Pulsar Process Measurement Mike Ward Alistair MacKinnon Stirling - PowerPoint PPT Presentation

Pulsar Process Measurement Mike Ward Alistair MacKinnon Stirling Technical Engineering Pulsar Process Measurement

Agenda • Intelligent pump controller benefits. • Severn Trent Water Case Study.

Intelligent Pump Control Benefits Include:- • Time to spill. • Pumped Volume. • Auto Resets. • Pump Blockage and Burst Rising Main indication. • Tariff Management. • Pump efficiency.

Severn Trent Water A Case Study

History • Framework supplier for many years. • Solving problems such as: • Noise interference from VSD’s. • False echo recognition. • Long range applications.

History • Approached to develop:  Time to spill.  Auto reset.  Burst rising main and pump blockage.  Real time flow.  2 year project.

Quantum Overview Pumps/Valves 10 Volt Free Alarms etc Contact Outputs 4-20mA Output Up to 40M 4-20mA Output integral Ultrasonic head. RS485 Modbus / Supply Profibus V0 & V1 Options Communications 110-230v & Data Logging AC 24v DC (optional) 7 Digital Inputs RS232 configuration Port Flowswitches/ Overloads etc

Time to Spill

Time To Spill GIVE A ACCURATE TIME PREDICTION BEFORE A SPILL OCCURS

Time To Spill Outflow Outflow Inflow Inflow ON ON 30 MINUTES 30 MINUTES TO SPILL TO SPILL ALARM ALARM

Auto Resets

Auto Reset INTELIGENT AUTO RESET FOR TRIPPED PUMPS

Auto Reset PUMP 1 Outflow Consecutive Pump Fails in Inflow Pump Fails 24hr period 1 1 2 2 3 X 2 1 Pump Failed Alarm

Pump Blockage/Burst Rising Main.

Blocked Rising Main BLOCKED RISING MAIN CAUSING A REDUCED PUMPING RATE

Blocked Rising Main Time 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 BURST Pumping Rate BLOCKAGE OFF ON Alarm Status 1 ALARM!!! 0

Burst Rising Main BURSTS RISING MAIN CAUSING A INCREASE IN PUMPING RATE

Burst Rising Main Time 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 BURST Pumping Rate BLOCKAGE OFF ON Alarm Status 1 ALARM!!! ALARM!!! 0

Real Time Flow

Real Time Flow • 10 sites selected out of 200 Quantum’s already installed. • 2 x 4-20mA outputs monitored for flow and level. • Magflow also recorded as a comparison. • Site data recorded by 8 channel logger to give better resolution. • 6 months worth of data recordings.

Real Time Flow • .7 l/s average between magflow and Quantum. • Recordings over storm and dry weather conditions. • Recorded at 2 minute intervals.

Conclusions • To install a magflow cost £9,500 with flow meter chamber. • Quantum Installation £3,500. (including auto reset function and time to spill alarm) • Auto reset monitored over 2010 in 230 pumping stations. • Successful reset day = no pump failure with an auto reset and the number did not exceed 3. • Working on an average call out cost of £120. • Cost saving = £1,189 per site. • Additional cost saving with Tariff Management. (not yet quantified)

Thank You Any Questions