Centrifugal pump to use matters needing attention

Centrifugal pump is a vane pump, rely on rotating impeller in the process of rotation, due to the interaction of the blade and liquid, the blade will be mechanical energy transfer to the liquid, so that the liquid pressure can be increased to achieve the purpose of transporting liquid . Centrifugal pump to start to pay attention to four points: Centrifugal pump should pay attention to matters â‘  Centrifugal pump at a certain speed has a limited value of the head. Operating point flow and shaft power depend on the condition of the system of the system connected to the pump (potential difference, pressure difference and line loss). Head changes with the flow. â‘¡ work stable, continuous flow and pressure delivery without pulsation. â‘¢ generally no self-absorption capacity, the need to pump the first filled with liquid or pipe pumping to a vacuum before starting work. â‘£ centrifugal pump in the discharge line valve is closed under the start, the vortex pump and axial pump in the valve fully open state to reduce starting power. Because the centrifugal pump is formed by the impeller centrifugal force to lift the vacuum suction, so the centrifugal pump starts, you must first close the gate valve, irrigation. Above the water level above the impeller, discharge the air in the centrifugal pump before starting. After start-up, a vacuum is formed around the impeller and the water is sucked upward. Its gate valve can be opened automatically and the water can be lifted. Therefore, the valve must be closed first. (Original title: The use of centrifugal pump is to remember that Matters) [Editor's note] It is reported that the centrifugal pump is the use of impeller rotation and centrifugal motion of water to work. Before starting the pump, the pump housing and the suction pipe must be filled with water, and then start the motor so that the pump shaft drives the impeller and water to do high-speed rotation movement. Centrifugal movement of the water occurs and is thrown to the outer edge of the impeller and flows through the scroll casing Road into the pump pressure water pipeline.

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