Title:
GAS EXPANDER
Document Type and Number:
WIPO Patent Application WO/2017/138035
Kind Code:
A1
Abstract:
A gas expander 1 is provided with: a casing 20 having formed therein a swirl chamber 21 through which process gas G flows; a turbine wheel 10 accommodated within the casing 20 and rotationally driven by the process gas G which has been expanded by flowing through the swirl chamber 21 and which acts on the turbine wheel 10; and a diffuser mounted to the casing 20 in the direction of the rotation axis 11 of the turbine wheel 10 and having a flow passage 31 through which the process gas G having flowed through the turbine wheel 10 flows. The gas expander 1 is characterized by comprising: a swirl reducing cylinder 32 provided within the diffuser 30 and facing the downstream front end surface 14 of the turbine wheel 10 facing the flow passage 31; and a plurality of swirl prevention plates 35 for circumferentially partitioning the flow passage 31 of the diffuser 30.
Inventors:
YONEMURA NAOTO (JP)
HIRATA DAISUKE (JP)
HIGASHIMORI HIROTAKA (JP)
HIRATA DAISUKE (JP)
HIGASHIMORI HIROTAKA (JP)
Application Number:
PCT/JP2016/000654
Publication Date:
August 17, 2017
Filing Date:
February 09, 2016
Export Citation:
Assignee:
MITSUBISHI HEAVY IND COMPRESSOR CORP (JP)
International Classes:
F01D25/30; F01D1/08
Domestic Patent References:
| WO2014034643A1 | 2014-03-06 |
Foreign References:
| JP2016003584A | 2016-01-12 | |||
| JP2012177357A | 2012-09-13 | |||
| JP2013170486A | 2013-09-02 | |||
| JPH06173707A | 1994-06-21 | |||
| US3937013A | 1976-02-10 | |||
| US3116908A | 1964-01-07 | |||
| JPH0735091A | 1995-02-03 |
Other References:
See also references of EP 3351753A4
Attorney, Agent or Firm:
OBA, Mitsuru et al. (JP)
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