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样气处理系统技术应用及发展综论 总被引:1,自引:0,他引:1
以21世纪前沿技术的高端视野来审视在线分析系统的样气处理系统技术.样气处理系统技术是在线分析器工程应用系统(即在线分析系统)的核心和关键技术,确立这一最新的核心技术观念意义深远,将对在线分析系统的推广应用和在线分析工程技术的健康发展,产生极大的激励和促进作用.以在线分析系统形式将在线分析仪器应用于工业生产过程和节能、环保领域中去,实现气体物质成分量长期连续、稳定、可靠、少维护的检测分析,无论国内或国外,已经成为在线分析工程技术应用及发展的绝对主流,样品处理技术系统是其中极为关键的核心环节.本文对样气处理系统的体系性、样气处理系统技术规范的专业化、针对性设计,工业炉窑、化工领域在线分析系统的工程应用技术进行了重点论述,肯定了当前样气处理系统技术研发的最新努力及最新进展,进而指出在线分析工程技术的应用及发展正进入新的发展时期.基于大趋势理念,样气处理系统技术的应用及发展急切需要重新定位和重新选择方向. 相似文献
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在线分析样气除湿新技术的应用研究 总被引:1,自引:0,他引:1
样气处理系统技术是在线气体分析系统的核心和关键技术[1]。在线样气处理技术的重点和难点是样气的除湿和除尘处理。样气的除湿处理有几种传统方法,已不同程度地被工程界认可,但从技术发展的角度看,仍有一定局限性。从提高系统品质、延长系统使用寿命周期的要求来看,仍有提高除湿技术水平和效果的必要。本文在综合分析样气除湿技术现状和总结工程实践经验的基础上,重点介绍样气除湿技术的创新及应用。 相似文献
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样气处理系统技术是在线分析系统的两大技术基础之一,通常为在线分析系统开展工程应用的技术难点。高性能的核心样气处理部件是样气处理系统的关键技术节点,有时甚至成为特定在线分析系统的技术制高点。整体优化设计的组合式样气处理部件,可构建新型样气处理系统,进而为在线分析系统的设计和工程应用拓展创新空间。本文重点列举了三项具有技术优势的组合式样气处理部件,表达笔者的技术见解和长达六年的技术实践。 相似文献
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样气处理系统技术是在线气体分析系统的核心和关键技术,膜式过滤器是样气处理系统的基础性样气处理部件之一。本文论述分析了一种具有纳米特性的聚合薄膜的自清洁、高效过滤机理,进而介绍高效自吹洗综合过滤器(专利技术产品),为样气处理的高效“除尘”、“除水”提供一种新的产品和解决方案。 相似文献
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在线分析工程技术导论 总被引:3,自引:2,他引:1
在线分析工程技术取得"数量"发展之后,正迎来历史性新机遇,进入新的发展时期,而传统的技术观念和技术思维却是本专业健康发展的严重障碍.发展在线分析工程技术,迫切需要大趋势理念.本文在全方位深入分析探讨在线分析工程技术时,重新定义"样气处理系统"‘在线分析系统"、"在线分析工程技术",倡导在线分析工程技术新专业的理论初创.将"样气处理系统"提升到了"在线分析工程技术的核心和关键技术"的新高度,以样气处理系统取代使用数十年的"取样预处理系统"具有颠覆性的重要意义.仪器仪表是信息工业的源头.作为精密仪器的科学仪器(核心是分析仪器)更不待言,在线分析系统堪称科学仪器皇冠上的明珠,在开发资源、节约能源和防治环境污染等重要领域为人类社会不断创造出新的生产力,持续地推进人类社会的发展.任何技术的快速发展,都必须以理论创新为导向.以21世纪前沿技术的独特视角,去探寻考量此前未被深入触及的领域及疑难问题,试图领悟和探索进而把握住在线分析工程技术理论初创和质量发展的契机. 相似文献
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潘波 《工业仪表与自动化装置》2019,(5)
通过对焦化电捕焦油器煤气含氧量分析仪在线预处理装置工作效率低下和连续运行时间较短问题的分析研究,查找预处理系统的不足与缺陷,分析其原因,提出有效的优化改造方案。采用组合式"轻负荷"三级预处理技术方法,解决了困扰公司多年的焦煤氧含量分析取样传输管线被焦油和萘造成的气路堵塞,氧分析气室被硫污染腐蚀严重等问题。 相似文献
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The application of wet gas flow meter at shale gas wellhead is of great significance to reduce the investment and operation cost of shale gas extraction. In this paper, the flow conditions at the wellhead of shale gas and the principles of the current wet gas flow meters are briefly analyzed. A wet gas flow meter was tested on the wet gas flow test facility, and its performance of flow rates evaluation is studied, which is helpful to optimize the wet gas metering process design of shale gas wellhead and to improve the wet gas metering technology. This study shows that the measurement principles of the current wet gas flow meters are feasible, however, the calibration by using the wet natural gas at working conditions can help to enhance the meter's measure performance. 相似文献
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为产生ppb~ppm级微量浓度的高精准校准气体,设计了MFC-2000多参数动态气体校准仪,采用了具有强大功能模块的嵌入式微处理器MC9S12XDT512,完成了气体校准仪的结构及软硬件设计,提出了将臭氧发生器及光度计嵌入在仪器内部,实现了高精度的各种浓度校准气体的产生。试验结果表明,该仪器运行稳定,可靠性好,可以产生100 ppb~6 ppm级的臭氧、二氧化硫等标准气体,并可将产生的臭氧标气直接与NO零气反应产生特定浓度的NO2标气,为监测仪器的校准提供了更为简便的手段。 相似文献
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In industrial gas volume measurement, the reliable, precise and economically efficient determination of gas quantities by measurement is of utmost importance. Standby meter sections, Z-connection and permanent series connection of two gas meters of different designs are state of the art [Schmittner, D., The importance of the accuracy of measurement for industrial gas measurements. 3R International, Vol. 30, No. 6–7, 1991, pp. 338–343 (in German)]. The permanent or temporary series connection for the comparison and test section makes expenses for a second complete measuring device necessary. An alternative at present is the dismounting of the gas meter and the check test in an appropriate high-pressure test facility. A test according to requirements, using a non-interacting measuring instrument which should be transportable, if possible, and usable with other gas meters can be a bridge between these two possibilities. To prove this, measurements with an LDA system were carried out in a natural gas high-pressure pipeline upstream of a turbine gas meter. After extensive profile and single-point measurements have been made it can be said that this test by the single-point method is feasible with an uncertainty of ≤ ± 0.5%, providing defined prerequisites are met. 相似文献
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In working state, the dynamic performance of dry gas seal, generated by the rotating end face with spiral grooves, is determined by the open force of gas film and leakage flow rate. Generally, the open force and the leakage flow rate can be obtained by finite element method, computational fluid dynamics method and experimental measurement method. However, it will take much time to carry out the above measurements and calculations. In this paper, the approximate model of parallel grooves based on the narrow groove theory is used to establish the dynamic equations of the gas film for the purpose of obtaining the dynamic parameters of gas film. The nonlinear differential equations of gas film model are solved by Runge-Kutta method and shooting method. The numerical values of the pressure profiles, leakage flux and opening force on the seal surface are integrated, and then compared to experimental data for the reliability of the numerical simulation. The results show that the numerical simulation curves are in good agreement with experimental values. Furthermore, the opening force and the leakage flux are proved to be strongly correlated with the operating parameters. Then, the function-coupling method is introduced to analyze the numerical results to obtain the correlation formulae of the opening force and leakage flux respectively with the operating parameters, i.e., the inlet pressure and the rotating speed. This study intends to provide an effective way to predict the aerodynamic performance for designing and optimizing the groove styles in dry gas seal rapidly and accurately. 相似文献