空分设备下塔、上塔、粗氩塔的不同精馏工况影响氩馏分流量的因素不同,使得氩馏分流量的调节方法也不同。以马钢20000 m 3/h液氧内压缩流程空分设备与35000 m 3/h氧气外压缩流程空分设备为例,详细分析空分设备下塔、上塔、粗氩塔不同精...空分设备下塔、上塔、粗氩塔的不同精馏工况影响氩馏分流量的因素不同,使得氩馏分流量的调节方法也不同。以马钢20000 m 3/h液氧内压缩流程空分设备与35000 m 3/h氧气外压缩流程空分设备为例,详细分析空分设备下塔、上塔、粗氩塔不同精馏工况对氩馏分流量的不同影响因素,介绍20000 m 3/h空分设备热开车粗氩塔投运阶段、35000 m 3/h空分设备正常运行变负荷状态的氩馏分流量调节方法运用实例。展开更多
Experimental and numerical studies were carried out for the behavior of hydrogen in a three-phase electro- slag furnace using double electrode series technique during electroslag remelting （ESR） process. The effect ...Experimental and numerical studies were carried out for the behavior of hydrogen in a three-phase electro- slag furnace using double electrode series technique during electroslag remelting （ESR） process. The effect of water vapor content of furnace gas on the hydrogen content of ingots was studied through the ＂gas-slag-metal＂ osmosis ex- periment. Based on the experimental results, a mathematical model was set up for the behavior of hydrogen pick-up during ESR process. Then the flow of furnace gas during ESR process was studied through a commercial code FLU- ENT, and the relationship between the water vapor content of furnace gas and argon gas flux in practical production was derived. Finally, the desired reasonable argon gas flow for controlling the hydrogen content of ingots below 2 × 10-6 in practice was obtained.展开更多
文摘空分设备下塔、上塔、粗氩塔的不同精馏工况影响氩馏分流量的因素不同,使得氩馏分流量的调节方法也不同。以马钢20000 m 3/h液氧内压缩流程空分设备与35000 m 3/h氧气外压缩流程空分设备为例,详细分析空分设备下塔、上塔、粗氩塔不同精馏工况对氩馏分流量的不同影响因素,介绍20000 m 3/h空分设备热开车粗氩塔投运阶段、35000 m 3/h空分设备正常运行变负荷状态的氩馏分流量调节方法运用实例。
基金Item Sponsored by National Natural Science Foundation of China(51274057)Key Projects in National Science and Technology Pillar Program of China(2011BAE13B03)National High-Tech Research and Development Program of China(2013AA03092,2012AA03A508)
文摘Experimental and numerical studies were carried out for the behavior of hydrogen in a three-phase electro- slag furnace using double electrode series technique during electroslag remelting （ESR） process. The effect of water vapor content of furnace gas on the hydrogen content of ingots was studied through the ＂gas-slag-metal＂ osmosis ex- periment. Based on the experimental results, a mathematical model was set up for the behavior of hydrogen pick-up during ESR process. Then the flow of furnace gas during ESR process was studied through a commercial code FLU- ENT, and the relationship between the water vapor content of furnace gas and argon gas flux in practical production was derived. Finally, the desired reasonable argon gas flow for controlling the hydrogen content of ingots below 2 × 10-6 in practice was obtained.
