CN101639059A - Electric pump - Google Patents
Electric pump Download PDFInfo
- Publication number
- CN101639059A CN101639059A CN200910184309A CN200910184309A CN101639059A CN 101639059 A CN101639059 A CN 101639059A CN 200910184309 A CN200910184309 A CN 200910184309A CN 200910184309 A CN200910184309 A CN 200910184309A CN 101639059 A CN101639059 A CN 101639059A
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- rotor
- stator
- pump
- cavity
- support
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Abstract
The invention discloses an electric pump which can realize the fluid delivery. A base, a stator and a rotor are respectively provided with a cavity, the stator is fixed in the cavity of the base, therotor is positioned in the cavity of the stator, a stator winding is wound onto the stator, a frequency conversion controller is connected with the stator winding, a permanent magnetic material is attached or embedded on the outer surface of the rotor, and the cavity of the rotor is the working cavity of a pump. The invention realizes the integration of an electric motor and the pump without an intermediate drive mechanism and a pump casing, saves the material because the power of the pump is provided by the stator of the electric motor, improves the energy utilization ratio as the rotor is made of the permanent magnetic material without the rotor excitation and the fan cooling, has better sealing, safety without leakage, simple overall structure, and small installation space, can be convenient for adjusting the flow capacity and the delivery lift through the electrical control, and is easy to realize the remote unmanned control.
Description
Technical field
The present invention relates to the pump field, refer in particular to a kind of motor-drive pump, be applicable to that installing space is little, energy-conservation, nothing is revealed and the FLUID TRANSPORTATION of low noise.
Background technique
The power of present all kinds of pumps all is to be provided by intermediate transmission mechanism by external motor, not only complex structure, installation volume is big, cost of equipment is higher and capacity usage ratio is low, the heat dissipation problem that also has fluid leakage and rotor, and the flow of pump and lift are regulated or are realized by outlet loop, need special-purpose frequency conversion equipment, can cause the high and low problem of capacity usage ratio of cost of equipment equally.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the present invention combines the working principle of motor and pump, provides a kind of with motor and the integrated motor-drive pump of pump.
The technical solution used in the present invention is: support, stator and rotor respectively have an inner chamber, stator is fixed in the inner chamber of support, rotor is arranged in the inner chamber of stator, staor winding is wound on the stator, frequency-variable controller connects staor winding, the permanent-magnet material face pastes or is embedded on the rotor outer surface, and the inner chamber of rotor is the active chamber of pump.
Connecting head is installed at the two ends of support, and support is installed outlet box outward, and staor winding connects frequency-variable controller one end, another termination power of frequency-variable controller by outlet box; Two ends of rotor is installed on the support by stuffing box bearing.
The impeller blade of pump is fixedly installed on the internal surface of rotor.
Described pump is made of the screw thread of the internal surface setting of rotor.
The invention has the beneficial effects as follows:
1, realized the integrated of motor and pump, pump directly provides power by motor stator, does not need intermediate transmission mechanism and pump case, has saved material.
2, rotor adopts permanent-magnet material to make, and does not need rotor-exciting and cooling fan, has improved capacity usage ratio.
3, with the active chamber of internal rotor as pump, good seal, safety does not have leakage; Equipment overall structure is simple, and installing space is little, and cost is low.
4, can regulate flow and lift easily by electrical control, realize long-range unattendedly easily, can realize that to the fluid of hypertoxic, inflammable and explosive, perishable and easy pollution and the conveying of other precious fluids, perhaps being used to has in the working environment of specific (special) requirements.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
Fig. 1 is a structure cross-sectional schematic of the present invention.
Fig. 2 is the A-A sectional view of Fig. 1.
Among the figure: 1. connecting head; 2. frequency-variable controller; 3. outlet box; 4. support; 5. stator; 6. staor winding; 7. stuffing box bearing; 8. rotor; 9. impeller blade; 10. pump.
Embodiment
As shown in Figure 1, the present invention includes the stator 5 and the rotor 8 of support 4, pump 10, motor, wherein, support 4, stator 5 and rotor 8 respectively have an inner chamber, and stator 5 is fixed in the inner chamber of support 4, and rotor 8 is arranged in the inner chamber that stator 5 forms.Staor winding 6 is wound on the stator 5.Outlet box 3 and frequency-variable controller 2 are installed outside support 4, staor winding 6 connects an end of frequency-variable controller 2 by outlet box 3, another termination power of frequency-variable controller 2, control the operating current frequency and the operating current amplitude of motor-drive pump by frequency-variable controller 2, thereby the rotating speed and the torque of control rotor 8 reach the purpose of regulating motor-drive pump lift and flow.The two ends of rotor 8 are installed on the support 4 by stuffing box bearing 7.The permanent-magnet material face is pasted or is embedded on the outer surface of rotor 8, with the inner chamber of this rotor 8 active chamber as pump 10.
During use, power-on, required lift and flow are set in requirement according to FLUID TRANSPORTATION, calculate and control corresponding work current amplitude and frequency are come the lift of control pump 10 by controller, come control flow rate by regulating the operating current frequency, the electric current of alternation makes staor winding 6 produce alternating magnetic fields and acts on the rotor 8, electric current is converted into kinetic energy, make rotor 8 produce torques and rotate by certain speed, the working state of control pump 10 realizes low-pressure fluid is constantly delivered to the purpose of high-pressure area.
Claims (4)
1. motor-drive pump, the stator (5) and the rotor (8) that comprise support (4), pump (10), motor, it is characterized in that: support (4), stator (5) and rotor (8) respectively have an inner chamber, stator (5) is fixed in the inner chamber of support (4), rotor (8) is arranged in the inner chamber of stator (5), staor winding (6) is wound on the stator (5), frequency-variable controller (2) connects staor winding (6), the permanent-magnet material face pastes or is embedded on rotor (8) outer surface, and the inner chamber of rotor (8) is the active chamber of pump (10).
2. motor-drive pump according to claim 1, it is characterized in that: connecting head (1) is installed at the two ends of support (4), the outer outlet box (3) of installing of support (4), staor winding (6) connects frequency-variable controller (2) one ends, another termination power of frequency-variable controller (2) by outlet box (3); Rotor (8) two ends are installed on the support (4) by stuffing box bearing (7).
3. motor-drive pump according to claim 1 is characterized in that: the impeller blade (9) of pump (10) is fixedly installed on the internal surface of rotor (8).
4. motor-drive pump according to claim 1 is characterized in that: pump (10) is made of the screw thread of the internal surface setting of rotor (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910184309A CN101639059A (en) | 2009-08-12 | 2009-08-12 | Electric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910184309A CN101639059A (en) | 2009-08-12 | 2009-08-12 | Electric pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101639059A true CN101639059A (en) | 2010-02-03 |
Family
ID=41614191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910184309A Pending CN101639059A (en) | 2009-08-12 | 2009-08-12 | Electric pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101639059A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10914155B2 (en) | 2018-10-09 | 2021-02-09 | U.S. Well Services, LLC | Electric powered hydraulic fracturing pump system with single electric powered multi-plunger pump fracturing trailers, filtration units, and slide out platform |
| US10927802B2 (en) | 2012-11-16 | 2021-02-23 | U.S. Well Services, LLC | System for fueling electric powered hydraulic fracturing equipment with multiple fuel sources |
| US10934824B2 (en) | 2012-11-16 | 2021-03-02 | U.S. Well Services, LLC | System for reducing vibrations in a pressure pumping fleet |
| CN112727779A (en) * | 2020-11-20 | 2021-04-30 | 龙镎 | Low-noise shaftless pump with compact structure |
| US11542786B2 (en) | 2019-08-01 | 2023-01-03 | U.S. Well Services, LLC | High capacity power storage system for electric hydraulic fracturing |
| US11728709B2 (en) | 2019-05-13 | 2023-08-15 | U.S. Well Services, LLC | Encoderless vector control for VFD in hydraulic fracturing applications |
-
2009
- 2009-08-12 CN CN200910184309A patent/CN101639059A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10927802B2 (en) | 2012-11-16 | 2021-02-23 | U.S. Well Services, LLC | System for fueling electric powered hydraulic fracturing equipment with multiple fuel sources |
| US10934824B2 (en) | 2012-11-16 | 2021-03-02 | U.S. Well Services, LLC | System for reducing vibrations in a pressure pumping fleet |
| US10914155B2 (en) | 2018-10-09 | 2021-02-09 | U.S. Well Services, LLC | Electric powered hydraulic fracturing pump system with single electric powered multi-plunger pump fracturing trailers, filtration units, and slide out platform |
| US11728709B2 (en) | 2019-05-13 | 2023-08-15 | U.S. Well Services, LLC | Encoderless vector control for VFD in hydraulic fracturing applications |
| US11542786B2 (en) | 2019-08-01 | 2023-01-03 | U.S. Well Services, LLC | High capacity power storage system for electric hydraulic fracturing |
| CN112727779A (en) * | 2020-11-20 | 2021-04-30 | 龙镎 | Low-noise shaftless pump with compact structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20100203 |