Protecting system of nuclear power station reactor
A technology for nuclear power plant reactors and protection systems, applied in the field of nuclear power plant reactor protection systems, can solve problems such as low degree of automation and low precision, and achieve the effects of high degree of automation and precision, improved usability, and advantages of flexibility
Active Publication Date: 2013-01-02
中广核工程有限公司 +1
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Problems solved by technology
[0006] The technical problem to be solved by the present invention is to provide a digital nuclear power plant reactor protection system for the defects of low automation and low precision of the existing analog reactor protection system
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[0016] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0017] see figure 2 , is a structural schematic diagram of a preferred embodiment of the nuclear power plant reactor protection system of the present invention. Such as figure 2 As shown, the nuclear power plant reactor protection system provided by the embodiment of the present invention includes at least one lower-level acquisition device and at least one upper-level processing device. In this embodiment, four lower-layer collection devices are provided, which are a first lower-layer collection device 101 , a second lower-layer collection device 102 , a third lower-layer collection device 103 and a fourth lower-layer collection device 104 . The lower-layer acquisition device provided in this embodiment is connected to four instrument clusters...
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The invention relates to a protecting system of a nuclear power station reactor, comprising at least one lower-layer acquisition device and an upper-layer processing device, wherein the lower-layer acquisition device is connected with an instrument group of the nuclear power station reactor; the instrument group comprises a process measuring instrument and a nuclear instrument; the lower-layer acquisition device acquires and processes a process signal of the process measuring instrument and a nuclear power signal generated by the nuclear instrument, and compares the process signal and the nuclear power signal respectively with a set process signal threshold and a set nuclear power signal threshold to generate digital quantity signals; and the upper-layer processing device is connected with the lower-layer acquisition device and is used for receiving the digital quantity signals generated by the lower-layer acquisition device and carrying out preset logic processing on the digital quantity signals and then generating a shut-down signal and a special driving signal. By carrying out digital processing on a reactor signal, compared with a simulation technique, the implemented protecting system of the nuclear power station reactor has high automation degree and has greater advantages in the aspect of improving usability, reliability, maintainability, economical efficiency, obsolescence resistance and flexibility.
Description
technical field [0001] The invention relates to the technical field of instrument control, in particular to a nuclear power plant reactor protection system. Background technique [0002] The function of the reactor protection system is mainly to protect the integrity of the three major nuclear safety barriers (fuel cladding, primary circuit pressure boundary and containment). Shut down and start special safety facilities. [0003] see figure 1 , is a schematic diagram of the structure of an existing simulated reactor protection system for a nuclear power plant. Such as figure 1 As shown, the analog reactor protection system first collects analog signals through multiple instrument groups, such as the first instrument group 21 to the fourth instrument group 24, and each instrument group is composed of process measurement instruments and nuclear instruments. The sensors of these instrument clusters are set at the reactor site to detect process signals and nuclear power sig...
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IPC IPC(8): G21C17/00G21D3/04G05B9/02G05B1/03
CPCY02E30/40Y02E30/00Y02E30/30
Inventor 刘真孙永滨张坚李卓佳徐良军
Owner 中广核工程有限公司