请选择 进入手机版 | 继续访问电脑版
设为首页收藏本站

航空发动机&燃气轮机之家

 找回密码
 立即注册

QQ登录

只需一步,快速开始

扫一扫,访问微社区

搜索
热搜: 活动 交友 discuz

航空发动机的主要部件——涡轮

2017-7-26 15:57| 发布者: admin| 查看: 716| 评论: 244

摘要: 涡轮。其主要作用是:将燃烧室流出的高温、高压燃气的大部分能量转变为机械功,使涡轮高速旋转并产生大的功率,由涡轮轴输出。涡轮输出的机械功可用来驱动风扇、压气机、螺旋桨、桨扇、直升机的旋翼及其他附件。   ...

涡轮。其主要作用是:将燃烧室流出的高温、高压燃气的大部分能量转变为机械功,使涡轮高速旋转并产生大的功率,由涡轮轴输出。涡轮输出的机械功可用来驱动风扇、压气机、螺旋桨、桨扇、直升机的旋翼及其他附件。

  在航空燃气涡轮发动机中,涡轮部件所承受的热负荷、气动负荷和机械负荷都是最大的。如同压气机一样,涡轮也是由不动的静子(又称涡轮导向器)与转动的转子所组成。静子由导向器与固定它的机匣组成,转子由工作叶片、轮盘与轴组成,又称涡轮转子。一个导向器和一个涡轮转子组合成一个涡轮级。涡轮可由一个或几个涡轮级组成,分别叫做单级涡轮或多级涡轮。

  与压气机不同的是涡轮导向器在转子之前,且型面形状和气流通道与压气机也不同,两个叶片间形成的通道呈收敛形,即入口处面积比出口处面积大,燃气流在收敛通道中流过时,速度提高、压力降低。

涡轮增压工作原理:


  高温、高压燃气首先流入涡轮导向叶片,由于导向叶片通道做成进口流道面积大于出口流道面积,亦即形成收敛通道。因此,燃气是加速流过导向叶片通道的,其压强和温度都降低,在导向叶片出口处流速达到当地的声速(此处燃气温度很高,如燃气温度为1300℃时,当地声速约为800米/秒),并按叶片出口型面的角度流向工作叶片。


  如果工作叶片型面进、出口流道面积相等时,燃气流在工作叶片中的流动速度不变,只是方向变化,工作叶片在燃气的冲击作用下带着装叶片的轮盘高速旋转,这种工作方式的涡轮称为“冲击式涡轮”。

冲击式涡轮机工作原理:


  如果工作叶片型面出口流道面积小于进口流道面积即呈收敛形,燃气流过工作叶片时,不仅方向变化,而且继续膨胀,速度增加而压强及温度降低,这种工作方式的涡轮称为“反力式涡轮”。

波音飞机涡轮风扇发动机工作原理:


  一般来说,水力涡轮、蒸汽涡轮均是“冲击式涡轮”,而在航空燃气涡轮发动机中,全都采用“反力式涡轮”。


鲜花

握手

雷人

路过

鸡蛋
发表评论

最新评论

引用 游客 2018-5-27 01:29
can you buy viagra out prescription
<a href="http://viagranbdnr.com/#">viagra without prescription</a>
comprare il viagra online
[url=http://viagranbdnr.com/#]viagra without a doctors prescription[/url]
price of viagra pills
<a href="http://canadamdonlineget.com/#">canadian pharmacies that ship to the us</a>
generico del viagra en peru
[url=http://canadamdonlineget.com/#]canadian pharmacies online prescriptions[/url]
confessions viagra salesman ...
引用 游客 2018-5-26 10:20
generic viagra cialis and levitra
<a href="http://viagranbdnr.com/#">viagra without doctor</a>
where to buy viagra uk
[url=http://viagranbdnr.com/#]viagra without prescription[/url]
acheter viagra online
<a href="http://canadamdonlineget.com/#">canada pharmacies</a>
over the counter pills like viagra
[url=http://canadamdonlineget.com/#]canadian pharmacies online prescriptions[/url]
can i buy viagra in cvs
引用 游客 2018-5-26 07:36
how to buy viagra in toronto
<a href="http://viagranbdnr.com/#">viagra without a prior doctor prescription</a>
can viagra tablets crushed
[url=http://viagranbdnr.com/#]viagra without a doctor prescription[/url]
viagra 100mg filmtabletten nebenwirkungen
<a href="http://canadamdonlineget.com/#">top rated online canadian pharmacies</a>
two pills of viagra
[url=http://canadamdonlineget.com/#]canadian pharmacies shipping to usa[/url]
where to buy viagra in usa ...
引用 游客 2018-5-26 03:15
cheap viagra toronto
<a href="http://canadamdonlineget.com/#">top rated online canadian pharmacies</a>
buying real viagra online uk
[url=http://canadamdonlineget.com/#]aarp recommended canadian pharmacies[/url]
150 mg sildenafil
<a href="http://viagradcvy.com/#">viagra without prescription</a>
online medical store viagra
[url=http://viagradcvy.com/#]viagra without a prior doctor prescription[/url]
viagra 1 tablette kaufen
引用 游客 2018-5-25 22:24
should i buy generic viagra
<a href="http://viagranbdnr.com/#">viagra without prescription</a>
generico do viagra sildenafil
[url=http://viagranbdnr.com/#]viagra without a doctor prescription[/url]
cialis viagra best price
<a href="http://canadamdonlineget.com/#">aarp recommended canadian pharmacies</a>
buy generic viagra dapoxetine online
[url=http://canadamdonlineget.com/#]canadian pharmacies online[/url]
buy generic viagra south africa ...
引用 游客 2018-5-25 11:16
cheapest viagra online australia
<a href="http://viagranbdnr.com/#">viagra without doctor prescription</a>
do u need a prescription to buy viagra
[url=http://viagranbdnr.com/#]viagra without prescription[/url]
viagra 50 mg von pfizer
<a href="http://canadamdonlineget.com/#">online canadian pharmacies</a>
can you buy viagra at cvs
[url=http://canadamdonlineget.com/#]canada pharmacies online prescriptions[/url]
viagra pfizer 100mg apotheke ...
引用 游客 2018-5-25 10:22
viagra online madrid
<a href="http://viagranbdnr.com/#">generic viagra without a doctor prescription</a>
order viagra 100mg
[url=http://viagranbdnr.com/#]viagra without a doctor prescription[/url]
viagra online au
<a href="http://canadamdonlineget.com/#">canadian pharmacies online</a>
can take half 100mg viagra
[url=http://canadamdonlineget.com/#]canadian online pharmacies[/url]
existe algum generico viagra
引用 游客 2018-5-23 08:50
buy viagra real
<a href="http://viagramakay.com/#">viagra without a doctors prescription</a>
sildenafil 2.5 mg
[url=http://viagramakay.com/#]viagra without doctor prescription[/url]
best online viagra site uk
<a href="http://canadamypharmacykee.com/#">legitimate canadian mail order pharmacies</a>
happens if take viagra cialis together
[url=http://canadamypharmacykee.com/#]list of reputable canadian pharmacies[/url]
generic viagra canada price ...
引用 游客 2018-5-23 07:45
buy viagra quebec
<a href="http://viagramakay.com/#">viagra without a doctor prescription</a>
bula do viagra de 100mg
[url=http://viagramakay.com/#]generic viagra without a doctor prescription[/url]
order viagra sample
<a href="http://canadamypharmacykee.com/#">top rated online canadian pharmacies</a>
viagra generico basso prezzo
[url=http://canadamypharmacykee.com/#]canadian online pharmacies[/url]
can i buy viagra at chemist
引用 游客 2018-5-23 06:52
reliable generic viagra sites
<a href="http://viagramakay.com/#">viagra without a prior doctor prescription</a>
buying viagra online is it safe
[url=http://viagramakay.com/#]viagra without a doctors prescription[/url]
viagra pills in canada
<a href="http://canadamypharmacykee.com/#">canadian pharmacies online prescriptions</a>
does viagra help get pregnant
[url=http://canadamypharmacykee.com/#]online canadian pharmacies[/url]
sildenafil 50 mg cuanto dura e ...
引用 游客 2018-5-22 19:37
can i take two 100mg viagra
<a href="http://viagramakay.com/#">viagra without a doctors prescription</a>
kmg 150 viagra
[url=http://viagramakay.com/#]viagra without a doctor prescription usa[/url]
real viagra online prescription
<a href="http://canadamypharmacykee.com/#">canada pharmacies online prescriptions</a>
viagra de 50 mg pfizer
[url=http://canadamypharmacykee.com/#]top rated online canadian pharmacies[/url]
buy viagra pharmacy
引用 游客 2018-5-22 17:36
where can i get viagra in the uk
<a href="http://viagramakay.com/#">generic viagra without a doctor prescription</a>
viagra little blue pills
[url=http://viagramakay.com/#]viagra without a doctor prescription[/url]
herbal viagra 8000mg
<a href="http://canadamypharmacykee.com/#">top rated online canadian pharmacies</a>
best place buy viagra online generic
[url=http://canadamypharmacykee.com/#]online canadian pharmacies[/url]
where i get viagra ...
引用 游客 2018-5-22 13:38
cheap viagra for men uk
<a href="http://viagramakay.com/#">viagra without a doctor prescription</a>
viagra women uk buy
[url=http://viagramakay.com/#]viagra without doctor prescription[/url]
herbal viagra prices
<a href="http://canadamypharmacykee.com/#">canadian online pharmacies</a>
statistics on viagra sales
[url=http://canadamypharmacykee.com/#]top rated online canadian pharmacies[/url]
non prescription viagra online uk
引用 游客 2018-5-22 08:58
comprar viagra generica en andorra
<a href="http://viagramakay.com/#">viagra without prescription</a>
buy cheap viagra with mastercard
[url=http://viagramakay.com/#]viagra without doctor[/url]
best website to order viagra
<a href="http://canadamypharmacykee.com/#">canadian online pharmacies</a>
genericos de viagra y cialis
[url=http://canadamypharmacykee.com/#]canada pharmacies online prescriptions[/url]
can i buy viagra in japan
引用 游客 2018-5-22 00:41
nuova pillola tipo viagra
<a href="http://viagramakay.com/#">viagra without doctor prescription</a>
best online place for viagra
[url=http://viagramakay.com/#]viagra without a doctor prescription[/url]
free viagra order
<a href="http://canadamypharmacykee.com/#">canada pharmacies online prescriptions</a>
25mg viagra strength
[url=http://canadamypharmacykee.com/#]aarp recommended canadian pharmacies[/url]
viagra sales in south africa
引用 游客 2018-5-21 23:36
is online viagra genuine
<a href="http://viagramakay.com/#">viagra without a doctors prescription</a>
safest site to buy viagra
[url=http://viagramakay.com/#]viagra without doctor[/url]
price viagra nigeria
<a href="http://canadamypharmacykee.com/#">best canadian mail order pharmacies</a>
online viagra legitimate
[url=http://canadamypharmacykee.com/#]canada pharmacies online prescriptions[/url]
sildenafil price canada
引用 游客 2018-5-19 17:54
nombre del generico del viagra
<a href="http://canadianmjdpharmacieskl.com/#">best canadian mail order pharmacies</a>
viagra 200mg
[url=http://canadianmjdpharmacieskl.com/#]aarp recommended canadian pharmacies[/url]
viagra super online
<a href="http://viagrabndoctorjaa.com/#">viagra without a doctor prescription usa</a>
ervaringen viagra online kopen
[url=http://viagrabndoctorjaa.com/#]viagra without prescription[/url]
best prices on viagra and cialis ...
引用 游客 2018-5-19 09:00
buy authentic viagra
<a href="http://viagratvbsugg.com/#">viagra without prescription</a>
buying generic viagra online india
[url=http://viagratvbsugg.com/#]viagra without a doctor prescription[/url]
how to get viagra online uk
<a href="http://canadianmjdpharmacieskl.com/#">canada pharmacies online prescriptions</a>
buying generic viagra online canada
[url=http://canadianmjdpharmacieskl.com/#]best canadian mail order pharmacies[/url]
viagra pills in delhi ...
引用 游客 2018-5-19 07:58
can you buy viagra without rx
<a href="http://viagratvbsugg.com/#">generic viagra without a doctor prescription</a>
can you get viagra from boots
[url=http://viagratvbsugg.com/#]generic viagra without a doctor prescription[/url]
pink pill for women viagra
<a href="http://canadianmjdpharmacieskl.com/#">canadian pharmacies online</a>
does walmart sell generic viagra
[url=http://canadianmjdpharmacieskl.com/#]top rated online canadian pharmacies[/url]
best pri ...
引用 游客 2018-5-19 07:15
can you safely buy viagra online
<a href="http://canadianmjdpharmacieskl.com/#">viagra without a doctor prescription usa</a>
top 10 viagra pills
[url=http://canadianmjdpharmacieskl.com/#]viagra without doctor[/url]
viagra generic launch date
<a href="http://viagrabndoctorjaa.com/#">canada pharmacies online prescriptions</a>
buy viagra with a mastercard
[url=http://viagrabndoctorjaa.com/#]canadian pharmacies online prescriptions[/url]
real pharmacy rx gener ...

查看全部评论(244)

QQ|Archiver|手机版|小黑屋|航空发动机&燃气轮机之家 ( 沪ICP备16010109号  

GMT+8, 2018-5-27 17:36 , Processed in 0.081763 second(s), 19 queries .

Powered by Discuz! X3.2

© 2001-2013 Comsenz Inc.

返回顶部