CN101639059A - Electric pump - Google Patents

Electric pump Download PDF

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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
Authority
CN
China
Prior art keywords
rotor
stator
pump
cavity
support
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.)
Pending
Application number
CN200910184309A
Other languages
Chinese (zh)
Inventor
刘国海
滕成龙
施爱平
廖志凌
孙晓军
许李俊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu University
Original Assignee
Jiangsu University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiangsu University filed Critical Jiangsu University
Priority to CN200910184309A priority Critical patent/CN101639059A/en
Publication of CN101639059A publication Critical patent/CN101639059A/en
Pending legal-status Critical Current

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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

Motor-drive pump
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.
Pump 10 of the present invention can have two kinds of mounting structures, and a kind of is that impeller blade 9 with pump 10 directly is fixedly installed on the internal surface of rotor 8, drives pumps 10 actions by rotor 8 and impeller blade 9.Another kind is according to the requirement of FLUID TRANSPORTATION impeller blade 9 not to be installed, and directly the internal surface at rotor 8 is provided with screw thread, and this screw thread just constitutes pump 10, realizes the function of pump by rotor 8 and the screw thread on it.
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).
CN200910184309A 2009-08-12 2009-08-12 Electric pump Pending CN101639059A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (6)

* Cited by examiner, † Cited by third party
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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Open date: 20100203