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海委直管河段水事违法案件分析 被引量:1
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作者 徐凯 张锐 刘博静 《海河水利》 2020年第2期16-18,共3页
海河流域水资源短缺,水事违法行为时有发生。总结了海委直管河段水事违法案件数量、类型和时间分布特点,分析了流域内水事违法案件发生的原因,并提出了系统管理、以防为主等强化流域水行政执法工作相关建议,为有效查处流域水事违法案件... 海河流域水资源短缺,水事违法行为时有发生。总结了海委直管河段水事违法案件数量、类型和时间分布特点,分析了流域内水事违法案件发生的原因,并提出了系统管理、以防为主等强化流域水行政执法工作相关建议,为有效查处流域水事违法案件、规范流域水资源开发利用行为提供参考。 展开更多
关键词 流域机构 直管范围 水事违法案件
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广东省进一步理顺电价、规范电价管理
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《粤港澳价格》 2002年第12期45-46,共2页
经省人民政府同意,我省从2002年11月1日起,对现行的电价体制和部分电价政策进行调整,同时调整省广电集团有限公司直供直管范围内(以下简称省直供直管范围内)的销售电价。
关键词 广东 电价管理 广电集团有限公司 上网电价管理 省直供直管范围
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Indirect heat integration across plants using hot water circles 被引量:3
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作者 常承林 王彧斐 冯霄 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2015年第6期992-997,共6页
Total site heat integration(TSHI) provides more opportunities for energy saving in industry clusters. Some design methods including direct integration using process streams and indirect integration using intermediate-... Total site heat integration(TSHI) provides more opportunities for energy saving in industry clusters. Some design methods including direct integration using process streams and indirect integration using intermediate-fluid circuits, i.e., steam, dowtherms and hot water, have been proposed during last few decades. Indirect heat integration is preferred when the heat sources and sinks are separated in independent plants with rather long distance. This improves energy efficiency by adaption of intermediate fluid circle which acts as a utility provider for plants in a symbiotic network. However, there are some significant factors ignored in conventional TSHI, i.e. the investment of pipeline, cost of pumping and heat loss. These factors simultaneously determine the possibility and performance of heat integration. This work presents a new methodology for indirect heat integration in low temperature range using hot water circuit as intermediate-fluid medium. The new methodology enables the targeting of indirect heat integration across plants considering the factors mentioned earlier. An MINLP model with economic objective is established and solved. The optimization results give the mass flow rate of intermediate-fluid, diameter of pipeline, the temperature of the circuits and the matches of heat exchanger networks(HENS) automatically. Finally, the application of this proposed methodology is illustrated with a case study. 展开更多
关键词 Indirect integration Intermediate-fluid Across plants PIPELINE Optimization
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