Hollow fluid micro-filtration diaphragm device

Abstract

The invention relates to a hollow fluid micro-filtration diaphragm device. A plurality of hollow micro-filtration diaphragms are uniformly arranged on a core shaft; small hollow holes are formed in the surface of the core shaft; the hollow micro-filtration diaphragms are divided into upper and lower layers and are in a hollow cavity flow channel layer structure; the filtration accuracy of each hollow micro-filtration diaphragm is 0.1 to 10 microns; internal filtration holes in the diaphragms are in an asymmetric structure to form an irregular bending channel; a hollow cavity consists of a plurality of small radial cavities consisting of radial reinforcing ribs and upper and lower compact layers; and the positions of the small holes in the core shaft correspond to the position of the hollow cavity. A diaphragm filter material adopts an ultra-high molecular weight polyethylene material, and is designed by using a specific production process, the filtration accuracy is 0.1microns to 10 microns, a filtration mode is a dead-end filtration mode, a pollutant can not enter an internal cavity, and the secondary pollution is avoided. The small holes in the core shaft are communicated with the cavities in the hollow micro-filtration diaphragms, so that purified water flows into the core shaft from the cavities and flows out from a water outlet in a cover, waste water is eliminated, and water resources are saved.

Description

technical field [0001] The invention relates to a purification device in the field of water supply treatment, in particular to a fluid hollow microfiltration membrane device, which is especially suitable for being installed on a hollow microfiltration membrane water purifier for filtering drinking water. Background technique [0002] Due to environmental pollution and water shortage in today's world, the rapid development of water treatment technology is forced. At present, the water purification equipment used in the field of water supply treatment is usually filtered by filter elements or filter rods made of filter materials (filter precision > 20μm), and is equipped with a solenoid valve with a wastewater ratio for continuous concentration. And flushing, because the filter element and filter rod are integrally formed, the filtration capacity is limited, the output of filtration capacity per unit area is low, and the pollutants intercepted on the surface are easy to bl...

AI Technical Summary

Problems solved by technology

At present, the water purification equipment used in the field of water supply treatment is usually filtered by filter elements or filter rods made of filter materials (filter precision > 20μm), and is equipped with a solenoid valve with a wastewater ratio for continuous concentration. And flushing, because the filter element and filter rod are integrally formed, the filtration capacity is limited, the output of filtration capacity per unit area is low, and the pollutants intercepted on the surface are easy to block the filter holes, resulting in a short service life of the filter material and cannot be reused; at the same time, the waste water ratio Solenoid valve accessories not only increase the cost, the solenoid valve is prone to failure, and the filtration method is cross-flow filtration, which continuously discharges waste water, resulting in a great waste of water resources

[0003] At the same time, in the field of water supply treatment, there is also a type of fluid filter used in water purification equipment. It is a filter with an overall cavity, and there are several small cavities in the cavity. Since the upper and lower layers are both filter layer, so the filter area is increased and the service life is increased. However, the internal filter holes of the upper and lower filter layers are symmetrical structures, and the pollutants intercepted by the filter membrane are easy to stay in the hollow cavity, polluting the water quality, breeding bacteria, and bringing Secondary pollution

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