2BV型水環式(shi)真(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)適用(yong)(yong)(yong)于抽除氣(qi)(qi)體和水蒸(zheng)氣(qi)(qi)，吸(xi)氣(qi)(qi)壓(ya)(ya)力可(ke)以達到33mbar絕壓(ya)(ya)(真(zhen)空(kong)(kong)(kong)度)。當用(yong)(yong)(yong)變壓(ya)(ya)器油(you)作(zuo)為工(gong)作(zuo)液時(shi)（稱為油(you)環真(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)），吸(xi)氣(qi)(qi)壓(ya)(ya)力可(ke)達到6.7mbar絕壓(ya)(ya)(99.3%真(zhen)空(kong)(kong)(kong)度），可(ke)以取(qu)代(dai)往復式(shi)真(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)。當液環真(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)在吸(xi)氣(qi)(qi)壓(ya)(ya)力接近真(zhen)空(kong)(kong)(kong)下長(chang)期工(gong)作(zuo)時(shi)，應聯(lian)接氣(qi)(qi)蝕(shi)保護(hu)管，以對泵(beng)(beng)(beng)進(jin)行保護(hu)并氣(qi)(qi)蝕(shi)聲。作(zuo)為壓(ya)(ya)縮機(ji)使用(yong)(yong)(yong)時(shi)，其壓(ya)(ya)力較大至(zhi)0.26MPa(絕壓(ya)(ya))。作(zuo)為壓(ya)(ya)縮機(ji)使用(yong)(yong)(yong)時(shi)，隨著排氣(qi)(qi)壓(ya)(ya)力的升高(gao)會造成2BV泵(beng)(beng)(beng)功(gong)(gong)率的加大，訂貨時(shi)應注(zhu)明排氣(qi)(qi)壓(ya)(ya)力以選擇(ze)適當的電機(ji)功(gong)(gong)率。

2BV型(xing)水環式真(zhen)空(kong)泵作(zuo)為新(xin)一代節能型(xing)產品，其以的性(xing)能及(ji)眾多優點將取(qu)代同性(xing)能的SK、2SK系列水環真(zhen)空(kong)泵及(ji)W、WY、WL系列往復真(zhen)空(kong)泵。

2BV2-Ex、2BV6系列(lie)水環式(shi)真空泵/壓縮(suo)機主要用于抽(chou)除(chu)爆(bao)炸性氣體，及在各類(lei)易燃、易爆(bao)環境(jing)中(zhong)工(gong)作，其性能參數與2BV2、2BV5系列(lie)相應型號相同。

2BV系(xi)列不銹(xiu)鋼(gang)真(zhen)空泵(beng)可使用在各(ge)種(zhong)要求(qiu)較高的場合及潔凈度要求(qiu)較高的場合。根據(ju)工況(kuang)2BV系(xi)列不銹(xiu)鋼(gang)真(zhen)空泵(beng)的全部(bu)(bu)過(guo)流(liu)部(bu)(bu)件：泵(beng)體(ti)、泵(beng)蓋、圓盤、葉輪材質(zhi)可選用SUS304（0Cr18Ni9)、SUS316（0Cr17Ni12Mo2）、SUS316L（00Cr17Ni14Mo2）等各(ge)類不銹(xiu)鋼(gang)材質(zhi)，泵(beng)軸材質(zhi)：2Cr13或(huo)0Cr18Ni12Mo2Ti

2BV型水環(huan)式真空(kong)泵機械密(mi)封(feng)采用(yong)產(chan)品，密(mi)封(feng)件可(ke)采用(yong)氟橡膠或聚四氟乙烯。

相對于國(guo)內同類型SK、2SK、SZ等水(shui)環式真空泵，其有以下特點(dian)：

·2BV型水(shui)環式(shi)真空(kong)泵機(ji)泵同軸式(shi)直聯設計(ji)，節省(sheng)空(kong)間，易于安裝。

·2BV型(xing)水環(huan)式真空泵全部(bu)采用機械密封作(zuo)為標準配置。

·2BV型水環(huan)式真空泵(beng)全部(bu)設有氣蝕(shi)保護(hu)(hu)管(guan)接口，如在壓(ya)力下工(gong)作，開啟氣蝕(shi)保護(hu)(hu)管(guan)接口（或與(yu)分離(li)器連接）可在較(jiao)大限度(du)吸氣效果的情況(kuang)下氣蝕(shi)聲，并對(dui)泵(beng)進行保護(hu)(hu)。

·鋁青銅(tong)葉(xie)輪，，并(bing)提高了2BV型水(shui)環(huan)式(shi)真空泵(beng)的性(xing)。如過流部件采用不銹鋼材質，可工(gong)作在為(wei)苛(ke)刻的環(huan)境中。

·的(de)柔性(xing)排氣口設計，不會(hui)產生過壓縮，了2BV型水環式真空(kong)泵在其性(xing)能范圍(wei)內效(xiao)率較佳(jia)。

·全(quan)部采用Y2系列電機，防護等級IP54、IP55（普通為IP44）

·2BV型水(shui)環式(shi)真空泵全部采用(yong)NTN或NSK軸(zhou)承

2BV型水(shui)環式真空(kong)泵的應用范圍：

技術參數表

2BV型水環式真空泵的工(gong)作原(yuan)理：

2BV型水(shui)(shui)環(huan)(huan)(huan)(huan)式(shi)真空(kong)(kong)(kong)(kong)泵(beng)所(suo)示葉輪3偏心地安(an)裝在泵(beng)體(ti)(ti)之內(nei)(nei)(nei)，起動時向泵(beng)內(nei)(nei)(nei)注入高(gao)度的(de)水(shui)(shui)，因(yin)此(ci)當葉輪3旋轉(zhuan)時，水(shui)(shui)受(shou)離(li)心力的(de)作(zuo)用而在泵(beng)體(ti)(ti)內(nei)(nei)(nei)壁形(xing)成一(yi)旋轉(zhuan)水(shui)(shui)環(huan)(huan)(huan)(huan)1，水(shui)(shui)環(huan)(huan)(huan)(huan)下部內(nei)(nei)(nei)表面(mian)與輪轂相切，沿箭頭方向旋轉(zhuan)，在前半轉(zhuan)過程中(zhong)，2BV型水(shui)(shui)環(huan)(huan)(huan)(huan)式(shi)真空(kong)(kong)(kong)(kong)泵(beng)水(shui)(shui)環(huan)(huan)(huan)(huan)內(nei)(nei)(nei)表面(mian)逐漸(jian)與輪轂脫離(li)，因(yin)此(ci)在葉輪葉片間(jian)(jian)(jian)與水(shui)(shui)環(huan)(huan)(huan)(huan)形(xing)成封(feng)閉空(kong)(kong)(kong)(kong)間(jian)(jian)(jian)，隨著葉輪的(de)旋轉(zhuan)，該空(kong)(kong)(kong)(kong)間(jian)(jian)(jian)逐漸(jian)擴大，空(kong)(kong)(kong)(kong)間(jian)(jian)(jian)氣(qi)(qi)(qi)體(ti)(ti)壓(ya)力降低，氣(qi)(qi)(qi)體(ti)(ti)自圓(yuan)盤吸氣(qi)(qi)(qi)口被(bei)吸入；在后(hou)半轉(zhuan)過程中(zhong)，水(shui)(shui)環(huan)(huan)(huan)(huan)內(nei)(nei)(nei)表面(mian)逐漸(jian)與輪轂靠近，葉片間(jian)(jian)(jian)的(de)空(kong)(kong)(kong)(kong)間(jian)(jian)(jian)逐漸(jian)縮小，空(kong)(kong)(kong)(kong)間(jian)(jian)(jian)氣(qi)(qi)(qi)體(ti)(ti)壓(ya)力升高(gao)，高(gao)于排氣(qi)(qi)(qi)口壓(ya)力時，葉片間(jian)(jian)(jian)的(de)氣(qi)(qi)(qi)體(ti)(ti)自圓(yuan)盤排氣(qi)(qi)(qi)口被(bei)排出。如此(ci)葉輪每轉(zhuan)動一(yi)周，葉片間(jian)(jian)(jian)的(de)空(kong)(kong)(kong)(kong)間(jian)(jian)(jian)吸排氣(qi)(qi)(qi)一(yi)次，許多空(kong)(kong)(kong)(kong)間(jian)(jian)(jian)不(bu)停地工作(zuo)，2BV型水(shui)(shui)環(huan)(huan)(huan)(huan)式(shi)真空(kong)(kong)(kong)(kong)泵(beng)就連(lian)續不(bu)斷地抽吸或壓(ya)送氣(qi)(qi)(qi)體(ti)(ti)。

2BV型(xing)水(shui)環式真空泵由于在(zai)工(gong)作過程中(zhong)，做(zuo)功產生(sheng)熱量，會使工(gong)作水(shui)環發熱，同時一部分水(shui)和氣體一起(qi)被(bei)排周，因此，在(zai)工(gong)作過程中(zhong)，不斷(duan)地給(gei)泵供水(shui)，以冷卻和補充泵內消(xiao)耗的(de)水(shui)，滿足泵的(de)工(gong)作要求。

當2BV型水(shui)(shui)(shui)環式真空泵(beng)(beng)排(pai)出(chu)的(de)氣(qi)(qi)體(ti)不(bu)再利用(yong)時(shi)，在2BV型水(shui)(shui)(shui)環式真空泵(beng)(beng)排(pai)氣(qi)(qi)口上接有氣(qi)(qi)水(shui)(shui)(shui)分(fen)離(li)器(qi)，廢氣(qi)(qi)和(he)所帶的(de)部分(fen)水(shui)(shui)(shui)排(pai)入氣(qi)(qi)水(shui)(shui)(shui)分(fen)離(li)器(qi)后，氣(qi)(qi)水(shui)(shui)(shui)分(fen)離(li)，氣(qi)(qi)體(ti)由排(pai)氣(qi)(qi)管(guan)排(pai)出(chu)，留下的(de)水(shui)(shui)(shui)經回(hui)水(shui)(shui)(shui)管(guan)供(gong)(gong)至泵(beng)(beng)內繼續使(shi)用(yong)。隨(sui)著工(gong)作時(shi)間的(de)延長，工(gong)作水(shui)(shui)(shui)溫度會不(bu)斷地升高(gao)，這(zhe)時(shi)需從(cong)供(gong)(gong)水(shui)(shui)(shui)管(guan)供(gong)(gong)給冷水(shui)(shui)(shui)，以(yi)降低(di)工(gong)作水(shui)(shui)(shui)的(de)溫度，泵(beng)(beng)能達到(dao)所要(yao)(yao)求的(de)技術(shu)要(yao)(yao)求和(he)性能指(zhi)標。

2BV型水(shui)環式真空(kong)泵及壓縮機系(xi)統由(you)真空(kong)泵（壓縮機）、電動(dong)機、氣水(shui)分離器管路組(zu)成。

2BV型水(shui)(shui)(shui)(shui)(shui)環式真(zhen)空(kong)泵及(ji)壓(ya)縮(suo)機與氣(qi)(qi)水(shui)(shui)(shui)(shui)(shui)分(fen)離(li)(li)(li)器(qi)的(de)工(gong)作過程如下：氣(qi)(qi)體由管(guan)路經(jing)(jing)閥(fa)門(men)(men)進入2BV真(zhen)空(kong)泵或壓(ya)縮(suo)機，然(ran)后(hou)經(jing)(jing)排(pai)(pai)氣(qi)(qi)管(guan)進入氣(qi)(qi)水(shui)(shui)(shui)(shui)(shui)分(fen)離(li)(li)(li)器(qi)中，經(jing)(jing)氣(qi)(qi)水(shui)(shui)(shui)(shui)(shui)分(fen)離(li)(li)(li)器(qi)排(pai)(pai)氣(qi)(qi)管(guan)排(pai)(pai)出。當作為壓(ya)縮(suo)機使用時(shi)，經(jing)(jing)壓(ya)縮(suo)機排(pai)(pai)出的(de)氣(qi)(qi)水(shui)(shui)(shui)(shui)(shui)混合物在氣(qi)(qi)水(shui)(shui)(shui)(shui)(shui)分(fen)離(li)(li)(li)器(qi)中分(fen)離(li)(li)(li)后(hou)，氣(qi)(qi)體經(jing)(jing)閥(fa)門(men)(men)輸送到需要(yao)壓(ya)縮(suo)氣(qi)(qi)體的(de)系統上去。2BV型水(shui)(shui)(shui)(shui)(shui)環式真(zhen)空(kong)泵或壓(ya)縮(suo)機內(nei)的(de)工(gong)作水(shui)(shui)(shui)(shui)(shui)是(shi)由氣(qi)(qi)水(shui)(shui)(shui)(shui)(shui)分(fen)離(li)(li)(li)器(qi)不(bu)經(jing)(jing)冷卻排(pai)(pai)至真(zhen)空(kong)泵重新使用，其余工(gong)作水(shui)(shui)(shui)(shui)(shui)由供(gong)水(shui)(shui)(shui)(shui)(shui)管(guan)補充，供(gong)水(shui)(shui)(shui)(shui)(shui)量(liang)的(de)大(da)小，由供(gong)水(shui)(shui)(shui)(shui)(shui)管(guan)上的(de)閥(fa)門(men)(men)來調整(zheng)。

氣(qi)(qi)(qi)體(ti)(ti)抽吸和壓(ya)送系(xi)統的區別(bie)僅在于(yu)(yu)氣(qi)(qi)(qi)水(shui)(shui)分(fen)離器的內部構造有(you)所(suo)不同。抽吸氣(qi)(qi)(qi)體(ti)(ti)時(shi)，吸氣(qi)(qi)(qi)口(kou)壓(ya)力低于(yu)(yu)大氣(qi)(qi)(qi)壓(ya)，而排氣(qi)(qi)(qi)口(kou)壓(ya)力等于(yu)(yu)大氣(qi)(qi)(qi)壓(ya)，氣(qi)(qi)(qi)水(shui)(shui)分(fen)離器有(you)溢水(shui)(shui)管；壓(ya)送氣(qi)(qi)(qi)體(ti)(ti)時(shi)，吸氣(qi)(qi)(qi)口(kou)為常壓(ya)（也可為真空狀態），排氣(qi)(qi)(qi)口(kou)壓(ya)力高(gao)于(yu)(yu)一個(ge)大氣(qi)(qi)(qi)壓(ya)，為輸送氣(qi)(qi)(qi)體(ti)(ti)壓(ya)力，氣(qi)(qi)(qi)水(shui)(shui)分(fen)離器的水(shui)(shui)位通過溢水(shui)(shui)開關(guan)來控制(zhi)。