崔传涛,陶小宇,刘岩
CUI Chuantao,TAO Xiaoyu,LIU Yan

• 1:中电华创电力技术研究有限公司

摘要(Abstract)：

为及时发现燃煤机组高压加热器泄漏，对某燃煤机组3号高压加热器水侧泄漏对运行参数的影响进行分析。基于高压加热器泄漏案例，通过建立回热系统分析模型，定量分析3号高压加热器水侧泄漏对正常疏水调节阀开度、给水流量偏差及给水泵汽轮机转速等参数的影响，并进行影响因素敏感性分析。采用定量分析方式明确高压加热器水侧泄漏判断依据，并对各判断依据进行优化组合，确定泄漏预警的最终触发条件，据此开发高压加热器水侧泄漏预警装置。结果表明，高压加热器水侧泄漏预警装置比人为判断提前7天时间，可以有效避免因高压加热器泄漏引发的安全事故。
In order to find the leakage of high-pressure heater of coal-fired unit in time, the auther analyzes the influence of water side leakage of No.3 high pressure heater on operating parameters. Based on the leakage case of high-pressure heater,the influence of water side leakage of No.3 high pressure heater on normal drain valve opening, feed water flow deviation,feed water pump turbine speed and other parameters are quantitatively analyzed by establishing the analysis model of heat recovery system, and the sensitivity analysis of the influencing factors is conducted. Quantitative analysis method is adopted to define the judgment basis of water side leakage of high-pressure heater, optimize the combination of each judgment basis, determine the final trigger conditions of leakage warning, and develop the water side leakage warning device of highpressure heater. The results show that the water side leakage warning device of high pressure heater is seven days earlier than that of human judgment, which can effectively avoid safety accidents caused by high pressure leakage and is of great important engineering application value.

关键词(KeyWords)： 燃煤机组;高压加热器;泄漏预警装置;运行参数;温度
coal-fired power unit;high pressure heater;leakage warning device;operation parameter;temperature

Abstract:

Keywords:

基金项目(Foundation): 国家电力投资集团有限公司科技项目“汽轮机本体揭缸检修智能判断系统研究与开发”（ZGDL-KJ-2023-C045）

作者(Author): 崔传涛,陶小宇,刘岩
CUI Chuantao,TAO Xiaoyu,LIU Yan

参考文献(References)：

• [1]袁宏伟.600 MW超临界发电机组高压加热器泄漏分析及处理措施[J].电力设备管理，2021(5):86-87,138.
• [2]魏勇.高压加热器泄漏原因分析、处理及防治[J].中国新技术新产品，2020(4):98-101.
• [3]施志敏.330 MW机组高压加热器泄漏原因分析及对策[J].中国设备工程，2019(3):103-105.
• [4]李永华，刘伟庭.动态基准温度对回热系统加热器效率影响分析[J].热能动力工程，2012,27(3):287-292.LI Yonghua, LIU Weiting. Analysis of the influence of dynamic reference temperature on the efficiency of heater in regenerative system[J]. Journal of Engineering for Thermal Energy and Power, 2012, 27(3):287-292.
• [5]崔传涛，赵玉柱，鄢传武.亚临界机组蒸汽参数提升条件下回热抽汽参数优化设计[J].热能动力工程，2017,32(9):46-49.CUI Chuantao, ZHAO Yuzhu, YAN Chuanwu. The parameter of regenerative extraction steam design optimization on the basis of parameter raising of subcritical unit[J]. Journal of Engineering for Thermal Energy and Power, 2017, 32(9):46-49.
• [6]王林，伍刚，张亚夫，等.1000 MW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 Lin, WU Gang, ZHANG Yafu, et al. Thermodynamic System Optimization Research on 1000 MW Deep Peak-regulating Unit[J]. Power Generation Technology, 2019, 40(3):265-269.
• [7]曾海波，龚自力，肖波.超超临界机组高压加热器水位补偿研究[J].浙江电力，2018,37(4):93-96.ZENG Haibo, GONG Zili, XIAO Bo. Research on Water Level Compensation of High Pressure Heater for Ultra-supercritical Unit[J]. Zhejiang Electric Power, 2018, 37(4):93-96.
• [8]周璐瑶，徐钢，白璞.1000 MW超超临界机组回热抽汽过热度多种利用形式的热力学分析[J].动力工程学报，2017,37(6):27-30.ZHOU Luyao, XU Gang, BAI Pu. Thermodynamic analysis of various utilization types of superheat in regenerative steam extracting of 1000 MW ultra supercritical unit[J]. Journal Of Chinese Society Of Power Engineering, 2017, 37(6):27-30.
• [9]徐曙，蒋北华.0号高压加热器经济性的热力学分析[J].汽轮机技术，2018,46(1):37-40.XU Shu, JIANG Beihua. Thermodynamic analysis of economy of no.0 high pressure heater[J]. Turbine Technology, 2018, 46(1):37-40.
• [10]徐江，赵志发，李军.1000 MW二次再热机组给水温度优化实施[J].华电技术，2020,42(1):39-41.XU Jiang, ZHAO Zhifa, LI Jun. Optimization implementation of feed water temperature for 1000 MW secondary reheat unit[J]. Huadian Technology, 2020, 42(1):39-41.
• [11]刘亮亮.高压加热器出口给水温度低原因分析及处理[J].内蒙古电力技术，2018,36(3):50-52.LIU Liangliang. Analysis and treatment of low outlet feed water temperature of high pressure heater[J]. Inner Mongolia Electric Power, 2018, 36(3):50-52.
• [12]王存新，吴志祥，宁志.1000 MW机组回热系统优化的技术经济性分析[J].节能，2016,35(7):41-44.WANG Cunxin, WU Zhixiang, NING Zhi. Technical and economic analysis on optimization of regenerative system for1000 MW unit[J]. Energy Conservation, 2016, 35(7):41-44.
• [13]张才稳.加热器等效热降分析模型研究[J].汽轮机技术，2011,53(6):459-461.ZHANG Caiwen. Research on equivalent entropy drop analysis model for heaters in steam cycle[J]. Turbine Technology, 2011, 53(6):459-461.
• [14]郭炜.高压加热器泄漏原因分析与涡流检测的应用[J].中国新技术新产品，2020(2):52-53.
• [15]杨荣.汽轮机高加运行经验及故障研究[J].中国设备工程，2019(21):75-76.
• [16]毛研伟.汽轮机抽汽系统的实验及数值研究[D].上海：上海交通大学，2012.
• [17]林万超.火电厂热力系统节能理论[M].西安：西安交通大学出版社，1994.
• [18]王东雷，张鹏，霍沛强.采用再热温度630℃的1000 MW新一代超超临界二次再热机组可行性研究[J].南方能源建设，2018,5(3):33-41.
• [19]林加伍，李朝兵.超超临界基建机组高加汽侧系统清洗工艺探讨[J].电力科技与环保，2017,33(4):56-57.
• [20]周大伟，谢尉扬，王飞，等.高压加热器泄漏与运行水位试验研究[J].电站系统工程，2022,38(6):19-22.ZHOU Dawei, XIE Weiyang, WANG Fei, et al. Experimental Research on Running Water Level of High Pressure Heater[J]. Power System Engineering, 2022, 38(6):19-22.
• [21]刘楠，来国庆，周德纯，等.浅谈300 MW机组高压加热器泄漏分析及治理[J].中国设备工程，2021(22):162-163.
• [22]叶盛春，张何境，魏豪.超超临界机组高压加热器泄露案例分析与节能[J].清洁世界，2022,38(5):6-8.
• [23]朱永葆.600 MW亚临界机组高压加热器失效分析及改造[J].电站辅机，2022,43(3):28-32.ZHU Yongbao. Failure Analysis of the HP Heater used in the 600 MW Sub-critical Power Plant and Replacement of the Equipment[J]. Power Station Auxiliary Equipment,2022, 43(3):28-32.
• [24]于立龙.一种典型三段式高压加热器制造过程质量控制要点研究[J].科技创新与应用，2022,12(23):149-152.
• [25]穆峰，刘立锋.高压加热器筒体泄露原因分析[J].大众标准化，2022（增刊1）:63-64,67.
• [26]刘响亮，胡新元，任宁博.1000 MW机组蛇形管式高压加热器泄漏原因分析[J].中国特种设备安全，2022,38(3):79-81,86.LIU Xiangliang, HU Xinyuan, REN Ningbo. Cause Analysis on the Leakage of 1000 MW Snake-tube Type High Pressure Heater[J]. China Special Equipment Safety, 2022, 38(3):79-81, 86.