Integrated containment filtrate exhaust system

A discharge system and filtration system technology, which is applied in radioactive purification, greenhouse gas reduction, nuclear power generation, etc., can solve problems such as silver zeolite failure, achieve space saving, simple structure, and solve the effects of moisture absorption failure

Active Publication Date: 2017-10-10
HARBIN ENG UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide an integrated containment

Method used

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  • Integrated containment filtrate exhaust system
  • Integrated containment filtrate exhaust system
  • Integrated containment filtrate exhaust system

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Embodiment Construction

[0021] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0022] combine Figure 1-3 , the present invention is mainly composed of wet filter system 1.1, metal fiber filter system 1.2, silver zeolite filter system 1.3 and system pressure boundary 1.4.

[0023] The wet filtration system 1.1 includes a jet gas discharge tube bundle assembly 1.11, a static mixing assembly 1.12, a cylindrical liner 1.14 and a chemical washing solution 1.13. The jet-type gas discharge tube bundle assembly 1.11 is a gas discharge channel composed of a series of parallel tube bundles. The outlet of the tube bundle is immersed in the chemical solution 1.13. When the system is put into operation, the exhaust gas from the containment passes through the annular preheating channel 1.34 and exhaust The gas main pipe 1.42 is discharged into the chemical solution 1.13 from the outlet of the tube bundle. The number and diameter of the gas discharge tu...

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Abstract

The invention aims to provide an integrated containment filtrate exhaust system. A wet filter system serves as a primary filter and mainly comprises a jet-type bubble generation system and a static mixing assembly, and most of radioactive aerosol and molecular iodine in airflow can be removed in a washing manner; gases subjected to wet filtering are subjected to secondary filtration in a metal fiber filter, so that aerosol with a small particle size and entrained liquid drops are removed; and finally the gases enter a silver zeolite filter to remove radioactive methyl iodide gases in the gases. The silver zeolite filtering system is preheated and insulated by utilizing energy of the exhausted gases, and by utilizing a change relationship of the exhaust gas temperature along with pressure, a phenomenon that water vapor is not condensed after the mixed gas enters the silver zeolite filter is ensured, and high filtering efficiency of the methyl iodide gases is ensured. The integrated containment filtrate exhaust system disclosed by the invention has stable high filtering efficiency on radioactive substance, particularly the filtering efficiency of gaseous methyl iodide gases is improved, and the system is compact in structure and low in requirement on space.

Description

technical field [0001] The invention relates to a nuclear power plant accident treatment device, in particular to a safety vessel overpressure protection and radioactive substance retention treatment device. Background technique [0002] As the world's energy shortage and environmental pollution become more and more serious, people pay more and more attention to new clean energy. Among them, nuclear power, as a clean and efficient energy, has been widely used all over the world. In order to prevent radioactive leakage, nuclear power plants have three safety barriers, of which the nuclear power plant containment is the last safety barrier to prevent the release of radioactive products to the environment. After the Fukushima accident in Japan, the issue of containment overpressure in the late stages of severe accidents in nuclear power plants has received widespread attention. , the molten core will also react with the bottom concrete to continuously generate non-condensable ...

Claims

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Application Information

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IPC IPC(8): G21C9/004G21F9/02G21C13/10
CPCG21C9/004G21C13/10G21F9/02Y02E30/30
Inventor 周艳民曹夏昕王晨温济铭孙中宁谷海峰阎昌琪
Owner HARBIN ENG UNIV
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