Emergency core cooling system (eccs) for nuclear reactor employing closed heat transfer pathways

A closed-path, nuclear reactor technology, applied in the field of nuclear reactors, can solve problems such as safety hazards, leakage of shell structures, etc.

Inactive Publication Date: 2013-06-19
THE BABCOCK & WILCOX CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such piping is a potential safety hazard since a rupture within the piping would cause a major leak from the enclosure structure

Method used

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  • Emergency core cooling system (eccs) for nuclear reactor employing closed heat transfer pathways
  • Emergency core cooling system (eccs) for nuclear reactor employing closed heat transfer pathways
  • Emergency core cooling system (eccs) for nuclear reactor employing closed heat transfer pathways

Examples

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Embodiment Construction

[0015] refer to figure 1 , an illustrative pressurized water reactor (PWR) type nuclear reactor 10 includes a pressure vessel 12 which in the illustrated embodiment is a cylindrical vertically mounted vessel. (Note that the term "cylindrical" as used herein need not be a mathematically exact cylinder, but rather allows for deviations such as diameter variations along the length of the cylinder axis, inclusion of vessel penetrations or other local features, etc.) A reactor core 14 is disposed within a lower portion of the pressure vessel 12 . (Note that the indicated figure 1 In , the reactor core 14 is exposed through a cutout 16 in the pressure vessel 12 . ) The reactor core 14 includes a substantial amount of fissile material, such as fission-rich 235 U isotope of uranium oxide (UO 2 )s material. In a typical configuration, the fissile material is placed in "fuel rods" within core baskets. The pressure vessel 12 contains the main cooling water (usually light water, i.e...

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PUM

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Abstract

A containment structure contains an interior volume, and a nuclear reactor is disposed in the interior volume. An ultimate heat sink pool is disposed outside of the containment structure. A condenser includes a plurality of closed-path heat pipes or closed-path thermosiphons having first ends and opposite second ends. The closed-path heat pipes or closed-path thermosiphons are embedded in the containment structure with the first ends protruding into the interior volume and the second ends protruding outside of the containment structure.

Description

technical field [0001] The following relates to the field of nuclear reactors, the field of nuclear power generation, the field of nuclear safety and related fields. Background technique [0002] Nuclear reactor safety centers on keeping the radioactive core submerged and removing sufficient heat. During normal operation, the reactor core is disposed within a sealed reactor pressure vessel that is filled (or mostly filled) with a primary coolant (eg, light water in the case of a light water reactor). Heat is removed by circulating the primary coolant through a "heat sink". In the case of nuclear power plants, the "heat sink" usually takes the form of a steam generator or turbine. In a conventional boiling water reactor (BWR), the primary coolant is converted to steam in a pressure vessel and piped out to directly drive a turbine, where the act of doing useful work on the turbine cools the steam. In a conventional pressurized water reactor (PWR), the primary coolant in the...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): G21C15/18
CPCG21C13/02G21C15/18G21C15/257G21C15/26G21D1/00G21D3/04Y02E30/00Y02E30/30
InventorB·E·宾汉姆
OwnerTHE BABCOCK & WILCOX CO