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热水自循环系统在氯乙烯合成中的应用 被引量:1
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作者 蔡阳 《化工技术与开发》 CAS 2011年第9期74-75,共2页
介绍了氯乙烯合成中热水自循环系统的原理、流程和应用,不仅节能降耗,而且增加产能。
关键词 热水自循环 氯乙烯 反应热
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氯乙烯转化器热水循环工艺的节能改造 被引量:1
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作者 王学会 李英 《中国氯碱》 CAS 2011年第7期16-18,22,共3页
介绍了氯乙烯转化工序转化器热水循环工艺的节能改造方案及内容。
关键词 氯乙烯转化器 热水强制循环工艺 热水自循环工艺 节能
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氯乙烯转化器热水循环工艺的节能改造
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作者 王学会 李英 《中国氯碱》 CAS 2011年第11期16-17,22,共3页
介绍了氯乙烯转化工序转化器热水循环工艺的节能改造方案。
关键词 氯乙烯转化器 热水强制循环工艺 热水自循环工艺 节能
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氯乙烯转化器运行情况分析
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作者 刘同武 许孝敬 +1 位作者 王秋月 吴玉魏 《聚氯乙烯》 CAS 2014年第6期32-35,共4页
介绍了乙炔和氯化氢反应制氯乙烯转化器使用前的触媒活化工艺、转化器运行过程中的操作和控制以及转化器热水自循环工艺,分析了氯乙烯转化器损坏的主要原因及应对措施。
关键词 氯乙烯 转化器 触媒活化 热水自循环 乙炔 氯化氢
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氯乙烯反应热转化器的节能改造方案
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作者 于长洪 邢宽 《科技创新导报》 2017年第22期74-75,共2页
氯乙烯是在工业生产中应用较为广泛的一种化工原材料。在氯乙烯的制备过程中乙炔与氯化氢反应过程中所产生的热量主要是通过与列管外部水温高达95℃的热水进行热交换的,传统的氯乙烯反应热转化器在热交换时所采用的水泵强制泵送方式热... 氯乙烯是在工业生产中应用较为广泛的一种化工原材料。在氯乙烯的制备过程中乙炔与氯化氢反应过程中所产生的热量主要是通过与列管外部水温高达95℃的热水进行热交换的,传统的氯乙烯反应热转化器在热交换时所采用的水泵强制泵送方式热交换效率低,从而导致能耗较大,为实现企业的节能增效需要对氯乙烯反应热转化器进行改造以提升氯乙烯反应热转化中的传递效率,本文在分析传统氯乙烯反应热转化器高能耗特点的基础上对如何通过对氯乙烯反应热转化器进行改造以实现节能降耗的目的。 展开更多
关键词 氯乙烯转化器 热水强制循环工艺 热水自循环 节能增效
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Enhancement of Natural Circulation Type Domestic Solar Hot Water System Performance by using a Wind Turbine 被引量:2
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作者 K.K.Ramasamy PSS.Srinivasan 《Journal of Thermal Science》 SCIE EI CAS CSCD 2011年第4期371-376,共6页
Performance improvement of existing 200 litres capacity natural convection type domestic solar hot water system is attempted.A two-stage centrifugal pump driven by a vertical axis windmill having Savonius type rotor i... Performance improvement of existing 200 litres capacity natural convection type domestic solar hot water system is attempted.A two-stage centrifugal pump driven by a vertical axis windmill having Savonius type rotor is added to the fluid loop.The windmill driven pump circulates the water through the collector.The system with necessary instrumentation is tested over a day.Tests on Natural Circulation System(NCS)mode and Wind Assisted System(WAS)mode are carried out during January,April,July and October,2009.Test results of a clear day are reported.Daily average efficiency of 25-28% during NCS mode and 33-37% during WAS mode are obtained.With higher wind velocities,higher collector flow rates and hence higher efficiencies are obtained.In general,WAS mode provides improvements in efficiency when compared to NCS mode. 展开更多
关键词 Solar hot water system efficiency improvement windmill driven pump
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Theoretical study on boiling heat transfer in the Xi'an pulsed reactor 被引量:2
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作者 CHEN LiXin TANG XiaoBin +2 位作者 JIANG XinBiao CHEN Da ZHAO ZhuMin 《Science China(Technological Sciences)》 SCIE EI CAS 2013年第1期137-142,共6页
Boiling heat transfer condition has significance for pool-type research reactors cooled by natural circulation.It has important effect on the fuel element safety of reactor.On the basis of heat transfer characteristic... Boiling heat transfer condition has significance for pool-type research reactors cooled by natural circulation.It has important effect on the fuel element safety of reactor.On the basis of heat transfer characteristics of the Xi'an pulsed reactor(XAPR),fuel conduction,single-phase convection and boiling heat transfer,and void fraction models of the core are constructed.To validate the correctness of the physical models presented in the paper,numerical calculation based on a subchannel analysis method of XAPR is carried out,and the temperature fields are measured in some reactor coolant channels.The comparison between the calculated and experimental results verifies the effectiveness of the models.These physical models are used to calculate the thermal-hydraulic parameters of XAPR at the rated power(for XAPR the rated power is 2.0 MW in steady-state operation).The results indicate that subcooled boiling occurs in the XAPR core but it exhibits a subcooling degree which is considerably higher than that of saturation boiling.Subcooled boiling improves the efficiency of heat transfer between the fuel element surface and coolant,as well as effectively protects fuel elements.This research is also a beneficial reference in thermal-hydraulic analysis for other natural circulation reactors. 展开更多
关键词 pulsed reactor thermal-hydraulic analysis subcooled boiling heat transfer coefficient void fraction
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