Air pump includes dry screw vacuum pump, water ring pump, piston vacuum pump and diffusion vacuum pump. In recent years, with the sustained and high-speed development of China’s economy, the downstream application industry related to vacuum pump has maintained a rapid growth momentum.
The vacuum drying oven has requirements for the materials to be dried. One is that it cannot contain a large amount of water; the other is that it cannot contain organic compounds; the colleagues who are vacuuming will be pumped into the body, resulting in a series of adverse reactions, affecting the service life of the vacuum pump. If the material contains water or organic solvent, liquid water filter and condenser should be added to play a filtering role.
When we use the vacuum drying oven, we must also strengthen the maintenance of the vacuum pump, timely change the oil to the vacuum pump, and extend its service life.
Vacuum pump is a kind of common and commonly used vacuum pump in many pump products. It is a kind of device to improve, generate and maintain vacuum in a closed space by mechanical, physical, chemical or physical chemical methods. It has a wide range of applications in metallurgy, chemical industry, food, electronic coating and other industries. What are the areas between it and ordinary pumps Why not?
The main feature of vacuum pump is that it can form a vacuum, which can be seen from its name. This is what ordinary pump can’t do, which is the main difference between the two. The vacuum pump relies on a rotating wheel. It rotates in the chamber, and the chamber is filled with fluid. The volume of the rest of the cavity will change periodically under the periodic change of the volume of the fluid, and the gas in the suction pipe will be discharged and inhaled. The most common vacuum pumps are dry screw vacuum pump, water ring pump, piston pump and diffusion pump.
The next thing to say is the ordinary vacuum pump. Depending on the centrifugal force, the centrifugal pump will throw out the fluid and form a negative pressure at the same time. Then other fluid will continuously enter the vacuum pump body under its attraction. The driving of the vacuum pump wheel to convert the kinetic energy and potential energy of the fluid is completed by consuming the electric energy of the motor.
Vacuum pumps and ordinary pumps have their own characteristics and uses. I believe that with the continuous promotion of science and technology, they will develop better. Working principle of liquid ring pump in foreign countries, the sales volume of liquid ring pump accounts for 14% of the total vacuum pump market, second only to dry pump.
Piston vacuum pump
Because the piston pump is more durable and reliable, all kinds of vacuum furnaces, coating machines, drying, impregnation and other equipment at home and abroad use the piston pump as the pre-stage vacuum pump. The working principle of the piston pump is heavy casting and large processing workload, so foreign vacuum factories are looking for partners in China. In order to make the domestic piston pump enter the international market, it is necessary to further reduce the vibration and noise of the vacuum pump, put an end to fuel injection and oil leakage, and improve the reliability of the long-term operation of the piston pump.
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