Averaging Pitot tube KTM Deltapascal ®
Cost reduction projects for power consumption and pumping equipment service life. Metering of steam, hot liquids and ultrahot smoke emissions
Benefits:
- Saving 5-15% on energy costs at the replacement of constriction devices with a Pitot tube due to pressure drop decrease from 20-30 % to 5-8 %;
- Increase of the steam turbine or pump service life and equipment life of 20% due to incoming pressure reduction;
- Reduction of expenses by 4 times for the flow meter assembly/disassembly, calibration, shipping costs, exchange fleet, no repair expenses;
- Integrated computing device in explosion-proof housing, ready for volume calculations without additional equipment;
- In-process assembly/disassembly;
- Simulation calibration;
- Temperature and pressure flow compensation;
- Metering on exhaust ducts of complex shape;
- Metering of high temperature gases to +710 °С to 25 MPa;
- Metering of air emissions on pipelines with diameters to 15 m;
- Calibration interval – 4 years, service life – 18 years.
METROLOGY AND TECHNICAL CHARACTERISTICS
| Parameter name | Parameter value |
| Nominal diameter of pipeline DN, mm | from 25 to 2950 |
| Measuring part material | AISI 316L / 03Х17Н14М3 |
| Volume flow rate measurement range, m³/h: | |
| – fluid | from 0,35 tо 358000 |
| – gas | from 0,7 tо 4,8∙10 6 |
| – steam | from 0,7 tо 6,9∙10 6 |
| Operating medium temperature, ºС | from – 196 tо + 710 |
| Operating medium excess pressure, MPa | tо 25 |
| Maximum pressure drop, kPа | 300 |
| Relative measurement error, % | |
| – of volume and mass flow rate | ±0,5; ±0,7; ±1,0; ±1,5 |
| – of volume and mass flow rate at simulation calibration | ±2,0 |
| Calibration interval, years | 4 |
| Ambient temperature, °С | from- 40 tо + 60 |
| IP degree of protection according to GOST 14254 (IEC 60529) | IP66/67 |
| IPU explosion-proof marking | 1Ex db e [ia Ga] IIC T6 Gb X |
| Outputs and interfaces: | – frequency (time period signal TPS)/pulse output;
– analog configurable output, current loop with support of HART; – RS-485 with support of Modbus RTU and Modbus ASCII; – Ethernet with support of Modbus TCP; – analog input for temperature and pressure sensors, current loop with support of HART |
| Direct current power voltage, V | from 12 to 30 |
| Input power, W, not more than | 15 |
| Mean time to failure term, h, not less than | 100 000 |
| Service life, years | 18 |
| Name | Appearance | Pressure | Temperature | Diameter |
|
By mounting on a pipeline |
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| Flange |  |
to 25 MPa | to +710 °С | To 2 950 mm (optionally to 15 000 mm) |
| Retractable |  |
to 10 MPa | +500 °С | to 1200 mm |
| Rotate-lock |  |
to 10 MPa | +500 °С | to 2950 mm |
|
By IPU location |
||||
| Integral | |
to 25 MPa | +120 °С | to 2 950 mm (optionally to 15 000 mm) |
| Integral with dividing units (medium cooling units) |  |
+300 °С | ||
| Separate |  |
to +710 °С | ||
MEASUREMENT ELEMENT SIZE OPTIONS
| Measurement element width | Pipeline diameter | Diameter of a manifold for mounting |
| 8 mm | From 25 до 60 mm | 15 mm |
| 12 mm | From 50 to 150 mm | 20 mm |
| 25 mm | From 100 tо 800 mm | 32 mm |
| 44 mm | From 400 to 2950 mm (optionally to 15 000 mm) | 50 mm |
Video