Shielding structure for compact arrangement of small stacks

The invention provides a shielding structure for compactly arranging a small reactor, which comprises a pressure suppression pool, a pressure container, a steam generator, a main pump and a voltage stabilizer which are arranged in the pressure suppression pool through an integrated integral support, and further comprises: a first shielding assembly which is arranged on the outer side of the pressure container and is used for shielding neutrons leaked from a reactor core, a second shielding assembly that can shield most fast neutrons radiated by the reactor core so as to reduce the neutron fluence of the inner wall of the pressure vessel, a third shielding assembly that is arranged between the hanging basket and the inner wall of the pressure container, a fourth shielding assembly which surrounds an annular cavity of the pressure suppression pool equipment, completely envelops the main equipment above the water space supporting plate inwards and is used for absorbing neutrons and gammarays radiated by the reac