防(fang)爆氣動塑(su)料閥(fa)門塑(su)料法蘭(lan)蓋(gai)執(zhi)行(xing)器(qi)特點：
  防爆氣動(dong)(dong)塑料(liao)閥門上的(de)氣動(dong)(dong)執(zhi)行(xing)機構(gou)俗稱氣動(dong)(dong)頭又稱氣動(dong)(dong)執(zhi)行(xing)器按其能源形(xing)式(shi)分為(wei)氣動(dong)(dong),可以分為(wei)單(dan)作(zuo)用(yong)(yong)(yong)和雙(shuang)作(zuo)用(yong)(yong)(yong)兩種類(lei)型,執(zhi)行(xing)器的(de)開(kai)關動(dong)(dong)作(zuo)都通過氣源來驅動(dong)(dong)執(zhi)行(xing),叫做DOUBLEACTING雙(shuang)作(zuo)用(yong)(yong)(yong)。SPRINGRETURN單(dan)作(zuo)用(yong)(yong)(yong)執(zhi)行(xing)器只(zhi)有開(kai)或者關是氣源驅動(dong)(dong),相反的(de)動(dong)(dong)作(zuo)則由彈簧復位,氣動球閥(fa)執(zhi)行(xing)器的(de)執(zhi)適(shi)用(yong)于要求(qiu)有較(jiao)大推(tui)力的(de)場合(he),而(er)薄(bo)膜式(shi)行(xing)程較(jiao)小(xiao),防(fang)爆氣動UPVC閥門(men)只能直(zhi)接帶動閥桿,撥叉式(shi)氣動執(zhi)行(xing)器具有扭矩(ju)大,空(kong)間小(xiao),扭矩(ju)曲(qu)線(xian)更符(fu)合(he)閥門(men)的(de)扭矩(ju)曲(qu)線(xian)等(deng)特點,但是不很(hen)美觀,常用(yong)在大扭矩(ju)的(de)閥門(men)上,齒(chi)輪(lun)齒(chi)條式(shi)氣動執(zhi)行(xing)機(ji)構有結構簡單,動作平(ping)穩可(ke)靠,防(fang)爆氣動UPVC閥門(men)并且安全防(fang)爆等(deng)優點,上海歡琪牌塑料法蘭蓋在發電廠,化工,煉油等對安全要求較高的生產過程中有廣泛的應用。
上海歡琪牌塑料法蘭蓋

1、接受連續的(de)氣信(xin)號,輸出直線位移(yi)（加電/氣轉換(huan)裝置后,也可以接受連續的(de)電信(xin)號）,有(you)的(de)配上搖臂后,可輸出角位移(yi)。
2、防(fang)爆氣動塑料閥(fa)門有正反(fan)作用功(gong)能。
3、移動速度大,但負載增(zeng)加時速度會變慢。
4、輸出(chu)力(li)與(yu)操(cao)作壓力(li)有(you)關。
5、可靠性高,但氣源中斷后閥門不能保(bao)持(chi)（加(jia)保(bao)位閥后可以保(bao)持(chi)）。
6、不(bu)便實(shi)現分段控制和程(cheng)序控制。
7、防爆氣動塑料閥門檢修(xiu)維護簡(jian)單,對環境(jing)的適應(ying)性好。
8、輸出(chu)功率較大。
9、防爆(bao)(bao)氣動(dong)塑(su)料閥門(men)具(ju)有(you)防爆(bao)(bao)功能。
防爆氣動UPVC閥門(men)彈簧復(fu)位執行機構的(de)選(xuan)用示(shi)例
彈(dan)簧關(guan)(失氣)
球閥的力矩=80NM
安(an)全(quan)系數(25%)=80NM+25%=100NM
氣源(yuan)壓力(li)=0.6MPa
被(bei)選用的(de)SY-SR執(zhi)行機(ji)構是(shi)SR125-05，因(yin)為可產生下(xia)列數值：
防爆氣動(dong)UPVC閥(fa)門彈簧行程0o=119.2NM
防爆氣(qi)動UPVC閥門彈簧行(xing)程90o=216.2NM
空氣行程0o=228.7NM
防爆氣動UPVC閥(fa)門(men)空氣行程90o=118.8NM
   防爆(bao)氣(qi)動(dong)(dong)塑料閥門執行(xing)器工作原理當壓縮空氣(qi)從(cong)A管咀進入(ru)氣(qi)動(dong)(dong)執行(xing)器時,氣(qi)體推動(dong)(dong)雙活塞向(xiang)兩端(缸蓋(gai)端)直線(xian)運動(dong)(dong),活塞上的齒條帶(dai)動(dong)(dong)旋轉軸(zhou)上的齒輪逆時針(zhen)方(fang)向(xiang)轉動(dong)(dong)90度,閥門即被打開(kai),此時歡琪氣(qi)(qi)動(dong)(dong)閥門(men)氣(qi)(qi)動(dong)(dong)執(zhi)行(xing)閥兩端的(de)氣(qi)(qi)體(ti)隨B管(guan)(guan)咀(ju)(ju)(ju)排出,反之當壓縮(suo)空氣(qi)(qi)從(cong)B管(guan)(guan)咀(ju)(ju)(ju)進入氣(qi)(qi)動(dong)(dong)執(zhi)行(xing)器(qi)的(de)兩端時,氣(qi)(qi)體(ti)推(tui)動(dong)(dong)雙(shuang)塞(sai)向中間(jian)直(zhi)線運動(dong)(dong),活塞(sai)上的(de)齒條帶動(dong)(dong)旋轉(zhuan)軸(zhou)上的(de)齒輪(lun)順(shun)時針(zhen)方向轉(zhuan)動(dong)(dong)90度,閥門(men)即(ji)被關閉,防(fang)爆氣(qi)(qi)動(dong)(dong)UPVC閥門(men)此時氣(qi)(qi)動(dong)(dong)執(zhi)行(xing)器(qi)中間(jian)的(de)氣(qi)(qi)體(ti)隨A管(guan)(guan)咀(ju)(ju)(ju)排出,以上為(wei)(wei)(wei)(wei)標(biao)準(zhun)型(xing)的(de)傳動(dong)(dong)原(yuan)理(li)(li),根據用戶(hu)需(xu)求,氣(qi)(qi)動(dong)(dong)執(zhi)行(xing)器(qi)可裝(zhuang)置成與(yu)標(biao)準(zhun)型(xing)相反的(de)傳動(dong)(dong)原(yuan)理(li)(li),即(ji)選準(zhun)軸(zhou)順(shun)時針(zhen)方向轉(zhuan)動(dong)(dong)為(wei)(wei)(wei)(wei)開啟(qi)閥門(men),逆時針(zhen)方向轉(zhuan)動(dong)(dong)為(wei)(wei)(wei)(wei)關閉防(fang)爆氣(qi)(qi)動(dong)(dong)塑料閥門(men),單(dan)作用(彈(dan)簧復位(wei)型(xing))氣(qi)(qi)動(dong)(dong)執(zhi)行(xing)器(qi)A管(guan)(guan)咀(ju)(ju)(ju)為(wei)(wei)(wei)(wei)進氣(qi)(qi)口(kou),B管(guan)(guan)咀(ju)(ju)(ju)為(wei)(wei)(wei)(wei)排氣(qi)(qi)孔(B管(guan)(guan)咀(ju)(ju)(ju)應安(an)裝(zhuang)消聲器(qi)),A管(guan)(guan)咀(ju)(ju)(ju)進氣(qi)(qi)為(wei)(wei)(wei)(wei)開啟(qi)閥門(men),斷氣(qi)(qi)時靠彈(dan)簧力關閉閥門(men)。
以(yi)上(shang)閥(fa)門防爆(bao)氣動塑料閥(fa)門與防爆(bao)氣動UPVC閥(fa)門知識編輯版權為(wei)上(shang)海歡琪塑膠管道(dao)有限(xian)公(gong)司所有,本文件內容(rong)變更(geng)時概不另行通知,本公(gong)司有終解權。