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80CYZ32自吸油泵配(pèi)Y7.5KW-2電機作柴油輸送泵銅葉輪 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
發布時間:2014-12-27 8:49:57 點擊次數: | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
80CYZ32自吸油泵(bèng)配Y7.5KW-52電機流量(liàng)13.5m3/h,揚程32米,汽蝕餘量4米(mǐ),進出口徑(jìng)80,軸(zhóu)功率6.8KW,轉速2900r/min. 柴油是輕質石油産品,複雜烴類(碳原子數約10~22)混(hùn)合(hé)物。為柴油機燃料。主要(yào)由原油蒸餾、催化裂化、熱裂化、加氫(qīng)裂化、石油焦化等過程生産的(de)柴(chái)油餾分調配而成(chéng);也可由頁岩油(yóu)加工和煤液化制取。分為輕柴油(沸(fèi)點範圍約180~370℃)和重柴(chái)油(沸點(diǎn)範圍(wéi)約350~410℃)兩大類。廣泛用于大型車輛、鐵路機車(chē)、船艦。 柴油(yóu)最重要用途是用于車輛、船舶的柴油發動機。與(yǔ)汽(qì)油相比,柴油能量密度高,燃油(yóu)消耗率低,但廢(fèi)氣中含有害成(chéng)分(fèn)(NO,顆(kē)粒(lì)物等)較多。 由于柴油機較汽油機熱效率高,功(gōng)率(lǜ)大,燃料單耗低,比較經濟,故應用(yòng)日趨廣泛。它主要作(zuò)為(wéi)拖拉機、大型汽車、内(nèi)燃(rán)機車及土(tǔ)建、挖掘機、裝載機(jī)、漁船(chuán)、柴油發電機組和農用(yòng)機械的動力。柴油是複(fú)雜的烴類混合(hé)物,碳原子數約為10-22。 0号柴油: 主(zhǔ)要由原油蒸餾,催化裂化,加氫裂化,減粘裂化,焦化等過程生産的(de)柴油(yóu)餾分調配而(ér)成(還需經精制和(hé)加入添加劑)。柴油(yóu)分為輕柴油(沸點範(fàn)圍約180℃ ~370℃)和重柴油(yóu)(沸點範圍約350℃ ~410℃)兩(liǎng)大類(lèi)。柴油使用(yòng)性能中最重要的是着火性和流動性,其技術指标分别為十六烷值(zhí)和凝點(diǎn),我國柴油現行規格中要求含硫量控(kòng)制在0.5%-1.5%。 柴(chái)油按凝點分級,輕柴油有10、5、0、-10、-20、-35、-50六個牌号,重柴油有10、20、30三個牌号。 一般來講(jiǎng),5#柴油适合(hé)于(yú)氣溫在8℃以上時使用;0# 柴油适用于氣溫在8℃至4℃時使用;-10#柴油适(shì)用于氣溫在4℃至-5℃時使用;-20#柴油适(shì)用于氣溫在-5℃至-14℃時使用;-35#柴油(yóu)适用于氣溫在-14℃至-29℃時使用;-50#柴油适用于(yú)氣溫在-29℃至-44℃或者低(dī)于該溫度時使用。 物理特性: 熱值為3.3*10^7J/L; 沸點範圍和黏度介于煤(méi)油與潤滑油之間的液态石油餾分。易燃易揮發,不溶于水,易溶于醇(chún)和其他有機溶劑。是組分複雜的混合物,沸點範圍:十六(liù)烷值;有 180℃ ~370℃ 和 350℃ ~410℃ 兩類。 自吸泵的(de)自吸高(gāo)度,與葉輪前密封(fēng)間隙、泵的轉數、分離室液面高度等因素有關。葉輪前密封間隙越小,自吸高度越大,一般取為0.3~0.5毫米(mǐ);在間隙(xì)增大時,除自吸高度下降外,泵的揚程、效率均降(jiàng)低。泵的自吸(xī)高度随葉輪的(de)圓周速度u2的增大而增大,但到最大自吸高度(dù)時,轉數增加而自吸(xī)高度就不再增加了,此(cǐ)時隻是縮短自吸時間;當轉數下降時,自吸高度則随着下(xià)降。在其(qí)它(tā)條件不變的情況下,自吸高度還(hái)随着儲(chǔ)水高度的(de)增加而增加(但也不能超過分離室(shì)的最佳(jiā)儲(chǔ)水高度)。為了在自吸泵中(zhōng)更好地使氣水混(hùn)合,葉輪的葉片須(xū)少些,使葉栅的節(jiē)距增大;并宜采用半(bàn)開式葉輪(或葉(yè)輪槽(cáo)道較寬(kuān)的葉輪),這(zhè)樣更方便于回水深入地射(shè)進(jìn)葉輪葉栅中。 自吸泵大部分與内燃機配套,裝在可移(yí)動的小車上,宜于(yú)野外作業。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 自吸油泵的使(shǐ)用及維護The use and maintenance of self-priming pump 1 啟(qǐ)動前的準備及檢查事項1 to start preparing and check the item before 1.1 檢查軸承體油腔中潤滑油是否已達到規定要求,潤滑油的(de)油位應保持在機油尺的兩刻線之間或油标中(zhōng)線位置,不得過多或(huò)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 檢查泵體内的(de)儲液是否(fǒu)高于葉(yè)輪邊緣.如若不足,可以(yǐ)從泵體(tǐ)上的加液口直接向泵體内(nèi)注入儲液,不應在儲液不(bú)足的(de)情況下啟動運轉,否則泵(bèng)體不能正(zhèng)常工作,且易損壞(huài)機械密封.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(bèng)轉動部件是否(fǒu)有卡住磕(kē)碰現象.1.3 check the pump rotating components for stuck knock against. 1.4 檢查泵體底腳及各連接處有無(wú)松動現象.1.4 check the pump body foot and joint have loose phenomenon. 1.5 檢查泵軸與原動機(jī)主軸的同軸度與平衡度.1.5 check the pump shaft and prime mover of main shaft alignment and balance. 1.6 檢查進口管路是否漏氣1.6 check whether import pipeline leak 1.7 打開吸入管道的閥(fá)門(注意不要全開)1.7 open the suction piping valves (be careful not to open) 2 啟動及操作2 start-up and operation 2.1 啟動油泵,注意(yì)泵軸的轉向是(shì)否正(zhèng)确2.1 start the oil pump, pay attention to the steering pump shaft is correct 2.2 注意轉動時有無異常噪音和振動2.2 notice there is no abnormal noise and vibration 2.3 注意真空表讀數,啟動後當壓力表及真空表的(de)讀數經過一段時(shí)間的波動而時針(zhēn)穩定後,說明泵(bèng)内已經上(shàng)液,油泵竟(jìng)如(rú)正常工作狀體.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(zài)泵進入正常輸油作業前,應特别注意(yì)泵内油(yóu)溫升高情況,如(rú)果這個過程(chéng)長,泵内油(yóu)溫(wēn)過高,則應停泵(bèng)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 如果泵内(nèi)溫度過高而引起自吸困難.可暫時停機,利用出口管路中的液體倒流或直(zhí)接向泵内補充液體,使泵内液(yè)體降溫,即可啟(qǐ)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 泵在工作過程中(zhōng)因故停泵,需在啟動時,把出口控制閥稍開.這樣(yàng)既有利于自吸過程中(zhōng)其他從吐出口排出,又能保證(zhèng)泵在較輕的負荷下啟動.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小時或每次使用前應檢查并及時補充一次10号機械油.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(chū)管路上的閘閥(fá) 3.2 使泵停止轉動 4 易損件(jiàn)的維護 4.1 滾動軸承:當油泵長期運動後,油泵磨損到一(yī)定程度必須更換 4.2 前後密封環:當密封環磨損(sǔn)到一定程度時,須進行更換 4.3 機械密封:在不漏(lòu)油的情況下,一(yī)般不應拆開檢查,若軸承體下端洩漏口處産生嚴重洩(xiè)露時,則應對機械(xiè)密封進(jìn)行拆檢.裝(zhuāng)拆機械密(mì)封時,必(bì)須輕取輕放,注意配合面的清潔,不好好動、靜環表面的光潔度,嚴禁敲擊碰撞。
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