CN113217404A

CN113217404A - High-efficient type canned motor pump of control module installation of being convenient for

Info

Publication number: CN113217404A
Application number: CN202110574227.7A
Authority: CN
Inventors: 林发明; 朱景撑
Original assignee: China Dafu Pump Industry Co ltd
Current assignee: China Dafu Pump Industry Co ltd
Priority date: 2021-05-25
Filing date: 2021-05-25
Publication date: 2021-08-06
Anticipated expiration: 2041-05-25
Also published as: CN113217404B

Abstract

The invention relates to the technical field of canned motor pumps, in particular to a high-efficiency canned motor pump with a control module convenient to install, which comprises a canned motor pump, wherein a return pipe for liquid backflow is arranged on the canned motor pump; the shielding electric pump is provided with a protection structure for protecting the return pipe; be equipped with the flowing back structure that is used for the flowing back on the ring flange, the structural fixed knot who is used for the connecting tube flange that is equipped with of flowing back constructs, the structural first limit structure that is used for carrying on spacingly to fixed knot that is equipped with of flowing back has improved the stability of back flow greatly, makes control assembly's maintenance more convenient, makes the connection of flange more fast and stable simultaneously, has avoided dismantling the flange under the condition that there is water in the inside of canned motor pump.

Description

High-efficient type canned motor pump of control module installation of being convenient for

Technical Field

The invention relates to the technical field of canned motor pumps, in particular to a high-efficiency canned motor pump with a control module convenient to install.

Background

The shield pump is a non-leakage pump which is formed by integrating a shield motor and a pump, and mainly comprises a pump body, an impeller, a stator, a rotor, a front bearing, a rear bearing, a thrust disc and other parts, wherein the stator and the rotor are respectively isolated by a non-magnetic corrosion-resistant thin-wall sleeve, and the rotor is supported by the front bearing and the rear bearing and is immersed in a conveying medium, so that any type of dynamic seal is not needed to prevent the outward leakage of the conveyed medium; meanwhile, the device is suitable for high-pressure, high-melting-point and high-low-temperature media, and a control assembly is usually arranged in the canned motor pump to control the normal work of the canned motor pump and detect the running condition of the canned motor pump.

However, the one end of the back flow of traditional canned motor pump is fixed in the one end in outlet, the other end that canned motor pump was located to one end in addition is used for making the liquid backward flow, make liquid through the rotor, make the rotor support by front and back bearing and soak in the transport medium, do not set up protective assembly to the back flow, in the handling, perhaps unexpected touching all influences the back flow easily and causes deformation damage, the security is low, the control assembly most directly sets up in the cavity that holds of canned motor pump's tip simultaneously, the installation is dismantled convenient and fast inadequately, and the inlet outlet adopts flange joint mostly, adopt bolted connection between the ring flange, complex operation, and easy smooth silk, and also can dismantle the ring flange when canned motor pump has liquid unusually inside, cause liquid to leak easily, the security is handed over at the end.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides the high-efficiency canned motor pump with the control module convenient to install.

The technical scheme adopted by the invention for solving the technical problems is as follows: a high-efficiency canned motor pump with a control module convenient to install comprises a canned motor pump, wherein a return pipe for liquid backflow is arranged on the canned motor pump, two flange plates are arranged at the end part of the canned motor pump, an installation structure is arranged on the canned motor pump, and the installation structure is limited through a second limiting structure on the canned motor pump; the shielding electric pump is provided with a protection structure for protecting the return pipe; the flange plate is provided with a liquid drainage structure for draining liquid, the liquid drainage structure is provided with a fixing structure for connecting a pipeline flange, and the liquid drainage structure is provided with a first limiting structure for limiting the fixing structure.

Specifically, protective structure includes the slide rail, install the slide rail on the canned motor pump, be equipped with the slider on the slide rail, be equipped with the gliding lead screw of screw drive slider along the slide rail on the slide rail, rotate between lead screw and the slide rail and be connected, the tip of slider is equipped with the protecting crust, the inside of protecting crust is equipped with the holding tank that is used for accomodating the back flow.

Specifically, both ends of the protective shell are provided with reinforcing rods, and the reinforcing rods are connected with the sliding rails in a sliding mode.

Specifically, the mounting structure comprises a sliding frame, the shielding electric pump is provided with the sliding frame in sliding connection, the sliding frame is provided with a rotating shaft in rotating connection, the rotating shaft is connected with a connecting frame, and the connecting frame is provided with a control module.

Specifically, the canned motor pump is provided with a slide rod in sliding connection, the slide rod is fixed on the slide frame, and the canned motor pump is provided with a second return spring for returning the slide rod.

Specifically, the second limiting structure comprises a third return spring, the canned motor pump is provided with the third return spring for abutting against a second clamping block, the second clamping block is in sliding connection with the canned motor pump, the cross section of the second clamping block is in a T shape, the end part of the second clamping block is a non-cylindrical polygon, and the second clamping block is clamped with the rotating shaft and the sliding frame thereof after sliding and used for limiting the rotating shaft and the sliding frame thereof.

Specifically, the drainage structure comprises a connecting sleeve, the connecting sleeve is connected to the flange plate through a bolt, a cover plate is arranged on the connecting sleeve, a drainage pipe is arranged on the connecting sleeve, a storage groove with a trapezoid structure is arranged on the connecting sleeve, and the drainage pipe is communicated with the storage groove.

Specifically, the inside circumference array of adapter sleeve is equipped with a plurality of locating levers, the length of locating lever is less than actual mounting flange's thickness.

Specifically, fixed knot constructs including the scroll bar, be equipped with the scroll bar that rotates the connection on the adapter sleeve, mesh between scroll bar and the turbine, rotate between turbine and the adapter sleeve and be connected, be equipped with the drive circle on the turbine, be equipped with the drive block on the drive circle, be equipped with the gyro wheel of rotating the connection on the drive block, roll connection between the drive groove on gyro wheel and the stopper, the drive groove slope sets up, the cross-section of the tip of stopper is trapezoidal.

Specifically, the first limiting structure comprises a piston, the canned motor pump is provided with the piston in a sliding mode, the end portion of the piston extends to the accommodating groove, the piston is driven to slide according to the accumulated liquid in the connecting sleeve, a first clamping block in sliding connection is arranged in the canned motor pump, a flow guide groove is formed between the first clamping block and the piston, a first return spring is arranged between the first clamping block and the canned motor pump, and the first clamping block can be clamped with a hole in the turbine.

The invention has the beneficial effects that:

(1) the efficient canned motor pump with the control module convenient to install is provided with a protection structure for protecting the return pipe; and then be convenient for carry canned motor pump or install the back right the back flow protects, the effectual back flow damage of having avoided the back flow receives the pressure, and then has improved stability greatly, promptly: when needs are right when the back flow protects, rotate the lead screw, lead screw thread drive the slider slides on the slide rail, makes the slider drive the protecting crust and removes, makes the protecting crust drive the anchor strut and removes, slides between anchor strut and the slide rail, and the setting up of anchor strut makes the supporting effect to the protecting crust better, makes compressive capacity stronger, the protecting crust makes the back flow accomodate in the inside of holding tank after removing, and then makes the stability of back flow is better, effectually prevents that the back flow from striking deformation damage, and then has improved stability greatly.

(2) The high-efficiency canned motor pump with the control module convenient to install is provided with the installation structure, the installation structure is limited through the second limiting structure on the canned motor pump, the installation structure is driven to slide out when the control module is maintained, the angle of the control module can be adjusted, and the maintenance of the control module is more convenient and faster, namely: when the control module needs to be overhauled and maintained, the second fixture block is pushed, the third reset spring which is in sliding conflict with the shielding electric pump is compressed, the second fixture block is separated from the rotating shaft and the sliding frame, the second fixture block is not limited to the rotating shaft and the sliding frame, the second reset spring is extended to conflict with the sliding rod, the sliding rod drives the sliding frame sliding-out shielding electric pump, the connecting frame sliding-out shielding electric pump is made, then the connecting frame can be rotated, the rotating shaft and the sliding frame are driven by the connecting frame, the angle of the connecting frame can be adjusted conveniently after sliding out, and the control module is more convenient and rapid to overhaul and maintain.

(3) The high-efficiency canned motor pump with the control module convenient to install is characterized in that a liquid discharge structure for discharging liquid is arranged on the flange plate, a fixing structure for connecting a pipeline flange is arranged on the liquid discharge structure, a first limiting structure for limiting the fixing structure is arranged on the liquid discharge structure, accumulated liquid is discharged through the liquid discharge structure, liquid is effectively prevented from leaking when the flange is disassembled, the flange is quickly and fixedly installed through the fixing structure, the installing and disassembling efficiency and the quality of the flange are greatly improved, meanwhile, when the liquid in the liquid discharge structure is not completely discharged, the weight of the liquid drives the first limiting structure to limit the fixing structure, misoperation is effectively prevented, and safety is greatly improved, namely: firstly, a connecting sleeve is fixed on a flange plate through a bolt to enable a liquid discharge pipe to be at the lowest position, then a hole of a flange of a pipeline is aligned to a positioning rod, the positioning rod is arranged to further facilitate positioning of the flange, so that installation is quicker, then a worm is rotated, the worm is driven by the worm to rotate around the connecting sleeve through threads, the worm rotates to drive a transmission ring to rotate, the transmission ring drives a driving block to move, a roller at the end part of the driving block rolls in a driving groove, the driving groove is obliquely arranged to enable a driving limiting block to slide towards the center of a circle in the rolling process of the roller, the end part of the limiting block is trapezoidal, so that the flange is quickly pushed to abut against the connecting sleeve, so that quick installation is facilitated, when liquid exists in the connecting sleeve, the liquid is gathered in the accommodating groove to push a piston to slide, a diversion groove is arranged between the piston and a first clamping block, and then gas pushes the first clamping block to be clamped with the hole in the worm, first reset spring extension, and then effectively prevent dismantle the flange when the inside storage of adapter sleeve has liquid and cause liquid to leak, and then improved the security greatly.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic structural diagram illustrating an overall structure of a preferred embodiment of a high-efficiency canned motor pump with a control module easy to install according to the present invention;

FIG. 2 is a schematic structural view of the protective structure shown in FIG. 1;

FIG. 3 is an enlarged view of the part A shown in FIG. 1;

FIG. 4 is a schematic structural view of the liquid discharge structure shown in FIG. 1;

FIG. 5 is an enlarged view of the structure of the portion B shown in FIG. 4;

FIG. 6 is a schematic view of the connection structure between the liquid discharge structure and the fixing structure shown in FIG. 5;

FIG. 7 is an enlarged view of the structure of the portion C shown in FIG. 6;

FIG. 8 is an enlarged view of the structure of the portion D shown in FIG. 6;

FIG. 9 is a schematic diagram of the construction of the canned motor pump of FIG. 1;

FIG. 10 is an enlarged view of the structure of the section E shown in FIG. 9;

FIG. 11 is a block diagram illustrating the control module of the high efficiency canned motor pump with a conveniently installed control module according to the present invention;

FIG. 12 is a circuit diagram of the MUC control circuit in the control module of FIG. 9;

FIG. 13 is a diagram of a motor drive circuit and current sampling circuit in the control module of FIG. 9;

FIG. 14 is a power circuit diagram of the control module of FIG. 9;

FIG. 15 is a diagram of a display interface circuit and a current collection and analysis circuit in the control module of FIG. 9;

FIG. 16 is a diagram of an MCU debug interface in the control module of FIG. 9;

FIG. 17 is a circuit diagram of a voltage detection circuit in the control module of FIG. 9;

FIG. 18 is a circuit diagram of a current sensing circuit in the control module of FIG. 9;

FIG. 19 is a memory circuit diagram of the control module of FIG. 9.

In the figure: 1. the shielding electric pump comprises a shielding electric pump body, 2, a return pipe, 3, a flange plate, 4, a protective structure, 41, a protective shell, 42, a reinforcing rod, 43, a screw rod, 44, a sliding rail, 45, an accommodating groove, 46, a sliding block, 5, a liquid discharging structure, 51, a connecting sleeve, 52, a liquid discharging pipe, 53, a cover plate, 54, a positioning rod, 55, an accommodating groove, 6, a fixing structure, 61, a turbine, 62, a transmission ring, 63, a scroll rod, 64, a driving groove, 65, a driving block, 66, a limiting block, 67, a roller, 7, a first limiting structure, 71, a piston, 72, a diversion groove, 73, a first return spring, 74, a first clamping block, 8, an installation structure, 81, a control module, 82, a connecting frame, 83, a rotating shaft, 84, a sliding rod, 85, a sliding frame, 86, a second return spring, 9, a second limiting structure, 91, a second clamping block, 92 and a third.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 19, the high-efficiency canned motor pump with a control module convenient to mount according to the present invention includes a canned motor pump 1, a backflow pipe 2 for backflow of liquid is disposed on the canned motor pump 1, and two flanges 3 are disposed at end portions of the canned motor pump 1, and is characterized in that a mounting structure 8 is disposed on the canned motor pump 1, and the mounting structure 8 is limited by a second limiting structure 9 disposed on the canned motor pump 1; the shielding electric pump 1 is provided with a protection structure 4 for protecting the return pipe 2; be equipped with flowing back structure 5 that is used for the flowing back on the ring flange 3, be equipped with the fixed knot who is used for the connecting tube flange on the flowing back structure 5 and construct 6, be equipped with on the flowing back structure 5 and be used for carrying on spacing first limit structure 7 to fixed knot constructs 6.

Specifically, the protective structure 4 includes a slide rail 44, the canned motor pump 1 is provided with the slide rail 44, the slide rail 44 is provided with a slide block 46, the slide rail 44 is provided with a screw rod 43 for driving the slide block 46 to slide along the slide rail 44, the screw rod 43 is rotatably connected with the slide rail 44, an end of the slide block 46 is provided with a protective shell 41, an accommodating groove 45 for accommodating the return pipe 2 is arranged inside the protective shell 41, two ends of the protective shell 41 are both provided with reinforcing rods 42, and the reinforcing rods 42 are slidably connected with the slide rail 44; the shielding electric pump 1 is provided with a protection structure 4 for protecting the return pipe 2; and then be convenient for carry canned motor pump 1 or install the back right back flow 2 protects, the effectual back flow 2 damaged by the pressure that has avoided, and then improved stability greatly, promptly: when needs are right during back flow 2 protects, rotate lead screw 43, lead screw 43 screw drive slider 46 slides on slide rail 44, makes slider 46 drive protecting crust 41 and removes, makes protecting crust 41 drive anchor strut 42 and removes, slides between anchor strut 42 and the slide rail 44, and anchor strut 42's setting makes the supporting effect to protecting crust 41 better, makes compressive capacity stronger, making back flow 2 accomodate in the inside of holding tank 45 after protecting crust 41 removes, and then makes back flow 2's stability is better, and the effectual back flow 2 that prevents strikes deformation and damages, and then has improved stability greatly.

Specifically, the mounting structure 8 includes a sliding frame 85, the shielding electric pump 1 is provided with the sliding frame 85 in sliding connection, the sliding frame 85 is provided with a rotating shaft 83 connected in a rotating manner, the rotating shaft 83 is connected with a connecting frame 82, the connecting frame 82 is provided with a control module 81, the shielding electric pump 1 is provided with a sliding rod 84 in sliding connection, the sliding rod 84 is fixed to the sliding frame 85, and the shielding electric pump 1 is provided with a second reset spring 86 for resetting the sliding rod 84.

Specifically, the second limiting structure 9 includes a third return spring 92, the shielding electric pump 1 is provided with a third return spring 92 for abutting against the second fixture block 91, the second fixture block 91 is slidably connected to the shielding electric pump 1, the cross section of the second fixture block 91 is T-shaped, the end of the second fixture block 91 is a non-cylindrical polygon, the second fixture block 91 is engaged with the rotating shaft 83 and the sliding frame 85 to limit the rotating shaft 83 and the sliding frame 85, the shielding electric pump 1 is provided with a mounting structure 8, the mounting structure 8 is limited by the second limiting structure 9 on the shielding electric pump 1, so as to drive the mounting structure 8 to slide out when the control module 81 is maintained, and adjust the angle of the control module 81, so that the maintenance of the control module 81 is more convenient and rapid, that is: when the control module 81 needs to be overhauled and maintained, the second fixture block 91 is pushed, the second fixture block 91 is enabled to be in sliding contact with the shielding electric pump 1 and compressed by the third return spring 92, the second fixture block 91 is separated from the rotating shaft 83 and the sliding frame 85, the second fixture block 91 is enabled not to be limited to the rotating shaft 83 and the sliding frame 85, the second return spring 86 extends and contacts the sliding rod 84, the sliding rod 84 drives the sliding frame 84 to slide out of the shielding electric pump 1, the connecting frame 82 slides out of the shielding electric pump 1, then the connecting frame 82 can be rotated, the rotating shaft 83 is driven to rotate with the sliding frame 85, the angle can be adjusted after the connecting frame 82 slides out, and the control module 81 is convenient and rapid to overhaul and maintain.

Specifically, the liquid discharge structure 5 comprises a connecting sleeve 51, the connecting sleeve 51 is connected to the flange plate 3 through a bolt, a cover plate 53 is arranged on the connecting sleeve 51, a liquid discharge pipe 52 is arranged on the connecting sleeve 51, a trapezoidal-structure accommodating groove 55 is arranged on the connecting sleeve 51, the liquid discharge pipe 52 is communicated with the accommodating groove 55, a plurality of positioning rods 54 are arranged in an internal circumferential array of the connecting sleeve 51, and the length of each positioning rod 54 is smaller than the thickness of an actual mounting flange.

Specifically, fixed knot constructs 6 and includes scroll bar 63, be equipped with the scroll bar 63 that rotates the connection on the adapter sleeve 51, mesh between scroll bar 63 and the turbine 61, rotate between turbine 61 and the adapter sleeve 51 and be connected, be equipped with transmission circle 62 on the turbine 61, be equipped with drive block 65 on the transmission circle 62, be equipped with the gyro wheel 67 that rotates the connection on the drive block 65, roll connection between the drive groove 64 on gyro wheel 67 and the stopper 66, the slope of drive groove 64 sets up, the cross-section of the tip of stopper 66 is trapezoidal.

Specifically, the first limiting structure 7 includes a piston 71, the canned motor pump 1 is provided with the piston 71 in a sliding manner, an end portion of the piston 71 extends to the accommodating groove 55, the piston 71 is driven to slide according to the accumulated liquid in the connecting sleeve 51, the canned motor pump 1 is provided with a first clamping block 74 in a sliding connection manner, a diversion groove 72 is arranged between the first clamping block 74 and the piston 71, a first return spring 73 is arranged between the first clamping block 74 and the canned motor pump 1, the first clamping block 74 can be clamped with a hole in the turbine 61, the flange 3 is provided with a liquid discharge structure 5 for discharging liquid, the liquid discharge structure 5 is provided with a fixing structure 6 for connecting the pipeline flange, the liquid discharge structure 5 is provided with the first limiting structure 7 for limiting the fixing structure 6, so that accumulated liquid can be discharged through the liquid discharge structure 5, and liquid leakage when the flange is detached can be effectively prevented, simultaneously be convenient for install fixedly through fixed knot constructs 6 quick to the flange, improved the efficiency and the quality of the installation dismantlement of flange greatly, simultaneously when the liquid of flowing back 5's inside does not discharge completely, the first limit structure 7 of weight drive of liquid carries on spacingly to fixed knot constructs 6, the effectual maloperation that prevents, and then has improved the security greatly, promptly: firstly, the connecting sleeve 51 is fixed on the flange plate 3 through bolts, so that the drain pipe 52 is at the lowest position, then the hole of the flange of the pipeline is aligned with the positioning rod 54, the positioning rod 54 is arranged to further facilitate the positioning of the flange, so that the installation is quicker, then the worm rod 63 is rotated, the worm rod 63 drives the worm wheel 61 to rotate around the connecting sleeve 51 through threads, the worm wheel 61 rotates to drive the transmission ring 62 to rotate, the transmission ring 62 drives the driving block 65 to move, the roller 67 at the end part of the driving block 65 rolls in the driving groove 64, the driving groove 64 is obliquely arranged, so that the limiting block 66 is driven to slide towards the circle center in the rolling process of the roller 67, the end part of the limiting block 66 is trapezoidal, the flange is further quickly pushed to collide against the connecting sleeve 51, so that the flange is quickly installed, when liquid exists in the connecting sleeve 51, the liquid is gathered in the receiving groove 55 to push the piston 71 to slide, a diversion trench 72 is formed between the piston 71 and the first fixture block 74, so that the first fixture block 74 is pushed by gas to be clamped with the hole in the turbine 61, the first return spring 73 extends, and liquid leakage caused by the fact that the flange is detached when liquid is stored in the connecting sleeve 51 is effectively prevented, and safety is greatly improved.

When the backflow pipe 2 is used, when the backflow pipe 2 needs to be protected, the screw rod 43 is rotated, the screw rod 43 drives the sliding block 46 to slide on the sliding rail 44 in a threaded manner, the sliding block 46 drives the protective shell 41 to move, the protective shell 41 drives the reinforcing rod 42 to move, the reinforcing rod 42 slides with the sliding rail 44, the reinforcing rod 42 is arranged to enable the protective shell 41 to be better supported, the pressure resistance is higher, the backflow pipe 2 is accommodated in the accommodating groove 45 after the protective shell 41 moves, the stability of the backflow pipe 2 is better, the backflow pipe 2 is effectively prevented from being damaged due to impact deformation, and the stability is greatly improved; when the control module 81 needs to be overhauled and maintained, the second fixture block 91 is pushed, so that the second fixture block 91 and the shielding electric pump 1 are in sliding contact with the third return spring 92 for compression, the second fixture block 91 is separated from the rotating shaft 83 and the sliding frame 85, the second fixture block 91 does not limit the rotating shaft 83 and the sliding frame 85, the second return spring 86 extends to abut against the sliding rod 84, the sliding rod 84 drives the sliding frame 84 to slide out of the shielding electric pump 1, the connecting frame 82 slides out of the shielding electric pump 1, then the connecting frame 82 can be rotated, the connecting frame 82 drives the rotating shaft 83 and the sliding frame 85 to rotate, the angle can be adjusted after the connecting frame 82 slides out, and the control module 81 is convenient and rapid to overhaul and maintain; firstly, the connecting sleeve 51 is fixed on the flange plate 3 through bolts, so that the drain pipe 52 is at the lowest position, then the hole of the flange of the pipeline is aligned with the positioning rod 54, the positioning rod 54 is arranged to further facilitate the positioning of the flange, so that the installation is quicker, then the worm rod 63 is rotated, the worm rod 63 drives the worm wheel 61 to rotate around the connecting sleeve 51 through threads, the worm wheel 61 rotates to drive the transmission ring 62 to rotate, the transmission ring 62 drives the driving block 65 to move, the roller 67 at the end part of the driving block 65 rolls in the driving groove 64, the driving groove 64 is obliquely arranged, so that the limiting block 66 is driven to slide towards the circle center in the rolling process of the roller 67, the end part of the limiting block 66 is trapezoidal, the flange is further quickly pushed to collide against the connecting sleeve 51, so that the flange is quickly installed, when liquid exists in the connecting sleeve 51, the liquid is gathered in the receiving groove 55 to push the piston 71 to slide, a diversion trench 72 is formed between the piston 71 and the first fixture block 74, so that the first fixture block 74 is pushed by gas to be clamped with the hole in the turbine 61, the first return spring 73 extends, and liquid leakage caused by the fact that the flange is detached when liquid is stored in the connecting sleeve 51 is effectively prevented, and safety is greatly improved.

The control module 81 comprises a single chip microcomputer MCU control circuit, a power supply circuit, a motor drive circuit, a sampling circuit, a voltage detection circuit and a current detection circuit; the MCU control circuit of the single chip microcomputer is electrically connected with the power supply circuit, and the power supply circuit provides electric energy for the MCU control circuit of the single chip microcomputer; the power circuit is electrically connected with the motor driving circuit and provides electric energy for the motor driving circuit; the current detection circuit is electrically connected with the MCU control circuit of the single chip microcomputer, the voltage detection circuit is electrically connected between the power supply circuit and the MCU control circuit of the single chip microcomputer, the sampling circuit is electrically connected between the current detection circuit and the motor drive circuit, and the sampling circuit is used for collecting the current of the motor drive circuit in real time.

The power failure detection circuit is characterized by further comprising a memory storage circuit, wherein the memory storage circuit is electrically connected with the single chip microcomputer MCU control circuit, and the memory storage circuit is used for providing energy for the single chip microcomputer MCU control circuit to memorize working parameters of the single chip microcomputer MCU control circuit when the power failure occurs.

The memory storage circuit can effectively protect the data parameters of the MCU control circuit of the single chip microcomputer, and when the power failure emergency occurs, the memory storage circuit can supply power to the MCU control circuit of the single chip microcomputer, so that the data loss in the MCU control circuit of the single chip microcomputer can be effectively prevented.

The power supply circuit comprises an EMC circuit, a rectifying circuit and a working power supply circuit;

the input end of the EMC circuit is externally connected with a mains supply, the output end of the EMC circuit is electrically connected with the input end of the rectifying circuit, and the output end of the rectifying circuit is electrically connected with the working power supply circuit;

the electromagnetic compatibility (EMC) circuit is used for resisting electromagnetic interference existing in an environment where the EMC circuit is located, the rectifying circuit is used for shaping alternating current into required direct current, the working power supply circuit comprises a driving power supply circuit and a power supply circuit, the driving power supply circuit is used for supplying power to the motor driving circuit, and the power supply circuit is used for supplying power to the motor driving circuit.

The EMC circuit can reduce the error that leads to because of environmental disturbance, improves the accuracy of whole circuit system.

The rectifier circuit is a bridge rectifier circuit. Bridge rectifier circuit has circuit structure simple, and practical device is few, advantages such as low power dissipation, and bridge rectifier circuit is withstand voltage can reduce advantage such as half for full wave rectifier circuit simultaneously.

Still be equipped with 6 way PWM output circuit, 6 way PWM output circuit electric connection are between singlechip MCU control circuit and motor drive circuit for provide pulse signal for motor drive circuit.

And the 6-path PWM output circuit is used for supplying electric energy to the motor.

And the single chip microcomputer debugging interface is also arranged and used for testing the electrical characteristics of the single chip microcomputer chip and discharging faults of the control circuit.

The debugging interface is a JTAG interface, the electrical characteristics of the MCU can be tested through the JTAG interface, whether the MCU has problems can be detected through the JTAG interface, and faults of the whole control circuit can be discharged through the JTAG interface.

The display interface is further arranged and used for being externally connected with a display screen, and information of the overcurrent detection circuit and the voltage detection circuit can be displayed on the display screen in real time.

Can be through the external display device of display interface, can show overcurrent detection circuit and voltage detection circuit's information real-time on display device, in case the motor breaks down, can show trouble information on display device, can shorten people and overhaul the time of motor trouble

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The efficient canned motor pump with the control module convenient to install comprises a canned motor pump (1), wherein a return pipe (2) for liquid backflow is arranged on the canned motor pump (1), and two flange plates (3) are arranged at the end part of the canned motor pump (1), and the canned motor pump is characterized in that an installation structure (8) is arranged on the canned motor pump (1), and the installation structure (8) is limited through a second limiting structure (9) on the canned motor pump (1); the shielding electric pump (1) is provided with a protection structure (4) for protecting the return pipe (2); a liquid discharging structure (5) for discharging liquid is arranged on the flange plate (3), a fixing structure (6) for connecting a pipeline flange is arranged on the liquid discharging structure (5), and a first limiting structure (7) for limiting the fixing structure (6) is arranged on the liquid discharging structure (5);

the liquid discharge structure (5) comprises a connecting sleeve (51), the connecting sleeve (51) is connected to the flange plate (3) through a bolt, a cover plate (53) is arranged on the connecting sleeve (51), a liquid discharge pipe (52) is arranged on the connecting sleeve (51), a trapezoidal-structure accommodating groove (55) is arranged on the connecting sleeve (51), and the liquid discharge pipe (52) is communicated with the accommodating groove (55);

fixed knot constructs (6) and includes scroll bar (63), be equipped with on adapter sleeve (51) and rotate scroll bar (63) of connecting, mesh between scroll bar (63) and turbine (61), rotate between turbine (61) and adapter sleeve (51) and be connected, be equipped with transmission circle (62) on turbine (61), be equipped with drive block (65) on transmission circle (62), be equipped with on drive block (65) and rotate gyro wheel (67) of connecting, roll connection between drive groove (64) on gyro wheel (67) and stopper (66), drive groove (64) slope sets up, the cross-section of the tip of stopper (66) is trapezoidal.

2. The canned motor pump of claim 1, wherein: the protective structure (4) comprises a sliding rail (44), the electric shielding pump (1) is provided with the sliding rail (44), the sliding rail (44) is provided with a sliding block (46), the sliding rail (44) is provided with a screw rod (43) for driving the sliding block (46) to slide along the sliding rail (44), the screw rod (43) is rotatably connected with the sliding rail (44), the end part of the sliding block (46) is provided with a protective shell (41), and the protective shell (41) is internally provided with an accommodating groove (45) for accommodating the return pipe (2).

3. The canned motor pump of claim 2, wherein: both ends of protecting crust (41) all are equipped with stiffening rod (42), stiffening rod (42) with sliding connection between slide rail (44).

4. The canned motor pump of claim 1, wherein: the mounting structure (8) comprises a sliding frame (85), the shielding electric pump (1) is provided with the sliding frame (85) in sliding connection, the sliding frame (85) is provided with a rotating shaft (83) in rotating connection, the rotating shaft (83) is connected with a connecting frame (82), and the connecting frame (82) is provided with a control module (81).

5. The canned motor pump of claim 4, wherein: the shielding electric pump is characterized in that a sliding rod (84) in sliding connection is arranged on the shielding electric pump (1), the sliding rod (84) is fixed on a sliding frame (85), and a second reset spring (86) used for resetting the sliding rod (84) is arranged on the shielding electric pump (1).

6. The canned motor pump of claim 5, wherein: the second limiting structure (9) comprises a third return spring (92), the shielding electric pump (1) is provided with the third return spring (92) used for abutting against the second clamping block (91), the second clamping block (91) is in sliding connection with the shielding electric pump (1), the section of the second clamping block (91) is T-shaped, the end portion of the second clamping block (91) is a non-cylindrical polygon, and the second clamping block (91) is clamped with the rotating shaft (83) and the sliding frame (85) thereof after sliding and used for limiting the rotating shaft (83) and the sliding frame (85) thereof.

7. The canned motor pump of claim 1, wherein: the inner circumference array of the connecting sleeve (51) is provided with a plurality of positioning rods (54), and the length of each positioning rod (54) is smaller than the thickness of an actual mounting flange.

8. The canned motor pump of claim 1, wherein: the first limiting structure (7) comprises a piston (71), the piston (71) slides on the canned motor pump (1), the end of the piston (71) extends to the accommodating groove (55), the piston (71) is driven to slide according to the accumulated liquid in the connecting sleeve (51), a first clamping block (74) in sliding connection is arranged in the canned motor pump (1), a flow guide groove (72) is formed between the first clamping block (74) and the piston (71), a first return spring (73) is arranged between the first clamping block (74) and the canned motor pump (1), and the first clamping block (74) can be clamped with a hole in the turbine (61).