Instrument usability analysis method for nuclear power plant

An analysis method and usable technology, applied in the field of nuclear power research, can solve the problems of low operability, low analysis cost, narrow analysis scope, etc., and achieve the effect of improving technical effect, wide analysis scope and high operability

Inactive Publication Date: 2015-03-11
NUCLEAR POWER INSTITUTE OF CHINA
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Problems solved by technology

[0008] The present invention provides a nuclear power plant instrument usability analysis method, which solves the problems of low analysis efficiency and accuracy, high cost, low operability, narrow analysis range and potential hidden dangers in the existing nuclear power plant instrument usability analysis method , and error-prone to lead to technical problems that endanger the safety of nuclear power plants, it realizes the efficient and accurate analysis of the availability of nuclear power plant instruments, with high operability, low analysis cost, wide analysis range and low hidden dangers, thereby improving Technical Effects on the Safety of Nuclear Power Plants

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  • Instrument usability analysis method for nuclear power plant

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Embodiment 1

[0034] In the first embodiment, a nuclear power plant instrument availability analysis method is provided, which is applied in severe accident conditions. When the identification curve envelope method cannot determine the instrument availability, please refer to figure 1 , the method includes:

[0035] Step 1. Establish the corresponding equivalent circuit according to the instrument and signal transmission characteristics.

[0036] Wherein, in the embodiment of the present application, the establishment of the corresponding equivalent circuit according to the instrument and signal transmission characteristics specifically includes:

[0037] First, according to the type of instrument, obtain the measurement principle and circuit structure of the corresponding instrument;

[0038] Then, according to the sensitive components and circuit structure in the instrument, determine the components and their arrangement in the equivalent circuit;

[0039] Then, according to the circuit s...

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Abstract

The invention discloses an instrument usability analysis method for a nuclear power plant. The method is used when the instrument usability cannot be judged through an identification curve enveloping method under a severe accident condition. The method comprises the following steps: establishing a corresponding equivalent circuit according to instrument characteristics; determining the influences of different environmental factors on the equivalent circuit; establishing a performance degradation circuit characteristic; introducing a noise circuit into the equivalent circuit to obtain an analog circuit; running a simulation program based on the analog circuit, and comparing output waveforms to realize efficient and accurate analysis of the instrument usability of the nuclear power plant. The method has the advantages of high operability, low analysis cost, wide analysis range, low hidden danger, and enhancement on the technical effect of the safety of the nuclear power plant.

Description

technical field [0001] The invention relates to the field of nuclear power research, in particular to a method for analyzing the availability of nuclear power plant instruments. Background technique [0002] The current nuclear power standard RCC-E 2005 "Rules for the Design and Construction of Nuclear Island Electronic Equipment in Pressurized Water Reactor Nuclear Power Plants" has added B7000, which provides the instrument identification procedures under severe accident conditions, but it is only applicable to new power plants. Nuclear power plants are not mandatory. [0003] After the Fukushima nuclear accident, the National Nuclear Safety Administration required safety inspections of nuclear power plants in operation and under construction across the country. Therefore, it is necessary to analyze the availability of the instruments required under severe accident conditions in each power plant. For the second-generation plus nuclear power plants with a large number of ...

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Application Information

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IPC IPC(8): G06F9/455
Inventor 余俊辉黄有骏李小芬陈智霍雨佳陈静赵阳何正熙朱加良何鹏朱毖微吴茜
Owner NUCLEAR POWER INSTITUTE OF CHINA
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