| 充氮灭火装置的工作原理 |
| 添加时间：2018/6/26 15:48:09 浏览次数： |
| 充氮灭火装置的工作原理 Working principle of nitrogen extinguishing fire extinguishing device 充氮灭火装置是以冷却燃烧介质，减少燃烧面供氧两种物理原理进行快速灭火的变压器专用灭火装置。 Nitrogen fire extinguishing device is a special fire extinguishing device for transformers, which is based on two physical principles, namely, cooling combustion medium and reducing the oxygen supply of combustion surface. 充氮灭火装置在自动运行状态下，以重瓦斯信号及靠近着火点的温度探测器两个信号逻辑“与”作为判别火灾发生的启动信号，充氮灭火装置在接到火灾信号后，利用连接在变压器与装置间的排油管道立即从油箱顶部排除部分热油释压，同时通过断流阀切断油枕补油通道，制止油流外溢。其次是为氮气注入时为其覆盖燃烧油面提供空间。 In the automatic running state, two signal logic "and" of the heavy gas signal and the temperature detector near the ignition point are used as the starting signal to distinguish the fire from the fire. After receiving the fire signal, the nitrogen extinguishing device excludes the part of the oil tank from the top of the tank with the oil pipe connected between the transformer and the device. The hot oil release pressure is cut off, and the oil filler oil passage is cut off by the stop valve, so as to stop the overflow of oil flow. The second is to provide space for covering the burning oil surface for nitrogen injection. 在实施排油若干秒后，充氮灭火装置以一定流量的氮气从底部注入油箱，强迫油液上下搅动，迅速将油面降至闪点以下，并使油面含氧量减少无法维持燃烧而灭火。 After the execution of oil for a few seconds, the nitrogen gas filled fire extinguisher injected the tank from the bottom with a certain flow of nitrogen, forced the oil to stir up and down, quickly lowered the oil surface to below the flash point, and reduced the oxygen content of the oil surface to keep the fire and extinguish the fire. |
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