凝汽器真空度下降的分析与处理思路构建

凝汽器真空下降,就会导致汽轮机组运行的安全性、可靠性、稳定性和经济性都大大降低,提高机组凝汽器真空是非常有必要的,本文就针对真空降低的原因做出强有力的分析。根据实际情况,就针对凝汽器真空下降的主要原因提出相应的处理方法,保证机组在合理的背压下运行,从而提高机组运行的安全性、可靠性、稳定性和经济性。     

150MW汽轮机组真空下降的原因分析及对策

文章根据英力特英化热电150 MW机组运行中的具体情况,对影响机组真空的因素进行分析,结合运行及测得数据,从凝汽器的运行情况、真空的形成、系统漏入空气的来源、真空系统严密性、循环水系统、疏水系统及凝汽器铜管清洁度等方面分析讨论汽轮机真空偏低的原因,并进一步提出凝汽器真空的具体建议,并对真空严密性作深入研讨。     

钛管在瑞阳电厂凝汽器中的实际应用

汽轮机凝汽器是凝汽式汽轮机的重要组成部分,其工作性能直接影响整个机组的热经济性和运行可靠性.本文根据循环水水质不良地区火电厂的实际情况,对凝汽器常用的冷却水管材--铜管和新型的管材--钛管,从多方面进行比较,选择最适合的管材,并对实际应用效果进行详细分析,对存在类似情况的电厂具有一定的参考价值.     

钛管在瑞明电厂凝汽器中的实际应用

汽轮机凝汽器是凝汽式汽轮机的重要组成部分,其工作性能直接影响整个机组的热经济性和运行可靠性。本文根据循环水水质不良地区火电厂的实际情况,对凝汽器常用的冷却水管材——铜管和新型的管材——钛管,从多方面进行比较,选择最适合的管材,并对实际应用效果进行详细分析,对存在类似情况的电厂具有一定的参考价值。     

#1、#2机胶球系统收球率低问题的解决

保持凝汽器较高的真空和较小的端差,是提高机组循环热效率的主要方法之一,由于我厂使用工业废水,凝汽器循环水水质比较差,常有大量水塔填料碎片、树枝杂草等杂物进入冷却水系统,严重堵塞凝汽器,凝汽器冷却水管结垢或被杂物堵塞时,便破坏了凝汽器的正常工作,使真空度下降.根据计算真空每下降1KPa,机组热耗增加0.6%-0.8%.胶球系统能否正常运行对凝汽器的真空度及机组运行的经济性有重要影响。     

凝汽器热干燥清洗技术的利用

本文针对姚电公司凝汽器真空恶化的情况进行剖析，提出解决凝汽器换热面污染的方法，以实现火力发电厂节能增效运行的目的。     

影响凝汽器真空的原因分析

由于凝汽器真空度下降使汽轮机组运行的安全性、可靠性、稳定性和经济性降低。根据相关参数的变化和电厂运行检修规程,提出相应的处理方法,以保证机组在合理的背压下运行,提高机组运行的安全性、可靠性、稳定性和经济性。通过对汽轮机凝汽器真空度下降原因的分析,介绍了凝汽器真空度下降的危害及主要特征,分析了真空度下降的原因,提出了预防真空度下降的措施。     

300MW火电机组真空系统分析及优化运行措施

论述了汽轮机凝汽器真空对机组经济性的影响,从原理上分析了影响凝汽器真空的主要因素,针对机组的实际运行情况,采取了相应的优化措施,取得了较好的效果。     

凝汽器真空低原因分析及处理

机组运行中,凝汽器真空降低将直接引起汽轮机汽耗增加和机组出力不足,保持凝汽器在合理的真空下运行,是提高汽机运行的热经济性、降低发电成本的主要措施之一。本文主要针对湛江生物质电厂#1机组凝汽器真空偏低问题提出原因分析及检查处理。     

智能电磁阻垢除垢抑菌设备的应用分析

本文详细叙述了智能电磁阻垢除垢抑菌设备的工作原理以及在电厂A和电厂B的应用情况和效果,并对数据进行了分析和评价,结论是该设备能有效阻碍凝汽器换热管内壁垢的生成、抑制微生物的生长;能明显地降低凝汽器端差和降低机组排汽温度,提高机组的运行真空,提高机组的运行经济性。     

关于电厂回收余热改造工程的必要性探讨

电厂通过增加吸收式热泵机组对凝汽器乏汽的热量加以回收利用,其经济效益、环保效益、节能减排效益显著。     

价值分析在冷柜冷凝器上的应用

冷凝器是冷柜制冷系统的重要部件。介绍了近几年运用价值分析方法对冷柜用冷凝器通过材料替代、合理选型、减少维护等,在综合功能不变的情况下,降低综合成本方面开展的工作。     

浅谈暖通空调工程中制冷系统管道设计及施工技术措施

暖通空调工程中的制冷管道是将制冷压缩机、冷凝器、节流阀和蒸发器等设备及阀门、仪表等连接成一个封闭循环的制冷系统,使制冷剂不间断循环流动,起到制冷作用。     

浅析化学制药中低温合成反应的实现

文章主要介绍设计制冷机组来实现头孢类抗生素的低温合成反应。首先介绍了制冷机组运用在化学制药低温合成反应中的意义,其次介绍如何选用制冷剂和载冷剂并通过整个制冷系统的传热能量衡算来确定制冷压缩机、冷凝器和蒸发器,最后介绍通过制冷系统的试运行验证此制冷机组是否符合使用要求。     

An assessment and ranking of barriers to doing environmental business with China

The transfer of environmental goods and services to China will increasingly be of importance to developed nations as the demand for environmental management services increases in China. A review of the literature on technology transfer to China revealed a range of well recognized and commonly known constraints to transferring technologies to China. There were gaps in the literature in relation to the concerns that environmental professionals have regarding technology transfer to China, as there is limited information on the transfer in environmental goods and services to China. A survey of the non‐trade barriers and their practical impact on the transfer of environmental technologies and goods and services to China, focusing on Australian suppliers, was undertaken to address these gaps. The survey, which was developed from barriers to technology transfer already described in the extensive research addressing the wider issues of technology transfer to China, targeted environmental professionals but also included other professionals with interests in transferring environmental goods and services to China. From the survey, the highest priority barriers to transferring environmental goods and service to China were identified, and those that are most likely to limit Australian vendors of environmental goods and services in their technology transfers to China were protection of intellectual property (IP), limitations of the rule of law, fragmentation and bureaucracy of the Chinese government and establishing appropriate level of ownership (of environmental goods and services providers in China). Examples of Australian experience were also examined, which confirmed these barriers to providing the needed technology and innovation to manage China's increasing environmental impacts. The research also shows that the barriers identified do not appear to be unique to transfer of environmental goods and services but rather generic to the transfer and adoption of Australian technology into China. Copyright © 2007 John Wiley & Sons, Ltd and ERP Environment.     

论铁路多元经营企业的工资激励机制

近年来,铁路多元经营企业的管理架构、体翩和职能进一步优化,多元经营发展呈现良好态势。为鼓励多元经营企业延伸产业链条、拓展市场领域,运用工资调控的导向和激励作用尤为重要。文章着眼于现行工资管理模式,剖析工资激励机制中存在的问题及成因,并就如何逐步建立与市场接轨的工资管理体系,发挥工资杠杆激励约束功能,增强企业的发展动力进行有益探讨。     

基于系统动力学的物流系统研究

本文将系统动力学方法应用于物流运输这个复杂的系统当中,建立模型,对现实情况进行模拟,以期为物流企业提供定量的可持续发展预测分析,达到辅助企业科学决策的目的,引导物流企业沿着正确的方向发展壮大,提高物流企业生存竞争的能力,并进一步促进物流企业管理的科学化与现代化。     

士官《飞机结构强度》教学方法探讨

在分析士官学员特点和《飞机结构强度》课程特点的基础上,从巧妙设置问题、运用对比分析、采用归纳总结、联系部队装备、结合生活常识、引用历史典故和补充前沿知识等方面探讨了《飞机结构强度》课程的教学方法,以期达到提高教学质量、改善教学效果的目的。     

The Familiar Face of the State: Affect,Emotion and Citizen Entitlements in Dehradun,India

Municipal Councillors (MCs) are the ‘familiar face of the state’ in Dehradun, India: the first port of call for citizens seeking to claim entitlements from the state. The way MCs respond to the requests of their constituents is a major factor in the uneven distribution of government welfare and services. This article seeks to contribute to understandings of citizen entitlements by drawing attention to the role of affect and emotion in shaping the interactions between MCs and voters. I examine the ways citizens consciously or unconsciously engender emotions and affective responses, and the effect these have in mobilizing MCs. Attention to the, at times, involuntary nature of these responses suggests a need to go beyond the instrumental and calculating motivations of municipal councillors, to consider the way they are compelled and animated to meet the demands of some citizens, but not of others. The capacity to affect, and the ways one is affected, are tied to the social identities and self-making projects of both the MC and the voter, resulting in an uneven (mal)distribution of state resources. A focus on affective configurations in urban governance thereby reveals heretofore overlooked determinants of unequal access to urban resources and services.     

做好统一思想工作 促进企业经济发展

统一思想,步调一致,解放思想,开拓创新,是企业永葆旺盛活力的关键所在。如何让企业全体员工统一思想,步调一致,解放思想,开拓创新,进一步推动企业发展,永盛不衰呢?这就要求企业领导干部凡事要以身作则,深入基层,深入群众,科学管理,讲究民主,善于学习,与时俱进,开拓创新,筹谋发展,运用科学发展的理论,转换企业经营机制,以市场经济为导向,带领广大职工,不断推动企业经济发展,贡献社会,改善民生。