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Supercritical carbon dioxide circulation switchable vessel power system of lead-cooled fast reactor

A carbon dioxide and power system technology, applied in the field of ship power system, can solve problems such as limited lifting, low thermal efficiency, and large-scale equipment, and achieve the effects of high safety, improved system cycle efficiency, and small-scale equipment

Active Publication Date: 2020-11-17
SOUTHEAST UNIV
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Problems solved by technology

At present, the thermal efficiency of the pressurized water reactor combined with the steam cycle power plant commonly used by large ships is low (about 33%), and its further improvement is limited and the equipment scale is relatively large

Method used

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  • Supercritical carbon dioxide circulation switchable vessel power system of lead-cooled fast reactor

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Embodiment Construction

[0028] The present invention will be further described in detail below with reference to the embodiments.

[0029] like figure 1 As shown, the lead-cooled fast reactor supercritical carbon dioxide cycle switchable ship power system includes the lead-cooled fast reactor and its primary loop system composed of the reactor cabin I, the supercritical carbon dioxide power cycle secondary loop system composed of the engine room II and the propulsion device III .

[0030] The lead-cooled fast reactor and its primary loop system consist of a reactor compartment including a shielding shell 1, a lead-cooled fast neutron reactor 2, a reactor core 3, a primary intermediate heat exchanger 4 and a secondary intermediate heat exchanger 5; The high temperature sides of the intermediate heat exchanger 4 and the secondary intermediate heat exchanger 5 communicate with the core coolant passages. The supercritical carbon dioxide power cycle secondary loop system is coupled with the lead-cooled ...

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Abstract

The invention discloses a supercritical carbon dioxide circulation switchable vessel power system of a lead-cooled fast reactor. The supercritical carbon dioxide circulation switchable vessel power system comprises the lead-cooled fast reactor, a reactor cabin composed of a primary loop system of the lead-cooled fast reactor, a cabin composed of a switchable supercritical carbon dioxide power circulation secondary loop system and a propelling device. A lead-cooled fast neutron reactor is adopted as a heat source, and ship propulsion power and equipment electric power are output in a supercritical carbon dioxide power cycle mode combining primary reheating, intermediate cooling compression and shunt recompression processes. Effective switching of supercritical carbon dioxide circulation ofan inner cooling mode and a partial cooling mode under different operation requirements is achieved through gate valve opening and closing operation, and the direct propelling device is combined to drive the vessel to sail. The energy conversion efficiency is remarkably improved, the compactness of the power device and the effective load of the vessel are greatly improved, low-energy-consumption and high-performance operation of the vessel is satisfied; according to the invention, a new thought is provided for application of supercritical carbon dioxide circulation in the field of nuclear power vessels.

Description

technical field [0001] The invention relates to a ship power system, in particular to a lead-cooled fast reactor supercritical carbon dioxide cycle switchable ship power system. Background technique [0002] The equipment research and development and technological upgrading of the power system of large ships is the top priority of coastal defense development, and the use of nuclear reactors to provide power is a clear development direction in the future. At present, the power plant of the pressurized water reactor combined with the steam cycle commonly used in large ships has a low thermal efficiency (about 33%), and its further improvement is limited and the equipment scale is large. Therefore, the active development of high-efficiency and compact new power units is of great significance for improving the overall performance of ships and leading technological changes. SUMMARY OF THE INVENTION [0003] Purpose of the invention: The purpose of the present invention is to p...

Claims

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Application Information

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IPC IPC(8): G21D5/08G21C1/02B63H21/18F01D15/10F01K7/32F01K25/10
CPCG21D5/08G21C1/02B63H21/18F01D15/10F01K7/32F01K25/103Y02T70/50
Inventor 邵应娟石明珠钟文琪
Owner SOUTHEAST UNIV
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