Limited space installation method of built-in control rod driving line

Abstract

The invention relates to the technical field of built-in control rod driving, and provides a limited space installation method of a built-in control rod driving line. According to the method, a springbox lower section is assembled on a driving mechanism component, then a buffer lock and a reset spring are mounted in the spring box lower section, then a spring box upper section is assembled on thespring box lower section to form a spring box component, and then a combined body of the spring box component and the driving mechanism component is mounted in a driving line guide cylinder. Then a buffer lock in the spring box part is locked with a rod position measuring rod of a control rod component , so that stable and reliable assembly among the control rod component , the driving wire guidecylinder, the spring box component and the driving mechanism component is realized. The assembling method is simple and convenient, the efficiency of loading and unloading work and maintenance work is improved, the safety and reliability of the limited space installation and operation process can be guaranteed, and then safe and reliable operation of the built-in control rod driving wire after assembling is guaranteed.

Description

technical field [0001] The invention relates to the technical field of built-in control rod driving, in particular to a method for installing a built-in control rod driving line in a limited space. Background technique [0002] In the built-in control rod driving technology, the driving mechanism needs to be placed in the high temperature, high pressure and irradiation environment in the reactor pressure vessel, and three hydraulic cylinders are used to lift, transfer and clamp in order to drive the transmission and clamp two sets of pins The claw mechanism moves to realize the functions of step-up, step-down and drop of the control rod. [0003] Based on the working principle of the driving mechanism and the characteristics of the small integrated water reactor control rod drive line, the built-in control rod drive line is required for safe and reliable assembly and disassembly operations on the integrated small water reactor. However, the loading and unloading method of t...

AI Technical Summary

Problems solved by technology

However, the loading and unloading method of the built-in control rod drive line in the prior art is inconvenient for installation and operation, which not only reduces the efficiency of loading and unloading work and maintenance work, but also makes it difficult to guarantee the safety and reliability of the installation operation process, which in turn affects the safety of the assembled device , reliable operation

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