Diversified protection device for fast reactor

A technology of protection device and driving device, which is applied in power plant safety devices, greenhouse gas reduction, nuclear power generation, etc., to achieve the effect of ensuring safety

Active Publication Date: 2018-10-26
CHINA INSTITUTE OF ATOMIC ENERGY
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

The fast reactor protection system only needs to consider the software common mode failure, and the DAS system of the fast reactor is designed as the backup of the protecti

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  • Diversified protection device for fast reactor
  • Diversified protection device for fast reactor
  • Diversified protection device for fast reactor

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Embodiment Construction

[0024] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0025] The composition of the fast reactor diversification protection device (DAS) provided by the present invention includes: a control cabinet, a network device, an operation desk or an operation area in the control room, an engineer station, and the like. The DAS system is independent of the reactor protection system.

[0026] The multi-protection devices for fast reactors should include functions of automatic driving and manual driving, as well as display and alarm functions. DAS system action output adopts positive level trigger signal, and does not give shutdown or special trigger signal after the system is powered off.

[0027] 1) Automatic driving function: DAS adopts independent detector signal, and when the relevant parameters exceed the limit value, it will stop the reactor, trigger the action of specially designed safety facilities, and g...

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Abstract

The invention relates to a diversified protection device for a fast reactor. The diversified protection device includes: two control cabinets for receiving a safety trigger signal of a reactor, and completing data processing and output; a console for completing a manual driving function; and an engineer station for completing a test and program adjustment and modification of the diversified protection device. The control cabinet comprises a signal distribution device, a data processing device, and a drive device; the signal distribution device receives a signal output by a detector independently arranged or data acquisition hardware of a reactor protection system; the data processing device performs threshold comparison and linkage logic processing on the received signal to generate an automatic driving signal; and two-out-of-two logic is performed, and then the drive device complete a function of a stopping and starting special safety facility. When the reactor protection system failsto give an error command or an abnormal event occurs, the diversified protection device of the present invention can maintain important parameters within a prescribed range to ensure the safety of the reactor.

Description

technical field [0001] The invention belongs to reactor design technology, in particular to a diversification protection (DAS) device for fast reactors. Background technique [0002] In the design of reactor protection system using digital technology, there is a problem of software common mode failure. When the reactor protection system fails to give wrong instructions or abnormal events (accidents) occur, the diversified protection devices can maintain important parameters within the specified range to ensure the safety of the reactor. At present, the PWR also has a system device called DAS. Its scope is generally the combination of the anticipatory transient (ATWT) response system and the software failure response system that failed to emergency shut down. Its logic is mainly to deal with core loss accidents. The fast reactor protection system only needs to consider the software common mode failure, and the DAS system of the fast reactor is designed as the backup of the p...

Claims

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Application Information

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IPC IPC(8): G21D3/06
CPCG21D3/06Y02E30/00
Inventor 冯伟伟盛静俞霄
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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