Скачать презентацию Ultrasonic Clamp-on Flow Meter Ultrasonic Flow Meter Rolf
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Ultrasonic Clamp-on Flow Meter Ultrasonic Flow Meter Rolf Preikschas 06. 04. 20 11 GF Piping Systems
New Ultrasonic Clam-on Flowmeter Portaflow 220 06. 04. 20 11 GF Piping Systems Portaflow 330 Ultraflo 3000/4000 2
Manufactured by Micronics made for GF 06. 04. 20 11 GF Piping Systems
How it works Basically there are two different methods for measuring: TOFD = Time of Flight Diffraction TT = Transit Time ----------------------------------------------------Doppler method ----------------------------------------------------Both ways to measure are base on Echo – Impulse measuring Run-time measuring is used for clean mediums with particles < 3% and particle size of < 100µ Doppler method is generally used for dirty mediums with particles or air bubbles. 06. 04. 20 11 GF Piping Systems 4
Transit Time Measuring - Theory § When ultrasound is transmitted through a liquid the speed at which the sound travels through the liquid is accelerated slightly if it is transmitted in the same direction as the liquid flow and decelerated slightly if transmitted against it. § The transit time method compares the needed time to transfer the sound from A to B and from B to A. § When the sound properties of the medium and the pipe material are known, is it possible to calculate the flow rate of the transit time difference of the sound. Sensor Block A Flow Sensor Block B Liquid Pipe wall These time difference is very small. A d 100 pipe with a velocity of 1 m/sec the difference is 30 nanoseconds (30 x 10 -9 sec) § Is the flow velocity known, the volumetric flow can be calculated for a given pipe diameter. 06. 04. 20 11 GF Piping Systems 5
Transit Time Measuring § It‘s possible to measure flow between 0. 1 m/s - 20 m/sec. § Optimize the metering window and take the pipe properties (wall thickness, pipe dimension and pipe material) into consideration. § Various metering points guarantee reliable measuring while using low electricity. § The sound signal is received/sent 16 times the average is then calculated. 06. 04. 20 11 GF Piping Systems 6
Transit Time Measuring - Typical Signal: Copper wire d 13, 30 l/min 06. 04. 20 11 GF Piping Systems 7
Transit Time Measuring - Extended Signal 06. 04. 20 11 GF Piping Systems 8
Transit Time Measuring, Metering Points 06. 04. 20 11 GF Piping Systems 9
Operating Modes Reflex Mode: Sensor Block A § This is the mode most commonly used. § The two transducers are attached to the pipe in line with each other and the signals passing between them are reflected by the opposite pipe wall. Flow Sensor Block B Liquid Pipe wall § The separation distance is calculated by the instrument in response to entered data concerning the pipe and fluid characteristics. § Normally this mode is used for pipes with a diameter of >d 32 - d 315. 06. 04. 20 11 GF Piping Systems 10
Operating Modes Reflex Double- Tripple Mode: § These operating modes are used for small (or very small) pipe diameters. Generally we use the double mode. When there’s too weak signal or when it’s a very small diameter we use the tripple mode. § The two transducers are attached to the pipe in line with each other and the signals passing between them are bouncing off the opposite pipe wall (2 or 3 times). Sensor Block A 06. 04. 20 11 GF Piping Systems B Liquid Flow Pipe wall Sensor Block § The separation distance is calculated by the instrument in response to entered data concerning the pipe and fluid characteristics. § Normally this mode is used for pipes with a diameter
Operating Modes Diagonal Mode: Sensor Block § This operating mode is used for pipes with big diameter. A Pipe wall § In this mode the transducers are located on opposite sides of the pip eand the signal will be received without reflection. So it‘s sent/received directly. § The separation distance is calculated by the instrument in response to entered data concerning the pipe and fluid characteristics Liquid Flow Sensor Block B § Normally this mode is used for pipes with a diameter of >d 315. 06. 04. 20 11 GF Piping Systems 12
Clamp-On Flow Meter Ideal for flow measuring § clean or cleaned medium. § medium with a particle share <3% and a particle size < 100µ § non pulsating flow § fully developed flow profiles § fully filled pipe, no gas pockets Applications § Water Treatment § Water Utilities § Chemical Process Industry § Energy Economy § Energy Generation § Pharma Industry § Semiconductor Industry § Petro chemistry Industry § Food & Beverage 06. 04. 20 11 Medium § Chemical § Water / pure water § River water § Coolant § Water-Glycol-mixture § Hydraulic oil § Diesel and fuel oil § Heavy oil § Oil manufacture § Food & Beverage GF Piping Systems 13
General Clamp-On Flow Meter General Data § § § § § 06. 04. 20 11 Bi-directional measuring between -20 m/s up to +20 m/s Accuracy: +/-0. 5 - 3% of the measured value Automatic Reynolds compensation Totalizer for bi-directional Measuring 10 languages as standard No Recalibration needed 4 -20 m. A and pulse output Standard IP 54 resp. IP 65 Battery charger with different plugs 110 V – 240 V Display – 64 x 240 Pixel GF Piping Systems 14
Technical Data PF 220 - PF 330 Operation: Battery charger: 110 V – 240 V ± 10% with plug EU, GB, US Metering range: 0. 1 m/sec – 20 m/sec bi-directional Units: Velocity: m/sec, ft/sec Volume: l/s, l/min, l/h, gal/min, gal/h, USgal/min, USgal/h, Barrel/d m³/s, m³/min, m³/h Tolerance:
Data logger PF 330 Data logger: Memory space: Text or graphic Interval: 5 sec - 1 hour Start / Stop: Button or automatic Output: Portaflow 330 20 memory spaces with names for settings and measured values and/or life broadcast per RS 232/USB Record: 06. 04. 20 11 Real time recording, 98, 000 metering points RS 232 / USB direct to printer or Software Portograph II GF Piping Systems 16
Technical Data U 3000 – U 4000 Supply: Metering Range: 0. 1 m/sec – 20 m/sec bi-directional Units: Velocity: m/sec, ft/sec Volume: l/s, l/min, l/h, gal/min, gal/h, US USgal/min, USgal/h, Barrel/d m³/s, m³/min, m³/h Tolerance:
Data logger U 4000 Data logger: Memory place: Text or graphic Interval: 5 sec till 1 hour Start / Stop: Button or automatic Output: U 4000 20 memory places with names for settings and measured values and/or live broadcast per RS 232/USB Record: 06. 04. 20 11 Real time recording, 198, 000 metering points RS 232 / USB direct to printer or Software Portograph II GF Piping Systems 18
Transducer set „A“ As standard for dimension d 13 - d 115 sound frequency 2 MHz Transducer set „B“ As standard for dimension d 50 - d 2000 - d 1000 for PF 220 sound frequency 1 MHz Transducer set „C“ As option for dimensions d 1500 - d 5000 sound frequency 0. 5 MHz § Temperature -20ºC till +135ºC § Optional HT Transducer set-20ºC till +200ºC § The Transducer set must always be used/ changed as a pair. 06. 04. 20 11 GF Piping Systems 19
Preparation, Installation in general § § § § Mind installation distance Mind installation angle Pipes need to be degreased Remove paint and/or loose rests of paint Best possible smooth surface Clean transducer Apply gel along the middle (ca. 3 mm) of the transducer § Do not tighten the transducer too strong 06. 04. 20 11 GF Piping Systems 20
Installation 06. 04. 20 11 GF Piping Systems 21
Operation Keypad with dual function keys § numerical data entry § change of flow unit § fast access to menu buttons On / Off Change Flow unit Enter and scroll Quick access to menu buttons 06. 04. 20 11 GF Piping Systems 22
Menu Structure Main menu: turn on and then press enter ð Quick Start ð View/ Edit Site Data 20 location possible to save ð Data Logger ð Setup RS 232 / USB ð Setup instrument ð Read flow 06. 04. 20 11 GF Piping Systems 23
Main Menu Quick start: ð Select dimension units: inch or mm ð Outside diameter ð Pipe wall thickness ð Pipe lining thickness ð Select pipe wall material ð Select pipe lining material (if applicable) ð Select fluid type ð Enter temperature of liquid C Mechanically set the correct sensor distance ð Enter : show flow rate or ò Scroll: sensor menu ð Sensor-settings: A-ST, B-ST, D ðSensor mode: Reflex, Diagonal, Double-, Tripple Reflex ð Temperature of liquid ð Exit 06. 04. 20 11 GF Piping Systems 24
Main Menu View Edit Site Data: You can save up to 20 different sites ðChoose from list of sites ð Site name ð Dimension units: inch or mm ð Pipe outside diameter ð Pipe wall thickness ð Pipe lining thickness ð Pipe wall material ð Lining material ð Sensor set: A-ST, B-ST, D ð Sensor mode: Reflex, Diagonal, Double-, Tripple Reflex ð Fluid type ð Save current site & read flow ð Delete this site ð Download & save current site ð Exit 06. 04. 20 11 GF Piping Systems 25
Main Menu View Logged Data : ð Choose from list of sites ð View log as text ð View log as graphic ð Graph Y axis max ð Download log ð Clear log ð Exit 06. 04. 20 11 GF Piping Systems 26
Main Menu Setup RS 232 / USB : ð Handshaking: Xon/Xoff ð Baud rate ð Data-Bits ð Stop-Bits ð Parity ð New line ð Printer test ð Exit 06. 04. 20 11 GF Piping Systems 27
Main Menu Setup Instrument: ð Set Date&Time ð Calibrate 4 -20 m. A ð Pulse Output ð Backlight ð Factory settings ð Change language ð Exit 06. 04. 20 11 GF Piping Systems 28
Quick access keys Options: The menu point “options“ can only be chosen while displaying flow rate ð Data review ð Zero cut-off: minimum flow ð Set zero flow: ð Damping: average ð Totaliser: On / Off ð Reset + Total ð Reset - Total ð Calibration factor: Multiplication for the display ð Roughness factor ð Diagnostics: Important for the analysis of the errors ð Exit 06. 04. 20 11 GF Piping Systems 29
Quick access keys Logger: The menu point “logger“ can only be chosen while displaying flow rate ð Unit: only display ð Log name: only display ð Log data to ð Logging Interval: 5 sec – 1 hour ð Start Date &Time ð Stop Date &Time ð Remaining time: only display ð Memory rollover: stop or overwriting ð Graph Y-axis max ð View log as text ð View log as graph ð Start now ð Set auto-start ð Clear Log ð Select items to log ð Extended intervals ð Exit 06. 04. 20 11 GF Piping Systems 30
Quick access keys Comms: The menu point “comms“ can only be chosen while displaying flow rate ð Handshaking: Xon/Xoff ð Baud rate ð Data-Bits ð Stop-Bits ð Parity ð New line ð Printer test ð Exit 06. 04. 20 11 GF Piping Systems 31
Quick access keys 4 -20 m. A: The menu point “ 4 -20 m. A“ can only be chosen while displaying flow rate ð m. A Output Reading: Only display ð Output range: 4 -20 m. A, 0 -16 m. A ð Units: Only display ð Flow at max. output ð Flow at min. output ð Output m. A for error ð Exit 06. 04. 20 11 GF Piping Systems 32
Quick access keys Pulse: The menu point “Pulse“ can only be chosen while displaying flow rate ð Flow units: Only display ð Output: On/Off ð Vol(ume) per pulse ð Pulse width (ms) ð Exit 06. 04. 20 11 GF Piping Systems 33
Portograph II is a specially developed software for the ultrasonic clamp on device to observe, save and record the measured data § Automatic communication between the device and PC § Automatic diagram design of data § Data also available in text-form § Change of the metering units and automatic recalculation § Data transfer also to excel § Reverse construction of data which was saved before § Records in real-time § Compatible with Windows data § Help Menu 06. 04. 20 11 GF Piping Systems 34
Portograph II 06. 04. 20 11 GF Piping Systems 35
Portograph II 06. 04. 20 11 GF Piping Systems 36
Portograph II 06. 04. 20 11 GF Piping Systems 37
Portograph II 06. 04. 20 11 GF Piping Systems 38
Portograph II 06. 04. 20 11 GF Piping Systems 39
Advantages Clamp-on Technology § No process downtime during installation § Cost savings – No down time § Very easy and economic installation § Cost savings at big dimensions § Adoptable for liquids with different viscosities and densities § Chemical resistant due to no contact with the medium § Ideal also for high purity liquids § Optimal for sterile applications § No limit in pressure range with no pressure loss 06. 04. 20 11 GF Piping Systems 40
Ultrasonic Flow Meter by Micronics made for GF 06. 04. 20 11 GF Piping Systems 41
Other Micronics Equipment Doppler System PF D 550 UF D 5000 06. 04. 20 11 GF Piping Systems 42
Clamp-on Doppler – contaminated medium § If the ultrasonic encounter the moving particle or gas pocket, the system is measuring the complex tone and the frequency change. § The frequency change is proportional to the flow rate, which convert the volume of the flow rate with the inside diameter of the pipe. As a function of the inside diameter of the pipe you can see the flow rate. 06. 04. 20 11 GF Piping Systems 43
Other Micronics Equipment Flow rate – metering system for open canals and half filled pipes AVFM II 06. 04. 20 11 GF Piping Systems Stingray 44
Other Micronics Equipment Pipe thickness meter 8812 § Pipe thickness of 1. 5 mm – 200 mm § Ultrasonic § 10 different materials § With calibration block 06. 04. 20 11 GF Piping Systems 45
Questions? 06. 04. 20 11 GF Piping Systems 46