REFRIGERATION APPARATUS
    21.
    发明申请
    REFRIGERATION APPARATUS 有权
    制冷装置

    公开(公告)号:US20100257894A1

    公开(公告)日:2010-10-14

    申请号:US12744439

    申请日:2008-11-26

    IPC分类号: F25B1/10 F25B41/00 F25B29/00

    摘要: A refrigeration apparatus uses a refrigerant that operates in a region including critical processes, and includes a compression mechanism having first and second compressors, a heat-source-side heat exchanger, an expansion mechanism, a utilization-side heat exchanger, an intercooler, and an intermediate refrigerant pipe. The first compressor has a first low-pressure compression element and a first high-pressure compression element to increase pressure of refrigerant more than the first low-pressure compression element. The second compressor has a second low-pressure compression element and a second high-pressure compression element to increase pressure of refrigerant more than the second low-pressure compression element. The intermediate refrigerant pipe causes refrigerant discharged by the first and second low-pressure compression elements to pass through the intercooler and be sucked into first and second high-pressure the compression elements. The intake sides of the first and second low-pressure compression elements are connected. The discharge sides of the first and second high-pressure compression elements merge.

    摘要翻译: 制冷装置使用在包括关键工序的区域中工作的制冷剂,并且包括具有第一和第二压缩机的压缩机构,热源侧热交换器,膨胀机构,利用侧热交换器,中间冷却器和 中间制冷剂管。 第一压缩机具有第一低压压缩元件和第一高压压缩元件,以使第一低压压缩元件和第一高压压缩元件相比第一低压压缩元件增加制冷剂的压力。 第二压缩机具有第二低压压缩元件和第二高压压缩元件,以增加制冷剂的压力,而不是第二低压压缩元件。 中间制冷剂管使得由第一和第二低压压缩元件排出的制冷剂通过中间冷却器,并被吸入第一和第二高压压缩元件。 连接第一和第二低压压缩元件的进气侧。 第一和第二高压压缩元件的排出侧合并。

    Refrigerating Apparatus Assembling Method
    22.
    发明申请
    Refrigerating Apparatus Assembling Method 审中-公开
    制冷装置组装方法

    公开(公告)号:US20080141524A1

    公开(公告)日:2008-06-19

    申请号:US11883239

    申请日:2006-01-31

    申请人: Atsushi Yoshimi

    发明人: Atsushi Yoshimi

    IPC分类号: B23P15/26

    摘要: After a refrigerant circuit (10) is formed by connecting a user side circuit (12) and a heat source side circuit (11) by means of a communication pipe (45), a compressor (21) is driven to circulate refrigerant in the refrigerant circuit (10) in a communication pipe cleaning step. Circulation of the refrigerant in the refrigerant circuit (10) peels off oxide which has been deposited on the inner face of the communication pipe (45) by brazing in the communication pipe forming step. The peeled oxide is forced to flow by the refrigerant to be collected on the upstream side of the compressor (21) in the heat source side circuit (11).

    摘要翻译: 在通过连通管(45)连接使用者侧回路(12)和热源侧回路(11)而形成制冷剂回路(10)之后,驱动压缩机21使制冷剂中的制冷剂循环 电路(10)。 制冷剂回路10中的制冷剂的循环通过在连通管形成步骤中钎焊而沉积在连通管45的内表面上的氧化物。 被剥离的氧化物被迫在热源侧电路(11)的压缩机(21)的上游侧被收集的制冷剂流动。

    Refrigeration device
    23.
    发明申请
    Refrigeration device 有权
    制冷装置

    公开(公告)号:US20060179873A1

    公开(公告)日:2006-08-17

    申请号:US10551193

    申请日:2004-03-31

    IPC分类号: F25B43/00 F25B45/00

    摘要: Disposed is a contaminant recovery receptacle (40) which is connected, through an inflow pipe (42) and an outflow pipe (43), to the suction side of a compressor (21). The inflow pipe (42) has an exit end which opens towards the inner bottom of the recovery receptacle (40). The outflow pipe (43) has an entrance end which is situated above the exit end of the inflow pipe (42) in the recovery receptacle (40). Firstly, a preliminary operation is carried out which causes refrigerant to circulate in a refrigerant circuit (10) for a predetermined length of time so that gas-liquid two-phase refrigerant flows into the recovery receptacle (40). Thereafter, a recovery operation is carried out, which causes refrigerant to circulate in the refrigerant circuit (10) so that gas refrigerant flows into the recovery receptacle (40). As a result, contaminants are recovered in the recovery receptacle (40).

    摘要翻译: 设置有通过流入管(42)和流出管(43)连接到压缩机(21)的吸入侧的污染物回收容器(40)。 流入管(42)具有朝向回收容器(40)的内底部开口的出口端。 流出管(43)的入口端位于回收容器(40)内的流入管(42)的出口端的上方。 首先,进行使制冷剂在制冷剂回路(10)中循环预定时间长度的预备操作,使得气液两相制冷剂流入回收容器(40)。 此后,进行恢复操作,这使制冷剂在制冷剂回路(10)中循环,使得气体制冷剂流入回收容器(40)。 结果,在回收容器(40)中回收污染物。

    Refrigerant pipe washing method, air conditioner replacement method, and air conditioner
    24.
    发明申请
    Refrigerant pipe washing method, air conditioner replacement method, and air conditioner 有权
    制冷管道清洗方法,空调更换方法和空调

    公开(公告)号:US20050198994A1

    公开(公告)日:2005-09-15

    申请号:US10521020

    申请日:2004-02-04

    摘要: A method is disclosed that makes it possible to reduce the amount of refrigerant used and shorten the amount of time over which the new air conditioner must be run in a refrigerant pipe washing mode when an air conditioner that used a mineral-oil-based refrigerant oil is updated to or replaced with an air conditioner using an HFC refrigerant as the working refrigerant and the existing refrigerant piping is reused as is. Thus, the existing refrigerant piping of the air conditioner that used a mineral-oil-based refrigerant oil is reused in the air conditioner that uses an HFC refrigerant as the working refrigerant, the by washing the refrigerant piping using a cleaning agent comprising an HFC refrigerant containing at least 40 wt % of R32 to remove residual refrigerant oil in the refrigerant piping.

    摘要翻译: 公开了一种方法,当使用矿物油型制冷剂油的空调机时,可以减少使用的制冷剂量并缩短新型空调器在制冷剂管道清洗模式下必须运行的时间 更换为使用HFC制冷剂的空调机作为工作制冷剂,并且现有的制冷剂配管被再利用。 因此,使用矿物油型制冷剂油的空调机的现有的制冷剂配管在使用HFC制冷剂的空调机作为工作制冷剂中再利用,通过使用包含HFC制冷剂的清洗剂洗涤制冷剂配管 含有至少40重量%的R32以除去制冷剂管道中的残留制冷剂油。

    Refrigeration system
    25.
    发明授权
    Refrigeration system 有权
    制冷系统

    公开(公告)号:US07918106B2

    公开(公告)日:2011-04-05

    申请号:US12084938

    申请日:2006-11-27

    IPC分类号: F25B43/02

    摘要: A refrigerant circuit (15) is provided with a low-pressure stage oil separator (26) for separating refrigerating machine oil out of refrigerant discharged from a low-pressure stage compressor (21) and returning it to the suction side of the low-pressure stage compressor (21), and a high-pressure stage oil separator (36) for separating refrigerating machine oil out of refrigerant discharged from a high-pressure stage compressor (31) and returning it to the suction side of the high-pressure stage compressor (31). The efficiency of oil separation of the low-pressure stage oil separator (26) is set lower than that of the high-pressure stage oil separator (36).

    摘要翻译: 制冷剂回路(15)设有低压级油分离器(26),用于将从低压级压缩机(21)排出的制冷剂中的冷冻机油分离并将其返回到低压侧的吸入侧 将从高压级压缩机31排出的制冷剂中的冷冻机油分离并将其返回到高压级压缩机(21)的吸入侧的高压级分离器(36) (31)。 低压级油分离器(26)的油分离效率低于高压级油分离器(36)的效率。

    Freezer device
    28.
    发明申请
    Freezer device 失效
    冷冻装置

    公开(公告)号:US20060185376A1

    公开(公告)日:2006-08-24

    申请号:US10566726

    申请日:2004-08-19

    IPC分类号: F25B39/04 F25B49/00

    摘要: A refrigeration system comprises a refrigerant circuit (10) in which a compressor (21), an outdoor heat exchanger (24) and an indoor heat exchanger (33) are connected to operate on a refrigeration cycle, and an oil recovery container (40) connected to the suction side of the compressor (21), and carries out a recovery operation for circulating refrigerant through the refrigerant circuit (10) to recover oil into the recovery container (40). The refrigeration system further comprises: a compressor control section (50) for stepwise increasing the operating capacity of the compressor (21) in an initial stage of the recovery operation so that the refrigerant temperature in the low pressure side of the refrigerant circuit (10) reaches or exceeds a predetermined value; and a fan control section (70) for continuously driving an indoor fan (33a) at least during a time period when the compressor (21) is driven. This suppresses an abrupt start-up of the compressor (21) and ensures that refrigerant in the indoor heat exchanger (33) evaporates. Thus, a temperature drop of refrigerant in the low pressure side can be prevented.

    摘要翻译: 制冷系统包括:制冷剂回路(10),其中压缩机(21),室外热交换器(24)和室内热交换器(33)连接以在制冷循环中操作;以及油回收容器(40) 连接到压缩机21的吸入侧,并且执行用于使制冷剂循环通过制冷剂回路(10)以将油回收到回收容器(40)中的回收操作。 制冷系统还包括:压缩机控制部(50),用于在回收运转的初始阶段逐步增加压缩机(21)的运转能力,使得制冷剂回路(10)的低压侧的制冷剂温度, 达到或超过预定值; 以及风扇控制部(70),至少在压缩机(21)被驱动的时间段期间,连续地驱动室内风扇(33a)。 这抑制了压缩机21的突然启动,并且确保室内热交换器33中的制冷剂蒸发。 因此,能够防止低压侧的制冷剂的温度下降。

    Refrigerating apparatus
    29.
    发明申请
    Refrigerating apparatus 有权
    制冷装置

    公开(公告)号:US20060150664A1

    公开(公告)日:2006-07-13

    申请号:US10545705

    申请日:2004-11-24

    IPC分类号: F25D19/00 F25B43/04

    摘要: The capacity of a compressor (21) in cleaning operation is set based on a Froude number Fr. The Froude number Fr expresses a ratio of an inertial force of a gas refrigerant flowing through a gas side communication pipe (70) to a gravity working on a liquid in the gas side communication pipe (70). The capacity of the compressor (21) in the cleaning operation is set so that the Froude number Fr is larger than 1, whereby the inertial force of the gas refrigerant flowing through the gas side communication pipe (70) becomes larger than the gravity working on the liquid in the gas side communication pipe (70) which contains mineral oil and foreign matters. In this connection, the liquid containing the mineral oil and the foreign matters is pushed up by the gas refrigerant even in a perpendicularly extending portion of the gas side communication pipe (70). Thus, the mineral oil and the foreign matters remaining in the existing liquid side communication pipe (60) and the existing gas side communication pipe (70) are recovered.

    摘要翻译: 压缩机(21)在清洁操作中的容量基于弗劳德数Fr。 弗劳德数Fr表示流过气体侧连通管(70)的气体制冷剂的惯性力与在气体侧连通管(70)中的液体上的重力的比率。 在清洁操作中压缩机21的容量被设定为使得弗劳德数Fr大于1,从而流过气体侧连通管70的气体制冷剂的惯性力大于重力加载 气体侧连通管(70)中含有矿物油和异物的液体。 在这一点上,即使在气体侧连通管70的垂直延伸部分中,含有矿物油和异物的液体也被气体制冷剂推压。 因此,矿物油和留在现有的液体侧连通管(60)和现有的气体侧连通管(70)中的异物被回收。

    Refrigerant pipe washing method, air conditioner updating method, and air conditioner
    30.
    发明授权
    Refrigerant pipe washing method, air conditioner updating method, and air conditioner 有权
    制冷管道清洗方法,空调更新方法和空调

    公开(公告)号:US08844300B2

    公开(公告)日:2014-09-30

    申请号:US10521020

    申请日:2004-02-04

    IPC分类号: C09K5/04 F25B45/00

    摘要: A method is disclosed that makes it possible to reduce the amount of refrigerant used and shorten the amount of time over which the new air conditioner must be run in a refrigerant pipe washing mode when an air conditioner that used a mineral-oil-based refrigerant oil is updated to or replaced with an air conditioner using an HFC refrigerant as the working refrigerant and the existing refrigerant piping is reused as is. Thus, the existing refrigerant piping of the air conditioner that used a mineral-oil-based refrigerant oil is reused in the air conditioner that uses an HFC refrigerant as the working refrigerant, the by washing the refrigerant piping using a cleaning agent comprising an HFC refrigerant containing at least 40 wt % of R32 to remove residual refrigerant oil in the refrigerant piping.

    摘要翻译: 公开了一种方法,当使用矿物油型制冷剂油的空调机时,可以减少使用的制冷剂量并缩短新型空调器在制冷剂管道清洗模式下必须运行的时间 更换为使用HFC制冷剂的空调机作为工作制冷剂,并且现有的制冷剂配管被再利用。 因此,使用矿物油型制冷剂油的空调机的现有的制冷剂配管在使用HFC制冷剂的空调机作为工作制冷剂中再利用,通过使用包含HFC制冷剂的清洗剂洗涤制冷剂配管 含有至少40重量%的R32以除去制冷剂管道中的残留制冷剂油。