本文選題：無氣閥擺動(dòng)轉(zhuǎn)子壓縮機(jī)　切入點(diǎn)：泄漏　出處：《廣西大學(xué)》2017年碩士論文

【摘要】：傳統(tǒng)滾動(dòng)轉(zhuǎn)子壓縮機(jī)因具有體積小、重量輕和結(jié)構(gòu)簡(jiǎn)單等諸多優(yōu)點(diǎn)而被廣泛應(yīng)用于制冷空調(diào)系統(tǒng)中。隨著壓縮機(jī)向高轉(zhuǎn)速方向的發(fā)展,滾動(dòng)轉(zhuǎn)子壓縮機(jī)的性能和可靠性下降,其中重要的原因是受到排氣閥的影響。本文介紹的無氣閥擺動(dòng)轉(zhuǎn)子壓縮機(jī)是基于傳統(tǒng)擺動(dòng)轉(zhuǎn)子壓縮機(jī)的結(jié)構(gòu)上開發(fā)得到的新型旋轉(zhuǎn)壓縮機(jī),這種壓縮機(jī)成功地去掉了氣閥,克服了氣閥帶來的不良影響。在詳細(xì)闡述了無氣閥擺動(dòng)轉(zhuǎn)子壓縮機(jī)的結(jié)構(gòu)特點(diǎn)和工作原理后,本文對(duì)其工作過程建立了數(shù)學(xué)模型,分析了它的熱力學(xué)過程和動(dòng)力學(xué)過程。由幾何關(guān)系計(jì)算得出了無氣閥擺動(dòng)轉(zhuǎn)子壓縮機(jī)的容積系數(shù)為0.97。通過建立泄漏模型計(jì)算得到各泄漏通道的泄漏量及所占百分比,結(jié)果得出無氣閥擺動(dòng)轉(zhuǎn)子壓縮機(jī)泄漏最嚴(yán)重的部位為徑向間隙,泄漏達(dá)到66.97%,其次為擺動(dòng)轉(zhuǎn)子端部間隙的泄漏占29.88%,泄漏系數(shù)為0.90。通過確定各摩擦部位的摩擦狀態(tài),計(jì)算得到各摩擦部位摩擦損失及所占百分比,結(jié)果得出無氣閥擺動(dòng)轉(zhuǎn)子壓縮機(jī)摩擦損失最嚴(yán)重的部位為擺動(dòng)轉(zhuǎn)子與偏心輪之間以及兩端軸承處,分別占總摩擦損失的49.4%和31.3%;其次為擺桿與導(dǎo)軌間的摩擦損失和偏心輪軸止推面與下端蓋間的摩擦損失,分別占總摩擦損失的7.85%和7.64%,機(jī)械效率為0.90。最后運(yùn)用SolidWorks Simulation軟件分析了無氣閥擺動(dòng)轉(zhuǎn)子壓縮機(jī)偏心輪軸和擺動(dòng)轉(zhuǎn)子在最大載荷下的靜態(tài)強(qiáng)度,結(jié)果表明壓縮機(jī)能夠安全運(yùn)行。本文所做的工作對(duì)無氣閥擺動(dòng)轉(zhuǎn)子壓縮機(jī)的開發(fā)具有指導(dǎo)作用。
[Abstract]:Traditional rolling rotor compressor is widely used in refrigeration and air conditioning system because of its small volume, light weight and simple structure. With the development of compressor to high speed, the performance and reliability of rolling rotor compressor decline. The main reason is that it is influenced by the exhaust valve. This paper introduces a new type of rotary compressor based on the structure of the traditional oscillating rotor compressor, which has successfully removed the valve. After expounding the structure characteristic and working principle of the oscillating rotor compressor without valve in detail, the mathematical model of its working process is established in this paper. The thermodynamic and dynamic processes of the compressor are analyzed. The volumetric coefficient of the valve free swing rotor compressor is 0.97. The leakage volume and the percentage of each leakage channel are calculated by establishing the leakage model. The results show that radial clearance is the most serious leakage part of the valve free oscillating rotor compressor, and the leakage reaches 66.97, followed by 29.888.The leakage coefficient is 0.90. the friction state of each friction part is determined by determining the friction state of each friction part, the second is the leakage of the end clearance of the oscillating rotor, and the leakage coefficient is 0.90. The results show that the most serious friction loss is between the oscillating rotor and the eccentric wheel and between the two ends of the bearing, the results show that the most serious friction loss is between the oscillating rotor and the eccentric wheel, as well as between the two ends of the bearing. 49.4% and 31.3% of the total friction loss respectively, followed by the friction loss between the pendulum rod and the guide rail, and the friction loss between the thrust surface of the eccentric wheel shaft and the lower end cover, the second is the friction loss between the pendulum rod and the guide rail. It accounts for 7.85% and 7.64% of the total friction loss, respectively. The mechanical efficiency is 0.90. Finally, the static strength of the eccentric axle and the swing rotor of the valve free swing rotor compressor under the maximum load is analyzed by SolidWorks Simulation software. The results show that the compressor can operate safely. The work done in this paper can guide the development of the valve-free swing rotor compressor.
【學(xué)位授予單位】：廣西大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TH45

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