Flexible impeller sea water pump

Abstract

The invention relates to a water pump, in particular to a flexible impeller sea water pump. The flexible impeller sea water pump comprises a pump body, a water inlet is formed in the bottom of the pump body, a water outlet is formed in the top of the pump body, an impeller shaft and a flexible impeller arranged on the impeller shaft are arranged in the pump body, an end cover is arranged on the pump body, partition plates capable of adjusting the axial compression amount of an impeller are arranged at the two ends of the impeller, two annular grooves are arranged on potions, in a water inlet end area of the water pump, of the partition plates, the grooves respectively communicate with the root and the top of an impeller blade fin groove, fan-shaped grooves are formed in the back of the partition plates, namely in the pump body and the cover plate respectively to communicate the two annular grooves in the partition plates, and the annular groove in the tops of the partition plates directly communicates with a water inlet of the water pump. The invention aims to provides the flexible impeller sea water pump, the communicating grooves are additionally formed in the partition plates atthe two ends of the impeller, the water inlet of the water pump communicates with the root of the the impeller blade fin groove under the condition that no centrifugal force influence exists, and fluid at the water inlet is introduced into the root of the blade fin groove with negative pressure generated caused by the centrifugal force influence, so that the flow output and efficiency of the seawater pump are improved.

Description

technical field [0001] The invention relates to a water pump, in particular to a sea water pump with a flexible impeller. Background technique [0002] The flexible impeller seawater pump includes a pump body, an impeller shaft wheel set in the pump body, and an impeller set on the impeller shaft. The pump body is provided with a cover plate, and the impeller is a rubber impeller. The main principle is that the rubber impeller is placed in the pump body. , The rubber impeller rotates through gears. During the rotation of the impeller, the water in the water inlet is pressed out of the seawater pump to realize circulating water supply. [0003] The impeller is elastic because it is a rubber impeller. Under the action of water pressure, there will be a large gap between the blade fin and the pump body, and the gap will generate a large flow rate, which will be transmitted to the end of the closed blade fin and finally form a large leak, causing the water pump to leak. Insuffi...

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Problems solved by technology

[0003] The impeller is elastic because it is a rubber impeller. Under the action of water pressure, there will be a large gap between the blade fin and the pump body, and the gap will generate a large flow rate, which will be transmitted to the end of the closed blade fin and finally form a large leak, causing the water pump to leak. Insufficient performance, for this defect, the present invention proposes an improvement

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