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屋頂風機啟動調試

屋頂風機的起動調試:

屋(wu)頂風(feng)(feng)機(ji)可用(yong)(yong)(yong)于(yu)建(jian)筑(zhu)物屋(wu)頂的(de)(de)(de)通(tong)(tong)(tong)風(feng)(feng)和通(tong)(tong)(tong)風(feng)(feng)。本著室內(nei)熱(re)(re)氣流(liu)上升,冷空(kong)氣下降(jiang)的(de)(de)(de)天(tian)然(ran)原理,將其(qi)安(an)裝在屋(wu)頂上,以加快熱(re)(re)空(kong)氣的(de)(de)(de)揮(hui)發,到(dao)達(da)通(tong)(tong)(tong)風(feng)(feng)降(jiang)溫的(de)(de)(de)作用(yong)(yong)(yong)。適用(yong)(yong)(yong)于(yu)大型(xing)商業超(chao)市,農牧業,工業廠(chang)房,農業育(yu)種(zhong)廠(chang)和元(yuan)件廠(chang);它的(de)(de)(de)特點(dian):風(feng)(feng)機(ji)不需要消耗功率,僅通(tong)(tong)(tong)過氣流(liu)的(de)(de)(de)功率就可以到(dao)達(da)排風(feng)(feng)和通(tong)(tong)(tong)風(feng)(feng)的(de)(de)(de)意圖。這種(zhong)風(feng)(feng)機(ji)的(de)(de)(de)是易于(yu)安(an)裝和節能。

1.風(feng)機答(da)應全壓(ya)起動或降壓(ya)起動,但應留意(yi),全壓(ya)起動時(shi)的電流為5~7倍(bei)的額定電流,降壓(ya)起動轉距與電壓(ya)平方成正比,當電網(wang)容(rong)量不(bu)足(zu)時(shi),應選(xuan)用降壓(ya)起動。

2.試車時人數不(bu)少(shao)于兩人,一(yi)人控制電(dian)源(yuan),一(yi)人調(diao)查風機(ji)工作(zuo)(zuo)狀況,發現(xian)異(yi)常現(xian)象(xiang)立即停(ting)機(ji)查看;首先查看旋轉方(fang)向是否正確;風機(ji)過程中,應(ying)查看各(ge)相工作(zuo)(zuo)電(dian)流(liu)是否平衡,電(dian)流(liu)是否超越額定電(dian)流(liu);若有不(bu)正常現(xian)象(xiang),應(ying)中止查看。工作(zuo)(zuo)五分(fen)鐘(zhong)后,停(ting)機(ji)查看風機(ji)是否有異(yi)常現(xian)象(xiang),承認(ren)無異(yi)常現(xian)象(xiang)再開機(ji)工作(zuo)(zuo)。

屋頂風機啟動調試

3.雙速(su)風(feng)機(ji)試(shi)車時(shi),應先發(fa)動(dong)低速(su),并查看旋(xuan)轉(zhuan)方(fang)向(xiang)是(shi)否(fou)正確;起(qi)(qi)動(dong)高速(su)時(shi)要待風(feng)機(ji)靜止后再起(qi)(qi),以(yi)防高速(su)反(fan)向(xiang)旋(xuan)轉(zhuan),引起(qi)(qi)開(kai)關跳閘及電機(ji)受損。

4.風機(ji)到(dao)達正常(chang)(chang)運(yun)速時,應檢測風機(ji)各(ge)相輸入電(dian)(dian)源是否正常(chang)(chang),風機(ji)的(de)工(gong)作(zuo)電(dian)(dian)流(liu)不能超越其額(e)定(ding)電(dian)(dian)流(liu),若工(gong)作(zuo)電(dian)(dian)流(liu)超越其額(e)定(ding)電(dian)(dian)流(liu),應查看供應風機(ji)的(de)電(dian)(dian)壓(ya)是否正常(chang)(chang)。

5.對離心風(feng)(feng)(feng)(feng)機(ji)和風(feng)(feng)(feng)(feng)機(ji)箱,所(suo)需(xu)電(dian)(dian)機(ji)功率是指在(zai)待定(ding)工(gong)況下(xia),加上機(ji)械損失與應有(you)的(de)(de)儲備(bei)量而言,并(bing)(bing)非出風(feng)(feng)(feng)(feng)口全開時所(suo)需(xu)的(de)(de)功率,如(ru)風(feng)(feng)(feng)(feng)機(ji)的(de)(de)出風(feng)(feng)(feng)(feng)口不接(jie)管道或未加外界(jie)阻力(li)而進行(xing)空工(gong)作,則電(dian)(dian)機(ji)有(you)焚毀的(de)(de)風(feng)(feng)(feng)(feng)險,為(wei)了(le)起見,應在(zai)風(feng)(feng)(feng)(feng)機(ji)的(de)(de)出風(feng)(feng)(feng)(feng)口或入口管路(lu)加上閥門,起動風(feng)(feng)(feng)(feng)機(ji)時關閉,工(gong)作后將閥門漸(jian)漸(jian)敞開,到達規(gui)則工(gong)況為(wei)止,并(bing)(bing)留(liu)意風(feng)(feng)(feng)(feng)機(ji)電(dian)(dian)流是否超越規(gui)則值。