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Nuclear reactor core barrel vibration scale factor calculation method

A technology of nuclear reactor and core hanging basket, which is applied in the field of nuclear reactor core research

Active Publication Date: 2018-01-30
NUCLEAR POWER INSTITUTE OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0015] At present, no other unit in China has carried out the development of the core basket vibration scale factor calculation technology based on neutron signal analysis or the report of related patented technology

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  • Nuclear reactor core barrel vibration scale factor calculation method
  • Nuclear reactor core barrel vibration scale factor calculation method
  • Nuclear reactor core barrel vibration scale factor calculation method

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Embodiment Construction

[0036] The purpose of the present invention is to provide a method based on a probability theory algorithm that can calculate the scale factor of the vibration amplitude of the nuclear reactor basket changing with the value of the external neutron detector signal, and provide a calculation method for the quantitative monitoring of the vibration of the nuclear power plant core basket.

[0037] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, under the condition of not conflicting with each other, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0038] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present inve...

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Abstract

The invention discloses a nuclear reactor core barrel vibration scale factor calculation method. The method comprises the steps that a nuclear reactor core three-dimensional physical calculation modelis established; based on the established nuclear reactor core three-dimensional physical calculation model, first-order beam vibration and second-order shell vibration of a core barrel are simulated,and first-order beam vibration of a pressure vessel is simulated; and vibration scale factors of the core barrel and the pressure vessel under the vibration types are obtained comprehensively based on the nuclear reactor core three-dimensional physical calculation model and a simulated vibration process in combination with calculation. The calculation method is provided for quantitative monitoring of nuclear power plant core barrel vibration.

Description

technical field [0001] The invention relates to the field of nuclear reactor core research, in particular to a method for calculating the vibration scale factor of a nuclear reactor core hanging basket. Background technique [0002] When the reactor is running at full power in a hot state, the primary circuit is in a state of high temperature, high pressure and strong radiation. It is impossible to directly install the vibration sensor on the hanging basket, and it is difficult to directly monitor the vibration behavior of the core hanging basket. The neutron fluence rate at the external detector will change with the vibration of the core basket. Therefore, the vibration of the core basket can be monitored through the neutron noise of the external detector. The vibration behavior of the core basket can be restored by analyzing the neutron noise signal measured by the nuclear measurement system external detector. [0003] In order to describe the vibration of the core basket...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCY02T90/00
Inventor 汪文聪刘才学杨泰波杨永木
Owner NUCLEAR POWER INSTITUTE OF CHINA