A device for automatically cleaning trash-stop nets in seawater intake channels of power stations

Abstract

The invention relates to the technical field of nuclear power station maintenance, and particularly discloses an automatic cleaning and trash blocking net device for a power station seawater water-intaking open channel. The device is arranged in the water channel, dirt is intercepted through a concentric-square-shaped trash blocking net, moreover, the dirt in the water channel is taken away from the water surface by rotating, when the dirt rotates along with the concentric-square-shaped trash blocking net to the position between a driving roller and a follow-up roller, high-pressure water mistsprayed out of a back flushing nozzle is used for washing dirt which is adhered to the outer surface of the concentric-square-shaped trash blocking net away from a net body, the dirt is scraped awaythrough a back flushing baffle to be further collected onto a dirt conveying belt, and the dirt is transported to a collecting box at the top of a bank slope through the dirt conveying belt. Accordingto the device, electric control automatic cleaning is adopted to replace manpower to automatically intercept and clear the dirt in the seawater water-intaking open channel of the power station, so that the clearing and maintaining efficiency is improved, and the problem that the influences of weather and people on the existing trash blocking and trash removing construction activities are generally large is solved.

Description

technical field [0001] The invention belongs to the technical field of nuclear power plant maintenance, and in particular relates to an automatic cleaning trash-stop net device for a sea water intake channel of a power plant. Background technique [0002] During operation, there are unforeseen pollutants in the seawater intake channels of nuclear power plants, such as seaweed, fish, jellyfish, garbage, and shell fragments. form. In the sea water intake channel, several straight nets are arranged horizontally as trash nets to block the entire cross-section of the flow channel in multiple layers. The mesh diameter of the trash nets decreases from the outside to the inside in order to filter and intercept the dirt layer by layer. When the weather is small, the dirt in the net will be salvaged to the cabin by a specially-assigned boat. Due to the unpredictability of seawater sewage and the influence of weather, ocean currents, human activities, etc., there may be explosive gro...

AI Technical Summary

Problems solved by technology

If the ship cannot be launched in bad weather, the dirt will not be cleaned up in time, and the excessive accumulation of dirt will pass through the trash net and enter the drum net, resulting in failure of the cold source of the power station and affecting the safe operation of the power station

Therefore, when there is a lot of dirt in the water area, it needs to be cleaned up every day, which will consume a lot of labor costs, and a lot of water surface operations will also increase the risk of drowning and heat stroke

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