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海流能发电机设计论文+cad图纸

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机电设计

编号:7981

海流能发电机设计

   

目前,国际性的能源危机和持续环境恶化使各国纷纷加大对可再生能源的开发力度。但随着人口增加等原因,可利用空余陆地面积急剧减少,人类已把目光转向海洋能源的开发利用。海洋能源是一种永不枯竭且无任何污染的“可再生性"能源。它是以潮汐、波浪、海流、温度差、盐度差等形式表达的物理、化学能量,为人类提供了大量宝贵能源。其中潮汐能、波浪能、温差能和盐差能的开发成本较高、发电效率相对低、规模开发利用难度大。

海流能是指海水流动的动能,其变化具有规律性,可预测性等特点。其成因是由太阳、地球及月亮相对位置及地球自转而引起的海水表层水平移动。我们选择了开发成本

相对较低,开发利用可行性较高的海流能做为研究对象,但海流能的利用在我国以及国际上都是一个崭新的课题。

在我国边远海域与沿海地区有为数众多电网无法覆盖的岛屿、哨所及村镇,那里的用电和淡水供应一直是个难题。如能利用每天持续不断的海流能提供电能和制备淡水所

需的能量,对于改善那里的生活条件不失为一种最现实的办法。海流能的利用要求整个发电装置浸泡在海水中,海流能发电机的工作环境决定了它所面临的难点,因此我们设想了一种新型的海流发电装置并制作了模型试图解决这些问题。关键词海流能;海流模拟试验;海流能发电装置 

 

Abstract

With the International energy crisis and the continued deterioration of the environment, Many countries increase the development of renewable energy today.However, with the population and other reasons,we can make use of the land area of sharp decline in spare. People have eyes to development and utilization of ocean energy.Ocean energy is a kind of renewable energy which is inexhaustible and no pollution.It is Physical and chemical energy expressed by Tides,waves,currents,temperature and salinity difference,and people Can obtain a lot of valuable energy from it.Tidal energy,wave energy,temperature energy and salinity energy can be bad to the development of high cost,relatively low efficiency of power  generation,and the scale of the development and utilization of difficulty.

Currents can flow refers to the kinetic energy of water.It is caused by the sail,the relative positions of Earth and the moon and the earth’s rotation.We have chosen current energy which is the relatively low development costs,development and utilization of the high feasibility.But the exploit of Current energy is a new subject not only in China but also in the other countries.

 There are many islands,post and villages in the remote sea areas and coastal areas, which are no power.And it is a problem about electricity and fresh water supply.If we can make use of daily continuous Current energy,it will be the most realistic way to improve their living conditions.Power devices immersed in seawater when We make use of Current energy, and the working environment of current energy generator determines the difficulties it faces. Therefore,we envisaged a new type of ocean current power generation devices and produced a model to deal with it.

 

 

Key words:Current energy;Current simulation test;Current generation devices

 

目录

1. 绪论 5

1.1  海流能研究的背景 5

1.2.1  能源和环境危机 6

1.2.2  海流能研究的目的和意义 7

1.2  国内外海流能发电技术进展 8

1.2.1 传统海洋能利用技术 8

1.2.2  新型海流发电技术发展 9

1.2.3  垂直轴式海流能发电技术 9

1.2.4  水平轴式海流能发电技术 12

1.3  小结 14

2.  海流能发电机的工作原理及基本结构 15

2.1  海流能发电机的基本功能构成 16

2.2  海流能发电机的工作原理 17

2. 3  海流能发电机的基本结构 18

    231  叶轮 18

232  轮毂 18

233  主轴 19

234  齿轮箱 19

235  发电机 20

236  密封系统 22

237  对流装置 20

238  塔架 20

3.  海流能发电机主要零件的设计计算 21

3.1  确定设计目标 25

    311  海流能发电机总体设计方案 24

312  海流能发电机零件设计方案 26

3.2  海流能发电机设计中的相关理论及概念 27

    321  海流能发电机流体力学设计理论基础 27

322  叶片设计中的基本概念 30

33.海流能发电机叶轮系统设计计算 31

    331  叶轮的总体设计 31

332  叶片的设计计算 34

    333  轮毂的选择 36

3.4  海流能发电机增速器的设计计算 37

    341  传动方案的确定 37

342  增速器基本设计要求及设计步骤 38

343  传动原理图 39

344  低速齿轮传动设计 39

345  高速齿轮传动设计 43

3.5  塔架的设计 47

3.6  密封系统的设计 48

3.7  制动系统的设计 48

3.8  主梁载荷计算及强度校核 48

    381  流体动力载荷 49

382  重力载荷 49

    383  惯性力载荷 49

    384  主梁强度校核 51

总结 53

致谢 54

参考文献 55