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    • 1. 发明授权
    • Air conditioning system
    • 空调系统
    • US5924480A
    • 1999-07-20
    • US93270
    • 1998-06-08
    • Hidetoshi ArimaNobuhiro IdeiMamoru KuboMasashi Izumi
    • Hidetoshi ArimaNobuhiro IdeiMamoru KuboMasashi Izumi
    • F24F5/00F25B15/00F25B25/00F28D15/00
    • F24F5/0014F25B25/005F25B15/00
    • An air conditioning system comprises a heat source side machine such as an absorption type refrigerator, a plurality of user side machines more than half of which are disposed below the heat source side machine, and liquid phase and gas phase pipes connecting the heat source side machine with the user side machines to form a closed circuit. A phase-changeable fluid circulates between the heat source side machine and the user side machines by utilizing its own specific gravity difference between the liquid and gas phases and a driving force of an electric pump provided to the liquid phase pipe, so that each of the user side machines can perform cooling operation. A receiver tank is provided to the inlet side of the electric pump, and an upper portion of the receiver tank is connected to the gas phase pipe by a pressure-equalizing pipe so as to improve a start characteristic of the cooling operation. Moreover, the fluid transported from the electric pump is recooled in the heat source side machine so that the fluid heated by the electric pump does not generate bubbles in the liquid phase pipe when being transported to the user side machine that performs cooling operation.
    • 一种空调系统,包括吸收型冰箱等热源侧机器,其一半以上的用户侧机器设置在热源侧机器的下方,连接热源侧机器的液相气相管 用户侧机器形成闭路。 相变液体通过利用其自身的液相和气相之间的比重差和设置在液相管的电动泵的驱动力,在热源侧机器和使用者机器之间循环, 用户侧机器可以执行制冷操作。 接收罐设置在电动泵的入口侧,并且接收罐的上部通过均压管连接到气相管,以提高冷却操作的启动特性。 此外,从电动泵输送的流体在热源侧机器中被重新冷却,使得当被输送到执行冷却操作的用户侧机器时,由电动泵加热的流体在液相管中不会产生气泡。
    • 2. 发明授权
    • Air conditioning system
    • 空调系统
    • US5966954A
    • 1999-10-19
    • US984017
    • 1997-12-03
    • Hidetoshi ArimaNobuhiro IdeiMasashi IzumiAkira HatakeyamaHiroyuki Takada
    • Hidetoshi ArimaNobuhiro IdeiMasashi IzumiAkira HatakeyamaHiroyuki Takada
    • F24F3/06F25B15/00F25B23/00F25B25/00F25B5/02
    • F24F3/065F25B25/005F25B15/00F25B23/006
    • An air conditioning system comprises a heat source side unit adapted to condense and supply a fluid which can change a phase between a gas phase and a liquid phase and a plurality of user side units entirely or mostly disposed below the heat source side unit in terms of number and connected to said heat source side unit by piping so as to establish a circulation of the fluid supplied from said heat source side unit passing through said heat source side unit and said user side units by utilizing the difference in specific gravity between the liquid phase and the gas phase of said liquid so that it can provide a cooling/heating effect regardless of the floors where the user side units are installed and the power consumption rate of the system can be minimized. More specifically, the heat source side unit 1 and the user side units 4 arranged below the heat source side unit 1 are connected by way of liquid phase piping 6 and gas phase piping 7 to form a closed circuit 3 and a motor pump 10 is arranged along the liquid phase piping 6. Refrigerant R-134a is condensed in the heat source side unit 1 and sent to the user side units 4 by the motor pump 10 in the cooling mode of operation, whereas it is condensed in the user side units 4 and sent to the heat source side unit 1 by the motor pump 10 in the heating mode of operation. The number of revolutions per unit time of the motor pump is controlled modifying the number of poles of the pump or the frequency of the AC fed to the pump.
    • 一种空调系统,包括:热源侧单元,其适于冷凝和供应可以改变气相和液相之间的相的流体和多个用户侧单元,其全部或大部分设置在热源侧单元下方 并且通过管道连接到所述热源侧单元,以便通过利用液相之间的比重差来建立从通过所述热源侧单元和所述用户侧单元的所述热源侧单元供应的流体的循环 和所述液体的气相,使得其可以提供冷却/加热效果,而不管安装用户侧单元的楼层如何,并且系统的功率消耗率可以最小化。 更具体地说,布置在热源侧单元1下方的热源侧单元1和用户侧单元4通过液相管道6和气相管道7连接以形成闭路3,并且电动机泵10布置 制冷剂R-134a在热源侧单元1中被冷凝,并且在冷却操作模式下通过电动泵10被发送到用户侧单元4,而在用户侧单元4中被冷凝 并在加热工作模式下由电动泵10送到热源侧机组1。 控制电机泵的每单位时间的转数来控制泵的极数或馈送到泵的AC的频率。
    • 3. 发明授权
    • Air conditioning system
    • 空调系统
    • US06220341B1
    • 2001-04-24
    • US09195471
    • 1998-11-18
    • Masashi IzumiNobuhiro IdeiAkira HatakeyamaToshio KuboMamoru Kubo
    • Masashi IzumiNobuhiro IdeiAkira HatakeyamaToshio KuboMamoru Kubo
    • F28D1500
    • F28D15/0266F25B25/005
    • An air conditioning system comprises a heat source side machine, a plurality of user side machines more than half of which are disposed below the heat source side machine, and liquid phase and gas phase pipes connecting the heat source side machine with the user side machines to form a closed circuit. A phase-changeable fluid included in the closed circuit circulates by utilizing its own specific gravity difference between the liquid and gas phases, so that each of the user side machines can perform cooling and heating operations. The liquid phase pipe and the gas phase pipe can communicate with each other via a gas bypass circuit and/or a liquid bypass circuit including a open-close valve and liquid level detection means, so that bubbles or condensed liquid generated in the closed circuit can be exhausted quickly.
    • 一种空调系统,包括热源侧机器,多于一半的用户侧机器设置在热源侧机器下方,液相和气相管道将热源侧机器与用户侧机器连接 形成闭路。 封闭回路中包含的相变液体利用其自身的液相和气相之间的比重差循环,从而每个用户侧机器都可进行冷却和加热操作。 液相管和气相管可以通过气体旁路回路和/或包括开关阀和液面检测装置的液体旁通回路相互连通,使得闭合回路中产生的气泡或冷凝液体可以 快速耗尽
    • 5. 发明授权
    • Heat exchanger tube for falling film evaporator
    • 降膜蒸发器换热管
    • US06173762B1
    • 2001-01-16
    • US08271635
    • 1994-07-07
    • Seiji IshidaTomio HigoTetsuo UchidaMasahiro FurukawaMasashi IzumiKazuhiro Yoshii
    • Seiji IshidaTomio HigoTetsuo UchidaMasahiro FurukawaMasashi IzumiKazuhiro Yoshii
    • F28F1318
    • F28F13/187F28F1/42F28F1/422
    • A heat exchanger tube for a falling film evaporator has fins provided on the outer periphery of the tube body and extending in a direction transverse or in oblique to the axial direction of the tube. The fins have heights in a range of 0.2 to 0.8 mm. The fins are arranged in a density to have 905 to 1102 in number of fins per 1 m in the axial direction. Grooves formed in the tip end of the fins and extending substantially along the fins, the mutually opposing inner peripheral wall surface of the groove defining an angle within a range of 70° to 150°. Cut-outs formed in the tip end of the fins, the cut-outs being provided at a pitch in a range of 0.5 to 1.0 mm. With this construction, the heat exchanger tube for the falling film evaporator which exhibits a high refrigerant wetting and spreading ability as well as large surface area for providing remarkably improved heat transmission performance.
    • 用于降膜蒸发器的热交换器管具有翅片,其设置在管体的外周上并且沿着与管的轴向方向横向或倾斜的方向延伸。 翅片的高度在0.2到0.8毫米的范围内。 散热片以密度排列,每轴1个散热片的数量为905〜1102。 形成在翅片的尖端中并基本上沿翼片延伸的槽,槽的相互相对的内周壁表面限定在70°至150°的范围内的角度。 在翅片的前端形成切口,切口以0.5至1.0mm的间距设置。 利用这种结构,降膜蒸发器的热交换器管具有高的制冷剂润湿和铺展能力以及大的表面积,以提供显着提高的传热性能。