Device for automatically cleaning flat filter screen in forebay

Abstract

The invention provides a device for automatically cleaning a flat plate filter screen in a forebay. The device comprises a fixing frame, a flat plate filter screen mounted on the fixing frame, a temporary storage hopper arranged on the outer side of the flat plate filter screen, and a lifting motor. A scraping and brushing mechanism is arranged on the outer side face, right opposite to the flat plate filter screen, of the temporary storage hopper, the gap between the scraping and brushing mechanism and the flat plate filter screen ranges from 3mm to 6mm, the lifting motor drives the temporarystorage hopper to ascend and descend in the direction parallel to the flat plate filter screen, and in the initial state, the temporary storage hopper is located at the bottom end of the outer side ofthe flat plate filter screen. The device for automatically cleaning a flat plate filter screen of a forebay has the advantages of scientific design, good cleaning effect, no damage to the filter screen, intelligence and high efficiency.

Description

technical field [0001] The invention relates to a flat screen filter for a pool, in particular to a flat screen filter device for automatic cleaning of a forebay. Background technique [0002] The forebay cooling water is the cooling water that cools and condenses the exhaust steam of the steam turbine into water. The open unit generally absorbs a certain amount of water from natural water bodies such as rivers, rivers, lakes, and seas, and uses it as cooling water after being filtered by the forebay. The steam turbine exhausts steam, absorbs waste heat to raise the water temperature, and then discharges it. However, due to the large amount of gravel, fish, shrimp, shellfish, and aquatic plants in the open unit, the traditional flat filter screen is prone to clogging, and the cleaning method is generally used to clean it. This method is not only troublesome, but also easy to damage the filter screen, resulting in a large number of Debris entering the rear stage will increas...

AI Technical Summary

Problems solved by technology

However, due to the large amount of gravel, fish, shrimp, shellfish, and aquatic plants in the open unit, the traditional flat filter screen is prone to clogging, and the cleaning method is generally used to clean it. This method is not only troublesome, but also easy to damage the filter screen, resulting in a large number of Debris enters the back stage to increase the burden on the secondary filter, and even cause the secondary filter to be stuck, reducing the output of the unit and directly affecting the power generation efficiency

Images