QZB submersible axial flow pump

QZB submersible axial flow pump

Submersible axial flow pump is suitable for drainage and irrigation pump station Large flow Low lift The transmission water quality is raw water Or light sewage The temperature of conveying medium is below 50 ℃ The lift is less than 10 meters, and the operation is simple Easy to use Fit the system An underground pumping station can be built Keep the ground clean It is suitable for the river with large fluctuation of water level Stations will be built in lake areas Is the solution to the complete flood control.

Power: 15-2500 kw

Head: 1-10 M

Flow: 350-50000 M ³/ h

Purpose and characteristics axial pump

QZB submersible axial-flow pump is an updated product of the traditional split unit. The motor driving the water pump is a dry fully enclosed submersible three item asynchronous motor. The water pump of the unit is coaxial with the motor and can dive underwater for a long time. It has incomparable advantages of a series of traditional units. Since the water pump and motor are integrated and dive into the water at the same time, there is no need to install them on site to enjoy the labor-consuming and time-consuming assembly process of centering the machine and pump axis, and the on-site installation is convenient and fast. As the electric pump runs in the water, it can greatly simplify the civil parts structure of the pump station, reduce the installation floor area and save 30% - 40% of the total civil engineering cost of the pump station. The electric pump runs in the water with low noise and good motor cooling conditions. There is no high temperature and noise interference in the pump station, which improves the working environment of the pump station. At the same time, all underground pumping stations can be built as required to maintain the environmental style of the ground. In terms of operation, it is flexible and can start and shut down the unit at any time. There is no need to lubricate the rubber bearing of the water pump before starting up again. It is easy to realize remote control and automatic control. The unit is easy to pull and disassemble and easy to maintain. The unit is used to solve the problem of large fluctuation of water level along the river. The method of flood control of stations in Lake area eliminates the long shaft between pump and motor and improves the operation reliability.

Model meaning

Service conditions

·Power supply, frequency 50Hz, voltage 380V three-phase AC power supply

·Water temperature not higher than 40 ℃

·The pH value of water should be in the range of 5.5-8.5

·The electric pump must be fully submerged, and the submergence depth shall not be less than 0.8m

Selection of supporting electric cabinet

1. When the step-down starting cabinet (9.2kw-410kw) is started, the impulse current is small and the step-down is small. Because the starting cabinet impacts the power grid, it is not suitable for frequent start-up.

2. Soft start cabinet (2.2kw-410kw) soft start cabinet: the current is small during start-up, has no impact on the power grid, can be used for frequent start-up, and has the function of phase loss and overload protection.

3. Variable frequency starting cabinet (7.5kw-500kw) variable frequency starting cabinet: it has full functions, and different specifications have the protection functions of short circuit, phase loss, three-phase unevenness, overload and water shortage.

Construction