Introduction to mixed flow pump

1、 Type of mud flow pump
Mixed flow pump is a kind of pump between centrifugal pump and axial flow pump. Its lift is suitable
Medium. With large flow and wide application scope, it is a good pump type in plain river network areas and hilly areas.
According to the difference of outlet chamber of gear pump, diaphragm pump has volute type and guide vane type.
The volute type mixed flow pump can be divided into horizontal type and vertical type, among which the horizontal type is more widely used; Guide vane mixing
There are also two types of sulfur pumps: horizontal and vertical. The vertical mixed flow pump is similar to the vertical axial flow pump
Medium and small mixed flow pumps, most of which are of chip expansion volute type, and large mixed flow pumps are of guide vane type.
Like axial flow pump, the pr plate of mixed flow pump is generally fixed, but large guide vane mixed flow pump
The blade pairs of are made into fully adjustable ones. According to the needs of operation, the blade can be adjusted at any time
Installation angle to expand its high efficiency operation range.
2、 Structure of mixed flow pump
Compared with centrifugal pump and axial flow pump, mixed flow pump has low lift and large flow, so the impeller
The shape is quite special. Since the difference between the inlet diameter and the outlet diameter of the impeller is small, the flow passage
The ratio of width to outlet diameter is relatively large, so the relative width of volute is greater than that of centrifugal pump
Large. The blade is in a throw curve form from the inlet to the outlet, and the edge of the blade outlet is inclined, resulting in
Centrifugal force and thrust, the direction of water flowing out of the impeller is neither radial (such as centrifugal force
Pump) is not axial (such as uranium flow pump), but is inclined between them, so mixed flow pump
Also called diagonal flow pump. The shape of the mixed flow system impeller is shown in Figure 5. Low specific speed impeller
It is closed, with front and rear cover plates, similar to the impeller of centrifugal pump; High specific speed. L round is open
Type, similar to axial flow pump.

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