发明名称 |
MULTI-STAGE CENTRIFUGAL PUMP |
摘要 |
FIELD: handling various fluids; production of oil. SUBSTANCE: pump has shaft on which impellers are fitted. Impeller of each stage is located between two adjacent guide vanes at radial and axial clearances. Impeller is made in form of hub on which open blades are mounted at acute angle of inclination at outlet relative to plane perpendicular to axis of rotation. Lower end of hub is mounted on inner ring of previous guide vane. Outer radius of cover disk and plate separating two adjacent passages of guide vane is reducing from the beginning of concave wall of passage to minimum distance between concave and convex walls of next passage. Circular chamber is formed between passages of guide vanes and its inner ring. Outlet angle is lesser than 90 deg. EFFECT: enhanced operational reliability; increased pressure head and enhanced efficiency. 2 dwgc
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申请公布号 |
RU2117186(C1) |
申请公布日期 |
1998.08.10 |
申请号 |
RU19960122928 |
申请日期 |
1996.12.03 |
申请人 |
TRULEV ALEKSEJ VLADIMIROVICH |
发明人 |
TRULEV A.V.;TRULEV JU.V. |
分类号 |
F04D1/06;F04D13/10;(IPC1-7):F04D1/06 |
主分类号 |
F04D1/06 |
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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