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Underwater foreign matter fishing device

A salvage device and technology for foreign objects, which are applied in the fields of cleaning methods and utensils, radioactive purification, chemical instruments and methods, etc., can solve the problems of high use cost, time-consuming, and complicated work of vacuuming foreign objects underwater.

Active Publication Date: 2014-02-05
RES INST OF NUCLEAR POWER OPERATION +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a light-weight underwater foreign body salvage device, which can effectively solve the problems of complicated, time-consuming, radiation risks, and high use costs in domestic nuclear power plants' current underwater foreign body vacuuming work.

Method used

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Embodiment Construction

[0014] The light-weight underwater foreign body fishing device of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0015] Such as figure 1 As shown, a kind of underwater foreign matter fishing device described in the present invention comprises a support frame 1, a submersible motor 3 and a submersible pump 4 arranged in the support frame 1, one end of the submersible pump 4 is connected with the submersible motor 3, and the other end of the submersible pump 4 is One end is connected with collecting pipe 5. The submersible pump 4 is a two-way submersible pump, which can perform positive and negative rotation and multi-speed variable speed operation. The submersible motor 3 can make the submersible pump 4 rotate forward or reverse, and form a two-way water pressure difference inside and outside the collecting pipe 5 port. It absorbs foreign matter during operation, and discharges foreign m...

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Abstract

The invention provides an underwater foreign matter fishing device. The device comprises a supporting frame, and a submersible motor and a submersible pump which are arranged in the supporting frame, wherein one end of the submersible pump is connected with the submersible motor, and the other end of the submersible pump is connected with a collection pipe; the collection pipe comprises a connecting pipe and a collection port which are connected; a filter screen is arranged in the connecting pipe; the collection port is a straight collection port or a bent collection port. According to the device, the submersible pump, an underwater vacuum dust collection technology and a purification technology are combined to be applied to removing underwater foreign matters of nuclear power facilities, and both fishing and collection of the foreign matters are finished underwater. The device is suitable for removing the foreign matters (diameter of 0.1-40 mm and weight of less than or equal to 1 kg) in (or on) reactor cores and reactor core pools, spent fuel pools and fuel components.

Description

technical field [0001] The invention relates to a portable underwater foreign matter salvage device for nuclear devices, which is suitable for removing foreign matter (diameter 0.1mm-40mm, weight ≤ 1kg) in (or on) the core and core pool, spent fuel pool, and fuel assemblies clear. Background technique [0002] During the operation of nuclear power plants, foreign matter is often deposited in reactor vessels and other parts. These foreign objects may damage the fuel cladding and system components and should be removed. When using the conventional underwater dust collection device of domestic nuclear power plants to remove these foreign objects, due to the large volume and weight of the equipment, it is necessary to lift, locate, install, recover and disassemble the underwater dust collection device. This process will take several hours. During the overhaul period, the ring crane is very busy, and the occupation of the ring crane will often occupy the critical path of the o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B08B5/04
CPCB08B15/00G21C1/00G21F9/00
Inventor 胡卉桦卢冰张斌胡鑫
Owner RES INST OF NUCLEAR POWER OPERATION
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