论文部分内容阅读
锅炉管子受飞灰磨损,通常是对着烟气流动的半个圆周,但是在这半个圆周上各处的磨损情况是不一样的,如图1所示。当烟气纯粹是横向流过错列管束时,以第二排管子受到磨损最为剧烈,同一管子不同冲击角处的磨损值也不一样,第一排管子迎面两侧对称40°之处磨损较为严重,第一排以后的管子则在迎面两侧对称30°之处较为严重。当烟气纯粹是横向流过顺列管束时,以第四、五排管子受到磨损最为剧烈,第一排以后的管子则在迎面两侧对称60°之处磨损较
The boiler tubes are frayed with fly ash, usually half the circumference of the flue gas flow, but wear is not uniform across these half circles, as shown in Figure 1. When the flue gas is purely lateral flow through the wrong tube bundle, the second row of tubes is most severely worn, the same tube at different impact angle wear value is not the same, the first row of tubes on both sides of symmetry 40 ° wear more serious , After the first row of pipes on both sides of the symmetry of 30 ° at the more serious. When the flue gas is purely transverse flow through the tube bundle, the fourth and fifth rows of tubes are most severely worn, while the first row and later tubes wear symmetrically on both sides of the symmetric 60 °