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An underwater foreign matter suction device for a nuclear power plant

A suction device and nuclear power plant technology, applied in nuclear power generation, nuclear engineering, greenhouse gas reduction, etc., can solve the problems of low suction efficiency, difficult positioning and grasping, complex underwater environment of reactor pools, etc., to achieve convenient collection and collection high efficiency effect

Active Publication Date: 2022-05-06
连云港金辰实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing foreign matter salvage in water is generally carried out by means of mechanical grasping and other methods, while the powder impurities at the bottom of the water are collected by means of pumping and filtering. It is necessary to accurately locate the foreign matter first, and because the underwater environment of the reactor pool is very complex, it is difficult to locate and grasp it. When pumping water to extract the powder impurities at the bottom, the sediment at the bottom is generally condensed into blocks, so it is difficult to extract them. Large sediments are sucked, which makes the suction efficiency low. Therefore, we propose an underwater foreign matter suction device for nuclear power plants

Method used

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  • An underwater foreign matter suction device for a nuclear power plant
  • An underwater foreign matter suction device for a nuclear power plant
  • An underwater foreign matter suction device for a nuclear power plant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] see Figure 1-Figure 7 , an underwater foreign matter suction device for a nuclear power plant in the figure, including a suction tube 1, a plurality of connecting plates 2 are fixed on the inner bottom and inner wall of the suction tube 1, and are fixed with a plurality of connecting plates 2 for underwater dust suction. The suction mechanism 3 used to disperse the underwater sediment is installed on the outside of the suction cylinder 1, wherein, in order to facilitate the holding and placement of the suction cylinder 1, a connection is fixed on the outside of the suction cylinder 1 Rod 45.

[0029] Wherein, the suction mechanism 3 includes a separation sleeve 5 fixed to a plurality of connecting plates 2, a liquid inlet 6 is opened at the bottom of the separation sleeve 5, and a closing plate 7 is rotatably installed in the liquid inlet 6, and the separation sleeve 5 A support plate 8 is fixed on the top, and a filter assembly 9 is installed on the support plate 8. ...

Embodiment 2

[0036] see Figure 8 and Figure 9 , this embodiment is further described for Example 1. The suction mechanism 3 in the illustration includes a spacer 5 fixed to a plurality of connecting plates 2. The bottom of the spacer 5 has a liquid inlet 6, and the liquid inlet 6 A closing plate 7 is installed in the inner rotation, a support plate 8 is fixed on the top of the separation sleeve 5, and a filter assembly 9 is installed on the support plate 8, a driving assembly 10 for absorbing liquid is installed on the top of the suction cylinder 1, and the suction cylinder 1 The bottom threaded socket is provided with a sealing sleeve 11 connected with the spacer sleeve 5;

[0037] Wherein, the filter assembly 9 includes a prismatic column 12 fixed on the support plate 8, the bottom plate 13 is set on the outside of the prismatic column 12, and the limit column 14 is fixed on the top of the prismatic column 12, and the outer side of the prismatic column 12 is covered There is an extru...

Embodiment 3

[0040] see Figure 8 , this embodiment is further described for other embodiments, the filter assembly 9 in the illustration includes a prismatic column 12 fixed on the support plate 8, the outer side of the prismatic column 12 is covered with a bottom plate 13, and the top of the prismatic column 12 is fixed Limiting column 14, the outer side of the prismatic column 12 is covered with an extrusion spring 15 against the bottom plate 13 and the support plate 8, a connecting sleeve 16 is slidably inserted in the suction tube 1, and the connection sleeve 16 and the bottom plate 13 A filter screen 17 is fixed between them, and a support frame 18 is fixed on the inner side of the top of the connecting sleeve 16, and a prismatic sleeve 19 compatible with the limit column 14 is slidably inserted in the support frame 18, and the bottom of the prismatic sleeve 19 is Two limit plates 20 are fixed at the ends, and the top of the prismatic sleeve 19 is connected with the drive assembly 10...

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Abstract

The invention discloses an underwater foreign matter suction device for a nuclear power plant, which includes a suction cylinder, a plurality of connection plates are fixed on the bottom inner wall of the suction cylinder, and a suction mechanism for underwater dust suction is fixed through the plurality of connection plates. The dispersing mechanism for dispersing the underwater sediment is installed outside the suction cylinder. The designed dispersing mechanism of the present invention can effectively disperse the sediment in the bottom of the water, and cooperate with the function of the suction mechanism to realize Break up the sediment first and then collect it, which makes the collection more efficient and more convenient.

Description

technical field [0001] The invention relates to the technical field of underwater foreign matter absorption for nuclear power plants, in particular to an underwater foreign matter absorption device for nuclear power plants. Background technique [0002] During the operation of the nuclear power plant, foreign matter is easily produced in the reactor vessel, such as damaged fuel assembly grid fragments, shed bolts and nuts, oxide layers, and impurity deposits such as graphite carbon rod powder and metal powder generated during maintenance. It must be cleaned up during overhaul, otherwise, the water quality of the primary circuit will decrease, and the fuel assembly, primary circuit equipment, and even the pressure side of the primary circuit may be damaged. [0003] The existing foreign matter salvage in water is generally carried out by means of mechanical grasping and other methods, while the powder impurities at the bottom of the water are collected by means of pumping and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21C19/32
CPCG21C19/32Y02E30/30
Inventor 庄辉何少华张海维孙君徐康李波吴金堤付双伟刘璐玮陈亮石岩孟凡超邓明辉李维国
Owner 连云港金辰实业有限公司