●3G三螺杆(gǎn)泵輸送各(gè)種油類時(shi)應注意事(shì)項：When conveying various oil matters should be paid attention to:

    1、輸送40~150mm2/s的(de)油類最合(hé)适，允許按(àn)泵的最高(gāo)工作壓力(li)使用。2、輸送(sòng)40mm2/s以下的油(yóu)類，為保證(zheng)泵的流量(liang)及壽命應(ying)降壓使用(yòng)。3、輸送150mm2/s以上(shàng)的油類，且(qiě)進油管道(dào)過長，彎頭(tóu)過多，泵工(gōng)作時如産(chan)生噪音或(huo)振動現象(xiàng)，則應考慮(lǜ)更換低一(yī)級轉🔆速的(de)電機運轉(zhuǎn)或縮短吸(xi)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(xíng)三螺杆泵(beng)安裝要求(qiú):3 g type three-screw pump installation requirements:

    1、安裝前應(ying)檢查泵的(de)油封是否(fou)良好，并檢(jian)查泵在運(yùn)輸中是否(fou)損壞，可用(yong)手轉動聯(lian)軸器是否(fǒu)有卡勁現(xian)象，如有則(zé)應拆💞泵進(jìn)行清洗，修(xiu)理和校正(zhèng)。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、安裝泵的(de)進油和排(pai)油管道時(shi)，其管徑不(bú)得小于泵(beng)的進油和(he)出油口口(kou)徑，進油管(guan)道不得過(guo)長，彎頭不(bu)得過🌐多，否(fǒu)則将影響(xiǎng)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(yǒu)兩台以上(shang)的泵安裝(zhuang)在同一條(tiao)主管線上(shàng)，為便于泵(bèng)✊的啟動，在(zai)近泵的排(pái)油管上必(bi)須安裝逆(ni)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(yú)在較高溫(wēn)度（指60℃以上(shàng)）下輸送粘(zhan)度大的油(yóu)類（如：重油(yóu)）的備用泵(beng)，必須是熱(re)備用🏃🏻‍♂️泵，否(fou)則泵在低(di)溫下啟動(dong)會造成電(diàn)機過載或(huò)泵損壞。（建(jian)議在靠近(jin)泵的排油(yóu)管上的逆(nì)止閥旁，并(bing)聯安裝一(yī)個小回流(liu)閥，對🏒備用(yong)泵可微啟(qǐ)回流閥，使(shi)泵緩慢逆(nì)轉，其逆轉(zhuan)速≤100轉/分，使(shi)部分熱油(you)經常流過(guò)泵内，達到(dào)泵熱備用(yòng)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(song)介質内含(hán)有機械雜(za)質。将嚴重(zhong)影響泵的(de)運轉和降(jiàng)低使用壽(shou)命，因此在(zài)泵安裝前(qian)，必須仔細(xì)清除🈲進油(yóu)管内的焊(hàn)渣，沙📱粒等(deng)雜質，并應(ying)在進油管(guǎn)道靠🌏近泵(beng)處安裝濾(lǜ)器，濾器網(wǎng)孔大小，可(kě)根據工作(zuo)情況及介(jiè)質粘度确(que)定。（一般可(ke)用40~80目網），過(guò)濾面積一(yī)般不得小(xiǎo)于進油管(guǎn)橫截面積(ji)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、盡量(liang)在泵進油(yóu)和排油口(kou)處的螺紋(wen)孔上連接(jie)壓力表和(he)真空表，以(yi)便于觀察(cha)泵的運轉(zhuan)狀态。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(dong)機與泵的(de)轉軸必須(xū)在同一中(zhong)心線上，可(ke)用直尺測(ce)隙☎️規在聯(lian)軸器圓周(zhou)上間隔90°處(chu)檢查。8、原動(dòng)機與泵的(de)轉向必須(xū)一緻，嚴格(gé)禁止原動(dòng)機驅🏒動泵(beng)🐇逆轉💋。電機(ji)接線時，應(yīng)先脫開電(dian)機與泵的(de)聯軸器，對(dui)電機作試(shi)運轉。使其(qí)轉向與泵(beng)的轉向标(biāo)志一緻。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(de)使用

　　1、泵啟(qǐ)動前，必須(xu)全開進油(you)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(qǐ)動泵或再(zài)次使用長(zhang)期封存的(de)泵時，泵内(nei)無🌈介質，應(ying)在泵的進(jin)油腔灌注(zhù)适量輸送(song)介質，避免(miǎn)泵幹啟♊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、泵啟動後(hou)，應密切注(zhu)意電流表(biao)，壓力表和(he)真空表的(de)數值🔞，超出(chū)規定值時(shi)，應停泵找(zhǎo)出原因後(hòu)，再行啟動(dong)。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、軸封處點(diǎn)滴洩露，應(yīng)屬正常現(xiàn)象，當洩露(lu)量大量增(zeng)加時，對軟(ruǎn)填🐉料密封(feng)應壓緊填(tian)料壓蓋，對(dui)機械密封(fēng)應停泵修(xiū)複後🌍，再行(hang)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、用高(gāo)溫蒸汽清(qing)掃管線時(shi)，應避免高(gao)溫蒸汽通(tōng)過泵内。5, with high temperature steam cleaning pipeline, should avoid high temperature steam through the pump.6、如(ru)果泵長期(qī)不工作時(shi)，應進行油(yóu)封，并定期(qi)檢查油封(fēng)情況，必要(yao)時重新油(yóu)封。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)泵特點及(jí)優點：

　　（1）壓力(li)和流量範(fàn)圍寬闊，流(liú)量範圍0.2～320m3/h最(zuì)高工作壓(yā)力可達5MPa；（2）運(yun)送液體的(de)種類和粘(zhan)度範圍寬(kuan)廣,粘度範(fàn)圍1mm2/s-760mm2/s；（3）因為三(sān)螺杆泵内(nei)的回轉部(bù)件慣性力(li)較低，故可(kě)使用很高(gao)🐉的轉速；（4）吸(xi)入性能好(hao)，具有很強(qiang)的自吸能(néng)力；（5）流量均(jun1)勻連續，振(zhen)動小，噪音(yīn)低，幾乎沒(mei)有脈動；（6）三(san)螺杆泵結(jié)構堅實，安(an)裝方便有(you)(卧式、立式(shi)、法蘭式、插(chā)裝式）保養(yǎng)容易；（7）三螺(luo)杆泵具有(yǒu)很強的耐(nài)熱性，一般(ban)工作溫度(du)是（1~250°C)超過此(ci)溫度需特(tè)制；（8）根據所(suǒ)輸送介質(zhì)需要還可(kě)提供加熱(re)或冷卻結(jie)構；（9）三螺杆(gan)泵幾乎沒(méi)有磨損，三(san)螺杆泵隻(zhī)要選型正(zheng)确，使用👨‍❤️‍👨壽(shòu)命長。（10）三螺(luó)杆泵的工(gōng)作效率高(gao)。

●三螺杆泵(beng)注意事項(xiang)

    1.三螺杆泵(beng)的轉速選(xuan)用:三螺杆(gǎn)泵的流量(liang)與轉速成(cheng)線性關系(xì),相對于低(dī)轉速的螺(luo)杆泵,高轉(zhuǎn)速的螺杆(gǎn)泵雖然能(neng)增加了流(liu)量和揚程(chéng),但功率明(ming)顯增大,高(gāo)轉速加速(su)了轉子與(yǔ)定子間的(de)磨耗,必定(dìng)使螺杆泵(beng)過早失效(xiao),而且高轉(zhuan)速螺杆泵(bèng)的定轉子(zi)長度很短(duan),極易磨損(sǔn),因而縮短(duan)了螺杆泵(bèng)的使用壽(shou)命。通過減(jiǎn)速機或無(wu)級調速🚶機(ji)👉構來降低(dī)轉速,使勘(kan)轉速保持(chí)在每分三(san)百轉以下(xia)較為合理(lǐ)的範圍内(nèi),與高速運(yùn)轉的螺杆(gǎn)泵相比,使(shi)用壽命能(néng)延長幾倍(bèi)。

    2.螺杆泵的(de)品質:現在(zài)市場上的(de)螺杆泵的(de)種類較多(duo),相對而言(yán),進口的螺(luo)杆泵設計(jì)合理,材質(zhì)精良,但價(jia)格較高,服(fú)務方面有(you)的不到位(wei),配件價格(gé)高,訂貨周(zhou)期長,可能(néng)影響生産(chǎn)的正常運(yun)行。國内生(shēng)産的大都(dōu)仿制進口(kou)産品,産品(pǐn)質量良莠(you)不齊,在選(xuǎn)用國内生(shēng)産的産品(pǐn)時,在考慮(lǜ)其性價比(bi)的時候,選(xuan)用低轉速(su),長導程,傳(chuan)動量部件(jian)材質優良(liáng),額定壽命(ming)長的産品(pin)。

    3.确保雜物(wù)不進入泵(bèng)體:濕污泥(ní)中混入的(de)固體雜物(wu)會對螺杆(gǎn)泵的橡膠(jiao)材💯質定子(zǐ)造♋成損壞(huai),所以确保(bao)雜物不進(jin)入泵的腔(qiang)體是很重(zhòng)要的,很多(duō)污水廠在(zai)泵前加裝(zhuang)了粉碎機(jī),也有的安(an)裝格栅裝(zhuāng)置或濾網(wǎng),阻擋雜物(wù)進入螺杆(gan)泵,對于格(ge)栅應及時(shí)清撈以免(miǎn)造成堵塞(sai)。

    4.保持恒定(dìng)的出口壓(yā)力:螺杆泵(beng)是一種容(róng)積式回轉(zhuǎn)泵,當出口(kou)端受阻以(yǐ)後,壓力會(hui)逐漸升高(gao),以至于超(chao)過預定的(de)壓力值.此(cǐ)時電機負(fù)荷急劇增(zēng)加.傳動機(jī)械相關零(líng)件的負載(zǎi)也會超出(chū)設計值,嚴(yan)重時會發(fā)生電機燒(shao)毀,傳動零(ling)件斷裂.為(wéi)了避免螺(luo)杆泵損壞(huài),一般會在(zai)三螺杆泵(bèng)出口處安(an)裝旁通溢(yi)流閥,用以(yǐ)穩定出口(kǒu)壓力,保持(chí)泵的正常(chang)運轉。

    5.避免(miǎn)斷料:三螺(luó)杆泵決不(bu)允許在斷(duan)料的情形(xíng)下運轉,一(yi)經發生,橡(xiàng)膠定子由(yóu)于幹磨擦(ca),瞬間産生(sheng)高溫而燒(shāo)壞,所以,粉(fěn)碎機完好(hǎo),格栅暢通(tong)是螺杆泵(bèng)正常運轉(zhuǎn)的必要條(tiáo)件之一,為(wéi)此,有些螺(luo)杆泵還在(zài)泵身上安(ān)裝了斷料(liao)停機裝置(zhi),當發生斷(duàn)料時,由于(yú)螺杆泵其(qi)有自吸功(gōng)能的特性(xìng),腔體内會(huì)産生真空(kong),真空裝置(zhì)會使螺杆(gan)泵停止運(yùn)轉。

●螺杆磨(mo)損五點原(yuan)因:

    1、每種塑(su)料，都有一(yī)個理想塑(sù)化的加工(gong)溫度範圍(wéi)，應該控制(zhì)😄料筒加工(gōng)溫度，使之(zhī)接近這個(ge)溫度範圍(wéi)。粒狀塑料(liao)從料鬥進(jin)入料筒🌈，首(shǒu)先會到達(dá)加料段，在(zai)加料段必(bì)然會出⛱️現(xiàn)幹性磨擦(ca)，當這些塑(sù)料受熱不(bú)足，熔融不(bú)均時，很易(yì)造成料筒(tong)内🧑🏾‍🤝‍🧑🏼壁及螺(luó)杆表面磨(mó)損增大。同(tóng)樣，在壓縮(suo)段和均化(hua)段，如果塑(su)料的熔融(rong)狀态紊亂(luàn)不均，也會(huì)造成磨損(sǔn)增快。

    2、轉速(sù)應調校得(de)當。由于部(bu)分塑料加(jia)有強化劑(jì)，如玻璃纖(xiān)⛹🏻‍♀️維㊙️、礦物質(zhi)或其他填(tian)充料。這些(xie)物質對金(jīn)屬材質的(de)磨擦💃力往(wang)往比熔融(róng)塑料的大(dà)得多。在注(zhu)塑這些塑(sù)料時，如果(guǒ)用高的轉(zhuan)速成，則在(zai)提高對塑(sù)料的剪切(qie)力的😘同時(shi)，亦将令強(qiang)化相應地(di)産生更多(duō)被撕碎的(de)纖維，被撕(si)碎的纖維(wei)含有鋒利(li)末端，令磨(mo)損力大為(wei)增加。無機(jī)礦物質在(zài)金屬表面(mian)高速滑行(hang)時，其刮削(xuē)作用也不(bu)小。所以轉(zhuan)速不宜調(diào)⭐得太高。

    3、螺(luo)杆在機筒(tong)内轉動，物(wu)料與二者(zhě)的摩擦，使(shi)螺杆與機(ji)🐪筒的工📱作(zuo)表面逐漸(jian)磨損：螺杆(gan)直徑逐漸(jiàn)縮小，機筒(tǒng)的内孔✏️直(zhi)徑逐漸🏒加(jiā)大。這樣，螺(luó)杆與機筒(tong)的配合直(zhi)徑間隙，随(suí)着二者的(de)逐漸磨損(sun)而一點點(diǎn)加大。可是(shì)，由于機筒(tong)前面機頭(tou)和分流闆(pǎn)的阻力沒(mei)有改變，這(zhe)就增加了(le)被擠塑物(wu)料前進時(shi)的漏流量(liàng)，即物料😘從(cóng)直徑間隙(xi)處向進料(liao)方向流動(dòng)量增加。結(jié)果使塑膠(jiao)機械生産(chǎn)量下💘降。這(zhe)種🈚現象又(you)使物料在(zai)機筒内停(tíng)留時間增(zeng)加，造成物(wù)料分解。如(ru)果是聚乙(yǐ)烯，分解産(chǎn)生的氯化(huà)氫氣體加(jiā)🏃🏻強了對❌螺(luó)杆和機筒(tong)的腐蝕。

    4、 物(wu)料中如有(yǒu)碳酸鈣和(he)玻璃纖維(wéi)等填充料(liào)，能加快💋螺(luo)🆚杆和機筒(tǒng)的磨損。

    5、 由(you)于物料沒(mei)有塑化均(jun)勻，或是有(you)金屬異物(wù)混入料🧑🏾‍🤝‍🧑🏼中(zhong)，使🥰螺杆轉(zhuan)動扭矩力(li)突然增加(jia)，這種扭矩(ju)超出螺杆(gǎn)的❌強度👣極(jí)限，使螺杆(gǎn)扭🏃‍♂️斷。這是(shì)一種非常(cháng)規事故損(sǔn)壞。