What are the structure and characteristics of centrifugal oil pump

what are the structure of centrifugal oil pump, what are the characteristics of centrifugal oil pump

the general structure of the centrifugal pump is more, a single-stage single-suction, single stage double suction cantilever structure; Levels there are also two single suction, two double suction at both ends of the supporting structure; And multi-stage sectional structure. Their internal structure and the corresponding general centrifugal pumps is approximately the same, but they generally have the following features:

1) In order to reduce the influence of temperature on the pump shaft, bearing water pump body, is mostly in the center. For some of conveying high temperature oil pump, in order to prevent pumps in operation due to thermal expansion and eccentric move or stuck, generally in the bottom of the pump is equipped with positioning of the slide guide.

2) According to different conveying liquid temperature and degree of corrosion, the pump cover, pump body and impeller main parts adopt three kinds of materials such as:

category 1 for cast iron, no corrosion resistance, temperature is a 20 ~ 200 ° c.

2 classes for cast steel, corrosion resistance, temperature is a 45 ~ 400 ℃.

class 3 for alloy steel, medium sulfur corrosion resistance, the use of temperature for a 45 - 400°C。

3) Shaft sealing device adopts packing seal and mechanical seal. General packing chamber length is longer, some containing water seal on the packing gland, most of the oil seal device. To oil seal oil seal device access to oil lubrication and cooling. In order to avoid the collision sparks, metal shaft sealing device within the gland are usually equipped with a copper ring round.

4) Stuffing box, bearing, bearing is generally equipped with cooling structure for cooling.

5) Oil inflammable, in order to prevent fire, explosion-proof motor USES mostly prime mover.

centrifugal oil pump according to the flow of different oil temperature, oil pump can be divided into cold ( Temperature is below 200 ℃) And the heat conduction oil pump ( Temperature higher than 200 ℃) ； According to the structure and the use of different occasions, can be divided into general self-priming centrifugal pump, horizontal explosion-proof oil pump and pipeline pump, etc.

other pump products can access pump catalogue to see to understand.

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