储罐设计标准关键技术问题探讨

针对国内外储罐事故的经验教训,系统梳理了国内外储罐设计标准。为了提高国内储罐标准的先进性,分别从储罐附件设计、储罐消防设计和储罐安全设计3个方面,深入研究了国内外标准差异。国外储罐标准技术先进性包括储罐安全距离、浮顶储罐浮盘状态监视、储罐泄漏检测和防渗设计等方面。最后借鉴国外标准先进理念,就完善国内储罐设计标准提出了建议。     

填埋技术在工业废物处置场贮存作业中的应用

将填埋作业技术应用于工业渣场贮存作业,按照分区贮存、分期建设、分单元作业和临时覆盖等原则进行作业设计,可最大限度地减少工业废物处置场对地下水、地表水及大气的环境污染以及节省投资.     

浅析油气储运过程所存在的问题及处理方式

油气储运过程中存在大量的问题,例如油气储运系统中对腐蚀情况的监测与防护、油气运输过程中的蒸发损耗与回收、静电处理等。这些问题都在间接影响我国经济的健康发展。     

条形码技术在药品仓储中的应用

针对当前物流仓储管理中存在的工作强度高、速度慢、效率低等问题,介绍了条形码识别系统在仓储管理中所发挥的巨大作用,重点阐述了条形码技术在药品入库、药品保管、药品出库过程中的具体应用方法。与传统的仓储管理方法相比,条形码识别系统具有很大的发展潜力。     

基于物流视角的北宋粮食纲运分析

基于物流系统要素理论,从一般要素、功能要素、支持要素和物质基础要素四个方面分析了北宋粮食纲运系统,从纲制编排与纲运限程、纲运管押与催检、行运秩序与安全保障三个方面描述了北宋粮食纲运的管理过程,纲运过程存在着诸如纲物丢失、损坏、延期运抵等问题,造成这些问题的主要原因是在押纲、催检和起卸三个环节上的官吏腐败。     

基于层次分析法的航材储存安全评价研究

首先根据航材仓储安全的影响因素,建立储存安全评价指标体系;然后给出评价指标权重的计算方法,采用模糊综合评估方法对安全进行总体评估;最后结合实例进行了安全评估,结果表明,指标体系可以对某航材仓库的航材储存工作进行全方位的评价,证明了该方法的可行性与科学性。     

Container storage and transshipment marine terminals

This study addresses the storage arrangement of transshipment containers on a container yard, in order to carry out efficiently the ship handling operations at a terminal where mega-containerships call. An optimization model is specified to investigate the flow of containers from the mega-containership to feeder ships using intermediate storage at the yard. A heuristic based on the lagrangian relaxation is formulated. The quality of the heuristic approach is tested in a number of experiments. In the experiments, various situations are analyzed with respect to mega-containership arrival rates, some strategies for stack arrangements and terminal layouts.     

Approaches towards a generic methodology for storage of hazardous energy carriers and waste products

Energy carriers – either conventional or ‘new’ ones – have to be provided in large amounts to meet the requirements of permanent availability and reliable supply of electricity. Depending on their state of aggregation, energy carriers are either stored in large masses (if solid or liquid) or at elevated pressures (if gaseous). Both impose the hazard of large-scale fire, in the latter case additionally the danger of explosion or unintended release. Very similar hazards occur for wastes. Solid wastes are present in large masses and only a small part is recycled. Most of the solid wastes are used in energy conversion. The main gaseous waste is CO₂. During capturing also the hazard of unintended release exists. In this article, existing approaches for safe storage and fire prevention are discussed and a generic methodology is outlined. This methodology consists of the following steps:

? gaining knowledge about the behaviour of the material stored (reactivity, thermal stability, etc.),

? assessing the environmental conditions for the storage site (neighbourhood, safety distances, etc.),

? assessment of prospective consequences of an incident and

? development of individual loss prevention conceptions.

All steps require both experimental testing and theoretical considerations about accident scenarios as integral parts of the methodology.     

试论文山州粮食生产

近十余年来,文山州粮食生产发展很快,取得了可喜的成就,但形势仍很严峻。本文全面分析了粮食生产在文山经济发展中的地位,有利与不利因素,指出了粮食生产发展的途径与措施。