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Steve Winkley, Technical Support Manager, Water Flow Products    AquaProbe Training    October 2011© ABB GroupJuly 6, 2012...
AquaProbe© ABB GroupJuly 6, 2012 | Slide 2
AquaProbe Service TrainingBasic Concept                            Insertion Type Flowmeter                            R...
AquaProbe Service TrainingSpecification    Suitable            for pipe diameters from    200mm to 8000mm    Accuracy±2%...
AquaProbe Service TrainingPricing                                 20   Fullbore / Probe Cost Ratio                        ...
AquaProbe Service TrainingCalibration                         ALL AquaProbes are                         Wet Tested      ...
AquaProbe Service TrainingHot Tap Capability                         1. Fit boss or tapping     1   4                     ...
AquaProbe Service TrainingInsertion in Smaller Pipes                         1.   Measure the pipe                        ...
AquaProbe Service TrainingInsertion in Larger Pipes                         1.    Measure the pipe internal               ...
AquaProbe Service TrainingAlignment of Sensor Head                                                   Handlebars           ...
AquaProbe Service TrainingSafe Withdrawl of the Probe – Restraining Clamp                          AquaProbe incorporates ...
AquaProbe Service TrainingTypical Applications                             Permanent                                  Ne...
AquaProbe Service TrainingChoice of Electronic Transmitters                             AquaMaster (AquaProbe II)        ...
AquaProbe Service TrainingInstallation Conditions                             Upstream pipe                              ...
AquaProbe Service TrainingInstallation Conditions - Upstream Straight pipe   Extract from ISO 7145                        ...
AquaProbe Service TrainingInstallation Conditions – Probe Alignment                             Alignment of             ...
AquaProbe Service TrainingInstallation – Measurement of Pipe Internal Diameter                             Measurement of...
AquaProbe Service TrainingInstallation –Pipe Must Remain Full for Good Accuracy                          The pipe MUST BEp...
AquaProbe Service TrainingInstallation – Understanding Importance of Flow Profile                             For a Fullb...
AquaProbe Service TrainingInstallation – Understanding Importance of Flow Profile                             Flow Profil...
AquaProbe Service TrainingInstallation – Understanding Importance of Flow Profile                          Imagine a slice...
AquaProbe Service TrainingInstallation – Understanding Importance of Flow Profile                          Finally,takehow...
AquaProbe Service TrainingInstallation – Understanding Importance of Flow Profile            Fully Developed Turbulent Flo...
AquaProbe Service TrainingInstallation – Understanding Importance of Flow Profile            Fully Developed Turbulent Flo...
AquaProbe Service TrainingInstallation – Understanding Importance of Flow ProfileFlow Profile through a T-Piece           ...
AquaProbe Service TrainingInstallation – Understanding Importance of Flow Profile                                         ...
AquaProbe Service TrainingInstallation – Understanding Importance of Flow Profile                          Click on the pi...
AquaProbe Service TrainingProgramming Electronic Transmitter – Profile Factor                           The ‘Profile Fact...
AquaProbe Service TrainingProgramming Electronic Transmitter – Profile Factor                                             ...
AquaProbe Service TrainingProgramming Electronic Transmitter – Profile Factor                                             ...
AquaProbe Service TrainingProgramming Electronic Transmitter – Profile Factor                                        Profi...
AquaProbe Service TrainingProgramming Electronic Transmitter – Insertion Factor                           The ‘Insertion ...
AquaProbe Service TrainingProgramming Electronic Transmitter – Insertion Factor                          Cross Sectional A...
AquaProbe Service TrainingProgramming Electronic Transmitter – Insertion Factor       With no                      Graph ...
AquaProbe Service TrainingProgramming Electronic Transmitter – Insertion Factor             Cross Sectional Area Blockage ...
AquaProbe Service TrainingProgramming Electronic Transmitter – ABB Toolkit                          Free Download from…   ...
AquaProbe Service TrainingProgramming Electronic Transmitter – ABB Toolkit                          Select ‘AquaProbe’ men...
AquaProbe Service TrainingProgramming Electronic Transmitter – ABB Toolkit                          Input pipe            ...
AquaProbe Service TrainingProgramming Electronic Transmitter – ABB Toolkit                          Select                ...
AquaProbe Service TrainingProgramming Electronic Transmitter – ABB Toolkit                          Select                ...
AquaProbe Service TrainingProgramming Electronic Transmitter – ABB Toolkit                          Use these             ...
AquaProbe Service TrainingMaximum Allowed Velocity                          The maximum allowed flow                      ...
AquaProbe Service TrainingMaximum Allowed Velocity                                                                        ...
AquaProbe Service TrainingMaximum Allowed Velocity                          Effective Insertion Length (in Inches)        ...
AquaProbe Service TrainingMaximum Allowed Velocity                           If the maximum allowed                      ...
AquaProbe Service TrainingVortex Shedding                           The bending or damage to                          the...
AquaProbe Service TrainingVortex Shedding                          Any bluff (non-                          streamlined) b...
AquaProbe Service TrainingVortex Shedding       Flow Direction       AquaProbe tip                          Click on the p...
AquaProbe Service TrainingVortex Shedding                             An example of                             Vortex she...
AquaProbe Service TrainingVortex Shedding                             An example of                             Vortex she...
AquaProbe Service TrainingVortex Shedding                          This effect is not normally a                          ...
© ABB GroupJuly 6, 2012 | Slide 52
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Aqua probe

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Aqua probe

  1. 1. Steve Winkley, Technical Support Manager, Water Flow Products AquaProbe Training October 2011© ABB GroupJuly 6, 2012 | Slide 1
  2. 2. AquaProbe© ABB GroupJuly 6, 2012 | Slide 2
  3. 3. AquaProbe Service TrainingBasic Concept  Insertion Type Flowmeter  Rugged & Robust Construction  ‘Hot Tap’ Capability Good Accuracy over Wide Flow Range Price Virtually Independent of Pipe Size Suitable for Permanent or Temporary Installations No Moving Parts – High Reliability Choice of Transmitters and Power Supply Options© ABB GroupJuly 6, 2012 | Slide 3
  4. 4. AquaProbe Service TrainingSpecification Suitable for pipe diameters from 200mm to 8000mm Accuracy±2% (or ±2mm/sec) of Measured Velocity Accuracy % Volume Flow Accuracy – Refer to ISO 7145 - 1982 2 -2 Bi-Directional For Clean Water Only 0.02 0.1 5 OVERALLACCURACY IS A Flow Velocity m/s PARTNERSHIP© ABB GroupJuly 6, 2012 | Slide 4
  5. 5. AquaProbe Service TrainingPricing 20 Fullbore / Probe Cost Ratio 15 10 5 0 200 400 600 800 1000 1200 1400 1600 1800 2000 Line Size (mm)© ABB GroupJuly 6, 2012 | Slide 5
  6. 6. AquaProbe Service TrainingCalibration ALL AquaProbes are Wet Tested CalibrationRigs Accredited to National Standards Actual 700mm probe calibration +3 +2 Proven Performance +1 % Accuracy 0 -1 -2 -3 0 1 2 3 Velocity m/s© ABB GroupJuly 6, 2012 | Slide 6
  7. 7. AquaProbe Service TrainingHot Tap Capability 1. Fit boss or tapping 1 4 to pipeline 2 2. Fit isolating valve 3. Drill using ‘Hot-tap’ 3 drill set 4. Fit AquaProbe to pipe line© ABB GroupJuly 6, 2012 | Slide 7
  8. 8. AquaProbe Service TrainingInsertion in Smaller Pipes 1. Measure the pipe internal diameter 2. Open Valve 3. Slacken Lock Nut 4. Fully insert probe to far pipe wall 5. Slide positioning collar down and lock in place 6. Fully retract probe 7. Unlock collar and move [ID / 2] – 30 mm. Re-lock in place 8. Insert probe to collar position 9. Tighten Lock Nut© ABB GroupJuly 6, 2012 | Slide 8
  9. 9. AquaProbe Service TrainingInsertion in Larger Pipes 1. Measure the pipe internal diameter 2. Measure to top of valve plate 3. Slacken Lock Nut 4. Insert probe to touch valve plate 5. Slide positioning collar down and lock in place 6. Fully retract probe 7. Unlock collar & move [ID/2] + Valve Plate offset + pipe thickness + 30 mm 8. Re-lock collar 9. Insert probe to collar position 10. Tighten Lock Nut© ABB GroupJuly 6, 2012 | Slide 9
  10. 10. AquaProbe Service TrainingAlignment of Sensor Head Handlebars Ensure the AquaProbe ‘Handlebars’ are aligned with the flow direction Flow Direction This places the sensor electrode axis perpendicular to the flow direction axis Electrode Axis© ABB GroupJuly 6, 2012 | Slide 10
  11. 11. AquaProbe Service TrainingSafe Withdrawl of the Probe – Restraining Clamp AquaProbe incorporates a safety clamp which enables the operator to withdraw the device from the line (while pressurised) without fear of injury When the lock nut is released, a pressurised main can propel the probe shaft outwards at high speed. The clamp restricts the travel of the probe shaft, enabling safe withdrawal from the line© ABB GroupJuly 6, 2012 | Slide 11
  12. 12. AquaProbe Service TrainingTypical Applications  Permanent  Network Management  Leakage Monitoring  District Metering  Temporary Installations  Surveys  Profiling  Distribution Investigation  Checking in-situ fullbore flowmeters© ABB GroupJuly 6, 2012 | Slide 12
  13. 13. AquaProbe Service TrainingChoice of Electronic Transmitters  AquaMaster (AquaProbe II)  Submersible locations  Mains or battery operation  Local indication  Pulse output  MagMaster (AquaProbe I)  First choice for all other applications  Local indication  Pulse & mA outputs© ABB GroupJuly 6, 2012 | Slide 13
  14. 14. AquaProbe Service TrainingInstallation Conditions  Upstream pipe conditions need to be good  25 to 50 diameters (Ref ISO7145)  Poor conditions can be tolerated by the use of ‘flow profiling’  Measurement of pipe diameter CRITICAL  Location of AquaProbe is important© ABB GroupJuly 6, 2012 | Slide 14
  15. 15. AquaProbe Service TrainingInstallation Conditions - Upstream Straight pipe Extract from ISO 7145 Min Upstream Straight Length Expressed as Multiples of Diameter Mean Point Centre Line 90 Elbow or ‘T’ 50 25 Several 90 Bends (Coplanar) 50 25 Several 90 Bends (Not Coplanar) 80 50 Cone 18 - 36 deg 30 10 Diffuser 14 - 28 deg 55 25 Fully Open Butterfly Valve 45 25 Fully open Plug Valve 30 15© ABB GroupJuly 6, 2012 | Slide 15
  16. 16. AquaProbe Service TrainingInstallation Conditions – Probe Alignment  Alignment of probe is important )  Programming of ) transmitter is ) CRUCIAL  TRUE FOR ANY INSERTION PROBE ) )© ABB GroupJuly 6, 2012 | Slide 16
  17. 17. AquaProbe Service TrainingInstallation – Measurement of Pipe Internal Diameter  Measurement of Pipe Internal Diameter is CRUCIAL to accuracy e.g. 700mm nominal pipe size Transmitter programmed as 700mm Actual diameter = 707mm (e.g. +1%) Area of 700mm pipe = 0.3848451 m2 Area of 707mm pipe = 0.3925805 m2 Error in reading = - 2% There are also secondary effects due to the variation 3.5 in Profile and Insertion mm factors between the actual and programmed pipe sizes© ABB GroupJuly 6, 2012 | Slide 17
  18. 18. AquaProbe Service TrainingInstallation –Pipe Must Remain Full for Good Accuracy The pipe MUST BEpipe will cause all This area of empty KEPT FULL at times to ensure accurate measurement errors in the measurement© ABB GroupJuly 6, 2012 | Slide 18
  19. 19. AquaProbe Service TrainingInstallation – Understanding Importance of Flow Profile  For a Fullbore Sensor the velocity measurement is an average of the velocity across the whole CSA of the pipe in the plane of the electrodes  For AquaProbe the velocity is a POINT measurement  The flow velocity in the whole pipe is calculated from this point measurement therefore…  …the Flow profile MUST be known© ABB GroupJuly 6, 2012 | Slide 19
  20. 20. AquaProbe Service TrainingInstallation – Understanding Importance of Flow Profile  Flow Profile is known by; 25 – 50 Dia m eters  Virtue of the amount of upstream pipework Fully Developed Turbulent Flow Profile Mean Velocity Vector  Or Rapidly Changing Velocities Flat Part Of Curve  Profiling the pipe  TRUE FOR ANY 1.722 m/s INSERTION PROBE 2.00 m/s Max Velocity Vector© ABB GroupJuly 6, 2012 | Slide 20
  21. 21. AquaProbe Service TrainingInstallation – Understanding Importance of Flow Profile Imagine a slice through a straight section of water pipe… If you could ‘see’ the flow of the water you would notice that; The water at the walls of the pipe was hardly moving at all Moving away from the pipe wall the flow rapidly begins to get faster The water flowing through the centre section of the pipe is moving quickest© ABB GroupJuly 6, 2012 | Slide 21
  22. 22. AquaProbe Service TrainingInstallation – Understanding Importance of Flow Profile Finally,takehow Dots’ to water in a ‘profile’ of the flow within the second Then plot a section ofproduce that section travels over 1 pipeline First, ‘Join the far the the pipe The ‘profile’ shows the flow velocity distribution in different areas of the pipe The diagram above shows a typical ‘Fully Developed Turbulent Profile’. This shape is typical in long, straight, full pipes© ABB GroupJuly 6, 2012 | Slide 22
  23. 23. AquaProbe Service TrainingInstallation – Understanding Importance of Flow Profile Fully Developed Turbulent Flow Profile Mean Velocity Vector (@1/8th pipe ID) Maximum Velocity Vector (@ pipe centreline) Mean Velocity Vector (@7/8th pipe ID) 2.00 m/s 1.71 m/s 0.00 m/s Maximum Velocity = 2.00 m/s Mean Velocity = 1.71 m/s© ABB GroupJuly 6, 2012 | Slide 23
  24. 24. AquaProbe Service TrainingInstallation – Understanding Importance of Flow Profile Fully Developed Turbulent Flow Profile 1/8th Insertion point. Rapidly changing Velocity (prone to errors if insertion point is not exactly correct or installation has slightly less straight pipe) Centreline Insertion. Stable velocity, preferred point (errors are small if insertion point is not exactly correct or installation has slightly less straight pipe) 7/8th Insertion point. Rapidly changing Velocity (prone to errors if insertion point is not exactly correct or installation has slightly less straight pipe) 0.00 m/s© ABB GroupJuly 6, 2012 | Slide 24
  25. 25. AquaProbe Service TrainingInstallation – Understanding Importance of Flow ProfileFlow Profile through a T-Piece Obviously placing any flowmeter within this area causes big problems Flow through a T piece produces a distorted profile with accelerated flow on the outside of the exit leg and even a re-circulation zone where the flow actually travels backward!© ABB GroupJuly 6, 2012 | Slide 25
  26. 26. AquaProbe Service TrainingInstallation – Understanding Importance of Flow Profile  This chart shows why such long upstream lengths are required for a point measurement device (like AquaProbe)  Uneven and ‘under developed’  The ‘fully turbulent profile developed at exit from bend turbulent profile’  Even and ‘fully is not properly established for developed’ small lengths of turbulent profile straight pipework at entry to bend© ABB GroupJuly 6, 2012 | Slide 26
  27. 27. AquaProbe Service TrainingInstallation – Understanding Importance of Flow Profile Click on the picture below to view the movie© ABB GroupJuly 6, 2012 | Slide 27
  28. 28. AquaProbe Service TrainingProgramming Electronic Transmitter – Profile Factor  The ‘Profile Factor’ is used to adjust the point velocity measured by the probe into….  The AVERAGE FLOW VELOCITY in the pipe© ABB GroupJuly 6, 2012 | Slide 28
  29. 29. AquaProbe Service TrainingProgramming Electronic Transmitter – Profile Factor Centreline Insertion Measured Flow Velocity = 2.00 m/s x So we use the Profile Factor 0.8550 . But! The Average flow velocity = = 1.71 m/s 1.71 m/s  Profile Factor changes slightly with pipe size 2.00 m/s 0.00 m/s 1.71 m/s  Profile Factor can be precisely calculated for fully developed turbulent profile  Use ‘ABB Toolkit’ software for calculation© ABB GroupJuly 6, 2012 | Slide 29
  30. 30. AquaProbe Service TrainingProgramming Electronic Transmitter – Profile Factor 1/8th Insertion (or 7/8ths Insertion) Measured Flow Velocity = 1.71 m/ s x So Profile Factor 1.0000 . Average flow velocity = = 1.71 m/s 1.71 m/s  For Fully Developed Turbulent Profile AND Mean 2.00 m/s 0.00 m/s 1.71 m/s Insertion Point, Profile Factor = 1.0000  No adjustment is needed  You are already measuring the average velocity!© ABB GroupJuly 6, 2012 | Slide 30
  31. 31. AquaProbe Service TrainingProgramming Electronic Transmitter – Profile Factor Profile Factor vs Pipe Size 0.875 0.87 0.865Profile Factor 0.86 0.855 0.85 0.845 200 400 600 800 1000 1200 1400 1600 1800 2000 2200 Pipe Size (mm)© ABB GroupJuly 6, 2012 | Slide 31
  32. 32. AquaProbe Service TrainingProgramming Electronic Transmitter – Insertion Factor  The ‘Insertion Factor’ is used to compensate for 2 effects;  1) The BLOCKAGE of part of the pipe area by the shaft of the AquaProbe itself 2)The DISTORTION that the probe shaft causes to the flow profile© ABB GroupJuly 6, 2012 | Slide 32
  33. 33. AquaProbe Service TrainingProgramming Electronic Transmitter – Insertion Factor Cross Sectional Area Blockage (increases flow velocity)  With no AquaProbe inserted the flow has the whole pipe cross section to pass through  When the AquaProbe is inserted it blocks part of the cross section of the pipe. The flow has less area to pass through. So for the same flow rate, the flow velocity increases© ABB GroupJuly 6, 2012 | Slide 33
  34. 34. AquaProbe Service TrainingProgramming Electronic Transmitter – Insertion Factor  With no Graph showing 3D AquaProbe plot of flow profile inserted, the velocity distribution flow profile is an even shape with AquaProbe Inserted on  However, with centreline the AquaProbe inserted the shaft of the probe distorts the profile shape. This decreases the measured velocity around the probe tip© ABB GroupJuly 6, 2012 | Slide 34
  35. 35. AquaProbe Service TrainingProgramming Electronic Transmitter – Insertion Factor Cross Sectional Area Blockage Flow Profile Distortion (increases flow velocity) (decreases flow velocity around Profile probe)1 /8th C /L 7 /8th   For 7/8th insertion For Centreline Insertion 1/8  The CSA blockage is larger (small increase) small and is the dominant factor  The CSA blockage and Profile Distortion are fairly well (large increase) balanced  The profile distortion is Insertion  Therefore the adjusting relatively smalleris approx decrease) factor (larger decrease) larger (smaller dominant Factorand is the 1  Therefore the adjusting Insertion Factor is smaller/lowerthan 1 larger/higher than 1© ABB GroupJuly 6, 2012 | Slide 35
  36. 36. AquaProbe Service TrainingProgramming Electronic Transmitter – ABB Toolkit Free Download from… www.abb.com/flow > Electromagnetic Flowmeters > Water & Waste Water > MagMaster > Software© ABB GroupJuly 6, 2012 | Slide 36
  37. 37. AquaProbe Service TrainingProgramming Electronic Transmitter – ABB Toolkit Select ‘AquaProbe’ menu© ABB GroupJuly 6, 2012 | Slide 37
  38. 38. AquaProbe Service TrainingProgramming Electronic Transmitter – ABB Toolkit Input pipe Internal Diameter (ID)© ABB GroupJuly 6, 2012 | Slide 38
  39. 39. AquaProbe Service TrainingProgramming Electronic Transmitter – ABB Toolkit Select insertion point© ABB GroupJuly 6, 2012 | Slide 39
  40. 40. AquaProbe Service TrainingProgramming Electronic Transmitter – ABB Toolkit Select transmitter type© ABB GroupJuly 6, 2012 | Slide 40
  41. 41. AquaProbe Service TrainingProgramming Electronic Transmitter – ABB Toolkit Use these Values for configuration© ABB GroupJuly 6, 2012 | Slide 41
  42. 42. AquaProbe Service TrainingMaximum Allowed Velocity The maximum allowed flow velocity for AquaProbe sensors is 5m/s This maximum figure is reduced for longer insertion lengths Therefore very large pipes must have either; Low velocity Or Shorter insertion length (e.g. 1/8th insertion)© ABB GroupJuly 6, 2012 | Slide 42
  43. 43. AquaProbe Service TrainingMaximum Allowed Velocity 130mm Total Effective Insertion Length The insertion length must Valve be calculated from the Valve electrode centreline, to the Tapping point at which the Tapping AquaProbe shaft is clamped inside the probe Insertion Length body This ‘effective insertion length’ must include the height of;  The tapping  The isolating valve  An additional 130mm of the AquaProbe body© ABB GroupJuly 6, 2012 | Slide 43
  44. 44. AquaProbe Service TrainingMaximum Allowed Velocity Effective Insertion Length (in Inches) Effective Insertion Length (in mm)© ABB GroupJuly 6, 2012 | Slide 44
  45. 45. AquaProbe Service TrainingMaximum Allowed Velocity  If the maximum allowed flow velocity for a particular ‘effective insertion length’ is exceeded; The flow reading will become ‘noisy’ There may be excessive vibration of the AquaProbe  The AquaProbe shaft may be bent! Causing irreparable damage© ABB GroupJuly 6, 2012 | Slide 45
  46. 46. AquaProbe Service TrainingVortex Shedding  The bending or damage to the probe shaft is not usually caused by the force of the oncoming water The bending can be caused by the vibration of the probe shaft due to ‘vortex shedding’© ABB GroupJuly 6, 2012 | Slide 46
  47. 47. AquaProbe Service TrainingVortex Shedding Any bluff (non- streamlined) body placed in a flowing medium will oscillate (vibrate) at the frequency vortices are shed from either side of the body ABB Manufacture a Flowmeter based on this principle Triowirl FV4000 - Vortex…© ABB GroupJuly 6, 2012 | Slide 47
  48. 48. AquaProbe Service TrainingVortex Shedding Flow Direction AquaProbe tip Click on the picture above to view the movie© ABB GroupJuly 6, 2012 | Slide 48
  49. 49. AquaProbe Service TrainingVortex Shedding An example of Vortex shedding Cloud formations downwind from an island© ABB GroupJuly 6, 2012 | Slide 49
  50. 50. AquaProbe Service TrainingVortex Shedding An example of Vortex shedding Cloud formations downwind from an island© ABB GroupJuly 6, 2012 | Slide 50
  51. 51. AquaProbe Service TrainingVortex Shedding This effect is not normally a problem, however... The vortex shedding frequency increases with flow velocity When the vortex shedding frequency coincides with the fundamental frequency of the probe shaft then the probe will resonate (vibration feedback) This vibration can cause noise on the measurement and in worse cases can cause damage/bending to the shaft of the probe!© ABB GroupJuly 6, 2012 | Slide 51
  52. 52. © ABB GroupJuly 6, 2012 | Slide 52

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