| 摘要 |
<p>A highly reliable fluid cooling system is provided having a first and second cooling loop, each of which is adapted to provide cooling for separate sections of the system to be cooled. Each of the cooling loops is connected to an expansion tank at opposite sides of a partition therein. Crossover piping is provided at the discharge side of the first and second pumps connecting the first loop to the second loop and containing a normally open valve therein. In normal operation, the first pump is adapted for pumping fluid through both the first and second cooling loops via the crossover piping and the common expansion tank. A sensor is provided in each half of the partitioned expansion tank for sensing the drop in fluid level below the partition. Either sensor causes the normally open valve in the crossover piping to close and energizes the second pump so that fluid is circulated in the second loop simultaneously with the circulation of the fluid in the first loop by the first pump, thereby providing a highly reliable dual loop cooling system which acts like one loop during normal operation and automatically separates into two separate loops when a leak is detected.</p> |
