公开(公告)号：US4090372A

公开(公告)日：1978-05-23

申请号：US779735

申请日：1977-03-21

申请人： Jeffrey Wayne Lamb

发明人： Jeffrey Wayne Lamb

IPC分类号： F25B15/06 ,  F25B49/04 ,  F25B15/00

CPC分类号： F25B15/06 ,  F25B49/043 ,  Y02B30/62

摘要： Control system capable of controlling the refrigeration capacity of a refrigeration system adapted for cooling a fluid medium, the refrigeration system being of the type including a refrigerant; an absorbent having an affinity for the refrigerant; an evaporator for bringing the refrigerant into heat transfer relationship with the fluid medium, the evaporator having an inlet for receiving the fluid medium to be cooled in an outlet for discharging cooled fluid medium; an absorber in communication with the evaporator for removing refrigerant vapor therefrom; means for supplying a concentrated absorbent-refrigerant solution to the absorber; means for cooling the absorber to maintain the pressure therein below the pressure in the evaporator whereby refrigerant vapor migrates to the absorber to combine with the concentrated solution to produce a dilute solution; a concentrator for removing a portion of the refrigerant from the dilute solution for recirculation to the evaporator and for providing the concentrated solution; means for supplying the dilute solution to the concentrator; and means for controlling the concentration of the concentrated solution supplied to the absorber for controlling the refrigeration capacity of the refrigeration system. Control system includes means disposed for sensing the variations in temperature at the evaporator inlet and outlet and within the absorber for providing first, second and third tracking signal outputs indicative of the sensed temperature variations, the first tracking signal output being indicative of the variations in temperature of the fluid at the evaporator inlet, the second tracking signal output being indicative of the variations in temperature of the fluid at the evaporator outlet and the third tracking signal output being indicative of the variations in temperature in the absorber.

摘要翻译： 控制系统，其能够控制适于冷却流体介质的制冷系统的制冷能力，所述制冷系统是包括制冷剂的类型; 对制冷剂具有亲和性的吸收剂; 用于使制冷剂与流体介质传热的蒸发器，所述蒸发器具有用于在用于排出冷却的流体介质的出口中接收待冷却的流体介质的入口; 与蒸发器连通以从其中除去制冷剂蒸气的吸收器; 用于向吸收器供给浓缩的吸收剂 - 制冷剂溶液的装置; 用于冷却吸收器以将其中的压力保持在蒸发器内的压力以下的装置，由此制冷剂蒸气迁移到吸收器以与浓缩溶液结合以产生稀溶液; 用于从用于再循环到蒸发器的稀释溶液中除去一部分制冷剂并用于提供浓缩溶液的浓缩器; 用于将稀溶液供应到浓缩器的装置; 以及用于控制供给到吸收器的浓缩溶液的浓度以控制制冷系统的制冷量的装置。 控制系统包括用于感测蒸发器入口和出口处和吸收器内的温度变化的装置，用于提供指示感测到的温度变化的第一，第二和第三跟踪信号输出，第一跟踪信号输出指示温度变化 在蒸发器入口处的流体的第二跟踪信号输出指示蒸发器出口处的流体的温度变化，并且第三跟踪信号输出指示吸收器中温度的变化。