CN106787368B - Driving device for water feed pump and water feed pump - Google Patents
Driving device for water feed pump and water feed pump Download PDFInfo
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- CN106787368B CN106787368B CN201710135831.3A CN201710135831A CN106787368B CN 106787368 B CN106787368 B CN 106787368B CN 201710135831 A CN201710135831 A CN 201710135831A CN 106787368 B CN106787368 B CN 106787368B
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- synchronous motor
- permanent magnet
- magnet synchronous
- speed regulator
- frequency speed
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 230000001360 synchronised effect Effects 0.000 claims abstract description 64
- 238000001816 cooling Methods 0.000 claims abstract description 37
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 238000009413 insulation Methods 0.000 claims description 7
- 238000009423 ventilation Methods 0.000 claims description 7
- 239000006096 absorbing agent Substances 0.000 claims description 5
- 230000035939 shock Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000013016 damping Methods 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 230000017525 heat dissipation Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 6
- 238000004804 winding Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/20—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by changing the driving speed
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
- H02K1/165—Shape, form or location of the slots
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/02—Details
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/02—Casings or enclosures characterised by the material thereof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
- H02K2201/03—Machines characterised by aspects of the air-gap between rotor and stator
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Abstract
The invention discloses a driving device for a feed pump and the feed pump, wherein the driving device comprises a permanent magnet synchronous motor and a variable frequency speed regulator, wherein the permanent magnet synchronous motor is used for driving the feed pump to operate, the permanent magnet synchronous motor comprises a base, the variable frequency speed regulator is fixedly arranged on the base and forms an integrated structure with the permanent magnet synchronous motor, the variable frequency speed regulator is electrically connected with the permanent magnet synchronous motor, the driving device also comprises a cooling device for cooling the permanent magnet synchronous motor and the variable frequency speed regulator, and the cooling device is arranged in the permanent magnet synchronous motor. The driving device changes the rotating speed of the permanent magnet synchronous motor through the variable frequency speed regulator, thereby regulating the flow of the water pump, reducing the energy consumption and further reducing the use cost of the water pump.
Description
Method field
The invention relates to the technical field of water pumps, in particular to a driving device for a water feed pump and the water feed pump.
Background method
In the fields of industry, agriculture and resident life, the application quantity of load machines such as a water pump is large, and according to statistics, the matched motor of the water pump accounts for 23% of the total motor quantity, the annual energy consumption station generating capacity is 20%, and in common equipment, the proportion of the water pump is high. However, the current electric energy utilization rate of water pump products is very low, the actual running efficiency is less than 50%, the running efficiency of the system is less than 30%, 100 hundred million kilowatt-hours of electric power is wasted in water pump loads in China each year, the flow of the water pump needs to be regulated in some loads, and valves, baffles and the like are often adopted in the prior art to regulate the flow, so that the running efficiency of the system is obviously reduced.
Moreover, the motor drives a valve with a variable water outlet for a long time to operate at a constant rotating speed, and the motor operates at a high pressure head at a constant speed, so that the valve can be closed to reduce the flow, but the value of reducing the energy consumption is very small.
Disclosure of Invention
The invention aims to overcome the defects of the prior method and provide a driving device for a water supply pump, which can regulate the flow of a water pump and has small electricity consumption.
In order to achieve the above purpose, the invention adopts the following scheme:
the driving device for the feed pump comprises a permanent magnet synchronous motor and a variable frequency speed regulator, wherein the permanent magnet synchronous motor is used for driving the feed pump to operate, the permanent magnet synchronous motor comprises a base, the variable frequency speed regulator is fixedly arranged on the base and forms an integrated structure with the permanent magnet synchronous motor, the variable frequency speed regulator is electrically connected with the permanent magnet synchronous motor, the driving device further comprises a cooling device used for cooling the permanent magnet synchronous motor and the variable frequency speed regulator, and the cooling device is arranged in the permanent magnet synchronous motor.
Preferably, the machine base is provided with a ventilation groove, the variable-frequency speed regulator comprises a bottom plate, the bottom plate is installed on the ventilation groove, the variable-frequency speed regulator further comprises an inverter, and the inverter is installed on the bottom plate.
Preferably, the machine base is provided with heat dissipation ribs on other end surfaces except the end surface on which the variable frequency speed regulator is mounted, and the extending direction of the heat dissipation ribs is perpendicular to the end surface on which the heat dissipation ribs are arranged.
Preferably, the cooling device comprises a cooling fan, the cooling fan comprises an impeller, the impeller comprises a hub and a plurality of blades radially extending outwards from the hub, and the inclination direction of the blades is opposite to the rotation direction of the cooling fan when the cooling fan operates.
Preferably, the driving device further includes a heat insulation damper provided between the variable frequency governor and the permanent magnet synchronous motor.
Preferably, the variable frequency speed regulator further comprises an alternating current reactor arranged on the alternating current side of the power supply of the variable frequency speed regulator and a direct current reactor arranged on the direct current bus at the output end of the variable frequency speed regulator.
Preferably, the permanent magnet synchronous motor comprises a stator, the stator comprises a stator core, the reference frequency of the permanent magnet synchronous motor is higher than the reference frequency of a standard permanent magnet synchronous motor with the same specification, and the length of the stator core is 65% -75% of the length of the stator core of the standard permanent magnet synchronous motor with the same specification.
Preferably, the permanent magnet synchronous motor comprises a rotor, wherein the rotor comprises a rotor core and magnetic steel, the magnetic steel is embedded in the rotor core, and the magnetic steel is close to the outer circumferential surface of the rotor core.
Preferably, the length of an air gap of the permanent magnet synchronous motor is 1.0-4.0.
The invention also provides a feed pump having a drive arrangement as claimed in any one of the preceding claims.
Due to the application of the scheme, compared with the prior art, the method has the following advantages: the driving device for the water supply pump changes the rotating speed of the permanent magnet synchronous motor through the variable frequency speed regulator, so as to regulate the flow of the water pump, reduce the energy consumption and lower the use cost of the water pump.
Drawings
FIG. 1 is a schematic diagram of a driving device for a feed pump according to the present invention;
FIG. 2 is a schematic view of the structure of the base of the driving device for a feed pump according to the present invention;
FIG. 3 is a schematic view showing the structure of a bottom plate of the driving device for a feed pump according to the present invention;
FIG. 4 is a schematic view showing a structure of a cooling fan of a driving device for a feed pump according to the present invention;
FIG. 5 is a schematic view showing a structure of a heat-insulating damper of a driving device for a feed pump according to the present invention;
fig. 6 is a schematic structural view of a rotor of the driving device for a feed pump according to the present invention.
Wherein: 1. a permanent magnet synchronous motor; 11. a base; 111. a support platform; 112. a ventilation groove; 113. a heat dissipation rib; 12. a rotor; 121. a rotor core; 122. magnetic steel; 2. a variable frequency speed regulator; 21. a bottom plate; 211. a plug-in part; 212. a connection part; 213. a heat dissipation rib; 3. a cooling fan; 31. a hub; 32. a fan blade; 4. a thermal insulation shock absorber; 41. a main body; 42. an embedding part.
Detailed Description
The method scheme of the invention is further described below with reference to the accompanying drawings and specific examples.
The water supply pump mainly comprises a water pump body and a driving device for driving the water pump body to operate.
As shown in fig. 1, the driving device for the feed pump of the present invention comprises a permanent magnet synchronous motor 1 and a variable frequency speed regulator 2, wherein the variable frequency speed regulator 2 and the permanent magnet synchronous motor 1 are fixedly arranged together to form an integrated structure, the variable frequency speed regulator 2 is electrically connected with the permanent magnet synchronous motor 1, and the rotation speed of the permanent magnet synchronous motor 1 is changed through the variable frequency speed regulator 2, so as to control the flow rate of the feed pump.
The permanent magnet synchronous motor 1 comprises a base 11, in this embodiment, the base 11 is in a square structure, a supporting platform 111 is arranged on the upper end surface of the base 11, the variable frequency speed regulator 2 comprises a bottom plate 21, and the bottom plate 21 of the variable frequency speed regulator 2 is fixedly arranged on the supporting platform 111, so that the driving device forms a knapsack type structure.
The permanent magnet synchronous motor 1 and the variable frequency speed regulator 2 of the driving device share a set of cooling device, in this embodiment, the cooling device adopts an air-cooled cooling mode, and specifically includes a cooling fan 3, the cooling fan 3 is disposed in a fan housing of the permanent magnet synchronous motor 1, a ventilation slot 112 is disposed in the middle of a supporting platform 111 of the stand 11, a bottom plate 21 includes an inserting portion 211 and a connecting portion 212, the inserting portion 211 is inserted in the ventilation slot 112, the connecting portion 212 is erected on the supporting platform 111 and is fixedly connected with the supporting platform 111, and thus, cooling air flow blown out by the cooling fan 3 cools the variable frequency speed regulator 2 through convection.
The cooling fan 3 comprises an impeller, the impeller comprises a hub 31 and a plurality of blades 32 radially extending outwards from the hub 31, the inclination direction of the blades 32 is opposite to the rotation direction of the cooling fan 3 during operation, namely, the blades 32 of the cooling fan 3 adopt a backward inclined structure, and the noise during operation of the cooling fan 3 can be reduced due to the structural design.
The cooling fan 3 is independently driven by a variable frequency motor installed in the fan housing of the permanent magnet synchronous motor 1, so that the cooling air flow parameters of the cooling fan 3 can be kept unchanged regardless of the rotational speed at which the variable frequency governor 2 drives the permanent magnet synchronous motor 1. In this embodiment, the cooling airflow parameters are: air volume 337m3/h, and air pressure 35Pa.
When the cooling device is in operation, damping fluid is sprayed on the inner walls of the fan blades 32 and the fan housing, so that vibration of the cooling fan 3 during operation can be reduced.
In order to enhance the heat dissipation effect, the base 11 and the bottom plate 21 are both made of aluminum materials, and the other end surfaces of the base 11 except the upper end surface are provided with heat dissipation ribs 113, and the extending direction of the heat dissipation ribs 113 is perpendicular to the end surface provided with the heat dissipation ribs 113. The bottom plate 21 is also provided with heat dissipation ribs 213.
The variable-frequency governor 2 further includes a housing and an inverter provided in the housing, and the inverter is mounted on the connection portion 212 of the bottom plate 21 due to a large heat generation amount of the inverter.
Because the water pump load has dampproofing requirement, so be equipped with seal structure on the shell of variable frequency speed regulator 2, this has influenced the radiating effect of variable frequency speed regulator 2 to a certain extent, therefore, the capacity of the power tube of this dc-to-ac converter needs the moderate amplification on the basis of the capacity of the power tube of the standard dc-to-ac converter of same specification, and need install the power tube of dc-to-ac converter on bottom plate 21 to the conduction heat dissipation of power tube.
The variable frequency speed regulator 2 also comprises an alternating current reactor arranged on the alternating current side of the power supply of the variable frequency speed regulator 2 and a direct current reactor arranged on the direct current bus at the output end of the variable frequency speed regulator 2, so that higher harmonic waves generated by the inverter can be absorbed on site, the electromagnetic noise of the variable frequency speed regulator 2 is reduced, and the noise of the water supply pump unit is reduced.
The heat insulation shock absorber 4 is arranged between the connection part of the permanent magnet synchronous motor 1 and the variable frequency speed regulator 2, and through the arrangement of the heat insulation shock absorber 4, heat of the back of the permanent magnet synchronous motor 1 can be prevented from being conducted to the variable frequency speed regulator 2 through the supporting platform 111, and meanwhile vibration of the permanent magnet synchronous motor 1 in operation can be reduced from being transmitted to the variable frequency speed regulator 2.
As shown in the drawings, the thermal insulation damper 4 includes a main body 41 and an embedded portion 42 embedded in the main body 41, the main body 41 is made of rubber and a damping material, the embedded portion 42 is made of a metal material, the embedded portion 42 has two groups, which are embedded in an upper portion and a lower portion of the main body 41, respectively, and the embedded portion 42 is provided with a threaded hole so as to be connected with the base 11 and the bottom plate 21.
The permanent magnet synchronous motor 1 further comprises a stator, in order to reduce the number of the machine seat and reduce the material consumption, thereby reducing the manufacturing cost of the permanent magnet synchronous motor 1, and the reference frequency of the permanent magnet synchronous motor 1 can be improved, but after the reference flatness is improved, under the condition that other parameters are kept unchanged, the stator iron loss is increased, the length of a stator iron core is shortened, and the stator iron loss can be reduced, and the length of the stator iron core is optimal when 65% -75% of the length of the stator iron core of a standard permanent magnet synchronous motor with the same specification is calculated, so that the efficiency of the permanent magnet synchronous motor 1 can still reach the 1-level energy efficiency.
Taking a Y2 series 132M-6 permanent magnet synchronous motor as an example, when the reference frequency of the permanent magnet synchronous motor 1 is increased from 50Hz to 150Hz, the stator iron loss is calculated according to the following formula:
wherein:taking the empirical coefficient as 2.5-2.0;
loss of core per unit weight;
is the magnetic induction intensity;
and->All are reference frequencies, < >>To change the previous reference frequency, in this embodiment 50Hz, < >>To increase the reference frequency, 150Hz was used.
At the position of、/>、/>When the reference frequency of the permanent magnet synchronous motor 1 is increased from 50Hz to 150Hz under the condition that the weight of the stator iron core is the same, the stator iron loss is increased>Namely, 4.17 times, when the length of the stator core is shortened to 130mm, the stator iron loss is correspondingly reduced, and the stator iron loss can be controlled to be about 285w at the moment, and the efficiency of the permanent magnet synchronous motor 1 can still reach 1-level energy efficiency.
In order to reduce stray losses, the stator core is in the form of a chute.
The slot filling rate of the stator winding is improved, so that the slot filling rate is controlled within the range of 78% -80%, and copper consumption can be reduced. The improvement of the slot filling rate of the stator winding is mainly achieved by increasing the copper consumption in the stator slots, which can be achieved by changing the slot type structure of the stator slots, or by improving the winding diameter or the placement mode in the case that the slot type structure of the stator slots is unchanged.
The permanent magnet synchronous motor 1 further comprises a rotor 12, the rotor 12 comprises a rotor core 121 and magnetic steel 122, the magnetic steel 122 is embedded in the rotor core 121, and the magnetic steel 122 is close to the outer circumferential surface of the rotor core 121 in the rotor core 121, so that the consumption of the magnetic steel 122 is small, the cost can be saved, and the magnetic steel 122 is not easy to be separated from the rotor core 121 due to the fact that the magnetic steel 122 is embedded in the rotor core 121, and the operation is reliable.
In order to further reduce stray loss, the efficiency of the permanent magnet synchronous motor 1 can reach 1-level energy efficiency, the air gap length of the permanent magnet synchronous motor 1 can be increased, the air gap length of the permanent magnet synchronous motor is 1.0-4.0, and specific numerical values can be set according to the specification of the permanent magnet synchronous motor. Taking a Y2 series 132M-6 permanent magnet synchronous motor as an example, the stray loss can be controlled to be about 170w after the length of an air gap is increased from 0.35 to 1.0.
In summary, the driving device for the water feed pump of the invention adjusts the flow rate of the water pump by changing the rotating speed of the permanent magnet synchronous motor through the variable frequency speed regulator, thereby reducing the energy consumption, reducing the selling price of the water feed pump by about 35 percent, reducing the cost of the variable frequency speed regulator and the selling price by about 45.23 percent. In addition, the efficiency of the permanent magnet synchronous motor in the driving device can reach a 1-level energy efficiency limiting value, and the noise in the operation process of the driving device is small and can reach 55dB (A).
The above embodiments are provided for illustrating the method concept and features of the present invention, and are intended to enable those skilled in the art to understand the present invention and to implement the same, not to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (7)
1. A drive device for a feed pump, characterized in that: the permanent magnet synchronous motor comprises a base, the variable frequency speed regulator is fixedly arranged on the base and is electrically connected with the permanent magnet synchronous motor, the driving device further comprises a cooling device used for cooling the permanent magnet synchronous motor and the variable frequency speed regulator, the cooling device is arranged in the permanent magnet synchronous motor, the driving device further comprises a heat insulation shock absorber arranged between the connection parts of the variable frequency speed regulator and the permanent magnet synchronous motor, the heat insulation shock absorber comprises a main body and an embedded part embedded in the main body, the main body is made of rubber and damping materials, the embedded part is made of metal materials, the embedded part is respectively embedded in the upper part and the lower part of the main body, the embedded part is respectively connected with the permanent magnet synchronous motor and the variable frequency speed regulator, the permanent magnet synchronous motor comprises a stator, the reference frequency of the permanent magnet synchronous motor is 150Hz, and the length of the permanent magnet synchronous motor with the same length of the same iron core is equal to that of the stator is equal to 0.65-0.65% of the synchronous motor.
2. The drive device for a feed pump according to claim 1, wherein: the machine seat is provided with a ventilation groove, the variable-frequency speed regulator comprises a bottom plate, the bottom plate is arranged on the ventilation groove, the variable-frequency speed regulator further comprises an inverter, and the inverter is arranged on the bottom plate.
3. The drive device for a feed pump according to claim 1, wherein: the machine base is provided with radiating ribs on other end surfaces except the end surface on which the variable-frequency speed regulator is mounted, and the extending direction of the radiating ribs is perpendicular to the end surface on which the radiating ribs are arranged.
4. The drive device for a feed pump according to claim 1, wherein: the cooling device comprises a cooling fan, the cooling fan comprises an impeller, the impeller comprises a hub and a plurality of fan blades which are radially extended outwards from the hub, and the inclination direction of the fan blades is opposite to the rotation direction of the cooling fan during operation.
5. The drive device for a feed pump according to claim 1, wherein: the variable frequency speed regulator also comprises an alternating current reactor arranged on the alternating current side of the power supply of the variable frequency speed regulator and a direct current reactor arranged on the direct current bus at the output end of the variable frequency speed regulator.
6. The drive device for a feed pump according to claim 1, wherein: the permanent magnet synchronous motor comprises a rotor, wherein the rotor comprises a rotor core and magnetic steel, the magnetic steel is embedded in the rotor core, and the magnetic steel is close to the outer circumferential surface of the rotor core.
7. A water feed pump, characterized by: a drive device according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710135831.3A CN106787368B (en) | 2017-03-09 | 2017-03-09 | Driving device for water feed pump and water feed pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710135831.3A CN106787368B (en) | 2017-03-09 | 2017-03-09 | Driving device for water feed pump and water feed pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106787368A CN106787368A (en) | 2017-05-31 |
| CN106787368B true CN106787368B (en) | 2024-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710135831.3A Active CN106787368B (en) | 2017-03-09 | 2017-03-09 | Driving device for water feed pump and water feed pump |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110469495A (en) * | 2018-05-11 | 2019-11-19 | 上海威派格智慧水务股份有限公司 | A kind of method for diagnosing faults of more water pump water supply systems |
| CN110469520A (en) * | 2018-05-11 | 2019-11-19 | 上海威派格智慧水务股份有限公司 | The mobile debugging system of integrated water pump and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635887A (en) * | 2012-05-04 | 2012-08-15 | 米技电子电器(上海)有限公司 | Extractor hood with function of reducing vibration and noise |
| CN205858708U (en) * | 2016-05-23 | 2017-01-04 | 新界泵业集团股份有限公司 | Integral type frequency conversion electric pump |
| CN206490525U (en) * | 2017-03-09 | 2017-09-12 | 江苏久知电机技术有限公司 | A kind of feed pump drive device and feed pump |
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2017
- 2017-03-09 CN CN201710135831.3A patent/CN106787368B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635887A (en) * | 2012-05-04 | 2012-08-15 | 米技电子电器(上海)有限公司 | Extractor hood with function of reducing vibration and noise |
| CN205858708U (en) * | 2016-05-23 | 2017-01-04 | 新界泵业集团股份有限公司 | Integral type frequency conversion electric pump |
| CN206490525U (en) * | 2017-03-09 | 2017-09-12 | 江苏久知电机技术有限公司 | A kind of feed pump drive device and feed pump |
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Address after: 215000 Chuangju Road, Qidu Town, Wujiang District, Suzhou City, Jiangsu Province Applicant after: Jiangsu Jiuzhi Electric Co.,Ltd. Address before: 215234 Chuangju Road, Qidu Town, Wujiang District, Suzhou City, Jiangsu Province Applicant before: JIANGSU JIUZHI MOTOR TECHNOLOGY Co.,Ltd. |
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