在长距渣浆泵离输油管道和油库中的应用

在长距离输油管道中，由于油品沿管道流动需要消耗一定的压力能，因此必须建输油泵站，以将油品保质、保量、安全、经济地输送到油库。输油管道的压力能耗主要有两部分，一部分用于克服地形高差，这部分损失与输量无关;另一部分是与输量有关的摩擦损失，包括油品通过直管段时的摩擦损失和通过各种阀件、管件时的摩擦损失。图0-5给出了输油管道上常见的三种输油方式。在输油管道早期，多使用“从罐到罐”的输油方式。此时油品全部通过各中间站的油罐，蒸发损耗大。后来逐步发展为“旁接油罐”，此时利用油罐调节两站间排量的差额。第三种方式则为“密闭输送”方式，上游来的输油于管直接与下站泵机组的吸入管路相连,各站泵机组直接串联工作，又称为“从泵到泵”方式。由此可知，无论何种输油方式，都需建设输油泵站，输油泵站的任务就是供给油流一定的能量。 输油泵主要分为离心泵和螺杆泵。由于离心泵具有排量大、能串联工作运行平稳以及易于维修等优点，在输油管道上得到了广泛应用。同时根据输量或输送距离
      的不同，通常采用多台商心泵并联或事联修不便，不能串联工作故不适用密闭输送流程。联的方式来实现。但螺杆泵适用于输送高黏度油品，常用于流螺杆泵与离心泵相比，构造复杂，维泛应用。同时根据输量或输送距离的不同，通常采用多台离心泵并联或串联的方式来实现。螺杆泵与离心泵相比，结构复杂，维修不便，不能串联工作，故不适用密闭输送流程。但螺杆泵适用于输送高黏度油品，常用于流量小、需要压头高的高黏油品输送。
  渣浆泵厂家  油库用来接受、储存和发放原油或石油产品的企业和单位，主要用于协调原油生产、原油加工、成品供应以及运输,油库中油品的收发和输转是依常泵和管路配合来完成的。油库中输送轻油和黏度为(4-5)x10-*m*/s以下的油品。广泛采用离心泵；输送燃料油和润滑油一般采用往复泵、齿轮泵、螺杆泵和其他形式的容积泵。此外；在油库泵房中，还用水环式真空泵所组成的真空系统使离心泵和吸入管路引油罐泵、抽吸油罐车底油以及利用虹吸作用卸油等。油库消防系统、含油污水处理系统和给水系统也需要采用离心水泵

Application in long distance slurry pump oil pipeline and oil depot

In the long-distance oil pipeline, because the flow of oil along the pipeline needs to consume a certain amount of pressure energy, so it is necessary to build an oil pump station to transport the oil to the oil depot with quality, quantity, safety and economy. The pressure energy consumption of oil pipeline mainly includes two parts: one is used to overcome the terrain height difference, which has nothing to do with the transportation capacity; the other is the friction loss related to the transportation capacity, including the friction loss when the oil passes through the straight pipe section and the friction loss when passing through various valves and pipe fittings. Figure 0-5 shows three common ways of oil transportation on oil pipelines. In the early days of oil pipelines, the "tank to tank" method was often used. At this time, all the oil products pass through the oil tanks of each intermediate station, resulting in large evaporation loss. Later, it gradually developed into a "side connected oil tank". At this time, the difference of displacement between two stations was adjusted by using the oil tank. The third way is "closed delivery". The upstream oil delivery pipeline is directly connected with the suction pipeline of the next station pump unit, and each station pump unit works in series, also known as "from pump to pump" mode. It can be seen that no matter what kind of oil transportation mode, oil transportation pump station needs to be built. The task of oil transportation pump station is to supply certain energy for oil flow. The oil delivery pump is mainly divided into centrifugal pump and screw pump. Centrifugal pump is widely used in oil pipeline because of its large displacement, stable operation in series and easy maintenance. At the same time, according to the transportation capacity or distance

Because of the difference, it is usually inconvenient to use multiple commercial pumps in parallel or in joint repair, so it is not suitable for closed conveying process. The way to achieve. However, the screw pump is suitable for the transportation of high viscosity oil products. Compared with the centrifugal pump, the screw pump is usually used for its complicated structure and extensive application. At the same time, according to the different transmission capacity or transmission distance, multiple centrifugal pumps are usually used in parallel or series. Compared with centrifugal pump, screw pump has complex structure, inconvenient maintenance and can not work in series, so it is not suitable for closed conveying process. However, the screw pump is suitable for the transportation of high viscosity oil products. It is commonly used for the transportation of high viscosity oil products with small flow and high pressure head.

The enterprises and units in the oil depot of slurry pump manufacturers are used to receive, store and distribute crude oil or petroleum products. They are mainly used to coordinate crude oil production, crude oil processing, supply and transportation of finished products. The receiving, dispatching and transmission of oil products in the oil depot are completed with the cooperation of pumps and pipelines. Light oil and oil products with viscosity below (4-5) X10 - * m * / s are transported in the oil depot. Centrifugal pump is widely used; reciprocating pump, gear pump, screw pump and other forms of positive displacement pump are generally used to transport fuel oil and lubricating oil. In addition, in the pump room of the oil depot, the vacuum system composed of the water ring vacuum pump enables the centrifugal pump and the suction pipeline to lead the oil tank pump, draw the oil at the bottom of the oil tank and use the siphon function to discharge the oil. Centrifugal pumps are also required for the fire fighting system, oily sewage treatment system and water supply system of the oil depot