Filter core structure

Abstract

The invention provides a filter core structure. The filter core structure comprises a housing provided with an inner cavity; the top of the housing is provided with a raw water port, a pure water port, and a waste water port which are communicated with the inner cavity; a filter assembly is arranged in the inner cavity; the top side of the filter assembly is provided with a raw water inlet communicated with and matching the raw water port, and a pure water outlet communicated with and matching the pure water port; the bottom side of the filter assembly is provided with a waste water outlet; awater storage space is arranged between the waste water outlet and the bottom of the inner cavity; the waste water outlet is provided with a single direction water guide valve which is used for guiding single direction discharge of waste water into the water storage space; a waste water runner communicated with the water storage space and the waste water port is formed between the periphery of thefilter assembly and the side wall of the inner cavity. Adoption of the filter core structure is capable of solving a corresponding water purifying device initial discharge water TDS standard exceeding problem effectively, and ensuring user drinking water to be good for health.

Description

technical field [0001] The invention relates to the technical field of water purification equipment, in particular to a filter element structure. Background technique [0002] The water purifier in the prior art may be filtered with a reverse osmosis filter element. After the water purifier is shut down for a long time, the water in the reverse osmosis filter element that is originally on the raw water or concentrated water side will flow to the pure water of the membrane. When the water end permeates, the high TDS solutes on the concentrated water side of the diaphragm will also infiltrate into the pure water side, resulting in a higher TDS at the pure water end; then when the water purifier is discharged again, the TDS will exceed the standard. Contents of the invention [0003] The object of the present invention is to provide a filter core structure to overcome the deficiencies of the prior art. [0004] The filter core structure includes a housing with an inner cavit...

AI Technical Summary

Problems solved by technology

[0002] The water purifier in the prior art may be filtered with a reverse osmosis filter element. After the water purifier is shut down for a long time, the water in the reverse osmosis filter element that is originally on the raw water or concentrated water side will flow to the pure water of the membrane. When the water end permeates, the high TDS solutes on the concentrated water side of the diaphragm will also penetrate into the pure water side, resulting in a high TDS at the pure water end; when the water purifier is discharged again, the TDS will exceed the standard.

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