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分析了常见煤矿企业的机电设备事故发生的原因,并提出相应的预防建议,以使大多数的机电设备事故得到有效控制,防止机电设备事故的不断发生。 相似文献
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在统计2012—2019年期间A煤矿事故数据的基础上,结合事故人员年龄、事故类型、伤情类别等研究了该煤矿事故的发生规律,并针对煤矿易发生的事故,本着预防为主、降低事故损失的原则,从安全管理、重点防控对象、应急处置能力提升方面提出了对策。 相似文献
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由于自然地质条件的复杂性和其它各种不确定性因素的影响,出现塌方事故可以说是隧道施工过程中一种常见的地质灾害.运用系统分析法事故树分析方法,综合考虑隧道塌方事故发生的全过程,建立了隧道塌方的事故树分析图,找出导致塌方事故发生的根本原因,并表达出系统内各基本事件之间及其与顶上事件之间的逻辑关系.通过对事故树的定性分析,找出了预防塌方事故的主要途径,为制定安全对策提供科学的依据,以达到预测与预防事故发生的目的. 相似文献
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35kV系统作为配电网的主干网,其运行状况直接关系到客户的用电安全。对一起35kV变电站发生的中性点空气间隙击穿事故,通过查阅事故发生时的天气状况,结合变电站单母线、单主变接线方式,进行了过电压仿真分析和计算。结果表明,发生事故的主要原因是35kV线路遭受雷击,雷电冲击侵入主变压器,导致中性点与A相接线排之间发生空隙放电。在总结这次事故教训的基础上,提出了防范此类事故的技术措施和建议。 相似文献
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曹颖 《中国锅炉压力容器安全》2010,(7):58-59
最近,某单位发生一起有机热载体锅炉介质泄漏事故,由于处理及时未酿成大的火灾和爆炸事故。事故发生后,笔者单位受企业委托对事故锅炉进行了检验和分析。 相似文献
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介绍了超超临界汽轮机在热态停机时发生抱轴事故的现场运行情况,通过分析故障工况下机组的动静间隙,得出事故发生的主要原因为轴封供汽参数未满足机组的运行要求,依此提出了防止事故发生的措施和建议,对同类型机组的运行维护具有一定的参考意义。 相似文献
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通过简要介绍神华宁煤集团磁窑堡煤业公司目前运行的锅炉,在使用过程中发生事故的案例,分析了事故主要原因,并提出了如何避免锅炉事故发生的方法及对策,对保证低压热水锅炉的安全生产运行具有十分重要意义。 相似文献
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本文介绍了一起电动单梁起重机运行脱轨坠落的事故案例,分析了造成事故的直接原因和间接原因,汇总了起重机运行啃轨故障的常见致因,提出了预防起重机坠落事故的管理手段和技术措施,对预防和减少同类事故具有鼍示意义。 相似文献
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《Energy Policy》2016
Recently, the estimation of accident costs within the social costs of nuclear power plants (NPPs) has garnered substantial interest. In particular, the risk aversion behavior of the public toward an NPP accident is considered an important factor when integrating risk aversion into NPP accident cost. In this study, an integrated framework for the external cost assessment of NPP accident that measures the value of statistical life (VSL) and the relative risk aversion (RRA) coefficient for NPP accident based on an individual-level survey is proposed. To derive the willingness to pay and the RRA coefficient for NPP accident risks, a survey was conducted on a sample of 1550 individuals in Korea. The estimation obtained a mean VSL of USD 2.78 million and an RRA coefficient of 1.315. Based on the estimation results in which various cost factors were considered, a multiplication factor of 5.16 and an external cost of NPP accidents of 4.39E−03 USD-cents/kW h were estimated. This study is expected to provide insight to energy policy decision-makers on analyzing the economic validity of NPP compared to other energy sources by reflecting the estimated external cost of NPP accident into the unit electricity generation cost of NPP. 相似文献
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以某公司汽轮发电机组的一次跳机事件为内容,介绍了在一起不常见的汽轮机进水事件的分析处理中,应用逆向推理法进行设备故障诊断的思考方法,以及故障处理情况。 相似文献
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《Energy Policy》2014
The Fukushima accident has influenced public attitudes toward energy sources and technologies, including not only nuclear energy, but also other energy sources. Therefore, it is worth investigating how the accident influenced public perceptions of renewable energy and its technologies, between the time before the accident and after the accident. This study aims to explore the effects of the Fukushima accident on the public perceptions of renewable energy technologies in South Korea, the closest nation to Japan. This study found that there were notable differences of public perceptions, including public attitudes, perceived benefits, trust, intention to use, knowledge and risks between before and after the earthquake. In addition, the perceived cost of renewable energy technologies was the primary determinant of the intention to use the technologies before the accident, whereas public attitudes toward the technologies became the main antecedents of the intention after the accident. After the accident, we found that there is a multi-dimensional matrix of perceived trust-benefits (with risks)-attitude-intention to use, in explaining the public acceptance of renewable energy technologies. Moreover, we found significant roles of the perceived trust, benefits and risks in the research model. Based on the empirical findings, both implications and suggestions are presented. 相似文献
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起重机是工业生产中的重要设备,统计表明起重机事故约占我国全部工业企业伤害事故的20%左右,且近几年仍层出不穷,基于此,本丈对将声发射在线监测方法引入到大型桥门式起重机检测的可行性进行了分析并对一台起重机进行了在线检测.结果表明:声发射应用于大型桥门式起重机的检测是可行的,能有效识别存在的危险缺陷的信号;桥门式起重机两端部的圆弧过渡处角焊缝属于应力集中区,是声发射检测时的重点监测部位。 相似文献
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叙述了盐城生物质发电有限公司系统故障引起全厂停电事故的基本情况,分析了事故原因,针对事故所暴露的问题,提出技术措施及防范措施。 相似文献
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《International Journal of Hydrogen Energy》2022,47(67):29162-29171
Hydrogen is becoming more popular as a fuel for vehicles. It is stored and dispensed at hydrogen refueling stations. Once the hydrogen in hydrogen refueling stations leaks, it easily forms a combustible cloud, and can explode by encountering a spark. It is therefore important for the safe and stable operation of hydrogen refueling stations to analyze the evolution of a leakage and explosion accident, clarify the causes and processes of the accident, and prevent the spread of risks. This paper proposes a model using multi-level variable weight fuzzy Petri net. On the basis of hierarchical consideration of the development of the accident, it adds a variable weight factor, which can quantify information in the development of the accident. According to the calculated results, the evolutionary path of risk and the most likely initial cause of the accident are deduced. Finally, taking the leakage and explosion accident of an urban hydrogen refueling station as an example, the usability and effectiveness of the model are verified. 相似文献