A hollow filter disc and a laminated filter using the filter disc

Abstract

The invention provides a hollow filtration disk and a laminated filter using the same. The hollow filtration disk comprises two circular disks with filtration pores and a hollow circular framework of which the size and shape are matched with the size and shape of the hollow filtration disk, wherein a through hole is formed on the internal side of the circular framework; the circular disks are compacted, detachably fixed on two circular faces of the circular framework and sealed at the contact position; and a water storage cavity is formed between the two circular disks and the circular framework. A filter cartridge of the laminated filter consists of a group of the hollow filtration disks and a water outlet pipe with a water inlet on the side face, wherein the hollow filtration disks are arranged on the water outlet pipe. The laminated filter adopting the technical scheme can be widely applied to the pre-treatment of ultrafiltration and microfiltration of ship ballast water, water for heat exchangers, circulating cooling water and nozzles, and the filtration of water for industries, such as water softening systems, waste water, water reuse, foods, medicaments, vehicles, electronics, metallurgy and chemistry, cultivation, agricultural irrigation and the like.

Description

Technical field: [0001] The invention relates to a filter disc and a filter for a filter with a large flow rate, in particular to a hollow filter disc and a filter whose filter element is composed of laminated discs, and belongs to the technical field of filtering equipment. Background technique: [0002] The application of fully automatic laminated filters in developed countries has been quite common. It is mainly composed of a filter housing and a filter element. It is characterized in that the shape of the filter element is a hollow cylinder, and the hollow cylinder is assembled by many ring discs with grooves on both sides. Composed on the central frame, the disc is pressed by the springs at both ends of the central frame, and the disc compressed by the spring and water pressure forms a filter screen, the fluid flows through the gap between the two discs, and the filter surface is two The gap in the middle of the disc, the filtration flow rate of a single disc is small; ...

AI Technical Summary

Problems solved by technology

[0002] The application of fully automatic laminated filters in developed countries has been quite common. It is mainly composed of a filter housing and a filter element. It is characterized in that the shape of the filter element is a hollow cylinder, and the hollow cylinder is assembled by many ring discs with grooves on both sides. Composed on the central frame, the disc is pressed by the springs at both ends of the central frame, and the disc compressed by the spring and water pressure forms a filter screen, the fluid flows through the gap between the two discs, and the filter surface is two The gap in the middle of the disc, the filtration flow rate of a single disc is small; once the filter is formed, the filtering requirements it adapts to are certain, and its filtering surface is small, so the filtering flow rate it adapts to is small; and after a group of filter discs are compressed, the gap is fixed Therefore, its filtering effect is certain and cannot meet different filtering requirements. Therefore, a large-flow filter disc with a large filtering surface and adapting to different filtering requirements and a large-flow filter disc that can meet different filtering requirements are required to overcome the above difficulties. Flow, adapt to different filtration requirements, low cost, high efficiency filtration system to meet actual needs

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