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近年来,净水厂内过滤构筑物通过不断科学实验和生产实践,广泛地采用虹吸滤池和无阀滤池。它与普通快滤池比较,具有操作管理方便,造价低,不需要专用的冲洗水泵(或水塔)和大的阀件等优点。其不足之处是池深较大,与目前广泛采用池型浅的斜管(斜板)沉淀池配套使用受到很大的限制。因此,在滤池设计中提出了这样一个课题:怎样充分利用这两种滤池的特点,又能克服池深大的缺陷,使其能与不同类型的沉淀澄清设备配套使用。 1972年底,在泸州皮革化工厂的净水厂设计中,根据上海自来水公司在闸北水厂进
In recent years, filtration structures in water purification plants have adopted siphon filters and valveless filters extensively through continuous scientific experiments and production practices. Compared with ordinary fast filter tank, it has the advantages of convenient operation and management, low cost, and does not require special flushing water pump (or water tower) and large valve parts. The disadvantage is that the pool depth is relatively large, and the use of the inclined tank (slant plate) sedimentation tank, which is widely used in the shallower pool type, is greatly limited. Therefore, such a problem is put forward in the design of the filter tank. How to make full use of the characteristics of these two kinds of filter tanks can also overcome the deep flaws in the pool and enable it to be used together with different types of sedimentation and clarification equipment. At the end of 1972, in the water purification plant design of Zhangzhou Leather Chemical Plant, according to the Shanghai Water Supply Company in Zhabei Water Plant