【摘要】：氣力輸送是指利用氣流將固體物料在管道中進(jìn)行輸送的方法。氣力輸送技術(shù)始于十九世紀(jì)末期,經(jīng)過一百余年的發(fā)展實(shí)踐,在技術(shù)和裝備方面取得了很大的進(jìn)展。由于它與輸送機(jī)、運(yùn)輸車等粉粒體輸送方法相比,具有系統(tǒng)密封、防塵、保護(hù)環(huán)境等優(yōu)點(diǎn),因此廣泛應(yīng)用于國民經(jīng)濟(jì)建設(shè)的各個行業(yè),包括化工、輕工、醫(yī)藥、食品、礦山、冶金、搬運(yùn)(如碼頭、倉儲的粉粒料搬運(yùn))以及環(huán)境工程等。 氣力輸送過程是一個復(fù)雜多變的過程,不單涉及到粉體技術(shù),還和流體力學(xué)等有密切的關(guān)系。一般工程上氣力輸送系統(tǒng)的設(shè)計大多采用相似理論和實(shí)驗經(jīng)驗相結(jié)合的方法,設(shè)計效率低,主要依賴于工程設(shè)計人員的經(jīng)驗。 本文對氣力輸送計算機(jī)輔助設(shè)計進(jìn)行了深入的研究。此設(shè)計系統(tǒng)從功能上主要分為四個模塊:高壓輸送模塊、低壓輸送模塊、除塵系統(tǒng)模塊和資料查詢模塊。高壓輸送模塊主要涉及橡膠廠炭黑密相氣力輸送系統(tǒng)和燃煤發(fā)電廠粉煤灰氣力輸送系統(tǒng)的設(shè)計。低壓輸送模塊可進(jìn)行物料負(fù)壓和正壓輸送的設(shè)計。除塵系統(tǒng)模塊可以根據(jù)入風(fēng)口截面積、入風(fēng)口風(fēng)速、風(fēng)管設(shè)計速度、風(fēng)管長度、除塵器的過濾風(fēng)速等設(shè)計參數(shù)完成系統(tǒng)消耗風(fēng)量、壓損、風(fēng)管直徑以及所需過濾面積的計算。資料查詢模塊可以查閱收集的中英文書籍、碩博論文、相關(guān)的標(biāo)準(zhǔn)及規(guī)范、常見物料的物性、相關(guān)的參數(shù)以及輸送方式的選擇,還可以進(jìn)行各種單位之間的換算。各個模塊最后的計算結(jié)果以記事本的形式輸出保存,供以后查閱。 本文介紹了氣力輸送計算機(jī)輔助設(shè)計系統(tǒng)的理論基礎(chǔ)、設(shè)計流程及實(shí)現(xiàn)方法。選擇合適的氣力輸送方式,軟件會根據(jù)所填寫的物料和系統(tǒng)的基本參數(shù)計算出多種能滿足設(shè)計和生產(chǎn)要求的結(jié)果,包括系統(tǒng)的末端氣速、管道內(nèi)徑、消耗氣量、料氣比、系統(tǒng)壓損等。 此軟件采用Delphi語言進(jìn)行面向?qū)ο蟮脑O(shè)計,方便系統(tǒng)后續(xù)的擴(kuò)充和完善。
[Abstract]:Pneumatic conveying is a method of conveying solid material in a pipeline by means of air flow. Pneumatic conveying technology began in the late 19th century. After more than 100 years of development and practice, great progress has been made in technology and equipment. Because it has the advantages of systematic sealing, dust-proof and environmental protection, it is widely used in various industries of national economic construction, including chemical industry, light industry, medicine, food, mining, etc. Metallurgy, handling (e. G. Wharf, silt handling of storage) and environmental engineering. Pneumatic conveying process is a complicated and changeable process, which not only involves powder technology, but also has a close relationship with hydrodynamics. In general, the design of pneumatic conveying system in engineering is based on the combination of similar theory and experimental experience, and the design efficiency is low, which mainly depends on the experience of engineering designers. In this paper, the computer aided design of pneumatic conveying is studied. The design system is mainly divided into four modules: high pressure transport module, low pressure transport module, dust removal system module and data query module. The high pressure conveying module is mainly concerned with the design of carbon black dense phase pneumatic conveying system and fly ash pneumatic conveying system of coal-fired power plant. Low-pressure conveying module can be used to design negative pressure and positive pressure conveying materials. The system module can calculate the air consumption, pressure loss, air pipe diameter and required filter area according to the design parameters such as the cross section area of the air inlet, the wind speed of the inlet, the design speed of the air duct, the length of the air duct, the filter speed of the dust collector, and so on. The data query module can refer to the collected books in English and Chinese, articles, related standards and specifications, the physical properties of common materials, the relevant parameters and the selection of transportation methods, and can also do the conversion between various units. The final results of each module are output and saved in notepad form for later reference. This paper introduces the theoretical basis, design flow and realization method of pneumatic conveying CAD system. Choosing a suitable pneumatic conveying mode, the software will calculate a variety of results that can meet the design and production requirements according to the basic parameters of the materials and systems filled in, including the terminal gas velocity of the system, the inner diameter of the pipeline, the amount of gas consumed, and the ratio of material to gas. System pressure loss etc. This software adopts Delphi language for object-oriented design, which is convenient for further expansion and perfection of the system.
【學(xué)位授予單位】：青島科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2011
【分類號】：TH232

【參考文獻(xiàn)】

中國期刊全文數(shù)據(jù)庫 前10條

1 劉宗明,段廣彬,趙軍;低速高能效的濃相氣力輸送技術(shù)[J];中國粉體技術(shù);2005年05期

2 張衛(wèi)東,蘇海佳,高堅;袋式除塵器及其濾料的發(fā)展[J];化工進(jìn)展;2003年04期

3 陳維g{,曾耀先;水平脈沖氣力輸送的壓力降和料栓速度[J];化學(xué)工程;1979年02期

4 任榮華;袋式除塵技術(shù)的發(fā)展與應(yīng)用[J];機(jī)械管理開發(fā);2002年05期

5 程克勤;氣力輸送用氣源機(jī)械的選擇[J];硫磷設(shè)計與粉體工程;2003年02期

6 李紀(jì)錦;耿振中;高天寶;;氣力輸送中炭黑破碎率試驗的正交設(shè)計[J];硫磷設(shè)計與粉體工程;2006年05期

7 李勇;王海萍;;氣力輸送系統(tǒng)輸送管道對能耗的影響[J];硫磷設(shè)計與粉體工程;2010年04期

8 閆忠,王炳忠,劉文東,吳曉平;氣力輸送系統(tǒng)節(jié)能分析[J];木材加工機(jī)械;1997年02期

9 林宗虎,王棟,王樹眾,林益;多相流的近期工程應(yīng)用趨向[J];西安交通大學(xué)學(xué)報;2001年09期

10 蔣存剛;李紀(jì)錦;李勇;;影響脈沖袋式除塵器清灰效果的因素探討[J];橡膠工業(yè);2007年01期

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