| 摘要 |
The invention relates to a cooling device (10) for cooling drilling fluids, comprising a first heat exchanger (16) for heat exchange between hot drilling fluid and a coolant passing through a closed second coolant circuit, a second heat exchanger (26) for heat exchange between the coolant and ambient air, wherein the closed second coolant circuit is provided with a coolant subcircuit provided with a third heat exchanger (80) for additional heat exchange between the coolant and a heat exchanging fluid. |
