STEAM GENERATOR Russian patent published in 2015 - IPC F22B1/02 

FIELD: power industry.

SUBSTANCE: steam generator includes a horizontal housing with heat carrier supply and discharge headers and a tube bank assembled of horizontally located U-shaped heat exchange tubes and provided with a spacing device in the form of shaped and flat metal strips. The heat exchange tubes are laid into the shaped metal strips of the spacing device and fixed with their ends in the headers. With that, the heat exchange tubes in places of laying on the shaped metal strips of the spacing device are isolated from them by using dielectric sleeves, and shaped and flat metal strips of the spacing device are isolated from each other through dielectric gaskets. Dielectric sleeves and dielectric gaskets can be made from polymer composite materials.

EFFECT: increasing service life of a steam generator by elimination of shutdown of a reactor plant due to formation of deposits of chlorides, occurrence of corrosion cracks in heat exchange tubes and increasing safe operation of the reactor plant.

7 cl, 5 dwg