电磁式燃气紧急切断阀额定流量统计分析  

Statistical Analysis of Rated Flow of Electromagnetic Gas Emergency Shut-off Valve

作　　者：严荣松 郭宏伟 张文 高文学 翟军 户英杰 YAN Rongsong;GUO Hongwei;ZHANG Wen;GAO Wenxue;ZHAI Jun;HU Yingjie

机构地区：[1]中国市政工程华北设计研究总院有限公司城市燃气热力研究院,天津300384 [2]国家燃气用具质量检验检测中心,天津300384

出　　处：《煤气与热力》2025年第1期I0013-I0016,共4页Gas & Heat

基　　金：天津市重点研发计划项目“极端气候下城市燃气阀门设施运行可靠性评估的技术开发”(22YFZCSN00120)。

摘　　要：对4种公称尺寸共322个电磁阀样品的额定流量进行了测量,绘制出4组样本的修正箱线图。4组样本的额定流量测试值呈现显著差异,存在异常值。将剔除了异常值的额定流量测试值作为正态性检验数据,计算得到样本1、2服从正态分布,样本3、4不服从正态分布。4组样本的额定流量样本平均值及均值置信区间右端点均小于CJ/T 394—2018《电磁式燃气紧急切断阀》额定流量规定值,表明现有的电磁阀额定流量不符合标准的规定。考虑到当前制造水平,给出电磁式燃气紧急切断阀额定流量推荐值。The rated flows of 332 solenoid valve samples with 4 nominal sizes were measured,and the revised boxplots of 4 groups of samples were drawn.The rated flow test values of 4 groups of samples show significant differences,with outliers present.The rated flow test values with outliers removed are used as normality test data,and it is calculated that samples 1 and 2 follow a normal distribution,while samples 3 and 4 do not follow a normal distribution.The average values and the right end point of the confidence interval of the rated flows of 4 groups of samples are both lower than the rated flows specified in Electromagnetic Emergency Shut-off Valve for Gas(CJ/T 394-2018),indicating that the rated flow of the existing solenoid valve does not meet the requirements of the standard.Considering the current manufacturing level,the recommended rated flow for electromagnetic gas emergency shut-off valves is provided.

关 键 词：电磁式燃气紧急切断阀 额定流量 K-S法检验 置信区间 

分 类 号：TU996.7[建筑科学—供热、供燃气、通风及空调工程]