发明名称 |
REFRIGERATING APPARATUS |
摘要 |
The capacity of a compressor ( 21 ) in cleaning operation is set based on a Froude number Fr. The Froude number Fr expresses a ratio of an inertial force of a gas refrigerant flowing through a gas side communication pipe ( 70 ) to a gravity working on a liquid in the gas side communication pipe ( 70 ). The capacity of the compressor ( 21 ) in the cleaning operation is set so that the Froude number Fr is larger than 1, whereby the inertial force of the gas refrigerant flowing through the gas side communication pipe ( 70 ) becomes larger than the gravity working on the liquid in the gas side communication pipe ( 70 ) which contains mineral oil and foreign matters. In this connection, the liquid containing the mineral oil and the foreign matters is pushed up by the gas refrigerant even in a perpendicularly extending portion of the gas side communication pipe ( 70 ). Thus, the mineral oil and the foreign matters remaining in the existing liquid side communication pipe ( 60 ) and the existing gas side communication pipe ( 70 ) are recovered.
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申请公布号 |
EP1640677(A1) |
申请公布日期 |
2006.03.29 |
申请号 |
EP20040819363 |
申请日期 |
2004.11.24 |
申请人 |
DAIKIN INDUSTRIES, LTD. |
发明人 |
YOSHIMI, ATSUSHI;YOSHIMI, MANABU;MIZUTANI, KAZUHIDE;MATSUOKA, HIROMUNE |
分类号 |
F25B1/04;F25B45/00;F25B47/00;(IPC1-7):F25B45/00 |
主分类号 |
F25B1/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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