Central pipe for filter element and multi-film filter element with central pipe

Abstract

The invention discloses a central pipe for a filter element and a multi-film filter element with the central pipe. A runner which extends along the axis of the central pipe is formed in the central pipe; a through hole communicated with the runner is formed on at least one position at the upper end and lower end of the central pipe; the central pipe comprises a first half pipe and a second half pipe; the first half pipe and the second half pipe both extend along the up-and-down direction; the second half pipe is connected with the left side of the first half pipe, so that the first half pipe and the second half pipe are matched with each other and formed into the central pipe; a first runner extending along the up-and-down direction is formed on the inner side wall of the first half pipe; a second runner extending along the up-and-down direction is formed on the inner side wall of the second half pipe; the first runner and the second runner are matched with each other and formed into the runner of the central pipe; water holes communicated with the runner are formed on the first half pipe and the second half pipe. The central pipe for the filter element provided by the invention has the advantages that the inner structure of the central pipe can be conveniently processed, the processing property of the central pipe can be increased and the batch production and assembly can be conveniently performed.

Description

technical field [0001] The invention relates to the technical field of water purification equipment, in particular to a central pipe used for a filter core and a multi-membrane filter core with the same. Background technique [0002] Water purifier technology is mainly based on activated carbon, ultrafiltration, reverse osmosis, nanofiltration and other filtration technologies. The core of reverse osmosis and nanofiltration technology is the membrane element rolled by flat membrane. However, while reverse osmosis and nanofiltration membrane elements produce pure water, they also produce a large amount of waste water. For ordinary membrane elements, if you want to increase the proportion of pure water and reduce the proportion of wastewater, the pollutants on the surface of the membrane will be enriched, and the flow rate on the surface of the membrane will be reduced, so it is easy to be polluted. [0003] Compared with low-flux membrane elements, large-flux membrane elemen...

AI Technical Summary

Problems solved by technology

However, while reverse osmosis and nanofiltration membrane elements produce pure water, they also produce a large amount of waste water

For ordinary membrane elements, if you want to increase the proportion of pure water and reduce the proportion of wastewater, the pollutants on the surface of the membrane will be enriched, and the flow rate on the surface of the membrane will decrease, so it is easy to be polluted

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