矿用轴流式通风机结构设计

总装图

此设计采用对选矿用通风机，采用两极电机驱动的方式，对对旋风机的优点进行了进一步的了解，故采用对旋风机。
根据所给的设计参数及有关的设计要求。具体内容包括：通风方式的选择，总体结构方案的确定，叶轮的设计，疏流罩、扩散器和集流器的设计和选择，通风机消声装置的设计。本次设计更加注意对旋通风机的消音问题，注重了电动机的隔爆设计。

关键词:对旋;防暴;轴流通风机;消音器

Abstract
The structural design, the ventilator tomography belongs to mine axial fan, considering the mining will have plenty of harmful gases, and can cause high concentrations of gas explosion. Along with the increase of mining depth, temperature will gradually rise, these factors for underground work personnel's health and safety of coal production are extremely detrimental to the more serious, the working personnel of underground mine safety hazards and tremendous. A survey of the current trend of domestic, the design of the concentration polarization, with fan motor driving mode, on the merits of the whirlwind machine, the further understanding of cyclone machine.
According to the design parameters and design requirements. Contents include: overall selection of ventilation, design, structural design, flow of the impeller, diffuser, and runoff, design and selection of the design of fan silencer. The design of the ventilator to pay more attention to the problem, pay attention to the motor deadened the isolation design.

Keywords To spin riot axial fan muffler

目录
摘要I
Abstract II

第1章绪论1
1.1选题的意义1
1.2国内外现状和发展趋势1
1.3设计的主要内容3
第2章结构设计方案的选择和确定4
2.1结构方案图的选择4
2.2比较两种结构的优缺点5
第3章通风机总体结构设计10
3.1通风方式的确定10
3.1.1抽出式通风10
3.2.2压入式通风10
3.2结构方案简图设计12
3.3主要结构形式的选取12
3.3.1扩散器13
3.3.2集流器与流线罩14
3.3.3叶轮14
3.3.4外壳15
3.3.5确定通风机各级风压比15
3.3.6选择电动机的功率和型号15
第4章叶轮的结构设计18
4.1第一级叶轮的设计18
4.1.1确定叶轮毂比及轮毂直径18
4.1.2确定计算截面20
4.1.3叶片几何尺寸的计算20
4.1.4叶片的绘制23
4.1.5叶轮强度计算25
4.1.6键的校核28
4.2第二级叶轮的设计29
4.2.1确定叶轮毂比及轮毂直径29
4.2.2确定计算截面30
4.2.3叶片几何尺寸的计算31
4.2.4叶片的绘制33
第5章主要结构部件的设计选型36
5.1集流器与流线罩的设计36
5.1.1集流器的设计36
5.1.2流线罩的设计36
5.2扩散器的设计38
5.3通风机轴向间隙和径向间隙38
5.3.1径向间隙的计算38
5.3.2轴向间隙的计算39
5.4风筒的选择40
5.4.1风筒选用要求40
5.4.2局部通风机的风筒选型41
第6章消声器的设计42
结论44
致谢45
参考文献46
附录47

CONTENTS

Abstract 2

Chapter 1 Introduction 1
1.1 The topic 1
1.2 Status and development trend 1
1.3 The main contents of the design 3
Chapter 2 The selection of design scheme and structure 4
2.1 Structure scheme selection of diagram 4
2.2Compare the advantages and disadvantages of the two kinds of structure 5
Chapter 3 Fan structural design 10
3.1 Ventilation 10
3.1.1 Drawer-type ventilation 10
3.2..2 In ventilated 10
3.2 Structure scheme design diagram 12
3.3 The main structure form 12
3.3.1 Diffuser 13
3.3.2 Collecting and streamline mask 14
3.3.3 Impeller 14
3.3.4 Shell 15
3.3.5 Determine the ventilator than at wind 15
3.3.6 Choose the motor power and models 15
Chapter 4 Impeller structure design 18
4.1 The first level of the impeller design 18
4.1.1 Determine diameter wheel rims leaves ratio 18
4.1.2 Determine the computation section 20
4.1.3 Blade geometry size calculation 20
4.1.4 The blade 23
4.1.5 Impeller strength calculation 25
4.1.6 The key 28
4.2 Article 2 the impeller's design 29
4.2.1 Determine diameter wheel rims leaves ratio 29
4.2.2 Determine the computation section 30
4.2.3 Blade geometry size calculation 31
4.2.4 The blade 33
Chapter 5 The main structure parts design selection 36
5.1 Collecting and streamline cover design 36
5.1.1 Collecting design 36
5.1.2 Streamline cover design 36
5.2 Diffuser design 38
5.3 Fan radial clearance and axial clearance 38
5.3.1 Radial clearance 38
5.3.2 The axial clearance 39
5.4 The washroom 40
5.4.1 Hair chooses requirements 40
5.4.2 The selection of local-ventilator hair-dryer 41
Chapter 6 The muffler design 42
Theory 44
Cause 45
Participation in exam 46
Attached 47

第1章绪论
煤矿井工生产是地下作业，自然条件比较复杂。地面空气在进入井下并流经各作业场所的过程中，将掺入有毒有害气体和矿尘，成分逐渐发生变化。同时，由于地热作用，人体和机械的散热、水分的蒸发等，井下空气的温度和湿度都会显着提高，造成不良的气候条件。因此，对矿井必须进行通风。

第二级风筒

第一季叶轮图