检修期间核电安全壳内挥发性有机化学品的挥发特性研究

翁文庆 1; 杨鸿辉 2; 李剑波 1; 石博方 2; 姬亚军 2; 胡程镇 1; 延卫 2

doi:10.7652/xjtuxb202008020

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检修期间核电安全壳内挥发性有机化学品的挥发特性研究

更新时间：2025-07-09

- 检修期间核电安全壳内挥发性有机化学品的挥发特性研究
- Determination and Evaluation of Volatili-ation Rate and Time Period of Organic Compounds in Nuclear Power Containment During Maintenance
- 西安交通大学学报 2020年54卷第8期页码：157-162
- 作者机构：
  
  中广核研究院有限公司,广东,深圳,518000
- 作者简介：
- 基金信息：
  
  : 2020-02-18。作者简介: 翁文庆(1981—),男,高级工程师;杨鸿辉(通信作者),男,副教授。基金项目: 陕西省重点研发计划资助项目(2018SF-372)
- DOI：10.7652/xjtuxb202008020
  中图分类号： O643.32
- 网络首发：2020-08-10，
  
  纸质出版：2020
- 稿件说明：
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翁文庆 1, 杨鸿辉 2, 李剑波 1, 等. 检修期间核电安全壳内挥发性有机化学品的挥发特性研究[J]. 西安交通大学学报, 2020,54(8):157-162.

Determination and Evaluation of Volatili-ation Rate and Time Period of Organic Compounds in Nuclear Power Containment During Maintenance[J]. 2020, 54(8): 157-162.
翁文庆 1, 杨鸿辉 2, 李剑波 1, 等. 检修期间核电安全壳内挥发性有机化学品的挥发特性研究[J]. 西安交通大学学报, 2020,54(8):157-162. DOI： 10.7652/xjtuxb202008020.

Determination and Evaluation of Volatili-ation Rate and Time Period of Organic Compounds in Nuclear Power Containment During Maintenance[J]. 2020, 54(8): 157-162. DOI： 10.7652/xjtuxb202008020.

摘要

针对核电安全壳内检修期间挥发性有机化学品挥发量及挥发特性不明确

由此可能带来火灾隐患的问题

使用一种密闭空间内有机化学品挥发动力学在线检测系统

对其中具有较高挥发性的有机化学品的挥发组分进行了定性和定量测定。测试了6种挥发性有机化学品

获得了化学品的挥发动力学曲线及拟合方程

并通过计算获得了其挥发速率方程。以检修期间化学品使用厚度为0.5 mm为例

以挥发时间t=1 h和t=2 h时的挥发速率对该6种化学品完全挥发时间进行了计算

结果表明:用量最大的威第尔清洗剂的挥发时间分别达到23.46 h(挥发速率r(t=1 h)

40 ℃)及33.31 h(r(t=2 h)

40 ℃)

实测挥发时间为27.4 h; 螺栓清洗剂的挥发时间分别达到49.59 h(r(t=1 h)

40 ℃)和69.43 h(r(t=2 h)

40 ℃)

实测的挥发时间为60.0 h; 以最大挥发时间计

有望显著缩短安全壳打压前的通风时间。研究结果对于缩短检修时间、提高机组运行效率具有重要指导意义。

Abstract

It is difficult to dynamically determine the concentrations of volatile organic compounds(VOCs)in atmosphere of nuclear power containment

leading to a difficulty for evaluating the consequent fire disaster risk during pressure test. Six VOCs were tested qualitatively and quantitatively using an online system to obtain their dynamical volatili-ation curves and corresponding equations were fitted

and the volatili-ation rate equations were further numerically obtained. Setting 0.5 mm liquid membrane of each chemical during test

the volatili-ation periods of each chemical were calculated according to the volatili-ation rates determined in the volatili-ation rate at time 1 h and 2 h. The results suggest that as the most abundant chemical

Weidil cleaner takes23.46 h(r(t=1 h)

40 -)and33.31 h(r(t=2 h)

40 -)for volatili-ation according to the calculated results

and the tested volatili-ation period reaches 27.40 h; for screw cleaner

the calculated volatili-ation periods are49.59 h(r(t=

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references

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