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蝶閥在氣力輸送使用過程的重要作用以及主要參數指標

隨著耐高溫、耐低溫、耐強腐蝕、高強度合金材料在氣力輸送蝶(die)(die)(die)閥(fa)(fa)中(zhong)的(de)應用(yong)(yong)(yong),使金(jin)屬密封蝶(die)(die)(die)閥(fa)(fa)在(zai)(zai)(zai)高溫(wen)(wen)、低(di)溫(wen)(wen)、強沖蝕(shi)等工(gong)況(kuang)(kuang)下(xia)(xia)(xia)得到廣泛的(de)應用(yong)(yong)(yong),并部分取代(dai)了截止閥(fa)(fa)、閘閥(fa)(fa)和球閥(fa)(fa)。由于蝶(die)(die)(die)閥(fa)(fa)蝶(die)(die)(die)板的(de)運動帶(dai)有擦(ca)拭性,故大多(duo)數蝶(die)(die)(die)閥(fa)(fa)可(ke)用(yong)(yong)(yong)于帶(dai)懸浮(fu)顆粒(li)(li)的(de)介(jie)質(zhi)(zhi),依據密封件(jian)的(de)強度也可(ke)用(yong)(yong)(yong)于粉狀和顆粒(li)(li)狀的(de)介(jie)質(zhi)(zhi),又能進行靈(ling)敏的(de)流量控制(zhi),蝶(die)(die)(die)閥(fa)(fa)的(de)結構(gou)原理適合于制(zhi)作大口徑閥(fa)(fa)門。氣力(li)輸送,在(zai)(zai)(zai)要求(qiu)節(jie)(jie)流和調(diao)節(jie)(jie)控制(zhi)流量、泥漿介(jie)質(zhi)(zhi)及(ji)含固體顆粒(li)(li)介(jie)質(zhi)(zhi)、要求(qiu)閥(fa)(fa)門結構(gou)長度短(duan)、要求(qiu)啟閉速度快和壓差較小的(de)工(gong)況(kuang)(kuang)條(tiao)件(jian)下(xia)(xia)(xia),推薦選用(yong)(yong)(yong)蝶(die)(die)(die)閥(fa)(fa)。在(zai)(zai)(zai)雙位調(diao)節(jie)(jie)、縮(suo)口的(de)通道、低(di)噪聲、有氣穴(xue)和氣化現象、向(xiang)大氣少量滲漏及(ji)介(jie)質(zhi)(zhi)有磨損(sun)性時(shi),可(ke)以(yi)選用(yong)(yong)(yong)蝶(die)(die)(die)閥(fa)(fa)。在(zai)(zai)(zai)特殊工(gong)況(kuang)(kuang)條(tiao)件(jian)下(xia)(xia)(xia)節(jie)(jie)流調(diao)節(jie)(jie)或要求(qiu)密封嚴(yan)格,過磨損(sun)嚴(yan)重、低(di)溫(wen)(wen)(深冷)等工(gong)況(kuang)(kuang)條(tiao)件(jian)下(xia)(xia)(xia)使用(yong)(yong)(yong)蝶(die)(die)(die)閥(fa)(fa)時(shi),應選用(yong)(yong)(yong)特殊設(she)計金(jin)屬密封帶(dai)調(diao)節(jie)(jie)裝置的(de)三偏(pian)心(xin)或雙偏(pian)心(xin)的(de)專用(yong)(yong)(yong)蝶(die)(die)(die)閥(fa)(fa)。

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1、輸(shu)(shu)送(song)(song)能(neng)力(li):輸(shu)(shu)送(song)(song)機械的輸(shu)(shu)送(song)(song)能(neng)力(li)是指單位時(shi)間內(nei)輸(shu)(shu)送(song)(song)的物料量。在輸(shu)(shu)送(song)(song)散狀物料時(shi),以每(mei)小時(shi)輸(shu)(shu)送(song)(song)物料的質量或體積計算;在輸(shu)(shu)送(song)(song)成件物品時(shi),以每(mei)小時(shi)輸(shu)(shu)送(song)(song)的件數計算。


2、輸(shu)送(song)(song)速(su)度(du)(du):提(ti)高(gao)輸(shu)送(song)(song)速(su)度(du)(du)可以提(ti)高(gao)輸(shu)送(song)(song)能力。在以輸(shu)送(song)(song)帶(dai)作(zuo)牽引件且輸(shu)送(song)(song)長度(du)(du)較(jiao)大時,輸(shu)送(song)(song)速(su)度(du)(du)日趨增大。但高(gao)速(su)運轉的帶(dai)式輸(shu)送(song)(song)機需注意振動(dong)、噪聲和啟動(dong)、制動(dong)等問題。對于(yu)以鏈條作(zuo)為牽引件的輸(shu)送(song)(song)機,輸(shu)送(song)(song)速(su)度(du)(du)不宜過大,以防(fang)止增大動(dong)力載(zai)荷。同時進(jin)行(xing)工藝操作(zuo)的輸(shu)送(song)(song)機,氣力輸(shu)送(song)(song),輸(shu)送(song)(song)速(su)度(du)(du)應按生產工藝要求(qiu)確定(ding)。


3、構(gou)件(jian)尺寸(cun):輸(shu)送(song)機械的構(gou)件(jian)尺寸(cun)包括(kuo)輸(shu)送(song)帶寬度(du)、板條寬度(du)、料(liao)斗容積、管道直徑和容器大小等。這些(xie)構(gou)件(jian)尺寸(cun)都直接影(ying)響輸(shu)送(song)機的輸(shu)送(song)能力。


4、輸送(song)(song)長度(du)和(he)傾角:輸送(song)(song)線路長度(du)和(he)傾角大小(xiao)直接影(ying)響輸送(song)(song)機(ji)的總(zong)阻力和(he)所(suo)需(xu)要的功(gong)率。



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