发明名称 |
Multistage centrifugal compressor |
摘要 |
A multistage centrifugal compressor includes a rotary shaft, and multistage impellers attached to the rotary shaft. Each of the impellers includes a hub, a shroud and blades therebetween in a radial cascade arrangement. An annular suction passage for guiding the fluid flow from the inward radial direction to a blade inlet is disposed upstream of the centrifugal impeller. A diffuser is disposed downstream of the centrifugal impeller. A bend portion is disposed downstream of the diffuser, and a return channel with a guide blade portion is disposed downstream of the bend portion. The annular suction passage at a hub side includes an axial parallel portion. |
申请公布号 |
US8287236(B2) |
申请公布日期 |
2012.10.16 |
申请号 |
US20080117288 |
申请日期 |
2008.05.08 |
申请人 |
NISHIDA HIDEO;KOBAYASHI HIROMI;TANAKA MASANORI;KISHIBE TADAHARU;YAGI MANABU;KUWANO TETSUYA;HITACHI PLANT TECHNOLOGIES, LTD. |
发明人 |
NISHIDA HIDEO;KOBAYASHI HIROMI;TANAKA MASANORI;KISHIBE TADAHARU;YAGI MANABU;KUWANO TETSUYA |
分类号 |
F04D1/10 |
主分类号 |
F04D1/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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