注汽锅炉辐射传热特性的数据建模仿真  

Data Modeling and Simulation of Radiant Heat Transfer Characteristics of Steam Injection Boiler

作　　者：郭海霞[1] GUO Haixia(Construction Equipment Engineering Department,Xinjiang Construction Vocational and Technical College,Urumqi 830054,China)

机构地区：[1]新疆建设职业技术学院建筑设备工程学院,新疆乌鲁木齐830054

出　　处：《工业炉》2023年第2期19-23,共5页Industrial Furnace

基　　金：新疆维吾尔自治区自然科学基金(2021D02A24)。

摘　　要：利用CFX软件建立注汽锅炉辐射段模型,并设计辐射段出入口边界条件分析注汽锅炉辐射传热特性。结果表明:炉管结构翅片厚度为6.14 mm、炉管间距为108 mm时,可保证锅炉内燃料充分燃烧;锅炉炉管后半部温度最高为1881℃,相较于其他位置温度更高;距离炉管5.1~7 m处,炉管向火侧和背火侧温度差距最大;注气锅炉燃烧时,炉管后半段助燃物浓度逐步减弱,燃烧产物浓度逐渐增加;压力不变时,随着温度升高空气辐射传热强度和黑度增加和降低。The radiation section model of steam injection boiler is established by using CFX software,and the boundary conditions at the inlet and outlet of the radiation section are designed to analyze the radiation heat transfer characteristics of steam injection boiler.The results show that when the fin thickness of furnace tube structure is 6.14 mm and the distance between furnace tubes is 108 mm,the full combustion of fuel in the boiler can be ensured;the maximum temperature in the rear half of the boiler tube is 1881℃,which is higher temperature than that in other positions;at a distance of 5.1~7 m from the furnace tube,the temperature difference between the fire side and the fire side of the furnace tube is the largest;when the gas injection boiler is burning,the concentration of combustion supporting substances in the second half of the furnace tube gradually decreases,and the concentration of combustion products gradually increases;when the pressure is constant,the intensity and blackness of air radiation heat transfer increase and decrease with the increase of temperature.

关 键 词：注汽锅炉 辐射段 传热特性 数据建模 膜式水冷壁 燃烧器 

分 类 号：TE934.4[石油与天然气工程—石油机械设备]