201610 技术应用与研究 当代化工研究29 Intermediate 现场总线技术在电力中的应用研究 崔庆凯 (中国华冶科工集团有限公司内蒙古014000) 摘要:随着我国通信技术的不断发展,现场总线以其独特的开放性数字化、互动性的基本特征在通信系统中发挥了重要的作用。相比 于过去传统的集散控制通信系统,现场总线系统可以很好的在确保通信机能的基础上更好的实现稳定传播、高效传播、使用成本较低的综 合目标。因此,本论文就在此背景下主要先对现场总线的基本概念与特征作全面的分析,再着重研究现场总线技术在通信系统中的所发挥 的重要作用,最后在深入探祈现场总线技术在我国的通信发展中的应用实践能力。 关键词:现场总线技术;通信系统;电力发展;应用研究 中图分类号:T 文献标识码:A Research on the Application of Fieldbus Technology in Electric power Cui Qingkai ( HuaYe Science and Industry Group co .,LTD in China ,Inner Mongolia ,014000 ) :Along with the increasing development of China's munication technology ,the fieldbus plays an important role in the munication system with its unique basic characteristics openness ,digitization ,interactivity .Compared with the traditional distributed control munication system ,the fieldbus system can better to achieve the prehensive goal of stable spreading ,efficient spreading and lower use-cost on the basis of ensuring the munication function .Therefore ,under this background ,this paper takes prehensive analysis of the basic concept and characteristics of the fieldbus ,and then focuses on studying the important function of fieldbus technology in munication ...
201703 科研开发 当代化工研究 109 Intermediate 现代智能配电箱的设计与应用初探 ★朱千锋 (九州职业技术学院江苏221116) 摘要:现代智能配电箱是在智能电网的背景下产生和发展起来的一种新型电气设备,与常规配电箱对比,其功能更加丰富,智能化程度 更高,不仅可以实现对于传统配变配套设施的整合,对电能表数据的集中采集,同时也具备负荷控制、配电保护及无功补偿等功能,在智 能电网的发展中发挥着重要作用。本文就现代智能配电箱的设计进行了分析,并就其实践应用进行了讨论。 关键词:智能配电箱;设计应用 中图分类号:T 文献标识码:A Discussion of the Design and Application of Modern Intelligent Electrical Distribution Box Zhu Qianfeng Jiuzhou Vocational and Technical College ,Jiangsu ,221116 ) Abstract :Modern intelligent electrical distribution is one new-type electrical equipment ,which generated and developed under the background of intelligent grid ,pared with the ordinary distribution box ,its is richer and intelligent degree is higher ;besides ,it not only can achieve the integration of traditional electrical distribution transform and supporting facility and take concentrated collection of the electric energy meter data ,also it has the functions of load control ,electrical distribution protection and reactive pensation etc .,which has the important function on the development of intelligent power grid .In this paper ;it has taken analysis of the modern intelligent electrical distribution box design and taken discussion...
关键词:玄武岩纤维;聚合物乳液;混凝土干缩性能 中图分类号:TU528.571文献标识码:A文章编号:1005-8249(2014)06-0030-04 Li Qi-yang', Wang Yong-jie²,Song Yun=xiang² (1.Henan Yuhuai Expressway CO.,LTD.,Xinyang 464400,China 2.Henan Transportation Research Institute CO.,LTD.Zhengzhou 450006,China) Abstract:he experments on drying shrinkage of concrete were tested,and the effct of bsalt fber and polymer mulion n the drying shrinkafete stdiederels wthbaltalangativefetnthedrinhinkaefreh meansthmrefbaltfehlarerringrinkaeatfrt gtWitheeplinhdrynghk rate of concrete shows a significant increasing trend.The effct of basalt fber and polymer emulsion mixed on the drying shrinkage of concrete is bettr thanbsalf beandplyemulsiouealoecpudedue obasal be and polemulionanla dualmodifcatiofet on drying shrinkage of conerete. Key Wordsbasalt fiber;polymer emulsion;drying shrinkage of concrete 干缩是水泥基类材料的特性,水泥混凝土的干缩在其中均匀掺人各种非连续的短切玄武岩纤维为增强 对其结构耐久性有极其不利的影响。
粉煤灰综合利用 2016 NO.1 FLYASHCOMPREHENSIVEUTILIZATION 试验与应用 物理强化对再生混凝土碳化性能影响 Influence of Physical and Chemical Enhancement ofReeycled CoarseAggregate on CarbonationProperty of Recycled Concrete 韩帅"2,李秋义',张修勤',莫建',孔哲 (1.青岛理工大学,山东青岛266033;2.济南轨道交通集团有限公司,山东济南250101) 性能的影响。
关键词:颗粒整形;物理强化;再生粗骨料混凝土;碳化深度 中图分类号:528.01文献标识码:A文章编号:1005-8249(2016)01-0016-05 Han Shuai'* ,Li Qiu-yi',Zhang Xiu-qin', Mo Jian',Kong Zhe (1.Qingdao University of Technology, Shandong Province Qingdao 266033; 2.Ji'nan Rail Transit Group Co., Ltd Shandong Province Jinan 250101) Abstract:Accing toRecyeled carenggregate inconcree(GBT251772010),thewaste cocreteissimply cshed tII lass reydcagatha lterdareatpysilsthnatr recycled re aregalein pysica srengtheninghe inene n carbnatin prrty ad sbstitution rate=050%,100%)f reld Coarseagregate of physical adhmicl hnmt torelanatalaegatewerestdieherelt shw thatcarononpety f recycledrearegatecretisSArecyeled carsereatecneeFAreyeld cseaggregate coeretNatrecnreeSBAred oarsaatWftbhrae carbonation depth of FA and SA recycled course aggregate concrete reduces. ydap uouqeo aauoaae o paa tuaoa peo pue posqd udys aued spuom ay 混凝土碳化会降低混凝土的碱度,破坏钢筋表面 种不同品质的再生粗骨料,测试物理强化再生粗骨料 钝化膜,加剧钢筋的锈蚀;同时也会加剧混凝土的收 不同品质和取代率对再生混凝土碳化性能影响。
78 当代化工研究 绿色化工 201609 燃煤电厂烟气超低排放中的脱硫设计优化探讨 ★王凤荣 (大唐环境产业集团股份有限公司北京100097) 摘要:锅炉烟气脱硫系统,应纳入电站主体系统一并优化,方能适应越来越严格的环保排放及设备安全运行及节能增效的要求。文章介 绍了流化风系统、工艺水系统、设备冷却水系统、低低温省煤器系统等系统优化具体方法。 键词:气脱硫系统优化 图分类号:T文献标 Discussion of Desulfurization Design Optimization for Exhaust Gas Ultra-low Emission of Coal-fired Power Plant Wang Fengrong Datang Environmental Industry Group Limited-liability Company ,Beijing ,100097 ) Abstract :Boiler flue gas desulfurization system should be bined with power station subject system and then make the optimization ,so that to adapt to the requirements of increasingly stringent environmental emissions ,safe operation of equipment and energy saving and efficiency increasing This paper introduces the fluidization wind system ,process water system ,equipment cooling water system ,low-lemperature economizer system etc . systematical optimization methods . Key words :flue gas desulfurization ;system optimization 前言 排入排水沟后再回至吸收塔;低低温省煤器没有设置温度调 近来,全国大面积雾霾天气的持续加重,环保部门加大 节装置等。这些系统设置没有将脱硫系统与电站主体系统有 了对燃煤电站烟气处理的管理力度。被称为“史上最严”的 效结合,或者造成系统复杂、或者造成系统运行不便,给系 《火电厂大气污染物排放标准》(GB13223-2011)实施不 统运行安全带来了一定的安全隐患,同时也在一定程度上提 久,2014年9月12日,国家发展改革委员会、环境保护部、 高了工程造价,也不利于系统节能。以下拟结合电站主体系 国家能源局联合下...
58 当代化工研 Chenmical 行业动态 201601 煤质化验与煤质变化对火力发电厂的影响分析 聂爱民 (合肥热电集团天源热电有限公司安徽合肥230000 摘要:我国电能主要来源于火力发电厂,这就需要大量的煤炭,长期燃烧煤炭一定会对火力发电厂造成各种各样的影响,尤其是煤质化 脸和煤质变化对其影响较大,因此,应全面分析它们给火力发电厂所带来的彩响,并根据实际情况提出有效整改措施。 关键调:煤质化验;煤质变化火力发电厂 中图分类号:T文献标识码:A Analysis of the Influence of Coal Quality Analysis and Coal Quality Variation on Thermal Power Plant Nie Aimin ( HefeiThermoelectric Corporation Tianyuan Power and Heat Co .Ltd Hefei city in Anhui province ,230000 ) Abstract :China's electric energy is mainly es from thermal power plant ,so large number of coal is needed ,however ,long period of coa I bustion will definitely cause various influences to thermal power plant ,especially for the heavier infuence of coal quality analysis and coal qua lity variation .As for this situation ,we need take a overall analysis on the influence of these factors to thermal power plant ,furthermore effective fication measures need to be put forward according practical conditions . Key words :coal quality analysis coal qualiry variation thermal power plant 前言:随着人们对电能需求的增多,火力发电厂的应用 而导致燃烧却不充分,有时还会出现灭火甚至打炮的情况, 也就越来越多,但在实际工作中发现,很多电厂出现了煤炭 致使机组不能安全运行。通常情况下,灰分含量越高,炉膛 存储量不足的情况,经常因缺少煤炭导致停机,不仅影响到 所遭受的磨损就越严重,有时还会威胁到整个机组...
粉煤灰综合利用 2015No.6 FLY ASH COMPREHENSIVE UTILIZATION 试验与应用 煤矿井下壁面封堵涂料的制备试验 Preparation of Wall Sealing Coating for Underground in Coal Mine 刘建强,杨凤玲,宋慧平,程芳琴 (山西大学资源与环境工程研究所,国家环境保护煤炭废弃物资源化高效利用技术重点实验室,山西太原030006) 摘要:为了有效抑制煤矿井下瓦斯气体涌出,本文通过考察不同种类聚合物乳液和液粉比对瓦斯封堵涂料性能 (包括表干时间、实干时间、断裂伸长率、抗拉强度、吸水率、耐火性)的影响,研制出一种新型聚合物水泥类煤矿井下瓦 斯封堵涂料。结果表明添加S400F乳液的涂层性能最好,且成本较低,最适合用于制备煤矿井下封堵涂料;随着液粉比 的增大,涂层抗拉强度降低,断裂伸长率升高,防水性得到改善,但涂层干燥时间会变长,耐火性也相应变差。因此,表层 材料宜采用0.4~0.5的液粉比,底层材料宜采用0.2左右的液粉比。 关键词:聚合物乳液;瓦斯封堵涂料;煤矿井下;耐火性;液粉比 中图分类号:TU545 文献标识码:A 文章编号:1005-8249(2015)06-0014-05 Liu Jianqiang ,Yang Fengling ;Song Huiping ,Cheng Fangqin ( Instituteof Resources and Environment Engineering State Environmental Protection Key Laboratory of Efficient Utilization Technology of Coal Waste Resources ,Shanxi University ,Taiyuan 030006 ,China ) Abstract :In order to suppress the gas emission in coal mine efficiently ,a new type of coal mine gas seal coating is developed .The properties of gas sealing coating were investigated by different kinds of polymer emulsion and liquid powder ratio in this paper ( includingsurface dry time action time ,elongation at break ,tensile strength ,water absorption ,fire resistance ).The results shows ...
粉煤灰综合利用 FLY ASH COMPREHENSIVE UTILIZATION 2013NO.4 试验与应用 煤矸石热活化性能研究及其用于建筑砂浆的制备 Study of Thermal Activation Properties of Coal Gangue and Its Preparation for Building Mortar 张蕾12,宋旭艳3 (1.同济大学建材研究所,上海201804;2.先进土木工程材料教育部 重点实验室,上海201804;3.苏州科技学院,苏州215011) 摘要:采用勃氏透气仪、激光粒度仪、X射线衍射(XRD)等分析方法分别对550℃、650℃、750℃、850℃和950℃ 5个活化温度所得的煤矸石进行了比表面积、粒径分布和矿物成分分析,研究了煅烧温度对煤研石矿物成分的影响机 理.结果表明:550℃和650℃煅烧的煤研石矿物分解不充分,形成的活性Si02和A山203含量少,煤研石火山灰活性低; 850℃和950℃煅烧的煤矸石,其活性S102和A1203又重新化合成新的晶体结构,煤矸石活性同样较低;750℃是煤研石的最 佳活化温度,该温度下煤研石具有最疏松的矿物结构和最高的活性SiO2和A山2O3含量,且该活化温度配制的砂浆性能最优. 关键词:煤研石;热活化;矿物成分;XRD;砂浆性能 中图分类号:TQ177.6*9文献标识码:A 文章编号:1005-8249(2013)04-0027-04 Zhang Leil.2 Song Xu yan' (1.Institute of Building Materials Tongji University Shanghai 201804 China; 2.Key Laboratory of Advanced Civil Engineering Materials of the Ministry of Education Tongji University Shanghai 201804 China;3.Suzhou University of Science and Technology Suzhou 215011 China) Abstract:The specific surface area particle size distribution and mineral ponents of coal gangue by different thermal activation tempera- ture-550℃,650℃,750℃,850℃and950℃-have been analyz d by the methods of Bertrand pemeability instrument laser particle analyzer and XRD as well as the influence mechanism of calcined temperature on the mineral ponents of coal gangue.The results show that:the minerals of coal gangue after the temperature of550℃and650℃has not been fully deposed which leads to a low content of active Si(02 and Al203 ss well as the low pozzolanic act...
粉煤灰综合利用 FLY ASH COMPREHENSIVE UTILIZATION 2015N0.5 专题研究 煤矸石混凝土碳化性能初步研究* Preliminary Study on the Carbonization Performance of Coal Gangue Concrete 王洋,胡凯伟2 (1.同济大学先进土木工程材料教育部重点实验室,上海201804; 2.武汉理工大学硅酸盐材料与工程国家重点实验室,湖北武汉430070) 摘要:利用正交优化试验研究了不同因素对煤矸石混凝土抗碳化性能的影响.研究表明:在各因素中,水胶比对 煤矸石混凝土抗碳化性能影响较为显著,煤矸石掺量和硅灰掺量影响次之,减水剂掺量对其抗碳化性能影响最小. 关键词:煤矸石;混凝土;碳化;正交试验 中图分类号:TU528.2文献标识码:A 文章编号:1005-8249(2015)05-0003-05 Wang Yang' Hu Kaiwei? (1.Key Laboratory of Advanced Civil Engineering Materials of Education Ministry Tongji University.Shanghai 201804 China; 2.State Key Laboratory of Silicate Materials for Architectures Wuhan University of Technology Wuhan 430070 Hubei China) Abstract:According to the orthogonal optimization experiment the impact on the coal gangue conerete carbonization properties of all the parameters is studied.The experimental results show that the W/C has the significant effect on the carbonation resistance performance followed by the contents of coal gangue and the silica fume and the water reducing agent has the least impact. Key Words:coal gangue;concrete;carbonization performance;orthogonal optimization test 煤研石是指煤炭在生产过程中产生的一种废弃岩弃煤研石进行有效的利用,具有较高的经济效益和社 石,长期积存和逐年排弃不仅占用了大量的土地,且在会效益...
粉煤灰综合利用 FLY ASH COMPREHENSIVE UTILIZATION 2012o.1 题研 焦炭-水泥基复合材料电磁屏蔽性能的研究 Research on The Electromagnetic Shielding Performance of Cement-Based Composite Materials of Coke 宋钦 (1.同济大学材料科学与工程学院,201804; 2.同济大学先进土木工程材料教育部重点实验室,上海201804 摘要:研究了焦炭和碳纤维的掺量,焦炭细度,减水剂,样品厚度对材料电磁屏蔽性能的影响。分别利用两电极法 和同轴电缆法测试了材料的电阻和电磁屏蔽效能。研究结果表明增加焦炭的掺量对水泥基材料导电性能的影响不显 著,但增加焦炭细度能明显提高水泥基材料的导电性能;而样品厚度对水泥基材料的电磁屏蔽性能影响不大;焦炭水泥 基材料掺人碳纤维后能使材料的导电性能和电磁屏蔽性能明显提高。 关键词焦炭水泥基材料电磁屏蔽 中图分类号:TU317.6 文献标识码:A 文章编号:1005-8249(2012)01-0023-05 Song Qin ( KeyLaboratory of Advanced Civil Engineering Materials ,Ministry of Education ,Tongji University ,Shanghai 201804 ) Abstract :Rescarch the influence to the electromagnetie shielding performance of coke and carbon fiber content ,fineness of coke ,water - reducing agent ,the sample .Resistivity were measured using two-probe method ,and shielding effectiveness were measured the cable method .The result show that increasing the contents of coke ,the conductivity of cement based materinl changes little .But when increasing the fineness of coke ,the conductivity of the cement based material will increase too .As the thicknese of sample increase ,the shielding effectivity of the cement based mater...