Control rod driving device for nuclear reactor

Abstract

The invention discloses a control rod driving device for a nuclear reactor, the control rod driving device comprises a driving mechanism, a furling component and a control rod assembly, the control rod assembly is connected to the furling component, the driving mechanism controls the control rod assembly to move, and the control rod assembly can be bent to realize that the control rod assembly isaccommodated in the furling component. According to the control rod driving device for the nuclear reactor, the driving mechanism is used for controlling the rod lifting and falling movement of the control rod assembly and the process of accommodating the control rod assembly into the furling component, so that the required space in the vertical direction is reduced, and the control rod driving device can be better applied to operating environments such as a small reactor or a modular reactor. Meanwhile, the control rod driving device for the nuclear reactor is different from rigid control rods in all existing nuclear power stations and nuclear reaction devices through bending of the control rod assembly flexible part, and the successful implementation of the scheme can provide actual reference for better expanding the development of a new structure of the nuclear reactor.

Description

Technical field [0001] The invention relates to the field of nuclear reactor equipment, in particular to a control rod drive device for a nuclear reactor. Background technique [0002] The control rod drive device is a device installed on a nuclear reactor vessel, which is mainly composed of a drive mechanism and a control rod. Among them, the control rod has a "neutron poison" that can absorb neutrons. By inserting the control rod to absorb more neutrons, the rate of nuclear fission reaction is slowed down, and the increase of the control rod can reduce the rate of neutron absorption, thereby speeding up Nuclear reaction rate. Adjust the insertion depth of the control rod in the core to achieve the functions of adjusting the power of the nuclear reactor and emergency shutdown. [0003] The control rod components in the traditional control rod drive device for nuclear power are all rigid rod body structures. The control rod drive device uses gravity as the power source for the ro...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a control rod drive device for nuclear reactors in order to overcome the defect that the control rod drive device in the prior art requires too much vertical space and cannot be applied to small-scale reactors and modular reactors, etc.

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