【精品文档】35中英文双语外文文献翻译成品：能源工程中1000兆瓦电厂锅炉给水泵机组的节能降耗比较分析

此文档是毕业设计外文翻译成品（ 含英文原文+中文翻译），无需调整复杂的格式！下载之后直接可用，方便快捷！本文价格不贵,也就几十块钱！一辈子也就一次的事！外文标题：A Comparison Analysis of Boiler Feed-water Pump Set for The 1000MW Power Plant with Energy Saving in Energy Engineering外文作者：J Shen ， ZH Huang ， JM Wang ， CL Zhang ， C Ma文献出处:Advanced Materials Research , 2018 , 648 :241-246(如觉得年份太老，可改为近2年，毕竟很多毕业生都这样做英文2057单词， 11989字符(字符就是印刷符)，中文3201汉字。A Comparison Analysis of Boiler Feed-water Pump Set for The 1000MW Power Plant with Energy Saving in Energy EngineeringKeywords: Feed-water pump set, Economics, Optimal configuration.Abstract: This article compares the domestic configurations of the boiler feed-water pump for 1000MW units, and takes the technical and economic comparison of the feed-water pump type selection. Analyzed diverse configurations of the boiler feed-water pump set. For example, to 1000MW units boiler feed-water pump set in a factory, obtained relatively optimal configuration of feed-water pump in connection with various technical and economic index.1. The feed-water pump set configuration overview of 1000MW ultra-supercritical units1.1 The feed-water pump set configuration of domestic 1000MW unitsAs the increasing of installed capacity and scale of thermal power units, it is taken seriously more and more for auxiliary equipment. In the conventional thermal power units, the feed-water pump is the maximum energy consumption in auxiliary equipment of power plant, usually occupies 2%4% main power 1.Traditional configuration of feed-water pump of large capacity units is two 50% capacity turbine-driven feed-water pump as regular running, a 25%50% capacity motor-driven feed-water pump as start/standby. When a turbine-driven feed-water pump is failure, the other can guarantee the unit over 75% loads. But with the increasing reliability of turbine-driven feed-water pump and its quick-fix capability, the standby functions of motor-driven feed-water pump set have reduced. When the motor-driven feed-water pumps is standby, pump head is near the turbine-driven feed-water pump for operating in parallel with turbine-driven feed-water pumps to maintain the high load. With the increasing of capacity and parameters, the investment of motor-driven feed-water pump is improving. Current domestic configurations of pump are shown in table 1.1.2The feed-water pump set configuration of abroad 1000MW unitsAccording to the reported, United States 1000MW ultra-supercritical units used two 50% capacity turbine-driven feed-water pump, or two 60% capacity turbine-driven feed-water pump, or a 100% capacity turbine-driven feed-water pump as regular running, and no motor-driven feed-water pump.The boiler feed-water pump configurations of most 1000MW ultra-supercritical units in Japan aresame as earlier units in China, using two 50% capacity turbine-driven feed-water pump as regular running, a 25% capacity motor-driven feed-water pump as start/standby. In recent years, advanced thermal power in Germany, 1000MW ultra-supercritical units adopt a 100% capacity turbine-drivenfeed-water pump as regular running, a 40% capacity-motor driven feed-water pump as start/standby.Foreign configurations of feed-water pump of 1000MW units are shown in table 2.2.Configuration of turbine-driven feed-water pump set1.1The capacity choices of turbine-driven feed-water pump of 1000MW ultra-supercritical units Most domestic 1000MW ultra-supercritical units select two 50% capacity turbine-driven feed-water pump. As shown from table 1, other projects are configured two 50% capacity turbine-driven feed-water pump except for the third phase project of Waigaoqiao. The early running units such as Yuhuan, Zhouxian, and Taizhou power plant are configured a 25% capacity motor-driven feed-water pump as start/standby, and later running units such as Beilungang, Haimen, Lingwu and Chaozhou power plant are configured a 30% capacity motor-driven feed-water pump as start, and no standby features; the third phase project of Waigaoqiao, Ninghai, Suizhong, Jinling and under construction projects such as Hezhou, Puqi and Hanchuan power plant are not configured motor-driven feed-water pump. Early running feed-water pump and driven-turbine of 1000MWultra-supercritical units are imported products, the later running feed-water pump of Beilungang, Haimen project are imported products, the driven-turbine of feed-water pump are Hangzhou steam turbine plant products, and under construction projects adopting domestic equipment.1.2 The technical project comparison of turbine-driven feed-water pump of 1000MW ultra-supercritical unitsCompared to 100% and 50% capacity turbine-driven feed-water pump, the pump matches the unit load in 40100% load range, and the system is simple, operation and regulation is simple, the controllability is good. The main pump, booster pump and driven-turbine of feed-water pump set have high efficiency, for example the 100% capacity feed-water pump increased about 2% efficiency than 50% capacity feed-water pump.According to the operating data of feed-water pump and the driven-turbine at home and abroad, its reliability is ensured in long-term safe and stable operation of units, regardless of being configured 100% capacity turbine-driven feed-water pump set or two 50% capacity turbine-driven feed-water pump set, the overhaul interval can definitely same with the main turbine or longer. At present, research found that the tripped fault of feed-water pump did not occur due to drive-turbine fault in the large units in service.The comparison of power generation design standard coal consumption and annual coal consumption of the two units is shown in table 3, respectively configuring with 100% capacity and two 50% capacity turbine-driven feed-water pump.Table 3 Technical and economic index of different configuration project of feed-water pump set unit:（WanYuan)2.3 Economic comparison of turbine-driven feed-water pump set of 1000MWultra-supercritical unitsAt present there is not produce 100% capacity feed-water pump and 100% capacity driven turbine of 1000MW ultra-supercritical units at domestic. Feed-water pumps and driven turbines must be imported if adopted a 100% capacity feed-water pump. Abroad factories are limited, confined to European companies, such as SULZER, KSB, turbine manufacturers such as Siemens and Alstom. Manufacturers are too limit, not been possible to organize tenders, can only be used directly on the standard way; on the subject procurement is not sufficiently competitive, no price effective control. The pump manufacturers of 50% capacity are relatively more, foreign manufacturers such as Sulzer, KSB, Ebara, Hitachi and Mitsubishi; domestic manufacturers such as Shanghai electric power factory, Shanghai Kaishibi pump company, and Shenyang water pump factory. Manufacturers of the 50% capacity of driven turbine have many, abroad manufacturers such as Siemens, Alstom, Mitsubishi and Toshiba, domestic manufacturers such as China Dongfang steam turbine Co.Ltd. And Hangzhou steam turbine Co.Ltd.Currently domestic running 1000MW ultra-supercritical unit, only the Waigaoqiao third phase project used 100% capacity driven-turbine feed-water pump, system regulation simple and unit forced down rate significantly reduced, it has caused multi-concern. As the improved of domestic equipment manufacturing capacity, it will become future development trend that configuring 100% capacity driven-turbine feed-water pump for 1000MW ultra-supercritical unit. 1000MW ultra-supercritical units are selected two 50% capacity turbine-driven feed-water pump except for the Waigaoqiao third phase project. Using two 50% capacity turbine-driven feed-water pump, feed pumps and driven-turbines can be obtained in domestic, reducing unit costs, improving unit equipment localization rate.3.The motor-driven feed-water pump configuration of 1000MW ultra-supercritical units3.1 The capacity choices of motor-driven feed-water pump of 1000MW Ultra-supercritical unitsTo improve the economy of unit operation, usually using turbine-driven feed-water pump as normal operating for the 1000MW ultra-supercritical generating units, at the same time in order to meet the requirements of units started flexible, generally equipped with motor-driven feed-water pumps. Functions of motor-driven feed-water pump in units are as startup and start/standby.For the 1000MW ultra-supercritical units, the choice of motor-driven feed-water pump must meet the minimum DC load of 1000MW ultra-supercritical boiler as start; meet that unit produced enough high pressure steam to driven turbine, supply boiler water with required water flow and pressure, in order to shutdown motor-driven feed-water pump.As start/standby features, the motor-driven feed-water pumps also requires enough high head in addition to considering these two requirements, to achieve high load as much as possible, when it is running with a turbine-driven feed-water pump in parallel operation. While the unit is running in different ways, configuration of motor-driven feed-water pumps have different capacities, the sustain load is different with the two pumps running side-by-side3.2 Cancel standby function project of motor-driven feed-water pump of 1000MWultra-supercritical unitsAt present, according to the running statistical data over more than 800 pumps provided by domestic feed-water pump manufacturers, its non-planned outage rate is only 0.007%0.406% because of constantly improved the quality of feed-water pump and quick repair capacity. In addition, the cost of motor-driven governing standby feed-water pumps is significantly higher than just as a start of motor-driven governing pumps for a 1000MW ultra-supercritical unit taking into account the initial investment (in 25% capacity, its price different up to 14.92 million dollars). Therefore, it is feasible on technically to cancel the standby function of motor-driven feed-water pump and leave only the start functions, and its investment efficiency is obvious.When the motor-driven feed-water pump only as start pump of, taking into account the two units do not start at the same time, in order to save investment, common configurations a start pump for the same phase of two units. At this time, the starting feed-water system designed with the expanded unit because of the peripheral systems capacity limits such as auxiliary steam systems. The expanding unit system is relatively complex, in addition to the length of low pressure and high pressure water supply pipes of the motor-driven feed-water pump branch will be substantially increased, the number of high pressure switch isolation valve (imports) increased quantities, water recycling systems are complex. The length increasing of low pressure water supply pipes led to the amount of pipe consumption and pipe layout more difficult, as same as the high pressure water supply pipe, all these increased investment.When the motor-driven feed-water pumps only as start, selected using fixed-speed pump or speed regulating pump. Compared with the constant-speed pump, the speed regulating pump control flexible, it has higher economic when a long time boiler cleaning during the unit start-up, but the initial investment of equipment is increase.Cancel totally the motor-driven feed-water pump project of 1000MW ultra-supercritical units.It requires complex alternate conditions if the motor-driven feed-water pump set timely input and alternative the fault turbine-driven feed-water pump set, such as the motor-pump is always be hot, the oil system is constantly keep running, the pump outlet check valve is take pressure in long-term, the pump can input automatically through electrical systems set. 4.ConclusionThe ultra-supercritical unit has the rapid development in recent years, as a driven-turbine and boiler feed-water pump for auxiliary machine manufacturing technologies mature, run level is gradually increasing in power plants, running also accumulated rich experience, for turbine-driven feed-water pump will lower the accident rate. In this case, cancel the motor-driven pumps startup and standby features, save investment more apparent at the beginning.But, after all domestic ultra-supercritical unit running does not long, as introduction, digestive absorption, and improve localization rate is in guarantee unit security run primary, so 1000MW ultra-supercritical units recommended using turbine-driven feed-water pump as run pump; each unit should be separate set a motor-driven regulating speed feed-water pump only as started features, its capacity meet unit started requirements, tentative 25%30%, eventually capacity according to main turbine requirements determines.At the same time, to increase the flexibility of unit operation, recommended units set aside for turbine driven feed-water pump started directly the unit, the start boiler matches with the motor-driven feed-water pump startup selection, the selecting pipe diameter of auxiliary steam manifold and driven-turbine adjusting steam pipes is according to the steam consumption calculations balancing by turbine-driven feed-water pump starting unit.References1 Ding Jiafeng, Qi Jing, Wu Zhixiang: The economic comparison of feed-water pump drivenscheme for large thermal power unit, Energy Conservation, 2011,(11,12), p:84-882 WANG Bo, YANG Jian-men, FENG Xue, ZHANG Jing-tao, ZHONG Lei: An Extensive Matter-elementEvaluation Method on Running State of the Power Plant Feed-water Pump,Turbine Technology, Vol.53, No.6 (2011), p:452-4543 LIN Canming, CHEN Nuanwen: Study of Frequency Control Transformation of FeedwaterPump, Guangdong Electric Power, Vol.23, No.3 (2010), p: 76-794 Zhang Yun: Discusion on Type Selection of Boiler Fed Pump in an Indian Project, GuangdongElectric Power, Vol.25, No.4 (2012), p: 88-91能源工程中1000兆瓦电厂锅炉给水泵机组的节能降耗比较分析 关键词：给水泵组，经济性，最佳配置摘要：在本文中，对1000兆瓦机组锅炉给水泵的国内配置方面进行了比较，并对给水泵类型的选择进行了技术和经济上的比较。 分析了锅炉给水泵组的不同配置。 例如，对工厂设置的1000MW机组锅炉给水泵，结合各项技术经济指标得到了较为理想的给水泵配置。1.1000MW超临界机组给水泵组配置概述1.1国产1000MW机组给水泵组配置 随着火电机组装机容量和规模的不断增加，其辅机越来越受到重视。在常规火电机组中，给水泵是电厂辅助设备的最大能耗，通常占主电源的241。大容量机组给水泵传统配置为两台50容量的涡轮驱动给水泵，为保持正常运行，一台2550容量的电动给水泵作为启动/待机。当一台涡轮驱动的给水泵发生故障时，另一台可以保证超过75的负载。但随着汽轮机给水泵可靠性的提高及其快速固定能力，电动给水泵组的待机功能已经降低。当电动给水泵处于待机状态时，泵头靠近涡轮驱动的给水泵，与涡轮驱动的给水泵并联运行，以保持高负载。随着容量和参数的增加，对电动给水泵的投入正在提高。表1显示了目前国内泵的配置。 1.2国外1000MW机组给水泵机组配置 据报道，美国1000MW超临界机组采用两台容量为50的涡轮驱动给水泵，或两台60容量的汽轮机驱动给水泵或100容量的汽轮机驱动给水泵。作为正常运行，并且没有电动给水泵。日本大多数1000MW超临界机组的锅炉给水泵配置与中国早期的机组相同，使用两个50容量的涡轮驱动给水泵作为定期运行，25容量电机驱动的给水泵作为启动/待机。 近年来，德国的先进火电，1000MW超临界机组采用100容量的汽轮机水泵作为正常运行，40容量电机驱动的给水泵为启动/待机。表1给出了1000MW机组给水泵的外形结构。 2.涡轮驱动给水泵组的配置 2.1 1000MW超超临界机组汽轮机给水泵的容量选择 国内大部分1000MW超临界机组选用两台50容量的汽轮机给水泵。如表1所示，除外高桥三期工程外，其他项目均配置两台50容量的汽轮机给水泵。玉环，周县，泰州电厂等早期运行机组配置25容量的电动给水泵作为启动/待机，后期运行的机组如北仑港，海门，灵武，潮州等电厂配置为30容量的电机驱动给水泵作为启动，并且没有待机功能;外高桥，宁海，绥中，金陵三期工程和贺州，蒲岐，汉川电厂等在建工程未配置电动给水泵。 1000MW超临界机组早期运行给水泵和驱动汽轮机为进口产品，北仑港后期运行给水泵，海门项目为进口产品，给水泵驱动汽轮机为杭汽轮机厂产品以及正在建设中的项目采用国内设备。2.2 1000MW超超临界机组汽轮机给水泵技术项目比较 与100和50容量的涡轮驱动给水泵相比，该泵在40100负载范围内与单位负载匹配，系统操作简单，调节简单，可控性好。给水泵组的主泵，增压泵和驱动汽轮机效率较高，例如100容量给水泵的效率比50给水泵提高了2左右。 根据国内外给水泵和从动汽轮机的运行数据，无论是否配置100容量的汽轮机给水泵组，都能保证机组长期安全稳定运行的可靠性或两个50容量的涡轮驱动给水泵组，检修间隔可以与主涡轮完全相同或更长。目前，研究发现，由于大型机组在运行中的驱动 - 涡轮故障，没有发生给水泵跳闸故障。 表3给出了两台机组发电设计标准煤耗与年用煤量的比较，分别配置100容量和两台50容量的汽轮机给水泵。 表3给水泵机组不同配置项目的技术经济指标：万源） 2.3涡轮驱动给水泵组1000MW的经济性比较 超超临界机组 目前国内没有生产1000MW超超临界机组100容量给水泵和100容量驱动的水轮机.。如果采用100容量的给水泵，则必须进口给水泵和驱动涡轮机。国外工厂有限，仅限于欧洲公司，如SULZER，KSB，涡轮机制造商如西门子和阿尔斯通。制造商太有限，没有可能组织投标，只能用标准方式直接使用;关于主题采购没有足够的竞争力，价格也没有有效的控制。 50容量的泵制造商相对较多，国外制造商如苏尔寿，KSB，E原，日立和三菱;国内厂商如上海电力厂，上海凯什比泵业公司，沉阳水泵厂等。 50的驱动涡轮机制造商拥有许多国外制造商，如西门子，阿尔斯通，三菱和东芝，国内制造商如中国东方汽轮机有限公司。和杭州汽轮机股份有限公司。 目前国内运行1000MW超超临界机组，只有外高桥三期工程采用100容量驱动的汽轮机给水泵，系统调节简单，机组强制降速率明显降低，引起多方关注。随着国产设备制造能力的提高，为1000MW超超临界机组配套100容量驱动的汽轮机给水泵将成为未来的发展趋势。除外高桥三期工程外，选用1000MW超超临界机组两台50容量的汽轮机给水泵。采用两台50容量的涡轮驱动给水泵，可在国内获得进料泵和驱动涡轮机，降低单位成本，提高机组设备国产化率。3. 1000MW超临界机组电动给水泵配置3.1 1000MW超临界机组电动给水泵的容量选择 为提高机组运行的经济性，通常采用汽轮机驱动的给水泵作为1000MW超超临界机组的正常运行，同时为了满足机组启动灵活的要求，一般采用电动机驱动给水泵。电机驱动给水泵在机组中的功能是启动和启动/待机。 对于1000MW超临界机组，电动给水泵的选择必须满足1000MW超超临界锅炉的最低直流负荷要求;满足该单元产生足够的