Integrated composite spiral-wound membrane

Abstract

The invention discloses an integrated composite spiral-wound membrane. The integrated composite spiral-wound membrane is arranged in a spiral-wound membrane housing, and comprises a spiral-wound membrane which is mainly composed of a membrane sheet and a hollow center tube used for winding the membrane sheet; the hollow center tube is provided with a plurality of water inlets; water filtered via the membrane sheet is delivered into a tube chamber of the hollow center tube; the diameter of the hollow center tube matches the tube diameter of the spiral-wound membrane housing; and a filter material is arranged in the tube chamber of the hollow center tube. The integrated composite spiral-wound membrane is capable of reducing whole machine size, increasing water yield, and is convenient for dismounting.

Description

technical field [0001] The invention relates to a water filtering device, in particular to an integrated composite roll-type membrane structure. Background technique [0002] With the rapid development of the country's industrialization, water pollution has become a major problem that the country needs to solve urgently. People's pursuit of a healthy life forms a sharp contradiction with the deteriorating domestic drinking water. In order to solve the current situation of drinking water, reverse osmosis pure water machines are favored by users. [0003] The structure of the existing water purification equipment is: the diaphragm is wound on the center pipe in circles, and then the center pipe is installed in the membrane shell. The diameter of the membrane shell is standard and fixed in the industry. The inner diameter of the center pipe is usually very small, and several water inlet holes are opened on it. The water filtered by the membrane enters the cavity of the cent...

AI Technical Summary

Problems solved by technology

This structure results in a small number of water inlet holes on the central tube and a small water intake, which affects the filtered water flow rate and water volume.

[0005] In addition, in the existing water purification equipment, when the central tube wrapped with the diaphragm is taken out of the membrane shell for replacement or maintenance, it is necessary to apply force from one end of the central tube

Due to the tight seal between the center tube and the membrane shell, a relatively large force needs to be applied when taking it out, and due to the structural limitations of the existing center tube itself, it is impossible to find a suitable force application point when applying force, and it is very difficult to operate even with tools. Inconvenient, or even damage, causing a lot of inconvenience for replacement and repair

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