Title:
CENTRIFUGAL MULTI-STAGE COMPRESSOR
Document Type and Number:
Japanese Patent JP2001107891
Kind Code:
A
Abstract:
To provide a centrifugal multi-stage type compressor in which the production of polymer is effectively inhibited at a sealing portion and performance of the sealing portion can be retained well.
A centrifugal multi-stage type compressor 1 for compressing a butadiene gas B by rotating a plurality of impellers 5 mounted to a main shaft 7 in a casing 4 is provided with a sealing portion 10 fixed to the casing 4 in which the butadiene gas B extracted from any one of stages is fed as a buffer gas; and an inert fluid feeding device 34 for feeding an inert fluid into the sealing portion 10.
Inventors:
MIHASHI YASUYOSHI
TANABE SEIICHI
TANABE SEIICHI
Application Number:
JP28688599A
Publication Date:
April 17, 2001
Filing Date:
October 07, 1999
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD
International Classes:
F04D29/12; (IPC1-7): F04D29/12
Attorney, Agent or Firm:
Yoshiki Hasegawa (3 outside)