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Fluid sealing technology is widely used in the field of petrochemical machinery , mechanical parts and components that can be said is indispensable . It the whole machine equipment , the entire device , and even safe production of the entire plant . In petrochemical enterprises , most of the processing stream ( gas , liquid) is corrosive , flammable , explosive and toxic , and once the seal failure , media leaks , the consequences could be disastrous . Therefore , the development of fluid sealing technology , equipment operation, reliable , safe and stable unit , the device plays a very important role in continuous production . Floating ring seal is a special structure combined fluid dynamic seal , due to its stable sealing performance , can be used in high-temperature , high-pressure and high-speed rotating fluid mechanical advantage , domestic transportation of liquefied petroleum gas (LPG) , hydrogen and other flammable media centrifugal gas compressors use of floating ring seal . This article for the recycle hydrogen centrifugal compressor floating ring seal leak problem , through analysis of its structure and operating conditions as well as a series of theoretical calculation to find out the reason of seal failure , and after the test of the actual working conditions , to draw pressure the relationship between the rotational speed and the relative eccentricity , and improved based on the structure and material of these data for the floating ring seal . Practice has proved that this transformation to achieve the intended technical effect and economic indicators .
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