企业标准体系与企业其他管理体系的关系

建立企业标准体系是为了满足企业技术进步和市场竞争对标准的需要,适应企业生产、技术、经营和管理对标准的要求;是为了更有效地利用标准化手段为企业的生存、竞争和发展服务。通过对企业标准体系和其他管理体系的运行模式进行分析,来阐述企业标准体系与其他管理体系之间的相互关系,明确企业标准体系不是对企业其他管理体系的整合,而是对企业各类管理体系的文件整合。     

API Std 612—2003标准特点

对美国石油学会API Std612—2003标准的背景、新版标准的特点和与1995年版标准的主要变化进行介绍和分析。     

《摩托车和轻便摩托车发动机密封性能技术要求与试验方法》标准介绍

本文通过介绍标准制定目的和必要性、制定原则和依据以及标准的技术可行性，对标准中的技术内容进行充分的解释和说明。     

国外无损检测标准现状

概述世界上有重大影响的三大无损检测标准体系一美ASME、欧EN和ISO标准，及对我国无损检测标准也有一定影响的日JIS等标准的主要特点，凸现有关锅炉和压力容器焊接接头无损检测标准的最新亮点，旨在为我国重要标准的国际接轨献一孔之见。     

对柴油机试验的铁道行业标准的认识和说明

等同采用国际铁路联盟标准的柴油机认证试验标准自从 1983年发布以来 ,对铁路牵引用柴油机的研究、开发、生产、运用、试验、认证起到了重要作用。从标准的三个版本内容的变化、执行标准中遇到的问题以及对标准的认识和理解 ,发表了个人见解。     

基于国内外互连标准研究的储能站接入电力系统标准初探

通过对现有的国际、国内互连标准的整理和研究,总结出了互连标准内容的一般框架:范围、一般要求、人身安全和设备保护要求、电能质量要求、分布式电源接入电网的性能要求,并对不同国家并网标准的主要内容作了对比分析.结合这些研究结果和储能站并网运行的自身特点,对储能站接入电力系统标准的主要内容进行了初步探索,为以后制定储能站并网标准提供了有益参考.     

电力设备生产企业IS014001环境管理体系标准导入

结合大型电力设备生产企业自身特点,设计了导入ISO14001环境管理体系标准的模块和具体流程,对导入ISO14001环境管理体系标准进行战略规划,探讨了建立企业自身ISOI4001环境管理体系标准的方法,并对ISO14001环境管理体系标准的实施进行了详细说明和举列.结果表明,企业导入ISO14001环境管理体系标准能起到节能减排、保护环境、改善工艺、提高效益和提升国际竞争力等作用.     

渠首改造工程防洪标准的比较与确定

防洪标准的确定直接关系工程的规模,本文通过对影响防洪标准确定因素的分析研究,并结合宝鸡峡、魏家堡、洛惠渠三个渠首改造工程实例进行工程等级及防洪标准确定的分析论证,对渠首加固改造工程防洪标准和工程规模的确定提供思路。     

电化学储能产业发展对安全标准的需求

储能作为新型电力系统的关键组成,市场规模取得了快速增长。在储能产业发展的同时,国内外储能项目事故也在不断发生,大多数是锂离子电池储能事故,引起了社会对储能安全的关切。储能产业亟需明确储能安全标准要求,提升储能产品和项目建设的准入门槛,避免恶性事故再度发生。本工作回顾了近两年国内外储能项目事故情况,统计了事故发生时储能项目所处的状态和储能技术类型,从事故角度分析了相应阶段对储能安全标准的需求。对电力储能系统安全相关标准,本工作重点梳理了主要的IEC标准、美国标准和国内现有的国家标准、地方标准,简要分析了相关标准的要求和特点,最后从储能项目全生命周期的角度总结了设计建设、运输、运维、消防安全、应急救援和退役回收等各阶段储能安全标准有待进一步解决的问题,并对下一步相关工作的开展给出建议,以期推动国内相关标准的完善,为储能产业安全健康发展奠定基础。     

An comparative analysis for electrochemical energy storage system standards

基于电化学储能技术和产业发展,介绍并分析了国外和国内电化学储能系统标准的现状。针对国内外电化学储能系统现有的标准体系,提出了标准制定的需求以及制定标准的路线图,并对我国电化学储能系统标准未来的方向和标准制定提出了建议。     

Unerroric of control of mutual compliance of the efficiency of hydrogen engines of unmanned vehicles in the conditions of mass production

The issues related to the reliability of hydrogen engines of unmanned vehicles and increasing the efficiency of using hydrogen as fuel when using the method of its production during the decomposition of hydrogen-containing molecules of liquid-phase organic compounds in a plasma discharge under the action of intense ultrasonic exposure are considered. Experiments have shown that as a result of decomposition in the acoustoplasma discharge of liquid hydrocarbons, solid-phase carbon-containing products are formed, chemical transformations occur in the liquid phase and hydrogen-containing combustible gas is formed. Hydrogen-containing gas can be used as fuel immediately after synthesis, i.e. it does not require separation, since in addition to hydrogen it contains only impurities of CO₂ and water vapor. The purpose of the study is to formalize the basic conditions for tightening the control of mutual compliance with the efficiency of hydrogen engines of the same series in the conditions of their mass production. Methods of mathematical statistics and hardware-software modeling were used in the study. The term “unerroric of quality mutual compliance control” is introduced to describe a set of hardware and software tools for such control. The principle of in-depth testing of the technical condition of such engines of one series is described in a multidimensional formulation of the quality control problem for three of their operating parameters at once. The conditions for increasing the mutual correspondence of the measured values of such parameters in the conditions of serial production of hydrogen engines are formalized.     

小型锅炉烟尘测试时锅炉出力的计算

锅炉烟尘测试时,必须对锅炉出力进行测试。但监测中,许多小型锅炉往往不具备相关的计量装置和仪表,为解决这一问题,文章提出了用烟气量和空气过剩系数来计算锅炉的出力的公式,在实际使用中,该方法简单易行,其结果和实测值具有很好的一致怀。     

中国煤炭地下气化技术的发展

本文综述了煤炭地下汽化技术的国内外发展现状,对我国“长通道、大断面”煤炭地下气化新工艺给予了技术经济评述,并提出了发展煤炭地下汽化技术的政策建议。     

Review of theory of distortion and disintegration of liquid streams

Linear and nonlinear analyses of the instabilities and distortion of liquid streams injected into a gaseous media are discussed. The various fundamental mechanisms and the predictive capabilities for the distortions are emphasized. Round jets, planar sheets, annular sheets, and conical sheets are discussed in detail. The balance between capillary and inertial forces is primarily examined. The method for simplifying the analyses in the case of thin liquid sheets is discussed. The capabilities for representing the droplet size distribution that follows the stream disintegration are outlined.     

MgO膨胀剂细度对MgO水化和水泥浆体膨胀的影响

基于《水工混凝土掺用氧化镁技术规范》中的Ⅰ型氧化镁（MgO）,研究了该型MgO膨胀剂（MEA）细度对掺粉煤灰水泥浆体膨胀性能的影响。即采用X射线衍射分析(XRD)及同步热分析（TG DSC）分析了掺MEA水泥浆体中MgO的水化性。结果表明,养护温度相同时,MEA的细度对水泥浆体内MEA中MgO的水化和水泥浆体的膨胀无显著影响,产生的膨胀均能补偿水泥浆体的收缩;MEA的细度可从试验设计采用的45 μm筛筛余15%左右增加到30%左右,这将有利于MEA生产企业的节能降耗。     

机车车轮多轴疲劳强度安全评定的研究

使用ANSYS8.0软件对高速列车车轮进行了三维有限元分析,计算出车轮在直线、曲线和道岔条件下牵引、制动共6种工况时孔边薄弱部位的应力,分别通过Mises等效平均应力方法、Sines平均主应力方法和应力分量中考虑平均应力方法计算出应力在极值位置时的等效应力幅、等效平均应力,从而进一步算出车轮的安全系数,对其疲劳强度进行评定,并对3种方法进行了比较研究。     

Constructal optimization of the geometry of an array of micro-channels

This paper documents the geometric optimization of an array of circular and non-circular ducts. The optimization was carried out numerically using finite volume method. As optimal dimensions were independent of the array configuration, the numerical simulation was performed on a unit cell. Numerical optimization for circular, square and isosceles right triangle cross-sections of channels was performed. Based on the results of this investigation, some correlations were proposed to predict the optimal hydraulic diameter and dimensionless heat transfer per unit volume. In addition to examining the effect of pressure drop on these parameters, it was showed that among the different geometries of this study, square cross-section has the most efficiency for a given volume. The numerical results of the present study were compared with approximate results reported in the literature which a good agreement was observed.     

Heat of vaporization of mixtures

General expressions for the heat of vaporization of mixtures at constant pressure; at constant temperature; and at constant pressure, temperature, and composition are proposed. The last one is related to the liquid-vapor interface where steady vaporization or condensation is taking place. Numerical examples by the proposed expressions are shown for binary mixtures of HCFC22(R22) and (HCFC123(R123) © 1997 Scripta Technica, Inc. Heat Trans Jpn Res, 25(1): 12–24, 1996     

固体热辐射Yong性能分析

本文对漫灰均温物体在常物性条件下对外辐射传热的Ｙｏｎｇ值计算建立了数学模型。通过与物体内能Ｙｏｎｇ公式的数值计算比较,得出了辐射能量的Ｙｏｎｇ值不大于内能Ｙｏｎｇ值的结论。从初步的热射Ｙｏｎｇ值计算公式发现。Ｙｏｎｇ与物体表面辐射率有关。     

Measurements of concentration distribution of hydrogen jet using deflection of center of the laser spot

The main purpose of this work is to propose a new method to evaluate the concentration distribution of the hydrogen jet by using a He–Ne laser through the jet. This research attempts to apply the expression of concentration Gaussian distribution, the refraction formula of inhomogeneous refractive index medium, and the concentration inversion function to disclose the displacement of the center of the laser spot at different heights in the gas jet. The spot images of the laser beam passing through the gas jet at three vertical heights z = 10d, 20d, 30d, and different radial positions are obtained. The radial spatial asymmetry of the gas jet is also found in the experiment. Finally, the calculated concentration distribution curve and the fluent simulation curve, it is found that the two results are very similar. Our findings show that the error between the concentration distribution of this method and the simulated concentration distribution reaches 2.43%.