Following cathode device with distance between following cathode device and active anode kept unchanged and application of following cathode device

An active anode technology that remains unchanged, applied in the field of electrochemical electrolysis, can solve the problem of loss of effective area of ​​the cathode plate, and achieve the effects of no loss of effective area, easy installation, and low cost

Active Publication Date: 2015-11-11
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, each cathode plate will block each other when moving, and the conventional method of interleav...

Method used

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  • Following cathode device with distance between following cathode device and active anode kept unchanged and application of following cathode device
  • Following cathode device with distance between following cathode device and active anode kept unchanged and application of following cathode device

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Embodiment 1

[0018] This embodiment is a follower cathode device of the present invention that keeps the constant distance from the active anode, and is used in the electrolysis process containing a spherical active anode under radioactive conditions. The handles of the 4 special-shaped plates are clamped, and the 4 special-shaped plates are arranged according to the four sides of the circumscribed square of the active anode of the spherical fuel element to realize mechanical installation; the wire connected to the negative pole of the electrolyzer power supply passes through the 4 special-shaped plates in the form of screws and nuts The through hole on the handle is clamped to realize electrical connection; during electrolysis, the mechanical device of the electrolytic cell drives 4 special-shaped plates to move along the diagonal of the square to the center of the square, and the moving speed is equal to the shrinking speed of the active anode times.

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Abstract

The invention belongs to the technical field of electrochemical electrolysis, and particularly relates to a following cathode device with the distance between the following cathode device and an active anode kept unchanged and application of the following cathode device. The cathode device comprises four special-shaped flat plates. The special-shaped flat plates are arranged according to the four edges of the external square of the active anode. When the active anode is shrunk, the special-shaped flat plates move along the diagonal lines of the square towards center of the square. The moving speeds of the four special-shaped flat plates are the same and are square root of 2 times of the shrinkage speed of the active anode. The following cathode device can be used as a cathode when high-temperature reactor fuel element matrix graphite is disassembled through an electrochemical intercalation method. The following cathode device is simple in structure, the effective area of a cathode pole plate is large, the distance between the cathode and the anode is kept unchanged in the whole electrolysis process, and resistance in the electrolysis process is effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of electrochemical electrolysis, and in particular relates to a follower cathode device with a constant distance from an active anode and its application. Background technique [0002] The reprocessing of spent fuel in high-temperature gas-cooled reactors is very important, and special disintegration studies are required for the particularity of the structure of the spherical fuel elements used in it. Among various disintegration methods, the electrochemical intercalation method has mild conditions and does not release radionuclides, so it is a more suitable method. [0003] In the electrochemical intercalation method, the spherical fuel element is continuously reduced as the active anode. If the cathode adopts a conventional fixed form, the distance between the cathode and the anode will continue to increase, resulting in the continuous increase of Joule heat in the electrolysis process, which not only redu...

Claims

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Application Information

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IPC IPC(8): C25C7/02C25D17/12
Inventor 王树威文明芬陈靖王建晨
Owner TSINGHUA UNIV
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