MODELING OF SPRAY DESUPERHEATER IN AN ULTRA SUPERCRITICAL ONCE-THROUGH BOILER

FANG Yanjun; WANG Zhenyu Department of Automation

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MODELING OF SPRAY DESUPERHEATER IN AN ULTRA SUPERCRITICAL ONCE-THROUGH BOILER

Thermal Power Generation Vol. 41, Issue 12, Pages: 39-42(2012)

更新时间：2025-09-28

- MODELING OF SPRAY DESUPERHEATER IN AN ULTRA SUPERCRITICAL ONCE-THROUGH BOILER
- 作者机构：
  
  武汉大学动力与机械学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK229.63
- Published：2012
- 稿件说明：
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FANG Yanjun, WANG Zhenyu Department of Automation. MODELING OF SPRAY DESUPERHEATER IN AN ULTRA SUPERCRITICAL ONCE-THROUGH BOILER[J]. Thermal Power Generation, 2012, 41(12): 39-42.
DOI：

FANG Yanjun, WANG Zhenyu Department of Automation. MODELING OF SPRAY DESUPERHEATER IN AN ULTRA SUPERCRITICAL ONCE-THROUGH BOILER[J]. Thermal Power Generation, 2012, 41(12): 39-42. DOI：

摘要

以东方锅炉(集团)股份有限公司制造的超超临界1 000 MW机组直流锅炉为研究对象

根据质量、能量守恒定律分别建立了单级喷水减温器的微观、宏观和当减温水温度和流量存在阶跃扰动时的数学模型。经过线性化和偏差化处理

得到宏观数学模型下的控制模型

即直流锅炉运行状态在某一稳定工况附近变动时的减温水流量传递函数。

Abstract

The micro and macro mathematic model of single-stage spray desuperheater

and the model for desuperheating water temperature and flow having step disturbance were established

according to the mass and energy conservation laws

and taking the once-through boiler for ultra supercritical 1 000 MW unit manufactured by Dongfang Boiler Group Co.

Ltd.as the object.By linearization and deviation treatment

a control model under the macro mathematic model was obtained

namely the transfer function of desuperheating water flow

when the once-through boiler was running in the vicinity of a stable condition.

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