Intelligent measurement cabinet for rod position of control rod driving mechanism

Abstract

The invention discloses an intelligent measurement cabinet for the rod position of a control rod driving mechanism. The intelligent measurement cabinet comprises a cabinet body, wherein the interior of the cabinet body is divided into an upper layer, a middle layer and a lower layer; a plurality of stations are arranged at the upper layer and the middle layer; intelligent measurement modules usedfor monitoring the rod positions of single rods in a reactor are separately placed; the lower layer is a terminal plate used for arranging incoming and outgoing line interfaces; a touch display screenis arranged out of the front section of the cabinet body; and each station is used for setting a monitoring subunit. According to the invention, reasonable stations are arranged through a control cabinet, and intelligent detection modules used for controlling single rod position detection are respectively arranged on the stations, so independent operation of single-rod rod position detection control is achieved, joint integrated management of multiple stations can be achieved, and controlling and monitoring are facilitated; meanwhile, by adopting a combination of a dual-redundancy power circuit and a relay switch, the precision and stability of rod position detection are greatly improved, and the reliability of monitoring and measurement is greatly improved.

Description

technical field [0001] The invention relates to the technical field of nuclear power equipment, in particular to an intelligent rod position measuring cabinet for a control rod driving mechanism. Background technique [0002] At present, reactor control rods are generally composed of compensation rods, adjustment rods, safety rods, and passive rods. Each reactor is equipped with multiple control rods according to the capacity of the single reactor and the principle of the reactor, which is used to realize the reactivity adjustment control and safety of the control reactor. shutdown function. [0003] In order to realize accurate and safe control of the control rods, it is necessary to detect the discrete and continuous rod positions of each control rod in real time. The continuous position detection, discrete position detection, and position switch of each control rod are all driven by the corresponding detection device to realize the power supply excitation and the convers...

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Problems solved by technology

[0004] The number of control rods in a reactor varies from a few to dozens, and the signal of each control rod is composed of a continuous position excitation signal, a continuous position detection signal, and an end position state switch signal, resulting in the position detection of each reactor control rod. There are a lot of signals; and the space of the nuclear power plant reactor is limited, it is necessary to combine the existing detection technology to develop and design an integrated and reliable rod position intelligent measurement cabinet, which can perform intelligent and digital processing on various signals

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