FUEL SUPPLY DEVICE AND MARINE BOILER PROVIDED THEREWITH, AND FUEL SUPPLY DEVICE CONTROL METHOD

Title:

FUEL SUPPLY DEVICE AND MARINE BOILER PROVIDED THEREWITH, AND FUEL SUPPLY DEVICE CONTROL METHOD

Document Type and Number:

WIPO Patent Application WO/2017/163623

Kind Code:

A1

Abstract:

Provided is a fuel supply device (100) provided with: a fuel gas supply header (102) for distributing a fuel gas supplied from an LNG tank (400); a main nozzle supply pipe (54); a pilot nozzle supply pipe (55); a control valve (53) provided on the main nozzle supply pipe (54); and a control unit (90) for controlling the degree of opening of the control valve (53). The control unit (90) controls the control valve (53) so as to be set to a closed state if the flow rate of the fuel gas supplied to a first burner (221) from the fuel gas supply header (102) is less than a prescribed flow rate, and such that the degree of opening increases according to an increase in the flow rate of the fuel gas if the flow rate of the fuel gas supplied to the first burner (221) from the fuel gas supply header (102) is equal to or greater than the prescribed flow rate.

Inventors:

NAKAMURA RYUTA (JP)
MATSUSHITA KOICHI (JP)

Application Number:

PCT/JP2017/003831

Publication Date:

September 28, 2017

Filing Date:

February 02, 2017

Export Citation:

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Assignee:

MITSUBISHI HEAVY IND LTD (JP)

International Classes:

F23N1/00; B63H21/38; F01K15/04; F23K5/00; B63H21/08

Foreign References:

JP2008281271A	2008-11-20
JP2009002529A	2009-01-08
JPS6239330B2	1987-08-22
JPS5853245B2	1983-11-28
JPS418729B1
US20100058770A1	2010-03-11

Other References: