N-16 monitor data acquisition and processing platform

Abstract

The invention belongs to the technical field of nuclear power plant radiation monitoring, and particularly relates to an N-16 monitor data acquisition and processing platform. The N-16 monitor data acquisition and processing platform comprises an ARM embedded microprocessor which is connected with a single channel analysis module, an analog quantity output module, a switching quantity output module, a temperature signal module, an analog quantity input module, a communication module and a display alarm output module. The single channel analysis module is used for performing preforming on the gamma-ray signal provided by the detector and then providing the processed signal to the ARM embedded microprocessor to perform single channel analysis. The temperature signal module is used for providing the temperature signal to the ARM embedded microprocessor. The analog quantity input module is used for providing the nuclear power signal to the ARM embedded microprocessor. The ARM embedded microprocessor can calculate the leakage rate of the vapor generator U-shaped tube according to the single channel analysis result, the temperature signal and the nuclear power signal. The platform is simple in structure and high in reliability and can ensure immediate monitoring of the danger of leakage so as to enhance the safety of the vapor generator U-shaped tube.

Description

technical field [0001] The invention belongs to the technical field of nuclear power plant radiation monitoring, and in particular relates to a data collection and processing platform of an N-16 monitor. Background technique [0002] The N-16 monitor is the key equipment connecting the primary and secondary circuits in the pressurized water reactor nuclear power plant. Leakage of steam generator heat transfer tubes (U-shaped tubes) due to corrosion, fretting wear, wear and fatigue cracking is a frequent accident in PWR nuclear power plants, and it is one of the main reasons for the loss of capacity factor. The reliability of steam generators has a great impact on the safety and economic operation of nuclear power plants, and has become an important international issue. The N-16 monitor is used to continuously monitor the leakage rate of the primary circuit water to the secondary circuit side due to the damage of the U-shaped tube of the steam generator of the pressurized wa...

AI Technical Summary

Problems solved by technology

CNNC (Beijing) Nuclear Instrument Factory developed the N-16 radiation monitor for Pakistan's 300,000-kilowatt nuclear power plant. The data acquisition and processing platform is composed of two independent units, the measurement unit and the data processing unit, and uses the previous MCS-96 series 16-bit single-chip microcomputer in the 1990s, PL / M-96 advanced software design, such single-chip microcomputers are rare in the market at present, and the development language is also outdated

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