| 摘要 |
In the coolant circulating apparatus for supplying a coolant in a tank to a heat load connected to the tank through a feed pipe and a return pipe in a circulating manner to cool the heat load, the coolant building up in the feed pipe, the heat load, and the return pipe is caused to flow back into the tank and recovered by supplying compressed gas from a compressed gas supply source into the feed pipe through a recovery gas duct when operation of the apparatus is completed and changes in a liquid level in the tank caused by supply and recovery of the coolant to and from the heat load are absorbed by supplying or discharging compressed gas from and into a liquid level regulating gas duct into and from a liquid level regulating chamber to thereby push the coolant out from the liquid level regulating chamber or cause the coolant to flow into the liquid level regulating chamber.
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