Nuclear power plant airtightness test method, airtightness test device and electronic equipment
A test method and airtightness technology, which is applied in the field of airtightness test device, electronic equipment and computer-readable storage medium, and nuclear power plant airtightness test method, can solve the problems of unit retreat and inability to assess the safety of the unit, and reduce operating costs , Reduce the effect of unit retreat
Active Publication Date: 2022-01-21
LINGDONG NUCLEAR POWER +5
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Problems solved by technology
However, in the operation of a nuclear power plant, if a single penetration of the containment vessel leaks, the safety of the unit cannot be evaluated due to the lack of safety criteria for a single containment penetration.
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[0029] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
[0030] It should be understood that when used in this specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and / or components, but does not exclude one or more other Presence or addition of features, wholes, steps, operations, elements, components and / or collections thereof.
[0031] It should...
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This application is applicable to the technical field of specially designed safety facilities for nuclear power plants, and provides a nuclear power plant airtightness test method, nuclear power plant airtightness test device and electronic equipment. The method includes: obtaining the actual leakage rate of the target isolation valve; calculating the target isolation valve The actual pressure difference of the valve; obtain the leakage rate of the overhaul penetration, wherein the leakage rate of the overhaul penetration is the total leakage rate measured by all the penetrations on the containment during the last overhaul; calculate the leakage rate of the overhaul penetration and The absolute value of the difference between the preset leakage thresholds; according to the absolute value, the preset pressure difference of the penetrating member and the actual pressure difference, calculate the leakage rate standard of the target isolation valve; based on the actual leakage rate and The leak rate standard is used to obtain test results. Through the above method, the tightness of the isolation valve of a single containment mechanical penetration can be tested to reduce unnecessary retreat of the unit.
Description
technical field [0001] The application belongs to the technical field of specially designed safety facilities for nuclear power plants, and in particular relates to a nuclear power plant airtightness test method, airtightness test device, electronic equipment, and a computer-readable storage medium. Background technique [0002] The containment vessel is the third physical barrier for nuclear power plants to prevent the escape of radioactive materials. In the operation technical specification, there are strict restrictions on the sealing of the containment under various operating conditions, so as to ensure that the containment has the function of containing radioactive substances in the event of a loss of water accident. [0003] It is stipulated in the "Containment Mechanical Penetration Isolation Valve Tightness Test Evaluation": compare the penetration test results with the acceptance standard, if the total leakage rate of all mechanical penetration isolation valves is l...
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IPC IPC(8): G01M3/28
CPCG01M3/2876
Inventor 柴高浪吴潞华刘丹
Owner LINGDONG NUCLEAR POWER