Walked oil turbine-driven Ultracentrifuge the ups and downs
Oil turbine-driven Ultracentrifuge is T. Svedberg and others in order to build a strong centrifugal field research from 1926 onwards models. From there until 1939, ten years continuous improvement, has manufactured over 23 types of centrifuge rotors, had the highest speed 75000r/min, pool in the center of the largest centrifugal centrifugal acceleration up to 429000g. More mature plant is T. Svedberg and steam turbine companies made. It is played with a 15HP pressure oil pump, driven by the oil cooler after the jet turbine, placed horizontally at each end of the centrifuge rotor turbine, centrifugal chamber is not a vacuum but from high-pressure container supply hydrogen
About the same time with the vacuum pump to maintain 2.67kPa vacuum, in order to steel centrifugal rotor temperature stability. This is to analyze the use of speed centrifuge, which was produced by the Swedish LKB sale. As the world's first time machine practical speed centrifuge on the development of the discipline has played a catalytic role. Later, the United States Sorvall oil company of modern turbine speed centrifuge rotor, the use of other forms of speed centrifuge drive as easy. 1992 pro80 machines driven 8 * 12.5mL titanium rotor, the maximum speed 80000r/min, the maximum centrifugal acceleration 605000g, To the late 20th century discontinued. Beckman centrifuge Company speeding and other motor manufacturers have production - when the gear-type speed centrifuge, Sorvall turbine-driven products company run more smoothly, noise, and better than the gear-type machine, but users need to repeatedly start the centrifuge When used turbine oil can not keep up with the cooling tank. After 80 years of the 20th century, the direct drive motor variable frequency speed centrifuge replacement gear type, rather widespread, Sorvall centrifuge speed turbine oil company had to withdraw from the market.
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