CN204267306U - A kind of high-speed, multi-stage Centrifugal water pump - Google Patents
A kind of high-speed, multi-stage Centrifugal water pump Download PDFInfo
- Publication number
- CN204267306U CN204267306U CN201420481503.0U CN201420481503U CN204267306U CN 204267306 U CN204267306 U CN 204267306U CN 201420481503 U CN201420481503 U CN 201420481503U CN 204267306 U CN204267306 U CN 204267306U
- Authority
- CN
- China
- Prior art keywords
- speed
- motor
- pump
- water pump
- centrifugal water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The utility model relates to a kind of high-speed centrifugal water pump, adopts all kinds of horizontal or vertical single-stage or the multistage centrifugal pump of receded disk impeller.The motor of high-speed centrifugal water pump adopts the pump controller of direct current brushless permanent magnet high-speed synchronous motor and the supporting DC synchronous converter technique of pump, makes single-stage or multistage centrifugal pump by program variable frequency work in a certain high velocity range of setting.It, compared with existing centrifugal pump, has motion speed high, and the centrifugal pump of envelope-bulk to weight ratio same lift flow is at least over half less, and efficiency is also higher than Ordinary Centrifugal Pumps a lot.Obtain in volume, weight, efficiency, intelligent control etc. and further optimize, accomplish multifunctional electromechanical integrated.
Description
Technical field
The utility model relates to a kind of Centrifugal water pump, comprises all kinds of single-stage or multistage centrifugal pump that adopt centrifugal impeller.
Background technique
Urban architecture is supplied water, and major part all adopts multistage centrifugal water supplying pump.The motor used is single-phase or threephase asynchronous machine mostly.This motor limits due to structural principle, and rotating speed is fixed, and efficiency is on the low side, and technique falls behind to be badly in need of correcting and improves.
Lift of pump and flow are determined by impeller outer diameter and runner, improve rotating speed, flow and lift can be made significantly to improve, therefore will improve rotating speed as far as possible to realize the improvement of pump performance in the scope of parts license.The rotating speed of pump is doubled, and same impeller presses theory calculate lift by raising four times, and flow doubles, and ordinary three-phase synchronous attached with frequency converters can realize at a high speed, but efficiency is not high, controls inconvenience, heavy.
Summary of the invention
Technological scheme to be solved in the utility model provides a kind of high-speed, multi-stage Centrifugal water pump for prior art present situation, makes centrifugal pump that is multistage or single-stage be promoted further in volume, weight, efficiency, intelligent control etc. and optimize.
The technological scheme that the utility model adopts is: provide the multistage centrifugal water pump that a kind of brush DC high-speed permanent magnetic synchronous motor is used as power, the controller of this motor and DC Frequency Conversion Technology supports the use, direct current brushless permanent magnet high-speed synchronous motor belongs to control motor, it controls convenient efficient again, and being specially adapted to pressure flow etc. needs on the centrifugal pump of control.
Common frequency variator can only control asynchronous motor, and controller and the common frequency variator of brush DC high-speed synchronous motor are different, and it adopts up-to-date DC frequency-changing control technique.Pump controller is by power supply unit, and input sample feeds back, microprocessor, Unit four such as power drive output.Power supply unit is by bridge rectifier; the composition such as power filter and protective circuit; input sample feedback is that input control signal is to microprocessor; electric circuit inspection working condition also feeds back to microprocessor; sampling feedback comprises the program that will make motor rotation, and position probing and computing, the contrast conting of load operation situation; after the comprehensive analytic operation of microprocessor, export to pump motor through power drive.The working principle of the centrifugal pump of this and traditional centrifugal pump and general vector transducer drive asynchronous motor is completely different.
Pump controller is general and pump is separately independent installs, and also can be contained on the pump housing, as being contained on the pump housing, radiator can be directly installed on outside pump, utilizes the current in the pump housing to cool, and the controller parts such as electronic component just with radiator dress, form integral type.
Described brushless, permanently synchronous motor stator winding has distributed winding and centralized winding two kinds.The stator structure of the high speed three-phase synchronous motor of distributed winding and ordinary three-phase synchronous are substantially similar, and stator can be selected by common Y-series stator punching, and the process such as line bag insulator pin is all the same with ordinary three-phase synchronous.But the rotor of motor and different, this rotor has magnet steel, belongs to magnet rotor.Rotor die casting aluminium ring in tooth window bar of old-fashioned three-phase or single phase motor, aluminium ring is closed-loop path, does cutting magnetic line and rotary motion in stator field, rotates and rotates, be slower than the rotation in magnetic field all the time along with stator field.Often loss is larger for the rotor of this die casting aluminium, generally account for 5-7% of total losses, and the magnet rotor that this product uses only has a little eddy current loss, substantially not loss of energy, and the wire circle of permanent magnet high-speed motor is fewer than asynchronous motor, wire is short, and resistance value is also little, and therefore overall loss is fewer than asynchronous motor a lot.Therefore the efficiency of brush DC high-speed synchronous motor raises the efficiency nearly 20% than common single-phase motor, raises the efficiency 7-12% than the motor of three-phase.
Centralized winding changes traditional electric machine winding mode especially, compares with distributed, and advantageously, its stator winding is shorter for this structure, and less by copper cash amount, that is the resistance value of wire is less, copper loss power=I
2﹡ R, the value of resistance R is little, and loss is also just low.
The coil of fraction winding and centralized winding is all connected into Y connection, power supply drives through the pump controller of DC Frequency Conversion Technology, the magnetic field rotated is produced at stator coil, the magnet steel of rotor is rotated, the size and Orientation of counterelectromotive force is constantly detected again to determine rotor-position in rotary course, the frequency of the impulsive current of continuous adjustment drive coil, current direction and size, rotor high-speed is rotated, the rotation of magnetic steel rotor is the same with the magnetic field of coil armature all the time to rotate, rotating speed is the same, all keep the same rotating speed when external force is less than rotating force, be therefore synchronous machine.And the speed of this synchronous machine be by controller set controlled.
The working speed of brushless, permanently high-speed electric expreess locomotive considers that working method is air-cooled, and speed is proper at 5000-6000 rev/min, can give full play to advantage at a high speed like this, makes again the running statees such as bearing mechanical sealing stable good.The centrifugal pump rotating speed of general 50Hz is 2850 revs/min, and 5000 revs/min is 2850 revs/min 1.754 times, by fluid mechanics principle, after rotating speed improves 1.754 times, lift is 2 powers, improve 3 times, flow is first power, improve 1.754 times, use 3 impellers was now just just enough with an impeller in the past, and flow also wants large, and the volume weight of high-speed synchronous motor also reduces 2/3 than common asynchronous moter, therefore, to reduce over half with the volume and weight of the multistage centrifugal pump of brush DC synchronous machine than other old-fashioned multistage pumps.
Direct current brushless permanent magnet high-speed synchronous motor comprises back end cover for motor, motor front end cover, stators and rotators, and described direct current brushless permanent magnet high-speed synchronous motor adopts fan cooling cooling, and described back end cover for motor outside is provided with external fan.Described external fan outside is provided with rainproof fan guard, the same with common asynchronous air-cooled motor.
Direct current brushless permanent magnet high-speed synchronous motor arranges upper and lower two groups of motor bearingss, and the pump housing arranges upper and lower two groups of pumps supporting, is respectively pump upper support and pump lower support.Motor bearings is high-precision deep groove ball bearing or angle contacting high-speed bearing.
Such brush-less permanent magnetic high-speed synchronous motor coordinates frequency variator to use, and the microprocessor of pump controller enrolls the program of the various operating modes required by pump, and pump just can carry out work by the control program of setting.Form the AC induction motor of high speed with existing employing frequency conversion to compare with the single-stage of direct current high-speed electric expreess locomotive or multistage centrifugal pump, the single-stage that the utility model provides or multistage Centrifugal water pump are owing to adopting high-speed synchronous motor, be provided with efficient, volume is little, lightweight, can the advantage such as intelligent program control, performance has had and has significantly promoted.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model
Fig. 2 is the system principle diagram of embodiment of the present utility model;
Fig. 3 is the utility model pump structure schematic diagram;
Fig. 4 is the distributed winding construction schematic diagram of direct current brushless permanent magnet high-speed synchronous motor in the utility model;
Fig. 5 is the centralized winding construction schematic diagram of direct current brushless permanent magnet high-speed synchronous motor in the utility model;
Embodiment
The utility model is further described with specific embodiment below in conjunction with accompanying drawing, see Fig. 1-5: the present embodiment is for multistage centrifugal pump, as shown in Figure 1, the frequency variator of multistage centrifugal pump includes power rectifier 4, microprocessor 1 and power driver module 2 etc., wherein power rectifier 4 is that civil power is become direct current through rectifying and wave-filtering, for frequency variator provides power supply.Microprocessor 1 for receiving extraneous input signal (as panel button input signal, flux signal, pressure signal etc.), and is analyzed each input signal, compare and is processed, to export various control signal.Power driver module 2 is controlled by microprocessor, works for driving direct current brushless permanent magnet high-speed synchronous motor 3.
As shown in Figure 2, the pump housing 14 and motor coaxle, the pump housing 14 is in motor lower portion; Direct current brushless permanent magnet high-speed synchronous motor comprises back end cover for motor, motor front end cover, stator 5 and rotor 6, direct current brushless permanent magnet high-speed synchronous motor adopts fan cooling, back end cover for motor outside is provided with external fan 7, the outside of external fan 7 is provided with rainproof fan guard, direct current brushless permanent magnet high-speed synchronous motor arranges upper and lower two groups of motor bearingss 9, the pump housing 14 arranges upper and lower two groups of pumps supporting, being respectively pump upper support 10 and pump lower support 15, is impeller 11, stator 12 and stage casing 13 between pump upper support 10 and pump lower support 15.Motor bearings 9 is high-precision angle contacting high-speed bearing or deep groove ball bearing, and pump supporting is plastics guide bearing.Motor is coaxial with pump, and pump shaft is four fulcrum shafts.
As shown in Figure 3, direct current brushless permanent magnet high-speed synchronous motor distributed stator 5 structure is substantially the same with ordinary three-phase synchronous, and magnet steel or the embedded magnet steel 7 of rotor are pasted in rotor 6 surface of motor, and interposition keyway 8, for being socketed with rotating shaft.Magnet steel adopts Nd-Fe-B magnet steel or permanent-magnet ferrite.In order to the making of magnet steel and easy to use, number of magnetic poles often gets 4,6,8 poles, and line bag is by sinusoidal wave distribution, and strand, intersection or stacked decide according to groove number or number of poles, and with cold bundle silicon steel sheet on the material of stator, coil is by high speed design.This motor is connected with the output terminal of pump controller, after controller input threephase AC, the impulsive current ripple drive motor that controller exports rotates, along with the change of the stator rotating magnetic field of motor, rotor is and then stator field rotation also, be different from the such cage modle winding of asynchronous motor or aluminium ring and make cutting magnetic line and asynchronous, can not be slow as asynchronous machine rotor, rotor is that " synchronously " rotates.As Fig. 1 be shown in frequency variator microprocessor on enroll various control programs required by pump, pump just realizes intelligent work.
The working state etc. of motor 3 controls power driver module 2 by microprocessor 1, and driver module 2 pushing motor 3, processes signal feed back to microprocessors such as the phase place of motor, voltage, electric current, temperature simultaneously, then control power model work.Indicator window organized by frequency variator panel more, is used for showing pressure, flow, rotating speed and the supply voltage at that time under working state and operating current etc.In addition panel also have work indicator light and failure code, convenient for maintaining.
The difference that no matter the drive software form of motor is open loop, closed loop, self adaption, fuzzy control etc. technology are drive form, being all the structure of this product too busy to get away, is all this product rights scope.
Above-described embodiment is only preferred embodiment of the present utility model, not limits protection domain of the present utility model according to this, therefore: all equivalence changes done according to structure of the present utility model, shape, principle, all should be covered by within protection domain of the present utility model.
Claims (7)
1. a high-speed, multi-stage Centrifugal water pump, it is characterized in that: the motor of multistage centrifugal water pump adopts direct current brushless permanent magnet high-speed synchronous motor, and this direct current brushless permanent magnet high-speed synchronous electric drilling match has frequency-variable controller, centrifugal pump is worked under the program that frequency-variable controller sets in high speed range; The pump controller of wherein said frequency-variable controller comprises power supply unit, input sample feedback, microprocessor and power drive and exports Unit four, and power supply unit comprises bridge rectifier, power filter and protective circuit.
2. a kind of high-speed, multi-stage Centrifugal water pump according to claim 1, it is characterized in that: described direct current brushless permanent magnet high-speed synchronous motor has distributed winding and centralized winding two kinds of forms, the rotor of motor is magnetic steel structure, magnet steel has the Interior permanent magnet be embedded in rotor, and magnet steel is attached to external magnet steel two kinds of modes of rotor surface.
3. a kind of high-speed, multi-stage Centrifugal water pump according to claim 2, is characterized in that: described magnet steel adopts Nd-Fe-B magnet steel or other permanent magnets.
4. a kind of high-speed, multi-stage Centrifugal water pump according to claim 1, is characterized in that: the scope of described multistage centrifugal water pump comprises the various vertical or horizontal of employing receded disk impeller, single-stage or multistage centrifugal pump.
5. a kind of high-speed, multi-stage Centrifugal water pump according to claim 1, is characterized in that: the supporting controller of pump has one or more control modes such as frequency, pressure, flow, water level, time.
6. a kind of high-speed, multi-stage Centrifugal water pump according to claim 1, is characterized in that: frequency-variable controller to be arranged on the shell of pump, inside fan housing, inside terminal box or external separately.
7. a kind of high-speed, multi-stage Centrifugal water pump according to claim 1, it is characterized in that: described direct current brushless permanent magnet high-speed synchronous motor comprises back end cover for motor, motor front end cover, stators and rotators, described direct current brushless permanent magnet high-speed synchronous motor adopts fan cooling, described back end cover for motor outside is provided with external fan, and described external fan outside is provided with rainproof fan guard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420481503.0U CN204267306U (en) | 2014-08-25 | 2014-08-25 | A kind of high-speed, multi-stage Centrifugal water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420481503.0U CN204267306U (en) | 2014-08-25 | 2014-08-25 | A kind of high-speed, multi-stage Centrifugal water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204267306U true CN204267306U (en) | 2015-04-15 |
Family
ID=52802177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420481503.0U Expired - Fee Related CN204267306U (en) | 2014-08-25 | 2014-08-25 | A kind of high-speed, multi-stage Centrifugal water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204267306U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122039A (en) * | 2016-07-29 | 2016-11-16 | 苏州工业园区驿力机车科技股份有限公司 | Brushless speed governing magnetic water pump |
| CN106401987A (en) * | 2016-12-13 | 2017-02-15 | 荆门市召铭液压科技有限公司 | Flow-adjustable fire pump |
| CN106843055A (en) * | 2017-02-24 | 2017-06-13 | 杭州茂葳科技有限公司 | A kind of constant pressure frequency conversion permagnetic synchronous motor driving plate |
-
2014
- 2014-08-25 CN CN201420481503.0U patent/CN204267306U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122039A (en) * | 2016-07-29 | 2016-11-16 | 苏州工业园区驿力机车科技股份有限公司 | Brushless speed governing magnetic water pump |
| CN106401987A (en) * | 2016-12-13 | 2017-02-15 | 荆门市召铭液压科技有限公司 | Flow-adjustable fire pump |
| CN106843055A (en) * | 2017-02-24 | 2017-06-13 | 杭州茂葳科技有限公司 | A kind of constant pressure frequency conversion permagnetic synchronous motor driving plate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104124849B (en) | Draining pump brushless motor and draining pump | |
| CN101789738B (en) | Device and method for controlling doubly salient permanent magnet motor | |
| CN101110543A (en) | Compressor and its control method | |
| CN202789465U (en) | Intelligent and high-efficiency deep-well pump | |
| CN101807827A (en) | digital motor | |
| CN204267306U (en) | A kind of high-speed, multi-stage Centrifugal water pump | |
| CN103821727A (en) | High-speed axial flow pump | |
| CN205622460U (en) | Brushless dust catcher electric wind machine | |
| CN105429547B (en) | Single-phase brushless direct-current motor vector control method based on virtual phase structure | |
| CN107171520A (en) | Axial permanent magnetic aids in magnetic resistance type composite rotors high-speed electric expreess locomotive and its control method | |
| CN201315560Y (en) | Direct current brushless motor driving device | |
| CN101106290A (en) | A permanent magnetic synchronization motor | |
| CN210201679U (en) | Three-phase permanent magnet synchronous motor | |
| CN110048571A (en) | A kind of three-phase permanent-magnetic synchronous motors and its starting method | |
| CN2560153Y (en) | Permanent magnetic asyn high-speed electric machine | |
| CN104269985A (en) | Direct-current brushless permanent magnet synchronous motor for driving machine tool spindle and controller thereof | |
| CN204003482U (en) | High speed axial-flow pump | |
| CN203441777U (en) | Intelligent and highly efficient pipeline pump | |
| CN201515278U (en) | digital motor | |
| CN201204528Y (en) | Low speed large-torque moment motor | |
| CN104767322B (en) | A kind of motor speed control device being controlled rotating speed by the adjustment magnetic line of force | |
| Xiang et al. | Design and optimization of BLDC machine for bidirectional impeller pump | |
| CN207732599U (en) | Asynchronous motor based on pulsating field | |
| CN205622459U (en) | Brushless dust catcher electric wind machine | |
| CN207150379U (en) | A kind of axial permanent magnetic aids in magnetic resistance type composite rotors high-speed electric expreess locomotive |
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: 20170122 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: 20200522 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. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 Termination date: 20210825 |