CN216252553U - Special power supply for processing high specific resistance dust - Google Patents
Special power supply for processing high specific resistance dust Download PDFInfo
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- CN216252553U CN216252553U CN202122925136.1U CN202122925136U CN216252553U CN 216252553 U CN216252553 U CN 216252553U CN 202122925136 U CN202122925136 U CN 202122925136U CN 216252553 U CN216252553 U CN 216252553U
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- power supply
- specific resistance
- electric dust
- voltage
- input terminal
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- 239000000428 dust Substances 0.000 title claims abstract description 63
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 21
- 239000010703 silicon Substances 0.000 claims abstract description 21
- 230000005684 electric field Effects 0.000 description 4
- 239000012717 electrostatic precipitator Substances 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
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Abstract
The utility model discloses a special power supply for processing high specific resistance dust, which comprises a linear reactor, a high-voltage transformer, a silicon rectifier, an input terminal, an output terminal, an electric dust remover and a wire inlet cabinet, wherein the linear reactor is connected with the input terminal; the utility model changes the current single-phase power frequency power supply full-wave rectification (100HZ) into half-wave rectification (50HZ), so that the occurrence of back corona probability is reduced in the operation of the electric dust collector, the harm degree can be controlled to be minimum even if back corona occurs, and meanwhile, the electric dust collector has low operation average current and high average voltage, the operation power consumption of the electric dust collector is saved, and the electric dust collector operates stably.
Description
Technical Field
The utility model relates to the technical field of power supplies, in particular to a special power supply for treating high-specific-resistance dust.
Background
The high-voltage dust removal power supply is an important device for continuously providing gas ionization and an electric field, and in order to keep the electric field to be high in dust charging electric field E0 and dust collection electric field Ep, the high-voltage dust removal power supply must have high peak voltage Vp and high average voltage Vav. Although the commonly used single-phase power frequency power supply (GGAJ 02-A/kv) can reach the peak voltage
However, when dust having a specific resistance of 2 × 1010 Ω cm is treated, a phenomenon of a pre-corona period, that is, a primary voltage and a current are unstable and low, and a secondary current and a voltage swing back and forth are also low, is likely to occur. If the secondary voltage is continuously increased, the secondary voltage is low, the secondary current is very high, and stable operation is possible. This is a typical back corona phenomenon, and at this time, the dust removal efficiency is poor, very low, and the power consumption is very high. The current at this time is not used for separating dust particles, but positive ions are discharged from the electrode plate, and the positive ions react with negative ions carried by the dust to discharge, so that a large amount of charges are consumed, and useless work is done.
The power supply of the existing electric dust collector is commonly used: single-phase power frequency power supply (GGAJ (02) -A/kv), high-frequency power supply, high-voltage pulse power supply, three-phase power frequency power supply, etc., wherein:
1. the voltage waveform of the single-phase power frequency power supply is of a full-wave rectification type, the current density is large, the voltage waveform also tends to be flat and high-impedance, and the comprehensive performance of the single-phase power frequency power supply for treating common dust is better. However, the specific resistance was not less than 2X 1010Omega cm dust has poor performance and is very undesirable.
2. A high frequency power supply; the recently developed power supply has high current density, very flat voltage waveform, low impedance and good operation for treating low specific resistance dust. However, the specific resistance was not less than 2X 1010Omega cm dust, the performance is very poor and even fails to operate.
3. A high voltage pulse power supply; recently developed power supplies have very low current densities, very uneven voltage waveforms, and low impedance. At present, the performance is poor, and the dust removal efficiency is low.
4. A three-phase power frequency power supply; the control core technology of the full-wave rectification type power supply is still a single-phase power frequency power supply (GGAJ (02) -A/kv) technology, and the full-wave rectification type power supply has high current density, flat voltage waveform and medium impedance. The operation is better for treating the dust with low specific resistance, and the comprehensive capability of treating the common dust is poor. Specific resistance of 2 x 10 or more10Omega cm dust, the performance is very poor and even fails to operate.
SUMMERY OF THE UTILITY MODEL
In view of the problems in the prior art, the utility model discloses a special power supply for processing high specific resistance dust, which adopts the technical scheme that the special power supply comprises a linear reactor, a high-voltage transformer, a silicon rectifier, an input terminal, an output terminal, an electric dust collector and a wire inlet cabinet; the linear reactor, the high-voltage transformer, the silicon rectifier, the input terminal and the output terminal are fixedly arranged in the wire inlet cabinet; the linear reactor is electrically connected with the input terminal; the silicon rectifier is connected with the linear reactor through a high-voltage transformer; the output terminal is electrically connected with the silicon rectifier; the electric dust collector is electrically connected with the silicon rectifier through the output terminal.
As a preferred technical scheme of the special power supply for processing high specific resistance dust, the input terminal is electrically connected with an external power supply, and the external power supply is an alternating-current two-phase 380V power supply.
In a preferable embodiment of the power supply dedicated for processing high specific resistance dust of the present invention, the linear reactor and the high voltage transformer boost 380V ac power input into the input terminal to 72Kv ac power.
As a preferable technical scheme of the special power supply for processing the high specific resistance dust, the silicon rectifier rectifies 72Kv alternating current transmitted by the high-voltage transformer and then converts the rectified alternating current into direct current pulse 72 Kv.
As a preferred technical scheme of the special power supply for treating the high specific resistance dust, the power supplyThe average voltage of the dust remover is 72kV when the dust remover operates in no-load operation, and the peak voltage is
The valley voltage is about 45kv, the negative pole of the direct current pulse voltage is connected to the corona pole of the electric dust collector, and the positive pole is connected to the body of the electric dust collector.
The utility model has the beneficial effects that: the utility model changes the current single-phase power frequency power supply full-wave rectification (100HZ) into half-wave rectification (50HZ), so that the occurrence of back corona probability is reduced in the operation of the electric dust collector, the harm degree can be controlled to be minimum even if back corona occurs, and meanwhile, the electric dust collector has low operation average current and high average voltage, the operation power consumption of the electric dust collector is saved, and the electric dust collector operates stably.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Detailed Description
Example 1
As shown in figure 1, the utility model discloses a special power supply for processing high specific resistance dust, which adopts the technical scheme that the special power supply comprises a linear reactor, a high-voltage transformer, a silicon rectifier, an input terminal, an output terminal, an electric dust remover and a wire inlet cabinet; the linear reactor, the high-voltage transformer, the silicon rectifier, the input terminal and the output terminal are fixedly arranged in the wire inlet cabinet; the linear reactor is electrically connected with the input terminal; the silicon rectifier is connected with the linear reactor through a high-voltage transformer; the output terminal is electrically connected with the silicon rectifier; the electric dust collector is electrically connected with the silicon rectifier through the output terminal.
As a preferred technical scheme of the special power supply for treating high specific resistance dust, the input terminal is electrically connected with an external power supply, the external power supply is an alternating current two-phase 380V power supply, and the alternating current two-phase 380V power supply inputs 380V alternating current to the input terminal.
As a preferable technical scheme of the special power supply for processing high specific resistance dust, the linear reactor and the high-voltage transformer boost 380V alternating current input in the input terminal to 72Kv alternating current, and the 380V alternating current input in the input terminal is boosted to 72Kv through the linear reactor and the high-voltage transformer and then continuously output.
As a preferred technical scheme of the special power supply for processing high specific resistance dust, the silicon rectifier rectifies 72Kv alternating current transmitted by the high-voltage transformer and then converts the rectified alternating current into direct current pulses 72Kv, and the 72Kv alternating current output from the high-voltage transformer enters the silicon rectifier and is converted into 50Hz direct current of 72Kv and then is output through the output terminal.
As the preferable technical scheme of the special power supply for processing high specific resistance dust, the average voltage of the electric dust collector is 72kV when the electric dust collector operates in no-load, and the peak voltage is
Valley voltage is about 45kv, is connected the corona electrode of electrostatic precipitator with output terminal's negative pole, and the electrostatic precipitator body is connected with output terminal's anodal, starts electrostatic precipitator, begins to remove dust.
The working principle of the utility model is as follows: 380V alternating current is input to an input terminal by an alternating-current two-phase 380V power supply, the 380V alternating current input into the input terminal is boosted to 72Kv through a linear reactor and a high-voltage transformer and then continuously output, the 72Kv alternating current output from the high-voltage transformer enters a silicon rectifier and is changed into 72Kv 50Hz direct current which is then output through the output terminal, a corona electrode of an electric dust remover is connected with a negative electrode of the output terminal, an electric dust remover body is connected with a positive electrode of the output terminal, the electric dust remover is started, and dust removal is started.
The circuit connections involved in the present invention are conventional means employed by those skilled in the art, can be technically inspired by limited trials, and are widely used prior art.
Components not described in detail herein are prior art.
Although the present invention has been described in detail with reference to the specific embodiments, the present invention is not limited to the above embodiments, and various changes and modifications without inventive changes may be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.
Claims (5)
1. A special power supply for processing high specific resistance dust is characterized by comprising a linear reactor, a high-voltage transformer, a silicon rectifier, an input terminal, an output terminal, an electric dust remover and a wire inlet cabinet; the linear reactor, the high-voltage transformer, the silicon rectifier, the input terminal and the output terminal are fixedly arranged in the wire inlet cabinet; the linear reactor is electrically connected with the input terminal; the silicon rectifier is connected with the linear reactor through a high-voltage transformer; the output terminal is electrically connected with the silicon rectifier; the electric dust collector is electrically connected with the silicon rectifier through the output terminal.
2. The special power supply for processing high specific resistance dust according to claim 1, wherein: the input terminal is electrically connected with an external power supply, and the external power supply is an alternating-current two-phase 380V power supply.
3. The special power supply for processing high specific resistance dust according to claim 2, wherein: the linear reactor and the high-voltage transformer boost 380V alternating current input in the input terminal to 72Kv alternating current.
4. The special power supply for processing high specific resistance dust according to claim 3, wherein: the silicon rectifier rectifies the 72Kv alternating current transmitted by the high-voltage transformer into direct current pulse 72 Kv.
5. The special power supply for processing high specific resistance dust according to claim 4, wherein: when the electric dust collector is in no-load operation, the average voltage is 72kV, and the peak voltage is
The valley voltage was about 45 kv.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122925136.1U CN216252553U (en) | 2021-11-26 | 2021-11-26 | Special power supply for processing high specific resistance dust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122925136.1U CN216252553U (en) | 2021-11-26 | 2021-11-26 | Special power supply for processing high specific resistance dust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216252553U true CN216252553U (en) | 2022-04-08 |
Family
ID=80959371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122925136.1U Expired - Fee Related CN216252553U (en) | 2021-11-26 | 2021-11-26 | Special power supply for processing high specific resistance dust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216252553U (en) |
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2021
- 2021-11-26 CN CN202122925136.1U patent/CN216252553U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 638500 No. 1, Guangdian Avenue, Daishi Town, Qianfeng District, Guang'an City, Sichuan Province Patentee after: SICHUAN GUANG'AN POWER GENERATION CO.,LTD. Patentee after: Beijing Green Branch Technology Co.,Ltd. Address before: 638500 No. 1, Guangdian Avenue, Daishi Town, Qianfeng District, Guang'an City, Sichuan Province Patentee before: Sichuan Guang'an Power Generation Co.,Ltd. Patentee before: Beijing Green Branch Technology Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220408 |
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| CF01 | Termination of patent right due to non-payment of annual fee |