Flow distribution structure of reactor of nuclear power station
A nuclear power plant reactor and flow distribution technology, which is applied in the field of nuclear power, can solve the problems of complex structure, large number of connecting bolts, and high cost, and achieve the effects of avoiding vortex shedding, good flow distribution uniformity, and improving flow field characteristics
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[0025] see Figure 5 and Image 6 , The nuclear power plant reactor flow distribution structure of the present invention includes a core lower support plate 50 and a head-shaped structure.
[0026] The lower support plate 50 of the core is welded to the lower end of the gondola 80, and perforations 52 are formed corresponding to the positions of each group of fuel assemblies.
[0027] The head-shaped structure includes a head 60 and a flange 62 . Wherein, the head 60 is hemispherical, with a thickness of 20-150 mm, and a large number of water flow holes 600 with a diameter of 20-200 mm are evenly opened on it. These flow holes 600 include vertical flow holes 602, horizontal flow holes 604 and oblique flow holes. hole 606. The flange 62 is arranged on the edge of the head 60, and a plurality of screw holes 620 are opened on it. The bolts 64 pass through the screw holes 620 on the flange 62 to fix the head-shaped structure on the edge of the lower surface of the lower support...
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