REFRIGERATING APPARATUS - DAIKIN IND LTD

Title:

REFRIGERATING APPARATUS

Document Type and Number:

WIPO Patent Application WO/2005/052472

Kind Code:

A1

Abstract:

A refrigerating apparatus, wherein the capacity of a compressor (21) is set based on a Froude number Fr during the washing operation. The Froude number represents the ratio of the inertia force of a gas refrigerant flowing in a gas side communication tube (70) to a gravity acting on a fluid in the gas side communication tube (70). During the washing operation, the capacity of the compressor (21) is set so that the Froude number Fr is equal to or larger than 1, and the inertia force of the gas refrigerant flowing in the gas side communication tube (70) becomes larger than the gravity acting on the fluid containing mineral oils and foreign matters in the gas side communication tube (70). Accordingly, the fluid containing the mineral oils and foreign matters is pushed up by the gas refrigerant also at the vertical portion of the gas side communication tube (70). Thus, the mineral oils and foreign matters remaining in an existing fluid side communication tube (60) and the gas side communication tube (70) can be collected.

Inventors:

YOSHIMI ATSUSHI (JP)
YOSHIMI MANABU (JP)
MIZUTANI KAZUHIDE (JP)
MATSUOKA HIROMUNE (JP)

Application Number:

PCT/JP2004/017400

Publication Date:

June 09, 2005

Filing Date:

November 24, 2004

Export Citation:

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Assignee:

DAIKIN IND LTD (JP)
YOSHIMI ATSUSHI (JP)
YOSHIMI MANABU (JP)
MIZUTANI KAZUHIDE (JP)
MATSUOKA HIROMUNE (JP)

International Classes:

F25B1/04; F25B45/00; F25B47/00; (IPC1-7): F25B45/00

Foreign References:

JP2002107011A	2002-04-10
JP2001141340A	2001-05-25

Other References: