【摘要】：輸油泵是原油輸送管線的重要動力設備,大容量離心輸油泵功率非常大,每年消耗巨大的能源。在我國九成以上的原油通過管道輸送,總耗電量占輸油整體成本的四分之一左右,其中九成以上的耗電量用在了輸油泵上。實時監(jiān)測輸油泵的運行效率,熟悉輸油泵性能曲線的特點,對合理調節(jié)泵運行工況、加強泵站的科學管理等極為重要,同時也是設備安排檢修的主要依據。因此經常、準確的測量輸油泵的效率值,及時對泵的運行狀況進行調節(jié),減少輸油泵損耗對提高勞動生產率和經濟效益有很大意義,符合我國節(jié)能減排的目標和總體要求。基于ARM原油泵效率儀的研究是以熱力學法為核心方法,采用意法半導體公司生產的以ARM Cortex-M3為核心的STM32F103C8T6微控制器。旨在開發(fā)一種用熱力學法測量泵效率的,集數據采集、結果的計算、上傳、顯示為一體的高精度原油泵效率測量裝置。本文以熱力學第一定律為基礎,詳細推導了基于熱力學理論測試離心泵效率的公式,并且加入了原油定壓比熱、等熵壓縮溫升等特性的討論和計算方法,確定了泵效率高精度測量區(qū)間,最后給出了原油泵效率現場測量的公式,并對主要參數進行確定。根據課題的要求,硬件上對原油泵效率儀的各個模塊進行了器件選型以及驅動電路設計,繪制了原理圖及PCB圖并制作出了樣機。軟件上以Realview MDK為平臺進行模塊化編程并在樣機上調試成功。最后在實驗室離心泵平臺上進行泵效率測試,驗證了本原油泵效率儀在設計測量條件下的可行性與可靠性。
[Abstract]:Oil pump is an important power equipment for crude oil pipeline. The power of large capacity centrifugal oil pump is very large, and it consumes huge energy every year. More than 90% crude oil is transported through pipeline in our country, and the total electricity consumption accounts for 1/4 of the total cost of oil transportation, in which more than 90% of the electricity consumption is used on the oil pump. It is very important to monitor the operating efficiency of the oil pump in real time and to be familiar with the characteristics of the performance curve of the pump. It is very important to regulate the operating condition of the pump reasonably and to strengthen the scientific management of the pump station. It is also the main basis for the arrangement and maintenance of the equipment. Therefore, it is of great significance to measure the efficiency value of the oil pump accurately, to adjust the pump operation condition in time and to reduce the loss of the pump in order to improve the labor productivity and the economic benefit, and accord with the goal and the overall requirement of energy saving and emission reduction in our country. The research of the oil pump efficiency instrument based on ARM is based on the thermodynamic method and the STM32F103C8T6 microcontroller with ARM Cortex-M3 as the core produced by Italy Semiconductor Company. The purpose of this paper is to develop a high precision measuring device for measuring pump efficiency by thermodynamic method, which includes data collection, calculation, upload and display of the results. Based on the first law of thermodynamics, the formula for measuring the efficiency of centrifugal pump based on thermodynamic theory is derived in detail, and the discussion and calculation method of the characteristics of constant pressure specific heat of crude oil and isentropic compression temperature rise are added in this paper. The high precision measurement interval of pump efficiency is determined. At last, the formula of field measurement of oil pump efficiency is given, and the main parameters are determined. According to the requirements of the project, the device selection and driving circuit design of each module of the original oil pump efficiency instrument are carried out in hardware, the schematic diagram and PCB diagram are drawn and a prototype is made. Software based on Realview MDK as the platform for modular programming and debugging on the prototype successfully. Finally, the pump efficiency is tested on the platform of the laboratory centrifugal pump, which verifies the feasibility and reliability of the original oil pump efficiency instrument under the conditions of design and measurement.
【學位授予單位】：西安石油大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TE974.1

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本文編號：2407570