Reactor core structure and start-stop control manner thereof

A core structure and control method technology, applied in the field of nuclear power, can solve the problems of neutron flux distribution inhomogeneity, non-applicability, and large processing difficulty, so as to increase diversity, selectivity, and easy processing , a wide range of effects

Pending Publication Date: 2018-01-12
CHINA NUCLEAR POWER TECH RES INST CO LTD +2
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Problems solved by technology

[0007] The control rod assembly plays an irreplaceable role in the control of the reactivity of the large reactor core and the process of starting and stopping the reactor, but for miniaturized reactors, and even smaller micro-r

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  • Reactor core structure and start-stop control manner thereof
  • Reactor core structure and start-stop control manner thereof

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Embodiment Construction

[0034] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

[0035] Such as figure 1 , figure 2 As shown, the reactor core structure in a preferred embodiment of the present invention includes a fixed fuel assembly 1 , a movable fuel assembly 2 , a driving mechanism 3 and a reset mechanism 4 .

[0036] The fixed fuel assembly 1 includes several first fuel rods 11 arranged side by side, and the several first fuel rods 11 are arranged to form guide holes 12 . Preferably, the middle part of the arranged first fuel rods 11 is vacant to form a guide hole 12 , and in other embodiments, the guide hole 12 can also be arranged off-center. A guide cylinder 6 for guiding the moving fuel assembly 2 is provided in the guide hole 12 , and the mobile fuel assembly 2 can be axially inserted i...

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Abstract

The invention relates to a reactor core structure and a control manner of a start-stop reactor thereof. The reactor core structure comprises a fixed fuel component, a mobile fuel component, and a drive mechanism, wherein the fixed fuel component comprises a plurality of first fuel rods that are arranged side by side, the plurality of first fuel rods form a guide hole after being arranged, and a guide cylinder for guiding the mobile fuel component is arranged in the guide hole; the mobile fuel component comprises a plurality of second fuel rods that are arranged side by side, the mobile fuel component can move between a first position and a second position in an axial direction so as to match with the guide cylinder, when the mobile fuel component is at the first position, the mobile fuel component is inserted into the guide hole, when the mobile fuel component is at the second position, the mobile fuel component leaves the guide hole; and the drive mechanism is matched with the mobilefuel component and provides the mobile fuel component with a driving force that enables the mobile fuel component to move toward the first position, and the mobile fuel component also can move to reset at the second position, so that a small reactor core can be conveniently controlled to start and stop.

Description

technical field [0001] The invention relates to the field of nuclear power, more specifically, to a reactor core structure and a control method for starting and stopping the reactor. Background technique [0002] As a clean, efficient and safe green energy, nuclear energy has received great attention from modern society. The development of safe nuclear energy has become an important strategy for countries to solve energy shortages, environmental degradation and climate warming. From a global perspective, the application fields of nuclear energy continue to expand, and the size of nuclear reactors that provide power tends to be miniaturized, from large-scale commercial pressurized water reactors for power stations, to marine nuclear power reactors for ship power, and to islands. Offshore floating reactors are shrinking in size, and the emergence of nuclear reactors of various sizes has also made nuclear energy applications more flexible and diverse. [0003] For common pres...

Claims

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Application Information

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IPC IPC(8): G21C1/30G21C7/30
CPCY02E30/30
Inventor 卢冬华苏前华彭帆王阔马小雅孟祥飞崔军邢军
Owner CHINA NUCLEAR POWER TECH RES INST CO LTD
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