Title:
油冷式空気圧縮機
Document Type and Number:
Japanese Patent JP5851148
Kind Code:
B2
Abstract:
An oil-cooled gas compressor provided with: a compressor body (3); an oil separator (6) that separates out oil from a compressed gas; a gas pipe (8) for sending the compressed gas, from which oil has been separated out by the oil separator, to a user; and an oil pipe (7) for returning, to the compressor, the oil separated out by the oil separator. The following are also provided: an air-cooled heat exchanger (13) for cooling the aforementioned oil; a controllable-speed cooling fan (14) for blowing cooling air at said air-cooled heat exchanger; and a waste-heat-recovery heat exchanger (10), provided upstream of the air-cooled heat exchanger, for recovering heat from the oil flowing through the abovementioned oil pipe. The speed of the cooling fan is controlled so as to bring the temperature of the compressed gas discharged from the compressor body to within a prescribed range. This makes it possible both to recover waste heat from the oil heated by being used to cool the compressor, and to suppress compressor temperature fluctuations even if the load on the waste-heat-recovery equipment varies.
Inventors:
Masahiko Takano
Hideharu Tanaka
Hideharu Tanaka
Application Number:
JP2011173056A
Publication Date:
February 03, 2016
Filing Date:
August 08, 2011
Export Citation:
Assignee:
Hitachi Industrial Equipment Systems Co., Ltd.
International Classes:
F04B41/00
Domestic Patent References:
| JP61179387U | ||||
| JP2003254253A | ||||
| JP8319976A | ||||
| JP2000045950A |
Attorney, Agent or Firm:
Aoritsu patent business corporation
Polaire Patent Business Corporation
Polaire Patent Business Corporation