【摘要】：目前食品、醫(yī)療、電動汽車等行業(yè)領(lǐng)域所需要的壓縮氣體必須潔凈無油。而無油渦旋壓縮機作為第四代最先進的容積式流體機械,具有效率高、噪音低、結(jié)構(gòu)簡單、節(jié)能和高可靠性等優(yōu)點,目前廣泛地應(yīng)用于上述領(lǐng)域。為了更好地了解無油渦旋壓縮機的變形規(guī)律,提高渦旋壓縮機的效率,本文采用有限元分析法對渦旋盤在實際工況下的變形和應(yīng)力進行了詳細分析。主要研究內(nèi)容如下:(1)在渦旋型線幾何理論的基礎(chǔ)上,模擬計算了無油渦旋壓縮機從吸氣開始到排氣結(jié)束整個過程中工作腔容積隨主軸轉(zhuǎn)角的變化;分析計算了動渦旋盤所受氣體力和自轉(zhuǎn)力矩隨主軸轉(zhuǎn)角的變化;對無油渦旋壓縮機自潤滑密封機構(gòu)的工作原理進行了詳細的闡述;(2)通過在靜渦盤背面布置溫度和壓力傳感器測得每個腔室的溫度和壓力,將測量得到的溫度與壓力作為有限元分析的輸入條件,通過對動渦盤進行熱分析、結(jié)構(gòu)分析以及多物理場耦合分析,結(jié)果表明:渦旋齒最大變形量位于齒頭部位,耦合場的最大變形量為0.169mm;采用控制變量的方法對渦旋盤在不同齒高、齒厚的條件下進行了對比分析,結(jié)果表明:渦旋齒的變形量隨著齒高的增大而變大,隨齒厚的增大而減小;(3)在Solidworks中完成了動靜渦旋盤的模擬裝配,采用有限元法對不同軸向和徑向間隙裝配下的渦旋盤進行了詳細分析,得到了無油渦旋壓縮機的最佳裝配間隙,間隙值為:軸向間隙為5μm,徑向間隙為20μm;對比分析了靜渦旋盤外側(cè)定位銷的個數(shù)以及位置對靜渦盤的變形影響;通過搭建的測試系統(tǒng)對0.6m3/min的無油渦旋壓縮機進行了性能測試。
[Abstract]:The compressed gases needed in food, medicine, electric vehicles and other industries must be clean and oil free. The oil-free scroll compressor, as the fourth generation of the most advanced displacement fluid machinery, has the advantages of high efficiency, low noise, simple structure, energy saving and high reliability. In order to better understand the deformation law of the oil-free scroll compressor and improve the efficiency of the scroll compressor, the deformation and stress of the scroll disk under the actual working conditions are analyzed in detail by using the finite element analysis method. The main research contents are as follows: (1) on the basis of the geometry theory of the vortex line, the variation of the volume of the working chamber with the spindle rotation angle during the whole process from the beginning of suction to the end of exhaust is simulated and calculated; The variation of the air force and the rotation moment of the moving vortex disk with the spindle rotation angle is analyzed and calculated. The working principle of self-lubricating sealing mechanism of oil-free scroll compressor is described in detail. (2) temperature and pressure of each chamber are measured by placing temperature and pressure sensor on the back of static vortex disk. Taking the measured temperature and pressure as the input conditions of finite element analysis, the thermal analysis, structural analysis and multi-physical field coupling analysis of the moving vortex disk are carried out. The results show that the maximum deformation of the vortex tooth is located at the head position of the tooth. The maximum deformation of the coupling field is 0.169mm. A comparative analysis of the vortex disk with different tooth height and tooth thickness is carried out by using the control variable method. The results show that the deformation of the vortex tooth increases with the increase of the tooth height. (3) the simulation assembly of the static and static vortex disk is completed in Solidworks. The finite element method is used to analyze the vortex disk with different axial and radial clearance in detail, and the optimum assembly clearance of the oil-free scroll compressor is obtained. The clearance value is 5 渭 m for axial clearance and 20 渭 m for radial clearance. The effects of the number and position of positioning pin on the deformation of static vortex disk are compared and analyzed. The performance of 0.6m3/min oil-free scroll compressor is tested by the test system.
【學(xué)位授予單位】：蘭州理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號】：TH45

【參考文獻】

相關(guān)期刊論文 前10條

1 殷俊;楊美傳;馮鑒;;基于熱應(yīng)力場耦合的渦旋壓縮機動渦盤有限元分析[J];壓縮機技術(shù);2011年06期

2 嚴(yán)黎堅;黃志剛;張京;;渦旋壓縮機曲軸有限元分析[J];電器;2011年S1期

3 劉興旺;余建平;齊學(xué)義;李超;;迷宮式渦旋齒和無迷宮渦旋齒切向密封性能對比[J];機械工程學(xué)報;2010年18期

4 智慶東;趙海年;袁金雷;;螺桿壓縮機密封泄漏分析與對策[J];石油化工設(shè)備;2009年S1期

5 楊廣衍;盛林;張秀麗;李春燕;;無油渦旋真空泵溫度場、應(yīng)力場和熱變形的ANSYS模擬[J];真空;2008年05期

6 王立存;陳進;;渦旋壓縮機通用渦旋型線控制方程的必要性研究[J];中國機械工程;2008年10期

7 趙遠揚;李連生;馬麗強;卜高選;束鵬程;;散熱對無油渦旋空氣壓縮機性能影響的實驗研究[J];西安交通大學(xué)學(xué)報;2008年01期

8 李超;趙榮珍;劉振全;;驅(qū)動軸承內(nèi)嵌式渦旋壓縮機動力特性分析[J];蘭州理工大學(xué)學(xué)報;2007年05期

9 奧達也;石井德章;阿南景子;澤井清;飯?zhí)锏?森本敬;跆，

本文編號：2249433