Title:
REFRIGERANT RECOVERING APPARATUS AND REFRIGERANT RECOVERING METHOD
Document Type and Number:
WIPO Patent Application WO/1999/014539
Kind Code:
A1
Abstract:
A refrigerant recovering apparatus which comprises a recovery pipe (2), heat exchangers (25, 26), and check valves (30, 31, 37, 38), a refrigerant in the recovery pipe (2) being heated and cooled in the heat exchangers (25, 26) to give flow power to the refrigerant, this flow power being restricted in one direction by the check valves (30, 31, 37, 38) so as to transfer the refrigerant in one direction in the recovery pipe (2), whereby the refrigerant can be recovered efficiently from a gas line (3) and a liquid line (5), a gas extraction circuit (306) allowing a gas refrigerant in a recovery container (71) to merge with the refrigerant, which is cooled by the heat exchanger (25 or 26), in the recovery pipe (2), whereby it becomes possible to extract the gas from the recovery container (71), and recover the refrigerant to the recovery container (71) with a high efficiency.
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Inventors:
UENO TAKEO (JP)
IIJIMA TOSHIHIRO (JP)
TAKEGAMI MASAAKI (JP)
IIJIMA TOSHIHIRO (JP)
TAKEGAMI MASAAKI (JP)
Application Number:
PCT/JP1998/004014
Publication Date:
March 25, 1999
Filing Date:
September 08, 1998
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
UENO TAKEO (JP)
IIJIMA TOSHIHIRO (JP)
TAKEGAMI MASAAKI (JP)
UENO TAKEO (JP)
IIJIMA TOSHIHIRO (JP)
TAKEGAMI MASAAKI (JP)
International Classes:
B01D19/00; F25B45/00; (IPC1-7): F25B45/00
Domestic Patent References:
| WO1997015789A1 | 1997-05-01 |
Foreign References:
| JPH07243723A | 1995-09-19 | |||
| JPH08303909A | 1996-11-22 |
Other References:
See also references of EP 1018628A4
Attorney, Agent or Firm:
Aoyama, Tamotsu (Shiromi 1-chome Chuo-ku, Osaka-shi Osaka, JP)
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