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1、动力分厂常用气体的物理性质序号名 称密度t=20kg/M3熔点沸点气液比质量标准 优等品一等品合格品引用标准1氧 气1.4291-218.8-182.96798.499.799.599.2GB/T-3863-19952液 氧11403乙 炔1.1747-83-8152098.0GB6819-864丙 烯1.914-185.2-47.719095.0HG/T2661.1-19995丙 烷2.005-187.7-42.229095.0HG/T2661.2-19996二氧化碳0 201.9771.871-78.5-56.5764199.999.799.5HG/T2537-937二氧化碳液体10808
2、工业氮气1.2507-209.86-195.864399.599.598.5GB/T-3864-19969纯 氮99.99699.9999.95GB/T-8978-199610液 氮81011纯氩气1.7838-185.8778199.99GB/T-4842-199512高纯氩气99.999699.999399.999GB/T-10624-199613液 氩141014氢气0.09-25378815液态氢气7116天然气0.743517干燥空气1.293-213-192.3氧气管路流速规定 中压乙炔管路10Mpa 6m/s 0.020.15 Mpa 管内径80mm 8m/s 0.13.0 Mp
3、a 15m/s 高压乙炔管路0.1 Mpa 可根据管系允许压降确定 0.150.25 Mpa 管内径80mm 4m/s引用资料：工业气体手册、机械设计手册、动力工程师手册标准状态g0 与 工作状态流量gv 换算gv=g0(273+t)/2730p g0 标准状态下介质体积流量 NM3/h gv工作状态下介质体积流量 M3/ht 工作状态下介质的温度 p工作状态下介质的绝对压力Mpa液氧、液氮、液氩、液体二氧化碳“气态液态”常用单位换算氧气重量气态液态磅Lb公斤kg立方英尺SCF立方米Nm3加仑Gal升Lit1磅1.00000.453612.0780.31730.10500.39751公斤2.2
4、0501.000026.6320.69960.23150.87621立方英尺气体0.082790.037551.00000.02630.00870.032891立方米气体3.14911.428238.04001.00000.33051.25111加仑液体9.5284.321115.10003.02601.00003.78501升液体2.5171.141630.41000.79950.26421.0000氮气重量气态液态磅Lb公斤kg立方英尺SCF立方米Nm3加仑Gal升Lit1磅1.00000.453613.80300.36270.14810.56051公斤2.20501.000030.420
5、00.79960.32621.23491立方英尺气体0.07250.03291.00000.02630.01070.04071立方米气体2.75701.250638.04001.00000.40801.54431加仑液体6.74503.060093.11002.44701.00003.78501升液体1.78200.808324.60000.64640.26241.0000氩气重量气态液态磅Lb公斤kg立方英尺SCF立方米Nm3加仑Gal升Lit1磅1.00000.45369.67100.25430.08660.39751公斤2.20501.000021.37000.56050.23150.8
6、7621立方英尺气体0.10340.04691.00000.02630.00890.032891立方米气体3.93301.784038.04001.00000.33051.25111加仑液体11.63005.2760112.50002.95701.00003.78501升液体3.07201.393629.71000.78120.26421.0000二氧化碳重量气态液态磅Lb公斤kg立方英尺SCF立方米Nm3加仑Gal升Lit1磅1.00000.45368.74100.22940.11810.44691公斤2.20501.000019.25300.50580.26030.98601立方英尺气体0
7、.11440.05191.00000.02630.01350.05111立方米气体4.35901.977238.04001.00000.51461.94801加仑液体8.47003.842074.04001.94311.00003.78501升液体2.23801.015119.56200.51340.26421.0000可燃气体爆炸极限(爆炸范围、LEL等)气体及蒸汽名称发火温度爆炸极限比重（空气=1）下限VOL%上限VOL%氢 H25604.075.60.7甲烷 CH45375.0150.55乙烷 C2H65153.015.51.04丙烷 C3H82601.57.82.50异丁烷i-C4H1
8、05551.88.02,01戊烷 C5H124702.09.51.56己烷 C6H144555.5441.11己炔 C6H103051.51000.9乙稀 C2H44252.7340.97丙烯 C3H64302.112.53.45苯3651.58.52.05邻二甲苯4651.07.63.66甲醇2336.7362.79乙醇4253.3191.59醋酸甲脂5753.1162.56醋酸乙脂4602.111.53.047汽油2601.0734煤油2100.754.50天然气 LNG5151城市煤气4301液化石油气 LPG2121.52.0硫化氢 H2S4.345.51.19一氧化碳CO60512.
9、5740.97焊接绝热气瓶(液氧、液氮杜瓦罐)规格表规格特性表规格160180200压力MPHPMPHPMPHPVHP容积（升）几何容积176196209204尺寸和（安全阀）开启压力设定值安全阀设定Psig230350230350230350500Mpa1.62.41.62.41.62.43.45直径厘米50.8高度厘米151，3161.3167.1空重公斤113.4126.9117.9136.1126.9145.1170满重(公斤)N2234241253263271280286O2285290309318331339349Ar322325351357375380386CO2303331353354N2O293321343344标准状态下气体体积N2979110810211510893O2120114134127143133123Ar117111130124139130120CO2899910593N2O849410088日蒸发量(%每天)N221.91.852.0O2 Ar1.41.31.21.4CO2 N2O0.50.50.50.5气流(NM3/Hr)N2O2 Ar9.29.210.59.2CO2 N2O2.92.92.92.9
