| 摘要 |
An ice water cooling system for a multi-story building includes an open chemical tank 304 adjacent the bottom of the building 300. The tank includes a float-level ball 310 positioned therein for controlling the flow volume of water from the pipeline circular system 302. A pump 314 and check valve 312 are positioned downstream of the tank and are configured to prevent reflux from the pipeline circular system. The float-level ball, pump and check valve act to isolate the pressure in the pipeline circular system from that of the open-chemical tank which is at atmospheric pressure.
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