A hydrogen mixed gas explosion source item estimation method for a high-level waste liquid storage tank

A technology of high-level radioactive waste liquid and mixed gas, which is applied in the direction of material explosion, force/torque/power measuring instrument, measuring device, etc., and can solve problems such as high heating rate, strong radioactive toxicity, and high corrosiveness

Active Publication Date: 2019-02-26
CHINA INST FOR RADIATION PROTECTION
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Problems solved by technology

[0002] Due to the high-level waste liquid has many special dangerous properties, such as: strong radioactivity, high toxicity, nuclides with a long half-life, high heating rate, high corrosion, etc.

Method used

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  • A hydrogen mixed gas explosion source item estimation method for a high-level waste liquid storage tank
  • A hydrogen mixed gas explosion source item estimation method for a high-level waste liquid storage tank
  • A hydrogen mixed gas explosion source item estimation method for a high-level waste liquid storage tank

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Embodiment Construction

[0076] The present invention will be described in detail below in conjunction with the examples.

[0077] The invention provides a method for estimating the explosion source item of hydrogen mixed gas in a high-level radioactive waste liquid storage tank, which solves the problem of estimating radioactive substances released into the environment under the hydrogen accident of the high-level radioactive waste liquid storage tank. Such as figure 1 As shown, the estimation method of the present invention consists of four parts, namely: calculation of hydrogen gas generation rate, calculation of hydrogen gas mixture explosion limit, calculation of explosion energy and calculation of airborne radioactive material release environment source item.

[0078] 1. Calculation of hydrogen production rate

[0079] Hydrogen in high-level liquid waste storage tanks is produced by the following three mechanisms: radiolysis, pyrolysis, and corrosion. The method for estimating the hydrogen gen...

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Abstract

A hydrogen mixed gas explosion source item estimation method for a high-level waste liquid storage tank is provided. The method includes calculating the hydrogen generation rate of a high-level wasteliquid storage tank; calculating the explosion limit of mixed gas of hydrogen, nitrogen monoxide and nitrogen; calculating the energy for explosion of the high-level waste liquid storage tank; and calculating release environment source items of airborne radioactive materials after an explosion event. The method is suitable for accident consequence assessment of reprocessing plants and protection against accidents of reprocessing plants, provides technical supports for emergency action level preparation of the reprocessing plants and has important economic value and social value.

Description

technical field [0001] The invention belongs to the disposal technology of radioactive waste, and in particular relates to a method for estimating the explosion source item of a hydrogen gas mixture gas in a storage tank for high-level radioactive waste liquid. Background technique [0002] Due to the high-level waste liquid has many special dangerous properties, such as: strong radioactivity, high toxicity, nuclides with a long half-life, high heat generation rate, and high corrosiveness. Therefore, the safety of storage tanks for high-level radioactive liquid waste is a hot issue in the world. [0003] Before 1957, there was a serious accident in Kyshtym, South Ural, Soviet Union, where a storage tank of high-level radioactive waste liquid exploded. 4 ~2.3×10 4 km 2 , withdrew 27,000 people. The collective dose received by the evacuated residents was about 1.3×10 3 person·Sv, the collective dose received by the remaining residents is about 1.2×10 3 People Sv. The co...

Claims

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Application Information

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IPC IPC(8): G01N25/54G01L5/00
CPCG01L5/0052G01N25/54
Inventor 徐潇潇冯宗洋杨亚鹏贾林胜张建岗王任泽王宁
Owner CHINA INST FOR RADIATION PROTECTION
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