壁结 meaning in English
wall knot
Examples
- We build a computing temperature model of membrane water wall and educe the relation between the local heat - flux of water wall and temperature of the back of the water wall . we realize the local slagging monitoring of water wall by the way of collection the temperature
在水冷壁结渣监测中，建立了膜式水冷壁温度计算模型，导出了一个水冷壁背火侧两点温度与水冷壁实际局部热流的数学关系，通过采集水冷壁背火侧两点温度，来实现局部结渣监测。 - This article aims at the boiler ' s problems in operation : 1 ) under nominal load , the smoke temperature at the outlet of hearth reaches 1200 , far more exceeds 1050 the original designed temperature . this will always result in slag inside boiler and the temperature of overheater ' s pipe superheat , so that boiler cannot take nominal load and all these influence boiler ' s nomal operation heavily , 2 ) this article also studied the reason why the assistant oil becoming necessary when coal changes . during the nomal operation , many factors ( makeup of combustor and its disposal , smirch and encrust of water wall , excessive air coefficient , temperature of primary air , coal type and density of coal dust ) can deviate the designed working conditions , then affect the boiler ' s nomal operation
本文针对该锅炉在实际运行中存在的问题：在额定负荷下，炉膛出口超温、低温段过热器前烟温高达936 ，远远超过815的设计值；喷燃器四周水冷壁结焦严重，过热器管壁温度超标，无法带上额定负荷；甚至有时因燃煤质量的变化，必须投油助燃的严重情况进行了分析研究。在实际生产过程中，燃烧器的结构、布置，水冷壁的粘污、结垢，过剩空气系数、一次风温、煤种及其浓度变化等许多因素都会偏离锅炉的设计工况，从而影响炉内的传热和燃烧，造成炉膛出口超温、水冷壁结渣等问题。