安全閥的動態(tài)特性仿真及流場分析
發(fā)布時間：2018-11-19 20:35
【摘要】：安全閥在保證井下煤礦安全生產(chǎn)方面有著不可言喻的重要性。鑒于安全閥的使用條件、工作狀態(tài)以及系統(tǒng)介質(zhì)的復雜因素,將流體動力學分析軟件FLUENT和三維建模軟件CATIA等相結(jié)合進行仿真分析,研發(fā)出高質(zhì)量、高標準的大流量安全閥,為保證液壓支架系統(tǒng)的穩(wěn)定工作和煤礦的安全生產(chǎn)都有著一定的現(xiàn)實意義。本文所針對研究對象為液壓支架用德國進口安全閥,介紹了其結(jié)構(gòu)與工作原理,并且對安全閥的靜態(tài)分析得出一些重要的仿真參數(shù)。利用仿真軟件AEMSim對其進行動態(tài)特性分析,并繪制了壓力曲線圖和閥芯位移曲線圖,找到了影響其性能優(yōu)劣的一些關(guān)鍵因素;然后采用WORKBENCH軟件把在CATIA基礎上建好的安全閥三維模型的三維流體模型摳出來并利用ICEM進行網(wǎng)格劃分,最后倒入流體動力學分析軟件FLUENT對其進行仿真,繪制出其在不同邊界條件下、不同開口度下的總壓云圖、動壓云圖、速度云圖以及速度矢量圖,通過比對分析結(jié)果所得到的結(jié)論,可為以后安全閥的設計工作提供一些參考。
[Abstract]:The safety valve has the indescribable importance in ensuring the underground coal mine safe production. In view of the operating conditions, working state and complex factors of the system medium, the hydraulic dynamic analysis software FLUENT and the 3D modeling software CATIA are combined to simulate and analyze the safety valve, and a high quality and high standard large flow safety valve is developed. In order to ensure the stability of hydraulic support system and the safety of coal mine production has certain practical significance. The structure and working principle of German imported safety valve for hydraulic support are introduced in this paper, and some important simulation parameters are obtained by static analysis of safety valve. The simulation software AEMSim is used to analyze its dynamic characteristics, and the pressure curve and valve core displacement curve are plotted, and some key factors affecting its performance are found. Then WORKBENCH software is used to extract the three-dimensional fluid model of the safety valve built on the basis of CATIA, and ICEM is used to mesh it. Finally, the fluid dynamics analysis software FLUENT is poured into the software to simulate it. The total pressure cloud map, dynamic pressure cloud map, velocity cloud map and velocity vector diagram under different boundary conditions and different openings are drawn. The conclusions obtained by comparing the analysis results can provide some references for the design work of the safety valve in the future.
【學位授予單位】：西安科技大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TD355.4
本文編號：2343357
[Abstract]:The safety valve has the indescribable importance in ensuring the underground coal mine safe production. In view of the operating conditions, working state and complex factors of the system medium, the hydraulic dynamic analysis software FLUENT and the 3D modeling software CATIA are combined to simulate and analyze the safety valve, and a high quality and high standard large flow safety valve is developed. In order to ensure the stability of hydraulic support system and the safety of coal mine production has certain practical significance. The structure and working principle of German imported safety valve for hydraulic support are introduced in this paper, and some important simulation parameters are obtained by static analysis of safety valve. The simulation software AEMSim is used to analyze its dynamic characteristics, and the pressure curve and valve core displacement curve are plotted, and some key factors affecting its performance are found. Then WORKBENCH software is used to extract the three-dimensional fluid model of the safety valve built on the basis of CATIA, and ICEM is used to mesh it. Finally, the fluid dynamics analysis software FLUENT is poured into the software to simulate it. The total pressure cloud map, dynamic pressure cloud map, velocity cloud map and velocity vector diagram under different boundary conditions and different openings are drawn. The conclusions obtained by comparing the analysis results can provide some references for the design work of the safety valve in the future.
【學位授予單位】：西安科技大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TD355.4
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