A water purifier and its reverse osmosis membrane element and central water production pipe

Abstract

The invention discloses a central water-producing pipe of a reverse osmosis membrane element. The pipe comprises a pipe body with through-holes which are narrow holes with a length along the axial direction of the pipe body larger than the length along the circumferential direction of the pipe body. According to the invention, the through-holes are arranged as the narrow holes, and the length along the axial direction of the pipe body is enlarged under the condition of an invariant length along the circumferential direction of the pipe body relative to circular holes, so the purpose of enlarging water inlet area is achieved; and under the condition of invariant water inlet operation pressure of the reverse osmosis membrane element, collection rate of pure water purified through a reverse osmosis membrane can be increased, so water-producing efficiency of the reverse osmosis membrane element is improved. The invention also discloses the reverse osmosis membrane element with the above-mentioned central water-producing pipe, and a water purifier with the reverse osmosis membrane element.

Description

technical field [0001] The invention relates to the technical field of drinking water purification, in particular to a water purifier, a reverse osmosis membrane element and a central water production pipe. Background technique [0002] The household reverse osmosis membrane element uses a super static pressure pump to generate high pressure osmosis, so that water molecules and ionic mineral elements pass through the reverse osmosis membrane, while most of the heavy metals, organic matter, bacteria, viruses, etc. dissolved in the water cannot pass through. The reverse osmosis membrane is intercepted, and based on the principle of reverse osmosis, the impure substances contained in the water such as pyrogens, filtering viruses, bacteria, toxins, compounds, heavy metals (arsenic, cobalt, cadmium, mercury, etc.) toxic substances, metals, salts , free ions and other substances that endanger human health. The reverse osmosis membrane isolates impurities from pure water and produ...

AI Technical Summary

Problems solved by technology

[0004] However, the diameter of such a circular hole is generally 20% to 30% of the outer diameter of the central water production pipe. The central water production pipe with this structure has a small through hole area, which leads to the inability of the produced water to collect and flow out in time, resulting in reverse osmosis. Membrane back pressure increases, thus affecting water production efficiency

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