CN103248244A - Three-phase input single output electric desalting power supply - Google Patents
Three-phase input single output electric desalting power supply Download PDFInfo
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- CN103248244A CN103248244A CN2012100321130A CN201210032113A CN103248244A CN 103248244 A CN103248244 A CN 103248244A CN 2012100321130 A CN2012100321130 A CN 2012100321130A CN 201210032113 A CN201210032113 A CN 201210032113A CN 103248244 A CN103248244 A CN 103248244A
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Abstract
The invention aims to provide a three-phase input single output electric desalting power supply, the primary side of which is a three-phase input, and 100 percent of impedances are connected in the primary side of the three-phase circuits in series. The secondary side of the power supply is a three-phase output, different taps are arranged on the secondary high voltage winding, and the switch K1 is selected to select different output high voltages, so as to adapt to different crude oils. The three-phase high voltage is sent to three voltage doubling rectifying silicon stacks respectively, the positive poles of the three voltage doubling rectifying silicon stacks are connected with each other to form a positive pole, and the negative poles of the three voltage doubling rectifying silicon stacks are connected with each other to form a negative pole. Furthermore, the secondary side further comprises a group of three-phase 100 v measuring coil which measures actual output three-phase voltages respectively.
Description
Technical field
The invention belongs to crude oil electric dehydration, oil plant crude oil electric desalting field, particularly a kind of power source special for petroleum chemical industry crude oil electric desalting equipment.
Background technology
What crude oil electric dehydration and oil plant crude oil electric desalting all used at present is single-phase transformer, and namely single-phase input individual event output mainly contains the alternating current desalination transformer (patent No.: 97200623.0); The alterating and direct current desalination transformer (patent No.: 93246305.3); The high speed electro-desalting transformer (patent No.: 01201736.1), just each transformer is only used two-phase electricity (A, B phase or other two-phase), other once being out of use mutually, output is the two poles of the earth equally, earth electrode of a belt electrode, perhaps negative pole of a positive pole, along with oil field and oil plant are more and more higher to the requirement of utilization rate of equipment and installations, it is three-phase transformer that urgent hope changes present electric dehydration electro-desalting single-phase transformer, but also need with original single-phase load, thereby solve the problem of three-phase imbalance and the capacity that reduces higher level's transformer, especially under oil property situation worse and worse, electric dehydration electro-desalting transformer running current is also increasing, three-phase imbalance is also more and more serious, the load of upper level transformer is also increasing, three-phase is imported the such transformer of single-phase output and be can be good at addressing these problems, platform at sea particularly, because the used electricity of most offshore platforms is all sent out with generator, used offshore platform is higher to the requirement of three-phase equilibrium, do not allow to use powerful single-phase electric devices as the electric dehydrator transformer, originally in order to satisfy big like this single-phase electric devices, have to select bigger generating set for use, increased equipment investment.
Summary of the invention
The objective of the invention is to be to provide a kind of three-phase to import single-phase output electro-desalting power supply, its primary side is the three-phase input, all scurries in the loop of primary side three-phase and has connect 100% impedance.Secondary side is three-phase output, at the secondary high-pressure coil different taps is arranged, and selects different output high pressure by selector switch K1, to adapt to different crude oils.Three-phase high-voltage is delivered to three voltage multiplying rectifier silicon stacks respectively, and the positive pole of three voltage multiplying rectifier silicon stacks links to each other, and forms positive pole, and the negative pole of three voltage multiplying rectifier silicon stacks links to each other, and forms negative pole.Secondary side also has one group of three-phase 100V to measure coil in addition, measures the voltage in three phases of actual output respectively.
As above said a kind of three-phase is imported single-phase output electro-desalting power supply, it is characterized in that once being input as three-phase, and high pressure is output as single-phase;
As above said a kind of three-phase is imported single-phase output electro-desalting power supply, it is characterized in that its transformer contains the three-phase voltage doubling rectifing circuit, is positive or negative high voltage with the three-phase high-voltage electric rectification;
As above said a kind of three-phase is imported single-phase output electro-desalting power supply, it is characterized in that all scurrying in three groups of coils of primary side of transformer having connect 100% impedance;
As above said a kind of three-phase is imported single-phase output electro-desalting power supply, it is characterized in that different voltage taps is arranged on the second siding ring, can select different output voltages by selector switch K1;
As above said a kind of three-phase is imported single-phase output electro-desalting power supply, it is characterized in that secondary side has one group of three-phase 100V coil to measure the output voltage of three-phase reality respectively.
Description of drawings
Fig. 1 is structural representation of the present invention;
Explanation among Fig. 1:
A, a1-A phase of impedance coil b, b1-B phase of impedance coil c, c1-C phase of impedance coil
A1, x1-A step-up coil b1, y1-B step-up coil c1, z1-C step-up coil
A, X-A phase high-tension coil B, Y-B phase high-tension coil C, Z-C phase high-tension coil
A2, x2-A measure coil b2 mutually, and y2-B measures coil c2 mutually, and z2-C measures coil mutually
K1-voltage-selected switch 1,2,3,4, the voltage gear R-high voltage silicon stack that 5-is different
Fig. 2 is application schematic diagram of the present invention;
Explanation among Fig. 2:
The 1-three-phase is imported single-phase output transformer 2-electro-desalting tank body 3-anode electrode plate
The 4-negative el
Embodiment
Below in conjunction with drawings and Examples content of the present invention is further elaborated.
The alternating current of the three-phase 380V (6000V) that will attract from switchgear house at first, receive a of transformer respectively, b, on the c terminal, from A, B, on the C high-voltage connection terminal high-tension electricity is guided to respectively on three voltage multiplying rectifier silicon stacks, the positive pole of three voltage multiplying rectifier silicon stacks links to each other, deliver on the interior positive electrode plate of electrical desalter, the negative pole of three voltage multiplying rectifier silicon stacks links to each other, and delivers on the interior negative electrode plate of electrical desalter, positive-negative electrode plate will form high voltage electric field, by adjusting the position of K1 selector switch, select different output voltages, in electrical desalter, form ac high-voltage electric field (as shown in Figure 2), by observing the actual measured value of three 100V measurement coils, can calculate the effective electric-field intensity in the electrical desalter.Because positive/negative plate is single-phase load, the electric current of transformer primary side three-phase electricity is identical, thereby has reached the purpose of balance.
Claims (6)
1. a three-phase is imported single-phase output electro-desalting power supply, it is characterized in that its primary side is the three-phase input, secondary side is three-phase output, at the secondary high-pressure coil different taps is arranged, select different output high pressure by selector switch K1, three-phase high-voltage is delivered to three voltage multiplying rectifier silicon stacks respectively, the positive pole of three voltage multiplying rectifier silicon stacks links to each other, form positive pole, the negative pole of three voltage multiplying rectifier silicon stacks links to each other, and forms negative pole.
2. a kind of three-phase according to claim 1 is imported single-phase output electro-desalting power supply, it is characterized in that its transformer contains the three-phase voltage doubling rectifing circuit, is positive or negative high voltage with the three-phase high-voltage electric rectification;
3. a kind of three-phase according to claim 1 is imported single-phase output electro-desalting power supply, it is characterized in that one is input as three-phase, and high pressure is output as single-phase;
4. a kind of three-phase according to claim 1 is imported single-phase output electro-desalting power supply, it is characterized in that all scurrying in three groups of coils of primary side of this power supply having connect 100% impedance;
5. a kind of three-phase according to claim 1 is imported single-phase output electro-desalting power supply, and it is characterized in that has different voltage taps on the second siding ring of this power supply, can select different output voltages by selector switch K1;
6. a kind of three-phase according to claim 1 is imported single-phase output electro-desalting power supply, it is characterized in that secondary side has one group of three-phase 100V coil to measure the output voltage of three-phase reality respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100321130A CN103248244A (en) | 2012-02-10 | 2012-02-10 | Three-phase input single output electric desalting power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100321130A CN103248244A (en) | 2012-02-10 | 2012-02-10 | Three-phase input single output electric desalting power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103248244A true CN103248244A (en) | 2013-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100321130A Pending CN103248244A (en) | 2012-02-10 | 2012-02-10 | Three-phase input single output electric desalting power supply |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104419450A (en) * | 2013-09-09 | 2015-03-18 | 中国石油天然气股份有限公司 | Electric desalting and electric dehydrating power supply equipment and control method thereof |
| CN108923664A (en) * | 2018-05-29 | 2018-11-30 | 中国科学院电工研究所 | Three-phase input single-phase output frequency changer and control strategy |
| CN109039097A (en) * | 2018-09-14 | 2018-12-18 | 西门子电气传动有限公司 | Method for controlling frequency conversion, device, bank electricity system and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2283511Y (en) * | 1997-01-17 | 1998-06-10 | 长江扬中电脱盐设备公司 | AC electro-desalting transformer |
| CN2657280Y (en) * | 2003-10-08 | 2004-11-17 | 朱兴发 | Three-phase bridge rectifier for medium frequency power supply |
| CN201245619Y (en) * | 2007-09-27 | 2009-05-27 | 江苏三星化工有限公司 | Variable frequency pulse crude oil electric desalting and electric dehydration apparatus |
| CN201533188U (en) * | 2009-10-23 | 2010-07-21 | 上海施能电器设备厂 | Combined type charging circuit of magnetic leakage transformer and thyristor |
-
2012
- 2012-02-10 CN CN2012100321130A patent/CN103248244A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2283511Y (en) * | 1997-01-17 | 1998-06-10 | 长江扬中电脱盐设备公司 | AC electro-desalting transformer |
| CN2657280Y (en) * | 2003-10-08 | 2004-11-17 | 朱兴发 | Three-phase bridge rectifier for medium frequency power supply |
| CN201245619Y (en) * | 2007-09-27 | 2009-05-27 | 江苏三星化工有限公司 | Variable frequency pulse crude oil electric desalting and electric dehydration apparatus |
| CN201533188U (en) * | 2009-10-23 | 2010-07-21 | 上海施能电器设备厂 | Combined type charging circuit of magnetic leakage transformer and thyristor |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104419450A (en) * | 2013-09-09 | 2015-03-18 | 中国石油天然气股份有限公司 | Electric desalting and electric dehydrating power supply equipment and control method thereof |
| CN104419450B (en) * | 2013-09-09 | 2016-06-08 | 中国石油天然气股份有限公司 | A kind of electro-desalting electric dehydration power-supply device and control method thereof |
| CN108923664A (en) * | 2018-05-29 | 2018-11-30 | 中国科学院电工研究所 | Three-phase input single-phase output frequency changer and control strategy |
| CN108923664B (en) * | 2018-05-29 | 2020-07-31 | 中国科学院电工研究所 | Three-phase input single-phase output frequency converter and control method |
| CN109039097A (en) * | 2018-09-14 | 2018-12-18 | 西门子电气传动有限公司 | Method for controlling frequency conversion, device, bank electricity system and storage medium |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130814 |