Detector arrangement method for reactor core provided with 185 boxes of fuel assemblies, and reactor core thereof
A fuel assembly and detector technology, which is applied in the direction of moderator/core structure, reactor, nuclear reactor monitoring, etc., can solve the problems that affect the accuracy of detector detector measurement signals, affect the accuracy of real-time display results, etc., and achieve guaranteed accuracy. and speed, the effect of improving economy
Pending Publication Date: 2017-05-31
STATE POWER INVESTMENT CORP RES INST
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The radial arrangement scheme of fixed detectors in the reactor will directly affect the number of detectors, the accuracy of detector measurement signals, and ultimately affect the accuracy of real-time display results of reactor core online monitoring
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[0028] Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements. In addition, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a comprehensive understanding of the embodiments of the present disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in diagrammatic form to simplify the drawings.
[0029] The present invention proposes a fixed detector radial arrangement method for a nuclear reactor core loaded with 185 boxes of fuel assemblies, wherein the nuclear reactor core loaded with 185 boxes of fuel assemblies is mainly composed of nuclear fuel assemblies with an active area length of about 4 meters Composition, the 18...
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The present invention provides a fixed detector radial arrangement method for a nuclear reactor core for loading 185 boxes of fuel assemblies. The fixed detector radial arrangement method comprises: determining fuel assemblies provided with control bar groups as the fuel assemblies being not provided with fixed detectors; arranging the fixed detectors from the second row at interval rows; additionally arranging the fixed detectors at appropriate positions or locally adjusting the position of the fixed detector; practically measuring the state parameter value of the fuel assembly provided with the fixed detector; carrying out interpolation to obtain the state parameter values of all fuel assemblies in the nuclear reactor core; and determining the optimal scheme from the four series alternative schemes by using a statistical tool. The present invention further provides a nuclear reactor core comprising the fixed detectors and used for loading 185 boxes of the fuel assemblies. With the method and the reactor core, the calculation precision and the calculation speed of the reactor core online monitoring system are ensured while the economy of the reactor core online monitoring system is improved.
Description
technical field [0001] This application relates to the technical field of nuclear reactor measurement and control, in particular to a radial arrangement method for fixed detectors in a nuclear reactor core loaded with 185 cartridges of fuel assemblies and a nuclear reactor including fixed detectors loaded with 185 cartridges of fuel assemblies core. Background technique [0002] In order to enhance the operator's understanding of the inside of the reactor, in recent years, the reactor core online monitoring technology has been developed internationally to provide operators with real-time information on three-dimensional core power distribution. On-line monitoring of the three-dimensional power distribution of the reactor can ensure the safety of the reactor and improve the economic benefit of the reactor. [0003] During the operation of the reactor, the reactor core online monitoring system measures the axial and radial power distribution through fixed detectors arranged i...
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Login to View More IPC IPC(8): G21C5/02G21C17/108
CPCG21C5/02G21C17/108Y02E30/30
Inventor 孙业帅王常辉王苏吕俊宏陈义学
Owner STATE POWER INVESTMENT CORP RES INST