Fast pulse rod emitter for uranium-hydrogen-zirconium reactor

Abstract

The present invention relates to the control of reactor and is especially fast pulse rod emitter of uranium-hydrogen-zirconium reactor. There are impact cylinder with piston inside it, piston rod connected to the piston, pulse rod fixed to the lower end of the piston rod; energy accumulating cylinder outside the impact cylinder and connected to the impact cylinder via its intake hole; buffering cylinder below the impact cylinder and with through hole in the lower part for the pulse rod to run, degasing hole on the outer wall, buffering piston, buffering spring and electromagnecitc armature. Two pressurizing in the piston rod communicates the energy accumulating cylinder and the buffering cylinder before emitting. The length of both impact cylinder and the buffering cylinder is greater than the height of the reactor core.

Description

technical field [0001] The invention belongs to the field of reactor control, in particular to a fast pulse rod launching device for a uranium hydrogen zirconium reactor. Background technique [0002] The uranium hydrogen-zirconium reactor is an advanced research reactor that can achieve prompt supercriticality and has inherent safety performance. Its pulse emission device is the key equipment for introducing large reactivity and emitting strong neutron pulses. In July 1990, my country successfully developed the PRC-1 type uranium hydrogen zirconium reactor and pulse emission device. At present, there are more than 60 uranium hydrogen zirconium pulse reactors in operation in the world. Except for two developed by China, the rest are developed by the United States. However, most of its pulse emission devices have the following disadvantages: (1) the emission speed is low, and the peak power of the stack cannot be greatly improved; (2) the buffer is arrang...

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Problems solved by technology

However, most of its pulse emission devices have the following disadvantages: (1) The emission speed is low, and the peak power of the stack cannot be greatly improved; (2) The buffer is arranged above the cylinder, and the push-type buffer is adopted, and the piston rod is easily deformed. , failure occurs; (3) The failure rate of the device is high and the working life is low

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