a dirt blocking device

Abstract

The invention discloses a trash holding device, and belongs to the field of circulating water taking and filtering. The trash holding device comprises at least one flow guide wall, at least two trash holding nets and a compressed air releasing system. Trash holding nets are respectively fixedly arranged on two optional adjacent flow guide walls and between the flow guide walls positioned on two sides and a wall of a front pond of a pump room, the compressed air releasing system is arranged at the bottom of the front pond of the pump room, when difference of water levels of two sides of the trash holding nets reaches a first preset numerical value, the compressed air releasing system releases compressed air so that trash attached to the trash holding nets is separated from the trash holding nets and floats on water surfaces of one sides, which are away from the pump room, of the trash holding nets, so that water flow can smoothly pass through the trash holding nets, the circumstances that a connection point between an optional trash holding net and the flow guide walls on two sides of the trash holding net or a connection point between the optional trash holding net and the wall of the front pond of the pump room is broken under the effect of pressure of water, and then trash blocks circulating water filtering equipment such as a grate and a drum net are avoided, and then a unit can run safely and stably.

Description

technical field [0001] The invention relates to the field of circulating water intake and filtration, in particular to a pollution blocking device. Background technique [0002] The circulating water intake facilities of the Binhai Power Plant are built in the area near the coastline of the Binhai. Floating objects or marine organisms in the seawater are easy to block the circulating water filtration equipment such as grilles and drum nets in the power plant, resulting in tripping of the generating units of the power plant. When seawater is introduced into the pump room for water intake of the coastal power plant, it is necessary to install a trash blocking device at a certain distance from the pump room to intercept and remove floating objects or marine organisms in the sea water. [0003] The current trash blocking device includes a first fixed pier, a second fixed pier, a cable, a trash net and a floating ball. One end is fixed on the first fixed pier, the other end is f...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the difficulty in cleaning the dirt accumulated on the net and in front of the trash net in the prior art, it is usually not cleaned in time, which will lead to an increase in the power consumption of the circulating water pump for water intake, and the dirt will easily enter the pump room to block Circulating water filtration equipment such as grids and drum nets cause the generator set to trip and stop. The embodiment of the present invention provides a pollution blocking device

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