| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lubricating oil recovery device capable of inexpensively and continuously returning a concentrate condensed to a specific concentration to a lubricating system. <P>SOLUTION: In the lubricating oil recovery device concentrating and recovering lubricating oil dissolved in a refrigerant of refrigerating machine, a concentration container 2 includes a heating means 3 for heating and concentrating the refrigerant 8 including the lubricating oil sent in from an evaporator 1, and a recovery opening 4 using a height reached by a foam layer formed by heating as an index and recovering the concentrate of a target concentration to an exterior. It is preferable to provide the recovery opening 4 at a position of the height or more reached by the foam layer formed by the target concentration of the concentrate, an ejector 7 for recovering the concentrate can be disposed in the recovery opening 4, an auxiliary chamber can be disposed for separating gas and liquid from the recovered concentrate, and the concentration container 2 and the evaporator 1 can be integrally composed. <P>COPYRIGHT: (C)2011,JPO&INPIT |
