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球形容器

球形容器的相关文献在1984年到2022年内共计204篇,主要集中在金属学与金属工艺、化学工业、机械、仪表工业 等领域,其中期刊论文142篇、会议论文18篇、专利文献158626篇;相关期刊93种,包括中小学实验与装备、解放军理工大学学报(自然科学版)、东北石油大学学报等; 相关会议16种,包括2014年中国计算力学大会、第七届全国压力容器学术会议、全国化工过程装备技术发展研讨会等;球形容器的相关文献由357位作者贡献,包括王仲仁、张士宏、董建令等。

球形容器—发文量

期刊论文>

论文:142 占比:0.09%

会议论文>

论文:18 占比:0.01%

专利文献>

论文:158626 占比:99.90%

总计:158786篇

球形容器—发文趋势图

球形容器

-研究学者

  • 王仲仁
  • 张士宏
  • 董建令
  • 刘小宁
  • 苑世剑
  • 刘兵
  • 刘岑
  • 张红卫
  • 袁小会
  • 殷德健
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 邹颖; 董冰岩; 查裕学; 殷平平
    • 摘要: 随着当今社会对H_(2)的依赖度上涨,发生H_(2)爆炸的危险性不断升高。为了解N_(2)和CO_(2)这2种惰性气体对H_(2)抑爆的效果,以H_(2)占比固定为40%的H_(2)/Air混合气体为例,在20L的爆炸球中进行2种惰性气体的抑爆实验,测试了爆炸过程中壁面处的爆炸压力及爆炸压力增长率随时间的变化,并计算了每次爆炸的爆炸指数K_(G)值。实验结果表明,N_(2)及CO_(2)均对H_(2)爆炸有很好的抑爆效果,随着加入惰性气体,各爆炸压力峰值呈现不断加速下降的变化;而各爆炸压力增长率峰值则呈现先较缓下降再加速下降,最后接近完全抑爆时又缓慢下降的变化。且对比2种惰性气体抑爆效果发现,CO_(2)的抑爆效果要好于N_(2),当加入相同体积分数的不同惰性气体时,加入CO_(2)的爆炸压力及压力增长率均要小于加入N_(2)的,且当N_(2)及CO_(2)占比分别达到62.5%和43.3%左右时爆炸基本被完全抑制。
    • 陈虹港; 李思源; 张玉福; 李祚成; 苗世得
    • 摘要: 采用Q345D钢制作了含凹坑球壳试件,在内压试验下测定试件失效的塑性最大压力和爆破压力,得到了含凹坑球壳试件失效的塑性最大载荷剩余强度系数试验值RSFmt.应用RSFmt检验了一种剩余强度系数计算方法.利用球壳和球面凹坑尺寸的参量α、g对剩余强度系数计算值进行拟合,建立了含球面凹坑球壳的剩余强度系数RSF(α,g)计算式和爆破压力计算式.提出了含凹坑球壳的安全判据和含表面缺陷球形容器的安全评定方法.
    • 崔洋洋; 王志荣; 钱承锦; 郑杨艳
    • 摘要: 为研究丝网结构对容器管道开口系统气体爆炸的影响,通过改变丝网结构的层数和目数,对连接有一段管道的球形容器进行实验.研究发现,当系统处于开口状态时,在管道处加入具有抑爆效果的丝网后,容器内最大泄爆压力增大,且最大泄爆压力随着丝网层数以及丝网目数的增加而增大.建立数学模型对容器内部最大泄爆压力进行拟合,通过拟合公式发现,丝网层数对容器管道开口系统气体爆炸时的最大泄爆压力有一定的影响,并且开始时最大泄爆压力随着丝网层数的增加而增加,随后丝网结构对最大泄爆压力的影响逐渐减小,最大泄爆压力趋于稳定.%To study the effect of a multi-layer wire mesh on gas explosion in spherical vessel connected to a pipe opening to atmosphere,experiments were conducted under different layers and meshes.The results show that the explosion intensity is enhanced in an open system while a wire mesh is added in pipe,and that the maximum explosion pressure increases with the increasing numbers of layer and mesh.A mathe-matical model was built by the method of curve fitting.The maximum explosion pressure was fitted ac-cording to the model.Fitting formula shows that a wire mesh with less layers has a positive effect on the maximum explosion pressure.However,the effect is weakened with the increase of the number of layers. When the number of layers is large enough,the maximum explosion pressure tends to be constant.
    • 刘闵婕; 朱子钦; 许粲羚; 范利武; 陆海; 俞自涛
    • 摘要: 为评估高导热填料对复合相变材料熔化传热过程的影响,采用实验方法定量分析典型球形容器中添加石墨纳米片的十二醇基复合相变材料的约束熔化传热过程.以熔化过程中的瞬时质量熔化率为比较对象,对石墨纳米片的质量分数和恒温加热边界条件进行参数化研究.实验结果表明,随着质量分数的增加,复合相变材料的熔化传热过程从以自然对流为主导逐渐转变为以导热为主导.在所研究的工况范围内,虽然复合相变材料的导热系数有一定程度的提高,但不足以弥补黏度增长所引起的自然对流削弱效应,反而使得熔化过程有所减缓.通过数据拟合得到了熔化率随傅里叶数、斯蒂芬数和格拉晓夫数等特征无量纲数变化的实验关联式,其预测结果的误差小于15%.
    • 刘岑; 袁小会; 刘兵; 张磊; 杨帆; 刘小宁
    • 摘要: 运用数理统计的假设检验理论,建立了有关因素对容器爆破压力计算公式精度影响的评价方法.基于52组钢制薄壁单层球形容器爆破压力实测数据,分析了材料屈强比对中径公式与福贝尔(Faupel)公式精度的影响.研究表明:对于材料屈强比为0.3362~0.6189且径比为1.109~1.257的单层球形容器,屈强比的变化对中径公式的精度没有显著影响;中径公式的集中度显著高于福贝尔公式.将屈强比范围调整为0.4498~0.6189且径比范围调整为1.114~1.257时,福贝尔公式的精度得到显著提高,且集中度显著高于中径公式.%To evaluate the relative factors affecting the accuracy of the vessel burst pressure calculation formula, we established an evaluation method by using the theory of statistical hypothesis testing. Based on the burst pres?sure measured data of 52 sets of spherical vessels with single-layer steel, the influences of materials yield ratio on the precision of Faupel formula and mid-diameter formula were analyzed. The study shows that the change of material yield ratio has no significant effect on the mid-diameter formula's accuracy, and the mid-diameter formula's concentration is higher than that of Faupel formula, for the spherical vessels with the materials yield ratios between 0.3362 and 0.6189, and the diameter ratios between 1.109 and 1.257. The Faupel formula's precision is significantly improved, and the Faupel formula's concentration is higher than that of the mid-diame?ter formula when the materials yield ratios were adjusted from 0.4498 to 0.6189, and the diameter ratios from1.114 to 1.257.
    • 刘小宁; 刘岑; 张红卫; 刘兵; 袁小会; 杨帆
    • 摘要: The evaluation indexes of burst pressure calculation precision for steel thin-walled spherical vessels were established.Four formulas including mid-diameter formula,Faupel formula and other two for-mulas proposed in the literature were focused.Values of evaluation indexes calculated according to these four formulas were compared,based on 55 groups of tested burst pressure values of spherical vessels.Re-sults indicate that:For multi-layer spherical vessels,the average value of accuracy (ratio of calculated val-ue to measured one)and the coefficient of variation both calculated according to the mid-diameter formula are 0.9770 and 0.0354 respectively,with the yield ratio of vessel materials ranging from 0.7209 to 0.8475,and the diameter ratio ranging from 1.053 to 1.107.For single-layer spherical vessels,the aver-age value of accuracy and the coefficient of variation both calculated according to the mid-diameter formu-la are 1.1853 and 0.0998 respectively,with the yield ratio of vessel materials ranging from 0.3362 to 0.5208,and the diameter ratio ranging from 1.109 to 1.257.Mid-diameter formula was found to be the one with highest accuracy,best stability and widest applicability among all these four formulas.%建立了钢制薄壁球形容器爆破压力计算公式精度的评价指标。基于55组球形容器爆破压力实测数据,计算并对比分析了中径公式、福贝尔公式以及相关文献提出的两种计算公式的精度指标数值。研究表明,对多层球形容器,当材料屈强比为0.7209~0.8475且容器径比为1.053~1.107时,中径公式准确度(计算值与实测值之比)平均值为0.9770,变异系数为0.0354;对单层球形容器,当材料屈强比为0.3362~0.5208且容器径比为1.109~1.257时,中径公式准确度平均值为1.1853,变异系数为0.0998。在4种球形容器爆破压力计算公式中,中径公式计算结果精度高、稳定性好且适用性广。
    • 马龙生; 王志荣; 朱明; 甄亚亚; 崔洋洋
    • 摘要: 为了研究球形容器泄爆及其外部伤害效应,利用小球容器和大球容器建立了2种尺寸的球形容器泄爆测试系统。在研究球形容器泄爆内部压力变化特性时,利用大、小球容器分别开展了无膜泄爆和泄爆片泄爆2种实验,得到了如下结论:当大、小球容器泄爆时,随着泄爆口直径的增加,最大泄爆压力减小,压力上升速率减小,正压持续时间减小;当无量纲化泄压比较小时,无膜泄爆峰值压力随泄压比的增大而减小,且呈线性变化。在研究球形容器泄爆外部伤害效应时,分别进行了大、小球容器压力伤害范围实验,获取了大、小球容器泄爆口周围空间不同位置处的压力峰值,并结合超压伤害阈值标准,判断其对人员的伤害作用,从而划定了压力伤害的范围。%The explosion venting experiment test system consisted of small spherical vessel and big spherical vessel was establised to study the spherical vessel explosion venting and its external damage effect.To study the pressure in the spherical vessel,unrestrained deflagration venting and constrained deflagration venting experiments were carried out by two sizes of spherical vessels.The conclusions are as follows:with the increase of the diameter of the venting port,the maximum explosion pressure decreases,and with the decreases of the pressure rise rate,the positive pressure duration decreases.When the dimensionless pressure relief ratio changes slightly,and the spherical vessel does not contain a rupture disk,the peak val-ue of the pressure decreases linearly with the increase of the pressure relief radio.In order to study the ex-ternal damage effect of the venting explosion,explosion venting experiments were carried out by two sizes of spherical vessels.The pressure at different locations of the space around the venting port of the big and small spherical vessels was measured.Combined with the overpressure damage threshold standard,the external damage effect on people was j udged and the scope of the inj ury of the pressure shock wave delimitted.
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