35中英文雙語(yǔ)外文文獻(xiàn)翻譯成品能源工程中1000兆瓦電廠鍋爐給水泵機(jī)組的節(jié)能降耗比較分析

1、<p>　　外文標(biāo)題：A Comparison Analysis of Boiler Feed-water Pump Set for The 1000MW Power Plant with Energy Saving in Energy Engineering</p><p>　　外文作者：J Shen ， ZH Huang ， JM Wang ， CL Zhang ， C Ma</p>

2、<p>　　文獻(xiàn)出處:《Advanced Materials Research》 , 2013 , 648 :241-246</p><p>　　英文2057單詞， 11989字符，中文3201漢字。</p><p>　　此文檔是外文翻譯成品，無(wú)需調(diào)整復(fù)雜的格式哦！下載之后直接可用，方便快捷！只需二十多元。</p><p>　　A Comparison A

3、nalysis of Boiler Feed-water Pump Set for The 1000MW Power Plant with Energy Saving in Energy Engineering</p><p>　　Keywords: Feed-water pump set, Economics, Optimal configuration.</p><p>　　Abstr

4、act: 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 configuration

5、s 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 in

6、dex.</p><p>　　The feed-water pump set configuration overview of 1000MW ultra-supercritical units</p><p>　　The feed-water pump set configuration of domestic 1000MW units</p><p>　　As

7、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 consu

8、mption in auxiliary equipment of power plant, usually occupies 2%~4% main power [1].</p><p>　　Traditional configuration of feed-water pump of large capacity units is two 50% capacity turbine-driven feed-wate

9、r 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 reli

10、ability 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 f</p><p>　　1.2The feed-water pump set con

11、figuration of abroad 1000MW units</p><p>　　According to the reported, United States 1000MW ultra-supercritical units used two 50% capacity turbine-driven feed-water pump, or two 60% capacity turbine-driven f

12、eed-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 aresam

13、e as earlier units in China, using two 50% capacity turbine-driven feed-water pump as regular running, a 25% capacit</p><p>　　2.Configuration of turbine-driven feed-water pump set</p><p>　　1.1Th

14、e capacity choices of turbine-driven feed-water pump of 1000MW ultra-supercritical units </p><p>　　Most domestic 1000MW ultra-supercritical units select two 50% capacity turbine-driven feed-water pump. As sh

15、own 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

16、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 configu</p><p>　　.1.2 The technical projec

17、t comparison of turbine-driven feed-water pump of 1000MW ultra-supercritical units</p><p>　　Compared to 100% and 50% capacity turbine-driven feed-water pump, the pump matches the unit load in 40~100% load ra

18、nge, 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 fe

19、ed-water pump increased about 2% efficiency than 50% capacity feed-water pump.</p><p>　　According to the operating data of feed-water pump and the driven-turbine at home and abroad, its reliability is ensure

20、d 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 definit

21、ely 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 la</p><p>　　The comparison of power generation d

22、esign 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.</p><p>　　Tab

23、le 3 Technical and economic index of different configuration project of feed-water pump set unit:WanYuan)</p><p>　　2.3 Economic comparison of turbine-driven feed-water pump set of 1000MW</p><p>

24、　　ultra-supercritical units</p><p>　　At 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 drive

25、n 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 a

26、re too limit, not been possible to organize tenders, can only be used directly on the standard way; on the sub</p><p>　　Currently domestic running 1000MW ultra-supercritical unit, only the Waigaoqiao third p

27、hase 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 c

28、apacity, 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</p><p>　　3.Th

29、e motor-driven feed-water pump configuration of 1000MW ultra-supercritical units</p><p>　　3.1 The capacity choices of motor-driven feed-water pump of 1000MW Ultra-supercritical units</p><p>　　To

30、 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 st

31、arted flexible, generally equipped with motor-driven feed-water pumps. Functions of motor-driven feed-water pump in units are as startup and start/standby.</p><p>　　For the 1000MW ultra-supercritical units,

32、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 requi

33、red water flow and pressure, in order to shutdown motor-driven feed-water pump.</p><p>　　As start/standby features, the motor-driven feed-water pumps also requires enough high head in addition to considering

34、 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-drive

35、n feed-water pumps have different capacities, the sustain load is different with the two pumps running side-by-side</p><p>　　3.2 Cancel standby function project of motor-driven feed-water pump of 1000MW</

36、p><p>　　ultra-supercritical units</p><p>　　At present, according to the running statistical data over more than 800 pumps provided by domestic feed-water pump manufacturers, its non-planned outage

37、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 ju

38、st as a start of motor-driven governing pumps for a 1000MW ultra-supercritical unit taking into account the initial investment</p><p>　　When the motor-driven feed-water pump only as start pump of, taking int

39、o 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 expan

40、ded 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 su</p>

41、<p>　　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

42、 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 requ

43、ires complex alternate conditions if the motor-driven feed-water pump se</p><p>　　4.Conclusion</p><p>　　The ultra-supercritical unit has the rapid development in recent years, as a driven-turbin

44、e 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 l

45、ower the accident rate. In this case, cancel the motor-driven pump's startup and standby features, save investment more apparent at the beginning.</p><p>　　But, after all domestic ultra-supercritical uni

46、t 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 pum

47、p 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 m

48、ain turbine r</p><p>　　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

49、 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 turbin

50、e-driven feed-water pump starting unit.</p><p>　　References</p><p>　　[1] Ding Jiafeng, Qi Jing, Wu Zhixiang: The economic comparison of feed-water pump driven</p><p>　　scheme for la

51、rge thermal power unit, Energy Conservation, 2011,(11,12), p:84-88</p><p>　　[2] WANG Bo, YANG Jian-men, FENG Xue, ZHANG Jing-tao, ZHONG Lei: An Extensive Matter-elementEvaluation Method on Running State of t

52、he Power Plant Feed-water Pump,</p><p>　　Turbine Technology, Vol.53, No.6 (2011), p:452-454</p><p>　　[3] LIN Canming, CHEN Nuanwen: Study of Frequency Control Transformation of Feedwater</p&g

53、t;<p>　　Pump, Guangdong Electric Power, Vol.23, No.3 (2010), p: 76-79</p><p>　　[4] Zhang Yun: Discusion on Type Selection of Boiler Fed Pump in an Indian Project, Guangdong</p><p>　　Elect

54、ric Power, Vol.25, No.4 (2012), p: 88-91</p><p>　　能源工程中1000兆瓦電廠鍋爐給水泵機(jī)組的節(jié)能降耗比較分析</p><p>　　關(guān)鍵詞：給水泵組，經(jīng)濟(jì)性，最佳配置</p><p>　　摘要：在本文中，對(duì)1000兆瓦機(jī)組鍋爐給水泵的國(guó)內(nèi)配置方面進(jìn)行了比較，并對(duì)給水泵類型的選擇進(jìn)行了技術(shù)和經(jīng)濟(jì)上的比較。 分析了鍋爐給

55、水泵組的不同配置。 例如，對(duì)工廠設(shè)置的1000MW機(jī)組鍋爐給水泵，結(jié)合各項(xiàng)技術(shù)經(jīng)濟(jì)指標(biāo)得到了較為理想的給水泵配置。</p><p>　　1.1000MW超臨界機(jī)組給水泵組配置概述</p><p>　　1.1國(guó)產(chǎn)1000MW機(jī)組給水泵組配置</p><p>　　隨著火電機(jī)組裝機(jī)容量和規(guī)模的不斷增加，其輔機(jī)越來(lái)越受到重視。在常規(guī)火電機(jī)組中，給水泵是電廠輔助設(shè)備的最大能耗

56、，通常占主電源的2％?4％[1]。大容量機(jī)組給水泵傳統(tǒng)配置為兩臺(tái)50％容量的渦輪驅(qū)動(dòng)給水泵，為保持正常運(yùn)行，一臺(tái)25％?50％容量的電動(dòng)給水泵作為啟動(dòng)/待機(jī)。當(dāng)一臺(tái)渦輪驅(qū)動(dòng)的給水泵發(fā)生故障時(shí)，另一臺(tái)可以保證超過(guò)75％的負(fù)載。但隨著汽輪機(jī)給水泵可靠性的提高及其快速固定能力，電動(dòng)給水泵組的待機(jī)功能已經(jīng)降低。當(dāng)電動(dòng)給水泵處于待機(jī)狀態(tài)時(shí)，泵頭靠近渦輪驅(qū)動(dòng)的給水泵，與渦輪驅(qū)動(dòng)的給水泵并聯(lián)運(yùn)行，以保持高負(fù)載。隨著容量和參數(shù)的增加，對(duì)電動(dòng)給水泵的投入

57、正在提高。表1顯示了目前國(guó)內(nèi)泵的配置。</p><p>　　1.2國(guó)外1000MW機(jī)組給水泵機(jī)組配置</p><p>　　據(jù)報(bào)道，美國(guó)1000MW超臨界機(jī)組采用兩臺(tái)容量為50％的渦輪驅(qū)動(dòng)給水泵，或兩臺(tái)60％容量的汽輪機(jī)驅(qū)動(dòng)給水泵或100％容量的汽輪機(jī)驅(qū)動(dòng)給水泵。作為正常運(yùn)行，并且沒(méi)有電動(dòng)給水泵。日本大多數(shù)1000MW超臨界機(jī)組的鍋爐給水泵配置與中國(guó)早期的機(jī)組相同，使用兩個(gè)50％容量的渦輪驅(qū)

58、動(dòng)給水泵作為定期運(yùn)行，25％容量電機(jī)驅(qū)動(dòng)的給水泵作為啟動(dòng)/待機(jī)。 近年來(lái)，德國(guó)的先進(jìn)火電，1000MW超臨界機(jī)組采用100％容量的汽輪機(jī)水泵作為正常運(yùn)行，40％容量電機(jī)驅(qū)動(dòng)的給水泵為啟動(dòng)/待機(jī)。表1給出了1000MW機(jī)組給水泵的外形結(jié)構(gòu)。</p><p>　　2.渦輪驅(qū)動(dòng)給水泵組的配置</p><p>　　2.1 1000MW超超臨界機(jī)組汽輪機(jī)給水泵的容量選擇</p><

59、;p>　　國(guó)內(nèi)大部分1000MW超臨界機(jī)組選用兩臺(tái)50％容量的汽輪機(jī)給水泵。如表1所示，除外高橋三期工程外，其他項(xiàng)目均配置兩臺(tái)50％容量的汽輪機(jī)給水泵。玉環(huán)，周縣，泰州電廠等早期運(yùn)行機(jī)組配置25％容量的電動(dòng)給水泵作為啟動(dòng)/待機(jī)，后期運(yùn)行的機(jī)組如北侖港，海門，靈武，潮州等電廠配置為30％容量的電機(jī)驅(qū)動(dòng)給水泵作為啟動(dòng)，并且沒(méi)有待機(jī)功能;外高橋，寧海，綏中，金陵三期工程和賀州，蒲岐，漢川電廠等在建工程未配置電動(dòng)給水泵。 1000MW超臨

60、界機(jī)組早期運(yùn)行給水泵和驅(qū)動(dòng)汽輪機(jī)為進(jìn)口產(chǎn)品，北侖港后期運(yùn)行給水泵，海門項(xiàng)目為進(jìn)口產(chǎn)品，給水泵驅(qū)動(dòng)汽輪機(jī)為杭汽輪機(jī)廠產(chǎn)品以及正在建設(shè)中的項(xiàng)目采用國(guó)內(nèi)設(shè)備。</p><p>　　2.2 1000MW超超臨界機(jī)組汽輪機(jī)給水泵技術(shù)項(xiàng)目比較</p><p>　　與100％和50％容量的渦輪驅(qū)動(dòng)給水泵相比，該泵在40?100％負(fù)載范圍內(nèi)與單位負(fù)載匹配，系統(tǒng)操作簡(jiǎn)單，調(diào)節(jié)簡(jiǎn)單，可控性好。給水泵組的主泵，

61、增壓泵和??驅(qū)動(dòng)汽輪機(jī)效率較高，例如100％容量給水泵的效率比50％給水泵提高了2％左右。</p><p>　　根據(jù)國(guó)內(nèi)外給水泵和從動(dòng)汽輪機(jī)的運(yùn)行數(shù)據(jù)，無(wú)論是否配置100％容量的汽輪機(jī)給水泵組，都能保證機(jī)組長(zhǎng)期安全穩(wěn)定運(yùn)行的可靠性或兩個(gè)50％容量的渦輪驅(qū)動(dòng)給水泵組，檢修間隔可以與主渦輪完全相同或更長(zhǎng)。目前，研究發(fā)現(xiàn)，由于大型機(jī)組在運(yùn)行中的驅(qū)動(dòng) - 渦輪故障，沒(méi)有發(fā)生給水泵跳閘故障。</p><

62、p>　　表3給出了兩臺(tái)機(jī)組發(fā)電設(shè)計(jì)標(biāo)準(zhǔn)煤耗與年用煤量的比較，分別配置100％容量和兩臺(tái)50％容量的汽輪機(jī)給水泵。</p><p>　　表3給水泵機(jī)組不同配置項(xiàng)目的技術(shù)經(jīng)濟(jì)指標(biāo)：萬(wàn)源）</p><p>　　2.3渦輪驅(qū)動(dòng)給水泵組1000MW的經(jīng)濟(jì)性比較</p><p><b>　　超超臨界機(jī)組</b></p><p>

63、;　　目前國(guó)內(nèi)沒(méi)有生產(chǎn)1000MW超超臨界機(jī)組100％容量給水泵和100％容量驅(qū)動(dòng)的水輪機(jī).。如果采用100％容量的給水泵，則必須進(jìn)口給水泵和驅(qū)動(dòng)渦輪機(jī)。國(guó)外工廠有限，僅限于歐洲公司，如SULZER，KSB，渦輪機(jī)制造商如西門子和阿爾斯通。制造商太有限，沒(méi)有可能組織投標(biāo)，只能用標(biāo)準(zhǔn)方式直接使用;關(guān)于主題采購(gòu)沒(méi)有足夠的競(jìng)爭(zhēng)力，價(jià)格也沒(méi)有有效的控制。</p><p>　　50％容量的泵制造商相對(duì)較多，國(guó)外制造商如蘇爾

64、壽，KSB，E原，日立和三菱;國(guó)內(nèi)廠商如上海電力廠，上海凱什比泵業(yè)公司，沉陽(yáng)水泵廠等。 50％的驅(qū)動(dòng)渦輪機(jī)制造商擁有許多國(guó)外制造商，如西門子，阿爾斯通，三菱和東芝，國(guó)內(nèi)制造商如中國(guó)東方汽輪機(jī)有限公司。和杭州汽輪機(jī)股份有限公司。</p><p>　　目前國(guó)內(nèi)運(yùn)行1000MW超超臨界機(jī)組，只有外高橋三期工程采用100％容量驅(qū)動(dòng)的汽輪機(jī)給水泵，系統(tǒng)調(diào)節(jié)簡(jiǎn)單，機(jī)組強(qiáng)制降速率明顯降低，引起多方關(guān)注。隨著國(guó)產(chǎn)設(shè)備制造能力的提

65、高，為1000MW超超臨界機(jī)組配套100％容量驅(qū)動(dòng)的汽輪機(jī)給水泵將成為未來(lái)的發(fā)展趨勢(shì)。除外高橋三期工程外，選用1000MW超超臨界機(jī)組兩臺(tái)50％容量的汽輪機(jī)給水泵。采用兩臺(tái)50％容量的渦輪驅(qū)動(dòng)給水泵，可在國(guó)內(nèi)獲得進(jìn)料泵和驅(qū)動(dòng)渦輪機(jī)，降低單位成本，提高機(jī)組設(shè)備國(guó)產(chǎn)化率。</p><p>　　3. 1000MW超臨界機(jī)組電動(dòng)給水泵配置</p><p>　　3.1 1000MW超臨界機(jī)組電動(dòng)給水

66、泵的容量選擇</p><p>　　為提高機(jī)組運(yùn)行的經(jīng)濟(jì)性，通常采用汽輪機(jī)驅(qū)動(dòng)的給水泵作為1000MW超超臨界機(jī)組的正常運(yùn)行，同時(shí)為了滿足機(jī)組啟動(dòng)靈活的要求，一般采用電動(dòng)機(jī)驅(qū)動(dòng)給水泵。電機(jī)驅(qū)動(dòng)給水泵在機(jī)組中的功能是啟動(dòng)和啟動(dòng)/待機(jī)。</p><p>　　對(duì)于1000MW超臨界機(jī)組，電動(dòng)給水泵的選擇必須滿足1000MW超超臨界鍋爐的最低直流負(fù)荷要求;滿足該單元產(chǎn)生足夠的高壓蒸汽以驅(qū)動(dòng)渦輪機(jī)，供

67、應(yīng)具有所需水流量和壓力的鍋爐水，以關(guān)閉電動(dòng)給水泵。</p><p>　　作為啟動(dòng)/待機(jī)功能，電動(dòng)給水泵在滿足這兩個(gè)要求的同時(shí)還需要足夠的高揚(yáng)程，以盡可能地實(shí)現(xiàn)高負(fù)荷，當(dāng)其與渦輪驅(qū)動(dòng)的給水泵一起運(yùn)行時(shí)并行操作。當(dāng)裝置以不同的方式運(yùn)行時(shí)，電動(dòng)給水泵的配置具有不同的容量，維持負(fù)荷與并排運(yùn)行的兩個(gè)不同的泵。</p><p>　　3.2取消1000MW電動(dòng)給水泵的待機(jī)功能項(xiàng)目</p>

68、<p><b>　　超臨界機(jī)組</b></p><p>　　目前，根據(jù)國(guó)內(nèi)給水泵制造商提供的800多臺(tái)泵的運(yùn)行統(tǒng)計(jì)數(shù)據(jù)，由于不斷提高給水泵的質(zhì)量和快速修復(fù)，其非計(jì)劃停機(jī)率僅為0.007％?0.406％容量。另外，電機(jī)驅(qū)動(dòng)控制備用給水泵的成本遠(yuǎn)遠(yuǎn)高于1000MW超超臨界機(jī)組的電動(dòng)驅(qū)動(dòng)控制泵的啟動(dòng)，考慮到初始投資（25％容量，其價(jià)格不同，達(dá)1492萬(wàn)美元）。因此，在技術(shù)上取消電動(dòng)給水泵

69、的待機(jī)功能，僅保留啟動(dòng)功能是可行的，其投資效益明顯。</p><p>　　當(dāng)電動(dòng)給水泵只作為啟動(dòng)泵使用時(shí)，考慮到兩臺(tái)機(jī)組不能同時(shí)啟動(dòng)，為了節(jié)約投資，常用配置為同一相兩臺(tái)機(jī)組啟動(dòng)一臺(tái)啟動(dòng)泵。此時(shí)，由于輔助蒸汽系統(tǒng)等外圍系統(tǒng)容量的限制，啟用的供水系統(tǒng)采用擴(kuò)展單元設(shè)計(jì)。膨脹機(jī)組系統(tǒng)比較復(fù)雜，除電機(jī)給水泵分支的低壓高壓供水管長(zhǎng)度大幅增加外，高壓開(kāi)關(guān)隔離閥（進(jìn)口）數(shù)量增加，水循環(huán)系統(tǒng)非常復(fù)雜。由于低壓供水管道長(zhǎng)度增加導(dǎo)致管

70、道消耗量和管道布置難度加大，與高壓供水管道相同，這些都增加了投資。</p><p>　　當(dāng)電動(dòng)給水泵只作為啟動(dòng)時(shí)，選用定速泵或調(diào)速泵。與定速泵相比，調(diào)速泵控制靈活，在機(jī)組啟動(dòng)時(shí)長(zhǎng)時(shí)間鍋爐清洗時(shí)具有較高的經(jīng)濟(jì)性，但設(shè)備初期投資增加。完全取消1000MW超超臨界機(jī)組的電動(dòng)給水泵項(xiàng)目，如果電動(dòng)給水泵設(shè)定及時(shí)輸入并且替代故障汽輪機(jī)給水泵組需要復(fù)雜的備用條件，如 電動(dòng)泵總是發(fā)熱，油系統(tǒng)一直保持運(yùn)轉(zhuǎn)，泵出口止回閥長(zhǎng)期承受壓力

71、，泵可以通過(guò)電氣系統(tǒng)設(shè)定自動(dòng)輸入。</p><p><b>　　4。結(jié)論</b></p><p>　　超臨界機(jī)組近年來(lái)發(fā)展迅速，作為輔機(jī)制造技術(shù)成熟的驅(qū)動(dòng)汽輪機(jī)和鍋爐給水泵，發(fā)電廠運(yùn)行水平逐漸提高，運(yùn)行也積累了豐富的經(jīng)驗(yàn)，對(duì)于汽輪機(jī)驅(qū)動(dòng)給水泵會(huì)降低事故率。在這種情況下，取消電動(dòng)泵的啟動(dòng)和待機(jī)功能，在開(kāi)始時(shí)節(jié)省更多投資。</p><p>　　但畢

72、竟國(guó)內(nèi)超臨界機(jī)組運(yùn)行時(shí)間不長(zhǎng)，由于引進(jìn)、消化吸收、提高國(guó)產(chǎn)化率是保證機(jī)組安全運(yùn)行的首要條件，因此1000MW超臨界機(jī)組推薦使用汽輪機(jī)給水泵作為運(yùn)行泵;每臺(tái)機(jī)組應(yīng)分別設(shè)置一臺(tái)電機(jī)驅(qū)動(dòng)調(diào)速給水泵作為啟動(dòng)功能，其容量滿足機(jī)組啟動(dòng)要求，暫定25％?30％，最終容量按主機(jī)要求確定。</p><p>　　同時(shí)，為增加機(jī)組運(yùn)行的靈活性，推薦單元為渦輪驅(qū)動(dòng)給水泵預(yù)留直接啟動(dòng)單元，啟動(dòng)鍋爐配合電動(dòng)給水泵啟動(dòng)選擇，選擇管徑輔助蒸汽歧

73、管和驅(qū)動(dòng)汽輪機(jī)調(diào)節(jié)蒸汽管，根據(jù)汽輪機(jī)驅(qū)動(dòng)的給水泵啟動(dòng)單元，計(jì)算蒸汽消耗量。</p><p><b>　　參考文獻(xiàn)</b></p><p>　　References</p><p>　　[1] Ding Jiafeng, Qi Jing, Wu Zhixiang: The economic comparison of feed-water pum

74、p driven</p><p>　　scheme for large thermal power unit, Energy Conservation, 2011,(11,12), p:84-88</p><p>　　[2] WANG Bo, YANG Jian-men, FENG Xue, ZHANG Jing-tao, ZHONG Lei: An Extensive Matter-el

75、ement Evaluation Method on Running State of the Power Plant Feed-water Pump,</p><p>　　Turbine Technology, Vol.53, No.6 (2011), p:452-454</p><p>　　[3] LIN Canming, CHEN Nuanwen: Study of Frequenc

76、y Control Transformation of Feedwater</p><p>　　Pump, Guangdong Electric Power, Vol.23, No.3 (2010), p: 76-79</p><p>　　[4] Zhang Yun: Discusion on Type Selection of Boiler Fed Pump in an Indian P