Steam Generator with a Horizontal Heat-Exchange Tube Bundle and Its Assembly Method
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Nov 16, 2015
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Dec 12, 2014
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The invention relates to steam generators for VVER nuclear power plants. We claim a steam generator with a horizontal heat-exchange tube bundle comprising a welded cylinder vessel manufactured of steel shells and equipped with at least one feed water supply connection pipe and one steam removal connection pipe, and two elliptical bottoms, vessel internals, inlet and outlet headers connected to the heat-exchange tube bundle forming a heat-exchange surface of the steam generator, wherein inner diameter dvess of the steam generator vessel is selected based on a formula. The steam generator vessel is filled with heat-exchange bundle tubes from the bottom upwards to the height of three quarters of its inner diameter or less, the remaining space in the top part of steam generator vessel is left for steam drying. The technical result is creation of a steam generator with a decreased specific amount of metal per structure wherein the generated steam is dried in one with the heat-exchange surface.
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