●3G三螺杆(gǎn)泵性能:

　　用來輸送溫度≤150℃、粘度3-760cSt、不含(hán)固體顆粒(lì)、無腐蝕性、具有潤滑性能(néng)的(de)介質。适用壓力範(fàn)圍：0.6-2.5Mpa;适用流量範圍：0.6-123m3/h。主要應用(yòng)于燃油輸送、液壓工程、船舶工程，石化及其他工業。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(sān)螺杆泵應用範圍:

　　1、介質為直線連續輸送(sòng)、無攪拌、無脈動。2、振動小，噪(zào)音低。3、壓力高、效(xiào)率高。4、結構簡單、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(luó)杆泵是轉子型容(róng)積泵，适于輸送各(gè)種不(bú)含固體顆粒，無腐蝕性油類及(jí)類似油的潤滑性液體、輸送液體粘度2~760mm2/s，溫度不超過80℃, 超過(guò)80℃可用高溫泵3GW型(xíng)。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(luó)杆具有(yǒu)多種結構，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。進油口方向可相隔90°任意安裝，軸封多數為機構密封。中等(děng)流量(liàng)以上泵，襯套為一個單獨的零件固定于泵體内，螺杆軸端裝有平衡環以液力平衡(héng)其軸向力。一般結構為卧式。進(jìn)油口方向亦可(kě)以相隔90°任(rèn)意安裝。改變泵體後可制成立式。軸封根據情況有機械(xiè)密封(fēng)和軟填料密封兩種結構。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軸器直接驅動(dòng)，不得用皮帶輪(lún)等會(huì)産生額外徑向力較大的(de)傳動(dòng)方式(shì)傳動(dòng)。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三螺杆泵輸送各種(zhǒng)油類時應注意事(shì)項：When conveying various oil matters should be paid attention to:

    1、輸送40~150mm2/s的油類最合适，允許(xǔ)按泵的最高工作(zuò)壓力使(shǐ)用。2、輸送40mm2/s以(yǐ)下的油類，為保證泵(bèng)的流量及壽命(mìng)應降(jiàng)壓使用。3、輸送150mm2/s以上的油類，且進油管道過長，彎頭過多，泵工作時如産生噪音或振(zhèn)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(chá)泵在運輸中是否損壞，可用手(shǒu)轉動聯軸(zhóu)器是否有卡勁現象(xiàng)，如有則應拆泵進行清洗，修(xiū)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、安裝泵的進油和排(pái)油管道時，其管徑不得小于泵的進油和出油口口徑，進油管(guǎn)道不得過長，彎頭不得(dé)過多，否則将影響泵(bèng)的工作狀态。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)台以上的泵安裝在同一條主管線上(shàng)，為便(biàn)于泵的啟動，在近泵的(de)排油管上必須安裝逆止閥。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、對于在較高溫度（指60℃以上）下輸送粘度大的油類（如：重油）的(de)備用泵，必須是(shì)熱備用泵，否則泵在低溫(wēn)下啟動會造成(chéng)電機過載或泵損壞。（建議在靠近泵(bèng)的排油管上的逆止(zhǐ)閥旁，并聯安裝一個小回流閥，對備用泵可微(wēi)啟回流閥，使(shǐ)泵(bèng)緩慢逆轉，其逆轉速(sù)≤100轉/分，使部分熱油經常流過泵内，達到泵熱備用目的(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、輸送介質内含有機械雜質。将嚴重影響泵的運轉和降低(dī)使用壽命，因此(cǐ)在泵安裝前，必(bì)須仔細清除進油管内的焊渣(zhā)，沙粒等雜質，并應在進油管道靠近泵處安裝濾器，濾器(qì)網孔大小，可(kě)根據工作情況及(jí)介質粘度确定。（一般可用(yòng)40~80目網），過濾(lǜ)面積一般不得小(xiǎo)于進油(yóu)管橫截面積的20倍(bèi)。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(zhuǎn)軸必須在(zài)同一中心(xīn)線上，可用直尺測隙(xì)規在聯軸(zhóu)器圓周上間隔90°處檢查。8、原(yuán)動機與泵的轉向必須一緻(zhì)，嚴格禁止原動機(jī)驅動泵逆轉。電機接(jiē)線時，應先脫開電(diàn)機與泵的聯軸器，對電(diàn)機作試運(yùn)轉。使其轉向(xiàng)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:

    由于各螺杆的相互齧合(hé)以及螺杆與襯筒内(nèi)壁的緊密配(pèi)合，在泵的吸入口和(hé)排出口之間，就會被分隔成一個或(huò)多個密封空(kōng)間。随(suí)着螺杆的轉動和齧合，這些密封空間在泵的吸入端不斷形成，将吸入室中的液體封入其中，并自吸入室沿螺杆軸(zhóu)向連續地推移至排出端(duān)，将封閉在 各空間中的液體不斷排出，猶如一螺母在螺紋回轉時被不斷向前推進的情形(xíng)那樣(yàng)，其中螺紋圈數看做液體，當螺(luó)釘旋轉時螺紋在轉動時就相當于液體在螺杆泵裡面的情形，這就是螺杆泵的基本(běn)工作(zuò)原理。螺杆與殼體之間(jiān)的密封面是一個(gè)空間曲面。在這(zhè)個曲面上存在着諸如ab或(huò)de之類的非密封區，并且與螺杆(gǎn)的凹槽部分形成許多三角(jiǎo)形的缺口abc、def。這些三角形 的缺口構(gòu)成液體的通道，使(shǐ)主動螺杆凹槽A與從動螺杆上的凹槽B、C相連通(tōng)。而凹槽B、C又沿着自己的螺線繞向背面， 并分别和背面的凹槽(cáo)D、E相連通。由于在槽(cáo)D、E與槽F(它屬(shǔ)于另一頭螺線)相銜接的密封面上，也存(cún)在(zài)着類似于正面的三角(jiǎo)形缺(quē)口a’b’c’，所以D、F、E也(yě)将相通。這樣(yàng)，凹槽ABCDEA也就組成(chéng)一個“∞” 形的密封空間(如(rú)采用單頭螺紋(wén)，則凹槽将順軸向盤饒螺杆，将吸排口貫通，無法形成密封)。不難想象，在這樣(yàng)的螺杆 上，将形(xíng)成許(xǔ)多個獨立的“∞”形密封空間，每一個密封空間所占有的軸向長度恰好等于(yú)累杆的導程t。因此，為了使螺(luó)杆能吸、排油口分隔開來，螺(luó)杆的螺紋段的長度至少要大于(yú)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(fàn)圍寬闊。壓力約在3.4-340千克力/cm 2，流量可達18600cm3/分；2)運送液體的種(zhǒng)類和粘度範圍寬廣；3)因(yīn)為泵内的回轉部件慣性力較(jiào)低，故可使(shǐ)用(yòng)很高的轉速；4)吸入性能(néng)好，具有自吸能力；5)流量均勻連(lián)續，振動小，噪音低；6)與其它回轉泵相比，對進入的氣體和污(wū)物不太(tài)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(de)缺點是，螺杆的加(jiā)工和裝配要求較高；泵(bèng)的性能對液體的粘度變化比(bǐ)較敏(mǐn)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:★定子與轉子接觸的螺旋封線将收入腔與排出腔完(wán)全分開，使泵具有閥門的隔(gé)斷作(zuò)用★可實現液、氣、固體的多相混(hùn)輸★泵内流體流動時容積不發生變化，沒有瑞流攪動(dòng)和脈★彈性定子(zǐ)形成的容積腔能有效地降低輸送(sòng)含固體顆粒介質時的磨耗★輸入介(jiè)地粘度可達50000Mpa·s含固量(liàng)可達50%★流(liú)量與轉速正比，借助調速器(qì)可實現量的自動調節,泵可以正反(fǎn)輸(shū)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(yǐ)下優點：1．和離心泵相比螺杆泵無(wú)需安裝閥們流量是穩(wěn)定的線性流動;2． 和柱塞泵相比螺杆泵具(jù)有自吸能(néng)力強、吸入高度強;3．和隔膜泵相比螺杆泵可輸送各(gè)種混合雜質含有氣體及固體顆粒或(huò)纖維的介質(zhì)，也可輸送各種腐蝕(shí)性物質;4． 和齒輪相比，螺杆泵可輸送高粘度的物質(zhì);5．和(hé)柱塞泵(bèng)，隔膜泵及齒輪泵不同的是，螺(luó)杆泵可用于藥劑填(tián)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(zhù)意事項:1.三螺(luó)杆泵(bèng)的轉速選用:三螺(luó)杆(gǎn)泵的流量與(yǔ)轉速成線性關系,相對于低轉(zhuǎn)速的螺杆泵,高轉速的螺杆(gǎn)泵雖然能增(zēng)加了流量和揚程,但功率明顯增大,高轉速(sù)加速(sù)了轉子與(yǔ)定子間的磨耗,必定使(shǐ)螺杆(gǎn)泵過早失效,而且高轉速螺杆泵的定(dìng)轉子長度很短,極易磨損,因而(ér)縮短了螺杆泵的使(shǐ)用壽命。通過減速機或無級調速機構(gòu)來降低轉(zhuǎn)速,使勘轉速保持(chí)在每分三百轉以下較為合理(lǐ)的範圍内,與高(gāo)速運轉的螺杆泵相(xiàng)比,使(shǐ)用壽命能延長幾倍。2.螺杆泵的品質:現在市場上的螺杆(gǎn)泵的種類較多,相對而言,進口的螺(luó)杆(gǎn)泵設計合(hé)理,材質精良(liáng),但價(jià)格較高,服務方面有的不(bú)到位(wèi),配(pèi)件價格高,訂貨周期長,可能影響生産(chǎn)的正(zhèng)常運行。國内生産的大都仿制進口(kǒu)産品,産品質量良莠(yǒu)不齊,在(zài)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(bù)件材質優良(liáng),額定壽命長的産品。3.确保雜物不進入泵(bèng)體:濕污泥中混入的固體雜物會對螺杆泵的(de)橡膠材質定子造成損壞,所以确保雜物不進入泵的腔(qiāng)體是很重要的,很多污水廠在泵前加裝(zhuāng)了粉碎機(jī),也有的安裝格栅裝置或濾網,阻擋雜物進入(rù)螺杆泵,對于格(gé)栅應及時清撈以免造成堵(dǔ)塞。4.保持恒定的出口壓力:螺杆泵(bèng)是一種容積式回轉(zhuǎn)泵,當出口端受阻以後(hòu),壓力會(huì)逐漸升高,以至(zhì)于超過預(yù)定的壓力值.此(cǐ)時電機負(fù)荷急劇增加.傳動機械相關零件的負載也會超出設計值,嚴(yán)重時會發生電機燒毀,傳(chuán)動零件(jiàn)斷裂.為了避免螺杆泵損壞,一般會在三螺(luó)杆泵出口處安(ān)裝旁通溢(yì)流閥,用(yòng)以穩定出口壓力(lì),保持泵的正常運轉。5.避免斷料:三螺杆泵決不(bú)允許在斷料的情形下運轉,一經(jīng)發生,橡(xiàng)膠定(dìng)子由于幹磨擦,瞬間産生高溫而燒壞,所(suǒ)以,粉碎機完好,格栅暢通是螺杆泵(bèng)正常運轉的必要條件之一,為此,有些螺(luó)杆泵還在泵身上安裝了斷料(liào)停機裝置(zhì),當發生斷料時,由(yóu)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(zhuāng)置會使(shǐ)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(bèng)的使用條件，除(chú)了運行參(cān)數，如流量，壓力需要清楚以外，輸送介質的(de)特(tè)性如介質的腐蝕性，含汽量(liàng)，含固溶物的比(bǐ)率及固體顆粒的大小，以及介質(zhì)的工作(zuò)溫度，粘度，比(bǐ)重，對材料的腐蝕性(xìng)等和泵裝置的(de)吸(xī)入條件，安裝條件均要(yào)了解，