改进型低氧处理精确加氧技术在超超临界机组的应用

doi:10.11930/j.issn.1004-9649.2016.11.149.04

中国电力 ›› 2016, Vol. 49 ›› Issue (11): 149-152.DOI: 10.11930/j.issn.1004-9649.2016.11.149.04

改进型低氧处理精确加氧技术在超超临界机组的应用

李俊菀¹, 曹杰玉¹, 刘玮¹, 何磊², 王德军², 孟林辉², 汪思华¹

1. 西安热工研究院有限公司,陕西西安 710054;
2. 国华绥中发电有限责任公司,辽宁葫芦岛 125205

收稿日期:2016-08-02 出版日期:2016-11-10 发布日期:2016-12-09
作者简介:李俊菀（1984—）,男,福建泉州人,硕士,工程师,从事电厂化学防腐技术、化学监测技术研究。E-mail: lijunwan@tpri.com.cn

Application of Improved Oxygenated Treatment on Ultra-Supercritical Unit with Precise Low Oxygen Content Dosing Technology

LI Junwan¹, CAO Jieyu¹, LIU Wei¹, HE Lei², WANG Dejun², MENG Linhui², WANG Sihua¹

1. Xi’an Thermal Power Research Institute Co., Ltd., Xi’an 710054, China;;
2. Guohua Suizhong Power Generation Co., Ltd., Huludao 125205, China

Received:2016-08-02 Online:2016-11-10 Published:2016-12-09

摘要/Abstract

摘要： 为防止给水系统、高压加热器疏水系统流动加速腐蚀,超（超）临界机组采用加氧处理技术很有必要。为减少对过热器、再热器氧化皮问题的担心,研发出适当降低给水pH值、精确控制加氧量的改进型低氧处理技术。相比以往的低氧处理方法,该技术能够提高凝结水精处理系统的经济性,防止高压加热器汽侧腐蚀和降低疏水含铁量,同样不额外增加蒸汽中的氧量,消除传统加氧工况对氧化皮剥落的影响,并兼有加氧处理的其他优点。所研发的改进型低氧处理技术在1 000 MW超超临界机组上应用效果良好,起到了对汽水系统全程保护的作用。

关键词: 改进型低氧处理, 流动加速腐蚀, 给水, 高压加热器, 疏水, 凝结水精处理, 精确加氧

Abstract: It is of vital importance to implement oxygenated treatment for(ultra) supercritical units to effectively inhibit flow accelerated corrosion in feed-water and high pressure heater drain systems. The improved oxygenated treatment with low oxygen content, appropriate feed-water pH value reduction and precise oxygen dosing technology is developed to solve the oxide scale problems in both the superheaters and the reheaters. Compared with the traditional oxygenated treatment using low oxygen content, this technology can further improve the economic efficiency of condensate polishing system, effectively inhibit flow accelerated corrosion in high pressure heater drain system and reduce its iron contents without any extra oxygen content increase in the steam, which not only eliminates the adverse effect of oxygen dosing on oxide scale exfoliation but also has the advantages of other oxygenated technologies. Its application on 1 000-MW ultra-supercritical unit shows good effects such that the whole water-steam circuit system is fully protected effectively.

Key words: improved oxygenated treatment with low oxygen content, flow accelerated corrosion, feed-water, high pressure heater, drain, condensate polishing system, precise oxygen dosing

中图分类号:

TK224.9

李俊菀, 曹杰玉, 刘玮, 何磊, 王德军, 孟林辉, 汪思华. 改进型低氧处理精确加氧技术在超超临界机组的应用[J]. 中国电力, 2016, 49(11): 149-152.

LI Junwan, CAO Jieyu, LIU Wei, HE Lei, WANG Dejun, MENG Linhui, WANG Sihua. Application of Improved Oxygenated Treatment on Ultra-Supercritical Unit with Precise Low Oxygen Content Dosing Technology[J]. Electric Power, 2016, 49(11): 149-152.

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参考文献

[1] 陈裕忠,黄万启,卢怀钿,等. 1 000 MW超超临界机组长周期给水加氧实践效果分析与评价[J]. 中国电力,2013,46（12）：43-47,51.
CHEN Yuzhong, HUANG Wanqi, LU Huaitian, et al . Analysis and assessment on effect of long-term oxygenated treatment for 1 000-MW ultra supercritical units[J]. Electric Power, 2013, 46(12): 43-47, 51.
[2] 黄校春,徐洪,赵益民. 超超临界机组实施给水加氧处理的可行性[J]. 中国电力,2011,44（12）：51-54.
HUANG Xiaochun, XU hong, ZHAO Yimin. The feasibility of feed water oxygenation treatment in ultra-supercritical unit [J].Electric Power, 2011, 44(12): 51-54.
[3] 李志刚,陈戎. 火电厂锅炉给水加氧处理技术研究[J]. 中国电力,2004,37（11）：47-52.
LI Zhigang, CHEN Rong. Study of oxygenated feedwater treatment technology of utility boiler[J]. Electric Power, 2004, 37(11): 47-52.
[4] LI Zhigang, HUANG Wanqi, CAO Songyan, et al . Boiler water oxygenated treatment in power plants in China[J]. Power Plant Chemistry, 2014, 16(5): 294-304.
[5] 火电厂水汽化学导则第1部分：直流锅炉给水加氧处理导则：DL/T 805.1—2002[S].
[6] 李志刚,张宇博,姚兵印. 超(超)临界锅炉机组高温氧化案例分析与启示[J]. 中国电力,2014,47（8）：88-93.
LI Zhigang, ZHANG Yubo, YAO bingyin. Case study of high temperature oxidation in supercritical/ultra-supercritical boilers [J]. Electric Power, 2014, 47(8): 88-93.
[7] 蔡晖,熊伟,唐丽英,等. 锅炉给水加氧对奥氏体管汽侧氧化皮形成及剥落的影响[J]. 华电技术,2015,37（5）：14-20,77.
CAI Hui, XIONG Wei, TANG Liying, et al . Influence of the oxygenated treatment of boiler feedwater on forming and shedding of oxide skin in steam side of austenitic pipe[J]. Huadian Technology, 2015, 37(5): 14-20, 77.
[8] 张波,金用强,王育翔. 加氧运行对超临界锅炉再热器TP347H钢管内壁氧化皮增厚速度和剥落的影响[J]. 锅炉技术,2011, 42（6）：45-49.
ZHANG Bo, JIN Yongqiang, WANG Yuxiang. Effect of adding oxygen in service on oxidation film growing speed of austenitic steel TP347H tubes from supercritical boiler heat surface[J].Boiler Technology, 2011, 42(6): 45-49.
[9] 贾建民,陈吉刚,李志刚,等. 18-8系列粗晶不锈钢锅炉管内壁氧化皮大面积剥落防治对策[J]. 中国电力,2008,41（5）：37-41.
JIA Jianmin, CHEN Jigang, LI Zhigang, et al . Counter measures against massive exfoliation of oxidation scale on the internal surface of coarse grained 18-8 type stainless steel boiler tubes[J]. Electric Power, 2008, 41(5): 37-41.
[10] 冯礼奎,钱洲亥,周臣. 直流锅炉给水低氧量处理的试验研究[J]. 中国电力,2013,46（4）：21-24.
FENG Likui, QIAN Zhouhai, ZHOU Chen. Experimental research on low-oxygen feedwater treatment for once-through boilers[J].Electric Power, 2013, 46(4): 21-24.
[11] 刘春红,施国忠. 基建超超临界1 000 MW机组精确给水加氧处理技术的研究[J]. 水处理技术,2013,39（6）：109-111,115.
LIU Chunhong, SHI Guozhong. Study on accurate control of feed-water oxygenated treatment for capital construction 1 000 MW ultra-super critical unit[J]. Technology of Water Treatment,2013, 39(6): 109-111, 115.
[12] 茅玉林,黄万启,张洪博,等. 660 MW 超超临界机组给水低氧处理实践与效果评价[J]. 腐蚀科学与防护技术,2014,26（3）：285-288.
MAO Yulin, HUANG Wanqi, ZHANG Hongbo, et al . Practice and assessment on effect of low content oxygenated treatment for 660 MW ultra supercritical units[J]. Corrosion Science and Protection Technology, 2014, 26(3): 285-288.
[13] 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 Weizhong. Comprehensive prevention of steamoxidation and solid particle erosion for the ultra-supercritical unit[J]. Electric Power, 2007, 40(1): 69-73.

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改进型低氧处理精确加氧技术在超超临界机组的应用

Application of Improved Oxygenated Treatment on Ultra-Supercritical Unit with Precise Low Oxygen Content Dosing Technology

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