Nuclear power station SEC system fault detection method, and device, equipment and storage medium

A system failure and inspection method technology, applied in nuclear power generation, nuclear engineering, nuclear reactor monitoring and other directions, can solve the problems of easy corrosion of inspection loop, failure, damage to isolation valve, etc.

Pending Publication Date: 2021-07-23
GUANGDONG NUCLEAR POWER JOINT VENTURE +5
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Problems solved by technology

[0005] Based on this, it is necessary to address the above technical problems and provide a nuclear power plant SEC system failure inspection method, device, computer equipment and storage media to solve the problem of isolating valve damage caused by regular inspections, and m...

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  • Nuclear power station SEC system fault detection method, and device, equipment and storage medium
  • Nuclear power station SEC system fault detection method, and device, equipment and storage medium
  • Nuclear power station SEC system fault detection method, and device, equipment and storage medium

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Embodiment Construction

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0033] In one embodiment, as figure 1 As shown, the SEC system of a nuclear power plant includes several main heat exchange circuits 300; the main heat exchange circuits 300 obtain cooling water 100 from the circulating water system 200 through the SEC pump, and the cooling water 100 is filtered by a filter 340 and enters the heat exchanger for heat exchange. Finally, the cooling water 100 is discharged from the main heat exchange circuit 300; the main...

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Abstract

The invention relates to the technical field of nuclear power station industrial safety, and especially relates to a nuclear power station SEC system fault detection method and device, equipment and a storage medium. The method comprises the steps that a heat exchange trunk obtains cooling water from a circulating water system through an SEC pump, the cooling water is filtered by a filter and enters a heat exchanger for heat exchange, and finally the cooling water is discharged from the heat exchange trunk, wherein the heat exchange trunk is provided with a pressure detection branch used for detecting the pressure of the heat exchange trunk; when the SEC system is subjected to fault detection, a first isolation valve is opened, a second isolation valve is closed, a pressure switch pressure release valve is opened, and a pressure signal of a pressure switch is obtained; when the pressure signal is lower than a preset threshold value, whether the SEC system generates a first alarm signal or not is judged, and whether the SEC system starts a second SEC pump or not is judged; and if the SEC system generates the first alarm signal and the SEC system starts the second SEC pump, it is determined that the SEC system is in a normal response state. The fault maintenance time can be saved, the random I0 consumption ratio is reduced, and unavailable events of the nuclear safety equipment are reduced.

Description

technical field [0001] The invention relates to the technical field of nuclear power plant industrial safety, in particular to a nuclear power plant SEC system failure inspection method, device, equipment and storage medium in the field of important plant water systems. Background technique [0002] Nuclear power plant SEC system (Essential Service Water System, important plant water system) is part of the cooling system of the nuclear island of the nuclear power plant. The heat load from the related structures, equipment cooling water system (RRI) and components is transferred to the final heat sink, which is sea water. SEC system mainly includes SEC pump, filter, heat exchanger (RRI-SEC), various valves and pipelines. [0003] The "Nuclear Safety-Related Systems and Equipment Periodic Test Supervision Program" requires that the "Emergency Switching of Series A SEC Pumps due to Low Outlet Pressure" or "Emergency Switching of Series B SEC Pumps Due to Low Outlet Pressure" b...

Claims

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Application Information

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IPC IPC(8): G21C17/017G21C13/067
CPCG21C13/067G21C17/017Y02E30/30
Inventor 王远国胡天奇杨建勇
Owner GUANGDONG NUCLEAR POWER JOINT VENTURE
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