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1.
高压油顶起装置作为电机配套设备的重要组成部分,高压油顶起系统的设计与安装水平在很大程度上决定了电机的运行质量。本文阐述了高压油顶起装置的操作系统、工作流程,分析了机组运行过程中存在的故障表现,对引起故障的原因以及影响因素进行了分析,提出了有针对性的高压油顶起系统的改造设计与实现策略。  相似文献   

2.
王佳卉 《商》2013,(3):293-293
在建筑工程项目建设过程中,电气仪表的安装与调试将会影响到以后建筑的应用。特别是在当前电力与电子技术高速发展的今天,各种复杂的新型工艺被相继引入到电气设备中,为保证电气设备在生产工艺中的正常运行和使用,在工程建设初期就需要对电气仪表工程进行安装和调试,同时与建筑工程项目的设计及具体的应用相结合,电气仪表工程的安装与调试工作才能够满足日常的应用与需求。本篇论文先简单介绍了电气仪表工程安装与调试的注意事项和特点,同时又探讨分析了电气仪表工程安装和调试中常见的问题,并针对问题给出相应的解决方案,以此减少和避免电气仪表工程安装和调试工作中的安全事故、经济损失以及人身伤害。  相似文献   

3.
徐军峰 《商》2014,(49):298-298
社会不断向前发展,建筑行业也随之出现很多变化,在建筑设备安装工程当中,电动机的安装调试具有非常重要的作用,在某种程度上和建筑机电一体化设备安装水准有重要关联。本文研究了在建筑机电一体化设备安装中主要设备的安装、关键机械设备的安装以及电机的调试。  相似文献   

4.
针对我厂#3、4机细气动给水泵组系统调试中出现的故障进行了现场检查和分析,提出了相应的处理措施,解决了存在的问题,确保了#3、4机组汽动给水泵的稳定运行,对于同类型的故障处理具有一定的参考作用。  相似文献   

5.
对工程施工中某型号电动阀门调试,发现了工作中不能进行正常工作的现象,通过对控制器电路的深入分析,找到了控制器电路设计瑕疵,对控制电路进行了必要的改进,消除了运行故障,对同类施工调试具有一定的参考意义.  相似文献   

6.
制定较为完善的机电设备设计选型、安装拆除、运行维护、监测监控、试验调试等操作规程和规章制度是加强电器设备管理的基础.最主要工作还是贯彻落实,强抓现场管理和质量标准化建设,规范工作流程,干标准活,做标准事,加大检查和管理力度,确保矿井供电安全和各类电气设备运行安全.  相似文献   

7.
与变频器、固态软启动相比,采用液态软起动装置控制电机起动的优点、主要的调试方法及安装调试过程中应注意的问题。  相似文献   

8.
由中国机械设备进出口总公司承建的孟加拉吉大港电厂2号210MW机组于1998年9月21日顺利结束了质保期一年的商业运行,正式向孟方交钥匙。 该工程自1994年7月12日合同生效,到1997年9月完成了土建、安装、调试和72h的连续试运行。随后进入一年的商业运行期,成功进行了热态启动试验、性能保证值试验和甩负荷试验,到1998年7月18日完成了合同规定的累计不小于6500h的商业运行。从8月15日起,又进行了为期33天合同规定的检查和检修,以优良的设备质量和机组性能完成了移交工作。  相似文献   

9.
电机广泛地、大量的应用在煤矿的生产活动中.电机的正常工作对保证煤矿生产过程中的安全、高效、优质及低耗运行意义非常重大.电机的故障除了会损坏电机本身以外,同样也会影响整个系统的正常工作,甚至会危及人身安全,造成量大的经济损失.  相似文献   

10.
异步电动机是工矿企业常用的一种电机,由于诸多的原因,电动机在运行若干年后就可能发生故障,而电机的修理就成为延长电动机使用寿命的关键环节,因此企业必须做好这项工作。本文就电动机的机座和铁心、集电环绕组等环节的故障维修进行了分析。  相似文献   

11.
带压氢气直接进入流化系统工艺是可行的,选择降压方案和调节阀,苯胺生产装置的运行是可靠的,而且能节省投资和运行费用,有应用和推广的价值。  相似文献   

12.
Markus Kelle 《The World Economy》2013,36(12):1494-1515
Manufacturing firms increasingly engage in service trade activities. Microlevel data show that German manufacturers accounted for nearly 30 billion euros of service exports in 2005. I have found that particular construction, engineering and R&D services are exported. The machinery industries, motor vehicles and chemicals producers dominate the overall pattern. The types of services exported vary strongly across industries. Service exports of advertising, data processing, management and R&D services are found to likely support foreign affiliates of firms. However, these headquarter services are only infrequently observable. Much more important are construction and engineering services exported by machinery firms. These might represent installation and maintenance services complementing exported machinery. R&D services exports generally represent the transfer of knowledge and technology, which is found to be particularly relevant for motor vehicle producers. Beyond the support of foreign production of firms, R&D services might be relevant also in R&D cooperations of firms or when firms have partnerships with foreign suppliers or buyers of intermediate products.  相似文献   

13.
合议庭是我国最重要的审判组织,合议制是我国最重要的审判方式,合议制功能的发挥正是通过合议庭的运行来实现的,合议庭运行状况的好坏不仅影响着案件的审判质量,同时也影响着我国的审判制度建设。通过对现代化审判权运行规律的探寻,考察我国的审判实践,发现我国合议制的运行存在着诸多问题,对此亟需完善合议庭工作制度,设计合议制高效运行的机制,保障审判组织的良性运转。  相似文献   

14.
较详细地介绍了100t/h全封闭气垫托盘复合犁式多点卸料带式输送机的调研、开发过程和生产试验情况及其技术指标。  相似文献   

15.
The objective of this study was to examine the impact of pedestrian countdown signals (PCS) on the rate of motor vehicle collisions (MVCs) in Toronto, Canada. A quasi-experimental design was used to compare rates of single and two vehicle MVCs before and after installation of PCS in Toronto, Canada between January 2005 and December 2009. Collision incidence rates were compared using Poisson regression analyses with adjustment for relevant cofounders and reported as incidence rate ratios (IRR) with 95% confidence intervals (CI). Secondary analyses were performed on subsets of collisions by collision type and injury severity. A total of 94,175 MVCs occurred at or near 1965 intersections at which PCS were installed over the five-year study period. Overall, the MVC incidence rate increased 7.5% (IRR = 1.075; 95% CI: 1.042–1.109; p < 0.0001) after installation of PCS. The installation of PCS led to an increase in MVCs. PCS may have an unintended consequence of increasing the rate of MVCs.  相似文献   

16.
人民法院的执行权规范运行须坚持执行公开,不断完善公开执行案件信息的各项措施,以公开促公正,以公开促效率,让执行在阳光下进行,不断优化执行工作环境。执行权规范运行须改革传统执行权运行模式,通过对执行案件进行分段执行、集约执行,配合繁简分流,强化节点控制,优化司法资源配置。试行新型的执行权运行模式,需要严格的监管制度保障其良性运行,通过完善执行工作制度,加强干警业绩考核,规范干警执行行为,确保廉洁执行,依法主动执行,全面提升执行工作质效。  相似文献   

17.
A central tenet of the so‐called new consensus view in macroeconomics is that there is no long‐run trade‐off between inflation and unemployment. The main policy implication of this principle is that all monetary policy can aim for is (modest) short‐run output stabilization and long‐run price stability, i.e. monetary policy is neutral with respect to output and employment in the long run. However, research on the different sources of path dependency in the economy suggests that persistent but nevertheless transitory changes in aggregate demand may have a permanent effect on output and employment. If this is the case, then, the way monetary policy is run does have long‐run effects on real variables. This paper provides an overview of this research and explores conceptually how monetary policy should be implemented once these long‐run effects are acknowledged.  相似文献   

18.
We apply the wavelet coherency and phase difference methodology to explore the nature of the relationship and the direction of causality between foreign institutional investment (FII) flows and stock market returns across time and frequency domain for the fast-growing Indian economy. Since both variables are affected by economic uncertainty, we have estimated the partial wavelet coherency and the phase difference to discern the impact of economic uncertainty on the dynamic relationship and causality between those variables. Both the FII flows and the stock market return move together during the periods of the global financial crisis and the European sovereign debt crisis without any causality in the short run, but the stock market leads the FII inflows in the long run. However, in the bull market the stock market Granger causes the FII inflows both in the short run and in the long run. Nonetheless, economic uncertainty drives the co-movement and also masks the causality effect between those two variables. Thus, the results require policymakers to set out a transparent economic environment to reap the benefits of FII flows. As far as the FII outflows are concerned, profit booking and economic uncertainty drive the relationship and the causality in the short run. Hence, policymakers and portfolio managers should be concerned about FII outflows in the long run, while in the short run, it is a normal trading activity.  相似文献   

19.
机电安装工程项目管理主要任务是为用户提供安全、高效、经济、舒适的工作环境,而质量是保证工程顺利进行或工程系统正常运转的基础,本文将结合作者的工作经验对机电设备安装工程项目管理意见进行阐述,以供参考。  相似文献   

20.
This paper examines whether there is a long‐run stable equilibrium relationship between advertising and sales across the market segments of the UK car industry over the period 1971–2001. In order to achieve this goal, we allow for structural breaks in the series using cointegration techniques. The results show the existence of long‐run equilibrium relationships in all six market segments, although in four of them the relationship is not stable. In general, one structural change is detected in the late 1970s and another in the early 1990s, coinciding with two economic recessions. When we do not account for structural changes, the estimated long‐run elasticities of advertising on sales are seen to be substantially downwardly biased. Finally, a noticeable increase is observed in long‐run elasticities in most car market segments during the nineties with respect to previous decades.  相似文献   

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