Title:
CALCULATION DEVICE, SYSTEM, CALCULATION METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2020/203841
Kind Code:
A1
Abstract:
This calculation device is provided with: a limit value calculation unit which calculates, on the basis of a pressure value inside a boiler and a flow rate value in an induced draft fan, a lower limit value of the rotation speed of a motor in the induced draft fan, and an upper limit value of a damper opening degree of a damper that adjusts the pressure inside the boiler, the upper limit value being possible upon calculation of the lower limit value; and a target rotation speed specification unit which specifies, on the basis of the lower limit value and the upper limit value, at least one among the lower limit value of the rotation speed of the motor in the induced draft fan, which is targeted by a control, and the upper limit value of the damper opening degree of the damper, which is targeted by the control.
Inventors:
NAGAFUCHI NAOYUKI (JP)
SHIMO HISASHI (JP)
KATO MASAYUKI (JP)
IKEDA MICHIHIKO (JP)
SHIMO HISASHI (JP)
KATO MASAYUKI (JP)
IKEDA MICHIHIKO (JP)
Application Number:
PCT/JP2020/014198
Publication Date:
October 08, 2020
Filing Date:
March 27, 2020
Export Citation:
Assignee:
MITSUBISHI HITACHI POWER SYS (JP)
International Classes:
F22B35/00; F23L17/00; F23L17/16; F23N5/00
Foreign References:
| JPS56902A | 1981-01-08 | |||
| JP2000234701A | 2000-08-29 | |||
| JP2004232917A | 2004-08-19 | |||
| JP2015210035A | 2015-11-24 | |||
| JPH10253030A | 1998-09-25 | |||
| JPH1082523A | 1998-03-31 | |||
| US3416470A | 1968-12-17 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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