Title:
COMPRESSOR SURGE GENERATION PREVENTION DEVICE AND COMPRESSOR SYSTEM
Document Type and Number:
WIPO Patent Application WO/2017/138481
Kind Code:
A1
Abstract:
A surge generation prevention device 20 is provided with: a compression coefficient specification unit 21 which acquires information about an intake-side gas pressure Ps, an intake-side gas temperature Ts, a discharge-side gas pressure Pd, a discharge-side gas temperature Td, and a discharge-side gas flow rate Qd of a compressor that compresses gas G, and which specifies an intake-side compression coefficient Zs of the gas G and a discharge-side compression coefficient Zd of the gas G; a flow rate calculation unit 23 which, when the intake-side compression coefficient Zs and the discharge-side compression coefficient Zd is specified, calculates an intake-side gas flow rate Qs·calc according to the following expression (2); and a control quantity specification unit (opening degree control unit) 25 which controls the opening degree of an anti-surge valve on the basis of the calculated Qs·calc. The compression coefficient specification unit 21 has the feature of specifying the intake-side compression coefficient Zs and the discharge-side compression coefficient Zd under the condition of enriched water concentration. Qs·calc = Qd × Pd/Ps × Ts/Td × Zs/Zd (2)
Inventors:
TAKAKI HIROYUKI (JP)
NAKAGAWA YOSUKE (JP)
NAKAGAWA YOSUKE (JP)
Application Number:
PCT/JP2017/004172
Publication Date:
August 17, 2017
Filing Date:
February 06, 2017
Export Citation:
Assignee:
MITSUBISHI HEAVY IND COMPRESSOR CORP (JP)
MITSUBISHI HEAVY IND LTD (JP)
MITSUBISHI HEAVY IND LTD (JP)
International Classes:
F04D27/02
Foreign References:
| JPS6248999A | 1987-03-03 | |||
| JP2014043795A | 2014-03-13 |
Attorney, Agent or Firm:
OBA, Mitsuru et al. (JP)
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