Laminated filter with automatic cleaning device

Abstract

The invention provides a laminated filter with an automatic cleaning device. The laminated filter comprises a shell and a filter element, wherein the shell is a cylinder of which the two ends are provided with end covers; a water inlet and a water outlet are formed on the two end covers or close to the ends of the cylinder respectively; the filter element consists of a group of hollow filtering disks and a water outlet core tube; the hollow filtering disks are sleeved on the water outlet core tube; space is reserved between two adjacent hollow filtering disks; water from the hollow filtering disks flows into the water outlet core tube; one end of the water outlet core tube is closed, while the other end is provided with a water outlet which is connected with the water outlet of the filter or directly used as the water outlet of the filter; the laminated filter is also provided with a cleaning device which comprises a cleaning brush frame, a cleaning brush, a driving device and a mounting frame; the mounting frame is connected with the driving device; the cleaning brush frame is fixed on the mounting frame; the head of the cleaning brush is positioned on the surface of the annular filtering disk; and the cleaning device is driven to rotate by the driving device so as to clean the filtering disks. The laminated filter can be used for filtering the ballast water, cooling water and the like of ships.

Description

Technical field: [0001] The invention relates to a large-flow filter, in particular to a laminated filter with an automatic cleaning device, 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 ...

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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