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Reactor core

A core and shutdown rod technology, applied in the core. It can solve the problems of the control rod falling into the core and the low DNBR margin.

Pending Publication Date: 2019-04-05
HUALONG PRESSURIZED WATER REACTOR TECH CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the embodiments of the present invention is to provide a core, which solves the problem that in the existing core, two adjacent bundles of control rods in the control rod subgroup may fall into the core, resulting in a low DNBR margin. question

Method used

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Embodiment Construction

[0027] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0028] Such as Figure 1 to Figure 2 As shown, the embodiment of the present invention provides a core, including:

[0029] The first control rod group, the second control rod group, the first control rod power cabinet 1 and the second control rod power cabinet 2;

[0030] The first control rod subgroup includes at least two bundles of control rods 11, and the positions of the at least two bundles of control rods 11 in the core are in a diagonal relationship, and the at least two bundles of control rods 11 are respectively connected to the first A control rod power supply cabinet 1 is electrically connected;

[0031] The second control rod subgroup includes two bundles of control rods 21, and the positions of the two bundles of control rods 21 in the c...

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PUM

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Abstract

The invention provides a reactor core, comprising a first control rod group, a second control rod group, a first control rod power cabinet and a second control rod power cabinet. The first control rodgroup includes at least two control rod beams which form a diagonal relationship in the reactor core and are respectively in electric connection with the first control rod power cabinet; the second control rod group includes two control rod beams which form a diagonal relationship in the reactor core and are respectively in electric connection with the second power rod power cabinet. Thus, the control rod group including four control rod beams is divided into two control rod groups, the control rods of any control rod group of the two control rod groups are in diagonal relationship, and accordingly, the DNBR (Departure from Nucleate Boiling Ratio) value can be increased and further, the DNBR allowance can be increased.

Description

technical field [0001] The invention relates to the technical field of nuclear power, in particular to a reactor core. Background technique [0002] In the case of comprehensive energy shortage, nuclear power energy is of positive significance to solve the long-term energy shortage, so it is more and more important to vigorously develop the nuclear power industry. In nuclear power plant core design, the rod drop accident is the key factor affecting the safety margin of the nuclear power plant. The rod drop accident refers to any number of control rods in a certain control rod group or the entire control Rod group falling into the core, and the control rod group of the existing core is usually composed of four bundles of control rods, and this kind of control rod group composed of four bundles of control rods may occur when a rod falling accident occurs The operating condition in which two adjacent bundles of control rods in the control rod subgroup fall into the core, this ...

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Application Information

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IPC IPC(8): G21C3/326
CPCG21C3/326Y02E30/30
Inventor 马兹容陈军林建树曹建华
Owner HUALONG PRESSURIZED WATER REACTOR TECH CORP LTD
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