Title:
COMPRESSION DEVICE
Document Type and Number:
Japanese Patent JP2019027346
Kind Code:
A
Abstract:
To prevent adhesion of oil to a reliquefying line while securing sealing performance of a compression device for compressing boil-off gas.SOLUTION: A compression device 10 comprises an oilless type front stage compressor 21 for sucking and compressing boil-off gas, a rear stage compressor 23 for compressing the boil-off gas compressed by the front stage compressor 21, and a reliquefying line 29 for reliquefying at least a portion of the boil-off gas compressed by the rear stage compressor 23. The rear stage compressor 23 comprises a plurality of stages of compression mechanisms 23a-23d. A rod lubrication compression mechanism 31 constituted by a reciprocating type compression mechanism and in which oil is supplied between a piston rod and rod packing is included in the plurality of stages of compression mechanisms 23a-23d.SELECTED DRAWING: Figure 1
Inventors:
SEYAMA KATSUHIRO
TEZUKA SATOSHI
AKAGE NAOKI
TEZUKA SATOSHI
AKAGE NAOKI
Application Number:
JP2017146745A
Publication Date:
February 21, 2019
Filing Date:
July 28, 2017
Export Citation:
Assignee:
KOBE STEEL LTD
International Classes:
F04B41/06; B63B25/16; B63H21/38; F04B39/00; F04B39/02
Domestic Patent References:
| JP2016173184A | 2016-09-29 | |||
| JPS5857575U | 1983-04-19 | |||
| JP2006137877A | 2006-06-01 | |||
| JP2005036194A | 2005-02-10 | |||
| JPH03118279U | 1991-12-06 | |||
| JP2004116329A | 2004-04-15 |
Attorney, Agent or Firm:
Etsushi Kotani
Masataka Otani
Tamagushi Yukihisa
Masataka Otani
Tamagushi Yukihisa