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1. 发明公开

EP2020509A2 Centrifugal compressor, impeller and operating method of the same 有权转让
标题翻译： Zentrifugalkompressor，Zentrifugallaufrad und Betriebsverfahrendafür
公开(公告)号：EP2020509A2
公开(公告)日：2009-02-04
申请号：EP08013769.8
申请日：2008-07-31
申请人： Hitachi Plant Technologies, Ltd.
发明人： Yagi, Manabu , Kishibe, Tadaharu , Shibata, Takanori , Nishida, Hideo , Kobayashi, Hiromi , Kuwano, Tetsuya
IPC分类号： F04D29/28 , F04D29/30
CPC分类号： F04D29/284 , F04D29/30
摘要： It is an object of the prevent invention to provide a centrifugal compressor equipped with an impeller having a blade angle distribution that makes it possible to achieve a relatively wide operating range. In a centrifugal compressor, assuming that a blade angle of a shroud side facing a circular plate of a blade is a first angle and a blade angle of a hub side disposed at the circular plate is a second angle, the shroud side is formed in a curved shape having an angle distribution from a front area in a shaft direction toward a centrifugal direction in which the first angle is the local maximum point before a substantially middle portion and the local minimum point after the substantially middle point, and the hub side is formed in a curved shape having an angle distribution from the front area in the shaft direction toward the centrifugal direction in which the second angle is the maximum local point before the substantially middle portion.
摘要翻译：本发明的目的在于提供一种配备有具有叶片角度分布的叶轮的离心式压缩机，其能够实现相对宽的工作范围。在离心压缩机中，假设面向叶片的圆板的护罩侧的叶片角度为第一角度，并且设置在圆板上的轮毂侧的叶片角度为第二角度，护罩侧形成为具有从轴方向的前方区域朝向离心方向的角度分布的弯曲形状，其中第一角度在大致中间部分之前的局部最大点和大致中间点之后的局部最小点，并且形成毂侧其形状为从轴方向的前方区域朝向离心方向的角度分布的曲线形状，其中第二角度为大致中间部分之前的最大局部点。

2. 发明公开

EP2149709A3 Multistage centrifugal compressor 有权
标题翻译：多级旋转压缩机
公开(公告)号：EP2149709A3
公开(公告)日：2011-10-12
申请号：EP09009337.8
申请日：2009-07-17
申请人： Hitachi Plant Technologies, Ltd.
发明人： Nishida, Hideo , Kobayashi, Hiromi , Tanaka, Masanori , Kuwano, Tetsuya , Itou, Toshio , Shibata, Takanori , Yagi, Manabu
IPC分类号： F04D17/12 , F04D29/44
CPC分类号： F04D17/122 , F04D29/441 , F04D29/444
摘要： In a multistage centrifugal compressor, a plurality of impellers is attached to the same rotary shaft. Vaned Diffusers and vaneless diffusers are used, as diffusers, for respective compressor stages configuring the compressor. The vaned diffusers are continuously used from the first compressor stage to the middle compressor stage, and the vaneless diffusers are used for the last compressor stage and the previous stage. While high efficiency is maintained at the compressor stages having the vaned diffusers, an operating flow range is secured at the compressor stages having the vaneless diffusers.

3. 发明公开

EP2314876A2 Turbo machinery 有权
标题翻译： Radialturbomaschine
公开(公告)号：EP2314876A2
公开(公告)日：2011-04-27
申请号：EP10188580.4
申请日：2010-10-22
申请人： Hitachi Plant Technologies, Ltd.
发明人： Shibata, Takanori , Yagi, Manabu , Nishida, Hideo , Kobayashi, Hiromi , Tanaka, Masanori
IPC分类号： F04D17/12 , F04D29/44
CPC分类号： F04D29/444 , F04D17/12 , F04D29/681 , F05D2250/52
摘要： Turbo machinery 100 comprising an impeller 1 and a diffuser 2 positioned on a downstream side of the impeller 1 that a channel wall surface of the diffuser 2 is composed of a pair of a shroud side diffuser plate 14 and a hub side diffuser plate 9 which surface each other and a channel width is formed so as to be increased downstream, characterized in that guide vanes 12, 13 in a circular arc shape lower in height than the channel width are installed in a line of a plurality of vanes 12, 13 on both channel walls of the shroud side diffuser plate 14 and hub side diffuser plate 9 of the diffuser 2, and a total of vane heights of the two guide vanes 12, 13 at an outlet of the diffuser 2 is set so as to be within a range from 30 to 70% of the channel width at the outlet of the diffuser 2, and assuming an inclination angle of the channel wall surface of the shroud side diffuser plate 14 in a radial direction as θ s , a vane inlet angle of the guide vane 12 installed on the wall surface of the shroud side diffuser plate 14 in a peripheral direction at the inlet as β s, in , an inclination angle of the channel wall surface of the hub side diffuser plate 9 in the radial direction as θ h , and a vane inlet angle of the guide vane 13 installed on the wall surface of the hub side diffuser plate 9 in the peripheral direction at the inlet β h, in , respectively, said four angles conform to a following formula (1), β s in - β h in ⁢ = K ⁢ θ s - θ h 0
and K of the formula (1) is set so as to conform to a relation of K
摘要翻译：涡轮机械100包括叶轮1和位于叶轮1的下游侧的扩散器2，扩散器2的通道壁表面由一对护罩侧扩散板14和毂侧扩散板9组成，该表面彼此之间形成通道宽度以便在下游增加，其特征在于，高度大于通道宽度的圆弧形状的导向叶片12,13安装在两个叶片12,13上的一条线上扩散器2的护罩侧扩散板14和轮毂侧扩散板9的通道壁和扩散器2的出口处的两个导叶12,13的总叶片高度被设定在一个范围内在扩散器2的出口处的通道宽度的30至70％，并且假设护罩侧扩散板14的通道壁表面在径向方向上的倾斜角为¸s，导向叶片的叶片入口角 12安装在t的墙面上在入口处的周边方向上，护罩侧扩散板14的长度方向上，轮毂侧扩散板9的通道壁面在径向上的倾斜角为¸h，导向件的叶片入口角叶片13分别安装在轮毂侧扩散板9的壁面上，在入口2 h处于圆周方向，所述四个角分别与下列公式（1）相符：²s in² ¢= 将公式（1）的K ¢¸s-¸h0和K设定为符合K <0的关系。

4. 发明公开

EP2189663A3 Centrifugal compressor 有权
标题翻译：离心式压缩机
公开(公告)号：EP2189663A3
公开(公告)日：2012-07-04
申请号：EP09176656.8
申请日：2009-11-20
申请人： Hitachi Plant Technologies, Ltd.
发明人： Shibata, Takanori , Yagi, Manabu , Nishida, Hideo , Kobayashi, Hiromi , Tanaka, Masanori , Kuwano, Tetsuya
IPC分类号： F04D29/28 , F04D29/30
CPC分类号： F04D29/284 , F04D29/30 , Y10T29/49329
摘要： A centrifugal compressor provided with an impeller which is configured to have a plurality of blades arranged at a predetermined interval in a circumferential direction of a hub rotating together with a rotation shaft, in which a blade angle on a shroud side of the blade distributes to have a minimum value at a position between a leading edge of the blade and a midpoint of a camber line on the shroud side, and a maximum value at a position between the midpoint of the camber line on the shroud side and a trailing edge of the blade, and a blade angle of the blade on a hub side distributes so as to have a maximum value at a position between a leading edge and a midpoint of a camber line on the hub side.

5. 发明公开

EP2149709A2 Multistage centrifugal compressor 有权
标题翻译： Mehrstufiger Rotationsverdichter
公开(公告)号：EP2149709A2
公开(公告)日：2010-02-03
申请号：EP09009337.8
申请日：2009-07-17
申请人： Hitachi Plant Technologies, Ltd.
发明人： Nishida, Hideo , Kobayashi, Hiromi , Tanaka, Masanori , Kuwano, Tetsuya , Itou, Toshio , Shibata, Takanori , Yagi, Manabu
IPC分类号： F04D17/12 , F04D29/44
CPC分类号： F04D17/122 , F04D29/441 , F04D29/444
摘要： In a multistage centrifugal compressor, a plurality of impellers is attached to the same rotary shaft. Vaned Diffusers and vaneless diffusers are used, as diffusers, for respective compressor stages configuring the compressor. The vaned diffusers are continuously used from the first compressor stage to the middle compressor stage, and the vaneless diffusers are used for the last compressor stage and the previous stage. While high efficiency is maintained at the compressor stages having the vaned diffusers, an operating flow range is secured at the compressor stages having the vaneless diffusers.
摘要翻译：在多级离心式压缩机中，多个叶轮连接在同一旋转轴上。对于构成压缩机的各个压缩机级，使用经过的扩散器和无叶扩散器作为扩散器。从第一压缩机阶段到中间压缩机阶段连续使用带叶片的扩散器，无级扩散器用于最后一个压缩机阶段和前一阶段。在具有带叶片的扩散器的压缩机级保持高效率的情况下，在具有无叶漫射器的压缩机级确保工作流量范围。

6. 发明公开

EP2068099A2 Refrigeration cycle system, natural gas liquefaction plant, heat pump system, and method for retrofitting refrigeration cycle system 审中-公开
标题翻译：制冷循环系统，天然气液化设备，热泵系统和方法用于改装制冷循环系统
公开(公告)号：EP2068099A2
公开(公告)日：2009-06-10
申请号：EP08020972.9
申请日：2008-12-03
申请人： Hitachi Ltd. , Hitachi Plant Technologies, Ltd.
发明人： Shibata, Takanori , Bannai, Masaaki , Fukushima, Yasuo , Horitsugi, Mutsumi
IPC分类号： F25B1/10 , F25B5/00 , F25B5/02
CPC分类号： F25B1/10 , F25B5/00 , F25B5/02 , F25B31/006 , F25B2341/0662 , F25B2400/072 , F25B2400/13 , F25B2400/16 , F25B2400/23 , F25J1/0022 , F25J1/0052 , F25J1/0055 , F25J1/0087 , F25J1/0216 , F25J1/0268 , F25J1/0279 , F25J1/0296 , F25J2270/12 , F25J2270/60
摘要： A refrigeration cycle system is provided, comprising a plurality of compressors (3,4,5) for compressing a refrigerant that is used to cool a medium (10), one of the compressors being a low pressure compressor (3), another one of the compressors being a high pressure compressor (5); a condenser (6) for cooling and condensing the refrigerant compressed by the plurality of compressors (3,4,5); a reservoir (7) for receiving the refrigerant condensed by the condenser (6); an expansion mechanism (9) for expanding and cooling the refrigerant supplied from the reservoir (7); an evaporator (9) for evaporating the refrigerant cooled by the expansion mechanism (8) by means of the medium (10) to generate a refrigerant to be supplied to the plurality of compressors (3,4,5); and an intercooler (15,15A,61) that is provided between the low pressure compressor (3) and the high pressure compressor (5) and adapted to cool the refrigerant supplied from the low pressure compressor (3) by means of the refrigerant supplied from the expansion mechanism (8) so as to generate a refrigerant to be supplied to the high pressure compressor (5).
摘要翻译：的制冷循环系统被提供，其包括压缩机用于压缩制冷剂有多个（3,4,5）也被用于冷却介质（10），所述压缩机中的一个是一个低压压缩机（3），中的另一个压缩机是高压压缩机（5）; 用于冷却和冷凝由压缩机的多元性（3,4,5）压缩的制冷剂的冷凝器（6）; 用于接收由所述冷凝器（6）中冷凝的制冷剂的储存器（7）; 上膨胀机构（9），用于膨胀和冷却从储存器（7）供给的制冷剂; 到蒸发器（9），用于通过所述介质（10）的方式蒸发由膨胀机构（8）冷却的制冷剂，以产生制冷剂被供应到压缩机的多元性（3,4,5）; 和中间冷却器（15,15a，61）没被低压压缩机（3）和高压压缩机（5）和由angepasst供给的制冷剂来冷却从所述低压压缩机（3）供给的制冷剂之间提供从膨胀机构（8），以便产生将被供应到高压压缩机（5）的制冷剂。

7. 发明公开

EP2020509A3 Centrifugal compressor, impeller and operating method of the same 有权转让
标题翻译：离心式压缩机，离心式和其操作方法
公开(公告)号：EP2020509A3
公开(公告)日：2012-08-01
申请号：EP08013769.8
申请日：2008-07-31
申请人： Hitachi Plant Technologies, Ltd.
发明人： Yagi, Manabu , Kishibe, Tadaharu , Shibata, Takanori , Nishida, Hideo , Kobayashi, Hiromi , Kuwano, Tetsuya
IPC分类号： F04D29/28 , F04D29/30
CPC分类号： F04D29/284 , F04D29/30
摘要： It is an object of the prevent invention to provide a centrifugal compressor equipped with an impeller having a blade angle distribution that makes it possible to achieve a relatively wide operating range. In a centrifugal compressor, assuming that a blade angle of a shroud side facing a circular plate of a blade is a first angle and a blade angle of a hub side disposed at the circular plate is a second angle, the shroud side is formed in a curved shape having an angle distribution from a front area in a shaft direction toward a centrifugal direction in which the first angle is the local maximum point before a substantially middle portion and the local minimum point after the substantially middle point, and the hub side is formed in a curved shape having an angle distribution from the front area in the shaft direction toward the centrifugal direction in which the second angle is the maximum local point before the substantially middle portion.

8. 发明公开

EP2068099A3 Refrigeration cycle system, natural gas liquefaction plant, heat pump system, and method for retrofitting refrigeration cycle system 审中-公开
标题翻译：制冷循环系统，天然气液化设备，热泵系统和方法用于改装制冷循环系统
公开(公告)号：EP2068099A3
公开(公告)日：2012-02-15
申请号：EP08020972.9
申请日：2008-12-03
申请人： Hitachi Ltd. , Hitachi Plant Technologies, Ltd.
发明人： Shibata, Takanori , Bannai, Masaaki , Fukushima, Yasuo , Horitsugi, Mutsumi
IPC分类号： F25B1/10 , F25B5/00 , F25B31/00 , F25B5/02
CPC分类号： F25B1/10 , F25B5/00 , F25B5/02 , F25B31/006 , F25B2341/0662 , F25B2400/072 , F25B2400/13 , F25B2400/16 , F25B2400/23 , F25J1/0022 , F25J1/0052 , F25J1/0055 , F25J1/0087 , F25J1/0216 , F25J1/0268 , F25J1/0279 , F25J1/0296 , F25J2270/12 , F25J2270/60
摘要： A refrigeration cycle system is provided, comprising a plurality of compressors (3,4,5) for compressing a refrigerant that is used to cool a medium (10), one of the compressors being a low pressure compressor (3), another one of the compressors being a high pressure compressor (5); a condenser (6) for cooling and condensing the refrigerant compressed by the plurality of compressors (3,4,5); a reservoir (7) for receiving the refrigerant condensed by the condenser (6); an expansion mechanism (9) for expanding and cooling the refrigerant supplied from the reservoir (7); an evaporator (9) for evaporating the refrigerant cooled by the expansion mechanism (8) by means of the medium (10) to generate a refrigerant to be supplied to the plurality of compressors (3,4,5); and an intercooler (15,15A,61) that is provided between the low pressure compressor (3) and the high pressure compressor (5) and adapted to cool the refrigerant supplied from the low pressure compressor (3) by means of the refrigerant supplied from the expansion mechanism (8) so as to generate a refrigerant to be supplied to the high pressure compressor (5).

9. 发明公开

EP2189663A2 Centrifugal compressor 有权
标题翻译： Kreiselverdichter undzugehörigesHerstellungsverfahren
公开(公告)号：EP2189663A2
公开(公告)日：2010-05-26
申请号：EP09176656.8
申请日：2009-11-20
申请人： Hitachi Plant Technologies, Ltd.
发明人： Shibata, Takanori , Yagi, Manabu , Nishida, Hideo , Kobayashi, Hiromi , Tanaka, Masanori , Kuwano, Tetsuya
IPC分类号： F04D29/28 , F04D29/30
CPC分类号： F04D29/284 , F04D29/30 , Y10T29/49329
摘要： A centrifugal compressor provided with an impeller which is configured to have a plurality of blades arranged at a predetermined interval in a circumferential direction of a hub rotating together with a rotation shaft, in which a blade angle on a shroud side of the blade distributes to have a minimum value at a position between a leading edge of the blade and a midpoint of a camber line on the shroud side, and a maximum value at a position between the midpoint of the camber line on the shroud side and a trailing edge of the blade, and a blade angle of the blade on a hub side distributes so as to have a maximum value at a position between a leading edge and a midpoint of a camber line on the hub side.
摘要翻译：一种设置有叶轮的离心式压缩机，其构造成具有在与旋转轴一起旋转的轮毂的圆周方向上以预定间隔布置的多个叶片，叶片的护罩侧的叶片角度分布在该旋转轴中，在叶片的前缘和护罩侧的外倾线的中点之间的位置处的最小值以及护罩侧的外倾线的中点与叶片的后缘之间的位置处的最大值并且轮毂侧上的叶片的叶片角度分布成在轮毂侧的倾斜线的前缘和中点之间的位置处具有最大值。

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