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“金陈”成品油管输设计及投用效果
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作者 王丽群 《石油化工技术与经济》 2009年第3期18-22,共5页
对"金陈"成品油输送管道的工艺设计进行了论述,包括管线设计输量、管线设计压力、管线工艺计算、管线输油工艺确定等,介绍了减少管线混油的措施、管道的压力调节与水击控制系统。最后从该管线的投用效果进一步阐述了成品油采... 对"金陈"成品油输送管道的工艺设计进行了论述,包括管线设计输量、管线设计压力、管线工艺计算、管线输油工艺确定等,介绍了减少管线混油的措施、管道的压力调节与水击控制系统。最后从该管线的投用效果进一步阐述了成品油采用管线输送的优点。 展开更多
关键词 成品油 管道 工艺设计 投用效果
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催化重整装置增加原料效果分析 被引量:1
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作者 张路春 吴仲刘 +2 位作者 张诚 冯启 赵煦 《广州化工》 CAS 2013年第6期173-175,共3页
介绍了柴油加氢改质装置粗汽油进催化重整装置原料罐、苯抽提装置抽余油及DSO-FCC汽油加氢脱硫装置加氢中汽油进催化重整装置预分馏塔作为重整原料油的技术改造及实施方案,以及投用后催化重整装置的生产运行情况、投用效果分析及经济效... 介绍了柴油加氢改质装置粗汽油进催化重整装置原料罐、苯抽提装置抽余油及DSO-FCC汽油加氢脱硫装置加氢中汽油进催化重整装置预分馏塔作为重整原料油的技术改造及实施方案,以及投用后催化重整装置的生产运行情况、投用效果分析及经济效益评价。 展开更多
关键词 粗汽油 抽余油 加氢中汽油 重整 生产运行 投用效果
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尿素合成塔更新总结
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作者 韦友存 《黑龙江科技信息》 2014年第16期28-28,共1页
介绍了尿素合成塔更新时的塔板技术改造,力求通过对尿塔更新的机会,达到同等生产负荷下降低生产消耗,其次,为一尿素系统提高生产能力作准备。从改造的效果来看,达到了更新改造的目的。改造后的生产系统较以前稳定,放空量减少,降低了中... 介绍了尿素合成塔更新时的塔板技术改造,力求通过对尿塔更新的机会,达到同等生产负荷下降低生产消耗,其次,为一尿素系统提高生产能力作准备。从改造的效果来看,达到了更新改造的目的。改造后的生产系统较以前稳定,放空量减少,降低了中低压分解负荷,降低了物料生产消耗,提高了装置生产能力、由日产310吨提高到550吨以上,生产能长周期稳定运行。 展开更多
关键词 尿素合成塔 更新 改造 球帽型塔板 安装方案 投用效果
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先进控制技术在常减压蒸馏装置的开发应用
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作者 李鸿钧 朱东辉 《齐鲁石油化工》 2006年第2期199-203,210,共6页
介绍了先进控制技术在锦西石化北蒸馏装置上的应用情况,设计开发的基本思路、主要研究内容及关键技术情况。通过对RMPCT特点和功能的介绍、加热炉支路参数平衡控制及动态机理模型的建立过程的阐述,揭示了先进控制技术在常减压装置应用... 介绍了先进控制技术在锦西石化北蒸馏装置上的应用情况,设计开发的基本思路、主要研究内容及关键技术情况。通过对RMPCT特点和功能的介绍、加热炉支路参数平衡控制及动态机理模型的建立过程的阐述,揭示了先进控制技术在常减压装置应用过程中的实用性和先进性。通过实施后的效果对比可知,RMPCT技术在常减压装置自控上有着常规PID控制不可比拟的优越性。 展开更多
关键词 先进控制 关键技术 RMPCT 建模 投用效果
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Trichromatic Animation
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作者 Michel Albert-Vanel 《Journal of Literature and Art Studies》 2012年第5期544-550,共7页
The process described here is well at the heart of the appearance of pigmentary materials and their interactions with light. It is indeed based on the property of colored materials to reflect, in a selective way, the ... The process described here is well at the heart of the appearance of pigmentary materials and their interactions with light. It is indeed based on the property of colored materials to reflect, in a selective way, the colored radiations of light. The innovation is here based on a more subtle and more complete process, using the trichromy, i.e., all the possibilities of the white light, which is split in three primary radiations: red^een--blue. One can, indeed, animate a pigmentary surface by the alternate projection of these three colors, and thus reveal three different images on the same support, or create a motion effect. However, in this process, the weakness of bhie, compared to green and red, might constitute an obstacle. But that will be compensated by the use of fluorescent colors, instead of ordinary colors. This process may provide very spectacular applications in the fields of lighting, architecture, design, scenography, booths, display windows, etc.. We shall propose a step-to-step approach. 展开更多
关键词 color light ANIMATION trichromatic absorption re-emission RADIATIONS dihedron FLUORESCENT RGB(Red--Green--Blue)
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Financial Effectiveness of Greek Municipalities: An Empirical Investigation
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作者 Christos Pallis Petros Pallis 《Management Studies》 2016年第5期183-196,共14页
Municipalities are autonomous economic and administrative entities, with common actions and responsibilities. Moreover, all Municipalities are quite different considering specific characteristics, such as geographic, ... Municipalities are autonomous economic and administrative entities, with common actions and responsibilities. Moreover, all Municipalities are quite different considering specific characteristics, such as geographic, demographic, and economic. The aim of this research is to separate the entire sample of Municipalities in Greece into categories, based on the effectiveness of financial management and financial performance into effective and ineffective ones. For the separation of the sample into groups, cluster analysis was preferred. For this reason, three variables were used: the lending capacity of the Municipality, flexibility in making non-investment costs, and flexibility in investment spending. These three variables were considered to be the key dimensions of effectiveness in financial management and therefore their use, representatively describes the effectiveness of Greek Municipalities. Thus, this paper presents the literature review of the financial effectiveness of Municipalities and the methodology of an empirical research through structured questionnaire that was sent to the entire population of Greek Municipalities, characterized in this way with considerable heterogeneity. In this way, it investigates the views of Mayors in the two categories of Municipalities (effective and non effective financial management and financial performance) as regards: (a) the biggest problems faced by the citizens in their Municipality, and (b) the biggest personnel problems faced by their Municipality. Concluding, the prioritization of both problems seems to be the same for both groups of Municipalities. The frequency of responses differs slightly and differences are not so large that financial performance can be considered to affect respondents' opinions. 展开更多
关键词 Greek Municipalities local development public finance financial performance financial management empirical investigation
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基于PLC控制的油气回收系统应用与研究 被引量:2
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作者 谷越 《中国石油和化工标准与质量》 2018年第8期95-96,共2页
随着国家环保工作的不断深化和可持续发展的要求,油气回收系统在炼油化工行业装车单元广泛应用,我国从20世纪80年代起开始这方面的研究开发及设备引进工作,本文阐述了油气回收系统的工艺流程及控制系统的组成单元,介绍了PLC的概念及油... 随着国家环保工作的不断深化和可持续发展的要求,油气回收系统在炼油化工行业装车单元广泛应用,我国从20世纪80年代起开始这方面的研究开发及设备引进工作,本文阐述了油气回收系统的工艺流程及控制系统的组成单元,介绍了PLC的概念及油气回收系统中PLC的选型、I/O分配,详细介绍了PLC编程过程中的联锁保护方案,监控画面组态的功能以及人机界面介绍。油气回收系统先进的控制方案是保证回收效率的关键,并通过实际运行参数验证控制系统满足环保标准。 展开更多
关键词 工艺流程 PLC选型 安全联锁 投用效果
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