●3G三(sān)螺杆泵(bèng)輸送各(gè)種油類(lei)時應注(zhù)意事項(xiàng)：When conveying various oil matters should be paid attention to:

    1、輸送40~150mm2/s的(de)油類最(zuì)合适，允(yun)許按泵(beng)的最高(gāo)工作壓(ya)力使用(yòng)。2、輸送40mm2/s以(yi)下的油(yóu)類，為保(bǎo)證泵的(de)流量及(jí)壽命應(ying)降壓使(shi)用。3、輸送(sòng)150mm2/s以上的(de)油類，且(qie)進油管(guǎn)道過長(zhang)，彎頭過(guo)多，泵工(gōng)作時❌如(rú)産生🌈噪(zao)音或振(zhen)動現象(xiàng)，則應考(kao)慮更換(huàn)低一級(jí)轉速的(de)電機運(yùn)轉或縮(suō)短吸入(ru)管道，減(jian)少彎頭(tóu)。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型三螺(luo)杆泵安(an)裝要求(qiú):3 g type three-screw pump installation requirements:

    1、安裝前(qian)應檢查(chá)泵的油(yóu)封是否(fǒu)良好，并(bing)檢查泵(beng)在運輸(shū)中🔱是否(fǒu)損壞，可(ke)用手轉(zhuǎn)動聯軸(zhou)器是否(fou)有卡勁(jin)現象，如(ru)有則應(ying)拆泵進(jìn)🈲行清洗(xǐ)，修理和(he)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(an)裝泵的(de)進油和(he)排油管(guǎn)道時，其(qi)管徑不(bú)得小于(yú)泵的🌈進(jìn)油和出(chū)♻️油口口(kou)徑，進油(you)管道不(bu)得過長(zhang)，彎頭不(bu)得過多(duo)，否則将(jiāng)影響泵(bèng)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(dāng)有兩台(tai)以上的(de)泵安裝(zhuāng)在同一(yī)條主管(guan)線上，為(wéi)便于泵(bèng)💛的啟動(dong)，在近泵(bèng)的排油(you)管上必(bi)須安裝(zhuang)逆止閥(fá)。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(wēn)度（指60℃以(yǐ)上）下輸(shū)送粘度(dù)大的油(you)類（如：重(zhòng)油）的備(bèi)用泵，必(bì)須是熱(re)備用泵(beng)，否則泵(bèng)在低溫(wēn)下啟動(dong)會造成(chéng)電機過(guò)💁載或泵(bèng)損壞。（建(jian)議在靠(kao)近泵的(de)排油管(guan)上的逆(ni)止閥旁(pang)，并聯安(ān)裝一個(ge)小回流(liu)閥，對備(bèi)用泵可(ke)微啟回(hui)流㊙️閥，使(shi)泵緩✉️慢(màn)逆轉，其(qí)逆轉速(sù)≤100轉/分，使(shi)部分熱(rè)油經常(chang)流過泵(bèng)内，達到(dao)泵熱備(bèi)用目的(de)）。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(jie)質内含(han)有機械(xiè)雜質。将(jiang)嚴重影(ying)響泵的(de)運轉和(he)降低使(shi)用壽命(mìng)，因此在(zai)泵安裝(zhuang)前，必須(xū)仔細清(qing)除進油(yóu)管内♍的(de)焊渣，沙(sha)粒等雜(za)質，并應(ying)在進油(yóu)管道靠(kao)近泵處(chù)💃安裝濾(lü)器，濾器(qi)網孔大(dà)💃小，可根(gēn)據工作(zuo)情況及(ji)介質粘(zhān)度确定(dìng)。（一般可(ke)用40~80目網(wang)），過濾面(miàn)積一般(bān)不得小(xiǎo)于進油(you)管橫截(jie)面積的(de)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、盡量(liang)在泵進(jin)油和排(pai)油口處(chu)的螺紋(wén)孔上連(lián)接壓力(li)表和真(zhen)空表，以(yi)便于觀(guān)察泵的(de)運轉狀(zhuàng)态。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(dòng)機與泵(beng)的轉軸(zhóu)必須在(zai)同一中(zhōng)心線上(shang)，可用直(zhi)尺測隙(xì)📧規在聯(lián)軸器圓(yuan)周上間(jian)隔90°處檢(jian)查。8、原動(dong)機與泵(bèng)的轉向(xiang)必須一(yi)緻，嚴格(ge)禁止原(yuán)動機驅(qū)動泵逆(nì)轉☎️。電機(ji)接線時(shi)，應先脫(tuō)開電機(ji)與泵的(de)聯軸器(qì)，對電機(ji)作試運(yùn)轉。使其(qí)♉轉向與(yu)泵的轉(zhuan)向标志(zhi)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型三螺(luó)杆泵的(de)使用

　　1、泵(bèng)啟動前(qián)，必須全(quán)開進油(yóu)和排油(you)閘閥。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(shǒu)次啟動(dòng)泵或再(zài)次使用(yòng)長期封(feng)存的泵(bèng)時，泵内(nèi)無🎯介質(zhi)，應在泵(beng)的進油(yóu)腔灌注(zhu)适量輸(shu)送介質(zhì)，避免泵(bèng)幹啟動(dong)。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、泵啟動(dòng)後，應密(mì)切注意(yì)電流表(biao)，壓力表(biǎo)和真空(kong)表的數(shù)👈值，超出(chū)規定值(zhí)時，應停(ting)泵找出(chu)原因後(hòu)，再行啟(qǐ)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、軸封(fēng)處點滴(di)洩露，應(ying)屬正常(cháng)現象，當(dang)洩露量(liang)大量增(zeng)加時，對(dui)軟填料(liao)密封應(ying)壓緊填(tian)料壓蓋(gai)，對機械(xiè)密封應(yīng)停泵修(xiū)複後，再(zai)行啟動(dòng)。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、用高溫(wēn)蒸汽清(qing)掃管線(xiàn)時，應避(bi)免高溫(wen)蒸汽通(tōng)過泵😍内(nei)。5, with high temperature steam cleaning pipeline, should avoid high temperature steam through the pump.6、如果泵(beng)長期不(bu)工作時(shí)，應進行(hang)油封，并(bìng)定期檢(jian)查油封(feng)情況❌，必(bì)🐕要🌐時重(zhòng)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(gǎn)泵特點(diǎn)及優點(dian)：

　　（1）壓力和(hé)流量範(fan)圍寬闊(kuò)，流量範(fan)圍0.2～320m3/h最高(gao)工作壓(yā)力可達(da)5MPa；（2）運送液(yè)體的種(zhong)類和粘(zhān)度範圍(wéi)寬廣,粘(zhān)度範圍(wei)1mm2/s-760mm2/s；（3）因為三(sān)螺杆泵(bèng)内的回(hui)轉部件(jiàn)慣性力(li)較低，故(gù)可使用(yòng)很高的(de)轉速；（4）吸(xi)入性能(néng)好，具有(you)很強的(de)自吸能(neng)力；（5）流量(liàng)均勻連(lian)續，振動(dòng)小，噪音(yīn)低，幾乎(hu)沒有脈(mo)動；（6）三螺(luo)杆泵結(jié)構堅實(shi)，安裝方(fāng)便有(卧(wò)式、立式(shi)、法蘭式(shi)、插裝式(shì)）保養容(rong)易；（7）三螺(luó)杆泵具(ju)有很強(qiang)的耐熱(re)性，一般(bān)工作溫(wēn)度是（1~250°C)超(chāo)過此溫(wēn)度需特(te)制；（8）根據(jù)所輸送(song)介質需(xū)要還可(kě)提供加(jiā)熱或冷(leng)卻結構(gòu)；（9）三螺杆(gan)泵幾乎(hu)沒有磨(mó)損，三螺(luo)杆泵隻(zhi)要選型(xing)正确，使(shǐ)用壽命(mìng)長。（10）三螺(luo)杆泵的(de)工作效(xiào)率高。

●三(sān)螺杆泵(bèng)注意事(shi)項

    1.三螺(luo)杆泵的(de)轉速選(xuǎn)用:三螺(luo)杆泵的(de)流量與(yǔ)轉速成(cheng)線性關(guān)系,相對(duì)于低轉(zhuan)速的螺(luo)杆泵,高(gao)轉速的(de)螺杆泵(beng)雖然能(néng)增加了(le)流量和(he)揚程,但(dàn)功率明(míng)顯增大(da),高轉速(sù)加速了(le)轉子與(yǔ)定子間(jian)的磨耗(hào),必定使(shǐ)螺杆泵(beng)過早失(shī)效,而且(qie)高轉速(su)螺杆泵(beng)的定轉(zhuan)子長度(dù)很短,極(jí)易磨損(sun),因而縮(suō)短了螺(luó)杆泵的(de)使用壽(shòu)命。通過(guò)減速機(ji)或無級(jí)調速機(ji)構來降(jiang)低轉速(sù),使勘轉(zhuan)速保持(chí)在每分(fèn)三百轉(zhuǎn)以下較(jiao)為合理(li)的範💚圍(wéi)内,與高(gāo)速運轉(zhuǎn)的螺杆(gan)泵相比(bǐ),使用壽(shou)命能延(yan)長幾倍(bèi)。

    2.螺杆泵(beng)的品質(zhì):現在市(shi)場上的(de)螺杆泵(bèng)的種類(lei)較多,相(xiàng)對而言(yán),進口的(de)螺杆泵(beng)設計合(hé)理,材質(zhì)精良,但(dàn)價格較(jiào)高,服務(wù)方面有(you)的不到(dào)位,配件(jian)價格高(gāo),訂貨周(zhōu)期長,可(kě)能影響(xiǎng)生産的(de)正常運(yun)行。國内(nèi)生産的(de)大都仿(pang)制🔴進口(kǒu)産品,産(chǎn)品質量(liàng)良莠不(bu)齊,在選(xuan)用國内(nèi)生産的(de)産品時(shi),在考慮(lǜ)其性價(jia)比的時(shi)候,選用(yòng)低轉速(su),長導程(chéng),傳動量(liang)部件材(cai)質優良(liáng),額定壽(shou)命長的(de)産品。

    3.确(que)保雜物(wù)不進入(ru)泵體:濕(shi)污泥中(zhōng)混入的(de)固體雜(zá)物會對(dui)螺杆泵(bèng)的橡膠(jiao)材質定(ding)子造成(chéng)損壞,所(suǒ)以确保(bǎo)雜物不(bu)進入泵(beng)的腔體(ti)是很重(zhong)要的,很(hen)多污水(shui)廠在泵(beng)前加裝(zhuāng)了粉碎(sui)機,也有(yǒu)的安裝(zhuāng)格栅裝(zhuang)置或濾(lü)網,阻擋(dǎng)雜物進(jin)入螺杆(gan)泵,對于(yu)格栅應(yīng)及時清(qīng)撈以免(mian)造成堵(du)塞。

    4.保持(chi)恒定的(de)出口壓(ya)力:螺杆(gǎn)泵是一(yi)種容積(ji)式回轉(zhuǎn)泵,當出(chu)口端受(shòu)阻以後(hòu),壓力會(huì)逐漸升(shēng)高,以至(zhì)于超過(guo)預定的(de)壓力值(zhi).此時電(dian)機負荷(he)急劇增(zeng)加.傳動(dong)機械相(xiang)關零件(jian)的負載(zai)也會超(chao)出設計(jì)值,嚴重(zhòng)時會發(fa)生電機(ji)燒毀,傳(chuan)動零件(jian)斷裂.為(wei)了避免(mian)螺杆泵(bèng)損壞,一(yī)般會在(zài)三螺杆(gan)泵出口(kou)處安裝(zhuāng)旁通溢(yi)流閥,用(yong)以穩定(dìng)出口壓(yā)力,保持(chí)泵的正(zheng)常運轉(zhuan)。

    5.避免斷(duan)料:三螺(luo)杆泵決(jue)不允許(xu)在斷料(liào)的情形(xíng)下運轉(zhuan),一經發(fa)生,橡膠(jiāo)定子由(yóu)于幹磨(mo)擦,瞬間(jiān)産生高(gāo)溫而燒(shao)壞,所以(yi),粉碎機(jī)完好,格(ge)栅暢通(tong)是螺杆(gǎn)泵正常(chang)運轉的(de)必要條(tiáo)件之一(yī),為此,有(yǒu)些螺杆(gan)泵還在(zài)泵身上(shang)安裝了(le)斷料停(ting)機裝置(zhì),當發生(sheng)斷料時(shí),由于螺(luo)杆泵其(qi)有自吸(xī)功能的(de)特性,腔(qiāng)體内會(hui)産生真(zhen)空,真空(kōng)裝置會(hui)使螺杆(gǎn)泵停止(zhi)運轉。

●螺(luo)杆磨損(sǔn)五點原(yuán)因:

    1、每種(zhǒng)塑料，都(dou)有一個(gè)理想塑(su)化的加(jiā)工溫度(du)範圍，應(ying)該控制(zhi)料筒加(jia)工溫度(dù)，使之接(jie)近這個(ge)溫度範(fan)圍。粒狀(zhuang)塑料從(cóng)💘料鬥進(jin)入料筒(tong)🌈，首先會(huì)到達加(jiā)料段，在(zai)加料段(duàn)必然會(huì)出現幹(gàn)性磨擦(ca)，當這些(xie)塑📱料受(shou)熱不足(zú)，熔融不(bu)均時，很(hen)易造成(cheng)料筒内(nei)壁及螺(luo)杆表面(mian)磨損🙇‍♀️增(zeng)大。同樣(yàng)，在壓縮(suo)段和均(jun1)👌化段，如(ru)果塑料(liào)的熔融(rong)狀👄态紊(wen)亂不均(jun1)，也會造(zào)成磨損(sǔn)增❤️快。

    2、轉(zhuǎn)速應調(diào)校得當(dang)。由于部(bù)分塑料(liao)加有強(qiang)化劑，如(rú)玻璃纖(xian)維、礦物(wù)質或其(qi)他填充(chōng)料。這些(xiē)物質對(dui)金屬材(cai)質的磨(mo)擦力往(wang)往比熔(róng)融塑料(liao)的大得(de)多。在注(zhu)塑這♉些(xie)塑料時(shí)，如果用(yong)高的轉(zhuan)速成，則(zé)在提高(gao)對塑料(liao)的剪切(qiē)力的同(tóng)時，亦将(jiāng)令強化(huà)相🚶‍♀️應地(dì)産生🔴更(gèng)多被撕(si)碎的纖(xian)維，被🌂撕(si)碎的纖(xiān)維含有(yǒu)鋒利末(mo)端，令磨(mo)損力✉️大(dà)為增加(jia)。無機礦(kuàng)物質在(zài)金屬🧑🏾‍🤝‍🧑🏼表(biǎo)面高速(su)滑行時(shí)，其刮削(xue)作用也(ye)不小。所(suǒ)以轉速(su)不宜調(diào)☔得太高(gāo)。

    3、螺杆在(zài)機筒内(nèi)轉動，物(wu)料與二(èr)者的摩(mo)擦，使螺(luó)杆與✏️機(ji)筒的工(gong)🙇‍♀️作表面(mian)逐漸磨(mó)損：螺杆(gǎn)直徑逐(zhu)漸縮小(xiǎo)，機🔆筒的(de)内孔直(zhí)徑逐漸(jiàn)加大。這(zhe)樣，螺杆(gan)與機筒(tǒng)的配合(hé)直徑間(jian)隙，随着(zhe)二者的(de)逐漸磨(mó)損而一(yi)點點加(jia)大。可是(shì)，由于機(jī)⭐筒前面(mian)機頭和(hé)分流闆(pǎn)的阻力(li)沒有改(gǎi)變，這就(jiu)增加了(le)被擠塑(sù)物料前(qián)進時的(de)漏流量(liang)，即物料(liao)從直徑(jing)間隙處(chù)向進料(liao)方向流(liú)動量增(zeng)加。結果(guǒ)使塑🚶膠(jiāo)機械生(shēng)産量下(xià)降。這種(zhǒng)現象又(you)使物料(liào)在機筒(tǒng)内停留(liú)時間增(zeng)加，造成(chéng)物料分(fen)解。如果(guǒ)是聚乙(yǐ)烯，分解(jiě)産生的(de)氯化氫(qīng)氣體加(jiā)強了對(dui)螺杆和(he)機筒的(de)🙇🏻腐蝕。

    4、 物(wu)料中如(ru)有碳酸(suān)鈣和玻(bō)璃纖維(wei)等填充(chong)料，能加(jia)快螺杆(gan)和⭐機筒(tǒng)❓的磨損(sun)。

    5、 由于物(wu)料沒有(yǒu)塑化均(jun)勻，或是(shi)有金屬(shǔ)異物混(hùn)入料中(zhōng)，使螺杆(gan)轉動扭(niu)矩力突(tu)然增加(jiā)，這種扭(niǔ)矩超出(chu)螺杆的(de)強度極(ji)限，使螺(luo)杆扭斷(duàn)。這是一(yī)種非常(cháng)規事故(gù)損壞。