排油注氮基本内容
Basic contents of oil drainage and nitrogen injection
一旦变压器起火, 重瓦斯和变压器顶盖的热敏探测器均会动作。它们发出的信号使排油系统开始排油, 为搅拌做好准备。紧接着搅拌系统启动, 氮气瓶内液氮经减压注入变压器油箱。据介绍, 燃烧可在1~2min内停止。在排油过程中, 油枕与油箱间形成的油流将装在瓦斯继电器前的流量启闭阀关闭,从而避免“ 火上浇油”.
Once the transformer is on fire, both the heavy gas and the thermal detector on the top cover of the transformer will act. The signals they send make the oil drainage system start to drain oil, ready for mixing. After the start-up of the mixing system, the liquid nitrogen in the nitrogen bottle is injected into the transformer tank through decompression. According to reports, combustion can be stopped in 1 ~ 2 minutes. In the process of oil drainage, the oil flow formed between the conservator and the oil tank will close the flow opening and closing valve installed in front of the gas relay, so as to avoid "oiling the fire"