350 MW超灵活锅炉深度调峰下水冷壁流动不稳定性及动态特性分析

卫子钰; 朱天如; 于婷婷; 殷亚宁; 王婷; 杨冬

doi:10.7652/xjtuxb202602009

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350 MW超灵活锅炉深度调峰下水冷壁流动不稳定性及动态特性分析

专题超临界流体前沿应用 | 更新时间：2026-02-09

- 350 MW超灵活锅炉深度调峰下水冷壁流动不稳定性及动态特性分析
- Analysis of Flow Instability and Dynamic Characteristics in Water Wall of 350 MW Ultra-Flexible Boiler During Deep Peak-Shaving Operation
- 西安交通大学学报 2026年60卷第2期页码：92-102
- 作者机构：
  
  西安交通大学动力工程多相流国家重点实验室，710049，西安
  哈尔滨锅炉厂有限责任公司低碳热力发电技术与装备全国重点实验室，150046，哈尔滨
- 作者简介：
  
  作者简介：卫子钰（2001—），女，硕士生；
  杨冬（通信作者），男，教授，博士生导师。
- 基金信息：
  
  国家重点研发计划资助项目。(2022YFB4100303)
- DOI：10.7652/xjtuxb202602009
  中图分类号： TK223.3
- 收稿：2025-06-17，
  
  纸质出版：2026-02-10
- 稿件说明：
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卫子钰, 朱天如, 于婷婷, 等. 350 MW超灵活锅炉深度调峰下水冷壁流动不稳定性及动态特性分析[J]. 西安交通大学学报, 2026,60(2):92-102.

WEI Ziyu, ZHU Tianru, YU Tingting, et al. Analysis of Flow Instability and Dynamic Characteristics in Water Wall of 350 MW Ultra-Flexible Boiler During Deep Peak-Shaving Operation[J]. Journal of Xi'an Jiaotong University, 2026, 60(2): 92-102.
卫子钰, 朱天如, 于婷婷, 等. 350 MW超灵活锅炉深度调峰下水冷壁流动不稳定性及动态特性分析[J]. 西安交通大学学报, 2026,60(2):92-102. DOI： 10.7652/xjtuxb202602009.

WEI Ziyu, ZHU Tianru, YU Tingting, et al. Analysis of Flow Instability and Dynamic Characteristics in Water Wall of 350 MW Ultra-Flexible Boiler During Deep Peak-Shaving Operation[J]. Journal of Xi'an Jiaotong University, 2026, 60(2): 92-102. DOI： 10.7652/xjtuxb202602009.

摘要

针对工质参数快速变化在超灵活锅炉深度调峰过程中引起的典型流体动力不稳定现象，提出了一种深入探究超灵活锅炉的密度波不稳定性机理及水冷壁动态响应特性的预测模型。基于频域法，将整个蒸发管段划分为过冷区、两相区和过热区3部分；对守恒方程进行线性化和微小扰动处理，利用拉普拉斯变换求解获得管道段的传递函数；基于C语言和MATLAB软件，开发一维线性三区段临界热流密度预测程序，并采用奈奎斯特（Nyquist）稳定性判据评估系统的稳定性。以350 MW超灵活塔式超临界煤粉锅炉为研究对象，结果表明：在75%和30%额定负荷下，临界热流密度分别为194.90、26.38 kW/m

，实际工况点距离热流密度边界有足够的安全裕度；当锅炉在两种负荷之间运行时，提高运行压力和热流密度可增强流动稳定性，增加管段长度和降低管道倾角会降低流动稳定性；入口焓越大，系统恢复稳定所需的时间越短。该研究可为锅炉深度调峰安全运行提供理论基础。

Abstract

To address the typical hydrodynamic instability phenomena caused by rapid changes in working fluid parameters during deep peak-shaving operation of ultra-flexible boilers，a predictive model is proposed to deeply investigate the density wave instability mechanism and dynamic response characteristics of water walls. Based on the frequency domain method，the entire evaporator tube section is divided into three parts：subcooled，two-phase，and superheated regions.The conservation equations are linearized and subj ected to small perturbation treatment，and the transfer function of the pipe section is obtained by solving with Laplace transform.Based on this process，a one-dimensional linear three-reg

ion critical heat flux prediction program is developed using C language and MATLAB software，and the Nyquist stability criterion is employed to evaluate system stability.Taking a 350 MW ultra-flexible tower-type supercritical coal-fired boiler as the research object，the results show that at 75% and 30% rated loads，the critical heat flux values are 194.90 kW/m

and 26.38 kW/m

，respectively，with actual operating points maintaining sufficient safety margins from the heat flux boundary. When the boiler operates between these two loads，increasing operating pressure and heat flux enhances flow stability，while increasing tube length and reducing pipe inclination angle reduce flow stability. Higher inlet enthalpy shortens the time required for the system to return to stability.This study provides a theoretical basis for the safe operation of boilers during deep peak-shaving.

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references

HASSAN Q, ALGBURI S, SAMEEN A Z, et al.A comprehensive review of international renewable energy growth[J/OL].Energy and Built Environment. (2024-01-09)[2025-03-15].https://doi.org/10.1016/j.enbenv.2023.12.002.

QU Mofeng, YANG Dong, LIANG Ziyu, et al.Experimental and numerical investigation on heat transfer of ultra-supercritical water in vertical upward tube under uniform and non-uniform heating[J].International Journal of Heat and Mass Transfer, 2018, 127(Part C):769-783.

WIDJAJANTO T, DARMADI D B, IRAWAN Y S, et al.Failures analysis of tube coating in circulating fluidized bed (CFB)boiler[J].Heliyon, 2024, 10(4):e26134.

XI Kenan, LI Runqing, ZHAO Lixing, et al.Experimental investigations of flow dynamics in the riser of supercritical water circulating fluidized bed[J].International Journal of Multiphase Flow, 2023, 169:104600.

欧阳诗洁,李娟,董乐,等.超超临界锅炉低负荷运行时的流动不稳定性计算分析[J].西安交通大学学报, 2019, 53(7):84-91.

OUYANG Shijie, LI Juan, DONG Le, et al.Calculation and analysis on the flow instability of an ultra supercritical boiler under low load[J].Journal of Xi'an Jiaotong University, 2019, 53(7):84-91.

杨冬,聂超,周科,等.超临界机组深度调峰工质流动不稳定试验与理论计算[J].洁净煤技术, 2023, 29(6):40-48.

YANG Dong, NIE Chao, ZHOU Ke, et al.Experiment and theoretical calculation of flow instability in deep peak-shaving of supercritical units[J].Clean Coal Technology, 2023, 29(6):40-48.

周旭,周妍君,李维成,等.660 MW超超临界CFB锅炉失电壁温计算及运行措施[J].洁净煤技术, 2023 , 29(11):91-98.

ZHOU Xu, ZHOU Yanjun, LI Weicheng, et al.Calculation of heating surface wall temperature and operation measures for 660 MW ultra supercritical CFB boiler under electricity failure[J].Clean Coal Technology, 2023, 29(11):91-98.

杜晓成,王奥宇,项昱轩,等.超临界CFB锅炉灵活运行方式下的流动传热及动态特性试验研究[J].热力发电, 2023, 52(9):76-86.

DU Xiaocheng, WANG Aoyu, XIANG Yuxuan, et al. Experimental investigation on flow heat transfer and dynamic characteristics of supercritical CFB boiler under flexible operation[J].Thermal Power Generation, 2023, 52(9):76-86.

HU Wei, XUE Song, GAO Hongchen, et al.Leakage failure analysis on water wall pipes of an ultra-supercritical boiler[J]. Engineering Failure Analysis, 2023, 154:107670.

CARRASCO D S, GOODWIN G C, PEIRCE R D. Novel modelling for a steam boiler under fast load dynamics with implications to control[J].Automatica, 2023, 156:111184.

侯素霞,赵福宇,刘成.频域法分析两相流动不稳定性[C]//中国核学会2007年学术年会论文汇编.北京:中国核学会, 2007:29.

李军,李晓明,刘长亮.开式自然循环流动不稳定性的频域法分析[J].原子能科学技术, 2017, 51 (10):1800-1805.

LI Jun, LI Xiaoming, LIU Changliang.Instability analysis of open natural circulation system using frequency domain method[J].Atomic Energy Science and Technology, 2017, 51(10):1800-1805.

ZHANG Yifan, LI Huixiong, LI Liangxing, et al. Study on two-phase flow instabilities in internallyribbed tubes by using frequency domain method[J]. Applied Thermal Engineering, 2014, 65(1/2):1-13.

田晓艳,田文喜,朱大欢,等.基于频域法超临界水冷堆CSR1000流动不稳定性研究[J].原子能科学技术, 2013, 47(3):402-408.

TIAN Xiaoyan, TIAN Wenxi, ZHU Dahuan, et al. Flow instability analysis of supercritical water-cooled reactor CSR1000 based on frequency domain[J]. Atomic Energy Science and Technology, 2013, 47(3):402-408 .

薛爱军,程旭.超临界水热力系统的稳定性的简化模型分析[J].核动力工程, 2009, 30(5):35-39.

XUE Aijun, CHENG Xu.Stability analysis of a simplified model of supercritical water-cooled system[J]. Nuclear Power Engineering, 2009, 30(5):35-39.

LIANG Qian, LI Xiaowei, SU Yang, et al.Frequency domain analysis of two-phase flow instabilities in a helical tube once through steam generator for HTGR[J]. Applied Thermal Engineering, 2020, 168:114839.

李维腾,郭泽瑞,韩磊,等.超临界循环流化床锅炉深度调峰时水冷壁流动不稳定特性计算分析[J].西安交通大学学报, 2025, 59(1):68-77.

LI Weiteng, GUO Zerui, HAN Lei, et al.Calculation and analysis of flow instability characteristics in water wall of supercritical circulating fluidized bed boiler during deep peak shaving[J].Journal of Xi'an Jiaotong University, 2025, 59(1):68-77.

王芊.垂直上升管内汽液两相流不稳定性的实验研究与数值计算[D].西安:西安交通大学, 1988.

张鑫,刘朝晖,毕勤成,等.倾斜内螺纹管中超临界水的传热和流动阻力特性研究[J].西安交通大学学报, 2020, 54(12):106-115.

ZHANG Xin, LIU Zhaohui, BI Qincheng, et al.Heat transfer and resistance characteristics of water in an inclined internally ribbed tube under supercritical pressure conditions[J].Journal of Xi'an Jiaotong University, 2020, 54(12):106-115.

ZHAO Jiyun.Stability analysis of supercritical water cooled reactors[D].Cambridge:Massachusetts Institute of Technology, 2005.

辛亚飞,聂超,毕凌峰,等.倾斜管内汽水两相流动不稳定特性的数值分析[J].电力科技与环保, 2022 , 38(3):195-201.

XIN Yafei, NIE Chao, BI Lingfeng, et al.Numerical analysis of unstable characteristics of steam-water two-phase flow in inclined pipe[J].Electric Power Technology and Environmental Protection, 2022, 38 (3):195-201.

王志勇,李维腾,堵根旺,等.自然循环锅炉深度调峰时水冷壁汽水两相流动不稳定特性计算及安全分析[J].热力发电, 2024, 53(11):119-129.

WANG Zhiyong, LI Weiteng, DU Genwang, et al. Calculation and safety analysis of unstable characteristics of vapor-liquid two-phase flow in water wall during deep peak shaving of natural circulation boiler[J]. Thermal Power Generation, 2024, 53(11):119-129.

毕凌峰,杜晓成,张西容,等.基于频域法的超超临界锅炉水冷壁动态特性模型验证及计算分析[J].动力工程学报, 2023, 43(12):1557-1566.

BI Lingfeng, DU Xiaocheng, ZHANG Xirong, et al. Model verification and calculation analysis of dynamic characteristics of water wall of ultra-supercritical boiler based on frequency domain method[J].Journal of Chinese Society of Power Engineering, 2023, 43(12):1557-1566.

茆凯源,聂鑫,谢海燕,等.超超临界1000MW二次再热机组锅炉水动力及流动不稳定性计算分析[J].热力发电, 2017, 46(8):36-41.

MAO Kaiyuan, NIE Xin, XIE Haiyan, et al.Computational analysis on hydrodynamic characteristics and flow instability of an ultra supercritical 1000 MW double-reheat unit boiler[J].Thermal Power Generation, 2017, 46(8):36-41.

SHIN C W, NO H C.Experimental study for pressure drop and flow instability of two-phase flow in the PCHE-type steam generator for SMRs[J].Nuclear Engineering and Design, 2017, 318:109-118.

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