Floating Deep Well Submersible Pump

Buoyancy pump type submersible pump made into a horizontal submersible pump, the buoy device, fixing device, export device and other combination assembly, the overall use of the water. Advantages: its installation is simple and fast, easy to pump, easy to replace and maintenance of the pump.Suitable for rivers, lakes water basin water, emergency water engineering projects need to respond quickly.Compared with the traditional civil engineering, the cost of civil engineering is saved, the comprehensive cost is low, and the practicability is strong.

The buoy pump can adjust its position according to the change of water level, which can always keep the submersible pump in the same position underwater.

We are pleased to introduce our product, a three-phase AC 380V power supply (tolerance ± 5%), 50HZ (tolerance ± 1%) submersible pump. The product requires water quality meets the following conditions: water temperature is not higher than 20 °C; solid impurities content (mass ratio) is not greater than 0.01%; PH value (pH) is 6.5-8.5; hydrogen sulfide content is not more than 1.5mg/L; chloride ion content is not greater than 400mg/L. The motor adopts a closed or water immersion wet structure. Before use, the inner cavity of the submersible motor needs to be filled with clean water to prevent mistakes. And the water injection and exhaust bolts need to be tightened, otherwise it can not be used. The submersible pump must be completely immersed in water to work, the immersion depth shall not exceed 70 meters, and the distance between the bottom of the submersible pump and the bottom of the well shall not be less than 3 meters. The well water flow should be able to meet the water output and continuous operation of the submersible pump, and the water output of the submersible pump shall be controlled at 0.7-1.2 times of the rated flow. The well must be vertical, and the submersible pump can not be used horizontally or inclined, but only vertically. The submersible pump must match the cable according to the requirements and be equipped with external overload protection device. The pump is strictly prohibited from no-load test without water. This product is suitable for a variety of demanding pump working environment, guaranteeing efficient and stable operation, which is your ideal choice.

All models can be customized, please contact us for details.

1, well submersible pump for clean water pump, prohibits the new well, pumping sediment and muddy water,

2, well water pump voltage grade 380/50HZ, the use of other voltage grades of submersible motors need to be customized. The underground cable must use waterproof cable, must be equipped with starting equipment, such as distribution box, start not ready should have commonly used motor comprehensive protection function, such as short circuit overload protection, phase protection, undervoltage protection, grounding protection, idling protection, in case of abnormal conditions, the protection device should be timely action trip.

3, the installation and use of the pump must be reliably grounded, prohibits the push and pull switch when the hands and feet are wet, must cut off the power supply before installation and maintenance of the pump, the pump use place to set up "to prevent electric shock" obvious signs:

4, down the well or before installation, the motor cavity must be filled with distilled water or non-corrosive clean cold boiling water, tighten the / water bolt, the pump on the ground test run, must be to the pump chamber water lubrication rubber bearings, instant start not more than a second, see whether the steering is the same as the steering instruction. When the pump is upright, pay attention to safety, prevent overturning injury.

5, strictly according to the provisions of the pump lift, flow range of use, to prevent low flow or high lift pumping force, the thrust bearing and other parts of the wear, the motor overload burned

6, after the pump down the well, the measurement of the motor to the ground insulation resistance should not be less than 100M, after the start to observe the voltage and current, check the motor winding insulation, whether in line with the requirements; pump storage location temperature if less than freezing point, should be dry the water in the motor cavity, prevent the motor cavity water ice damage caused by low temperature.

 Brief introduction of structure: pump part is mainly composed of pump shaft, impeller, diversion shell, rubber bearing, check valve body (optional parts) and other components.Motor part is mainly composed of base, pressure regulating film, thrust bearing, thrust plate, lower guide bearing seat, stator, rotor, upper guide bearing seat, sand ring, water inlet section, cable and other components.

The main features of the product include:

1, The motor is a water-filled wet submersible three-phase asynchronous motor, the motor cavity is full of clean water, used to cool the motor and lubricate the bearing, the pressure regulating film at the bottom of the motor is used to adjust the expansion and contraction pressure difference of the water inside the body caused by the change of the temperature rise of the motor.

 2, In order to prevent the sand in the well water from entering the motor, the upper end of the motor shaft is equipped with two oil seals, and a sand ring is installed to form a sand prevention structure.

 3, In order to prevent the pump shaft from running up when starting, the pump shaft and the motor shaft are connected by a coupling, and an upper thrust bearing is installed at the lower part of the motor.

 4, The lubrication of the motor and the pump bearing is water lubrication.

 5, The motor stator winding is made of high quality submersible motor winding wire, with high insulation performance.

 6, The pump is designed by computer CAD, with simple structure and good technical performance.

(1)Preparation before installation:
1. Check whether the submersible pump meets the usage conditions and scope specifed in the manual.
2. Using a heavy obiect with a diameter equal to the maximum outer diameter of the submersible pump, measure whether the inneldiameter of the wellbore can fit the submersible pump, and measure whether the well depth meets the installation requirements.
3. Check whether the wellbore is clean and whether the well water is turbid. Never use a submersible electric pump to wash the welor pump mud and sand water to avoid premature damage to the submersible electric pump.
4. Check whether the position of the welhead installation clamp is suitable and whether it can withstand the qualty of the entire unit
5. Check if the submersible pump components are complete and installed properly according to the assembly diagram in the manualRemove the filter screen and rotate the coupling to see if it rotates flexibly
6. Unscrew the water screw and fillthe motor cavity with clean, non corrosive water (note. be sure to fil it up), then tighten the waterscrew. After 12 hours of water injection, the insulation resistance of the motor should not be less than 150M Q when measured witha 500V shaking table.
7. Cable joint, cut off a 120mm rubber sleeve from one end of the outgoing cable and the matching cable with an electrician's knifethen stagger the length of the three core wires in a stepped shape, peel off a 20mm copper core, scrape of the oxide layer on theoutside of the copper wire with a knife or sand cloth, and insert the two connected wire ends in palirs.After tying the layer tightly with fine copper wire, solder it thoroughly and firmly, and sand of any. burrs on the surface. Then, forthe three joints, use polyvester insulation tape to wrap them in a semi stacked manner for three lavers. Wrap the two ends of thewrapping layer tightywith nyion thread,and then use a semi stacked method to wrap the tape for three layers. Wrap the outellayer with high-pressure insulation tape for three layers. Finally, fold the threestrands together and repeatedly wrap them for fivelayers with high-pressure tape. Each layer must be tightly tied, and the interlayer joints must be tight and fimm to prevent water frompenetrating and damaging the insulation, After wrapping, soak in water at room temperature of 20 ’c for 12 hours, and measurethe insulation resistance with a shaking table, which should not be less than 100M Ω

The attached cable wiring process diagram is as follows:

8. Use a multimeter to check whether the three-phase wires are connected and whether the DC resistance is approximately balanced.
9. Check whether the circuit and transformer capacity are overloaded, and then connect the overload protection switch or starting equipment. See Table 2 for specific models, and thenPour a bucket of water into the water pump from the water pump outlet to lubricate the rubber bearings in the pump, and then place the submersible electric pump upright and steady.Start (no more than one second) and check whether the steering direction is consistent with the steering sign. If not, swap any two connectors of the three-phase cable.Then install the filter and prepare to go down the well. If used in special occasions (such as ditches, ditches, rivers, ponds, ponds, etc.), the electric pump must be reliably grounded.

(2)Installation equipment and tools:
1. One pair of lifting chains for more than two tons.
2. A tripod with a vertical height of no less than four meters.
3. Two hanging ropes (wire ropes) that can bear a weight of more than one ton (can bear the weight of a complete set of water pumps).
4. Install two pairs of clamps (splints).
5. Wrenches, hammers, screwdrivers, electrical tools and instruments, etc.

(3)Electric pump installation:
1. The installation diagram of the submersible electric pump is shown in Figure 2. The specific installation dimensions are shown in Table 3 "List of Installation Dimensions of the Submersible Electric Pump".

2. Submersible electric pumps with a head less than 30 meters can be hoisted directly into the well using hoses and wire ropes or other hemp ropes that can bear the full weight of the entire machine, water pipes, and water in the pipes.

3. Pumps with a head of more than 30 meters use steel pipes, and the installation sequence is as follows:
①Use a clamp to clamp the upper end of the water pump part (the motor and water pump have been connected at this time), lift it with a hanging chain, and slowly tie it into the well untilPut the clamp on the wellhead and remove the hanging chain.
②Use another pair of clamps to clamp a pipe, lift it with a hanging chain 15 cm away from the flange, and lower it slowly. Between pipe flange and pump flangePut the rubber pad in place and tighten the pipe and pump evenly with bolts, nuts and spring washers.
③Lift the submersible pump slightly, remove the clamp on the upper end of the water pump, tie the cable firmly to the water pipe with a plastic tape, and slowly tie it down until The clamp is placed at the wellhead.
④Use the same method to tie all water pipes into the well.
⑤After the lead-out cable is connected to the control switch, it is connected to the three-phase power supply.

(4)Things to note during installation:
1. If a jamming phenomenon is found during the pumping process, turn or pull the water pipe to overcome the jamming point. If various measures still do not work, pleaseDo not force the pump down to avoid damage to the submersible electric pump and the well.
2. During installation, a rubber pad should be placed at the flange of each pipe and tightened evenly.
3. When the water pump is lowered into the well, it should be placed in the middle of the well pipe to prevent the pump from running against the well wall for a long time, causing the pump to vibrate and the motor to sweep and burn.
4. Determine the depth of the water pump to the bottom of the well according to the flowing sand and silt conditions of the well. Do not bury the pump in the mud. The distance from the water pump to the bottom of the well is generally not less than 3 meters (see Figure 2).
5. The water entry depth of the water pump should be no less than 1-1.5 meters from the dynamic water level to the water inlet node (see Figure 2). Otherwise, the water pump bearings may be easily damaged.
6. The lift of the water pump cannot be too low. Otherwise, a gate valve needs to be installed on the wellhead water pipeline to control the pump flow at the rated flow point to prevent the motor from being overloaded and burned out due to large flow rates.
7. When the water pump is running, the water output should be continuous and even, the current should be stable (under rated working conditions, generally no more than 10% of the rated current), and there should be no vibration or noise. If there is any abnormality, the machine should be stopped to find out the cause and eliminate it.
8. When installing, pay attention to the setting of the motor grounding wire (see Figure 2). When the water pipe is a steel pipe, lead it from the wellhead clamp; when the water pipe is a plastic pipe, lead it from the grounding mark of the electric pump.

• 1 submersible pump installation is complete, re-check the insulation resistance and three-phase conduction from the switch, check the instrument and start the equipment connection error, if there is no problem, can start the trial run, after the start of the instrument indicating readings whether more than the nameplate stipulated rated voltage and current, observe the pump noise and vibration phenomenon, everything is normal can be put into operation.
• 2 pump operation for the first four hours, should be shut down quickly test the thermal insulation resistance of the motor, the value should not be less than 0.5 megaohm.
• 3 pump shutdown, should be interval five minutes after the start, prevent the water column in the pipe has not completely reflux and cause the motor current is too large and burning.
• 4 pump into normal operation, in order to prolong its service life, to check the supply voltage, working current and insulation resistance is normal, if found the following situation, should immediately shut down troubleshooting.
•  
• - in the rated condition, the current is more than 20%.
• - dynamic water level to the water inlet section, causing intermittent water.
• - submersible pump severe vibration or noise.
• - supply voltage is lower than 340 volts.
• - fuse burned out a phase.
• - water pipe damage.
• - motor to the thermal insulation resistance is less than 0.5 megaohm.
•  
• 5 this product has the characteristics of easy disassembly, can be disassembled by simple steps.
• Disassembly steps include: 1 untie cable rope, remove pipeline components and line protection plate. 2 screw down the water discharge screw and discharge all water in the motor chamber. 3 remove the filter and loosen the fixing screw on the coupling fixed to the motor shaft. 4 screw down the bolt connecting the water inlet part and the motor, and separate the pump and the motor (pay attention to keep the unit horizontal to prevent the bending of the pump shaft when separating). 5 the sequence of disassembly of the pump is: (see Figure 1) water inlet part, impeller, shunt shell, impeller, check valve body.
• When removing the impeller, use a special tool to loosen the conical sleeve fixing the impeller. In the process of disassembly, avoid bending the pump shaft and damaging various components.
• 6 the process of motor disassembly is: (see Figure 1) put the motor on the platform, and then remove the nuts on the bolts (pull rod bolts), base, shaft head lock nut, thrust plate, key, lower guide rail, slightly damaged) and finally remove the connecting part and upper guide rail bearing seat.
• 7 unit assembly: before assembly, the rust and dirt of each component should be cleaned, and the sealant should be applied on each mating surface and fastener, and then the assembly should be carried out in reverse order of disassembly (the movement of the motor shaft after assembly is about one millimeter), after the assembly is completed, the coupling should rotate flexibly, and then put the filter for test.6. Submersible pumps shall be taken out of the well for dismantling and maintenance according to Article 5 after a year of operation, or less than a year of operation but two years of diving time, and the worn parts shall be replaced.

 1, put out the water in the motor cavity (especially in winter to prevent the motor from freezing), and tie the cable well.

 2, store in an indoor room without corrosive substances and gases, with a temperature below 40 °C.

 3, long-term use should pay attention to the rust prevention of submersible pumps.

01 Deep well water intake

02 High-rise water supply

03 mountain water supply 

04 tower water

05 Agricultural irrigation

06 garden irrigation

07 river water intake

08 domestic water