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在火力发电工业系统中,水力除灰工程压力输灰管道是一项重要的设备基建项目,长期以来一直是采用钢管作为主要材料。由于管道内部输送着一定流速和压力的炉渣水灰,因而对管壁产生很大的磨损。10毫米壁厚的钢管二年内即可能被磨穿成孔。一般一个火力发电厂的后道出灰工程就得投资七、八十吨钢材,经二、三年使用就得进行较大规模的维修更换,对生产影响较大。 对此,国内一些科研单位和发电厂曾作
In the thermal power industrial system, the hydraulic ash conveying pipeline pressure ash pipeline is an important equipment infrastructure project. For a long time, it has been using steel pipes as the main material. As the slag water ash conveys a certain flow velocity and pressure inside the pipe, great wear occurs on the pipe wall. A 10 mm thick steel pipe may be ground into a hole within two years. Generally, a ash-removing project of a thermal power plant can only invest 70 to 80 tons of steel. After two or three years of use, it will require large-scale maintenance and replacement, which will have a greater impact on production. In response, some domestic research institutes and power plants have made