本文關(guān)鍵詞： 管道運(yùn)輸 泄漏監(jiān)測(cè) 微線檢漏傳感器 MSP430單片機(jī) 3G　出處：《曲阜師范大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：因管道具有運(yùn)輸便捷,易管理,運(yùn)量大,損失小等特點(diǎn),已經(jīng)成為油氣儲(chǔ)運(yùn)的主要方式。但人為地破管偷油或管道自身的老化泄漏等原因引起的漏油損失及其帶來(lái)的惡性事故,使管道運(yùn)輸?shù)陌踩燥@得尤為重要,對(duì)輸油管道的安全監(jiān)測(cè)也就成為石油運(yùn)輸過(guò)程中非常重要的環(huán)節(jié)。隨著管道運(yùn)輸業(yè)的不斷發(fā)展,早期的人工巡線等檢測(cè)技術(shù)因其實(shí)時(shí)性差、精度低等缺點(diǎn)已經(jīng)不能再滿足檢測(cè)的要求,因而多種新型的檢測(cè)技術(shù)應(yīng)運(yùn)而生�，F(xiàn)有的檢測(cè)方法都存在一些不足。如負(fù)壓波法、平衡法和壓力法等,對(duì)檢測(cè)突發(fā)的、較大的泄漏游刃有余,但對(duì)微小泄漏卻又稍顯不足;又如內(nèi)測(cè)法、PPA法以及聲波法等,其檢測(cè)精度較高,但同時(shí)成本也高。論文提出一種微線檢測(cè)法,并針對(duì)其設(shè)計(jì)了輸油管道泄漏監(jiān)測(cè)系統(tǒng)。在對(duì)國(guó)內(nèi)外現(xiàn)有方法的研究基礎(chǔ)上,該方法提出了兩點(diǎn)創(chuàng)新突破:一是在監(jiān)測(cè)微小泄漏時(shí),特別是打孔偷油造成損失的初期,能夠及時(shí)有效地將漏油信息傳輸?shù)娇刂浦行?二是能夠縮小對(duì)漏點(diǎn)位置所在的檢測(cè)范圍。論文設(shè)計(jì)的輸油管道泄漏無(wú)線監(jiān)測(cè)系統(tǒng),分為實(shí)時(shí)監(jiān)測(cè)和信息傳輸兩部分。其中,實(shí)時(shí)監(jiān)測(cè)部分的每節(jié)管道安裝MSP430單片機(jī)為控制器,控制自主研制的微線檢漏傳感器采集管道外檢測(cè)端的電平信號(hào),根據(jù)電平信號(hào)的高低來(lái)判斷管道是否發(fā)生泄漏,同時(shí)采集管道溫度信息和壓力信息,作為檢測(cè)管道運(yùn)營(yíng)情況的輔助信息。信息傳輸部分:因?qū)艿婪纸M管理,小組內(nèi)部通過(guò)總線型主從式結(jié)構(gòu)進(jìn)行多機(jī)通信,再通過(guò)CC1101無(wú)線通信模塊發(fā)送到中繼單元,最后由EM770W模塊通過(guò)3G無(wú)線網(wǎng)絡(luò)把信息傳輸?shù)娇刂浦行�。論文軟件部分是利用C語(yǔ)言在IAR編程環(huán)境設(shè)計(jì)完成的。軟件設(shè)計(jì)包括管道監(jiān)測(cè)系統(tǒng)的主程序,電平監(jiān)測(cè)、溫度監(jiān)測(cè)以及壓力監(jiān)測(cè)的子程序等。設(shè)計(jì)滿足了對(duì)輸油管泄漏監(jiān)測(cè)需求,能夠在泄漏發(fā)生初期及時(shí)將管道的運(yùn)營(yíng)情況發(fā)送的控制中心。在實(shí)驗(yàn)室對(duì)該系統(tǒng)進(jìn)行了現(xiàn)場(chǎng)模擬測(cè)試,測(cè)試結(jié)果顯示該系統(tǒng)能及時(shí)有效地監(jiān)測(cè)出管道外檢測(cè)端的電平變化,CC1101模塊和EM770W模塊也能正常通信,檢測(cè)結(jié)果可以通過(guò)3G無(wú)線網(wǎng)絡(luò)發(fā)送到電腦顯示結(jié)果。
[Abstract]:Because the pipeline has the characteristics of convenient transportation, easy management, large volume of transportation and small loss, it has become the main way of oil storage and transportation. However, the oil leakage loss caused by artificially breaking the pipeline or the aging leakage of the pipeline itself and the malignant accidents caused by it have become the main way of oil storage and transportation. The safety of pipeline transportation is particularly important, and the safety monitoring of oil pipeline becomes a very important link in the process of oil transportation. With the continuous development of pipeline transportation, the early inspection technology such as manual inspection is poor because of its poor real-time performance. Some shortcomings such as low precision can no longer meet the requirements of detection, so many new detection techniques have emerged. There are some shortcomings in existing detection methods, such as negative pressure wave method, balance method and pressure method, etc. The larger leakage works well, but it is not enough for small leakage, such as internal testing method, PPA method and acoustic wave method, which have high detection accuracy and high cost. In this paper, a micro-wire detection method is proposed. Based on the research on the existing methods at home and abroad, this method has put forward two innovative breakthroughs: first, in the monitoring of small leakage, especially in the initial stage of oil loss caused by drilling and stealing oil, The oil leakage information can be transmitted to the control center in time and effectively, and the detection range of leak location can be reduced. The wireless monitoring system for oil pipeline leakage is divided into two parts: real time monitoring and information transmission. In the real-time monitoring part, MSP430 microcontroller is installed in every section of the pipeline to control the self-developed micro-wire leak detection sensor to collect the level signal of the detection end outside the pipeline, and to judge whether the pipeline leaks or not according to the level of the level signal. At the same time, collecting pipeline temperature information and pressure information, as the auxiliary information to detect pipeline operation. Information transmission part: because of the pipe grouping management, the group carries on the multi-computer communication through the bus-type master-slave structure, Then it is sent to the relay unit through the CC1101 wireless communication module, Finally, the EM770W module transmits the information to the control center through 3G wireless network. The software part of the paper is designed in IAR programming environment using C language. The software design includes the main program of pipeline monitoring system, level monitoring. The subroutine of temperature monitoring and pressure monitoring is designed to meet the requirement of oil pipeline leakage monitoring, and the control center can send the pipeline operation condition in time in the early stage of the leak. The field simulation test of the system is carried out in the laboratory. The test results show that the system can monitor the level change of the outside detection end in time and effectively. The CC1101 module and the EM770W module can also communicate normally, and the detection results can be transmitted to the computer through 3G wireless network.
【學(xué)位授予單位】：曲阜師范大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TE973.6

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本文編號(hào)：1528380