●3G三螺杆(gǎn)泵性能:

　　用來輸送溫度≤150℃、粘度3-760cSt、不(bú)含固體顆粒、無腐蝕性(xìng)、具有潤滑性能的介質。适用壓力範圍：0.6-2.5Mpa;适用流量範圍(wéi)：0.6-123m3/h。主要應用于燃油輸送、液壓工程、船舶工程，石化及其他工業(yè)。Used to transfer temperature 150 ℃, the viscosity of 3 or less - 760 CST, not containing solid particles,non-corrosive, has the lubrication performance of the medium.Apply pressure range: 0.6 to 2.5 Mpa;Applicable flow range: 0.6-123 m3 / h.Mainly used in the fuel transfer, hydraulic engineering, Marine engineering, petrochemical and other industries.

●3G三螺杆泵應用範圍:

　　1、介質為直線連續輸送、無(wú)攪拌、無脈動。2、振動小，噪音低。3、壓力高(gāo)、效率高。4、結(jié)構簡單(dān)、拆裝方便。5、體積小，重量輕。6、磨損輕微，壽命長。Application scope: 1, medium for linear continuous transmission, without stirring, without pulsation.2, small vibration, low noise.3, high pressure and high efficiency.4, simple structure, convenient tear open outfit.5, small volume, light weight.6, wear light, long service life.

●3G三螺杆泵工作原理:

　　3G型三螺杆泵是轉子型容積泵，适(shì)于輸送各(gè)種不含固體顆粒，無腐蝕性油類及(jí)類似(sì)油的潤滑性液體、輸(shū)送液體粘度2~760mm2/s，溫度不超過80℃, 超過(guò)80℃可用高溫(wēn)泵3GW型。3 g type is three screw pump rotor type positive displacement pump, is suitable for conveying various not containing solid particles, non-corrosive oil lubricity and similar oil liquid, conveying liquid viscosity was 2 to 760 / s, temperature not over 80 ℃, more than 80 ℃ high temperature pump available 3 gw type.

    3G型三螺杆具有(yǒu)多(duō)種結構，一般小流量泵襯套和泵體合為一個，可以卧式和(hé)立式安裝(zhuāng)。進油口(kǒu)方向(xiàng)可相隔90°任意安裝，軸封多數為機構密封。中等流量以上泵，襯套為一個單獨的(de)零件固定于泵體内，螺杆軸(zhóu)端裝有(yǒu)平衡(héng)環以液力平衡其軸向力。一般(bān)結構為卧式(shì)。進油口方向亦可以相隔90°任意安裝。改變(biàn)泵體後可制成立(lì)式。軸封根據情況有機械密封和軟填料(liào)密封兩種結構。Three screw with multiple structure of 3 g, general small flow pump bushings and pump body into one, can be installed in a horizontal and vertical.Oil inlet direction can be 90 ° apart any installation, most of the shaft sealing seal for your organization.The medium flow in pump, bushing as a separate component fixed in the pump body, screw shaft end is equipped with the gimbal ring to hydraulic balance the axial force.The general structure is horizontal.Inlet direction also can be 90 ° apart any installation.After the change of pump body can be made into vertical.Depending on the situation of the shaft sealing with mechanical seal and soft packing seal two structures.

    3G型三(sān)螺杆泵軸伸支承較小，應由原動機經彈性聯(lián)軸器直接驅動(dòng)，不得用皮帶輪等會(huì)産生額外(wài)徑向力較大的傳動(dòng)方式傳動。3 g type three-screw pump shaft and bearing is small, should be driven by a prime mover directly by the elastic coupling, shall not be used pulley will produce additional radial force large transmission way.

●3G三螺杆泵(bèng)輸送各種油類時應(yīng)注意事項：When conveying various oil matters should be paid attention to:

    1、輸送40~150mm2/s的油類最合适，允許(xǔ)按泵的最高工作壓力使(shǐ)用。2、輸送40mm2/s以下的油類，為保證泵的流量及壽命應降壓使用。3、輸送150mm2/s以上的油類，且進(jìn)油管道過長，彎頭過多，泵工作時如(rú)産生(shēng)噪音或振動(dòng)現象，則應考慮更(gèng)換低一級轉速的(de)電機運轉或縮短吸入管道，減少彎頭。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)螺杆泵安裝要求:3 g type three-screw pump installation requirements:

    1、安裝前應檢查泵的油封是否良好，并檢查泵在運輸中是否損壞，可用手(shǒu)轉動聯(lián)軸器是否有卡勁現象，如有則應拆泵進行清洗，修理和校正。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(ān)裝泵的進油和排油管道時，其管徑不得小于泵的進油和出油口口徑，進油管道(dào)不得過長，彎頭不得過多(duō)，否則将影響(xiǎng)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、當有兩台以上的泵安裝在同一(yī)條主管線上，為便于泵的啟動，在近泵的排油管上必(bì)須安裝逆止(zhǐ)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、對于在較高溫(wēn)度（指(zhǐ)60℃以上）下(xià)輸送粘度大的油類(lèi)（如：重油）的備用泵，必須是熱備用(yòng)泵，否則泵在低溫下啟動會造成電機過載或泵損壞。（建議在靠近泵的排油管上的逆止閥旁，并聯(lián)安裝一個小回流閥，對備用泵可(kě)微啟回流閥(fá)，使泵緩慢逆轉(zhuǎn)，其逆(nì)轉速(sù)≤100轉/分，使部分熱油經(jīng)常流過泵内，達(dá)到泵熱備用目(mù)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、輸送介質内含有(yǒu)機械雜質。将嚴重(zhòng)影響泵的運(yùn)轉和降低使用壽命，因此在泵安裝前，必須(xū)仔細清除進油管内的焊渣，沙粒(lì)等雜質，并應在(zài)進(jìn)油管道靠近泵處安裝濾器(qì)，濾器(qì)網孔大小，可根(gēn)據工作情況及介質(zhì)粘度确定。（一般(bān)可用40~80目網），過濾面積一般不得小于進油(yóu)管橫截面積的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、盡量在泵進油和排油口處的螺紋(wén)孔上連接壓(yā)力表和真空表(biǎo)，以便于觀察泵的運轉狀态。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、原動機與泵的轉軸必須在同一中心線上，可用直尺測隙規在(zài)聯軸器圓周上間隔90°處檢查。8、原動機與泵的轉向必須一緻，嚴格禁止原動機(jī)驅動泵逆轉。電機接線時，應先脫開電(diàn)機與泵的聯軸器，對電機作試運轉。使其轉向與泵的轉向标志一緻。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.

    工作原理:

    由于各(gè)螺杆的相互齧合(hé)以及螺杆與襯筒内壁的緊密配合，在泵的吸入口(kǒu)和排出口之間，就會被分隔成一個或多個密封空間(jiān)。随(suí)着螺杆的轉動和齧合，這些密封空間在(zài)泵的吸入端不斷形成(chéng)，将吸入(rù)室中的液體封入(rù)其中，并自吸入室沿螺杆軸(zhóu)向連續地推移至排出端，将封閉在 各(gè)空間中的液體不斷排出，猶如一螺母在螺(luó)紋回轉時(shí)被不斷向前(qián)推進的情形那樣，其中螺紋(wén)圈數看做液體，當(dāng)螺(luó)釘旋(xuán)轉時螺紋在轉動時就相(xiàng)當于液體在螺杆泵裡面的情形，這就是螺杆泵的基本工作原理。螺杆與殼(ké)體之間(jiān)的密封(fēng)面是一個空間曲面。在這個曲面上存在着諸如ab或de之類的非密封區，并(bìng)且與螺杆(gǎn)的凹槽部(bù)分形成許多三(sān)角形(xíng)的缺口abc、def。這些三角(jiǎo)形 的缺口構成液體的通道，使主動螺杆凹槽A與從動(dòng)螺杆(gǎn)上的凹槽B、C相連通。而凹槽B、C又沿着(zhe)自己的螺線繞向背面， 并分(fèn)别和背面的凹槽D、E相連通(tōng)。由于在槽D、E與槽F(它屬于另一頭螺線)相銜(xián)接的密封面上，也存在着(zhe)類似于正面的三角形缺口a’b’c’，所以D、F、E也将相(xiàng)通。這樣，凹槽ABCDEA也就組成一個“∞” 形的密封空間(如(rú)采用單頭螺紋，則凹槽(cáo)将順軸向盤饒螺杆，将(jiāng)吸排口貫通，無法形成密(mì)封)。不難想象，在這樣(yàng)的螺杆 上，将形成許(xǔ)多個獨立的“∞”形密封空間，每一個密封空(kōng)間所占(zhàn)有的軸向長度恰好等(děng)于累杆的(de)導程t。因此，為了使螺杆能吸、排油口分隔(gé)開來，螺杆(gǎn)的螺(luó)紋段的長度至少要大于一個導程。Due to the mutual engagement of each screw and screw and the close coordination of the liner wall, between the inlet and outlet of the pump, can be divided into one or more of the sealed space.With the rotation of the screw and the meshing, the sealed space in pump suction side form unceasingly, the liquid from the suction chamber seal in among them, and the suction chamber along the screw axial continuously goes on to the discharge end, will be closed in the space of the liquid discharge, like a nut in screw rotation being constantly move forward, the screw thread turns as liquid, when screw rotating screw rotation is equivalent to the liquid in the inside of the screw pump, this is the basic work principle of screw pump.The sealing surface between screw and shell is a space curved surface.Exist on the surface of the sealing section, such as ab or DE and screw groove part of the form many the gap of the triangle ABC, def.These triangular gap formation fluid channels, make active screw groove with A driven screw groove on the connected to B and C.And groove B, C and along their spiral around to the back, and, respectively, and on the back of the groove connected to D and E.Due to the tank D, E and F (it belongs to another head spiral) of corresponding seal surface, there are also similar to the positive triangle gap a 'b' c ', so D, F, E will also is same.So, grooves ABCDEA on forming a "up" form of the sealed space (such as using single thread, axial disc groove will arrange spare screw, connecting the suction PaiKou, unable to form a seal).It is not hard to imagine that in this kind of screw, will form a number of independent "up" form sealed space, each of the sealed space occupied the axial length equals the tired stem lead t.Therefore, in order to make the screw suction and discharge of oil can be separated, the length of the screw thread of at least than a lead.

    螺杆泵有以下優點：1)壓力和流量範圍寬闊。壓力約在3.4-340千克力/cm 2，流量可達(dá)18600cm3/分；2)運送液(yè)體的種類和粘度範圍寬(kuān)廣；3)因(yīn)為泵内的回(huí)轉(zhuǎn)部件慣性力較低，故可使(shǐ)用很高的轉速；4)吸入性能好，具有自(zì)吸能力；5)流量均(jun1)勻連續，振(zhèn)動小，噪音低；6)與其它回轉泵相比，對進入(rù)的氣體和(hé)污物不太敏感； 7)結構堅實，安裝(zhuāng)保養容易。rate of up to 18600 cubic cm/min;2) wide range of delivery and type of liquid viscosity;3) because the rotary inertia force component inside the pump is low, so it can be used in high speed;4) inhalation can good, have since

    螺杆泵的缺點是，螺杆的加(jiā)工和裝配要求較高；泵的性能對液體的(de)粘(zhān)度變化比較敏感。Screw pump has the following advantages: 1) the wide range of pressure and flow.Pressure about 3.4-340 kg/cm 2, flow

Suction capacity;5) flow uniformly continuous, little vibration, low noise;6) compared with other rotary pump, less sensitive to enter gas and dirt;7) solid structure, installation and maintenance easy.The screw pump's disadvantage is that the screw processing and assembling the demand is higher;The performance of the pump is more sensitive to the viscosity of the liquid change.

    特點:★定子與轉子接觸(chù)的螺旋封線将收入腔與排出(chū)腔完全分開，使泵具有閥門的隔斷作用★可實現液、氣、固體的多相混(hùn)輸★泵内流體流動(dòng)時容(róng)積不(bú)發生變化，沒有瑞流攪動(dòng)和脈★彈性定子形成的容積腔(qiāng)能有效地降低輸送(sòng)含(hán)固體顆粒介質時(shí)的磨(mó)耗★輸入介地(dì)粘度可達50000Mpa·s含(hán)固量可達50%★流量與轉速正比，借(jiè)助調速器可實現量(liàng)的自動調節,泵可(kě)以(yǐ)正反輸送。Painted features: the stator and rotor contact of spiral sealing line cavity will income which is completely separated from the discharge chamber, make the pump valve painted the partition function can realize the liquid, gas, solid multiphase painted on the pump fluid flow within the volume does not change, no red painted flow agitation and pulse volume formed by elastic stator cavity can effectively reduce the abrasion when conveying medium containing solid particles taken the input interface to viscosity of up to 50000 mpa s. painted solid content of 50% is proportional to flow rate and rotational speed, with the help of governor can realize automatic adjustment of the pump can be positive and negative transfer.

    螺杆泵具有以下優點：1．和離心(xīn)泵相比螺杆(gǎn)泵(bèng)無(wú)需安裝閥們流量(liàng)是穩定的線性流(liú)動;2． 和柱(zhù)塞泵(bèng)相比螺杆泵具有自吸能力強、吸入高度(dù)強;3．和隔膜(mó)泵相比螺杆泵可輸送各種混合雜質含有氣體及(jí)固體顆粒或纖維的介(jiè)質，也可輸送各種腐蝕(shí)性物質;4． 和(hé)齒輪相比，螺杆泵可輸送(sòng)高粘度的物質(zhì);5．和柱塞泵(bèng)，隔膜泵及(jí)齒輪泵不同的是，螺(luó)杆泵可用于藥(yào)劑填充和計量.Screw pump has the following advantages: 1. Compared with screw pump and centrifugal pump doesn't need to install the valve flow is stable linear flow;2. Compared with those of screw pump plunger pump self-priming capability is strong, strong suction height;3. Compared with the diaphragm pump screw pump can transport all kinds of gas and solid particle mixing impurities or fiber medium, also can transport all kinds of corrosive substance;4. Compared with gear, screw pump can transport high viscosity material;5. And plunger pump, diaphragm pump and the gear pump, screw pump can be used in the pharmaceutical filling and metering.

  注意事項:1.三螺杆泵的轉速選(xuǎn)用:三螺杆泵的流量與(yǔ)轉(zhuǎn)速成線性(xìng)關系,相對于低(dī)轉(zhuǎn)速(sù)的(de)螺杆泵,高轉(zhuǎn)速的螺杆泵雖然能增加了流量和揚程,但功率明顯增大,高(gāo)轉速(sù)加速了轉子與(yǔ)定子(zǐ)間的(de)磨耗,必定使螺(luó)杆泵過早失效(xiào),而且高轉速螺杆泵的定(dìng)轉子長(zhǎng)度很短,極易磨損,因而(ér)縮短了螺杆泵的使(shǐ)用壽命。通過減速機或無(wú)級調速機構來降低(dī)轉速,使勘轉速保持在每分三百轉以下較為合理(lǐ)的範圍内,與高速運轉的螺杆泵相比,使用壽命能(néng)延長幾倍。2.螺杆泵的品質(zhì):現在市(shì)場上的螺杆泵的(de)種類較多,相對而言,進口的螺杆泵設計合理,材質精良,但價格較高,服(fú)務方面有的不到位(wèi),配件價格高,訂(dìng)貨周期長,可能影響生産的正常運(yùn)行。國内生産的大都仿制進口産品,産品質量良莠不齊,在選用國内生産的産品時,在考慮其性價比的時候,選用低轉速,長導程,傳動量部件材質優良,額定(dìng)壽命長的産品(pǐn)。3.确保雜物不(bú)進入泵(bèng)體:濕污泥中混入的固體(tǐ)雜物會對螺杆泵的橡膠材質定(dìng)子造成損壞,所以确保雜物(wù)不進入泵的腔體是很重要的,很多污水廠在泵前加裝了粉碎機,也有的安裝格栅裝置或濾網,阻擋雜物(wù)進入螺杆泵,對于格栅應及時(shí)清撈以免造成(chéng)堵塞。4.保持恒定的出口壓力:螺杆泵(bèng)是一種容積式回轉泵,當出口端受阻以後(hòu),壓(yā)力會(huì)逐漸升(shēng)高,以至于(yú)超過預定的壓力值(zhí).此時電機負荷急劇增加.傳動機械相關零件的負載(zǎi)也會超出設計值,嚴重時會(huì)發生電機燒毀,傳動零件(jiàn)斷裂.為(wéi)了避免螺杆泵損壞,一般會在三螺杆泵出口處(chù)安裝旁通(tōng)溢(yì)流閥,用以(yǐ)穩定出口壓力,保持泵的正常運轉。5.避免斷料:三(sān)螺杆泵決不(bú)允許在斷料的情形下運轉,一經發生,橡(xiàng)膠定子(zǐ)由于幹磨擦,瞬間産生高溫而燒(shāo)壞,所(suǒ)以,粉碎機完好,格栅暢通是螺杆泵(bèng)正常(cháng)運轉的必要條件之一,為(wéi)此(cǐ),有(yǒu)些螺(luó)杆泵還在泵身上安(ān)裝(zhuāng)了斷料停機裝置,當(dāng)發生斷(duàn)料時,由于螺杆泵其(qí)有自吸功能的特性,腔體内會産生真空,真空裝置會使螺杆泵停止運轉。5選型問題:三螺杆泵選型時，要盡可能詳(xiáng)盡地了解泵的使用條件，除(chú)了運行參(cān)數，如流量，壓力需要清楚以外，輸送介質(zhì)的特(tè)性如介質的腐蝕性，含汽量(liàng)，含固溶(róng)物的比率及固體顆粒的大小，以及介質的工作溫度，粘度，比(bǐ)重，對材料的腐蝕性等和泵裝置的吸入條件，安裝(zhuāng)條件均要了解，