Integrated reactor system having passive removal of residual heat

An integrated passive reactor system comprising a pressure vessel, a containment vessel arranged outside the pressure vessel and a reactor core arranged inside the pressure vessel, wherein

• the integrated reactor system includes a secondary side passive residual heat removal system loop,
• the secondary side passive residual heat removal system loop comprises
• a primary loop heat exchanger arranged inside the pressure vessel
• and a passive residual heat removal heat exchanger arranged outside the containment vessel,
• the primary loop heat exchanger is arranged above the reactor core, and
• the passive residual heat removal heat exchanger is arranged in a water tank which is fixed outside the containment vessel,
• the primary loop heat exchanger and the passive residual heat removal heat exchanger are connected by a heat exchanger inlet pipeline and a heat exchanger outlet pipeline,
• the pressure vessel comprises a first-layer shell and a second-layer shell arranged on the top of the first-layer shell to form a top double-layer structure with the first-layer shell,
• wherein the first-layer shell encloses a first space and the second-layer shell encloses a second space fluidly isolated from the first space,
• a pressurizer is fixedly installed within the second-layer shell,
• and a surge pipe is provided between the pressurizer and the first-layer shell,
• a plurality of primary loop-related pipelines are communicated with the second-layer shell,
• and the upper end of each of the plurality of primary loop-related pipelines penetrates through the second-layer shell and extends above the second-layer shell.