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1.发明公开Multi-unit air conditioner, outdoor unit thereof and method of controlling refrigerant pressure 有权MultitypeKlimagerätmitAußeneinheitund Verfahren zurKühlmitteldruckregelung
公开(公告)号：EP2224180A1
公开(公告)日：2010-09-01
申请号：EP10154664.6
申请日：2010-02-25
CPC分类号： F24F3/065 , F24F11/83 , F24F2110/40 , F25B13/00 , F25B49/027 , F25B2313/0233 , F25B2313/02741 , F25B2400/13 , F25B2500/01 , F25B2500/06 , F25B2600/2513 , F25B2700/171 , F25B2700/191 , F25B2700/1931
摘要： The opening control of a pressure reducing expansion valve 40 is performed only when the refrigerant pressure on the high-pressure side in an outdoor unit 10 is high during a cooling operation. The opening of the valve 40 is determined on the basis of the driving frequency of a compressor 16 at that point in time, i.e., the volumetric flow rate of a refrigerant. A pressure reduction in the valve 40 is suppressed when the volumetric flow rate of the refrigerant is large and a pressure loss in a communication pipe 30 is large, and the pressure reduction in the valve 40 is increased when the volumetric flow rate of the refrigerant is small and a pressure loss in a communication pipe 30 is small, whereby the amount of pressure reduction of the refrigerant is adjusted in the total refrigerant circuit from the compressor 16 to an indoor expansion valve 22.
摘要翻译： 减压膨胀阀40的打开控制仅在制冷运转时室外机10的高压侧的制冷剂压力高的情况下进行。 阀40的开度基于压缩机16在该时间点的驱动频率，即制冷剂的体积流量来确定。 当制冷剂的体积流量大并且连通管30中的压力损失大时，阀40的压力降低被抑制，并且当制冷剂的体积流量为 连通配管30的压力损失少，压缩机16的制冷剂循环中的制冷剂的减压量被调节到室内膨胀阀22。
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公开(公告)号：EP1914493B8
公开(公告)日：2012-09-26
申请号：EP07118087.1
申请日：2007-10-09
CPC分类号： F25B31/004 , F25B13/00 , F25B49/02 , F25B2313/023 , F25B2500/01 , F25B2500/16 , F25B2600/2513
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公开(公告)号：EP2375192A2
公开(公告)日：2011-10-12
申请号：EP10180509.1
申请日：2010-09-28
CPC分类号： F25B13/00 , F25B31/004 , F25B2313/0233 , F25B2400/075 , F25B2600/0253 , F25B2600/21 , F25B2600/23 , Y02B30/741
摘要： The air-conditioning apparatus includes compressors (13A) and (13B) having an oil equalizing pipe (45), an accumulator (29), feedback piping (43A) and (43B) that supply liquid refrigerant in the accumulator (29) to the suction side of the compressors (13A) and (13B), and a controller (51) having an oil-equalizing control mode (53) in which the amounts of lubricating oil stored individually in the compressors (13A) and (13B) are kept at or above a certain level. The oil-equalizing control mode (53) includes a feedback step of setting the rotation speeds of the compressors (13A) and (13B) to a working rotation speed and supplying the liquid refrigerant from the accumulator (29) to the compressors (13A) and (13B), and an oil equalizing step of increasing or decreasing the rotation speeds of the compressors (13A) and (13B) from an operating rotation speed by a rotation speed difference so that the rotation speeds differ from each other. The feedback work amount of the feedback step is changed in accordance with the dilution level of the lubricating oil in the liquid refrigerant in the accumulator (29), and the oil-equalizing work amount of the oil equalizing step is changed in accordance with the dilution level of the lubricating oil in the compressors.
摘要翻译： 该空气调节装置包括具有均油管45，储液器29，反馈配管43A，（43B）的压缩机13A和13B，该压缩机13A和13B将储液器29内的液体制冷剂供给到 （13A），（13B）的吸入侧和具有均油控制模式（53）的控制器（51），其中保持单独储存在压缩机（13A）和（13B）中的润滑油量 达到或超过一定水平。 均油控制模式53包括将压缩机13A，13B的转速设定为工作转速并将来自蓄压器29的液体制冷剂供给压缩机13A的反馈工序， 和（13B）;以及油平衡步骤，使压缩机（13A）和（13B）的转速从运转转速增大或减小转速差，以使转速彼此不同。 反馈工序的反馈工作量根据储罐（29）中的液体制冷剂中的润滑油的稀释水平而变化，并且均油工序的均油工作量根据稀释 压缩机中润滑油的水平。
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公开(公告)号：EP2375192A3
公开(公告)日：2014-01-29
申请号：EP10180509.1
申请日：2010-09-28
CPC分类号： F25B13/00 , F25B31/004 , F25B2313/0233 , F25B2400/075 , F25B2600/0253 , F25B2600/21 , F25B2600/23 , Y02B30/741
摘要： The air-conditioning apparatus includes compressors (13A) and (13B) having an oil equalizing pipe (45), an accumulator (29), feedback piping (43A) and (43B) that supply liquid refrigerant in the accumulator (29) to the suction side of the compressors (13A) and (13B), and a controller (51) having an oil-equalizing control mode (53) in which the amounts of lubricating oil stored individually in the compressors (13A) and (13B) are kept at or above a certain level. The oil-equalizing control mode (53) includes a feedback step of setting the rotation speeds of the compressors (13A) and (13B) to a working rotation speed and supplying the liquid refrigerant from the accumulator (29) to the compressors (13A) and (13B), and an oil equalizing step of increasing or decreasing the rotation speeds of the compressors (13A) and (13B) from an operating rotation speed by a rotation speed difference so that the rotation speeds differ from each other. The feedback work amount of the feedback step is changed in accordance with the dilution level of the lubricating oil in the liquid refrigerant in the accumulator (29), and the oil-equalizing work amount of the oil equalizing step is changed in accordance with the dilution level of the lubricating oil in the compressors.
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公开(公告)号：EP1914493A2
公开(公告)日：2008-04-23
申请号：EP07118087.1
申请日：2007-10-09
IPC分类号： F25B31/00
CPC分类号： F25B31/004 , F25B13/00 , F25B49/02 , F25B2313/023 , F25B2500/01 , F25B2500/16 , F25B2600/2513
摘要： An air-conditioning apparatus (1) capable of reliably recovering lubricant accumulated in indoor units (3A,3B,3C) and their refrigerant circuit, regardless of the refrigerant-pipe length differences of the indoor units connected to each other, has been desired, and includes an operating unit (22) configured to carry out liquid return at each indoor unit, to carry out an oil-recovery operation for recovering lubricant accumulated in the refrigerant circuit, and to complete the oil-recovery operation when liquid return is detected at the outdoor unit (2). The operating unit includes a detecting unit configured to detect the refrigerant pipe length of each of the indoor units, a storing unit configured to store the refrigerant pipe lengths detected by the detecting unit, and a control unit configured to change the operation time during the oil-recovery operation on the basis of the refrigerant pipe length of each of the indoor units stored in the storing unit.
摘要翻译： 期望能够可靠地回收蓄积在室内机（3A，3B，3C）中的润滑剂及其制冷剂回路的空气调节装置（1），而不管彼此连接的室内单元的制冷剂管长度差异如何。 并且具备构造成在各室内单元进行液体返回的操作单元（22），进行用于回收蓄积在制冷剂回路中的润滑油的回油运转，并且在检测到液体返回时完成油回收操作 室外机组（2）。 操作单元包括检测单元，该检测单元被配置为检测每个室内单元的制冷剂管道长度;存储单元，被配置为存储由检测单元检测到的制冷剂管道长度;以及控制单元，其被配置为改变油中的操作时间 - 基于存储在存储单元中的每个室内单元的制冷剂管道长度来进行恢复操作。
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6.发明授权Multi-unit air conditioner, outdoor unit thereof and method of controlling refrigerant pressure 有权多单元空调器，其室外单元和控制制冷剂压力的方法
公开(公告)号：EP2224180B1
公开(公告)日：2017-11-01
申请号：EP10154664.6
申请日：2010-02-25
CPC分类号： F24F3/065 , F24F11/83 , F24F2110/40 , F25B13/00 , F25B49/027 , F25B2313/0233 , F25B2313/02741 , F25B2400/13 , F25B2500/01 , F25B2500/06 , F25B2600/2513 , F25B2700/171 , F25B2700/191 , F25B2700/1931
摘要： The opening control of a pressure reducing expansion valve 40 is performed only when the refrigerant pressure on the high-pressure side in an outdoor unit 10 is high during a cooling operation. The opening of the valve 40 is determined on the basis of the driving frequency of a compressor 16 at that point in time, i.e., the volumetric flow rate of a refrigerant. A pressure reduction in the valve 40 is suppressed when the volumetric flow rate of the refrigerant is large and a pressure loss in a communication pipe 30 is large, and the pressure reduction in the valve 40 is increased when the volumetric flow rate of the refrigerant is small and a pressure loss in a communication pipe 30 is small, whereby the amount of pressure reduction of the refrigerant is adjusted in the total refrigerant circuit from the compressor 16 to an indoor expansion valve 22.
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公开(公告)号：EP1914493B1
公开(公告)日：2012-07-11
申请号：EP07118087.1
申请日：2007-10-09
CPC分类号： F25B31/004 , F25B13/00 , F25B49/02 , F25B2313/023 , F25B2500/01 , F25B2500/16 , F25B2600/2513
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公开(公告)号：EP1914493A3
公开(公告)日：2011-06-08
申请号：EP07118087.1
申请日：2007-10-09
CPC分类号： F25B31/004 , F25B13/00 , F25B49/02 , F25B2313/023 , F25B2500/01 , F25B2500/16 , F25B2600/2513
摘要： An air-conditioning apparatus (1) capable of reliably recovering lubricant accumulated in indoor units (3A,3B,3C) and their refrigerant circuit, regardless of the refrigerant-pipe length differences of the indoor units connected to each other, has been desired, and includes an operating unit (22) configured to carry out liquid return at each indoor unit, to carry out an oil-recovery operation for recovering lubricant accumulated in the refrigerant circuit, and to complete the oil-recovery operation when liquid return is detected at the outdoor unit (2). The operating unit includes a detecting unit configured to detect the refrigerant pipe length of each of the indoor units, a storing unit configured to store the refrigerant pipe lengths detected by the detecting unit, and a control unit configured to change the operation time during the oil-recovery operation on the basis of the refrigerant pipe length of each of the indoor units stored in the storing unit.
摘要翻译： 期望不管相互连接的室内单元的制冷剂管长差如何，能够可靠地回收积存在室内单元（3A，3B，3C）及其制冷剂回路中的润滑剂的空气调节装置（1） 并且包括操作单元（22），所述操作单元（22）被配置为在每个室内单元处执行液体返回，执行用于回收积聚在制冷剂回路中的润滑剂的油回收操作，并且在检测到液体回流时完成油回收操作 室外单元（2）。 操作单元包括：检测单元，配置为检测每个室内单元的制冷剂管道长度;存储单元，配置为存储由检测单元检测到的制冷剂管道长度;以及控制单元，配置为改变油过程中的操作时间 - 基于存储在存储单元中的每个室内单元的制冷剂管长度的恢复操作。
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