CN202167997U - Energy-saving purifying power supply with energy feedback function for beam pumping unit - Google Patents
Energy-saving purifying power supply with energy feedback function for beam pumping unit Download PDFInfo
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- CN202167997U CN202167997U CN2011202786877U CN201120278687U CN202167997U CN 202167997 U CN202167997 U CN 202167997U CN 2011202786877 U CN2011202786877 U CN 2011202786877U CN 201120278687 U CN201120278687 U CN 201120278687U CN 202167997 U CN202167997 U CN 202167997U
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Abstract
The utility model discloses an energy-saving purifying power supply with energy feedback function for a beam pumping unit, comprising a voltage-stabilizing and frequency-stabilizing circuit; a feedback circuit is arranged between the voltage-stabilizing and frequency-stabilizing circuit and the pumping unit; and the output terminal of the feedback circuit is connected with electric equipment. By adopting the technical scheme, the energy feedback circuit is additionally arranged in a power system so that the starting current of the motor is reduced to 1/3 to 1/4 of the original starting current; the starting torque of the motor is greatly reduced; the controlling function of the motor on soft starting and soft stopping is realized; the problem that 'a large horse pulls a small carriage' can be well solved, the mechanical impact on motor, gearbox and pumping unit can be avoided, and the system has the advantages of stable speed, reliable performance, small impact on power network, and the like.
Description
Technical field:
The utility model relates to a kind of beam pumping unit energy-saving and purifying power supply that has energy feedback function.
Background technology:
The oil-field oil pumper load is the time varying load of unique characteristics, and the branch of dynamic and static load characteristic is arranged.The starting current of the motor of starting initial condition oil-field oil pumper is very high; The starting torque of dragging motor is 3～4 times of oil pumper actual loading; Even bigger, initial condition requires the starting current of dragging motor just very high so, so starting power is the first element of oil pumper matching motor; When matching the motor of oil pumper, its rated power must be greater than starting power.Must mate not goodly when starting power is suitable for then bearing power, running load power is all much smaller than the rated power of motor, promptly so-called " low load with strong power " phenomenon.Superfluous oil pumping ability makes the idle extraction time of oil pumper increase, and causes the grid electricity fee cost of oil mining high, and energy waste is very serious.
The reason that produces the problems referred to above is because the starting current of motor is too big; Electric motor starting moment is big; Cause motor hard start, hard stop; Need dispose motor according to starting current and starting torque size, but the electric current of oil pumper when being in operate as normal is significantly smaller than starting current, causes the problem of " low load with strong power ".
In addition, power supply of the prior art is not provided with feedback circuit, but brake resistance and discharge resistance; The generating of falling that produces during with the oil pumper backhaul consumes; This just causes the waste of energy, but also needs to solve the heat dissipation problem in the electronic box, increases the optional equipment of heat transmission.
Summary of the invention:
The purpose of the utility model is in order to overcome the shortcoming of above-mentioned prior art, a kind of beam pumping unit energy-saving and purifying power supply that has energy feedback function to be provided.
For realizing above-mentioned purpose, the technical scheme that the utility model provides is: a kind of beam pumping unit energy-saving and purifying power supply that has energy feedback function, include the voltage stabilization and frequency stabilization circuit, and between voltage stabilization and frequency stabilization circuit and oil pumper, be provided with feedback circuit.
The output of feedback circuit is connected with power consumption equipment.
After adopting technique scheme; Installed the energy feedback circuit in the power-supply system additional, the electric motor starting electric current has been reduced to original 1/3～1/4, the starting torque of motor reduces greatly; Electric machine soft starting, soft stop controlled function have been realized; Solved so-called " low load with strong power " problem preferably, avoided motor, gearbox and oil pumper are caused mechanical shock, system possess speed steadily, dependable performance, electrical network is impacted advantages such as little.
Description of drawings:
Fig. 1 is the structure chart that the utility model has the beam pumping unit power supply of energy feedback function.
Embodiment:
Combine accompanying drawing to set forth the utility model in detail at present:
The beam pumping unit energy-saving and purifying power supply that has energy feedback function of present embodiment; Include voltage stabilization and frequency stabilization circuit 1; Between voltage stabilization and frequency stabilization circuit 1 and oil pumper 2, be provided with feedback circuit 3, the output of feedback circuit 3 is connected with heating/dehumidifier/power consumption equipments such as thermostatic equipment/lighting device 4.
In order to solve " falling to generate electricity " problem, on the basis of regenerative braking method, oil-field oil pumper energy-saving and purifying power supply is transformed energy feedback unit, and the regenerative feedback energy has been realized using on the spot.The energy-saving and purifying power supply has added an IGBT active inverter in addition; The universal frequency converter that is adopted in the oil pumper frequency conversion modification scheme before replacing adds the method for dynamic braking resistance and brake unit; The regenerated energy that produces the electric power generation state feeds back to electrical network and power device (for example air-conditioning equipment/lighting device etc.) after inverter changes alternating current into.The oil field environment is often very poor, and have rainy, snow, weather conditions such as dust storm, dewfall and day and night temperature are big, the oil pumper operational environment is special, and heating, dehumidifier and register must be installed in cabinet.And the power supply of the heating that is increased, dehumidifier and thermostat can provide electric power through the active inverter of feedback unit.Simultaneously, feedback unit can also provide electric power for the oil-field oil pumper system provides illuminator, as the need of night illumination.So, both for the energy-saving and purifying supply unit provides a good running environment, will improve efficient, useful life and the economic benefit of energy-saving and purifying supply unit again greatly.
The energy-saving and purifying power supply that has installed energy feedback unit additional is applicable to and exchanges 50HZ that the asynchronous motor of rated voltage 380V and permanent magnet synchronous motor are realized soft start, soft stop and speed governing operation process control.Have starting current little (starting torque is little), speed steadily, dependable performance and electrical network impacted advantages such as little, solved the problem of " low load with strong power " preferably; The user can be according to the liquid level of oil well, stroke, speed and the production fluid amount that pressure is confirmed oil pumper, and energy-conservation of consumption reduction improves pump efficiency; Equipment is reduced wear, increase the service life, be implemented in the automatic operating under the maximum power save mode.
The above; Any those of ordinary skill in the art; Do not breaking away under the utility model technical scheme scope situation, all the method for above-mentioned announcement capable of using and technology contents are made many possible changes and modification to the utility model technical scheme, or are revised as the equivalent embodiment of equivalent variations.So every content that does not break away from the utility model technical scheme, the equivalence of doing according to shape, structure and the principle of the utility model changes, and all should be covered by in the protection range of the utility model.
Claims (2)
1. a beam pumping unit energy-saving and purifying power supply that has energy feedback function includes the voltage stabilization and frequency stabilization circuit, it is characterized in that: between voltage stabilization and frequency stabilization circuit and oil pumper, be provided with feedback circuit.
2. a kind of beam pumping unit energy-saving and purifying power supply that has energy feedback function according to claim 1, it is characterized in that: the output of feedback circuit is connected with power consumption equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202786877U CN202167997U (en) | 2011-08-02 | 2011-08-02 | Energy-saving purifying power supply with energy feedback function for beam pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202786877U CN202167997U (en) | 2011-08-02 | 2011-08-02 | Energy-saving purifying power supply with energy feedback function for beam pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202167997U true CN202167997U (en) | 2012-03-14 |
Family
ID=45803799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202786877U Expired - Fee Related CN202167997U (en) | 2011-08-02 | 2011-08-02 | Energy-saving purifying power supply with energy feedback function for beam pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202167997U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108879908A (en) * | 2017-05-12 | 2018-11-23 | 中国石油化工股份有限公司 | A kind of recycling pumping unit falls the energy recovery utilizing system of generated energy |
-
2011
- 2011-08-02 CN CN2011202786877U patent/CN202167997U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108879908A (en) * | 2017-05-12 | 2018-11-23 | 中国石油化工股份有限公司 | A kind of recycling pumping unit falls the energy recovery utilizing system of generated energy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120314 Termination date: 20140802 |
|
| EXPY | Termination of patent right or utility model |