CN204003482U - High speed axial-flow pump - Google Patents

High speed axial-flow pump Download PDF

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Publication number
CN204003482U
CN204003482U CN201420091521.8U CN201420091521U CN204003482U CN 204003482 U CN204003482 U CN 204003482U CN 201420091521 U CN201420091521 U CN 201420091521U CN 204003482 U CN204003482 U CN 204003482U
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CN
China
Prior art keywords
pump
flow
speed
axial
motor
Prior art date
Application number
CN201420091521.8U
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Chinese (zh)
Inventor
金可友
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浙江创美机电有限公司
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Priority to CN201420091521.8U priority Critical patent/CN204003482U/en
Application granted granted Critical
Publication of CN204003482U publication Critical patent/CN204003482U/en

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Abstract

The utility model belongs to pump technology field, is a kind of high speed axial-flow pump, the integral formula structure of the pump housing and drive motor.One or above aial flow impeller are installed on the motor shaft of described drive motor, and described drive motor is brush DC high-speed permanent magnet motor or high-speed permanent magnetic synchronous motor.The utility model is the high speed axial-flow pump of making of brush DC high-speed permanent magnet motor or high-speed permanent magnetic synchronous motor, one or above aial flow impeller are installed on the axle of motor, impeller requires single-stage or multistage according to lift, the aial flow impeller of one-level impeller becomes mixed flow pump, and more than two-stage is axial flow pump.This axial-flow pump envelope-bulk to weight ratio same specification conventional well is little a lot of with submersible pump and horizontal centrifugal pump, and feature is that flow is large, and lift is the very low concept of off the beaten track axial-flow pump, reaches the general centrifugal lift of pump of same specification receded disk impeller.Be a kind of large flow, without stopping up, energy-efficient, volume is little lightweight, intelligentized axial-flow pump.

Description

High speed axial-flow pump

Technical field

The utility model belongs to pump technology field, refers in particular to a kind of high speed axial-flow pump.

Background technique

Conventional axial flow lift of pump is very low, be generally same diameter impeller centrifugal pump tens percent, so axial-flow pump cannot be in conventional applications.

Existing axial flow mixed flow pump is all large-scale, be used as power by powerful threephase asynchronous machine, due to general 4 utmost points or 6 utmost points or 8 utmost point motors of adopting of reason of motor configuration, the rotating speed of the power supply of 50Hz be respectively 1450 turn/, 980 revs/min, 730 revs/min, pumping hole footpath is all high-power pump more than diameter 200mm, be mainly used in the occasion of low lift and large flow rate, as rivers irrigation and drainage, green alkali industry etc.Existing axial-flow pump lift low discharge is large, but pump efficiency exceeds much than the pump of general conventional receded disk impeller.The little reason of axial-flow pump application area is that volume is large, and lift is low, so fewer in general industrial or agricultural life application.

Summary of the invention

The utility model provides a kind of axial-flow pump of high-speed rotary running, be used as power with DC brushless motor at a high speed, the conventional axial-flow pump of envelope-bulk to weight ratio is little a lot, can reach again the general centrifugal lift of pump of same specification receded disk impeller, there is large flow, the novel high speed axial-flow pump of the advantages such as energy-efficient, volume is little lightweight, intelligent.

The purpose of this utility model is achieved in that

High speed axial-flow pump, comprises the pump housing and drive motor one.More than one aial flow impeller is installed on the motor shaft of described drive motor, and described drive motor is brush DC high-speed permanent magnet motor or high-speed permanent magnetic synchronous motor.

On the rotor of described high-speed permanent magnetic synchronous motor, permanent magnetic steel is housed, permanent magnetic steel is surface-mount type or built-in.

Preferably, the stator coil structure of described high-speed permanent magnetic synchronous motor is centralized or distributed.

Preferably, described brush DC high-speed permanent magnetic or high-speed synchronous motor are furnished with controller, and described controller comprises

Input and display modular, for flow and pressure and the input of other input and display setting.

Power rectifier, it is for civil power is become to direct current through rectifying and wave-filtering, for controller and motor provide power supply;

DSP DSP digital signal processor, it is for receiving extraneous input signal, and the signal of each input and feedback is analyzed, relatively and process, and exports the various power driver modules that control signal to, and makes pump reach the various operation modes of entirely starting building such as constant pressure and flow;

And, power driver module, it is controlled by DSP DSP digital signal processor, and power driver module is for drive motor work.

Preferably, under described motor shaft, side bearing is magnetic thrust-bearing.

The utility model compared to existing technology, has following outstanding and useful technique effect to be:

The utility model is the axial-flow pump of making of brush DC high-speed permanent magnet motor or high-speed permanent magnetic synchronous motor, one or above aial flow impeller are installed on the axle of motor, impeller requires to adopt single-stage or multistage according to lift, the aial flow impeller of one-level impeller becomes mixed flow pump, and more than secondary is axial flow pump.High speed axial flow pump volume weight ratio conventional well is little a lot of with submersible pump or horizontal centrifugal pump, because pump running speed is high, lift is the very low concept of off the beaten track axial-flow pump, reach the general centrifugal lift of pump of same specification receded disk impeller, be a kind of large flow, without stopping up, energy-efficient, volume is little lightweight, intelligentized axial-flow pump.

Brief description of the drawings

Fig. 1 is structure diagram of the present utility model.

Fig. 2 is aial flow impeller schematic diagram of the present utility model.

Schematic diagram when Fig. 3 is the utility model with horizontal use.

Fig. 4 is the theory diagram of controller of the present utility model.

Fig. 5 is centralized winding rotor schematic diagram of the present utility model.

Fig. 6 is distributed winding rotor schematic diagram of the present utility model.

In figure: 1-aial flow impeller; 2-cylindrical shell; 3-bearing; 4-magnetic thrust-bearing; 5-drive motor; 11-stator; 12-rotor; 13-magnet steel; 14-motor shaft.

Embodiment

The utility model is further described with specific embodiment below in conjunction with accompanying drawing, referring to Fig. 1-6:

High speed axial-flow pump, comprises the pump housing, is provided with drive motor 5 in the pump housing, and more than one aial flow impeller 1 is installed on the motor shaft 14 of described drive motor, and described drive motor is brush DC high-speed permanent magnet motor or high-speed permanent magnetic synchronous motor.Aial flow impeller 1 passes through motor shaft driven rotary, and promotes current ejection.Aial flow impeller 1 adopts stainless steel material casting or stainless steel punch welding to form, and can adapt to the feature of large flow; Entery and delivery port and pump housing bore are basic identical.

Described axial-flow blower, can be three leaves, four Ye Huowuye states, six impeller structures.

On the rotor of described high-speed permanent magnetic synchronous motor, permanent magnetic steel is housed, permanent magnetic steel is surface-mount type or built-in.

Preferably, the stator coil structure of described high-speed permanent magnetic synchronous motor is centralized or distributed.

Between the motor shaft lower end of drive motor 5 and bearing support, be provided with magnetic thrust-bearing 4, described magnetic thrust-bearing comprises permanent magnet I and permanent magnet II, and permanent magnet I is hung on permanent magnet II top, and the identical magnetic force of the polarity of both opposing sides repels each other; Permanent magnet I is fixed on motor shaft lower end, and permanent magnet II is fixed on bearing support.

Centralized winding rotor as shown in Figure 5, stator 11 structures of brushless, permanently synchronous machine, the multiple that the groove number of the stator 11 of motor is 3, motor shaft 14 is outer magnet steel, the rotor 12 surface label magnet steel 13 of motor.Magnet steel adopts Nd-Fe-B magnet steel or other permanent magnets.For the making of magnet steel and easy to use, number of magnetic poles is often got 4,6,8 utmost points.Distributed winding coil distributes by sinusoidal wave, and strand, intersection or folded formula decide according to groove number or number of poles, and on the material that stator is used, with cold bundle silicon steel sheet, coil is by high speed design.

Distributed winding rotor as shown in Figure 6.

Described brush DC high-speed permanent magnetic or high-speed synchronous motor are furnished with controller, and described controller comprises

Input and display modular, for flow and pressure and the input of other input and display setting;

Power rectifier, it is for civil power is become to direct current through rectifying and wave-filtering, for controller and motor provide power supply;

DSP DSP digital signal processor, it is for receiving extraneous input signal, and the signal of each input and feedback is analyzed, relatively and process, and exports the various power driver modules that control signal to, and makes pump reach constant pressure and flow work;

And power driver module, it is controlled by DSP DSP digital signal processor, and power driver module is for drive motor work.

Input and display modular comprise pressure transducer, flow transducer, and pressure transducer, flow transducer can be contained in the runner of the pump housing or on pipeline; Power rectifier part becomes direct current by civil power (single-phase or three-phase) through rectifying and wave-filtering; Controller writes the desired various control programs of high speed axial-flow pump, and axial-flow pump is just realized intelligent work.The working state of motor etc. is driven by the power model of DSP DSP CONTROL, power driver module promotes DC brushless motor, signal feed back to the DSP DSP digital signal processor such as phase place during simultaneously by machine operation, voltage, electric current are processed, then the work of power ratio control module.On controller panel, there are many group indicator windows, are used for showing supply voltage and operating current and the failure code etc. under pressure, rotating speed and work at present state, easy to use and maintenance.This controller also can have the functions such as PFC, ensures that this product possesses good power factor.

Electric machines control technology adopts the permanent magnetic asyn high-speed electric machine of high-frequency signal injection without sensor control technique, has broken away from traditional first-harmonic information detection, the processing mode of identification; Accurately trace into rotor-position by digital processing circuit; The position-sensor-free speed control system that this controlling method realizes is more superior effectively than general current closed-loop, speed closed loop control.No matter operate in low speed or high speed, this self-sensing method is tracking motor rotor physical location well, obtains good tracking accuracy.In conjunction with DSP digital control circuit, signal is processed, debated knowledge, follows the tracks of the relevant circuit such as power ratio control output again, realize the various controls to brush-less permanent magnetic high-speed synchronous motor.The control mode of drive motor can also be by other principles, as square wave control theory, and sinusoidal wave control strategy, current closed-loop method, the control of speed current double closed-loop, and other fuzzy control theories, neural unit are from controlling, adaptive technique control etc.

Controller can be controlled pressure signal comparison, regulating frequency, make controller to pumping up first constant voltage work, to flow signal fusing control, make controller play constant current work, and the various mode of operations of many time periods work etc., also can carry out remote operation control by digital port and internet introducing.

Pump can be vertical well submersible pump, can be also the horizontal pump of non-diving as shown in Figure 2.

Conventional axial flow lift of pump is very low, be generally same diameter centrifugal pump tens percent, so cannot adopt the pump of axial flow form on the pump of routine application.The axial-flow pump rotating speed that the utility model adopts is the high speed of 7200 revs/min of left and right, and under high like this rotating speed, the lift of axial flow one-level impeller is close with the centrifugal pump lift of same specification, but flow-rate ratio centrifugal pump is large a lot.The impeller of centrifugal pump is that current enter from impeller center, go out through impeller channel centrifugal force, during to next stage impeller through turning through 180 degree, one-level one-level superposes up like this, multistage centrifugal pump is as deep-well pump, flowing water is all so turning of one 180 degree through the impeller of every one-level, and water channel is as multiple " bow " font, and the efficiency in waterpower conversion is just low like this.The impeller of axial-flow pump is axial, there is no so many turnings, and efficiency is naturally just high.The motor of adding use is brush DC high-speed permanent magnet motor or the high-speed permanent magnetic synchronous motor of high-speed and high-efficiency, therefore, this axial-flow pump is just high a lot of than the pump efficiency of conventional receded disk impeller, and the conventional centrifugal pump of pump volume weight ratio has lacked a lot (volume reduces more than 1/5 on year-on-year basis).Also having filled up the blank of the high speed centrifugal pump of low lift and large flow rate, realized the large flow of compact submersible pump and centrifugal pump, is a new field of high-capacity pump application.

Described high-speed brushless permagnetic synchronous motor comprises DC brushless motor, permanent magnetic brushless, due to the synchronizing function of the persevering rotating speed of magneto, claims again brushless, permanently synchronous machine again.

Compared with the axial-flow pump of axial-flow pump of the present utility model and existing employing AC induction motor, from volume weight, efficiency or application, basic variation has all occurred, it can be applied to various occasions; Compared with adopting the submersible pump and horizontal centrifugal pump of receded disk impeller, it is the new pump of the large flow of a kind of high efficiency.It is a kind of pump of the novel concept of not met in the past.Axial-flow pump of the present utility model is owing to adopting high-speed brushless synchronous machine, have efficient energy-saving, can intelligent program control, the advantage such as volume is little, lightweight.

Above-described embodiment is only preferred embodiment of the present utility model, not limits according to this protection domain of the present utility model, therefore: all equivalences of doing according to structure of the present utility model, shape, principle change, within all should being covered by protection domain of the present utility model.

Claims (6)

1. high speed axial-flow pump, comprises the pump housing, is provided with drive motor in the pump housing, it is characterized in that, more than one aial flow impeller is installed on the motor shaft of described drive motor, and described drive motor is brush DC high-speed permanent magnet motor or high-speed permanent magnetic synchronous motor; Under described motor shaft, side bearing is magnetic thrust-bearing, and described magnetic thrust-bearing comprises permanent magnet I and permanent magnet II, and permanent magnet I is hung on permanent magnet II top, and the identical magnetic force of the polarity of both opposing sides repels each other; Permanent magnet I is fixed on motor shaft lower end, and permanent magnet II is fixed on bearing support.
2. high speed axial-flow pump according to claim 1, is characterized in that, pump can be that submersible type uses or land horizontal use.
3. high speed axial-flow pump according to claim 1, is characterized in that, aial flow impeller can be three leaves or leafy.
4. high speed axial-flow pump according to claim 1, is characterized in that, on the rotor of described high-speed permanent magnetic synchronous motor, permanent magnetic steel is housed, and permanent magnetic steel is surface-mount type or built-in.
5. high speed axial-flow pump according to claim 1, is characterized in that, the stator coil structure of described high-speed permanent magnetic synchronous motor is centralized or distributed.
6. high speed axial-flow pump according to claim 1, is characterized in that, described brush DC high-speed permanent magnetic or high-speed synchronous motor are furnished with controller.
CN201420091521.8U 2014-02-28 2014-02-28 High speed axial-flow pump CN204003482U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420091521.8U CN204003482U (en) 2014-02-28 2014-02-28 High speed axial-flow pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420091521.8U CN204003482U (en) 2014-02-28 2014-02-28 High speed axial-flow pump

Publications (1)

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CN204003482U true CN204003482U (en) 2014-12-10

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015127846A1 (en) * 2014-02-28 2015-09-03 浙江创美机电有限公司 High speed axial flow pump
CN108867836A (en) * 2018-05-16 2018-11-23 湖南耐普泵业股份有限公司 Floating crawler belt movable pump station

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015127846A1 (en) * 2014-02-28 2015-09-03 浙江创美机电有限公司 High speed axial flow pump
CN108867836A (en) * 2018-05-16 2018-11-23 湖南耐普泵业股份有限公司 Floating crawler belt movable pump station

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20170111

Address after: Taizhou City, Zhejiang province 317521 Wenling City Zeguo town Muyu electromechanical Industrial Park

Patentee after: ZHEJIANG XILING CO., LTD.

Address before: The town of Wenling Taizhou City Tower Ao village of 317522 cities in Zhejiang Province

Patentee before: Zhejiang Chuangmei Electromotor Co., Ltd.

Effective date of registration: 20170111

Address after: Taizhou City, Zhejiang province 317521 Wenling City Zeguo town Muyu electromechanical Industrial Park

Patentee after: ZHEJIANG XILING CO., LTD.

Address before: The town of Wenling Taizhou City Tower Ao village of 317522 cities in Zhejiang Province

Patentee before: Zhejiang Chuangmei Electromotor Co., Ltd.

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20200513

Address after: The town of Wenling Taizhou City Tower Ao village of 317522 cities in Zhejiang Province

Patentee after: ZHEJIANG CHUANGMEI ELECTROMOTOR Co.,Ltd.

Address before: Taizhou City, Zhejiang province 317521 Wenling City Zeguo town Muyu electromechanical Industrial Park

Patentee before: ZHEJIANG XILING Co.,Ltd.