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2024
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07
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28
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2024
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07
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24
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2024
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2024
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05
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08
專(zhuan)家團隊
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1
2021
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04
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22
在使用(yong)水(shui)環(huan)真空(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)時(shi),氣(qi)蝕是一個(ge)普遍(bian)的(de)(de)(de)問(wen)題。水(shui)環(huan)泵(beng)(beng)(beng)(beng)的(de)(de)(de)真空(kong)(kong)(kong)度(du)不(bu)能滿足(zu)要求,影響(xiang)(xiang)水(shui)環(huan)泵(beng)(beng)(beng)(beng)的(de)(de)(de)正常使用(yong)。因(yin)(yin)此(ci),如(ru)(ru)(ru)何避(bi)免(mian)水(shui)環(huan)泵(beng)(beng)(beng)(beng)的(de)(de)(de)氣(qi)蝕已成為(wei)許(xu)多(duo)用(yong)戶面(mian)臨的(de)(de)(de)主要問(wen)題。水(shui)環(huan)真空(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)制造商向(xiang)我(wo)們介紹了以(yi)下(xia)內容。 在水(shui)環(huan)式(shi)真空(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)運行期間,真空(kong)(kong)(kong)度(du)越高(gao),沸點越低(di)。當(dang)液體沸騰時(shi),會形成許(xu)多(duo)氣(qi)泡(pao)。這些(xie)小(xiao)氣(qi)泡(pao)很(hen)容易破(po)裂(lie),在研(yan)磨過(guo)程(cheng)中葉輪(lun)(lun)會受到嚴重影響(xiang)(xiang)。在白天和黑夜里,葉輪(lun)(lun)會破(po)裂(lie)。如(ru)(ru)(ru)果(guo)(guo)嚴重損壞,則由(you)于(yu)無法(fa)修復,可(ke)(ke)能會被迫更換。如(ru)(ru)(ru)果(guo)(guo)工作液流(liu)量過(guo)大(da),它們還會產生尖銳的(de)(de)(de)噪(zao)音(yin),因(yin)(yin)此(ci)有必要降(jiang)低(di)流(liu)量。 處(chu)理措施(shi):針對這種現(xian)象(xiang),可(ke)(ke)將葉輪(lun)(lun)設計為(wei)銅葉輪(lun)(lun),不(bu)銹(xiu)鋼葉輪(lun)(lun)等(deng)材料。水(shui)環(huan)泵(beng)(beng)(beng)(beng)的(de)(de)(de)前面(mian)有一個(ge)氣(qi)蝕閥。當(dang)空(kong)(kong)(kong)化(hua)噪(zao)音(yin)太大(da)時(shi),稍微轉動空(kong)(kong)(kong)化(hua)閥可(ke)(ke)以(yi)降(jiang)低(di)噪(zao)音(yin)。但是,由(you)于(yu)真空(kong)(kong)(kong)度(du)會大(da)大(da)降(jiang)低(di),因(yin)(yin)此(ci)要求高(gao)真空(kong)(kong)(kong)度(du)的(de)(de)(de)工藝不(bu)適用(yong)。 在使用(yong)水(shui)環(huan)式(shi)真空(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)的(de)(de)(de)過(guo)程(cheng)中,如(ru)(ru)(ru)果(guo)(guo)出(chu)現(xian)氣(qi)蝕現(xian)象(xiang),應(ying)立(li)即將其停(ting)止,并應(ying)采取有效(xiao)措施(shi)停(ting)止該(gai)過(guo)程(cheng)。另外,在實踐中,遵循正確的(de)(de)(de)步驟(zou)可(ke)(ke)以(yi)有效(xiao)地(di)防止出(chu)現(xian)氣(qi)穴問(wen)題。
2
2021
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05
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12
真(zhen)空(kong)泵(beng)(beng)(beng)的(de)(de)(de)(de)維(wei)(wei)(wei)護(hu):真(zhen)空(kong)泵(beng)(beng)(beng)的(de)(de)(de)(de)排氣(qi)閥(fa)(fa)(fa)的(de)(de)(de)(de)拆(chai)卸(xie)和(he)維(wei)(wei)(wei)修步(bu)(bu)驟(zou)文字:真(zhen)空(kong)泵(beng)(beng)(beng)的(de)(de)(de)(de)排氣(qi)閥(fa)(fa)(fa)不能(neng)正常工作,這當然會影響真(zhen)空(kong)泵(beng)(beng)(beng)的(de)(de)(de)(de)真(zhen)空(kong)度。因此,在真(zhen)空(kong)泵(beng)(beng)(beng)的(de)(de)(de)(de)維(wei)(wei)(wei)護(hu)中排氣(qi)閥(fa)(fa)(fa)的(de)(de)(de)(de)拆(chai)卸(xie)和(he)維(wei)(wei)(wei)修非常重(zhong)要(yao)(yao)。今天我(wo)將(jiang)整理(li)排氣(qi)門(men)的(de)(de)(de)(de)拆(chai)卸(xie)和(he)維(wei)(wei)(wei)修步(bu)(bu)驟(zou)。 1.拆(chai)卸(xie)和(he)維(wei)(wei)(wei)修時(shi),請先從泵(beng)(beng)(beng)中排出一些機(ji)油,以(yi)使(shi)油位降到(dao)油窗(chuang)以(yi)下(xia)。 2.拆(chai)開油窗(chuang),拆(chai)下(xia)閥(fa)(fa)(fa)板(ban)(或閥(fa)(fa)(fa)碗,球),檢查它們是(shi)否(fou)(fou)(fou)(fou)完好(hao),平坦(tan),靈活,裝配牢固,合適以(yi)及是(shi)否(fou)(fou)(fou)(fou)有(you)孔。 3.正常情況下(xia),閥(fa)(fa)(fa)板(ban)應平滑地覆蓋通(tong)風孔。 4.大(da)型(xing)泵(beng)(beng)(beng)的(de)(de)(de)(de)閥(fa)(fa)(fa)板(ban)主要(yao)(yao)是(shi)鋼板(ban),并通(tong)過(guo)彈簧(huang)壓(ya)縮。檢查閥(fa)(fa)(fa)板(ban)是(shi)否(fou)(fou)(fou)(fou)損壞,彈簧(huang)是(shi)否(fou)(fou)(fou)(fou)過(guo)硬(ying)以(yi)致于難以(yi)跳動閥(fa)(fa)(fa)板(ban)。 5.對于耐油橡(xiang)膠閥(fa)(fa)(fa),請檢查其是(shi)否(fou)(fou)(fou)(fou)變形。 維(wei)(wei)(wei)修真(zhen)空(kong)泵(beng)(beng)(beng)時(shi),對真(zhen)空(kong)泵(beng)(beng)(beng)的(de)(de)(de)(de)狀(zhuang)態進行監(jian)控,不僅可以(yi)延長真(zhen)空(kong)泵(beng)(beng)(beng)的(de)(de)(de)(de)工作周期,而且可以(yi)適當組(zu)織維(wei)(wei)(wei)護(hu)內容(rong),提(ti)高效(xiao)率,節省(sheng)人工,財力和(he)時(shi)間。這是(shi)最先進的(de)(de)(de)(de)維(wei)(wei)(wei)護(hu)方(fang)法。要(yao)(yao)實施這種維(wei)(wei)(wei)護(hu)方(fang)法,有(you)必要(yao)(yao)建立在及時(shi)有(you)效(xiao)的(de)(de)(de)(de)故障診斷技術的(de)(de)(de)(de)基礎上,對真(zhen)空(kong)泵(beng)(beng)(beng)故障診斷的(de)(de)(de)(de)研究是(shi)對真(zhen)空(kong)泵(beng)(beng)(beng)進行預防性維(wei)(wei)(wei)護(hu)。 拆(chai)卸(xie)和(he)維(wei)(wei)(wei)修真(zhen)空(kong)泵(beng)(beng)(beng)排氣(qi)閥(fa)(fa)(fa)時(shi),請按照(zhao)上述步(bu)(bu)驟(zou)進行拆(chai)卸(xie)和(he)維(wei)(wei)(wei)修,或將(jiang)其送到(dao)專(zhuan)業的(de)(de)(de)(de)真(zhen)空(kong)泵(beng)(beng)(beng)維(wei)(wei)(wei)修工廠進行拆(chai)卸(xie)和(he)維(wei)(wei)(wei)修,但請勿擅自拆(chai)卸(xie)或維(wei)(wei)(wei)修,否(fou)(fou)(fou)(fou)則可能(neng)會損壞設備。
3
2021
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05
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27
隨著干(gan)(gan)(gan)式真(zhen)空(kong)泵(beng)(beng)的利用(yong)(yong)(yong)(yong)(yong)率越來(lai)越普遍(bian),其質量也在(zai)(zai)提高。由于其特性和(he)(he)優(you)勢,它(ta)被每個(ge)人廣泛(fan)使(shi)用(yong)(yong)(yong)(yong)(yong)。為(wei)了讓大家更好地(di)使(shi)用(yong)(yong)(yong)(yong)(yong)它(ta),讓我們一(yi)(yi)起學習干(gan)(gan)(gan)法吧,處理(li)真(zhen)空(kong)泵(beng)(beng)中水量少的方(fang)(fang)法有(you)哪(na)些? 干(gan)(gan)(gan)式真(zhen)空(kong)泵(beng)(beng)的應用(yong)(yong)(yong)(yong)(yong)范圍很廣,有(you)些機組在(zai)(zai)供(gong)水和(he)(he)排水方(fang)(fang)面有(you)更多的應用(yong)(yong)(yong)(yong)(yong)。干(gan)(gan)(gan)式真(zhen)空(kong)泵(beng)(beng)的設計和(he)(he)改(gai)進(jin)(jin)具有(you)節能優(you)勢。一(yi)(yi)般來(lai)說,故障(zhang)率很低,但是(shi)需要定(ding)期(qi)(qi)檢查(cha)和(he)(he)維(wei)護以確保泵(beng)(beng)正常(chang)運行(xing)。干(gan)(gan)(gan)式真(zhen)空(kong)泵(beng)(beng)的正常(chang)故障(zhang)是(shi)找出故障(zhang)原因。建議用(yong)(yong)(yong)(yong)(yong)戶(hu)首先檢查(cha)此(ci)時運行(xing)的泵(beng)(beng)電(dian)流(liu)與正常(chang)運行(xing)的泵(beng)(beng)電(dian)流(liu)之(zhi)間(jian)的差異。如(ru)果(guo)(guo)小于正常(chang)運行(xing)時間(jian),則(ze)(ze)會發(fa)生諸如(ru)葉輪磨損(sun)(sun)(sun)和(he)(he)泵(beng)(beng)頭止回(hui)閥堵塞(sai)的問(wen)題。如(ru)果(guo)(guo)電(dian)流(liu)與通常(chang)一(yi)(yi)樣(yang)大,則(ze)(ze)管接頭,管和(he)(he)泵(beng)(beng)體會泄漏(lou);如(ru)果(guo)(guo)該(gai)電(dian)流(liu)大于正常(chang)運行(xing)期(qi)(qi)間(jian)的電(dian)流(liu),則(ze)(ze)可(ke)(ke)以確定(ding)是(shi)易損(sun)(sun)(sun)部件的磨損(sun)(sun)(sun)。同樣(yang),如(ru)果(guo)(guo)電(dian)纜(lan)損(sun)(sun)(sun)壞,則(ze)(ze)水量將與往常(chang)一(yi)(yi)樣(yang)大,但電(dian)流(liu)會增加。三臺380V電(dian)機的電(dian)流(liu)一(yi)(yi)般為(wei)2.2A,用(yong)(yong)(yong)(yong)(yong)戶(hu)可(ke)(ke)以一(yi)(yi)一(yi)(yi)找出原因,消(xiao)除故障(zhang)。建議用(yong)(yong)(yong)(yong)(yong)戶(hu)對干(gan)(gan)(gan)式真(zhen)空(kong)泵(beng)(beng)進(jin)(jin)行(xing)定(ding)期(qi)(qi)維(wei)護并(bing)保存(cun)記(ji)錄(lu),以便節省(sheng)下(xia)一(yi)(yi)次維(wei)護的基礎并(bing)節省(sheng)維(wei)護時間(jian)。 上面是(shi)關于處理(li)干(gan)(gan)(gan)式真(zhen)空(kong)泵(beng)(beng)水量少的方(fang)(fang)法。您可(ke)(ke)以理(li)解(jie),正確的操作方(fang)(fang)法可(ke)(ke)以在(zai)(zai)使(shi)用(yong)(yong)(yong)(yong)(yong)過程(cheng)中取得良(liang)好的效果(guo)(guo)。
4
2021
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06
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11
水環真空(kong)泵的(de)要(yao)求是(shi)(shi)(shi)(shi)(shi)(shi)不能泄(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)。一旦漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)氣(qi),很容易混(hun)入空(kong)氣(qi)或(huo)其他雜質(zhi),造(zao)成(cheng)真空(kong)度下(xia)降(jiang)。有(you)些地方也是(shi)(shi)(shi)(shi)(shi)(shi)我(wo)們(men)經(jing)(jing)常(chang)檢(jian)(jian)(jian)(jian)查的(de)地方,尤其是(shi)(shi)(shi)(shi)(shi)(shi)一些漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)點(dian),是(shi)(shi)(shi)(shi)(shi)(shi)我(wo)們(men)經(jing)(jing)常(chang)檢(jian)(jian)(jian)(jian)查的(de)地方。我(wo)們(men)應該(gai)如何檢(jian)(jian)(jian)(jian)測(ce)(ce)它的(de)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)點(dian)? 1、小漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)和(he)(he)(he)微漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)的(de)查找 小泄(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)和(he)(he)(he)微泄(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)更難發(fa)現。常(chang)用(yong)(yong)的(de)方法是(shi)(shi)(shi)(shi)(shi)(shi)使用(yong)(yong)水環真空(kong)泵電(dian)離(li)管在丙(bing)(bing)酮或(huo)乙(yi)醇等(deng)高真空(kong)條件下(xia)檢(jian)(jian)(jian)(jian)測(ce)(ce)泄(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)。用(yong)(yong)注射器噴丙(bing)(bing)酮或(huo)用(yong)(yong)乙(yi)醇噴到泄(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)點(dian)時,電(dian)離(li)計(ji)上的(de)指示器會出現明顯(xian)的(de)波動(dong)。一定要(yao)等(deng)到離(li)子計(ji)指示穩定,即(ji)抽氣(qi)量和(he)(he)(he)空(kong)水環泵漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)率平(ping)衡(heng)后,再噴。建議是(shi)(shi)(shi)(shi)(shi)(shi)重復幾次以確認(ren)缺失(shi)的(de)點(dian)。 2、內(nei)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)和(he)(he)(he)外(wai)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)的(de)查找 內(nei)部泄(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)主要(yao)發(fa)生(sheng)在帶水冷(leng)夾套(tao)的(de)水環真空(kong)泵設備中。檢(jian)(jian)(jian)(jian)查外(wai)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)沒有(you)發(fa)現任何疑(yi)(yi)問,但有(you)以下(xia)現象(xiang):機械(xie)泵抽速明顯(xian)偏(pian)低,真空(kong)表值偏(pian)低,機械(xie)泵油液快速乳化。真空(kong)室中的(de)鐵(tie)基零件明顯(xian)腐蝕。如果滿足上述條件,則可(ke)以確定內(nei)部泄(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)。先清洗內(nei)壁,然后再流過冷(leng)卻水,看是(shi)(shi)(shi)(shi)(shi)(shi)否有(you)濕(shi)點(dian),濕(shi)點(dian)是(shi)(shi)(shi)(shi)(shi)(shi)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)水。 3、較(jiao)大(da)的(de)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)點(dian) 對于(yu)較(jiao)大(da)的(de)泄(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou),可(ke)以使用(yong)(yong)火焰法。利用(yong)(yong)氣(qi)流可(ke)以偏(pian)轉火焰的(de)原理,先抽真空(kong)。例如,使用(yong)(yong)蠟燭或(huo)打火機在可(ke)疑(yi)(yi)位置附近逐漸搜(sou)索。您會發(fa)現火焰已經(jing)(jing)轉移到泄(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)處,您可(ke)以找到泄(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)處。 如果您覺得水環真空(kong)泵漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)水,我(wo)們(men)可(ke)以通過檢(jian)(jian)(jian)(jian)測(ce)(ce)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)水來檢(jian)(jian)(jian)(jian)測(ce)(ce)。幫助我(wo)們(men)檢(jian)(jian)(jian)(jian)測(ce)(ce)這些地方是(shi)(shi)(shi)(shi)(shi)(shi)否有(you)任何泄(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)。一旦發(fa)現泄(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou),立即(ji)修(xiu)復泄(xie)(xie)(xie)漏(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)(lou)并安裝密封件。
5
2021
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06
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29
水(shui)(shui)(shui)環(huan)(huan)(huan)(huan)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(簡稱水(shui)(shui)(shui)環(huan)(huan)(huan)(huan)泵(beng))是一(yi)種粗(cu)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng),它(ta)所(suo)能獲得(de)的(de)(de)(de)(de)極限真(zhen)(zhen)(zhen)空(kong)(kong)(kong)為(wei)2000~4000Pa,串(chuan)聯大氣(qi)噴射器可(ke)達270~670Pa。水(shui)(shui)(shui)環(huan)(huan)(huan)(huan)泵(beng)也可(ke)用(yong)(yong)作(zuo)壓(ya)縮(suo)機,稱為(wei)水(shui)(shui)(shui)環(huan)(huan)(huan)(huan)式壓(ya)縮(suo)機,是屬于(yu)(yu)(yu)低壓(ya)的(de)(de)(de)(de)壓(ya)縮(suo)機,其(qi)壓(ya)力(li)范圍為(wei)1~2×105Pa表壓(ya)力(li)。水(shui)(shui)(shui)環(huan)(huan)(huan)(huan)泵(beng)最初用(yong)(yong)作(zuo)自吸(xi)水(shui)(shui)(shui)泵(beng),而(er)后逐漸用(yong)(yong)于(yu)(yu)(yu)石油、化工(gong)、機械、礦山、輕工(gong)、醫藥及食品等許(xu)多(duo)工(gong)業部(bu)門。在(zai)工(gong)業生(sheng)產的(de)(de)(de)(de)許(xu)多(duo)工(gong)藝過(guo)程中(zhong),如真(zhen)(zhen)(zhen)空(kong)(kong)(kong)過(guo)濾、真(zhen)(zhen)(zhen)空(kong)(kong)(kong)引水(shui)(shui)(shui)、真(zhen)(zhen)(zhen)空(kong)(kong)(kong)送料、真(zhen)(zhen)(zhen)空(kong)(kong)(kong)蒸(zheng)發、真(zhen)(zhen)(zhen)空(kong)(kong)(kong)濃縮(suo)、真(zhen)(zhen)(zhen)空(kong)(kong)(kong)回潮和真(zhen)(zhen)(zhen)空(kong)(kong)(kong)脫氣(qi)等,水(shui)(shui)(shui)環(huan)(huan)(huan)(huan)泵(beng)得(de)到廣(guang)泛的(de)(de)(de)(de)應(ying)用(yong)(yong)。 由(you)于(yu)(yu)(yu)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)應(ying)用(yong)(yong)技(ji)術(shu)的(de)(de)(de)(de)飛(fei)躍發展(zhan),水(shui)(shui)(shui)環(huan)(huan)(huan)(huan)泵(beng)在(zai)粗(cu)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)獲得(de)方(fang)面(mian)一(yi)直被(bei)(bei)人(ren)們所(suo)重視。由(you)于(yu)(yu)(yu)水(shui)(shui)(shui)環(huan)(huan)(huan)(huan)泵(beng)中(zhong)氣(qi)體(ti)(ti)壓(ya)縮(suo)是等溫(wen)的(de)(de)(de)(de),故可(ke)抽(chou)除易燃(ran)、易爆的(de)(de)(de)(de)氣(qi)體(ti)(ti),此(ci)外還可(ke)抽(chou)除含(han)塵、含(han)水(shui)(shui)(shui)的(de)(de)(de)(de)氣(qi)體(ti)(ti),因此(ci),水(shui)(shui)(shui)環(huan)(huan)(huan)(huan)泵(beng)應(ying)用(yong)(yong)日益增(zeng)多(duo)。在(zai)泵(beng)體(ti)(ti)中(zhong)裝有(you)適量的(de)(de)(de)(de)水(shui)(shui)(shui)作(zuo)為(wei)工(gong)作(zuo)液。當葉(xie)(xie)輪(lun)(lun)(lun)按順(shun)時(shi)(shi)針方(fang)向旋轉時(shi)(shi),水(shui)(shui)(shui)被(bei)(bei)葉(xie)(xie)輪(lun)(lun)(lun)拋(pao)向四周,由(you)于(yu)(yu)(yu)離心力(li)的(de)(de)(de)(de)作(zuo)用(yong)(yong),水(shui)(shui)(shui)形(xing)(xing)成了一(yi)個決定(ding)于(yu)(yu)(yu)泵(beng)腔(qiang)(qiang)形(xing)(xing)狀的(de)(de)(de)(de)近似于(yu)(yu)(yu)等厚度(du)的(de)(de)(de)(de)封閉圓環(huan)(huan)(huan)(huan)。水(shui)(shui)(shui)環(huan)(huan)(huan)(huan)的(de)(de)(de)(de)下部(bu)分(fen)內(nei)表面(mian)恰好與葉(xie)(xie)輪(lun)(lun)(lun)輪(lun)(lun)(lun)轂相切,水(shui)(shui)(shui)環(huan)(huan)(huan)(huan)的(de)(de)(de)(de)上部(bu)內(nei)表面(mian)剛(gang)好與葉(xie)(xie)片(pian)頂端接觸(實際(ji)上葉(xie)(xie)片(pian)在(zai)水(shui)(shui)(shui)環(huan)(huan)(huan)(huan)內(nei)有(you)一(yi)定(ding)的(de)(de)(de)(de)插入深度(du))。此(ci)時(shi)(shi)葉(xie)(xie)輪(lun)(lun)(lun)輪(lun)(lun)(lun)轂與水(shui)(shui)(shui)環(huan)(huan)(huan)(huan)之間(jian)形(xing)(xing)成一(yi)個月牙形(xing)(xing)空(kong)(kong)(kong)間(jian),而(er)這(zhe)一(yi)空(kong)(kong)(kong)間(jian)又被(bei)(bei)葉(xie)(xie)輪(lun)(lun)(lun)分(fen)成和葉(xie)(xie)片(pian)數(shu)目(mu)相等的(de)(de)(de)(de)若(ruo)干個小(xiao)腔(qiang)(qiang)。 如果以葉(xie)(xie)輪(lun)(lun)(lun)的(de)(de)(de)(de)下部(bu)0°為(wei)起點,那么葉(xie)(xie)輪(lun)(lun)(lun)在(zai)旋轉前180°時(shi)(shi)小(xiao)腔(qiang)(qiang)的(de)(de)(de)(de)容(rong)積由(you)小(xiao)變(bian)大,且與端面(mian)上的(de)(de)(de)(de)吸(xi)氣(qi)口相通,此(ci)時(shi)(shi)氣(qi)體(ti)(ti)被(bei)(bei)吸(xi)入,當吸(xi)氣(qi)終(zhong)了時(shi)(shi)小(xiao)腔(qiang)(qiang)則與吸(xi)氣(qi)口隔絕;當葉(xie)(xie)輪(lun)(lun)(lun)繼續旋轉時(shi)(shi),小(xiao)腔(qiang)(qiang)由(you)大變(bian)小(xiao),使(shi)氣(qi)體(ti)(ti)被(bei)(bei)壓(ya)縮(suo);當...