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循(xun)環(huan)(huan)水(shui)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)泵(beng)又(you)叫水(shui)環(huan)(huan)式(shi)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)泵(beng)是(shi)(shi)一(yi)(yi)種(zhong)抽真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)泵(beng)。循(xun)環(huan)(huan)泵(beng)是(shi)(shi)在循(xun)環(huan)(huan)水(shui)多(duo)用(yong)(yong)(yong)(yong)(yong)(yong)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)泵(beng)的(de)(de)基礎上，根(gen)據(ju)實驗(yan)室(shi)面(mian)積較小這一(yi)(yi)特點，參照日本臺式(shi)泵(beng)，一(yi)(yi)次性(xing)成(cheng)型(xing)外殼(ke)，縮小體(ti)(ti)積改進而(er)成(cheng)，具(ju)有體(ti)(ti)積小，重(zhong)量輕，外型(xing)美(mei)觀等(deng)特點，雙(shuang)(shuang)表(biao)(biao)、雙(shuang)(shuang)頭抽氣,四(si)表(biao)(biao)四(si)抽頭，雙(shuang)(shuang)面(mian)相同的(de)(de)多(duo)用(yong)(yong)(yong)(yong)(yong)(yong)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)泵(beng)，亦可(ke)在任意一(yi)(yi)面(mian)開機(ji)(ji)、關機(ji)(ji)。機(ji)(ji)體(ti)(ti)采用(yong)(yong)(yong)(yong)(yong)(yong)雙(shuang)(shuang)抽頭，可(ke)單獨或并聯使用(yong)(yong)(yong)(yong)(yong)(yong)裝有兩個(ge)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)表(biao)(biao)。主機(ji)(ji)采用(yong)(yong)(yong)(yong)(yong)(yong)不(bu)銹鋼機(ji)(ji)芯(xin)和(he)防腐材質機(ji)(ji)芯(xin)兩種(zhong)型(xing)號制造(zao)。耐腐蝕、無(wu)污(wu)染、噪音低、移動方便，還(huan)可(ke)根(gen)據(ju)用(yong)(yong)(yong)(yong)(yong)(yong)戶(hu)需要加裝真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)調節(jie)閥。它是(shi)(shi)以循(xun)環(huan)(huan)水(shui)作(zuo)為工(gong)作(zuo)流(liu)體(ti)(ti)，利用(yong)(yong)(yong)(yong)(yong)(yong)射流(liu)產(chan)生負壓原(yuan)理(li)而(er)設(she)計(ji)的(de)(de)一(yi)(yi)種(zhong)多(duo)用(yong)(yong)(yong)(yong)(yong)(yong)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)泵(beng)。

產品特(te)點：

（1）本機采(cai)用雙抽頭，可單(dan)獨或并聯(lian)使用裝(zhuang)有兩個(ge)真(zhen)空(kong)表

（2）主機采用優質(zhi)304不銹鋼材質(zhi)機芯制(zhi)造。

（3）耐腐蝕、無(wu)污染、噪(zao)音低、移動方便，還可根據用戶需要加裝真(zhen)空調節閥。

（4）可同時有兩名學生(sheng)進行化學實驗，縮(suo)小實驗空間。

工作原理(li)：

其(qi)工作(zuo)介(jie)質為(wei)水(shui)(shui)。循環水(shui)(shui)真空泵的(de)抽真空原理與射流式抽氣器不同．它仍屬于離心式機(ji)械(xie)泵。圓筒(tong)形泵殼內偏心裝置著葉(xie)輪(lun)轉子．其(qi)葉(xie)片(pian)(pian)(pian)為(wei)前彎式．當葉(xie)輪(lun)旋轉時(shi)。工作(zuo)水(shui)(shui)在離心力作(zuo)用(yong)下(xia)形成(cheng)沿(yan)泵殼旋流的(de)水(shui)(shui)環。由(you)于葉(xie)輪(lun)偏心位(wei)置．水(shui)(shui)環相(xiang)對(dui)葉(xie)片(pian)(pian)(pian)作(zuo)相(xiang)對(dui)運(yun)行(xing)．使(shi)相(xiang)鄰兩(liang)葉(xie)片(pian)(pian)(pian)之間的(de)空間容積呈周期性變(bian)化．有如(ru)液體(ti)“活(huo)塞”葉(xie)柵(zha)中(zhong)(zhong)作(zuo)徑(jing)向往復運(yun)行(xing)。例如(ru)位(wei)于圖中(zhong)(zhong)右側(ce)的(de)葉(xie)片(pian)(pian)(pian)從(cong)右上方旋轉到下(xia)方時(shi)．每兩(liang)葉(xie)片(pian)(pian)(pian)間的(de)水(shui)(shui)活(huo)塞”就離心向外推去．使(shi)這空間容積由(you)小(xiao)(xiao)逐漸變(bian)大．到最下(xia)部(bu)時(shi)達最大。于是就從(cong)軸向吸(xi)(xi)氣口4把(ba)氣體(ti)吸(xi)(xi)進來。而當葉(xie)片(pian)(pian)(pian)由(you)最下(xia)方向左上方轉動過程中(zhong)(zhong)．“水(shui)(shui)活(huo)塞”向軸心方向作(zuo)相(xiang)對(dui)運(yun)動．兩(liang)葉(xie)片(pian)(pian)(pian)間的(de)空間義逐漸由(you)大變(bian)小(xiao)(xiao)．于是將(jiang)吸(xi)(xi)入(ru)的(de)氣體(ti)漸漸壓縮。通過排氣口6排出。隨著葉(xie)輪(lun)穩(wen)定轉動．每個(ge)容積輪(lun)反復變(bian)化．使(shi)吸(xi)(xi)、排氣過程繼續下(xia)去。

使用方法：

1、準備工(gong)作。將循(xun)環水(shui)(shui)多(duo)用真空(kong)泵平(ping)放于工(gong)作臺上，首次使(shi)用時，打開(kai)水(shui)(shui)箱(xiang)(xiang)上蓋(gai)注入清潔的涼水(shui)(shui)（亦(yi)可經由放水(shui)(shui)軟管加水(shui)(shui)），當水(shui)(shui)面即(ji)將升至(zhi)水(shui)(shui)箱(xiang)(xiang)后面的溢(yi)水(shui)(shui)嘴下高(gao)度時停止(zhi)加水(shui)(shui)，重復(fu)開(kai)機可不再加水(shui)(shui)。每星期至(zhi)少更換一次水(shui)(shui)，如水(shui)(shui)質污染嚴(yan)重，使(shi)用率高(gao)，則須縮(suo)短(duan)更換水(shui)(shui)的時間(jian)，保持水(shui)(shui)箱(xiang)(xiang)中的水(shui)(shui)質清潔。

2、抽(chou)(chou)真空(kong)作(zuo)業(ye)。將需(xu)要抽(chou)(chou)真空(kong)的設備的抽(chou)(chou)氣套管緊(jin)密套接于本機抽(chou)(chou)氣嘴上，關(guan)閉循(xun)環(huan)開關(guan)，接通電源(yuan)，打開電源(yuan)開關(guan)，即可(ke)開始抽(chou)(chou)真空(kong)作(zuo)業(ye)，通過與抽(chou)(chou)氣嘴對應(ying)的真空(kong)表可(ke)觀察真空(kong)度。

3、當循環水多用真空(kong)(kong)泵需長(chang)時間連續作業(ye)時，水箱(xiang)內的水溫將(jiang)會升(sheng)高，影響(xiang)真空(kong)(kong)度，此(ci)時，可(ke)將(jiang)放(fang)水軟管與(yu)水源（自來水）接通，溢(yi)水嘴作排水出(chu)口，適當控制自來水流量，即可(ke)保持水箱(xiang)內水溫不升(sheng)，使真空(kong)(kong)度穩定。

4、當需要(yao)為反應(ying)裝置提供冷卻(que)循(xun)環(huan)(huan)水(shui)時，在前面第3條操作(zuo)的基礎上(shang)，將需要(yao)冷卻(que)的裝置進水(shui)、出水(shui)管分別接到(dao)本機(ji)后部(bu)的循(xun)環(huan)(huan)水(shui)出水(shui)嘴(zui)、進水(shui)嘴(zui)上(shang)，轉動循(xun)環(huan)(huan)水(shui)開(kai)關至ON位置，即可實現(xian)循(xun)環(huan)(huan)冷卻(que)水(shui)供應(ying)。