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根据1987年颁发的蒸汽锅炉安全技术临察觇程(以下简称87规程)第129条规定:额定蒸发量大于0.5 T/h的锅炉,至少装设两个安全阀(不包括省煤器安全阀)。我们在作安全阀自动排汽试验时,发现一些蒸发量≥1 T/h的锅炉,1只安全阀排汽后,尽管加大负荷,另1只安全阀始终跳不起来.查阅这些安全阀计算选取资料,在设计、选取安全阀时,只注意到安全阀总排汽量大于锅炉最大连续蒸发量,单个安全阀排汽量选取偏大;没有
According to Article 129 of the Provisional Regulations on Safety of Steam Boilers issued in 1987 (hereinafter referred to as 87 Code), a boiler with a rated evaporation greater than 0.5 T / h shall be fitted with at least two safety valves (excluding economizer safety valves ). When we made a safety vent automatic exhaust test, we found that some boilers with an evaporation of ≥1 T / h and one safety valve could not always jump despite the increased load. Calculate the selected data, in the design, select the safety valve, only to notice that the safety valve total exhaust gas is greater than the maximum continuous evaporation of the boiler, a single safety valve exhaust gas selection is too large; no