Refrigerated low-temperature liquid circulation equipment is used to mechanically cooperate with vacuum freeze-drying ovens, magnetic stirring, vacuum pumps and other instruments for drug storage and multi-functional chemical reaction operations at low temperatures.
How Cryogenic Circulation Pump Works
1. In the pump body filled with liquid, due to the high speed of the motor, the liquid in the pump is rotated by the pump impeller and discharged from the outlet pipe under the action of centrifugal force.
2. Control temperature cooling by mechanical means. The low temperature circulating pump can control the experimental temperature range, and the intelligent system calculates the cooling capacity, and then outputs the output to cool the temperature of the liquid according to the needs of the working temperature range.
Analysis of the working principle of low temperature circulating pump
When the circulating pump is working, it is a process in which the impeller keeps rotating - the liquid enters continuously from the water inlet pipe - passes through the pump body - and is discharged from the discharge port of the pump. Next, we will conduct a more detailed analysis of the workflow of the circulating pump.
1. The impeller drives the rotation of the water. First, the pump must be filled with water before use. Then, under the high-speed rotation of the electric motor, the impeller of the pump is driven to rotate at a high speed. Therefore, under the centrifugal force of the pump body, the water in the impeller is thrown out of the surrounding and discharged from the outlet pipe and flows into the pool.
2. A vacuum is formed near the water discharge shaft. After the water in the impeller is expelled from the pipe, a vacuum is created near the axis of rotation inside the pump casing. At this time, the internal pressure is lower than the external pressure, and the water enters the pump body from the suction pool under the action of the pressure difference and fills up again.
In summary, the working principle of the circulating pump can be regarded as the energy generated during the circulation of water under the action of pressure. Originally, when the pump is filled with water, the rotation of the impeller will generate centrifugal force.
When the pressure in the center of the impeller drops due to centrifugal force, the water in the water inlet pipe is forced into the pump to fill the vacuum under the action of the external pressure. Under the action of the pressure difference, the water flows from the suction tank into the impeller, forming the effect of the pump continuously absorbing water and continuously supplying water.
If the flow of energy is not considered, in physics, as long as the impeller keeps rotating, the water will flow continuously from the tangential direction to the water inlet pipe, be discharged through the pump outlet, and then return to the pump again. This completes the entire workflow of the circulating pump.
In the same way, when the low-temperature cooling liquid circulating pump is in working state, the built-in circulating pump pumps the low-temperature liquid in the tank to the experimental device that needs to be cooled, and then the low-temperature liquid returns to the low-temperature tank for cooling, and it is continuously circulated and cooled in this way.