Buoy submersible pump

Buoy submersible pump

Service condition:

It is mainly used for carrying water from deep well,it is widely used for farmland irrigation,urban and rural living areas, water supply and drainage in industrial and mining enterprises,precipitation in construction projects,rivers/reservoirs/fountains/refrigeration system,greenhouse planting and other water conservancy projects.

Product instruction:

QJ deep well pump,QJ pump,well submersible pump,stainless steel Zhonglan deep well pump, are energy-saving products designed according to the national standards. It’s widely used in agricultural irrigation,water supply and drainage of industrial and mining enterprises,and water for people and livestock in plateau and mountainous areas.This kind of pump is composed of QJ submersible pump and YqS submersible motor that work under water together.It is characterized by simple structure,small volume,light weight, convenient installation and maintenance,safe and reliable operation,high efficiency,energy saving ,etc.

Product characteristics:

The water pump is centrifugal or mixed-flow type;adopt water-lubricated bearing;the connection with the motor is rigidly connected by coupling. Driven by motor,the pump impeller rotates to produce centrifugal force,which makes the liquid energy increase through the diversion action of the pump shell to carry water. A check valve is provided at the upper of the pump to prevent the working parts from being damaged by the back flow in the water pipe when the electric pumps stops.There are drainage holes on the valve,the water in the pipe can be slowly released to prevent freezing and cracking in winter.(remark: no check valve for low lift submersible pump)

Performance parameters:
Flow :50-2600m3/h

Water head range:300-1500m

1.For deep well : pump body outer diameter 143mm,the water head range can reach 1500m,the flow is 30m3/h

2.For mine well: 460mm-570mm pump body outside diameter, 100m3 flow,800m water head range, 300m3 flow, 500m water head range.

the flow can reach up to 200tons per hour,and the water head range can reach up to 1500m

Poer:3-3000kW(two-stage speed motor,can be customized four-stage and six-stage motor)
Speed:2900rpm(two-stage speed motor)

Material:HT200、QT500、304，316

Remarks:

1.Deep well pump should be used in clean water sources with a sand content of less than 0.01%. Pump room is equipped with pre-moisturizing water tank whose capacity should meet the pre- moisturizing water for one start.

2.For newly installed or overhauled deep well pumps,the clearance between the pump shell and the impeller should be adjusted to avoid the friction between the impeller and the shell during running.

3.Before the operation,the deep well pump should pass clean water into the shaft and bearing shell for pre-moisturizing

4.Before starting the deep well pump,the inspection items should meet the following

Requirements:
1.Base bolts have been tightened.

2.The axial clearance meets the requirements,the safety nut of the adjusting bolt has been installed.

3.The packing gland has been screwed and lubricated.

4.The motor bearings are lubricated.

5.Rotating the rotor and stop mechanism by hand are flexible and effective.

6. Zhonglan Deep well pumps should not be idled without water. The primary and secondary impeller of the water pump should be immersed below 1m water level,the change of the water level in the well should be checked frequently during operation.

7.During running,when a large vibration is found around the foundation,pls check the pump bearings or motor packing wear state,if there is excessive wear and water leakage,should change new pieces.

8.The deep well pump containing mud and sand has been sucked and discharged,before stopping the pump,pls rinse with clean water.

9.Before stopping the pump,should first close it,cut off the power supply,lock the switch box. If it is winter,should release all water in the pump completely.

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