80CYZ32自吸(xī)油泵配Y7.5KW-52電機流(liu)量13.5m3/h,揚程32米,汽蝕(shi)餘量4米,進出口(kou)徑80,軸功率6.8KW,轉速(sù)2900r/min.    柴油是輕質石(shi)油産品，複雜烴(ting)類(碳原子數約(yue)10～22)混合物。為柴油(yóu)機燃料。主要由(yóu)原油蒸餾、催化(huà)裂化、熱裂化、加(jiā)氫裂化、石油焦(jiāo)化等過程生産(chan)的柴油餾分調(diao)配而成；也可由(you)頁岩油加工和(he)煤液化制取。分(fen)為輕柴油（沸點(diǎn)範圍約180～370℃）和重柴(chai)油（沸點範圍約(yuē)350～410℃）兩大類。廣泛用(yòng)于大型車輛、鐵(tiě)路機車、船艦。

     柴(chái)油最重要用途(tu)是用于車輛、船(chuán)舶的柴油發動(dong)機。與汽油相比(bǐ)，柴油能量密度(du)高，燃油消耗率(lǜ)低，但廢氣中含(hán)有害成分（NO，顆粒(lì)物等）較多。

    由于(yú)柴油機較汽油(yóu)機熱效率高，功(gōng)率大，燃料單耗(hao)低，比較經濟，故(gu)應用日趨廣泛(fan)。它主要作為拖(tuo)拉機、大型汽車(chē)、内燃機車及土(tǔ)建、挖掘機、裝載(zǎi)機、漁船、柴油發(fā)電機組和農用(yong)機械的動力。柴(chai)油是複雜的烴(ting)類混合物，碳原(yuan)子數約為12-07。

    0号柴(chai)油:    主要由原油(you)蒸餾，催化裂化(huà)，加氫裂化，減粘(zhān)裂化，焦化等過(guo)程生産的柴油(yóu)餾分調配而成(cheng)（還需經精制和(he)加入添加劑）。柴(chái)油分為輕柴油(yóu)（沸點範圍約180℃ ～370℃）和(he)重柴油（沸點範(fàn)圍約350℃ ～410℃）兩大類。柴(chai)油使用性能中(zhong)最重要的是着(zhe)火性和流動性(xìng)，其技術指标分(fen)别為十六烷值(zhi)和凝點，我國柴(chai)油現行規格中(zhōng)要求含硫量控(kòng)制在0.5%-1.5%。      柴油按凝(níng)點分級，輕柴油(you)有10、5、0、-10、-20、-35、-50六個牌号，重(zhong)柴油有10、20、30三個牌(pai)号。    一般來講，5#柴(chái)油适合于氣溫(wēn)在8℃以上時使用(yòng)；0# 柴油适用于氣(qì)溫在8℃至4℃時使用(yong)；－10#柴油适用于氣(qì)溫在4℃至－5℃時使用(yòng)；－20#柴油适用于氣(qì)溫在－5℃至－14℃時使用(yòng)；－35#柴油适用于氣(qì)溫在－14℃至－29℃時使用(yòng)；－50#柴油适用于氣(qi)溫在－29℃至－44℃或者低(di)于該溫度時使(shǐ)用。

    物理特性:    熱(rè)值為3.3*10^7J/L;    沸點範圍(wéi)和黏度介于煤(mei)油與潤滑油之(zhi)間的液态石油(yóu)餾分。易燃易揮(huī)發，不溶于水，易(yì)溶于醇和其他(ta)有機溶劑。是組(zǔ)分複雜的混合(hé)物，沸點範圍:十(shí)六烷值;有 180℃ ～370℃ 和 350℃ ～410℃ 兩(liǎng)類。    自吸泵的自(zi)吸高度，與葉輪(lún)前密封間隙、泵(beng)的轉數、分離室(shì)液面高度等因(yin)素有關。葉輪前(qian)密封間隙越小(xiǎo)，自吸高度越大(dà)，一般取為0.3~0.5毫米(mi)；在間隙增大時(shi)，除自吸高度下(xià)降外，泵的揚程(cheng)、效率均降低。泵(bèng)的自吸高度随(sui)葉輪的圓周速(su)度u2的增大而增(zēng)大，但到最大自(zì)吸高度時，轉數(shu)增加而自吸高(gāo)度就不再增加(jiā)了，此時隻是縮(suō)短自吸時間；當(dāng)轉數下降時，自(zi)吸高度則随着(zhe)下降。在其它條(tiao)件不變的情況(kuàng)下，自吸高度還(hai)随着儲水高度(dù)的增加而增加(jiā)（但也不能超過(guò)分離室的最佳(jia)儲水高度）。為了(le)在自吸泵中更(geng)好地使氣水混(hùn)合，葉輪的葉片(pian)須少些，使葉栅(shān)的節距增大；并(bìng)宜采用半開式(shi)葉輪（或葉輪槽(cáo)道較寬的葉輪(lun)），這樣更方便于(yú)回水深入地射(she)進葉輪葉栅中(zhong)。

自吸泵大部分(fèn)與内燃機配套(tao)，裝在可移動的(de)小車上，宜于野(yě)外作業。Self-priming pump self-priming height, and before the impeller seal clearance, the revolutions of the pump, separation chamber level and other factors.Before the impeller seal gap is smaller, the greater the self-priming height, general take 0.3 ~ 0.5 mm;Increase in clearance, in addition to the self-priming height decreased, pump lift and efficiency are reduced.The self-priming pump

    自吸油(yóu)泵的使用及維(wéi)護The use and maintenance of self-priming pump

    1 啟動前的準(zhǔn)備及檢查事項(xiàng)1 to start preparing and check the item before

    1.1 檢查軸承體油(you)腔中潤滑油是(shì)否已達到規定(ding)要求，潤滑油的(de)油位應保持在(zai)機油尺的兩刻(ke)線之間或油标(biao)中線位置,不得(dé)過多或不足.1.1 check whether oil bearing body cavity, the lubricating oil has reached the specified requirements, the lubricating oil in the oil level should be kept in the oil foot or oil standard midline position between two scribed line, not too much or not.

    1.2 檢(jian)查泵體内的儲(chu)液是否高于葉(ye)輪邊緣.如若不(bu)足,可以從泵體(ti)上的加液口直(zhí)接向泵體内注(zhù)入儲液,不應在(zai)儲液不足的情(qing)況下啟動運轉(zhuǎn),否則泵體不能(néng)正常工作,且易(yi)損壞機械密封(feng).1.2 check reservoir is higher than that of the impeller in the pump body. If not, can add liquid mouth from the pump body directly to the pump body into the reservoir, the defects in the reservoir should not start operation, under the condition of pump body can not work normally, and easy to damage the mechanical seal.

    1.3 檢查泵轉動部(bu)件是否有卡住(zhù)磕碰現象.1.3 check the pump rotating components for stuck knock against.

    1.4 檢查(cha)泵體底腳及各(gè)連接處有無松(song)動現象.1.4 check the pump body foot and joint have loose phenomenon.

    1.5 檢查泵(bèng)軸與原動機主(zhǔ)軸的同軸度與(yu)平衡度.1.5 check the pump shaft and prime mover of main shaft alignment and balance.

    1.6 檢查進(jìn)口管路是否漏(lòu)氣1.6 check whether import pipeline leak

    1.7 打開吸入管(guan)道的閥門(注意(yi)不要全開)1.7 open the suction piping valves (be careful not to open)

    2 啟動(dòng)及操作2 start-up and operation

    2.1 啟動油(you)泵,注意泵軸的(de)轉向是否正确(què)2.1 start the oil pump, pay attention to the steering pump shaft is correct

    2.2 注意轉動時有(you)無異常噪音和(he)振動2.2 notice there is no abnormal noise and vibration

    2.3 注意真空(kong)表讀數,啟動後(hòu)當壓力表及真(zhen)空表的讀數經(jīng)過一段時間的(de)波動而時針穩(wěn)定後,說明泵内(nèi)已經上液,油泵(bèng)竟如正常工作(zuò)狀體.2.3 pay attention to the vacuum meter reading, starts when the pressure gauge and vacuum gauge readings over a period of time after hour due to the variation of stable, explain within the pump has been on fluid, oil pump body become like a normal job.

    2.4 在泵進入(rù)正常輸油作業(yè)前,應特别注意(yì)泵内油溫升高(gāo)情況,如果這個(ge)過程長,泵内油(you)溫過高,則應停(ting)泵檢查原因.2.4 before the pump into the normal oil operation, should pay special attention to pump the high oil temperature rise, if the process is long, inside the pump oil temperature is too high, you should stop the pump to check.

    2.5 如(ru)果泵内溫度過(guo)高而引起自吸(xi)困難.可暫時停(ting)機,利用出口管(guǎn)路中的液體倒(dǎo)流或直接向泵(bèng)内補充液體,使(shi)泵内液體降溫(wen),即可啟動.2.5 if the high temperature caused by self-priming pump difficult. Can temporarily stop, using the export pipeline fluid replacement in the liquid backflow or directly to the pump, cooling the liquid in the pump, can be started.

    2.6 泵在(zài)工作過程中因(yīn)故停泵,需在啟(qi)動時,把出口控(kòng)制閥稍開.這樣(yàng)既有利于自吸(xi)過程中其他從(cong)吐出口排出,又(you)能保證泵在較(jiào)輕的負荷下啟(qi)動.2.6 pump in the process of work for pump stopped, at startup, the export control valve slightly open. This is beneficial to both other exported from spitting out during the process of imbibition, and can guarantee the pump starts under a lighter load.

    2.7 泵每工作15-20小(xiao)時或每次使用(yòng)前應檢查并及(ji)時補充一次10号(hào)機械油.2.7 pump every 15 to 20 hours or every time before the use should check and added a number 10 machine oil in time.

    3 停車

    3.1 關(guān)閉吐出管路上(shang)的閘閥

    3.2 使泵停(ting)止轉動

    4 易損件(jiàn)的維護

    4.1 滾動軸(zhóu)承:當油泵長期(qi)運動後,油泵磨(mó)損到一定程度(du)必須更換

    4.2 前後(hòu)密封環:當密封(fēng)環磨損到一定(ding)程度時,須進行(háng)更換

    4.3 機械密封(feng):在不漏油的情(qíng)況下,一般不應(ying)拆開檢查,若軸(zhóu)承體下端洩漏(lou)口處産生嚴重(zhòng)洩露時,則應對(duì)機械密封進行(háng)拆檢.裝拆機械(xie)密封時,必須輕(qīng)取輕放,注意配(pei)合面的清潔,不(bu)好好動、靜環表(biǎo)面的光潔度，嚴(yan)禁敲擊碰撞。