flow ControlJSLNG PetroChinaCommand ResetFlow ControlJSLNG PetroChinaFlow
25、 ControlJSLNG PetroChinaLogix 3200MD Status ConditionFlow ControlJSLNG PetroChinalThe blink codes used to convey the status of the Logix 3200MD digital positioner are described in the following table. (Please refer to Table X: Logix 3200MD Status Condition Codes)Flow ControlJSLNG PetroChina In gener
26、al, any sequence starting with a green light flashing first is a normal operating mode and indicates that there are no internal problems.Flow ControlJSLNG PetroChina Some diagnostic status results are only available with the Advanced or Pro diagnostics option.Flow ControlJSLNG PetroChinaTroubleshoot
27、ingFlow ControlJSLNG PetroChinaFlow ControlJSLNG PetroChinaFlow ControlJSLNG PetroChina High PerformanceHigh Performance Vibration ResistantVibration Resistant Corrosion Resistant Corrosion Resistant Single or Double ActingSingle or Double Acting 3-way Split Ranging Standard3-way Split Ranging Stand
28、ard ReversibleReversible Rugged and DurableRugged and Durable Easy to MaintainEasy to Maintain Interchangeable MountingInterchangeable Mounting Cam CharacterizedCam Characterized Non-interactive AdjustmentsNon-interactive Adjustments Positioner Features:Positioner Features:Flow ControlJSLNG PetroChinaFlow ControlJSLNG PetroChinaFlow ControlJSLNG PetroChina部分资料从网络收集整理而来，供大家参考，感谢您的关注！
