Rod position processing device for control rods in reactor

Abstract

The invention discloses a rod position processing device for control rods in a reactor, which is used in a pressurized water reactor nuclear power plant. The rod position processing device comprises remote interfaces, controllers and a power module, wherein the remote interfaces are connected with a rod position detection device; the rod position detection device is used for detecting the rod positions of all the control rods in the reactor to output corresponding grey code signals; the remote interfaces simultaneously acquire the grey code signals of all the control rods in a reactor core; the controllers are connected with the remote interfaces and perform measured rod position calculation, rod position out-of-step monitoring and system status monitoring according to the grey code signals; the power module supplies power to the remote interfaces and the controllers. Compared with the prior art, the rod position processing device has the benefit that the remote interfaces can simultaneously acquire the grey code signals of all the control rods in the reactor core, so that the acquisition cycle of rod position information is greatly reduced, and the product performance is improved.

Description

technical field [0001] The invention relates to the field of nuclear power, in particular to the position treatment of reactor control rods in a million-kilowatt pressurized water reactor nuclear power plant. Background technique [0002] During the start-up, power conversion and shutdown of the nuclear power plant, the reactivity of the reactor is controlled by controlling the lifting, insertion and maintenance of the control rods, so as to ensure that the reactor is always working in a controlled state. According to the different positions and functions of the control rods in the core, the control rods are usually divided into groups (such as temperature rod groups, power rod groups, shutdown rod groups, etc.), and the four control rods in the same subgroup are symmetrical in the core Arrangement (the control rods in the center of the core are separately a subgroup), and they are linked during operation. [0003] The lifting, inserting and holding motions of the control r...

AI Technical Summary

Problems solved by technology

The logic cabinet needs to be connected to another engineering machine, which is used for human-computer interaction, rod control status monitoring, rod control fault monitoring, and data recording. Maintenance personnel need to operate and monitor the entire system separately on the two engineering machines, which is inconvenient to use

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