联合循环电站用的空冷透平发电机

介绍了我国近年来开发的燃气 蒸汽联合循环电站用的空冷透平发电机的结构特点;同时也介绍了ABB公司开发的空冷机的特点。指出了这种发电机与国外的主要差别,以及今后的改进措施。     

高效率低噪声的联合循环电站透平发电机

本文主要论述了联合循环电站透平发电机采用空冷取代氢冷的最新发展,以及在为满足高效,低耗,节能,减排,环保要求而在提高效率,减轻噪声方面所进行的更加深入细致的挖潜和探索,以及所取得的达到世界先进水平的重大科研成果。     

燃气-蒸汽联合循环电站发电机新系列的开发

由于高效、节能、环保、可靠等方面优越的燃气 蒸汽联合循环电站的开发和应用,400MW以下的空冷汽轮发电机的市场需求高达80%,成为主流。各国纷纷开发空冷新系列。为满足国内外市场需求,国内自行开发成功了这种新系列产品。该文介绍某公司研制的空冷汽轮发电机新系列的特点和科研成果。     

联合循环电站发电机的研制及其与国外的差距

燃气一蒸汽联合循环发电设备的主要优点是高效、节能、环保，其效率高达60％以上。为了减少向大气中排放CO2，防止地球变暖、气温升高，各国曾在日本东京签署了“京都议定书”。为了改善能源结构，我国也在积极开发这种设备，已经成功地研制、投产了新系列的透平发电机，然而远远不能满足市场需求。     

联合循环电站的新概念——双源并联联合循环电站

本文简要介绍了一种新型联合循环电站——双源并联联合循环电站的概况及其对现有燃煤电厂进行双源并联改造的基本途径。     

泰国Rayong联合循环电站

介绍建设中规划容量为９００ＭＷ的Ｒａｙｏｎｇ联合循环电站。     

联合循环电站及其自动化控制

介绍和分析了以燃气轮机基础的联合循环要组自动化控制的特点及策略,并以常新电厂为例,评述了ＳＩＥＭＥＮＳＴＭＥ系统在联合循环电站过程自动化控制上的应用。     

液化天然气(LNG)联合循环电站热力学分析

基于系统部件的质量、能量和炯平衡,对以液化天然气(LNG)为燃料的联合循环电站,建立其计算模型,进行能量分析和炯分析,确定各个过程因热量、质量、功的传递以及不可逆损失导致的<火用>变化.结果表明,燃烧室和燃气透平的损失最大.占总炯损失的75%;燃料供应系统用海水为热源气化LNG,此过程因为输送海水要消耗大量的泵功,且浪费了LNG中蕴藏的大量高品位冷能,相对炯损失达2.21%.根据热力学分析结果,提出了进一步提高LNG联合循环电站效率的建议.     

Dynamic models for combined cycle plants in power system studies

The increasing use of combined cycle plants as part of a power system's generation mix brings an industry need for modeling these types of plants in assessments of system dynamic performance. This need is more acute in some developing countries where combined cycle plants form a significant proportion of the system's generating capacity. This paper is the third of a series of papers prepared by the Working Group on Prime Mover and Energy Supply Models for System Dynamic Performance Studies. It describes various aspects of combined cycles made up of gas turbines, waste heat recovery boilers and steam turbines and develops models designed to simulate the response of the combined cycle plant for use in system dynamic performance studies     

联合循环供热电厂水处理设备配置

介绍了漕泾电厂燃气-蒸汽联合循环供热机组的化学水处理设备装置的组成配置情况,分析了超滤、反渗透及除盐系统的工艺流程,归纳了该套化学水处理系统的技术特点.     

燃气-蒸汽联合循环发电机组轴系配置的思考

燃气-蒸汽联合循环发电机组因高效、节能、环保而越来越受到重视,为此,从我国当前大力发展燃气-蒸汽联合循环发电机组的实际情况出发,全面分析联合循环机组轴系的配置型式及其影响,重点比较了单轴和多轴“2拖1”机组在设备投资、占地面积、建设周期、起动停机、功率和效率、检修和控制系统方面的优缺点,为燃气-蒸汽联合循环发电新机组建设的轴系配置提供参考。     

Simulation of processes in natural-circulation circuits of heat-recovery boilers of combined cycle power plants

Mathematical fundamentals of development of models of natural-circulation circuits of heat-recovery boilers are considered. Processes in the high-pressure circuit of a P-96 boiler are described.     

世界原子能电站现状

介绍了世界原子能电站分布情况与世界顶级核电机组。世界现有原子能电站主要分布在工业化国家。正在建设的核电机组分布在亚洲、中欧和东欧地区 ,欧美则处于停滞状态。一方面由于地区性电力短缺和天然气价格暴涨等因素 ,另一方面由于核电站在减少发电成本、提高安全性上取得进步 ,美国等国家已增加了核电发电量     

The cogeneration steam turbine of the T-63/76-8.8 type for a series of PGU-300 combined cycle power plants

This paper describes in detail the design of the T-63/76?C8.8 steam turbine manufactured by Ural Turbine Works (refurbished significantly), its electrohydraulic control and protection system made according to the current requirements on control and protection, the heat flow diagram, and arrangement of the turbine. The T-63/76?C8.8 steam turbine is intended to be used in double-shaft double-circuit combined-cycle monoblocks at a number of thermal power plants currently under construction. The turbine has a great future, since it may be employed in various combinations with gas turbine units having the output of 150?C170 MW that are manufactured by virtually all firms.     

世界上最好最贵的LED灯泡

据报道，CCrane公司在近日推出了一款超级节能灯泡，Geo BulbLED灯泡，该公司声称这是世界上最好的灯泡。     

Comparative analysis of cooling systems for energy equipment of combined heat and power plants and nuclear power plants

In the 20th century, the thermal power engineering in this country was oriented toward oncethrough cooling systems. More than 50% of the CHPP and NPP capacities with once-through cooling systems put into operation before the 1990s were large-scale water consumers but with minimum irretrievable water consumption. In 1995, the Water Code of the Russian Federation was adopted in which restrictions on application of once-through cooling systems for newly designed combined heat and power plants (CHPPs) were introduced for the first time. A ban on application of once-through systems was imposed by the current Water Code of the Russian Federation (Federal law no. 74-FZ, Art. 60 Cl. 4) not only for new CHPPs but also for those to be modified. Clause 4 of Article 60 of the Water Code of the Russian Federation contravenes law no. 7-FZ “On Protection of the Environment” that has priority significance, since the water environment is only part of the natural environment and those articles of the Water Code of the Russian Federation that are related directly to electric power engineering, viz., Articles 46 and 62. In recent decades, the search for means to increase revenue charges and the economic pressure on the thermal power industry caused introduction by law of charges for use of water by cooling systems irrespective of the latter’s impact on the water quality of the source, the environment, the economic efficiency of the power production, and the living conditions of the people. The long-range annual increase in the water use charges forces the power generating companies to switch transfer once-through service water supply installations to recirculating water supply systems and once-through–recirculating systems with multiple reuse of warm water, which drastically reduces the technical, economic, and ecological characteristic of the power plant operation and also results in increasing power rates for the population. This work comprehensively substantiates the demands of power engineering specialists that the ban on development and construction of once-through service water supply systems should be lifted and the proposals for new parameters, e.g., temperature and back pressure, for designing low-potential equipment of steam-gas and steam-power plants.