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小常識——為什么不能用塑料桶裝汽油

2021-11-02  來自: 蘭州市銀百合塑料制品有限公司 瀏覽次數:217

用塑料桶裝汽油發生燃燒或爆炸事故,近年來屢見不鮮。為什么用塑料桶裝汽油會發生燃燒或爆炸呢?


這是因為:塑料桶是采用聚乙烯、聚氯乙烯等高分子絕緣材料做成的。而汽油屬于一級甲類易燃液體,其閃點小于28℃,爆炸下限小于10%。用塑料桶裝汽油在灌裝、倒出或振動過程中,汽油與塑料桶壁互相摩擦,會產生靜電。實踐證明,用一個125升的塑料桶裝滿汽油,在倒出時,汽油在流量大、流速快的情況下,可能產生2000伏以上的電位差。當積聚的電荷達到數值,就可能放電產生靜電火花,引燃汽油或汽油與空氣的混合氣體,發生燃燒或爆炸。因此為了安全,不要用塑料桶裝汽油。




中石油知識:為什么說地球物理勘探是尋找油氣的主力軍和排頭兵


在灌裝類似汽油等易燃液體過程中都要考慮靜電的消除問題。靜電是一種看不見、摸不著的東西。我們從生活實踐中知道,不導電的物體在相互摩擦時會產生靜電,這種靜電壓達到幾百、幾千,甚至上萬伏。帶有靜電的物體、人體,在條件下就可放電產生電火花。這種電火花的能量很小,人們一般感受不到。但是,許多危險物品遇到這種電火花就有可能燃燒、爆炸。所以,凡是用管道輸送易燃、可燃液體時,應嚴格控制流速,不可太快,采取接地措施,如果使用塑料管尤應注意。用鐵桶灌裝汽油等易燃、可燃液體時,應讓鐵桶等與大地直接接觸,因摩擦而產生的靜電可以立即通過地線導出。減少沖擊,把灌裝軟管或鐵管插到容器的底部或使易燃液體沿器壁淌下。還可在汽油中摻入一些其他物質,如0.05%的脂酸鎂或2%的醋酸,以增加汽油的導電率。在危險場所工作的人員盡量不穿化纖服裝;有的容易產生靜電的機器設備應有良好的接地措施。

蘭州塑料桶,蘭州塑料化工桶,蘭州塑料方桶,甘肅塑料桶生產,蘭州塑料桶廠家

李經理:13893416023

電   話:0931-7351176

地   址:甘肅省蘭州市西固區清水街

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