Two Factors Affecting the Working Efficiency of Mini Vacuum Pump

I believe you all know that the efficiency of the micro vacuum pump is affected by mechanical loss and flow loss. The efficiency of the micro vacuum pump is believed to be a key indicator to measure the performance of the air pump. During the normal operation of the pump, the effective power of the air pump cannot reach the shaft. After careful analysis and research, we can know that this is mainly because there is energy loss in the energy process of the air pump, which is mainly caused by mechanical loss, fluid loss and flow loss. Below Cinhpump will share with you two factors that affect the efficiency of the micro vacuum pump.

1. The influence of air pump equipment selection on air pump efficiency

   • The first part is the influence of the selection of the miniature vacuum pump model on the efficiency of the air pump. When selecting the air pump model, the flow rate of the pump is generally selected by the maximum air consumption to reach the most unfavorable air pressure point, and the pump head is selected. Although this type of selection has played a good role in alleviating the air supply in the case of airflow changes, in daily life use, this type of situation is more common, which will cause the micro vacuum pump to be at the operating point of the pump. Middle is not a high-efficiency zone, when the pump head and pump pressure are coordinated. The general performance is that the gas volume is small, the head is high, but the residual pressure of the pump is large, which causes the waste of electric energy, the gas volume is large, the pump head is low, but the pump efficiency is low. At the same time, the pump is also easy to shut down, which may cause the motor to burn, and the normal operation of the air pump will bury a safety hazard.

2. The influence of the number of working pumps on pump efficiency

   • In order to ensure that the miniature vacuum pump achieves the most ideal working condition, it is necessary to meet the requirements of process design in the number of air pumps. It is better to use a small number of large air pumps than to choose a large number of smaller air pumps. The basic reason is that the use of high-power air pumps with a small number of micro-vacuum pumping stations on the one hand can reduce the pump room equipment and construction costs, on the other hand, it can also ensure that it is the most effective air pump in the case of energy consumption. Relevant facts show that for the air pump house of the same design scale, a small number of large air pumps are selected than the number of units, and the efficiency of the selected pumps is relatively small. Therefore, in order to meet the air supply process design requirements and the prerequisite of determining the pattern of air pumps, try to minimize the parallel connection The number of pumps improves efficiency. Therefore, the number of miniature vacuum pumps should be economical and technically determined.

All in all, the main content of the equipment loss of the micro vacuum pump includes the friction loss between the micro pump packing, the bearing and the pump shaft, and the wheel rotation and air friction loss. In the filling process of the easy-to-use miniature vacuum pump, the pressure value of the pump packing is different, and the equipment operation of the parts will accelerate the collision between the degree of wear of the mechanical parts. If the equipment is working for a long time, the lubricant on the bearing surface will disappear and the wear of the bearing will be enlarged. At the same time, the standard lubricant will be used to protect the bearing. There may be rusty bearings, which can withstand greater damage.