Submersible pump structure, Wells with submersible pump structure, working principle and structure

With other type centrifugal pump, submersible pump is composed of main components of the main shaft, impeller, pump shell, bearings, bushings, mesh and other auxiliary parts formed the submersible pump products. Spindle submersible pump is one of the major components, which is responsible for connecting the motor and pump impeller, similar to the human spine, supporting the whole water pump products; The impeller is the heart of the water pump body, its movement for the intended use of the water pump, generate centrifugal force, make the medium can be transported from the pump body; And the pump shell is the shell of the pump body, no pump casing can only be produced by the rotation of the impeller of the centrifugal force to medium around, can't effective medium from pump. Such as: Wells with submersible pump is a pump body, Yang pipes, pumps, submersible motor ( Including cable) And starting protection device, etc. Working parts of the pump body is submersible pump, it is composed of multiple components, specific structure is as follows:

other auxiliary parts for submersible pump is indispensable, coupling part is located in the pump shaft end, used in connection with motor shaft, motor drives the pump work, coupling is very important, if the damage fracture can cause damage to the pump body and motor, the quality is very important. Mesh in the VP submersible pump inlet, main effect is to prevent large granular solid impurities into the pump body pump card die damage. Part of the submersible pump and water hammer device, is located in the pump outlet to prevent the fall after the pump stop medium pump body damage.

deep Wells with submersible pump working principle: open before the pump, the suction pipe and pump must be filled with liquid. Open pump, submersible pump high-speed rotating impeller, driven by a submersible motor to form the impeller inlet vacuum, suction, the water of the liquid with a blade rotate, the water in the impeller blades produced under the action of centrifugal force, under the action of centrifugal force, fly away from the impeller to injection, injection of the liquid in the pump shell gradually spread of indoor speed slow, pressure increase gradually, and then from the pump discharge, the discharge pipe. At this point, in the center of the blade due to liquid was dumped into the surrounding formation is no air and no liquid vacuum low pressure area, fluid in the pool liquid under the action of atmospheric pressure on surface of the pool, the suction pipe into the pump, the liquid is continuously from the liquid pool was sucking up and continuously from the discharge pipe flow. Water through the diversion shell has certain energy, into the next level of the impeller, with the increase of pump series, constantly increasing pressure, at last, by Yang water pipe and pump block into the ground of the system. Wells with submersible pump structure characteristics: 1, the QJ series Wells with submersible pumps, consists of two most, dive three-phase asynchronous motor and pump. Motor pump with its upper body straight, the motor shaft top is equipped with solid shaft sealing devices, can effectively avoid the motor in the cooling liquid and the pumping medium of communication between, ensure the pump running over a long time to secure. 2, submersible pump is single-suction multi-stage vertical centrifugal pump; Submersible motor for filling water wet, vertical Wells with diving asynchronous motor. Motor and pump through the claw type or ChanJian drum coupling directly; Equipped with specifications of the three core cable; Starting equipment for air switch with different levels of capacity and from accidentally decompression starter, water pipe for the different diameter of steel pipe is made, using flange connection, young electric pump is controlled by a gate. 3, motor winding for polyethylene water resistant nylon sheathed electromagnetic wire. Motor cavity filled with clean water. 4, electrical guide bearing selection smooth water bearing. Lower part of the motor can not accept the pump up and down the axial force of the thrust bearing, high lift water pump of the thrust bearing choose nickel copper fan block, and it is import for the grinding of Loeb, skateboard, accept and axial force of pump. 5, young cheng chien pump additional axial force in the center of the pump and motor bearing, head can be raised to 900 m. 6, submersible pump per level diversion shell is equipped with a rubber bearing; Impeller with conical sleeve is fixed on the pump shaft; Got behind the diversion shell adopts screw or bolt. 7, young cheng chien upper pump equipped with check valve, avoid stopping water unit damage. 8, upper part is equipped with submersible motor shaft labyrinth sand control and two reverse assembly of skeleton oil seal, prevent sand flow into the machine. 9, submersible motor adopts the water lubricated bearing, lower part is equipped with rubber membrane voltage regulator, pressure regulating spring, surge of regulatory changes caused by temperature stress; Motor winding used in PVC insulated nylon sheathed consumer durables hydropower magnetic wire, cable connection to the QJ type cable joint process, scrape off the joints of the paint layer, respectively connected and the welding is firm, use raw rubber layer. With a waterproof adhesive tape around 2 ~ 3 layers, outer 2 ~ 3 layers of water proof tape on bread or water package adhesive layer of rubber belt ( Bicycle with) To prevent water penetration. 10, motor airtight, adopting the precision check bolt, cable export add rubber gasket to seal. 11, motor top there is a water injection hole, there is a vent hole, lower a plug-hole. 12, the lower part of motor is equipped with upper and lower thrust bearing, thrust bearing on the groove used for cooling, and it is stainless steel thrust disc for grinding, along with the water pump and axial force.

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