三螺杆泵的适用范围广

容积式泵包括往复泵、螺杆泵和齿轮泵等，离心泵和轴流泵等则属于动力式泵。本文所研究的三螺杆泵属于容积式泵，它与离心泵、往复泵、齿轮泵、滑片泵等相比较，在某些方面具有明显的优越性。随着科技的   新月异，在某些场合，一般的泵种不在能满足场合的需求，螺杆泵的、生产就进入了一个崭新的时期。Positive displacement pump including reciprocating pump, gear pump and screw pump, centrifugal pumps and axial flow pump belong to pump power.In this paper, the author studies on three-screw pump belongs to the positive displacement pump, it has to do with centrifugal pump, reciprocating pump, gear pump, vane pump and so on, has the obvious superiority in some ways.With the national defense science and technology update, in some special occasions, the general pump can not meet the needs of special occasions, research and development, the production of screw pump have entered a new period.

螺杆泵的适用范围很广，被广泛的应用于海上平台工程、石油化工、航运、电力、机械、液压系统、食品、造纸、制糖、、医药、造船、机床、采矿、环保和污水处理等各种工业部门当中，发挥了巨大作用，具有很高的使用价值。螺杆泵特点是：流量平稳，压力脉动小，能够自吸，噪声低，，使用寿命长，工作。此外螺杆泵还具有结构简单，零件少，体积紧凑，重量轻等一系列特点。而螺杆泵在工作时   为突出的优点是输送介质时不会形成涡流、可输送粘度范围宽广的各种介质，对输送介质不敏感，既可以输送各种粘度的润滑性或腐蚀性介质，也可以输送各种粘度的非牛顿液体，特别是有的双螺杆泵还可以输送气液混合物，这对油田输送成分复杂的原油具有重要意义。毫不夸张的说，螺杆泵可以输送任何介质。目前在许多螺杆泵已经逐步取代齿轮泵、离心泵等，产生了很高的价值。Scope of application of screw pump is very wide, is widely used in maritime platform engineering, petrochemical industry, shipping, electric power, machinery, hydraulic system, food, papermaking, sugar-making, military industry, medicine, shipbuilding, machine tools, mining, environmental protection and sewage treatment and other industrial departments, played a huge role, has the very high use value.Screw pump features are: smooth flow, small pressure fluctuation, imbibition, low noise, high efficiency, long service life and reliable operation.In addition screw pump has simple structure, less parts, compact size, light weight and a series of characteristics.While the screw pump is the most prominent advantage at work when the medium won't form vortex, but the wide range of conveyor viscosity of all kinds of medium, is not sensitive to the medium, can convey various viscosity lubricity or corrosive medium, also can convey various viscosity of non-newtonian fluid, especially some double screw pump can also be conveying gas-liquid mixture and the oil conveying complicated composition of crude oil is of great significance.Literally, the screw pump can transport any medium.The screw pump in many fields has gradually replaced the gear pump and centrifugal pump, the high value.

螺杆泵按螺杆数目通常分为单、双、三和五螺杆泵，各有优缺点，在应用时   根据所需要求进行合理的选择才能充分利用其各自特点，   好的实现节能、节材、增效益或满足某种应用要求

Screw pump according to the number of screw is usually divided into single, double, three and five screw pump, each have advantages and disadvantages, the application must be reasonable choice according to the needs of the required to make full use of their respective characteristics, better implementation of energy saving, material saving, increasing benefits, or meet the requirements of a particular application