Passive containment cooling system for nuclear power plant

• Main Author: ZHANG ZHENG
• Format: Patent
• Language: Chinese; English
• Published: 24.10.2017
• Subjects: GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; NUCLEAR ENGINEERING; NUCLEAR PHYSICS; NUCLEAR REACTORS; PHYSICS; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

The invention discloses a passive containment cooling system for a nuclear power plant. The system comprises a shield building, a containment arranged in the shielding building and an air deflector arranged at the top of the shield building, wherein an air passage is formed between the shield building and the containment; and an air passage inlet is formed in the lower part of the shield building, and is communicated with the air passage through a running-through pipeline. Compared with the prior art, the system has the advantages that the weight of the air deflector can be remarkably reduced since the air passage inlet is formed in the lower part of the shield building, load of the containment can be reduced, and temperature and pressure of the containment can be quickly reduced. 本发明公开了种核电厂非能动安全壳冷却系统，包括：屏蔽厂房、设置在屏蔽厂房内的安全壳和安装在屏蔽厂房顶部的空气导流板，屏蔽厂房与安全壳之间形成空气流道，其中，屏蔽厂房的下部设置有空气流道入口，空气流道入口通过贯穿管道与空气流道连通。与现有技术相比，本发明核电厂非能动安全壳冷却系统通过将空气流道入口设置在屏蔽厂房的下部，能够明显减轻空气导流板的重量，并减轻安全壳的载荷，实现安全壳快速降温、降压。