Cold trap for radiosodium on-line purifying

A radioactive sodium and cold trap technology, applied in climate sustainability, reactor fuel elements, reactors, etc., can solve problems such as limited cold trap processing capacity, and achieve the effect of improving heat utilization efficiency and large processing capacity

Active Publication Date: 2008-07-30
CHINA INSTITUTE OF ATOMIC ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0012] The object of the present invention is to solve the problem that the processing capacity of the cold trap used for sodium purification in the prior art is limited, and to provide a kind of processing capacity, wide application range, which can Cold trap for on-line purification of radioactive sodium

Method used

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  • Cold trap for radiosodium on-line purifying

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Embodiment Construction

[0017] The technical solutions provided by the present invention will be further elaborated below in conjunction with the accompanying drawings.

[0018] As shown in Figure 1, a kind of cold trap used for on-line purification of radioactive sodium comprises an outer cylinder body 5, a wire mesh 13 is arranged inside the outer cylinder body 5, and a sodium inlet 2 and a sodium outlet 3 are arranged on the top of the outer cylinder body 5 , a central return pipe 8 is set inside it, and the central return pipe 8 communicates with the sodium outlet 3 through the inner economizer coil 7 . The sodium inlet 2 communicates with the sodium inlet coil assembly 6 arranged on the upper part of the outer cylinder body 5, and the sodium inlet coil assembly 6 is arranged along the inner circumference of the outer cylinder body 5, with holes at the bottom. At the bottom of the outer cylinder 5, an inner cylinder 9 is placed, and a multilayer wire mesh 13 is placed inside it. The wire mesh 13...

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Abstract

The invention discloses a cold trap used for on-line purification of radiosodium, which comprises an outer cylinder body. A wire gauze arranged in the outer cylinder body. A sodium inlet and a sodium outlet are arranged on the upper part of the outer cylinder body. A central return conduit is arranged inside the outer cylinder body communicating with the sodium outlet through a heat saving unit coil. The technical proposal provided by the invention makes the best of the temperature difference between the inlet and the outlet for heat exchange, thus improving the efficiency of heat utilization. On the premise that a reactor is not stopped, liquid sodium of high temperature is cooled, separated out, filtered, heated and so on. The invention can process a great deal of sodium and is applicable for on-line purification of a great deal of sodium.

Description

technical field [0001] The invention belongs to the technical field of sodium purification equipment, and in particular relates to a cold trap for on-line purification of radioactive sodium. Background technique [0002] In the sodium-cooled fast breeder reactor, liquid metal sodium is used as the heat transfer agent in the first and second circuits, and the inert gas—argon is used as the protective gas for metal sodium. Although metal sodium has excellent heat transfer properties and does not need to increase the pressure to prevent boiling, therefore, most of the fast reactors in operation around the world have chosen liquid metal sodium as the coolant, but sodium is one of the alkali metals. Sodium-cooled fast reactors have very active chemical properties. How to purify radioactive sodium online to make it meet the quality required for safe operation of the reactor is one of the main problems faced by sodium-cooled fast reactors. [0003] Generally, the main sources of i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21C19/313
CPCY02E30/30
Inventor 周玉英董碧波刘宝泉李静
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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