Dive deep well pump

QJ series submersible deep well pump Product Overview QJ-type wells with submersible pump motor and pump are directly connected into the water one working water equipment, it applies to the extraction of groundwater from a deep well, can also be used for rivers, reservoirs, canals and other water projects : mainly used for irrigation and livestock water mountain plateau, also for cities, factories, railways, mines, water supply and drainage construction site use. QJ series submersible deep well pump Features 1, motor, pump body, into the water to run, safe and reliable. 2, tube wells, pumping water, no special requirements (ie: steel wells, tube wells gray, Doi, etc. can be used; the pressure permit, pipe, hose, plastic pipe, etc. can make ascending pipe used). 3, installation, use, maintenance easy and convenient, small footprint, without the construction of pumping stations. 4, the structure is simple, saving raw materials. Conditions submersible pump used is appropriate, properly managed has a direct relationship with life. QJ series submersible deep well pump conditions of use of the submersible pump to run continuously used under the following conditions: 1. The rated frequency of 50HZ, rated voltage of 380 ± 5% V three-phase AC power source. 2. The pump inlet must be in moving water one meter bit less, but still diving depth of not more than 70 meters below the water level, the lower end of the motor from the bottom of the depth of a minimum of more than 1 meter. 3. The water temperature no higher than 20 ℃ 4. Quality requirements: (1) the amount of sand in water not more than 0.01% (by weight); (2) PH value in the range of 6.5 to 8.5; (3) the chloride ion content of not more than. 400 mg / liter. 5. Calls wells positive, wall smooth, not a well pipe staggered. QJ series submersible deep well structure description 1, QJ submersible pump unit consists of: pumps, submersible motors (including cable), pipes and control switch four major components. Submersible pump is single suction multi-stage vertical centrifugal pumps: submersible motor is sealed water-filled wet, vertical three-phase cage induction motor, motor and pump through the claw coupling or single-cylinder direct health; is equipped with three different sizes core cable; start-up equipment for the different capacity levels of air switch and self-dual vacuum starter, pipes made of steel pipes of different diameters, flange connection, highlight the theme of the program using the pump control valve. 2, each stage submersible pump is equipped with a rubber diversion shell bearings; impeller with a tapered sleeve is fixed to the shaft; diversion shell with screw or bolt into one. 3, lifted Submersible Pump top with check valve, avoid downtime caused by water hanging unit damage. 4, submersible motor shaft unit is equipped with a labyrinth seal skeleton sand and two reverse assembly, preventing the flow of sand into the motor. 5, submersible motor with water lubricated bearings, the lower tone laminated with rubber, pressure spring, composition surge chamber, adjust the pressure caused by changes in temperature; the motor windings polyethylene insulation, nylon jacket water consumer durables Wire , cable connection manner QJ-type cable connector technology, scrape the paint off the joint insulation were connected, welding firm, with a layer of raw rubber around. Waterproof adhesive tape and then wrapped around 2 to 3 layers, 2 to 3 layers of waterproof adhesive tape or water on the outside of the bag with a knot wrapped in a layer of rubber (bicycle inner tube) to prevent water seepage. 6, motor sealed precision stop using mouth bolt, cable outlet add cushion seal. 7, the upper end of the motor has a water hole, there is a bleed hole, the lower part has a drainage hole. 8, the lower motor is equipped with upper and lower thrust bearing, thrust bearing grooves for cooling, and it is stainless steel thrust plate mill, with the upper and lower pump axial force. Precautions QJ series submersible deep well one must be filled with water before the motor use, tighten the bleeder screw injection, or allowed to be used. Second, the land Commissioning shall not exceed one second. Third, the pumps are not allowed to use lying or pour. Fourth, the motor must be completely submerged, but sneaked into the depth should be no greater than 70 meters. Fifth, lead with cable connector according to stipulations. Six Order high lift submersible pump, please refer to the "high lift submersible pump type spectrum" and "high lift submersible pump Manual." QJ series submersible deep well pump operation, maintenance, operation and maintenance 1. The pump should always observe the current, voltage meter and the water flow, and strive to pump operation at rated conditions. 2, the application valve regulating the flow, head, do not overload the run. One of the following conditions should be stopped immediately: a, rated voltage inch current exceeds rated: b, nominal head, lower at larger flow than normal; c, the insulation resistance of less than 0.5 megohms village; e, dynamic water level down to the pump suction inches: when d, electrical equipment and circuit irregularities; when f, pump noise or sudden large shock: g, protection switch trips frequently. 3, we should always continue to observe the instrument, check the electrical equipment test once every two weeks motor insulation resistance, the resistance value of not less than 0.5 megohms. 4, each irrigation period (2500 hours) to conduct a repair protection, replacement of damaged consumables. 5, pump lifting and handling: a disassembled cable, breaking away from the power supply; b ho with the installation tool by dismantling the outlet pipe, valve, pipe and pump with a clamp to lift manhole covers removed and clamped down with another pay plywood section pipes, so in turn, by section Removing the pulp hanging out outside well. (In the process of demolition hanging Cao, we found stuck not force lifting, should be down about activities against the security checkpoints crane unloading); c remove the protective strip, drainage network and cut from the lead and the three core cable or flat cable joints Cable: d Remove the coupling locking ring, tighten hereinafter set screws, split BU connection Screw in the motor, pump separator; e discharged water filling the motor: f Pump Removal: disassembly wrench, remove the water festival impact in the lower pump with a removable cartridge tapered sleeve, loose impeller, remove the impeller, conical sleeve, remove the diversion shell, so in turn emptied impellers, diversion case, the diversion shell, check valves and so on. g Motor Removal: successively remove the base, thrust bearings, thrust plate, the lower guide bearing connecting seat, thrown water heater, remove the rotor, remove the BU guide bearing, set up and so on. 6, pump assembly: Assembly before checking Cheongju wash all parts of rust, sludge, and butter with the surface to be painted rust screw connection of the water pump large lead oil to be coated. <1> motor assembly sequence: a stator assembly about the guide bearing assembly a rotor assembly of a thrust plate buckle 蟝 a mother left a thrust bearing assembly of a base to assemble a 3 bearing oil seal a connector assembly of a seat. Adjustment stud, so that the motor shaft extension in line with requirements. Then Shanghao transfer film, regulator spring and cover. <2> pump assembly: the shaft and inlet section with scheduled mounts, removable cartridge with the impeller, the tapered sleeve fixed to the shaft, and then loaded on diversion casing, impeller, ...... This in turn upstream Bahrain housing, check valve. Eight below the motor part of the pump assembly, first in the water festival and the contact between the upper guide bearing plane uniform, plus the same 3 to 3,5 mm spacer 3 to 4, and then evenly I: good stretch nuts, BU mounted a coupling, shaft, bolt and dagger good fixed 蟝 locking collar, with a removable wheel when Jane will taper sleeve fixed 'in the shaft, and then loaded on diversion casing, impeller ...... This in turn means After the diversion shell. Pump installed after the release reinforcement nut, remove the washer, then stretch evenly tighten the nut, then turn the pump from the coupling of the rotation must be uniform. <3> unit assembly, as described above. QJ series submersible deep well pump Ordering Information: 1. QJ series submersible deep well pump product name and model: 2. QJ series submersible deep well pump outlet aperture 3. QJ series submersible deep well pump pump head (m) 4. QJ series submersible deep well Traffic 5. QJ series submersible deep well pump motor power (KW) 6. QJ series submersible deep well pump rotational speed (r / min) 7. QJ series submersible deep well pump motor voltage (V) 8. QJ series submersible deep well pump suction Cheng (m) 9. QJ series submersible deep well pump enclosure so that for your correct selection.