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

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

Aug 13, 2022 30 likes •262 views

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:-

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SLIDE 1

Pulsar Process Measurement

Mike Ward Stirling Technical Engineering Alistair MacKinnon Pulsar Process Measurement

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SLIDE 2

Agenda

  • Intelligent pump controller benefits.
  • Severn Trent Water Case Study.
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SLIDE 3

Intelligent Pump Control

Benefits Include:-

  • Time to spill.
  • Pumped Volume.
  • Auto Resets.
  • Pump Blockage and Burst Rising Main

indication.

  • Tariff Management.
  • Pump efficiency.
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SLIDE 4

Severn Trent Water

A Case Study

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SLIDE 5
  • Framework supplier for many years.
  • Solving problems such as:
  • Noise interference from VSD’s.
  • False echo recognition.
  • Long range applications.

History

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SLIDE 6

History

  • Approached to develop:
  • Time to spill.
  • Auto reset.
  • Burst rising main and pump blockage.
  • Real time flow.
  • 2 year project.
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SLIDE 7

Quantum Overview

10 Volt Free Contact Outputs RS485 Modbus / Profibus V0 & V1 Communications & Data Logging

(optional)

4-20mA Output RS232 configuration Port 4-20mA Output Pumps/Valves Alarms etc Supply Options 110-230v AC 24v DC 7 Digital Inputs Flowswitches/ Overloads etc Up to 40M integral Ultrasonic head.

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SLIDE 8

Time to Spill

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GIVE A ACCURATE TIME PREDICTION BEFORE A SPILL OCCURS

Time To Spill

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Time To Spill

ON

Inflow

ON

Inflow Outflow Outflow

30 MINUTES TO SPILL ALARM 30 MINUTES TO SPILL ALARM

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Auto Resets

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SLIDE 12

INTELIGENT AUTO RESET FOR TRIPPED PUMPS

Auto Reset

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Auto Reset

1

Inflow Outflow

3 2 1 2 1

X 2

Pump Failed Alarm Consecutive Pump Fails Pump Fails in 24hr period

PUMP 1

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SLIDE 14

Pump Blockage/Burst Rising Main.

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Blocked Rising Main

BLOCKED RISING MAIN CAUSING A REDUCED PUMPING RATE

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Pumping Rate Alarm Status 1 Time 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9

BURST BLOCKAGE

ALARM!!!

OFF ON

Blocked Rising Main

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SLIDE 17

Burst Rising Main

BURSTS RISING MAIN CAUSING A INCREASE IN PUMPING RATE

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SLIDE 18

Pumping Rate Alarm Status 1 Time 1 2 3 4 5 6 7 8 9

ALARM!!!

1 2 3 4 5 6 7 8 9

BURST BLOCKAGE

OFF ON

ALARM!!!

Burst Rising Main

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SLIDE 19

Real Time Flow

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SLIDE 20

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.
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SLIDE 21

Real Time Flow

  • .7 l/s average between magflow and

Quantum.

  • Recordings over storm and dry weather

conditions.

  • Recorded at 2 minute intervals.
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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)

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SLIDE 23

Thank You

Any Questions