公开(公告)号：EP0772021A2

公开(公告)日：1997-05-07

申请号：EP96307805.0

申请日：1996-10-29

申请人： ISHIKAWAJIMA-HARIMA JUKOGYO KABUSHIKI KAISHA

发明人： Kato, Kanji ,  Watanabe, Hiroshi

IPC分类号： F28F27/00 ,  F28C1/04

CPC分类号： F28F27/003 ,  Y02B30/748 ,  Y10S261/11

摘要： A cooling tower for cooling a liquid includes a cooling fan (4) arranged to pass air through the cooling tower, hydraulic motor (12) connected to rotate the fan, a pump (14), which is operated by a motor (13) and is connected to the hydraulic motor via a hydraulic supply line (18A) which includes a flow control valve (16), a temperature detector (20) for detecting the temperature of the liquid cooled within the cooling tower and a controller (24) arranged to compare the detected temperature with a predetermined temperature and to control the flow control valve in dependence on the difference between the detected and predetermined temperatures. The pump (14) is of variable capacity type and a capacity regulator (25) is associated with the pump (14) and arranged to vary the capacity of the pump to maintain a predetermined pressure differential between the pressures on the upstream and downstream sides of the flow control valve (16).

摘要翻译： 用于冷却液体的冷却塔包括布置成使空气通过冷却塔的冷却塔（4），连接以使风扇旋转的液压马达（12），由马达（13）操作的泵（14）和 经由液压供给管线（18A）连接到液压马达，该液压供应管线（18A）包括流量控制阀（16），用于检测在冷却塔内冷却的液体的温度的温度检测器（20），以及控制器 将检测到的温度与预定温度进行比较，并且根据检测到的和预定温度之间的差来控制流量控制阀。 泵（14）具有可变容量类型，并且容量调节器（25）与泵（14）相关联并且布置成改变泵的容量以保持在上游和下游侧的压力之间的预定压力差 流量控制阀（16）。