电厂水力除灰管路系统降水耗问题研究

A Study on the Possibility of Reducing of Reducing the Water Consumption of Hydraulic Ash Removal Systems.

对于广大缺水地区，节约用水始终是一项重要任务．就电厂而言，采用离心式灰浆泵的低浓度水力输灰系统普遍存在输灰水耗过大的问题．该文通过对灰管流在定压头下的最大输灰力和临界淤积流速的分析、研究，提出了输灰系统降低水耗的合理途径．

Abstract Retrenchment of ater remains tO be a vital task for all regions which are in want of water. As for power plants,there exists the problem of too much water being consumed by centrifugal ash sluicing pumps that use low concentrated ash containing water. The paper proposes a rational way of reducing water consumption after having Conducted an analytical study of the maximal ash conveying ability and the critical sedimentation velocity- of an ash entraining flow flowing with a constant pressure head in a pope.