蝶閥在氣力輸送使用過程的重要作用以及主要參數指標

2022-04-06 作(zuo)者：Array

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)閥(fa)(fa)(fa)(fa)中的(de)(de)(de)應用(yong)(yong)(yong),使(shi)金屬密封蝶(die)(die)閥(fa)(fa)(fa)(fa)在(zai)高溫(wen)、低溫(wen)、強沖蝕等工(gong)況下(xia)得到廣泛的(de)(de)(de)應用(yong)(yong)(yong),并(bing)部分取(qu)代了截止閥(fa)(fa)(fa)(fa)、閘閥(fa)(fa)(fa)(fa)和(he)(he)球閥(fa)(fa)(fa)(fa)。由于蝶(die)(die)閥(fa)(fa)(fa)(fa)蝶(die)(die)板的(de)(de)(de)運動帶有擦拭性,故(gu)大(da)多數蝶(die)(die)閥(fa)(fa)(fa)(fa)可(ke)用(yong)(yong)(yong)于帶懸(xuan)浮顆(ke)粒的(de)(de)(de)介(jie)質,依據密封件(jian)的(de)(de)(de)強度(du)(du)也可(ke)用(yong)(yong)(yong)于粉狀(zhuang)和(he)(he)顆(ke)粒狀(zhuang)的(de)(de)(de)介(jie)質,又能進(jin)行靈敏的(de)(de)(de)流(liu)量(liang)控制,蝶(die)(die)閥(fa)(fa)(fa)(fa)的(de)(de)(de)結(jie)構原理適(shi)合于制作大(da)口徑閥(fa)(fa)(fa)(fa)門。氣(qi)(qi)(qi)力輸送，在(zai)要求節(jie)(jie)(jie)流(liu)和(he)(he)調(diao)節(jie)(jie)(jie)控制流(liu)量(liang)、泥漿介(jie)質及含固(gu)體顆(ke)粒介(jie)質、要求閥(fa)(fa)(fa)(fa)門結(jie)構長度(du)(du)短、要求啟閉速度(du)(du)快(kuai)和(he)(he)壓差較小的(de)(de)(de)工(gong)況條件(jian)下(xia),推薦選(xuan)用(yong)(yong)(yong)蝶(die)(die)閥(fa)(fa)(fa)(fa)。在(zai)雙位調(diao)節(jie)(jie)(jie)、縮口的(de)(de)(de)通道(dao)、低噪聲、有氣(qi)(qi)(qi)穴和(he)(he)氣(qi)(qi)(qi)化現象、向大(da)氣(qi)(qi)(qi)少量(liang)滲漏及介(jie)質有磨(mo)損性時,可(ke)以選(xuan)用(yong)(yong)(yong)蝶(die)(die)閥(fa)(fa)(fa)(fa)。在(zai)特(te)殊工(gong)況條件(jian)下(xia)節(jie)(jie)(jie)流(liu)調(diao)節(jie)(jie)(jie)或(huo)要求密封嚴(yan)格,過磨(mo)損嚴(yan)重、低溫(wen)(深冷)等工(gong)況條件(jian)下(xia)使(shi)用(yong)(yong)(yong)蝶(die)(die)閥(fa)(fa)(fa)(fa)時,應選(xuan)用(yong)(yong)(yong)特(te)殊設計金屬密封帶調(diao)節(jie)(jie)(jie)裝(zhuang)置(zhi)的(de)(de)(de)三偏心或(huo)雙偏心的(de)(de)(de)專(zhuan)用(yong)(yong)(yong)蝶(die)(die)閥(fa)(fa)(fa)(fa)。

1、輸(shu)(shu)(shu)(shu)送(song)(song)(song)能(neng)力：輸(shu)(shu)(shu)(shu)送(song)(song)(song)機械的(de)輸(shu)(shu)(shu)(shu)送(song)(song)(song)能(neng)力是指單位時(shi)間內輸(shu)(shu)(shu)(shu)送(song)(song)(song)的(de)物料量。在(zai)輸(shu)(shu)(shu)(shu)送(song)(song)(song)散狀物料時(shi)，以(yi)每小(xiao)時(shi)輸(shu)(shu)(shu)(shu)送(song)(song)(song)物料的(de)質量或體積計算(suan)；在(zai)輸(shu)(shu)(shu)(shu)送(song)(song)(song)成件物品時(shi)，以(yi)每小(xiao)時(shi)輸(shu)(shu)(shu)(shu)送(song)(song)(song)的(de)件數計算(suan)。

2、輸(shu)(shu)送(song)(song)(song)(song)速(su)(su)(su)度(du)：提高(gao)輸(shu)(shu)送(song)(song)(song)(song)速(su)(su)(su)度(du)可以(yi)提高(gao)輸(shu)(shu)送(song)(song)(song)(song)能(neng)力(li)。在以(yi)輸(shu)(shu)送(song)(song)(song)(song)帶(dai)作牽(qian)引件且輸(shu)(shu)送(song)(song)(song)(song)長度(du)較(jiao)大(da)(da)時，輸(shu)(shu)送(song)(song)(song)(song)速(su)(su)(su)度(du)日趨增(zeng)大(da)(da)。但高(gao)速(su)(su)(su)運轉的帶(dai)式輸(shu)(shu)送(song)(song)(song)(song)機(ji)需注意振動(dong)、噪聲和啟動(dong)、制動(dong)等問題。對(dui)于以(yi)鏈條(tiao)作為牽(qian)引件的輸(shu)(shu)送(song)(song)(song)(song)機(ji)，輸(shu)(shu)送(song)(song)(song)(song)速(su)(su)(su)度(du)不宜過大(da)(da)，以(yi)防止(zhi)增(zeng)大(da)(da)動(dong)力(li)載荷(he)。同時進行(xing)工藝(yi)操作的輸(shu)(shu)送(song)(song)(song)(song)機(ji)，氣力(li)輸(shu)(shu)送(song)(song)(song)(song)，輸(shu)(shu)送(song)(song)(song)(song)速(su)(su)(su)度(du)應(ying)按生產工藝(yi)要求確定。

3、構件尺寸(cun)：輸送(song)機械的(de)構件尺寸(cun)包(bao)括輸送(song)帶寬(kuan)度(du)、板(ban)條寬(kuan)度(du)、料斗容(rong)積、管道直徑和容(rong)器大小等。這些構件尺寸(cun)都(dou)直接影響輸送(song)機的(de)輸送(song)能(neng)力。

4、輸(shu)送(song)長度(du)和傾(qing)角(jiao)：輸(shu)送(song)線(xian)路長度(du)和傾(qing)角(jiao)大小直接影(ying)響輸(shu)送(song)機(ji)的(de)總阻力和所需要(yao)的(de)功率。

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