1425 results about "Submersible pump" patented technology

The invention belongs to the technical field of intelligent control of electric submersible pumps, and discloses a ground control system and control method of an electric submersible pump. A sensor module of the system is used for collecting operation data of the electric submersible pump in real time; the intelligent calculation module is used for analyzing and calculating the collected real-time operation data of the electric submersible pump to obtain optimized control parameters; the control execution module is used for generating a corresponding instruction according to the optimized parameters and accurately adjusting the steering, rotating speed and stroke parameters of the servo motor; the real-time monitoring and feedback optimization module is used for monitoring the system state after execution of the control execution module in real time and judging whether system operation is abnormal or not according to a real-time monitoring result; and the alarm optimization adjustment module is used for dynamically optimizing the control strategy of the electric submersible pump based on the parameter abnormal condition fed back by the real-time monitoring module after the abnormal state of the system is detected. The control efficiency of the electric submersible pump is effectively improved, and the problem that in the prior art, a control method is low in efficiency is solved.

The invention belongs to the technical field of underwater operation, and relates to a maintenance device for a lower hinged support of a dock gate and a construction method thereof. The device comprises a waterproof cover box, a diving barge, a hoisting system and a drainage assembly, the waterproof cover box comprises a cover body and a channel well, openings are formed in the bottom and the top of the cover body, the bottom face of the cover body is in sealed compression joint with the surrounding structure of the lower hinged support to be maintained, the channel well is connected to the opening in the top of the cover body in a sealed mode, and the top face of the channel well is higher than the water surface. The diving barge is provided with a plurality of hydraulic supporting legs capable of ascending and descending so that the diving barge can be supported in the horizontal door pit. The hoisting system comprises a tower frame and an arm frame which are arranged on the diving barge, and one end of the arm frame is located above the cover body and connected with the cover body in a pressing mode; the drainage assembly comprises a submersible pump and a drainage pipe, the submersible pump is arranged in the cover body, one end of the drainage pipe is connected with the submersible pump, and the other end is led to the water surface through the channel well. According to the method, a stable dry operation environment can be rapidly constructed at the dock gate lower hinged support to be maintained, rapid maintenance is achieved, pollution to a sea area is avoided, and operation safety is improved.

The invention relates to the technical field of submersible pumps, and discloses a submersible digital pump and a digital control system, the digital control system comprises a data acquisition module, a calculation module, an identification module, a strategy module and a control module; wherein the data acquisition module is used for acquiring operation parameters and state parameters of the submersible digital pump; the calculation module is used for calculating the operation efficiency and the efficiency deviation value of the submersible digital pump; the identification module is used for identifying the load responsiveness and the structure collaboration of the efficiency deviation value and identifying the low-efficiency operation condition of the submersible digital pump; the strategy module is used for formulating an efficiency adjustment strategy; and the control module generates a rotating speed control instruction based on the efficiency adjustment strategy, and adjusts the operation efficiency of the submersible digital pump in the low-efficiency operation condition based on the rotating speed control instruction. According to the application, intelligent identification and self-adaptive regulation and control of the operation efficiency of the submersible digital pump are realized, and the operation stability of the submersible digital pump is improved.

The invention discloses an energy-saving and efficiency-improving submersible pump for an integrated pump gate. The energy-saving and efficiency-improving submersible pump comprises a gate body and a submersible pump body, the pump body part comprises an impeller, a rotating shaft and a pump shell, the inducer is arranged at the upstream end of the impeller, and the impeller comprises impeller blades and a hub; the device is characterized in that a step part is arranged on the peripheral surface of the lower end part of the hub, the inducer comprises inducing blades and an adjusting cylinder, the upper end of the adjusting cylinder is connected with the step part, the lower end of the adjusting cylinder is connected with an adjusting cap, a drainage cavity is formed among the adjusting cap, the adjusting cylinder and the lower end part of the hub, a first through hole is formed in the adjusting cap, and a second through hole is formed in the adjusting cylinder; third through holes are formed in the induction blades, and the third through holes penetrate to the blade tops of the induction blades. The suction performance of the submersible pump can be improved, the influence of boundary layers between the induction blades and impeller blades and secondary flow on liquid flowing is reduced, and therefore the hydraulic performance and efficiency of the submersible pump can be improved, and the good effects of energy saving and efficiency improving are achieved.

The anti-blocking submersible pump comprises a pump body, the pump body comprises a driving part, a pump cavity part and a liquid inlet part, the pump cavity part is located between the driving part and the liquid inlet part, the pump cavity part is provided with an impeller, the driving part is provided with a driving rod, the liquid inlet part is provided with a liquid inlet cylinder and a cutting cylinder, the liquid inlet cylinder is arranged on the outer wall of the cutting cylinder in a sleeving mode, and the cutting cylinder is provided with an impeller. The cutting cylinder abuts against the inner wall of the liquid inlet cylinder, the cutting cylinder is connected with the driving rod, the liquid inlet cylinder is provided with a liquid inlet hole, the cutting cylinder is provided with a cutting hole, and the cutting hole is used for cutting aquatic plants. The cutting barrel is arranged, when strip-shaped foreign matter such as aquatic plants penetrates through the liquid inlet hole and the cutting hole to enter the liquid inlet part, the hole wall of the cutting hole of the rotating cutting barrel and the hole wall of the liquid inlet hole have the cutting effect similar to shearing through scissors, and therefore the situation that the aquatic plants enter and wind the impeller is reduced, and the situation that the liquid inlet barrel is blocked is reduced; the working stability of the pump body is improved.

The utility model belongs to the technical field of submersible pump motors, and particularly relates to submersible pump motor press-fitting equipment which is used for press-fitting forming of a pump shell, a stator, a rotor and a rear cover and comprises a rack and a rotary table device which is installed on the rack, a plurality of material carrying seats are arranged on the rotary table device, and the rotary table device drives the material carrying seats to be switched to set stations; the material cleaning device is used for cleaning the interior of the pump shell; the material heating device is used for heating the pump shell; the material changing device is used for moving the heated pump shell to the material heating device; the first press-fitting device is mounted on the rack and used for obtaining the heated pump shell and pressing the pump shell and the stator; the material control device is installed on the machine frame, and the material control device turns over the pump shell so that the rotor and the rear cover can be installed; the second press-fitting device is arranged on the rack and used for press-fitting the rotor and the rear cover on the pump shell; and the discharging device is located on the side of the rack, and after the material control device conveys the pump shell assembled with the stator, the rotor and the rear cover out of the station, the discharging device conducts discharging.

The utility model discloses an automatic filtering and cleaning system for bathing wastewater, which comprises a filtering water tank, a filtering net and a wastewater tank, the filtering water tank is divided into a filtering area and a non-filtering area by the filtering net, a liquid level sensor A is arranged in the non-filtering area, the outer side of the non-filtering area is connected with a bathing wastewater conveying pipe and a blow-off pipe, the blow-off pipe is provided with a stop valve D, and the stop valve D is connected with the wastewater tank. A liquid level sensor B, a submersible pump A, a cleaning nozzle A and a cleaning nozzle B are fixed in the filtering area, the cleaning nozzle A is connected with a tap water supply point pipeline, and a stop valve A is mounted on the pipeline; the submersible pump A is in pipeline connection with the waste water tank, a stop valve B is arranged on the pipeline, the cleaning nozzle B is in pipeline connection with the stop valve B, and a stop valve C is arranged on the connecting pipeline; and the liquid level sensor A, the liquid level sensor B, the stop valve A, the stop valve B, the stop valve C and the stop valve D are respectively connected with a central controller of the system.

An electric submersible pump stage optimized for viscous fluid is provided. The stage can include a diffuser having a curved break water area. The stage can include an impeller having a cut back shroud and / or hub.

The invention discloses an anti-freezing device for a winter hydrological monitoring system in a severe cold area, and the anti-freezing device comprises water disturbance equipment which is provided with a water outlet located in water in a hydrological monitoring cylinder. And the water disturbance equipment continuously conveys water to water in the hydrological monitoring cylinder through the water outlet so as to disturb the water in the hydrological monitoring cylinder. According to the device, disturbance equipment, such as a submersible pump or a centrifugal pump, is integrated in a hydrological monitoring cylinder through an integrated frame; the disturbance equipment goes deep into a certain water level and then continuously disturbs a water body so as to achieve the anti-icing effect.

The invention relates to the technical field of building construction, and discloses a construction site water recycling system which comprises a control module, a water well, a sedimentation tank, a water tank, an increasing pump and a spraying pipe. The sedimentation tank at least comprises a first purification tank and a second purification tank, a filtering wall is arranged on the top side of a wall between the two tanks, and a drainage pipe is assembled on the bottom side of the second purification tank; the well is communicated with the first purifying pond through a first pipeline; a first submersible pump at one end of the first pipeline is arranged in the well; the second purifying pond is connected with the water tank through a second pipeline, a second submersible pump at one end of the second pipeline is arranged in the second purifying pond, and a first gate valve, a water meter and a filter are sequentially arranged on the pipeline; the booster pump is connected with the water tank through a third pipeline with a second gate valve and connected with the spraying pipe through a fourth pipeline with a third gate valve. And the control module is electrically connected with the water meter and each gate valve, so that full-flow intelligent cooperative control of water source extraction, purification, transmission and distribution and spraying is realized.

A submersible pumping system for producing two-phase fluids from a well includes an intake module between a production pump and a motor. The intake module includes a housing, a first stage chamber inside the housing, and a second stage chamber inside the first stage chamber. The second stage chamber is in fluid communication with the production pump. The intake module further includes a plurality of tangential fluid intake ports that extend from the wellbore through the housing into the first stage chamber. The plurality of tangential fluid intake ports are configured to induce a swirling motion of two-phase fluid in the first stage chamber that encourages separation of liquids and gases. The intake module also includes a plurality of gas discharge ports that extend from the wellbore to the first stage chamber, where the plurality of gas discharge ports are located above the plurality of tangential fluid intake.

The invention discloses an oil and gas shaft multiphase flow simulator MphaseSim modeling method and a PINN solving method, and relates to the technical field of oil and gas field exploitation, and the method comprises the following steps: pre-calibrating a modeling strategy, including calibrating gas-liquid two-phase flow, and calculating the average flow velocity according to the section occupied by the gas-liquid two-phase flow; mass transfer can occur between the calibrated gas and liquid phases, but the gas and liquid phases are always in a thermodynamic equilibrium state; in calibration steady-state analysis, the mass flow of any section of the shaft is equal, and the liquid holdup is calculated through a drift-assisted equation. According to the method, on the basis of a mass-momentum-energy coupling mathematical model, the SRK state equation and the drift flow model are combined, the phase change characteristics, momentum transfer and energy conversion rules of the gas phase and the liquid phase can be accurately represented, the model sealing performance is good, and the physical significance is clear; and the device can be stably applied to different types of oil and gas well scenes such as gas wells, deep oil wells and electric submersible pump wells, has no obvious numerical value divergence problem in long shaft flow simulation, and can effectively reflect the real production state of the shaft.

The invention discloses a method for optimizing key structure parameters of a deep well electric submersible pump based on performance simulation, and relates to the technical field of design optimization of electric submersible pumps, a three-dimensional geometric model of a deep well submersible centrifugal pump is built in advance, the three-dimensional geometric model comprises an impeller, a guide shell, a pump shaft, a pump shell, an upper connector, a lower connector and a full-flow-channel structure, and initial structure parameters are calibrated; and establishing a centrifugal pump simulation model based on a computational fluid dynamics technology, performing fluid domain extraction, grid division and grid independence verification on the three-dimensional geometric model, and setting fluid attributes, boundary conditions and a turbulence model. According to the method, a closed-loop iteration framework for simulation, optimization, evaluation and feedback is constructed by adopting a mode of coupling a computational fluid dynamics simulation technology and a genetic algorithm, the limitation of local parameter optimization in the prior art is broken through, systematic and collaborative optimization of key structure parameters of the submersible centrifugal pump is realized, and the method is suitable for large-scale popularization and application. And the efficiency of the optimization process and the final optimization effect are obviously improved.

The present invention relates to the technical field of oil-water separation, and particularly discloses an oil-water separation system, which comprises: a submersible pump configured to pump oil-containing sewage; an inlet of the solid-liquid separator is communicated with an outlet of the submersible pump; the oil-water separation equipment comprises a mother pipe communicated with an oil-water outlet of the solid-liquid separator, a plurality of oil-water separation units and a connecting pipe, and each oil-water separation unit comprises a liquid inlet pipe, a first stop valve mounted on the liquid inlet pipe, an oil-water separator, a liquid outlet pipe and a second stop valve mounted on the liquid outlet pipe; inlets of the oil-water separators are communicated with an outlet of the main pipe through liquid inlet pipes, water outlets of the oil-water separators are communicated with the liquid outlet pipes, the connecting pipes are used for communicating two adjacent oil-water separators, and third stop valves are mounted on the connecting pipes. According to the oil-water separation system, the oil-water separation paths of the multiple water separation units are controlled, so that the separation requirements of different scenes can be met.

The present invention relates to a method of starting a submersible pump used for transferring liquefied gas. The method includes starting a submersible pump (1A) disposed in a suction container (2A) of a pump apparatus (100A) to deliver liquefied gas to a suction container (2B) of a pump apparatus (100B) through a flow-path switching device (5A) in the suction container (2A), passing the liquefied gas through a flow-path switching device (5B) in the suction container (2B) while the liquefied gas bypasses a submersible pump (1B) disposed in the suction container (2B), and then starting the submersible pump (1B).

The invention relates to the technical field of in-situ leaching uranium mining, and provides an in-situ leaching uranium mine unit pre-oxidation circulating system and method. The in-situ leaching uranium mine unit pre-oxidation circulation system comprises a liquid extraction drilling hole; a plurality of liquid injection drill holes; the drainage hole is connected with the drainage hole through an ore bed seepage channel; the deep well submersible pump is arranged in the liquid extraction drill hole; the buffer device comprises a tank body, a plurality of communicating pipes arranged at the lower part of the tank body and a sampling nozzle arranged on the tank body; two ends of the lifting pipe are respectively connected with an outlet of the deep well submersible pump and the top of the buffer device; the plurality of liquid injection well inner pipes are respectively connected with the corresponding communicating pipes of the buffer device and the liquid injection drill holes; wherein the deep well submersible pump is used for conveying leaching liquid in the liquid pumping drill holes to the buffer device through the lifting pipe, the leaching liquid is distributed through the buffer device, then is injected into the corresponding liquid injection drill holes through the liquid injection well inner pipes and flows back to the liquid pumping drill holes through the ore bed seepage channel, and a pre-oxidation circulation loop is formed. Pre-oxidation circulation is completed in advance, and the leaching time of a mining area is shortened.

The utility model relates to a multifunctional movable cleaning platform for an interception net, which belongs to the technical field of interception net cleaning and comprises a ship body, a net bag cleaning system is arranged on the ship body and used for cleaning a net bag, a flat net cleaning system and four hydraulic winches are arranged on the ship body, and the net bag cleaning system is used for cleaning the net bag. The four hydraulic winches are distributed at the four corners of the ship body in a matrix mode, and mooring ropes on the hydraulic winches are connected with the anchoring points in a one-to-one correspondence mode. The flat net cleaning system comprises a mechanical arm and a submersible pump, the submersible pump is arranged at the tail end of the mechanical arm, and the discharging end of the submersible pump is connected with the net bag cleaning system through a pipeline. The front, back, left and right movement of the suction platform can be realized by synchronously controlling the four hydraulic winches to take up and pay off the mooring rope, the movement precision and flexibility of the ship body are improved, and the cleaning of the flat net is also realized through the flat net cleaning system.

The invention relates to the technical field of submersible pump testing, and discloses a permanent magnet variable frequency submersible pump testing method and system. The method comprises the following steps: acquiring an original response signal cluster of the submersible pump in multi-stage variable-speed operation by constructing an integrated test environment; decoupling and enhancing the signal cluster based on time sequence dependence, and separating out an independent hydraulic performance characteristic signal group and an independent electromagnetic vibration characteristic signal group; and inputting the characteristic signal group into a dynamic working condition simulator, and restoring an internal flow field pressure cloud picture and a rotor stress distribution picture of the submersible pump under the simulated working condition through an iterative approximation algorithm. The two are fused to deduce a potential failure mode and its evolution trajectory, and an enhanced test procedure is generated accordingly. According to the method, accurate separation of multi-physics field test signals and visualization of internal states are realized, and the accuracy of fault attribution and the advance of failure prediction are improved.

A system includes an induction motor configured to drive an electric submersible pump (ESP). The induction motor includes a one or more rotors disposed about a rotational axis, and a plurality of bearings disposed about the rotational axis. Each bearing of the plurality of bearings is disposed axially between a pair of rotors of the one or more rotors. The induction motor further includes one or more stators disposed about the one or more rotors.

The invention is suitable for the technical field of oil-submerged pump monitoring, and particularly relates to an oil-submerged pump bearing temperature field distribution monitoring method and equipment, and the method comprises the steps: obtaining the monitoring distribution data of an oil-submerged pump bearing in a test period; in the actual period, operation monitoring data of the oil-submerged pump motor are obtained; obtaining equivalent thermal parameter data generated between the motor heat source assembly and the bearing part according to the monitoring distribution data and the motor electrical parameters of the corresponding time nodes; extracting characteristic parameter data representing the dynamic change of the heat source power from the operation monitoring data; obtaining result data based on the characteristic parameter data and the equivalent thermal parameter data; and obtaining temperature field distribution data according to the result data in combination with the geometric parameters of the bearing and preset thermal field data. According to the oil-submerged pump bearing temperature field distribution monitoring method provided by the invention, the situation that the accuracy, integrity and stability of a temperature field distribution result are low due to the limitation of an underground environment can be solved.

The invention discloses an automatic cleaning coal conveying belt conveyor, which relates to the technical field of coal conveying equipment and comprises a belt conveyor body, an automatic cleaning structure and a water recycling structure. The belt conveyor body provides a coal conveying foundation support; the automatic cleaning structure carries a water scraping structure, a washing structure and an ash sweeping structure through a guide rod, slides along the guide rod to be matched with a belt to operate, progressive cleaning from floating ash removal, stubborn stain washing to water scraping is achieved, all the cleaning structures are matched with water receiving or material guiding components, and it is guaranteed that clean waste is collected in order; the water recycling structure achieves recycling, filtering and circulating supply of cleaning water through the water tank, the filter screen and the submersible pump, and water resources are saved. The cleaning effect is improved through multi-stage collaborative cleaning, belt abrasion is reduced by means of an elastic adaptive structure, the environmental protection property and economical efficiency are enhanced in combination with the water circulation design, and the device is suitable for efficient and automatic cleaning of various coal conveying belts.

Cast alloys comprising 20 to 35 wt. % nickel; 25% to 42.5 wt. % chromium; 1.5 to 2.5 wt. % carbon; 0.5 to 2.0 wt. % manganese; 0.25 to 2.0 wt. % silicon; 0 to 1.5 wt. % aluminum; 0 to 0.5 wt. % titanium, niobium, tantalum combined, 0 to 1 wt. % copper, other residual elements up to 0.5 wt. %, and iron to bring the total percentage to 100 wt. %, are described. The cast alloys can be used to form components for mixers, turbines and pumps, such as impellers, diffusers, and spacers, or for fracking operations as seats or flow diverters, as well as other oil and gas or energy industry components. In some applications, the cast alloys are custom made for downhole electro submersible pump applications.

Configurations for grippers designed for holding and moving armored power cables for downhole well operations are provided. The grippers are designed to ensure a certain amount of compression force can be exerted against the cable without damaging the armor strands, the internal electrical core including power conductors, insulation or the metallic shielding of the same. Improved installation speed and reliability for electrical submersible pumps may be realized through the system and methods disclosed herein. An armored cable matching coiled tubing injector head grippers are installed on the injector head chain and are compressed against the cable creating the necessary frictional force to safely convey the cable and the attached ESP in and out of the well. Another aspect is a set of rollers fitted to the cable guide attached to the injector head to safely guide the cable from and to the cable reel.

The invention relates to the technical field of submerged pumps, and discloses a magnetic drive submerged pump which comprises a pump shell, an impeller is installed in the pump shell and driven by a motor in a magnetic coupling mode, a filter flow cylinder is installed at the bottom of the pump shell, the bottom of the filter flow cylinder is of a closed structure, the filter flow cylinder and the impeller are coaxially arranged, and the filter flow cylinder and the pump shell are rotationally assembled. The impeller drives the filter flow cylinder to rotate synchronously when rotating, the device forms a basic guiding mechanism of'centrifugal force guiding and side water inlet anti-blocking 'depending on the special conical structure of the filter flow cylinder, the filter flow cylinder adopts the design that the bottom is closed and the side part is provided with a water inlet channel, and when the filter flow cylinder rotates along with the transmission main shaft, centrifugal force can directly act on a side water inlet area; and meanwhile, due to the conical shrinkage structural form, fluid in the cylinder naturally forms the upward flowing trend along the conical surface, and the problem that a dead water area is easily formed at the bottom of a traditional flat-bottom filter cylinder, and impurity vortex accumulation is caused is thoroughly solved.

The utility model relates to a novel clean rainwater recycling pool which comprises a sedimentation pool communicated with initial rainwater, a mud pump is arranged at the bottom of the sedimentation pool, and an outlet pipeline of the mud pump is communicated with the outside; the oil separation tank is separated from the sedimentation tank through a partition plate which is longitudinally arranged, a first electric valve and a submersible sewage pump are arranged at the bottom of the side wall of the oil separation tank, and an outlet pipeline of the submersible sewage pump is communicated with the outside; the clean water tank is a closed tank and communicated with the oil separation tank through a first electric valve, a submersible pump is arranged at the bottom of the clean water tank, and an outlet pipeline of the submersible pump is communicated with the outside. Sediment in initial rainwater can be settled, greasy dirt in the initial rainwater floats upwards to the surface layer, lower clear liquid in the rainwater can be discharged into the clear water pool, finally clean rainwater is stored, and the clean rainwater is prevented from being polluted by dust due to the closed design. The sedimentation tank, the oil separation tank and the clean water tank are of an integrated structure, the construction cost of the rainwater tank is saved, meanwhile, the structure is tighter, and the occupied space is small.

The utility model relates to the technical field of urban drainage, in particular to a modified drainage vehicle. The refitted flood drainage vehicle comprises a vehicle body, a closed box body is arranged on the rear portion of the vehicle body, a generator and a submersible pump are arranged in the box body, a box door capable of being opened or closed is arranged on the tail portion of the box body, a transfer case is arranged on a chassis of the vehicle body, and an output shaft of a gearbox of the vehicle body is connected with an input shaft of the transfer case through a shaft. One output shaft of the transfer case is connected with a rear axle of the vehicle body, the other output shaft of the transfer case is connected with a main shaft of the generator through a transmission mechanism, the generator is sequentially connected with a power supply and a controller through lines, and the controller is connected with the submersible pump. The generator set has the advantages that the structural design is simple and reasonable, and the problems that a traditional generator set for the portable flood drainage vehicle is used as a power supply, the driven submersible pump is limited, the working efficiency is low, and the passing flexibility is influenced by the weight increase of the whole vehicle are solved.

The utility model relates to the technical field of submersible pumps, and discloses a submersible pump convenient to transfer, which comprises a pump body and a butt joint pipe, the right side of the pump body is fixedly connected with an output pipe, the right side of the output pipe is fixedly connected with a flange plate I, and the left side of the butt joint pipe is fixedly connected with a flange plate II; two trapezoidal rings are slidably connected to the left side of the second flange plate, sealing rings are fixedly connected to the sides, close to each other, of the two trapezoidal rings, two sliding grooves are formed in each trapezoidal ring, sliding discs are slidably connected to the interiors of the multiple sliding grooves, springs are arranged in the multiple sliding grooves, and the sliding discs are connected to the interiors of the multiple sliding grooves. Two connecting rods are fixedly connected to the close sides of the multiple sliding discs. According to the utility model, the sealing ring is ensured to be tightly filled in the pipeline connection part, so that the sealing performance of the connection part is obviously improved, and the water leakage phenomenon of the submersible pump in the use process is effectively prevented. And normal operation of the submersible pump is ensured.

A submersible pump (10) suitable for pumping liquid that includes suspended solids such as sewage, includes a housing (12) with a motor (34) and a pump chamber (66). The motor rotates an impeller (72) within the pump chamber and a slicer (92) that operates to slice solids before they enter the pump chamber into smaller pieces. The impeller vanes (130) have a vane height (H) that is at least 30% of the impeller diameter (D). The impeller has a continuous annular donut shape open area (144) that maintains solids suspended and flowing with the liquid into and out of the pump chamber.

The utility model discloses a fixing device for submersible pump shell machining, and relates to the technical field of submersible pump machining assistive devices, the fixing device comprises a base, a pair of fixing plates is arranged on the upper surface of the base, a motor is arranged on one of the fixing plates, a bidirectional threaded rod is rotatably arranged on the pair of fixing plates, and the bidirectional threaded rod is connected with the motor. An output shaft of the motor is connected with the two-way threaded rod, a pair of movable plates are arranged on the base and located between the pair of fixed plates in a sliding mode, the pair of movable plates are in threaded connection with the two-way threads of the two-way threaded rod, and each movable plate is provided with a through groove and a limiting groove; after one position of the submersible pump shell is machined, fixing of the rotating plate by the limiting assembly can be relieved, personnel adjust the circumferential position of the submersible pump shell and then fix the submersible pump shell, the submersible pump shell does not need to be repeatedly disassembled and assembled, personnel operation is convenient and fast, and machining efficiency is improved.

1. Name of the designed product: submersible pump head (three-phase electricity). 2. Use of the designed product: the designed product is used for submersible pump. 3. Design points of the designed product: in shape. 4. Picture or photo that best indicates the design points: perspective view.