绿色清洗技术在电厂灰场回水管道中的应用

大庆石化公司热电厂应用空穴射流技术,解决了灰场回水管道结垢难题。介绍该技术的工作原理和使用条件,并说明了实施情况:将预先设计好的清洗器投入管道内,以压力水作为动力推进清洗器,通过电子定位仪观测清洗器的运动状态。如清洗器遇到卡阻,通过电子定位仪可迅速确定位置,并排除故障,直到清洗器行进到接收装置。总结了在清洗过程中遇到的问题和解决办法。应用结果表明,清洗后2条回水管线残留垢厚不超过2mm,管线的防腐涂层完好,灰场回水管线流量达到了预期要求。

Application of green cleaning technology in the recycling ash-water system for ash yard of power plant

The Cogeneration Power Plant of Daqing Petrochemical Company solved the tough fouling problem in recycling ash-water system of ash yard by using cavitating water jets. The working principles and application conditions of this technology were introduced and the implementation was presented. A pre-designed cleaner was put into the pipe and pushed forward by pressurized water; the movement of cleaner can be observed with an electronic positioner. If the cleaner gets stuck, the electronic positioner can locate it quickly and get rid of the block until it reaches the receiving device. The problems and their solutions encountered during cleaning were summarized. The application result shows that the remaining fouling is no more than 2 mm thick for the two water returning pipe after cleaning, the pipe anti-corrosion coatings are integral and the flow of the water returning pips for the ash yard meets the anticipated requirements.