Nuclear island water intake and drainage redundancy protection system for nuclear energy floating platform

Abstract

The invention discloses a nuclear island water intake and drainage redundancy protection system for a nuclear energy floating platform. The system comprises a low-position seawater inlet valve box, ahigh-position seawater inlet valve box, a nuclear island cold source header pipe, a heat exchange water supply branch system and a water drainage valve box; wherein the low-position seawater inlet valve box is arranged at the inner bottom of the floating platform, the high-position seawater inlet valve box is arranged at the broadside part of the floating platform, and the low-position seawater inlet valve box and the high-position seawater inlet valve box are respectively communicated with a nuclear island cold source header pipe through water inlet pipelines; the heat exchange water supply branch system comprises a seawater filter and a seawater pump, and the nuclear island cold source header pipe, the seawater filter, the seawater pump, the equipment cooling water heat exchanger and thedrain valve box are sequentially communicated. The system has the advantages that triple redundancy protection is provided for the nuclear island water intake and drainage system, continuous supply of cold source seawater of a nuclear reactor primary loop system and an auxiliary system of the nuclear reactor primary loop system under normal working conditions and emergency conditions is guaranteed, and safety, redundancy and reliability of the nuclear island water intake and drainage system are greatly improved.

Description

technical field [0001] The invention relates to a related design technology of an offshore floating nuclear energy supply platform, in particular to a redundant protection system for intake and drainage of a nuclear island of a nuclear energy floating platform. Background technique [0002] With the rapid development of my country's economy, especially the rapid economic development of coastal areas, the demand for electricity has increased significantly. In order to meet the power demand in coastal economically developed areas, and with the gradual deepening of marine economic development, the demand for offshore energy bases has emerged. The offshore floating nuclear energy supply platform has become the first choice for economically developed coastal areas due to its high power density, long fuel life, safety and economy, multi-purpose, clean and pollution-free features. Offshore floating nuclear energy supply platforms can not only save land space, but also provide powe...

AI Technical Summary

Problems solved by technology

Due to its functionality, safety and sea environment, the offshore floating nuclear energy supply platform cannot complete the design of the intake and drainage system of the platform using land-use power stations or conventional ships. At present, land-use nuclear power plants and conventional The design scheme of the intake and drainage system or the circulating water system of the steam ship cannot meet the requirements of continuous, reliable and stable operation of the nuclear island intake and drainage system of the floating nuclear energy supply platform in the ocean conditions (undulations, swings, inclinations) and shoal navigation areas (sea water The design of the position of the valve box will play an important role in the stable operation of the intake and drainage system), as well as the safety of the core in the event of a nuclear emergency

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