超临界机组双背压凝汽器抽气系统改造

华电技术 ›› 2010, Vol. 32 ›› Issue (6): 9-11.

超临界机组双背压凝汽器抽气系统改造

朱宝森，刘彬，刘尊平，孙光玉

华电潍坊发电有限公司，山东潍坊261204

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-06-25

Reformation of air extraction system of twopressure condenser in a supercritical unit

ZHU Baosen, LIU Bin, LIU Zunping, SUN Guangyu

Huadian Weifang Power Generation Corporation Limited, Weifang 261204, China

Received:1900-01-01 Revised:1900-01-01 Published:2010-06-25

摘要/Abstract

摘要： 由于高、低背压凝汽器抽空气管路采用串联布置方式，导致高背压凝汽器抽空气排挤低背压抽气，致使低压凝汽器抽空气不能达到设计要求，造成真空值和高、低背压凝汽器背压差值偏低，降低了系统经济性。采取了相应措施，对双背压凝汽器抽气系统进行了改造，经济效益明显。

关键词: 双背压凝汽器, 抽气系统, 端差, 真空, 改造方案

Abstract: The air extraction tubes of highpressure condenser and lowpressure condenser in a unit were arranged in series mode, and this caused the extracted air of highpressure condenser to push aside the extracted air of lowpressure condenser. The air extraction of lowpressure condenser was not reached to the designed requirement; the vacuity of the lowpressure condenser was lower, and the difference between highpressure condenser and lowpressure condenser was also lower. Then the system economical efficiency was decreased. The air extraction system of twopressure condenser had been reformed by adopting some relevant measures, and obvious economical benefit was obtained. 

Key words: two-pressure condenser, air extraction system, pressure difference of terminals, vacuum, reformation scheme

朱宝森;刘彬;刘尊平;孙光玉. 超临界机组双背压凝汽器抽气系统改造[J]. 华电技术, 2010, 32(6): 9-11.

ZHU Baosen;LIU Bin;LIU Zunping;SUN Guangyu. Reformation of air extraction system of twopressure condenser in a supercritical unit[J]. Huadian Technology, 2010, 32(6): 9-11.

[1]	周楠, 梁秀进, 李壮. 燃煤机组白色烟羽治理方案经济性分析[J]. 华电技术, 2020, 42(9): 63-68.
[2]	孙书刚，朱昱，钱兵，李小武，倪红军. 基于遗传算法的涂层转接工艺优化[J]. 华电技术, 2020, 42(2): 72-75.
[3]	金纬. 660MW汽轮发电机组真空泵节能改造[J]. 华电技术, 2019, 41(7): 40-42.
[4]	王敏1，王杰2. 600MW超临界机组凝汽器真空度低的原因分析及治理[J]. 华电技术, 2019, 41(3): 59-61.
[5]	袁捷，钱卫武，施晓炜，韩竞一. 凝汽器真空系统泄漏的原因分析及处理[J]. 华电技术, 2018, 40(8): 59-60.
[6]	谌丽1，吴春潮2. 1050MW机组石膏含水率高的原因分析及处理[J]. 华电技术, 2018, 40(5): 56-57.
[7]	余莉1,2. 降低区域式天然气分布式系统的余热锅炉排烟温度的方案[J]. 华电技术, 2018, 40(4): 42-44.
[8]	宗绪东. 火力发电厂水环真空泵存在的问题及优化改造[J]. 华电技术, 2018, 40(2): 29-31.
[9]	董霖1，曾雅洁2，沈阳1，刘明星1，张志勇1，马勇3. 680MW超超临界机组真空突降原因诊断[J]. 华电技术, 2018, 40(11): 31-33.
[10]	刘龙翔. 600MW超临界火力发电机组凝汽器真空测量改造简析[J]. 华电技术, 2017, 39(8): 39-41.
[11]	马晓娟，潘亚培，杨昭. 基于物联网的高压真空断路器智能数字化监控系统解析[J]. 华电技术, 2017, 39(2): 12-15.
[12]	杨旭涛. QFR480发电机密封油压异常波动原因分析及对策[J]. 华电技术, 2016, 38(5): 30-32.
[13]	万志勇. 真空泵切换过程中真空度突降的原因分析及应对措施[J]. 华电技术, 2016, 38(5): 52-53.
[14]	韩丽娜，李绍刚，王刚. 凝汽器抽真空系统的节能改造[J]. 华电技术, 2016, 38(5): 70-73.
[15]	舒茂龙. 大型空冷机组ETS优化与改造简析[J]. 华电技术, 2016, 38(4): 27-29.