The center distance of two holes is equal to the center distance of the corresponding venting hole and the water hole of the boiler.
两孔的中心距与相应锅炉通气孔、通水孔的中心距相等;
The measures to control the vapor purging time and flow rate of vapour, enlarge the oil-gas space and increase the number of air hole as well as venting area are given, which can effective...
提出采取严格控制扫线作业时间和扫线蒸汽流量,增大油气空间的体积和增加罐顶通气孔数量和面积等措施,可有效地预防该类事故的发生。
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