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混凝土攪拌站自動化控制系統(tǒng)畢業(yè)論文(參考版)

2024-09-01 09:17本頁面
  

【正文】 according to the different liquid viscosity can be divided into low viscosity fl uid mixer, medium high viscosity liquid agitator. Low viscosity fluid mixer, such as: trefoil push type impeller, blade paddle (2 to 60 percent off leaves), 6 straight blade turbine type, super hybrid impeller type (HR]O0, HV200),。 山東科技大學(xué) 41 參考文獻 [1]Guoliang Zhong. Design of the Closed Loop Speed Control System for DC 2020 [2],Lee ,Fuzzy scheduling control of a power plant,Power Engineering Society winter Meeting,2020,(1):p441445. [3]馮忠緒.混凝土攪拌理論與設(shè)備 [M].北京:人民交通出版社, 2020. [4]胡壽松 .自動控制原理簡明教程第二版 .北京 :科學(xué)出版社, 2020 [5] 楊樂平 李海濤 肖相生等 .LABVIEW 程序設(shè)計與應(yīng)用 .北京 :電子工業(yè)出版社 , [6]劉篤喜 程益恒等 .雙電機驅(qū)動卷繞式系統(tǒng)轉(zhuǎn)速同步控制研究 .西北工業(yè)大學(xué) , [7]湯蘊璆 . 電機學(xué)第四版 .北京:機械工業(yè)出版社, [8] 李順利 . 混凝土攪拌站基礎(chǔ)知識概述 .中國水電建設(shè)集團第十五局, 山東科技大學(xué) 42 山東科技大學(xué) 43 附錄 文獻翻譯 1. Design of small mixer Abstract: Mixing equipment has a long history, a wide range of applications. Widely used in chemical industry, petroleum industry has, the construction industry and traditional industry. Mixing operation appears to be simple, but in fact, it involved are extremely plex. This paper introduces the basic ideas of small pulsator design and basic theory, analyzes the basic structure of stirrer and related contents of motion and power device. The basic equipment of stirrer description and references of its basic principle, function and operation, and design for the small mixer were reviewed. The graduation project of the purpose, significance, current situation of domestic and foreign graduation design topic research purpose, significance Agitator making chemical reaction is to make the role of the agitator in chemical production liquid mixing, chemical reaction can be carried out to meet the greatest degree of. The device can replace the manual stirring toxic to the human body or harmful chemical raw material, the skin has the advantages of simple structure, convenient use, wide application in chemical production. This paper designed a small mixer, about 500 liters in volume, stable and flexible, easy to use. This topic mainly relates to equipment design of agitator in chemical production, mainly to solve the problem of the design, the equipment in chemical production include: agitator selection, motor and reducer selection, support device design, shaft seal, selection and setting tank design, and draw the corresponding equipment History and development status of agitator Mixing equipment is widely used as a kind of fluid machinery products, wide variety, suitable for chemical industry, metallurgy, medicine, food and feed industries. Mixing operation is an important link in the industrial process, which 山東科技大學(xué) 44 involves fluid mechanics, heat transfer, mass transfer and chemical reactions and other processes, and the stirrer is in order to make the mixing media device is suitable for the flow field and the input mechanical energy to it. The mixer is also called Mixer, or Agitator, Stirrer. Also includes the solid particles suspended in the solution or the solution into emulsion evenly stirred broad, it includes the disperser and homogenizer. Some stirrer can produce shear force greatly, to obtain refined particle colloid mill more than 10 times larger than the submicron suspension, therefore, can be used for fine food and chemical manufacturing, cosmetic cream, salad sauce. Petrochemical industry is monly used in polyvinyl chloride alloy, CIS polybutadiene rubber in autoclave, autoclave, stripping vessel, collectively referred to as the mixing vessel (Agitatored Vessels, or Stirred Vessels).Stirrer and stirring container in device of economies of scale and diversification of varieties at the same time, it bee more and more large. Since Hitachi production since 1949 the production of stirred tank reactor for terephthalic acid, polyvinyl chloride, styrene monomer, the polypropylene unit production of the stirred tank reactor near 4000, the maximum capacity of the container to 576m, maximum diameter of 7620 cylindrical part mm, the maximum length of making 44380 mm design pressure, maximum 28 the design of MPa, the highest temperature making 530 cI two, motor power up to 1100 kW. Based on the requirements of the development of energy saving, variable frequency motor, seal small shear resistance blade, with new sealing instead of mechanical seals and packing, with magic drive instead of mechanical transmission. Reduce product cost, reduce the cost of the overall repair and maintenance and improve equipment repair requirements based on the average time interval, greatly improving the service life of equipments. To meet the health and reduce the cleaning and sterilization costs based on the requirements, implementation of the CIP (clean in place) and SIP (in situ sterilization), improve the level of automation, avoids human contact with the product, reduce manual operation and standby time, greatly improving the product39。而 PID控制理論在實際中的不斷應(yīng)用,也會使測控系統(tǒng)的處理功能得到完善和進一步的發(fā)展。 在本次設(shè)計中,應(yīng)用了虛擬儀器技術(shù)和控制理論,這兩種技術(shù)和理論都是具有很廣闊發(fā)展前景的,它們的發(fā)展也將推動包括交流電機轉(zhuǎn)速控制系統(tǒng)在內(nèi)的各種工業(yè)或其他生產(chǎn) 系統(tǒng)的不斷發(fā)展。由于本課題仍處于初級設(shè)計階段,在虛擬儀器程序設(shè)計設(shè)計方面也存在不足。 由于本人的所學(xué)有限,在本次系統(tǒng)設(shè)計中,還存在很多問題。在虛擬儀器技術(shù)的實現(xiàn)方面做了很多工作。 本設(shè) 計針對目前我國 攪拌機 現(xiàn)狀,提出了一種采用新技術(shù)、新理論的電機轉(zhuǎn)速測控系統(tǒng)的設(shè)計與實現(xiàn)方法。需要注意的是到最后的時候不需要 激活 ,點 “完成 ”就可以了 。基于 LabvIEw 的數(shù)據(jù)采集系統(tǒng)一般 如下圖 : 山東科技大學(xué) 32 采集系統(tǒng)圖 DAQ 函數(shù)面板位置: 數(shù)據(jù)采集硬件 驅(qū)動程序的用戶接口 硬件驅(qū)動程序 Labview 開發(fā)環(huán)境 山東科技大學(xué) 33 圖 312 DAQ 函數(shù)面板 labview 的安裝 雙擊 “ ” 出現(xiàn)下邊的界面 山東科技大學(xué) 34 單擊 “ ”,會在 的空白出現(xiàn)數(shù)字, 點擊 , 然后點擊 ,出現(xiàn) 在 “文件名 ”中輸入個名字(我這里輸入 “l(fā)ab”),然后把該文件放在 C 盤別的目錄下(不要放在桌面,我放在 c 盤主目錄)否則會出錯。連接端口通常隱藏在圖標中。 功能模板 (Functions Palette)包含了 LabVIEW中所有的功能節(jié)點,這些節(jié)點山東科技大學(xué) 31 用于創(chuàng)建 LabVIEW的框圖程序,功能模板位于 VI的框圖程序窗口中 后面板和函數(shù)面板 圖標和連接端口可以將一個虛擬儀
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