文档介绍：密级:
NANCHANG UNIVERSITY
学士学位毕业设计
计算说明书
THESIS OF BACHELOR
( 2011—2015 年)
题目 VW-
学院: 环境与化学工程学院系过控系
专业: 过程装备与控制工程
班级:
学号:
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指导教师: 职称:
起讫日期: ~
VW-
摘要:往复式压缩机是工业上使用量大、面广的一种通用机械。V型压缩机是往复活塞式压缩机的一种,属于容积式压缩机,是利用活塞在气缸中运动对气体进行挤压,使气体压力提高。
热力计算、动力计算是压缩机设计计算中基本,又是最重要的一项工作,根据任务书提供的介质、气量、压力等参数要求,经过计算得到压缩机的相关参数,如级数、列数、气缸尺寸、轴功率等,经过动力计算得到活塞式压缩机的受力情况。活塞式压缩机热力计算、动力计算的结果将为各部件图形以及基础设计提供原始数据,其计算结果的精确程度体现了压缩机的设计水平。
研究工作目的是为了使V型压缩机具有更好的机械性能,提高机械效率,减小能耗,延长使用寿命。通过压缩机动力的计算,机组、构件尺寸的不断修改,对以往压缩机出现的常见故障进行了技术改进,比如:排气量不足;气缸、活塞、活塞环磨损严重、超差、使有关间隙增大,泄漏量增大,影响到了排气量;不正常响声等一系列的问题进行改进。最终设计出这一款满足用户要求,体积小、工作效率高、使用寿命长的V-。
关键词:活塞式压缩机; 热力计算; 动力计算;气缸;曲轴
The design of VW- air pressor
Abstract: pressor is mon type machine, used in the industry .V- type of pressors is a kind of pressor, belong to pressor , utilize the pistons in the cylinder moving to squeeze on the gas ,squeezed the gas pressure.
Thermal calculation and putation is basic pressor design’ calculation, is also an important woke, according to medium, displacement, pressure of task-book, by calculating getting related parameters pressors, such as levels, columns, size of cylinder, shaft power, by putation getting stressed status of a piston pression, due to reduce the vibration is very important. heat calculation and putation of the piston pressor, which is providing design data. The calculations reflect exactly the design level of pressor.
Researching works is in order to pressor have better mechanical properties, improve the efficiency and reduce energy consumption, prolong the machine the useful life. Through putation correction the size of crew, members, to improve the technical failure of pressor, As shooting of low displacement, the cylinder, the piston, piston ring severity serious abrasion, so that increasing the related clearance, leakage rate, influence the displacement. Due to some problem of not normal noise improve. Eventually, work out this paragrap