煤矿一种新型防护装置

选用欧姆龙CX-Programmer为系统软件开发平台和CPM2A整体式可编程控制器!简称PLC),并结合强电与弱点知识,设计了适合在商业办公楼、行政大楼、中小型宾馆和居民公寓等中低层建筑中使用的一种新型电梯控制器.巧妙地利用PLC自上而下的循环扫描方式，以及I/O刷新结果在下一个扫描周期保持不变等自身特点,解决了电梯运行时,顺向优先执行,呼梯信号具有记忆功能等设计难题.

　主要介绍了一种国外新近开发的圆形缠绕式深型Carrousel 氧化沟技术。包括其主要工艺设计特点,池型结构,控制设备及其布置运行。这种氧化沟具有占地少,运行灵活,出水水质好的特点。

通过采用焙烧工艺合成高纯铝酸钙，制备高效氧化铝钙混凝剂的方法，研制一种生产高效絮凝剂的新工艺技术；对焙烧和酸溶工艺在制备过程中的作用进行了探讨；应用该混凝剂对本钢炉集尘洗涤进行了处理试验。

　　本实用新型满足当中置接地车推出柜外，投入中熔断+避雷器车时，接地车非工作位置点对本段进线柜和分段柜的可靠二次联锁，从技术层面上彻底解决了传统中置接地车推PT柜、同为中置手车时其辅助点易失效，从而导致五防联锁失效的问题，保证了开关柜的安全可靠运行，具有外形小巧，结构简单，便于安装，五联锁安全可靠等特点。

The process of selecting and designing the major components for a hybrid solar collector/CHP system is described. Particular attention was given to the design of the solar collector and a number of options, including thin membrane heat pipe solar collectors (both ‘normal’ and ‘artery’ types) and hybrid heat pipe solar collectors (both wicked and wickless types), were considered. Performance comparisons were made using theoretical and experimental data and a hybrid solar collector was selected as the best option for the system. Micro impulse-reaction turbine using n-pentane as its working fluid was selected for the system although further work is being carried out on a compressed-gas driven turbo alternator. A prototype hybrid solar collector/CHP system has been constructed and the results of its theoretical and experimental testing are presented in Part II of this paper.

接地装置所采用的材料,应符合设计要求,当设计无要求时,应有型钢,其规格尺寸应符合规范要求,接地装置的安装通常应采用搭接焊,接地装置的接地电阻不应超过4Ω,电击防护的首要基措施是将带电体绝缘,其次是电气隔离,再次是自动断开电源。

GBT17045-2008《电击防护 装置和设备的通用部分》

建筑物的电气装置电击防护，资料内容清晰，可供参考，欢迎下载。