Nuclear power station underwater foreign matter suction apparatus

A technology for suction devices and nuclear power plants, applied in the field of underwater foreign body suction devices for nuclear power plants, can solve the problems of small foreign bodies that are difficult to remove easily, and achieve the effects of simple structure, strong environmental adaptability, and convenient installation and replacement

Inactive Publication Date: 2014-09-17
STATE NUCLEAR POWER PLANT SERVICE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide an underwater foreign matter suction device for nuclear power plants, which is used to solve the problem in the prior art that the small foreign matter in the reactor pool is not easily and easily removed

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  • Nuclear power station underwater foreign matter suction apparatus
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Embodiment Construction

[0033] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0034] see Figure 1 to Figure 2 . It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. Limiting conditions, so there is no technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and purpose of the present invention, should still fall within the scope of the present invention. The disclosed technical content must be within the scope covered. At the sa...

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Abstract

The invention provides a nuclear power station underwater foreign matter suction apparatus. The apparatus comprises a water pump with a motor, a water inlet pipe, a water outlet pipe and a filter barrel connected with the inlet of the water pump and placed over the water pump, the filter barrel comprises a shell, a barrel-shaped filter screen placed in the shell and a top cover hinged to the shell and used for sealing the top of the shell, one end of the water inlet pipe stretches into the filter barrel, the other end of the water inlet pipe is connected with a foreign matter suction pipe, and the water outlet pipe is connected with the outlet of the water pump. The water pump is adopted to form a negative pressure in the filter barrel, so water in a reactor pool goes through the water inlet pipe, enters the filter barrel and is filtered, foreign matters enter the filter barrel with water flow, and above processes are repeated in order to suck the foreign matters in water. The suction apparatus has the advantages of simple structure, small size, easy placement in water by an operator, easy operation, realization of the rapid catching of the foreign matters in water without accurate positioning, and time saving.

Description

technical field [0001] The invention relates to an underwater foreign matter suction device for a nuclear power plant. Background technique [0002] During the operation of nuclear power plants, foreign matter is easily produced in the reactor vessel, such as damaged fuel assembly grid fragments, fallen bolts and nuts, oxide layers, and impurity deposits such as graphite carbon rod powder and metal powder generated during maintenance. These foreign objects must be cleaned up during overhaul, otherwise the water quality of the primary circuit will be reduced, and the fuel assembly, primary circuit equipment, and even the pressure boundary of the primary circuit will be damaged. [0003] Existing foreign body salvage devices can be divided into two types: underwater filtering devices and underwater manipulator grabbing devices. The former is mainly used for water filtration, and can also absorb small and light foreign matter, but the device itself is large in size and weight,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21C19/32
CPCY02E30/30
Inventor 闫国华李玮俞照辉叶琛文忠尹绪雨
Owner STATE NUCLEAR POWER PLANT SERVICE
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