Unpowered automatic cleaning laminated filter

Abstract

The invention provides an unpowered automatic cleaning laminated filter, which comprises a shell and a filter element, wherein the shell is a cylinder with end covers at two ends; a water inlet and a water outlet are arranged on the two end covers or at positions close to the end parts of the cylinder; the filter element consists of a group of hollow filter discs and a water outlet core pipe; the hollow filter discs are sleeved on the water outlet core pipe; a distance is kept between each two adjacent hollow filter discs; the effluent of the hollow filter discs flows into the water outlet core pipe; and one end of the water outlet pipe is closed, while the other end is provided with a water outlet, which is connected with the water outlet of the filter or directly serves as the water outlet of the filter. The filter also has a washing device which comprises a cleaning brush holder, a cleaning brush, a driving device and a mounting frame, wherein the mounting frame is connected with the driving device; the cleaning brush is fixed on the mounting frame; the head of the cleaning brush is positioned on the surface of the annular filter discs; and the cleaning device is driven by the driving device to rotate to realize the cleaning of the filter discs. The filter can be used for filtering ship ballast water, cooling water and the like.

Description

Technical field: [0001] The invention relates to a large-flow filter, in particular to a non-powered self-cleaning laminated filter, which belongs to the technical field of filtering equipment. Background technique: [0002] Fully automatic laminated filter has been widely used in developed countries, mainly composed of filter housing and filter element, characterized in that the shape of the filter element is a hollow cylinder, and the hollow cylinder is composed of many ring discs with grooves on both sides Assembled 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, and the fluid flows through the gap between the two discs; when backwashing, The direction of the water flow in the filter unit is changed by the backwash valve, the spring on the filter element is pushed open by the water pressure, all the disks and the small gaps between the disks are loos...

AI Technical Summary

Problems solved by technology

The disc filter mentioned above has a good filtering effect, but it is difficult for the backwashing water to wash away the dirt adhering to the disc surface. Therefore, the filtering effect will be affected over time.

Since this filter is suitable for a filtration system with a large amount of water, the problem of this cleaning is particularly prominent. It must be cleaned thoroughly by manual cleaning, but it requires a lot of labor and high cost, and it needs to be shut down during cleaning, so that the system cannot run continuously.

Moreover, its filtering effect is certain and cannot meet different filtering requirements. Therefore, a filter that can overcome the above-mentioned difficulties, can be continuously operated and online automatic cleaning, low cost, high-efficiency, and large flow, and can change the filtering effect is needed. system to meet actual needs

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