3GR70*2W21三螺杆泵船用低压燃油泵配5.5KW电机重1

发布日期：2017-04-12 点击：次

3GR70*2W21三螺杆泵的特点: ① 螺杆与泵套接触的螺旋封线将收入腔与排出腔分开，使泵具有阀门的隔断作用； ②可实现液、气、固体的多相混输； ③ 泵内流体流动时容积不发生变化，没有串流搅动和脉动； ④ 弹性定子形成的容积腔能地降低输送含固体颗粒介质时的磨耗；⑤输入介质粘度可达 50000Mpa • s 含固量可达 50% ； ⑥流量与转速正比，借助调速器可实现量的自动调节泵可以正反输送。(1) the screw will contact with the pump sets of spiral sealing line income cavity which is completely separated from the discharge chamber, make the pump valves of partition function;(2) can achieve liquid, gas, solid multiphase mixed lose;(3) pump fluid flow within the volume does not change, no streaming agitation and fluctuating;(4) the elastic stator formation volume cavity can effectively reduce the abrasion when containing solid particles medium;5. Input medium viscosity of up to 50000 mpa, s solid content is 50%;6 flow proportional to speed, with the aid of governor can realize automatic adjustment of the pump can be positive and negative transfer.

三螺杆泵的优点与缺点: ①和离心泵相比螺杆泵无需安装阀门，流量是稳定的线性流动，压力和流量范围宽阔而且稳定，脉动很小。压力约在 3.4-340 Kg.N /cm ，流量可达 18600 /min，液体在泵作连续而匀速的直线运动，无搅拌现象。 ②流量与泵的转速成正比，因而具有良好的变量调节性。 ③和柱塞泵相比螺杆泵具有自吸、吸入高度强，无需装置底阀抽真空的附属设备。 ④和齿轮相比，螺杆泵可输送高粘度的物质；运送液体的种类和粘度范围宽广。 ⑤相互啮合的螺杆磨损甚少，泵的使用寿命长，一般滑油泵能使用30-40年，甚至长。 ⑥泵的振动和噪声。 ⑦因为泵内的回转部件惯性力较低，可在高转速下工作。 ⑧结构简单紧凑，拆装方便，体积小，质量轻。结构坚实，安装保养容易。 ⑨和隔膜泵相比螺杆泵可输送各种混合杂质含有气体及固体颗粒或纤维的介质，也可输送各种腐蚀性物质；对进入的气体和污物不太敏感。 ⑩和柱塞泵，隔膜泵及齿轮泵不同的是，螺杆泵可用于药剂填充和计量。The advantages and disadvantages of three screw pump: (1) there is no need to install the valve compared with screw pump and centrifugal pump, the flow is stable linear flow, and wide range of pressure and flow stability, ripple is small.Pressure about 3.4-340 Kg. N/cm, flow rate of up to 18600 / min, the liquid in the pump for continuous and uniform linear motion, no mixing phenomenon.(2) the flow is proportional to the pump speed, thus has a good regulatory variables.(3) compared with those of screw pump plunger pump self-priming capability is strong, strong suction height, without bottom valve vacuum device accessory equipment.(4) compared with gear, screw pump can transport high viscosity material;Wide range of delivery and type of liquid viscosity.(5) mutual engagement of screw little wear and tear, long service life of pump, oil pump can be used commonly 30-40 years, or longer.6. The vibration and noise of the pump.7 because the rotary inertia force component inside the pump is low, can work under high rotation speed.Was simple and compact structure, easy to tear open outfit, small volume, light quality.Solid structure, installation and maintenance easy.Pet-name ruby compared with 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;To enter a less sensitive gas and dirt.Attending and plunger pump, diaphragm pump and the gear pump, screw pump can be used in the pharmaceutical filling and metering.

缺点： ①对被输送液体中的粘度变化敏感。 ②螺杆的加工精度要求高、制造困难。Disadvantages: (1) is sensitive to the viscosity change of the liquid to be delivered.(2) screw machining accuracy requirement is high, the manufacturing difficulty.

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