What are the structure and characteristics of centrifugal oil pump?
Release time:
Aug 31,2022
What are the structure and characteristics of centrifugal oil pump?
Answer: Generally, centrifugal oil pumps have many structural forms, including single-stage single-suction and single-stage double-suction cantilever structures; two-stage single-suction and two-stage double-suction support structures at both ends; and multi-stage segmented structures. formula and other structural forms. Their internal structure is roughly the same as the corresponding general centrifugal pumps, but they generally have the following characteristics:
1. In order to reduce the influence of temperature on the pump shaft, the support of the pump body is mostly in the center. For some oil pumps with high conveying temperature, in order to prevent the eccentric movement or jamming of the pump due to thermal expansion during operation, there are generally positioned sliding guides at the bottom of the pump.
2. According to the different temperature and corrosion degree of the conveyed liquid, three types of materials are used for main parts such as pump cover, pump body and impeller.
The first category is cast iron, which is not resistant to corrosion, and the operating temperature is -20~200℃.
The second category is cast steel, which is not resistant to corrosion, and the operating temperature is -45~400 °C.
The third category is alloy steel, which is resistant to medium sulfur corrosion, and the operating temperature is -45~400 °C.
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