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Codel EnegyTech - Model 201 -CO Coalmill MillFire
The early detection of coal fires in coal handling systems on coal fired power stations is essential to prevent catastrophic damage to expensive plant and serious injury to personnel. The most reliable and accurate method of detecting coal fires or smouldering is to monitor the carbon monoxide levels within the coal handling plant areas such as silos and mills and to detect rapid increases in concentration. The CODELEnergyTech 201 samples the gas from the critical area through a steel sintered filter mounted in the wall of the chamber. This removes the need for intrusive sampling probes which are prone to wear and are expensive to replace.
The filter is back flushed with compressed air at regular intervals to ensure an uninterrupted flow of sample gas and to minimise maintenance.
The sampled gas requires no further pre-conditioning and is carried via a sample line and pump to the measurement chamber which is equipped with a compact gas analyser. The measurement chamber is trace heated to avoid a build-up of corrosive condensation.
The analyser can re-calibrate automatically to minimise drift and ensure on-going high performance. The system also includes the facility to be checked manually against bottled audit gases.
- Minimal maintenance requirements – No consumables and low cost of ownership
- Rapid, accurate results – for safe operation of coal handling systems
- Analogue & contact outputs – communication to DCS and SCADA systems
- Compact powerful diaphragm pump for constant reliable sampling
- Automated self cleaning filter design & blockage check
- Temperature controlled Measurement Cell for maximum accuracy and long life
- Automated back-flushing of probe filter & sample flow rate check
- Coal Silos
- Coal Mills
- Coal Bunkers
- Grinding Plants
- Coal Bag Houses
- Coal Conveyers
- Operating Principle: Electro Chemical Cell
- Gas Species: Carbon Monoxide (CO) Oxygen (O2)
- Measuring units: ppm
- Ambient Temperature: -20°C to +50°C
- Power supply: 110 – 240V AC 500VA
- Construction: RAL7035 Structure powder coated mild steel sealed to IP66
- Analogue outputs: 2 x 4-20mA current outputs as standard, isolated, 500Ω load max, fully configurable
- from keypad (additional outputs available, see optional items below)
- Logic Outputs:
- 2 x volt-free SPCO contacts, 50V, 1A max, configurable as alarm contacts
- 1 x volt-free SPCO contact, 50V, 1A max, for data valid signal
- Serial Data: RS485 port for Codel diagnostic use
- Display: 32 Character alpha-numeric back-lit LCD)