Pyroban launches PCS 2 explosion proof engine control system at OTC
Written by Molokini
Written on Tuesday, 22 May 2012
Pyroban has launched a new explosion proof diesel engine control system at OTC 2012 in Houston, Texas. PCS 2™ works in conjunction with the typical Pyroban kit and helps ensure maximum safety when diesel engines are used in hazardous areas offshore.
The new PCS 2 from Pyroban acts as the “brain” of the explosion proof safety system and links into the control system of a complete well service unit. It can be used on any electronically controlled engine, it is ATEX 94/9/EC and IECEx certified and has five principle shutdown features.
In the event of an engine overspeed condition, typically at about 2,300rpm, a switch triggers both the fuel shut-off and the Pyroban air intake shutdown valve to ensure that the engine shuts down.
Rob Double, from Pyroban, describes the overspeed condition. “If flammable gas is present in the atmosphere, the engine can suck the gases in. Gas mixed with air and diesel fuel can lead to the engine running out of control at elevated speed resulting in catastrophic failure of the engine. It can also lead to flashbacks through the inlet or backfires in the exhaust which could ignite the surrounding atmosphere. PCS 2 is designed to ensure this never happens.”
Similarly, if the exhaust gas temperatures reach 195ºC, the water temperature reaches 105ºC or the oil pressure drops, the fuel is shut-off bringing the engine to a controlled stop. In emergency situations there is also an emergency stop that stops the fuel and also triggers the air intake shutdown valve.
“Well service equipment all over the world is powered by diesel engines and many of them are used in hazardous areas,” he says, explaining that PCS 2 is ideal for nitrogen vaporiser pumps, surface preparation equipment, cementing units, coiled tubing power-packs, high pressure fluid pumps and air compressors, which are all driven by diesel engines.
Pyroban is well known for supplying complete explosion proof diesel engine kits that help prevent an engine from being the source of an ignition from hot surfaces, engine overspeed or sparks. A typical Pyroban kit includes an exhaust gas cooler, a shutdown valve to prevent engine overspeed and flame from the inlet, flame and spark arrestors, safety solutions for all electrics, a safe turbocharger and other safety critical components. An alternator, battery and radiator can also be added to the kit.
PCS 2 was shown for the first time at OTC 2012 on the Pyroban stand supported by an animation that explained the system’s capabilities. This can now be viewed online at www.pyroban.com/
For more than 40 years, Pyroban’s business has been safety and the prevention of explosions, and the company is well known for providing safety solutions for oil and gas customers all over the world. The company provides hazardous area consulting, explosion proof components, explosion proof diesel engine kits, packages, solutions and systems, training and service support.
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NOTES TO EDITORS
Pyroban Group Ltd provides explosion proof safety and environmental solutions for industry world-wide. The company was founded in 1972 with manufacturing facilities in the UK, Northern Europe, Southern Europe, Asia-Pacific and China with regional sales and service centres.
Pyroban Group Ltd is a wholly owned division of Caterpillar Inc.
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