●3G三螺杆泵輸(shu)送各種油類(lèi)時應注意事(shì)項：When conveying various oil matters should be paid attention to:

    1、輸送40~150mm2/s的油(you)類最合适，允(yǔn)許按泵的最(zuì)高工作壓力(li)使用。2、輸送40mm2/s以(yǐ)下的油類，為(wéi)保證泵的流(liu)量及壽命應(yīng)降壓使用。3、輸(shū)送150mm2/s以上的油(yóu)類，且進油管(guan)道過長，彎頭(tou)過多，泵工作(zuo)時♍如産生噪(zào)音或振動現(xian)象，則應考慮(lǜ)更換低一級(ji)轉速的電機(ji)運轉🈚或縮短(duan)吸入管道，減(jian)少彎頭。1, delivery was 40 ~ 150 / s best oils, permitted to use according to the maximum working pressure of pump.2, transmission oil, under 40 was/s in order to ensure the pump flow and life should be used antihypertensive.3, transmission of more than 150 was/s oils, and the oil inlet pipe is too long, too much bend, such as noise or vibration phenomenon when the pump work, should consider to replace the low level of rotational speed of motor operation or shorten the suction pipe, reducing elbow.

 ●3G型三(sān)螺杆泵安裝(zhuang)要求:3 g type three-screw pump installation requirements:

    1、安裝前(qián)應檢查泵的(de)油封是否良(liáng)好，并檢查泵(bèng)在運輸中💯是(shi)否損壞，可用(yòng)手轉動聯軸(zhou)器是否有卡(kǎ)勁現象，如有(you)則應拆⛱️泵進(jin)行清洗，修理(li)和校正。1, before installation should check whether the oil seal of the pump is good, and check the pump is damaged in transportation, turn the coupling usable hand card trouble phenomenon, if there is any should tear open pump for cleaning, repair and calibration.2、安裝(zhuāng)泵的進油和(he)排油管道時(shí)，其管徑不得(de)小于泵㊙️的進(jìn)🙇🏻油和🔞出油口(kǒu)口徑，進油管(guǎn)道不得過長(zhǎng)，彎頭不♍得過(guo)多，否則将影(yǐng)響❓泵的工作(zuò)狀态。2, installation of pump suction and discharge of oil pipe, the pipe diameter shall not be less than the oil inlet of the pump and the oil outlet diameter, inlet pipe shall not be too long, elbow shall not too much, otherwise will affect the pump working condition.3、當有兩(liǎng)台以上的泵(beng)安裝在同一(yi)條主管線上(shàng)，為便于泵的(de)啟動，在近泵(bèng)的排油管上(shang)必須安裝逆(nì)止閥。3, when more than two head of pump installed in the same line, to facilitate pump start-up, in close to the oil drain pump must be installed on a non-return valve.4、對于在(zai)較高溫度（指(zhǐ)60℃以上）下輸送(sòng)粘度大的油(yóu)類（如：重油）的(de)備用泵，必須(xū)是熱備用泵(bèng)，否則泵在低(dī)溫下啟動會(hui)造成電機過(guò)載或泵損壞(huai)。（建議在靠近(jìn)泵的排油管(guan)上的逆止閥(fa)旁，并聯安裝(zhuāng)一個小回流(liu)閥，對備用泵(beng)可微啟回流(liu)閥，使泵緩慢(màn)逆轉，其逆轉(zhuǎn)速≤100轉/分，使部(bù)分熱油經常(cháng)流過泵内，達(dá)到泵熱備用(yong)目的）。4, for under high temperature (above 60 ℃) conveying the viscosity of oil (such as: heavy oil) of the standby pump, it must be hot standby pump, otherwise the pump at low temperature can cause the damage of motor overload or pump.(suggest near the exhaust non-return valve on the tubing pump, a small return valve installed in parallel, differentiable and the backflow preventer to standby pump, the pump slow reversal, the reverse speed 100 r/min or less, often make some hot oil flows through the pump, to pump hot standby purposes).5、輸送介(jiè)質内含有機(ji)械雜質。将嚴(yán)重影響泵的(de)運轉❄️和降🈲低(dī)使用壽命，因(yīn)此在泵安裝(zhuāng)前，必須仔細(xi)清除進油管(guan)内的焊渣，沙(sha)粒等雜質，并(bing)應在進油管(guǎn)道靠近泵處(chu)安裝濾器，濾(lǜ)器網孔大小(xiao)，可根據工作(zuo)情況及介質(zhì)粘度确定。（一(yī)般可用40~80目網(wang)），過濾面積一(yi)般不得小于(yu)進油管橫截(jie)面積的20倍。5, mechanical impurity is contained within the transmission medium.Will seriously affect the operation and reduce the service life of pump, so before the pump installation, must be carefully clean up the feed tube welding slag, impurities such as grains of sand, and shall be installed in the inlet pipe near the pump filter, filter mesh size, is decided according to the working condition and medium viscosity.Available (40 ~ 80 mesh net), filter area generally shall not be less than 20 times into the cross-sectional area of the tubing 6、盡(jìn)量在泵進油(you)和排油口處(chu)的螺紋孔上(shàng)連接壓力表(biao)和真空表，以(yǐ)便于觀察泵(beng)的運轉狀态(tài)。6, as far as possible in the pump suction and discharge of oil on the threaded hole mouth connect pressure gauge and vacuum gauge, in order to observe the pump running state.7、原動機與泵(beng)的轉軸必須(xū)在同一中心(xin)線上，可用直(zhí)尺測隙規🔱在(zài)聯軸器圓周(zhou)上間隔90°處檢(jian)查。8、原動機與(yu)泵的轉向必(bi)須一緻，嚴格(gé)禁止原動機(jī)驅動泵逆轉(zhuǎn)。電機接線時(shí)，應先脫開電(diàn)機與泵的聯(lián)軸器，對電機(ji)✌️作試🈲運轉。使(shǐ)其轉向與泵(beng)的轉向标志(zhì)一緻。7, prime mover and the pump shaft must be in the same center line, available ruler feeler gauge in the coupling of the circumference of a circle by 90 ° in check.8, steering engine and pump must be consistent, strictly prohibited prime motor driven pump reversal.Electrical wiring, should first release coupling of motor and pump, a test run on the motor.The steering pump and steering sign agreement.

●3G型三(sān)螺杆泵的使(shi)用

　　1、泵啟動前(qián)，必須全開進(jìn)油和排油閘(zhá)閥。The use of 3 g type three-screw pump 1, before starting the pump, oil inlet must be fully open and oil discharge gate valve.2、首次啟動(dong)泵或再次使(shǐ)用長期封存(cún)的泵時，泵内(nèi)無介質，應在(zài)泵🐉的進油腔(qiang)灌注适量輸(shu)送介質，避免(mian)泵幹啟動。2, start the pump for the first time or again for a long time use of the pump, the pump inside without medium, should be in the inlet of the pump cavity perfusion amount transfer medium, avoid dry start pump 3、泵(bèng)啟動後，應密(mi)切注意電流(liu)表，壓力表和(he)真空表的數(shù)值☀️，超出規定(dìng)值時，應停泵(beng)找出原因後(hou)，再行啟動。3, the pump starts, should pay close attention to current meter, pressure gauge and vacuum gauge value, beyond the specified value, should stop pump after find out, start again.4、軸(zhou)封處點滴洩(xiè)露，應屬正常(cháng)現象，當洩露(lù)量大量增加(jia)時，對軟填料(liao)密封應壓緊(jin)填料壓蓋，對(duì)機械密封應(ying)停泵修複後(hòu)，再行啟動。4, shaft sealing drip leakage, should belong to the normal phenomenon, when the leak amount of increase, the soft packing seal should be compression packing gland, to pump mechanical seal shall be shutdown after repair, start again.5、用(yòng)高溫蒸汽清(qing)掃管線時，應(yīng)避免高溫蒸(zheng)汽通過泵内(nèi)。5, with high temperature steam cleaning pipeline, should avoid high temperature steam through the pump.6、如果泵長期(qi)不工作時，應(ying)進行油封，并(bìng)定期檢查油(yóu)封🧡情況✉️，必要(yào)時重新油封(fēng)。6, if the pump is not working for a long time, should carry on the oil seal, and regularly check oil seal, oil seal again if necessary.

●三螺杆泵特(te)點及優點：

　　（1）壓(ya)力和流量範(fan)圍寬闊，流量(liang)範圍0.2～320m3/h最高工(gong)作壓力可達(dá)5MPa；（2）運送液體的(de)種類和粘度(dù)範圍寬廣,粘(zhan)度範圍1mm2/s-760mm2/s；（3）因為(wei)三螺杆泵内(nèi)的回轉部件(jian)慣性力較低(di)，故可使用很(hěn)高的轉速；（4）吸(xi)入性能好，具(ju)有很強的自(zì)吸能力；（5）流量(liàng)均勻連續，振(zhen)動小，噪音低(dī)，幾乎沒有脈(mo)動；（6）三螺杆泵(beng)結構堅實，安(ān)裝方便有(卧(wo)式、立式、法蘭(lán)式、插裝式）保(bao)養容易；（7）三螺(luo)杆泵具有很(hen)強的耐熱性(xing)，一般工作溫(wen)度是（1~250°C)超過此(cǐ)溫度需特制(zhì)；（8）根據所輸送(song)介質需要還(hái)可提供加熱(rè)或冷卻結構(gou)🧑🏾‍🤝‍🧑🏼；（9）三螺杆泵幾(ji)乎沒有磨損(sǔn)，三螺杆泵隻(zhi)要選型正确(què)，使用壽命長(zhang)。（10）三螺杆泵的(de)工作效率高(gao)。

●三螺杆泵注(zhu)意事項

    1.三螺(luó)杆泵的轉速(su)選用:三螺杆(gǎn)泵的流量與(yǔ)轉速成線性(xìng)關系,相對于(yu)低轉速的螺(luó)杆泵,高轉速(su)的螺杆泵雖(suī)然能增加了(le)流量和揚程(chéng),但功率明顯(xiǎn)增大,高轉速(su)加速了轉子(zǐ)與定子間的(de)磨耗,必定使(shǐ)螺杆泵過早(zǎo)失效,而且高(gāo)轉速螺杆泵(beng)的定轉子長(zhǎng)度很短,極易(yì)磨損,因而縮(suō)短了螺杆泵(bèng)的使用壽命(mìng)。通過減速機(jī)或無⛷️級調速(su)機構來降低(di)轉速,使勘轉(zhuǎn)速保持在每(mei)分三百轉以(yi)下較為合理(lǐ)的範圍内,與(yǔ)高速運轉的(de)螺杆泵相比(bi),使用壽命能(néng)延長幾倍。

    2.螺(luó)杆泵的品質(zhì):現在市場上(shàng)的螺杆泵的(de)種類較多,相(xiang)對而言,進口(kou)的螺杆泵設(shè)計合理,材質(zhi)精良,但價格(gé)較高,服務方(fang)面有的不到(dao)位,配件價格(gé)高,訂貨周期(qi)長,可能影響(xiang)生産的正常(cháng)運行。國内生(shēng)産的大都仿(páng)制💛進口産品(pǐn),産品質量良(liang)莠不齊,在選(xuan)用國内生産(chan)的産品時,在(zài)考慮其性價(jia)比的時候,選(xuan)用低轉速,長(zhǎng)導程,傳動量(liang)部件材質優(you)良,額定壽命(ming)長的産品。

    3.确(que)保雜物不進(jìn)入泵體:濕污(wū)泥中混入的(de)固體雜物會(huì)對螺杆泵的(de)橡膠材質定(ding)子造成損壞(huài),所以确保雜(zá)物不進入泵(bèng)的腔體是很(hen)重要的,很多(duo)污水廠在泵(beng)前加裝了粉(fen)碎機,也有的(de)安裝格栅裝(zhuāng)置或濾網,阻(zu)擋雜物進入(rù)螺杆泵,對于(yu)格栅應及時(shí)清撈以免造(zào)成堵塞。

    4.保持(chi)恒定的出口(kou)壓力:螺杆泵(bèng)是一種容積(ji)式回轉泵,當(dāng)出口端受阻(zu)以後,壓力會(hui)逐漸升高,以(yǐ)至于超過預(yù)定的壓力值(zhi).此時電機負(fù)荷急劇增加(jia).傳動機械相(xiang)關零件的負(fù)載也會超出(chu)設計值,嚴重(zhong)時會發生電(diàn)機燒毀,傳動(dòng)零件斷裂.為(wéi)了避免螺杆(gǎn)泵損壞,一般(ban)會在三螺杆(gǎn)泵出口處安(ān)裝旁通溢流(liu)閥,用以穩定(dìng)出口壓力,保(bǎo)持泵的正常(chang)運轉。

    5.避免斷(duan)料:三螺杆泵(beng)決不允許在(zài)斷料的情形(xing)下運轉,一經(jīng)發生,橡膠定(dìng)子由于幹磨(mo)擦,瞬間産生(shēng)高溫而燒壞(huai),所以,粉碎機(jī)完好,格栅暢(chang)通是螺杆泵(beng)正常運轉的(de)必要條件之(zhī)一,為此,有些(xiē)螺杆泵還在(zai)泵身上安裝(zhuāng)了斷料停機(jī)裝置,當發生(shēng)斷料時,由于(yu)螺杆泵其有(you)自吸功能的(de)特性,腔體内(nei)會産生真空(kong),真空裝置會(huì)使螺杆泵停(tíng)止運轉。

●螺杆(gan)磨損五點原(yuan)因:

    1、每種塑料(liao)，都有一個理(li)想塑化的加(jia)工溫度範圍(wéi)，應該🌈控制料(liào)筒🔅加工溫度(dù)，使之接近這(zhe)個溫度範圍(wei)。粒🛀🏻狀塑料從(cóng)料鬥進入料(liào)筒，首先會到(dào)達加料段，在(zài)加料段必然(rán)會出現幹性(xìng)磨擦，當這些(xiē)塑料受熱不(bu)足，熔融不均(jun)時，很易造⭕成(chéng)料筒内壁及(jí)螺杆♻️表面磨(mo)損🌏增大。同樣(yang)，在🐪壓縮段和(hé)均👨‍❤️‍👨化段，如果(guo)塑🤞料的熔融(rong)狀态紊亂不(bu)均🚶，也會造成(cheng)磨損增快。

    2、轉(zhuǎn)速應調校得(de)當。由于部分(fèn)塑料加有強(qiáng)化劑，如玻璃(lí)🍉纖✉️維、礦⚽物質(zhi)或其他填充(chong)料。這些物質(zhi)對金屬材質(zhì)的磨擦👨‍❤️‍👨力往(wǎng)往比🔞熔融塑(sù)料的大得多(duō)。在注塑這些(xie)塑料時，如果(guǒ)用高的轉速(su)成，則在提高(gao)對塑料的🐪剪(jiǎn)切力的同時(shi)，亦将令強化(huà)相應地産生(sheng)更多被撕✉️碎(suì)的纖維，被撕(sī)碎的纖維含(han)有鋒利末端(duan)，令磨損力大(dà)為增加。無🔅機(ji)礦物質在金(jīn)屬表面高速(su)滑行時，其刮(guā)削作用♻️也不(bu)小💰。所以轉速(sù)不宜調得太(tài)高。

    3、螺杆在機(jī)筒内轉動，物(wu)料與二者的(de)摩擦，使螺杆(gǎn)與機筒的工(gōng)作‼️表面逐漸(jian)磨損：螺杆直(zhí)徑逐漸縮小(xiǎo)，機筒的内孔(kong)直徑逐漸加(jia)大☔。這樣，螺杆(gan)與機筒的配(pèi)合🔞直徑間💁隙(xì)，随着二者的(de)逐漸磨損而(ér)一👈點點加大(da)。可是，由于機(ji)筒前面機頭(tóu)和分流闆的(de)阻力沒有改(gai)變，這就增加(jia)了被擠塑物(wù)料❌前進時的(de)漏流量，即物(wù)料從直徑間(jiān)隙處向進料(liao)方向流✉️動量(liang)增加。結果使(shi)塑膠機械生(sheng)産量下降。這(zhe)種現象又使(shǐ)物料在機筒(tǒng)内停留時間(jian)增加，造成物(wu)料分解。如果(guo)是聚乙烯，分(fen)解産生的氯(lǜ)化氫氣體加(jia)⁉️強了對螺杆(gǎn)和機筒的腐(fu)蝕。

    4、 物料中如(ru)有碳酸鈣和(hé)玻璃纖維等(děng)填充料，能加(jiā)快螺杆和機(jī)🧑🏾‍🤝‍🧑🏼筒的磨損。

    5、 由(yóu)于物料沒有(yǒu)塑化均勻，或(huo)是有金屬異(yì)物混入料中(zhōng)，使螺🌈杆轉☁️動(dong)扭矩力突然(rán)增加，這種扭(niǔ)矩超出螺杆(gan)的強度極限(xian)，使螺杆扭斷(duàn)。這是一種非(fei)常規事故損(sǔn)壞。