Low-NO<sub>x</sub> combustion retrofitting and optimal adjustment tests for a 130t/h CFB boiler

CHEN Jianjun; ZHOU Junhu; ZHU Zhanheng; ZHAO Chenjie

English Version Reader LoginJournal Login

您当前的位置：

首页 >

文章列表页 >

Low-NO_x combustion retrofitting and optimal adjustment tests for a 130t/h CFB boiler

更新时间：2025-09-28

- Low-NO_x combustion retrofitting and optimal adjustment tests for a 130t/h CFB boiler
- Thermal Power Generation Vol. 46, Issue 2, Pages: 81-87(2017)
- 作者机构：
  
  1. 浙江大学能源清洁利用国家重点实验室
  2. 浙江百能科技有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM621.2
- Published：2017
- 稿件说明：
移动端阅览
CHEN Jianjun, ZHOU Junhu, ZHU Zhanheng, et al. Low-NO_x combustion retrofitting and optimal adjustment tests for a 130t/h CFB boiler[J]. Thermal power generation, 2017, 46(2): 81-87.
DOI：

CHEN Jianjun, ZHOU Junhu, ZHU Zhanheng, et al. Low-NO_x combustion retrofitting and optimal adjustment tests for a 130t/h CFB boiler[J]. Thermal power generation, 2017, 46(2): 81-87. DOI：

摘要

针对杭联热电有限公司5号循环流化床(CFB)锅炉NO_x排放未达到超低排放要求、主蒸汽温度偏低、床温和排烟温度偏高等问题

采取调节二次风系统、增加锅炉受热面、增加烟气再循环系统、改进选择性非催化还原(SNCR)脱硝系统等改造措施

在额定负荷下

使NO_x最终排放质量浓度从100mg/m~3降低到50mg/m~3以内;主蒸汽温度升高了20℃

达到设计温度;床温和炉膛出口温度下降了50℃;氨逃逸量略有增加

但可以控制在8mg/m~3以内;锅炉效率基本不变。同时

针对改造后空气预热器出口CO质量浓度偏高的问题

通过燃烧优化试验得出

在不同负荷下应该合理选择再循环烟气量

且上层二次风门开度均设置为100%

下层二次风门开度设置为中间大

两边小

有利于锅炉合理运行。

Abstract

Directing against the problems occurred on No.5CFB boiler of Hangzhou United Thermoelectric Co.

Ltd.

such as high NO_xemissions which does not meet the requirements of ultra-low emission

low main steam temperature

high bed temperature and furnace outlet temperature

a low-NO_xcombustion retrofitting which includes adjusting the secondary air system

increasing the heating surface

adding the flue gas recirculation system and improving the SNCR system

has been carried out.It achieves the desired results successfully.At rated load

the final concentration of NO_xemissions decreased from 100mg/m~3 to less than 50mg/m~3

the main steam temperature increased by 20℃and reached the design temperature

the bed temperature and furnace outlet temperature dropped by 50 ℃

the amount of ammonia slip which can be controlled within 8mg/m~3 had a slight increase

the boiler efficiency was almost invariant.Moreover

further optimization test was conducted to solve the problem of high CO concentration after the air pre-heater.The results show that

in order to optimize the boiler operation

different amounts of flue gas recirculation should be chosen at different loads

simultaneously the upper secondary air damper opening degree should be 100%

the lower secondary air damper opening degree should be distributed like that the middle is large and the both sides are small.

关键词

Keywords

references

Views

376

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

The optimal static regulation characteristics of circulating fluidized bed boiler based on combustion optimization

Feasibility analysis for ultra-high parameter CFB boiler with secondary reheat

Vibration safety assessment for central full partition wall in a 700 MW high-efficiency ultra-supercritical CFB boiler

Online optimization for collaborative treatment of CO and multi-pollutant emission reduction based on particle swarm optimization

DESIGN OF CONTROL SYSTEM FOR HOMEMADE 410 t/h CFB BOILERS

Related Author

LIU Zhongyuan

MA Suxia

LI Guosheng

LIU Jianhua

XING Xiufeng

GAO Qin

KONG Hao

YANG Hairui

Related Institution

School of Electrical and Power Engineering, Taiyuan University of Technology

State Grid Shanxi Electric Power Company Electric Power Science Research Institute

Shanghai Boiler Factory Co., Ltd

State Key Laboratory of Power System and Generation Equipment Control and Simulation, Tsinghua University

Sichuan Key Laboratory of Clean Combustion and Smoke Purification

AI问答

⁰

Low-NOx combustion retrofitting and optimal adjustment tests for a 130t/h CFB boiler

DOI：

摘要

Abstract

关键词

Keywords

references

Low-NO_x combustion retrofitting and optimal adjustment tests for a 130t/h CFB boiler