your name presentation hua aun tan date - eocp
TRANSCRIPT
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Your Name
Presentation
Date
Why are actuators important and are they making your
life easier?
Hua Aun Tan
September 16th, 2020
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Outline
• Actuator fundamentals/considerations
• Types of actuation
• Electrification
• Connected smart diagnostics
• Valve actuation examples
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Your Name
Presentation
Date
Actuator Fundamentals
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What is an Actuator?
• An actuator provides motive force to a valve to all a valve to stroke open or
closed.
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Actuator Considerations
• What Valve are you mounting this to?
– Linear or Rotary
– Mounting
• What do you want the actuator to do?
– Control or Isolation
– Fail action – Open/Close/Last/Manual Override
– Stroke Speed
• What are the constraints of actuation?
– Motive Force – Air/Hydraulic/Electric/Power Gas
– Size and Weight
– Cost
– Environmental Impact
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Designed for Automation?
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Mounting on difficult valves
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Isolation valve for underground oil/water separator
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Custom Actuation Retrofits - Haney Main No.2 Valve Chamber Upgrades
Before After
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Actuator Considerations
• What Valve are you mounting this to?
– Linear or Rotary
– Mounting
• What do you want the actuator to do?
– Control or Isolation
– Fail action – Open/Close/Last/Manual Override
– Stroke Speed
• What are the constraints of actuation?
– Motive Force – Air/Hydraulic/Electric/Power Gas
– Size and Weight
– Cost
– Environmental Impact
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Actuator – No Fail Action
Double-acting actuators require pneumatic force in both
directions to drive a change in valve position.
Valve Opening Stroke Valve Closing Stroke
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Actuator – Fail Action
Spring-return actuators provide true reliable
mechanical fail safe positioning
Valve Opening Stroke Valve Closing Stroke
• Other forms of motive force for
failure:
– Accumulator
– Volume tank
– Battery Backup/UPS
– Super Capacitors
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Actuator Considerations
• What Valve are you mounting this to?
– Linear or Rotary
– Mounting
• What do you want the actuator to do?
– Control or Isolation
– Fail action – Open/Close/Last/Manual Override
– Stroke Speed
• What are the constraints of actuation?
– Motive Force – Air/Hydraulic/Electric/Power Gas
– Size and Weight
– Cost
– Environmental Impact
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Space Constraints
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Your Name
Presentation
Date
Types of Actuation
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Your Name
Presentation
Date
Pressure loaded actuators
• Pneumatic
• Gas powered
• Hydraulic
• Water powered
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Your Name
Presentation
Date
Rotary Rack & Pinion Actuators
• Constant torque through stroke (Double Acting)
• Compact and lightweight
• Simple and easy to maintain
• Economical choice
• Medium cycle on/off applications
• Typically pneumatic only
T= F x d
F
Torque
Rotation0 90
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Your Name
Presentation
Date
Scotch-Yoke Actuators
• Increased torque at start and end
• Robust design
• Well suited for butterfly and ball valves
• Typically used for larger valve sizes
• Can be designed for most pressure sources
T= F x dTorque
Rotation0 90
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Your Name
Presentation
Date
Scotch Yoke – Modular & Scalable
Power Module Drive Module Spring Module
G130T52
SR3
•
in Qatar
•
spring end
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Your Name
Presentation
Date
Scotch Yoke – Morin Water Hydraulic (WH)
Standard Options utilizing SS base material allow for water powered actuators up to 160 psi
• Due to construction of actuator utilizing SS components, Morin S and B-WH designs allow for water as the power source vs. air or gas.
• Seals are modified to include a T Seal on the piston and lip seals on the piston rods
• Often there is a reliable source of water pressure vs. air pressure: waste water treatment, offshore fire water systems, fire protection.
• Water facilities in warm climates often use water pressure to save air compression costs
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Hydraulic Actuators
• Much higher pressure than air
• Much smaller bore
• Require hydraulic power supply (or hand pump)
• Potential for leaks
• Much high torque or thrust output
• Reliable
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Bettis PressureGuard – Emergency Shutdown System
Pump to Open, Pilot to Close
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Bettis PressureMatic Pilot
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Your Name
Presentation
Date
Electrification – Electric Actuators
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Electric Actuators – Basic Attributes
• Sizes range from 100 in.lbs to in
excess of 1,000,000 in.lbs
• Rotary and linear applications
• DC, 1PH or 3PH AC power supply
• Fail safe Battery, UPS, Spring,
Electro-Hydraulic
• Lower installation costs
• Ideal for applications where air
supply is not available or practical
• Small envelope for larger valves
• Powerful diagnostics available
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Different types of Electric Actuators
Fisher easy-Drive Baumann SV-1 Bettis EM
Bettis RTSKeystone EPI 2
Bettis XTE3000
Bettis M2CP
Bettis EHO
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General Electric Actuators
Motor Gears
Electric Motor Manual Override
Handwheel
Position Sensing
Torque Sensing
Drive nut Collar
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Rotary/Linear Operation
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Linear/Multi-Turn Drive Sleeve
Bronze Stem nut
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Stem tube / cover
• Recommended – Use stem covers for linear actuators
• Protects drive sleeve from dirt and water ingress.
• Protects operators from rising stem
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Gear Train – Worm Gear
• Self-locking
• Fail last
• Cold rolled steel on
aluminum bronze
• Ability to replace
drive nut from above
• ¼ Turn or multi-turn
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Gear Train – Spur Gears
• Back Drivable
• Electric brake or fail indeterminate
• Gears can be plastic
• ¼ Turn or 180 degree rotation
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Gear Train – Other Types
Planetary / Differential Gear
Rack and pinion drive
Linear Ball Screw Gear
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Auxiliary Gears
Worm Gear
Bevel Gear
Spur Gear
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Electrification – Fail Safe Electric
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Spring Return – Torsion Spring
• Spur gear actuator
• Electric brake & release
• ¼ Turn
• Limited to 3” to 4” valve
• Discrete & Analogue control
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Spring Return – Belleville Springs
• Linear or ¼ Turn
– Linear 5620 lb.f (up to 4“ stroke)
– ¼ Turn up to 17,700 in.lb (18“+ butterfly)
• 0.2% control accuracy with modulating option
• Adjustable speed
• Up to SIL3 & PST (partial stroke testing)
• Non-intrusive Bluetooth
• Data logging
• HART & Modbus RTU
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Spring Return – Belleville Springs
Base CM03 Actuator
Motor
Active Brake
Eddy Current Brake
Shaft Output
Linear Ball Screw Gear
Rack and pinion drive
Adjustable Mech. Endstop
Spring Assembly
Planetary / Differential Gear
Worm Gear
(Self-locking)
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Spring Return – Belleville Springs
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Electrification – Electro-Hydraulic
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The Evolution of Electro-Hydraulics
Stand-alone
Bolt-on
Integrated
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Spring Return – Electro-Hydraulic
Control Enclosure
Motor
Hydraulic Manifold
Hand Pump
Reservoir
Sight Level Gauge Local Display and Operation
G Series Hydraulic Spring Return Actuator
Circuit Breaker/ Disconnect
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Electrification – Control
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Control Types
• Use switches, printed circuit boards
and wires
• Configuration is ‘hard wired’
• To set limits you must open the
electrical compartment (‘intrusive’)
• Uses microprocessors on printed
circuit boards
• Configuration is programmed
• Limits set without opening electrical
compartment (‘non-intrusive’)
Electro-Mechanical Digital
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Benefits of Electro-Mechanical
• Modular controls package
• Non-integral and integral starters
• Controls are located in large, hinged controls compartment
• Same controls package for multi-turn and quarter-turn
• Ease of troubleshooting
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Bettis M2CP - Electro-Mechanical Actuator
• M2CP Design has been in production since 1986
• All the components are modular (removed individually or on the
backplane)
• Options are available on various boards
• Units are easily field serviceable and a robust design
• Preferred Electric for most Pipeline Companies in NA
• Multiple Supply Voltages DC, 1Ø, 3Ø
• Various motor sizes from 1/16 HP to 8 HP
• On / Off and Modulating (1,200 starts per hour)
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Legacy Brews Actuator
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Benefits of Digital
• Digital and non-intrusive commissioning and configuration
• Digitally stored configurations
• Configurable alerts alarms
• LCD configurable Display
• More protocols for communication
• Smart capabilities
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Bettis XTE3000
• Features:– Intelligent and versatile actuator with a wide range of
torque and speed for on/off & control
– Non-intrusive setup via local interface, Bluetooth, or DCMlink
• Range:– Multi-turn torque up 1,440 Nm (1,062 ft lbs)
– Quarter-turn torque up to 63,000 Nm (46,466 ft lbs)
– Couple to available external gears to extend upper limits of torque and thrust
• Certifications:– FM, FM-C, ATEX, IECEx, NEPSI, CU-TR, INMETRO, CCOE,
KOSHA
– IP68, NEMA 4, 4X, 6
– AWWA (Q2 FY20)
• Protocols:– Modbus, HART, FOUNDATION Fieldbus, PROFIBUS,
LonWorks™
XTE3000
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Bettis XTE
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Your Name
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Smart Capabilities - Access to data
• Actuators can be connected via
wireless mesh
• Configuration, Monitoring and
Diagnostics can be done remotely
• Saves on personnel time and
provides realtime access to data
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Benefit of Smart Capabilities
Configure
Monitor
Diagnose
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Smart Capabilities - Configure
• Unified user interface for
electric actuators
• Easy to use configuration and
calibration
• Central location to save, copy,
import/export and store
configurations, profiles and
diagnostic data.
• Communicates via multiple
networking protocols
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Smart Capabilities - Monitor
• Real time and remote
monitoring
• Monitor dashboard gives users
quick access to asset health
and status
• Up to 53 Alarms can be
reported on the dashboard in
easy to see colour
• Live Trending of Critical
Parameters
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Your Name
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Status & fault indication options:
Remote Indication Features
• OPEN Limit• CLOSE Limit• OPENING• CLOSING• MOVING• LOW BATTERY• S/S in LOCAL• S/S in STOP• S/S in REMOTE• OPEN Torque Trip• CLOSE Torque Trip• OVER TORQUE – Either Direction• Communication Failure• Local ESD
• VALVE STALL• VALVE MOVED MANUALLY• LOST POWER• MOTOR OVERLOAD• LOST PHASE• OPEN Inhibit Signal Present• CLOSE Inhibit Signal Present• LOCAL ‘ESD’ Signal Present• ‘ESD’ ACTIVE• LOST ANALOG Signal• ACTUATOR FAIL• EFM (Electronics Fault Monitor)• Initialization Failure• Normal Operation
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Diagnostics
• Alarm Log
• Torque Profile
• Torque Archive
• Operation Log
– Motor Starts
– Number of
Strokes
– Motor Run Time
• Hardware Diagnostics
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Benefit: Predict & Act on Failures Before They Occur
INSTRUMENT ALERT
Time
Healt
h
FAILURE BEGINS
Failure Condition Acceleration
FAILURE
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Benefit: Predict & Act on Failures Before They Occur
Earlier Identification = Incremental Value
INSTRUMENT ALERT
Time
Healt
h
FAILURE BEGINS
Predictive Maintenance Approach
• Time-Series Analysis
• Online (In-Situ) Diagnostics
• Analytics
FAILURE
Traditional Maintenance Approaches
• Vibration
• Acoustics
• Process Variables
• Offline Diagnostics
• Preventive Maintenance
Cost of Repair
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Cost Savings Through Predictive Maintenance
Maintenance ImpactPredictiveMaintenanceBushings Thrust PadBack Thrust Washer
$X
PreventativeMaintenanceBushings Thrust PadFront Thrust WasherFront Impeller Wear RingBack Impeller Wear RingBack Thrust WasherImpeller RepairShaft.25 Torque Ring.1 Casing.2 Containment Shell
$5X
ReactiveMaintenanceBushings Thrust PadFront Thrust WasherFront Impeller Wear RingBack Impeller Wear RingBack Thrust WasherImpeller RepairShaftTorque RingCasingContainment Shell
$15X
Operations Impact
Lost ProductionRework
$40X
COST
Operations ImpactRange: 1x to 160x Cost of Pump Source: Olin Chemical Corp.
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Summary
• Always consider your valve type when looking for a new actuator
• Then consider your required functionality and limitations
• There are many options available in the market specific to your needs.
• Finally consider your plant and processes as a whole as there are lots of new
technologies that can increase the efficiency and effectiveness of your
maintenance and operations.
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join the conversation
Contact Me
Hua Aun Tan – Technical Specialist
Phone
(778) 835-7164
24/7 Support
+1 (877) 276-6404