1. A high-capacity axial-flow pump mated to the powerful 635 cm3 2-stroke Twin delivered tremendous thrust across the rev range.

2. Impeller and diffuser are important parts in the Axial-flow pump and the later is the important part to take back energy.

3. As for 1-channel passage , axial-flow pump outlet circulation is too big usually, the passage hydraulic losses are big too, but small circulation can slightly reduce hydraulic losses.

4. The performance of an axial-flow pump stage and its interior flow field are studied numerically.

5. The utility model guarantees installing accuracy of axial-flow pump, substantially reducing vibration and noise of pump, thereby ensuring long-term and reliable operation of the overall pump system.

6. Submersible axial-flow Pump, as a submersible pump, which is combined with a motor, is a special machine that is submerged to transport liquid.

7. A durable axial-flow pump with simple structure, low cost and durable is designed out according to the corrosion resisting requirements of chemical plating production line.

8. It is showed that, the adjustable axial-flow pump with double speed is very convenient in use and obvious in energy saving wh...

9. The results provide references to the optimum design of an axial-flow pump assembly.

10. It is also discovered that the axial velocity distribution and velocity-weighted average swirl angle at the outlet section of axial-flow pump vary with the changing of wall roughness.

11. Influence of each factor on blade inlet flow of a large vertical axial-flow pump is analyzed, formation mechanism of flow field in the cross section is studied.

12. The corrosion situation of some metal materials used for axial-flow pump and impeller of slurry pump in wet phosphoric acid production was studied.

13. The internal three - dimensional turbulent flow of adjustable axial-flow pump arrangement was simulated, and the force acting on the blade surface was calculated under different operating conditions.

14. Results mean much to optimum design of outlet parts of large axial-flow pump assemblies and increasement of pump assembly efficiency.

15. Under the influence of circulation and curved pipe of the pump outlet, the flow in outlet pipe of an axial-flow pump is non-symmetrical, complex spiral flow.Sentence dictionary

16. This thesis describes the field erection process of the loop reactor and the assembly welding method of a pair of the axial-flow pump flanges.

17. In the technology reform of Dongjiang Pumping Station, a large scale axial-flow pump with double speed is used to fitting in with the nature of the pump head varying greatly.

18. There exists a saddle type zone in the hydraulic moment curve of axial-flow pump blades which corresponds to the saddle zone of discharge-head characteristic curve of the pump.