4WE10系列REXROTH換向閥技術分析4WE10系列REXROTH換向(xiang)閥(fa)動(dong)作準確、自動(dong)化程度高(gao)、工作穩定可靠，但需附設(she)驅動(dong)和冷卻(que)系統(tong)，結構較為(wei)復雜;閥(fa)瓣式(shi)結構則較簡單，多(duo)用于(yu)流(liu)量(liang)較小的生產(chan)工藝上(shang)。4WE10系列REXROTH換向(xiang)閥(fa)在(zai)石油(you)、化工、礦山(shan)和冶金(jin)等行業中(zhong)，六通(tong)換向(xiang)閥(fa)是(shi)一種重要的流(liu)體換向(xiang)設(she)備。該閥(fa)安裝在(zai)稀油(you)潤滑系統(tong)輸送(song)潤滑油(you)的管道中(zhong)。通(tong)過(guo)變換密封(feng)組件在(zai)閥(fa)體中(zhong)的相對(dui)位置，使(shi)閥(fa)體各(ge)通(tong)道連通(tong)或斷開，從而控制流(liu)體的換向(xiang)和啟(qi)停。
4WE10系列(lie)REXROTH換(huan)向(xiang)閥主要由閥體、密(mi)封(feng)(feng)組(zu)件、凸輪(lun)(lun)、閥桿(gan)、手柄(bing)(bing)(bing)和閥蓋等(deng)零部件組(zu)成(圖1)。閥門(men)由手柄(bing)(bing)(bing)驅動，通(tong)(tong)過手柄(bing)(bing)(bing)帶(dai)動閥桿(gan)與(yu)(yu)(yu)(yu)(yu)凸輪(lun)(lun)旋轉，凸輪(lun)(lun)具(ju)有定位(wei)驅動與(yu)(yu)(yu)(yu)(yu)鎖定密(mi)封(feng)(feng)組(zu)件的(de)開啟與(yu)(yu)(yu)(yu)(yu)關(guan)閉(bi)(bi)功能(neng)。手柄(bing)(bing)(bing)逆時(shi)針旋轉，兩(liang)(liang)組(zu)密(mi)封(feng)(feng)組(zu)件分(fen)別在凸輪(lun)(lun)的(de)作用下關(guan)閉(bi)(bi)下端的(de)兩(liang)(liang)個(ge)通(tong)(tong)道(dao)，上端的(de)兩(liang)(liang)個(ge)通(tong)(tong)道(dao)分(fen)別與(yu)(yu)(yu)(yu)(yu)管道(dao)裝置(zhi)的(de)進(jin)口(kou)相通(tong)(tong)。反之，上端的(de)兩(liang)(liang)個(ge)通(tong)(tong)道(dao)關(guan)閉(bi)(bi)，下端兩(liang)(liang)個(ge)通(tong)(tong)道(dao)與(yu)(yu)(yu)(yu)(yu)管道(dao)裝置(zhi)的(de)進(jin)口(kou)相通(tong)(tong)，實現了不停車換(huan)向(xiang)。
力士樂電(dian)磁(ci)(ci)閥(fa)它由(you)閥(fa)體(ti)(ti)、閥(fa)罩、電(dian)磁(ci)(ci)組(zu)件、彈(dan)(dan)簧(huang)(huang)及密封(feng)結構等部件組(zu)成，動(dong)(dong)(dong)(dong)(dong)鐵(tie)(tie)(tie)芯(xin)(xin)(xin)底(di)部的(de)(de)密封(feng)塊借助彈(dan)(dan)簧(huang)(huang)的(de)(de)壓力將閥(fa)體(ti)(ti)進(jin)氣(qi)口(kou)關(guan)閉。通電(dian)后，電(dian)磁(ci)(ci)鐵(tie)(tie)(tie)吸合(he)，動(dong)(dong)(dong)(dong)(dong)鐵(tie)(tie)(tie)芯(xin)(xin)(xin)上部帶(dai)彈(dan)(dan)簧(huang)(huang)的(de)(de)密封(feng)塊把排氣(qi)口(kou)關(guan)閉，氣(qi)流(liu)(liu)從(cong)進(jin)氣(qi)口(kou)進(jin)入(ru)膜頭(tou)，起(qi)到控(kong)(kong)制(zhi)(zhi)作(zuo)(zuo)用(yong)。當(dang)失電(dian)時，電(dian)磁(ci)(ci)力消失，動(dong)(dong)(dong)(dong)(dong)鐵(tie)(tie)(tie)芯(xin)(xin)(xin)在彈(dan)(dan)簧(huang)(huang)力作(zuo)(zuo)用(yong)下離開固(gu)定(ding)鐵(tie)(tie)(tie)芯(xin)(xin)(xin)，向(xiang)下移動(dong)(dong)(dong)(dong)(dong)，將排氣(qi)口(kou)打開，堵住進(jin)氣(qi)口(kou)，膜頭(tou)氣(qi)流(liu)(liu)經排氣(qi)口(kou)排出，膜片恢復(fu)原來(lai)位置。在我(wo)們(men)的(de)(de)制(zhi)(zhi)氧(yang)設備(bei)中(zhong)，在透平膨脹機進(jin)口(kou)薄膜調節閥(fa)的(de)(de)緊(jin)急切斷等處有(you)應(ying)用(yong)。REXROTH換(huan)向(xiang)閥(fa)技術參數；Rexroth四通電(dian)磁(ci)(ci)閥(fa)在我(wo)們(men)的(de)(de)生產中(zhong)應(ying)用(yong)也很(hen)多，其工作(zuo)(zuo)原理如下：當(dang)有(you)電(dian)流(liu)(liu)通過(guo)線圈時，產生勵磁(ci)(ci)作(zuo)(zuo)用(yong)，固(gu)定(ding)鐵(tie)(tie)(tie)芯(xin)(xin)(xin)吸合(he)動(dong)(dong)(dong)(dong)(dong)鐵(tie)(tie)(tie)芯(xin)(xin)(xin)，動(dong)(dong)(dong)(dong)(dong)鐵(tie)(tie)(tie)芯(xin)(xin)(xin)帶(dai)動(dong)(dong)(dong)(dong)(dong)滑(hua)閥(fa)芯(xin)(xin)(xin)并壓縮彈(dan)(dan)簧(huang)(huang)，改(gai)變(bian)了(le)滑(hua)閥(fa)芯(xin)(xin)(xin)的(de)(de)位置，從(cong)而改(gai)變(bian)了(le)流(liu)(liu)體(ti)(ti)的(de)(de)方向(xiang)。當(dang)線圈失電(dian)時，依靠彈(dan)(dan)簧(huang)(huang)的(de)(de)彈(dan)(dan)力推(tui)動(dong)(dong)(dong)(dong)(dong)滑(hua)閥(fa)芯(xin)(xin)(xin)，頂(ding)回動(dong)(dong)(dong)(dong)(dong)鐵(tie)(tie)(tie)芯(xin)(xin)(xin)，使流(liu)(liu)體(ti)(ti)按原來(lai)的(de)(de)方向(xiang)流(liu)(liu)動(dong)(dong)(dong)(dong)(dong)。在我(wo)們(men)制(zhi)(zhi)氧(yang)生產中(zhong)，分子(zi)篩切換(huan)系統強(qiang)制(zhi)(zhi)閥(fa)的(de)(de)開關(guan)就是通過(guo)二位四通電(dian)磁(ci)(ci)閥(fa)來(lai)控(kong)(kong)制(zhi)(zhi)的(de)(de)，氣(qi)流(liu)(liu)分別供至(zhi)強(qiang)制(zhi)(zhi)閥(fa)的(de)(de)活塞兩端(duan)。從(cong)而來(lai)控(kong)(kong)制(zhi)(zhi)強(qiang)制(zhi)(zhi)閥(fa)的(de)(de)啟(qi)閉。
4WE10系列REXROTH換向閥技術分析：
1）根(gen)據介質流(liu)向要(yao)求及(ji)管(guan)道連接(jie)方式選(xuan)擇閥(fa)門通口及(ji)型號；2）根(gen)據流(liu)量和閥(fa)門Kv值選(xuan)定公稱(cheng)通徑，也可(ke)選(xuan)同(tong)管(guan)道內徑；3）工作(zuo)壓(ya)差：zui低工作(zuo)壓(ya)差在0.04Mpa以上是(shi)可(ke)選(xuan)用(yong)(yong)間接(jie)先(xian)導(dao)式；zui低工作(zuo)壓(ya)差接(jie)近或小于零的必須選(xuan)用(yong)(yong)直動式或分(fen)步直接(jie)式。
3、環境條件
1）環(huan)境(jing)的zui高和(he)zui低溫度應(ying)(ying)選(xuan)在允(yun)許范圍(wei)之內；2）環(huan)境(jing)中(zhong)相對濕度高及有水(shui)滴雨淋等(deng)場合(he)，應(ying)(ying)選(xuan)防水(shui)電磁閥(fa)；3）環(huan)境(jing)中(zhong)經常有振動，顛(dian)簸和(he)沖擊等(deng)場合(he)應(ying)(ying)選(xuan)特殊品種，例如船用電磁閥(fa)；4）在有腐蝕性或爆炸性環(huan)境(jing)中(zhong)的使用應(ying)(ying)優先根據(ju)安(an)全(quan)性要求選(xuan)用耐發蝕型；5）環(huan)境(jing)空間(jian)若受(shou)限制，需選(xuan)用多功能(neng)電磁閥(fa)，因其省去(qu)了旁路及三只(zhi)手(shou)動閥(fa)且便于在線維修。
4、電源條件
1）根(gen)據(ju)供電(dian)電(dian)源(yuan)種類，分別選用(yong)交流和直(zhi)流電(dian)磁閥(fa)。一般來(lai)說交流電(dian)源(yuan)取用(yong)方便；2）電(dian)壓規格用(yong)盡量優先(xian)選用(yong)AC220V.DC24V；
3）電(dian)(dian)源電(dian)(dian)壓波(bo)動通(tong)常交流(liu)選(xuan)用(yong)+%10%.-15%，直流(liu)允許±%10左(zuo)右，如(ru)若超差，須采取穩(wen)壓措施；4）應根據電(dian)(dian)源容(rong)量選(xuan)擇額定電(dian)(dian)流(liu)和消(xiao)耗功率(lv)。須注意交流(liu)起(qi)動時VA值較高，在(zai)容(rong)量不足時應優先選(xuan)用(yong)間接導(dao)式電(dian)(dian)磁閥。
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