Title:
船舶
Document Type and Number:
Japanese Patent JP6796976
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To improve re-liquefaction ratio of BOG which is returned to a tank through a return line.SOLUTION: A ship comprises: a main gas engine 12; an LNG tank 11; an air feeding line 14 for guiding BOG in the tank to a compressor 15; a first supply line 16 for guiding the BOG discharged from the compressor to the main gas engine; a return line 41 which is branched from the first supply line, connected to the tank, and has an expansion device 42; a sub gas engine 13 for power generation; a liquid feeding line for guiding an LNG from the tank to a compulsion vaporizer; a second supply line 20 for guiding a vaporization gas to the sub gas engine from the compulsion vaporizer 19; a heat exchanger 43 for performing heat exchange between the LNG flowing to the liquid feeding line 18 and the BOG flowing to an upstream side part of the expansion device on the return line; a bypass line 51 whose upstream end is connected to the return line on the upstream side of the heat exchanger, whose downstream end is connected to the return line between the heat exchanger and the expansion device; and an adjustment device for adjusting a flow rate of the BOG flowing to the bypass line.SELECTED DRAWING: Figure 1
Inventors:
Takashi Abe
Akihiro Ando
Hiroyuki Takeda
Naoko Indo
Naoki Narushima
Kouhei Hashimoto
Akihiro Ando
Hiroyuki Takeda
Naoko Indo
Naoki Narushima
Kouhei Hashimoto
Application Number:
JP2016183292A
Publication Date:
December 09, 2020
Filing Date:
September 20, 2016
Export Citation:
Assignee:
Kawasaki Heavy Industries, Ltd.
International Classes:
B63H21/38; B63B25/16; F02B43/00; F02M21/02; F02M37/00; F17C13/00
Domestic Patent References:
| JP2015505941A | ||||
| JP2016505784A | ||||
| JP2013087911A | ||||
| JP2011080361A | ||||
| JP62142980A |
Foreign References:
| KR1020160070368A |
Attorney, Agent or Firm:
Patent business corporation Yuko patent office