Small nuclear power generation device

The invention belongs to the technical field of nuclear power generation, and discloses a small nuclear power generation device which comprises a shell, a reactor, a steam generator, a steam turbine, a condenser and a power generator are arranged in the shell, a pressure vessel and a first loop which are communicated with each other are arranged in the reactor, and the first loop penetrates through the reactor and extends into the steam generator. The steam generator is sequentially communicated with the steam turbine and the condenser through a second loop, and the steam turbine is connected with the generator; a reactor core is arranged in the pressure vessel, the first loop is provided with a voltage stabilizer, a plurality of control rods are arranged at the top of the pressure vessel, the tops of the control rods are fixedly arranged on the top wall in the reactor through a driving assembly, and a radiation shield is arranged on the inner wall of the pressure vessel. Heat energy generated by fission of t