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1. 发明申请

US20150354851A1 COLD WATER CIRCULATION SYSTEM 审中-公开
标题翻译：冷水循环系统
公开(公告)号：US20150354851A1
公开(公告)日：2015-12-10
申请号：US14655846
申请日：2013-12-26
申请人： NTT FACILITIES, INC.
发明人： Ari Yoshii , Shinichiro Kaneko , Kanji Tashiro
IPC分类号： F24F11/06 , F24F3/06
CPC分类号： F24F11/83 , F24F3/06 , F24F5/0003 , H05K7/2079
摘要： A cold/chilled water circulation system comprises a thermal source, an AHU, a pump, and a control section. The thermal source cools chilled water to a specified temperature. The AHU is an air conditioner that cools air by heat exchange with the chilled water. The pump feeds the chilled water having a flow rate corresponding to an operating frequency of a power inverter to the AHU from the thermal source. The control section calculates a degree of surplus, which indicates surplus capacity of the AHU to cool air, on the basis of information indicating the state of the AHU. The control section controls the operating frequency of the power inverter, to decrease the flow rate of the fed chilled water if the degree of surplus is not lower than the specified threshold, and to increase the flow rate if the degree of surplus is lower than the specified threshold.
摘要翻译：冷/冷水循环系统包括热源，AHU，泵和控制部。热源将冷冻水冷却至指定温度。 AHU是通过与冷冻水进行热交换来冷却空气的空调。泵将具有与功率逆变器的工作频率对应的流量的冷冻水从热源供给到AHU。控制部根据表示AHU的状态的信息，计算出剩余容量，表示AHU冷空气的剩余容量。控制部分控制电力逆变器的工作频率，如果剩余量不低于指定阈值，则降低进给冷冻水的流量，并且如果过剩度低于指定阈值。

2. 发明授权

US10203128B2 Cold water circulation system with control of supply of cold water based on degree of air handler surplus 有权
公开(公告)号：US10203128B2
公开(公告)日：2019-02-12
申请号：US14655846
申请日：2013-12-26
申请人： NTT FACILITIES, INC.
发明人： Ari Yoshii , Shinichiro Kaneko , Kanji Tashiro
IPC分类号： F24F11/83 , H05K7/20 , F24F5/00 , F24F3/06
摘要： A chilled water circulation system includes a thermal source, an AHU, a pump, and a control section. The thermal source chills water to a specified temperature. The AHU cools air by heat exchange with the chilled water. The pump feeds the chilled water having a flow rate corresponding to an operating frequency of a power inverter to the AHU. The control section calculates a degree of surplus, which indicates surplus capacity of the AHU to cool air, on the basis of information indicating the state of the AHU. If the degree of surplus is not lower than the specified threshold, the control section controls the operating frequency of the power inverter, thereby decreasing the flow rate of the chilled water fed from the pump. If the degree of surplus is lower than the specified threshold, the control section increases the flow rate of the chilled water fed from the pump.

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