TEST STUDY ON AFFECTING FACTORS UPON THE OF NO<sub>x</sub> EMISSION FROM SUPERCRITICAL 1100 t/h COAL-FIRED BOILER

WANG Guozhong; MENG Yong Xi'an Thermal Power Research Institute Co Ltd

English

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TEST STUDY ON AFFECTING FACTORS UPON THE OF NO_x EMISSION FROM SUPERCRITICAL 1100 t/h COAL-FIRED BOILER

Thermal Power Generation Vol. 41, Issue 4, Pages: 65-68(2012)

更新时间：2025-09-28

- TEST STUDY ON AFFECTING FACTORS UPON THE OF NO_x EMISSION FROM SUPERCRITICAL 1100 t/h COAL-FIRED BOILER
- 作者机构：
  
  西安热工研究院有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK227
- Published：2012
- 稿件说明：
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WANG Guozhong, MENG Yong Xi'an Thermal Power Research Institute Co Ltd. TEST STUDY ON AFFECTING FACTORS UPON THE OF NO_x EMISSION FROM SUPERCRITICAL 1100 t/h COAL-FIRED BOILER[J]. Thermal Power Generation, 2012, 41(4): 65-68.
DOI：

WANG Guozhong, MENG Yong Xi'an Thermal Power Research Institute Co Ltd. TEST STUDY ON AFFECTING FACTORS UPON THE OF NO_x EMISSION FROM SUPERCRITICAL 1100 t/h COAL-FIRED BOILER[J]. Thermal Power Generation, 2012, 41(4): 65-68. DOI：

摘要

通过对某电厂超临界机组1 100t/h锅炉NOx排放浓度的测定发现

在相同机组负荷下

空气预热器(空预器)出口处烟气含氧量(简称氧量)增加

NOx排放浓度增加;燃尽风门开度减小时

热力型NOx的生成量变化不大

燃料型NOx的生成量逐渐增加

飞灰可燃物含量逐渐减小

锅炉效率逐渐提高;分离器转速增加

飞灰可燃物含量逐渐降低

锅炉效率逐渐提高

NOx排放浓度基本保持不变。另外

煤质特性对NOx排放浓度有着较大的影响

其中固定碳与挥发分比和含氮量起决定性作用。当机组负荷下降时

热力型NOx排放浓度逐渐降低。

Abstract

Through measurement of NOx emission concentration from a supercritical 1100 t/h boiler in one power plant

it has discovered that the facts are listed as in the following:under same load of unit

if the oxygen content in flue gas from outlet of the air preheater is increasing

the concentration of NOx emission is also increasing

if the open-degree of over-fired air gate is decreased

the variation of formation rate for the thermal type NOx isn't large

the formation rate of fuel type NOx is gradually increased

the cotent of unburnt combustible in fly ash is gradually reduced

the boiler efficiency is gradually enhanced

the concentration of NOx emission is basically not changed.The property of coal quality has greater influence upon the concentration of NOx emission

the ratio between fixed carbon and volatile matters as well as nitrogen content in the fuel play a decisive role.During the time of decreasing load of unit

the concentration of thermal type NOx emission is gradually reduced.

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TEST STUDY ON AFFECTING FACTORS UPON THE OF NOx EMISSION FROM SUPERCRITICAL 1100 t/h COAL-FIRED BOILER

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摘要

Abstract

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TEST STUDY ON AFFECTING FACTORS UPON THE OF NO_x EMISSION FROM SUPERCRITICAL 1100 t/h COAL-FIRED BOILER