A coolant recirculation system of a nuclear power plant is provided that may include: a reactor vessel configured to accommodate a reactor core and a reactor coolant therein; a steam generator configured to transfer a gas, converted from a liquid phase to a gaseous phase by exchanging heat with the reactor coolant, to a turbine system; a pressurizer configured to control pressure of the reactor coolant in the reactor vessel; a primary system pressure reducing valve located above the pressurizer and configured to open at a predetermined pressure to discharge the reactor coolant into a containment building for rapid depressurization; and a moisture separator connected to the primary system pressure reducing valve to separate moisture. The moisture separator may separate the reactor coolant into a gaseous phase and a liquid phase. Then, the liquid phase reactor coolant may be returned to the reactor vessel to be recirculated.

A coolant recirculation system of a nuclear power plant is provided that may include: a reactor vessel configured to accommodate a reactor core and a reactor coolant therein; a steam generator configured to transfer a gas, converted from a liquid phase to a gaseous phase by exchanging heat with the reactor coolant, to a turbine system; a pressurizer configured to control pressure of the reactor coolant in the reactor vessel; a primary system pressure reducing valve located above the pressurizer and configured to open at a predetermined pressure to discharge the reactor coolant into a containment building for rapid depressurization; and a moisture separator connected to the primary system pressure reducing valve to separate moisture. The moisture separator may separate the reactor coolant into a gaseous phase and a liquid phase. Then, the liquid phase reactor coolant may be returned to the reactor vessel to be recirculated.

A power generating and water purifying system. The system includes a closed loop power generator, a closed loop heat exchanger, and a closed loop water purifier. Hot brine water vapor travels from a reactor to a turbine, which generates electricity. The hot brine water vapor is then cooled by the closed loop heat exchanger and travels back to the reactor. The electricity powers generators. The electricity further powers an ammonia pump and a coolant compressor of the closed loop heat exchanger. Dirty water enters through a water inlet and is chilled by the closed loop heat exchanger. The water is then directed to a hot water accumulator, in which the water is heated by the closed loop heat exchanger. The water is vaporized by a hot plate and a UV light source. The distilled water is then cooled in a cooling tower and delivered to water tower as purified water.

A power generating and water purifying system. The system includes a closed loop power generator, a closed loop heat exchanger, and a closed loop water purifier. Hot brine water vapor travels from a reactor to a turbine, which generates electricity. The hot brine water vapor is then cooled by the closed loop heat exchanger and travels back to the reactor. The electricity powers generators. The electricity further powers an ammonia pump and a coolant compressor of the closed loop heat exchanger. Dirty water enters through a water inlet and is chilled by the closed loop heat exchanger. The water is then directed to a hot water accumulator, in which the water is heated by the closed loop heat exchanger. The water is vaporized by a hot plate and a UV light source. The distilled water is then cooled in a cooling tower and delivered to water tower as purified water.

An external reactor vessel cooling and electric power generation system according to the present invention includes an external reactor vessel cooling section formed to enclose at least part of a reactor vessel with small-scale facilities so as to cool heat discharged from the reactor vessel, a power production section including a small turbine and a small generator to generate electric energy using a fluid that receives heat from the external reactor vessel cooling section, a condensation heat exchange section 140 to perform a heat exchange of the fluid discharged after operating the small turbine, and condense the fluid to generate condensed water, and a condensed water storage section to collect therein the condensed water generated in the condensation heat exchange section, wherein the fluid is phase-changed into gas by the heat received from the reactor vessel. The external reactor vessel cooling and electric power generation system according to the present invention can continuously operate even during an accident as well as during a normal operation to cool the reactor vessel and produce emergency power, thereby enhancing system reliability. The external reactor vessel cooling and electric power generation system according to the present invention can easily apply safety class or seismic design using small-scale facilities, and its reliability can be improved owing to applying the safety class or seismic design.

An external reactor vessel cooling and electric power generation system according to the present invention includes an external reactor vessel cooling section formed to enclose at least part of a reactor vessel with small-scale facilities so as to cool heat discharged from the reactor vessel, a power production section including a small turbine and a small generator to generate electric energy using a fluid that receives heat from the external reactor vessel cooling section, a condensation heat exchange section 140 to perform a heat exchange of the fluid discharged after operating the small turbine, and condense the fluid to generate condensed water, and a condensed water storage section to collect therein the condensed water generated in the condensation heat exchange section, wherein the fluid is phase-changed into gas by the heat received from the reactor vessel. The external reactor vessel cooling and electric power generation system according to the present invention can continuously operate even during an accident as well as during a normal operation to cool the reactor vessel and produce emergency power, thereby enhancing system reliability. The external reactor vessel cooling and electric power generation system according to the present invention can easily apply safety class or seismic design using small-scale facilities, and its reliability can be improved owing to applying the safety class or seismic design.

A power generating and water purifying system. The system includes a closed loop power generator, a closed loop heat exchanger, and a closed loop water purifier. Hot brine water vapor travels from a reactor to a turbine, which generates electricity. The hot brine water vapor is then cooled by the closed loop heat exchanger and travels back to the reactor. The electricity powers generators. The electricity further powers an ammonia pump and a coolant compressor of the closed loop heat exchanger. Dirty water enters through a water inlet and is chilled by the closed loop heat exchanger. The water is then directed to a hot water accumulator, in which the water is heated by the closed loop heat exchanger. The water is vaporized by a hot plate and a UV light source. The distilled water is then cooled in a cooling tower and delivered to water tower as purified water.

A power generating and water purifying system. The system includes a closed loop power generator, a closed loop heat exchanger, and a closed loop water purifier. Hot brine water vapor travels from a reactor to a turbine, which generates electricity. The hot brine water vapor is then cooled by the closed loop heat exchanger and travels back to the reactor. The electricity powers generators. The electricity further powers an ammonia pump and a coolant compressor of the closed loop heat exchanger. Dirty water enters through a water inlet and is chilled by the closed loop heat exchanger. The water is then directed to a hot water accumulator, in which the water is heated by the closed loop heat exchanger. The water is vaporized by a hot plate and a UV light source. The distilled water is then cooled in a cooling tower and delivered to water tower as purified water.

Steam generators in power plants exchange energy from a primary medium to a secondary medium for energy extraction. Steam generators includes one or more primary conduits and one or more secondary conduits. The conduits do not intermix the mediums and may thus discriminate among different fluid sources and destinations. One conduit may boil feedwater while another reheats steam for use in lower and higher-pressure turbines, respectively. Valves and other selectors divert steam and/or water into the steam generator or to other turbines or the environment for load balancing and other operational characteristics. Conduits circulate around an interior perimeter of the steam generator immersed in the primary medium and may have different cross-sections, radii, and internal structures depending on contained. A water conduit may have less flow area and a tighter coil radius. A steam conduit may include a swirler and rivulet stopper to intermix water in any steam flow.

Steam generators in power plants exchange energy from a primary medium to a secondary medium for energy extraction. Steam generators includes one or more primary conduits and one or more secondary conduits. The conduits do not intermix the mediums and may thus discriminate among different fluid sources and destinations. One conduit may boil feedwater while another reheats steam for use in lower and higher-pressure turbines, respectively. Valves and other selectors divert steam and/or water into the steam generator or to other turbines or the environment for load balancing and other operational characteristics. Conduits circulate around an interior perimeter of the steam generator immersed in the primary medium and may have different cross-sections, radii, and internal structures depending on contained. A water conduit may have less flow area and a tighter coil radius. A steam conduit may include a swirler and rivulet stopper to intermix water in any steam flow.