STEAM LINE OF LNG CARRIER - MITSUBISHI HEAVY IND LTD

Title:

STEAM LINE OF LNG CARRIER

Document Type and Number:

Japanese Patent JP2014118047

Kind Code:

A

Abstract:

To provide a steam line of an LNG carrier in which the mono-fuel combustion of a natural gas in a boiler can be performed even in a maneuvering area.

When a load of a steam turbine 12 for a main engine is lower than a predetermined value, a boiler 11 always generates a steam flow more than the steam flow required by the steam turbine for the main engine. Accordingly, a steam line 1 of an LNG carrier includes a main steam pipe 2 and a dump steam pipe 3. When there is a load-up request for increasing a load of the steam turbine 12 for the main engine, a flow control valve 46 is operated in a closing direction, and a flow rate of steam passing the dump steam pipe 3 is decreased instantly, and thereby the flow rate of steam led to the steam turbine 12 for the main engine is increased instantly through the steam line 2 for the main engine by that amount.

Inventors:

NAKAMURA RYUTA
NISHIYAMA TARO

Application Number:

JP2012274855A

Publication Date:

June 30, 2014

Filing Date:

December 17, 2012

Export Citation:

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Assignee:

MITSUBISHI HEAVY IND LTD

International Classes:

B63H21/06; B63B25/16; B63H21/08; B63H21/10; F01D17/00; F17C9/02

Domestic Patent References:

JPH02162188A	1990-06-21
JP2000142563A	2000-05-23
JPS62243936A	1987-10-24
JP2006349133A	2006-12-28

Other References:

津崎賢治 KENJI TSUZAKI: "自社LNG船の運行最適化による燃料消費量の低減", 日本オペレーションズ・リサーチ学会２０１１年秋季研究発表会アブストラクト集（第２８回企業事例交流会, JPN6016012895, 13 September 2011 (2011-09-13), JP, pages 298 - 299, ISSN: 0003293922
岡　勝ほか: "ＬＮＧ船ＢＯＧ再液化装置", TECHNO MARINE: 日本造船学会誌, vol. 868号, JPN6016038211, 10 January 2002 (2002-01-10), pages 377 - 378, ISSN: 0003413363

Attorney, Agent or Firm:

Noriharu Fujita
Kunio Ueda

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