When the low-temperature circulation pump of China Pharmaceutical Industry Network is in operation, due to the continuous rotation of the impeller, the liquid continuously enters the inlet pipe, passes through the pump body, and is discharged from the pumps tapping port

First of all, let us talk about the working mode of the equipment inside the pump body. When the pump is in use, it first fills the pump body with water. Under the high-speed rotation of the electric motor, it drives the pump impeller to rotate at high speed, so the water in the impeller also rotates. Under the centrifugal action of the pump body, the liquid is discharged through the outlet pipeline. After the water is discharged, a vacuum is formed near the rotating shaft inside the pump casing

When the pump is filled with water, centrifugal force is generated when the impeller rotates. The decrease in pressure at the center of the impeller is due to the water in the impeller groove being thrown towards the surrounding periphery and flowing into the pump casing under the action of centrifugal force. This pressure is generally lower than the pressure inside the steam inlet pipe, and the water flows into the impeller from the suction pool under this pressure difference. This allows the pump to continuously absorb water and supply water. The water in the inlet pipe is under the action of external pressure, It is pressed into the spring to fill the vacuum, so as long as the impeller keeps rotating, water will continuously flow from the inlet tangent direction to the inlet pipe and be discharged through the pump outlet

This completes the entire workflow. The low-temperature circulation pump adopts a low-temperature liquid circulation equipment that is mechanically cooled. The machine is equipped with a vacuum freeze-drying oven, a circulating water type multi-purpose vacuum pump, magnetic stirring, and other instruments to perform multi-functional chemical reaction operations and drug storage at low temperatures. It has the function of providing low-temperature liquid and low-temperature water bath