СОВЕРШЕНСТВОВАНИЕ СТУПЕНЕЙ СЖАТИЯ И ПРЕДВАРИТЕЛЬНОГО ОХЛАЖДЕНИЯ КРИОГЕННЫХ ВОДОРОДНЫХ И ГЕЛИЕВЫХ УСТАНОВОК
DOI:
https://doi.org/10.18198/j.ind.gases.2002.0049Keywords:
helium, hydrogen, refrigerant, cryogenic helium unit, cryogenic hydrogen unit, compression of the cryoagent-refrigerant mixtures, R12 (difluordichlormethane), step of compression and preliminary cooling, centrifugal compressor, screw compressorAbstract
The cryogenic hydrogen and helium tonnage units are failed to be created on the basis of centrifugal compressor because of the low degrees of compression of these gases in one step. The certain complexities to appear and at usage for these purposes the screw oil-flooded compressors. In our previous researches was shown that the number of steps of compression can essentially be reduced at conversion to compression of hydrogen and helium mixtures with the hard low-temperature refrigerants. However the application of refrigerants in mixtures with hydrogen and helium reduces to essential growth of power's expenses on compression in comparison with the similar processes for the pure hydrogen and helium. Two variants of the solution given problems are presentated in the given article which allows the operation of compression of the mixtures to approximate to operation the compression of the pure cryoagents (helium and hydrogen) or even to make it below. One of variants is based on organization the cryoagent compression in the environment of a boiling refrigerant and another — on interchange of compression processes and the intermediate cooling of mixture by a boiling refrigerant.
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