ZLH Axial Flow Pump
The ZLH vertical chemical axial flow pump is a standardized and serialized new product that achieves further innovation based on more than 20 years ofresearch and development,manufacturing,and a large numberof engineering application examples.
Introduction of ZLH Vertical Axial Flow Pump
The ZLH series vertical chemical axial flow pump is widely used in the caustic soda industry and is a key equipment for the slurry circulation of the crystallizer in the caustic soda process.It has multiple patented technologies and has been awarded the second prize for scientific and technological progress by the China Soda Industry Association.
Standard:China GB/T13008
Technical Data:
- Flow rate：Q=300～13500 （m³/h）
- Total head：H= 1～6 (m)
- Speed：n=180-1450rpm
- Fluid temperature：T= 0～50℃
- Fluid s.g.：γ≤1.4
Applications:
- Integrated alkali industry and crystallizer slurry circulation engineering.
- Chemical industry.
- Environment protection engineering.
Structure Features:
- After more than 20 years of engineering application, the ZLH Series vertical axial flow pump has a compact structure; vertical installation with small footprint; The impeller is immersed in liquid and can be started directly.
- It can be applied to increase system pressure and liquid level, or implement forced circulation and other functions.
- Its specification parameters cover a wide range and can meet the current production capacity needs of domestic and foreign users.
- The impeller adopts a variable circulation and adjustable structure.
- With the help of fluid analysis software Ansys, the hydraulic model has been optimized, expanding the range of efficient zones and better adapting to fluctuations in process system loads, which is beneficial for energy conservation and production increase of the system.
- Smooth operation, safe and reliable;
- More than 95% of domestic caustic soda enterprises (salt precipitation, cold precipitation, carbonization tower flushing processes) use this type
- The shaft adopts advanced integral shaft or butt welded shaft.
- The butt welded shaft process is mature and reliable, and can simultaneously meet the requirements of transmission strength and corrosion resistance; on the premise of ensuring the reliability of the pump shaft, product procurement costs can be reduced.
- The suction port of the salt precipitation and cold precipitation pump is in the shape of a bell mouth, which can significantly reduce the inlet flow rate of the suction port and has good suction performance.
- Suction flange is horizontal, discharge flange is vertical, flange standard can be GB, HG, DIN, ANSI. to meet client’s requirments.
- The bearings are installed inside the main bearing box and are lubricated with grease.
- The combination of tapered roller bearings and cylindrical roller bearings ensures a long service lifespan .
- Shaft seal can be packing seal and mechanical seal.
- Seal of pump and auxiliary flush plan will be in accordance with API682 to ensure safe and reliable seal in different work conditions.
A.Cartrige Mechnical Seal
- Washing medium shall be clean low temperature solution;
- Washing pressure shall be higher than the pump outlet pressure by 0 . 3 – 0 .4Mpa .
- Flow rate: 3 – 5 m3/h.
B.Packing Seal
1.packing; 2.sleeve; 3.packing cover; 4.nuts; 5.shaft.
- Packing sealing can be selected when the medium is clean harmless medium with temperature less than 80 ℃ .
- The packing seal has inner and outer layer seals; when replacing the packing, just replate the out layer seal, no need to drain the circulating medium, making the replacement quick and convenient.
Variable Structures:
ZLH Performance Profile
ZLHl and ZLHF Performance Profile
