NUCLEAR STEAM SUPPLY SYSTEM

摘要

A nuclear steam supply system having a start-up sub-system for heating a primary coolant. In one embodiment, the invention can be a nuclear steam supply system comprising: a reactor vessel having an internal cavity, a reactor core comprising nuclear fuel disposed within the internal cavity; a steam generating vessel fluidly coupled to the reactor vessel; a primary coolant loop formed within the reactor vessel and the steam generating vessel, a primary coolant in the primary coolant loop; and a start-up sub-system fluidly coupled to the primary coolant loop, the start-up sub-system configured to: (1) receive a portion of the primary coolant from the primary coolant loop; (2) heat the portion of the primary coolant to form a heated portion of the primary coolant; and (3) inject the heated portion of the primary coolant into the primary coolant loop.

主权项

1. A nuclear steam supply system comprising:
a reactor vessel having an internal cavity, a reactor core comprising nuclear fuel disposed within the internal cavity; a steam generating vessel fluidly coupled to the reactor vessel; a riser pipe positioned within the steam generating vessel and fluidly coupled to the reactor vessel; a primary coolant loop formed within the reactor vessel and the steam generating vessel, a primary coolant in the primary coolant loop; and a start-up sub-system comprising:
an intake conduit having an inlet located in the primary coolant loop;a pump fluidly coupled to the intake conduit for pumping a portion of the primary coolant from the primary coolant loop through the intake conduit and into an injection conduit;at least one heating element for heating the portion of the primary coolant to form a heated portion of the primary coolant; andan injection nozzle fluidly coupled to the injection conduit and positioned within the riser pipe for injecting the heated portion of the primary coolant into the riser pipe.