| 摘要 |
Inside a horizontal pressure cylinder (5), with heating tubes (7) along its outside and cooling tubes (10) inside at the bottomwood (11) is carried by supports (13) leaving air circulating gaps. Initially during a heating phase, pressure is applied internally. Then follows a cooling phase, when the temp is reduced. The heating and cooling phases are repeated with condensate removed during the cooling phase. The temp. used is above 47 deg.C and not more than 80 deg.C during the heating phase. The pressure is between 1 and 10 bar, e.g. 1.2 to 1.5 bar. During the cooling phase, the pressure is between 0.6 and 0.95 bar. The temp. difference between the phases is more than 8 deg.C the Air inside is circulated at least during the low pressure phase.
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