毕业论文_nfdl工艺模块化净水设备结构设计论文.docVIP

毕业设计 题 目 FDL工艺模块化净水设备结构设计 学 院 专 业 班 级 学 生 学 号 指导教师 二〇一一 年 月 日我国幅员辽阔，水资源总量较大，人口众多，人均水资源量地表水我国的水资源，水质成分比较复杂，对生活用水尤其是农村饮水安全构成了很大威胁要保证饮水安全，实现“农村供水城市化，城乡供水一体化”，就需要多建水厂。可利用土地资源非常紧缺因此如何在工程项目建设中节约用地，也是重要的课题寻找一种高效的水处理工艺紧凑的设备结构，模块化净水将混合、絮凝、沉淀、排污、反冲、集水过滤等水处理工艺集成在净水模块内、采用、高效斜管沉淀、层滤料过滤等先进工艺适用范围广，处理效果好，出水水质优良，占地面积小，而且耗水量少，节能、高效、安全 关键词：模块化；穿孔旋流；斜管；滤料过滤。 ABSTRACT Although China has vast territory and a large total water resources, because of our large population so the water resources per capita is very little. Most of Chinese water resources is the surface water and water quality constituents are complex. These factors, on the domestic water, especially in rural drinking water, pose a great threat to security. To ensure the safety of drinking water, to achieve the urbanization of rural water supply, urban and rural water supply integration , we need to build more water plant. Now in china available land resources is very scarce. So how to conservation land in construction drinking water project is an important issue. For the problem, under the guidance of the goal that is not only to provide safe drinking water for people, but also economical use of land, we propose the concept of modular water purification system. Now in China water purification system with low degree of automation, covers an larger area and low efficiency of water treatment. Thus to find out an efficient water treatment process, designed compact device structure, increase automation degree of the equipment are the problems needed to resolve at this stage. Modularization of water purification device is an automated, standardized equipment integrate mixing, flocculation, sedimentation, sewage, recoil, watershed filtration and other water treatment processes in some single unit of the water purification modules, under the control of Modular control technology to complete the purification of raw wate in single unit of the water purification module. The device can reduce the labor intensity of t