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High-performance signal processing module used by nuclear power station reactor core nuclear measurement system

A technology for signal processing modules and nuclear power plants, which is applied in the direction of electrical components, negative feedback circuit layout, parts of amplification devices, etc., can solve the problems of frequent faults of signal processing modules and affect the normal operation of the core nuclear testing system, etc., to ensure Long-term stable operation, improved safety and reliability, and low cost effects

Pending Publication Date: 2017-05-17
CNNC NUCLEAR POWER OPERATION MANAGEMENT +1
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Problems solved by technology

[0003] The purpose of the present invention is to provide a high-performance signal processing module used in nuclear power plant nuclear test system for the frequent fai

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  • High-performance signal processing module used by nuclear power station reactor core nuclear measurement system
  • High-performance signal processing module used by nuclear power station reactor core nuclear measurement system
  • High-performance signal processing module used by nuclear power station reactor core nuclear measurement system

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[0022] The present invention will be further described below with reference to the drawings and embodiments.

[0023] Such as figure 1 As shown, a high-performance signal processing module used in a nuclear power plant core test system includes a differential negative feedback amplifier circuit, an isolated operational amplifier module, a reverse negative feedback circuit and a filter circuit. The external power supply voltage is ±15VDC, and the output voltage It is a 0-10V DC voltage signal. The output terminal of the differential negative feedback amplifier circuit is connected with the input terminal of the isolation op amp module, the output terminal of the isolation op amp module is respectively connected with the input terminal of the filter circuit and the input terminal of the negative feedback circuit, and the output terminal of the filter circuit is connected with the differential The input terminal of the negative feedback amplifier circuit is connected. The different...

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Abstract

The invention belongs to the technical field of nuclear power station instrumentation and control systems, particularly relates to a high-performance signal processing module used by a nuclear power station reactor core nuclear measurement system, and aims at solving the problems that a failure happens on the type of the signal processing module of an existing nuclear power plant frequently, normal work of the reactor core nuclear measurement system is affected. The high-performance signal processing module is characterized by comprising a differential negative feedback amplifying circuit, an isolation operational amplifier module, a reverse negative feedback circuit and a filter circuit, the external power supply voltage is +/-15 VDC, and the output voltage is a 0-10 V direction current voltage signal; the output end of the differential negative feedback amplifying circuit is connected with the input end of the filter circuit, the output end of the isolation operational amplifier module is connected with the input end of the reverse negative feedback circuit and the input end of the filter circuit separately, the output end of the filter circuit is connected with the input end of the differential negative feedback amplifying circuit, and the output end of the isolation operational amplifier module is connected with the input end of the reverse negative feedback circuit. The high-performance signal processing module has the advantages of being simple in circuit form, low in cost and high in reliability.

Description

technical field [0001] The invention belongs to the technical field of nuclear power plant instrument control systems, and in particular relates to a high-performance signal processing module used in a nuclear power plant nuclear test system. Background technique [0002] The BD-IMCH1034 processing module used in the nuclear test system of Qinshan Nuclear Power Plant No. 1 is responsible for isolating and amplifying the flux signal (low level) output by the neutron detector of the nuclear test system of the nuclear power plant and then outputting it to the computer system of the power station. During the operation of the power station for more than 20 years, this type of signal processing module has failed several times, affecting the normal operation of the core nuclear testing system. In order to avoid measurement failures in the core nuclear measurement system and ensure the stable operation of the unit, the Technical Department of the First Plant of CNNC Nuclear Power Op...

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Application Information

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IPC IPC(8): H03F1/32H03F1/34
CPCH03F1/3211H03F1/34
Inventor 王伟于艳玲周星金舟锴王海南
Owner CNNC NUCLEAR POWER OPERATION MANAGEMENT
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