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Containment filtering and discharging system capable of efficiently removing organic iodine

A discharge system and containment technology, applied in radioactive purification, climate sustainability, nuclear power generation, etc., can solve problems such as the inability to remove organic iodine, and achieve the effects of reducing construction costs, high-efficiency filtration, and reducing equipment volume

Active Publication Date: 2018-05-11
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a containment filtration and discharge system that can efficiently remove organic iodine to meet the filtration requirements of radioactive organic iodine in severe accidents, to overcome the defects and insufficiencies of the existing containment filtration and discharge system that cannot remove organic iodine

Method used

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  • Containment filtering and discharging system capable of efficiently removing organic iodine
  • Containment filtering and discharging system capable of efficiently removing organic iodine
  • Containment filtering and discharging system capable of efficiently removing organic iodine

Examples

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Effect test

Embodiment 1

[0032] A containment filtration and discharge system capable of efficiently removing organic iodine, comprising a containment vessel 1, a penetration assembly, a containment isolation valve assembly, a burst membrane 4, a water washing filter 5, a metal fiber filter 6, and a spiral tube preheater 7. Silver zeolite filter 8, restricting orifice plate 9, burst membrane 2 10 and radioactive monitor 11;

[0033] The inlet pipeline of the containment filtration and discharge system penetrates into the containment 1 through the penetration component, and a containment isolation valve assembly is installed on the inlet pipeline; there are two parallel passages between the inlet pipeline and the inlet of the water washing filter, respectively active channel and passive channel, the containment isolation valve assembly is installed on the active channel, and a bursting disc-4 is installed on the passive channel; the inlet of the water-washing filter 5 is connected to external equipment ...

Embodiment 2

[0044] Such as figure 1 As shown, a containment filtration and discharge system for highly efficient removal of organic iodine consists of water-washed filters, metal fiber filters, spiral tube preheaters, silver zeolite filters, and corresponding pipeline valves.

[0045] The inlet pipeline of the containment filtration and discharge system penetrates into the containment 1 through the penetration piece 2, and a containment isolation valve 3 is installed on the inlet pipeline to isolate the containment 1 from the containment filtration and discharge system. There are two parallel passages between the isolation valve of the containment vessel and the inlet of the water wash filter, which are the active passage and the passive passage respectively. An isolation valve 3 is set on the active channel, and a rupture disc 4 is set on the passive channel. The inlet of the water washing filter 5 is connected with external equipment through a flange. The outlet of the water washing f...

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Abstract

The invention discloses a containment filtering and discharging system capable of efficiently removing organic iodine, and belongs to the technical field of reactor safety facilities. The containmentfiltering and discharging system comprises a containment, a penetration assembly, a containment isolating valve assembly, a rupture disk assembly, a water washing filter, a metal fiber filter, a spiral pipe preheater, a silver-zeolite filter, a restriction orifice and a radioactivity monitor 11. A series connection structure is adopted in the system, and the design mode that the silver-zeolite filter is arranged in the containment is utilized, so that the phenomenon that steam is condensed in silver zeolite is avoided; due to the structural design of multi-stage water separation and gas preheating, it is ensured that discharged gas has been in an overheating state before entering the silver zeolite, and the filtering efficiency of the organic iodine is improved; in the containment filtering and discharging system, the mode that the steam is overheated through significant throttling and pressure reduction is avoided, accordingly, it can be ensured that the filtering and discharging system run at a high pressure, and at the same face velocity, the consumption of silver-zeolite molecular sieves is greatly reduced. Therefore, the device size is reduced, and the building cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of reactor safety facilities, in particular to a containment filter discharge system capable of efficiently removing organic iodine. Background technique [0002] When a serious accident occurs in the reactor, a large amount of coolant is sprayed into the containment vessel. Due to the low pressure in the containment vessel, the superheated coolant is quickly vaporized into steam. At the same time, the molten core melts through the pressure vessel and falls into the pile pit, and the molten core reacts with the concrete floor to produce a large amount of non-condensable gas. The accumulation of steam generated by the vaporization of these non-condensable gases and coolants in the containment will cause the temperature and pressure of the containment to increase, which may eventually cause the internal pressure of the containment to exceed its pressure limit, and the integrity of the containment will be damag...

Claims

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Application Information

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IPC IPC(8): G21C13/10G21C13/02G21F9/02
CPCG21C13/022G21C13/10G21F9/02Y02E30/30
Inventor 谷海峰孙中宁周艳民曹夏昕阎昌琪
Owner HARBIN ENG UNIV
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