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Tracing microsphere for pebble bed high-temperature gas-cooled reactor

A high-temperature gas-cooled reactor and tracer technology, applied in the direction of reducing greenhouse gases, reactors, climate sustainability, etc., can solve the problems of stable existence, difficult spherical fuel element species, etc., and achieve the effect of prolonging the mass transfer time

Active Publication Date: 2015-04-29
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, CoO is easily destroyed by H under heating conditions 2 , C or CO reduction, it is difficult to exist stably in spherical fuel elements

Method used

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  • Tracing microsphere for pebble bed high-temperature gas-cooled reactor
  • Tracing microsphere for pebble bed high-temperature gas-cooled reactor
  • Tracing microsphere for pebble bed high-temperature gas-cooled reactor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Put 26.73gZrO(NO 3 ) 2 ·2H 2 O, 2.20gY(NO 3 ) 3 , 10gCo(NO 3 ) 2 ·6H 2 O, 150mL of water was mixed and added to a 500mL beaker. After stirring to dissolve, the water bath was heated to 70°C, 15g of urea was added, the glue was boiled to 100mL, and a mixed solution of 37.5g of PVA and 37.5g of 4-HF was added, and the mixture was stirred to obtain a viscosity of 29.1mPa. s core glue; 26.73gZrO(NO 3 ) 2 ·2H 2 O, 2.20gY(NO 3 ) 3 , 150mL of water was mixed and added to a 500mL beaker. After stirring to dissolve, the water bath was heated to 70°C, 15g of urea was added, the glue was boiled to 100mL, and the mixed solution of 37.5g of PVA and 37.5g of 4-HF was added, and stirred to obtain a viscosity of 40mPa.s. Shell glue solution: prepare 500mL, 4mol / L NaOH solution, take 250mL NaOH solution and add 0.5g carbon powder, 5mL ethylene glycol mix uniformly to obtain gel curing agent. Add the three kinds of glues to the corresponding liquid storage bottles, select the 100-500μm con...

Embodiment 2

[0066] Put 26.73gZrO(NO 3 ) 2 ·2H 2 O, 2.20gY(NO 3 ) 3 , 20gCo(NO 3 ) 2 ·6H 2 O, 150mL of water was mixed and added to a 500mL beaker. After stirring to dissolve, the water bath was heated to 70°C, 15g of urea was added, the glue was boiled to 100mL, and a mixed solution of 37.5g of PVA and 37.5g of 4-HF was added, and the mixture was stirred to obtain a viscosity of 29.1mPa. s core glue; 26.73gZrO(NO 3 ) 2 ·2H 2 O, 2.20gY(NO 3 ) 3 , 150mL of water was mixed and added to a 500mL beaker. After stirring to dissolve, the water bath was heated to 70°C, 15g of urea was added, the glue was boiled to 100mL, and the mixed solution of 37.5g of PVA and 37.5g of 4-HF was added, and stirred to obtain a shell of 40mPa.s. Glue: prepare 500mL, 4mol / L NaOH solution, take 250mL NaOH solution, add 0.5g carbon powder, 5mL ethylene glycol and mix uniformly to obtain gel curing agent. Add the three kinds of glues to the corresponding liquid storage bottles, select the 100-500μm concentric nozzle ass...

Embodiment 3

[0068] Put 26.73gZrO(NO 3 ) 2 ·2H 2 O, 2.20gY(NO 3 ) 3 , 30gCo(NO 3 ) 2 ·6H 2 O, 150mL water was mixed and added to a 500mL beaker. After stirring to dissolve, the water bath was heated to 70°C, 15g of urea was added, the glue was boiled to 100mL, and the mixed solution of 37.5gPVA and 37.5g4-HF was added, and the mixture was stirred to obtain a viscosity of 29.4mPa. s core glue; 26.73gZrO(NO 3 ) 2 ·2H 2 O, 2.20gY(NO 3 ) 3 , 150mL of water was mixed and added to a 500mL beaker. After stirring to dissolve, the water bath was heated to 70°C, 15g of urea was added, the glue was boiled to 100mL, and the mixed solution of 37.5g of PVA and 37.5g of 4-HF was added, and stirred to obtain a viscosity of 40mPa.s. Shell glue solution: prepare 500mL, 4mol / L NaOH solution, take 250mL NaOH solution and add 0.5g carbon powder, 5mL ethylene glycol mix uniformly to obtain gel curing agent. Add the three kinds of glues to the corresponding liquid storage bottles, select the 100-500μm concentric n...

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PUM

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Abstract

The invention provides a tracing ceramic microsphere, a spherical fuel element and a high-temperature gas-cooled reactor system, wherein the tracing ceramic microsphere comprises a chip containing CoO, and a shell which is formed on the outer surface of the chip by using ZrO2. The tracing ceramic microsphere can be used for the spherical fuel element.

Description

Technical field [0001] The present invention relates to the field of nuclear industry. Specifically, the present invention relates to tracer ceramic microspheres, spherical fuel elements and high-temperature gas-cooled reactor systems. Background technique [0002] Energy, as one of the three pillars of modern social development, is the driving force for the development of human society. The greenhouse gas hazards caused by fossil energy are becoming more and more serious. At present, all countries are intensifying research on various new energy sources. Among the new energy sources that can be tapped, nuclear power is undoubtedly an energy source with mature technology and successful experience in large-scale industrial applications. The high-temperature gas-cooled reactor has outstanding advantages such as good inherent safety, high power generation efficiency, deep fuel consumption, and high thermal efficiency. It is currently one of the most important advanced reactor types ...

Claims

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Application Information

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IPC IPC(8): G21C3/16G21C3/07C04B35/48C04B35/01
CPCC04B35/01C04B35/48G21C3/07G21C3/16Y02E30/30
Inventor 马景陶刘裔兴刘荣正赵兴宇郝少昌邓长生刘兵
Owner TSINGHUA UNIV