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      |本期目錄/Table of Contents|

      [1]翁文慶,張可,王定義,等.核電站安全殼打壓試驗中可燃物爆炸下限的實驗研究[J].西安交通大學學報,2019,53(09):176-182.[doi:10.7652/xjtuxb201909023]
       WENG Wenqing,ZHANG Ke,WANG Dingyi,et al.Experimental Research on Lower Flammability Limits of the Combustible Vapors in Containment Test[J].Journal of Xi'an Jiaotong University,2019,53(09):176-182.[doi:10.7652/xjtuxb201909023]
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      核電站安全殼打壓試驗中可燃物爆炸下限的實驗研究(PDF)

      《西安交通大學學報》[ISSN:0253-987X/CN:61-1069/T]

      卷:
      53
      期數:
      2019年第09期
      頁碼:
      176-182
      欄目:
      出版日期:
      2019-09-10

      文章信息/Info

      Title:
      Experimental Research on Lower Flammability Limits of the Combustible Vapors in Containment Test
      作者:
      翁文慶1 張可2 王定義3 符文2 孫江楓1
      1.中廣核研究院有限公司, 518000, 廣東深圳; 2.西安交通大學能源與動力工程學院, 710049, 西安; 3.中廣核核電運營有限公司, 518000, 廣東深圳
      Author(s):
      WENG Wenqing1 ZHANG Ke2 WANG Dingyi3 FU Wen2 SUN Jiangfeng1
      1.China Nuclear Power Technology Research Institute Co.Ltd., Shenzhen, Guangdong 518000, China; 2.School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China; 3.China Nuclear Power Operations Co.Ltd., Shenzhen, Guangdong 518000, China
      關鍵詞:
      核電站 打壓試驗 爆炸極限 閃點
      Keywords:
      nuclear power plant containment test lower flammability limit flash point
      分類號:
      O643.2
      DOI:
      10.7652/xjtuxb201909023
      摘要:
      為了研究縮短核電站安全殼完整性試驗和泄漏率試驗工期的可行性,對安全殼打壓試驗過程中所使用的化學品的揮發性測試結果進行了研究和分析,篩選出25種可燃性物質,在60 ℃或略高于可燃物閃點的初始溫度下,對其在100、310和520 kPa的初始壓力條件下的爆炸下限進行了實驗研究,獲得了重要的安全性實驗數據。實驗結果表明,對于低閃點的可燃性液體,其在不同初始壓力下的爆炸下限幾乎相同; 對于閃點較高的可燃性液體,當初始壓力較高時,由于可燃蒸氣的液化,出現不能被點燃的現象,有利于安全殼打壓過程中危險性的降低; 針對11種初始壓力升高后出現不可燃現象的物質,提出了一種其在所測試的初始溫度下可以被點燃的最大初始壓力的估算方法,可為完整性試驗和泄漏率試驗過程中的安全性分析提供理論依據,以縮短試驗工期。
      Abstract:
      To shorten the processing period during containment test in nuclear power plant, a feasibility study was carried out.Firstly, the volatility test results of the chemicals used during containment test were analyzed, and 25 combustible substances were screened out.Then, the lower flammability limits of the 25 substances were tested at the temperature of 60 ℃ or a little above their flash points, under the pressures of 100, 310 and 520 kPa, respectively.The results indicate that the lower flammability limits of the liquids with low flash points are almost the same at different initial pressures.For the liquids with high flash points, there appears a phenomenon that their vapors cannot be ignited due to partial liquefaction of the combustible vapors at high pressures, which is favourable to reduction of flaming risk during containment test.Finally, for the 11 substances which will become nonflammable when the pressure reaches a certain value, a method was proposed to estimate the maximum pressure at which their vapors can be ignited.This estimation method provides a theoretical basis for the safety analysis during containment test procedure.

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      備注/Memo

      備注/Memo:
      收稿日期: 2019-03-16。作者簡介: 翁文慶(1981—),男,碩士,高級工程師; 張可(通信作者),男,高級工程師;痦椖: 國家自然科學基金資助項目(51676159); 中央高;究蒲袠I務費專項資金資助項目(XJJ2017115)。
      更新日期/Last Update: 2019-09-04
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