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1. 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。

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. 发明授权

EP1990544B1 Multistage centrifugal compressor 有权
标题翻译：多级离心式压缩机
公开(公告)号：EP1990544B1
公开(公告)日：2011-06-15
申请号：EP08008114.4
申请日：2008-04-28
申请人： Hitachi Plant Technologies, Ltd.
发明人： Nishida, Hideo , Kobayashi, Hiromi , Tanaka, Masanori , Kishibe, Tadaharu , Yagi, Manabu , Kuwano, Tetsuya
IPC分类号： F04D17/12 , F04D29/42
CPC分类号： F04D29/444 , F04D17/122 , F04D29/4213

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

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。

7. 发明公开

EP2138724A3 Centrifugal compressor having vaneless diffuser and vaneless diffuser thereof 有权
标题翻译：离心式压缩机与铲无线扩散器及相应的无叶片扩散器
公开(公告)号：EP2138724A3
公开(公告)日：2011-03-02
申请号：EP09007940.1
申请日：2009-06-17
申请人： Hitachi Plant Technologies, Ltd.
发明人： Tanaka, Masanori , Nishida, Hideo , Kobayashi, Hiromi , Kuwano, Tetsuya , Itou, Toshio
IPC分类号： F04D29/44
CPC分类号： F04D29/441
摘要： In a high pressure centrifugal compressor (100), the occurrence of rotating stall noticeable in a comparatively-low specific speed wheel stage is prevented, thereby high efficient fluid performance is obtained and reliability is improved. The centrifugal compressor (100) has a first vaneless diffuser (21) with a constant flow channel height on the downstream side of an impeller (1), and a second vaneless diffuser (22) in which the flow channel height decreases in a flow direction from an inlet to an outlet on the downstream side of the first vaneless diffuser (21). These diffusers (21,22) are combined with an impeller (1) using thick blades.

8. 发明公开

EP2138724A2 Centrifugal compressor having vaneless diffuser and vanelees diffuser thereof 有权
标题翻译： Zentrifugalkompressor mit schaufellosem Diffusor und entsprechender schaufelloser Diffusor
公开(公告)号：EP2138724A2
公开(公告)日：2009-12-30
申请号：EP09007940.1
申请日：2009-06-17
申请人： Hitachi Plant Technologies, Ltd.
发明人： Tanaka, Masanori , Nishida, Hideo , Kobayashi, Hiromi , Kuwano, Tetsuya , Itou, Toshio
IPC分类号： F04D17/12 , F04D27/00 , F04D29/44
CPC分类号： F04D29/441
摘要： In a high pressure centrifugal compressor (100), the occurrence of rotating stall noticeable in a comparatively-low specific speed wheel stage is prevented, thereby high efficient fluid performance is obtained and reliability is improved. The centrifugal compressor (100) has a first vaneless diffuser (21) with a constant flow channel height on the downstream side of an impeller (1), and a second vaneless diffuser (22) in which the flow channel height decreases in a flow direction from an inlet to an outlet on the downstream side of the first vaneless diffuser (21). These diffusers (21,22) are combined with an impeller (1) using thick blades.
摘要翻译：在高压离心式压缩机（100）中，防止了在比较低的特定速度车轮台处发生的转动失速，从而获得了高效率的流体性能并提高了可靠性。离心式压缩机100具有在叶轮（1）的下游侧具有恒定流动通道高度的第一无叶漫射器（21）和第二无叶漫射器（22），其中流动通道高度沿流动方向降低从第一无叶漫射器（21）的下游侧的入口到出口。这些扩散器（21,22）使用厚叶片与叶轮（1）组合。

9. 发明公开

EP1990544A3 Multistage centrifugal compressor 有权
标题翻译：多级离心式压缩机
公开(公告)号：EP1990544A3
公开(公告)日：2009-06-17
申请号：EP08008114.4
申请日：2008-04-28
申请人： Hitachi Plant Technologies, Ltd.
发明人： Nishida, Hideo , Kobayashi, Hiromi , Tanaka, Masanori , Kishibe, Tadaharu , Yagi, Manabu , Kuwano, Tetsuya
IPC分类号： F04D17/12 , F04D29/42 , F04D29/54
CPC分类号： F04D29/444 , F04D17/122 , F04D29/4213
摘要： A multistage centrifugal compressor (50) includes a rotary shaft (1), and multistage impellers (5b) attached to the rotary shaft (1). Each of the impellers (5b) includes a hub (4b), a shroud (3b) and blades (2b) therebetween in a radial cascade arrangement. An annular suction passage (6b) for guiding the fluid flow from the inward radial direction to a blade inlet (14b) is disposed upstream of the centrifugal impeller (5b). A diffuser (9b) is disposed downstream of the centrifugal impeller (5b). A bend portion (10b) is disposed downstream of the diffuser (9b), and a return channel (13b) with a guide blade portion (11b) is disposed downstream of the bend portion (10b). The annular suction passage (6b) at a hub side includes an axial parallel portion (15b).

10. 发明公开

EP1990544A2 Multistage centrifugal compressor 有权
标题翻译： Mehrstufen-Zentrifugalkompressor
公开(公告)号：EP1990544A2
公开(公告)日：2008-11-12
申请号：EP08008114.4
申请日：2008-04-28
申请人： Hitachi Plant Technologies, Ltd.
发明人： Nishida, Hideo , Kobayashi, Hiromi , Tanaka, Masanori , Kishibe, Tadaharu , Yagi, Manabu , Kuwano, Tetsuya
IPC分类号： F04D17/12
CPC分类号： F04D29/444 , F04D17/122 , F04D29/4213
摘要： A multistage centrifugal compressor (50) includes a rotary shaft (1), and multistage impellers (5b) attached to the rotary shaft (1). Each of the impellers (5b) includes a hub (4b), a shroud (3b) and blades (2b) therebetween in a radial cascade arrangement. An annular suction passage (6b) for guiding the fluid flow from the inward radial direction to a blade inlet (14b) is disposed upstream of the centrifugal impeller (5b). A diffuser (9b) is disposed downstream of the centrifugal impeller (5b). A bend portion (10b) is disposed downstream of the diffuser (9b), and a return channel (13b) with a guide blade portion (11b) is disposed downstream of the bend portion (10b). The annular suction passage (6b) at a hub side includes an axial parallel portion (15b).
摘要翻译：多级离心压缩机（50）包括旋转轴（1）和连接到旋转轴（1）的多级叶轮（5b）。每个叶轮（5b）在径向级联布置中包括轮毂（4b），护罩（3b）和叶片（2b）。用于将流体从径向向内引导到叶片入口（14b）的环形吸入通道（6b）设置在离心式叶轮（5b）的上游。扩散器（9b）设置在离心式叶轮（5b）的下游。弯曲部分（10b）设置在扩散器（9b）的下游，并且具有引导叶片部分（11b）的返回通道（13b）设置在弯曲部分（10b）的下游。轮毂侧的环状吸入通路（6b）包括轴向平行部（15b）。

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