Side-flow type reverse osmosis filter element and water purifier

Abstract

The invention discloses a side-flow type reverse osmosis filter element. According to the invention, a fresh water center pipe is located at the center; purified water enters from a purified water inlet and then flows towards the end of the fresh water center pipe in the length direction of the fresh water center pipe; a filtering layer comprises a reverse osmosis membrane, a fresh water flow guide net and a concentrated water flow guide net which are stacked layer by layer; a fresh water cavity is defined by the reverse osmosis membrane and the fresh water flow guide net, and waterproof adhesive tapes are arranged on the upper edge, the lower edge and the outer side edge of the fresh water cavity; a concentrated water cavity is defined by the reverse osmosis membrane and the concentratedwater flow guide net, and waterproof adhesive tapes are arranged on the upper edge and the lower edge of the concentrated water cavity; and concentrated water outlets are formed in the waterproof adhesive tapes arranged on the upper edge and the lower edge. The side-flow type reverse osmosis filter element of the invention allows raw water to enter from a side wall, purified water to flow out fromthe fresh water center pipe and concentrated water to flow out from the two ends of the filtering layer; during the flowing of the concentrated water from the side surfaces, the flow of the concentrated water is guided by the waterproof adhesive tapes arranged in the middle of the concentrated water cavity, so the concentrated water has a faster flowing speed and conducts scouring effect; and thus, the attachment of dirt on the surface of the reverse osmosis membrane is reduced, and the service life of the filter element is prolonged.

Description

technical field [0001] The invention relates to the technical field of water purification equipment, and further relates to a side flow reverse osmosis filter element. In addition, the present invention also relates to a water purifier. Background technique [0002] Reverse osmosis membrane is an artificial semipermeable membrane made of simulated biological semipermeable membrane, which is the core component of reverse osmosis technology. The membrane pore size of the reverse osmosis membrane is very small, so it can effectively remove dissolved salts, colloids, microorganisms, organic matter, etc. in water. [0003] The principle of reverse osmosis technology is that under the action of the osmotic pressure higher than the solution, other substances cannot pass through the semi-permeable membrane, thereby separating these substances from water; it has the advantages of good water quality, low energy consumption, no pollution, simple process, and easy operation. . [000...

AI Technical Summary

Problems solved by technology

[0004] The existing reverse osmosis membrane element is composed of a central tube and a reverse osmosis membrane module group wound on the central tube. The raw water enters from one end of the reverse osmosis membrane element and flows out from the other end. The flow rate of raw water or concentrated water; because the current flow of water in the reverse osmosis membrane is relatively slow, and the water contains certain pollutants and ions, the surface of the reverse osmosis membrane will continue to accumulate dirt

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