基于群体平衡的汽轮机动叶表面盐析颗粒分布特性

doi:10.16085/j.issn.1000-6613.2017-1765

化工进展 ›› 2018, Vol. 37 ›› Issue (02): 437-443.DOI: 10.16085/j.issn.1000-6613.2017-1765

基于群体平衡的汽轮机动叶表面盐析颗粒分布特性

胡鹏飞, 李勇, 曹丽华, 吴雪菲

东北电力大学能源与动力工程学院, 吉林吉林 132012

收稿日期:2017-08-22 修回日期:2017-10-12 出版日期:2018-02-05 发布日期:2018-02-05
通讯作者: 胡鹏飞(1985-),男,博士研究生,讲师,主要研究方向为汽轮机节能技术与优化运行。
作者简介:胡鹏飞(1985-),男,博士研究生,讲师,主要研究方向为汽轮机节能技术与优化运行。E-mail:hpf5502965@163.com。
基金资助:
国家自然科学基金（51376041）及国家重点研发计划（2017YFB0902102）项目。

Distribution characteristics of salting-out particles on the surface of steam rotor blade based on population balance model(PBM)

HU Pengfei, LI Yong, CAO Lihua, WU Xuefei

School of Energy and Power Engineering, Northeast Electric Power University, Jilin 132012, Jilin, China

Received:2017-08-22 Revised:2017-10-12 Online:2018-02-05 Published:2018-02-05

摘要/Abstract

摘要： 为深入了解汽轮机动叶内盐析颗粒的微观行为，本文以某超临界汽轮机高压级动叶为研究对象，应用计算流体力学与群体平衡模型耦合方法，对汽轮机动叶内盐析颗粒在流场中的分布进行数值模拟研究，获得了盐析颗粒在动叶内的粒径分布及不同负荷时叶片尾缘处盐析颗粒数量密度分布规律。模拟结果表明：在汽轮机动叶吸力面附近的盐析颗粒粒径较压力面附近盐析颗粒粒径小，且叶根处颗粒粒径小于叶顶处；动叶压力面的颗粒数量密度呈前缘点尾缘点处大、中间段小的分布规律，并且盐析颗粒在叶片上的数量密度分布最大值并不出现在组分数及粒径最大处，而是出现在平均粒径为110~150μm的盐析颗粒沉积位置处；当汽轮机30%负荷运行时，粒径40μm盐析颗粒的数量密度是其在汽轮机额定负荷运行时的1.5倍，而粒径140μm盐析颗粒的数量密度仅为汽轮机额定负荷运行时的80%。

关键词: 汽轮机动叶, 盐析颗粒, 群体平衡模型, 两相流

Abstract: In order to get a better understanding of microscopic behavior of salting-out particles in a steam turbine, a high-pressure grade rotor blade was employed in a supercritical steam turbine as a research object and the distribution of salting-out particles in the flow field from a steam turbine rotor blade was simulated using CFD-PBM method. The diameter distribution of salting-out particles in a rotor blade and the number density distribution of salting-out particles in the tailed-edge area of rotor blade with different load situations were obtained. The simulation results showed that the salting-out particle diameter near the suction side was smaller than that near the pressure side in a steam turbine rotor blade, and the salting-out particle diameter at the blade bottom was smaller than that at the blade tip. The particle number density distribution law at the pressure side of rotor blade was presented that the particle number density was larger both at the leading edge and at the tailed-edge of rotor blade while the particle number density was smaller in the middle parts of rotor blade, and the maximum value of salting-out particle number density distribution did not appear in the position having the maximum component number and particle diameter in the rotor blade, but it appeared in the position where salting-out particles with the average diameter 110-150μm deposit. When steam turbine was under 30% load operation, the number density of salting-out particles with 40μm diameter was 1.5 times than the situation when steam turbine was under rated load operation, while the number density of salting-out particles with 140μm diameter was only 80% of the situation when steam turbine was under rated load operation.

Key words: steam turbine rotor blade, salting-out particles, population balance model, two-phase flow

中图分类号:

TK26

胡鹏飞, 李勇, 曹丽华, 吴雪菲. 基于群体平衡的汽轮机动叶表面盐析颗粒分布特性[J]. 化工进展, 2018, 37(02): 437-443.

HU Pengfei, LI Yong, CAO Lihua, WU Xuefei. Distribution characteristics of salting-out particles on the surface of steam rotor blade based on population balance model(PBM)[J]. Chemical Industry and Engineering Progress, 2018, 37(02): 437-443.

参考文献

[1] 董晓峰,顾煜炯,杨昆,等.汽轮机通流部分故障诊断方法研究[J].中国电机工程学报, 2010, 30(35):71-77. DONG X F, GU Y J, YANG K, et al. Study on fault diagnosis of steam turbine flow path components[J]. Proceedings of the CSEE, 2010, 30(35):71-77.
[2] 董晓峰.基于RCM分析的智能化汽轮机组故障诊断系统研究[D].北京:华北电力大学, 2012:72-74. DONG X F. Study on intelligent fault diagnosis system for turbogenerator based on RCM analysis[D]. Beijing:North China Electric Power University, 2012:72-74.
[3] 史进渊.汽轮机通流部分故障诊断模型的研究[J].中国电机工程学报, 1997, 17(1):29-32. SHI J Y. Study of fault diagnosis models for steam turbine blading components[J]. Proceeding of the CSEE, 1997, 17(1):29-32.
[4] 王应高,李永立,星成霞,等. 亚临界600MW汽轮机积盐分析及试验研究[J]. 热力发电, 2011, 40(11):46-50. WANG Y G, LI Y L, XING C X, et al. Analysis of and test study on salt deposition in steam turbine of subcritical 600MW units[J]. Thermal Power Generation, 2011, 40(11):46-50.
[5] STRAUB F G. The cause and prevention of steam turbine blade deposits[D]. Illinois:University of Illinois Experimental Station Bulletin, 1936:34-45.
[6] 李勇,胡鹏飞,曹丽华. 汽轮机喷嘴内盐析颗粒分布特性[J]. 化工进展, 2016, 35(12):3771-3776. LI Y, HU P F, CAO L H. Research on the distribution characteristics of the salting-out particles in the steam turbine nozzle[J]. Chemical Industry and Engineering Progress, 2016, 35(12):3771-3776.
[7] 忻建华,叶春,陈汉平,等. 300MW汽轮机高压缸通流部分故障的热参数模糊诊断[J].动力工程, 1997, 17(3):5-8. XIN J H, YE C, CHEN H P, et al. A study of thermal parameters fuzzy diagnosis for 300MW turbine steam path components failures[J]. Power Engineering, 1997, 17(3):5-8.
[8] 吴茜,史进渊.大功率汽轮机通流部分故障诊断特征规律的研究[J]. 动力工程, 2001, 21(1):1010-1013. WU Q, SHI J Y. Research of characteristic rule for fault diagnosis about flow passage of a big power steam turbine[J]. Power Engineering, 2001, 21(1):1010-1013.
[9] 冯伟忠.超超临界机组蒸汽氧化及固体颗粒侵蚀的综合防治[J].中国电力, 2007, 40(1):69-73. FENG W Z. Comprehensive prevention of steam oxidation and solid particle erosion for the ultra-supercritical unit[J]. Electric Power, 2007, 40(1):69-73.
[10] 高波,杨敏官.旋流泵内颗粒分布及对盐析特性的影响[J].工程热物理学报, 2009, 30(12):2031-2033. GAO B, YANG M G. Particle concentration distribution and its effect on salt-out features in a vortex pump[J]. Journal of Mechanical Engineering, 2009, 30(12):2031-2033.
[11] 杨敏官,高波,刘栋,等.旋流泵内部盐析两相流速度场的PDPA实验[J].工程热物理学报, 2008, 29(2):237-240. YANG M G, GAO B, LIU D, et al. Experimental investigation of salt-out two-phase flow in a vortex pump by PDPA measurements[J]. Journal of Engineering Thermophysics, 2008, 29(2):237-240.
[12] 杨敏官,高波,李辉,等.旋流泵内盐析两相流场的计算及试验研究[J].机械工程学报, 2008, 44(12):42-48. YANG M G, GAO B, LI H, et al. Simulation and experimental research on salt-out two-phase flow field in a vortex pump[J]. Chinese Joural of Mechanical Engineering, 2008, 44(12):42-48.
[13] 杨敏官,吴承福,高波.离心泵内部盐析晶体颗粒分布特性[J].江苏大学学报, 2010, 31(6):678-682. YANG M G, WU C F, GAO B, et al. Distribution feature of salt-out crystal particles in centrifugal pump[J]. Journal of Jiangsu University, 2010, 31(6):678-682.
[14] 刘海红,李玉星,王武昌,等.天然气水合物颗粒微观受力及聚集特性研究进展[J].化工进展, 2013, 32(8):1796-1800. LIU H H, LI Y X, WANG W C, et al. Microscopic force and agglomeration of natural gas hydrate particles[J]. Chemical Industry and Engineering Progress, 2013, 32(8):1796-1800.
[15] SU J W, GU Z L, FENG S Y, et al. Solution of population balance equation using quadrature method of moments with an adjustable factor[J]. Chem. Eng. Sci., 2007, 62(21):5897-5911.
[16] 苏军伟,顾兆林, XU X Y.离散相系统群体平衡模型的求解算法[J].中国科学(化学), 2010, 40(2):144-160. SU J W, GU Z L, XU X Y. Advances of solution methods of population balance equation for disperse phase system[J]. Science China Press, 2010, 40(2):144-160.
[17] GERSTLAUER A, GAHN C, ZHOU H, et al. Application of population balances in the chemical industry-current status and future needs[J]. Chemical Engineering Science, 2006, 61(1):205-217.
[18] SANJEEV K, RAMKRISHNA D. On the solution of population balance equations by discretization——Ⅲ. Nucleation, growth and aggregation of particles[J]. Chemical Engineering Science, 1997, 52(24):4659-4679.
[19] MARCHISIO D, VIGIL R D, FOX R O. Implementation of the quadrature method of moments in CFD codes for aggregation-breakage problems[J]. Chemical Engineering Science, 2003, 58(15):3337-3351.
[20] 苏军伟,顾兆林,李云.各向同性颗粒系统数量平衡方程直接矩积分求解法的研究[J]. 化学反应工程与艺, 2006, 22(4):310-316. SU J W,GU Z L,LI Y.Study on direct quadrature method of moment for population balance equation in isotropic particle system[J]. Chemical Reaction Engineering and Technology, 2006, 22(4):310-316.
[21] 刘栋,汤承,严建华,等.基于PBM模型的离心泵内部盐析流场数值计算[J].中国农村水利水电, 2015(5):160-163. LIU D, TANG C, YAN J H, et al. Numerical simulation of salt-out flow in centrifugal pump based on population balance model[J]. China Rural Water and Hydropower, 2015(5):160-163.
[22] OKA Y I, OHNOGI H, HOSOKAWA T, et al. The impart angle dependence of erosion damage caused by solid particle impact[J]. Wear, 1997, 203/204:573-579.

基于群体平衡的汽轮机动叶表面盐析颗粒分布特性

Distribution characteristics of salting-out particles on the surface of steam rotor blade based on population balance model(PBM)

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