梅山高炉瓦斯泥综合利用的研究

分析研究国内外高炉粉尘使用情况，结合梅山高炉瓦斯泥的性质、特征和现状，提出用弱磁-强磁选的选矿方法，从梅山高炉瓦斯泥中回收铁精矿的设想。通过试验室试验，取得了较好的技术经济指标，达到了预期效果，并可降低锌含量。     

煤与瓦斯突出电磁辐射监测仪

根据煤与瓦斯突出机理和突出预测与防治原理,论述了煤与瓦斯突出电磁辐射监测仪的硬件组成和关键电路的设计,并完成了软件设计。通过井下实验证实了该监测仪可实现与煤体无触监测,且信息接收、舆较为可靠,为煤与瓦斯突出的分析和预报提供了正确的原始数据资料。     

储层应力敏感性对致密气藏压裂水平井试井分析的影响

针对致密气藏储层特征,采用解析解与数值解相结合的半解析法,建立了考虑储层应力敏感性和裂缝导流能力的致密砂岩气藏多段压裂水平井渗流数学模型,提出了一种考虑储层应力敏感效应的致密砂岩气藏压裂水平井试井分析方法.通过模型求解,对比分析了不同压裂规模的水平井试井解释压力动态曲线,并明确了储层应力敏感性对压降、压恢试井分析的影响.     

细观损伤力学在气体钻井井壁稳定性研究中的应用

用RFPA2D软件建立气体钻井井眼稳定的损伤力学模型,通过跟踪声发射信号研究井壁围岩在应力下的损伤演化,从细观损伤力学的角度探讨气体钻井时井壁围岩的损伤演化,以及转换介质后井壁失稳的原因。研究发现,气体钻井时井眼周围一定范围内出现损伤区,损伤区内形成微裂纹和裂缝,转换介质后由于泥浆渗入、压力波动而导致损伤区坍塌。     

倾斜管中气－液两相流摩擦压降的研究

本文对倾斜管中气一液两相流摩擦压降进行了试验研究。试验参数为：系统压力０～０．６ＭＰａ，水流量０～４ｍ３／ｈ，空气流量０～４０ｍ３／ｈ。得到了计算倾斜管摩擦阻力的计算公式，所得计算结果与试验结果符合良好。     

可压缩射流冲击板结构的流固耦合动力学分析

为了获得可压缩射流冲击下板结构的流固耦合动力学特性,在双渐近法的基础上,针对射流问题的特殊性,将射流冲击问题的边界条件引入到双渐近方法的计算中,形成了种新的适合于工程计算的数值方法.通过研究发现,冲击过程中,板的中心处会产生很大的冲击压力,并探明影响此压力的因素主要有冲击水柱含气量、板的材料、水柱横截面积、水柱头部形状和水柱速度.     

Effects of helium massive gas injection level on disruption mitigation on EAST

In this study, NIMROD simulations are performed to investigate the effects of massive helium gas injection level on the induced disruption on EAST tokamak. It is demonstrated in simulations that two different scenarios of plasma cooling(complete cooling and partial cooling) take place for different amounts of injected impurities. For the impurity injection above a critical level, a single MHD activity is able to induce a complete core temperature collapse. For impurity injection below the critical level, a series of multiple minor disruptions occur before the complete thermal quench.     

N,N,N’,N’-四丁基-3-氧-戊二酰胺辐解产物研究 Ⅰ.二丁胺的定性和定量分析

采用红外、顶空固相微萃取-气相色谱／质谱联用的方法，研究了萃取剂N，N，N'，N'-四丁基-3-氧-戊二酰胺(TBOPDA)的液相辐解产物，并通过与标准物质对照，确定TBOPDA的液相辐解产物中存在二丁胺和N，N-二正丁基甲酰胺。采用高效液相色谱、固相微萃取-气相色谱联用方法，定量分析了在辐照过程中TBOPDA的分解情况和二丁胺的产生情况，分别计算了两者的产额。提出了TBOPDA的3种可能断裂方式。     

金属氧化物气体传感器阵列的制备

利用薄膜技术制作的半导体金属氧化物气体传感器阵列是由一个基底上的四个传感器单元组成的。基本结构是在4英寸的硅片上制作完成的。首先,沉积金属铂电极,加热棒和温度传感器。其次,沉积半导体金属氧化物SnO2。然后进行传感器阵列电极的焊接,封装。最后进行测量,测量结果显示了传感器阵列对不同气体甲烷(CH4),一氧化碳(CO),氢气(H2),二氧化氮(NO2)和氨气(NH3)的响应。     

Experimental study on mercury content in flue gas of coal-fired units based on laser-induced breakdown spectroscopy

Accurate measurement of trace heavy metal mercury(Hg) in flue gas of coal-fired units is great significance for ecological and environmental protection.Mixed gas was used to simulate the actual flue gas of a power plant in this study.A laser-induced breakdown spectroscopy(LIBS)system for Hg measurement in mixed gas was built to study the effect of mixed gas pressure,Hg concentration in mixed gas and delay time on Hg measurement.The experimental results show that the appropriate low mixed gas pressure can obtain high Hg signal intensity and signal to noise ratio.The Hg signal intensity and signal to noise ratio increased with the increase of Hg concentration in mixed gas.The Hg signal intensity and signal to noise ratio decreased with the increase in delay time.According to the above results,the optimized measurement conditions can be determined.Different Hg concentrations in mixed gas were quantitatively analyzed by the internal standard method and traditional calibration method respectively.The relative error of prediction of the test sample obtained by the internal standard method was within 11.11%.The relative error of prediction of the traditional calibration method was less than 14.54%.This proved that the internal standard method can improve the accuracy of quantitative analysis of Hg concentration in flue gas using LIBS.