Impeller used for marine centrifugal pump

Abstract

The invention discloses an impeller used for a marine centrifugal pump. The impeller comprises a wheel disc. A mounting hole is formed in the circle center of the side surface of the wheel disc, and mounting grooves are formed in the inner side surface of the mounting hole; eight sliding grooves are evenly formed in the peripheral side surface of the wheel disc, sliding blocks are slidably connected in the sliding grooves, and the section shapes of the sliding grooves and the section shapes of the sliding blocks are both in T shapes; blades are arranged on the side surfaces of the sliding blocks; fixing devices corresponding to the sliding blocks are arranged on the peripheral side surface of the wheel disc; eight fixing blocks are evenly arranged on the peripheral side surface of the wheel disc; and the eight fixing blocks and the eight sliding grooves are arranged at equal angles. According to the impeller used for the marine centrifugal pump, the separated blades are adopted, the blades of different types can be conveniently mounted according to the use requirement, the blades are convenient to replace when damaged in the using process, overall replacement of the impeller is notneeded, resource waste and the economic loss are reduced, and energy saving and environmental protection are facilitated.

Description

Technical field [0001] The invention relates to the technical field of centrifugal pumps, in particular to an impeller for marine centrifugal pumps. Background technique [0002] Centrifugal pump refers to a pump that transports liquid by the centrifugal force generated when the impeller rotates. Centrifugal pumps work by using the rotation of the impeller to make water produce centrifugal movement. Before the water pump is started, the pump casing and suction pipe must be filled with water, and then the motor is started, so that the pump shaft drives the impeller and water to make high-speed rotation. The water undergoes centrifugal movement and is thrown to the outer edge of the impeller. The channel flows into the pressurized water pipeline of the water pump. [0003] Centrifugal pumps can be widely used in electric power, metallurgy, coal, building materials and other industries to transport slurry containing solid particles. Such as hydraulic ash removal in thermal power pl...

AI Technical Summary

Problems solved by technology

The mud pump and the submerged centrifugal pump are limited by the structure, the motor needs to be placed above the water surface during operation, and the pump must be fixed when it is put into the water, otherwise, the motor will be scrapped if it falls into the water

Moreover, since the length of the long axis is generally fixed, the installation and use of the pump are more troublesome, and the application occasions are subject to many restrictions.

[0004] Most of the existing impellers used in marine centrifugal pumps are fixed one-piece, and different types of blades cannot be conveniently installed according to the needs of use, and when the impeller blades are damaged, they need to be replaced as a whole, resulting in a waste of resources. With cleaning function, inconvenient to use

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