Title:
CLEANING DEVICE, REFRIGERATED AIR CONDITIONER AND ITS REPLACEMENT METHOD
Document Type and Number:
Japanese Patent JP3666343
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a cleaning device for rapidly cleaning a piping without giving a bad influence to the environment.
SOLUTION: This cleaning device, which is operated by using a cooling medium containing no chlorine content for cleaning the existing pipeline and supplying the vapor-liquid two-phase stream of the cooling medium to the piping, has a liquid feeding means for feeding the cooling medium as liquid, a heating means for heating the cooling medium fed by the liquid feeding means to produce the vapor-liquid two-phase stream by vaporizing a part of the cooling medium and a cooling means for cooling and liquefying the vapor content of the vapor-liquid two-phase stream on the downstream side of the position where the vapor-liquid two-phase stream passed through the piping, on the inside of which the subject to be cleaned is deposited, and sending the liquefied cooling medium again to the feeding means.
Inventors:
Fumitake unezaki
Naoki Tanaka
Seiji Inoue
Naoki Tanaka
Seiji Inoue
Application Number:
JP2000058608A
Publication Date:
June 29, 2005
Filing Date:
March 03, 2000
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
B08B9/027; B08B3/08; B08B3/10; F25B47/00; F28G9/00; (IPC1-7): B08B3/08; B08B3/10; B08B9/027; F25B47/00; F28G9/00
Domestic Patent References:
| JP2000009368A |
Attorney, Agent or Firm:
Shogo Takahashi
Tadahiko Inaba
Kanako Murakami
Nakatsuru Kazutaka
Tadahiko Inaba
Kanako Murakami
Nakatsuru Kazutaka