成都隧道风机通风设计特点：

隧道(dao)风机又称隧道(dao)射流(liu)风机、隧道(dao)风机、射流(liu)风机，广泛(fan)应用于水(shui)利大坝工程(cheng)、公路(lu)、铁路(lu)、地铁等隧道(dao)的实际应用中(zhong)。

隧(sui)道中(zhong)隧(sui)道风(feng)(feng)机的通(tong)(tong)(tong)风(feng)(feng)方式有(you)很(hen)多，其中(zhong)一般采用纵向通(tong)(tong)(tong)风(feng)(feng)、横向通(tong)(tong)(tong)风(feng)(feng)和半横向通(tong)(tong)(tong)风(feng)(feng)，当然也有(you)横向通(tong)(tong)(tong)风(feng)(feng)。它的主要功能(neng)是在(zai)隧(sui)道中(zhong)执行通(tong)(tong)(tong)风(feng)(feng)任务，向隧(sui)道内部供应新鲜空气，并清除(chu)隧(sui)道中(zhong)的有(you)害物(wu)质。

1、横向流(liu)动(dong)

风道位(wei)于车(che)道两(liang)侧，新鲜空(kong)气一方面(mian)(mian)通过侧壁(bi)的桥梁(liang)入(ru)口(kou)孔(kong)(kong)压入(ru)车(che)道，另(ling)一方面(mian)(mian)通过侧壁(bi)的桥梁(liang)排(pai)放孔(kong)(kong)吸入(ru)排(pai)风道，多(duo)用于沉(chen)管法水下(xia)隧道。

2、半横(heng)向(xiang)型

送风(feng)排(pai)风(feng)式(shi)通(tong)(tong)(tong)风(feng)。与水(shui)平(ping)通(tong)(tong)(tong)风(feng)相(xiang)比(bi)，成本(ben)较(jiao)低，但通(tong)(tong)(tong)风(feng)效果(guo)和火(huo)灾蔓(man)延没有(you)水(shui)平(ping)，对于1000到3公里长(zhang)的(de)隧道(dao)是实(shi)用的(de)。进气(qi)道(dao)通(tong)(tong)(tong)常位于车(che)道(dao)上方，有(you)些位于车(che)道(dao)下方。排(pai)气(qi)管位于车(che)道(dao)下方，新鲜的(de)大气(qi)通(tong)(tong)(tong)过入(ru)口进入(ru)车(che)道(dao)。排(pai)气(qi)式(shi)通(tong)(tong)(tong)风(feng)。风(feng)道(dao)两端用风(feng)扇隔开，前半段排(pai)气(qi)，后半段嘶嘶作(zuo)响。根(gen)据(ju)用作(zuo)进气(qi)或排(pai)气(qi)的(de)普(pu)通(tong)(tong)(tong)风(feng)道(dao)，可区分为嘶嘶通(tong)(tong)(tong)风(feng)。

3、纵向型

隧道(dao)风机工事成(cheng)本低(di)，运营(ying)成(cheng)本也低(di)。缺少的(de)是隧道(dao)入口端会积聚纯净的(de)大气，无(wu)害的(de)能量比较(jiao)高。一旦发生火灾(zai)，火势会沿(yan)气旋纵向蔓延，救援(yuan)(yuan)人员无(wu)法轻(qing)易进入隧道(dao)进行救援(yuan)(yuan)。油气流连接的(de)短隧道(dao)不适合采用(yong)，只适用(yong)于单向天车的(de)长隧道(dao)。

4、卧式

横(heng)向(xiang)(xiang)通(tong)风(feng)(feng)根据进、排(pai)气(qi)流(liu)过隧道(dao)(dao)的(de)流(liu)向(xiang)(xiang)可分为红利(li):向(xiang)(xiang)下(xia)(xia)通(tong)风(feng)(feng)，进风(feng)(feng)道(dao)(dao)位于车(che)道(dao)(dao)上方或前(qian)方，排(pai)气(qi)风(feng)(feng)道(dao)(dao)位于车(che)道(dao)(dao)下(xia)(xia)方，车(che)道(dao)(dao)内的(de)气(qi)旋向(xiang)(xiang)下(xia)(xia)流(liu)动(dong)。车(che)道(dao)(dao)内发生(sheng)横(heng)向(xiang)(xiang)气(qi)旋，有利(li)于灭(mie)火；车(che)辆排(pai)放(fang)的(de)烟雾(wu)在短途旅(lv)行中被(bei)净(jing)化，并以对(dui)称的(de)方式集中。不容易把(ba)烟全积起来，通(tong)风(feng)(feng)效果好。对(dui)于长隧道(dao)(dao)是实(shi)用的(de)。