Preprocessing device for neutron pulse signals in reactor

A preprocessing device and pulse signal technology, which is applied in reactors, nuclear reactor monitoring, program control, etc., can solve the problems of lack of maintainability and stability, neutron pulse signal acquisition distortion, noise interference, etc.

Active Publication Date: 2019-04-05
NUCLEAR POWER INSTITUTE OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The existing neutron pulse signal preprocessing device only includes a preamplifier, and the pulse main amplifier for neutron pulse signal screening and the high-voltage power supply for neutron detector work are installed in the remote nuclear testing equipment. The long-distance transmission of the pulse signal between th

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  • Preprocessing device for neutron pulse signals in reactor
  • Preprocessing device for neutron pulse signals in reactor
  • Preprocessing device for neutron pulse signals in reactor

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Embodiment 1

[0031] Working principle: The neutron pulse signal preprocessing device adopts a modular pulse amplification module, which integrates the pulse signal preamplifier component and the main amplifier component nearby, realizes all preprocessing functions such as pulse signal screening, shaping and amplification, and reduces long-distance Noise interference caused by the transmission of pulse signals; build an independent intelligent parameter adjustment module, receive the parameter settings of the remote control system through the SPI bus interface, and use the digital potentiometer to realize the non-key digital signal adjustment pulse amplification discrimination threshold and neutron detector work high pressure.

[0032] Such as figure 1 As shown, the structure of the neutron pulse signal preprocessing device in this embodiment adopts modularization and miniaturization design technology, and the overall design is a portable chassis with input and output interfaces. The intern...

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Abstract

The invention discloses a preprocessing device for neutron pulse signals in a reactor. The preprocessing device comprises a pulse amplifying module, a parameter adjusting module, a low-voltage power supply module and a high-voltage power supply module. The pulse amplifying module performs preprocessing such as discriminating, shaping, and amplifying on the pulse signals output by a neutron detector and then inputs the pulse signals to a remote pulse signal acquiring device; the parameter adjusting module outputs control parameters to the pulse amplifying module and the high-voltage power supply module respectively, and the parameter adjusting module is connected to a remote control system; remote setting and adjusting of the control parameters are realized by the remote control system; thelow-voltage power supply module provides the power supply by an external power supply, and provides a working power supply for the pulse amplifying module, the high-voltage power supply module and the parameter adjusting module respectively; the high-voltage power supply module provides a high-voltage power supply signal and a high-voltage mirror signal for the pulse amplifying module. The preprocessing device has the advantages of integration and intelligence, and solves the problems that signal transmitting interference in a existing system is large and the stability for parameter adjustingis low.

Description

technical field [0001] The invention relates to the field of nuclear industry, in particular to a preprocessing device for reactor neutron pulse signals. Background technique [0002] The neutron pulse signal preprocessing device is a device for on-site processing of the output signal of the neutron detector inside the reactor, and is used for the discrimination, shaping and amplification of the neutron pulse signal. The signal processing result of the device is used for the collection of neutron pulse counting of remote nuclear testing equipment. The monitoring of the neutron pulse signal is an important way to obtain the dynamic parameters during the first physical start-up test and operation of the reactor. It is specifically used for neutron counting supervision and reactor criticality extrapolation, which is essential for the safe operation of the reactor. The preprocessing device of the neutron pulse signal is an important guarantee for the monitoring accuracy of the ...

Claims

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Application Information

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IPC IPC(8): G05B19/042G21C17/00
CPCG05B19/0423G21C17/00Y02E30/30
Inventor 邓圣代航阳付国恩崔璨王璨辉踪训成王红波
Owner NUCLEAR POWER INSTITUTE OF CHINA
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