【摘要】：隨著全球工業(yè)化的高速發(fā)展,溫室效應(yīng)日益嚴(yán)重,作為能源消耗主力軍的交通建設(shè)行業(yè)也開始針對(duì)節(jié)能、高效率進(jìn)行改革。隨著瀝青溫拌技術(shù)的高速發(fā)展,其節(jié)能、低污染的優(yōu)勢(shì)使得其在道路建設(shè)中所占的比重越來越大。本文針對(duì)在溫拌瀝青混合料生產(chǎn)工程中使用的溫拌劑添加設(shè)備進(jìn)行設(shè)計(jì),通過無刷直流電機(jī)帶動(dòng)柱塞泵向混合器添加溫拌劑,以實(shí)現(xiàn)在進(jìn)行溫拌劑添加的同時(shí)完成溫拌劑與瀝青的預(yù)混合。首先,對(duì)溫拌劑添加設(shè)備的整體結(jié)構(gòu)進(jìn)行設(shè)計(jì)。介紹無刷直流電機(jī)、泵、流量計(jì)、壓力傳感器及液位計(jì)的工作原理,并進(jìn)行滿足本設(shè)備工作要求的部分部件選型。為滿足實(shí)際工程要求,本設(shè)備的使用存在待機(jī)與工作兩種狀態(tài),當(dāng)設(shè)備處于待機(jī)狀態(tài)時(shí),無刷直流電機(jī)依舊高速運(yùn)轉(zhuǎn),以保持溫拌劑的流動(dòng)性。其次,對(duì)設(shè)備中混合器單元進(jìn)行建模及流場(chǎng)分析。通過SolidWorks2010進(jìn)行幾何模型設(shè)計(jì),進(jìn)而在CFD-FLUENT平臺(tái)進(jìn)行混合器流場(chǎng)分析,通過混合器管道內(nèi)及出口處的瀝青濃度分布驗(yàn)證溫拌劑與瀝青的混合效果,并進(jìn)行混合器構(gòu)造、仿真初始參數(shù)設(shè)置的改進(jìn),最終獲得混合器參數(shù)。最后,對(duì)本設(shè)備的控制系統(tǒng)進(jìn)行設(shè)計(jì)。以STM32F407ZGT6控制芯片為核心,配以觸摸屏、電機(jī)功率驅(qū)動(dòng)電路、反電動(dòng)勢(shì)過零檢測(cè)電路等完成整個(gè)溫拌劑添加設(shè)備控制模塊的硬件設(shè)計(jì)及制作。
[Abstract]:With the rapid development of global industrialization, Greenhouse Effect is becoming more and more serious. As the main force of energy consumption, transportation construction industry has also begun to reform energy saving and high efficiency. With the rapid development of asphalt warm mixing technology, its advantages of energy saving and low pollution make it more and more important in road construction. In this paper, the equipment of adding warm agent used in the production project of warm mix asphalt mixture is designed, and the plunger pump is driven by brushless DC motor to add warm mix agent to mixer. In order to achieve the addition of warm mixing agent at the same time to complete the pre-mixing of warm mix agent and asphalt. First of all, the whole structure of the equipment for adding warm mix agent is designed. This paper introduces the working principle of brushless DC motor, pump, Flowmeter, pressure sensor and liquid level gauge. In order to meet the practical engineering requirements, there are standby and working conditions in the use of the equipment. When the equipment is in standby state, the brushless DC motor still runs at high speed in order to maintain the fluidity of the warm mix agent. Secondly, the mixer unit is modeled and the flow field is analyzed. The geometric model is designed by SolidWorks2010, and the flow field of mixer is analyzed on CFD-FLUENT platform. The mixing effect of warm mix agent and asphalt is verified by the asphalt concentration distribution in the pipe and outlet of mixer, and the mixer is constructed. Finally, the mixer parameters are obtained by the improvement of the initial parameter setting. Finally, the control system of this equipment is designed. With STM32F407ZGT6 control chip as the core, with touch screen, motor power drive circuit, anti-EMF zero-crossing detection circuit and so on, the hardware design and manufacture of the control module of the whole warm-mixed agent adding equipment are completed.
【學(xué)位授予單位】：沈陽工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：U414

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