Title:
PULVERIZED COAL BOILER INTEGRATED COMPREHENSIVE ADJUSTMENT METHOD BASED ON WATER-COOLED WALL HIGH-TEMPERATURE CORROSION PREVENTION AND CONTROL
Document Type and Number:
WIPO Patent Application WO/2022/188375
Kind Code:
A1
Abstract:
A pulverized coal boiler integrated comprehensive adjustment method based on water-cooled wall high-temperature corrosion prevention and control. The method comprises the following steps: during boiler shutdown, adding a reducing atmosphere sampling pipe in a water-cooled wall region of a boiler (S1); carrying out a comprehensive preliminary test on the boiler (S2); carrying out an optimization and adjustment test on a boiler pulverizing system (S3); carrying out a single-factor adjustment test on a boiler related parameter (S4); determining the degrees of influence of different parameters on the reducing atmosphere of a water-cooled wall, the thermal efficiency of the boiler and the NOx concentration at a denitration inlet (S5); carrying out an ammonia spraying optimization test on a denitration system (S6); carrying out a maximum safe denitration efficiency test, and determining the maximum bearable inlet NOx concentration value of the denitration system (S7); and finding an optimal balance point among the reducing atmosphere of the water-cooled wall, the thermal efficiency of the boiler and the NOx concentration at the denitration inlet, and determining an optimized operation mode of the boiler (S8). By means of the pulverized coal boiler integrated comprehensive adjustment method based on water-cooled wall high-temperature corrosion prevention and control, the comprehensive optimization of overall operation indexes such as the reducing atmosphere of a water-cooled wall of a boiler, the thermal efficiency of the boiler and the NOx concentration at a denitration inlet can be actually achieved.
Inventors:
XUE XIAOLEI (CN)
CHEN MIN (CN)
WANG XIAOHUA (CN)
CHEN BAOKANG (CN)
YU SHENGJIE (CN)
LIU RUIPENG (CN)
LI YUE (CN)
PENG XIAOMIN (CN)
MEI ZHENFENG (CN)
ZHAO PENG (CN)
DING YIWEN (CN)
ZHU JINYONG (CN)
CHEN MIN (CN)
WANG XIAOHUA (CN)
CHEN BAOKANG (CN)
YU SHENGJIE (CN)
LIU RUIPENG (CN)
LI YUE (CN)
PENG XIAOMIN (CN)
MEI ZHENFENG (CN)
ZHAO PENG (CN)
DING YIWEN (CN)
ZHU JINYONG (CN)
Application Number:
PCT/CN2021/115258
Publication Date:
September 15, 2022
Filing Date:
August 30, 2021
Export Citation:
Assignee:
SUZHOU TPRI ENER & ENVIRO TECH CO LTD (CN)
International Classes:
G01M99/00; F22B37/38; F23C7/00; F23D1/00; F23J15/02; F23L7/00; F23M5/08
Foreign References:
| CN112945600A | 2021-06-11 | |||
| CN105953259A | 2016-09-21 | |||
| CN101858591A | 2010-10-13 | |||
| CN105675810A | 2016-06-15 | |||
| CN106950168A | 2017-07-14 | |||
| CN107044628A | 2017-08-15 | |||
| CN109631009A | 2019-04-16 | |||
| CN201811207U | 2011-04-27 | |||
| KR20180023251A | 2018-03-07 |
Attorney, Agent or Firm:
SUZHOU CREATOR PATENT & TRADEMARK AGENCY, LTD. (CN)
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