电力电缆及隧道在线监测与移动巡检协同策略探讨

基于在线监测系统和移动巡检设备对于电缆本体及通道环境状态感知具有互补性、交叉性和相关性的特点,提出一种在线监测系统与移动巡检系统相互协同的电力电缆及遂道状态感知方法,通过两者之间的双向协同策略,使其能够在宿主设备故障确认、融合分析和检测系统自身状态检查方面相互配合,有效提升了电力电缆及隧道运维的智能化水平。     

中兴接入网维护管理系统

本文首先说明了接入网网管的重要性及其一般功能结构,然后较为详细地介绍了中兴接入网网管系统的结构模型、系统设计和管理协议栈,最后介绍了中兴接入网网管系统的主要功能。     

燃烧器改造现状与优化运行

着重介绍了吉林省部分电厂燃烧器改造情况与运行效果,并就各电厂实际情况对改造后燃烧器的性能及存在的问题进行了分析,提出了加强煤质管理、增加监视系统、改变传统改造方法等优化运行的途径,而且只有通过节能降耗增加锅炉燃烧稳定性,才能获得更大的经济效益和社会效益。     

多雷达综合跟踪

本文研究了集中式多雷达综合跟踪机理,如跟踪系统文件管理、运行机制等;提出了雷达方位扫描初始位置预置和数据重组的方法,并以某型舰的多雷达系统为工程背景对8个目标在多种战术机动情况下进行了跟踪仿真。结果表明,本文提出的方法可以较好地解决多雷达跟踪中的一些特殊问题。     

关于变压器基本参数选择问题的探讨

针对电力变压器设计、选型中有关无功补偿配置、额定电压选择、经济运行条件及动稳定问题进行了探讨,并就如何优化变压器参数配置,提高变压器的运行性能提出了相应的技术措施。     

CENTRALIZED MULTIRADAR INTEGRATED TRACKING

This paper deals with the integrated tracking mechanics of centralized multiradar system,such as tracking system files management, operation mechanics, etc. Simulation is made for a certain ship tracking 8 targets under various tactical maneuvering situations.     

三峡工程一期土石围堰的施工及运行要点

三峡工程一期土石围堰全长约2500m，高度30～40m，束窄原河床约30％。围堰施工的主要难点是：工期紧、强度高，石渣、块石料缺乏，迎水侧水下清基与堰体填筑干扰大，防渗墙施工困难。针对这些难点采取了如下一些对策：试验段提前施工，开辟过渡性料场，优化水下填筑程序，在防渗墙造孔中钻爆结合对付块球体，用湿磨细水泥灌浆帷幕部分取代防渗墙，部分采用高压旋喷防渗等10项措施。为了确保安全和为二期深水围堰的建造积累经验，对一期围堰进行了多项监测。监测结果表明，运行近一年中，围堰工作状态正常，渗漏量仅200L／min。     

从节能的角度看III级洁净手术室的系统形式

洁净手术部建设中对于III级手术室的空调系统形式一般的设计为一拖三的形式,很明显这不是避免交叉感染的最好形式,有悖于建造洁净手术部来降低手术感染风险的初衷。通过对投资以及运营方面的比对来探讨新的系统形式     

硝化棉虚拟生产操作培训系统的开发

硝化棉生产虚拟操作培训系统,包括理论知识和实物模型、事故场景和数据库、虚拟操作及操作考核测试模块等.实物模型和事故场景用3DS MAX制作.数据库采用VB和Access实现.操作考核成绩评定使用CENTUM顺控表的工作单组态方法.该系统培训内容含:全流程、工序及工况培训.     

Design and performance of a solar-powered air-conditioning system in a green building

A solar-powered adsorption air-conditioning system was designed and installed in the green building of Shanghai Research Institute of Building Science. The system contained 150 m² solar collectors and two adsorption chillers with nominal refrigeration capacity of 8.5 kW. Based on performance characteristics of the adsorption chiller, the operation mode of the solar-powered air-conditioning system was optimized by maintaining a phase shift of 540 s between the two adsorption chillers. Thereafter, the whole system realized stable operation by the balance of heat consumption and refrigeration output. From June to August of 2005, the solar-powered air-conditioning system continuously ran between 9:00 and 17:00. The operation performance of the system under representative working condition showed that the average refrigeration output of the solar-powered air-conditioning system was 15.3 kW during an 8 h operation and the maximum value exceeded 20 kW. Solar fraction for the system in summer was 71.7%, which corresponded to the designed cooling load (15 kW). Compared with the ambient temperature, it was deduced that solar radiant intensity had a more distinct influence on the performance of solar-powered air-conditioning system.