• The HL type pump is a vertical single-stage guide vane mixed flow pump. This pump is an improved product launched by our company based on domestic and foreign pump manufacturing technology. Compared with the old product, it has the characteristics of high efficiency, large flow rate, good cavitation performance, and reliable operation.

• The HL series mixed flow pumps are all vertical structures, and the HLB type pump blades are semi adjustable. When the blade angle needs to be adjusted, the blade fastening screws can be loosened, the blades can be rotated to the desired angle, and the blade placement angles can be consistent. Then, the screws can be tightened to achieve the purpose of changing the operating conditions.

• When a large pump is equipped with a large vertical motor, the motor is directly installed on the motor foundation beam, and the motor shaft is connected to the water pump shaft coupling with hinged holes and bolts. The axial force of the water pump operation is also borne by the thrust bearing in the large vertical motor.

• The outlet channel of a pump generally adopts a straight pipe outlet, which is connected to a water tapping valve after passing through a diffusion pipe. Large pumps can also use a siphon outlet channel, equipped with a vacuum breaking valve to cut off the flow.

application area

It can be used for water supply and drainage of large and medium-sized farmland hydraulic facilities, power stations, urban flood control and water supply, industrial and mining, and dock water supply and drainage, especially suitable for occasions with large water level changes and high lift.

scope of work

• Clear water and media with physical and chemical properties similar to water

• Medium temperature: ≤ 50 ℃

• Head range: 4.5-34.6m

• Pump outlet diameter: 500-1200mm

• Motor insulation level: Class B or Class F

• Voltage: 380V-10000V

• Flow range: 900-18300m ³/h

• Motor protection level: IP23 or IP44

classification

• For diagonal flow pumps, they can be divided into single-stage and multi-stage according to the number of impeller stages.

• According to the spindle direction, it can be divided into vertical, inclined, and horizontal types.

• According to the installation method, it can be divided into single-layer foundation and double-layer foundation.

• According to the blade installation method, it can be divided into fixed, semi adjustable, and fully adjustable.

• According to the way of bearing axial thrust, it can be divided into pump bearing, foundation bearing, and motor bearing.

• According to whether the rotor can be extracted, it can be divided into non extractable type and extractable type (rotor extractable type, integral extractable type).

Explanation of General Structural Terminology

• Closed structure: The motor base is directly installed on the motor beam, and the water pump components must be lifted in from a separate lifting hole.

• Open structure: The motor base is installed on the motor base plate, and during installation and maintenance, the motor base plate can be removed to lift out the water pump components.

• Fixed blade impeller: The impeller is made up of blades and blade hub as a whole, and the blade placement angle is fixed and unchanged. The performance parameters of the pump are also fixed and unchanged.

• Half adjustable blade impeller: The impeller is usually assembled and combined with blades, and the blade placement angle is determined by the positioning pin combined with it according to the required placement angle. When adjusting the placement angle, the pump must be disassembled or the rotor components must be extracted.

• Fully adjustable blade impeller: Through a set of adjustment mechanisms (hydraulic, mechanical, connecting rod), the blade placement angle can be infinitely adjusted manually, electrically, or remotely controlled by a microcomputer during pump operation.

• Axial thrust of pump: The downward axial force generated by the hydraulic factors of the pump itself, the self weight of the rotor, and the weight of water inside the pump during operation.

Structural diagram of vertical mixed flow pump