长输油管线无损检测系统中外定位计算机系统的软件设计.doc

长输油管线无损检测系统中外定位计算机系统的软件设计摘要石油及天然气开采之后,往往需异地输送,、天然气等工业的发展,管道输送在国民经济中的地位越来越重要,特别是长距离输送管道的优势更是明显。同时,由于无法做到对地下管道的及时检测,则难以预知输油管线内的受损部位及受蚀程度,一旦管道受蚀泄露不仅造成资源浪费,而且污染环境,所以长距离输送管道的在役检测和定位技术已成为各国关注的重大课题。目前全球有长达数千万公里的各类在役管道,而在我国,到一九九四年底油气管道干线已长达两万多公里,部分管线服役超过 20 年以上,长输油管线无损检测势在必行。文中介绍了长距离输送管道的无损泄漏检测的常用方法及外定位方法的基本硬件原理和具体的软件调试,并着重介绍了 PIC 系列单片机的原理、编程. 关键词:长距离输油管道,无损检测,外定位, PIC I 长输油管线无损检测系统中外定位计算机系统的软件设计 Abstract After petroleum and natural gas are mined , need to often transport differently, it is away from may reach , thousands kilometers of. transport along with petroleum, the development of the etc. industry of natural gas and pipeline in national economy in position more and more important, transport the advantage of pipeline especially long distance is obvious more. at the same time, because of can not plish for the prompt detection of underground pipeline, is hard to know the damage position in the line of petroleum pipeline in advance and receive lose level, once pipeline receive lose reveal not only cause resource waste, also pollute environment, so long distance transport pipeline in labor detection and location technology have e countries pay attention to important program. Now there are thousands and thousands kilometers of pipeline in service all over the world, and in China, till the end of 1994 the length of main pipeline in service for the transportation of petroleum and gas had been more than twenty thousands kilometers. Part tube the line undergo military service to exceed 20 years above, so it is very necessarily that the oil long distance pipeline have been examined. This paper tell us the long distance transport the nondestructive of pipeline leak detection debug frequently with method and the basic hardware principle of outside location method and specific software, stress have introduced PIC programming and the principle of series single flat machine. Key words : long-distance transport pipelines ,Nondestructive testing . Out-localization, PIC I