new idea and new structure of air seal design for centrifugal induced draft fan is put forward through field inspection.
通过现场实地考察提出了排蒸汽离心引风机汽封设计的新思路、新结构。
the air seal and the bearing of the supercharger must be renewed because the serious air leakage has caused the deterioration of the oil.
增压器的气封和轴承都得换新,由于气封漏气严重,使得油变质。
main disposition: using 1 set 6f2235 mill, 1 set no5 blower, 1 set 45 vertical negative pressure round sieve, main power 7.5kw, 2 set 4 l air seal etc.