Query：
学者姓名：王金贵
Refining：
Year
Type
Indexed by
Source
Complex
Former Name
Co-
Language
Clean All
Abstract ：
为了氢气‑甲烷混合燃料的安全使用，利用内径和长度皆为300 mm的圆柱形密闭容器进行爆炸实验，研究了掺氢比（XH2=0~100%）和当量比（Φ=0.6~1.4）对火焰演化和爆炸压力特性的影响，并采用CHEMKIN软件分析了氢气‑甲烷‑空气预混气体的层流燃烧速度及其敏感性。结果表明，在当量比（Φ）不变的情况下，随着掺氢比（XH2）的增加，最大爆炸压力（pmax）、最大压力上升速率（（dp/dt）max）、爆炸指数（KG）以及层流燃烧速度增大，到达最大压力和最大压力上升速率的时间（tA和tB）逐渐缩短。点火后，火焰表面由最初的较为光滑，逐步形成蜂窝状的火焰胞格结构。在相同当量比（Φ）下，随着掺氢比（XH2）的增加，从点火到爆炸结束的时间大幅缩短，且在同一时刻，火焰半径增大，火焰表面皱褶增多。反应敏感性计算结果表明，基元反应H+O2⇌O+OH（R38）和H+CH3（+M）⇌CH4（+M）（R52）对层流燃烧速度的影响最大；关键自由基（H·、O·、OH·）的最大摩尔分数与层流燃烧速度正相关，且掺氢比（XH2）的增加，使得关键自由基的最大摩尔分数显著增大；基元反应R38和R84是影响关键自由基生成速率（ROP）的最主要反应。
Keyword ：
化学动力学分析 化学动力学分析 层流燃烧速度 层流燃烧速度 掺氢甲烷 掺氢甲烷 火焰 火焰 爆炸压力 爆炸压力
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 梅亮 , 郭进 , 黄时凯 et al. 密闭容器内氢气‑甲烷‑空气的爆炸特性 [J]. | 含能材料 , 2025 : 1-12 . |
| MLA | 梅亮 et al. "密闭容器内氢气‑甲烷‑空气的爆炸特性" . | 含能材料 (2025) : 1-12 . |
| APA | 梅亮 , 郭进 , 黄时凯 , 王金贵 , 高毅 . 密闭容器内氢气‑甲烷‑空气的爆炸特性 . | 含能材料 , 2025 , 1-12 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
The explosive properties of methane-ethane mixtures with different concentrations and ethane proportions (phi value) were studied in a 1 m(3) spherical vessel, along with the inhibitory effects of N-2 and CO2. The results indicate that when the concentration of the total gas mixture was 10%, P-max and (dp/dt)(max) first increased and then decreased with the increase of phi. In contrast, for total gas mixture concentrations of 8% and 12%, P-max and (dp/dt)(max) showed a single change. Under the test conditions of this experiment, P-max reached its maximum value when the total gas mixture concentration was 10% and phi = 0.1. The explosion suppression of gas mixtures showed that both N-2 and CO2 could significantly reduce P-max and (dp/dt)(max) when their volume fractions increased to 9%. While the continued addition of N-2 and CO2 did not significantly reduce P-max and (dp/dt)(max), it further delayed the arrival time of the peak, with a greater magnitude of delay for CO2. Regarding the flame propagation process, the same volume fraction of CO2 can reduce the flame propagation speed more effectively, and the bottom of the flame is more significantly affected by buoyancy instability.
Keyword ：
explosion pressure explosion pressure flame propagation flame propagation gas mixtures gas mixtures inert inhibitory gas inert inhibitory gas
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Wang, Jingui , Hu, Xingwang , Hu, Qiangqiang et al. Experimental study on the effects of N2 and CO2 inerting on methane-ethane-air deflagrations [J]. | PROCESS SAFETY PROGRESS , 2025 , 44 (2) : 279-294 . |
| MLA | Wang, Jingui et al. "Experimental study on the effects of N2 and CO2 inerting on methane-ethane-air deflagrations" . | PROCESS SAFETY PROGRESS 44 . 2 (2025) : 279-294 . |
| APA | Wang, Jingui , Hu, Xingwang , Hu, Qiangqiang , Liang, Zhixing , Zhang, Su . Experimental study on the effects of N2 and CO2 inerting on methane-ethane-air deflagrations . | PROCESS SAFETY PROGRESS , 2025 , 44 (2) , 279-294 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
To mitigate the damage caused by methane explosions, this paper conducts experiments on methane explosion suppression by CO2 and air (for comparison)-driven NaHCO3 powder using a 1 m3 spherical explosion test system. The results indicate that the explosion suppression effect was gradually enhanced with the increase of NaHCO3 powder concentration. Driven by air, as the concentration of NaHCO3 powder increases, the flame becomes darker and the propagation speed slows down. After adding 700 g/m3 NaHCO3 powder, methane cannot be ignited. The significant concentration range for explosion suppression efficiency is between 200 g/m3 and 500 g/m3. Driven by CO2, the flame evolves more slowly, the flame shape is more irregular, and the flame brightness is lower. Compared with air propulsion, the required NaHCO3 powder for complete explosion suppression is reduced by 100 g/m3, and the required NaHCO3 for related explosion suppression effects is reduced by 100 g/m3. The explosion suppression effect of CO2 driven NaHCO3 powder is superior to the sum of the suppression effects of high-pressure CO2 gas injection and air driven NaHCO3 powder. The explosion suppression effect of CO2 enables NaHCO3 powder to fully decompose and exert the best inhibitory effect; The CO2 generated by the decomposition of NaHCO3 can further enhance the suppression effect of CO2, and the two can thus produce a synergistic inhibitory effect.
Keyword ：
CO2 CO2 Explosion pressure Explosion pressure Explosion suppression mechanism Explosion suppression mechanism Methane explosion suppression Methane explosion suppression NaHCO3 powder NaHCO3 powder
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Wang, Jingui , Chen, Jianjun , Zhu, Hangqin et al. Experimental study on methane explosion suppression by CO2-driven NaHCO3 powder [J]. | FUEL , 2025 , 386 . |
| MLA | Wang, Jingui et al. "Experimental study on methane explosion suppression by CO2-driven NaHCO3 powder" . | FUEL 386 (2025) . |
| APA | Wang, Jingui , Chen, Jianjun , Zhu, Hangqin , Xue, Shaojun , Zhang, Su . Experimental study on methane explosion suppression by CO2-driven NaHCO3 powder . | FUEL , 2025 , 386 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
为精准预防实验室突发事故，提高高校实验室的应急能力非常重要。在研究高校实验室应急系统要素的基础上，文章从动态、静态两个角度构建高校实验室应急能力评价体系，通过组合赋权法对动静态评价指标赋予权重，并提出各指标的评价方法与评分依据。应用实践表明，基于该评价体系的评价结果，能够较为客观地反映高校实验室的应急能力。
Keyword ：
动态评价 动态评价 实验室 实验室 应急能力 应急能力 静态评价 静态评价
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 张苏 , 胡强强 , 王金贵 et al. 高校实验室应急能力动态和静态评价方法研究 [J]. | 化工高等教育 , 2025 , 42 (02) : 109-116 . |
| MLA | 张苏 et al. "高校实验室应急能力动态和静态评价方法研究" . | 化工高等教育 42 . 02 (2025) : 109-116 . |
| APA | 张苏 , 胡强强 , 王金贵 , 梁志星 . 高校实验室应急能力动态和静态评价方法研究 . | 化工高等教育 , 2025 , 42 (02) , 109-116 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
A crucial industry for improving society's sustainable development is the power sector. To address issues with the ineffectiveness of electric power emergency response during emergencies and the unclear division of duty among emergency subjects. A prefecture-level city power supply company to respond to the "In-Fa" typhoon, for example, to build a "1 + N" two-level emergency rapid response unit. Furthermore, it is proposed from the emergency response, emergency coordination, emergency material reserves, etc., to build a "full-chain" type of power emergency quick reaction system. Case studies have revealed that the quick response system's emergency combat capability, catastrophe preventive and mitigation capability, and emergency security capability have all improved. The construction of a "full-chain" type of power emergency rapid response system specialized and standardized the power emergency response system and provided a reference basis for the power industry's emergency response.
Keyword ：
Electric power system Electric power system Emergency quick response Emergency quick response Internal and external coordination Internal and external coordination Multi -linkage Multi -linkage Standardization Standardization
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Zhang, Su , Liu, Xiaolu , Wang, Jingui . Research on the construction of a "full-chain" rapid response system for power emergencies [J]. | HELIYON , 2024 , 10 (4) . |
| MLA | Zhang, Su et al. "Research on the construction of a "full-chain" rapid response system for power emergencies" . | HELIYON 10 . 4 (2024) . |
| APA | Zhang, Su , Liu, Xiaolu , Wang, Jingui . Research on the construction of a "full-chain" rapid response system for power emergencies . | HELIYON , 2024 , 10 (4) . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
以牡蛎壳粉部分替换传统水泥基材料,在实现牡蛎壳废物利用的同时可有效降低建材成本.利用牡蛎壳粉作为普通硅酸盐水泥掺合料,探讨其不同掺杂量及不同粉磨方式对水泥胶砂强度及安定性的影响,确定了牡蛎壳粉的适宜添加量,并用XRD、SEM及EDS等测试分析手段表征不同掺量下胶凝试块的结构及性能变化.实验结果表明,牡蛎壳的球磨方式对水泥胶砂强度有明显影响,掺加湿法球磨牡蛎壳粉的胶凝材料的强度高于相应的掺加干法球磨的样品.牡蛎壳粉的掺加量为5%时,试样的抗压强度和抗折强度分别达到49.2 MPa和7.55 MPa,显著高于未掺加的空白样品.通过安定性实验制得的试样经过预养、沸煮之后,表面均光滑、无裂纹,体积无明显膨胀或收缩,表明掺杂牡蛎壳粉的胶凝材料安定性良好.微观结构表征结果显示牡蛎壳粉在水泥胶凝材料中独立存在,主要起惰性填充作用.利用牡蛎壳微粉部分替代水泥基材料是可行的,既可以改善水泥基材料综合性能,又能节约材料成本、减少环境污染,具有良好的应用前景.
Keyword ：
安定性 安定性 抗压强度 抗压强度 抗折强度 抗折强度 牡蛎壳粉 牡蛎壳粉
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 钟彬扬 , 梁玉兰 , 陈志杰 et al. 牡蛎壳微粉改性水泥基复合材料性能及微观结构研究 [J]. | 无机盐工业 , 2024 , 56 (10) : 135-140 . |
| MLA | 钟彬扬 et al. "牡蛎壳微粉改性水泥基复合材料性能及微观结构研究" . | 无机盐工业 56 . 10 (2024) : 135-140 . |
| APA | 钟彬扬 , 梁玉兰 , 陈志杰 , 廖启华 , 王金贵 . 牡蛎壳微粉改性水泥基复合材料性能及微观结构研究 . | 无机盐工业 , 2024 , 56 (10) , 135-140 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
密闭容器内预混气体爆炸非常复杂,为研究点火位置对甲烷/空气预混气体爆炸特性的影响,在初始压力为101 kPa和初始温度为300 K的环境下,开展1 m3密闭球形爆炸容器中10 vol％甲烷浓度的中心点火爆炸实验,并使用Fluent数值模拟软件,采用LES湍流模型和Zimont燃烧模型,研究不同点火位置(中心点火、0.5R点火、R点火)对容器内甲烷/空气预混气体爆炸特性的影响,包括火焰结构演化、爆炸温度、爆炸压力、爆炸压力上升速率.结果表明:(1)在中心、0.5R和R处点火时,火焰分别向四周膨胀直至容器壁面、轮廓由最初的"左薄右厚"逐渐转变为"左侧凸起的尖角"和在壁面处从"圆弧形"逐渐拉伸转变成"尖形"向左侧发展;(2)不同点火位置下温度场存在温度梯度,升温规律均由点火中心能量持续向外释放,温度不断积聚升高;(3)不同点火位置下爆炸压力变化趋势基本一致,由于壁面绝热,最终最大爆炸压力均稳定在766 kPa左右;(4)中心点火时最大爆炸压力上升速率最大,较0.5R点火和R处点火分别增大了 94.5％和 141.8％.
Keyword ：
大涡模拟 大涡模拟 密闭球形容器 密闭球形容器 火焰前锋 火焰前锋 点火位置 点火位置 甲烷/空气预混气体 甲烷/空气预混气体
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 王金贵 , 梁志星 , 胡强强 et al. 点火位置对甲烷/空气预混爆炸特性影响的数值模拟研究 [J]. | 爆破 , 2024 , 41 (1) : 186-195 . |
| MLA | 王金贵 et al. "点火位置对甲烷/空气预混爆炸特性影响的数值模拟研究" . | 爆破 41 . 1 (2024) : 186-195 . |
| APA | 王金贵 , 梁志星 , 胡强强 , 朱杭钦 , 胡超 , 魏林慧 . 点火位置对甲烷/空气预混爆炸特性影响的数值模拟研究 . | 爆破 , 2024 , 41 (1) , 186-195 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Experiments were performed in a 90-L vessel with a side vent to investigate the effects of transverse concentration gradients on the vented explosion of non-uniform methane-air mixture. Controlled by a mass flow meter, methane was injected uniformly into the vessel through 18 nozzles that are evenly distributed at the top to configure a methane-air mixture with an average methane volume fraction of 10.9%. Various transverse con-centration gradients were obtained by altering the free diffusion time of the methane in the vessel. The deflagration flame was recorded through a high-speed camera at a frequency of 1000 Hz, and the internal overpressure at different locations was captured through three piezoelectric sensors. Experimental results reveal that larger concentration gradient resulted in lower flame propagation rate, longer time for the burst of the vent cover, and stronger pressure oscillations. Concentration gradient affects the typical flame structure, especially the formation and development of the tulip flame. Under the present experimental conditions, Helmholtz oscillations occurred in all tests. Concentration gradient has a negative correlation with the frequency of Helmholtz oscillations but a positive correlation with the duration of oscillations. In conclusion, the variation of concentration gradient obviously affects flame propagation and pressure evolution during vented explosions, which deserves more attention in the design of explosion protection.
Keyword ：
Helmholtz oscillation Helmholtz oscillation Methane-air mixture Methane-air mixture Transverse concentration gradient Transverse concentration gradient Vented explosion Vented explosion
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Wu, Jiahan , Wang, Jingui , Guo, Jin et al. Effects of transverse concentration gradients on the vented explosion of methane-air mixtures [J]. | JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES , 2023 , 86 . |
| MLA | Wu, Jiahan et al. "Effects of transverse concentration gradients on the vented explosion of methane-air mixtures" . | JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES 86 (2023) . |
| APA | Wu, Jiahan , Wang, Jingui , Guo, Jin , Zhang, Hanwen , Wang, Haozhe . Effects of transverse concentration gradients on the vented explosion of methane-air mixtures . | JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES , 2023 , 86 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
To investigate the effects of ignition position on the explosion of non-uniform methane-air mixtures, experiments were carried out in a closed pipe of 1 m length and 0.3m x 0.3 m cross-section. Methane is uniformly charged at the top of the pipe and then diffused freely, creating a concentration gradient. The concentration gradient of the methane-air mixture depends on the diffusion time. The effects of the three ignition positions - top (IP1), center (IP2) and bottom (IP3) - on the flame propagation at different ignition delay time (tig) were investigated. The ignition position and tig are the key factors influencing the success of ignition. For IP2 and IP3, the flame propagation velocity increases with the increase of tig, but the flame propagation velocity at IP1 does not change significantly with an increase in tig. When tig <= 25min, the temperature (Tmax) and maximum overpressure (Pmax) in the pipe at IP1 are significantly higher than those at IP2 and IP3. When the methane-air mixtures are nearly uniform, the Tmax and Pmax at different ignition locations are almost identical. The maximum pressure rise rate, (dP/dt)max, was affected by the flame pipe collision and different flame shapes caused by the ignition position.
Keyword ：
Concentration gradient Concentration gradient Explosion Explosion Flame Flame Ignition position Ignition position Methane Methane
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Zhang, Hanwen , Guo, Jin , Wang, Jingui et al. Effects of ignition position on the explosion of methane-air mixtures with concentration gradients [J]. | JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES , 2023 , 85 . |
| MLA | Zhang, Hanwen et al. "Effects of ignition position on the explosion of methane-air mixtures with concentration gradients" . | JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES 85 (2023) . |
| APA | Zhang, Hanwen , Guo, Jin , Wang, Jingui , Wu, Jiahan , Wang, Haozhe . Effects of ignition position on the explosion of methane-air mixtures with concentration gradients . | JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES , 2023 , 85 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
In this paper, the flame evolution and pressure dynamics of hydrogen-nitrogen-air explosions with nitrogen addition ratio (chi) ranging from 0 to 40 %, ignited at three different positions ("central", "back" or "front" with respect to the vent) in a vented cylindrical vessel, were experimentally studied. Experimental results reveal that the coupling effects of chi and ignition position significantly affect the pressure curves and flame behavior within and outside the vessel. The higher the chi, the smoother the internal flame captured by a high-speed schlieren system. When chi<30 %, the maximum reduced overpressure (P-max) at different ignitions decreases with increasing chi, and the central explosion yields the best suppression of P-max: when chi is increased from 0 to 30 %, P-max monotonically decreases from 232 kPa to 38 kPa. However, the differences in P-max among the three ignition positions become negligible when chi >= 30 %. The structure of the pressure peaks and the types of oscillations measured near the vent depend on the combinations of ignition location and chi. The formation of a shock wave generated by the external explosion and its effect on the internal pressure-time histories are described. In general, for a given ignition, the maximum external overpressure (Pe-max) decreases with chi is increased. The most pronounced decreasing trend of Pe-max is consistently observed in back explosions when chi ranging from 0 to 40 %. Furthermore, compared to other ignition positions, the highest P-max is always attained in central-ignition with chi<30 %; while the highest Pe-max is always attained in back-ignition with chi <= 30 %; as chi >= 10 %, both P-max and Pe-max recorded at front-ignitions are almost insensitive to chi.
Keyword ：
Explosion venting Explosion venting Hydrogen safety Hydrogen safety Nitrogen dilution Nitrogen dilution Overpressure Overpressure
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Zhang, Kai , Wang, Jingui , Guo, Jin et al. Experimental study of the coupling effects of ignition position and nitrogen inerting on vented hydrogen-air deflagrations [J]. | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY , 2023 , 50 : 1288-1295 . |
| MLA | Zhang, Kai et al. "Experimental study of the coupling effects of ignition position and nitrogen inerting on vented hydrogen-air deflagrations" . | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 50 (2023) : 1288-1295 . |
| APA | Zhang, Kai , Wang, Jingui , Guo, Jin , Du, Saifeng , Chen, Hao , Wang, Hongyan et al. Experimental study of the coupling effects of ignition position and nitrogen inerting on vented hydrogen-air deflagrations . | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY , 2023 , 50 , 1288-1295 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Export
| Results： |
Selected to |
| Format： |
