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Nuclear power plant water supply system-based fieldbus system and method

A water supply system and field bus technology, applied in the field of nuclear power plants, can solve the problems of complex wiring of the control system, high cost, and low equipment accuracy

Active Publication Date: 2017-03-15
中广核工程有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a field bus system and method based on the nuclear power plant water supply system for the problems of complex wiring, high cost, low precision of traditional field equipment and difficult maintenance in the later stage of the control system of the nuclear power plant water supply system

Method used

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  • Nuclear power plant water supply system-based fieldbus system and method
  • Nuclear power plant water supply system-based fieldbus system and method
  • Nuclear power plant water supply system-based fieldbus system and method

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Embodiment 1

[0081] The embodiment of the present invention provides a field bus system based on nuclear power plant water supply system, see figure 1 , the system consists of:

[0082] The field bus network 20 is connected to the field devices 10, and is used to transmit control signals from the control system 40 to the field devices 10 and receive detection signals from the field devices 10 through different transmission paths;

[0083] The photoelectric converter assembly 30 is connected to the field bus network 20 and the control system 40 respectively, and is used to perform secondary conversion of the control signal or the detection signal to the photoelectric signal according to the control signal or detection signal obtained by different transmission paths, and convert the converted The control signal is sent to the fieldbus network 20 , or the converted detection signal is sent to the control system 40 .

[0084] Specifically, see figure 2 , the field bus network 20 is a Profib...

Embodiment 2

[0118] The embodiment of the present invention also provides a fieldbus method based on the nuclear power plant water supply system, which is applicable to the fieldbus system based on the nuclear power plant water supply system shown in Embodiment 1, see Figure 4 , the method includes:

[0119] S1. Under the unit start-up, hot standby, and shutdown conditions, collect the water supply parameters of the water supply system through the field device 10, generate a detection signal, and transmit it to the field bus network 20;

[0120] S2. Receive the detection signal, and send the converted detection signal to the control system 40 after performing secondary conversion of the photoelectric signal through the photoelectric converter assembly 30;

[0121] S3. Receive and process the detection signal, and send a control signal according to the processing result;

[0122] S4. Receive the control signal, perform secondary conversion of the photoelectric signal through the photoelec...

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Abstract

The present invention provides a nuclear power plant water supply system-based fieldbus system and a method. The system comprises field equipment, a fieldbus network, a photoelectric converter assembly and a control system; the field equipment is used for collecting the water supply parameters of a water supply system, supplying water for the secondary side of a steam generator and maintaining the water level on the secondary side of the steam generator; the fieldbus network is used for transmitting control signals and receiving detection signals; the photoelectric converter assembly is used for performing photoelectric signal secondary conversion on the control signals or the detection signals; and the control system is used for processing the control signals and transmitting the control signals. According to the nuclear power plant water supply system-based fieldbus system and method of the invention, the fieldbus technology is comprehensively applied to the field equipment layer in the water supply system, so that the field equipment of the water supply system can be replaced by intelligent equipment, and therefore, control on the water supply system can be controlled, costs can be optimized, and later-stage management and maintenance are more convenient.

Description

technical field [0001] The invention relates to the technical field of nuclear power plants, in particular to a field bus system and method based on a nuclear power plant water supply system. Background technique [0002] Fieldbus refers to a data bus for digital, serial and multipoint communication between field devices installed in a manufacturing or process area and automatic devices in a control room. Among the more than 40 types of fieldbuses in the world, none of them can cover all the application layers. Each fieldbus has its own technical characteristics and scope of application. [0003] At present, the field bus is widely used in the fields of petroleum, electric power and chemical industry, etc., but there is no system in the commercial nuclear power plant that uses the field bus to control the field equipment level. The water supply system in the existing nuclear power plants basically relies on hard wiring to control the on-site equipment. Due to the scattered ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/25H04B10/27H04L12/40
CPCH04B10/25H04B10/27H04L12/40006H04L12/40176H04L2012/40221H04L2012/4026
Inventor 苏宇张超贾宝峰黄勇成张小晶张旺盛江辉史觊刘东波孟光
Owner 中广核工程有限公司