Composite filter core assembly and water purification system

Abstract

The invention provides a composite filter core assembly and a water purification system, the composite filter core assembly comprises a bottle body (604) and multistage filter cores arranged in the bottle body, a pretreatment filter core, a fine filter core (203) and a post-treatment filter core group; wherein the post-treatment filter element group comprises a central pipe (602), and the centralpipe (602) is made of a filter material capable of allowing fluid to pass through; fluid sequentially passes through the pretreatment filter core, the fine filter core and the post-treatment filter core group to be filtered, and a descaling filter core (204) is further arranged between the pretreatment filter core and the fine filter core (203) in the flowing direction of the fluid. According to the invention, water to-be-treated is treated by the sintering carbon rod and then is treated by the descaling filter core before entering a reverse osmosis filter element; therefore, the possibility of scaling of the concentrated water in the composite filter element is greatly reduced, blockage in the composite filter core is effectively prevented, and the service life of the composite filter element is longer.

Description

technical field [0001] The invention belongs to the technical field of water purification, and in particular relates to a composite filter element assembly and a water purification system. Background technique [0002] In the existing water purification equipment, because the water purification needs to be processed in multiple steps, it often requires 3 and 4 filter elements, and the water outlets and water inlets between different filter elements need to be connected by external pipes, so that the water purification The internal pipelines of the equipment are complicated, and the space of the water purification equipment is large, which is inconvenient to install and use; in the existing composite filter element, multi-stage filter element components are generally integrated into a cylindrical shell to form a composite filter element, which greatly reduces the net The water machine takes up little space and is convenient to install and use. [0003] However, in the compos...

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Problems solved by technology

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the existence of the composite filter element of the water purifier in the prior art. Because the internal structure is relatively tight, when the concentrated water filtered by the RO membrane flows inside the narrow composite filter element, it is easy to scale and cause Composite filter element internal clogging defects, thereby providing a composite filter element assembly and water purification system

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