【摘要】：脫水吸收塔是甘醇法脫水工藝系統(tǒng)的核心設(shè)備,脫水吸收塔的性能直接影響脫水工藝系統(tǒng)的處理能力、生產(chǎn)質(zhì)量及能耗定額。吸收塔設(shè)計(jì)及核算過程繁瑣、計(jì)算量大,應(yīng)用輔助軟件可以大幅提高吸收塔工藝設(shè)計(jì)效率及計(jì)算精度。國內(nèi)、外現(xiàn)有的塔器設(shè)計(jì)軟件尚存在一些缺陷,如操作版本低、普適性差、功能不足等。本論文以甘醇法脫水工藝中常用的板式吸收塔為主要研究對(duì)象,從工藝結(jié)構(gòu)設(shè)計(jì)、流體力學(xué)核算和塔體強(qiáng)度設(shè)計(jì)校核三個(gè)角度出發(fā),主要研究工作如下： (1)跟蹤與檢索國內(nèi)、外甘醇法脫水工藝設(shè)計(jì)、吸收塔設(shè)計(jì)與優(yōu)化技術(shù)及相關(guān)領(lǐng)域最新進(jìn)展,調(diào)研國內(nèi)、外塔設(shè)備設(shè)計(jì)輔助軟件的功能特點(diǎn)、適用范圍及研發(fā)趨勢。 (2)歸納、總結(jié)天然氣含水量公式化計(jì)算方法,評(píng)價(jià)不同公式的適用范圍。研究甘醇溶液物性參數(shù),確定貧甘醇濃度及循環(huán)量的計(jì)算方法。 (3)完成脫水吸收塔塔體、溢流區(qū)、開孔區(qū)、降液裝置、氣液接觸元件等工藝設(shè)計(jì)方法研究,提出塔板面積分配方案及氣液接觸元件排布策略,確定脫水吸收塔工藝設(shè)計(jì)流程。 (4)研究泡罩塔板、浮閥塔板和篩孔塔板的水力參數(shù)核算方法,核算內(nèi)容包括干板壓降、液層阻力、降液管液泛、霧沫夾帶液泛等,提出三類塔板的操作彈性界定方法,給出四種情況下的吸收塔水力學(xué)參數(shù)調(diào)優(yōu)步驟。 (5)采用平面假設(shè)分析脫水吸收塔自振特性,推導(dǎo)出吸收塔自振周期計(jì)算公式,研究基本振型影響下吸收塔所受地震載荷、地震彎矩、風(fēng)載荷以及風(fēng)彎矩的計(jì)算方法,確定塔體承載強(qiáng)度和穩(wěn)定性校核指標(biāo)。利用實(shí)梁法和虛梁法研究六種作用力影響下的塔頂撓度計(jì)算公式。分析相同承載條件下塔徑及塔高對(duì)塔頂撓度的影響程度,提出吸收塔塔頂撓度控制范圍。 (6)基于Microsoft Visual Studio2010平臺(tái)C#編程語言,開發(fā)甘醇法脫水吸收塔設(shè)計(jì)及核算輔助軟件TDT-Design,實(shí)現(xiàn)脫水吸收塔工藝設(shè)計(jì)、水力核算、強(qiáng)度設(shè)計(jì)及穩(wěn)定性校核等功能。軟件具有良好的輸入、輸出功能,操作方面,界面美觀,計(jì)算結(jié)果可靠,普適性強(qiáng)。 (7)利用以上研究成果及TDT-Design軟件,設(shè)計(jì)并核算氣田A三甘醇脫水工藝系統(tǒng)中的脫水吸收塔,該塔操作性能穩(wěn)定,能夠滿足氣田A生產(chǎn)工藝需求。
[Abstract]:The dehydration absorption tower is the core equipment of the ethylene glycol method dehydration process system, and the performance of the dehydration absorption tower directly influences the processing capacity, the production quality and the energy consumption quota of the dehydration process system. The design and accounting process of the absorption tower is complicated, the calculation amount is large, and the application auxiliary software can greatly improve the process design efficiency and the calculation accuracy of the absorption tower. In China, other existing tower design software is still in some defects, such as low operation version, poor universality, insufficient function, etc. In this paper, the main research object of the plate-type absorption tower, which is commonly used in the dehydration process of the glycol method, is based on the process design, fluid mechanics accounting and the design of the strength of the tower body. The main research work is as follows: (1) Tracing and retrieving the dehydration process of domestic and external glycol method The design and optimization technology of the absorption tower and the latest progress in the relevant fields, the functional characteristics, the scope of application and the research and development trend of the auxiliary software for the equipment design of the domestic and external tower are investigated. Potential. (2) Induction, summary of the formulation of natural gas water content, and the evaluation of different formulas. The range is used to study the physical parameters of the diethylene glycol solution to determine the concentration of the lean-glycol and the amount of the cycle. (3) The process design method of the tower body, the overflow area, the opening area, the down-flow device and the gas-liquid contact element of the dehydration absorption tower is completed, the area distribution scheme of the tray and the arrangement strategy of the gas-liquid contact element are proposed, and the work of the dehydration absorption tower is determined. (4) The method for calculating the hydraulic parameters of the bubble column plate, the float valve tray and the sieve tray is studied. The accounting contents include the pressure drop of the dry plate, the resistance of the liquid layer, the flooding of the downcomer, the flooding of the mist and the like, and the operation of the three types of trays is proposed. The water power of the absorption tower in four cases is given as the elastic defining method. (5) Using the plane hypothesis to analyze the natural vibration characteristics of the dehydration absorption tower, the calculation formula of the natural period of the absorption tower is derived, and the seismic load, the earthquake bending moment and the wind load of the absorption tower under the influence of the basic vibration mode are studied. And the bearing strength of the tower body is determined. The check index of degree and stability. Under the influence of six forces by using the solid beam method and the virtual beam method, The calculation formula of the tower top deflection is analyzed. The influence of the tower diameter and tower height on the tower top deflection under the same bearing condition is analyzed, and the absorption is proposed. The control range of the tower top deflection. (6) Based on the C # programming language of the Microsoft Visual Studio 2010 platform, the design and accounting auxiliary software TDT-Design of the dehydration absorption tower of the glycol method is developed to realize the process design, hydraulic calculation and strength of the dehydration absorption tower. The software has good input, output function and operation, and the interface is beautiful. and (7) using the above research results and the TDT-Design software to design and calculate the dehydration absorption tower in the gas field A triethylene glycol dehydration process system, the operation performance of the tower is stable,
【學(xué)位授予單位】：西南石油大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TE962

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