对超临界锅炉螺旋管圈和内螺纹垂直管圈2种水冷壁的结构特点、优缺点以及稳压吹管阶段和机组各负荷阶段的热偏差进行了分析和比较。结果表明,螺旋管圈水冷壁对机组负荷变化、燃料变化的适应性较好,但阻力较大,焊接工作量大,系统结构复杂;内螺纹型垂直管圈水冷壁阻力小,安装焊缝少,支撑结构和刚性梁结构简单,但对吸热偏差较敏感。二者在性能上各有特点,设计时可根据具体情
超临界锅炉螺旋管圈与内螺纹垂直管圈
水冷壁特,比较 I生高花妮'
霖 ,罗建平7 9 1 1 397 0 6 1 05
源司陕 1神华陕西国华锦界能有限责任公,西榆林 .(西有司陕 2华北电力科学研究院安 )限公,西西安 .
[摘
优要]对超临界锅炉螺旋管圈和内螺纹垂直管圈 2种水冷壁的结构特点、缺点以及稳压吹 管阶段和机组各负荷阶段的热偏差进行了分析和比较。结果表明,螺旋管圈水冷壁对机组负荷变化燃料变化的适应性较好,阻力较大,接工作量大,但焊系统结构复杂; 内左、
螺纹型垂直管圈水冷壁阻力小,装焊缝少,安支撑结构和刚性梁结构简单,对吸热偏但差较敏感。二者在性能上各有特点,设计时可根据具体情况分析选用。水螺内螺纹垂直管;流孔圈;偏差节热[关键词]锅炉;冷壁;旋管;23 3 [图分类号] T K 2 . 1中
[文献标识码] B 3 4( 01 ) 6—0 01一O 0 5[章编号] 1 0文 0 2—3 6 2 2 0
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