浅谈600MW亚临界燃煤机组锅炉低氮燃烧器的改造

为降低脱硝SCR的运行费用,某公司对6号机组锅炉燃烧器进行改造,目前某公司6号炉的NOX排放浓度通常在580 mg/Nm3左右,改造后的燃烧器将会降低燃煤在炉膛炉膛燃烧过程中的NOX的生成量。文章重点介绍锅炉低氮燃烧器改造方案,浅谈燃煤机组锅炉NOX生成机理和燃烧器对NOX生成的控制。     

燃煤机组锅炉低氮燃烧器改造运行调整探讨

研究表明,对于反应器出口氮氧化物的排放量以及氧含量存在最适范围,烟气再循环开度与二次风入射角度会对燃料产生显著影响,当后燃严重时甚至会使非催化还原反应效率降低,甚至处于失效状态。     

600MW机组低氮排放改造效果分析

600MW燃煤机组采用新型中心浓淡低氮燃烧器技术,结合脱硝喷氨改造,烟囱入口NOX达到超净排放改造预期效果。     

1175t/h锅炉低氮燃烧器低负荷汽温的整治

以国华三河电厂1175t/h锅炉机组低氮燃烧器改造实例为切入点,分析低氮燃烧器经改造后低负荷汽温无法达到设计值的原因,进而提出治理该问题的相关措施,通过对治理后锅炉机组低氮燃烧器运行情况的分析,证实了改造措施的确切效果,望能够引起重视。     

低氮燃烧器+SCR联合运行简介

国家对NOx的排放标准越来越严格。为了达到国家的标准,电力系统开始使用低氮燃烧器+SCR联合设备,本文简单讲述了在实际调整中遇到的问题以及应对策略。     

300MW燃煤机组低氮燃烧的技术研究与运行探讨

煤炭中含有硫化物的危害,已经引起了人们的重视,通过除硫技术等,极大地减少了有害气体的排放,但是煤中硝燃烧产生的氮氧化物等,目前还没有良好的处理方式,本文在低氮燃烧技术的发展以及低氮燃烧作用的基础上,结合300MW燃煤机组低氮燃烧技术原理和控制技术,对低氮燃烧技术的运行进行了深入的研究,希望能给实际的燃煤机组低氮技术改进工作提供一定的参考。     

低氮燃烧器在670T锅炉上的运用探讨

低氮燃烧器是一种新型环保燃烧器,可降低锅炉燃烧过程中产生的氮氧化物。本文针对漳泽发电分公司670T锅炉进行低氮燃烧器改造后的运行情况、燃烧调整方法和出现的问题进行全面分析比较,并提出针对性运行调整措施,使锅炉运行更加经济与安全,达到环保排放要求。     

300MW、600MW机组亚临界锅炉水循环系统可靠性的比较与分析

阐述了亚临界自然循环与控制循环的水动力特点，列出了下降管有效压头、运动压头与阻力之间的关系式，实际与理论循环倍率，过冷度等数学表达式，并阐明了校核两种循环方式水冷壁可靠性的准则，同时对哈锅炉公司投运的典型的60万机组控制循环锅炉与30万机组两种循环方式的水循环特性作了详细比较，并提出了改进措施与开发60万机组自然循环锅炉建议。     

刍议600MW亚临界锅炉运行与燃烧调整

文章介绍了具体操作过程中600MW亚临界锅炉运行与燃烧调整的两大难题,也就是气温控制与制粉系统的控制,通过分析其在运行与燃烧调整中的各项环节,希望能为亚临界锅炉的运行与燃烧调整提供借鉴意义,从而节省机组移交的时间,保障机组的稳定安全、经济有效运行。     

An integrated innovation process model based on practices of Australian biotechnology firms

An integrated approach to managing the innovation process is attractive for organizations for many reasons. However, there is a relative paucity of models that describe this approach. In this paper, an attempt is made to produce one such model. Based on a multiple case study design involving nine biotechnology companies and one peak industry body from Australia, a conceptual model is proposed that has the linear stage process model as the backbone. The twin mechanisms of market pull and technology push are incorporated within the model, with a set of key organizational constructs (management, communication, structure and control) embedded within these mechanisms. Overall, the results of this study improve our understanding of the innovation process by building a more comprehensive and integrated conceptual model.     

Performance evaluation of China's high-tech innovation process: Analysis based on the innovation value chain

The Chinese high-tech industry has developed greatly since the beginning of China's “National High-tech R&D (863) Program” and “China Torch Program”. This paper introduces a conceptual model extended from the innovation value chain model to simultaneously estimate the R&D and commercialization efficiencies for the high-tech industries of 29 provincial-level regions in China. To match reality, a network DEA incorporating both shared inputs and additional intermediate inputs is constructed to open the “black box” view of decision making units used in single-stage DEA. This study is the first attempt to link the R&D and commercialization with a solid theoretical foundation and feasible mathematical methods. The empirical findings show that most of the 29 regions have low efficiency in the commercialization sub-process compared to the R&D sub-process, although there are regional differences in China's high-tech industry. Pearson correlation shows that the R&D sub-process is not closely correlated to the commercialization sub-process in terms of efficiency. Our analysis can provide information for the formulation of policies to achieve high innovation efficiency.     

Reprint of "Performance evaluation of China's high-tech innovation process :Analysis based on the innovation value chain"

The Chinese high-tech industry has developed greatly since the beginning of China's “National High-tech R&D (863) Program” and “China Torch Program”. This paper introduces a conceptual model extended from the innovation value chain model to simultaneously estimate the R&D and commercialization efficiencies for the high-tech industries of 29 provincial-level regions in China. To match reality, a network DEA incorporating both shared inputs and additional intermediate inputs is constructed to open the “black box” view of decision making units used in single-stage DEA. This study is the first attempt to link the R&D and commercialization with a solid theoretical foundation and feasible mathematical methods. The empirical findings show that most of the 29 regions have low efficiency in the commercialization sub-process compared to the R&D sub-process, although there are regional differences in China's high-tech industry. Pearson correlation shows that the R&D sub-process is not closely correlated to the commercialization sub-process in terms of efficiency. Our analysis can provide information for the formulation of policies to achieve high innovation efficiency.     

Process innovation laboratory: a new approach to business process innovation based on enterprise information systems

Most organizations today are required not only to operate effective business processes but also to allow for changing business conditions at an increasing rate. Today nearly every business relies on their enterprise information systems (EIS) for process integration and future generations of EIS will increasingly be driven by business process models. Consequently business process modelling and improvement is becoming a serious challenge. The aim of this paper is to establish a conceptual framework for business process innovation (BPI) in the supply chain based on advanced EIS. The challenge is thus to create a new methodology for developing and exploring process models and applications. The paper outlines the process innovation laboratory (Π-Lab) as a new approach to BPI. The Π-Lab is a comprehensive framework and a collaborative workspace for experimenting with process models. The Π-Lab facilitates innovation by using an integrated action learning approach to process modelling in a controlled environment. The study is based on design science and the paper also discusses the implications to EIS research and practice.     

基于公理设计的工艺创新方法研究

工艺创新对于提高制造业的市场竞争能力具有重要作用。文章提出了基于公理设计和TRIZ理论的工艺创新方法,通过公理设计的独立公理来识别工艺设计中的耦合问题,并提出引入新参数时所带来的有害参数的识别方法及其解决策略。应用TRIZ理论对耦合设计进行解耦,以得到满足需求的工艺方案。通过电饭煲的实例研究验证了该工艺创新方法的有效性。     

基于修正Nash谈判模型的科技创新合作收益分配研究

科技创新合作收益的分配对合作的可持续发展至关重要,目前还缺乏行之有效的模型和方案。文章利用NASH博弈的思想对两人收益分配问题展开讨论,进而扩展到多人收益分配问题,得出多人收益分配博弈的一个Nash均衡解。为反映各主体在科技创新收益分配中的权重,对收益分配的Nash谈判模型进行调整,从而得出修正的纳什均衡解。由此展开科技创新合作收益分配的方案探讨,为科技创新合作的可持续发展奠定理论基础。     

模糊积分模型在公共组织绩效评价中的应用研究

加强对公共组织绩效评价方法的研究,可以有效反映公共组织管理的效率,为上层组织提供决策依据.本文首先指出了模糊积分模型能消除指标间相关影响的客观性的优点,阐明模型在解决公共组织绩效评价问题上的可行性和优势,随后构建了公共组织绩效综合评价的理论模型,创新地引入了对模糊数的调整来确定各指标的权重,提高了权重的准确性.最后通过实证研究,验证该方法的适用性和局限性,为公共组织绩效评估的实际操作提出了若干建议.     

一种基于对象工作流网的学习过程模型

为了对E-learning的学习过程建模,采用双层建模技术,下层是语言描述层,以WfMC提出的XPDL为基础,结合学习领域的具体领域特征,对学习过程进行形式化描述,上层是流程逻辑层,采用对象Petri网实现,可以对下层模型进行数学上的分析、验证,保证所建模型的正确性、完整性,同时又可解决普通Petri网在规模过大时容易出现的状态爆炸问题。     

基于物元模型的中小企业技术创新能力综合评估

分析概括了企业技术创新能力的内涵及其特征,应用系统工程理论方法,设计了中小企业技术创新能力评价指标体系。在此基础上,运用物元理论建立了中小企业技术创新能力评价物元模型,进而将模型应用于实际问题,以上海3家企业技术创新能力为物元,对其技术创新能力进行了综合评价与分析,得到了3家企业技术创新能力的初步结论及改进的建议。为中小企业技术创新能力的评价与改进提供了一种科学有效的新方法。     

军事后勤保障流程信息集成模型研究

针对未来信息化战场军事后勤保障的特点，分析了业务流程再造与信息技术的关系、军事后勤保障流程信息集成的必要性，提出了军事后勤保障流程分布式信息集成模型，并分层次进行说明。