公开(公告)号：US5097670A

公开(公告)日：1992-03-24

申请号：US645392

申请日：1991-01-24

申请人： Tomio Yoshikawa ,  Tetsuji Yamashita ,  Kyoshiro Murakami ,  Takashi Kato ,  Hiromu Yasuda ,  Shizuo Zushi

发明人： Tomio Yoshikawa ,  Tetsuji Yamashita ,  Kyoshiro Murakami ,  Takashi Kato ,  Hiromu Yasuda ,  Shizuo Zushi

IPC分类号： F25B1/00 ,  F25B49/02 ,  F25D17/02 ,  G05D23/19

CPC分类号： F25B49/02 ,  F25D17/02 ,  G05D23/1912 ,  F25B2400/06 ,  F25B2600/021 ,  Y02B30/741

摘要： A water chilling apparatus comprising a plurality of chilling modules each having a refrigerating cycle mainly composed of a compressor, a condensor, an evaporator and an expansion mechanism, and a control module having a water pump for feeding, to an object to be chilled, chilling water cooled down by the evaporator of each chilling module, a detector for detecting a temperature of the chilling water and a water temperature controller. A chilling ability of each chilling module in response to a variable frequency is kept at substantially the same level. A capacity of the compressor of each chilling module is variably controlled in a range between an upper limit capacity and a lower limit capacity. The water temperature controller is used to calculate a whole necessary capacity value needed in the compressors of all the chilling modules as a function as a deviation between a set value of the chilling water temperature and a chilling water temperature detected by the detector. The number of the operated chilling modules is controlled in response to the whole necessary capacity value and the upper and lower capacities of each of the chilling modules. The capacity of the compressor of each of the cooling modules is controlled so as to have a capacity value obtained by equally distributing the calculated whole necessary capacity value by the number of the operated chilling modules.

摘要翻译： 一种冷冻装置，包括多个冷冻模块，每个冷冻模块具有主要由压缩机，冷凝器，蒸发器和膨胀机构组成的冷冻循环，以及具有用于将待冷却物体进行冷却的水泵的控制模块 每个冷却组件的蒸发器冷却的水，用于检测冷却水的温度的检测器和水温控制器。 每个冷却模块响应可变频率的冷却能力保持在基本相同的水平。 每个冷却模块的压缩机的容量可以在上限容量和下限容量之间的范围内可变地控制。 水温控制器用于计算所有冷却模块的压缩机中所需的全部必要容量值，作为冷水温度的设定值与检测器检测到的冷却水温度之间的偏差。 操作的冷却模块的数量是响应于每个冷却模块的整个必需容量值和上限和下限容量来控制的。 每个冷却模块的压缩机的容量被控制为具有通过将计算出的整个必需容量值均匀地分配到所操作的冷却模块的数量而获得的容量值。

公开(公告)号：US4918944A

公开(公告)日：1990-04-24

申请号：US260698

申请日：1988-10-21

申请人： Kenji Takahashi ,  Takuji Torii ,  Takao Senshu ,  Tetsuji Yamashita ,  Shizuo Zushi

发明人： Kenji Takahashi ,  Takuji Torii ,  Takao Senshu ,  Tetsuji Yamashita ,  Shizuo Zushi

IPC分类号： F25B39/02 ,  F25B43/00 ,  F28D3/02

CPC分类号： F25B43/00 ,  F25B39/02

摘要： This invention relates to a falling film evaporator which is arranged to cause a liquid film to flow downward to thereby effect heat exchange using evaporation. In a space of an evaporating compartment, a gas-liquid separator is disposed to communicate with a compressor which constitutes a part of a refrigeration cycle.