Analysis and Treatment for Cause of#~ 1 Shielding Superheater Pipe Explosion in Baihe Power Plant 白鹤发电厂~1炉屏式过热器爆管原因分析及对策
Whereas in the operation of pipelines, the pipe inside the conduit was in the shielding area of the cathodic protection system because of the shielding of the conduit and cathodic current provided little protection to the pipe. 但在管道的运行过程中,由于套管的屏蔽作用,套管内的管段处于线路阴极保护系统的屏蔽区,阴保电流不能对其起到保护作用,使其成为线路防护的薄弱环节。
The manufacture process adopts stainless steel thin strip continually automatic forming and welding to stainless welded pipe as cladding pipe. Through cladding pipe and carbon steel base pipe to deposit braze and under inert gases shielding, through continuously induction heated compound as cladding pipe. 该制造工艺采用不锈钢薄钢带连续自动成型焊接成不锈钢焊管作覆层管,通过在覆层管和碳钢基管间放置钎料,在惰性气体保护下,经连续感应加热复合而成。