螺杆泵具有以下優點：1．和離心泵相比螺杆泵無需安裝閥們流量是穩定的線性流動;2． 和柱塞泵相比螺杆泵具有自吸能力強、吸入高度強;3．和隔膜泵相比螺杆泵可輸送各種混合雜質含有氣體及固體顆粒或纖維的介質

，也可輸送各種腐蝕性物質;4． 和齒輪相比，螺杆泵可輸送高粘度的物質;5．和柱塞泵，隔膜泵及齒輪泵不同的是，螺杆泵可用于藥劑填充和計量.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 ear, 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.

     由于部件通用組合系列化有多種結構，可用于卧式，法蘭式和立式安裝。 根據所輸送介質需要還可提供加熱或冷卻結構。熱設備中用做燃油噴油，燃油供應和輸送泵。在機械工業中用做液壓，潤滑和遙控馬達泵。在化學石油化工和食品工業中用做裝載，輸送和供液泵。在船舶上用做輸送、增壓、燃油噴射和潤滑油泵以及船用液壓裝置泵。   Because there are many parts general combination series structure, can be used for horizontal, flange and vertical installation.According to the need to still can provide heating or cooling medium structure.Thermal equipment used in the fuel injection and fuel supply and transfer pump.In the mechanical industry used as hydraulic, lubrication and pump remote control motors.In the chemical petroleum chemical industry and food industry used as loading, transportation and feed liquid pump.On the ship for delivery, pressurization, fuel injection, and lubricating oil pump and Marine hydraulic gear pump. 

    三螺杆泵特點及優點：（1）壓力和流量範圍寬闊，流量範圍0.2～320m3/h最高工作壓力可達5MPa；（2）運送液體的種類和粘度範圍寬廣,粘度範圍1mm2/s-760mm2/s；（3）因為三螺杆泵内的回轉部件慣性力較低，故可使用很高的轉速；（4）吸入性能好，具有很強的自吸能力；（5）流量均勻連續，振動小，噪音低，幾乎沒有脈動；（6）三螺杆泵結構堅實，安裝方便有(卧式、立式、法蘭式、插裝式）保養容易；（7）三螺杆泵具有很強的耐熱性，一般工作溫度是（1~250°C)超過此溫度需特制；（8）根據所輸送介質需要還可提供加熱或冷卻結構；（9）三螺杆泵幾乎沒有磨損，三螺杆泵隻要選型正确，使用壽命長。（10）三螺杆泵的工作效率高。Three screw pump features and advantages: (1) a wide range of pressure and flow, flow range of 0.2 ~ 320 m3 / h top working pressure of 5 mpa;(2) wide range of delivery and type of liquid viscosity, viscosity range 1 was/was/s - 760 s;(3) because the rotary inertia force component inside the three screw pump is low, it can use the high speed;(4) inhalation can good, strong self-priming capacity;(5) flow uniformly continuous, little vibration, low noise, little pulse;(6) three screw pump structure solid, easy installation with (horizontal, vertical, flange, cartridge) easy maintenance.Three screw pump (7) has strong heat resistance, the general working temperature is (1 ~ 250 ° C) beyond the temperature should be specially;(8) according to the needs of the medium can also provide heating or cooling structure;(9) three screw pump almost no wear and tear, three screw pump through proper selection, long service life.High efficiency of three screw pump (10).

    注意事項:1.三螺杆泵的轉速選用:三螺杆泵的流量與轉速成線性關系,相對于低轉速的螺杆泵,高轉速的螺杆泵雖然能增加了流量和揚程,但功率明顯增大,高轉速加速了轉子與定子間的磨耗,必定使螺杆泵過早失效,而且高轉速螺杆泵的定轉子長度很短,極易磨損,因而縮短了螺杆泵的使用壽命。通過減速機或無級調速機構來降低轉速,使勘轉速保持在每分三百轉以下較為合理的範圍内,與高速運轉的螺杆泵相比,使用壽命能延長幾倍。2.螺杆泵的品質:現在市場上的螺杆泵的種類較多,相對而言,進口的螺杆泵設計合理,材質精良,但價格較高,服務方面有的不到位,配件價格高,訂貨周期長,可能影響生産的正常運行。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,額定壽命長的産品。3.确保雜物不進入泵體:濕污泥中混入的固體雜物會對螺杆泵的橡膠材質定子造成損壞,所以确保雜物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,阻擋雜物進入螺杆泵,對于格栅應及時清撈以免造成堵塞。4.保持恒定的出口壓力:螺杆泵是一種容積式回轉泵,當出口端受阻以後,壓力會逐漸升高,以至于超過預定的壓力值.此時電機負荷急劇增加.傳動機械相關零件的負載也會超出設計值,嚴重時會發生電機燒毀,傳動零件斷裂.為了避免螺杆泵損壞,一般會在三螺杆泵出口處安裝旁通溢流閥,用以穩定出口壓力,保持泵的正常運轉。5.避免斷料:三螺杆泵決不允許在斷料的情形下運轉,一經發生,橡膠定子由于幹磨擦,瞬間産生高溫而燒壞,所以,粉碎機完好,格栅暢通是螺杆泵正常運轉的必要條件之一,為此,有些螺杆泵還在泵身上安裝了斷料停機裝置,當發生斷料時,由于螺杆泵其有自吸功能的特性,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，要盡可能詳盡地了解泵的使用條件，除了運行參數，如流量，壓力需要清楚以外，輸送介質特性如介質的腐蝕性，含汽量，含固溶物的比率及固體顆粒的大小，以及介質的工作溫度，粘度，比重，對材料的腐蝕性等和泵裝置的吸入條件，安裝條件均要了解，根據我們的經驗，三螺杆泵選型時應注意以下幾點：轉速的選擇Note: 1. The three screw pump speed selection: a linear relationship with three-screw pump flow rate and rotational speed, low relative to the rotating speed of screw pump, high rotational speed of screw pump, although can increase the flow and head but power obviously increase, high speed accelerate the abrasion between the rotor and stator, must make the premature failure of screw pump, and the high speed of the screw pump stator length is short, easy to wear and tear, thus shortening the service life of the screw pump.Through reducer or stepless speed regulation mechanism to reduce the speed, keep to determine speed at three hundred revolutions per minute (the following reasonable range, compared with the high speed of screw pump, can prolong service life of a few times.2. The quality of the screw pump, now in the market is more, the kinds of screw pump, screw pump imported from rational design, excellent material, but the price is higher, the service aspect some do not reach the designated position, accessories price is high, the order cycle is long, may affect the normal running of production.Domestic production of generic mostly imported products, product quality is good and bad are intermingled, when choosing the products of the domestic, considering its cost-effective, choose low rotation speed, long lead, transmission quantity of parts material is good, rated life long product.3. Ensure that stuff does not enter the pump body: wet sludge mixed with solid debris can cause damage to the rubber stator of screw pump, so make sure debris into the cavity of the pump is not very important, a lot of sewage plant in front of the pump with a grinder, also some installation or mesh grille device, stop the debris into screw pump, the grating should be timely get so as not to cause congestion.4. Maintain a constant outlet pressure: screw pump is a kind of positive displacement rotary pump, when after the outlet is blocked, the pressure will gradually rise, so that more than a predetermined pressure value. The motor load increases sharply. Transmission machinery and related parts load will exceed the design value, serious happens when the motor is burnt, transmission parts fracture. In order to avoid damage of screw pump, typically, bypass the overflow valve is installed on the three screw pump outlet to stable outlet pressure, maintain the normal operation of the pump.5. Avoid cutting: three screw pump must not be allowed in the case of the cutting operation, once happened, the rubber stator due to dry friction, instant high temperature and burn out, so, crushing machine in good condition, grille flow is one of the necessary conditions for normal operation of the screw pump, therefore, some screw pump on pump installation end stop device, when cutting, due to the characteristics of the screw pump has a self-priming function, can produce vacuum chamber, vacuum device can make the screw pump stop running.5 selection problem: three screw pump selection, should understand the using condition of pump as much detail as possible, in addition to the operating parameters, such as flow rate, pressure needs to be clear, the characteristics of medium such as corrosive medium, gas content, including ratio of solid solution and the size of the solid particles, as well as the working temperature, medium viscosity, density, corrosion of materials and pump suction conditions, such as the installation conditions are to understand, according to our experience, three screw pump selection should pay attention to the following:The choice of speed

    螺杆磨損五點原因:1、每種塑料，都有一個理想塑化的加工溫度範圍，應該控制料筒加工溫度，使之接近這個溫度範圍。粒狀塑料從料鬥進入料筒，首先會到達加料段，在加料段必然會出現幹性磨擦，當這些塑料受熱不足，熔融不均時，很易造成料筒内壁及螺杆表面磨損增大。同樣，在壓縮段和均化段，如果塑料的熔融狀态紊亂不均，也會造成磨損增快。2、轉速應調校得當。由于部分塑料加有強化劑，如玻璃纖維、礦物質或其他填充料。這些物質對金屬材質的磨擦力往往比熔融塑料的大得多。在注塑這些塑料時，如果用高的轉速成，則在提高對塑料的剪切力的同時，亦将令強化相應地産生更多被撕碎的纖維，被撕碎的纖維含有鋒利末端，令磨損力大為增加。無機礦物質在金屬表面高速滑行時，其刮削作用也不小。所以轉速不宜調得太高。3、螺杆在機筒内轉動，物料與二者的摩擦，使螺杆與機筒的工作表面逐漸磨損：螺杆直徑逐漸縮小，機筒的内孔直徑逐漸加大。這樣，螺杆與機筒的配合直徑間隙，随着二者的逐漸磨損而一點點加大。可是，由于機筒前面機頭和分流闆的阻力沒有改變，這就增加了被擠塑物料前進時的漏流量，即物料從直徑間隙處向進料方向流動量增加。結果使塑膠機械生産量下降。這種現象又使物料在機筒内停留時間增加，造成物料分解。如果是聚乙烯，分解産生的氯化氫氣體加強了對螺杆和機筒的腐蝕。4、 物料中如有碳酸鈣和玻璃纖維等填充料，能加快螺杆和機筒的磨損。5、 由于物料沒有塑化均勻，或是有金屬異物混入料中，使螺杆轉動扭矩力突然增加，這種扭矩超出螺杆的強度極限，使螺杆扭斷。這是一種非常規事故損壞。Screw wear five reasons: 1, each type of plastic, there is a ideal plasticizing processing temperature range, temperature should be controlled cylinder processing, make it close to the temperature range.Granular plastic from the hopper into the cylinder, will first reach the feeding section, the charging period of inevitable dry friction, when the plastic is heated, fused inequality, very easy to cause the inner wall of the cylinder and the screw surface wear.Similarly, in compression and homogenization, if uneven plastic molten state of disorder, can cause wear faster.2, rotational speed should be proper calibration.As part of the plastic with enhancer, such as glass fiber, minerals, or other filling material.The material of metal friction often is much bigger than the molten plastic.When these plastic injection molding, if with high speed, is in the increase of plastic shear force at the same time, will also strengthen accordingly produce more fiber is torn, torn fiber containing sharp end, the wear and tear strength increased greatly.Inorganic minerals in the metal surface high-speed taxi, scraping effect is also not small.So the speed shoulds not be too high.3, screw rotation inside the barrel, friction material with both the screw and barrel of the surface of the work gradually wear: screw diameter reduced gradually, the barrel inner hole diameter increase gradually.In this way, the atching of the screw and barrel diameter clearance, with the gradual wear and tear of the a little bit more., however, because of the barrel in front of the nose and shunt plate resistance has not changed, which adds to the forward extrusion material leakage flow, the material feeding direction from diameter clearance flow has increased.Results decreased plastic machinery production.This phenomenon and make the material stay in the barrel time increased, the material break down.If it is polyethylene, decomposition of hydrogen chloride gas is used to strengthen the corrosion of the screw and barrel.4, material such as calcium carbonate and the filling material such as glass fiber, can speed up the screw and barrel of the wear and tear.5, as there is no uniform plasticizing, material or metal foreign bodies with material, to rotate the screw torque force suddenly increases, the torque beyond the ultimate strength of the screw, the screw twist off.This is a kind of unconventional accident damage.

     立式三螺杆泵是軸向輸送介質的定量容積式轉子泵，立式三螺杆泵由特殊的形狀曲線構成的螺旋型面的主動螺杆和兩根從動螺杆互相齧合及它們與泵套三孔内表面的配合，在泵的進出油口之間形成的數級動密封腔，當主螺杆和從動螺杆互相齧合轉動時，由于帶有一定黏度的介質使螺杆之間形成逐個的密封腔，并且螺杆和螺杆之間，螺杆與泵套之間形成油膜，不斷形成數個運動的密封腔，這些動密封腔不斷将介質從泵的進口沿螺杆軸向輸送到泵的出口，不斷在泵的進口處形成真空。立式三螺杆泵進口處的介質不斷在大氣壓的作用下，壓入泵腔内，(由于此時泵已經有自吸能力，也可稱做吸入泵腔内)使所輸送的介質逐級密封逐級提升壓力，形成一個連續平穩軸向移動的壓力液體。由于是軸向密封輸送，因此無攪拌無壓力脈動。立式三螺杆泵運行平穩，噪音低。主動螺杆和兩根從動螺杆的軸向力采用液壓平衡裝置，從動螺杆由液壓力驅動旋轉，所以螺杆之間無磨損，使用壽命長；立式三螺杆泵采用機械密封加骨架油封雙重密封方式，無洩露。立式三螺杆泵内部結構簡單緊湊，效率高、具有很強的自吸能力、節能效果好；且安裝、使用和維護檢修方便。立式三螺杆泵所輸送液體為各種不含固體顆粒、無腐蝕性油類及類似油類的潤滑性液體，所輸送黏度為1.2-100oE(3.0-760st)，高粘度液體也可以通過加溫、降粘後輸送。其溫度一般不超過150o，流量範圍3.32L/min-10000L/min(0.2m3/h-590m3/h)。部分特殊産品最高工作壓力可以達到16-21Mpa。該泵泵體可采用焊接工藝，如有需要可以根據管路布置設計進出口尺寸及位置，也可以根據介質的不同，采用不同材料（如不鏽鋼）生産。Three screw pump is a vertical axial transport     medium of quantitative positive displacement rotor pump, vertical three screw pump is composed of special shape curve of the helical surface driving screw and two driven screw meshing with each other and their inner surface of cooperate with the pump sets of three holes, formed between in and out of the oil outlet of pump number level dynamic seal cavity, when the LordScrew and driven screw meshing turns to each other, because of a certain viscosity medium make one sealed cavity formed between the screw, and between the screw and screw, the screw and the oil film formed between pump sets, constantly forming a number of movement of the sealed cavity, the dynamic seal cavity will continuously medium from the pump inlet along the screw axial loseTo the pump export, and constantly in formation at the inlet of the vacuum pump.Vertical three-screw pump inlet medium under the action of atmospheric pressure, pressure into the pump chamber, (because the pump has a self-priming capacity, can also be called suction pump cavity) make the conveying medium sealing lift pressure step by step, step by step to form a continuous smoothAxial movement of liquid pressure.Due to axial seal is conveying, so without mixing pressure pulsation.Vertical three-screw pump smooth operation, low noise.Active screw and axial force of the two driven screw adopts hydraulic balance device, driven screw driven by hydraulic pressure, so no wear between the screw, long service life;Vertical three-screw pump adopts double seal mechanical seal and framework oil seal, no leakage.Vertical three-screw pump internal simple and compact structure, high efficiency, strong self-priming capacity, energy saving effect is good;And easy installation, use and maintenance.Vertical three screw pump for conveying liquid containing no solid particles, no corrosive oil and similar oil lubrication and liquid delivery by viscosity of 1.2-100 oe (3.0-760 (st), but can be by heating, high viscosity liquid viscosity after delivery.The temperature is generally not more than 150 o, flow range 3.32 L/min - 10000 L/min (0.2 m3 / h - 590 m3 / h).Some special product highest workerAs pressure can reach 16-21 mpa.The pump pump body welding technology can be used, if necessary can according to the piping layout design size and position of imports and exports, can also according to different medium, the different materials such as stainless steel production.

    介質粘度：1～1500mm2/s，降低轉速粘度可到3×10mm2/s。

    壓力範圍：5.0MPa

    流量範圍：1～2000m3/h

    溫度範圍：-15℃～320℃

    性能範圍：1、輸送液體無脈動、無攪拌、振動小、噪音低；2、有較強的自吸能力，允許含有少量微小顆粒及在一定程度内氣液混輸；3、采用同步齒輪驅動，螺杆之間不接觸，軸端采用機械密封，泵的使用壽命長；4、合适的材料，可以輸送有腐蝕性的介質，适用範圍廣；5、雙吸式結構，螺杆上軸向力得到平衡。Medium viscosity: 1 ~ 1500 was/s, lower viscosity of rotational speed to 3 x 10 was/s.

The range of pressure: 5.0 MPa

Flow range: 1 ~ 2000 m3 / h

Temperature range: 15 ℃ ~ 320 ℃

Performance: 1, transmission fluid pulsation, stirring, little vibration, low noise;2, strong self-priming capacity, allow contains a small amount of tiny particles and to a certain extent in gas-

liquid mixing to lose;3, using synchronous gear drive, no contact between the screw, shaft end USES the mechanical seal, long service life of pump;4, with suitable material, can transport corrosive 

medium, the applicable scope is wide;5, the structure of the double suction type, screw on the axial force balance.