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    • 3. 发明公开
    • HIGH EFFICIENCY COOLING SYSTEM
    • HOCHEFFIZIENTESKÜHLSYSTEM
    • EP3094167A1
    • 2016-11-16
    • EP16171689.9
    • 2012-04-16
    • Liebert Corporation
    • LIN, ZhiyongNOLL, RogerJUDGE, John FHELMINK, Gary ADOLCICH, Benedict JSCHUTTE, Daniel JSCHRADER, Timothy J
    • H05K7/20F25B25/00F24F1/02
    • A cooling system has a cabinet and a plurality of separate cooling stages including an upstream cooling stage and a downstream cooling stage. At least the upstream cooling state is a variable capacity cooling stage. Each cooling stage has a cooling circuit. Evaporators of the cooling circuits are arranged in the cabinet so that air passes over them in serial fashion. A controller when a Call for Cooling first reaches a point where cooling is needed, operating the upstream cooling circuit to provide cooling and not the downstream cooling circuit. When the Call for Cooling has increased to a second point, the controller additionally operates the downstream cooling circuit to provide cooling. The cooling capacity at which the upstream cooling circuit is being operated is less than its full capacity when the Call for Cooling reaches the second point.
    • 冷却系统具有机柜和多个单独的冷却级,其包括上游冷却级和下游冷却级。 至少上游冷却状态是可变容量冷却阶段。 每个冷却阶段都有一个冷却回路。 冷却回路的蒸发器布置在机柜中,使得空气以串联方式通过它们。 当冷却呼叫首先到达需要冷却的点时,控制器操作上游冷却回路以提供冷却而不是下游冷却回路。 当冷却呼叫增加到第二点时,控制器另外操作下游冷却回路以提供冷却。 上游冷却回路正在运行的制冷量小于其致冷要求到达第二点的满容量。