基于逆向工程與CFD的礦井主扇風(fēng)機(jī)流場(chǎng)分析及仿真研究
本文選題:主扇風(fēng)機(jī) 切入點(diǎn):逆向工程 出處:《中國(guó)礦業(yè)大學(xué)(北京)》2013年博士論文
【摘要】:礦井主扇風(fēng)機(jī)是煤礦安全生產(chǎn)的關(guān)鍵技術(shù)裝備,礦井主扇風(fēng)機(jī)能否正常運(yùn)轉(zhuǎn)關(guān)系到整個(gè)礦井的生產(chǎn)安全。作者所在課題組提出了礦用設(shè)備健康維護(hù)系統(tǒng),針對(duì)礦井軸流風(fēng)機(jī)進(jìn)行建模仿真研究,分析其性能以及故障特性。 首先對(duì)礦井軸流風(fēng)機(jī)結(jié)構(gòu)進(jìn)行建模,由于礦井軸流風(fēng)機(jī)的結(jié)構(gòu)參數(shù)資料不詳,尤其葉輪部分的參數(shù)生產(chǎn)廠家無(wú)法提供,本文采用了逆向工程方法對(duì)風(fēng)機(jī)進(jìn)行逆向建模,即通過(guò)三維掃描獲取其點(diǎn)云數(shù)據(jù),用建模軟件對(duì)其數(shù)據(jù)進(jìn)行處理,同時(shí)對(duì)其進(jìn)行反求建模,進(jìn)一步對(duì)模型進(jìn)行網(wǎng)格劃分,導(dǎo)入到流體仿真軟件中進(jìn)行求解。 采用FLUENT軟件對(duì)礦井軸流風(fēng)機(jī)正常狀態(tài)下的流場(chǎng)進(jìn)行仿真求解,通過(guò)對(duì)不同工況下的流場(chǎng)進(jìn)行模擬獲得其流場(chǎng)特性曲線,并對(duì)其特性進(jìn)行分析,為礦井軸流風(fēng)機(jī)運(yùn)行狀態(tài)下的優(yōu)化提供參考。本文對(duì)礦井軸流風(fēng)機(jī)的典型故障進(jìn)行流場(chǎng)仿真,分析其故障下的流場(chǎng)特性,以及可能導(dǎo)致故障的原因和故障發(fā)展規(guī)律,為礦井主扇風(fēng)機(jī)的預(yù)知維護(hù)提供重要的依據(jù)。
[Abstract]:Mine main fan is the key technical equipment of coal mine safety production. Whether the mine main fan can run normally or not is related to the production safety of the whole mine. The modeling and simulation of mine axial fan is carried out, and its performance and fault characteristics are analyzed. First of all, the structure of mine axial fan is modeled. Because the information of the structure parameters of mine axial fan is not known, especially the parameter manufacturer of impeller part can not be provided, the reverse engineering method is adopted in this paper. The point cloud data is acquired by 3D scanning and processed by modeling software. At the same time, the model is modeled by reverse modeling, and the model is further meshed and solved by introducing it into fluid simulation software. The flow field of mine axial fan under normal condition is simulated by FLUENT software. The characteristic curve of flow field is obtained by simulating the flow field under different working conditions, and the characteristics of the flow field are analyzed. In this paper, the flow field simulation of typical fault of mine axial fan is carried out, the characteristics of flow field under the fault, the cause of the failure and the development rule of the fault are analyzed. It provides an important basis for the predictive maintenance of mine main fan.
【學(xué)位授予單位】:中國(guó)礦業(yè)大學(xué)(北京)
【學(xué)位級(jí)別】:博士
【學(xué)位授予年份】:2013
【分類號(hào)】:TD724
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