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Safety mechanism by flue gas in a boiler flue gas channel varmekedels
Safety mechanism by flue gas in a boiler flue gas channel varmekedels
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机译:锅炉烟气通道中的烟气安全机制
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摘要
A safety device for butterfly dampers is mounted in the flue duct of oil fired central heaters and operated by a control device susceptible of rotating a damper element actuated by the pressure of fuel oil fed by a pump through an oil supply line to a burner head to open and close the flue duct. A valve device is mounted in the oil supply line between the oil pump and the burner head and controlled by a position indicator associated with the damper device. The rotation of the damper element is transferred to the position indicator who relays the signal to the valve device. Accordingly a rotation of the damper element toward the closing position will actuate the valve device to close the oil supply line and extinguish the heater.
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