本文選題：電阻探針 + 金屬腐蝕　； 參考：《大連理工大學(xué)》2013年碩士論文

【摘要】：海底管道內(nèi)壁腐蝕實時監(jiān)測系統(tǒng)需要應(yīng)用針對海底管道內(nèi)壁腐蝕的傳感器、高精度腐蝕監(jiān)測裝置以及無人值守的腐蝕監(jiān)測軟件。在本世紀海洋石油開發(fā)熱潮的背景下,國外已有公司開發(fā)出針對海底管道內(nèi)壁腐蝕實時監(jiān)測技術(shù)產(chǎn)品,國內(nèi)相應(yīng)產(chǎn)品的監(jiān)測方式和精度都不能滿足工程實際需求。本文依托“國家重大科技專項——荔灣3-1氣田腐蝕監(jiān)測與防腐系統(tǒng)設(shè)計”子課題,開展電阻探針腐蝕實時監(jiān)測系統(tǒng)的基礎(chǔ)研究工作,為研制具有自主知識產(chǎn)權(quán)的海底管道內(nèi)壁腐蝕實時監(jiān)測系統(tǒng)打下堅實基礎(chǔ)。最終期望實現(xiàn)工業(yè)化應(yīng)用,實現(xiàn)遠程、實時和在線監(jiān)測海底油氣管道內(nèi)壁腐蝕狀態(tài)。 本文所做的主要工作分為以下幾部分： (1)研究了基于溫度補償?shù)碾娮杼结樀脑?分析了溫度對電阻探針腐蝕監(jiān)測系統(tǒng)的影響。認為采用基于溫度補償原理的方法進行腐蝕實時監(jiān)測,可以在一定程度上消除溫度在腐蝕監(jiān)測過程中的影響,并將此影響歸結(jié)為溫度對金屬電阻率的影響。深入討論了溫度對電阻探針腐蝕監(jiān)測系統(tǒng)單個測量周期內(nèi)的影響,并將此影響歸結(jié)為由于溫度而產(chǎn)生的熱電動勢的影響,可以采用電流倒向原理對此影響進行補償。 (2)分析了常用的U型電阻探針的不足,提出了一種新型的基于環(huán)狀探針對的電阻探針,并制作了實際裝置。 (3)研制了腐蝕監(jiān)測裝置(HMMS),開發(fā)了配套軟件,實現(xiàn)腐蝕監(jiān)測的自動化。HMMS包含高精度的數(shù)控恒流源等單元模塊,創(chuàng)新地采用模擬開關(guān)解決腐蝕監(jiān)測過程中待測元件多樣化的問題。 (4)進行了電阻探針腐蝕監(jiān)測系統(tǒng)的溫度相關(guān)性實驗、穩(wěn)定性實驗和加速腐蝕實驗,采用了偏移補償法和電流倒向法降低溫度的影響,確定了本文所述系統(tǒng)的金屬腐蝕深度監(jiān)測分辨率達到0.1μm。
[Abstract]:The real-time monitoring system of submarine pipeline inner wall corrosion requires the application of sensors, high precision corrosion monitoring device and unattended corrosion monitoring software for submarine pipeline inner wall corrosion. Under the background of the offshore oil exploitation upsurge in this century, some foreign companies have developed real-time monitoring technology for the inner wall corrosion of submarine pipelines. The monitoring methods and precision of the domestic products can not meet the actual needs of engineering. Based on the sub-project of "corrosion monitoring and anticorrosion system design in Liwan 3-1 gas field, a major national science and technology project", the basic research work of resistance probe corrosion real-time monitoring system is carried out in this paper. It lays a solid foundation for the development of a real-time monitoring system for the inner wall corrosion of submarine pipelines with independent intellectual property rights. Finally, it is expected to realize industrial application, remote, real-time and on-line monitoring of corrosion status of submarine oil and gas pipeline inner wall. The main work of this paper is divided into the following parts: 1) the principle of resistance probe based on temperature compensation is studied, and the influence of temperature on the corrosion monitoring system of resistance probe is analyzed. It is considered that the method based on the principle of temperature compensation can eliminate the influence of temperature in the process of corrosion monitoring to a certain extent, and this effect can be attributed to the effect of temperature on the resistivity of metals. The effect of temperature on the temperature in a single measuring period of resistance probe corrosion monitoring system is discussed, and the effect is reduced to the influence of thermoelectromotive force caused by temperature. The effect can be compensated by the principle of reverse current. A new type of resistance probe based on annular probe pair is proposed and a practical device is made. (3) A corrosion monitoring device has been developed, and a complete set of software has been developed to realize the automation of corrosion monitoring. HMMS includes high precision numerical control constant current source and other unit modules. The analog switch is innovatively used to solve the problem of diversification of the components to be tested in the process of corrosion monitoring. The temperature dependence experiment, stability experiment and accelerated corrosion experiment of resistance probe corrosion monitoring system are carried out. The effect of temperature is reduced by offset compensation method and current backward method. It is determined that the metal corrosion depth monitoring resolution of the system in this paper is 0.1 渭 m.
【學(xué)位授予單位】：大連理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：U178;P756.2

【參考文獻】

相關(guān)期刊論文 前10條

1 趙英偉;龐克儉;;Kelvin四線連接電阻測試技術(shù)及應(yīng)用[J];半導(dǎo)體技術(shù);2005年11期

2 馮業(yè)銘,耿小蘭,鄭立群;弱極化法腐蝕速度測試儀的研制[J];傳感器技術(shù);1999年05期

3 任美輝;趙玉梅;梁原華;;鏡像電流源原理及其應(yīng)用電路[J];電測與儀表;2006年04期

4 湯天遴,高亞楠,石偉,靖朝強,鄭立群,荀偉;腐蝕監(jiān)測技術(shù)在中原油田的應(yīng)用[J];腐蝕科學(xué)與防護技術(shù);2003年01期

5 柏任流;董澤華;郭興蓬;楊全安;李瓊瑋;李明星;;基于溫度補償?shù)碾娮杼结樃g監(jiān)測原理的研究[J];腐蝕科學(xué)與防護技術(shù);2007年05期

6 張敏;黃紅軍;李志廣;萬紅敬;;金屬腐蝕監(jiān)測技術(shù)[J];腐蝕科學(xué)與防護技術(shù);2007年05期

7 左慧君,金文房;電阻探針MS3500E在線腐蝕監(jiān)測應(yīng)用[J];腐蝕與防護;2000年12期

8 陳勇鋼;吳伯農(nóng);;AD7705高精度數(shù)據(jù)采集的實現(xiàn)[J];國外電子測量技術(shù);2006年01期

9 周延?xùn)|;我國海底管道的發(fā)展狀況與前景[J];焊管;1998年04期

10 趙永韜,趙常就;冷卻水腐蝕監(jiān)測的發(fā)展概況[J];四川化工與腐蝕控制;1998年06期

相關(guān)博士學(xué)位論文 前1條

1 張紹杰;埋地熱油管道運行分析[D];西南石油學(xué)院;2005年

相關(guān)碩士學(xué)位論文 前1條

1 何楠;我國海洋石油天然氣管道保護立法問題研究[D];華北電力大學(xué)（北京）;2010年

，

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