在管道维修或修复过程中,使用高压空气喷射磨料进行短距离裸露管段的表面处理,是唯一具有实际意义的方法。但人工进行管体表面处理劳动强度大,生产效率低。为满足工作坑短小类型工程的需求,CRC-Evans管道修复公司开发研制了管道表面自动处理设备。经可比试验证明,其各项工作指标都远远优于人工喷砂。同时,为去除旧管段覆盖层而研制了坑下高压水喷射设备BH-HKM,它能以较高的生产效率进行管体表面处理。 In the pipeline repair or repair process, the use of high pressure air blast abrasive surface treatment of bare pipe sections is the only way to make sense. However, labor-intensive manual tube surface treatment, low productivity. To meet the needs of short pit type projects, CRC-Evans pipeline repair company developed a pipeline surface automatic processing equipment. The comparable test proved that its work indicators are far superior to artificial sandblasting. At the same time, in order to remove the overlay of the old pipe, a high pressure water jet BH-HKM was developed which can treat the pipe surface with higher production efficiency.