渣浆泵的基础知识泵的分类及型号

第一节泵的分类及型号
一、 泵的定义
    泵是一种抽送液体或增加液体能量的机器，即把原动机的机械能变为液体能量的机器统称为泵。

二、泵的分类

按其作用原理，可将泵分为三大类，如图2-1所示。
1.叶片式泵
    它是利用旋转叶 轮的叶片和液体相互作用来输送液体或增加液体的能量。主要有离心泵、混流泵、轴流泵和旋涡泵等。其特点是流量大、扬程较低、体积较小。这其中旋涡泵为小流量高扬程泵;混流泵和轴流泵为大流量低扬程泵;离心泵介于它们之间，使用范围最为广泛。
2.容积式泵
    它是利用工作室容积周期性变化来输送液体或增加液体的能量。如往复泵(活塞泵) (图2-2)、柱塞泵、隔膜泵、转子泵(图2-3)、齿轮泵(图2-4)、螺杆泵(图2-5)等。其特点是流量小、扬程高、体积大。
3.其他类型泵
    是利用流体能量来输送液体的泵，如射流泵(图2-6)、 水锤泵(图2-7)。
    图2-8表示了各种类型泵的使用范围。从图中可以看出， 离心泵所占的区域最大，使用也最为广泛。其流量在5 ~ 20000m3/h;扬程在8 ~2800m的范围内。渣浆泵厂家

Basic knowledge of slurry pump classification and model of pump

Section I classification and model of pump

I. definition of pump

Pump is a kind of machine that pumps liquid or increases liquid energy, that is, the machine that transforms the mechanical energy of prime mover into liquid energy is called pump.

II. Classification of pumps

According to its principle of action, pumps can be divided into three categories, as shown in Figure 2-1.

1. Vane pump

It uses the interaction between the blades of the rotating impeller and the liquid to deliver the liquid or increase the energy of the liquid. It mainly includes centrifugal pump, mixed flow pump, axial flow pump and vortex pump. It is characterized by large flow, low head and small volume. Among them, the vortex pump is a small flow high head pump; the mixed flow pump and the axial flow pump are large flow low head pumps; the centrifugal pump is between them and the most widely used.

2. Positive displacement pump

It uses the periodic change of the volume of the working room to deliver liquid or increase the energy of liquid. For example, reciprocating pump (piston pump) (Figure 2-2), plunger pump, diaphragm pump, rotor pump (Figure 2-3), gear pump (Figure 2-4), screw pump (Figure 2-5), etc. It is characterized by small flow, high head and large volume.

3. Other types of pumps

It is a pump that uses fluid energy to deliver liquid, such as jet pump (Fig. 2-6) and water hammer pump (Fig. 2-7).

Figure 2-8 shows the range of use of various types of pumps. As can be seen from the figure, centrifugal pumps occupy the largest area and are most widely used. Its flow is 5 ~ 20000m3 / h, and its lift is 8 ~ 2800m. Slurry pump manufacturer