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    Centrifugal compressor having an asymmetric self-recirculating casing treatment
    1.
    发明授权
    Centrifugal compressor having an asymmetric self-recirculating casing treatment 有权
    具有不对称自循环套管处理的离心式压缩机

    公开(公告)号：US09234526B2

    公开(公告)日：2016-01-12

    申请号：US13578137

    申请日：2011-02-03

    申请人： Xinqian Zheng ,  Yun Lin ,  Yangjun Zhang ,  Mingyang Yang ,  Takahiro Bamba ,  Hideaki Tamaki

    发明人： Xinqian Zheng ,  Yun Lin ,  Yangjun Zhang ,  Mingyang Yang ,  Takahiro Bamba ,  Hideaki Tamaki

    IPC分类号： F04D29/42 ,  F04D29/68

    CPC分类号： F04D29/4213 ,  F04D17/10 ,  F04D29/685

    摘要： A centrifugal compressor includes an asymmetric self-recirculating casing treatment that includes, on an inner face of a casing 10, a suction ring groove 1, a ring guide channel 2 and a back-flow ring groove 3 to form a self-recirculating channel. An axial-direction position Sr from an upstream end face of the suction ring groove to an impeller full blade leading edge 4 or a width br of the suction ring groove 1 is represented as A(α·D−β·D)2+A0 and is distributed in a parabolic shape in a circumferential direction. An initial phase angle θ0 is in a range of 0≦θ0≦2π. A circumferential angle α of the casing has a definition range of θ0≦α≦θ0+2π. In the expression, A denotes a parameter of the parabola in the axial-direction position Sr or the width br, and A0 denotes an extreme of the axial-direction position Sr or the width br when corresponding circumferential angle β and the α are equal at an extreme point of distribution of the parabola.

    摘要翻译： 离心压缩机包括不对称的自再循环壳体处理，其在壳体10的内表面上包括吸入环槽1，环形引导通道2和回流环槽3，以形成自再循环通道。 从吸入环槽的上游端面到吸入环槽1的叶轮全叶片前缘4或宽度br的轴向位置Sr表示为A（α·D-＆bgr·D）2+ A0并且沿圆周方向以抛物线形状分布。 初始相位角和角度0在0＆nlE;＆Thetas; 0＆nlE; 2＆pgr的范围内。 外壳的圆周角度α具有＆...的定义范围; 0＆nlE;α＆nlE;＆thetas; 0 + 2＆pgr。 在该表达式中，A表示轴向位置Sr或宽度br的抛物线的参数，A0表示当对应的圆周角度＆bgr时的轴向位置Sr或宽度br的极端值。 并且α在抛物线的极端分布点处相等。

    CENTRIFUGAL COMPRESSOR HAVING AN ASYMMETRIC SELF-RECIRCULATING CASING TREATMENT
    2.
    发明申请
    CENTRIFUGAL COMPRESSOR HAVING AN ASYMMETRIC SELF-RECIRCULATING CASING TREATMENT 审中-公开
    具有不对称自回收箱处理的离心式压缩机

    公开(公告)号：US20120321440A1

    公开(公告)日：2012-12-20

    申请号：US13578163

    申请日：2011-02-03

    申请人： Xinqian Zheng ,  Yun Lin ,  Yangjun Zhang ,  Mingyang Yang ,  Takahiro Bamba ,  Hideaki Tamaki

    发明人： Xinqian Zheng ,  Yun Lin ,  Yangjun Zhang ,  Mingyang Yang ,  Takahiro Bamba ,  Hideaki Tamaki

    IPC分类号： F01D1/12

    CPC分类号： F04D29/4213 ,  F04D17/10 ,  F04D29/685

    摘要： A centrifugal compressor includes an asymmetric self-recirculating casing treatment that includes, on an inner face of a casing 10, a suction ring groove 1, a ring guide channel 2 and a back-flow ring groove 3 to form a self-recirculating channel. An axial distance Sr from an upstream end face of the suction ring groove 1 to an impeller full blade leading edge 4 or a width br of the suction ring groove 1 is represented as A·sin(α+θ0)+A0 and is distributed in a sinusoidal shape in a circumferential direction, an initial phase angle θ0 is in a range of 0°≦θ0≦360°, and a circumferential angle α of the casing 10 has a definition range of θ0≦α≦θ0+360°. In the expression, A denotes amplitude of distribution of the axial distance Sr or the width br, and A0 denotes an average of the axial distance Sr or the width br.

    摘要翻译： 离心压缩机包括不对称的自再循环壳体处理，其在壳体10的内表面上包括吸入环槽1，环形引导通道2和回流环槽3，以形成自再循环通道。 从吸入环槽1的上游端面到叶轮全叶片前缘4或吸入环槽1的宽度br的轴向距离Sr表示为A·sin（α+＆eta; 0）+ A0，为 分布在圆周方向上的正弦形状，初始相位角和角度0在0°＆lt; lE;＆amp; t; 0＆nlE; 360°的范围内，并且壳体10的圆周角度α具有＆...的定义范围; 0＆ ;α＆nlE;＆thetas; 0 + 360°。 在表达式中，A表示轴向距离Sr或宽度br的分布的振幅，A0表示轴向距离Sr或宽度br的平均值。

    CENTRIFUGAL COMPRESSOR HAVING AN ASYMMETRIC SELF-RECIRCULATING CASING TREATMENT
    6.
    发明申请
    CENTRIFUGAL COMPRESSOR HAVING AN ASYMMETRIC SELF-RECIRCULATING CASING TREATMENT 有权
    具有不对称自回收箱处理的离心式压缩机

    公开(公告)号：US20120315127A1

    公开(公告)日：2012-12-13

    申请号：US13578188

    申请日：2011-02-03

    申请人： Xinqian Zheng ,  Yun Lin ,  Yangjun Zhang ,  Mingyang Yang ,  Takahiro Bamba ,  Hideaki Tamaki

    发明人： Xinqian Zheng ,  Yun Lin ,  Yangjun Zhang ,  Mingyang Yang ,  Takahiro Bamba ,  Hideaki Tamaki

    IPC分类号： F01D1/12

    CPC分类号： F04D29/4213 ,  F04D29/685

    摘要： A centrifugal compressor has a casing 7. In the casing 7 is formed a back-flow channel 9 to return fluid from a downstream position of an impeller full blade leading edge 6a to an upstream position of the impeller full blade leading edge 6a. The back-flow channel 9 includes a suction ring groove 9a and a back-flow ring groove 9b. The suction ring groove opens at the downstream position on the inner face 7a of the casing 7, and extends in the circumferential direction. The back-flow ring groove opens at the upstream position on the inner face 7a, and extends in the circumferential direction. Distribution in the circumferential direction of the axial-direction position of the suction ring groove 9a or a width of the suction ring groove 9a is asymmetric with reference to the rotation axis.

    摘要翻译： 离心压缩机具有壳体7.在壳体7中形成有用于将流体从叶轮全叶片前缘6a的下游位置返回到叶轮全叶片前缘6a的上游位置的后部流路9。 背流通道9包括吸入环槽9a和后流环槽9b。 吸入环槽在壳体7的内表面7a的下游位置开口，并且在圆周方向上延伸。 背流环槽在内表面7a上的上游位置开口，并沿圆周方向延伸。 吸入环槽9a的轴向位置的圆周方向的分布或者吸入环槽9a的宽度相对于旋转轴线是不对称的。

    CENTRIFUGAL COMPRESSOR HAVING AN ASYMMETRIC SELF-RECIRCULATING CASING TREATMENT
    7.
    发明申请
    CENTRIFUGAL COMPRESSOR HAVING AN ASYMMETRIC SELF-RECIRCULATING CASING TREATMENT 有权
    具有不对称自回收箱处理的离心式压缩机

    公开(公告)号：US20120308372A1

    公开(公告)日：2012-12-06

    申请号：US13578137

    申请日：2011-02-03

    申请人： Xinqian Zheng ,  Yun Lin ,  Yangjun Zhang ,  Mingyang Yang ,  Takahiro Bamba ,  Hideaki Tamaki

    发明人： Xinqian Zheng ,  Yun Lin ,  Yangjun Zhang ,  Mingyang Yang ,  Takahiro Bamba ,  Hideaki Tamaki

    IPC分类号： F04D29/42

    CPC分类号： F04D29/4213 ,  F04D17/10 ,  F04D29/685

    摘要： A centrifugal compressor includes an asymmetric self-recirculating casing treatment that includes, on an inner face of a casing 10, a suction ring groove 1, a ring guide channel 2 and a back-flow ring groove 3 to form a self-recirculating channel. An axial-direction position Sr from an upstream end face of the suction ring groove to an impeller full blade leading edge 4 or a width br of the suction ring groove 1 is represented as A(α·D−β·D)2+A0 and is distributed in a parabolic shape in a circumferential direction. An initial phase angle θ0 is in a range of 0≦θ0≦2π. A circumferential angle α of the casing has a definition range of θ0≦α≦θ0+2λ. In the expression, A denotes a parameter of the parabola in the axial-direction position Sr or the width br, and A0 denotes an extreme of the axial-direction position Sr or the width br when corresponding circumferential angle β and the α are equal at an extreme point of distribution of the parabola.

    摘要翻译： 离心压缩机包括不对称的自再循环壳体处理，其在壳体10的内表面上包括吸入环槽1，环形引导通道2和回流环槽3，以形成自再循环通道。 从吸入环槽的上游端面到吸入环槽1的叶轮全叶片前缘4或宽度br的轴向位置Sr表示为A（α·D-＆bgr·D）2+ A0并且沿圆周方向以抛物线形状分布。 初始相位角和角度0在0＆nlE;＆Thetas; 0＆nlE; 2＆pgr的范围内。 壳体的圆周角度α具有＆...的定义范围; 0＆nlE;α＆nlE;＆thetas; 0 +2λ。 在该表达式中，A表示轴向位置Sr或宽度br的抛物线的参数，A0表示当对应的圆周角度＆bgr时的轴向位置Sr或宽度br的极端; 并且α在抛物线的极端分布点处相等。

    CENTRIFUGAL COMPRESSOR AND MANUFACTURING METHOD THEREFOR
    9.
    发明申请
    CENTRIFUGAL COMPRESSOR AND MANUFACTURING METHOD THEREFOR 有权
    离心式压缩机及其制造方法

    公开(公告)号：US20140255175A1

    公开(公告)日：2014-09-11

    申请号：US14006914

    申请日：2012-03-21

    申请人： Xinqian Zheng ,  Yun Lin ,  Yangjun Zhang ,  Chuanjie Lan ,  Weilin Zhuge ,  Tomoki Kawakubo ,  Hideaki Tamaki

    发明人： Xinqian Zheng ,  Yun Lin ,  Yangjun Zhang ,  Chuanjie Lan ,  Weilin Zhuge ,  Tomoki Kawakubo ,  Hideaki Tamaki

    IPC分类号： F04D17/10

    CPC分类号： F04D17/10 ,  F04D29/441 ,  F04D29/444 ,  F05D2250/52 ,  Y10T29/49243

    摘要： A centrifugal compressor includes: a volute casing including a first casing and a second casing that are mutually coupled, the first casing including a volute chamber therein and the second casing including an impeller installation space therein; an impeller provided in the impeller installation space so as to be rotatable around a rotation axis; and a vaneless diffuser that has an inlet that communicates with an inside of the second casing and has an outlet that communicates with an inside of the first casing. The vaneless diffuser has a width having a non-axisymmetric distribution in the circumferential direction.

    摘要翻译： 离心压缩机包括：蜗壳，其包括彼此联接的第一壳体和第二壳体，所述第一壳体包括蜗壳室，并且所述第二壳体在其中包括叶轮安装空间; 设置在所述叶轮安装空间中以能够围绕旋转轴线旋转的叶轮; 和一个无叶漫射器，其具有与第二壳体的内部连通并具有与第一壳体的内部连通的出口的入口。 无叶漫射器具有在圆周方向上具有非轴对称分布的宽度。