We can obtain the impeller's interior actual flow situation and the impeller internal stress distribution due to axial flow fluid-solid coupling numerical simulation.
Sprinkler pump shell cracks, or impeller, leaf damage, or seal damage, will affect the degree of vacuum, water pumping, water pressure is too small or the phenomenon.
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3. 热点项目包括心肌组织的组织工程模型、三叶瓣、细胞型的心脏泵及血管移植物。
Active programs include tissue engineering models for cardiac muscle tri - leaflet valves cell-based cardiac pumps and vascular grafts.
The volute of guide-vane structure can transform the kinetic energy to pressure energy as soon as possible, and improve the capacity of separating gas and liquid for the more balance flow in it.
Multileaf foil bearing, instead of ball bearing of turbo-pump in rocket engine, has many important advantages including long life, high speed and low energy loss.
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6. 对大泵改造保留出口导叶的叶轮改型方案作了深入的探讨。
A reform scheme with exit guide vane remained for large axial flow pumps is discussed deeply.
Impeller and diffuser are important parts in the Axial-flow pump and the later is the important part to take back energy.
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8. 转子泵的转子叶数可能是两叶或三叶。
Number of lobe of rotor in rotating pump may be two or three.
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9. 采用径向导叶的液氢泵的试验结果表明，导叶损失大，导致液氢泵效率低。
The results, which obtained by using radial diffuser, show that due to the high loss through the diffuser, the efficiency of the liquid hydrogen pump is lower.
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10. 对酮苯装置泵-19叶轮腐蚀进行了失效分析。
The corrosion failure of the blades of Pump-19 in the acetone-benzol plant was analyzed.
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11. 水力部件由以下组成：出入口管，壳体，法兰，叶轮，导叶，泵轴，泵轴承，热屏和热屏热交换器。
The hydraulic section consists of the inlet and outlet nozzles, casing, flange, impeller, diffuser, pump shaft, pump bearing, thermal barrier and thermal barrier heat exchanger.
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12. 本文成立了多级离心泵导叶内部流场的计较模子，体例了活动计较措施。
This paper sets up a calculation model to solve the internal flow of multistage centrifugal pumps and a flow calculation program is worked out.
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13. 本文介绍了离心泵节能的主要技术，并提出了前置导叶预旋调节的节能技术。
This paper introduces the main energy saving technologies of centrifugal pump. And the author proposes a new energy saving technology which is called prerotation regulated by the inlet guide vane.
The operating principle of three--vane external circulating current piston pump was studied and the conditions of liquid seal and non--interferrence of the pump were got.
Aiming at the fuzzy and incomplete nature of fault characteristics of axial piston pump, a method of Bayesian networks and multi-characteristic information fusion was proposed.
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16. YB_1—100叶片泵存在噪声高，压力脉动大，性能稳定性差的问题。
The present problems of YB_1-100 vane pump are high noise, large pressure pulse and poor stability.
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17. 靠近泵出口的两个叶道内，有气相的积聚，含气率较高。
The two channels near the outlet of the pump have obvious gas accumulation with higher gas voids.
