A nuclear power plant flow sampling display system and method

A display system and nuclear power plant technology, applied in nuclear power generation, nuclear engineering, nuclear reactor monitoring, etc., can solve the problems of reducing the residence time, unable to display and output the flow measurement signals of various channels, and achieve the effect of reducing the residence time

Active Publication Date: 2018-06-15
中广核工程有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at the technical problem existing in the prior art that the nuclear power plant nuclear sampling flow sampling display device cannot automatically and real-time display and output the flow measurement signals of each channel, and provides a nuclear power plant flow sampling display system and method, which realizes automatic and intuitive And efficiently display and output the processing results of various sampling flow signals, so that the operator can know the measurement results accurately and quickly, and reduce the technical effect of the operator's stay time in the nuclear radiation area

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  • A nuclear power plant flow sampling display system and method
  • A nuclear power plant flow sampling display system and method
  • A nuclear power plant flow sampling display system and method

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Embodiment 1

[0049] Please refer to figure 1 , an embodiment of the present invention provides a nuclear power plant flow sampling display system, the system includes:

[0050] The signal collection and processing module 10 is used to collect flow measurement signals output by a plurality of flowmeters, process the flow measurement signals to obtain a volume flow value, and compare the volume flow value with a preset value to obtain a comparison result , and performing switching value conversion processing on the comparison result to obtain a switching value signal; wherein, the plurality of flowmeters are specifically arranged in a nuclear sampling system of a nuclear power plant;

[0051] A first output module 20, configured to display the volume flow value, and output a first alarm signal based on the comparison result;

[0052] The second output module 30 is configured to output a second alarm signal based on the switch signal.

[0053] In the specific implementation process, in orde...

Embodiment 2

[0065] According to the characteristics of the double-stack arrangement of general nuclear power units in China, two units need to be set up for the two nuclear reactors in the nuclear power plant, that is, Unit 1 and Unit 2; The liquid sampling principle of the sampling system is introduced in detail:

[0066] Flow sampling samples are taken from the following systems: reactor coolant system, radioactive liquid handling system, radioactive gas handling system, steam generator secondary side and steam generator blowdown system, and other auxiliary systems. In this embodiment, a turbine flowmeter is used for flow measurement. The turbine flowmeter does not need an external power supply to supply power, and outputs a frequency signal. There are 26 turbine flowmeters in two units, of which 20 turbine flowmeters are used to measure 1, Each of the 10 flow signals of Unit 2, and the remaining 6 turbine flowmeters are used to measure the 6 common signals of the two units, as shown in...

Embodiment 3

[0077] Based on the same inventive concept, please refer to Figure 6 , the embodiment of the present invention also provides a nuclear power plant flow sampling display method, the method includes the steps of:

[0078] S1. Collect flow measurement signals output by a plurality of flowmeters, process the flow measurement signals to obtain a volume flow value, and compare the volume flow value with a preset value to obtain a comparison result, and perform the comparison As a result, the switching value conversion process is performed to obtain the switching value signal;

[0079] S2. Display the volume flow value, and output a first alarm signal based on the comparison result; and / or output a second alarm signal based on the switching signal.

[0080] Further, please refer to Figure 7 , the flowmeter is specifically a turbine flowmeter, and the step S1 specifically includes:

[0081] S11. Collect frequency signals output by a plurality of turbine flowmeters of the nuclear ...

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Abstract

The invention discloses a system and a method for displaying flow sampling in a nuclear power plant, and solves the technical problem that in the prior art, the nuclear power plant flow sampling display device cannot automatically display multiple paths of flow measurement signals in real time. The system comprises a signal acquisition processing module, a first output module, and a second output module, wherein the signal acquisition processing module is used for acquiring the flow measurement signals outputted by a plurality of flowmeters, processing the flow measurement signals, obtaining volume flow values, comparing the volume flow values with preset values to obtain comparative results, and converting the comparative results to switching value to obtain switching value signals; the first output module is used for outputting the volume flow values and outputting alarm signals based on the comparative results; the second output module is used for outputting alerting signals based on the switching value signals. The system can automatically, directly and efficiently output and display the processing results of the sampling flow signals, and give an alarm, so as to realize the technological effect of allowing operators to accurately and quickly obtain the measurement result.

Description

technical field [0001] The invention relates to the technical field of nuclear power plant nuclear sampling, in particular to a nuclear power plant flow sampling display system and method. Background technique [0002] The nuclear sampling system of nuclear power plants can centrally sample liquids and gases in nuclear power units, and conduct chemical and radioactive analysis on the sampling results; although the system does not directly undertake nuclear safety functions, it is beneficial to the diagnosis and control of nuclear power unit accidents; therefore , The nuclear sampling system of a nuclear power plant is an indispensable part of a nuclear power unit. [0003] Among them, the liquid sampling (i.e. nuclear power plant flow sampling) link of the nuclear sampling system of the nuclear power plant includes collecting highly radioactive liquid samples from the main circuit of the reactor and the containment spray system, and sampling from the blowdown system of the s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21C17/07
CPCG21C17/07Y02E30/30
Inventor 吴斌刘琢
Owner 中广核工程有限公司
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