Device and method for abnormal diagnosis of dissolved oxygen index in condensate system of nuclear power plant

Abstract

The invention discloses a diagnosing device and a diagnosing method for the abnormality of a dissolved oxygen index of a condensate water system in a nuclear power plant, and relates to the field of chemical index abnormality of a second loop of nuclear power plants. The device comprises a dissolved oxygen meter, a sodium analyzer, four cation conductivity meters, an analysis indicating module, a fault recording module, a first data acquiring module connected with the dissolved oxygen meter, a second data acquiring module connected with the sodium analyzer and a third data acquiring module connected with the four cation conductivity meters; the analysis indicating module is separately connected with the first data acquiring module, the second data acquiring module, the third data acquiring module and the fault recording module; the dissolved oxygen meter and the sodium analyzer are both positioned on a condensate water pump outlet mother pipe; the cation conductivity meters are all positioned on a condenser pipeline; each cation conductivity meter corresponds to one condenser leaking point. According to the diagnosing device and the diagnosing method disclosed by the invention, the efficiency and the accuracy of diagnosing the dissolved oxygen index of the condensate water system in the nuclear power plant can be effectively improved.

Description

technical field [0001] The invention relates to the field of abnormal diagnosis of chemical indicators of a secondary circuit of a nuclear power plant, in particular to a device and method for diagnosing abnormal dissolved oxygen indicators of a condensate water system of a nuclear power plant. Background technique [0002] At present, when the dissolved oxygen index of the condensate system of a nuclear power plant deviates from the technical specification, it usually relies on the experience of chemical professionals and handles it according to the relevant operating procedures of the power plant. The country is currently vigorously developing nuclear power, and there are more and more nuclear power plants. However, in terms of diagnostic technology for the secondary circuit indicators of nuclear power plants, there is a relative shortage of chemical staff with rich experience; However, the actual conditional factors are often inconsistent with the preconditions required b...

AI Technical Summary

Problems solved by technology

The country is currently vigorously developing nuclear power, and there are more and more nuclear power plants. However, in terms of diagnostic technology for the secondary circuit indicators of nuclear power plants, there is a relative shortage of chemical staff with rich experience; However, the actual conditional factors are often inconsistent with the preconditions required by the operating procedures, which complicates the relevant treatment, resulting in low diagnostic efficiency and accuracy.

Images