QZ Series Submersible Axial Flow Pump

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Product Description

Overview
QZ series submersible axial flow pump is a new generation of submersible axial flow pump products independently developed by our company,it is not only simple in structure,easy to disassemble and assemble,but also has excellent performance as an alternative to traditional axial flow pump.
This QZ series of products has a wide spectrum,good hydraulic performance and novel structure.it is characterized by high efficiency,good cavitation performance,easy installation and maintenance,at the same time,combined with the latest information control technology,the intelligent water pump system independently developed can be configured,with automatic monitoring function.
The design,manufacture,and quality of this series product meet the standard of GB/T13008?Technical conditions for mixed-flow pump and axial-flow pump??JB/T?Large and medium-sized submersible motor-pumps?

Application
This series of products can be used for clear water or other liquids with physical and chemical properties close to water whose temperature of conveying medium is no more than 43?. They are widely used in municipal engineering, large-scale water conservancy projects, farmland irrigation,industrial conveying water.The thermal power station car-ries circulating water.Shipyard level,urban water supply and drainage and water diversion projects

Working condition
? The medium:clear water,rain water,river water,sewage waste water,any of various liquids whose physicochemical properties resemble those of water
?Rated voltage:380V or 660V?3KV?6KV?10KV,etc
? Medium temperature: ?43?
? Starting mode : soft start or frequency conversion
?Direction of rotation:from the drive end,the pump is rotated in clockwise

Product features
High-efficiency energy saving: the hydraulic model is designed by 3-D flow theory and calculated by CFD computational simulation,with the best performance in theory. Hydraulic components are made of metal mold,cast precisely guide blade mould is machined by CNC;guide blade shell and suction cone blank are cast by resin sand,solid flow channel is completely in accordance with design drawings,with efficiency higher, and wide high efficiency zone
High reliability:the design of the inlet flow channel is reasonable, the inlet water is uniform without vortex, with smooth running, the absolute concentricity o the pump shaft, and the excellent static balance of the rotor parts ensure that the pump has low vibration and low noise when running at high speed
Advanced technology:all parts using metal mold,precision casting,parts quality is reliable
Low maintenance: reasonable structure,convenient assembly and disassembly, and simple maintenance
Inventory management: reasonable inventory management,short lead time,fast delivery
Automatic monitoring: Equipped with intelligent water pump system independently developed,with automatic monitoring function

Structural feature
1.Special submersible motor
The whole series of F/H grade insulation,B grade temperature rise assessment, protection grade is IP68;the motor has low energy consumption, low temperature rise, and high stability.It has better heat resistance and longer life than ordinary motors.The wiring cavity is sealed from the stator and rotor of the motor, with double insurance.The motor bearing adopts the auxiliary oil tank structure to increase the service life of the bearing.
2.Motor pump protection system
The motor has a number of built-in warning sensors,including the leakage in the wiring chamber,the motor cavity and the oil chamber, and the temperature rise of the bearding and the motor coil. The motor is equipped with water leakage monitoring,and the oil chamber is equipped with oil mixed water probes.There is comprehensive monitoring of motor operating conditions.
3.Hydrodynamic parts
The 3-D flow theory design and CFD computational simulation are adopted,with high efficiency and wide high-efficiency zone, and good cavitation performance;
Independently developed hydraulic model,high efficiency area is wide
Adopt metal mould, precision casting
4.Cable locking sealing system
The cable outlet adopts special structure,which eliminates water leakage, electricity leakage,short circuit,and stator coil burnout caused by accidental factors such as artificial pulling,broken cable jacket, and cable aging,which effectively reduces the probability of failure caused by water in the upper part of the whole machine
5.Bearings
At the pump end is equipped with a thrust spherical roller bearingsthe oil lubrication,withstand the axial thrust of pump,There are one cylindrical roller bearding and one deep groove ball bearinggrease lubricationequipped with the top and bottom of the motor, withstand the radial force of rotor.The bearing running stable,and the motor shaft will not movement,so the bearing has little heat and no noise during the operation of the pump

Basic Information

About Us

LEO Group Pump Hunan Co.Ltd. founded in 2000,it is a wholly-owned subsidiary established and invested by LEO Group Co., Ltd. and located in Jiuhua Economic Development Zone of Xiangtan City, Hunan Province. It covers an area of 253.2 Mu and construction area of approx. 92,635 m2 with total investment of approx. 490 million yuan. It is the most important RD, manufacturing and testing center of LEO group. The leading products include large mixed flow pump, large mixed axial flow pump vertical, horizontal, oblique, tubular, submersible etc., double-suction centrifugal pump, multistage centrifugal pump, slurry pump, desulphurization pump and submerged centrifugal pump. Conventional products are mainly used in mine, metallurgy, coal washing, FGD, municipal water etc. There are numerous high-grade precision and advanced processing equipments, such as 8m CNC vertical lathe and 5-axis linkage machining center, 6m CNC grinding machine and 14m deep well-type thermal treatment furnace. A world-class pump testing center with testing power up to 12,500 kW realizes high precision tests for real pumps which are used for power station, water conservancy and water resources, petrochemical industry, mining and metallurgical industry.

The company is a nationally recognized technology center with strong technology research and development capabilities. It undertakes large-scale water conservancy projects such as the National South-to-North Water Diversion, the Yangtze River to Huaihe River Diversion Project, and the Yellow River Diversion Project, and has newly developed several models for large vertical volute pumps, double-suction centrifugal pumps, multi-stage split pumps, vertical guide vane mixed flow pumps, and axial flow pumps. Some models have been successfully accepted at the China Water Resources Beifang Investigation, Design and Research Co. Ltd. BIDR , efficiency reaching the international top level. Following models will be applied in the Pearl River Delta, the second phase of the South-to-North Water Diversion, and the Belt and Road Initiative etc. national key projects.

LEO has established a complete product quality management system, from product design and development, manufacturing, parts inspection to after-sales service in full compliance with the requirements of the ISO9001 quality management system, thus ensuring that production and operation activities can be highly efficient and high-quality The operation of each product can serve users efficiently and reliably.

As a backbone enterprise in the pump industry,we will vigorously promote the Leo spirit of exploiting,never at rest,emphasize customer value and organizational execution,give full play to the innovation mechanism and sonstantly improve themselves,to provide customers with first-class products and quality services,strive to realize the Leo peoples's broad vision of improving the image of the fluid machinery industry in China,achieving a industry leader of sustainable development.

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