Y45H-16C杠桿式減壓閥
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人氣：2305 發布時間：2016-06-14 08:38 關鍵詞：杠桿式減壓閥 產品型號：Y45H-16C 應用領域：水處理 產品價格：125 想了解更多產品詳情，請 |
Y45H/Y杠(gang)桿式(shi)蒸(zheng)汽減壓閥 尺(chi)寸：(PN1.6-4.0) ;
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Y45H/Y杠桿式蒸汽(qi)減壓閥 產品說明：
Y45H/Y杠(gang)桿式蒸汽減壓閥主要由閥體、閥座閥瓣(ban)等(deng)零件組成。采(cai)(cai)用雙(shuang)閥座，雙(shuang)錐體交換機(ji)瓣(ban)的結構(gou)。采(cai)(cai)用壓力平衡(heng)式瓣(ban)、升降調節。其調節機(ji)構(gou)采(cai)(cai)用杠(gang)桿式，可配用DKJ型或其它型角行程(cheng)電動執(zhi)行器，實現遙控和自動控制(zhi)。本系列產品(pin)的減故比(bi)用(yong)到0．6較為合適。本產品主要用于蒸汽管路，調節(jie)壓力。廣泛應用在熱電(dian)聯產、輕(qing)紡、印染(ran)、石化、制糖等行業。
減(jian)壓閥概述：
減(jian)壓閥是(shi)通過(guo)調(diao)節(jie)，將進口壓力減(jian)至某一需要的(de)(de)(de)出(chu)口壓力，并依(yi)靠介質本(ben)身的(de)(de)(de)能(neng)(neng)量，使(shi)出(chu)口壓力自動保(bao)持(chi)穩(wen)定的(de)(de)(de)閥門。從(cong)流(liu)體(ti)力學的(de)(de)(de)觀點(dian)看，減(jian)壓閥是(shi)一個局部阻力可以變化的(de)(de)(de)節(jie)流(liu)元件，即通過(guo)改變節(jie)流(liu)面積(ji)，使(shi)流(liu)速及流(liu)體(ti)的(de)(de)(de)動能(neng)(neng)改變，造成(cheng)不同(tong)的(de)(de)(de)壓力損失，從(cong)而達到減(jian)壓的(de)(de)(de)目的(de)(de)(de)。然(ran)后依(yi)靠控制與調(diao)節(jie)系統的(de)(de)(de)調(diao)節(jie)，使(shi)閥后壓力的(de)(de)(de)波動與彈簧(huang)力相平衡，使(shi)閥后壓力在一定的(de)(de)(de)誤(wu)差范圍內保(bao)持(chi)恒(heng)定
減(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)是(shi)采(cai)用控制(zhi)閥(fa)(fa)(fa)體(ti)內(nei)(nei)(nei)的(de)(de)(de)(de)(de)啟閉(bi)件的(de)(de)(de)(de)(de)開度來調(diao)(diao)節介(jie)質的(de)(de)(de)(de)(de)流量(liang)，將介(jie)質的(de)(de)(de)(de)(de)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)降低，同(tong)時借助閥(fa)(fa)(fa)后壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)的(de)(de)(de)(de)(de)作(zuo)用調(diao)(diao)節啟閉(bi)件的(de)(de)(de)(de)(de)開度，使閥(fa)(fa)(fa)后壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)保(bao)持在(zai)一(yi)定范圍內(nei)(nei)(nei)，并在(zai)閥(fa)(fa)(fa)體(ti)內(nei)(nei)(nei)或閥(fa)(fa)(fa)后噴入冷卻水(shui)，將介(jie)質的(de)(de)(de)(de)(de)溫度降低，這種閥(fa)(fa)(fa)門稱(cheng)(cheng)為減(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)減(jian)(jian)(jian)溫閥(fa)(fa)(fa)。減(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)快易優(you)自動(dong)化(hua)選型(xing)有收錄。該閥(fa)(fa)(fa)的(de)(de)(de)(de)(de)特點，是(shi)在(zai)進口(kou)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)不(bu)斷(duan)變化(hua)的(de)(de)(de)(de)(de)情況下，保(bao)持出口(kou)聽壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)和溫度值在(zai)一(yi)定的(de)(de)(de)(de)(de)范圍內(nei)(nei)(nei)。減(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)按結(jie)構形式(shi)(shi)(shi)(shi)(shi)(shi)(shi)可分(fen)為薄(bo)膜式(shi)(shi)(shi)(shi)(shi)(shi)(shi)、彈(dan)簧薄(bo)膜式(shi)(shi)(shi)(shi)(shi)(shi)(shi)、活塞式(shi)(shi)(shi)(shi)(shi)(shi)(shi)、杠(gang)桿式(shi)(shi)(shi)(shi)(shi)(shi)(shi)和波紋管(guan)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)；按閥(fa)(fa)(fa)座數(shu)目可人(ren)為單(dan)座式(shi)(shi)(shi)(shi)(shi)(shi)(shi)和雙座式(shi)(shi)(shi)(shi)(shi)(shi)(shi)；按閥(fa)(fa)(fa)瓣(ban)的(de)(de)(de)(de)(de)位(wei)置不(bu)同(tong)可分(fen)為正作(zuo)用式(shi)(shi)(shi)(shi)(shi)(shi)(shi)和反作(zuo)用式(shi)(shi)(shi)(shi)(shi)(shi)(shi)。先(xian)導(dao)(dao)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)減(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)當減(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)的(de)(de)(de)(de)(de)輸出壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)較高(gao)或通(tong)徑較大(da)時，用調(diao)(diao)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)彈(dan)簧直接調(diao)(diao)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)，則(ze)彈(dan)簧剛度必(bi)然過大(da)，流量(liang)變化(hua)時，輸出壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)波動(dong)較大(da)，閥(fa)(fa)(fa)的(de)(de)(de)(de)(de)結(jie)構尺寸也將增大(da)。為了克服這些缺點，可采(cai)用先(xian)導(dao)(dao)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)減(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)。先(xian)導(dao)(dao)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)減(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)的(de)(de)(de)(de)(de)工作(zuo)原理與直動(dong)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)的(de)(de)(de)(de)(de)基本相(xiang)同(tong)。先(xian)導(dao)(dao)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)減(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)所用的(de)(de)(de)(de)(de)調(diao)(diao)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)氣體(ti)，是(shi)由小型(xing)的(de)(de)(de)(de)(de)直動(dong)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)減(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)供給的(de)(de)(de)(de)(de)。若(ruo)把小型(xing)直動(dong)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)減(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)裝在(zai)閥(fa)(fa)(fa)體(ti)內(nei)(nei)(nei)部(bu)，則(ze)稱(cheng)(cheng)為內(nei)(nei)(nei)部(bu)先(xian)導(dao)(dao)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)減(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)；若(ruo)將小型(xing)直動(dong)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)減(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)裝在(zai)主閥(fa)(fa)(fa)體(ti)外部(bu)，則(ze)稱(cheng)(cheng)為外部(bu)先(xian)導(dao)(dao)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)減(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)。
