河北远东泵业 输送丁苯乳胶泵   用W2.1zk46m1w73  原油输送泵   货油泵

 一、双螺杆泵的特点
   双螺杆泵可以无搅动无脉动平平稳地输送各种介质，由于泵体结构保证泵的工作元件内始终存有泵送液体作为密封液体，所有的泵有很强的自吸能力，且能汽液混输。
   双螺杆泵的特殊设计保证了泵有高的吸入性能即很小的NPSHr 值。
   双螺杆泵采用独立润滑的外置轴承允许输送各种非润滑性介质。
   双螺杆泵采用同步齿轮传动转动零件互不接触即使短时间干转也没有危险( 1~2min)。
   卧式立式带加热套等各种结构型式齐全可以输送各种清洁的不含固体颗粒的低粘度或高粘度介质先用正确的材质甚至可以输送许多腐蚀性介质。
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   三、双螺杆泵应用

   造船用作船用装载泵扫仓泵船用压载泵主机滑油泵燃油输送泵燃油喷射泵货油泵等。
   热电厂重油及原油输送泵重油燃油泵等。
   化工用作各种酸碱盐液以及树脂颜料油墨油漆甘油石蜡的输送泵。
   炼油厂用以输送各种加热油沥青油焦油乳胶液沥青及用作油轮油池油罐车等各种油品的装载及卸载。
   食品用于酒厂食品厂糖厂罐头厂等输送酒精蜂蜜糖汁牙膏牛奶奶油酱油植物油动物油葡萄酒等。
   油田输送各种油品原油等。

   ●双螺杆泵有密封式和不密封式两种类型，按介质从一端还是 从两端进入啮合空间，双螺杆又被分为双吸式和单吸式两种结构。双螺杆泵是外啮合的螺杆泵，它利用相互啮合，互不接触的两根螺杆来抽送液体。双螺杆泵为一种双吸式非密闭的双螺杆泵。一端伸出泵外的主动螺杆由原动机驱动。主动螺杆与从动螺杆具有不同旋向的螺纹。螺杆与泵体紧密贴合。从动螺杆是通过同步齿轮由主动螺杆带动的。Double screw pump has sealed and not enclosed two types, according to the medium from the side or from both ends into space meshing, double screw was divided into double suction type and structure of single suction type two kinds.Screw pump, twin screw pump is the external gear utilizing the mesh each other, mutual contact of two screw to pumping liquid.Double screw pump is a kind of double suction not airtight double screw pump.Active outside the side out of the pump screw driven by a prime mover.Driving screw and driven screw thread with different handedness.Screw pump body and tightly.Driven screw is driven by synchronous gear by the active screw.

   ●双螺杆泵作为一种容积式泵，泵内吸入室应与排出室严密地隔开。因此，泵体与螺杆外圆表面及螺杆与螺杆间隙应尽可能小些。同时螺杆与泵体、螺杆与螺杆间又相互形成密封腔，保证密闭，否则就可能有液体从间隙中倒流回去。Double screw pump as a positive displacement pump, the pump suction chamber should be closely separated and discharge chamber inside.Therefore, the pump body and screw cylindrical surface and screw and screw clearance should be as small as possible.Screw pump body and at the e time, each other between the screw and screw and form a sealed chamber, ensure airtight, otherwise there may be liquid backflow from the gap.

   ●双螺杆泵可分为内置轴承和外置轴承两种形式。在内置轴承的结构型式中轴承由输送物进行润滑。外置轴承结构的双螺杆泵工作腔同轴承是分开的。由于这种泵的结构和螺杆间存在的侧间隙，它可以输送非润滑性介质。此外，调整同步齿轮使得螺杆不接触，同时将输出扭矩的一半传给从动螺杆。正如所有螺杆泵一样，外置轴承式双螺杆泵也有自吸能力，而且多数泵输送元件本身都是双吸对称布置，可消除轴向力，也有很大的吸高。Double screw pump can be divided into internal bearing and the outer bearing two forms.In the built-in bearing structure bearing lubrication by conveying material.Working with external bearing structure of the double screw pump bearings are separated.Owing to the pump structure and side clearance between screw, it can transport non-lubricative medium.In addition, the adjustment of the synchronous gear makes the screw does not contact, at the e time the output torque of the half to driven screw.Like all of the screw pump, external bearing type twin-screw pump, and most are double suction pump element itself symmetric arrangement, can eliminate the axial force, also has a lot of high absorption.

   ●双螺杆泵系列产品分为单吸双螺杆泵和双吸双螺杆泵两大类。该系列产品具有特殊的螺杆型线和与之配套的特殊结构，广泛适用于石油、化工、冶金、钢铁、电力、船舶、制药、食品、建材等各种行业，其适用介质之多、输送范围之广、应用工况之复杂是其它泵类产品无法比拟的。这些特点也使得该系列泵具有潜在的使用发展前景。Double screw pump series products are divided into single suction of two kinds of double screw pump and double suction double screw pump.This series of products have special screw lines and form a complete set with the special structure, widely used in petroleum, chemical industry, metallurgy, steel, electricity, shipbuilding, pharmaceutical, food, building materials and other industries, by as much as its applicable medium, transmission range wide, application condition of the complex is unmatched by other pump product.These features also makes the use of this series of pumps with potential development prospects.

   ●泵体内装有两根左、有施单头螺纹的螺杆，主动螺杆2由动力机驱动转动时，靠同步齿轮1带动从动螺杆3转动。两根螺杆以及螺杆与泵体.之间存在着间隙，该间隙靠齿轮和轴承保证。其间隙大小，取决于液体粘度、工作压力等因素。由于每根螺杆两端螺纹的旋向相反，螺杆转动时，由螺杆啮合线形成的泵工作腔。Equipped with two left in the pump body, a single thread screw, active screw driven by engine 2 turns, driven by synchronous gear 1 driven screw 3 rotation.Two screw and screw and pump body. There is a gap between the gap by gear and bearing.The gap size, depends on the liquid viscosity, pressure and other factors.Because each thread rotate to the opposite on both ends of the screw, the screw rotates, formed by the screw meshing line pump working chamber.

   双螺杆泵应用现场: