最后对自旋阀的底钉扎和顶钉扎结构进行了比较。
Spin valve with bottom structure is compared with which with top structure.
工作原理:当管道和水箱内部形成真空时,大气压便会顶开阀盖,大气进入系统内部,平衡系统压力,消除真空影响。
Working principle: when the internal piping and tank vacuum, atmospheric pressure will be the valve cover, air enters the system, balance the system pressure, eliminate the effect of vacuum.
根据国家标准《石油化工企业设计防火规范》(GB50160-92)之规定:“储存甲、乙类液体的固定顶罐,应设阻火器和呼吸阀”。
Flame Arrestor breather valve should be equipped on the top of tank for type A B liquid according to GB50160-92, "Fire prevention code of petrol chemical enterprise design".
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