EN汽轮机深度调峰的水蚀问题研究
Study on Water Erosion in Deep Peak Shaving of Steam Turbine
- 发电技术 2021年42卷第4期 页码：473-479
- 作者机构：
哈尔滨汽轮机厂有限责任公司, 黑龙江省 哈尔滨市 150046
- 作者简介：
[ "刘云锋(1981), 男, 硕士, 高级工程师, 主要从事汽轮机叶片设计工作, liuyunfeng_1981@126.com" ]
[ "李宇峰(1972), 男, 博士, 研究级高工, 主要从事叶片结构设计、强度考核、气动技术研究, liyf@harbin-electric.com" ]
[ "王健(1985), 男, 硕士, 高级工程师, 主要从事流体动力学仿真分析和汽轮机叶片设计工作, changjoy5@163.com" ]
[ "马义良(1983), 男, 高级工程师, 主要从事叶片机械安全性考核和评估, MAYL83@163.com" ]
[ "关淳(1989), 男, 博士, 工程师, 主要从事叶片安全性评估、气动分析、叶片智能运维技术开发工作, 511298664@qq.com" ]
- 基金信息：
DOI：10.12096/j.2096-4528.pgt.21012
中图分类号： TK26收稿：2021-02-23，
纸质出版：2021-08-31
- 稿件说明：
移动端阅览
刘云锋, 李宇峰, 王健, 等. 汽轮机深度调峰的水蚀问题研究[J]. 发电技术, 2021,42(4):473-479.
Yunfeng LIU, Yufeng LI, Jian WANG, et al. Study on Water Erosion in Deep Peak Shaving of Steam Turbine[J]. Power Generation Technology, 2021, 42(4): 473-479.
刘云锋, 李宇峰, 王健, 等. 汽轮机深度调峰的水蚀问题研究[J]. 发电技术, 2021,42(4):473-479. DOI： 10.12096/j.2096-4528.pgt.21012.
Yunfeng LIU, Yufeng LI, Jian WANG, et al. Study on Water Erosion in Deep Peak Shaving of Steam Turbine[J]. Power Generation Technology, 2021, 42(4): 473-479. DOI： 10.12096/j.2096-4528.pgt.21012.
摘要
为研究汽轮机深度调峰引起的末级动叶片水蚀问题，提高机组的寿命，采用计算分析与机组运行经验结合的方法，在现有研究成果的基础上，结合合理的推论，综合考虑背压和负荷对水蚀的影响，建立了以相对容积流量为基准的叶片水蚀衡量方法。研究结果表明：随着相对容积流量减小，动叶水蚀部位从应力较小的顶部进汽边转移到应力较大的根部出汽边，危险性增大；动叶片水蚀率也随相对容积流量减小呈现出先上升、后下降、再上升的变化趋势，阶段间的转折点均对应一种平衡状态。
Abstract
In order to improve the life of the unit
and study the water erosion of the last stage moving blade caused by the deep peak shaving of steam turbine
this paper established a method to measure the water erosion of blade based on relative volumetric flow. The calculation analysis with operating experiences of the unit was employed. The influence of back pressure and load on water erosion comprehensively was taken into account. The results show that
with the decrease of relative volumetric flow rate
the water erosion part of the rotor blade is transferred from the top steam inlet side with lower stress to the root steam outlet side with higher stress. It results in the increase of risk. With the decrease of relative volume flow
the water erosion rate of moving blade shows three stages: first increasing
then decreasing
and rising finally. The turning point between stages corresponds to a balanced state.
关键词
Keywords
references
国家能源局. 2019年光伏发电并网运行情况[EB/OL ] . (2020-02-28)[2021-01-20 ] . http://www.nea.gov.cn/2020-02/28/c_138827923.htm http://www.nea.gov.cn/2020-02/28/c_138827923.htm .
National Energy Administration. Grid connected operation of photovoltaic power generation in 2019[EB/OL ] . (2020-02-28)[2021-01-20 ] . http://www.nea.gov.cn/2020-02/28/c_138827923.htm http://www.nea.gov.cn/2020-02/28/c_138827923.htm .
国家能源局. 2019年风电并网运行情况[EB/OL ] . (2020-02-28)[2021-01-20 ] . http://www.nea.gov.cn/2020-02/28/c_138827910.htm http://www.nea.gov.cn/2020-02/28/c_138827910.htm .
National Ener gy Administration. Grid connected operation of wind power generation in 2019[EB/OL ] . (2020-02-28)[2021-01-20 ] . http://www.nea.gov.cn/2020-02/28/c_138827910.htm http://www.nea.gov.cn/2020-02/28/c_138827910.htm .
国家发展和改革委员会. 天然气发展"十三五"规划[EB/OL ] . (2016-12-24)[2021-01-20 ] . https://www.ndrc.gov.cn/xxgk/zcfb/tz/201701/W020190905516265616600.pdf https://www.ndrc.gov.cn/xxgk/zcfb/tz/201701/W020190905516265616600.pdf .
National Development and Reform Commission. The 13th Five-Year Plan for natural gas development[EB/OL ] . (2016-12-24)[2021-01-20 ] . https://www.ndrc.gov.cn/xxgk/zcfb/tz/201701/W020190905516265616600.pdf https://www.ndrc.gov.cn/xxgk/zcfb/tz/201701/W020190905516265616600.pdf .
吴炬. 东北地区火电机组灵活性改造技术研究及策略分析[J]. 黑龙江电力, 2020, 42(5): 443-446.
WU J. Flexibility transformation technology research and strategy analysis of thermal power units in Northeast China[J]. Heilongjiang Electric Power, 2020, 42(5): 443-446.
潘尔生, 田雪沁, 徐彤, 等. 火电灵活性改造的现状、关键问题与发展前景[J]. 电力建设, 2020, 41(9): 58-68.
PAN E S, TIAN X Q, XU T, et al. Status, critical problems and prospects of flexibility retrofit of thermal Power in China[J]. Electric Power Construction, 2020, 41(9): 58-68.
贾科华. 火电灵活性改造势在必行[N]. 中国能源报, 2016-07-11(003).
JIA K H. Flexible transformation of thermal power plant is imperative[N]. China Energy News, 2016-07-11(003).
王林, 伍刚, 张亚夫, 等. 1000MW深度调峰机组热力系统优化研究[J]. 发电技术, 2019, 40(3): 265-269.
WANG L, WU G, ZHANG Y F, et al. Thermodynamic system optimization research on 1000MW deep peak-regulating unit[J]. Power Generation Technology, 2019, 40(3): 265-269.
李树明, 刘青松, 朱小东, 等. 350MW超临界热电联产机组灵活性改造分析[J]. 发电技术, 2018, 39(5): 449-454.
LI S M, LIU Q S, ZHU X D, et al. Flexibility transformation analysis of 350MW supercritical cogeneration unit[J]. Power Generation Technology, 2018, 39(5): 449-454.
焦庆丰, 雷霖, 李明, 等. 国产600MW超临界机组宽度调峰试验研究[J]. 中国电力, 2013, 46(10): 1-4.
JIAO Q F, LEI L, LI M, et al. Testing on domestically-made 600MW supercritical units in broad peak-regulation of power grids[J]. Electric Power, 2013, 46(10): 1-4.
范鑫, 秦建明, 刘静宇, 等. 超临界600MW汽轮机低负荷运行优化技术研究[J]. 中国电力, 2012, 45(11): 18-21.
FAN X, QIN J M, LIU J Y, et al. Study on optimization of low load operation for supercritical 600MW steam turbines[J]. Electric Power, 2012, 45(11): 18-21.
孙振平, 丁佳鹏, 单世超. 核电机组低负荷运行对汽轮机低压末级动叶水蚀的影响[J]. 汽轮机技术, 2019, 61(5): 392-394.
SUN Z P, DING J P, SHAN S C. The effect of low load operation of nuclear power unit on water erosion of low pressure last stage moving blades of steam turbine[J]. Turbine Technology, 2019, 61(5): 392-394.
HATTORI S, KAKUICHI M. Effect of impact angle on liquid droplet impingement erosion[J]. Wear, 2013, 298: 1-7.
AHMAD M, CASEY M, S RKEN N. Experimental assessment of droplet impact erosion resistance of steam turbine blade materials[J]. Wear, 2009, 267(9/10): 1605-1618.
DI J, WANG S S, YAN X J, et al. Experimental research on water droplet erosion resistance characteristics of turbine blade substrate and strength-ened layers materials[J]. Materials, 2020, 13(19): 4286.
ORNA M, RUML Z. A contribution to the erosion resistance of turbine blade materials[C]//International Conference on Erosion by Liquid and Solid Impact. 1979: 1-23
鄢宇鹏, 孙弼, 蔡颐年. 汽轮机动叶片水蚀问题的研究[J]. 汽轮机技术, 1994, 36(5): 305-315.
YAN Y P, SUN B, CAI Y N. Study on water erosion of steam turbinerotate blades[J]. Turbine Technology, 1994, 36(5): 305-315.
罗立权, 张继东, 俞路军, 等. 1000MW超超临界汽轮机排汽焓和冷端能量损失模型[J]. 热力透平, 2016, 45(4): 294-298.
LUO L Q, ZHANG J D, YU L J, et al. A model of exhaust enthalpy and energy loss in cold end for 1000MWUSC steam turbines[J]. Thermal Turbine, 2016, 45(4): 294-298.
杨光海. 汽轮机叶片的安全防护[M]. 北京: 机械工业出版社, 1992.
YANG G H. Safety protection of turbine blades[M]. Beijing: China Machine Press, 1992.
姚秀平, 俞茂铮, 孙弼, 等. 核电600MW汽轮机末级空心静叶去湿缝设计研究[J]. 动力工程学报, 1998(4): 7-14.
YAO X P, YU M Z, SUN B, et al. Design of the water removing suction slots for the last stage hollow blades of a 600MW nuclear power plant turbine[J]. Chinese Journal of Power Engineering, 1998(4): 7-14.
施红辉, 俞茂铮, 蔡颐年. 汽轮机低压级动叶的水蚀机理及水蚀准则[J]. 热力发电, 1990(4): 29-34.
SHI H H, YU M Z, CAI Y N. Water erosion mechanism and criterion of low pressure stage rotor blade of steam turbine[J]. Thermal Power Generation, 1990(4): 29-34
刘云锋, 李宇峰, 管继伟, 等. 汽轮机静叶片除湿结构对比分析[J]. 汽轮机技术, 2014, 56(6): 412-414.
LIU Y F, LI Y F, GUAN J W, et al. Comparison and analysis about moisture removal configurations of stationary blade on steam turbine[J]. Turbine Technology, 2014, 56(6): 412-414.
袁波. 激光熔凝高速火焰喷涂CoNiCrWC抗水蚀层的实验研究[D]. 衡阳: 南华大学, 2010.
YUAN B. Experimental study of anti-erosion of HVOF CoNiCrWC coating by laser melting[D]. Hengyang: University of South China, 2010.
吴超, 刘建明, 高峰, 等. 超音速火焰喷涂WC-MoCoB涂层的制备和性能研究[J]. 热喷涂技术, 2020, 12(3): 44-53.
WU C, LIU J M, GAO F, et al. Preparation and properties of WC-MoCoB coating by high-velocity oxygen-fuel spraying[J]. Thermal Spray Technology, 2020, 12(3): 44-53.
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