消防控制柜在同时接收到感温探测器报警信号和重瓦斯报警信号后,本装置可以自动或手动启动消防,首先,快速排油阀打开,将变压器油箱顶部热油迅速排出,释放压力,防止油箱爆炸,降低油位防止燃油溢出。由于变压器油的流动使断流阀关闭,切断油枕的补油通道,防止火上浇油。同时排油阀开信号、断流阀关信号送到消防控制柜。排油数秒后,充氮阀、氮气释放阀依次打开,高压氮气经减压后从油箱底部注入变压器,强制热冷油交换,使油温迅速降至闪点以下。同时氮气覆盖油面,降低氧气浓度,使油面的明火在60s内迅速熄灭。之后氮气被连续注入油箱至少10min以上,使变压器充分冷却,防止复燃。
The fire control cabinet when it receives temperature detector alarm signal and the gas alarm signal, the device can automatically or manually start the fire, first of all, the quick oil discharge valve is opened, the transformer tank top oil discharged rapidly, release the pressure, to prevent the tank explosion, reduce the oil level to prevent spillage of fuel. Because of the flow of transformer oil, the shut-off valve is closed, and the oil supply passage of the oil pillow is cut off to prevent the oil from adding fuel to the fire. Meanwhile, the oil drain valve opens the signal and the shutoff valve closes the signal and sends it to the fire control cabinet. Oil discharge after a few seconds, the release of nitrogen, nitrogen valve valve open, high pressure nitrogen through reducing pressure from the tank at the bottom of the cold oil injection transformer, forced heat exchange, the temperature quickly fell to below the flash point. At the same time, nitrogen covered the oil surface, reducing oxygen concentration, so that the oil surface flame rapidly extinguished in 60s. After the nitrogen is continuously injected into the tank at least above 10min, the transformer is cooled sufficiently to prevent the resurgence of.