CN203355882U - Pulse power supply for electric dust removal - Google Patents
Pulse power supply for electric dust removal Download PDFInfo
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- CN203355882U CN203355882U CN 201320338536 CN201320338536U CN203355882U CN 203355882 U CN203355882 U CN 203355882U CN 201320338536 CN201320338536 CN 201320338536 CN 201320338536 U CN201320338536 U CN 201320338536U CN 203355882 U CN203355882 U CN 203355882U
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Abstract
The utility model discloses a pulse power supply for electric dust removal and aims to solve the problem that a current dust remover adopting a DC composite pulse high-voltage power supply circuit structure is more complex. The pulse power supply comprises a DC high-voltage power supply circuit and a pulse high-voltage power supply circuit, wherein the DC high-voltage power supply circuit is connected with a dust remover; the pulse high-voltage power supply circuit and the DC high-voltage power supply circuit which are coupled are used for powering up the dust remover; the pulse high-voltage power supply circuit comprises an AC/DC converting circuit and a pulse transformer, one end of a primary side of the pulse transformer is connected with the AC/DC converting circuit through an energy storage capacitor on one hand, and is grounded together with the other end of the primary side of the pulse transformer through an electronic switch on the other hand; one end of a secondary side of the pulse transformer is connected with a connection point of the DC high-voltage power supply circuit and the dust remover through a high-voltage coupling capacitor, while the other end of the secondary side of the pulse transformer is grounded. According to the utility model, a self-provided coil of the pulse transformer and an equivalent capacitor of an electric field of the dust remover are utilized, so that the circuit of the pulse power supply is simplified.
Description
Technical field
The utility model design electric cleaner equipment, specifically refer to a kind of electric precipitation pulse power.
Background technology
Traditional electric cleaner adopts the dedusting power source that is to provide HVDC, and the negative pole of dedusting power source connects corona discharge electrode and produces corona discharge, makes powder dust particle charged, and, under the effect of electric field force, powder dust particle is separated and collected from gas.The efficiency of dust collection of electric cleaner depends on the migration velocity of charged dust, migration velocity is directly proportional to secondary voltage peak value (being the dedusting crest voltage) and the particle diameter of dust, but be subject to Power Limitation, the secondary voltage peak value of traditional electric cleaner can not meet some bulky grain dedusting requirement.Simultaneously along with the continuous accumulation of dust on the electric cleaner dust collecting electrode, due to residual charge skewness in dust, can back corona phenomenon, anti-corona can fall the anion in deduster is compound, and then can affect the performance of deduster.
For this reason, there is the Chinese patent that publication No. is CN102847610A to disclose direct current composite pulse high voltage source for a kind of electrostatic precipitator, three-phase alternating current is connected to resonance circuit after over commutation, the electronic switch that resonance circuit forms by a diode and IGCT inverse parallel is controlled and is produced high voltage pulse, need to arrange in addition compound circuit by high voltage pulse and effect under, high impulse pressure and DC voltage is compound, improve the secondary voltage peak value, high voltage pulse has also prevented the generation of anti-corona simultaneously, but need to arrange the complexity that special compound circuit increases circuit in its circuit structure, also can't adjust single pulse voltage energy size simultaneously, affected the scope of application.
The utility model content
The utility model provides a kind of electric precipitation pulse power, and circuit is simpler, and possesses the energy adjusting function, applied widely.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: a kind of electric precipitation pulse power, comprise high direct voltage power supply circuits and high voltage pulse power supply circuits, described high direct voltage power supply circuits connect deduster, the high voltage pulse power supply circuits are coupled to the high direct voltage power supply circuits, described high voltage pulse power supply circuits comprise ac-dc converter circuit and pulse transformer, one end of the primary side of pulse transformer connects ac-dc converter circuit on the one hand through a storage capacitor, on the other hand through the other end of an electronic switch and pulse transformer primary side altogether, secondary side one end of described pulse transformer is connected to the tie point of high direct voltage power supply circuits and deduster through a high pressure coupling capacitance, other end ground connection.The high direct voltage power supply circuits provide basic voltage for deduster, the equivalent capacity of storage capacitor, pulse transformer, high pressure coupling capacitance and deduster electric field forms resonant tank jointly, the conducting that electronic switch is controlled resonant tank makes high voltage pulse power supply circuits output negative voltage pulse, and by resonant tank, be coupled on the high direct voltage of high direct voltage power supply circuits, because the equivalent capacity of the coil that has utilized pulse transformer to carry and deduster electric field has been simplified circuit of the present utility model.
As preferably, described ac-dc converter circuit comprises low-voltage alternating current power supply, the first step-up transformer, the first rectifier bridge peace ripple inductance of series connection successively, and flat ripple inductance connects described storage capacitor.
As further improvement, connect the first silicon controlled module between described low-voltage alternating current power supply and the first step-up transformer.Utilize silicon controlled module regulating impulse voltage, to meet different dedusting needs.
As preferably, described high direct voltage power supply circuits comprise low-voltage alternating current power supply, the second step-up transformer, the second rectifier bridge and the LC wave filter of series connection successively, and the LC filter output connects deduster.
As further improvement, connect the second silicon controlled module between described low-voltage alternating current power supply and the second step-up transformer.Utilize silicon controlled module to regulate basic voltage, to meet different dedusting needs.
As preferably, described electronic switch is IGBT module and parallel IGBT holding circuit.The IGBT module needs the IGBT holding circuit to guarantee its normal operation.When IGBT opens, the common resonant tank starting oscillation formed of the equivalent capacity of storage capacitor, pulse transformer, high pressure coupling capacitance and deduster electric field, the high voltage pulse power supply circuits produce high-voltage pulse, when the electric current by IGBT arrives zero crossing, the built-in anti-paralleled diode conducting by the IGBT module, stop exporting pulse, until electric current drops to zero.Adjust IGBT module conducting situation and can adjust the frequency of pulse.
As further improvement, described IGBT holding circuit comprises diode and the electric capacity of series connection, a resistance in parallel on diode.The diode of series connection and electric capacity form absorbing circuit, and resistance provides the capacitor discharge path.
After adopting technique scheme, the utlity model has following advantage: the high voltage pulse power supply circuits are coupled to the high direct voltage power supply circuits, for deduster provides high voltage pulse, prevented back corona phenomenon, the coil that the high voltage pulse power supply circuits have utilized pulse transformer to carry and the equivalent capacity of deduster electric field have been simplified circuit structure, can realize the adjustment of supply voltage energy and frequency has been increased to the scope of application by silicon controlled module and IGBT module, save electric energy.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described further:
Fig. 1 is the utility model electrical block diagram.
The specific embodiment
As shown in Figure 1, a kind of electric precipitation pulse power, comprise high direct voltage power supply circuits 1 and high voltage pulse power supply circuits 2, described high direct voltage power supply circuits 1 connection deduster 3 not deduster 3 provides basic voltage to start the dedusting program, high voltage pulse power supply circuits 2 are coupled to high direct voltage power supply circuits 1, high direct voltage power supply circuits 1 and high voltage pulse power supply circuits 2 shared low-voltage alternating current power supply 4, in actual use, low-voltage alternating current power supply 4 is the low-voltage three-phase AC power supply, described high voltage pulse power supply circuits comprise ac-dc converter circuit 21 and pulse transformer 22, described ac-dc converter circuit 21 comprises the low-voltage alternating current power supply 4 of series connection successively, the first step-up transformer 211, the peaceful ripple inductance L 1 of the first rectifier bridge 212, by step-up transformer 211, boosted voltage is met to the needed voltage request of deduster 3, the peaceful ripple inductance L 1 of the first rectifier bridge 212 changes alternating current into galvanic current.One end of the primary side of described pulse transformer 22 connects ac-dc converter circuit 21 on the one hand through a storage capacitor C1, on the other hand through the other end of an electronic switch and pulse transformer primary side altogether, secondary side one end of described pulse transformer is connected to the tie point of high direct voltage power supply circuits 1 and deduster 3, other end ground connection through a high pressure coupling capacitance C2.Described storage capacitor C1 connects flat ripple inductance L 1.
The equivalent capacity of storage capacitor C1, pulse transformer 22, high pressure coupling capacitance C2 and deduster 3 electric fields forms resonant tank jointly, the conducting that electronic switch is controlled resonant tank makes high voltage pulse power supply circuits 2 output negative voltage pulses, and be coupled to by resonant tank on the high direct voltage of high direct voltage power supply circuits 1 and provide high voltage pulse for deduster 3, prevented back corona phenomenon, because the equivalent capacity of the coil that has utilized pulse transformer 22 to carry and deduster electric field has been simplified circuit of the present utility model.Connect the first silicon controlled module 213 between described low-voltage alternating current power supply 4 and the first step-up transformer 211, can adjust the voltage energy size, meet different dedusting demands.
Described electronic switch is IGBT module 5 and parallel IGBT holding circuit.Described IGBT holding circuit comprises diode D1 and the capacitor C 3 of series connection, the upper resistance R 1 in parallel of diode D1.The IGBT module needs the IGBT holding circuit to guarantee its normal operation, and wherein diode D1 and capacitor C 3 form absorbing circuit, and the discharge path of capacitor C 3 is provided by resistance R 1.When IGBT opens, the common resonant tank starting oscillation formed of the equivalent capacity of storage capacitor C1, pulse transformer 22, high pressure coupling capacitance C2 and deduster electric field, the high voltage pulse power supply circuits produce high-voltage pulse, when the electric current by IGBT arrives zero crossing, the built-in anti-paralleled diode conducting by the IGBT module, stop exporting pulse, until electric current drops to zero, adjust the frequency that IGBT module conducting situation can be adjusted pulse.
Described high direct voltage power supply circuits 1 comprise low-voltage alternating current power supply 4, the second step-up transformer 11, the second rectifier bridge 12 and the LC wave filter 13 of series connection successively, and LC wave filter 13 outputs connect deduster 3.Connect the second silicon controlled module 14 between described low-voltage alternating current power supply 4 and the second step-up transformer 11.High direct voltage power supply circuits 1 alternating current-direct current transforms identical with the principle of described high voltage pulse power supply circuits 2, by LC wave filter 13, guarantees stable output, and the silicon module is controlled in same passing through can adjust the voltage energy size, meets different dedusting demands.
Except above preferred embodiment, the utility model also has other embodiment, those skilled in the art can make various changes and distortion according to the utility model, only otherwise break away from spirit of the present utility model, all should belong to the defined scope of the utility model claims.
Claims (7)
1. the electric precipitation pulse power, comprise high direct voltage power supply circuits (1) and high voltage pulse power supply circuits (2), described high direct voltage power supply circuits (1) connect deduster (3), high voltage pulse power supply circuits (2) are coupled to high direct voltage power supply circuits (1), described high voltage pulse power supply circuits comprise ac-dc converter circuit (21) and pulse transformer (22), it is characterized in that: an end of the primary side of pulse transformer (22) connects ac-dc converter circuit (21) on the one hand through a storage capacitor (C1), on the other hand through the other end of an electronic switch and pulse transformer primary side altogether, secondary side one end of described pulse transformer is connected to the tie point of high direct voltage power supply circuits (1) and deduster (3) through a high pressure coupling capacitance (C2), other end ground connection.
2. the electric precipitation pulse power according to claim 1, it is characterized in that: described ac-dc converter circuit (21) comprises low-voltage alternating current power supply (4), the first step-up transformer (211), the peaceful ripple inductance of the first rectifier bridge (212) (L1) of series connection successively, and flat ripple inductance (L1) connects described storage capacitor (C1).
3. the electric precipitation pulse power according to claim 2, is characterized in that: connect the first silicon controlled module (213) between described low-voltage alternating current power supply (4) and the first step-up transformer (211).
4. the electric precipitation pulse power according to claim 1, it is characterized in that: described high direct voltage power supply circuits (1) comprise low-voltage alternating current power supply (4), the second step-up transformer (11), the second rectifier bridge (12) and the LC wave filter (13) of series connection successively, and LC wave filter (13) output connects deduster (3).
5. the electric precipitation pulse power according to claim 4, is characterized in that: connect the second silicon controlled module (14) between described low-voltage alternating current power supply (4) and the second step-up transformer (11).
6. the electric precipitation pulse power according to claim 1, it is characterized in that: described electronic switch is IGBT module (5) and parallel IGBT holding circuit.
7. the electric precipitation pulse power according to claim 6, it is characterized in that: described IGBT holding circuit comprises diode (D1) and the electric capacity (C3) of series connection, the upper resistance in parallel (R1) of diode (D1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320338536 CN203355882U (en) | 2013-06-09 | 2013-06-09 | Pulse power supply for electric dust removal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320338536 CN203355882U (en) | 2013-06-09 | 2013-06-09 | Pulse power supply for electric dust removal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203355882U true CN203355882U (en) | 2013-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320338536 Expired - Lifetime CN203355882U (en) | 2013-06-09 | 2013-06-09 | Pulse power supply for electric dust removal |
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| Country | Link |
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| CN (1) | CN203355882U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103350031A (en) * | 2013-06-09 | 2013-10-16 | 浙江菲达环保科技股份有限公司 | Pulse power supply used in electric precipitation |
| CN109382211A (en) * | 2017-08-14 | 2019-02-26 | 北京吉鼎环保科技有限公司 | The electrostatic precipitation pulse power |
-
2013
- 2013-06-09 CN CN 201320338536 patent/CN203355882U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103350031A (en) * | 2013-06-09 | 2013-10-16 | 浙江菲达环保科技股份有限公司 | Pulse power supply used in electric precipitation |
| CN109382211A (en) * | 2017-08-14 | 2019-02-26 | 北京吉鼎环保科技有限公司 | The electrostatic precipitation pulse power |
| CN109382211B (en) * | 2017-08-14 | 2024-05-07 | 北京吉鼎环保科技有限公司 | Electrostatic dust removal pulse power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131225 |