Axial Flow Submersible Electric Pump

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Description

Axial(fixed)flow submersible electric pump is made up of YQGN type submersible motor and Z(H)LB type vertical axial(fixed)flow pump.It is mainly used in the water supply and drainage of large submersible pump station.It can be installed easily,operates steadily without producing environmental noise or environmental high temperature.

Application Area

The pump can be used in agricultural irrigation,industry&mining,dock,urban construction and water-supply project,and water-supply&drainage of power plant.

Performance Range

Outlet diameter:1000~1600 mm

Capacity:6000~40000 m3/h

Head:1.9~18 m

Speed:250r/min 295r/min 365r/min 490r/min   590r/min

Motor power:60~1600kW(380V、6kV、10kV)

Structural Characteristics

  Motor and pump are integrated,so there is no need to assemble motor,driving machine or other parts during assembly.

  Installation area can be reduced due to the working under the water,saving 30%~40% project cost.

  Noise is low,and there is no high temperature in the pump station.Underground pump station can be built according to requirements.The environmental landscape of ground shall be kept.

  Double or triple mechanical seal is used on the submersible motor with F Grade insulation(Temperature resistance 155℃),protection grade IP68(IEC).As for hydraulic model,we absorb the advantages of products home and abroad,using the most advanced Non-constant Circulation,variable axial surface speed method.New hydraulic electrogenerating model is separately designed with high efficiency and energy-saving and better anti-cavitation performance.It is high reliable,and can be changed with traditional pump,which is convenient for users to choose types and to use.

  It is operated easily.Remote control and automatic control can be achieved.

  The submersible electric pump is used to solve the fluctuation of water,the building of pump station in lake area,etc.The long shaft and middle bearing of pump are saved which makes the machine work steadily and reliably.

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Q:How to select hydraulic pump?
1. rpmOperating speed is the actual rotation speed of a pump (or motor) at work.Rated speed is the maximum speed that can operate normally for a long time under rated pressure. If the pump exceeds the rated speed, the work will cause insufficient oil absorption, vibration and noise, the parts will suffer cavitation damage, life expectancy.Minimum steady speed is the minimum speed allowed for normal motor operation. At this speed, the motor does not appear crawling phenomenon.
Q:Suction stroke and lift of water pump
The absorption process is also called the "largest self-priming height" (also can be understood as "the degree of self suction). Micro pumps do not add water at the circumstances, can automatically water suction pump up the maximum height (the vertical distance from the pump to be pumped from the mouth of pumping liquid).Generally lower than the water pump positioned equal when there is self-priming pump required capacity. For example, outdoor tourism, need to extract the water in the river, with the best micro pump self-priming ability (impossible to people ran to the river water inlet pipe with water. It) or pumping the liquid corrosion, easy to add water and so on occasions.
Q:Why should the pump be closed when the centrifugal pump is started?
On the other hand, the water on the pipe of the inlet pipe of the pump is stationary before the pump is opened, such as the sudden acceleration, and the water behind it can not keep up, which will cause the pressure of the inlet to drop suddenly and vaporize the water, and the centrifugal pump will be evacuated. (because of the centrifugal pump is rotating centrifugal force generated by the pump, leaf water and steam driven (gas) quality is very light, according to F= Ma, the centrifugal force is small, the pump can not be water sent).
Q:Which nuclear submarines use the shaftless pump technology?
At present, the submarine has been used in the pump jet technology, the most representative is the United States Virginia class submarine and the Russian North Sea God class submarines.. And shaftless pump is a derivative application of superconducting technology, which is more advanced than pump jet technology..If you want to learn more about shaftless pump technology, you can find relevant papers online.
Q:What are the starting and stopping procedures for centrifugal pumps?
Operation method and operation procedure of self-priming centrifugal pumpClick number: 440 release time: 2011-7-24Centrifugal pump method, centrifugal pump operation steps, centrifugal pump use steps
Q:What are the conditions required for hydraulic pumps to complete oil absorption and compression?
2, the change of working volume is periodic, and in each cycle, the oil absorption process is changed from small to big, and the process of oil pressure is changed from large to small;3, suction oil cavity must be separated from each other without interference.
Q:Water pump dead center lift
The dead point head is the measured head after the outlet valve is closed. Mainly on the lower reaches of the pump equipment, such as your dead center, the lift is 300 meters, that is, 3MPa
Q:The function of centrifugal pump
The basic structure of the centrifugal pump is composed of six parts, namely: impeller, pump body, pump shaft, bearing, sealing ring, stuffing box.1, the impeller is the core part of the centrifugal pump, it is high speed, large output, the impeller blade and play a major role in the impeller before assembly, through the static equilibrium experiment. The inside and outside surfaces of the impeller are required to be smooth, so as to reduce the friction loss of the water flow.
Q:What are the advantages and disadvantages of the pump control system and valve control system in the hydraulic system?
Pump control system is generally used for closed systems, the flow of the oil pump changes to control the motor or cylinder actuator action. The utility model has the advantages that the principle is simple, and the power of the engine can be fully utilized. The disadvantage is that the calorific value of larger, relatively poor precision.
Q:What is the principle of a turbopump?
The working conditions of the turbine are different from those of the medium used, so the structure of the turbine is varied, but the basic working principle is similar. The most important component of a turbine is a rotating element (rotor or impeller) mounted on a turbine shaft with blades uniformly arranged along the circumference. The energy of the fluid is converted into kinetic energy in the flow through the nozzle, and when the fluid passes through the rotor, the fluid impacts the blade and drives the rotor to rotate, thus driving the turbine shaft to rotate. The turbine shaft drives the other machinery directly or through the transmission mechanism, and outputs mechanical work.

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