MULTI-STAGE COMPRESSION SYSTEM, CONTROL DEVICE, CONTROL METHOD, AND PROGRAM

Title:

MULTI-STAGE COMPRESSION SYSTEM, CONTROL DEVICE, CONTROL METHOD, AND PROGRAM

Document Type and Number:

WIPO Patent Application WO/2016/002557

Kind Code:

A1

Abstract:

A multi-stage compression system wherein gas which has already been compressed by a pair of first-stage compressors is compressed using subsequent-stage compressors which are connected in series to the first-stage compressors, said multi-stage compression system being equipped with a valve control unit which outputs an open/close signal for opening/closing valves, which are disposed on the entrance side of the first-stage compressors to adjust the flow rates of the gas flowing into the first-stage compressors. After an abnormality of one of the valves not reaching an opening degree corresponding to an open/close signal is detected and until the abnormality is eliminated, the valve control unit outputs, as the open/close signal, an open/close signal whereby the opening degree difference from that of the valve prior to the detection of the abnormality becomes equal to or smaller than a prescribed value.

Inventors:

NAKAGAWA YOSUKE (JP)
YONEMURA NAOTO (JP)
MIYATA HIROYUKI (JP)
MORI NAOKI (JP)

Application Number:

PCT/JP2015/067858

Publication Date:

January 07, 2016

Filing Date:

June 22, 2015

Export Citation:

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Assignee:

MITSUBISHI HEAVY IND LTD (JP)
MITSUBISHI HEAVY IND COMPRESSOR CORP (JP)

International Classes:

F04B49/10; F04C23/00; F04C28/02; F04C28/28

Domestic Patent References:

WO2011005455A2

2011-01-13

Foreign References:

JP2013170573A	2013-09-02
JP2008169985A	2008-07-24
JP2002147253A	2002-05-22
JPH09159047A	1997-06-17
JPH08247335A	1996-09-27
JPH096439A	1997-01-10
JP2008274931A	2008-11-13

Other References: