Double-pipe heat exchanger
    21.
    发明申请

    公开(公告)号:US20050051310A1

    公开(公告)日:2005-03-10

    申请号:US10728788

    申请日:2003-12-08

    CPC分类号: F28F1/06 F28D7/106

    摘要: It is an object of the invention to provide an inexpensive double-pipe heat exchanger having high performance and comprising an inner pipe and an outer pipe which constitute a double pipe without adding a heat-transfer facilitating material such as an inner fin. In the double-pipe heat exchanger having the inner pipe and the outer pipe, the outer pipe is dented from its outside toward its inside, thereby forming a plurality of projections which are dented toward the inner pipe. Examples of shapes of the projection are substantially conical shape, substantially truncated shape, substantially spherical surface shape, substantially cylindrical shape, substantially elliptic cylindrical shape and the like. The projections are disposed helically or in a staggered configuration such as to surround the inner pipe. With this structure, only by subjecting the outer pipe to simple working such as press working, it is possible to increase the turbulent flow of fluid flowing between the inner pipe and the outer pipe, and to facilitate heat transfer from fluid flowing in the inner pipe to fluid flowing between the inner pipe and the outer pipe.

    Modular shelving unit
    22.
    发明授权
    Modular shelving unit 失效
    模块化搁架单元

    公开(公告)号:US06241108B1

    公开(公告)日:2001-06-05

    申请号:US09430963

    申请日:1999-11-01

    IPC分类号: A47B4700

    CPC分类号: A47B87/0207 A47B57/265

    摘要: A modular shelving unit includes at least three upright posts spaced apart from each other for supporting a shelf between them. At least one of the at least three posts includes at least two tubular members and at least one interconnecting member for detachably interconnecting adjacent, tubular members via attaching means. The at least two tubular members each have opposite edges and an inner circumferential wall defining annular inclined surfaces. The annular inclined surfaces are radially and outwardly inclined, as they advance to adjacent edges of the opposite edges. The interconnecting member has an outer circumferential wall with opposite end portions and a flange-like stopper radially and outwardly projecting from the outer circumferential wall. The adjacent tubular members are interconnected to the interconnecting member via the attaching means with mutually facing edges of the adjacent tubular members abutting each other. The annular inclined surfaces of the adjacent tubular members together form a positioning groove continuously extending along The abutting edges of the adjacent tubular members, and the flange-like stopper is fitted into the positioning groove with the flange-like stopper resting on the inclined surfaces of the positioning groove.

    摘要翻译: 模块化搁架单元包括至少三个彼此间隔开的直立柱,用于支撑它们之间的架子。 所述至少三个柱中的至少一个包括至少两个管状构件和至少一个互连构件,用于经由连接装置可拆卸地互连相邻的管状构件。 所述至少两个管状构件各自具有相对的边缘和限定环形倾斜表面的内周壁。 环形倾斜表面径向和向外倾斜,因为它们前进到相对边缘的相邻边缘。 互连构件具有外周壁,其具有相对的端部和从外周壁径向向外突出的凸缘状止动件。 相邻的管状构件经由连接装置互连到互连构件,相邻管状构件的相互面对的边缘彼此邻接。 相邻管状部件的环形倾斜面一起形成沿着相邻的管状部件的邻接边缘连续延伸的定位槽,凸缘状的止动件装配到定位槽中,凸缘状的止动件搁置在 定位槽。

    Liquid circulation heating system
    23.
    发明授权
    Liquid circulation heating system 有权
    液体循环供热系统

    公开(公告)号:US08661840B2

    公开(公告)日:2014-03-04

    申请号:US12693774

    申请日:2010-01-26

    IPC分类号: F25B27/00

    摘要: A liquid circulation heating system performs air-heating by heating a liquid to produce a heated liquid and releasing heat of the heated liquid from a heating radiator. This liquid circulation heating system includes: a heat pump circuit for circulating a refrigerant, having a radiator for heating the liquid by radiating heat from the refrigerant; and a solar heating apparatus for heating the liquid by solar heat. In this liquid circulation heating system, a first passage passing through the radiator and a second passage passing through the solar heating apparatus are formed as passages through which the liquid flows to produce the heated liquid.

    摘要翻译: 液体循环加热系统通过加热液体来产生加热的液体并且从加热散热器释放加热的液体的热量来进行空气加热。 这种液体循环加热系统包括:用于循环制冷剂的热泵回路,具有用于通过从制冷剂中散热来加热液体的散热器; 以及通过太阳能加热液体的太阳能加热装置。 在这种液体循环加热系统中,通过散热器的第一通道和通过太阳能加热设备的第二通道形成为液体流过的通道,以产生加热的液体。

    Control method of refrigeration cycle apparatus and refrigeration cycle apparatus using the control method
    25.
    发明申请
    Control method of refrigeration cycle apparatus and refrigeration cycle apparatus using the control method 失效
    使用控制方法的制冷循环装置和制冷循环装置的控制方法

    公开(公告)号:US20060096306A1

    公开(公告)日:2006-05-11

    申请号:US11266494

    申请日:2005-11-04

    摘要: In a refrigeration cycle apparatus having an expansion mechanism, it is an object of the present invention to swiftly generate a pressure difference upstream and downstream of the expansion mechanism of, thereby enhancing the starting performance of the refrigeration cycle apparatus. In a control method of a refrigeration cycle apparatus comprising a compression mechanism 2, a utilizing-side heat exchanger 3, an expansion mechanism 5 for recovering power, a heat source-side heat exchanger 6, and heat source fluid transfer means 9 for transferring a heat source fluid to the heat source-side heat exchanger 6, revolution number of the heat source fluid transfer means 9 is made smaller than target revolution number or the heat source fluid transfer means 9 is stopped during a predetermined time after the compression mechanism 2 is started. With this method, when the compression mechanism 2 is started, the pressure difference can be generated upstream and downstream of the expansion mechanism 5 for a short time, the operation of the expansion mechanism 5 does not become unstable, vibration and noise can be prevented, and the refrigeration cycle apparatus can swiftly be started.

    摘要翻译: 在具有膨胀机构的制冷循环装置中,本发明的目的是迅速产生膨胀机构的上游和下游的压力差,从而提高制冷循环装置的起动性能。 在包括压缩机构2,利用侧热交换器3,用于回收电力的膨胀机构5,热源侧热交换器6和用于输送热源侧热交换器6的热源流体输送装置9的制冷循环装置的控制方法中, 热源流体到热源侧热交换器6,使得热源流体传递装置9的转数小于目标转数,或者在压缩机构2为压缩机构2之后的预定时间内热源流体转移装置9停止 开始了 利用这种方法,当压缩机构2启动时,可以在膨胀机构5的上游和下游短时间产生压力差,膨胀机构5的操作不会变得不稳定,可以防止振动和噪音, 可以迅速地开始制冷循环装置。

    Determining method of high pressure of refrigeration cycle apparatus
    26.
    发明授权
    Determining method of high pressure of refrigeration cycle apparatus 失效
    制冷循环装置高压确定方法

    公开(公告)号:US06854283B2

    公开(公告)日:2005-02-15

    申请号:US10658421

    申请日:2003-09-10

    摘要: It is an object of the present invention to reduce the constraint that the density ratio is constant as small as possible, and to obtain high power recovering effect in a wide operation range by using an expander which is operated in accordance with a flowing direction of refrigerant. A determining method of a high pressure of a refrigeration cycle apparatus in which a refrigeration cycle uses carbon dioxide as refrigerant and has a compressor, an outdoor heat exchanger, an expander and an indoor heat exchanger, and the refrigeration cycle including a bypass circuit provided in parallel to said expander, and a control valve which adjusts a flow rate of refrigerant flowing through said bypass circuit, said compressor being driven by power recover by said expander, wherein if an optimal high pressure of a first refrigeration cycle flowing through said expander and a second refrigeration cycle flowing through said bypass circuit is defined as Ph, and a bypass amount ratio flowing through said bypass circuit in said Ph is defined as Rb0, and a maximum refrigeration cycle efficiency of said first refrigeration cycle in said Ph is defined as COPe, and a maximum refrigeration cycle efficiency of said second refrigeration cycle in said Ph is defined as COPb, the optimal high pressure Ph which maximizes (1−Rb0)×COPe+Rb0×COPb is determined.

    摘要翻译: 本发明的一个目的是减小密度比恒定的约束尽可能小,并且通过使用根据制冷剂的流动方向操作的膨胀机在宽的运行范围内获得高功率回收效果 。 一种制冷循环装置的高压确定方法,其中制冷循环使用二氧化碳作为制冷剂,并具有压缩机,室外热交换器,膨胀机和室内热交换器,并且制冷循环包括设置在旁路回路 平行于所述膨胀机的调节阀,调节流过所述旁通回路的制冷剂的流量的控制阀,所述压缩机由所述膨胀机的功率回收驱动,其中如果流过所述膨胀机的第一制冷循环的最佳高压和 流过所述旁路回路的第二制冷循环被定义为Ph,并且流过所述Ph中的所述旁路回路的旁路量比定义为Rb0,并且将所述Ph中的所述第一制冷循环的最大制冷循环效率定义为COPe, 并且所述Ph中的所述第二制冷循环的最大制冷循环效率被定义为COPb,最佳的高 确定使(1-Rb0)xCOPe + Rb0xCOPb最大化的h压力Ph。