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应用细节
应用细节页
Double-Jointing AUT INSPECTION using PipeWIZARD™
Meets or exceeds API 1104, DNV 2000, OS101, and ASTM E-1961 AUT codes
- Proven and qualified AUT system for double and quadruple jointing at mill, as well as onshore and offshore
pipeline construction
- Safe system: no radiation hazard
- Efficient system: no disruption of normal operation
- Money-saving system: better process control of welding, giving lower reject rates
- Better weld quality with unique system performance
- High defect detection capability
- Extra beams for key areas, such as root passes
- Any weld profile: CRC-Evans, J-bevel, modified J-bevel, V,double V .
- Better productivity
- Wide range of pipe diameters and wall thicknesses
- Fast scanning speed: 100 mm/s
- Cycle time of approximately two minutes for 36-inch pipe welds
- Rapid data interpretation (virtually in real-time)
PipeWIZARD phased-array automated ultrasonic inspection system (AUT).
Lack of fusion detection confirmed by macrophotography.
Ultrasonic zone discrimination is a key feature of AUT with PipeWIZARD.
System Description
- Tomoscan FOCUS™ 32:128 phased-array unit
- Motor drive unit
- Industrial PC
- Downsized probe pan containing two linear arrays
- Mechanized drive clamping onto welding band
- 25 m umbilical cable connecting probes, encoder, power, and couplant lines to instrumentation
- Instrumentation console including PC, pulsers, and motor drive
- Couplant containers, pump, and reclamation unit
Probe Pan Description
- Probe pan contains two linear arrays.
- Extra modules are available for transverse or dedicated TOFD inspections.
- Couplant is pumped water or water-methanol in cold climates.
- Encoder running on welding band gives circumferential position.
Software Description
- Custom PipeWIZARD™ software running on Microsoft® Windows NT® for data acquisition, analysis, and
reporting
- Automatic marking of indications exceeding rejection threshold to assist the operator
- Inspection reports and list of defects adapted to client requirements
- Automatic saving to two separate media in real time
- Automated inspection sequence
| PipeWIZARD | | Pipe diameter | 50 mm to 1424 mm (2 in. to 56 in.) | | Pipe wall thickness | 6 mm to 36 mm (0.25 in. to 1.5 in.) or more depending on wall thickness and addtional
transducers. (Additional transducers may be required.) | | Array | Two linear 7.5-MHz, 60-element, 75 mm long | | Scan speed | 100 mm/s (4 in./s) | | Scanner size | 250 mm (L) x 120 mm (W) x 75 mm (H) | | Scanner weight | 2 kg (4 lb) | | Additional probe pan slots | Extra slots for eight conventional transducers for transverse defects or additional scans | | Weld profile | All common welds: CRC-Evans, J-bevel, manual, V, double V, X, etc. (any profile in
principle) | Ultrasonics | | Method | Multichannel zone discrimination or custom scans as specified | | Zone size | <1 mm possible using increased number of zones.
(Maximum number of zones is 32 per view, and four views are available for a total of 128.)
ASTM E-1961 zone size is typically 1 mm to 3 mm. | | Setup | Automatic with file loading | | Automated setup | From file of weld profile or from predefined weld profile and appropriate parameters | | Display | 1. Conventional twin-gate strip chart display or
2. Increased number of zones for improved defect sizing or
3.Multiple B-scans for improved defect characterization or
4.Customized combination of displays Coupling and circumferential position channels included TOFD
recommended | | Calibration and codes | ASTM E-1961, API 1104, or DNV2000-OS-F101 custom specifications | | Additional modules | For transverse defects, thick walls, dedicated TODF, and customized scans | Umbilical | | Umbilical length | Typically 25 m (80 ft) | | Manufacture | Armored cable 5 cm (2 in.) in diameter | | Contents | 128 ultrasonic cables, one motor drive cable, one encoder cable, and waterline for
coupling | Phased Arrays | | Instrumentation | Standard Tomoscan FOCUS 32:128 system
(32 simultaneous pulsers, 128 channels) | | Bandwidth | 1 MHz to 20 MHz | | Maximum pulsing rate | 20 kHz PRF | | Pulser delay | Adjustable from 0 µs to 25 µs in 2-ns increments | | Pulse output | Amplitude from 50 V to 200 V, width from 20 ns to 500 ns | | Receiver delay | Adjustable from 0 µs to 25 µs in 2-ns increments | | Receiver DAC | Up to 30 dB/µs on each element slope before summing | | Input filters | Four user-selectable ranges:
None
500 kHz to 5 MHz
2 MHz to 10 MHz
5 MHz to 15 MHz | | Input impedance | 50 W | | Inspection mode | Pulse-echo, transmit-receive (programmable) | | Dynamic range | 56 dB/channel | | Computer interface | Both RS-232 and Ethernet™ standard | | Focal law storage | Up to 1024 different laws | | Power requirement | 85 V to 265 V, 47 Hz to 63 Hz | | Operating temperature | 0°C to 50°C |
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