相变换热技术在油田注汽锅炉上的应用

通过对热采注汽锅炉系统能耗统计分析,结合注汽锅炉实际能耗情况,重点研究复合相变换热技术在河南油田注汽锅炉上应用的工艺和参数,分析其应用情况及效果,总结出提高注汽锅炉运行热效率、实现节能降耗的方法。     

混凝土板墙加固后墙片与剪力墙性能的对比研究

首先通过3个墙片的水平低周反复伪动力试验,对比研究了混凝土板墙加固后墙片与剪力墙的承载力、耗能能力等各项抗震性能.由于试验条件的限制,试验仅对比研究了120 mm混凝土剪力墙与双面60 mm混凝土板墙加固后墙片的抗震性能.在试验基础上,利用有限元软件建立合理的计算模型,将计算结果与试验结果进行了对比分析;利用该计算模型...     

固相微萃取涂层的研究进展

固相微萃取是一种新型的样品前处理技术.萃取头涂层是固相微萃取的核心,涂层的性质对萃取的选择性和灵敏度起着决定性作用,综述了固相微萃取涂层的发展及其应用.     

环境保护和环境监测中的气相色谱法运用分析

气相色谱法是环境监测中的常用技术类型,其能协助相关部门快捷、精确地了解环境被污染现状,有针对性地拟定治理方案。本文在阐述气相色谱法技术原理的基础上,分条列举该技术用于环境保护与监测领域中的优劣势,较详细地探究其具体实践应用,以期对技术完善与推广有一定促进作用。     

某典型工业污染场地修复技术筛选及应用

工业污染场地修复技术种类繁多,以某搬迁化工厂原址土壤修复工程为例,介绍了筛选合适场地修复技术的过程,以及修复工程实施中所遇到的问题.并提出相关建议,以期为该类污染场地修复技术的筛选及工程应用提供参考.     

国外物质流分析研究进展

回顾了国外物质流分析研究的起源和发展,并对其主流研究方法作一概述;探讨了物质流分析研究框架及指标体系的发展及应用,对30余个国家的指标体系使用情况做一统计;总结了国外已研究物质流分析的主要国家物质流分析信息的应用情况;指出了国外物质流分析研究的不足之处。     

大孔吸附树脂在有机废水处理中的应用的研究进展

对大孔吸附树脂的基本特点进行了描述，介绍了大孔吸附树脂对各种有机废水处理的概况，并展望了其应用前景。     

The Energy and Environmental Benefits of Superconducting Power Products

Superconductivity has the potential to bring a more fundamental change to electric power technologies than has occurred since electricity use became widespread nearly a century ago. The potential is for an energy revolution as profound as the impact fiber optics has had on communications. The fiber optic ‘information superhighway’ was constructed by replacing copper wires with a higher capacity alternative. Superconductivity provides an ‘energy superhighway’ that greatly improves efficiency and capacity. The economic and energy impacts of superconductors are predicted to be huge. Many challenges are being addressed in order for superconductivity to play this important role in the electric power system. The difficult challenge is underway in many countries to manufacture electrical wire from the ceramic high-temperature superconducting (HTS) materials, while in parallel, super-efficient power devices that use these wires are being designed and demonstrated in field trials. The benefits can be substantial: HTS wires that are a resistance-free alternative to conventional wires while carrying 100 times the amount of electricity; oil-free electrical equipment that is environmentally benign, with half the energy losses and half the size of conventional alternatives; and addressable markets estimated to exceed US$10 billion per annum within the next two decades. The savings due to increased efficiency of HTS electric power products may exceed 36 million metric tons of CO₂ in Japan, and much higher numbers in the U.S. and Europe, if generation continues to rely upon fossil fuels.     

我国城市缺水问题及其缓解途径

我国目前有近３００个城市缺水,缺水问题己成为城市经济建设发展的重要制约因素之一。城市经济建设的持续发展影响着全国经济建设顺利发展的进程,所以,解决好城市缺水问题则成为关系到全局的重大课题。今后应进一步提高水的利用效益,在全面节流的基础上多途径开源。不断提高工业用水的重复利用率,并控制水污染,加速实现城市污水资源化。应制定鼓励节约用水的技术经济政策,支持节水型设备改造,调整产业结构和工业布局。缺水城市要限制需水多的行业发展。     

太钢热连轧水处理泥系列改造新工艺

新工艺引入“一机两用”和“以废治废”的思想进行系统改造 ,实现改造后污泥处理系统的良性循环 ,根除了污泥外排的局面 ,降低了成本 ,节约了费用 ,创造了良好的社会效益和环境效益