Offshore small reactor serious accident instrument control system and control method thereof
A serious accident and I&C system technology, which is applied to the I&C system and its control field for serious accidents of offshore small reactors, can solve the problem of large number of I&C system cabinets, large cost and occupied space of I&C equipment, and lack of specific solutions for serious accidents and I&C systems. Protect the system and other issues to achieve the effect of reducing the amount of usage, reducing the space used, and reducing economic costs
Active Publication Date: 2017-01-11
CHINA NUCLEAR POWER TECH RES INST CO LTD +2
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[0003] Existing products and methods describe the relevant methods for the design of instrumentation and control systems for severe accidents in nuclear power plants. Only the acquisition signals required for severe accidents are proposed, and no monitoring parameters are proposed for the monitoring signals shared by severe accidents, protection systems, and post-accident monitoring systems. Optimize the input and display methods; the existing products and methods realize the functions of the serious accident instrument control system as an independent system, so it has unique data processing cabinets, logic processing cabinets and modules such as maintenance and testing, making the instrument control The number of system cabinets is large, and the cost and space occupied by instrumentation and control equipment are relatively large
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[0031] The following descriptions of various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the present invention can be implemented.
[0032] Please refer to figure 1 As shown, the embodiment of the present invention provides a control method of the instrument and control system for severe accidents of offshore small reactors, including:
[0033] Step S1, comparing the severe accident monitoring variable signal with the monitoring variables of the protection system and the post-accident monitoring system to obtain the common monitoring variables of the severe accident monitoring and the protection system monitoring, and the common monitoring variables of the severe accident monitoring and the post-accident monitoring system monitoring;
[0034] Step S2, using a wide-range, safety-level shared sensor for the shared monitoring variable;
[0035] Step S3, comparing the measurement value of the shared sensor with the setting range of t...
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The invention provides an offshore small reactor serious accident instrument control system and a control method thereof. The control method comprises the steps of S1, comparing serious accident monitoring variable signals with monitoring variables of a protection system and a post-accident monitoring system, and acquiring monitoring variables shared by serious accident monitoring and monitoring of the protection system and monitoring variables shared by serious accident monitoring and monitoring of the post-accident monitoring system; S2, adopting a wide-range security level shared sensor for the shared monitoring variables; and S3, comparing a measured value of the shared sensor with a setting range of the protection system, and performing branching transmission and display according to a comparison result. The offshore small reactor serious accident instrument control system is designed in allusion to requirements of small nuclear power plants on the basis of comprehensively considering the protection system and the post-accident monitoring system, and a shared instrument is determined in a range extending mode, thereby reducing the utilization number of instruments, reducing the economic cost and reducing the use space.
Description
technical field [0001] The invention relates to the technical field of nuclear power instrumentation and control, in particular to an instrumentation and control system and a control method for a serious accident of a small offshore reactor. Background technique [0002] As my country's marine economic development gradually deepens and the national sea power maintenance strategic needs continue to highlight, the demand for offshore distributed energy bases has emerged. Due to its high power density, low refueling requirements, safety, maneuverability, multi-purpose, modularization, and clean and pollution-free features, offshore small reactor nuclear power plants have become the first choice to economically meet offshore energy needs. [0003] Existing products and methods describe the relevant methods for the design of instrumentation and control systems for severe accidents in nuclear power plants. Only the acquisition signals required for severe accidents are proposed, an...
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IPC IPC(8): G05B19/04
CPCG05B19/04
Inventor 何小明张涛郭伟李待兴
Owner CHINA NUCLEAR POWER TECH RES INST CO LTD