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流量仪表的故障原因,有仪表本身(如元器件损坏等)引起的,也有环境条件和流体特性方面以及安装不妥、选用不当等应用技术方面引起的。出现的故障可归纳为两方面原因:其一为流量仪表或有关设备不正常引起的,这类原因的故障一般比较容易解决;其二为非流量仪表方面的原因,即流量仪表正常而由环境或系统原因形成的故障,这类原因较为复杂。除了要熟悉该仪表性能以外,还 相似文献
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论述了速度在线监控装置在输送设备发生堵塞、打滑等及时监测和发现这些故障,并在设备因故障而损坏前未发出警告讯号和自动关断有关电源。 相似文献
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电子电路出现故障的原因有很多种,严重的电子电路故障会损坏电子设备,使电子设备直接瘫痪,因此,在电子设备出现故障时,应采用检测故障的手段,仔细检查设备情况,及时处理设备故障。本文简析了电子电路发生故障的原因,并简述了电子电路故障的处理方法。 相似文献
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在低压自动抄表系统中,会出现不同原因引起的设备故障问题,集抄设备发生故障对整个抄表系统的抄表效率会带来较大的影响。要求运维人员能够快速及时确认故障原因,进行故障设备维护,提高集抄系统的采集成功率,使集抄系统运行更加稳定。采用集抄通信故障智能诊断设备能够提高运维人员的故障排查效率,故障信息库的建立有助于对故障成因进行分析与分类,将故障诊断设备与采用人工智能算法的故障诊断系统相结合使用对现场故障问题的解决实施有针对性的处理方案,提高运维质量。 相似文献
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针对当前齿轮箱故障检测设备原理,提出了新的思路:将电学理论与信号处理技术有效结合,以电子元件为主体,为及时对齿轮箱故障进行检测,对齿轮缺陷进行准确定位,及时有效地解决设备故障提供了便利。 相似文献
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为了解决条并卷机夹盘挤坏筒管,导致漏条、棉卷成形不良、棉卷质量不匀率偏大、精梳机生产效率低等问题,分析成卷罗拉轴承包内轴承严重磨损、成卷罗拉与夹盘间隙过大、上送筒管未达到设定位置、夹盘法兰盘严重磨损、夹盘轴承磨损和筒管质量较差造成并卷机筒管损坏的原因和调整措施。指出:在生产实践中,要熟悉设备性能,掌握夹盘加压装置、上管装置调试技巧和操作方法,通过及时更换磨损轴承、定位法兰、选择合格筒管等措施,避免条并卷机夹盘装置出现故障、损坏筒管。 相似文献
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新型浆纱设备常见故障与分析 总被引:1,自引:1,他引:0
分析新型浆纱设备常见故障的解决措施.通过分析新型浆纱设备电气控制装置、气动控制装置、机械控制装置常发故障的产生原因,提出了排查电气故障点、气控故障点的评判方法和应采取的技术措施,提出了判断传动系统功率匹配是否适当的两种方法以及应采取的相应对策.指出:为有效降低新型浆纱设备产生故障的几率,应根据企业生产需要对浆纱机进行正确选型;加强技术人员培训;树立预防为主的理念,将设备故障解决于萌芽状态. 相似文献
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一、概述企业中的印刷设备可能已花费了巨额的投资,需要靠设备正常运作及生产赚取回来。每一分钟因设备故障而引起的停产都是极大的损失。然而,满负荷的连续运作生产亦可能引起印刷设备的损坏,导致维修费用的增加和停产损失。上海拓盛公司针对印刷设备中滚筒的化学腐蚀、损坏,经过三年多时间,研究并开发出高新科技——高分子防腐膜及电沉积技术系列,帮助企业解决因磨损、化学腐蚀、意外冲击等原因而带来的印刷滚筒问题。针对印刷滚筒的腐蚀生锈,专门开发出科学的方法,解决棘手的维修保养和修理需要。二、实例1996年HEIDELBERG(… 相似文献
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芳纶纤维在特殊条件下的强力分析 总被引:1,自引:0,他引:1
利用紫外线及一定浓度的硫酸、烧碱、盐溶液在一定的温度条件下分别对芳纶纤维进行了处理,分析研究了处理后纤维的强力变化。芳纶纤维处理后强力均有一定程度的下降。研究结果表明,经过5 h的紫外线辐射,芳纶纤维的强力有显著的下降;芳纶纤维在质量分数为0.5%的硫酸溶液中浸泡1周后,纤维强力的减少是明显的;经质量分数为2%的烧碱溶液处理1周后,纤维的强力有十分显著的下降;经过质量分数为2%的盐水处理1周,芳纶纤维的强力有了显著的降低。 相似文献
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为了保证集聚纺与赛络集聚纺的成纱质量,延长其胶辊使用寿命、减轻企业经济压力,分析胶辊损伤的原因,提出调换集聚纺与赛络集聚纺胶辊、前上胶辊与控制胶辊的解决方案及质量控制措施。指出:集聚纺与赛络集聚纺胶辊使用30 d起凹痕后调换使用,其圆度和纺纱效果优于新制作胶辊;同机台前上胶辊与控制胶辊调换使用10 d后,压痕恢复。通过试验数据分析,该方案切实可行,既保证了成纱质量又延长了胶辊使用寿命。 相似文献
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《International Journal of Food Science & Technology》1969,4(1):51-60
Summary. A commercial machine for shelling peas was developed after numerous tests of methods for removing peas from pods. the pods are preheated in steam and then fed to a shelling section by means of a vibratory conveyor which aligns them for end-on presentation to a pair of rubber-covered rollers. A standardized feed gap between the conveyor and the rollers separates shelled peas from unshelled pods. Pods which fail to be gripped by the roller pass to a second slightly modified shelling section.
Extensive tests showed that a greater yield of peas was obtained from the sheller operated on hand picked peas, than from conventional stationary or mobile viners operated on vines. Yield for the combination of a mechanical pea pod picker which would be necessary for commerical operations and the pea sheller was not determined. Peas from the sheller were virtually undamaged in contrast to vined peas and were consequently superior in flavour.
Storage of pods for periods of several days before shelling led to an increase in pea maturity but quality was otherwise unaffected. Ability to store pods permits greater flexibility in harvesting and processing operations and allows an extension of the growing area serving a factory. In addition use of the pea sheller eliminates the need for most of the cleaning equipment as shelled peas are clean. Shelled peas pass directly to the processing line without any delay to cause deterioration. 相似文献
Extensive tests showed that a greater yield of peas was obtained from the sheller operated on hand picked peas, than from conventional stationary or mobile viners operated on vines. Yield for the combination of a mechanical pea pod picker which would be necessary for commerical operations and the pea sheller was not determined. Peas from the sheller were virtually undamaged in contrast to vined peas and were consequently superior in flavour.
Storage of pods for periods of several days before shelling led to an increase in pea maturity but quality was otherwise unaffected. Ability to store pods permits greater flexibility in harvesting and processing operations and allows an extension of the growing area serving a factory. In addition use of the pea sheller eliminates the need for most of the cleaning equipment as shelled peas are clean. Shelled peas pass directly to the processing line without any delay to cause deterioration. 相似文献
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Tomatoes, like other vegetables, are susceptible to different kinds of damage during and after harvest. Such damage is a major cause of quality loss in fruit. In order to reduce these losses, it is necessary to know the mechanical properties of the fruit. These mechanical properties of tomato were determined in terms of average rupture force, deformation energy, specific deformation and modulus of elasticity. Variance analysis was carried out on three tomato varieties, and the difference between the mean values was investigated by the least significant difference test. Mean values were represented with the standard error.
The results provide useful data to be used by engineers in the design of sorting, grading and packing machines, equipment for loading and unloading, storage structures, drying equipment, (all postharvest operations), harvesting machines and conveyors.
Our aim for this research is to get useful data for engineers in the design of sorting, grading and packing machines, equipment for loading and unloading, storage structures, drying equipment, harvesting machines and conveyors. 相似文献
The results provide useful data to be used by engineers in the design of sorting, grading and packing machines, equipment for loading and unloading, storage structures, drying equipment, (all postharvest operations), harvesting machines and conveyors.
PRACTICAL APPLICATIONS
Our aim for this research is to get useful data for engineers in the design of sorting, grading and packing machines, equipment for loading and unloading, storage structures, drying equipment, harvesting machines and conveyors. 相似文献