排煙風機是一種可以將(jiang)廚房中加工食物過(guo)程中產生的(de)異味、高溫、油煙氣體(ti)迅速排走的(de)機(ji)械,該(gai)機(ji)器特點(dian)是耐高溫性(xing)能良好、效率高。風機(ji)的(de)類(lei)型有離心風機(ji)、軸(zhou)流(liu)風機(ji)、離心風機(ji)、軸(zhou)流(liu)風,根據空間大小(xiao)和排煙罩的(de)布(bu)置情況(kuang)選擇適(shi)合(he)小(xiao)大的(de)機(ji)器。我們(men)在施(shi)工時(shi)應注意哪(na)些事(shi)項呢?
防排(pai)煙風(feng)機的(de)配(pei)(pei)電(dian)(dian)(dian)不符合規范(fan)要(yao)求,一是風(feng)機的(de)供(gong)配(pei)(pei)電(dian)(dian)(dian)達不到高層(ceng)民用(yong)建筑負荷(he)級別(bie)要(yao)求。有的(de)供(gong)電(dian)(dian)(dian)線(xian)路(lu)不是接自(zi)消防電(dian)(dian)(dian)源(yuan),而是接至樓層(ceng)照(zhao)明配(pei)(pei)電(dian)(dian)(dian)箱(xiang),有的(de)設(she)(she)計采用(yong)單回路(lu)配(pei)(pei)電(dian)(dian)(dian)線(xian)路(lu),有的(de)設(she)(she)計未設(she)(she)末端電(dian)(dian)(dian)源(yuan)自(zi)動(dong)切(qie)換(huan)裝(zhuang)置(zhi),均(jun)達不到一、二級供(gong)電(dian)(dian)(dian)負荷(he)要(yao)求的(de)專用(yong)雙回路(lu),設(she)(she)末端自(zi)動(dong)切(qie)換(huan)裝(zhuang)置(zhi)的(de)規定(ding)。排(pai)煙管保溫(wen)
二是明敷配(pei)電線(xian)路的安(an)裝不符合要求。
有(you)的防(fang)排(pai)煙(yan)風機的配電線路穿PVC塑(su)料管(guan)(guan),有(you)的穿金(jin)屬管(guan)(guan)未(wei)(wei)涂(tu)(tu)刷防(fang)火(huo)涂(tu)(tu)料,不符合(he)穿管(guan)(guan)的防(fang)火(huo)性能要(yao)求(qiu)。應設(she)(she)機械防(fang)排(pai)煙(yan)設(she)(she)施(shi)的部位(wei)未(wei)(wei)按規(gui)范(fan)(fan)要(yao)求(qiu)設(she)(she)置,帶裙房的高層民用建(jian)筑(zhu)防(fang)煙(yan)樓梯間及前(qian)(qian)室,消(xiao)防(fang)電梯間前(qian)(qian)室或合(he)用前(qian)(qian)室,當裙房以(yi)上部分利用可開啟外窗進行自(zi)然排(pai)煙(yan),裙房部分不具(ju)備(bei)自(zi)然排(pai)煙(yan)條件時,其前(qian)(qian)室或合(he)用前(qian)(qian)室未(wei)(wei)按規(gui)范(fan)(fan)要(yao)求(qiu)設(she)(she)置正壓送風系統。排(pai)煙(yan)管(guan)(guan)保溫
超過20米無自(zi)然排(pai)(pai)煙(yan)(yan)的內(nei)走(zou)道,有的設(she)計人員因與其(qi)相連的防煙(yan)(yan)樓梯(ti)間(jian)前室有自(zi)然排(pai)(pai)煙(yan)(yan),認為(wei)其(qi)具備自(zi)然排(pai)(pai)煙(yan)(yan)的條件,未按規范要求設(she)置機(ji)械排(pai)(pai)煙(yan)(yan)設(she)施。
===========================
山(shan)東德州金光宣傳辦: 張 2019.12.07
===========================