Idling-resistant centrifugal water pump with high water effluence rate

Abstract

The invention discloses an idling-resistant centrifugal water pump with high water effluence rate. The idling-resistant centrifugal water pump comprises a pump body, a mechanical seal and a motor, wherein the mechanical seal is positioned between the pump body and the motor; two ends of the mechanical seal are respectively and fixedly connected with the pump body and the motor; a cooling fixed ring is arranged in the mechanical seal, is positioned between the mechanical seal and the motor, is fixedly connected with the mechanical seal; the pump body comprises a water pump shell and an impeller; the impeller is positioned in the center of the pump body and is fixedly connected with the mechanical seal; the water pump shell is positioned at the periphery of the impeller; disturbed flow blocks are arranged on one side facing the impeller and are fixedly connected with an inner wall of the water pump shell; a quick flow channel is arranged between the disturbed flow blocks; and the quick flow channel communicates with an inner space of the pump body. According to the idling-resistant centrifugal water pump with high water effluence rate provided by the invention, and current-limiting orbit is provided for water, so that the mechanical seal is cooled during idling of the water pump while the water effluence rate under same power is improved, the heat energy produced by high-speed running is transmitted, and the service life of the centrifugal water pump is effectively improved.

Description

technical field [0001] The invention relates to a centrifugal water pump, in particular to an idling-resistant centrifugal water pump. Background technique [0002] Centrifugal water pump is a kind of machine that conveys fluid or increases the pressure of fluid. By adopting centrifugal method to increase the speed of fluid, the speed of fluid leaving the impeller can be increased. When using it, it is necessary to inject a certain amount of liquid into the pump, and when the impeller rotates, it passes through the high-speed impeller. The centrifugal speed throws the liquid out, so as to achieve the purpose of pumping water. [0003] During this process, the motor drives the impeller to rotate at high speed. The mechanical seal used in the water pump is used to seal the water pump to prevent water leakage. During the high-speed rotation of the impeller, the rotating ring and fixed ring in the water pump will generate extremely high temperatures. When pumping liquid, the li...

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Problems solved by technology

[0003] During this process, the motor drives the impeller to rotate at high speed. The mechanical seal used in the water pump is used to seal the water pump to prevent water leakage. During the high-speed rotation of the impeller, the rotating ring and fixed ring in the water pump will generate extremely high temperatures. When pumping liquid, the liquid will take away the heat generated, but once there is a shortage of water, that is, when the pump is idling, it will burn out the mechanical seal in the pump, resulting in water leakage from the pump and affecting the service life of the pump

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