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As a kind of modern industrial and agricultural production, scientific research, national defense and other industries and equipment, we usually call the vacuum pump which is powered by mechanical power equipment. When the vacuum pump is used in industrial production, the operating performance of the vacuum pump will be gradually reduced due to various faults, thus reducing its continuous operation cycle and affecting its life cycle. In addition, the vacuum pump itself design defects and not too standard installation and operation, resulting in the vacuum pump often bearing high temperature, bearing box fracture and other issues, greatly reducing the continuous operation cycle of the vacuum pump, so the vacuum pump maintenance personnel often have to work overtime to repair and improve, which not only reduces the operating efficiency of the vacuum pump, but also greatly increases the production of finished products.

In fact, we can do some simple ways, such as innovating the equipment, guiding the operators to use the equipment in a standardized way, regular maintenance and inspection of the equipment, regular lubrication of the equipment, and the application of new technologies to improve the operating performance of the vacuum pump and extend the life cycle of the vacuum pump.

1、 Design and manufacture of reliability

Reliability design and manufacturing is very important, because once there are congenital design defects, it will seriously affect the performance and life cycle of vacuum pump. Reliability design and manufacturing, eliminate the occurrence of equipment congenital defects, not only can meet the needs of production, but also can make the vacuum pump run for a long time, thus saving maintenance costs.

2、 Correct installation, commissioning and professional operation of vacuum pump

Before the installation and trial operation of vacuum pump, the design requirements of vacuum pump should be carefully studied, especially some matters needing attention in the manual. Do not completely rely on your own experience for installation and trial operation. For example, we should pay attention to the following points before driving:

1. Choose appropriate installation height to prevent cavitation;

2. All the foreign matters on the vacuum pump should be removed before starting;

3. Before connecting the coupling, check carefully whether the rotation direction of the motor is consistent with the design direction of the vacuum pump. In the same operation process, the following points should be paid attention to:

Strengthen patrol inspection, monitor whether there is obvious impact, friction and other abnormal noise during operation;

Check whether the peak value of motor running current exceeds the rated value;

Check whether the inlet and outlet pressure exceeds 5% of the rated value;

Check whether the temperature of lubricating oil is too high;

Note that the vibration detection of vacuum pump is carried out according to the provisions of gb10889-89. Therefore, the correct installation and trial operation of vacuum pump is very important.

Careful operation is also important. Therefore, it is necessary to strengthen the theoretical knowledge learning of vacuum pump for post operators, so that they can master the correct steps of starting, switching and stopping the pump. The correct operation of some auxiliary systems such as preheating and flushing is also important. Although the dynamic range of the pressure head and flow of the vacuum pump is wide, it is also necessary to avoid the operation of the vacuum pump under the condition of long-term evacuation, low flow, pressure holding or overload, which will not only easily cause the fatigue fracture of the pump shaft, but also reduce the efficiency of the vacuum pump and increase the energy consumption.

3、 Regular maintenance and predictive maintenance of vacuum pump

Any mechanical device has a certain life. A complete vacuum pump is composed of many parts. Therefore, the failure of vacuum pump is extremely inevitable. Just as our private car needs regular maintenance and regular predictive maintenance every year, in order to improve the operation performance of vacuum pump and extend the life cycle of vacuum pump, it is necessary to carry out regular predictive maintenance on vacuum pump. Before failure occurs, check and remove potential hidden trouble, which will greatly improve its service life.

According to relevant research reports, in the past decade, many large enterprises at home and abroad have organized vacuum pump maintenance workers to carry out regular maintenance and predictive maintenance on their devices. On the one hand, because predictive maintenance is before the vacuum pump failure, the location and cause of the failure can be determined after careful inspection, so that the vacuum pump maintenance can be carried out at the best time, so as to maximize the benefits of the whole device. On the other hand, through the way of maintenance in advance, we can reduce the loss caused by the vacuum pump failure.

We know that many factors may cause the failure of vacuum pump, but if we can fully understand these factors, from the improvement of the original design of vacuum pump, the standard installation, trial operation and operation of vacuum pump to regular maintenance, predictive maintenance and other aspects, it will be able to greatly improve the operating performance of vacuum pump, and then extend the vacuum Pump life cycle.