I. Structural Characteristics of Centrifugal Pumps
The structure of centrifugal pump is characterized by: in a volute-shaped pump case, an impeller which can rotate rapidly is installed in the blade.
There are 2 to 8 blades on the wheel. There are two interfaces on the pump housing, the inlet leading to the center of the impeller is connected with the suction pipeline; in the pump.
The tangent of the shell is the same as the outlet, which is connected with the discharge pipe, as shown in Figure 1-12.
The main working part of centrifugal pump is impeller. Secondly, the suction chamber, pump body (pump shell), pump cover and shaft encapsulation device (miserable)《
And packing gland or mechanical seal, axial force balance device, bearing, coupling, bracket, extrusion chamber, etc. When impeller canopy I
At this time, the liquid can be continuously inhaled from the inhalation mouth, discharged from the discharge port, and the liquid produces pressure and discharges to high places:
Structure and Composition of Centrifugal Pump
Commonly used centrifugal pump products are as follows
IS Single Stage Single Suction Centrifugal Pump
ISG Vertical Single-stage Pipeline Centrifugal Pump
ISW Type Direct Connection Single Stage Horizontal Centrifugal Pump
QDL Stainless Steel High-lift Multistage Centrifugal Pump
IH type stainless steel centrifugal pump for chemical industry
IHF acid-resistant lining fluorine chemical centrifugal pump
II. Working Principle of Centrifugal Pump
Before starting, the liquid should be filled from the funnel into the pump housing and suction pipeline. When the impeller rotates rapidly, the liquid in the impeller rotates with the impeller impeller impeller impeller impeller impeller impeller impeller impeller impeller impeller impeller impeller impeller impeller impeller impeller impeller impeller impeller impeller impeller impeller impeller impeller impeller impeller impeller impeller impeller impeller impeller impeller impe When the liquid flows to the diffuser, because the cross-section area of the liquid flow is gradually enlarged and the flow velocity is slowed down, a part of kinetic energy is transformed into a static energy head, so that the pressure rises, and finally the pressure is extruded from the discharge pipe. At the same time, due to the liquid being thrown out in the center of the impeller, a local vacuum is generated, so the liquid in the suction tank is continuously sucked into the pump from the suction pipe under the action of liquid pressure. The impeller rotates continuously, and the liquid is continuously sent from the suction tank to the high groove or pressure vessel.
Centrifugal pump can transport liquid by means of high-speed rotating impeller to make the liquid subject to centrifugal force, so it is called centrifugal pump.
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