Double-motor two-stage boosting centrifugal pump

Abstract

The invention discloses a double-motor two-stage boosting centrifugal pump which includes a pump body, the pump body comprises a base plate, a pump housing, pump covers, a centrifugal impeller and a driving motor, the pump housing is fixedly installed in the middle of the upper end face of the base plate, the driving motor comprises a primary driving motor and a secondary driving motor, the primary driving motor and the secondary driving motor are respectively arranged on the left and right sides of the pump housing, the inner two sides of the pump housing are respectively provided with a primary boosting bin and a secondary boosting bin. The primary boosting bin and the secondary boosting bin are vertically provided with the centrifugal impeller. An impeller drive shaft penetrates throughthe center of the centrifugal impeller, and the impeller drive shaft is derived from the left and right side walls of the pump housing. In the manner described above, the present invention enables the centrifugal pump to have a multi-stage pressurization function, and reduces pressure loss of the liquid in the conduction channel between the two-stage boosting structures.

Description

technical field [0001] The invention relates to the field of water pumps, in particular to a dual-motor, two-stage supercharging centrifugal pump. Background technique [0002] A water pump is a machine that transports or pressurizes a liquid. It transmits the mechanical energy of the prime mover or other external energy to the liquid to increase the energy of the liquid. It is mainly used to transport liquids including water, oil, acid and alkali, emulsions, and suspoemulsions. Compared with liquid metal, the main difference between water pumps is that the head of the pumped water pressure is different. For the needs of the fire protection field, the water pump needs to have enough pump water head to deal with the fire extinguishing situation of high-rise buildings. In the case of limited motor power Under normal circumstances, it is the most common method to increase the water pressure by using the multi-stage pressurization structure inside the pump body, and the multi-st...

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Problems solved by technology

[0002] A water pump is a machine that transports or pressurizes a liquid. It transmits the mechanical energy of the prime mover or other external energy to the liquid to increase the energy of the liquid. It is mainly used to transport liquids including water, oil, acid and alkali, emulsions, and suspoemulsions. Compared with liquid metal, the main difference between water pumps is that the head of the pumped water pressure is different. For the needs of the fire protection field, the water pump needs to have enough pump water head to deal with the fire extinguishing situation of high-rise buildings. In the case of limited motor power Under normal circumstances, it is the most common method to increase the water pressure by using the multi-stage pressurization structure inside the pump body, and the multi-stage booster pump is due to the defects of the liquid flow channel structure in the process of passing the pressurization chamber of each stage , will lead to multiple impacts between the fluid and the pump casing, resulting in water pressure loss, and improving the flow channel structure inside the pump body can effectively solve the problem of internal water pressure loss

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