Picture: FIBER OPTING CABLE INSTALLATION ON A CONVYEOR BELT IN A COAL MINE
MULTIPLE FIRE SAFETY SOLUTIONS NOW CONCEIVABLE WITH NEW FIBER OPTIC TEMPERATURE SENSING TECHNOLOGY
Sperosens (Pty) Ltd is a leading supplier of total fire solutions to the African mining and industrial industry. Solutions include deep mine distributed telemetry systems, carefully chosen fire detection and fire suppression options, catering for each unique customer requirement. The latest innovative AP Sensing Fibre Optic technology offers new solutions to many applications.
Fiber Optic Sensing Technology offers multiple measurement solutions reforming the opportunities of measuring conditions in the mining and industrial industry.
Fibre Optic Technology performs exceptionally well in harsh conditions and is virtually maintenance free. Unsurpassed quality and reliability bring you peace of mind and lower cost of ownership.
DTS (Distributed temperature sensing) for fire detection
Fire in the mining environment can cause damages to valuable assets, down-time and loss of lives. A proper fire protection installation is made more complex when the area is affected by harsh environmental conditions. Industrial facilities frequently produce dirt, dust, humidity and corrosive atmospheres in production and storage areas. Conventional sensor technology often fails and tends to produce false alarms. These technologies require periodic, time-consuming maintenance efforts.
Fiber Optic Sensor Cables can function as linear temperature sensors typically over lengths of several kilometers. The result is a continuous temperature profile along the entire length of the sensor cable.
The use of modern fibre-optic sensors based on DTS (distributed temperature sensing) technology has established itself as a proven method for fire detection and temperature measurement. A passive fibre optic cable provides accurate temperature measurements along the length of i.e. a conveyor belt, which enables effective and cost-effective monitoring of even very long conveyor routes. Fires and overheating, which can occur during operation and lead to serious damage and long downtimes, are quickly detected and localized to within one-meter accuracy. The necessary countermeasures can be quickly activated. Heat detection for hot rollers requires a proper installation of the sensor cable and configuration of the alarmzones and analyses.
AP Sensing’s unique linear heat detection solution reduces operational costs and offers maximum reliability due to early detection for preventative maintenance even under severe conditions.
A fiber optic based DTS (Distributed Temperature Sensing) solution is unaffected by air currents and can accurately determine the size and direction of a spreading fire. No other fire detection system can withstand temperatures up to 1000 °C (1800 °F) without losing monitoring capabilities. Fire-fighting countermeasures can be used effectively before and during the fire event.
Applications include temperature monitoring along conveyor belts, inside sub-stations, switchgear cubicles and MCC rooms, inside coal bunkers, inside power cables, in mining tunnels and on cable racks plus many more.
Advantages are accuracy, ease of installation, immunity to EMC, dirt, dust and humidity and very little maintenance over an exceptionally long lifetime.
The solution integrates easily into your existing management platform (SCADA systems) by dry contacts and/or communicating directly over Ethernet (TCP/IP), using standard protocols.
Our DTS solutions offer robust and reliable asset protection for:
· Conveyor belts
· Cable trays and transformers
· Tank farms, coal storage
· Production areas
· Power plants including NPP
· Refineries and chemical plants
· Offshore platforms
Technology is continually progressing to help address the dangers of underground mining and the complexity of the harsh environments in which the monitoring systems must operate.
Sperosens provides innovation through the design, manufacturing, installation, management and maintenance of safety solutions that enables our clients to focus on their core business.