Refrigerating air-conditioning apparatus
    5.
    发明授权
    Refrigerating air-conditioning apparatus 失效
    制冷空调机

    公开(公告)号:US6003323A

    公开(公告)日:1999-12-21

    申请号:US954230

    申请日:1997-10-20

    摘要: In order to modify the composition of a non-azeotropic mixed refrigerant circulating through the refrigeration cycle of a refrigerating and air-conditioning apparatus using a refrigerant rectifier column, the level of the liquid refrigerant rich in the low-boiling point fraction that is obtained from a refrigerant rectifier column (11) and which collects in a refrigerant container (14), as well as the level of the liquid refrigerant rich in the high-boiling point fraction that collects in an accumulator (6) are adjusted so as to modify the composition of the refrigerant circulating through the refrigeration cycle. The circuit structure can be made simple, and the energy need not be supplied during the cooling and heating operations to modify the composition of the non-azeotropic mixed refrigerant.

    摘要翻译: 为了改变在使用制冷剂精馏塔的制冷空调装置的制冷循环中循环的非共沸混合制冷剂的组成,富含低沸点馏分的液体制冷剂的液位从 制冷剂精馏塔(11),其收集在制冷剂容器(14)中,并且调节富集在蓄压器(6)中的高沸点馏分中的液体制冷剂的液位,以便改变 通过制冷循环循环的制冷剂的组成。 可以使电路结构简单,并且在冷却和加热操作期间不需要提供能量来改变非共沸混合制冷剂的组成。

    Refrigerant circulating system
    8.
    发明授权
    Refrigerant circulating system 失效
    制冷循环系统

    公开(公告)号:US5737931A

    公开(公告)日:1998-04-14

    申请号:US668155

    申请日:1996-06-21

    摘要: A refrigerant circulating system using non-azeothropic mixture as refrigerant, which comprises: a main refrigerant circuit connected by a compressor, a fore-way valve, an outdoor heat-exchanger, a first throttling device, a plurality of indoor heat-exchangers, and a low-pressure receiver; a bypass circuit diverging from the discharge portion of the compressor, and extending through a composition detecting heat-exchanger and a second throttling device to a low-pressure portion; an outdoor fun attendant of the outdoor heat-exchanger; first temperature detector to detect a refrigerant temperature at the upstream of the second throttling device; second temperature detector to detect a refrigerant temperature at the downstream of the second throttling device; first pressure detector to detect a pressure at the downstream of the second throttling device; third temperature detector to detect temperature in the main circuit between the first throttling device and the indoor heat-exchanger; forth temperature detector to detect temperature at the low-pressure portion; second pressure detector to detect the pressure at the high-pressure portion; a composition calculating device for calculating the composition of the mixture refrigerant; a main controller for controlling the number of rotation of the compressor and the number of rotation of an outdoor fun; a throttle controller for controlling the opening of the first throttling device.

    摘要翻译: 一种使用非旋风混合物作为制冷剂的制冷剂循环系统,包括:通过压缩机,前置阀,室外热交换器,第一节流装置,多个室内热交换器连接的主制冷剂回路,以及 低压接收器; 从压缩机的排出部分分流的旁路回路,通过组分检测热交换器和第二节流装置延伸到低压部分; 室外热交换器的户外乐趣服务员; 第一温度检测器,用于检测第二节流装置上游的制冷剂温度; 第二温度检测器,用于检测第二节流装置下游的制冷剂温度; 第一压力检测器,用于检测第二节流装置下游的压力; 第三温度检测器,用于检测第一节流装置和室内热交换器之间的主回路中的温度; 检测低压部分的温度; 第二压力检测器,用于检测高压部分的压力; 用于计算混合制冷剂的组成的组成计算装置; 用于控制压缩机的旋转次数和户外乐趣的旋转次数的主控制器; 用于控制第一节流装置的打开的节气门控制器。

    Method of producing a plate-type heat exchanger
    9.
    发明授权
    Method of producing a plate-type heat exchanger 失效
    板式热交换器的制造方法

    公开(公告)号:US5644840A

    公开(公告)日:1997-07-08

    申请号:US422171

    申请日:1995-04-14

    摘要: To eliminate a fear of electrolytic corrosion even in the case where a heat exchanger to be connected to the outside of the plate-type heat exchanger has a copper piping, and to prevent any damage from being given to the brazed portions of the plate-type heat exchanger at the time of joining pipes and to prevent faults from being generated in joined portions. An intermediate pipe made of a material in which the value of polarization potential becomes lower than that generated between a body of the plate-type heat exchanger and the copper piping is interposed between the plate-type heat exchanger body and the copper piping. Further, the plate-type heat exchanger body is disposed in a position out of a vertical line of a joined portion between the copper piping and the intermediate pipe. Further, a joint constituted by an intermediate pipe and a copper pipe joined in advance through brazing or welding at a temperature higher than a temperature of brazing of the plate-type heat exchanger body is brazed at the same time of brazing of the plate-type heat exchanger body under the condition that the joint is arranged so that the intermediate pipe side of the joint is joined with the end plate of the heat exchanger body.

    摘要翻译: 为了消除电解腐蚀的恐惧,即使在与板式热交换器的外部连接的热交换器具有铜管道的情况下,并且为了防止对板式热交换器的钎焊部分造成任何损坏 在连接管道时的热交换器,并且防止在接合部分中产生故障。 由板式热交换器主体和铜管之间插入由极板电位值低于板式热交换器的主体与铜管之间的极化电位值的材料构成的中间管。 此外,板式热交换器体设置在铜管和中间管之间的接合部的垂直线以外的位置。 此外,在板式热交换器主体的钎焊温度以上的温度下通过钎焊或焊接预先接合的中间管和铜管构成的接头在与板式热交换器的钎焊同时进行钎焊 热交换器主体在接头被布置成使得接头的中间管侧与热交换器主体的端板接合的条件下进行。