Rod position measurement pressure housing with adapter and control rod hydraulic drive system

Abstract

The invention relates to the technical field of nuclear reactor engineering, and provides a rod position measurement pressure housing with an adapter and a control rod hydraulic drive system, wherein the rod position measurement pressure housing with an adapter includes: a flange assembly, an adapter , the sleeve assembly and the lead interface piece; the adapter is connected to the flange assembly and the sleeve assembly respectively, and the adapter is provided with a communication hole, so that the sleeve assembly is suitable for defining a closed cavity with the flange assembly; the rod position The measurement sensor is arranged in the closed cavity for measuring the position information of the control rod; the lead interface part is connected with the flange assembly and communicated with the closed cavity for leading out the coil of the rod position measurement sensor. Through the technical solution of the present application, the way of conducting the lead wire through the electrical penetration is canceled, and the stability and reliability of the detection signal of the rod position measurement sensor are improved. At the same time, it solves the processing technology problem of the long-dimension rod position measurement pressure-bearing shell, and meets the installation and use requirements of the long-dimension rod position measurement sensor.

Description

technical field [0001] The invention relates to the technical field of nuclear reactor engineering, in particular to a rod position measurement pressure-bearing shell with an adapter and a control rod hydraulic drive system. Background technique [0002] At present, in the nuclear reactor built-in control rod drive technology, the control rod drive mechanism is placed in the high temperature and high pressure environment in the reactor pressure vessel, and the rod position measurement sensor is used to measure the position of the control rod movement. Installed on the reactor pressure vessel, the safety and stability of the electrical penetrations are poor at the same time under high temperature and high pressure environment, which directly affects the stability and accuracy of the rod position measurement, and the pressure-bearing shell structure of the rod position measurement in the prior art It cannot meet the installation and use of long-sized rod position measurement s...

AI Technical Summary

Problems solved by technology

For this reason, the embodiment of the first aspect of the present invention proposes a rod position measurement pressure-bearing shell with an adapter, which adopts a built-in rod position measurement sensor, and arranges the rod position measurement sensor between the flange assembly and the sleeve assembly to define In the closed cavity of the rod position sensor, the coil of the rod position sensor is led out through the lead wire interface, so that the position of the control rod of the control rod drive mechanism can be detected without the use of electrical penetrating parts, and the reliability and reliability of the rod position measurement sensor are improved. Stability, at the same time, the adapter is used to connect the flange assembly and the sleeve assembly, and the rod position signal can be introduced from the communication hole of the adapter to the lead interface, which solves the situation that the existing technology cannot be installed and used for the long-size rod position measurement sensor , which improves the flexibility of product use

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