Containment Pressure Relief System Under Severe Accident of Underground Nuclear Power Plant
A serious accident and containment technology, applied in the field of nuclear power plant containment design, can solve problems such as the inability to simultaneously take into account the shortcomings of rapid decompression of the containment and radioactive gas discharge, and achieve the effect of avoiding a large number of releases, slowing down the consequences of accidents, and maintaining integrity.
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[0018] Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail:
[0019] The containment decompression system shown in the figure under a serious accident in an underground nuclear power plant includes a containment 25, a pressure relief pipeline, and a pressure relief chamber 24. The containment is located in the reactor building 26, and one end of the pressure relief pipeline includes the first The other end of the pressure relief pipeline includes a third branch connected to the pressure relief chamber and a fourth branch connected to the external chimney, and the fourth branch is located in the pressure relief chamber.
[0020] On the first branch, a first safety valve 3 and a first blasting valve 9 are arranged in series in sequence, and a second safety valve 10 is arranged in parallel on the first blasting valve 9;
[0021] On the second branch, a second blasting valve 6, a third safety valve 2 and a fourth ...
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