Critical experiment device and method for magnetically arranging neutron poison rods in contactless manner

A critical experiment and poison rod technology, which is applied in the field of experiments of fissionable materials outside the reactor, can solve the problems of inability to carry out critical experiments without neutron poison rod casing, occupation, and multi-space, so as to solve the problem of radioactive aerosol sealing. Effect

Pending Publication Date: 2020-09-01
CHINA NUCLEAR POWER ENG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method has high stability, but requires more driving devices, and the pre-set neutron poison rod casing takes up a lot of space

Method used

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  • Critical experiment device and method for magnetically arranging neutron poison rods in contactless manner
  • Critical experiment device and method for magnetically arranging neutron poison rods in contactless manner
  • Critical experiment device and method for magnetically arranging neutron poison rods in contactless manner

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Embodiment Construction

[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0029] The present invention provides a magnetic suction non-contact neutron poison bar critical experimental device, such as figure 1 , figure 2 As shown, it includes the main container 1 of the critical experiment device, the control module of the hanging basket, the hanging basket 6, the distributed top suction magnet 5 and several neutron poison rods 7 required for carrying out the experiment.

[0030] The present invention is based on the magnetic attraction control method, so except for the parts that need to be controlled, the main body materials of the critical experimental device main bo...

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Abstract

The invention relates to a critical experiment device and method for magnetically arranging neutron poison rods in a contactless manner. According to the method, the number and the arrangement mode ofneutron poison rods are selected through distributed top suction magnets on a top cover of a main body container, a hanging basket control module on the side surface of the main body container drivesa hanging basket to move along a rail, the selected neutron poison rod is vertically placed in the lower space of the device, after a critical experiment with the neutron poison rod is carried out, the hanging basket in the device is controlled to return to the upper space of the device, and the neutron poison rod is adsorbed and fixed in the upper space of the device again by the distributed topsuction magnet of the top cover of the device. According to the scheme, under the conditions of complete sealing and no contact, the arrangement scheme of neutron poison rods with rods, without rods,with different numbers, with different materials, with different arrangements and with different heights is realized, radioactive substances are prevented from leaking out of the critical experimentdevice to cause aerosol pollution and other radioactive hazards, and the critical experiment method is an advanced plutonium-containing fissile material solution system critical experiment technologywith engineering feasibility.

Description

technical field [0001] The invention relates to an experimental technique for fissile materials outside a reactor, which is suitable for critical experiments of plutonium-containing fissile material solution systems, and in particular relates to a magnetic suction type critical experimental device and method for arranging neutron poison rods without contact. Background technique [0002] Nuclear criticality safety is the lifeline of the nuclear industry. my country has adopted a closed fuel cycle method of reprocessing spent fuel, that is, processing spent fuel elements unloaded from nuclear power plants, separating and recycling unburned uranium and newly generated plutonium, and processing radioactive waste at the same time to meet Disposal requirements, and the reprocessing of recovered uranium and plutonium can be remade into fuel elements and returned to nuclear power plants for use. [0003] During the reprocessing of spent fuel, fissile materials mainly exist in the f...

Claims

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Application Information

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IPC IPC(8): G21C1/30
CPCG21C1/303Y02E30/30
Inventor 邵增易璇胡小利杨海峰刘国明于淼
Owner CHINA NUCLEAR POWER ENG CO LTD
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