本文關(guān)鍵詞： 螺桿泵 定子橡膠 溫度 溶脹 摩擦磨損　出處：《沈陽(yáng)工業(yè)大學(xué)》2015年碩士論文　論文類(lèi)型：學(xué)位論文

【摘要】：科學(xué)技術(shù)的不斷進(jìn)步促使螺桿泵采油系統(tǒng)在含砂稠油井的應(yīng)用不斷推廣，而且具有良好的發(fā)展前景。螺桿泵采油具有操作方便、投資少、設(shè)備結(jié)構(gòu)簡(jiǎn)單、節(jié)能效果明顯以及適應(yīng)性強(qiáng)等特點(diǎn)，有良好的發(fā)展前景。定子橡膠作為采油螺桿泵的關(guān)鍵部件之一，其性能優(yōu)劣是決定螺桿泵應(yīng)用效果的重要因素。螺桿泵連續(xù)工作在相對(duì)較高的溫度環(huán)境中，較高的環(huán)境溫度致使定子橡膠的物理、化學(xué)性能發(fā)生變化，，加速橡膠的老化和磨損，縮短定子的使用壽命。因此深入研究溫度對(duì)定子橡膠的影響，對(duì)于螺桿泵的發(fā)展至關(guān)重要。 本文從螺桿泵的實(shí)際工作環(huán)境出發(fā)，以不同丙烯腈含量的丁腈橡膠為材料，通過(guò)測(cè)試經(jīng)原油溶脹后橡膠試樣的體積、抗拉強(qiáng)度和扯斷伸長(zhǎng)率等的一系列變化，研究溫度對(duì)定子橡膠機(jī)械性能的影響；并利用MPV-600環(huán)塊式摩擦磨損試驗(yàn)機(jī)，以原油為磨損介質(zhì)，在不同的溫度條件下，分別對(duì)溶脹后和未溶脹的三種丁腈橡膠進(jìn)行磨損試驗(yàn)，重點(diǎn)研究溫度對(duì)橡膠摩擦磨損性能的影響。 通過(guò)上述實(shí)驗(yàn)并對(duì)橡膠溶脹及磨損表面的分析，證實(shí)了溫度的變化對(duì)定子橡膠的性能確實(shí)有很大的影響，溫度升高會(huì)促使原油中小分子物質(zhì)劇烈活動(dòng)，進(jìn)入橡膠內(nèi)部導(dǎo)致分子鏈的斷裂或交聯(lián)，致使力學(xué)性能下降。同時(shí)，溫度的升高還會(huì)使定子橡膠的耐磨性能和磨損機(jī)理改變。分析得出，在原油介質(zhì)中溫度對(duì)定子橡膠的影響主要體現(xiàn)在溶脹、化學(xué)侵蝕和機(jī)械磨損方面，并且橡膠的丙烯腈含量也有很大關(guān)聯(lián)影響。
[Abstract]:With the development of science and technology, the application of screw pump oil recovery system in sand bearing heavy oil wells is popularized and has a good development prospect. The screw pump oil recovery has the advantages of easy operation, less investment and simple equipment structure. As one of the key components of oil recovery screw pump, the stator rubber is one of the key parts of oil recovery screw pump with obvious energy-saving effect and strong adaptability, and has a good development prospect. Its performance is an important factor to determine the application effect of screw pump. The continuous operation of screw pump in relatively high temperature environment, the higher ambient temperature causes the change of physical and chemical properties of stator rubber. It is very important for the development of screw pump to study the effect of temperature on stator rubber by accelerating the aging and wear of rubber and shortening the service life of stator. Based on the actual working environment of screw pump, a series of changes such as volume, tensile strength and elongation at break of rubber samples after swelling of crude oil were measured with acrylonitrile rubber with different content of acrylonitrile as material. The effect of temperature on mechanical properties of stator rubber was studied. Three kinds of nitrile butadiene rubber (NBR) after swelling and without swelling were tested under different temperature using MPV-600 ring block friction and wear tester with crude oil as wear medium. The effect of temperature on the friction and wear properties of rubber was studied. Through the above experiments and the analysis of rubber swelling and wear surface, it is proved that the change of temperature has a great influence on the performance of stator rubber, and the increase of temperature will promote the intense activity of small molecular matter in crude oil. Entering into the rubber leads to the breakage or crosslinking of the molecular chain, which leads to the decline of mechanical properties. At the same time, the increase of temperature will also change the wear resistance and wear mechanism of the stator rubber. The influence of temperature on stator rubber in crude oil medium is mainly reflected in swelling, chemical erosion and mechanical wear, and the acrylonitrile content of rubber is also closely related.
【學(xué)位授予單位】：沈陽(yáng)工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類(lèi)號(hào)】：TE933.3;TQ330.73

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