QW submersible non-clog sewage pump

QW submersible sewage pump without clogging submersible pump works there are several, the motor in the line packages have oil immersion and water influx is dry in style as well as make submersible pumps submersible pump must look at the manual before use, can not be wrong, long-term need, must have to get the impeller rotation before use, or because of long-term without death card burning package. Before pump suction pipe and the pump must be filled with liquid. After the pump, the high-speed rotation of the impeller, where the blades rotate together with the liquid, under the action of centrifugal force, left the impeller emitted outward, gradually decreased in the liquid exiting the pump housing interior diffusion speed, gradually increase the pressure, and then from the pump outlet exhaust pipe outflow. In this case, at the center of the blade due to the surrounding liquid thrown formed neither vacuum nor liquid air low pressure area, the pool of liquid fluid at the pool surface atmospheric effect, through the suction pipe into the pump, the liquid is so continuous continuously from the liquid bath is drawn up and a continuous flow from the exhaust pipe. QW submersible sewage pump without clogging the basic parameters including flow, head, pump speed, and the supporting power, rated current, efficiency, and so the outlet pipe diameter. Submersible pump sets from the control cabinet, diving cable, Yang pipe, submersible pumps and submersible motor. Submersible pump main purpose and scope includes mine rescue, building construction drainage, agricultural water irrigation, industrial water cycle, urban and rural drinking water supply, and even disaster relief and so on. QW submersible sewage pump without clogging the major categories on the use of the media, the submersible pump can be divided into water submersible pumps, sewage submersible pumps, water submersible pumps (corrosive) three. Installation of a submersible pump, vertical vertical use, such as in general the wells; 2, inclined to use, such as mine have a slope roadway; 3, horizontal use, such as use in the pool. QW submersible sewage pump without clogging the main difference between the pump as a general machinery, wide range of uses. With the evolution of the pump, the emergence of a variety of pumps, submersible pumps submersible pump whose name varied, all kinds of pumps books of these pumps is called and classification are different. Thus causing trouble to the product application and promotion. In general, according to the principle of water pumps can be divided into: a pump impeller, such as: centrifugal, mixed flow pumps, axial flow, etc., vortex pump; Second, positive displacement pumps such as: piston pump, gear pumps, screw pumps vane pump; three other types such as: jet pumps, water hammer pumps. Wherein the vane pump in accordance with the structure (position axis) can be divided into: horizontal and vertical; according to the working position can be divided into: submersible pumps and ground pumps. Slurry pump, mud, sand (sand) pump and flushing pump submersible pumps are in accordance with the naming of functional use, are all non-clogging impurities pump QW submersible sewage pump mechanism 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 pump; submersible motor is sealed water-filled wet, vertical phase squirrel cage induction motor, motor and pump cylinder by the jaw or a single bond directly coupling; equipped with different specifications Three core cable; starting equipment for different capacity levels of air switch and auto-pneumatic pressure control and water pipes made of steel pipes of different diameters, flange coupling, high-lift pump uses valve control. Submersible motor shaft unit is equipped with a labyrinth of sand and two return to the oil seal assembly, preventing the flow of sand into the motor. 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 insulated, water-resistant nylon sleeve households wire, cable coupling manner technology of cable connector, scrape the paint off the joint insulation were connected, welding firm, with a layer of raw rubber around. Then layer waterproof adhesive tape wrapped around the 2-3, 2-3 layers of waterproof adhesive tape or water on the outside wrapped in a layer of rubber Inclusion (bicycle tire inside) to prevent water seepage. Each stage submersible pump is equipped with a rubber diversion shell bearing; impeller cover is fixed to the shaft with the cone-shaped; diversion shell with screw or bolt into one. Praise Submersible Pump top with a check valve to prevent water hammer downtime caused damage to the unit. Motor closed, mouth bolt precision using only cable outlet add cushion seal. Motor top with a water hole, there is a bleed hole, the lower part has a drainage hole. The lower part of the upper and lower motor is equipped with thrust bearing thrust bearing grooves for cooling, and its stainless steel thrust plate mill, subjected to axial forces up and down the pump. QW submersible sewage pump without clogging machinery using submersible pumps in use before the selection is very important and should be based on the actual situation and working time water pump water pumps and other requirements to the selected models. First, choose the lift is greater than the water intake and outlet gap; followed by the pump flow to be able to meet the requirements of drainage and irrigation. (A) use of the environment in claim 1, there is a safe and reliable power supply. 2, with the pool water outlet pipe mouth drop to less than lift. 3, to choose a relatively clean water. (B) start 1,11 kW submersible pump allows direct start. 13 kilowatts or more submersible pumps should be fitted with pressure relief starters. To protect the safe operation of the submersible pump. 2. To avoid submersible pump rotor instant channeling and reduce the starting load. Submersible pumps should start the trip off the outlet valve to 3/4. (1/4 gap left. In order to deflate) to be started after the water slowly opened. To pump operating point control in place. 3, after completion of the start operation starts. We should strengthen the monitoring and observation of water level changes. Ensure submersible pumps running in the operating range. Be submersible pump can be put into formal operation after running smoothly. 4, submersible pumps first put into operation after five hours. Stop quickly measure the thermal insulation resistance. Its value is not less than 0.5MΩ. To continue using. (Iii) run, and submersible pumps should work in design point. In this case the axial force is moderate. Pump efficiency is highest. The most economical and reliable. 2, submersible pumps run every eight hours to fully check again. Whether the change of each instrument. Whether the circuit nodes fever. Whether the sound is normal. The normal operating current is greater than the motor nameplate rating. Note that one of the following circumstances, should immediately stop the pump. 1) Pump operating current suddenly up motor rated current. 2) The amount of water is not normal, intermittent water. Sediment concentration increased. 3) Motor insulation resistance of less than 0.5 megohms. 4) The unit has a significant noise and vibration intensified. 5) lack of mains voltage. Less than 5% of the rated voltage. 6) Blown fuses a phase. 7) water pipe damage. (D) Stop the pump submersible pumps before stopping. In order to prevent back flow of water. Cut off the power at the same time to close the valve. Restart interval 20 minutes or more. (E) Caution 1, the power must be grounded reliably, install leakage protection. 2, try not to bend the outlet pipe, to detect and repair the ruptured pipes to reduce power losses. 3, for more debris to add water when the filter pump. 4, before the start of the correction power of positive and negative, so as not to reverse the pump, no water. 5, the use of unusual circumstances, promptly cut off the power, the circumstances identified in order to continue the work of restoration. QW submersible sewage pump without clogging Installation deep well submersible pump installation 1. Acceptance: the user to pick up the logistics company to carefully view the cable sheath for damage inspection. Pump without fracture. 2. Handling: Handling car to be careful to avoid damaging the unit of concentricity or misfortune to scratch the cable insulation. Step 3. Check the entire unit to go down before:. A filter open with a pry bar struck couplings should be flexible rotation, B will pump upright fill with water, connect cable connectors, joints soaked with basin, shake test joint resistance to ground (single finger joints for water insulation resistance) value of not less than 500 megohms. C. The outlet pumps stand up with a suitable container to pump water and detergent, while a little jog at the motor start button steering pump carefully observed, time can not be more than two seconds, with continued good mark. Step 4. Pump split transport field assembly: A Before installing the motor vertical stand up, hit the open stomata and water holes, be sure to pay attention to the two water blocks were open, fill with water and drain the water blocking blocking tight. see if the motor has water leakage, if any leaking do not go down, probably due to the transport process bump actions, contact the dealer or manufacturer of a negotiated settlement, until no leakage so far (observed for 10 to 15 minutes). Then shake test motor insulation resistance, its value is not less than 50 megohms. B. bandaging cable connectors, pack a good try after rotation of the motor, the motor is turned in the direction of the arrow mark on the pump are the same, and with continued good mark. Seven total amount of channeling water pump impeller pump split A. 5. Check on the pump casing removed to expose the top of the impeller, B. Rotate the impeller by hand to see if flexible C. Pull the impeller shaft along Observation ( General QJ pump 4-6 mm) D. installing the coupling and motor co-fitted to the motor shaft end with one pump shaft head are not allowed to close the gap. E. Look up and down the channeling impeller clearance should flee in the middle of the total amount (tolerance ± 0.5 mm). When F. deviation is greater than 0.5 mm adjustment shims to adjust the neutral position of rotation of the impeller by hand should be flexible. G. then drill hole coupling the top wire, tighten the top wire installed on the shell. H. struck again with a pry bar coupling one week should be flexible rotation qualified for the co-packed. Then install the filter cartridge and retaining groove. 6. Deep submersible pumps go down: go down with a rope hanging before a unit in the same length logs or steel (diameter equal to the maximum outer diameter of the unit) test whether the well pipe integrity. So as not to get stuck when you go down the unit. 7. lashing cable: cable with insulation tie binding on Yang pipe, do not use metal wire. 8. Control and starting units: control equipment selection. Motor Power × 1.2-1.4 times = control cabinet power. Control cabinet have phase, overload, short circuit overcurrent protection. Go down after the start of the test machine installation, start-up time according to the difference between the motor power, lies in between 10-25 seconds, high power motor start-up time should be relatively long to see if the current overload, phase current is balanced, make a record. And feedback the manufacturer for warranty basis. 9. overload, overcurrent, phase, short circuit, sensitivity to debug: This step is very important, please installer serious debugging. A. overload overcurrent Commissioning: current thermal relay adjustment knob slowly rotates in the direction of the current is less than the actual work, each rotation a little scale, interval 2-5 minutes, until the thermal relay unit to stop working so far. Then you can scale a little reverse rotation. B. commissioning phase sensitivity: the unit is started again, and one by one disconnect knife switch fuse units, the unit in two-phase state. Whether the observed thermal relay can control power off within 5 seconds. C. Short circuit test: This step is often to rely on the power supply system to protect air switch. Generally do not make field testing (more dangerous) requires power supply system must be equipped with air switch (air switch models DW10 type of choice, second choice DZ type). Shanghai Submersible Pump Co., Ltd. is specialized in sewage submersible pumps, sewage pumps, deep well pump, water mixers, submersible pumps and other piping products, no negative pressure regulator, pressurized water supply equipment, sewage lifting unit, booster pumps, vertical multistage pump manufacturing and research of production-oriented enterprises. Products focus on practical, innovative, environmentally friendly, economical and efficient. Check and ready to go down deep submersible pump inspection and preparation prior to 1, should be able to lift more than three meters high, can withstand the full weight of the unit lifting equipment (preferably with a crane), and tripod, pallets, wrenches, screwdrivers , pliers, 500V megger, insulation rubber adhesive tape and other installation equipment. 2, the installation size and installation size check whether the pump motor, the motor power is appropriate. 3. Check the power supply voltage, frequency, it is consistent with the motor nameplate, control cabinet parameters used is compatible with the motor. 4. Check the power cable for damage, its specification is reasonable, the cable intrusion of water six hours, with 500V insulation resistance meter measuring its insulation resistance shall be not less than 500 megohms. (Single finger joints for water insulation resistance) leads docking docking cable and power cable 1. Remove the cable outer sheath and the main insulating layer, exposing the copper 35-40mm, will be near the core part of the rubber cone Xiu shape, the oxide layer on the core polished clean, and with alcohol (preferably hydrochloric acid) Clean core and an insulating layer to be bandaged, jacket layer and allowed to dry naturally. 2, connector 1) Power cable 2) PVC adhesive tape 3) self-adhesive butyl tape 4) φ1mm copper 5) Solder 6) lead cable 3, ready to 500W electric iron, rosin, solder, lmm bare copper wire and insulating tape. 4, even with bare copper wire truss cable core, heated electric iron, tin infiltration, penetration requirements, seepage uniform. Smooth with a file repair welding section (no burrs and sharp hook), and again with alcohol to clean bandage to be part, dry. 5, the first half with a self-adhesive butyl tape laminated package three, and gradually extended to the outer wire core. Wrap the tape must be stretched to 200% when the outer layer of PVC adhesive tape and then three and a half wide and pack, gradually extending out to ensure the bandaging portion shorter than 200mm. 6, three-core cable connectors should be staggered three joint position a certain distance in order to prevent short circuits. 7, cable outlet for the wiring method when dual messenger 1) Cable then finished first after the shake test cable to the motor (without adding water), the insulation resistance, its value is not less than 150 megohms, 2) the motor is filled with water again shake test motor winding insulation resistance should be not less than 40 megohms, 3) Power to test the steering (no more than 2 seconds). With continued good position mark 4) began to go down: at the same time continue to go down the shake test the insulation resistance of observing the changes in the well wall to prevent cable insulation break, if we find the insulation rapid decline to 0.5 megohms the following should be set put up detection reasons. If there is no accident, it can go down to complete by step Recall boot test run.