Retrofitting of reheaters in 300MW and 600MW unit pulverized coal boilers

JIA Li; XIAO Faqi; CAI Xinchun; LIN Shubiao; QIAO Xiaolei; FAN Baoguo

English Version Reader LoginJournal Login

您当前的位置：

首页 >

文章列表页 >

Retrofitting of reheaters in 300MW and 600MW unit pulverized coal boilers

更新时间：2025-09-28

- Retrofitting of reheaters in 300MW and 600MW unit pulverized coal boilers
- Thermal Power Generation Vol. 45, Issue 1, Pages: 126-131(2016)
- 作者机构：
  
  1. 太原理工大学电气与动力工程学院
  2. 山西格盟国际能源有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM621.2
- Published：2016
- 稿件说明：
移动端阅览
JIA Li, XIAO Faqi, CAI Xinchun, et al. Retrofitting of reheaters in 300MW and 600MW unit pulverized coal boilers[J]. Thermal power generation, 2016, 45(1): 126-131.
DOI：

JIA Li, XIAO Faqi, CAI Xinchun, et al. Retrofitting of reheaters in 300MW and 600MW unit pulverized coal boilers[J]. Thermal power generation, 2016, 45(1): 126-131. DOI：

摘要

针对某电厂2台300MW和1台600MW机组锅炉运行中长期出现的燃烧器喷嘴下摆、再热器超温、减温水量大等问题

结合所燃用煤种热值低、水分高、灰分高的实际情况

提出了减少一部分再热器受热面积的改造方案。实际运行结果表明

改造后再热器减温水量减少

燃烧器喷嘴摆角在低负荷下也可摆到水平位置

在提高高压加热器解列、磨煤机停机等异常情况下锅炉带负荷能力的同时

降低了再热器受热面吹损的隐患

锅炉运行安全经济性明显提高。

Abstract

For a 600 MW and two 300 MW units pulverized coal boilers

the burners tilt down

and the temperature in reheater and the amount of desuperheater spray exceed their design value.Too much heating surface area caused heat deviation in the reheater was considered as the major reason

according to the coal characteristics(low heat calorific value

high moisture and ash content).Therefore

it is proposed to cut part of the heating area.The actual operation results show that the desuperheater spray amount decreased markedly and the burner tilt can also be placed in a horizontal position at low loads after the retrofitting.The retrofitting improved the loading capacity of boiler when high pressure heaters are separated and coal mills are stopped.The hidden troubles of heating surface corrosion were be reduced.The boilers' safety and economy is enhanced.

关键词

Keywords

references

Views

235

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

CALCULATION OF WALL-TEMPERATURE FOR SUPERHEATER AND REHEATER OF HG670/13.7-YM13 TYPE BOILER

ESTABLISHMENT OF SERVICE LIFE MANAGEMENT SYSTEM FOR HIGH-TEMPERATURE BOILER TUBES IN THERMAL POWER PLANT BASED ON B/S STRUCTURE

CAUSE ANALYSIS OF FREQUENT BURST-LEAKAGE OCCURRED ON REHEATER AND WATER-WALL OF 300 MW UTILITY BOILER

ON-LINE MONITORING OF TUBE-WALL TEMPERATURE FOR SUPERHEATER AND REHEATER IN FURNACE OF SUPER CRITICAL BOILERS

TEST STUDY ON CONTROLLING HEAT DEVIATION IN UTILITY BOILERS BY USING JET-FLOW READJUSTING METHOD

Related Author

LIU Tong

XU Gang

DU Bao-hua

LI Yao-jun

LIU Zhen-yu

LI Chung-min

WANG Zhong-jie

SUN Xi(Xi'an Thermal Power Reseach Institute Co.Ltd

Related Institution

North China Electric Power University

North China Electric Power University Beijing

Xi'an Thermal Power Research Institute Co., Ltd

Huadian Pucheng Power Plant

AI问答

⁰