Reactor protection system in-service inspection device

A reactor protection and inspection device technology, applied in reactors, nuclear reactor monitoring, greenhouse gas reduction, etc., can solve problems such as insufficient anti-interference ability and inspection accuracy, unfavorable for timely discovery of protection systems, complex structure of inspection devices, etc., to achieve The effect of short inspection cycle, convenient maintenance and debugging, and flexible parameter setting

Active Publication Date: 2020-10-09
CHINA INSTITUTE OF ATOMIC ENERGY
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  • Description
  • Claims
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Problems solved by technology

[0003] At present, the periodic tests of the reactor protection system are mostly carried out after shutdown or require bypass. The inspection period for shutdown is long, which is not conducive to timely detection of problems in the protection system. Setting bypass will make the structure of the inspection device complicated.
In addition, the fault judgment method of the regular test of the existing reactor protection system is to sample the signal level near the midpoint of the return pulse, and judge whether the return signal is correct by the signal level. The anti-interference ability of this method and the accuracy of the inspection There are deficiencies that need to be improved and improved

Method used

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  • Reactor protection system in-service inspection device
  • Reactor protection system in-service inspection device

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Embodiment Construction

[0017] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0018] The reactor protection system T2 and T3 in-service inspection device hardware platforms provided by the present invention are built with NI digital signal processing module and industrial computer (touch all-in-one computer) as the core, such as figure 1 shown. The touch all-in-one computer and the digital signal processing module perform network communication (wired or wireless) based on the TCP / IP protocol to exchange data. Through the I / O interface on the NIcDAQ-9188 chassis of the digital signal processing module, the connection and communication between the digital signal processing module and the T2 and T3 in-service inspection chassis are realized. Finally, through the developed software, the selection of relevant plug-ins and parameters for T2 and T3 inspections can be realized, and the corresponding inspection logic can be realized. ...

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Abstract

The invention relates to a reactor protection system in-service inspection device based on an NI (National Instrument) technique. Each row of corresponding reactor protection systems is configured; the reactor protection system in-service inspection device comprises an industrial personal computer and an in-service inspection interface circuit; an independent in-service inspection interface circuit is arranged for each channel of each row of the reactor protection systems; the in-service inspection interface circuits are respectively positioned in corresponding in-service inspection cases andcomprise low-voltage power supplies, T2 inspection control inserts, T3 inspection control inserts, T2 inspection inserts and T3 inspection inserts; and the in-service inspection cases are connected with the industrial personal computer through digital signal processing modules. By adopting the device, reactors do not need to be powered off, operation states of a reactor protection system can be monitored on line, and the device is simple in inspection operation, short in inspection cycle and high in accuracy and reliability.

Description

technical field [0001] The invention relates to a periodic test technology of a reactor protection system, in particular to an in-service inspection device for a reactor protection system based on NI technology. Background technique [0002] The function of the in-service inspection device is to check whether the function of the protection system is normal at any time during the normal operation of the reactor protection system equipment, and to detect possible faults in time. In various normal operations, it will not cause malfunction or refusal of the protection system. [0003] At present, the periodic tests of the reactor protection system are mostly carried out after the reactor is shut down or need to be bypassed. The inspection period of the reactor shutdown is long, which is not conducive to timely detection of problems in the protection system. Setting up a bypass will make the structure of the inspection device complicated. In addition, the fault judgment method o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21C17/00
CPCG21C17/00Y02E30/30
Inventor 刘桂娟刘国发俞霄马勇刚段天英吴纯良白欣然冯伟伟
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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