變頻防爆(bao)鼓風機(ji)漩渦(wo)式風機(ji)運轉時,馬達所消耗的電(dian)流會隨壓力及真空度的提高而(er)增加。如果電(dian)流過大時會導致接觸器負荷跳脫,為防止跳脫,可在吸(xi)氣(qi)或排氣(qi)側裝置真空或壓力釋放閥
變頻防爆鼓風機漩渦式風機結構(gou)特(te)點:風(feng)(feng)機(ji)(ji)主要由(you)葉(xie)(xie)輪(lun)、機(ji)(ji)殼(ke)、進風(feng)(feng)口、電(dian)機(ji)(ji)、連(lian)(lian)接器、散熱(re)風(feng)(feng)葉(xie)(xie)等部件組(zu)成(cheng)。葉(xie)(xie)輪(lun)采用(yong)(yong)(yong)(yong)多翼式單進離心葉(xie)(xie)輪(lun),用(yong)(yong)(yong)(yong)優(you)質的鍍鋅板(ban)(ban)或冷軋(ya)鋼板(ban)(ban)成(cheng),葉(xie)(xie)片依(yi)據空氣(qi)(qi)動力原理設計。WQE型(xing)葉(xie)(xie)輪(lun)由(you)10個后傾(qing)機(ji)(ji)翼型(xing)葉(xie)(xie)片、曲線(xian)型(xing)前盤(pan)和(he)平板(ban)(ban)后盤(pan)組(zu)成(cheng)。材(cai)料(liao)用(yong)(yong)(yong)(yong)強度高、耐用(yong)(yong)(yong)(yong)性好的優(you)質鋼板(ban)(ban)制造,并(bing)經嚴格的動、靜平衡(heng)校正(zheng),空氣(qi)(qi)性能良好,效率(lv)高,運(yun)(yun)行平穩。進風(feng)(feng)口采用(yong)(yong)(yong)(yong)收斂(lian)流線(xian)型(xing)減渦形式,氣(qi)(qi)流損失(shi)較小,風(feng)(feng)機(ji)(ji)的工作(zuo)效率(lv)高。風(feng)(feng)機(ji)(ji)機(ji)(ji)殼(ke)與電(dian)機(ji)(ji)以金(jin)(jin)屬(shu)鑄件安裝連(lian)(lian)接,電(dian)機(ji)(ji)軸頭上(shang)(shang)安裝散熱(re)風(feng)(feng)葉(xie)(xie),金(jin)(jin)屬(shu)鑄件的外壁上(shang)(shang)開高進、出水管接口,對(dui)金(jin)(jin)屬(shu)鑄件與軸頭進行降溫,確(que)保電(dian)機(ji)(ji)在高溫下正(zheng)常運(yun)(yun)行。其電(dian)機(ji)(ji)采用(yong)(yong)(yong)(yong)特(te)殊高溫電(dian)機(ji)(ji),風(feng)(feng)機(ji)(ji)流體部分采用(yong)(yong)(yong)(yong)耐溫材(cai)料(liao),降溫結構(gou)性能可靠(kao)。相(xiang)比鍋(guo)爐引風(feng)(feng)機(ji)(ji),型(xing)結構(gou)簡單,維護(hu)方(fang)便,性價比高等優(you)點。
變頻防爆鼓風機漩渦式風機
的優點:
1、節能降(jiang)耗。根據不同工(gong)作條件節電效果可達l0%—50%;
2、具有軟啟(qi)動功能,啟(qi)動電(dian)流小,啟(qi)動轉矩(ju)(ju)大(da),可達(da)額定值的2倍,電(dian)機的轉矩(ju)(ju)脈動小,電(dian)機的運(yun)行轉矩(ju)(ju)高:
3、可調(diao)(diao)速,并(bing)且調(diao)(diao)速效率高,可達95%以上;實(shi)現平穩(wen)的(de)無(wu)極調(diao)(diao)速,調(diao)(diao)速方便。
4、有過壓、欠壓、過流、過載、缺相等(deng)多(duo)種保護功能,保護準(zhun)確、可靠,從(cong)而降低(di)事故發生率并及時(shi)提供故障(zhang)信息;
5、提高電機運行功(gong)率因數,延長電機等(deng)設備的(de)使用(yong)壽(shou)命。采用(yong)變頻調(diao)速(su)后(hou),可以實現軟起動(dong)(dong)和軟制動(dong)(dong),幾(ji)乎不產生沖擊(ji),避免(mian)水阻軟啟動(dong)(dong)3~4倍的(de)沖擊(ji)電流,可大大延長電機定子、轉子軸及(ji)軸承等(deng)電氣與(yu)機械壽(shou)命:
6、能提高整(zheng)個系統的自動(dong)化水(shui)平和工藝水(shui)平,現場操作簡單,較少(shao)的維護工作量,節(jie)約成本。