As early as 1640 AD, the first (mechanical) vacuum pump made in Germany is the originator of all modern air compression machinery. Today, with the improvement of technology, air compressors have been busy in all walks of life. For example, we often come into contact with food, tobacco and other metallurgy, petrochemicals, chemical fibers, pharmaceuticals, etc.
Top1 twin-screw compressor development history
Around 1878, the German H. Krigar first proposed a screw compressor without internal compression, which was the birth of the first prototype, followed by the first patent of A. Lysholm, the chief engineer of the SRM factory, in 1934. Emergence, the principle of asymmetric toothed twin-screw compressor, the design of the screw compressor and its rotor tooth.
In the 1930s, the world's first single-machine oil-displaced rotary screw compressor was put into practical use. In 1961, the oil-injected screw refrigeration compressor and the screw process compressor were successfully developed.
The screw machine developed first in history is the oil-free screw compressor. "Oil-free" means that the gas does not contact oil at all during the compression process, that is, there is no oil lubrication between the compression chamber or rotor of the compressor, but the bearings, gears and other components in the compressor are still lubricated by ordinary methods It is lubricated, but the oil is separated by an effective isolation shaft seal.
There are also oil-injected screw compressors, which play the roles of lubricating, sealing, cooling and reducing noise when a large amount of lubricating oil is injected into the compressed gas medium. In the oil-injected air screw compressor, the output compressed air contains oil. In some applications, the development of oil-gas separation and gas purification technology can fully meet the requirements of oil-free or micro-oil through filtration.
Top2 single screw compressor development history
In 1960, Simmain, France proposed the idea of single-screw compressor and obtained the patent right;
In 1963, the first prototype was tried to be manufactured, and it was officially produced and put on the market by the French Peugeot in the early 1970s.
In the late 1980s, with the improvement of technology, compressed air that can be used in petroleum, chemical, mining and other industries was produced.
Today's single-screw air compressors are mainly used in petroleum, chemical, energy, transportation, machinery, metallurgy, mining, construction, medicine, food and other fields, and the market demand is also increasing.
Top3 Piston Engine Development History
The reciprocating piston machine can be said to be the earliest developed type of compressors. It compresses and transports gas through the reciprocating motion of the piston in the cylinder during operation.
timeline:
The wooden bellows invented by China in 1500 BC is the prototype of the piston compressor;
By the end of the 18th century, the first industrial reciprocating air compressor had been made in England;
Oil-free lubrication and diaphragm compressors began to appear in the 1930s.
Top4 Centrifuge Development History
(Hint: The earliest use of centrifugal force was in ancient China. At that time, people used to tie a rope to a clay pot and shake it vigorously to separate honey from honey through centrifugal force.)
The first centrifuge was born in Germany in 1836;
After several decades, Sweden, for the first time, used centrifugal equipment in the food industry, a milk fat centrifuge that separated cows and milk fat from milk;
By 1950 in Switzerland, centrifuge technology had been improved again, and it was now possible to use variable frequency motors for direct drive. This development has laid the foundation for centrifuges in scientific research, hospitals, industrial production and other fields.
Time has come to the present, and the development of centrifuges is even more rapid. There are countless types in terms of types, and the application industry is also opening up new fields.
