Nuclear power plant shellfish catcher and fluid filtering method thereof

A technology of traps and nuclear power plants, applied in chemical instruments and methods, filtration separation, separation methods, etc., can solve the problem that it is difficult to deal with a large number of impurities entering the shellfish trap at the same time, the processing capacity per unit time is small, and the backwashing of the mesh surface is difficult. Small and other problems, to achieve the effect of strong backwashing ability, guaranteed usability, and large filtration area

Inactive Publication Date: 2020-04-10
中广核工程有限公司 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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  • Nuclear power plant shellfish catcher and fluid filtering method thereof
  • Nuclear power plant shellfish catcher and fluid filtering method thereof
  • Nuclear power plant shellfish catcher and fluid filtering method thereof

Examples

Experimental program
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Example Embodiment

[0031] Example one

[0032] The invention provides a shellfish trap for nuclear power plants, such as figure 1 As shown, the shellfish trap of the nuclear power plant includes:

[0033] The fluid inlet port 1 is used for sea water to enter;

[0034] The cylinder 2 is fixedly connected with the fluid inlet end 1 and is used to form a fluid channel for containing seawater;

[0035] The fluid outlet end 4 is fixedly connected to the cylinder 2 and perpendicular to the fluid inlet end 1 for the filtered seawater to flow out;

[0036] Further, as figure 2 As shown, the shellfish trap of the nuclear power plant also includes:

[0037] The filter cartridge 3 is arranged inside the barrel 2 for filtering seawater;

[0038] The power assembly 5 is fixedly connected with the barrel 2 and is used to provide rotational driving force through its rotating shaft when the filter cartridge is in the backwash mode;

[0039] The rotating shaft 6 is fixedly connected to the rotating shaft of the power assemb...

Example Embodiment

[0071] Example two

[0072] The present invention also provides a fluid filtering method for the shellfish trap of a nuclear power plant, which is suitable for the shellfish trap of the nuclear power plant in the first embodiment, such as Picture 11 As shown, the fluid filtration method includes:

[0073] Step S1: Judge whether the shellfish trap of the nuclear power plant is in the normal filtration mode or the filter cartridge backwash mode;

[0074] Step S2, if it is in the normal filtration mode, close the connection between the cylinder 2 and the backwash nozzle 7. The seawater enters the cylinder 2 from the fluid inlet end 1 and enters the inside of the filter cylinder 3, and the filtered seawater runs along the axis of the filter cylinder 3. The fluid flows out from the outlet end 4 of the nuclear power plant shellfish trap; preferably, the connection between the cylinder 2 and the backwash nozzle 7 can be closed by closing the valve between the cylinder 2 and the backwash n...

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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...

Claims

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Application Information

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IPC IPC(8): B01D29/15B01D29/68
CPCB01D29/15B01D29/682
Inventor 刘翠波李超联周鹏刘震顺欧国勇
Owner 中广核工程有限公司
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