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储罐的防火炼厂、转运油库目前在用的、最典型创防火系统有以下几种:①装在罐壁上的泡沫室(见图1);②底部注入管(见图2);③悬吊系统(见图3)。对于浮顶罐,由于浮子的整体性对于密封火焰有明显的影响,所以带来了特殊的问题,后来又在平底浮顶罐上采用了辅助密封系统。虽然良好的辅助密封能够大大降低失火的危险性,但由于密封阻止泡沫到达液面,一旦着起火来也使灭火工作困难而复杂化了。
Tank fire refineries, transit depots currently in use, the most typical fire system has the following: ① installed in the tank wall foam chamber (see Figure 1); ② bottom of the injection tube (see Figure 2); ③ Suspension system (see Figure 3). For floating roof tanks, the overall problem of the floats, which has a significant effect on the sealing flame, posed particular problems and later introduced an auxiliary sealing system on the flat-bottomed floating roof tank. Although a good secondary seal can greatly reduce the risk of fire, sealing can prevent the foam from reaching the liquid level, making it difficult and complicated to extinguish the fire once it ignites.