CN2472407Y - Energy saver for local power network - Google Patents
Energy saver for local power network Download PDFInfo
- Publication number
- CN2472407Y CN2472407Y CN 01214760 CN01214760U CN2472407Y CN 2472407 Y CN2472407 Y CN 2472407Y CN 01214760 CN01214760 CN 01214760 CN 01214760 U CN01214760 U CN 01214760U CN 2472407 Y CN2472407 Y CN 2472407Y
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- output
- transformer
- input
- frequency
- phase inverter
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Abstract
The utility model provides an energy saving device used for the power network of oil well in the oil field, which comprises a twelve-impulse transformer B1, a full bridge rectifier, a current limiting filter, a three-phase inverter bridge with the function of timing frequency modulation output, a high frequency reactor and an output transformer B2. The output of the transformer is connected with the input of the full bridge rectifier; the output of the rectifier is connected with the input of the current limiting filter; the output of the current limiting filter is connected with the input of the three-phase inverter bridge; the output of the tree-phase inverter bridge is connected with the end of the high frequency reactor; the other end of the high frequency reactor is connected with the input of the output transformer. The utility model has the advantages of obvious energy saving, convenient and neat adjustment and control, which is particularly proper for the local power network of the oil well in the oil field to employ.
Description
The utility model relates to a kind of electrical network power-saving technology.What be particularly related to is the energy saver that the oil well electrical network in oil field is used.
In oil exploitation, adopt the electrodynamic type oil pumper to extract the down-hole oil usually.For improving pumping efficiency, should be according to the corresponding rotating speed of regulating oil pumper of the consistency change situation of oil reservoir oily.At present the oil field use by oily machine, adopt always and change belt pulley mode degree of turning, the major defect of existence has:
1, speed adjustable range is narrow, generally has only three kinds of speed (12,9,6 times/per minute) adjustable, can not dynamically satisfy the needs of oil pumping, and the replacing belt pulley that need stop production will change speed the time.
2, can not change the jig frequency number of oil pumper according to the variation of down-hole situation at any time, make the row's of confession relation bad, have a strong impact on the output of opening of oil.
3, for heavy oil wells, need low speed to take out and relate to, and oil pumper has not had more that low speed is adjustable, causes oil to take out to come up, perhaps output reduces.
In addition, even more serious is because the oil well distribution is vast, and distance is far away, and management difficulty is big, and the phenomenon that often has the electrical network electric energy illegally to be used takes place, and the electric energy expense of oil well production is risen greatly.
The purpose of this utility model is to overcome the deficiencies in the prior art, requires for this local power net of oilfield provides a kind of speed governing that can satisfy oil pumper, can avoid the electrical network electric energy by the energy saver of improper use again.
The utility model purpose be by the common frequency power network power supply is carried out AC
1---DC---AC
2Conversion, and in this conversion process, make voltage and frequency can both by the time period of setting regularly variable-frequency variable-voltage carry out disturbance and export that this technical scheme realizes.The local power net energy saver of realizing this conversion process is by 12 pulsating wave transformer B
1, full-bridge rectifier, limiting filter, have regularly three phase inverter bridge, radio-frequency rector, the output transformer B of FM output
2Form, wherein, the input of the output termination full-bridge rectifier of transformer, the input of the output termination limiting filter of rectifier, the input of the output termination three phase inverter bridge of limiting filter, one end of the output termination radio-frequency rector of three phase inverter bridge, the input of another termination output transformer of radio-frequency rector.
Operation principle of the present utility model is as follows:
During use common frequency power network is inserted the 12 pulsating wave transformer B1 of this device, handle back output DC direct current through limiting filter, realization is transformed to the first order conversion (AC1-DC) of 0 hertz of power supply of direct current by 50 hertz of power frequencies.The three phase inverter bridge of being made up of IGBT is realized second level conversion (DC---AC again
2), the brachium pontis of inverter bridge can be made of many IGBT series and parallels.The timing FM output that has regularly a three phase inverter bridge of FM output can establish in addition specially one regularly the frequency modulation follower realize, also can utilize the CPU of inverter bridge self to realize regularly FM output.The relation that is directly proportional with voltage by frequency, carry out regularly increasing at times the disturbance treatment of frequency, frequency reducing and constant frequency according to the set period of reserving, its output voltage is an alternating voltage waveform, obtains all adjustable AC sine wave of frequency and voltage after radio-frequency rector filtering, again through output transformer B
2Output is made for the use of oil well local area network (LAN) behind the isolation boosting.Because the frequency of the power supply by this unit feeding oil well local area network (LAN) changes, and common power consumption equipment all requires 50 hertz power frequency supply, so can effectively prevent industrialization stealing to the oil well electrical network; Carry out disturbance at times and regularly rated frequency output rightly, can guarantee oil field oil production not reason disturbance and the underproduction; Also solve the wide-range-timing of oil pumper preferably by the self-adapting frequency conversion transformation function of this device, realized energy-saving run.
The utility model has the advantages that can improve to take out to relate to efficient, energy-saving effect is obvious, the reliability height, and it is convenient, flexible to regulate control.Also can prevent non-legal electricity consumption effectively.Being particularly suitable for this local power net of oilfield uses.
Below in conjunction with drawings and Examples the utility model is done a step and describe in detail, but content of the present utility model is not limited within the present embodiment and holds.
The structured flowchart of Fig. 1 present embodiment
The electrical block diagram of Fig. 2 present embodiment
Fig. 3 is the curve chart of variable-frequency variable-voltage at times
Referring to Fig. 1,2, local power net energy saver of the present utility model is by 12 pulsating wave transformer B
1, full-bridge rectifier D, limiting filter XC, have regularly three phase inverter bridge P, radio-frequency rector L and the output transformer B of FM output
2Form, wherein, transformer B
1The input of output termination full-bridge rectifier D, the input of the output termination limiting filter XC of rectifier D, the input of the output termination three phase inverter bridge P of limiting filter XC, the end of the output termination radio-frequency rector L of three phase inverter bridge P, another termination output transformer B of radio-frequency rector L
2Input.After the power supply of common frequency power network inserts this device, by 12 pulsating wave transformer B
1Handle with full-bridge rectifier D, through current limliting filtering output DC direct current, that has realized the first order is transformed to 0 hertz of power conversion of direct current by 50 hertz of power frequencies.To import electrical network and energy-saving electric power simultaneously isolates.Second level conversion DC---AC
2Conversion is to realize by the three phase inverter bridge that IGBT forms, the brachium pontis of inverter bridge can be made of many IGBT series and parallels, the relation that three phase inverter bridge is directly proportional with voltage by frequency, its output voltage is the alternating voltage waveform of SPWM during by SPWM wave mode controlling and driving, after handling, radio-frequency rector obtains frequency and all adjustable AC sine wave of voltage, again through output transformer B
2Exporting to the oil well electrical network behind the isolation boosting uses.It is in the control central processing unit CPU at three-phase inverter that its disturbance function is executed in the example in this practicality, increases that at times timing increases frequently, frequency reducing and constant frequency output function realize.Fig. 3 has provided the curve chart of variable-frequency variable-voltage at times, in 24 hours, generally low-frequency excitation output by day, be the output of rated frequency constant frequency evening, rise during scramble and fall time X
1, X
2Can set, total scramble time X also can set.As the case may be, adjust in good time, just can effectively prevent the non-legal electrical phenomena of using of industrialization.
Claims (1)
1. energy saver that local power net is used is by 12 pulsating wave transformer B
1, full-bridge rectifier, limiting filter, have regularly three phase inverter bridge, radio-frequency rector, the output transformer B of FM output
2Form, wherein, the input of the output termination full-bridge rectifier of transformer, the input of the output termination limiting filter of rectifier, the input of the output termination three phase inverter bridge of limiting filter, one end of the output termination radio-frequency rector of three phase inverter bridge, the input of another termination output transformer of radio-frequency rector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01214760 CN2472407Y (en) | 2001-04-18 | 2001-04-18 | Energy saver for local power network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01214760 CN2472407Y (en) | 2001-04-18 | 2001-04-18 | Energy saver for local power network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2472407Y true CN2472407Y (en) | 2002-01-16 |
Family
ID=33633460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01214760 Expired - Fee Related CN2472407Y (en) | 2001-04-18 | 2001-04-18 | Energy saver for local power network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2472407Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101297457B (en) * | 2006-01-20 | 2011-08-10 | Abb技术有限公司 | A converter |
| CN102355155A (en) * | 2011-10-13 | 2012-02-15 | 无锡威华电焊机制造有限公司 | Welding inverter for steel truss |
-
2001
- 2001-04-18 CN CN 01214760 patent/CN2472407Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101297457B (en) * | 2006-01-20 | 2011-08-10 | Abb技术有限公司 | A converter |
| CN102355155A (en) * | 2011-10-13 | 2012-02-15 | 无锡威华电焊机制造有限公司 | Welding inverter for steel truss |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |