Nuclear power plant shellfish catcher and fluid filtering method thereof

Abstract

The invention provides a nuclear power plant shellfish catcher and a fluid filtering method thereof. The nuclear power plant shellfish catcher comprises: a fluid inlet end for entering of seawater; acylinder body fixedly connected with the fluid inlet end and used for forming a fluid channel to contain the seawater; a filtering cylinder arranged in the cylinder body and used for filtering the seawater; a fluid outlet end fixedly connected with the cylinder body, perpendicular to the fluid inlet end and used for allowing filtered seawater to flow out; a power assembly fixedly connected with the cylinder body and used for providing rotary driving force through the rotary shaft of the power assembly in a filtering cylinder backwashing mode; a rotating shaft, wherein the two ends of the rotating shaft are fixedly connected with the rotary shaft of the power assembly and the filtering cylinder, and the rotating shaft is used for transmitting rotating driving force to the filtering cylinderto drive the filtering cylinder to rotate; and a plurality of backwashing pipe nozzles fixedly connected with the cylinder body and used for backwashing the filtering cylinder. According to the invention, the nuclear power plant shellfish catcher can effectively filter impurities in seawater of an important service water system to ensure the availability of the important service water system so as to finally ensure the nuclear safety.

Description

technical field [0001] The invention relates to the field of nuclear power plant equipment, in particular to a nuclear power plant shellfish trap and a fluid filtering method thereof. Background technique [0002] At present, in the important plant water system of nuclear power plants, shellfish traps are used to filter shellfish and other marine organisms and other debris to prevent debris from entering the heat exchanger and causing blockage accidents. [0003] The shellfish traps in the prior art mostly use rotating backwashing rotors to partially backwash the mesh surface of the filter screen, and the mesh surface itself does not rotate. This backwashing method has the following defects: the backwashing mesh surface is small, and the unit time The processing volume is small, and it is difficult to cope with the extreme situation that a large amount of impurities enter the shellfish trap at the same time. [0004] Therefore, there is an urgent need to find a nuclear powe...

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Problems solved by technology

[0005] The present invention aims at the technical problems existing in the prior art that the backwashing mesh surface is small, the processing capacity per unit time is small, and it is difficult to deal with a large amount of impurities entering the shellfish trap at the same time, and provides a nuclear power plant shellfish trap and its fluid filtration method

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