CN201799325U - Novel power supply for electric dust collector - Google Patents
Novel power supply for electric dust collector Download PDFInfo
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- CN201799325U CN201799325U CN2010202784805U CN201020278480U CN201799325U CN 201799325 U CN201799325 U CN 201799325U CN 2010202784805 U CN2010202784805 U CN 2010202784805U CN 201020278480 U CN201020278480 U CN 201020278480U CN 201799325 U CN201799325 U CN 201799325U
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Abstract
The utility model provides a novel power supply for an electric dust collector. The novel power supply comprises a power frequency rectifier transformer and an isolating switch cabinet used together with the power frequency rectifier transformer, wherein a high-frequency pulse energizer comprising a rectification circuit is mounted between the power frequency rectifier transformer and the isolating switch cabinet; the output terminal of the rectification circuit is connected with a filter circuit; voltage processed by the filter circuit is transmitted to an inverter circuit; voltage received inversion treatment is transmitted to a pulse transformer; and high-frequency pulse voltage is obtained from the pulse transformer and output to and superposed on the output voltage of the power frequency rectifier transformer. The high-frequency pulse energizer used by the power supply in the utility model can improve the stability and reliability of the whole power supply and greatly improve the corona effect, so as to improve the dust removal efficiency, reduce the power consumption and achieve the purposes of high efficiency and energy conservation simultaneously; besides, the whole equipment has good sealing effect, is rain-proof, dust-proof, and compact, is suitable for outdoor installation and unattended operation, and can not only lower the construction complexity, but also reduce the cost investment of installation, thereby achieving economical and practical use.
Description
Technical field
The present invention relates to industrial electro dedusting field, more particularly, relate to the used power supply that can improve efficiency of dust collection of industrial electro deduster.
Background technology
The dust of industries such as present electric power, metallurgy, building materials discharging flue gas is handled most occasions and is all adopted electric cleaner, existing electric cleaner commonly used all adopts the power supply of industrial frequency rectifying power supply, rectifier transformer is in the outdoor installation of dust remover roof, and this dedusting technology and power configuration were continued to use nearly 40 years.
Wherein, the supporting power supply overwhelming majority of electric cleaner is the power frequency controlled rectification power supply, as shown in Figure 1, the power supply of electric cleaner commonly used comprises industrial frequency rectifying transformer 1 and the isolating switch cabinet 2 that is attached thereto under the prior art, wherein, industrial frequency rectifying transformer 1 is by the common power power supply, and isolating switch cabinet 2 links to each other with the dirt pocket of deduster.The rectifier output voltage negative terminal is applied on the electric cleaner cathode line, and output voltage anode and electric cleaner pole plate be ground connection simultaneously.The output voltage grade is 60kV, 72kV, 80kV etc., and is specifically different and different with the positive plate spacing because of the electric cleaner cathode line.The negative dc pulse moving voltage of 100Hz that is applied on the electric cleaner cathode line has two effects: thus one, make the most advanced and sophisticated corona discharge that takes place of cathode line produce space charge; Two, at the electric cleaner pole plate---form certain electric-field intensity between the polar curve, make dust granule after charged produce directed movement and on pole plate, capture.Near crest voltage more than the 30kV space cathode line tip forms high field intensity, makes air ionization produce corona discharge, and space charge spreads and upward moves to pole plate attached to dirt group; The following basic voltage of 30kV is filtered into the capture voltage of DC voltage as dust by the electric cleaner capacitive load.Space charge density then is the principal element that is related to the electric cleaner efficiency of dust collection, is applied to the electric-field intensity that voltage waveform, voltage peak on the cathode line then directly has influence near the space cathode line tip, and promptly relative influence is to space charge density.The fundamental characteristics that can bear peak voltage more at short notice by high-frequency discharge characteristic and dielectric as can be known, the corona effects that the above high frequency voltage comparison 100Hz dc pulse moving voltage of 20KHz is produced must be significantly improved.And the move distance of space charge is that the space size of electric precipitation chamber also influences efficiency of dust collection as known from the above.
Raising year by year along with environmental emission standard, the factors such as variation of process conditions, coal-fired kind, cause the efficiency of dust collection that has electric cleaner commonly used now can not satisfy the requirement of current discharge standard, this just faces the transformation of electric cleaner, technologically speaking, the transformation of electric cleaner has dual mode, and the one, the power supply that upgrades now used electric cleaner is to change the corona effects that high frequency voltage produces; The 2nd, remove existing electric cleaner commonly used, to change then and build bigger electric cleaner, the second way not only needs to take bigger space, and needs very big fund input, and enterprise is reduced cost, and it is unfavorable to enhance productivity.Than the second way, first kind of mode constructed fairly simple, but the power supply under the prior art can not produce the above high frequency voltage of 20KHz, and the mode of the more new power under the prior art normally replaces used industrial frequency rectifying power supply now fully with the new technology power supply, whole power supply replacement cost height like this, construction relative complex are unfavorable for reducing cost and improving efficiency of construction.
Summary of the invention
The object of the present invention is to provide a kind of cost low, install simple, can effectively improve the novel power supply that is used for electric cleaner of efficiency of dust collection, novel power supply of the present invention is to improve on the basis of original power supply, need not change new power fully and just can reach the purpose that improves efficiency of dust collection.
In order to achieve the above object, the invention provides a kind of novel power supply that is used for electric cleaner, comprise the industrial frequency rectifying transformer, supporting with it isolating switch cabinet is equipped with the high-frequency impulse energizer between described industrial frequency rectifying transformer and the isolating switch cabinet.Described high-frequency impulse energizer comprises rectification circuit, the output of rectification circuit links to each other with filter circuit, the voltage of wave circuit processing is sent to inverter circuit after filtration, deliver in the pulse transformer through the voltage that inversion is handled, obtain high-frequency pulse voltage from pulse transformer at last, and export on the output voltage of the industrial frequency rectifying transformer that is added to.
The invention has the advantages that, output at original industrial frequency rectifying power supply increases a high-frequency impulse energizer, need not to change fully new power, just can improve the stability and the reliability of whole power supply, and improve corona effects greatly, with the raising efficiency of dust collection, and can reduce power consumption simultaneously, reach efficient, purpose of energy saving.The high-frequency impulse energizer good seal that novel power supply of the present invention adopted, rain-proof dust-proof, compact appearance is suitable for outdoor installation and unattended operation, not only reduces the construction complexity, also reduces the cost input of installing, and economy is practical again.
Description of drawings
Fig. 1 is the used power supply scheme of installation of electric cleaner under the prior art;
Fig. 2 is a novel power supply scheme of installation of the present invention;
Fig. 3 is the theory diagram schematic diagram of the high-frequency impulse energizer that adopts of novel power supply of the present invention;
Fig. 4 is the surface structure schematic diagram of the high-frequency impulse energizer that adopts of novel power supply of the present invention;
Fig. 5 be among Fig. 4 A to schematic side view.
The specific embodiment
As shown in Figure 2, the novel power supply that is used for electric cleaner of the present invention, comprise industrial frequency rectifying transformer 1 and supporting with it isolating switch cabinet 2, between industrial frequency rectifying transformer 1 and the isolating switch cabinet 2 high-frequency impulse energizer 3 is installed, high-frequency impulse energizer 3 is installed in the industrial frequency rectifying power output end, and the power supply 4 identical with the use of industrial frequency rectifying transformer powered, make the output voltage of the high-frequency impulse of this high-frequency impulse energizer output and industrial frequency rectifying transformer superimposed, jointly the dirt pocket of electric cleaner is controlled.
Wherein, the purpose of high-frequency impulse energizer is the high-frequency pulse voltage of a 20kVpp of stack on the negative dc high voltage of industrial frequency rectifying power supply, improving corona effects, thereby improves the state-of-charge of dust, improves efficiency of dust collection.
As shown in Figure 3, high-frequency impulse energizer 3, comprise rectification circuit, rectification circuit links to each other with power supply, be sent to filter circuit by the voltage signal after the rectification and carry out filtering, the voltage after the filtering is sent in the inverter circuit handles then, what inverter circuit produced is the sinusoidal resonance waveform, the inverter power device is in the soft switch working state of nature, so the power consumption during turn-on and turn-off is very little; The excitation voltage that reactive component produces feeds back to the over-voltage breakdown that can not cause the inverter power device in the dc source, has very high operation stability and reliability.Handle voltage signal afterwards through inverter circuit and deliver in the pulse transformer, be converted into high-frequency impulse, export on the output voltage of the industrial frequency rectifying transformer that is added to then by pulse transformer.Wherein, shown in Figure 4 and 5, the rectification circuit of high-frequency impulse energizer and filter circuit are encapsulated in the electric cabinet 31 together, and inverter circuit and pulse transformer circuit mutual encapsulation are in a leakproof fuel cell 32.So both guaranteed radiating effect, and made high-frequency impulse energizer compact appearance again, rain-proof dust-proof is more suitable for outdoor installation, unattended operation.
The input of high-frequency impulse energizer, output all adopt dry core cable to connect, and do not adopt porcelain vase to connect, the maximum high frequency pulse generator floor space that reduces.The outdoor layout at the electric cleaner top, simple possible is installed at the high scene that makes.
The high-power output of dizzy effect of the forceful electric power of high-frequency impulse energizer and industrial frequency rectifying voltage mutually combines, make novel power supply of the present invention under situation cheaply, effectively improve the efficiency of dust collection of electric cleaner, and construction is oversimplified, easy to operate, the consumption of changing and keeping in repair is little.
The above; only be the preferable specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, all should be encompassed within protection scope of the present invention.
Claims (2)
1. a novel power supply that is used for electric cleaner comprises industrial frequency rectifying transformer (1), and supporting with it isolating switch cabinet (2) is characterized in that,
Between described industrial frequency rectifying transformer (1) and the isolating switch cabinet (2) high-frequency impulse energizer (3) is installed,
Described high-frequency impulse energizer (3) comprises rectification circuit, the output of rectification circuit links to each other with filter circuit, the voltage of wave circuit processing is sent to inverter circuit after filtration, deliver in the pulse transformer through the voltage that inversion is handled, obtain high-frequency pulse voltage from pulse transformer at last, and export on the output voltage of the industrial frequency rectifying transformer that is added to.
2. the novel power supply that is used for electric cleaner according to claim 1 is characterized in that,
The rectification circuit of described high-frequency impulse energizer (3) and filter circuit are encapsulated in the electric cabinet (31) together; Described inverter circuit and pulse transformer mutual encapsulation are in a leakproof fuel cell (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202784805U CN201799325U (en) | 2010-07-27 | 2010-07-27 | Novel power supply for electric dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202784805U CN201799325U (en) | 2010-07-27 | 2010-07-27 | Novel power supply for electric dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201799325U true CN201799325U (en) | 2011-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202784805U Expired - Fee Related CN201799325U (en) | 2010-07-27 | 2010-07-27 | Novel power supply for electric dust collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201799325U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102500468A (en) * | 2011-10-18 | 2012-06-20 | 艾尼科环保技术(安徽)有限公司 | High-voltage and medium-frequency power supply for electrostatic dust collector and power supply method thereof |
-
2010
- 2010-07-27 CN CN2010202784805U patent/CN201799325U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102500468A (en) * | 2011-10-18 | 2012-06-20 | 艾尼科环保技术(安徽)有限公司 | High-voltage and medium-frequency power supply for electrostatic dust collector and power supply method thereof |
| CN102500468B (en) * | 2011-10-18 | 2015-09-23 | 艾尼科环保技术(安徽)有限公司 | A kind of electrostatic precipitator high pressure intermediate frequency power supply and method of supplying power to thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20180727 |