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陈伟彬 《中国石油和化工标准与质量》2024,(5):14-16
石油钻井机械设备作为石油勘探和开发的关键装备,其管理与维护对于保障钻井作业的顺利进行和提高工作效率至关重要。本文对石油钻井机械设备的管理与维护进行了探讨,并提出了相应的管理和维护策略,旨在为石油钻井行业提供参考和借鉴。 相似文献
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在油田机械设备中,钻井设备的作用十分巨大,且应用较为频繁,因而必须在油田机械设备维护与管理中,将钻井设备作为维护和管理的重点。从油田钻井机械设备的维护和管理的必要性入手,就如何加强油田钻井机械设备的维护和管理提出了几点对策。 相似文献
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《中国石油和化工标准与质量》2018,(20)
化工机械设备的管理与维护是保证化工机械设备正常运行、提高工作效率、提高化工生产能力的重要前提。它在化工企业的可持续发展中起着重要的作用,是影响化工企业可持续发展的决定因素之一。本文简要介绍了加强化工机械设备管理维护的意义。介绍了化工机械设备的管理和维护技术。分析了化工机械设备管理与维护的基本内容。在此基础上,提出了化工机械设备的管理水平和维护方法和有效途径。 相似文献
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对现有的煤化工电气设备维护与管理方式缺陷进行分析的基础上,结合现有的信息化的电气设备维护与管理系统的发展情况,对煤化工电气设备维护与管理的发展趋势进行了分析,为后续电气设备维护与管理的智能化发展奠定了基础。 相似文献
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为做好医疗设备的管理与维护工作,本文基于医疗设备的应用及管理现状,引入了预防性维护的概念,分析了进行预防性维护的意义,结合医疗设备使用及维护中存在的问题,提出了医疗设备的安全风险管理策略与预防性维护策略,以期通过综合应用这些策略,能有效提高医疗设备的管理及维护水平,进一步促进医院设备管理及应用的降本增效。 相似文献
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付强 《中国石油和化工标准与质量》2014,(22)
采油设备,是石油开采企业进行生产的最重要的物质技术基础。采油设备的管理与维护工作,是石油开采企业的一项常规性工作。做好采油设备的日常管理与维护,才能真正保证石油开采企业的安全生产,才能为增加企业生产效益提供可能。文章有重点的指出了我国当前石油开采企业在采油设备的日常管理与维护中所存在的问题,并对做好采油设备的日常管理与维护工作提供了合理化的建议。 相似文献
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设备管理与维护,在公路工程建设中非常重要,做好设备的管理维护,对于工程施工的顺利开展具有积极的意义。本文首先简单分析目前管理与维护工作中存在的不足,然后具体探究了做好机械设备管理与维护工作的几点方法,希望可以给相关人士起到一些参考作用。 相似文献
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王辉 《化工标准.计量.质量》2012,(6):218-218
本文简要总结了某采油区块井筒综合治理与维护措施。针对一个区块井筒的日常维护,介绍了常见的几种维护方式;对于特殊泵筒的维护,本文介绍了几种成熟设备的使用情况。针对一个区块的井筒综合治理思路,提出了不仅要细化管理,分清主次矛盾;更要统筹兼顾,合理安排和动态管理等理念。 相似文献
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Nadia Plata Iris Hofer Stephane Roudier Jean-Pierre Schaller 《Journal of aerosol science》2006,37(12):1871-1875
A new cryogenic instrument was designed for the trapping of aerosols such as cigarette mainstream smoke at low temperature. The technique enabled the trapping of the mainstream smoke of a single cigarette and the particulate and vapor phases were trapped simultaneously. 2R4F reference cigarettes were smoked under International Standard Organization (ISO) regime and trapped at low temperature using the cryogenic instrument. After trapping, the mainstream smoke of the 2R4F reference cigarette was diluted with a solvent and selected smoke components could be quantified using gas-mass spectrometry (GCMS) and high-performance liquid chromatography (HPLC). The capability of the instrument for trapping the mainstream smoke was demonstrated. The feasibility of the procedure for the detection and the quantification of a large range of smoke components including carbonyls, alkaloids and organic volatile compounds (VOC) in the mainstream of a single cigarette was also shown. 相似文献
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季戊四醇反应液成分复杂,检测困难是长期未能解决的课题,经多种方法对比,不断探索,找到HPLC检测条件:固定相用ODS(YWG-C18),柱温为30℃,移动相是0.4%HAC水溶液,流速1.00mL/min,折光示差检测器。结果具有高准确性和良好重现性 相似文献
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建立肉制品中着色剂测定的高效液相色谱法。采用Inertsil ODS-3C18色谱柱(250×4.6nm,5μ),以甲醇同-0.02mol/L乙酸铵体积比(35:65)为流动相,等度洗脱,流速为1.40mL/min,检测波长为500nm,柱温25℃,在此色谱条件下进行检测,结果表明,四种合成着色剂在20~100mg/L的浓度范围内,线性回归方程的相关系数为0.9991~0.9994,方法回收率为85.2%-105.3%,相对标准偏差为1.3%-4.6%。该方法可有效检测肉制品中四种着色剂的含量。 相似文献
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The analysis of lipids via HPLC with a charged aerosol detector 总被引:2,自引:0,他引:2
Because most lipid extracts are a mixture of saturated and unsaturated molecules, the most successful strategies for the quantitative
analysis of lipids have involved the use of so-called “mass” or universal detectors such as flame ionization detectors and
evaporative light scattering detectors. Recently a new type of HPLC “mass” detector, a charge aerosol detector (CAD), was
developed and is now commercially available. This detection method involves nebulizing the HPLC column effluent, evaporating
the solvents charging the aerosol particles, and measuring the current from the charged aerosol flux. In the present study,
the CAD was evaluated with several normal phase and reverse phase HPLC methods commonly used for the quantitative analysis
of lipid classes and lipid molecular species. The CAD detected common lipids such as triacylglycerols, diacylglycerols, glycolipids,
phospholipids, and sterols. Lower molecular weight lipids such as free FA had smaller peak areas (50–80% lower). FAME were
not detected by the CAD, probably because they were completely evaporated and did not form aerosol particles. The minimum
limits of detection of the CAD with lipids varied with different mobile phase solvents. Using solvent systems that were predominantly
hexane, the minimum limits of detection of triacylglycerols, cholesterol esters, and free sterols were about 1 ng per injection
and the mass-to-peak area ratio was nearly linear from the range of about 1 ng to about 20 mg per injection. Three other solvents
commonly used for HPLC lipid analysis (methanol, isopropanol, and acetonitrile) caused higher levels of background noise and
higher minimum limits of detection. These experiments indicate that the CAD has the potential to become a valuable tool for
the quantitative HPLC analysis of lipids. Long-term studies are needed to evaluate full instrument performance. 相似文献
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A computer-controlled instrument, based on scanning electrochemical microscope technology, is employed in the miniaturized combinatorial electrosynthesis of localized compound collections. Libraries of iminoquinol ethers and triazolo-pyridinium ions are generated in the wells of microtiter plates by potentiostatic electrolysis. Several experimental protocols are described and implemented. Progress of the electrolyses is monitored by microelectrode steady-state voltammetry and product formation is screened by HPLC/MS. 相似文献
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沙棘油中有效成分和药用成分的研究 总被引:4,自引:0,他引:4
利用现代仪器分析法和化学分析方法对沙棘油的主要成分进行了分离和鉴定。通过使用薄层层析、荧光显色和高压液相色谱 (HPLC)等测试手段对分离出的物质进行定性分析 ,结果表明 ,该沙棘油中含有脂肪酸、烃类、萜类、维生素E、甾类、黄酮类等有效组分和药用成分 ;采用紫外分光光度法和化学分析等方法对类胡萝卜素和脂肪酸进行了定量分析 ,测定了类胡萝卜素的含量及籽油中脂肪酸的酸值和皂化值。 相似文献