1;負壓(ya)風機的結構如(ru)圖(tu)分為：風機調整螺栓、電機、U型皮(pi)帶(dai)、扇頁、泫(xuan)珠軸承、百葉、防護網、重錘等配件。

2;負壓(ya)風(feng)機日(ri)常的(de)保養：

(1);清(qing)理防護網的雜質，

(2);查看皮帶的松軟，如(ru)果發現有松動，馬上安(an)排調(diao)整、復位。

(3);電(dian)(dian)機的軸(zhou)承是否有(you)異響，如果有(you)檢查電(dian)(dian)機上(shang)潤滑油是否還有(you)![2]

關于電機的(de)保養(yang)和(he)維護，可(ke)從(cong)以下方面(mian)著(zhu)手：

1、首先斷開主(zhu)機電源，檢查地(di)線是否接(jie)地(di)良好(hao);

2、檢查各部分(fen)螺絲(si)和(he)聯軸是否緊固

3、對(dui)照說明書，畜牧風機品牌，檢測電動機的絕(jue)緣電阻(zu)是否符(fu)合規定，檢查主回路觸點。若觸頭嚴重燒(shao)蝕或者磨損厲害應立即更換(huan)觸頭。

負(fu)壓風(feng)機+降溫濕簾(lian)系(xi)統構(gou)造(zao)：負(fu)壓風(feng)機+降溫濕簾(lian)系(xi)統是由一種(zhong)表面積較大(da)的(de)特種(zhong)波(bo)紋蜂窩狀紙(zhi)質(zhi)做成(cheng)的(de)濕簾(lian)及有效節能低(di)噪音負(fu)壓風(feng)機系(xi)統、水循環系(xi)統、浮球閥補水裝置、供電系(xi)統等組(zu)成(cheng)。

負(fu)壓風(feng)機+降(jiang)(jiang)(jiang)溫(wen)(wen)(wen)(wen)(wen)濕(shi)簾(lian)系(xi)統(tong)工(gong)作(zuo)(zuo)原理及優點：當風(feng)機運(yun)行(xing)時，長(chang)沙畜(chu)牧風(feng)機，使(shi)(shi)(shi)豬(zhu)(zhu)舍內(nei)產生負(fu)壓，使(shi)(shi)(shi)室(shi)(shi)(shi)外(wai)空(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)流(liu)進(jin)多孔濕(shi)潤的(de)(de)(de)(de)濕(shi)簾(lian)表面進(jin)豬(zhu)(zhu)舍，同時水(shui)循環系(xi)統(tong)工(gong)作(zuo)(zuo)，水(shui)泵把機腔底部水(shui)箱里(li)的(de)(de)(de)(de)水(shui)沿著輸水(shui)導管送到濕(shi)簾(lian)的(de)(de)(de)(de)頂部，使(shi)(shi)(shi)濕(shi)簾(lian)充分濕(shi)潤，紙簾(lian)表面上的(de)(de)(de)(de)水(shui)在空(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)高(gao)速流(liu)動狀態下(xia)蒸發(fa)(fa)，帶走大量(liang)潛熱(re)，迫(po)使(shi)(shi)(shi)流(liu)過濕(shi)簾(lian)的(de)(de)(de)(de)空(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)的(de)(de)(de)(de)溫(wen)(wen)(wen)(wen)(wen)度(du)低(di)于(yu)室(shi)(shi)(shi)外(wai)空(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)的(de)(de)(de)(de)溫(wen)(wen)(wen)(wen)(wen)度(du)，即降(jiang)(jiang)(jiang)溫(wen)(wen)(wen)(wen)(wen)濕(shi)簾(lian)處的(de)(de)(de)(de)溫(wen)(wen)(wen)(wen)(wen)度(du)比室(shi)(shi)(shi)外(wai)溫(wen)(wen)(wen)(wen)(wen)度(du)低(di)5～12℃。空(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)愈(yu)(yu)干熱(re)，溫(wen)(wen)(wen)(wen)(wen)差愈(yu)(yu)大，降(jiang)(jiang)(jiang)溫(wen)(wen)(wen)(wen)(wen)效(xiao)果越好。 由于(yu)空(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)始終是(shi)從室(shi)(shi)(shi)外(wai)引進(jin)室(shi)(shi)(shi)內(nei)，所以(yi)能(neng)保(bao)持室(shi)(shi)(shi)內(nei)空(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)的(de)(de)(de)(de)新鮮;同時由于(yu)該機利用(yong)(yong)蒸發(fa)(fa)降(jiang)(jiang)(jiang)溫(wen)(wen)(wen)(wen)(wen)原理，因(yin)此具有降(jiang)(jiang)(jiang)溫(wen)(wen)(wen)(wen)(wen)和改善(shan)空(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)質量(liang)雙重功(gong)能(neng)。在豬(zhu)(zhu)舍中使(shi)(shi)(shi)用(yong)(yong)降(jiang)(jiang)(jiang)溫(wen)(wen)(wen)(wen)(wen)系(xi)統(tong)，畜(chu)牧風(feng)機廠家，不(bu)但能(neng)有效(xiao)地(di)降(jiang)(jiang)(jiang)低(di)豬(zhu)(zhu)舍內(nei)的(de)(de)(de)(de)溫(wen)(wen)(wen)(wen)(wen)度(du)，改善(shan)舍內(nei)空(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)的(de)(de)(de)(de)濕(shi)度(du)，而且還(huan)能(neng)引入(ru)新鮮空(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)，減(jian)少豬(zhu)(zhu)舍內(nei)的(de)(de)(de)(de)HS2和NH3等(deng)有害氣(qi)(qi)(qi)體的(de)(de)(de)(de)濃度(du)。有效(xiao)地(di)改善(shan)了(le)豬(zhu)(zhu)舍里(li)空(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)的(de)(de)(de)(de)溫(wen)(wen)(wen)(wen)(wen)度(du)、濕(shi)度(du)和舍內(nei)空(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)氣(qi)(qi)(qi)流(liu)等(deng)情(qing)(qing)況(kuang)，為各種不(bu)同類型豬(zhu)(zhu)群提供(gong)適宜的(de)(de)(de)(de)環境，保(bao)證了(le)豬(zhu)(zhu)群在處于(yu)很小應激(ji)水(shui)平(ping)的(de)(de)(de)(de)情(qing)(qing)況(kuang)下(xia)提高(gao)豬(zhu)(zhu)群生產性能(neng)的(de)(de)(de)(de)目(mu)。該系(xi)統(tong)的(de)(de)(de)(de)自動溫(wen)(wen)(wen)(wen)(wen)控性能(neng)也大大地(di)減(jian)輕(qing)了(le)飼養人員(yuan)的(de)(de)(de)(de)工(gong)作(zuo)(zuo)強度(du)，提高(gao)了(le)工(gong)作(zuo)(zuo)人員(yuan)的(de)(de)(de)(de)工(gong)作(zuo)(zuo)效(xiao)率。

負(fu)壓風機分為離(li)心式和(he)軸流(liu)式，那它們兩(liang)者之間又(you)怎(zen)樣的(de)區別呢(ni)?

1、離(li)心負壓風機改變了(le)風管內(nei)介質的流向，而軸流負壓風機不改變風管內(nei)介質的流向；

2、離心負壓風機安裝較復雜；

3、離心負壓(ya)風(feng)機(ji)電機(ji)與風(feng)機(ji)一般是通過軸連(lian)接的，軸流負壓(ya)風(feng)機(ji)電機(ji)一般在風(feng)機(ji)內；

4、離(li)心(xin)負壓風(feng)(feng)機(ji)常安裝在(zai)空調機(ji)組進、出(chu)口處，鍋(guo)爐(lu)鼓(gu)、引風(feng)(feng)機(ji)，畜(chu)牧風(feng)(feng)機(ji)供(gong)應商，等等。軸流(liu)負壓風(feng)(feng)機(ji)常安裝在(zai)風(feng)(feng)管當中、或風(feng)(feng)管出(chu)口前端。

此外還(huan)有斜流(混(hun)流)風(feng)(feng)機(ji)，風(feng)(feng)壓(ya)系(xi)數(shu)比軸流風(feng)(feng)機(ji)高，流量系(xi)數(shu)比離(li)心風(feng)(feng)機(ji)大。添補了(le)軸流風(feng)(feng)機(ji)和離(li)心風(feng)(feng)機(ji)之(zhi)間的空白。同(tong)時具備簡單方便(bian)的特點。