CN201963509U - Power assisting device for rodless reciprocating electric submersible pumps - Google Patents
Power assisting device for rodless reciprocating electric submersible pumps Download PDFInfo
- Publication number
- CN201963509U CN201963509U CN2010206417646U CN201020641764U CN201963509U CN 201963509 U CN201963509 U CN 201963509U CN 2010206417646 U CN2010206417646 U CN 2010206417646U CN 201020641764 U CN201020641764 U CN 201020641764U CN 201963509 U CN201963509 U CN 201963509U
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- electric motor
- linear electric
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Abstract
The utility model relates to a power assisting device for rodless reciprocating electric submersible pumps. A spring spindle is arranged on one end of a linear electric motor rotator opposite to the end where an output shaft is arranged, a supporting seat of the spring spindle is arranged inside a casing of a linear electric motor, a spring casing is arranged outside the supporting seat, the end of the linear electric motor casing is in seal connection with the surface of the spring casing, the spring spindle inside the spring casing is provided with a retaining board, and an energy storing spring sleeved on the spring spindle is arranged between the retaining board and the end of the spring casing. The no-load return stroke of the linear electric motor enables the energy storing spring to be compressed to store energy, and during energy release of the energy storing spring, the energy storing spring can lead the linear electric motor to be started rapidly, and the released energy can be superposed to an energy exerting stage of the liner electric motor, thereby obviously improving working efficiency of the linear electric motor and further improving efficiency of the power assisting device for rodless reciprocating electric submergible pumps.
Description
Technical field
The utility model belongs to no bar reciprocating submersible electric pump, particularly relates to a kind of power assisting device that does not have the bar reciprocating submersible electric pump
Background technique
In recent years, the helical rotor pump oil production equipment is developed rapidly, and this equipment can remedy the deficiency of " machine of kowtowing ", is applicable to middle shallow well, stripper well, outlying oil well, thick oil well.But in high-temperature oil well, the heat resistance of helical rotor pump rubber components but can not adapt to.In addition, the screw pump rotating speed can only be below 300/ minute, and it is supporting with it also to lack suitable low-speed oil submersible motor at present, and therefore existing helical rotor pump is the stock helical rotor pump.
At present, developing a kind of no bar reciprocating submersible electric pump both at home and abroad, dragging with the straight line oil-submersible motor, compare with the stock screw pump have energy-conservation (more than 20%), light, avoid stock wearing and tearing and prolonged the obvious advantage of service life of equipment.But there is the lower technical problem of efficient in no bar reciprocating submersible electric pump, for example at well depth 1000m, and 5 cubic metres/day of flows, actual work done is less than 1kW, and input power is 6kW.
Summary of the invention
The purpose of this utility model is to disclose a kind of power assisting device that does not have the bar reciprocating submersible electric pump in order to improve the no lower technical problem of bar reciprocating submersible electric pump efficient.
The utility model is taked following technological scheme for achieving the above object: this power assisting device comprises no bar reciprocating submersible electric pump body, feature is, linear motor rotor is provided with spring born work arbor with respect to the other end of output shaft, be provided with the supporting base of spring born work arbor in the housing of linear electric motor, the supporting base outside is provided with spring housing, the end of linear electric motor housing engages with the spring housing face seal, spring born work arbor in the spring housing is provided with baffle plate, is provided with the energy-storaging spring that is set in spring born work arbor between the end of this baffle plate and spring housing.
The beneficial effects of the utility model and advantage are: the linear electric motor operation stroke of no bar reciprocating submersible electric pump can be divided into following 6 stages, and stroke 1 comprises that frequency variator is transferred to low frequency, switched phase sequence (counter-rotating) by high frequency; Stroke 2, motor add that the electric current of voltage rises to the transitional period of rating value, draw about 0.42 second according to time constant of electric motors Ji Suan; Stroke 3, linear electric motor are exerted oneself the phase, and for example a straight line motor is long 0.4 meter, contains 6 pairs of utmost points (12 utmost points), and 5 cycle electric currents need 0.2 second through a pair of utmost point, and therefore 6 pairs of utmost points need 1.2 seconds, and promptly this linear electric motor phase of exerting oneself is 1.2 seconds; Stroke 4, frequency variator transfers high frequency to by low frequency, switches phase sequence (counter-rotating); Stroke 5, similar to stroke 2; Stroke 6 is because of the highest 50 weeks of power frequency, so the time is 1/10th of stroke 3.Can see that from above analysis linear electric motor are real actings at stroke 3 only, linear electric motor change the motion of forward oil pumping full load from stroke 2 beginnings into by unloaded reversing motion, except overcoming nominal operation moment, must overcome the acceleration moment of inertia that transmission device produces, and it is little just in time to catch up with linear electric motor starting torque spy at this moment, the weak link that electric current is especially big, therefore starting is very difficult.Energy-storaging spring of the present utility model is to utilize linear electric motor to make it compress energy storage in the unloaded backhaul of stroke 4, in time help the linear electric motor quick starting and be superimposed on stroke 4 and release energy at linear electric motor stroke 2 energy-storaging springs, the working efficiency of linear electric motor is obviously improved, and then improved the efficient of no bar reciprocating submersible electric pump.
Description of drawings
Fig. 1 is the utility model example structure partial cutaway schematic.
Mark among the figure: 1 linear electric motor housing, 2 stators, 3 rotors, 4 output shafts, 5 spring born work arbors, 6 supporting bases, 7 baffle plates, 8 spring housings, 9 energy-storaging springs.
Embodiment
Further specify the utility model below in conjunction with embodiment and accompanying drawing thereof.
Embodiment as shown in the figure, this power assisting device comprises no bar reciprocating submersible electric pump body, and feature is, and the fundamental composition of linear electric motor comprises linear electric motor housing 1, stator 2 and rotor 3, and rotor 3 is provided with spring born work arbor 5 with respect to the other end of output shaft 4.Be provided with the supporting base 6 of spring born work arbor 5 in the linear electric motor housing 1, supporting base 6 outsides are provided with spring housing 8, and the end of linear electric motor housing 1 engages with spring housing 8 face seals.Spring born work arbor in the spring housing 8 is provided with baffle plate 7, is provided with the energy-storaging spring 9 that is set in spring born work arbor 5 between the end of this baffle plate 7 and spring housing 8.The output shaft 4 of linear motor rotor is in transmission connection in submersible electric pump.
Claims (1)
1. power assisting device that does not have the bar reciprocating submersible electric pump, comprise no bar reciprocating submersible electric pump body, it is characterized in that: linear motor rotor is provided with spring born work arbor with respect to the other end of output shaft, be provided with the supporting base of spring born work arbor in the housing of linear electric motor, the supporting base outside is provided with spring housing, the end of linear electric motor housing engages with the spring housing face seal, spring born work arbor in the spring housing is provided with baffle plate, is provided with the energy-storaging spring that is set in spring born work arbor between the end of this baffle plate and spring housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206417646U CN201963509U (en) | 2010-12-03 | 2010-12-03 | Power assisting device for rodless reciprocating electric submersible pumps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206417646U CN201963509U (en) | 2010-12-03 | 2010-12-03 | Power assisting device for rodless reciprocating electric submersible pumps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201963509U true CN201963509U (en) | 2011-09-07 |
Family
ID=44526045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206417646U Expired - Lifetime CN201963509U (en) | 2010-12-03 | 2010-12-03 | Power assisting device for rodless reciprocating electric submersible pumps |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201963509U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102486168A (en) * | 2010-12-03 | 2012-06-06 | 天津荣亨集团股份有限公司 | Power assisting device of rodless reciprocating electrical submersible pump |
-
2010
- 2010-12-03 CN CN2010206417646U patent/CN201963509U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102486168A (en) * | 2010-12-03 | 2012-06-06 | 天津荣亨集团股份有限公司 | Power assisting device of rodless reciprocating electrical submersible pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Tianjin Lutai Petroleum Equipment Co., Ltd. Assignor: Tianjin Rongheng Group Co., Ltd. Contract record no.: 2012120000098 Denomination of utility model: Power assisting device of rodless reciprocating electrical submersible pump Granted publication date: 20110907 License type: Exclusive License Record date: 20121231 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110907 |
|
| CX01 | Expiry of patent term |