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Solid Spallation Targets for Accelerator-Driven Subcritical Nuclear Energy Systems

An accelerator-driven, subcritical technology, applied in the field of nuclear energy, can solve problems such as radioactive consequences and polonium volatilization, and achieve the effects of high operating power, easy processing and manufacturing, and flexible overall design

Active Publication Date: 2016-12-28
INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For lead-bismuth eutectic alloys, the prominent problem is radioactive products. Since the polonium element produced after the activation of metal bismuth is a highly toxic radionuclide, and polonium is volatile, polonium will be in the accident condition. Rapid volatilization from lead-bismuth eutectic alloy at high temperature, causing serious radioactive consequences

Method used

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  • Solid Spallation Targets for Accelerator-Driven Subcritical Nuclear Energy Systems
  • Solid Spallation Targets for Accelerator-Driven Subcritical Nuclear Energy Systems
  • Solid Spallation Targets for Accelerator-Driven Subcritical Nuclear Energy Systems

Examples

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Effect test

Embodiment 1

[0019] Example 1: see figure 1 , a solid spallation target for an accelerator-driven subcritical nuclear energy system, including a target body 3 at the end of the inner cavity of a proton beam flow channel 1, and 12 rows of cooling through holes 6 on the target body 3, As a flow channel for cooling helium, the 12 rows of cooling through holes 6 provided on the target body 3 are 6 rows of round holes in each of the two horizontal directions, and one end is provided with a helium inlet header 4. The gas inlet header 4 is connected to the helium inlet header connecting pipe 9; the other end is provided with a cooling helium outlet header 5, and the helium outlet header 5 is connected to the helium outlet header connecting pipe 2.

[0020] The helium inlet header 4 and the helium outlet header 5 are provided with connection joints 2 on the top of the box body, and are provided with 6 rows of cooling through holes 6 corresponding to the target body 6 on the end surface connected t...

Embodiment 2

[0023] Example 2: see figure 1 , the solid spallation target used in the accelerator-driven subcritical nuclear energy system, the 13 rows of cooling through holes 6 provided on the target body 3 are 6 rows and 7 rows of circles in the two horizontal directions The holes are arranged crosswise, and are respectively connected to the helium inlet header 4 at one end and the cooling helium outlet header 5 at the other end. All the other structures are the same as in Example 1.

[0024] The rectangular parallelepiped target 3 runs through the two surfaces in two horizontal directions and has multiple rows of round holes 6 and 7, which are used as flow channels for cooling helium; cooling helium inlet header 4, cooling helium outlet header 5, proton The beam flow channel 1 is welded on the cuboid target part 3; the cooling helium gas inlet header 4 and the cooling helium gas outlet header 5 are all provided with round holes 8 on the plane. During welding, the round holes 8 and the...

Embodiment 3

[0025] Embodiment 3: see figure 1 , the solid spallation target used in the accelerator-driven subcritical nuclear energy system, the target body 3 is a cube. The 8 rows of cooling through-holes 6 provided on the target body 3 are 4 rows of circular holes in two horizontal directions, respectively connected to the helium gas inlet header 4 at one end, and connected to the cooling helium gas outlet at the other end. Header 5. All the other structures are the same as in Example 1.

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Abstract

The invention relates to a solid spallation target structure for ADS (Accelerator Driven Sub-critical System), which belongs to the technical field of nuclear energy. A solid spallation target for the ADS is mainly characterized in that a target body is arranged at the end head of an inner cavity of a proton beam passage, the target body is provided with multiple rows of cooling through holes, one ends of the multiple rows of the cooling through holes are provided with a helium inlet connecting box, the helium inlet connecting box is connected with a helium inlet connecting box connecting pipe, the other ends of the multiple rows of the cooling through holes are provided with a cooled helium outlet connecting box, and a helium outlet connecting box is connected with a helium outlet connecting box connecting pipe. The solid spallation target disclosed by the invention has the advantages that the solid spallation target structure can be easily processed and manufactured, the welding can be easier as the same material is adopted, and the requirements of the ADS system on other functions of the spallation target can be met by the solid spallation target structure.

Description

technical field [0001] The invention relates to a solid spallation target structure used in an accelerator-driven subcritical nuclear energy system, and belongs to the technical field of nuclear energy. Background technique [0002] ADS is the abbreviation of Accelerator Driven Sub-critical Clean Nuclear Energy System (Accelerator Driven Sub-critical System), which is a spallation reaction between high-energy protons accelerated by an accelerator and heavy target nuclei (such as lead or tungsten, etc.), and a spallation reaction caused by a proton Dozens of neutrons can be generated, and the neutrons produced by the spallation reaction are used as the neutron source to drive the subcritical cladding system, so that the subcritical cladding system can maintain a chain reaction in order to obtain energy and use excess neutrons to multiply nuclear materials and transmutation of nuclear waste. [0003] The spallation target is an important part of the ADS system. After the high...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05H6/00
Inventor 顾龙盛选禹李金阳王大伟范庆秦长平刘璐
Owner INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
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