空气往复压缩机设计

本科毕业设计（论文）通过答辩

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-6/10空气往复压缩机。

关键词：活塞式压缩机; 热力计算; 动力计算;气缸；曲轴

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本科毕业设计（论文）通过答辩

The design of V－6/10 air reciprocating compressor

Abstract：Reciprocating compressor is a common type machine, used in the industry .V- type of piston compressors is a kind of reciprocating compressor, belong to the compressor , utilize the pistons in the cylinder moving to squeeze on the gas ,squeezed the gas pressure. Thermal calculation and dynamical computation is basic of compressor design’calculation, is also an important woke, according to medium, displacement, pressure of task-book, by calculating getting related parameters of compressors, such as levels, columns, size of cylinder, shaft power, by dynamical computation getting stressed status of a piston type compression, due to reduce the vibration is very important. heat calculation and dynamical computation of the piston type compressor, which is providing design data. The calculations reflect exactly the design level of the compressor.

Researching works is in order to the compressor have better mechanical properties, improve the efficiency and reduce energy consumption, prolong the machine the useful life. Through dynamical computation correction the size of crew, members, to improve the technical failure of the compressor, 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 paragraph of a V-6 /10 reciprocating air compressor required to satisfy users, small volume, efficiency and long usage life.

Keywords:piston compressor; thermal calculation; dynamical computation; cylinder; crankshaft

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本科毕业设计（论文）通过答辩

目录

摘要 (Ⅰ)

目录 (Ⅲ)

1 引言 (1)

1.1 压缩机设计的意义 (1)

1.2 活塞压缩机的工作原理 (1)

1.3 活塞压缩机的分类 (1)

1.4 压缩机的发展前景 (1)

1.5 压缩机设计说明 (2)

2 总体设计 (4)

2.1 总体设计原则 (4)

2.2 结构方案的选择 (4)

2.2.1 气缸排列型式的选择 (4)

2.2.2 运动机构的结构及选择 (5)

2.2.3 级数选择和各级压力比的分配 (5)

2.2.4 转速和行程的确定 (6)

3 热力计算 (7)

3.1 确定各级的容积效率 (7)

3.1.1 确定各级的容积系数 (7)

3.1.2 选取压力系数 (7)

3.1.3 选取温度系数 (7)

3.1.4 泄漏系数 (7)

3.2 确定析水系数 (7)

3.3 各级的行程容积 (8)

3.4 气缸直径的确定 (8)

3.5 各级名义压缩比 (9)

3.6 新的容积系数 (9)

3.7新的相对余隙系数 (9)

3.8活塞力的计算 (9)

3.9确定各级的排气压力 (10)

3.10计算轴功率 (10)

3.11驱动机的选择 (10)

4动力计算 (12)

4.1压缩机中的作用力 (12)

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