氢气喷射火特性教学实验设计  

Experimental Design of Hydrogen Jet Flame Characteristics Teaching Experiment

作　　者：朱建鲁[1] 范嘉涛 王赛磊 韩辉[1] 李玉星[1] ZHU Jianlu;FAN Jiatao;WANG Sailei;HAN Hui;LI Yuxing(National Virtual Simulation Experimental Teaching Center for Oil and Gas Storage and Transportation Engineering,China University of Petroleum(East China),Qingdao 266580,Shandong,China;State Grid Engineering Technology Innovation Co.,Ltd.,Tianjin 300450,China)

机构地区：[1]中国石油大学(华东)油气储运工程国家级虚拟仿真实验教学中心,山东青岛266580 [2]国家管网集团工程技术创新有限公司,天津300450

出　　处：《实验室研究与探索》2024年第10期164-168,共5页Research and Exploration In Laboratory

基　　金：中国石油大学(华东)研究生精品示范课建设项目(UPCYJP-2022-10);中国石油大学(华东)研究生课程思政示范课程建设项目(UPCYKS-2023-03)。

摘　　要：安全是氢气大规模使用的前提。为了研究氢气喷射火特性,自主搭建了喷射火实验系统,开展氢气喷射火特性实验研究。实验分析了氢气喷射火流量、火焰形状、中心温度及辐射场的变化随压力的变化规律。其中,对于火焰形状的分析,采用将图像转化为二值图的方法得出。结果表明,当压力降低16.95%时,火焰长度下降13.29%,火焰高度下降7.29%;压力保持1.02 MPa时,随着距离增加,中心温度平均减少70.10%;距离喷射口所在平面1.5 m处,辐射强度平均减少18.43%。通过氢气喷射火实验得出氢气意外泄漏下周围温度场、辐射场变化情况,可为实现氢气安全利用提供借鉴。Safety is a prerequisite for the large-scale use of hydrogen.In order to study the combustion characteristics of hydrogen jets,an experiment system for hydrogen jet combustion characteristics is independently built.The experiment analyzes the changes in hydrogen jet flow rate,flame shape,central temperature,and radiation field with pressure variations.For the analysis of flame shape,a method of converting images into binary images is used to obtain results.The results indicate that when the pressure decreases by 16.95%,the flame length decreases by 13.29%,and the flame height decreases by 7.29%.With the pressure maintained at 1.02 MPa,the central temperature decreases by an average of 70.10%as the distance increases.At a distance of 1.5 meters from the jet nozzle plane,the average radiation intensity decreases by 18.43%.In addition,through hydrogen jet combustion experiments,the changes in the surrounding temperature field and radiation field due to accidental hydrogen leakage have been determined,providing assurance for the safe utilization of hydrogen.

关 键 词：氢气 喷射火 实验设计 火焰形状 辐射强度 

分 类 号：G642.0[文化科学—高等教育学]