CN210686341U - Permanent magnet frequency conversion energy-saving pump - Google Patents
Permanent magnet frequency conversion energy-saving pump Download PDFInfo
- Publication number
- CN210686341U CN210686341U CN201921692482.6U CN201921692482U CN210686341U CN 210686341 U CN210686341 U CN 210686341U CN 201921692482 U CN201921692482 U CN 201921692482U CN 210686341 U CN210686341 U CN 210686341U
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- shell
- frequency converter
- motor
- pump
- 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.)
- Active
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a permanent magnet frequency conversion energy-saving pump, which comprises a permanent magnet motor, a frequency converter fixing plate, a frequency converter, a fixing bolt, a pump head, a shell, an impeller, a base, a motor frame, a shaft and a flange; a frequency converter fixing plate is fixedly installed on one side of the permanent magnet motor, a frequency converter is fixedly installed on the frequency converter fixing plate through a fixing bolt, the permanent magnet motor is fixedly installed on a motor frame, an output shaft of the permanent magnet motor is connected with a pump head through the motor frame, the pump head is installed at one end of a shell, two impellers are arranged in the shell in parallel, and the two impellers are fixedly installed in the shell through a shaft to form a sealed cavity; this is novel, choose for use high performance converter installation and permanent magnetism water pump on, realize the constant pressure water supply. The product after installation has compact structure, stable performance and more energy saving. The permanent magnet motor has small volume, large output power, large starting torque, impact force on a power grid, low failure rate and reliable operation, and is a substitute product of a common pump.
Description
Technical Field
The utility model relates to a plumbing technical field specifically is a permanent magnetism frequency conversion energy-saving pump.
Background
At present, a variable frequency control cabinet is usually used for controlling a water pump, namely, a frequency converter is installed in the control cabinet, the water pump and the frequency converter are separated, and a PLC control system is used for realizing functions of adding and subtracting the pump, regulating the speed of the frequency converter and the like to realize constant-pressure water supply. The frequency converter is not easy to mount and dissipate heat in the control cabinet, and the mounting and maintenance are inconvenient; and the used water pump is mostly a squirrel-cage type and winding type three-phase alternating current asynchronous motor, which is not energy-saving, and the current is large under the starting torque. Therefore, it is necessary to design a permanent magnet variable frequency energy-saving pump.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a permanent magnetism frequency conversion energy-saving pump to solve the problem that proposes in the above-mentioned background art.
In order to solve the technical problem, the utility model provides a following technical scheme: a permanent magnet frequency conversion energy-saving pump comprises a permanent magnet motor, a frequency converter fixing plate, a frequency converter, a fixing bolt, a pump head, a shell, an impeller, a base, a motor frame, a shaft and a flange; permanent magnet motor's one side fixed mounting has the converter fixed plate, there is the converter through fixing bolt fixed mounting on the converter fixed plate, permanent magnet motor fixed mounting is on the motor frame, and permanent magnet motor's output shaft passes through the motor frame and is connected with the pump head, the one end at the shell is installed to the pump head, the inside parallel arrangement of shell has two impellers, and two impellers pass through axle fixed mounting and form sealed chamber in the shell.
Furthermore, the power supply connected with the permanent magnet motor is a three-phase five-wire power supply.
Furthermore, the number of the fixing bolts is four, and the fixing bolts are evenly distributed at four corners of the frequency converter.
Further, the shell is fixedly installed on the base, and flanges are arranged at two ends of the base.
Furthermore, one end of the flange is communicated with the inside of the shell, and the other end of the flange is in butt joint with the inlet and the outlet of the outer pipeline.
Compared with the prior art, the utility model discloses the beneficial effect who reaches is:
1. compact structure, installation and maintenance are convenient. The permanent magnet frequency conversion energy-saving pump is characterized in that a waterproof high-performance frequency converter is arranged on a permanent magnet motor, so that the motor and the frequency converter are integrated into a whole. The structure that the frequency converter is required to be installed in the control cabinet in the prior art is changed, and the frequency converter is overheated due to poor heat dissipation of a closed space in which the frequency converter is installed in the control cabinet; the frequency converter is damaged, the limited space in the cabinet is not easy to replace, and the problem is thoroughly solved by carrying the frequency converter on the motor.
2. Small volume and light weight.
3. Energy is saved. Compared with the common motor, the new energy permanent magnet motor does not need reactive exciting current, can obviously improve the power factor (can reach 1, even capacity), reduces the stator current and the stator resistance loss, does not have rotor copper loss in stable operation, can further reduce a fan (a small-capacity motor or even a fan can be removed) and corresponding wind friction loss, and can improve the efficiency by 2-8 percentage points compared with an induction motor with the same specification. Moreover, the permanent magnet synchronous motor can keep higher efficiency and power factor within the range of 25-120% of rated load, so that the energy-saving effect is more remarkable when the permanent magnet synchronous motor is operated under light load. Such machines typically have a starting winding on the rotor with the ability to start directly at a certain frequency and voltage. And the constant-voltage speed regulation function of the frequency converter enables the pump to always run at the frequency which can meet the water demand and can run at low frequency instead of the power frequency of 50HZ, thereby saving electricity.
4. The power density and the efficiency are high. The high power density mainly means that the permanent magnet motor has small volume and large power generation or output power. The permanent magnet motor has the advantages that the excitation magnetic field is provided by the permanent magnet, the rotor does not need excitation current, the motor efficiency is improved, compared with the traditional motor, the electric energy is saved at any rotating speed point, and the advantage is particularly obvious when the rotating speed is low.
5. The failure rate is lower and the operation is reliable.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic view of the overall plane structure of the present invention;
fig. 2 is a schematic diagram of the overall system of the present invention;
in the figure: 1. a permanent magnet motor; 2. a frequency converter fixing plate; 3. a frequency converter; 4. fixing the bolt; 5. a pump head; 6. a housing; 7. an impeller; 8. a base; 9. a motor frame; 10. a shaft; 11. a flange; 12. a three-phase five-wire power supply; 13. oppositely clamping a butterfly valve; 14. a water pipe; 15. a gate valve; 16. a pressure sensor; 17. a check valve; 18. and (7) a pressure stabilizing tank.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: a permanent magnet frequency conversion energy-saving pump comprises a permanent magnet motor 1, a frequency converter fixing plate 2, a frequency converter 3, a fixing bolt 4, a pump head 5, a shell 6, an impeller 7, a base 8, a motor frame 9, a shaft 10 and a flange 11; a frequency converter fixing plate 2 is fixedly arranged on one side of a permanent magnet motor 1, a power supply connected with the permanent magnet motor 1 is a three-phase five-wire power supply, a frequency converter 3 is fixedly arranged on the frequency converter fixing plate 2 through a fixing bolt 4, the number of the fixing bolts 4 is four, and are uniformly distributed at four corners of the frequency converter 3, so as to ensure the stability of the connection part, the permanent magnet motor 1 is fixedly arranged on the motor frame 9, and the output shaft of the permanent magnet motor 1 is connected with the pump head 5 through a motor frame 9, the pump head 5 is arranged at one end of the shell 6, two impellers 7 are arranged in the shell 6 in parallel, and the two impellers 7 are fixedly arranged in the shell 6 through a shaft 10 to form a closed cavity, the shell 6 is fixedly arranged on the base 8, flanges 11 are arranged at two ends of the base 8, one end of each flange 11 is communicated with the inside of the shell 6, and the other end of each flange 11 is in butt joint with an inlet and an outlet of the outer pipeline, so that a water path is conveniently communicated; the frequency converter 3 is arranged on the permanent magnet motor 1 and the water pump to form a whole; compared with a common squirrel-cage motor, the permanent magnet motor 1 has remarkable energy saving effect, and the speed regulation function of the high-performance frequency converter 3 is more energy-saving; the constant-pressure speed regulation can be independently completed, and the constant-pressure water supply can be realized by using one permanent magnet variable-frequency energy-saving pump as a main pump to control the addition and subtraction pumps of other auxiliary pumps in a linkage manner; in consideration of the manufacturing cost, even a PLC system control cabinet can be omitted, and only power is supplied to each pump; the specific debugging steps are as follows:
1. setting the measuring range of a pressure sensor 16 and the feedback type of the pressure sensor;
2. determining a type of pump;
3. setting parameters:
a. selecting the number of water pumps (selecting several pumps to supply water in a network, and the pump frequency converter can drive 5 variable frequency water pumps at most through communication and simultaneously control the addition and subtraction pumps and the rotating speed of the 6 pumps);
b. pressure setting, pressure sensor 16 range;
c. the motor turns;
d. a high pressure alarm value;
e. a low pressure alarm value;
f. acceleration and deceleration time;
g. a communication parameter.
Still other auxiliary parameters are selected according to requirements, and the system diagram is shown as 'figure 2'.
According to the novel water supply device, the frequency converter 3 is selected to be mounted with the permanent magnet motor 1, so that constant-pressure water supply is realized, and the mounted product is compact in structure, stable in performance and more energy-saving; the permanent magnet motor 1 is small in size, high in output power, high in starting torque, low in failure rate and reliable in operation, has impact force on a power grid, and is a substitute product of a common pump.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A permanent magnet frequency conversion energy-saving pump comprises a permanent magnet motor (1), a frequency converter fixing plate (2), a frequency converter (3), a fixing bolt (4), a pump head (5), a shell (6), an impeller (7), a base (8), a motor frame (9), a shaft (10) and a flange (11); the method is characterized in that: one side fixed mounting of permanent-magnet machine (1) has converter fixed plate (2), there is converter (3) through fixing bolt (4) fixed mounting on converter fixed plate (2), permanent-magnet machine (1) fixed mounting is on motor frame (9), and the output shaft of permanent-magnet machine (1) passes through motor frame (9) and is connected with pump head (5), the one end at shell (6) is installed in pump head (5), the inside parallel arrangement of shell (6) has two impellers (7), and two impellers (7) form sealed chamber through axle (10) fixed mounting in shell (6).
2. The permanent magnet frequency conversion energy-saving pump according to claim 1, characterized in that: the power supply connected with the permanent magnet motor (1) is a three-phase five-wire power supply.
3. The permanent magnet frequency conversion energy-saving pump according to claim 1, characterized in that: the number of the fixing bolts (4) is four, and the fixing bolts are uniformly distributed at four corners of the frequency converter (3).
4. The permanent magnet frequency conversion energy-saving pump according to claim 1, characterized in that: the shell (6) is fixedly installed on the base (8), and flanges (11) are arranged at two ends of the base (8).
5. The permanent magnet frequency conversion energy-saving pump according to claim 4, characterized in that: one end of the flange (11) is communicated with the inside of the shell (6), and the other end of the flange is in butt joint with the inlet and the outlet of the outer pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921692482.6U CN210686341U (en) | 2019-10-11 | 2019-10-11 | Permanent magnet frequency conversion energy-saving pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921692482.6U CN210686341U (en) | 2019-10-11 | 2019-10-11 | Permanent magnet frequency conversion energy-saving pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210686341U true CN210686341U (en) | 2020-06-05 |
Family
ID=70895261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921692482.6U Active CN210686341U (en) | 2019-10-11 | 2019-10-11 | Permanent magnet frequency conversion energy-saving pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210686341U (en) |
-
2019
- 2019-10-11 CN CN201921692482.6U patent/CN210686341U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102709945B (en) | Energy-storage wind power generation system with squirrel-cage generator | |
| CN206595796U (en) | Spliced rotor permanent magnet synchronous motor | |
| CN107863866B (en) | High-power electromagnetic speed regulating motor | |
| CN210686341U (en) | Permanent magnet frequency conversion energy-saving pump | |
| CN201113716Y (en) | Large-capacity synchronizing generator brushless exciter | |
| CN110061614A (en) | Generator-side converter wear harmonic suppressing method, system and the medium of 18 phase direct-drive permanent magnet wind power generators | |
| CN201118394Y (en) | Multi-power three-phase energy-saving electromotor | |
| CN113541431A (en) | Permanent magnet synchronous motor capable of replacing speed reducer | |
| CN201515278U (en) | digital motor | |
| CN210536436U (en) | Medium frequency doubling generator set | |
| CN210898826U (en) | Brushless motor convenient to heat dissipation | |
| CN203441776U (en) | Novel EC water pump | |
| CN207583644U (en) | A kind of air cooling blower fan | |
| CN218771441U (en) | Permanent-magnet energy-saving submersible sewage pump with integrated pump | |
| CN217539023U (en) | Water-cooling noise-reduction reluctance electric pump | |
| CN204216740U (en) | A kind of pump variable-frequency motor | |
| CN215498692U (en) | Permanent magnet synchronous motor capable of replacing speed reducer | |
| CN215772736U (en) | Intelligent integrated motor with built-in battery | |
| CN215772734U (en) | Intelligent integrated motor with alternating current input | |
| CN219592177U (en) | Permanent magnet synchronous submersible motor | |
| Ugale et al. | Effective energy conservation for the agricultural sector using line start permanent magnet synchronous motors | |
| CN209912724U (en) | Novel intelligent capacitor | |
| CN213461286U (en) | Novel mixed rotor dual-frequency motor structure | |
| CN210297478U (en) | Single-phase non-inductive permanent magnet synchronous motor | |
| CN218648690U (en) | Wear-resistant single-phase low-voltage asynchronous motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |